Search Results — 2000 specimen records retrieved (1366 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  CHSC22697  Abronia latifolia Robert A. Schlising; Glenn Keator 1962-2-3 2043 San Mateo Sand dunes along Hwy 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  CAS-BOT-BC383897  Abronia latifolia W. R. Dudley 1891-7-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  SEINET11941811  Abronia latifolia Unknown 1932-1 9119 San Mateo Half Moon Bay Comment
  POM141269  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC219605  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo Emerald Lake, west of Redwood City Comment
  CAS-BOT-BC219611  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  JROH153  Acer macrophyllum Le Roy Abrams 1902-4-6 2314 San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
Read comments
Feb 20 2015
  RSA46810  Acer macrophyllum Doris K. Kildale 1929-6-19 8015 San Mateo Kings Mountain Comment
  JROH169  Acer negundo John Hunter Thomas 1978-7-8 19258 San Mateo Jasper Ridge Biological Preserve, Stanford University 85 Comment
  CAS-BOT-BC337446  Acer negundo var. negundo J. H. Thomas 1954-4-21 3942 San Mateo San Francisquito Creek 0 Comment
  CAS-BOT-BC21585  Achillea millefolium Fred Hemphill 1973-5-6 749 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21593  Achillea millefolium Javier Penalosa 1963-3-30 2750 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CHSC67013  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Hwy. 1. On roadcut 100 ft. +/- above the ocean. Comment
  JROH442  Achillea millefolium John H. Thomas 1967-5-31 12934 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 154 Comment
  CAS-BOT-BC21576  Achillea millefolium David D. Keck 1939-7-1 5011 San Mateo 3 mi. S. of Pescadero, 1 mile from the ocean 60 Comment
  CAS-BOT-BC21595  Achillea millefolium Catherine Toschi 1963-2-23 63 :15 San Mateo San Bruno Mountains above Crocker Avenue 152 Comment
  RSA719885  Achillea millefolium Linda E. Watson 1996-5-17 96 -1 San Mateo In Pescadero State Beach on CA1, just south of San Gregorio. Comment
  JROH2060  Acmispon americanus var. americanus John Hunter Thomas 1977-6-16 18755 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH2052  Acmispon brachycarpus Toni Corelli 2005-6-8 293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 Comment
  JROH2074  Acmispon glaber var. glaber John Hunter Thomas 1981-5-25 20620 San Mateo Jasper Ridge Biological Preserve, Stanford University 164 Comment
  OBI12966  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  JROH2102  Acmispon wrangelianus John Hunter Thomas 1978-4-25 19152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391680  Actaea rubra George Oberlander 1949-6-25 237 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  SEINET10573362  Actaea rubra Ernest A. McGregor McGregor s.n. San Mateo Santa Cruz Mountain Peninsula Comment
  RSA176544  Actaea rubra subsp. arguta John H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 610 Comment
  SDSU2646  Adelinia grandis D. F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno. 91 Comment
  CAS-BOT-BC139951  Adenostoma fasciculatum Fred Hemphill 1973-4-15 660 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  LA27800  Adenostoma fasciculatum L. S. Rose; 1941-6-12 41270 San Mateo Rocky ridges, Emerald lake, hills W. of Redwood City 120.0 Comment
  UCR139358  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  JROH3581  Adenostoma fasciculatum var. fasciculatum Gelsomina Smith 1951-6-5 122 San Mateo Jasper Ridge Biological Preserve, Stanford University 121 Comment
Read comments
Feb 26 2015
  JROH3582  Adenostoma fasciculatum var. fasciculatum Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA453174  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1935-6-9 35212 San Mateo Emerald lake, W. of Redwood City. Comment
  CAS-BOT-BC65515  Adiantum aleuticum George Oberlander 1950-3-11 440 San Mateo Pilarcitos Canyon Comment
  JROH92  Adiantum jordanii John Hunter Thomas 1981-4-5 20285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  LA16623  Aesculus californica C. B. Wolf; 1934-11-13 6242 San Mateo Menlo Park, at Cambridge Ave. & Cornell Rd., NW of San Francisquito Creek 15 Comment
  SEINET1908063  Aesculus californica Carl B. Wolf 1934-1 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave. & Cornell Rd., N.W. of San Francisco Creek 15 Comment
  CAS-BOT-BC22976  Agoseris grandiflora var. grandiflora David D. Keck 1932-5-6 1460 San Mateo Belmont Comment
  CAS-BOT-BC46175  Agoseris heterophylla Ned Cahill 1974-4-29 178 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH5952  Agoseris heterophylla John Rawlings 2017-4-3 2014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5 serpentine prairie up-slope from trail 122 Comment
  RSA116783  Agoseris hirsuta W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15247  Agoseris hirsuta Elizabeth McClintock; Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, top of ridge East of Nike Station Comment
  RSA416446  Agoseris hirsuta Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive Comment
  JROH4770  Agrostis avenacea John Hunter Thomas 1979-9-9 19727 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake 110 Comment
  SJSU15815  Agrostis densiflora John Rawlings, Toni Corelli 2016-5-13 1898 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  CAS-BOT-BC127380  Agrostis exarata R. E. Frenkel 1964-5-22 503 San Mateo SFWD, on Portola Ridge Road, 0.3 mile north of Sawyer Ridge Road. 268 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
  JROH4784  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  POM88024  Agrostis exarata Le Roy Abrams 1901-5-14 1640 San Mateo Stanford University, Jasper Ridge Comment
Read comments
Feb 18 2012
  UCD52545  Agrostis exarata Malcolm A. Nobs; S. Galen Smith Date Unknown 1562 San Mateo at Sharp Park. Comment
  POM199091  Agrostis hallii A. D. E. Elmer 1903-06 4264 San Mateo Alpine School House. Comment
  JROH4805  Agrostis stolonifera Toni Corelli 2006-9-20 339 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12, upper embankment just above Corte Madera Creek. 108 Comment
  RSA187472  Aira caryophyllea John H. Thomas 1965-4-29 10614 San Mateo San Bruno Mountain in northern part of county. 305 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
  SEINET3917685  Aira caryophyllea K. Harper 1984-4-25 84 -7 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  CAS-BOT-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  CAS-BOT-BC138246  Aira caryophyllea var. caryophyllea H. A. Borthwick 1920-6-1 187 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  CAS-BOT-BC138249  Aira caryophyllea var. caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC177089  Albizia lophantha Phillip C. Wheeler 1965-6-8 s.n. San Mateo [Bay shore] Bayshore, cut area Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  JROH4547  Allium amplectens Toni Corelli 2005-5-18 288 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1 m west of Road F 174 Comment
  CAS-BOT-BC467292  Allium dichlamydeum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. Rocky soil-north facing slope Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC467296  Allium dichlamydeum Ned Cahill 1974-5-13 245 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  SEINET5629385 Image available Allium dichlamydeum Unknown 1907-1 8564 San Mateo Back of San Mateo on the Half Moon Bay Rd. Comment
  POM169881  Allium falcifolium A. D. E. Elmer 1903-06 4831 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC469033  Allium falcifolium G. C. Kimber; Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge; Santa Cruz Mountain Peninsula Comment
  SEINET3558047 Image available Allium lacunosum Lewis S. Rose 1932-5-3 32223 San Mateo Redwood City. 183 Comment
  JROH5657  Allium peninsulare var. franciscanum Toni Corelli 2013-5-14 381 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-BC475448  Allium serra John H. Thomas 1969-4-24 14905 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  JROH1326  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek, below dam Comment
  JROH1329  Alnus rhombifolia John Hunter Thomas 1992-5-26 25351 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek near bridge & below the dam Comment
  RSA15281  Alnus rhombifolia C. B. Wolf 1927-4-3 247 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC169344  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  CAS-BOT-BC169346  Alnus rubra Lewis S. Rose 1955-11-7 55189 San Mateo Tunitas stream banks 30 Comment
  UC5355  Alnus rubra J. Burtt Davy 1895-4-21 1062 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC523926  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula: San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave. 15 Comment
  JROH179  Amaranthus retroflexus John H. Thomas 1974-10-29 17651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  SD39996  Ambrosia chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 miles south of Pigeon Point on open dune areas Comment
  CDA9963  Ambrosia chamissonis F. L. Blanc 1960-6-28 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  JROH3593  Amelanchier utahensis Roxana Stinchfield 1914-4-26 145 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  JROH3594  Amelanchier utahensis John H. Thomas 1973-5-5 16766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2942  Ammannia robusta John Hunter Thomas 1982-11-6 21214 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  NY334934  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC27473  Amsinckia maculata Alice Eastwood 1915-6-13 4723 San Mateo Granada Comment
  JROH1352  Amsinckia menziesii John Hunter Thomas 1987-4-7 24178 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  CAS-BOT-BC391910  Anemone grayi Elmer I. Applegate 1895-3-9 3 1/2 San Mateo Woodside Comment
  POM132762  Angelica tomentosa var. tomentosa C. F. Baker 1903-6-30 3354 San Mateo Crystal Springs Comment
  CAS-BOT-BC273172  Anisocarpus madioides W. R. Dudley 1895-6-5 4209 San Mateo Santa Cruz Mountain Peninsula. Redwoods - Pescadero Creek Comment
  CAS-BOT-BC273176  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC273174  Anisocarpus madioides W. R. Dudley 1895-6-6 4209 San Mateo Santa Cruz Mountain Peninsula. Banks of Woods of Conifers near Pescadero Creek - also on summit of Big Basin Comment
  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
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  SEINET5539055  Antennaria luzuloides H. S. Gentry 1931-1 84 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC280645  Anthoxanthum occidentale L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH203  Anthriscus caucalis John Hunter Thomas 1989-5-5 24658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA492536  Anthriscus caucalis Lyman Benson 1935-5-5 6521 San Mateo Lake Searsville 152 Comment
  JROH198  Anthriscus caucalis John H. Thomas 1974-5-3 17242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS5265  Antirrhinum kelloggii R. F. Hoover 1941-4-23 4905 San Mateo Redwood City hills Redwood City Comment
  CAS-BOT-BC454478  Aphanes occidentalis John H. Thomas 1961-5-7 9269 San Mateo San Bruno Mountain in Northern part of county. 396 Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3612  Aphanes occidentalis John Hunter Thomas 1990-4-26 24815 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path near Rattlesnake Rocks Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC454493  Aphanes occidentalis Ned Cahill 1975-2-21 406 San Mateo Chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC435124  Aptenia cordifolia J. H. Thomas 1964-4-30 10336 San Mateo Near intersection of El Camino Real and F St., Colma. Comment
  POM270570  Aquilegia formosa var. truncata Lyman Benson 1928-4-21 94 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  CAS-BOT-BC17316  Arabis blepharophylla Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains. Buckeye Canyon. Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  RSA254234  Arabis blepharophylla Robert A. Norris 1975-3-31 2295 San Mateo by Radio Road near one of summits, San Bruno Mts. Comment
  UC967208  Arabis blepharophylla L. Constance, R. Bacigalupi, and C. R. Bell 1951-3-25 3369 San Mateo se side Colma Canyon 60 Comment
  JEPS90213  Arabis glabra Dean W. Taylor 1988-3-30 9470 San Mateo near the ridgecrest of northern slope of se ridge of San Bruno Mountain (Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mountain); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  CAS-BOT-BC171643  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  RSA15297  Arbutus menziesii C. B. Wolf 1927-4-3 267 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  UC762227  Arbutus menziesii R. F. Hoover 1941-2-12 4765 San Mateo nw of Saratoga Summit Comment
  UC1212008  Arctostaphylos James Roof 1961-4-18 San Mateo mt. spur 1/4 mi ne summit; San Bruno Mountain 335 Comment
  CAS-BOT-BC24198  Arctostaphylos andersonii A. T. Harrison 1970-3-13 s.n. San Mateo San Francisco Watershed reserve. On ridge west of Old Whipple Rd. on western extension of Edgewood Rd. Comment
  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-BC23510  Arctostaphylos crustacea Margaret A. Barry 1938-5-22 s.n. San Mateo Small patch on top of Coal Mine Ridge Comment
  CAS-BOT-BC23548  Arctostaphylos crustacea Robert Francis Hoover 1941-2-12 4763 San Mateo Northwest of Saratoga Summit Comment
  SEINET11977765  Arctostaphylos crustacea J. I. McMurphy 1906-1 7 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula 488 Comment
  SEINET11988253  Arctostaphylos crustacea Unknown 1959-1 321 San Mateo 3.5 mi from junction CA 5 on Kings Mt. Rd Comment
  JROH1930  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11988234  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4417 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 137 Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  HSC7758  Arctostaphylos imbricata L. S. Rose 1964-4-24 64022 San Mateo San Bruno Hills 335 Comment
  UC571190  Arctostaphylos imbricata H. L. Mason 1928-2-22 4164 San Mateo San Bruno Mountain Comment
  RSA502351  Arctostaphylos imbricata D. W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22deg. W of summit (as depicted on San Francisco South 7.5' USGS quadrangle) 371 Comment
  CAS-BOT-BC40166  Arctostaphylos montaraensis John H. Thomas 1974-5-9 17329 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  RSA633497  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27572 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633501  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27574 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44740  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CAS-BOT-BC44744  Arctostaphylos regismontana Mrs. E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain Comment
  POM367228  Arctostaphylos regismontana L. S. Rose 1938-2-23 38083 San Mateo Kings Mountain. 640 Comment
  RSA22394  Arctostaphylos regismontana L. S. Rose 1939-2-26 39015 San Mateo Kings Mountain. 670 Comment
  RSA636742  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24637 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120829  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 6 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 426 Comment
  UC1543114  Arctostaphylos regismontana Donald G. Nelson 1938-11-13 592 San Mateo on Skyline Blvd n summit of Kings Mountain 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
  HSC7756  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  JEPS48592  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 580 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  RSA44374  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  RSA636851  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley 1979-6-18 7313 San Mateo Jasper Ridge. Comment
Read comments
Sep 19 2011
  UC565410  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1464 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  CAS-BOT-BC46829  Arctostaphylos uva-ursi Peter H. Raven 1951-3-12 2743 San Mateo Summit ridge San Bruno Mts. Comment
  JEPS26637  Arctostaphylos uva-ursi J. Roof and D. L. Harmon 1961-4-7 San Mateo spur that lies directly n summit; San Bruno Mountain 365 Comment
  RSA0077993  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 421 San Mateo San Bruno Mountain, just E of summit. 396 Comment
  SEINET11987152  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. from about 200 yds E of summit parking lot of San Bruno Mt Comment
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11987154  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4054 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point, San Bruno Mountain 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
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  CAS-BOT-BC102182  Argyranthemum foeniculaceum Elizabeth McClintock 1988-6-7 s.n. San Mateo San Bruno Comment
  CAS-BOT-BC47698  Armeria maritima subsp. californica Cynthia Steele 1948-5-29 115 San Mateo Pescadero Beach Comment
  CAS-BOT-BC47700  Armeria maritima subsp. californica J. H. Thomas 1949-6-4 574 San Mateo 1.4 miles S. of road to Pescadero Comment
  POM204327  Armeria maritima subsp. californica I. L. Wiggins 1929-7-4 3801 San Mateo Pescadero Beach Comment
  CAS-BOT-BC82519  Arnica discoidea John H. Thomas 1961-6-20 9558 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 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
  UC1537053  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo along Salada Beach-Skyline Blvd. 60 Comment
  UC943016  Artemisia douglasiana Lewis S. Rose 1940-8-10 49155 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC93636  Artemisia pycnocephala Elizabeth McClintock; Paul Reeberg 1989-4-23 s.n. San Mateo San Bruno Mountains - Reservoir Hill, west-facing slope 121 Comment
  POM212012  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 mi. S of Pescadero. 8 Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  POM313191  Arundo donax S. Galen Smith, Malcom A. Nobs 1949-8-25 1574 San Mateo Marsh south of Rockaway Beach. Comment
  SACT000355  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
  UCD56052  Arundo donax Malcolm A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockway Beach. Comment
  CAS-BOT-BC400511  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  CAS-BOT-BC186765  Astragalus gambelianus H. A. Dutton 1900-3-25 s.n. San Mateo Woodside 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
  UC903405  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo High Road off Woodside Road hills back Redwood City; back of Redwood City Comment
  CAS-BOT-BC186768  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  JROH1988  Astragalus gambelianus John H. Thomas 1961-4-4 9044 E San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  UCD104824  Astragalus gambelianus Michael A. Vincent 1998-4-9 8203 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  CAS-BOT-BC194428  Astragalus nuttallii var. virgatus Otto M. Sokol 1953-5-9 80 -B San Mateo Pebble Beach Comment
  CAS-BOT-BC177972  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  RSA498283  Astragalus nuttallii var. virgatus E. A. Purer 1933-8-25 5514 San Mateo Skyline Drive. Comment
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  SEINET10775828  Astragalus pycnostachyus Robert V. Bradshaw 1921-9-5 Bradshaw 2234 San Mateo San Gregorio. Comment
  BLMAR756  Astragalus pycnostachyus var. pycnostachyus Clara Sander 2005-7-5 756 San Mateo San Gregorio, Coastal bluff 25 Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. Comment
  JROH1437  Athysanus pusillus John Rawlings 2007-4-1 1064 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine slope above and south of Big Inlet drainage, 176 Comment
  JROH4841  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC145998  Avena fatua Ned Cahill 1974-5-30 324 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. 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-BC344842  Baccharis douglasii Peter Rubtzoff 1976-10-5 8908 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  HSC5124  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. and La Honda Rd. 610 Comment
  JROH536  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH538  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  CAS-BOT-BC99536  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  RSA40138  Baccharis pilularis L. S. Rose 1948-11-25 48240 San Mateo San Mateo County, Kings Mtn. 549 Comment
  JROH550  Baccharis pilularis subsp. consanguinea Richard L. Garber 1971-7-13 62 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1442  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA482825  Barbarea orthoceras Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC16641  Barbarea orthoceras R. E. Frenkel 1964-4-2 417 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road. 347 Comment
  RSA788847  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  JROH3913  Bellardia trixago John H. Thomas 1969-5-16 15047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3914  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3917  Bellardia trixago John H. Thomas 1977-5-18 18613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3923  Bellardia trixago John Hunter Thomas 1985-5-2 23582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3924  Bellardia trixago John Hunter Thomas 1986-4-30 23986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3931  Bellardia trixago Toni Corelli 2004-4-22 272 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9 between trail c and trail 10 on both sides of trail 190 Comment
  CDA6266  Bellardia trixago T. C. Fuller 1967-6-13 15944 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  RSA162481  Bellardia trixago E. K. Balls 1963-5-22 12066 San Mateo 2.7 mi. S. from Half Moon Bay, along State Hwy. 1. 15 Comment
  CAS-BOT-BC75869  Berberis pinnata W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Bank of ravine north of Seal Cove. Comment
  POM149245  Berberis pinnata A. D. E. Elmer 1903-04 4820 San Mateo San Bruno Hills Comment
  UC1327250  Berberis pinnata John T. Doyen 1966-3-28 33 San Mateo near Radio Towers at top of San Bruno Mountains Radio Towers; San Bruno Mountains Comment
  CAS-BOT-BC102030  Bidens laevis Ned Cahill 1974-5-18 298 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC66298  Blechnum spicant L. R. Abrams 1912-4-1 5000 San Mateo Butano Canyon Comment
  CAS-BOT-BC100316  Blennosperma nanum var. robustum Walter Knight; Irja Knight 1965-4-25 1043 San Mateo Owl's Canyon Comment
  CAS-BOT-BC100319  Blennosperma nanum var. robustum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  RSA130356  Boisduvalia densiflora Roxana S. Ferris 1930-9-3 2044 San Mateo Santa Cruz Mountain Peninsula: Upper Mud Lake. Coal Mine Ridge Comment
  JEPS101807  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-8-9 12267 San Mateo Bean Hollow, on margin of pond between old highway and present Highway 1 alingment. 1 Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  RSA119849  Bowlesia incana Hester R. Davis 1920-4-6 s.n. San Mateo Near San Francisquite Creek. Comment
  JROH3883  Boykinia occidentalis H. J. Dengler 1969-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North bank of San Francisquito Creek, opposite the base of trail to S.F. Creek on N.E.J.R., just above "falls" in creek. Comment
  JROH4859  Brachypodium distachyon W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), turn right just before Quercus douglasii and weather station (Trail 16), 15 yards on right of path. 191 Comment
  CDA36478  Brachypodium sylvaticum Ellen Gartside 2011-9-1 s.n. San Mateo Woodside; base of slope just above Grandview Drive. Comment
  POM272569  Brassica nigra Lyman Benson 1939-6-24 9676 San Mateo Menlo Park. 30 Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  CAS-BOT-BC30268  Brassica nigra R. Bacigalupi 1946-7-6 2794 San Mateo Near junction of Belmont-Las Pulgas roads, close to Crystal Springs Lake. Comment
  JROH1459  Brassica rapa John H. Thomas 1967-4-20 12704 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4326828 Image available Brassica rapa Lyman Benson 1939-7-1 San Mateo San Francisco, San Francisco City limits, Skyline Boulevard. 30 Comment
  SEINET3292600 Image available Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola, in cultivated orchards, roadside Potola Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  SEINET4183129 Image available Briza minor David D. Keck 1932-4-18 San Mateo Burlingame Comment
  SJSU15963  Briza minor John Rawlings, Ken Hickman 2016-5-26 1840 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
  JROH5753  Briza minor M. Day 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  SJSU9943  Brodiaea terrestris subsp. terrestris J. R. Verbarg 1955-5-14 44 San Mateo Crystal Springs Hills Comment
  CAS-BOT-BC483170  Brodiaea terrestris subsp. terrestris Ned Cahill 1974-4-18 122 San Mateo Near the intersectoin of Canada and Edgewood Roads about 3 miles westward from Redwood City Comment
  CAS-BOT-BC144142  Bromus John Thomas Howell 1955-4-27 s.n. San Mateo 0.3 mile north of Dam, Crystal Springs Road, on west side. Comment
  CDA20476  Bromus carinatus R. Garcia 2004-5-4 PDR 1299033 San Mateo San Francisco Bay Area; 2091 Portola Rd, Woodside. 0 Comment
  JEPS113029  Bromus carinatus var. carinatus Dean W. Taylor 1988-3-30 9482 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  JROH4902  Bromus carinatus var. carinatus Toni Corelli 2009-5-11 356 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road C 112 Comment
  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
  CAS-BOT-BC156172  Bromus catharticus Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Above Randolph Avenue. 53 Comment
  CAS-BOT-BC156176  Bromus catharticus John H. Thomas 1969-4-24 14902 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  RSA120971  Bromus catharticus J. T. Howell 1956-5-23 31446 San Mateo Roadside, El Camino Real at Atherton Ave., Menlo Park. Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
Read comments
Feb 18 2015
  CAS-BOT-BC155721  Bromus diandrus Margaret Barry 1937-5-8 29 San Mateo Coal Mine Ridge. Comment
  CDA34508  Bromus diandrus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .177 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  SEINET3922418  Bromus diandrus Robert A. Norris 1984-3-21 4657 San Mateo Brushy W-facing slope of Blue Blossom Hill in the San Bruno Mts.; 0 Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. Comment
  CAS-BOT-BC155134  Bromus hordeaceus George Oberlander 1950-5-28 1000 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  CAS-BOT-BC155136  Bromus hordeaceus Ned Cahill 1974-4-30 222 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC155139  Bromus hordeaceus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JROH4915  Bromus hordeaceus Duncan M. Porter 1960-4-29 667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch Comment
  RSA790273  Bromus hordeaceus subsp. hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SEINET10520261  Bromus laevipes A. Arthur Heller 1907-5-23 Heller 8566 San Mateo Back of San Mateo on the Half Moon Bay road. 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
  JROH4945  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 B San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 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
  JROH4950  Bromus madritensis subsp. rubens W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right of Trail 9 -- going west (north side) Comment
  RSA135733  Bromus marginatus W. R. Dudley 1901-5-14 s.n. San Mateo between Colma and Lake Merced. Comment
  CAS-BOT-BC162229  Bromus maritimus John H. Thomas 1963-5-20 10151 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles northwest of Santa Cruz. Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  UCD59622  Bromus rubens P. Rodriguez-Rojo 1997-4-12 s.n. San Mateo Edgewood County Park. 200 Comment
  JROH4961  Bromus sterilis John Rawlings 2013-4-3 1159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D. 130 Comment
  JROH4962  Bromus sterilis John Rawlings 2013-4-9 1149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Verge of Rd L near Ranger Bath. 107 Comment
  JEPS26847  Bromus vulgaris Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7710 San Mateo 1/4 mi w of crossing with Skyline Boulevard (along Alpine Road); Alpine Road 685 Comment
  CHSC22764  Cakile edentula Robert A. Schlising; Glenn Keator 1962-2-3 2048 San Mateo Coast Ranges. Along area at Gazos Creek and Highway 1. Comment
  CAS-BOT-BC36871  Cakile edentula var. edentula W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Laguna Salada. Comment
  CAS-BOT-BC36959  Cakile maritima var. maritima Elsie Zeile 1946-7-1 s.n. San Mateo Montara. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36963  Cakile maritima var. maritima David D. Keck 1940-5-19 5045 San Mateo Half Moon Bay. Just north of town. Comment
  CAS-BOT-BC185142  Calamagrostis nutkaensis 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-BC185149  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  CAS-BOT-BC185031  Calamagrostis rubescens Lois Lampe 1939-7-8 s.n. San Mateo 6 miles from Woodside on Tunitas Creek Road. Comment
  SJSU9863  Calamagrostis rubescens S. H. Casey 1975-6-20 556 San Mateo Dean Trail, Huddert Park W of Woodside Comment
  CDA31267  Calendula arvensis J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  JROH1640  Callitriche marginata John H. Thomas 1973-4-20 16578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4595  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4604  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC492202  Calochortus albus George Oberlander 1950-5-6 975 San Mateo Among Redwood, Cahill Ridge Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  CAS-BOT-BC492209  Calochortus albus Elmer I. Applegate 1895-4-8 727 San Mateo Page Mill Creek, above Stanford University Comment
  JEPS127872  Calochortus luteus Adam C. Schneider 2013-5-17 159 San Mateo Crystal Springs Reservoir Comment
  JROH4635  Calochortus luteus John H. Thomas 1975-6-5 17941 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack on serpentine and non-serpentine soils Comment
  POM292441  Calochortus tolmiei Lyman Benson 1930-5-3 2107 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM161183  Calochortus tolmiei Rimo C. Bacigalupi 1922-5-15 s.n. San Mateo New La Honda Grade Comment
  SEINET12045035  Calochortus uniflorus D. D. Keck 1932-1 1496 San Mateo above Woodside on La Honda Rd. E slope of Santa Cruz Mts Comment
  SEINET12044555  Calochortus venustus L. S. Rose 1932-1 32327 San Mateo Redwood City Comment
  JROH556  Calycadenia multiglandulosa John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH558  Calycadenia multiglandulosa John H. Thomas 1958-11-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  CAS-BOT-BC224658  Calystegia purpurata subsp. purpurata Robert Robertson 1954-5-1 107 San Mateo 2 miles east of Pescadero 30 Comment
  JROH1839  Calystegia purpurata subsp. purpurata John H. Thomas 1968-4-19 14294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC436441  Calystegia subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd west of San Mateo 182 Comment
  SD38400  Calystegia subacaulis Janet Turner 1933-5-30 3723 San Mateo Between Skyline and Half Moon Bay. Comment
  CAS-BOT-BC224345  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer 1903-6-1 4826 San Mateo Crystal Springs Lake Comment
  UC168532  Camissonia strigulosa Katharine Brandegee June 1905 San Mateo Colma Comment
  UC306527  Camissoniopsis micrantha A. D. E. Elmer May 1903 4813 San Mateo San Pedro Comment
  SEINET10463019  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo LA HONDA GRADE Comment
  SEINET10463046  Campanula prenanthoides Leitholt LEITHOLT s.n. San Mateo Pascadero Comment
  SEINET10463364  Campanula prenanthoides Elvander 1970-7-5 ELVANDER 287 San Mateo 1 mile on Water Pant road from intersection with entrance to Butano State Park. Sandy loam, redwood forest. 152 Comment
  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-BC37659  Cardamine californica W. R. Dudley 1895-2-9 s.n. San Mateo Below Pescadero. Arroyo de las Friojoles. Comment
  CAS-BOT-BC37662  Cardamine californica W. R. Dudley 1903-5-9 s.n. San Mateo Santa Cruz Peninsula. Iverson's near Peters Creek. Comment
  CAS-BOT-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  CAS-BOT-BC37992  Cardamine oligosperma Margaret A. Barry 1937-5-15 107 San Mateo Coal Mine Ridge. Comment
  JROH1500  Cardamine oligosperma John Hunter Thomas 1985-4-10 23515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill gate Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  CAS-BOT-BC37983  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-28 1018 San Mateo San Bruno Mountain. Trillium Gulch. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CDA6871  Carduus pycnocephalus Wm. Davis 1962-4-24 San Mateo Gorman Hay Barn, Tanforan Race Track, San Bruno. 0 Comment
  CDA6893  Carduus tenuiflorus W. S. Ball 1946-4-19 San Mateo 5 miles below Half Moon Bay. 0 Comment
  UCD166155  Carex Jack Major; M. Forde and S. Bamberg 1962-4-3 739 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC17853  Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  CAS-BOT-BC17852  Carex amplifolia George Oberlander 1950-5-21 958 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. 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
  SEINET10585498  Carex aquatilis Adolph D. E. Elmer Elmer 4428 San Mateo Crystal Springs Lake. Comment
  JROH4313  Carex barbarae John H. Thomas 1974-5-3 17240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4314  Carex barbarae John H. Thomas 1974-5-19 17384 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4323  Carex bolanderi John Rawlings 2010-5-13 1056 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 feet west of Leonard's Bridge at time of collection. Bridge subsequently extended covering this site. 106 Comment
  JROH4324  Carex bolanderi John Rawlings 2010-5-19 1050 A San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  UCD166147  Carex brevicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 732 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC34075  Carex brevicaulis Alice Eastwood; John Thomas Howell 1938-6-26 6051 San Mateo Montara Mountain. Above Point San Pedro. Comment
  SBBG39550  Carex brevicaulis J. T. Howell 1965-3-29 41035 San Mateo W end of summit ridge of San Bruno Mtn 396 Comment
  CAS-BOT-BC18937  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA91590  Carex densa J. T. Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  SEINET7556731 Image available Carex densa Alice Eastwood, John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  UCD140265  Carex densa John Thomas Howell 1938-5-1 13785 San Mateo near South San Francisco. Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  JROH4343  Carex globosa John Hunter Thomas 1992-4-23 25152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods. Comment
  UC2048919  Carex globosa Neal Kramer 2016-4-3 2163 San Mateo Pedro Point Headlands Comment
  CAS-BOT-BC21810  Carex harfordii John Thomas Howell 1938-5-1 13782 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC21814  Carex harfordii Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5251 San Mateo Tunitas. Comment
  JROH5599  Carex nudata John Rawlings 2013-4-30 1180 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old horse trail crossing of San Francisquito Creek near Boething Nursery site. (Leave Trail 2 extension at metal post SE of last redwoods). 66 Comment
  CAS-BOT-BC119443  Carex nudata Charles Piper Smith 1908-4-13 1399 San Mateo Stanford Univ. San Francisquito Creek. Comment
  UCR279900  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  RSA788837  Carex obnupta Peter Rubtzoff 1978-3-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS23935  Carex serratodens Le Roy Abrams 1902-5-4 8019 San Mateo Woodside Comment
  JROH4358  Carex serratodens John H. Thomas 1968-5-3 14443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM79433  Carex serratodens C. F. Baker 1902-5-10 811 San Mateo Crystal Springs Lake. Comment
  UC2013125  Carex serratodens Neal Kramer 2012-3-3 2031 San Mateo Stulsaft Park Redwood City. Comment
  SEINET3100624  Carex serratodens Neal Kramer 2012-3-3 2031 a San Mateo Stulsart Park, Redwood City Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. 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
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SBBG29942  Carex subbracteata J. T. Howell 1938-5-1 13783 San Mateo near South San Francisco 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
  CAS-BOT-BC210009  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 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-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  UC826092  Carex tumulicola Wilhelm N. Suksdorf 1913-6-30 377 San Mateo Crystal Springs Lake Comment
  RSA789961  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  CAS-BOT-BC230110  Carpobrotus chilensis Elsie Zeile 1909-8-23 s.n. San Mateo Granada Comment
  UC84186  Carthamus lanatus T. S. Brandegee 1891-7-1 San Mateo South San Francisco Comment
  CAS-BOT-BC249183  Castilleja affinis D. E. Breedlove 1974-5-13 36215 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  POM283662  Castilleja affinis Lyman Benson 1930-5-3 2094 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate Comment
  UCD18551  Castilleja affinis Roman Gankin 1950-7-9 23 San Mateo On a sea cliff outside city of Pescadero, overlooking the ocean. 6 Comment
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  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
  JROH3932  Castilleja affinis subsp. affinis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3943  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3944  Castilleja affinis subsp. affinis John H. Thomas 1976-5-26 18156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103887  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7880 San Mateo Hill just S of Rockaway Beach. Comment
  UCR139351  Castilleja ambigua David D. Keck 1932-4-29 1453 San Mateo San Francisco Bay Region, Burlingame-San Mateo city limits, Bayshore Highway 3 Comment
  UC1012400  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame; Routh 101 0 Comment
  UC1537444  Castilleja ambigua subsp. ambigua Gordon H. True Jr. 1936-6-7 488 San Mateo 2 mi s Pescadero 15 Comment
  UC306603  Castilleja ambigua subsp. ambigua A. D. E. Elmer May 1903 4800 San Mateo San Pedro Comment
  UC406881  Castilleja ambigua subsp. ambigua David D. Keck 1927-6-10 394 San Mateo Montara Point; Radio Station 0 Comment
  JROH3958  Castilleja attenuata John H. Thomas 1974-4-19 17164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD234177  Castilleja densiflora Claude Bonang 1958-4-4 13 San Mateo Jasper Ridge. Meadow. 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
  SBBG54571  Castilleja densiflora subsp. densiflora F. W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo 4 mi W of Burlingame 152 Comment
  JEPS20314  Castilleja densiflora subsp. densiflora Lewis S. Rose 1956-5-7 56064 San Mateo w of San Mateo (Skyline Blvd) 182 Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UCD122396  Castilleja exserta June McCaskill 1954-5-8 299 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. Comment
  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
  JROH3995  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-29 9188 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH4009  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC185345  Castilleja rubicundula subsp. lithospermoides Katharine Brandegee May 1905 San Mateo San Mateo Comment
  JEPS103884  Castilleja subinclusa T. I. Chuang and F. M. Chuang 1991-7-1 7850 San Mateo 0.8 miles N of San Gregorio Beach. Comment
  JEPS19717  Castilleja wightii Peter H. Raven 1957-6-24 10966 San Mateo just s Linda Mar Comment
  JEPS29412  Castilleja wightii L. R. Heckard 1961-7-16 1259 San Mateo near San Bruno Mt. summit (ne of transmitting station KQED); San Bruno Mt. 335 Comment
  JEPS85726  Castilleja wightii L. R. Heckard 1964-6-24 1393 San Mateo San Bruno Mt.; slope below (n of) transmitting stations 304 Comment
  RSA428365B  Castilleja wightii Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC885266  Castilleja wightii Alice Eastwood 1915-6-13 4710 San Mateo Granada Comment
  JEPS60424  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6664 San Mateo Along Skyline Boulevard (Hwy 35) 3 mi N of its jct with road to La Honda (Rte. 84) Comment
  POM283640  Castilleja wightii Lyman Benson 1930-4-7 2046 San Mateo Moss Beach. Pacific Ocean Bluffs. 15 Comment
  RSA0005986  Castilleja wightii A. D. E. Elmer 1903-07 4761 San Mateo San Pedro. Comment
  RSA517381  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1330 San Mateo Along old country road over San Pedro and Montara mountains; northern flank of San Pedro Mt. 152 Comment
  CAS-BOT-BC40400  Caulanthus lasiophyllus L. R. Abrams 1920-6-1 7503 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  JROH1526  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1529  Caulanthus lasiophyllus John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC40397  Caulanthus lasiophyllus Peter H. Raven 1950-4-16 1802 San Mateo San Bruno Mountain. Summit Ridge. 243 Comment
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC51607  Ceanothus oliganthus var. sorediatus Margaret A. Barry 1937-5-8 82 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC52278  Ceanothus thyrsiflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Powerline Ridge Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  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-BC52312  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  UC567045  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo three mi s Bellvale; Santa Cruz Quad. 640 Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  SEINET12210806  Ceanothus thyrsiflorus W. Knight, Knight, I. 1982-1 4662 San Mateo Tilden Botanic Garden, Berkeley Comment
  UCD18549  Ceanothus thyrsiflorus Roman Gankin 1950-7-9 21 San Mateo 1 mile west of city of Pescadero toward State Hwy 1. Along the roadside, swamp nearby, near ocean. 15 Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  JROH589  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  CAS-BOT-BC274589  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont-Crystal Springs Rd Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  JROH593  Centaurea calcitrapa John Hunter Thomas 1988-10-17 24602 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH602  Centaurea melitensis John Hunter Thomas 1989-5-9 24723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM54379  Centaurea melitensis A. D. E. Elmer 1903-06 4281 San Mateo Crystal Springs Lake. Comment
  HSC23937  Centaurea solstitialis Mary Katherine Wicksten 1971-7-20 178 San Mateo Huddart Park, by Redwood Shelter. Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85194  Centaurium muehlenbergii Roy E. Buck and Randall A. Morgan 1984-6-17 508 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd, Canada Rd, and Interstate 280, ca 100 m w of I-280, s of Edgewood Park trail underpass, strip along and near watercourse); San Francisco Watershed Reserve 158 Comment
  UCR123143  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6795 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  JEPS38137  Centromadia parryi subsp. parryi L. M. Newlon 1921-1-1 239 San Mateo seashore from Salada to Mussel Beach Comment
  HSC5817  Centromadia pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  UC894404  Centromadia pungens subsp. pungens Lewis S. Rose 1938-8-18 38231 San Mateo San Mateo 6 Comment
  UC702541  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo along the Bayshore Boulevard 3 Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  JROH1689  Cerastium glomeratum John H. Thomas 1961-4-8 9078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388395  Cerastium glomeratum Walter Knight; Irja Knight 1965-3-21 948 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  CAS-BOT-BC135470  Cercocarpus betuloides var. betuloides W. R. Dudley 1902-11-2 s.n. San Mateo Bank os San Francisquito Cr. half mile above Adelanta Vill bridge. Comment
  CAS-BOT-BC135473  Cercocarpus betuloides var. betuloides James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's Ranch Comment
  JROH3621  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1818  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187281  Chenopodium californicum John H. Thomas 1965-4-29 10604 San Mateo San Bruno Mountain in northern part of county. 305 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
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. Comment
  JROH1828  Chenopodium vulvaria Toni Corelli 2005-8-14 304 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H at Bear Creek 82 Comment
  UCSB17648  Chlorogalum pomeridianum Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  RSA18447  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1927-6-29 560 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  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
  UC125349  Chorizanthe robusta Katharine Brandegee June 1905 San Mateo Colma Comment
  RSA159419  Chrysanthemum coronarium John H. Thomas 1961-5-7 9245 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC36450  Chrysolepis chrysophylla W. R. Dudley 1900-3-16 s.n. San Mateo By road to Kings Mountain Comment
  CAS-BOT-BC36454  Chrysolepis chrysophylla William R. Dudley 1893-5-27 s.n. San Mateo Woodside Road Comment
  CAS-BOT-BC389694  Chrysolepis chrysophylla Mary K. Wicksten 1970-8-14 63 San Mateo Archery Trail, Huddart Prk. Comment
  JEPS78655  Chrysolepis chrysophylla Edward Lee 1936-1-26 1727 San Mateo 4.5 mi out Woodside (Kings Mountain Road, e side of Cahill Ridge); Cahill Ridge Comment
  JROH2583  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2584  Cicendia quadrangularis John H. Thomas 1966-4-6 11554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285236  Cichorium intybus J. H. Thomas 1954-5-28 4229 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  RSA187481  Cichorium intybus John H. Thomas 1954-5-28 4229 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  CAS-BOT-BC277885  Cirsium brevistylum George Oberlander 1949-7-24 283 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  UC306684  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  UC91574  Cirsium fontinale var. fontinale Alice Eastwood 1897-6-1 San Mateo Crystal Springs Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  SEINET14157453  Cirsium fontinale var. fontinale Unknown San Mateo Comment
  UC614959  Cirsium occidentale var. venustum Beryl O. Schreiber 1932-5-29 312 San Mateo Crystal Springs Comment
  CAS-BOT-BC280133  Cirsium occidentale var. venustum George Oberlander 1949-6-25 251 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  RSA101025  Cirsium occidentale var. venustum G. Oberlander 1949-6-25 251 San Mateo E of Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC280524  Cirsium quercetorum Alice Eastwood 1912-6-10 333 San Mateo Crystal Springs Comment
  JEPS30887  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo about 4.3 mi due e of Belmont (near Crystal Springs Reservoir); , Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC280526  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6054 San Mateo 2 miles south of San Gregorio Comment
  CAS-BOT-BC285860  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285871  Cirsium vulgare Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  UCD130823  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road on Highway 5, Crystal Spring Lake. 30 Comment
  JROH5820  Clarkia purpurea subsp. quadrivulnera John Rawlings 2016-5-10 1782 San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern edge of the Dennis Martin Site 77 Comment
  POM271755  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1931-4-26 2758 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  CAS-BOT-BC164567  Clarkia purpurea subsp. viminea Cherie Wetzel 1969-6-20 879 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  POM271758B  Clarkia purpurea subsp. viminea Lyman Benson 1930-5-12 2121 San Mateo Lake Searsville, Stanford University; Santa Cruz mountain range, San Francisco Bay drainage area. 152 Comment
  CAS-BOT-BC165123  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 miles south of San Gregorio on old coast highway Comment
  CAS-BOT-BC165133  Clarkia rubicunda R. W. Thorp 1963-7-11 63 -60 San Mateo Rockaway Beach, Pacifica Comment
  CAS-BOT-BC165145  Clarkia rubicunda Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC165150  Clarkia rubicunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  JEPS17914  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo just s Pedro Point (high above the ocean, w end of mountain); Montara Mtn. Comment
  UC1279936  Clarkia rubicunda Peter H. Raven 1957-7-4 11045 San Mateo 1.7 mi n of junction to Portola State Park (along State Highway 5 (Skyline Boulevard)) Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  UCD104833  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 miles from San Gregorio on road to La Honda, near San Gregorio Creek. Comment
  RSA23202  Clarkia rubicunda subsp. blasdalei I. L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile north of the Light House. Comment
  RSA128518  Clarkia rubicunda subsp. blasdalei L. R. Abrams 1907-8-25 s.n. San Mateo Santa Cruz Mountain Peninsula: Between Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165605  Clarkia unguiculata Kent E. Holsinger 1979-5-16 10 b San Mateo Jasper Ridge Biological Preserve; 5 mi. SW of Stanford Univ. campus, on south facing slope of Searsville Lake 109 Comment
  JROH3039  Clarkia unguiculata John Rawlings, Ann Lambrecht 2010-6-23 0932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 through small meadow about 700 yards east of the Trail 3 intersection. 81 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC439590  Claytonia parviflora subsp. parviflora Margaret A. Barry 1937-5-15 98 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC439987  Claytonia perfoliata subsp. mexicana Fred Hemphill 1973-4-22 698 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC443656  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-4-30 1962 San Mateo Montara 15 Comment
  JEPS121443  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 2 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  JROH3345  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-3-13 12410 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3350  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1981-4-5 20288 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH3406  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3410  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3420  Clematis lasiantha John Hunter Thomas 1988-4-7 24375 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM151213  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  UC853910  Clematis lasiantha M. N. Paulson 1915-4-2 San Mateo Santa Cruz Mts. Peninsula, Jasper Ridge Comment
  CAS-BOT-BC92558  Clematis ligusticifolia Josephine D. Randall 1907-6-6 306 San Mateo Santa Cruz Peninsula. Los Trancos Road near Stanford University. Comment
  JROH2881  Clinopodium douglasii John Hunter Thomas 1986-6-7 24087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  RSA18200  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 7.5 miles from Pescadero on Alpine Creek Road. Comment
  SEINET12046246  Clintonia andrewsiana W. R. Dudley 1893-1 s.n. San Mateo Santa Cruz Penninsula, between Woodside and Summit Springs Comment
  RSA130676  Collinsia heterophylla Josephine Randall 1907-6-8 384 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  CAS-BOT-BC240920  Collinsia multicolor Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. On north side of mountain 1/2 mi. east of Brisbane power lines Comment
  CAS-BOT-BC240923  Collinsia multicolor A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills Comment
  CAS-BOT-BC240933  Collinsia multicolor Walter Knight; Irja Knight 1965-4-4 1014 San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  POM15102  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  UC138812  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC26582  Collinsia multicolor Alice Eastwood Apr 1896 San Mateo On the road to Crystal Springs. Comment
  JROH4020  Collinsia sparsiflora var. collina Kent E. Holsinger 1981-4-15 342 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the junction of the road to the green shack and the trail up from San Francisquito Creek 160 Comment
  UC138687  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake Comment
  RSA10271  Collomia heterophylla H. A. Barker 1927-5-6 696 San Mateo Summit of Kings Mts. Comment
  JROH1853  Convolvulus arvensis John Hunter Thomas 1986-6-3 24078 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing bowl Comment
  JROH1854  Convolvulus arvensis John Hunter Thomas 1987-5-19 24298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1857  Convolvulus arvensis John Hunter Thomas 1989-5-9 24701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1848  Convolvulus arvensis John Hunter Thomas 1978-5-12 19200 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344849  Conyza Peter Rubtzoff 1987-11-27 9887 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon parkway west of Radio Road junction. Western upper edge of East Fork Colusa Creek Canyon. Comment
  RSA120503  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-24 533 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  JROH4763  Corallorhiza striata J. I. McMurphy 1906-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4764  Corallorhiza striata John Hunter Thomas 1985-4-22 23540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS20324  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1941-8-9 41362 San Mateo Woodside 548 Comment
  JEPS19701  Cordylanthus rigidus subsp. rigidus Peter H. Raven 1957-9-1 11298 San Mateo Kings Mountain road 2 mi e Skyline Boulevard ((State Highway %)) Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  CAS-BOT-BC101480  Corethrogyne filaginifolia J. I. McMurphy 1906-5-8 s.n. San Mateo Between Crystal Springs & Belmont Grade Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  JEPS30902  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo about 4.3 mi due e of Belmont; Crystal Springs Reservoir 91 Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 Comment
  RSA187486  Cornus californica John H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. Alt. about 350 feet. Comment
  SEINET12136511  Cornus californica R. C. Croker 1929-1 69 San Mateo Searsville Lake Comment
  JROH1871  Cornus sericea subsp. sericea John Hunter Thomas 1981-7-24 20731 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1872  Cornus sericea subsp. sericea John Hunter Thomas 1982-8-13 21140 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC180276  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-5-15 1110 San Mateo Upper Bitter Cherry Ravine. San Bruno Mountain Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. San Bruno Mountain Comment
  CAS-BOT-BC180281  Corylus cornuta subsp. californica Josephine D. Randall 1907-4-27 112 San Mateo Colma King's Mt. Road above Woodside. Santa Cruz Peninsula Comment
  CAS-BOT-BC287202  Cosmos bipinnatus Prof. W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mt Peninsula.l Opposite Halfmoon Bay Comment
  UC1755440  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC453505  Cotoneaster lacteus Philip Wheeler; Elizabeth McClintock 1965-6-16 s.n. San Mateo Colma Canyon - creek area; San Bruno Mountains Comment
  JROH3633  Cotoneaster pannosus D. E. Breedlove 1971-5-31 19365 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3634  Cotoneaster pannosus John H. Thomas 1972-8-18 16154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3641  Cotoneaster pannosus John Hunter Thomas 1982-10-16 21181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3642  Cotoneaster pannosus John Hunter Thomas 1983-4-28 21777 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack Comment
  CAS-BOT-BC291466  Cotula coronopifolia John H. Thomas 1963-5-8 10063 San Mateo San Bruno Mountain 396 Comment
  RSA18353  Cotula coronopifolia C. B. Wolf 1927-1-29 464 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UCR142747  Cotula coronopifolia David D. Keck 1932-3-24 1403 San Mateo San Francisco Bay Region, Redwood City, border of San Francisco Bay 3 Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  CDA19795  Cotula mexicana D. Pendleton 2002-3-21 PDR 065823 San Mateo San Francisco Bay Area; Sharp Park Golf Course in Pacifica. 0 Comment
  CAS-BOT-BC427830  Crassula connata John H. Thomas 1958-2-15 6991 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  UCSC007735  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JEPS50008  Crassula connata var. erectoides W. L. Jepson 1921-4-3 9106 San Mateo Colma Comment
  JROH667  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1967-6-1 12962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH4997  Crypsis schoenoides Toni Corelli 2006-9-20 331 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 In the dry Corte Madera streambed. 109 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
  JROH6203  Cryptantha clevelandii var. florosa John Rawlings 2014-5-6 1232 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  SJSU7524  Cryptantha flaccida L. S. Rose 1966-5-2 66032 San Mateo Emerald L, W of Redwood City 91 Comment
  JROH1377  Cryptantha microstachys John Hunter Thomas 1978-4-22 19102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA44329  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek 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
  UC1303040  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo 0.5 mi below Skyline Blvd. (on Half Moon Bay Road toward Crystal Springs Reservoir); Half Moon Bay Road Comment
  RSA141091  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  JROH5005  Cynodon dactylon John Hunter Thomas 1987-5-26 24313 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34568  Cynoglossum grande M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 871 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH5011  Cynosurus echinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek -- above low-flow causeway on left in rocks. 81 Comment
  JROH5012  Cynosurus echinatus John Hunter Thomas 1990-5-29 24862 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  CAS-BOT-BC114452  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  CAS-BOT-BC114459  Cyperus eragrostis Ira L. Wiggins 1980-8-29 22264 San Mateo Bed of San Francisquite Creek, ca 200 m upstream from Pope Street bridge, Menlo Park Comment
  HSC7212  Cyperus eragrostis L. S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  SBBG32286  Cyperus eragrostis L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Drive and California Drive 9 Comment
  CAS-BOT-BC136519  Cypripedium montanum Wm. Cranston 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH21  Cystopteris fragilis Lawrence J. Winship 1974-11-16 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC198211  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo Base of Quarry, San Bruno Mountains Comment
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  JROH5022  Dactylis glomerata John Hunter Thomas 1982-6-7 21031 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC82084  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  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
  JROH5041  Danthonia californica John Hunter Thomas 1981-5-19 20611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18328  Danthonia californica var. americana C. B. Wolf 1929-5-10 3707 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  RSA580827  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  HSC23959  Daucus pusillus Mary Katherine Wicksten 1971-6-24 120 San Mateo Huddart Park, side of park entrance Comment
  UC419710  Deinandra corymbosa Mrs. H. P. Bracelin 1930-10-26 131 San Mateo between Half Moon Bay and Santa Cruz (s of Pescadero, Ocran Road) Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  UC406882  Deinandra corymbosa David D. Keck 1927-6-10 396 San Mateo Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299195  Deinandra corymbosa subsp. corymbosa Hazelle A. Thomas 1956-6-24 s.n. San Mateo Arroyo de la Frioles along the coast Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  CAS-BOT-BC9218  Delphinium californicum M. K. Curran 1884-1-1 s.n. San Mateo at Colma near San Francisco Comment
  CAS-BOT-BC9219  Delphinium californicum Margaret A. Barry 1937-6-24 187 San Mateo North slope near Los Trancos Creek on Coal Mine Ridge Comment
  CAS-BOT-BC9220  Delphinium californicum W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, above Judge Allen's, Santa Cruz Mountains Comment
  JROH3440  Delphinium californicum subsp. californicum John Hunter Thomas 1989-5-11 24730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near and below dam Comment
  CAS-BOT-BC9246  Delphinium decorum Henry Nicholas Bolander s.n. San Mateo San Bruno Comment
  CAS-BOT-BC10288  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  JEPS6236  Delphinium hesperium subsp. hesperium J. Burtt Davy 1893-6-17 805 San Mateo Belmont Comment
  POM150556  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo Kings Mountain. Comment
  JROH3455  Delphinium patens subsp. patens John H. Thomas 1977-4-8 18523 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  JROH3466  Delphinium variegatum subsp. variegatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15262  Dendromecon rigida Carl B. Wolf 1927-2-26 226 San Mateo On the La Honda grade Comment
  CAS-BOT-BC192596  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1932-5-26 s.n. San Mateo Hillside Drive, Burlingame Comment
  JEPS71181  Deschampsia cespitosa subsp. holciformis unknown 1919-7-22 209 San Mateo Laguna de los Frijoles Comment
  CAS-BOT-BC192594  Deschampsia cespitosa subsp. holciformis Harold E. Stark 1959-6-4 s.n. San Mateo S. F. Watershed and Wildlife Refuge 1/2 mi. w. San Bruno, N. end of Lake San Andreas Comment
  CAS-BOT-BC192634  Deschampsia danthonioides H. A. Dutton 1900-4-25 s.n. San Mateo Woodside Comment
  JROH5056  Deschampsia danthonioides John Hunter Thomas 1991-5-7 25036 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201907  Deschampsia elongata John H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  JROH5065  Deschampsia elongata John Hunter Thomas 1980-11-27 20193 A San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  POM148896  Dicentra formosa subsp. formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  UCSB18428  Dichelostemma capitatum subsp. capitatum Muirhead, M. 1964-4-17 San Mateo Crocker instate; Hillsborough, California 83 Comment
  JROH4663  Dichelostemma congestum John H. Thomas 1976-5-26 18151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4664  Dichelostemma congestum John Hunter Thomas 1977-6-16 18777 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5078  Digitaria sanguinalis John H. Thomas 1974-10-29 17648 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC150445  Diplacus aurantiacus Saichi Kawahara 1968-7-29 465 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC150450  Diplacus aurantiacus Elmer I. Applegate 1895-3-9 410 San Mateo Woodside road, near Stanford University Comment
  SBBG40470  Diplacus aurantiacus W. J. Dress 1951-5-12 San Mateo St Hwy 1, just S of Pigeon Point Comment
  SD38168  Diplacus aurantiacus Janet Turner 1933-5-30 2123 San Mateo Near Spring Valley Lake Comment
  CDA6696  Dipsacus sativus T. C. Fuller 1960-4-2 4066 San Mateo Crystal Springs Reservoir, road to Half Moon Bay. 0 Comment
  JROH4212  Dirca occidentalis John Hunter Thomas 1981-4-5 20282 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
  RSA3067  Dirca occidentalis Carl B. Wolf 1931-8-20 2324 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
Read comments
Jul 18 2011
  POM277214  Disporum hookeri var. hookeri Lyman Benson 1931-2-28 2614 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 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
  UCD64382  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1889 San Mateo Near San Mateo. Borders of San Francisco Bay. Comment
  JEPS9518  Dodecatheon clevelandii subsp. patulum W. L. Jepson 1922-3-19 9556 San Mateo back Hillsboro (Buriburi Ridge); Buriburi Ridge Comment
  JROH3381  Dodecatheon hendersonii Le Roy Abrams 1902-4-5 2311 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3382  Dodecatheon hendersonii John H. Thomas 1958-2-15 6987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15250  Dodecatheon hendersonii Carl B. Wolf 1927-2-19 211 San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  JROH1519  Draba verna John Hunter Thomas 1991-4-9 24977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC159532  Drymocallis glandulosa var. glandulosa Margaret A. Barry 1937-5-15 111 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC159536  Drymocallis glandulosa var. glandulosa W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach at Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC159534  Drymocallis glandulosa var. glandulosa W. R. Dudley 1900-3-17 s.n. San Mateo Grade up Montara Mts. - Santa Cruz Peninsula Comment
  CAS-BOT-BC159539  Drymocallis glandulosa var. glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  JROH3734  Drymocallis glandulosa var. wrangelliana John H. Thomas 1967-6-1 12973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3741  Drymocallis glandulosa var. wrangelliana John Rawlings, Toni Corelli 2013-5-7 1173 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the path to old quarry off of Trail 12. 109 Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  JROH33  Dryopteris arguta John H. Thomas 1976-11-5 18433 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH35  Dryopteris arguta John Hunter Thomas 1980-6-5 20000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC67889  Dryopteris arguta W. R. Dudley 1897-1-11 s.n. San Mateo Santa Cruz Peninsula - Lower part of Butano Creek Comment
  UCSC008147  Dudleya Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC410869  Dudleya caespitosa Reid Moran 1951-7-3 3499 San Mateo Devils Slide, 2 miles north of Montara Comment
  JROH5085  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA20116  Ehrharta erecta K. Melo 2003-4-21 PDR 205211 San Mateo San Francisco Bay Area; Urban yard in Redwood City. 0 Comment
  CAS-BOT-BC113592  Eleocharis acicularis M. E. Lang 1923-5-1 s.n. San Mateo Mud Lakes Comment
  CAS-BOT-BC113594  Eleocharis acicularis W. R. Dudley 1908-6-26 s.n. San Mateo Pond W of Scofield Pond, Coal Mine Ridge, Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC112953  Eleocharis macrostachya W. R. Dudley 1908-6-19 s.n. San Mateo By pond S of Road from Tanforan to Jersey Farm Dairy. Comment
  SEINET3910868  Eleocharis montevidensis Lewis S. Rose 1950-5-20 50146 San Mateo Emerald Lake region hills w. of Redwood City.; 0 244 Comment
  JEPS100765  Elymus californicus Dean W. Taylor 2000-6-12 17464 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  RSA580523  Elymus glaucus H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade Comment
  UCD37959  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  CAS-BOT-BC203679  Elymus glaucus subsp. glaucus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  CAS-BOT-BC203687  Elymus glaucus subsp. glaucus George Oberlander 1950-5-28 990 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5106  Elymus glaucus subsp. glaucus John H. Thomas 1975-5-26 17919 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5109  Elymus glaucus subsp. glaucus John Hunter Thomas 1981-5-14 20580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5110  Elymus glaucus subsp. glaucus John Hunter Thomas 1988-5-16 24467 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  LA14855  Elymus multisetus David D. Keck; 1932-5-6 1469 San Mateo Belmont Comment
  CAS-BOT-BC183619  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 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
  UCD164330  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo 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. Comment
  RSA184928  Epilobium brachycarpum L. S. Rose 1966-8-6 66077 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  CAS-BOT-BC166142  Epilobium canum subsp. canum Walter Knight; Irja Knight 1965-5-15 1112 San Mateo Pig Ranch Ravine. Up about half way on south facing slope 213 Comment
  JROH3048  Epilobium ciliatum subsp. ciliatum John H. Thomas 1970-7-5 15659 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3057  Epilobium ciliatum subsp. ciliatum Ann Lambrecht 2006-8-14 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; spillway of dam, western half, top tier Comment
  SEINET12191216  Epilobium ciliatum subsp. ciliatum Unknown 1932-1 9174 A San Mateo Los Tramcos Woods Comment
  UCR121575  Epilobium ciliatum subsp. watsonii George K. Helmkamp, E. A. Helmkamp 1999-6-28 5007 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  JROH5736  Epilobium minutum John Rawlings 2015-4-5 1656 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC166922  Equisetum arvense Peter Rubtzoff 1976-3-14 8444 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JROH63  Equisetum arvense John Hunter Thomas 1990-5-8 24856 San Mateo Jasper Ridge Biological Preserve, Stanford University 87 Comment
  RSA30891  Equisetum hyemale var. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero near mouth of canon. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC57608  Equisetum telmateia John Hunter Thomas 1954-4-3 3816 San Mateo La Honda Creek, about 1 mile north of La Honda 152 Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  JROH65  Equisetum telmateia subsp. braunii John H. Thomas 1967-4-28 12730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  POM87718  Equisetum telmateia var. braunii L. R. Abrams 1902-3-16 2282 San Mateo Kings Mountain Comment
  SJSU15447  Eragrostis curvula John Rawlings 2009-5-1 1048 A San Mateo This ornamental grass appeared along a short stretch of San Hill Rd. at the entrance to the Horse Park at Woodside. 119 Comment
Read comments
Feb 18 2015
  CAS-BOT-BC284050  Eragrostis pectinacea var. pectinacea Ira L. Wiggins 1973-6-24 22020 San Mateo Bed of San Francisquito Creek, 50-60 m upstream from Pope Street bridge, boundary between San Mateo and Santa Clara counties Comment
  JROH5140  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CAS-BOT-BC299890  Erechtites glomeratus John H. Thomas 1967-5-2 12805 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  CAS-BOT-BC299893  Erechtites glomeratus J. H. Thomas 1955-12-6 5514 San Mateo Pilarcitos Lake Dam Comment
  CAS-BOT-BC291241  Erechtites minimus George Oberlander 1950-7-15 1084 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  CDA4539  Erechtites minimus P. Arnaud 1958-7-13 839 -58 San Mateo San Mateo County Memorial Park. 0 Comment
  RSA124757  Eremocarpus setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  POM359360  Ericameria ericoides var. ericoides D. D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  JROH649  Erigeron canadensis John H. Thomas 1976-10-16 18423 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC300612  Erigeron foliosus var. franciscensis Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  RSA136093  Erigeron foliosus var. franciscensis W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mtn Peninsula. 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
  JROH695  Erigeron sumatrensis Toni Corelli 2011-8-30 371 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  CAS-BOT-BC216128  Eriodictyon californicum Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon, San Bruno Mountain Comment
  CAS-BOT-BC216247  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  JROH2717  Eriodictyon californicum John H. Thomas 1959-4-5 7667 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the western end of ridge Comment
  JROH2727  Eriodictyon californicum Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  POM222784  Eriodictyon californicum S. S. Berry 1909-4-23 s.n. San Mateo Road near Los Francos Creek 61 Comment
  SBBG29988  Eriodictyon californicum H. A. Barker, M. Dearing 1926-5-1 590 San Mateo King's Mtn Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  UCSB16624  Eriodictyon californicum Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET12271949  Eriodictyon californicum Unknown 1932-1 9151 San Mateo Comment
  CAS-BOT-BC250544  Eriogonum gracile John H. Thomas 1969-10-19 15478 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. 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
  CAS-BOT-BC250542  Eriogonum gracile W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Whipple Road near Crystal Springs Lake 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
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  CAS-BOT-BC264778  Eriogonum luteolum Lewis S. Rose 1937-9-21 37661 San Mateo Emerald Lake, west of Redwood City 182 Comment
  CAS-BOT-BC266074  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  RSA169306  Eriogonum luteolum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City 244 Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  SEINET11938085  Eriogonum luteolum var. caninum E. A. Purer 1933-1 5510 San Mateo Along Skyline Drive Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  CAS-BOT-BC269008  Eriogonum nudum var. auriculatum Ned Cahill 1974-10-8 384 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  SJSU15945  Eriogonum nudum var. nudum John Rawlings, Ken Hickman 2016-5-26 1822 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SD5712  Eriophyllum Ulysses S. Grant IV 1925-6-5 San Mateo Burlingame Comment
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Jul 10 2010
  POM288449  Eriophyllum confertiflorum Lyman Benson 1937-6-24 8389 San Mateo Caol Mine Ridge, Stanford University, Santa Cruz Mt. Range, S. F. Bay Watershed 366 Comment
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Oct 24 2014
  JROH700  Eriophyllum confertiflorum var. confertiflorum Raymond R. White 1974-6-3 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203569  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose; 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC301257  Eriophyllum lanatum var. arachnoideum D. E. Breedlove 1974-5-13 36217 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  RSA18518  Eriophyllum lanatum var. arachnoideum C. B. Wolf 1927-7-14 601 San Mateo Summit of Kings Mountain Rd. Comment
  JEPS85164  Eriophyllum latilobum Roy E. Buck 1987-5-2 565 San Mateo along Crystal Springs Rd ca 300 m n Woodridge Rd. jct. (1.5 air km nne of confluence of San Mateo and Polhemus Creeks, ne-facing slope along rd); Hillsborough, canyon of San Mateo Creek 33 Comment
  CAS-BOT-BC301976  Eriophyllum staechadifolium Saichi Kawahara 1968-7-29 461 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  SEINET3146689  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 mi. S of San Francisco Co. line 61 Comment
  UC135308  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point, along coast and in places to summit of coast range; Pacific Coast Range, Pillar Point Comment
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Feb 2 2012
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC301972  Eriophyllum staechadifolium E. M. Zeile 1921-7-30 s.n. San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  CAS-BOT-BC301974  Eriophyllum staechadifolium Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC301979  Eriophyllum staechadifolium Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  CAS-BOT-BC301981  Eriophyllum staechadifolium Ella Dales Cantelow 1940-9-2 3408 San Mateo N. of Davenport Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  SEINET12182126  Erodium botrys G. A. McCallum 1933-1 s.n. San Mateo near Woodside Comment
  UC1167714  Eryngium armatum Peter H. Raven 1957-6-24 10971 San Mateo Pebble Beach Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  JROH5639  Eryngium jepsonii John Rawlings 2014-6-7 1262 San Mateo Jasper Ridge Biological Preserve, Stanford University. 100 yards west from Escobar Gate, 20 yards north of road F. 161 Comment
  CAS-BOT-BC54508  Erysimum capitatum Alice Eastwood; John Thomas Howell 1938-6-26 6053 San Mateo 2 miles south of San Gregorio. Comment
  CAS-BOT-BC54819  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 0401 San Mateo Spring Valley Lakes. 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-BC54853  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54869  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  CAS-BOT-BC54871  Erysimum franciscanum J. H. Thomas 1960-3-11 8540 San Mateo Near intersection of Bunker Hill Road and Skyline Drive. 91 Comment
  CAS-BOT-BC54887  Erysimum franciscanum Oliver W. Norvell 1931-3-2 1410 San Mateo Near Crystal Springs Lake. Comment
  CHSC37823  Erysimum franciscanum J. F. Esperance 1982-3-6 San Mateo Top of San Bruno Mtn., 0.5 mi s of parking area along ridge top. 304 Comment
  JEPS90459  Erysimum franciscanum Dean W. Taylor 1988-3-30 9484 San Mateo northern slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2' Quad. 237 Comment
  RSA101912  Erysimum franciscanum G. B. Rossbach 1939-5-12 900 San Mateo 2.5 miles N of Montara near Devil s Slide Comment
  UC1034710  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo innder dunes back of sea bluff about 1 mi n Sharp Park (Salada) Comment
  UC1034733  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo s San Pedro Valley (nw of Peak Mt., steep sea-facing ledges about 1 mi inland); Montara Mts. 121 Comment
  UC1034937  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1034947  Erysimum franciscanum G. B. and R. P. Rossbach 1939-6-4 915 San Mateo w slope of ridge between Crystal Springs Lake and San Andreas Lake (small isolated pinnacle); Buriburi Ridge 121 Comment
  PGM187  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse Highway 1, Pigeon Pt Lighthouse just S of Comment
  SJSU15961  Erythranthe guttata John Rawlings, Ken Hickman 2016-5-26 1837 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
  CAS-BOT-BC403549  Eschscholzia californica John H. Thomas 1971-5-2 15812 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC403542  Eschscholzia californica H. A. Dutton 1900-2-27 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC403544  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC110570  Eschscholzia crocea T. S. Brandegee May 22 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC202737  Euonymus occidentalis L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch Canon [Canyon], Santa Cruz Mts. near Portola Comment
  CAS-BOT-BC206912  Euonymus occidentalis D. E. Breedlove 1974-5-13 36208 San Mateo Slopes of San Pedro Valley Park, Pacifica. 152 Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC18052  Euonymus occidentalis var. occidentalis F. T. Bioletti 1893-6-22 San Mateo Pilarcitos Canyon Comment
  POM126400  Euphorbia crenulata R. L. Pendleton 1907-4-20 604 San Mateo Colma Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  RSA18354  Euphorbia lathyris C. B. Wolf 1929-5-25 3734 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  UCR123136  Euphorbia oblongata Don Pendleton 2002-4-26 s.n. San Mateo San Francisco Bay Region, Woodside, Sandhill Road, 0.25 mi north of Portola Road, west of Hwy 280 152 Comment
  JROH1968  Euphorbia oblongata Ann Lambrecht 2012-12-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beside footbridge on Trail 12 Comment
  SJSU8505  Euphorbia oblongata L. F. Wagner 1979-5-27 31 San Mateo San Francisquito Cr access rd N of Newell Rd bridge Comment
  CDA9447  Euphorbia spathulata D. G. Kelch 2002-5-13 s.n. San Mateo Pulgas Ridge; SF watershed. Between Ralston Ave & I-280. 0 Comment
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  CAS-BOT-BC310623  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo New Grade Road - Portola Comment
  UC1557877  Eurybia radulina J. Semple, S. Heard 1987-9-21 8914 San Mateo CA-35 27.4 km s of CA-92 Comment
  SEINET10614933  Euthamia occidentalis Delzie Demaree 1933-9-24 Demaree 10531 San Mateo Rolling bay area. Leepsic Junction. P.O. Baden. Comment
  SEINET5708704 Image available Euthamia occidentalis Delzie Demaree 1933-1 10531 San Mateo Leepsic Junction, Baden. Rolling bay area.; Leepsic Junction Comment
  SJSU6623  Felicia amelloides T. M. Morton 1972-4-1 San Mateo residence 735 Laurelwood Dr, San Mateo Comment
  CAS-BOT-BC210049  Festuca arundinacea Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5166  Festuca arundinacea John Hunter Thomas 1988-6-2 24504 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  SEINET10887997  Festuca arundinacea P. Rubtzoff 1976-6-13 Rubtzoff 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5470  Festuca bromoides John H. Thomas 1968-5-3 14441 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278347  Festuca californica subsp. californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5487  Festuca microstachys J. H. Thomas 1957-4-16 6654 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH5491  Festuca microstachys Stephen N. Turitzin 1976-3-7 5 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278864  Festuca occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek near Iverson's Place Comment
  JEPS21675  Festuca occidentalis W. R. Dudley 1895-6-1 San Mateo Pescadero Creek Comment
  JROH5508  Festuca octoflora Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Ridge. Comment
  JROH5286  Festuca perennis John Hunter Thomas 1984-4-24 23305 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA218035  Filago gallica Walter Knight, I. Knight 1967-5-16 s.n. San Mateo Randolph Ave., south San Francisco Comment
  JROH246  Foeniculum vulgare Le Roy Abrams 1901-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  SEINET11119270  Foeniculum vulgare K. Thorne, J. Chandler 1986-7-25 4945 San Mateo Half Moon Bay, 2 miles S of Moss Beach at Dune Beach, adjacent to the Pacific Ocean. Comment
  RSA112397  Fragaria californica W. R. Dudley 1894-7-28 s.n. San Mateo Hill between Pescadero and La Honda, San Mateo County. Comment
  JEPS44879  Fragaria chiloensis W. L. Jepson 1921-4-3 9115 San Mateo canyon near Colma Comment
  CAS-BOT-BC437037  Fragaria chiloensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point about 1 mile north of Pigeon Point and about 39 miles south of San Francisco Comment
  JROH3665  Fragaria vesca W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC457513  Fragaria vesca subsp. californica W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs, Santa Cruz Pennisula Comment
  CAS-BOT-BC457521  Fragaria vesca subsp. californica C. F. Leitholdt 1893-6-2 s.n. San Mateo Between Woodside and Kings Mountain, Santa Cruz Pennisula Comment
  CAS-BOT-BC457527  Fragaria vesca subsp. californica George Oberlander 1949-4-9 58 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC457531  Fragaria vesca subsp. californica Donald A. Johansen 1933-5-18 709 San Mateo Redwoods along road from Portola to La Honda Comment
  CAS-BOT-BC52675  Frangula californica subsp. californica George Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge Comment
  CAS-BOT-BC52686  Frangula californica subsp. californica Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  UC136741  Frankenia salina Dr. E. B. Copeland 1903-6-18 3313 San Mateo Half Moon Bay Half Moon Bay (on sea coast on edge of cliff) Comment
  UC153585  Frankenia salina L. R. Abrams 1906-9-29 San Mateo Cooley's Landing Comment
  SEINET6694664 Image available Fraxinus oregona W. R. Dudley 1893-1 San Mateo San francisquita creek near big tree Comment
  CAS-BOT-BC212964  Fremontodendron californicum W. R. Dudley 1897-12-29 s.n. San Mateo Butano Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC130135  Fritillaria affinis B. 1903-3-1 5047 San Mateo Crystal Springs Lake Comment
  JROH4684  Fritillaria affinis John H. Thomas 1971-5-30 15973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1085319  Fritillaria affinis F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  CAS-BOT-BC130125  Fritillaria affinis Catherine A. Toschi 1963-3-17 63 :55 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  JROH4683  Fritillaria affinis John H. Thomas 1969-4-12 14893 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below dam Comment
  JROH4687  Fritillaria affinis John Hunter Thomas 1985-4-27 23538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278026  Fritillaria affinis Lyman Benson 1930-5-1 2053 San Mateo Stanford University. San Lorenzo Mt. Range. 122 Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  UC535103  Fritillaria liliacea H. E. and S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 152 Comment
  JEPS127813  Galium aparine Adam C. Schneider with C. Matt Guilliams 2013-4-7 77 San Mateo Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UCSB9136  Galium aparine Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean; 1 mi S. of Half Moon Bay Comment
  UCR123146  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6778 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
  JROH3785  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3807  Galium murale John Hunter Thomas 1992-4-23 25159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC303472  Gamochaeta ustulata W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mt Peninsula. Hill E of Salada Valley Comment
  CAS-BOT-BC194560  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  CAS-BOT-BC194571  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  POM132460  Garrya elliptica A. D. E. Elmer 1903-02 4469 San Mateo Portola. Comment
  CAS-BOT-BC194563  Garrya elliptica E. L. H. Knoche 1896-4-1 s.n. San Mateo Inland from Pescadero Comment
  SEINET12137147  Garrya elliptica Cummings 1933-1 s.n. San Mateo top of Jasper Ridge Comment
  JROH5186  Gastridium phleoides John H. Thomas 1973-6-15 16829 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CAS-BOT-BC526238  Gazania Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains; near Picnic Area Comment
  CAS-BOT-BC219145  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis. San Bruno Mountains. Comment
  CAS-BOT-BC219150  Genista monspessulana Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Brisbane Comment
  CHSC56539  Genista monspessulana Steven Triano 1988-5-24 177 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH2000  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2019  Genista monspessulana John Hunter Thomas 1991-5-2 25005 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  JROH2617  Geranium dissectum John Hunter Thomas 1983-4-20 21533 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  UCD164385  Geranium dissectum Peter Rubtzoff 1977-6-7 9028 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA0028489  Geranium dissectum Josephine Randall 1907-6-29 149 San Mateo Portola Valley. Comment
  UCSB19618  Geranium dissectum 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 152 Comment
  JROH2623  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2624  Geranium molle John H. Thomas 1956-4-7 5609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2627  Geranium molle John H. Thomas 1975-4-18 17782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  JROH3167  Gilia clivorum John Hunter Thomas 1991-4-11 24980 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC75485  Gilia clivorum C. F. Baker Apr 1903 1899 San Mateo San Bruno Hills Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  CAS-BOT-BC266510  Githopsis diffusa Fred Hemphill 1973-4-8 614 San Mateo San Carlos. N of Malabar Road and Melendy Drive 243 Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  RSA17890  Gnaphalium chilense C. B. Wolf 1927-6-15 s.n. San Mateo Skyline Boulevard, S of San Francisco Comment
  POM358932  Gnaphalium ramosissimum E. A. Purer 1933-8-13 5420 San Mateo Near Belmont Comment
  RSA195655  Gnaphalium ramosissimum John H. Thomas 1958-8-1 7376 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  UCR121580  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 1999-6-28 5015 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  RSA294163  Grindelia Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4226 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  CAS-BOT-BC304502  Grindelia hirsutula Roxana Stinchfield 1915-9-19 252 San Mateo Santa Cruz Mountain Peninsula. Palo Alto Comment
  CAS-BOT-BC304509  Grindelia hirsutula Paul H. Arnaud, Jr. 1963-9-15 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC304542  Grindelia hirsutula W. R. Dudley 1894-5-30 s.n. San Mateo Santa Cruz Peninsula. Near Redwood City Comment
  CAS-BOT-BC304544  Grindelia hirsutula W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo 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-BC304567  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  JEPS89739  Grindelia hirsutula Dean W. Taylor 1988-3-30 9480 San Mateo n. slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG & E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  SJSU15767  Grindelia hirsutula Toni Corelli 2011-9-14 722 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica 53 Comment
  UC520425  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3684 San Mateo South San Francisco 0 Comment
  POM216546  Grindelia stricta var. angustifolia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  SD30784  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-4 5414 San Mateo Baden Station Comment
  SEINET11835893  Grindelia stricta var. angustifolia E. A. Purer 1933-1 5525 San Mateo no further locality Comment
  UCD132574  Grindelia stricta var. platyphylla Julian A. Steyermark 1932-10-21 s.n. San Mateo Pigeon Point. Comment
  JROH441  Hedera helix Ann Lambrecht 2008-2-6 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail 2 above San Francisquito Creek Comment
  CAS-BOT-BC309545  Helenium puberulum John Thomas Howell 1939-6-16 14744 San Mateo Crystal Springs Lake Comment
  JEPS35417  Helenium puberulum L. M. Newlon 1921-7-30 254 San Mateo seashore from Salada to Mussel Comment
  JEPS35427  Helenium puberulum Alice King 1908-7-25 San Mateo Moss Beach Comment
  JROH835  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR141419  Helenium puberulum June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  CAS-BOT-BC309533  Helenium puberulum George Oberlander 1949-7-30 318 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  RSA18443  Helenium puberulum C. B. Wolf 1927-6-29 565 San Mateo 3 miles south of San Gregorio. Comment
  CAS-BOT-BC305338  Helianthella castanea G. Ward 1941-4-12 s.n. San Mateo Brisbane hills Comment
  JROH1836  Helianthemum scoparium Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305630  Helianthus californicus L. R. Abrams 1902-9-21 2989 San Mateo Woodside - Crystal Springs Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  JROH1172  Helminthotheca echioides John Hunter Thomas 1981-10-25 20770 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  CAS-BOT-BC305925  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francisquito Creek, ca 150 m upstream from Pope Street bridge, Menlo Park side of center line Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  SJSU3591  Helminthotheca echioides A. I. Wilson 1967-9-18 2 San Mateo by W side Los Trancos Cr c. midway between Portola Valley & Palo Alto Comment
  CAS-BOT-BC314914  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 367 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314916  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  SJSU8831  Hemizonia congesta subsp. luzulifolia S. Anderson 1962-5-12 San Mateo Crystal Springs Hills Comment
  UCD133004  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  SEINET11841255  Hemizonia corymbosa E. H. Graham 1931-1 6924 San Mateo Ano Nuevo Point Comment
  RSA133899  Hemizonia corymbosa subsp. corymbosa John H. Thomas 1959-8-16 8067 San Mateo About 2 miles N of Pigeon Point along the coast. 15 Comment
  POM360312  Hemizonia luzulifolia E. A. Purer 1933-8-4 18258 San Mateo Bayshore Hwy. Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA128900  Heracleum maximum P. H. Raven 1950-6-3 2237 San Mateo Woods around San Andres Lake 122 Comment
  JROH903  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-5-5 25218 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  CAS-BOT-BC176212  Hesperolinon congestum H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Comment
  RSA112351  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 San Mateo Back 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
  JROH2937  Hesperolinon micranthum John Hunter Thomas 1986-6-9 24091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311178  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148465  Heteromeles arbutifolia J. H. Thomas 1949-10-16 1156 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3685  Heteromeles arbutifolia John Hunter Thomas 1988-6-26 24529 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310765  Heterotheca sessiliflora subsp. echioides J. H. Thomas 1954-5-28 4236 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  RSA184913  Heterotheca sessiliflora subsp. echioides L. S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain. 366 Comment
  JROH3884  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420717  Heuchera micrantha Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain, rocky slope just below parking lot, summit of mountain Comment
  CAS-BOT-BC420889  Heuchera micrantha var. diversifolia Kellogg; Brannan 1880-5-31 s.n. San Mateo Redwoods Comment
  SEINET191646  Heuchera micrantha var. pacifica L. S. Rose 1941-7-2 41289 San Mateo Kings Mt 600 Comment
  CAS-BOT-BC319631  Hieracium albiflorum C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon, Black Mountain, Santa Cruz Mountain Peninsula Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  RSA187345  Hierochloe occidentalis John H. Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289250  Holcus lanatus Elizabeth McClintock 1974-11-8 s.n. San Mateo North side of Guadalupe Parkway in the saddle, San Bruno Mountain Comment
  JROH5206  Holcus lanatus John H. Thomas 1967-5-31 12929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5210  Holcus lanatus John Hunter Thomas 1981-6-4 20672 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake. Comment
  RSA681423  Holodiscus discolor Annuschka Deb 1989-7-19 315 San Mateo YBN [Yerba Buena Nursery], Woodside. Comment
  CAS-BOT-BC150067  Holodiscus discolor var. discolor David D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd., Santa Cruz Mountains Comment
  CAS-BOT-BC284684  Hordeum brachyantherum subsp. brachyantherum George Oberlander 1950-4-16 718 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  UC909372  Hordeum brachyantherum subsp. brachyantherum Ira L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  SEINET10610437  Hordeum brachyantherum subsp. brachyantherum Delzie Demaree 1932-5-8 Demaree 9106 San Mateo Spring Valley Road. Comment
  JROH5220  Hordeum brachyantherum subsp. californicum John H. Thomas 1968-5-3 14439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5240  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1977-6-16 18789 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. Comment
  JROH5255  Hordeum murinum subsp. leporinum John H. Thomas 1962-5-31 9899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39730  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC271362  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  RSA138172  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  RSA181227  Horkelia californica John H. Thomas 1964-6-19 10425 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  SD39947  Horkelia californica Edith A. Purer 1933-7-27 5341 San Mateo High stabilized sand dunes, Pigeon Point Comment
  SEINET5554737  Horkelia californica H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC144013  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  CAS-BOT-BC400967  Hypericum anagalloides Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  JEPS100821  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
  CHSC56086  Hypochaeris glabra Jan M. Karaz 1979-5-27 53 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-BC311389  Hypochaeris glabra Javier Penalosa 1963-3-30 2721 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JROH940  Hypochaeris radicata John Hunter Thomas 1988-5-16 24464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SD39736  Hypochaeris radicata Edith A. Purer 1933-7-27 5394 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC311490  Hypochaeris radicata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. East end of Summit Ridge Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  UCR240780  Iris T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3517 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
  SEINET4170681  Iris douglasiana Unknown 1925-3-27 San Mateo Burlingame. Comment
  UC1206487  Iris douglasiana Le Roy Abrams 1902-5-11 2441 San Mateo San Mateo Canyon Comment
  UC4275  Iris douglasiana J. Burtt Davy Jun 21 1893-Jun 23 1893 1129 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  UC4282  Iris douglasiana J. Burtt Davy 1895-4-20 1021 San Mateo Millbrae Comment
  UCR260807  Iris douglasiana S. White 1998-6-5 34 San Mateo Central Coast, City of Moss Beach, west side of intersection of Beach Way and Marine Blvd., 40 ft. down path leading from Moss Beach Distillery 21 Comment
  SEINET4170688  Iris douglasiana Unknown 1950-4-16 San Mateo Summitt Ridge, San Bueno Mts. 244 Comment
  UCSB880  Iris douglasiana Walker, Clifford 1954-4-20 San Mateo junction of Skyline Blvd and Highway to Half Moon Bay Comment
  CAS-BOT-BC133659  Iris longipetala Rimo Bacigalupi 1922-3-26 s.n. San Mateo Between Gazos Creek and Pigeon Pt. Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  CAS-BOT-BC133652  Iris longipetala Elmer I. Applegate 1895-3-3 282 San Mateo Purissima Comment
  SBBG1123  Iris longipetala H. and M. Dearing 1933-5-14 2766 San Mateo Skyline Boulevard, S of San Francisco Comment
  UC311543  Iris macrosiphon A. D. E. Elmer May 1903 4503 San Mateo Portola Comment
  JROH4428  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing along edge of Searsville Lake Comment
  JROH4436  Iris pseudacorus John Hunter Thomas 1990-6-7 24865 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake at boat ramp near bridge over the 2 halves of Searsville Lake. Comment
  SJSU15912  Isolepis carinata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1738 San Mateo South end of Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112625  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  CAS-BOT-BC112628  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  CAS-BOT-BC350921  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction, San Bruno Mountains. Comment
  CAS-BOT-BC352225  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  SEINET3877740  Juncus bufonius Ira L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point.; 0 Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  JEPS10200  Juncus bufonius var. congestus Rimo Bacigalupi with G. T. Robbins 1954-6-18 4559 San Mateo Point Ano Nuevo Comment
  JROH4471  Juncus bufonius var. occidentalis John Hunter Thomas 1991-5-9 25040 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below picnic area along road to dam. Comment
  JROH5596  Juncus effusus subsp. pacificus John Rawlings 2014-2-4 1206 San Mateo Jasper Ridge Biological Preserve, Stanford University; ecotone between dominant Salix exigua on sandy lake shore and Typha angustifolia in drying Searsville lake bed, 50 m south of the boat landing and lab. 104 Comment
  JEPS63835  Juncus hesperius William S. Cooper 1924-11-19 36 San Mateo Ano Nuevo Pt. Comment
  UC1101089  Juncus hesperius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1588 San Mateo about 1 mi s Half Moon Bay Comment
  JEPS63809  Juncus lescurii unknown 1925-5-28 3 San Mateo Salada 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
  UC14912  Juncus occidentalis Joseph Burtt Davy 1893-6-22 761 San Mateo Lake Vilarcitos Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC182761  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9230 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210121  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9232 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA796175  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA790997  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. Comment
  JROH5266  Koeleria macrantha Louis Adams 1963-5-25 26 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy field adjacent to Searsville Lake. Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC340702  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  JROH965  Lagophylla ramosissima John Hunter Thomas 1983-6-29 22722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2779  Lamium amplexicaule John H. Thomas 1979-4-7 19442 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5926  Lasthenia L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on the high point of Jasper Ridge Comment
  CAS-BOT-BC339061  Lasthenia californica V. F. Hesse 1964-5-26 3205 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339095  Lasthenia californica Kenton L. Chambers 1956-6-20 1046 San Mateo Pebble Beach near Pescadero Point Comment
  POM288356  Lasthenia californica Lyman Benson 1931-3-15 2645 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  CAS-BOT-BC339046  Lasthenia californica Andree M. Desrochers 1989-4-17 447 San Mateo Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University Comment
  CAS-BOT-BC339070  Lasthenia californica H. L. Mason 1917-4-10 116 San Mateo Crystal Springs Lake Comment
  JEPS17982  Lasthenia californica subsp. californica George B. Rossbach 1955-3-26 517 San Mateo n radio tower (upper n slope of mountain); San Bruno Mountain 335 Comment
  CAS-BOT-BC324425  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  JEPS18330  Lasthenia glabrata subsp. glabrata Edw. L. Greene 1886-5-11 San Mateo Belmont Comment
  RSA131837  Lasthenia glabrata subsp. glabrata John H. Thomas 1954-4-2 3792 San Mateo 1.5 miles E of center of Redwood City. 0 Comment
  SEINET3147835  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-5-11 sn San Mateo Belmont Comment
  CAS-BOT-BC355540  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3792 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  CAS-BOT-BC355543  Lasthenia glabrata var. glabrata David D. Keck 1932-4-29 1452 San Mateo Redwood City Comment
  CAS-BOT-BC355538  Lasthenia glabrata var. glabrata John H. Thomas 1997-4-11 17135 San Mateo to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  CAS-BOT-BC360402  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 130 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  JROH2029  Lathyrus latifolius Ann Lambrecht 2006-8-23 27 San Mateo Jasper Ridge Biological Preserve, Stanford University; downstream from low-flow crossing about 50 m Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  UCD106536  Lathyrus vestitus var. ochropetalus A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC202762  Lathyrus vestitus var. vestitus A. D. E. Elmer May 1903 4745 San Mateo San Mateo Comment
  UCR121561  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4972 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CDA5011  Lavatera arborea T. C. Fuller 1960-10-5 5199 San Mateo Highway 1 at Pebble Beach State Park, south of Pescadero. 0 Comment
  CAS-BOT-BC323158  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323176  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  RSA103960  Layia chrysanthemoides M. K. Curran 1885-04 s.n. San Mateo Belmont. Comment
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  CAS-BOT-BC323181  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  CAS-BOT-BC321095  Layia gaillardioides W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC321070  Layia gaillardioides Rimo Bacigalupi 1923-4-29 s.n. San Mateo Dr. Williams' place, Old La Honda Grade near La Holda. Comment
  CAS-BOT-BC321098  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo Skyline Blvd. W of Millbrae Highlands, Santa Cruz Mountains. Comment
  UC30641  Layia gaillardioides Ivar Tidestrom 1894-5-1 San Mateo Comment
  CAS-BOT-BC327458  Layia hieracioides David D. Keck; Wm. M. Hiesey 1940-6-1 5166 San Mateo Skyline Boulevard opposite north end of Lake San Andreas 137 Comment
  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
  POM284972  Layia hieracioides Lyman Benson 1930-5-26 2130 San Mateo Stanford University; Lake Searsville. 152 Comment
  UC828938  Layia hieracioides John Thomas Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  CAS-BOT-BC327455  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327479  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1085 San Mateo San Bruno Mountain; Devil's Arroyo Comment
  CAS-BOT-BC327481  Layia hieracioides Peter H. Raven 1950-4-16 1794 San Mateo Summit ridge of San Bruno Mountains 243 Comment
  UC913054  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo e of Salada; Skyline Boulevard Comment
  CAS-BOT-BC382095  Layia platyglossa John H. Thomas 1967-5-2 12816 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mt. intersection; Hillsborough Comment
  CAS-BOT-BC382217  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley HIll (SW of Stanford Unviersity) 600 Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  JROH997  Layia platyglossa John H. Thomas 1974-4-13 17153 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine, top of ridge Comment
  SEINET5712167  Layia platyglossa R. E. Dengler 1960-1 11 San Mateo Jasper Ridge, Stanford Biological Reserve.; Stanford Biological Reserve 191 Comment
  RSA128806  Layia platyglossa subsp. platyglossa Peter H. Raven 1950-4-16 1780 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC527267  Lemna minuta Ira L. Wiggins 1980-9-1 22271 San Mateo Pool in San Francisquito Creek, ca. 250 m. upstream from Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC527273  Lemna minuta Roxana S. Ferris 1921-3-20 2114 a San Mateo Alpine Creek Road near juncture with Pescadero Road Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221529  Lepechinia calycina W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Near Belmont Comment
  CAS-BOT-BC221532  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC221534  Lepechinia calycina D. E. Breedlove 1974-5-13 36206 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC221539  Lepechinia calycina Alice Eastwood 1912-6-10 338 San Mateo Crystal Springs Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. Comment
  UC518036  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  UC76164  Lepechinia calycina Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  UCD115701  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1538  Lepidium nitidum E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1546  Lepidium nitidum John H. Thomas 1977-2-20 18468 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1551  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1552  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1560  Lepidium strictum John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM216309  Lepidium strictum D. D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226604  Leptosiphon ambiguus Ned Cahill 1974-4-1 149 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC226606  Leptosiphon ambiguus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC226609  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  POM65849  Leptosiphon ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside. Comment
  JROH5672  Leptosiphon androsaceus John Rawlings 2014-4-10 1274 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few feet uphill from trail 5 in serpentine prairie 124 Comment
  UC729676  Leptosiphon androsaceus Carl B. Wolf 1929-5-26 3731 San Mateo s of Pescadero; Pebble Beach Comment
  OBI43249  Leptosiphon androsaceus Delzie Demaree 1932-4-27 9020 San Mateo Dry fields above Spring Valley Lakes Comment
  RSA0063624  Leptosiphon androsaceus L. R. Abrams 1902-5-11 2445 San Mateo San Mateo Canyon. Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  RSA18357  Leptosiphon androsaceus C. B. Wolf 1929-5-25 3731 San Mateo N of Pigeon Pt, San Mateo Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City Comment
  UC176059  Leptosiphon croceus Miss Kate Cole May 1914 San Mateo Moss Beach Comment
Read comments
Feb 8 2016
  UCSB12382  Leptosiphon liniflorus Dearing, Hugh; Dearing, Margaret 1933-5-14 San Mateo Skyline Drive, so. of San Francisco Comment
  RSA187442  Leptosiphon liniflorus James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC964718  Leptosiphon parviflorus Herbert L. Mason 1935-5-21 8315 San Mateo Pebble Beach Pescadero Comment
  JROH3187  Leptosiphon parviflorus Daniel Cohen 1953-4-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; near top of Jasper Ridge Comment
  RSA0103657  Leptosiphon parviflorus H. E. Wieser 1929-05 s.n. San Mateo Pebble Beach. Coast Range. 30 Comment
  SD38815  Leptosiphon parviflorus Miss Cummings, McCallum 1933-4-26 3714 San Mateo Hills back of Stanford Campus. Comment
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  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-BC324052  Lessingia arachnoidea W. R. Dudley 1909-10-10 s.n. San Mateo East side of Crystal Springs Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324056  Lessingia arachnoidea L. R. Abrams 1902-9-21 2996 San Mateo Crystal Lake Comment
  CAS-BOT-BC324059  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  CHSC98697  Lessingia arachnoidea Samantha Mackey Hillaire 2007-7-17 1245 San Mateo Pulgas Ridge, near south end of Lower Crystal Springs Reservoir, and north end of Upper Crystal Springs Reservoir. North of intersection of Skyline Blvd and Hwy 35, on sides of a small access road. UTM 10 557433E, 4151982N. 106 Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  POM216543  Lessingia arachnoidea D. D. Keck 1931-10-5 1280 San Mateo Crystal Springs lake, E side Comment
  POM49389  Lessingia arachnoidea L. R. Abrams 1902-9-2 2996 San Mateo Crystal Lake Comment
  SEINET3071639 Image available Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake. Comment
  SEINET3445401  Lessingia arachnoidea L. S. Rose 1941-9-6 1901 San Mateo San Mateo Canyon, San Mateo Canyon 90 Comment
  UC1287458  Lessingia arachnoidea Willard Spence 1960-10-16 634 San Mateo Skyline Blvd. Crystal Springs Lake (along roadside) Comment
  JROH1003  Lessingia glandulifera var. glandulifera C. F. Leitholt 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC73895  Lessingia hololeuca J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC342093  Leucanthemum vulgare Robert S. Cox, Jr. 1946-8-10 s.n. San Mateo Summit of Santa Cruz Mountains (Cahil [Cahill] Ridge) along State Highway 5, near road to Half Moon Bay 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
  UCD64593  Leymus mollis David L. Hanson 1976-3-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC451671  Lilaea scilloides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond 15 and 20. Comment
  SEINET12182117  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lakes and Sky Line Drive Comment
  HSC97165  Limnanthes macounii T. W. Henrich 2004-4-21 San Mateo Moss Beach; cultivated field on Cabrillo Ranch property, adjacent to Hwy 1, and immediately east of Half Moon Bay Airport. Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  JROH5866  Limosella acaulis Herb Dengler 1982-8-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238361  Limosella aquatica L. R. Abrams; I. L. Wiggins 1939-6-3 424 San Mateo Ano Nuevo Point Comment
  SEINET8729325 Image available Linanthus androsaceus subsp. croceus Herbert L. Mason 1935-1 8315 San Mateo Pebble Beach, Pescadero Comment
  UC202827  Linanthus liniflorus A. D. E. Elmer Jun 1903 4704 San Mateo s end Crystal Springs Lake Comment
  POM138877  Linum angustifolium Copeland 1903-6-9 3307 San Mateo Montara Point. Comment
  JEPS85571  Lithocarpus densiflorus Craig Dremann 1986-8-30 320 San Mateo La Honda; along Calif Highway 84 (La Honda-Woodside Rd) at mile marker 8.37 at intersection of Pescadero Rd Comment
  SEINET8912914  Lithocarpus densiflorus A. D. 1974-1 San Mateo California 35, about 5 miles from junction with 92 701 Comment
  RSA15201  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1926-10-19 78 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  JROH3887  Lithophragma affine John H. Thomas 1971-4-3 15746 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
  JROH3891  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  JROH3892  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  CAS-BOT-BC436218  Lithophragma heterophyllum Le Roy Abrams 1901-3-1 1154 San Mateo Portola Comment
  JROH737  Logfia gallica John H. Thomas 1977-5-14 18607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH743  Logfia gallica John Hunter Thomas 1982-5-18 20944 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  CAS-BOT-BC342472  Logfia gallica Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JEPS17119  Lomatium macrocarpum W. L. Jepson 1914-3-22 5736 San Mateo Redwood City Comment
  POM287764  Lomatium macrocarpum Lyman Benson 1931-3-15 2636 San Mateo Emerald Lake, Redwood City Comment
  POM202458  Lomatium macrocarpum L. S. Rose 1933-5-17 33168 San Mateo Redwood City Comment
  POM132877  Lomatium vaginatum A. D. E. Elmer 1903-04 4794 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC240598  Lonicera hispidula Carl B. Wolf 1930-11-5 1805 San Mateo 2 miles west of La Honda, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC240600  Lonicera hispidula J. H. Thomas 1949-10-16 1157 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  CAS-BOT-BC240603  Lonicera hispidula Carl B. Wolf 1931-11-5 1805 San Mateo Santa Cruz Mts. 2 mi. w. of La Honda 304 Comment
  SEINET8907183  Lonicera interrupta A. D. 1974-1 San Mateo hwy. 35 ca. 6 mi. from Jct. hwy. 92 701 Comment
  JEPS90725  Lonicera involucrata Dean W. Taylor 1989-4-18 10220 San Mateo ridgetop between Ox Hill and Scarper Peak; Santa Cruz Mountains, Montara 7 1/2 quadrangle 472 Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC164679  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC243961  Lonicera involucrata var. ledebourii John H. Thomas 1967-5-2 12802 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  CAS-BOT-BC243967  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-1 1918 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243970  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  POM46728  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-06 4272 San Mateo Lake San Andreas. Comment
  RSA51271  Lonicera involucrata var. ledebourii P. H. Raven 1950-4-30 1983 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  JEPS91401  Lotus benthamii Dean W. Taylor 1989-8-1 10412 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  SD227810  Lotus corniculatus G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCR101648  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH2046  Lotus corniculatus John Hunter Thomas 1982-5-18 20937 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  JROH2051  Lotus corniculatus Carol Zabel 1989-6-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, just downstream from low-flow crossing on Road C Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  SEINET3696856 Image available Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo South of Pescadero 30 Comment
  UC15578  Lotus formosissimus J. Burtt Davy 1895-4-20 1030 San Mateo Lake San Andreas Comment
  UC311112  Lotus formosissimus A. D. E. Elmer Apr 1903 4860 San Mateo Lake San Andreas Comment
  HSC23905  Lotus scoparius Mary Katherine Wicksten 1971-6-21 85 San Mateo Huddart Park Comment
  SEINET12151372  Lotus subpinnatus Unknown 1932-1 9137 San Mateo Sky Line Drive Comment
  CAS-BOT-BC157978  Lotus tenuis Peter Rubtzoff 1981-8-29 9664 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; area northwest of Fog Forest Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 San Mateo Huddart Park Rd. bank near office Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  SEINET10488355  Lupinus affinis David B. Dunn, Howard Brown 1946-5-16 Dunn 2601 San Mateo At the top of canyon road. 0.7 Mile e of the junction with skyline blvd, Junction being 20.8 miles from bridge on n side of boulder creek, on the summit Of the rolling hills of san francisco penninsula Comment
  SEINET10488409  Lupinus albifrons Charles F. Baker 1903-4-6 Baker 1889 San Mateo San bruno hills, tufts of many stems on a woody base Comment
  SEINET10488410  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-BC195815  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  POM177245  Lupinus albifrons var. albifrons L. R. Abrams 1904-4-10 38 San Mateo San Mateo Canyon, Santa Cruz Mts. 122 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-BC195801  Lupinus albifrons var. albifrons Charles Piper Smith 1944-6-15 44103 San Mateo Broadway, railroad right of way Comment
  RSA0060733  Lupinus albifrons var. collinus Daisie Huang 2006-8-6 06080601 San Mateo Fifield Ridge, inside San Francisco Water Authority land. 386 Comment
  SEINET5766825 Image available Lupinus albifrons var. collinus Lewis S. Rose 1931-1 s.n. San Mateo San Francisco Bay region Comment
  UC201916  Lupinus albifrons var. collinus A. D. E. Elmer May, 1903 464 j San Mateo San Bruno Hills Comment
  UCD106655  Lupinus arboreus June McCaskill 1954-5-8 297 San Mateo Moss Beach. Comment
  SEINET10488480  Lupinus arboreus Charles Piper Smith 1948-4-23 Smith 48140 San Mateo Hwy 1. 1.1 Miles n montara Comment
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 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
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  CAS-BOT-BC215064  Lupinus chamissonis Charles Piper Smith 1948-4-23 48146 San Mateo Junction of SF County Jail Road, Highway 5 Comment
  SEINET11071887 Image available Lupinus densiflorus A. A. Heller 1907-5-23 8561 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA413555  Lupinus densiflorus var. densiflorus E. A. Purer 1933-8-25 5512 San Mateo Skyline Drive. Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  SD37885  Lupinus formosus var. formosus Edith A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  POM276515  Lupinus latifolius subsp. latifolius Lyman D. Benson 1930-5-3 2092 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  RSA176412  Lupinus latifolius subsp. latifolius John H. Thomas 1964-4-19 10331 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  JROH2125  Lupinus luteolus H. & R. Dengler 1958-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200' due north of point where Corte Madera Cr. enters the preserve Comment
  UC729631  Lupinus microcarpus var. densiflorus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road e Skyline Blvd. 304 Comment
  UCD35769  Lupinus microcarpus var. densiflorus Beecher Crampton 1962-6-11 6484 San Mateo 5 miles west of Belmont, jct. Skyline Blvd. and Ralston Ave. Comment
  RSA413810  Lupinus nanus subsp. nanus D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  SEINET10871083  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2545 San Mateo Collected in open lush meadow in the hilltops of the san francisco peninsula, On hwy. From woodside to la honda, 3.7 mi ne of la honda on the se side of the Hwy. Comment
  SEINET11072303 Image available Lupinus polycarpus Lewis S. Rose 1942-3-30 42006 San Mateo Mills Fields 2 Comment
  JROH2145  Lupinus succulentus John H. Thomas 1974-4-12 17143 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Escobar gate Comment
  UC187796 Image available Lupinus succulentus var. layneae Katharine Brandegee 1918-6-23 San Mateo Farallon City Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  SEINET10491013  Lupinus vallicola subsp. vallicola Dengler 1960-4-12 DENGLER 21 San Mateo Corolla deep blue and white; in grassland below chaparral, on dry, rocky, South-facing slope. Jasper ridge, stanford biological reserve. 122 Comment
  JEPS34467  Lupinus variicolor L. Heckard and R. Bacigalupi 1963-7-2 1356 San Mateo trail to Montara Peak above old county road Comment
  POM248727  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC1129743  Lupinus variicolor H. S. Yates 1935-2-3 5005 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC903067  Lupinus variicolor Ethel Crum 1934-4-29 1699 San Mateo 4 mi s Pescadero (open slope near ocean); s of Pescadero Comment
  SEINET10489088  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  SEINET10489089  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  SEINET10489108  Lupinus variicolor Smith 1948-4-23 Smith 48139 San Mateo Hwy 1, montara, government property. Comment
  SEINET10489109  Lupinus variicolor Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mtn. Lower part of colma canyon. Comment
  SEINET10489110  Lupinus variicolor Smith 1948-4-23 Smith 48141 San Mateo Hwy 1, san pedro point, north grade. Comment
  SEINET12154794  Lupinus variicolor M. T. Doutt 1931-1 422 San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH4527  Luzula comosa var. comosa John Hunter Thomas 1981-4-23 20485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441267  Luzula macrantha E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge 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
  UC311531  Lysichiton americanus A. D. E. Elmer June, 1903 4551 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JROH3362  Lysimachia arvensis H. A. Dutton 1900-2-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  CHSC28568  Lythrum hyssopifolia M. S. Taylor 1978-5-31 1874 San Mateo Ano Nuevo State Reserve. Comment
  UC796711  Lythrum hyssopifolia Ira L. Wiggins 1949-7-2 12195 San Mateo on Pescadero Beach Pescadero Beach Comment
  CAS-BOT-BC342589  Madia Cherie Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS40339  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo between Crystal Springs Lake and San Mateo Comment
  UC463563  Madia elegans L. R. Abrams and I. L. Wiggins 1930-11-13 173 A San Mateo above Crystal Springs Lake Comment
  UC729632  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi w Skyline Blvd. (on Alpine Road) 304 Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JEPS27363  Madia exigua Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7623 San Mateo about copse edges on lateral ridge below and se of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of mountain); San Bruno Mountain 304 Comment
  JROH1063  Madia exigua John Hunter Thomas 1992-5-5 25219 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH6204  Madia exigua John Rawlings 2014-5-6 1234 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH1070  Madia gracilis John H. Thomas 1968-5-3 14446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1083  Madia gracilis John Hunter Thomas 1983-7-7 22820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176528  Madia gracilis John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; near Westridge end of ridge Comment
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May 25 2015
  POM56191  Madia madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain. Comment
  RSA120834  Madia madioides S. S. Tillett, I. Sternback 1956-6-24 529 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  SEINET8734423 Image available Madia madioides L. S. Rose 1941-1 41287 San Mateo Kings Mountain, 540 Comment
  CAS-BOT-BC345109  Madia sativa Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC345142  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo About 2 miles SW of Pescadero 60 Comment
  CAS-BOT-BC353475  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  UC483494  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo sea bluffs at Pescadero Beach Comment
  UCR256297  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 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
  RSA244377  Maianthemum racemosum subsp. amplexicaule C. W. Tilforth, John Dourley 1973-7-19 932 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  JROH4703  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek Comment
  JROH4704  Maianthemum stellatum John H. Thomas 1969-4-12 14885 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwoods below dam Comment
  CAS-BOT-BC514164  Maianthemum stellatum Elmer I. Applegate 1895-4-6 709 b San Mateo Hillside above Stanford University Comment
  CAS-BOT-BC514166  Maianthemum stellatum George Oberlander 1950-3-18 513 San Mateo Pilarcites Canyon Comment
  CAS-BOT-BC514169  Maianthemum stellatum Walter & Irja Knight 1964-5-4 s. n. San Mateo Colma Canyon, south ridge Comment
  CAS-BOT-BC203908  Malacothamnus aboriginum Alice Eastwood; John Thomas Howell 1939-6-30 7435 San Mateo Los Trancos Creek near Stanford University Comment
  UC138331  Malacothamnus aboriginum J. W. Congdon 1902-7-20 San Mateo Spring Valley Comment
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Aug 31 2006
  UC1041013  Malacothamnus davidsonii J. W. Congdon 1901-7-13 San Mateo Spring Valley Comment
  JROH2959  Malacothamnus fasciculatus John H. Thomas 1969-5-28 15085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC206319  Malacothamnus fremontii J. W. Congdon 1897-7-27 s.n. San Mateo Belmont Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  SEINET7247993  Malva nicaeensis Richard A. Dodge 1957-1 31 San Mateo Canyon in San Bruno City Limits, just south of Sneath Lane, between Junipero Serra Boulevard, and State Highway 5. 183 Comment
  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
  RSA120026  Marah fabacea W. R. Dudley 1896-4-6 s.n. San Mateo Foothills near Stanford University; Santa Cruz Peninsula. Comment
  RSA440956  Marah fabacea K. M. Stocking 1947-5-15 39 San Mateo 2 miles W of Redwood City, just E of Woodside. Comment
  SD39366  Marah oregana Edith A. Purer 1933-4-25 3656 San Mateo King's Mountain Road Comment
  CDA5694  Marrubium vulgare C. M. Sill 1961-7-1 San Mateo Laurel School, Menlo Park. 0 Comment
  JROH5757  Medicago arabica M. Ray 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill Gate Comment
  JROH2162  Medicago polymorpha John H. Thomas 1966-4-24 11579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2161  Medicago polymorpha John H. Thomas 1963-6-23 10174 & 10175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC157959  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-4-16 8952 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Along west side of East Fork Colma Creek canyon Comment
  CAS-BOT-BC269470  Melica californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  SBBG44985  Melica californica L. R. Abrams 1902-5-4 2407 San Mateo Woodside Comment
  RSA135801  Melica imperfecta W. R. Dudley 1899-05 s.n. San Mateo Road from San Andreas Res. to Pilarcitos. Santa Cruz Mountain Peninsula. Comment
  RSA135746  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo South slope of Montara Mt. Comment
  CAS-BOT-BC264188  Melica subulata W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264245  Melica torreyana John H. Thomas 1971-5-2 15850 San Mateo Near intersection of Canada Road and Edgewood Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC264248  Melica torreyana W. R. Dudley 1899-5-1 s.n. San Mateo Road from San Andreas Rs. to Pilarcitos, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264250  Melica torreyana W. R. Dudley 1894-8-13 s.n. San Mateo Devil's Canyon, Santa Cruz Mountain Peninsula Comment
  JROH2181  Melilotus albus John Hunter Thomas 1983-6-29 22695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD18538  Melilotus albus Roman Gankin 1950-7-2 6 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH2182  Melilotus indicus John H. Thomas 1965-5-12 10646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2197  Melilotus indicus John Hunter Thomas 1987-5-15 24283 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH2802  Melissa officinalis Carol Zabel 1989-8-7 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13, half way from causeway bridge to Leonard's bridge, north side of trail Comment
  UC1244714  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo about 5 mi sw Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  UC634880  Mentha pulegium Herbert L. Mason Oct. 1923 785 San Mateo near summit of Jasper Ridge (toward the Hermits); near summit of Jasper Ridge toward the Hermits Comment
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Sep 19 2011
  JROH2815  Mentha pulegium John Hunter Thomas 1979-9-9 19711 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  CAS-BOT-BC438139  Mesembryanthemum nodiflorum W. R. O. 1973-10-10 1230 San Mateo Most stations; mobile estate project. Redwood City Comment
  CAS-BOT-BC428903  Micranthes californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. 1/4 mi. e. of Brisbane power lines Comment
  RSA100997  Micropus californicus G. Oberlander 1949-7-24 286 San Mateo Northern Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC348574  Micropus californicus var. californicus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC348576  Micropus californicus var. californicus Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Southwest Canyon below NBC Tower Comment
  CAS-BOT-BC348581  Micropus californicus var. californicus Margaret A. Barry 1937-4-21 9 San Mateo On Coal Mine Ridge Comment
  JROH1118  Micropus californicus var. californicus John H. Thomas 1955-5-6 5004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS49068  Microseris douglasii subsp. douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo w Redwood City; Emerald Lake 91 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
  JROH1148  Microseris douglasii subsp. douglasii John Hunter Thomas 1987-5-5 24249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1153  Microseris douglasii subsp. douglasii John Rawlings, Toni Corelli 2010-5-19 0928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 20. 88 Comment
  CAS-BOT-BC349016  Microseris douglasii subsp. douglasii George Oberlander 1950-4-23 880 San Mateo San Francisco Watershed Reserve. Near Lower Crystal Spr. Lake Comment
  CAS-BOT-BC349143  Microseris douglasii subsp. tenella Philip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  POM53382  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside. Comment
  UC50013  Microseris douglasii subsp. tenella E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  JROH1154  Microseris douglasii subsp. tenella Duncan M. Porter 1960-4-22 657 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-3 Comment
  HSC23941  Mimulus aurantiacus var. aurantiacus Mary Katherine Wicksten 1971-6-15 7 San Mateo Huddart Park, above Zwierlein Area Comment
  JROH4069  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  RSA130970  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  RSA1950  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo one-half way up east side of the La Honda Grade, Santa Cruz Mtns. 305 Comment
  UC1063413  Mimulus aurantiacus var. aurantiacus N. K. Carlson 1935-7-5 53 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  RSA53515  Mimulus glaucescens Edward L. Greene s.n. San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
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Jul 13 2018
  UC103734  Mimulus grandis C. F. Baker 1902-5-4 759 San Mateo Woodside Comment
  SBBG33480  Mimulus guttatus A. D. E. Elmer -Aug-1903 4857 San Mateo Crystal Springs Lake Comment
  JROH4089  Mimulus guttatus D. E. Breedlove 1971-5-5 19328 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  RSA60036  Mimulus guttatus G. R. Campbell 1950-6-7 15485 San Mateo 2 miles north of junction of San Mateo road and Hwy 5, hills west of San Jose. 457 Comment
  RSA788375  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains: 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  JROH1698  Minuartia douglasii John H. Thomas 1961-4-4 9044 D San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214088  Monardella villosa R. Bacigalupi 1946-7-6 2793 San Mateo Along Edgemar Road, 1 1/2 mi. above Edgemar, northern San Mateo Co. Comment
  CAS-BOT-BC214173  Monardella villosa Gelsomina Smith 1951-6-5 106 San Mateo Searsville Lake edge 106 Comment
  SEINET13948725 Image available Monardella villosa Lewis S. Rose 1950-1 50135 San Mateo Emerald Lake region, hills W of Redwood City, alt ca 800 ft 244 Comment
  UC1041059  Monardella villosa subsp. franciscana J. W. Congdon 1901-7-7 San Mateo Road Millbrae to Spring Valley Comment
  SEINET10582378  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 181 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10582379  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 183 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10582381  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 188 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2850  Monardella villosa subsp. villosa John Hunter Thomas 1988-6-2 24507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET892710  Monardella villosa var. franciscana G. K. Helmkamp, E. A. Helmkamp 1999-1 4991 San Mateo Pescadero Crk. Watershed: Bean Hollow Rd. 0.3 miles S of Pescadero Rd. (SW of Pescadero). Slopes abov Butano Crk. (Pigeon Pt.) 60 Comment
  UC50083  Monolopia gracilens J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC672605  Morella californica Herbert L. Mason 1927-4-23 3694 San Mateo Pescadero Creek near Bloomquist Mill Comment
  UCSC007765  Morella californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA31867  Myoporum laetum Robin Breckenridge, K. Filippini 2010-2-18 PDR# 1463755 San Mateo Miramar: Highway 1, next to Frenchman Creek. 0 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
  CAS-BOT-BC101777  Myrica californica Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine Comment
  JROH2695  Myriophyllum aquaticum John Hunter Thomas 1983-5-31 22318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5318  Myriophyllum aquaticum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2467 San Mateo Around the shores of Searsville Lake, Jasper Ridge Biological Preserve, Stanford University. 0 Comment
  POM145632  Myriophyllum sibiricum L. R. Abrams 1927-7-15 s.n. San Mateo Pond Skyline Blvd. back of south San Francisco. Comment
  CDA5310  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2471 San Mateo East shore of Lower Crystal Springs Reservoir, 0.8 km (0.5 mile) northwest of San Mateo Creek dam. 0 Comment
  CDA5316  Myriophyllum spicatum subsp. spicatum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2468 San Mateo Cove west of dam, south end of San Andreas Lake. 0 Comment
  CAS-BOT-BC260021  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260027  Nassella lepida John H. Thomas 1971-5-2 15855 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  POM295470  Nassella pulchra Lyman Benson 1935-5-5 6519 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  RSA176741  Nassella pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  UCD37956  Nassella pulchra Beecher Crampton 1962-6-11 6486 San Mateo San Mateo County, 5 miles west of Belmont, at junction of Ralston Avenue and and Skyline Boulevard, at foot of western slope of Pulgas Ridge, along eastern side of lower Crystal Springs Reservoir. Comment
  UCD87481  Nassella pulchra Beecher Crampton 1962-6-11 6486 San Mateo 5 miles west of Belmont, junction Ralston Ave. and Skyline Blvd. Comment
  JROH1574  Nasturtium officinale John Hunter Thomas 1987-4-7 24177 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC856873  Navarretia heterodoxa Lewis S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 121 Comment
  UC52679  Navarretia squarrosa J. Burtt Davy 1893-6-17 781 San Mateo Belmont Comment
  UCR121584  Navarretia squarrosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4985 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UC131456  Nemophila menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  CAS-BOT-BC219488  Nemophila parviflora George Oberlander 1950-4-16 691 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH2744  Nemophila parviflora var. parviflora John H. Thomas 1969-4-20 14899 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2743  Nemophila parviflora var. parviflora Herbert Dengler 1967-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15282  Nemophila parviflora var. parviflora Carl B. Wolf 1927-4-3 249 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC140430  Oemleria cerasiformis John H. Thomas 1974-5-9 17327 San Mateo San Pedro Valley, Northern part of county, inland from Pacifica 152 Comment
  CAS-BOT-BC140433  Oemleria cerasiformis Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mt. Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  JROH3705  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slope along road near Searsville Lake Comment
  JROH3711  Oemleria cerasiformis John Hunter Thomas 1981-2-14 20220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM89248  Oemleria cerasiformis Winslow s.n. San Mateo King's mt. near Palo Alto. Comment
  SEINET5563016  Oemleria cerasiformis H. S. Gentry 1931-1 17 San Mateo 1.5 mile W of San Mateo, Half-Moon Bay road. Comment
  UC203514  Oenanthe sarmentosa A. D. E. Elmer July 1903 4690 San Mateo Alpine School House Comment
  RSA301273  Oenothera Andrew R. Moldenke 1975-9-6 3419 San Mateo Pigeon Point Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  CHSC57090  Oenothera elata subsp. hookeri Steven Triano 1988-5-24 209 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA18444  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo 3 miles south of San Gregorio. Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  JROH3090  Orobanche vallicola Toni Corelli 2003-11-5 266 San Mateo Jasper Ridge Biological Preserve, Stanford University; in moist woodland above San Francisquito Creek along trail 2 82 Comment
  CAS-BOT-BC502962  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Searsville Lake Comment
  CAS-BOT-BC238395  Orthocarpus James McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  RSA40251  Orthocarpus densiflorus L. S. Rose 1948-5-16 48113 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  RSA130824  Orthocarpus faucibarbatus var. albidus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero. Comment
  CAS-BOT-BC173631  Orthocarpus pusillus Peter Rubtzoff 1977-4-14 8941 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA176714  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
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Feb 15 2013
  SEINET244349  Osmorhiza chilensis David H. French 1968-4-12 2843 San Mateo Near Palo Alto coast (Pescadero) Road, 11.7 mi. E. of Pescadero. Comment
  CHSC25146  Oxalis oregana R. N. Bowman 1971-4-5 17 San Mateo On embankment along E. side of Gazos Creek, ca. 7.6 mi. N.W. of Big Basin State Park office and ca. 25 yards W. of Gazos Creek Rd. 121 Comment
  UC1130246  Oxalis oregana N. K. Carlson 1935-7-3 114 San Mateo 3 mi s Bellvale; Santa Cruz quad 91 Comment
  UC762243  Oxalis oregana R. F. Hoover 1939-3-3 3896 San Mateo above Portola (on La Honda rd) Comment
  RSA240600  Oxalis oregana C. W. Tilforth, John Dourley 1973-7-19 934 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  CAS-BOT-BC253970  Parapholis incurva John H. Thomas 1963-5-20 10138 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  UCSC000079  Parapholis incurva A. Hormay 1932-5-29 16 San Mateo San Bruno 0 Comment
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  POM207798  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  JROH5690  Pectocarya pusilla John Rawlings 2015-4-7 1455 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  POM63452  Pectocarya pusilla A. D. E. Elmer 1903-04 4676 San Mateo Portola. Comment
  JROH4098  Pedicularis densiflora Robert Robertson 1954-4-23 102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  UC886634  Pedicularis densiflora Lewis S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake 152 Comment
  UCR131712  Pedicularis densiflora C. B. Wolf 1927-2-26 00221 San Mateo La Honda Grade 305 Comment
  POM226859  Pedicularis densiflora L. R. Abrams 1914-3-1 5058 San Mateo Kings Mountain Road, Santa Cruz Mtns. 152 Comment
  CAS-BOT-BC266665  Pedicularis dudleyi J. H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC266668  Pedicularis dudleyi W. R. Dudley 1903-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Iverson's, Pescadero Creek Comment
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207026  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  JEPS81003  Pelargonium vitifolium Edward Lee with H. L. Mason 1935-6-16 1530 San Mateo between Pigeon Point and San Gregorio Comment
  JROH98  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH6183  Pellaea mucronata var. mucronata John Rawlings 2017-12-19 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near south border of Preserve just east of Westridge fork of Corte Madera Creek. 134 Comment
  CAS-BOT-BC77003  Pentagramma triangularis subsp. triangularis John H. Thomas 1958-3-19 7068 San Mateo East facing lsope of San Bruno Mountain, just north of South San Fancisco. 91 Comment
  JROH111  Pentagramma triangularis subsp. triangularis John H. Thomas 1974-11-5 17663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  JROH112  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. 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-BC418849  Persicaria hydropiperoides Roxana S. Ferris 1920-9-3 2047 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC419387  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway 1 Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  JEPS37161  Petasites frigidus var. palmatus James G. Daly 232 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  RSA10999  Petasites palmatus C. B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  POM87739  Petunia parviflora L. R. Abrams 1902-9-21 2994 San Mateo Crystal Lake Comment
  RSA128808  Phacelia californica Paul R. Hichborn 1920-4-25 s.n. San Mateo Crystal Springs Lake, Santa Cruz Mountain Peninsula. Comment
  RSA152207  Phacelia californica John H. Thomas 1961-5-7 9313 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1301150  Phacelia californica Helen K. Sharsmith 1963-2-16 5141 San Mateo lower slopes of mt. above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  SJSU7544  Phacelia distans L. S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park 30 Comment
  POM289344  Phacelia malvifolia Lyman Benson 1937-6-27 8392 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  POM65348  Phacelia malvifolia A. D. E. Elmer 1903-05 4784 San Mateo San Bruno Hills. Comment
  RSA184848  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH5368  Phalaris aquatica John Hunter Thomas 1983-7-7 22828 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1151607  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo e side Lower Crystal Springs Reservoir (5 mi w of Belmont); e side Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC250640  Phalaris minor J. H. Thomas 1962-5-12 9861 San Mateo Franklin Point Comment
  CAS-BOT-BC250643  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  SJSU16000  Phalaris paradoxa John Rawlings 2006-6-26 860 San Mateo Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails) 184 Comment
  JROH5855  Phalaris paradoxa Herb Dengler 1980-6-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ca. 100 yards due N. of 2nd enclosure Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  CAS-BOT-BC142185  Physocarpus capitatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon - Santa Cruz Peninsula Comment
  JROH3721  Physocarpus capitatus D. E. Breedlove 1971-5-31 19375 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3722  Physocarpus capitatus D. E. Breedlove 1971-5-31 19375 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3733  Physocarpus capitatus John Hunter Thomas 1986-5-1 23988 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing along San Francisquito Creek Comment
  UC860427  Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon 45 Comment
  LA205150  Pickeringia montana subsp. montana U. S. Grant; 1926-9-6 sn San Mateo Kings Mountain 609 Comment
  JROH2201  Pickeringia montana var. montana John H. Thomas 1974-5-29 17402 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Riders' shack Comment
  JROH2202  Pickeringia montana var. montana John H. Thomas 1975-6-5 17937 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA15202  Pickeringia montana var. montana Carl B. Wolf 83 San Mateo On the La Honda Grade. Comment
  RSA177001  Picris echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; at edge of Searsville Lake. Comment
  RSA472045  Picris echioides E. A. Purer 1933-8-13 5417 San Mateo Belmont Comment
  JROH121  Pinus radiata John Hunter Thomas 1979-9-9 19730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH122  Pinus radiata John Hunter Thomas 1987-4-23 24207 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA16839  Pinus radiata C. B. Wolf; 1934-11-9 6439 San Mateo Ano Nuevo Point to Pigeon Point 45 Comment
  UCSB23893  Pinus radiata Haller, John 1967-10-7 San Mateo Coastways Ranch near Ano Nuevo Creek, 0.5 miles inland from Ano Nuevo Bay, about 20 miles by road northwest of Santa Cruz 30 Comment
  UC1371043  Piperia elegans Theodore F. Niehaus 1968-8-14 836 San Mateo ne slopes San Bruno Mountain Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  JROH181  Pistacia atlantica John Hunter Thomas 1992-4-23 25163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287602  Plagiobothrys bracteatus Lyman Benson 1930-5-1 2063 a San Mateo Stanford University 107 Comment
  UC78213  Plagiobothrys chorisianus A. D. E. Elmer San Mateo near San Gregorio Creek Comment
  CAS-BOT-BC228117  Plagiobothrys chorisianus J. H. Thomas 1965-4-13 10564 San Mateo To the E of Broadway Exit, Burlingame Comment
  CAS-BOT-BC228120  Plagiobothrys chorisianus David D. Keck 1933-5-11 2294 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  JEPS85242  Plagiobothrys chorisianus var. chorisianus Roy E. Buck and James A. West 1985-6-3 535 San Mateo just s unnamed sw-draining creek N of Cascade Creek (ca 2.2 air km e of Whitehouse Canyon Rd-CA Hwy 1 jct, 3.8 air km e of Franklin Point); Cascade Ranch 67 Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  CHSC39820  Plantago Maibelle Williams 1929-5-10 San Mateo Moss Beach. 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
  UCD124413  Plantago elongata June McCaskill 1954-5-8 293 San Mateo Moss Beach. Comment
  JROH3107  Plantago erecta John H. Thomas 1955-5-6 5006 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UC203055  Plantago erecta A. D. E. Elmer Apr 1903 4795 San Mateo San Bruno Hills Comment
  RSA184882  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, North end. 183 Comment
  POM209656  Plantago maritima D. D. Keck 1934-7-7 2966 San Mateo Pigeon Point. Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  UC1736686  Plantago subnuda Dean W. Taylor 1991-5-20 11790 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  CAS-BOT-BC92010  Platystemon californicus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  UC1057447  Platystemon californicus G. Thomas Robbins 1937-4-11 95 San Mateo along road to Woodside near Spring Valley Lakes; near Springs Valley Lakes Comment
  POM149360  Platystemon californicus var. californicus A. D. E. Elmer 1903-06 4853 San Mateo Crystal Springs Lake. Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH5951  Plectritis macrocera John Rawlings 2017-4-9 2017 San Mateo Jasper Ridge Biological Preserve, Stanford University; path to Global Change site south of Field Station visitor parking lot. 117 Comment
  UC204163  Pleuricospora fimbriolata A. D. E. Elmer Jun 1903 5075 San Mateo on Big Basin trail, Iverson's Place Comment
  POM296628  Poa Lyman Benson 1935-5-5 6536 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  RSA187164  Poa Le Roy Abrams 1932-5-26 s.n. San Mateo Hillside Drive, Burlingame Comment
  CAS-BOT-BC255562  Poa annua John H. Thomas 1971-5-2 15868 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC255566  Poa annua Ira L. Wiggins 1975-4-17 22142 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC257691  Poa annua Peter Rubtzoff 1988-5-3 9915 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, near its crossing of the upper part of East Fork Colma Creek. Comment
  JROH5396  Poa annua John H. Thomas 1965-2-22 10551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5404  Poa annua John Hunter Thomas 1982-4-28 20869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5407  Poa annua John Hunter Thomas 1985-4-10 23514 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Whiskey Hill gate. Comment
  POM87690  Poa howellii Le Roy Abrams 1901-05 1560 San Mateo Searsville -Bear Gulch Comment
  CAS-BOT-BC247424  Poa pratensis W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of hill at Sneath's Ranch, near Millbrae Comment
  CAS-BOT-BC243122  Poa secunda subsp. secunda Abrams 1901-3-1 1016 San Mateo Menlo Park Reservoir Comment
  CAS-BOT-BC243124  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244252  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montara Point Comment
  CAS-BOT-BC244254  Poa unilateralis Walter & Irja Knight 1965-4-25 1054 San Mateo San Bruno Mountain. Owl's Canyon 228 Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SDSU7050  Pogogyne serpylloides D. F Howe 1969-6-10 San Mateo 18.5 miles north of San Mateo- Santa Cruz Co. Line on #1, San Mateo Co. Comment
  JROH1710  Polycarpon tetraphyllum var. tetraphyllum John Hunter Thomas 1983-7-7 22827 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  UC1481762  Polygonum C. C. Hall 1922-5-17 108 -7 San Mateo Montara Comment
  UCR101673  Polygonum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3741 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC414109  Polygonum aviculare subsp. aviculare George Oberlander 1949-7-24 316 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH3267  Polygonum aviculare subsp. depressum John Hunter Thomas 1992-5-26 25356 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. 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
  UC168663  Polygonum punctatum C. F. Baker 1902-10-20 1858 San Mateo Searsville; about lake Comment
  SBBG32442  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo King's Mtn 609 Comment
  CAS-BOT-BC76908  Polypodium californicum W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula - by crossing of Butano Cr. below Sinnott's Comment
  CAS-BOT-BC76806  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  UC440196  Polypodium scouleri R. L. Pendleton 1907-4-20 623 San Mateo Colma 152 Comment
  CAS-BOT-BC72109  Polypodium scouleri Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt., Cable Ravine Comment
  UCD150642  Polypodium scouleri Collector unknown 1974-5-30 28 San Mateo San Bruno Mtn. Radio Rd., before first radio station, and west of Radio Rd. below first radio station. On roadcut. 365 Comment
  UCD164005  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC233160  Polypogon interruptus P. R. Hichborn 1920-5-13 217 San Mateo Santa Cruz Peninsula. Salt marshes N of Palo Alto Comment
  CAS-BOT-BC237352  Polypogon monspeliensis John H. Thomas 1964-6-19 10422 San Mateo Ano Nuevo Island, about 0.5 mile off shore about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC237359  Polypogon monspeliensis Walter & Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountains. Point San Bruno 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
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  CAS-BOT-BC237587  Polypogon viridis George Oberlander 1949-7-10 243 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  UC1478463  Polystichum dudleyi Rimo Bacigalupi 1977-8-18 9336 San Mateo 4 mi nw Woodside (Pflueger Estate, upper reaches of West Union Creek, e base Kings Mt.) 213 Comment
  CAS-BOT-BC72226  Polystichum dudleyi Roxana S. Ferris 1920-4-24 1955 San Mateo North Fork of Peters Creek 457 Comment
  UC150382  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo w side King's Mt. Comment
  CAS-BOT-BC76601  Polystichum munitum W. R. Dudley 1894-7-7 s.n. San Mateo Santa Cruz Peninsula - Bear Gulch Road Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  CAS-BOT-BC76650  Polystichum munitum W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula - Devil's Canyon, Black Mountain Comment
  IRVC3912  Polystichum munitum P. W. Rundel 1963-6-11 1128 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA15197  Polystichum munitum C. B. Wolf 1926-10-19 74 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA30864  Polystichum munitum Roxana S. Ferris 1921-3-20 2111 San Mateo Pescadero Creek Canyon, 6 mi above Pescadero. Comment
  POM223174  Populus trichocarpa S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  JROH3361  Portulaca oleracea John Hunter Thomas 1985-8-7 23708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1099818  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Sharp Park Comment
  CAS-BOT-BC454000  Potamogeton pectinatus Malcom A. Nobs; S. Galen Smith 1949-8-25 1552 San Mateo At Sharp Park Comment
  JEPS44178  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach nr Pescadero; Pebble Beach nr Pescadero Comment
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  UC114491  Potentilla hickmanii Katharine Brandegee 1905-6-20 San Mateo near Halfmoon Bay (Moss Beach); near Halfmoon Bay, Moss Beach Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4670  Prosartes hookeri John H. Thomas 1967-4-28 12728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings Mountain Comment
  CAS-BOT-BC158178  Prunus emarginata George Oberlander 1950-5-21 956 San Mateo Southern Cahill Ridge Comment
  JROH3742  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC154503  Prunus ilicifolia Phillip Wheeler 1965-6-7 s.n. San Mateo Between Owls Canyon and Buckeye Canyon Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  UC1128403  Prunus ilicifolia G. E. Sindel 1935-8-27 339 San Mateo 1 mi w Crystal Spring Lake 121 Comment
  UC202781  Prunus ilicifolia A. D. E. Elmer July, 1903 4773 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC154649  Prunus subcordata E. A. McGregor 1909-4-20 s.n. San Mateo Los Trancos Road (near bridge at Tilt - Villa) Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
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Sep 19 2011
  RSA681426  Prunus virginiana var. demissa Annuschka Deb, Lori Hubbart 1989-5-10 208 San Mateo Santa Cruz Mtns. Skyline Blvd S of Yerba Buena Nursery (YBN) Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC357124  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 841 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  SJSU16004  Pseudognaphalium luteoalbum John Rawlings, Ken Hickman 2016-7-21 1950 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC344867  Pseudognaphalium luteoalbum Peter Rubtzoff; Roman Gankin 1975-5-21 7978 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), San Bruno Mountains. Comment
  CAS-BOT-BC357126  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357134  Pseudognaphalium luteoalbum Cherie Wetzel 1969-7-8 918 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC357505  Pseudognaphalium ramosissimum Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero Comment
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC361567  Pseudognaphalium stramineum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  SD39789  Pseudognaphalium stramineum Edith A. Purer 1933-7-27 5359 San Mateo Pigeon Point Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC85902  Pseudotsuga menziesii George Oberlander 1950-7-15 1100 San Mateo San Francisco Watershed Reserve, Cahill Ridge Comment
  CAS-BOT-BC85903  Pseudotsuga menziesii unspecified 1894-3-24 s.n. San Mateo Fl. near Pescadero Cr. Comment
  CAS-BOT-BC85905  Pseudotsuga menziesii Josephine D. Randall 1906-3-9 275 San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85916  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mt. Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  JROH124  Pseudotsuga menziesii var. menziesii John H. Thomas 1970-1-1 15492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362023  Psilocarphus tenellus Peter H. Raven 1950-4-16 1804 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  CAS-BOT-BC362017  Psilocarphus tenellus R. S. Ferris 1925-5-1 s.n. San Mateo Selah Chamberlain Residence, Woodside Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC362030  Psilocarphus tenellus Walter Knight; Irja Knight 1965-3-21 960 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  SJSU10067  Psilocarphus tenellus R. D. Hennessey 1964-4-25 57 San Mateo Pilarcitos Cr near outlet to ocean Comment
  JEPS8435  Pterostegia drymarioides unknown 1925-5-28 11 San Mateo Salada Comment
  JROH3287  Pterostegia drymarioides Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  JROH2535  Quercus X jolonensis W. R. Dudley 1906-1-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road to McDonough Ranch Comment
  CAS-BOT-BC61707  Quercus agrifolia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Buckeye Canyon, near ridge, San Bruno Mountain Comment
  HSC23978  Quercus agrifolia Mary Katherine Wicksten 1971-8-20 135 San Mateo Huddart Park, Oak Area Comment
  UCD23291  Quercus agrifolia Alan T. Whittemore 1976-5-29 103 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  SEINET12034175  Quercus agrifolia Unknown 1929-1 7299 San Mateo Kings Mtn Comment
  UCD45583  Quercus chrysolepis John M. Tucker 1941-4-6 209 San Mateo On ridge north of Finny Creek, directly inland from Ano Nuevo Pt., San Mateo County, California. Comment
  JROH2468  Quercus douglasii Elmer I. Applegate 1895-5-11 644 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  CAS-BOT-BC94272  Quercus durata Ned Cahill 1975-1-18 399 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC94273  Quercus durata Lewis S. Rose 1970-7-21 70074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  POM224196  Quercus durata Annetta Carter 1934-10-13 728 San Mateo Long Branch of Isabel Creek, half mile above jct with Isabel Creek, Mt Hamilton Range. 549 Comment
  RSA118985  Quercus durata Marcel Reeves 1954-4-23 61 San Mateo Jasper Ridge above Searsville Lake. 168 Comment
  RSA63117  Quercus durata L. S. Rose 1950-5-20 50136 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  JROH2488  Quercus durata var. durata John H. Thomas 1974-8-3 17502 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  CAS-BOT-BC105396  Quercus kelloggii Le Roy Abrams 1898-3-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC105399  Quercus kelloggii J. I. McMurphy 1904-3-7 48 San Mateo Santa Cruz Mountain Peninsula. Foothills near Woodside Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2504  Quercus kelloggii John Hunter Thomas 1981-2-14 20218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223170  Quercus kelloggii S. S. Berry 1909-3-13 s.n. San Mateo Road below Woodside. 91 Comment
  RSA152240  Quercus kelloggii I. L. Wiggins 1925-04 1664 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  RSA571671  Quercus kelloggii D. D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  SEINET262925  Quercus kelloggii R. A. Kocher 1908-3-28 e 7 San Mateo Santa Cruz Mountain Peninsula road to Kings Mountain from Woodside 366 Comment
  UC1135868  Quercus wislizeni T. Tyrrell 1928-9-26 13 San Mateo Pescadero Creek Canyon Santa Cruz Quad. 91 Comment
  CAS-BOT-BC134792  Quercus wislizeni J. H. Thomas 1949-11-5 1227 San Mateo Near airstrip along Butano Fire Break 518 Comment
  RSA18093  Quercus wislizeni var. wislizeni Carl B. Wolf 1929-4-24 3655 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  CAS-BOT-BC362547  Rafinesquia californica Fred Hemphill 1973-5-14 824 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC389716  Ranunculus Sharon Rogers 1966-4-23 s.n. San Mateo Field east of Canada Road, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC379190  Ranunculus aquatilis var. aquatilis W. R. Dudley 1906-6-10 s.n. San Mateo pond by North Cahill Ridge Road Comment
  POM268421  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo S San Francisco. 91 Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  SEINET5569721  Ranunculus californicus H. S. Gentry 1931-1 22 San Mateo Collected on slope W of Pacific Bone Coal Fertilizer Co. in South San Francisco. 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
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378536  Ranunculus californicus var. californicus Daniel Cohen 1953-4-11 12 San Mateo grassy meadow on north shore of Searsville Lake Comment
  CAS-BOT-BC378539  Ranunculus californicus var. californicus John H. Thomas 1971-5-2 15828 San Mateo serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads, about 4 mi SW of center of Redwood City 305 Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  JROH3486  Ranunculus hebecarpus John Hunter Thomas 1985-4-22 23547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176765  Ranunculus hebecarpus John H. Thomas 1963-4-13 10033 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  RSA14966  Ranunculus hebecarpus L. S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  CAS-BOT-BC83428  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  JEPS85713  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  SBBG33475  Ranunculus lobbii A. D. E. Elmer -Apr-1903 4734 San Mateo Alpine School House Comment
  POM177526  Ranunculus orthorhynchus var. bloomeri L. R. Abrams 1909-4-27 s.n. San Mateo marsh land betw Woodside and Crystal Lake Comment
  UCD97311  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JEPS85565  Rhamnus californica Craig Dremann 1986-8-30 325 San Mateo near San Gregorio (Stage road, 450 ft s of intersection of Seaside School road, on e side of school) Comment
  POM283034  Rhamnus californica Lyman Benson 1937-7-8 8447 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  POM283044  Rhamnus californica Lyman Benson 1928-12-15 836 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  RSA222805  Rhamnus californica S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Grade 259 Comment
  UC1121739  Rhamnus californica C. M. Belshaw 1935-1-25 1458 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC55887  Rhamnus crocea J. I. McMurphy 1906-4-4 55 San Mateo Los Trancos Creek, Santa Cruz Mts. 182 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
  RSA7729  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Searsville Lake Comment
  RSA7771  Rhamnus tomentella subsp. tomentella John W. Gillespie 1925-8-9 191 San Mateo Searsville road Comment
  RSA7859  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1473 San Mateo 1/2 way up Kings Mt Comment
  CAS-BOT-BC305855  Rhodanthe chlorocephala subsp. rosea Elizabeth McClintock; Paul Reeberg 1988-10-3 s.n. San Mateo San Bruno Mountains. On north-facing slope of Bitter Cherry Ridge 167 Comment
  CAS-BOT-BC56667  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  RSA112356  Rhododendron occidentale var. occidentale W. R. Dudley 1895-6-6 San Mateo Pescadero Creek Comment
  JROH182  Rhus integrifolia Toni Corelli 2007-3-7 332 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Road F where it joins with Trail 17 182 Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JROH2632  Ribes aureum var. gracillimum D. E. Breedlove 1971-5-31 19354 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC93001  Ribes californicum var. californicum Walter Knight; Irja Knight 1965-3-21 963 San Mateo San Bruno Mountain. Near road at summit at head of Buckeye Canyon. 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
  OBI14065  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 122 Comment
  RSA0025026  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake. 122 Comment
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC212815  Ribes menziesii W. R. Dudley 1904-3-3 s.n. San Mateo Santa Cruz Mts Comment
  CAS-BOT-BC212841  Ribes menziesii J. H. Thomas 1949-3-29 188 San Mateo King's Mountain Comment
  SBBG33468  Ribes menziesii A. D. E. Elmer -Apr-1903 4496 San Mateo Portola Comment
  UC11716  Ribes menziesii J. Burtt Davy Jun 21 1893-Jun 23 1893 1148 San Mateo Pilarcitos Lake and Canyon Comment
  RSA0021760  Ribes menziesii var. leptosmum W. R. Dudley 1904-3-27 s.n. San Mateo Devils Canyon, Mill Cr. Santa Cruz Mountains. [County not listed, but probably San Mateo] 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-BC144609  Ribes sanguineum var. glutinosum Le Roy Abrams 1902-4-13 2333 San Mateo Crystal Springs Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  CAS-BOT-BC144649  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts 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
  RSA0019104  Ribes sanguineum var. glutinosum L. S. Rose 1947-3-11 47027 San Mateo Kings Mountain. 610 Comment
  RSA176748  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  RSA0110964  Romanzoffia californica L. R. Abrams 1915-3-23 5568 San Mateo Crystal Springs - San Mateo Road on rocky bluff. Comment
  CHSC59705  Rorippa nasturtium-aquaticum Jan M. Karaz 1979-5-28 82 San Mateo 2.5 mi west of Hwy 280 toward San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. 3 Comment
  SEINET5570005  Rorippa nasturtium-aquaticum H. S. Gentry 1931-1 100 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC75025  Rorippa palustris var. hispida C. F. Baker 1902-10-20 1856 San Mateo Searsville. Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  POM222902  Rosa gymnocarpa S. S. Berry 1909-4-3 s.n. San Mateo Bear Creek Canyon Road 335 Comment
  JROH3765  Rosa laevigata Carol Zabel 2004-5-19 51 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 30 feet north of main gate on Sand Hill Road. Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  CAS-BOT-BC152866  Rubus parviflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo Columbine Gulch - San Bruno Mountain Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  RSA152234  Rubus parviflorus var. velutinus I. L. Wiggins 1925-04 1658 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  CAS-BOT-BC156771  Rubus spectabilis A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  CAS-BOT-BC158710  Rubus ulmifolius Margaret Bellue 1945-8-23 s.n. San Mateo Along creek on property in Redwood City. Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC157102  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157106  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157109  Rubus ursinus John Thomas Howell 1938-6-4 13887 San Mateo Burlingame Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH3778  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC861859  Rubus ursinus R. A. Kocher 1908-4-25 San Mateo near Stanford University (San Francisquito Creek above Rock Quarry); Santa Cruz Mountain Peninsula, San Francisquito Creek 121 Comment
  CAS-BOT-BC157085  Rubus ursinus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo Below and east of Nike station Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3291  Rumex acetosella John H. Thomas 1974-5-19 17384 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3292  Rumex acetosella John H. Thomas 1975-4-19 17799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA264999  Rumex acetosella I. L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  CAS-BOT-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  CAS-BOT-BC422079  Rumex acetosella Daniel Cohen 1953-5-9 85 San Mateo La Honda Road near Skyline Drive. Comment
  RSA318548  Rumex acetosella Robert A. Norris 1984-5-9 4728 San Mateo Olivet Memorial Park throughway, Colma. Comment
  JROH3301  Rumex conglomeratus John Hunter Thomas 1982-6-7 21030 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3325  Rumex conglomeratus John Hunter Thomas 1977-6-16 18800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421575  Rumex crassus Lewis S. Rose 1954-10-4 54134 San Mateo Montara Comment
  CAS-BOT-BC433365  Rumex crispus Margaret A. Barry 1938-6-22 169 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC433368  Rumex crispus J. H. Thomas 1949-4-2 222 A San Mateo Palo Alto Yacht Club. Comment
  SD39771  Rumex salicifolius Edith A. Purer 1933-7-27 5373 San Mateo Partially stabilized sand dunes, two miles south of Pigeon Point Comment
  UC175931  Rumex salicifolius var. crassus W. A. Setchell 1913-10-19 San Mateo Farallone City Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  UCD164248  Rumex transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH2215  Rupertia physodes John H. Thomas 1975-6-5 17945 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  UC311105  Rupertia physodes A. D. E. Elmer June, 1903 4270 San Mateo Crystal Springs Lake Comment
  UC279590  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  JROH1720  Sagina apetala John Hunter Thomas 1978-4-25 19145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1191408  Salicornia europaea Malcolm A. Nobs and S. Galen Smith 1949-8-27 1624 San Mateo e of Redwood City Comment
  SEINET6901955  Salicornia virginica Robert A. Evers, Clara V. Evers 1975-8-24 115026 San Mateo Trailer Villa, Redwood City. Comment
  SJSU7513  Salix exigua Lewis S. Rose 1965-3-8 San Mateo Searsville Lake 121 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-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3863  Salix lasiolepis John H. Thomas 1967-3-26 12415 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3864  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  JROH3867  Salix lasiolepis Toni Corelli 2003-2-6 255 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of lake below Searsville Lab 106 Comment
  LA208768  Salix lasiolepis David D. Keck; 1932-1-24 1356 San Mateo Portola 150.0 Comment
  RSA249478  Salix lasiolepis John F. Emmel 1972-6-4 404 San Mateo Large canyon bottom 1.1 air miles NW of 1314' summit. Along Guadalupe Canyon Parkway. San Bruno Mtns. 107 Comment
  CAS-BOT-BC124362  Salix lasiolepis var. lasiolepis David D. Keck 1932-1-29 1358 San Mateo Colma Creek, at Cypress Lawn Cemetery, northern San Mateo County Comment
  CAS-BOT-BC124492  Salix lasiolepis var. lasiolepis Ned Cahill 1974-7-14 358 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC128243  Salix lucida James McMurphy 1906-3-9 s.n. San Mateo By water trough, Kings Mountain Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  CAS-BOT-BC126490  Salix sitchensis A. D. E. Elmer 1903-4-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126510  Salix sitchensis E. A. McGregor 1908-3-28 s.n. San Mateo [King's] Kings Mt. 365 Comment
  CAS-BOT-BC126513  Salix sitchensis W. R. Dudley 1903-6-6 s.n. San Mateo Near mouth of Peters Creek below Iverson's Comment
  POM196587  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek. Santa Cruz Peninsula. Comment
  UCD99304  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo w. end of Dumbarton Bridge, Menlo Park. Comment
  SEINET7081588  Salvia columbariae A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. Coordinate Datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  UC75017  Salvia columbariae C. F. Baker 1902-4-6 546 San Mateo Crystal Springs Lake Comment
  RSA681667  Salvia mellifera Annuschka Deb 1989-4-14 101 San Mateo YBN Demonstration Garden Comment
  SEINET946766  Salvia mexicana var. major Betsy Clebsch 1983-1 s.n. San Mateo Planted in garden on Big Swing Comment
  POM63429  Salvia spathacea A. D. E. Elmer 1903-05 4440 San Mateo Colma. Comment
  UC138837  Salvia spathacea C. F. Baker 1903-4-6 1878 San Mateo San Bruno Hills San Francisco 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
  UC203513  Sambucus mexicana A. D. E. Elmer July, 1903 4689 San Mateo Portola Comment
  JROH1669  Sambucus nigra subsp. caerulea John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236464  Sambucus racemosa subsp. racemosa Adaline Christensen 1956-5-1 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek 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
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  UC579535  Sanicula arctopoides H. S. Yates 1935-2-3 5102 San Mateo 0.5 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC223327  Sanicula bipinnatifida John H. Thomas 1958-3-19 7067 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC223321  Sanicula bipinnatifida George Oberlander 1949-4-17 99 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  UCD127932  Sanicula bipinnatifida R. E. Dengler 1960-4-14 33 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  HSC24030  Sanicula crassicaulis Mary Katherine Wicksten 1971-6-17 72 San Mateo Huddart Park, along Chickadee Trail Comment
  RSA407366  Sanicula crassicaulis Lyman Benson 1935-5-5 6522 San Mateo Lake Searsville 152 Comment
  UCD164334  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS85232  Sanicula hoffmannii Roy E. Buck, James A. West, Roger Raiche 1984-7-29 510 San Mateo on nw-facing slope overlooking Cascade Ck. (e of ranch headquarters, ca 0.8 air km ne of CA Hwy 1, 3.3 air km ne of Point Ano Nuevo); Cascade Ranch 152 Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  CAS-BOT-BC210157  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  RSA14775  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  CAS-BOT-BC111781  Schoenoplectus pungens var. badius Ira L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  UC75027  Scirpus cernuus Dr. E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  UC840923  Scirpus maritimus Alice Eastwood 1915-6-13 4714 San Mateo Granada Comment
  UCD141255  Scirpus microcarpus Malcolm A. Nobs; S. Galen Smith 1949-8-25 1559 San Mateo Sharp Park. Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  CAS-BOT-BC519003  Scoliopus bigelovii L. R. Abrams 1902-3-16 2283 San Mateo Kings Mountain Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  SEINET12051468  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UCSC007779  Scrophularia californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC59055  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  CAS-BOT-BC59053  Sedum spathulifolium John F. Emmel 1970-5-2 269 San Mateo South end of Milagra ridge, along and north of Sharp Park Road. 175 Comment
  CAS-BOT-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  RSA0074737  Sedum spathulifolium R. F. Thorne, P. C. Everett 1963-6-9 32245 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC327388  Senecio aphanactis Fred Hemphill 1973-4-22 798 San Mateo North of Malabar Road adn Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC363383  Senecio aronicoides John H. Thomas 1961-5-7 9308 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27357  Senecio aronicoides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7617 a San Mateo just e KRON television tower (on lateral ridge below and se of end of paved ridge-top, on Guadalupe Valley side of summit of San Bruno Mountain); San Bruno Mountain 304 Comment
  JROH1218  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  CDA7644  Senecio elegans G. D. Barbe 1977-11-17 2354 San Mateo Thornton Beach State Park, Daly City. 0 Comment
  RSA152140  Senecio glomeratus John H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC363759  Senecio integerrimus L. Roush; G. Kimber 1918-5-7 s.n. San Mateo Sandstone Quarry Comment
  CAS-BOT-BC364633  Senecio vulgaris Fred Hemphill 1973-4-8 625 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1228  Senecio vulgaris John Hunter Thomas 1982-11-6 21197 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC80294  Sequoia sempervirens William R. Dudley 1894-2-25 s.n. San Mateo near Summit Springs Comment
  UCR19335  Sequoia sempervirens Bernice Bowers 1977-4-4 s.n. San Mateo San Francisco Bay Area, Kings Mtn. Road, 1 mi south of Huddart County Park, 2 mi north of Woodside 549 Comment
  UCSB9574  Sequoia sempervirens Haller, John 1950-4-24 San Mateo Skyline drive, junction with woodside, La Honda Road 609 Comment
  SEINET10612347  Sequoia sempervirens H. Mount 1908-3-28 Mount s.n. 1908 San Mateo Kings Mountain, vicinity of woodside. From the Herbarium of Leland Stanford Jr. University. Comment
  UCR101676  Sherardia arvensis George K. Helmkamp, E. A. Helmkamp 1998-5-16 3750 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 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
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  UCR119543  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo San Francisco Bay Region, Emerald Lake, west of Redwood City 84 Comment
  RSA8253  Sidalcea diploscypha Elmer I. Applegate 1895-5-11 56 San Mateo Hills above Stanford University. [county not specified] Comment
Read comments
Dec 13 2015
  CDA33789  Sidalcea malviflora D. G. Kelch 2011-3-13 11 .049 San Mateo Pacifica. Along sea bluffs Comment
  UC1589119  Sidalcea malviflora W. Roderick 1961-1-15 61 .012 San Mateo 2.6 mi n Kings Mt. Rd. (nw of Woodside, Cahil Ridge on Skyline Blvd., Highway 5); nw of Woodside, Cahil Ridge on Skyline Blvd Comment
  UCD116775  Sidalcea malviflora R. E. Dengler 1960-4-12 19 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  UCSB18185  Sidalcea malviflora Muirhead, M. 1964-4-17 San Mateo On Crocker Estate, Hillsborough 91 Comment
  UC871437  Sidalcea malviflora subsp. laciniata Alice Eastwood 1912-6-10 329 San Mateo Crystal Springs Comment
  UC189013  Sidalcea malviflora subsp. malviflora E. L. Greene 1887-6-11 San Mateo Comment
  UCR121568  Silene gallica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4994 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC386850  Silene gallica Javier Penalosa 1963-3-9 2696 San Mateo San Bruno Mountain. Ravine 1/2 mi. east of 1314ft. summit. 304 Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM286434  Silene gallica Lyman Benson 1931-4-26 2762 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  CAS-BOT-BC389194  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  CAS-BOT-BC389900  Silene verecunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. North side of ridge road adjacent to Buckeye Canyon Comment
  CAS-BOT-BC364855  Silybum marianum W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  UCR129777  Smilacina stellata var. sessilifolia C. B. Wolf 1927-4-3 00250 San Mateo Santa Cruz Mtns., 1 mile above La Honda 183 Comment
  UCD129025  Solanum Ed Johnson 1973-8-15 s.n. San Mateo On the perimeter of an orchard. Comment
  SJSU7787  Solanum americanum C. A. Staicer 1976-9-25 San Mateo San Francisquito Cr near El Camino Real, Menlo Park Comment
  UC1125189  Solanum douglasii H. S. Yates 1935-2-3 5007 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  UC1537407  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo n of Sharpe Park 15 Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC127293  Solanum furcatum Katharine Brandegee 1908-3-8 San Mateo San Pedro Point Comment
  UC1332473  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  RSA202892  Solanum furcatum G. Ledyard Stebbins, E. F. Paddock 1940-9-7 101 San Mateo At Junction of three upper forks of San Pedro Creek, about 100 foot countour level and a mile from the seashore. Comment
  SEINET12315683  Solanum furcatum M. T. Doutt 1931-1 187 San Mateo Ano Nuevo Pt Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC676731  Solanum umbelliferum Reed C. Rollins 1941-3-16 2944 San Mateo about 6 mi w of Woodside (e slope of Kings Mountain); Santa Cruz Mountains, Kings Mountain Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  RSA133955  Solidago canadensis subsp. elongata John H. Thomas 1959-8-16 8065 San Mateo About two miles southwest of Pescadero. 61 Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  JEPS89408  Solidago spathulata Dean W. Taylor 1990-8-30 11535 San Mateo Santa Cruz Mountains, San Bruno Mountain, along the access road on the main ridge 50 feet to the e of locked gate at e end of parking lot near radio tower area San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain Comment
  UCD18352  Solidago spathulata J. Skoss 1948-8-22 121 San Mateo San Vicente Canyon. Comment
  JROH1236  Solidago velutina subsp. californica John Hunter Thomas 1989-6-17 24779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  JROH1253  Soliva sessilis John Hunter Thomas 1989-5-11 24736 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195396  Soliva sessilis John H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  CAS-BOT-BC365923  Soliva sessilis Le Roy Abrams 1902-5-4 2428 San Mateo Woodside Comment
  CAS-BOT-BC365930  Soliva sessilis Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountain. Randolph Ave., South San Francisco Comment
  CAS-BOT-BC365933  Soliva sessilis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Slope at Flower Garden adjacent to April Brook Comment
  JROH1248  Soliva sessilis John Hunter Thomas 1984-4-12 23292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC36522  Sonchus asper J. Burtt Davy 1893-6-1 725 San Mateo Belmont Comment
  POM292654  Sonchus oleraceus Lyman Benson 1928-12-15 837 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  UCSB18413  Sonchus oleraceus Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake, Sawyer Camp Road, about 2.7 miles off Skyline Blvd., entrance off Millbrae Ave. 106 Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  JEPS13123  Sparganium eurycarpum var. eurycarpum V. F. Hesse 1955-10-10 1720 San Mateo 4 mi from Pescadero (pond near Butano road) 60 Comment
  CAS-BOT-BC236625  Spartina foliosa Helen L. Dale 1919-10-1 s.n. San Mateo Salt marshes below Palo Alto, Santa Cruz Mountain Peninsula Comment
  SEINET10602935  Spartina foliosa Delzie Demaree 1933-9-17 Demaree 10528 San Mateo San Francisco Bay, Belmont Common along margins of salt marshes 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
  CAS-BOT-BC390010  Spergula arvensis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UCD99161  Spergula arvensis W. A. Harvey 1948-6-28 1694 San Mateo 1 mile south of town of Half Moon Bay. Comment
  JROH1769  Spergularia John Hunter Thomas 1988-5-25 24487 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SJSU2302  Spergularia macrotheca C. W. Sharsmith 1950-4-16 6631 San Mateo near Pescadero Point near Pescadero Comment
  CAS-BOT-BC390463  Spergularia macrotheca var. macrotheca Anne Constant 1955-5-28 197 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390922  Spergularia marina Walter Knight; Irja Knight 1964-9-2 984 San Mateo San Bruno Mountain. Beach at Point San Bruno Comment
  CAS-BOT-BC390698  Spergularia rubra Robert Robertson 1954-5-1 117 San Mateo At Pescadero Beach 9 Comment
  CAS-BOT-BC390701  Spergularia rubra Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  CAS-BOT-BC173613  Spiranthes romanzoffiana Peter Rubtzoff 1978-8-17 9258 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC220977  Stachys B. Carlson 1981-5-10 042 San Mateo Dead end of Native Sons road, off Pescadero Road 152 Comment
  POM299450  Stachys ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont. 3 Comment
  SD38742  Stachys ajugoides var. ajugoides Edith A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  UC1176932  Stachys ajugoides var. rigida Peter H. Raven 1950-5-5 2043 San Mateo Moss Beach 15 Comment
  JROH2897  Stachys bullata John H. Thomas 1967-5-31 12932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181217  Stachys bullata John H. Thomas 1965-11-26 11455 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  UCLA71403  Stachys bullata Ira L. Wiggins 1929-7-4 3783 San Mateo 4 mi w La Honda (on hill road to Pescadero) Comment
  POM284551  Stachys bullata Lyman Benson 1930-5-26 2136 San Mateo Stanford University. Lake Searsville. 152 Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC164655  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction; East Fork Colma Creek Canyon, near upper rim. Comment
  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
  CAS-BOT-BC394061  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo San Carlos; Chaparral area north of Malabar Rd. and Melendy Dr. 243 Comment
  JROH1789  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC398985  Stellaria nitens Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch Comment
  CAS-BOT-BC375210  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Pt. San Pedro Comment
  RSA223602  Stephanomeria virgata Elizabeth McClintock, Walter Knight, I. Knight 1967-8-1 s.n. San Mateo S side of Ridge Road, about 200 yards S of Parking Lot. San Bruno Mtns. Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5330  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  SBBG35017  Stylomecon heterophylla A. D. E. Elmer -May-1903 4921 San Mateo San Pedro [Point?] Comment
  SEINET8060318  Symphoricarpos albus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mountain. Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. Comment
  RSA177008  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  RSA770503  Symphoricarpos albus var. laevigatus Lyman Benson 1930-5-3 2091 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  CAS-BOT-BC99063  Symphyotrichum chilense Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Dairy Ravine across road from KQED radio tower Comment
  UC1119620  Symphyotrichum chilense A. E. Wieslander 1935-2-3 506 San Mateo .5 me se of Pigeon Pt.; Santa Cruz Quad. 30 Comment
  UC1192068  Symphyotrichum chilense Malcolm A. Nobs and S. Galen Smith 1949-8-25 1571 San Mateo s of Rockaway Beach Comment
  UC87085  Symphyotrichum chilense C. F. Baker 1902-9-2 1550 San Mateo Crystal Springs Lake 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-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99084  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  JEPS49084  Symphyotrichum subspicatum Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point Comment
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Feb 2 2012
  CAS-BOT-BC98361  Symphyotrichum subulatum var. parviflorum W. Knight; I. Knight 1966-10-14 2037 San Mateo San Bruno Mountain - Crocker Hills marsh between Geneva St. and Guadalupe Parkway Comment
  JROH367  Tauschia hartwegii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope about 100 feet above the east margin of Searsville Lake, and 300 feet south of the dam Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  UC1736327  Tellima grandiflora Dean William Taylor 1969-4-13 73 San Mateo 5 mi E of San Gregorio; Highway 85 152 Comment
  CAS-BOT-BC438268  Tetragonia tetragonoides Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Point San Bruno. Comment
  RSA176540  Tetragonia tetragonoides John H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Point Lighthouse Comment
  UCR51661  Thalictrum fendleri 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
  JROH3515  Thalictrum fendleri var. polycarpum John Hunter Thomas 1991-4-11 24987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC66660  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66664  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66676  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 18 San Mateo On Coal Mine Ridge. Comment
  JROH1606  Thysanocarpus curvipes John Hunter Thomas 1986-4-5 23927 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  JROH377  Torilis arvensis John Hunter Thomas 1989-6-13 24770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81495  Torreya californica Ira L. Wiggins 1945-5-5 11160 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5898  Toxicodendron diversilobum M. Ray 1982-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; trailside south of Searsville Lake Comment
  CAS-BOT-BC377135  Tragopogon porrifolius J. H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore highway and Main Street. Redwood City Comment
  CHSC1405  Trientalis latifolia J. Baynes 1929-5-20 San Mateo Near Moss Beach. Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128507  Trientalis latifolia L. R. Abrams 1902-5-20 2468 San Mateo Kings Mountain Comment
  POM131281  Trientalis latifolia C. F. Baker 1902-3-30 427 San Mateo Crystal Springs Lake Comment
  RSA10319  Trientalis latifolia H. A. Barker 1929-5-1 544 San Mateo Kings Mt Comment
  RSA116715  Trientalis latifolia W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula, in redwoods near Pescadero creek Comment
  POM278023  Trifolium albopurpureum Lyman D. Benson 1935-5-5 6527 San Mateo Lake Searsville. 152 Comment
  JROH2245  Trifolium bifidum var. bifidum John Hunter Thomas 1985-5-2 23584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2250  Trifolium bifidum var. decipiens John H. Thomas 1958-5-10 7144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC631333  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UCSC005498  Trifolium bifidum var. decipiens Randall Morgan 1995-6-22 2795 San Mateo Ridge west of Waterman Creek Comment
  JROH2261  Trifolium depauperatum var. amplectens John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2262  Trifolium depauperatum var. amplectens John Hunter Thomas 1981-4-21 20463 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39833  Trifolium fucatum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH2282  Trifolium fucatum Robert Robertson 1954-4-23 100 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH2297  Trifolium fucatum John Hunter Thomas 1981-4-29 20511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2303  Trifolium fucatum John Hunter Thomas 1986-4-9 23928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2304  Trifolium fucatum John Hunter Thomas 1986-4-30 23985 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2307  Trifolium fucatum John Hunter Thomas 1990-4-14 24807 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  JROH5588  Trifolium gracilentum John H. Thomas 1969-4-12 14880 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  HSC82087  Trifolium hirtum Thomas W. Nelson, Jane P. Nelson 1980-5-3 5132 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  UCD111197  Trifolium hirtum John Thomas Howell 1966-5-8 41530 San Mateo At junction of Millbrae Ave. and Bayshore Freeway, Millbrae. Comment
  SJSU15437  Trifolium microcephalum Toni Corelli 2010-5-13 606 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  JROH5840  Trifolium microcephalum Monika Bjorkman 1956-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast of Escobar Gate Comment
  RSA46809  Trifolium microcephalum Doris K. Kildale 1930-6-19 8009 San Mateo 1.5 miles north of La Honda. Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC204263  Trifolium microdon A. D. E. Elmer June 1903 4628 San Mateo Portola Comment
  UCSC006035  Trifolium microdon Randall Morgan 1996-5-24 2965 San Mateo Pacifica, San Pedro Mtn. Comment
  UCD109275  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  JROH2367  Trifolium subterraneum John Hunter Thomas 1990-4-7 24802 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2370  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo Jasper Ridge Biological Preserve, Stanford University; so. west end of Jasper Ridge 152 Comment
  JROH2387  Trifolium variegatum John Hunter Thomas 1981-4-23 20470 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2391  Trifolium variegatum John Hunter Thomas 1992-4-23 25155 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock and along trail to redwoods Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  JROH2392  Trifolium willdenovii G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1130146  Trifolium willdenovii H. S. Yates 1935-5-8 5202 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  POM126702  Trifolium willdenovii R. L. Pendleton 1907-4-20 609 San Mateo Lake Merced. 30 Comment
  SBBG33496  Trifolium willdenovii A. D. E. Elmer -May-1903 San Mateo Belmont Comment
  CHSC25136  Trillium chloropetalum R. N. Bowman 1971-4-5 4 San Mateo Ca. 1.6 mi. E. of Hwy. 1 on Gazos Creek rd., ca. 5 yards down wooded embankment along S. side of rd. 18 Comment
  UC1134685  Trillium chloropetalum H. S. Yates 1935-2-3 5001 San Mateo 2 mi. s. San Gregorio; Santa Cruz Quad. Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  JEPS55673  Trillium ovatum W. Roderick 1961-1-15 San Mateo s.e. Half Moon Bay Comment
  POM169961  Trillium ovatum C. F. Baker 1902-3-18 329 San Mateo West side Kings Mountain. Comment
  UC765421  Trillium ovatum R. F. Hoover 1939-3-3 3895 San Mateo above Portola (on La Honda Rd.) Comment
  RSA15261  Trillium ovatum Carl B. Wolf 1927-2-26 225 San Mateo Under redwoods on a steep bank on the La Honda Grade. Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  SD60189  Triphysaria floribunda I. L. Wiggins, R. S. Ferris 1932-4-7 8038 A San Mateo Hills above Colma Comment
  UC1303092  Triphysaria floribunda Roxana S. Ferris and I. L. Wiggins 1932-4-7 8038 A San Mateo hills above Colma Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH4137  Triphysaria pusilla John H. Thomas 1968-3-17 14187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5467  Trisetum canescens John Rawlings 2008-5-4 1038 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, creekside, a few meters east of first redwood grove. 81 Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  POM276953  Triteleia hyacinthina Lyman Benson 1930-5-3 2111 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  RSA18458  Triteleia laxa Carl B. Wolf 1927-6-29 549 San Mateo South of Pebble Beach near Pescadero Comment
  UC1133960  Triteleia laxa N. Carlson 1935-6-20 71 San Mateo between Slate and Oil Creek Santa Cruz Quad. 60 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
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  SJSU2612  Ulex europaeus D. M. Dobrinen 1966-4-6 27 San Mateo N end Crystal Springs Lakes Comment
  CAS-BOT-BC213099  Ulex europaeus Roxana S. Ferris 1921-3-21 2119 San Mateo In ravine at edge of ocean; New Year's Point Comment
  JEPS40102  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 182 Comment
  POM177516  Umbellularia californica Harry A. Dutton 1900-2-18 s.n. San Mateo Woodside. Comment
  UC36687  Uropappus lindleyi Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  JROH4237  Urtica dioica subsp. holosericea D. E. Breedlove 1971-5-31 19379 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC404024  Urtica dioica subsp. holosericea George Oberlander 1950-4-16 696 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC404026  Urtica dioica subsp. holosericea Saichi Kawahara 1968-7-29 463 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 Comment
  POM204437  Urtica dioica subsp. holosericea E. C. Sutliffe 1933-7-12 s.n. San Mateo Between the Skyline Blvd and La Honda on the Alpine Creek Road. Comment
  CAS-BOT-BC199360  Vaccinium ovatum J. I. McMurphy 1906-5-20 79 San Mateo Kings Mt., Santa Cruz Mts. 457 Comment
  CAS-BOT-BC199371  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  POM222793  Vaccinium ovatum S. S. Berry 1909-3-13 s.n. San Mateo San Mateo Comment
  RSA15307  Vaccinium ovatum C. B. Wolf 1927-4-3 277 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  POM177507  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo By road in Redwoods this side of Iverson s near Peter s Creek. Comment
  JROH4256  Verbena bonariensis Carol Zabel 2006-8-21 63 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA40703  Verbena lasiostachys var. lasiostachys C. M. Sill 1961-7-1 s.n. San Mateo Laurel School, Menlo Park. 0 Comment
  RSA82516  Verbena robusta J. T. Howell 1939-6-16 14745 San Mateo Crystal Springs Lake. Comment
  POM283828  Veronica persica Lyman D. Benson 1935-5-5 6518 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  RSA187288  Veronica persica John H. Thomas 1964-4-11 10308 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  SEINET5578159  Vicia americana H. S. Gentry 1931-1 11 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  POM17349  Vicia americana var. americana C. F. Baker 1903-4-6 1972 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  SD2652  Vicia americana var. truncata Unknown Jun 1925 San Mateo Near La Honda Comment
  POM16746  Vicia gigantea A. D. E. Elmer 1903-06 4445 San Mateo Pescadero Comment
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UC729850  Vicia villosa subsp. varia Carl B. Wolf 1929-5-27 3737 San Mateo back of Stanford University (Los Trancos Creek); Los Trancos Creek Comment
  CAS-BOT-BC264042  Viola adunca Walter & Irja Knight 1965-3-28 978 San Mateo San Bruno Mountain. At Flower Garden adjacent to April Brook Comment
  CAS-BOT-BC264049  Viola adunca Robert Robertson 1954-5-1 121 San Mateo At Pebble Beach 9 Comment
  UC483497  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  CAS-BOT-BC536569  Viola glabella Herbert L. Mason 1927-4-23 3672 San Mateo La Honda Comment
  RSA10996  Viola glabella Carl B. Wolf 1928-3-14 1533 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  POM286591  Viola ocellata Lyman D. Benson 1931-2-28 2617 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo King's Mountain Road Comment
  UC581538  Viola ocellata Herbert L. Mason 1927-4-23 3696 San Mateo Pescadero Creek near Bloomquists Mill; Pescadero Creek Comment
  UC499241  Viola pedunculata Ivar Tidestrom 1894-3-29 San Mateo Comment
  POM135245  Viola sempervirens A. D. E. Elmer 1900-04 2100 San Mateo Kings Mtn. Comment
  CAS-BOT-BC183612  Vulpia bromoides Peter Rubtzoff 1978-5-18 9168 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  RSA790195  Vulpia bromoides Peter Rubtzoff 1975-5-21 7967 San Mateo San Bruno Mountain. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10595128  Vulpia bromoides Delzie Demaree 1932-5-22 Demaree 9179 San Mateo Gov. Rolf Estate. Hills. Comment