Search Results — 2000 specimen records retrieved (1353 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41411  Abronia latifolia Edith A. Purer 1966-7-27 5381 San Mateo Two miles South of Pigeon Point Comment
  SD41440  Abronia umbellata Edith A. Purer 1934-8-14 5915 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC233754  Abronia umbellata W. R. Dudley 1891-7-5 2 San Mateo Pescadero, Santa Cruz Peninsula Comment
  RSA0025967  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada. 3 Comment
  CAS-BOT-BC451134  Acaena pinnatifida var. californica Dr. E. L. Greene 1902-5-1 688 San Mateo Crystal Springs Lake; Pacific Coast Comment
  UC186703  Acaena pinnatifida var. californica Michener and Bioletti May, 1892 San Mateo Cemeteries Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  UC1397619  Acanthomintha duttonii H. Dutton and Miss H. Walker May 26 1915-May 29 1915 321 San Mateo near Menlo Golf Club Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  RSA0076540  Acanthomintha obovata subsp. duttonii Hester R. Davis 1920-6-2 182 San Mateo Back of Redwood City. Comment
  JROH161  Acer macrophyllum John Hunter Thomas 1988-4-7 24380 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam; above San Francisquito Creek 87 Comment
  CAS-BOT-BC333212  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Santa Cruz Mountain Peninsula. LosTrancos Road near Las Trancos Dairy 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-BC21588  Achillea millefolium Fred Hemphill 1973-4-22 696 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH449  Achillea millefolium John Hunter Thomas 1983-6-29 22701 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock 105 Comment
  CAS-BOT-BC21578  Achillea millefolium John H. Thomas 1971-5-2 15819 San Mateo Near intersection of Canada Road and Edgewater [sic] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC21599  Achillea millefolium Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  JROH2055  Acmispon americanus var. americanus John H. Thomas 1971-5-30 15962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2072  Acmispon glaber var. glaber John Hunter Thomas 1981-5-14 20575 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18493  Actaea rubra subsp. arguta Carl B. Wolf 1927-7-14 627 San Mateo Summit of La Honda Grade Comment
  RSA523414  Actaea rubra subsp. arguta G. H. True 1936-4-5 390 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  CAS-BOT-BC29293  Adenocaulon bicolor Josephine D. Randall 1907-6-29 41 San Mateo Kings Moutain Road Comment
  CAS-BOT-BC29294  Adenocaulon bicolor George Oberlander 1949-8-20 275 San Mateo Cahill Ridge Comment
  CAS-BOT-BC139954  Adenostoma fasciculatum Ned Cahill 1974-6-21 332 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3585  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1974-5-29 17403 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near Riders' shack 145 Comment
  UC42051  Adiantum aleuticum F. P. McLean 1873-1 San Mateo Pescadero Comment
  CAS-BOT-BC65513  Adiantum aleuticum W. R. Dudley 1896-4-18 s.n. San Mateo Pescadero Creek, Santa Cruz Mts. Comment
  SD27376  Adiantum aleuticum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  JROH2709  Aesculus californica John H. Thomas 1974-5-29 17407 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  RSA12768  Aesculus californica Carl B. Wolf 1934-11-13 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave and Cornell Road, NW of San Francisquito Creek. 15 Comment
  RSA131274  Aesculus californica Josephine Randall 1907-7-24 349 San Mateo Crystal Springs Road. Santa Cruz Peninsula. Comment
  UC202773  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC23017  Agoseris grandiflora var. grandiflora A. G. Vestal 1926-5-29 s.n. San Mateo San Bruno Mt north end Comment
  JROH495  Agoseris heterophylla John Hunter Thomas 1988-6-2 24493 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC15242  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Cemeteries Comment
  CAS-BOT-BC15230  Agoseris hirsuta LeRoy Abrams 1897-10-25 1897 San Mateo Near Portola Comment
  CAS-BOT-BC15231  Agoseris hirsuta W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School House, Black Mountain Comment
  CAS-BOT-BC15232  Agoseris hirsuta W. R. Dudley 1893-5-1 s.n. San Mateo North of San Bruno Comment
  CAS-BOT-BC15241  Agoseris hirsuta Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  UCD164198  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  JEPS129817  Agrostis exarata John Rawlings, Ken Hickman 2017-6-3 2095 B San Mateo Highway 92 west on ramp to Highway 280 north (Caltrans Right Way). Comment
  JROH4781  Agrostis exarata W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4782  Agrostis exarata W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  SACT000091  Agrostis exarata S. Smith, Malcolm Nobs 1949-8-25 San Mateo Comment
  SJSU15956  Agrostis exarata John Rawlings, Ken Hickman 2016-5-26 1833 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
  UCD52545  Agrostis exarata Malcolm A. Nobs; S. Galen Smith Date Unknown 1562 San Mateo at Sharp Park. Comment
  CAS-BOT-BC139463  Agrostis hallii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Canyon east of quarry. Comment
  SJSU11264  Agrostis hallii S. H. Casey 1980-6-13 1156 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. Comment
  JROH4789  Agrostis pallens John H. Thomas 1971-5-30 15964 San Mateo Jasper Ridge Biological Preserve, Stanford University 128 Comment
  SJSU16010  Agrostis pallens John Rawlings, Toni Corelli 2016-5-27 1847 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4834  Aira caryophyllea W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  JROH5641  Aira caryophyllea John Rawlings 2014-6-2 1253 San Mateo Jasper Ridge Biological Preserve, Stanford University; Red Hot Poker Meadow north of Bear Creek and ~ 50 meters east of the Sand Hill Rd. fenceline 102 Comment
  CAS-BOT-BC138235  Aira caryophyllea var. caryophyllea Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Slope on top of mountain. Comment
  CAS-BOT-BC445395  Alisma plantago-aquatica Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mountains Comment
  POM296481B  Alisma triviale Lyman Benson 1931-5-29 2810 San Mateo Santa Cruz Mt. range, Lake Searsville River. 244 Comment
  CAS-BOT-BC445427  Alisma triviale Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo San Bruno Mountains. P.G.&E. Marsh. Comment
  JROH5785  Allium amplectens John Rawlings 2016-4-26 1757 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge (Area C). Also found in the contact drainage just before entering oak woodland as it runs northwest after crossing Trail 9 192 Comment
  SEINET3558047 Image available Allium lacunosum Lewis S. Rose 1932-5-3 32223 San Mateo Redwood City. 183 Comment
  UC766744  Allium lacunosum R. F. Hoover 1941-4-23 4910 San Mateo Redwood City hills Comment
  JROH4555  Allium lacunosum var. lacunosum H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.W. of '"road" on serpentine, and E. of Mimulus Gully, opp. oaks on sep., top of J.R. Comment
  CAS-BOT-BC132025  Allium peninsulare var. franciscanum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - after Hesler farm entrance Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  CAS-BOT-BC132031  Allium peninsulare var. franciscanum L. R. Abrams 1920-6-2 7502 San Mateo Back of Redwood City Comment
  CAS-BOT-BC132036  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Rd, W of San Mateo Comment
  CAS-BOT-BC170157  Alnus rhombifolia W. R. Dudley 1906-10-3 s.n. San Mateo Border of Pescadero Creek, opposite Svensons old place. Santa Cruz Mountain Peninsula Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  UC1108513  Alopecurus saccatus James McMurphy 1906-5-8 San Mateo pond near head of Crystal Springs Lakes Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  UC135837  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville Comment
  CAS-BOT-BC44925  Ambrosia chamissonis Robert T. Orr 1961-7-13 s.n. San Mateo Ano Nuevo Island Comment
  POM223661  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  UC896705  Ambrosia chamissonis Lewis S. Rose 1938-8-14 38226 San Mateo coastal dunes El Granada 3 Comment
  CAS-BOT-BC44928  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  POM139596  Amelanchier pallida L. R. Abrams 1916-4-22 5577 San Mateo Pilarcitos Canyon 3 Comment
  CAS-BOT-BC136833  Amelanchier utahensis Elizabeth McClintock 1972-4-23 s.n. San Mateo Slope above Fern Rock Comment
  SD41374  Ammophila arenaria Edith A. Purer 1932-7-18 4023 San Mateo Near Pigeon Point, sandy area. Comment
  CAS-BOT-BC214044  Amsinckia Mrs. E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Blvd. near Alpine Creek Road Comment
  JROH5694  Amsinckia intermedia John Rawlings 2015-3-23 1417 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 at footbridge 128 Comment
  CAS-BOT-BC27473  Amsinckia maculata Alice Eastwood 1915-6-13 4723 San Mateo Granada Comment
  JROH1345  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007717  Amsinckia spectabilis var. spectabilis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3374  Anagallis minima John H. Thomas 1974-4-25 17214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  UC1125508  Anaphalis margaritacea G. E. Sindel 1935-7-22 294 San Mateo 1/4 mi s of Pescadero; Santa Cruz Quad. 30 Comment
  POM148966  Anemone grayi A. D. E. Elmer 1903-04 4844 San Mateo Kings Mtn. Comment
  CAS-BOT-BC221457  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  UC648295  Angelica hendersonii Alice Eastwood, John Thomas Howell 1939-7-9 7441 San Mateo e of La Honda (Skyline Boulevard); Skyline Boulevard Comment
  CAS-BOT-BC273182  Anisocarpus madioides James I. McMurphy 1909-5-25 s.n. San Mateo Above Pulpit Rock, San Mateo Canyon Comment
  CAS-BOT-BC273187  Anisocarpus madioides Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH505  Anthemis cotula John Hunter Thomas 1979-6-2 19594 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC102290  Anthemis cotula Saichi Kawahara 1968-7-29 458 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC102291  Anthemis cotula George Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek Comment
  UCD18541  Anthemis cotula Roman Gankin 1950-7-4 9 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH194  Anthriscus caucalis John H. Thomas 1967-5-31 12921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH201  Anthriscus caucalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH3608  Aphanes occidentalis John Hunter Thomas 1982-3-12 20806 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454494  Aphanes occidentalis John H. Thomas 1971-5-2 15831 San Mateo Serpentine fields near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC454502  Aphanes occidentalis J. H. Thomas 1963-1-27 10015 San Mateo Edge of grassland near westridge end of Jasper Ridge, Stanford University Biological Experimental Area. Comment
  CAS-BOT-BC392062  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  UC463319  Aquilegia eximia W. R. Dudley 1902-9-21 San Mateo sw Crystal Springs Lake; Santa Cruz Peninsula Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC405900  Aquilegia formosa Ira L. Wiggins 1925-4-1 1652 San Mateo Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (Sequoia sempervirens) belt. Comment
  CHSC57096  Aquilegia formosa var. truncata Steven Triano 1988-5-24 206 San Mateo Along S side of Old La Honda Road ca 0.3 mi E of its jct. With La Honda Road. 365 Comment
  CAS-BOT-BC17323  Arabis blepharophylla Javier Penalosa 1963-2-23 2654 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC17324  Arabis blepharophylla W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  SEINET10454399  Aralia californica Mary Susan Taylor 1978-8-30 Taylor 1853 San Mateo Comment
  CAS-BOT-BC128670  Arbutus menziesii J. H. Thomas 1949-4-14 275 San Mateo King's Mountain Comment
  CAS-BOT-BC128671  Arbutus menziesii E. A. McGregor 1907-4-28 s.n. San Mateo King's Mountain 243 Comment
  UC144406  Arctostaphylos C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  JROH5920  Arctostaphylos Toni Corelli 2004-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along driveway of private lot immediately east of Goya Gate along the Preserve's boundary fence Comment
  CAS-BOT-BC24126  Arctostaphylos andersonii A. D. E. Elmer 1903-3-1 4537 San Mateo King's Mountain Comment
  RSA303424  Arctostaphylos auriculata J. R. Shevock 1971-2-27 702 San Mateo 5 mi-Jct, Skyline Rd; So of Calif. Hwy 92. 457 Comment
  CAS-BOT-BC23504  Arctostaphylos crustacea Josephine D. Randall 1906-3-9 137 San Mateo Road to King's Mt. 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-BC23511  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23517  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King Mt. Comment
  RSA26358  Arctostaphylos crustacea E. K. Balls, Percy C. Everett 1953-10-16 18682 San Mateo Hwy 5, 30.8 mi SE of San Francisco-San Mateo Co. line. 762 Comment
  SBBG34020  Arctostaphylos crustacea subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo King's Mtn Rd, 4 mi W of Woodside. 304 Comment
  CAS-BOT-BC24489  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC Television Station, San Bruno Mtns. 457 Comment
  RSA167726  Arctostaphylos imbricata R. F. Thorne, Percy C. Everett 1963-6-9 32219 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  SJSU5745  Arctostaphylos imbricata L. S. Rose 1955-2-23 55002 San Mateo TYPE LOCALITY; San Bruno Hills Comment
  UC1137193  Arctostaphylos imbricata G. Ward 1940-8-5 San Mateo San Bruno Mt. San Mateo Quadrangle Comment
  UC942860  Arctostaphylos imbricata Lewis S. Rose 1951-3-13 51001 San Mateo San Bruno Hills San Bruno Hills (type locality) 304 Comment
  RSA502352  Arctostaphylos imbricata D. W. Taylor 1988-4-8 9478 San Mateo San Bruno Mountain, summit of mountain: ca. 100 m east of the summit parking lot at the eastern extent of public road access. 381 Comment
  CAS-BOT-BC38523  Arctostaphylos montaraensis Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4087 San Mateo Collected from near Pacific Rock on San Bruno Mt. 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
  JEPS88613  Arctostaphylos montaraensis J. Roof 1966-3-27 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  UCD51770  Arctostaphylos montaraensis Roman Gankin; W. R. Hildreth 1966-5-17 738 San Mateo Southeast-facing slope of Montara Mountain. Comment
  SEINET11989201  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4641 San Mateo San Bruno Mountain 305 Comment
  SEINET11989203  Arctostaphylos montaraensis E. McClintock, Knight, W.; Knight, I. 1982-1 4643 San Mateo San Bruno Mountain 320 Comment
  CAS-BOT-BC27198  Arctostaphylos pacifica James B. Roof 1961-4-18 s.n. San Mateo NE face of San Bruno Mountain 335 Comment
  RSA0042504  Arctostaphylos pacifica Gary D. Wallace 1975-12-26 1517 San Mateo San Bruno Mountains, east slope, near parking lot at top of Radio Road. 396 Comment
  CAS-BOT-BC44705  Arctostaphylos regismontana Lewis S. Rose 1932-1-16 3214 San Mateo Kings Mountain 640 Comment
  CAS-BOT-BC44708  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 831 San Mateo On Peak Mt. - Western sector 304 Comment
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  POM367226  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  SEINET3164344  Arctostaphylos regismontana L. S. Rose 1940-2-10 40001 San Mateo Kings Mountain 701 Comment
  UC750515  Arctostaphylos regismontana Lewis S. Rose 1947-3-11 47028 San Mateo type locality Kings Mountain 609 Comment
  CAS-BOT-BC44673  Arctostaphylos sensitiva W. R. Dudley 1897-12-29 s.n. San Mateo Butano Ridge, between Butano & Pescadero Crs. - Santa Cruz Peninsula Comment
  UC1120095  Arctostaphylos tomentosa subsp. crinita N. K. Carlson 1935-6-12 47 San Mateo 1 mi e Hollow Tree; Santa Cruz Quadrangle 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
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings Mountain. Comment
  UC1120104  Arctostaphylos tomentosa subsp. crustacea Beryl Schreiber 1938-10-16 2565 San Mateo King's Mountain Santa Cruz Quadrangle 609 Comment
  UC82985  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC46833  Arctostaphylos uva-ursi Arthur Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  UCD51959  Arctostaphylos uva-ursi Robert F. Thorne; Percy C. Everett 1963-6-9 32241 San Mateo Mound-shaped shrub to 1/2 meter, in north coastal scrub on top of San Bruno Mt. near TV tower Comment
  UCD52146  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Near rocky outcrop at Kamchatka Point, San Bruno Mountain. San Mateo County. Comment
  SEINET11989204  Arctostaphylos uva-ursi W. Knight, Knight, I.; McClintock, E. 1982-1 4639 San Mateo NE of parking loc, San Bruno Mountain 335 Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit Comment
  JEPS91222  Arctostaphylos uva-ursi var. suborbiculata Dean W. Taylor 1988-4-29 9585 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  SEINET11989301  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I.; McClintock, E. 1982-1 4442 San Mateo Kamchatka Point, San Bruno Mt Comment
  CAS-BOT-BC102179  Arctotheca Paul Reedberg 1988-4-27 s.n. San Mateo Adjacent to Camp Silverspot. San Bruno Mountains Comment
  JEPS26346  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo nr. Pescadero; Pebble Beach 3 Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  CDA29889  Arrhenatherum elatius J. Eide 2009-7-2 PDR# 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno. 0 Comment
  CAS-BOT-BC84879  Artemisia californica Fred Hemphill 1973-4-15 651 San Mateo San Carlos - chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH516  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Preserve, Stanford University; E end of Searsville Dam Comment
  SEINET11836170  Artemisia californica L. S. Rose 1936-1 36716 San Mateo Granada 30 Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  JROH518  Artemisia douglasiana John H. Thomas 1976-10-16 18439 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
  POM289331  Artemisia douglasiana Lyman Benson 1937-7-8 8448 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  SEINET10958279  Artemisia douglasiana Lewis S. Rose 1965-9-4 Rose 65101 San Mateo Skyline Blvd. & Half Moon Bay Road, Cahill Ridge, moist slopes. 244 Comment
  CHSC56966  Artemisia pycnocephala Steven Triano 1988-5-24 187 San Mateo W of Hwy 1 ca 0.2 mi N of Pescadero Road. 9 Comment
  UC484308  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo along coastal bluffs s of Pescadero 7 Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  POM165734  Asarum caudatum E. B. Copeland 1903-5-9 s.n. San Mateo Mountains beyond Pescadero Creek 305 Comment
  SJSU10590  Asarum caudatum W. F. Larson 1973-4-16 San Mateo 5 mi E of La Honda 457 Comment
  JROH431  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR254764  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA249496  Aster chilensis John F. Emmel 1971-9-6 386 San Mateo Ravine 0.3 air miles southeast of 1314' summit, NE slope of San Bruno Mts. 320 Comment
  CAS-BOT-BC478065  Asteraceae H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula, Woodside Comment
  JROH1993  Astragalus gambelianus John Hunter Thomas 1981-4-23 20480 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC903405  Astragalus gambelianus Lois E. James 1946-4-16 1741 San Mateo High Road off Woodside Road hills back Redwood City; back of Redwood City Comment
  CAS-BOT-BC186764  Astragalus gambelianus Ira L. Wiggins 1925-4-11 1624 San Mateo Hillside across from Schroder's. One and one half miles above Stanford University Comment
  RSA60160  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City. 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-BC177975  Astragalus nuttallii var. virgatus R. S. Ferris 1921-5-29 2185 San Mateo Pescadero, Pebble Beach Comment
  POM16314  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Point. Comment
  SBBG34010  Astragalus nuttallii var. virgatus L. S. Rose 1969-9-20 69112 San Mateo Thornton Beach 24 Comment
  CAS-BOT-BC193089  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  CAS-BOT-BC17584  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC170572  Atriplex John H. Thomas 1968-10-6 14844 San Mateo Vicinity of railroad tracks and Dumbarton Bridge casueway entrance. East of Palo Alto. Comment
  UCD54556  Atriplex patula Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2746 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  SJSU16064  Atriplex prostrata Toni Corelli 2009-9-9 440 San Mateo Half Moon Bay State Beach, in low dunes Comment
  JEPS109218  Atriplex triangularis D. W. Taylor 2005-9-26 19492 San Mateo 1 mile S along coast from Franklin Point, Ano Nuevo State Reserve. Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  CAS-BOT-BC98696  Baccharis douglasii Theresa Gertrude Williamson 1923-8-4 s.n. San Mateo Near La Honda Comment
  JEPS59963  Baccharis glutinosa Lewis S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Rd. 609 Comment
  UC893647  Baccharis glutinosa Lewis S. Rose 1941-10-31 41173 San Mateo Searsville Lake 91 Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99507  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Radio Road, San Bruno Mountains Comment
  CAS-BOT-BC99513  Baccharis pilularis L. R. Abrams 1914-10-14 5137 San Mateo Tunitas Comment
  CAS-BOT-BC99533  Baccharis pilularis David D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach Comment
  CAS-BOT-BC99534  Baccharis pilularis George Oberlander 1951-7-12 1211 San Mateo San Andreas Valley Comment
  RSA2153  Baccharis pilularis C. B. Wolf 1931-5-6 1807 San Mateo 4 miles south of Pescadero 8 Comment
  POM199570  Baccharis pilularis Horace Davis 1907-09 116 San Mateo Camp Idle, Santa Cruz Mts. Comment
  CAS-BOT-BC16618  Barbarea orthoceras Javier Penalosa 1963-3-9 2697 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC16626  Barbarea orthoceras Fred Hemphill 1973-3-9 716 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16635  Barbarea orthoceras Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. 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
  RSA152071  Bellardia trixago John H. Thomas 1961-5-5 9223 San Mateo Along Sandhill road about 3.5 miles westward from Stanford Univ. 91 Comment
  UCR101678  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC75868  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Hills west of San Andreas Reservoir. Comment
  CAS-BOT-BC75865  Berberis pinnata Walter Knight; Irja Knight 1964-3-15 569 San Mateo San Bruno Mountains. On ridge near Nike Base. Comment
  UCD97702  Beta vulgaris subsp. maritima Malcolm A. Nobs; S. Galen Smith 1949-8-27 1620 San Mateo E of Redwood City. 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-BC66299  Blechnum spicant W. R. Dudley 1901-12-31 s.n. San Mateo along the upper Gazos Creek Comment
  CAS-BOT-BC389681  Bloomeria crocea Mary Wicksten 1969-6-25 s.n. San Mateo Huddart Park Comment
  CAS-BOT-BC145403  Brachypodium distachyon Bonnie McClellan; J. Ed. McClellan 1971-5-31 s.n. San Mateo Butano State Park. Comment
  JROH5713  Brachypodium distachyon John Rawlings 2015-4-26 1442 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of Field Station 119 Comment
  CDA20475  Brachypodium sylvaticum J. Beall 2003-12-12 PDR 1387963 San Mateo San Francisco Bay Area; Along Hwy 84 at Grandview Dr. 0 Comment
  CDA36477  Brachypodium sylvaticum Ellen Gartside 2011-8-12 s.n. San Mateo Woodside; above Grandview Drive at entrance of private driveway. Comment
  CDA36480  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd. Comment
  JROH1470  Brassica rapa John Hunter Thomas 1989-5-23 24747 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge over two parts of lake Comment
  UCR136582  Brassica rapa George K. Helmkamp, E. A. Helmkamp 1999-6-28 5014 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-BC36795  Brassica rapa Catherine A. Toschi 1963-2-23 63 :30 San Mateo North slope San Bruno Mountains above Crocker Avenue. 137 Comment
  CAS-BOT-BC36798  Brassica rapa Daniel Cohen 1953-5-9 71 San Mateo Top of sea cliff at Pescadero. Comment
  CAS-BOT-BC186702  Brassicaceae Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo On San Bruno Point Comment
  JROH4872  Briza maxima John Hunter Thomas 1988-6-1 24492 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam. Comment
  CAS-BOT-BC145323  Briza minor Margaret A. Barry 1937-5-15 125 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC145334  Briza minor J. H. Thomas 1949-6-4 571 San Mateo Along coast, 1.4 miles south of road to Pescadero. Comment
  JROH4879  Briza minor John H. Thomas 1963-5-15 10090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 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
  CAS-BOT-BC484342  Brodiaea elegans subsp. elegans Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC484347  Brodiaea elegans subsp. elegans Margaret A. Barry 1960-6-8 162 San Mateo slopes on Coal Mine Ridge Comment
  SEINET3885153  Brodiaea pulchella K. Harper 1984-4-25 84 -8 San Mateo Along Crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC149396  Bromus berteroanus Richard Hobbs 1982-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, about 5 miles SW of the downtown section of Palo Alto. The Preserve consists of about 1400 acres. This from Area C Comment
  POM234978  Bromus carinatus I. L. Wiggins 1928-4-22 2946 San Mateo Moss Beach Comment
  RSA159425  Bromus carinatus John H. Thomas 1961-5-14 9374 B San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  SJSU7534  Bromus carinatus Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd W of San Mateo 91 Comment
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Oct 16 2013
  CAS-BOT-BC149012  Bromus carinatus var. carinatus Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. Along road on top of mountain. Comment
  CAS-BOT-BC149017  Bromus carinatus var. carinatus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike Station. Comment
  CAS-BOT-BC149022  Bromus carinatus var. carinatus Ned Cahill 1974-5-30 317 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4904  Bromus carinatus var. carinatus W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Going north on fire road from Goya, before serpentine, 40 yards to right up small hill, middle of oaks, 50 yds from turn by blue oaks. Comment
  CAS-BOT-BC148765  Bromus carinatus var. marginatus Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo San Bruno Mountain. San Bruno Mountain Power Line Ridge. 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-BC156177  Bromus catharticus John Thomas Howell 1954-7-8 30010 San Mateo Skyline Boulevard above San Bruno. Comment
  RSA101049  Bromus diandrus G. Oberlander 1949-5-13 188 San Mateo San Andreas Valley, San Francisco Watershed Reserve 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
  JROH4923  Bromus hordeaceus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
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Nov 12 2011
  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
  JROH4943  Bromus madritensis subsp. madritensis John Hunter Thomas 1980-5-1 19913 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4957  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road B near north boundary fence. 78 Comment
  RSA523926  Bromus maritimus G. H. True 1937-4-3 621 San Mateo Near coast north of Salada Beach. 15 Comment
  UCD59044  Bromus maritimus Roxana S. Ferris 1920-4-27 1981 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo. 0 Comment
  UCSC007724  Bromus maritimus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC161747  Bromus rubens John H. Thomas 1965-4-29 10626 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  RSA320908  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  CAS-BOT-BC185396  Bromus vulgaris W. R. Dudley 1894-7-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Pescadero and La Honda. Comment
  UC1131105  Bromus vulgaris N. K. Carlson 1935-6-2 76 San Mateo Ridge between Oil Creek and Slate Creek 670 Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  CAS-BOT-BC36866  Cakile edentula var. edentula Reed Clark Rollins 1941-7-19 2961 San Mateo Half Moon Bay, along the beach. Comment
  UC676751  Cakile maritima Reed C. Rollins 1941-7-19 2962 San Mateo Half Moon Bay Comment
  CAS-BOT-BC36948  Cakile maritima var. maritima J. H. Thomas 1954-4-3 3829 San Mateo Dunes Beach, about 1.5 mile northwest of Half Moon Bay. Comment
  CAS-BOT-BC36952  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. 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-BC185147  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  UC204153  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro Comment
  CAS-BOT-BC438536  Calandrinia ciliata Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  CAS-BOT-BC438539  Calandrinia ciliata John H. Thomas 1974-4-11 17128 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  RSA116800  Callitriche heterophylla subsp. bolanderi W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn. Peninsula: Pool along new Grade Road Black Mt. Comment
  JROH1634  Callitriche marginata John H. Thomas 1968-3-31 14259 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
  CAS-BOT-BC492202  Calochortus albus George Oberlander 1950-5-6 975 San Mateo Among Redwood, Cahill Ridge Comment
  CAS-BOT-BC492207  Calochortus albus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1698 San Mateo Canyonside, Redwood Belt, Santa Cruz Mts., 3 miles west of Woodside Comment
  CAS-BOT-BC492217  Calochortus albus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH5745  Calochortus albus J. C. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Above San Francisquito Creek, near redwood grove. Comment
  JROH4625  Calochortus argillosus John Hunter Thomas 1977-6-7 18734 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4631  Calochortus luteus John H. Thomas 1971-5-30 15960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4632  Calochortus luteus D. E. Breedlove 1971-5-31 19357 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4639  Calochortus luteus John Hunter Thomas 1982-6-7 21024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491990  Calochortus luteus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC491991  Calochortus luteus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa cruz Mts., above Searsville Lake Comment
  IRVC9063  Calochortus luteus P. W. Rundel 1964-7-8 1362 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  SEINET12044176  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  SJSU10003  Calochortus tolmiei L. S. Chan 1955-6-4 123 San Mateo Kings Mt Rd 1.5 mi W of woodside 243 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
  UC1134540 Image available Calochortus venustus N. Carlson 1935-6-20 74 San Mateo at Head (or ridge) of Oil and Slate Creek Santa Cruz Quad. 670 Comment
  UC203047 Image available Calochortus venustus A. D. E. Elmer Jul 1903 4763 San Mateo Portola Comment
  SEINET12044558  Calochortus venustus L. S. Rose 1931-1 s.n. San Mateo Redwood City 610 Comment
  SEINET3480492  Calycadenia multiglandulosa L. S. Rose 1941-6-12 1897 San Mateo Emerald Lake, Emerald Lake, West of Redwood City 120 Comment
  RSA124773  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  CAS-BOT-BC224660  Calystegia purpurata subsp. purpurata H. A. Lewis 1908-5-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC224661  Calystegia purpurata subsp. purpurata James McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, near Stanford University Comment
  CAS-BOT-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  CAS-BOT-BC224668  Calystegia purpurata subsp. purpurata Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC224669  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-4-22 734 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA60634  Calystegia soldanella I. L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Comment
  JROH1845  Calystegia subacaulis subsp. subacaulis John H. Thomas 1967-5-10 12858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM187504  Camissonia cheiranthifolia subsp. cheiranthifolia E. A. Purer 1933-7-27 5388 San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC160322  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1909-8-2 4250 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  SEINET10462936  Campanula prenanthoides Rose 1933-7-25 Rose 33311 San Mateo Kings Mountain. Comment
  SEINET10463066  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo Summit La Honda Grade Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing 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-BC37160  Capsella bursa-pastoris Walter Knight; Irja Knight 1964-4-13 634 San Mateo San Bruno Mountains. Power Line Ridge. Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37660  Cardamine californica W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula. Devil's Canyon, near Black Mountain. Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  JROH1487  Cardamine oligosperma Le Roy Abrams 1901-3-1 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007728  Cardamine oligosperma Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  CDA6893  Carduus tenuiflorus W. S. Ball 1946-4-19 San Mateo 5 miles below Half Moon Bay. 0 Comment
  CAS-BOT-BC18187  Carex Roxana S. Ferris 1918-3-31 753 San Mateo Edge of Helvetio (Mud) Lake, Coal Mine Ridge. Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  UC823145  Carex barbarae Alice Eastwood, John Thomas Howell 1938-4-24 5247 San Mateo Lobitas Comment
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Oct 30 2021
  SEINET7552599 Image available Carex bolanderi Lewis S. Rose 1933-6-23 s.n. San Mateo Kings Mountain Steams. Comment
  CAS-BOT-BC34077  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5265 San Mateo Pigeon Point. Comment
  SJSU2296  Carex brevicaulis C. W. Sharsmith 1950-4-16 6625 San Mateo coastal bluff, Pescadero Point near Pescadero Comment
  CAS-BOT-BC34071  Carex brevicaulis W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  CAS-BOT-BC34072  Carex brevicaulis John Thomas Howell 1965-3-29 41035 San Mateo West end of summit ridge of San Bruno Mountain. 396 Comment
  JROH4334  Carex densa John Rawlings, Carol Zabel 2005-6-13 0902 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 1 (creek side) before entering wooded area and Santa Barbara sedge area walking downstream. 87 Comment
  SEINET3128116  Carex dudleyi L. S. Rose 1939-4-14 39064 San Mateo South San Francisco 15 Comment
  SEINET8345404  Carex hirta LeRoy E. Detling 1934-3-7 1008 San Mateo none. 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
  UC70631  Carex nudata J. Burtt Davy 1893-6-17 791 San Mateo Belmont Comment
  CAS-BOT-BC176407  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  JROH5662  Carex subbracteata John Rawlings 2014-5-19 1252 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  RSA788836  Carex subbracteata Peter Rubtzoff 1978-3-18 9172 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  SEINET6192755 Image available Carex subbracteata J. T. Howell 1938-5-1 13782 San Mateo near South San Francisco Comment
  UCD164096  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 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-BC116823  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5248 San Mateo Lobitas Comment
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Oct 30 2021
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  CAS-BOT-BC115515  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  CAS-BOT-BC115505  Carex tumulicola Elizabeth McClintock; P. Reeberg 1989-5-23 s.n. San Mateo Below the east end of Ranch Road, western Guadalupe Hills. 99 Comment
  SEINET3908568  Carex tumulicola Lewis S. Rose 1971-5-18 71031 San Mateo Tartan Trail Road. Hillsborough.; 0 91 Comment
  CAS-BOT-BC230112  Carpobrotus chilensis John H. Thomas 1963-5-20 10142 San Mateo Ano [Ano] Nuevo Island, about 0.5 mile off shore and about 20 miles NW of Santa Cruz Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA19951  Carthamus lanatus A. King 2002-7-19 PDR P 120164 San Mateo San Francisco Bay Area; 1906 Pomponio Creek Rd. 0 Comment
  JROH4011  Castilleja H. J. Dengler 1961-7-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Corte Madera Creek in southern-most corner of the preserve Comment
  JROH4012  Castilleja H. J. Dengler 1961-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 Comment
  RSA82256  Castilleja affinis F. W. Peirson 1932-7-5 10243 San Mateo Just south of Pescadero. Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JEPS6916  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4741 San Mateo about 0.75 mi w Skyline Boulevard (upper part of Tunitas Canyon road, w slopes of Kings Mountain); Kings Mountain 579 Comment
  JEPS88834  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7880 San Mateo hill just s Rockaway Beach Comment
  UC1032388  Castilleja affinis subsp. affinis G. E. Sindel 1935-7-24 311 San Mateo Mouth of Pesacdero Creek Mouth of Pescadero Creek; Santa Cruz Quad. 3 Comment
  UC1537571  Castilleja affinis subsp. affinis Gordon H. True Jr. 1936-4-5 389 San Mateo between San Gregorio and Pescadero 152 Comment
  POM21102  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada. Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  JROH3970  Castilleja attenuata John Hunter Thomas 1985-4-18 23526 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS108121  Castilleja attenuata Dean Kelch 1993-3-30 s. n. San Mateo N of junction of I-280 and 92 nr SM Co Fire Dept. 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
  JROH5616  Castilleja densiflora subsp. densiflora John Rawlings 2014-5-3 1220 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of the power pole mound where dear-browsed shrubby coast live oaks begin transition into San Francisquito Creek riparian corridor. 89 Comment
  UC76117  Castilleja densiflora subsp. densiflora E. R. Drew 1888-4-12 San Mateo San Pedro Ranch Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC1012313  Castilleja exserta F. W. Pennell and L. R. Abrams 1940-5-16 25432 San Mateo 2 mi sw Skyline Boulevard (on Alpine Creek Road) 579 Comment
  JEPS86225  Castilleja exserta subsp. exserta L. R. Heckard 1970-5-5 2450 San Mateo above Bay Shore Freeway (e end of San Bruno Mountain); San Bruno Mountain 91 Comment
  POM15341B  Castilleja exserta subsp. latifolia Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  CAS-BOT-BC243838  Castilleja latifolia Alice Eastwood; John Thomas Howell 1938-4-24 5252 San Mateo Tunitas Comment
  CAS-BOT-BC243839  Castilleja latifolia John Thomas Howell 1933-4-9 10964 San Mateo Granada Comment
  JROH3993  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1958-5-10 7147 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of ridge Comment
  SJSU661  Castilleja rubicundula subsp. lithospermoides A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  UC886506  Castilleja rubicundula subsp. lithospermoides Alice Eastwood 1912-6-10 321 San Mateo Crystal Springs Comment
  JEPS83044  Castilleja subinclusa subsp. franciscana Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 430 San Mateo ca 1.7 km sw Pilarcitos Dam (and 5.8 km nw of intersection of Calif Hwys 35 and 92, along crest of Cahill Ridge, on e side of gravel rd); San Francisco Watershed Reserve, Cahill Ridge 335 Comment
  JEPS6922  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4554 San Mateo between La Honda Creek and Pescadero Creek (summit of divide, on the road from La Honda and San Mateo County Memorial Redwood Park) 304 Comment
  SBBG51587  Castilleja subinclusa subsp. franciscana J. Doty 1969-3-26 595 San Mateo E of jct of St Hwy 92, near summit of coast range, San Francisco Peninsula Comment
  JEPS15590  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney, Cliff Fenneman and George Bacigalupi Jr. 1954-8-3 4737 San Mateo slopes directly above Edgemar (on the old coast highway connection with Skyline Boulevard) 76 Comment
  JEPS70084  Castilleja wightii L. R. Heckard 1972-4-16 2904 San Mateo e of Pilarcitos Lake Comment
  RSA10376A  Castilleja wightii H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  UC729641  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo s of Pescadero (Pebble Beach); Pebble Beach Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  JEPS6921  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4553 San Mateo 0.25 mi w (and below) Alpine Road junction with road to Portola State Park (along Alpine Road) 426 Comment
  JEPS79097  Castilleja wightii L. R. Heckard 1980-5-3 5191 San Mateo s of Guadalupi Parkway, San Bruno Mt. (on slopes about Fern Rock, n part of San Bruno Mt., in upper end of drainage of Guadalupi Valley); San Bruno Mt., Guadalupi Valley, Fern Rock 182 Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  RSA219032  Castilleja wightii Walter Knight, I. Knight 1967-1-18 s.n. San Mateo Top of Quarry 4. San Bruno Mountain. Comment
  SBBG100089  Castilleja wightii R. Bacigalupi 1954-6-18 4553 San Mateo Alpine Rd, 0.25 mi below and W of its jct with rd to Portola State Park 426 Comment
  UC1301213  Castilleja wightii Helen K. Sharsmith 1963-3-23 5252 San Mateo near Pacific City; San Francisco Bay Region 45 Comment
  JEPS127814  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-4-7 78 San Mateo Comment
  JROH1525  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1531  Caulanthus lasiophyllus John Rawlings, Ann Lambrecht 2010-5-5 1098 San Mateo Jasper Ridge Biological Preserve, Stanford University; open area up-slope side of the long, straight stretch of Trail 9 158 Comment
  CAS-BOT-BC39383  Caulanthus lasiophyllus Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC39384  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-5-9 1103 San Mateo San Bruno Mountains. Devil's Arroyo. Comment
  CAS-BOT-BC40395  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-4-25 1090 San Mateo San Bruno Mountain. In Devil's Arroyo. Comment
  CAS-BOT-BC40398  Caulanthus lasiophyllus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Adjacent to Guadalupe Road. Comment
  RSA399076  Ceanothus cuneatus L. H. Jones 1909-3-5 s.n. San Mateo Summit and W side of Jasper Ridge, Stanford University 198 Comment
Read comments
Sep 19 2011
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA48819  Ceanothus cuneatus var. dubius E. K. Balls 1948-3-19 7869 San Mateo 2 mi. N. of S end of State Rt. 5. 305 Comment
  CDA34104  Ceanothus incanus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .158 San Mateo Santa Cruz Mountains.; Along Big Basin Hwy ~5 km E of Big Basin. Comment
  RSA10378  Ceanothus oliganthus H. A. Barker 1926-5-1 604 San Mateo Kings Mt. Comment
  CAS-BOT-BC51603  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. between San Francisco and Santa Cruz Comment
  JROH3532  Ceanothus oliganthus var. sorediatus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  CAS-BOT-BC51240  Ceanothus papillosus Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC51242  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  SBBG50603  Ceanothus papillosus R. T. Stahmer Jr. 1972-3-24 11 F San Mateo Huddart Park, Woodside Comment
  CAS-BOT-BC52275  Ceanothus thyrsiflorus Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52278  Ceanothus thyrsiflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Powerline Ridge Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52288  Ceanothus thyrsiflorus W. R. Dudley 1899-5-14 s.n. San Mateo Ravine on road from San Andreas to Palacios Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  HSC18329  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 122 Comment
  HSC23931  Ceanothus thyrsiflorus Mary Katherine Wicksten 1971-6-17 26 San Mateo Huddart Park, near parking are above Redwood Shelter 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
  SBBG64339  Ceanothus thyrsiflorus var. thyrsiflorus C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  JROH597  Centaurea calcitrapa John Hunter Thomas 1992-7-24 25388 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  RSA289669  Centaurea calcitrapa Lyman Benson 1930-4-15 2037 San Mateo Spring Valley; Crystal Springs Lake 152 Comment
  RSA101008  Centaurea melitensis G. Oberlander 1950-5-6 895 San Mateo Near San Anreas Lake, San Francisco Watershed Reserv Comment
  CAS-BOT-BC438778  Centaurea solstitialis Phyllis Bentley 1988-5-17 248 San Mateo Ano Nuevo State Park Comment
  JEPS10207  Centaurium davyi Rimo Bacigalupi with G. T. Robbins 1954-6-18 4560 San Mateo Point Ano Nuevo Comment
  POM130628  Centaurium davyi E. B. Copeland 1903-5-24 3262 San Mateo Along Crystal Springs Lake Comment
  SEINET7096716  Centaurium davyi A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. NAD27, 37? deg. 24' 29ao, -122?_ 13' 33ao (converted to WGS84 decimal degrees) UTM Zone 10, 568517mE, 4140222mN. Comment
  POM296667  Centaurium davyi L. S. Rose 1941-6-19 41280 San Mateo Kings Mountain Road, three miles west of Woodside. 183 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
  JEPS23530  Centranthus ruber J. H. Thomas 1958-11-9 7503 San Mateo along El Camino Real at northern end San Carlos 30 Comment
  SEINET3385989 Image available Centromadia pungens Lewis S. Rose 1938-8-18 38231 San Mateo Open fields. 6 Comment
  UC89050  Centromadia pungens subsp. pungens K. Brandegee 1901-9-1 San Mateo South San Francisco Comment
  CAS-BOT-BC384958  Cerastium arvense W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  JROH148  Ceratophyllum demersum John H. Thomas 1974-6-30 17464 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11914803  Cercocarpus betuloides J. T. McMurphy 1906-1 18 San Mateo Los Trancos Creek, Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET11914804  Cercocarpus betuloides Unknown 1932-1 8945 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC135473  Cercocarpus betuloides var. betuloides James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's Ranch Comment
  JROH3617  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-3-25 5573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57077  Chenopodium californicum Steven Triano 1988-5-24 212 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  JROH1825  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20195 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area Comment
  CAS-BOT-BC471350  Chenopodium rubrum var. humile L. R. Abrams; I. L. Wiggins 1930-11-13 178 San Mateo Margin of pond at Salada Beach Comment
  CAS-BOT-BC497724  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 806 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4645  Chlorogalum pomeridianum var. pomeridianum D. E. Breedlove 1971-5-31 19390 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA18447  Chlorogalum pomeridianum var. pomeridianum Carl B. Wolf 1927-6-29 560 San Mateo South of Pebble Beach near Pescadero Comment
  CDA19860  Chondrilla juncea D. Pendleton 2002-5-2 PDR 065847 San Mateo San Francisco Bay Area; Belmont Ave & El Camino Real, San Carlos. 0 Comment
  CAS-BOT-BC191591  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. San Bruno Mountain Comment
  UC306660  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer May 1903 4828 San Mateo San Pedro; ; San Pedro, San Mateo Co. Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
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Oct 1 2021
  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-BC36405  Chrysolepis chrysophylla George Oberlander 1949-8-8 411 San Mateo Southern Cahill Ridge Comment
  CAS-BOT-BC36454  Chrysolepis chrysophylla William R. Dudley 1893-5-27 s.n. San Mateo Woodside Road Comment
  CAS-BOT-BC389727  Chrysolepis chrysophylla M. K. Wicksten 1971-7-12 63 San Mateo Huddart Pk. Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. Comment
  UCSB1025  Chrysolepis chrysophylla Muller, Cornelius 1951-1-28 San Mateo South of Pescadero Comment
  RSA3093  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 2335 San Mateo 1/2 way up the east side of Kings Mt. 366 Comment
  UC527532  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 San Mateo 0.5 way up e side Kings Mt. 365 Comment
  CAS-BOT-BC36408  Chrysolepis chrysophylla var. minor C. B. Wolf 1931-8-21 2335 San Mateo Upper Sonoran. 1/2 way up the east side of Kings Mt. 365 Comment
  JROH2580  Cicendia quadrangularis Rimo Bacigalupi 1922-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2586  Cicendia quadrangularis John H. Thomas 1973-4-20 16579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA1230  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -B San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  UC922267  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3952 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  SEINET5506166  Cirsium fontinale var. fontinale John Thomas Howell San Mateo Comment
  UC30885  Cirsium occidentale var. venustum J. Burtt Davy 1895-4-20 1083 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280505  Cirsium quercetorum Roxana S. Ferris 1921-4-7 2144 San Mateo Santa Cruz Mountain Peninsula. San Bruno Mountain 213 Comment
  CAS-BOT-BC280530  Cirsium quercetorum John H. Thomas 1961-5-7 9271 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS21772  Cirsium quercetorum J. H. Thomas 1954-6-11 4287 San Mateo about 0.25 mi n of Pidgen Point Light House 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
  JEPS80473  Cirsium quercetorum L. R. Heckard 1981-5-25 5663 San Mateo on e side of the s end Lower Crystal Springs Reservoir (nw of junction (freeway interchange) of highway state <sic> 92 and U. S. 280) Comment
  UC306688  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  RSA0070860  Cirsium quercetorum A. D. E. Elmer 1903-06 4290 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC285870  Cirsium vulgare Ned Cahill 1975-1-18 398 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC285871  Cirsium vulgare Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  CAS-BOT-BC162604  Clarkia Paul Reeberg 1989-5-19 s.n. San Mateo In ravine above Shearwater - San Bruno Mountains 137 Comment
  HSC59099  Clarkia cylindrica Clark L. Miller 1978-6-15 265 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1, on Verde Rd. 61 Comment
  CAS-BOT-BC163965  Clarkia purpurea subsp. quadrivulnera John H. Thomas 1958-5-13 7168 San Mateo About 3 miles SW of San Mateo along Skyline Blvd, 0.3 mi. S of its intersection with Black Mt. Rd. 304 Comment
  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
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC165164  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 miles east of Pescadero on road along Pescadero Creek Comment
  JEPS43736  Clarkia rubicunda Alice King 1908-7-25 San Mateo Moss Beach Comment
  JEPS82913  Clarkia rubicunda Roy E. Buck, Randall A. Morgan 1983-6-7 335 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280, n of small watercourse San Francisco Watershed Reserve 158 Comment
  UC107811  Clarkia rubicunda Katharine Brandegee 1905-7-20 San Mateo near Lake Pilarcitos Comment
Read comments
Jun 26 2010
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  CAS-BOT-BC165127  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between 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
  RSA113594  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo Near San Gregorio Creek, 6.1 miles from San Gregorio on road to La Honda Comment
  SJSU11021  Clarkia rubicunda A. H. Lilliberg 1961-5-22 San Mateo by Woodside Heights Rd near Woodside Comment
  UC1071887  Clarkia rubicunda H. and M. Lewis 1951-6-28 859 San Mateo 1.8 mi s Sharp Park Comment
  CAS-BOT-BC439294  Claytonia exigua subsp. exigua John H. Thomas 1971-5-2 15854 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC439592  Claytonia parviflora subsp. parviflora W. R. Dudley 1896-4-17 s.n. San Mateo Pescadero Creek Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439993  Claytonia perfoliata subsp. mexicana George Oberlander 1949-3-2 18 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH3345  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-3-13 12410 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC443660  Claytonia perfoliata subsp. perfoliata Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  JROH3402  Clematis lasiantha Daniel Cohen 1953-4-11 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 1/3 of the way up Jasper Ridge road Comment
  JROH3409  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499372  Clintonia andrewsiana J. H. Thomas 1954-4-3 3823 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  CAS-BOT-BC499402  Clintonia andrewsiana D. D. Davis 1903-5-2 s.n. San Mateo Near La Hondas Comment
  CAS-BOT-BC499407  Clintonia andrewsiana Mrs. Donahue 1921-5-30 s.n. San Mateo Kings Mt. Comment
  OBI78393  Collinsia heterophylla Rimo Bacigalupi, G. T. Robbins 1954-6-18 4551 San Mateo Roadbank along Alpine Rd, 1/4 mi W of Skyline blvd 701 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-BC240921  Collinsia multicolor Alice Eastwood 1918-5-4 6883 San Mateo San Bruno hills, San Francisco Comment
  JEPS121051  Collinsia multicolor Janell M. Hillman 2012-4-29 San Mateo San Bruno Mountain. Comment
  JEPS85167  Collinsia multicolor Roy E. Buck 1987-5-2 566 San Mateo on ne-facing slope along Crystal Springs Rd. ca 300 m n Woodridge Rd. jct. (1.5 air km nne of confluence of San Mateo and Polhemus Creeks); Hillsborough, Canyon of San Mateo Creek 33 Comment
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  JROH4019  Collinsia sparsiflora var. collina John H. Thomas 1976-4-3 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CDA29087  Collomia heterophylla D. G. Kelch 2009-6-9 9 .404 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  RSA191938  Conioselinum gmelinii R. F. Thorne, P. Everett 1963-6-9 32237 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  UCD18542  Convolvulus arvensis Roman Gankin 1950-7-4 10 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  RSA176594  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC286212  Conyza canadensis J. H. Thomas 1963-7-19 10180 A San Mateo Ano Nuevo Point Comment
  JROH4026  Cordylanthus pilosus subsp. pilosus Richard L. Garber 1971-7-13 86 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4028  Cordylanthus pilosus subsp. pilosus John H. Thomas 1972-8-18 16151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  RSA100992  Cordylanthus rigidus subsp. rigidus G. Oberlander 1949-8-20 381 San Mateo San Andreas Valley, San Francisco Watershed Reserve. Comment
  UC885664  Cordylanthus rigidus subsp. rigidus Lewis S. Rose 1941-9-13 41441 San Mateo Crystal Springs Lake 182 Comment
  JROH4033  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; outskirts just down the road from the Escobar entrance Comment
  RSA130827  Cordylanthus rigidus subsp. rigidus W. R. Dudley 1902-9-1 s.n. San Mateo Whipple Road near Crystal Springs Lake. Comment
  CAS-BOT-BC101478  Corethrogyne filaginifolia C. F. B. 1902-5-10 810 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC101479  Corethrogyne filaginifolia Miss Eastwood 1896-6-1 s.n. San Mateo Spring Lake Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  SJSU15948  Corethrogyne filaginifolia John Rawlings, Ken Hickman 2016-5-26 1824 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
  UC87472  Corethrogyne filaginifolia Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  RSA176524  Cornus californica John H. Thomas 1961-5-5 9211 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  CDA34067  Cornus sericea D. G. Kelch 2011-3-13 11 .056-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH1885  Cornus sericea subsp. sericea John Hunter Thomas 1992-7-24 25383 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway and boat ramp, along causeway Comment
  UC796713  Coronopus didymus Ira L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach 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
  JROH1332  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC180363  Corylus cornuta subsp. californica W. R. Dudley 1896-2-15 s.n. San Mateo Alpine Road t Black Mt. Santa Cruz Peninsula Comment
  POM166453  Corylus cornuta var. californica A. D. E. Elmer 1903-03 4536 San Mateo Kings Mountain Comment
  RSA101050  Corylus cornuta var. californica G. Oberlander 1950-2-1 415 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC453502  Cotoneaster lacteus Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalups Parkway; San Bruno Mountains Comment
  CAS-BOT-BC287300  Cotula australis John H. Thomas 1965-4-29 10609 San Mateo San Bruno Mt in N part of county 396 Comment
  CAS-BOT-BC287301  Cotula australis John H. Thomas 1961-5-7 9261 San Mateo San Bruno Mt in N part of county 396 Comment
  CAS-BOT-BC287306  Cotula australis Walter & Irja Knight 1965-6-20 1253 San Mateo San Bruno Mt. Crystal Cave Canyon Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
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Oct 27 2021
  CAS-BOT-BC291449  Cotula coronopifolia W. R. Dudley 1897-5-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC291475  Cotula coronopifolia David D. Keck 1932-3-24 1403 San Mateo Redwood City at border of San Francisco Bay Comment
  UCD101809  Crassula aquatica Malcolm A. Nobs 1949-8-26 1580 San Mateo About 1 mile south of Half Moon Bay. Comment
  JROH3655  Crataegus monogyna John Hunter Thomas 1984-4-24 23299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM275977  Crataegus monogyna Lyman D. Benson 1930-5-3 2104 San Mateo Santa Cruz Mt. 244 Comment
  JROH1953  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4983  Crypsis schoenoides John Hunter Thomas 1980-11-27 20194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area 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
  JEPS127873  Cryptantha flaccida Adam C. Schneider 2013-5-17 183 San Mateo Crystal Springs Reservoir Comment
  JROH1365  Cryptantha micromeres John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1374  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5669  Cryptantha microstachys John Rawlings 2014-5-6 1223 B San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH1385  Cryptantha torreyana var. pumila Herbert Dengler 1961-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near round enclosure -- top of J.R. Comment
  RSA735620  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 423 San Mateo Pescadero County Park, on Butano Ridge, ca. 5.0-5.5 miles east of Dearborn Park Road 396 Comment
  CAS-BOT-BC80653  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo On the north bank of the North Fork of Butano Creek (common corner of Sections 11 & 12 and 13 & 14, range 4 W) Comment
  CAS-BOT-BC224413  Cuscuta californica Josephine D. Randall 1907-7-23 107 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UCD126313  Cuscuta indecora var. indecora K. M. Koch 1929-7-20 s.n. San Mateo Byron District, Coward. 487 Comment
  JROH5621  Cuscuta occidentalis Ann Lambrecht, Toni Corelli, John Rawlings 2010-8-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Old dock below Searsville Lab 104 Comment
  CDA39983  Cuscuta subinclusa E. L. Labadie Jr. 1960-9-7 s.n. San Mateo 11510 Terrace Drive, Los Altos. 0 Comment
  CAS-BOT-BC287329  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JEPS22117  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  UC1195195  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo between railroad tracks and El Camino Real (along creek running into Redwood Slough, near Maple Street, Redwood City); Redwood City, Redwood Slough 7 Comment
  CAS-BOT-BC190210  Cynodon dactylon Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along railroad tracks near PG&E gasline west of Quarry. 45 Comment
  JROH5004  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5591  Cynodon dactylon John Rawlings 2013-4-30 1184 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at the northeast edge of Rd B, a few meters from the old Boething Nursery Gate 74 Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  UCD119163  Cynoglossum grande Leslie Fenster 1964-3-22 22 San Mateo Crystal Spring Lake drainage area, Sawyer Ridge Road, 4 miles from Skyline. 152 Comment
  SEINET5546120  Cynoglossum grande H. S. Gentry 1931-1 14 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH5015  Cynosurus echinatus John Hunter Thomas 1992-6-2 25365 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road from picnic area to the new bridge, west of the dam Comment
  JROH4379  Cyperus eragrostis John Hunter Thomas 1978-5-23 19224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC457144  Cyperus eragrostis David D. Keck 1263 San Mateo desiccated swamp near Searsville Lake 75 Comment
  CAS-BOT-BC114463  Cyperus eragrostis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Industrial Park Comment
  JROH4395  Cyperus erythrorhizos John Hunter Thomas 1979-9-9 19714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC133769  Cypripedium fasciculatum Miss. Barbara Donahoe; Miss. Louise Boyd 1923-4-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH20  Cystopteris fragilis Herbert Dengler 1961-4-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek Comment
  RSA176822  Cytisus monspessulanus John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 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
  POM265226  Danthonia californica var. americana I. L. Wiggins 1929-5-10 3673 San Mateo Coastal bluff at Pigeon Point Comment
  SEINET12118157  Daucus pusillus Unknown 1932-1 9190 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CHSC373  Deinandra corymbosa B. Richardson 1929-5-11 San Mateo Moss Beach. 6 Comment
  SFV3974  Deinandra corymbosa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  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
  CAS-BOT-BC287371  Deinandra corymbosa A. Kellogg; W. G. W. Harford 1868-6-10 486 San Mateo San Bruno Comment
  CAS-BOT-BC299215  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine, San Bruno Mountain Comment
  CAS-BOT-BC299225  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-3-24 12786 San Mateo Near Pescadero 10 Comment
  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
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299230  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1295 San Mateo Skyline Boulevard, summit of Cahill Ridge, 1.5 miles south of Half Moon Bay Road 450 Comment
  CAS-BOT-BC299231  Deinandra corymbosa subsp. corymbosa David D. Keck 1934-7-7 2933 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking ocean Comment
  UC9130  Delphinium californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC9215  Delphinium californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain, Romanzoffia Ravine 396 Comment
  JROH3427  Delphinium californicum subsp. californicum John H. Thomas 1967-5-31 12926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC10290  Delphinium hesperium Ned Cahill 1974-5-13 277 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC10291  Delphinium hesperium P. H. Raven 1949-6-13 834 San Mateo near Belmont 121 Comment
  POM270764  Delphinium hesperium Lyman Benson 1930-5-12 2124 San Mateo Lake Searsville. 152 Comment
  RSA10347  Delphinium hesperium H. A. Barker 1926-5-5 578 San Mateo Near Searsville Lake Comment
  JROH3447  Delphinium hesperium subsp. hesperium John Hunter Thomas 1980-5-6 19927 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM177534  Delphinium patens W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC116524  Delphinium patens subsp. patens J. H. Thomas 1954-5-7 4067 San Mateo Near Skyline Blvd. about 2 miles SW of Black Mountain 655 Comment
  JROH3453  Delphinium patens subsp. patens John H. Thomas 1975-4-5 17711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12086776  Delphinium variegatum L. S. Rose 1932-1 32138 San Mateo Redwood City Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  JROH3467  Delphinium variegatum subsp. variegatum John Hunter Thomas 1980-5-6 19926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC630  Dendromecon rigida subsp. rigida George Thomas Oberlander 1950-3-11 414 San Mateo Southern boundary on Cahill Ridge. Comment
  CAS-BOT-BC192596  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1932-5-26 s.n. San Mateo Hillside Drive, Burlingame Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  UCD164702  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD63756  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1921-6-3 San Mateo Millbrae Ranch. Comment
  CAS-BOT-BC192634  Deschampsia danthonioides H. A. Dutton 1900-4-25 s.n. San Mateo Woodside Comment
  JROH5057  Deschampsia danthonioides John Rawlings 2007-5-2 1019 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off (south side) Road F at edge of chaparral in vernally wet area. 167 Comment
  POM190539  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  UC9936  Dicentra formosa J. Burtt Davy 1895-4-21 1060 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC911  Dicentra formosa subsp. formosa LeRoy Abrams 1902-4-13 2336 San Mateo Crystal Springs Comment
  CAS-BOT-BC500895  Dichelostemma capitatum Fred Hemphill 1973-5-6 836 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC1300934  Dichelostemma capitatum Helen K. Sharsmith 1963-2-16 5140 San Mateo above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC500933  Dichelostemma capitatum Catherine A. Toschi 1963-2-23 63 :21 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  SBBG39530  Dichelostemma capitatum subsp. capitatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  JEPS125950  Dichondra donelliana D. W. Taylor 2000-7-20 17532 San Mateo Montara Mountain, along dirt road 1 mile W from North Peak Comment
  JROH5083  Digitaria sanguinalis Toni Corelli 2006-9-20 328 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 12 in the dry stream bed of the Corte Madera Creek 109 Comment
  CAS-BOT-BC150452  Diplacus aurantiacus Margaret A. Barry 1937-5-23 146 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC150457  Diplacus aurantiacus Viola Nichols 1911-5-6 1006 San Mateo Belmont, 2nd hill Comment
  SEINET8390048  Diplacus aurantiacus Wesley Griesel 1963-6-20 814 San Mateo road from Palo Alto to State Hwy #5. 457 Comment
  RSA133892  Dipsacus sativus John H. Thomas 1958-6-11 7229 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  CAS-BOT-BC121867  Dirca occidentalis G. Edelbrock 1975-2-8 1 San Mateo San Francisco Watershed 152 Comment
  JROH4198  Dirca occidentalis John H. Thomas 1958-2-15 6980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM274504  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  UC518034  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  CAS-BOT-BC128568  Dodecatheon E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  UC673409  Dodecatheon clevelandii subsp. patulum Elmer I. Applegate 1895-3-9 324 San Mateo near Woodside; near Woodside Comment
  JROH3385  Dodecatheon hendersonii John H. Thomas 1968-3-17 14179 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287492  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-28 2609 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CDA39077  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  CAS-BOT-BC159533  Drymocallis glandulosa var. glandulosa Ethel Crum 1930-4-27 707 San Mateo Woodside 152 Comment
  CAS-BOT-BC159543  Drymocallis glandulosa var. glandulosa Javier Penalosa 1963-2-23 2634 San Mateo San Bruno Mtn., ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC159504  Drymocallis glandulosa var. glandulosa Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Grassy slope above Hillside Blvd., South San Francisco - San Bruno Mountain Comment
  CAS-BOT-BC143407  Drymocallis glandulosa var. wrangelliana Elizabeth McClintock 1972-4-23 s.n. San Mateo Above Fern Rock Comment
  JROH43  Dryopteris arguta L. Fletcher 1986-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC1063776  Dryopteris arguta G. E. Sindel 1935-8-2 321 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  POM193661  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mountains Comment
  POM281638  Dryopteris arguta Lyman Benson 1928-12-15 829 San Mateo Searsville Lake Dam 122 Comment
  SEINET11619627  Dryopteris arguta Unknown 1929-1 7295 San Mateo Kings Mt Comment
  SEINET11619628  Dryopteris arguta Unknown 1932-1 8923 San Mateo Woodside Comment
  UC429788  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  UCR130218  Dudleya caespitosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4995 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC410865  Dudleya caespitosa Mrs. E. C. Sutliffe 1933-7-23 s.n. San Mateo Grown from plants collected near Ano Nuevo Pt. Comment
  CAS-BOT-BC428362  Dudleya farinosa Ira L. Wiggins 1929-7-4 3802 San Mateo Near the mouth of Pescadero Creek, 2 miles from town of Pescadero Comment
  CAS-BOT-BC428367  Dudleya farinosa Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH1813  Dysphania ambrosioides John H. Thomas 1976-10-16 18419 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  UCD61202  Ehrharta erecta Robert E. Preston 2004-6-10 2252 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 234 Comment
  UC306633  Eleocharis macrostachya A. D. E. Elmer Jul 1903 4746 San Mateo San Pedro Comment
  SEINET7586900 Image available Eleocharis palustris Charles Piper Smith 1905-4-26 875 San Mateo Portola, Searsville Lake. Comment
  JROH5101  Elymus glaucus subsp. glaucus John H. Thomas 1962-5-31 9900 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge. Comment
  CAS-BOT-BC235205  Elymus multisetus Ned Cahill 1974-5-30 306 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5127  Elymus multisetus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204303  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  CDA2063  Elytrigia repens R. G. Lauder 1958-10-2 1451 San Mateo San Mateo. 0 Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  RSA185792  Epilobium brachycarpum John H. Thomas 1966-9-13 12392 San Mateo Pacifica. San Pedro Valley, near St. Peter s Catholic Church near Oostad Blvd. along Linda Mar Blvd. Comment
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  UC1073372  Epilobium canum subsp. canum George B. Rossbach 1955-10-23 364 San Mateo w Crystal Springs Lake (steep bank above road); Cahill Ridge Comment
  UC124424  Epilobium canum subsp. canum C. F. Baker 1902-10-20 52 San Mateo summit of Coast Range Comment
  UCD105431  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Road, Cahill Ridge. 243 Comment
  JROH3056  Epilobium ciliatum subsp. ciliatum John Rawlings 2004-7-4 0924 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near Dennis Martin site 71 Comment
  JROH3058  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
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  UC1191717  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs and S. Galen Smith 1949-8-25 1548 San Mateo marshes Sharp Park Comment
  RSA0028797  Epilobium ciliatum subsp. watsonii Lyman Benson 1934-7-4 6104 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA0065214  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay. 3 Comment
  CAS-BOT-BC57028  Equisetum arvense A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  JROH73  Equisetum telmateia subsp. braunii John Hunter Thomas 1982-11-6 21206 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  JROH5147  Eragrostis pectinacea var. pectinacea John Rawlings 2012-7-27 1124 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the NE corner of the Caretaker's Residence by the garden fence and the blackberry bush. 106 Comment
  CAS-BOT-BC291202  Erechtites glomeratus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3148  Eriastrum abramsii John Hunter Thomas 1977-6-16 18770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments
Dec 11 2013
  JROH646  Erigeron bonariensis John H. Thomas 1976-10-16 18411 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH648  Erigeron canadensis John H. Thomas 1964-11-15 10524 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  CAS-BOT-BC300613  Erigeron foliosus var. franciscensis Fred Hemphill 1973-5-14 813 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC295086  Erigeron glaucus Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC295089  Erigeron glaucus Elsie M. Zeile 1921-7-30 1058 San Mateo Salada Comment
  POM204314  Erigeron glaucus I. L. Wiggins 1929-7-4 3798 San Mateo Pescadero Beach Comment
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  UC1536738  Erigeron glaucus G. H. True Jr. 1936-6-7 482 San Mateo top of seaside bluff at cove 2 mi s of Pescadero 15 Comment
  JROH692  Erigeron karvinskianus Herbert Dengler 1965-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Cr. about 2' above water - N.W. of Searsville Rocks - (about 200' below Dennis Martin mill site of ca. 1849) Comment
  CAS-BOT-BC300065  Erigeron philadelphicus Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. Colma Canyon and April Brook junction Comment
  CAS-BOT-BC344850  Erigeron philadelphicus Peter Rubtzoff; Roman Gankin; Elizabeth McClintock; Bill Burley 1979-6-7 9288 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH694  Erigeron sumatrensis Toni Corelli 2011-8-30 371 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  CAS-BOT-BC216250  Eriodictyon californicum Volney Rattan 1881-1-1 s.n. San Mateo Belmont Comment
  JROH2727  Eriodictyon californicum Raymond R. White 1974-6-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; area H Comment
  POM65463  Eriodictyon californicum A. D. E. Elmer 1903-04 4801 San Mateo Lake San Andreas Comment
  UC24063  Eriodictyon californicum J. Burtt Davy 1893-6-17 720 San Mateo Belmont 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
  JEPS111095  Eriogonum gracile Zoe Ellis Chandik 1992-9-19 s.n. San Mateo Hwy 280 right-of-way, west side bordering Edgewood County Nature Preserve/San Francisco watershed lands (triangle) Comment
  CHSC28679  Eriogonum latifolium M. S. Taylor 1978-7-31 1871 San Mateo Ano Nuevo State Reserve. 0 Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  POM165067  Eriogonum latifolium A. D. E. Elmer 1903-07 4557 San Mateo Half Moon Bay. Comment
  RSA393631A  Eriogonum latifolium E. A. Purer 1933-7-27 5370 San Mateo 2 miles south of Pigeon Point. Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  SEINET11938065  Eriogonum latifolium E. H. Graham 1931-1 6932 San Mateo Ano Nuevo Point, S of San Francisco Comment
  CAS-BOT-BC266075  Eriogonum luteolum Ned Cahill 1974-10-8 382 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  JROH3234  Eriogonum luteolum var. luteolum John Hunter Thomas 1981-7-24 20728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC268997  Eriogonum nudum var. auriculatum J. H. Thomas 1958-6-11 7226 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC269002  Eriogonum nudum var. auriculatum Josephine D. Randall 1907-7-6 284 San Mateo Santa Cruz Peninsula. Iverson's, near Peters Creek Comment
  RSA95580  Eriogonum nudum var. auriculatum L. S. Rose 1953-6-29 53047 San Mateo 0.5 mile E of Crystal Springs Lake on road to Belmont. Comment
  SEINET11938128  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  SEINET5728888 Image available Eriogonum vimineum Delzie Demaree 1933-1 10514 San Mateo Sky line Drive. Comment
  CAS-BOT-BC304070  Eriophyllum confertiflorum Philip Wheeler 1965-5-12 s.n. San Mateo SW canyon below NBC towers, San Bruno Mt Comment
  CAS-BOT-BC304071  Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC304076  Eriophyllum confertiflorum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mt. Lower slope on S side above Olivet Cemetary Comment
  CAS-BOT-BC304078  Eriophyllum confertiflorum Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC304079  Eriophyllum confertiflorum C. F. Leitholt 1894-5-30 s.n. San Mateo Santa Cruz Mt Peninsula. Hill back of Spring Valley Water Works below Belmont Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23786  Eriophyllum lanatum Mary Katherine Wicksten 1971-6-17 68 San Mateo Huddart Park; along road to family campground, near Madrone Area Comment
  CAS-BOT-BC301270  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera road down to Lumber Camp Comment
  CAS-BOT-BC301271  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By county road below Dam, San Mateo Creek Comment
  JEPS34328  Eriophyllum lanatum var. arachnoideum L. R. Heckard and Rimo Bacigalupi 1963-7-2 1334 San Mateo above summit of old country road; Montara Mt. 304 Comment
  CHSC335  Eriophyllum staechadifolium H. Holder 1949-5-15 San Mateo Near San Francisco bay. 9 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
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  UCR240615  Eriophyllum staechadifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3531 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
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  UC484306  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 mi s San Gregorio (hills near the ocean); ocean Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  CDA5406  Eriophyllum staechadifolium var. artemisiifolium Wm. Davis 1958-6-6 San Mateo Pedro Valley, Sharp Park. 0 Comment
  JEPS121446  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-2-2 14 San Mateo Crystal Springs Reservoir 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-BC54863  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54864  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  CAS-BOT-BC54886  Erysimum franciscanum James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs. Comment
  CAS-BOT-BC54891  Erysimum franciscanum Vernal L. Yadon 1968-4-5 s.n. San Mateo Just south of Ano Nuevo Point. Comment
  POM143100  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  POM143484  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lake Comment
  POM210208  Erysimum franciscanum H. E. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  RSA101844  Erysimum franciscanum G. B. Rossbach 1939-3-26 901 San Mateo Very near Sharp Park (Salada Beach) Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) Comment
  UC1034705  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo upper n slope n radio tower; San Bruno Mt. Comment
  UC1034711  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo rocky seaward (but not outermost) slope just inland and ne Devil's Slide (w edge of mts); Montara Mountains Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  UC1034944  Erysimum franciscanum G. B. and R. P. Rossbach 1938-3-15 800 San Mateo rocky knolls and roadbank on e side of lake Crystal Springs Lake 106 Comment
  UC136024  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley Comment
  CAS-BOT-BC403535  Eschscholzia californica Margaret A. Barry 1937-4-21 20 San Mateo On Coal Mine Ridge Comment
  JROH3096  Eschscholzia californica John H. Thomas 1969-4-12 14881 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM149416  Eschscholzia californica C. F. Baker 1903-5-14 3256 San Mateo Crystal Springs, Lake Comment
  UC204262  Eschscholzia californica A. D. E. Elmer June, 1903 4680 San Mateo Crystal Springs Lake Comment
  UC2049884  Eschscholzia californica H. W. Johansen 1955-4-3 1 San Mateo Jones Gulch, 5 miles S of 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-BC202742  Euonymus occidentalis Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM202650  Euonymus occidentalis Alice Eastwood 1933-5-31 18843 San Mateo Butano Canyon. Comment
  POM278190  Euonymus occidentalis Lyman Benson 1930-5-26 2132 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA116765  Euonymus occidentalis H. L. Mason 1921-1 s.n. San Mateo San Francisquito Creek near Searsville Lake. Comment
  JROH1799  Euonymus occidentalis var. occidentalis Lyman Benson 1930-5-26 2132 San Mateo Jasper Ridge Biological Preserve, Stanford University; Lake Searsville 152 Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  UC635625  Euonymus occidentalis var. occidentalis Herbert L. Mason 1924-10-8 1110 San Mateo 2 1/2 mi. w. Palo Alto (n.w. end of Jasper Ridge); Jasper Ridge Comment
Read comments
Sep 19 2011
  RSA176579  Euphorbia lathyris John H. Thomas 1964-6-28 10435 San Mateo Along Half Moon Bay - Crystal Springs Lake road, about 2.2 mi, e of Half Moon Bay. Comment
  CDA20071  Euphorbia lathyris J. Beall 2002-10-7 PDR 065872 San Mateo San Francisco Bay Area; 1/3 mi E of Butano Cutoff on Pescadero Creek Rd 0 Comment
  RSA181179  Euphorbia lathyris P. H. Raven 1964-9-13 19672 San Mateo Near Tunitas, north of San Gregorio. Comment
  JROH1967  Euphorbia oblongata John Rawlings 2012-10-15 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site 71 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
  CDA19205  Euphorbia oblongata D. Pendleton 2001-4-3 PDR 064453 San Mateo San Francisco Peninusla; Along Sandhill Rd, next to Jasper Ridge Biological Reserve, Portola Valley. 0 Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 0 Comment
  JROH5892  Euphorbia oblongata Ann Lambrecht 2008-9-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; about 3m uphill to the west from Bear Creek Crossing, at the Preserve boundary Comment
  POM137493  Euphorbia spathulata A. D. E. Elmer 1903-04 4740 San Mateo Crystal Springs Lake. Comment
  UC202830  Euphorbia spathulata A. D. E. Elmer Apr 1903 4740 San Mateo Crystal Springs Lake Comment
  RSA572320  Euphorbia spathulata Robert F. Hoover 1938-4-27 3256 San Mateo Four miles south of San Jose. Comment
  CAS-BOT-BC310624  Eurybia radulina A. D. E. Elmer 1903-7-1 4973 San Mateo Portola Comment
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  JROH5167  Festuca arundinacea John Hunter Thomas 1989-6-6 24761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5689  Festuca bromoides John Rawlings 2015-2-21 1281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 on north side of Jasper Ridge 167 Comment
  JROH5178  Festuca californica W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  RSA86775  Festuca californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278360  Festuca californica subsp. californica Catherine A. Toschi 1963-3-17 63 :50 San Mateo San Bruno Mountain. Northeast slope below radio station Comment
  UCD65896  Festuca californica subsp. californica Rimo Bacigalupi; S. G. Smith, L. T. Dempster, and G. T. Robbins 1956-5-15 5645 San Mateo On eastern flank of first ridge west of San Andreas Lake, on road to Pilarcitos Lake. 198 Comment
  RSA135730  Festuca californica var. californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  JROH6208  Festuca myuros John Rawlings 2014-3-25 1240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 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
  JROH5281  Festuca perennis John H. Thomas 1967-6-1 12956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5282  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI21962  Festuca perennis Lewis S. Rose 1956-7-2 56116 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  CAS-BOT-BC279052  Festuca rubra A. G. Vestal 1926-5-19 s.n. San Mateo North end of San Bruno Mt Comment
  JROH2975  Ficus carica John Hunter Thomas 1979-9-9 19710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253346  Foeniculum vulgare A. C. Sanders 2014-8-3 41231 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA95475  Fragaria californica L. S. Rose 1954-5-17 54044 San Mateo Kings Mtn. 610 Comment
  POM182829  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23974  Fragaria vesca Mary Katherine Wicksten 1971-7-8 160 San Mateo Huddart Park, Madrone Area Comment
  JROH3672  Fragaria vesca John Hunter Thomas 1990-4-26 24812 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near redwood grove near Rattlesnake Rock Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  CAS-BOT-BC457525  Fragaria vesca subsp. californica Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue, San Bruno Mountain Comment
  CAS-BOT-BC457530  Fragaria vesca subsp. californica J. H. Thomas 1949-4-14 281 San Mateo Kings Mountain Comment
  CAS-BOT-BC52685  Frangula californica subsp. californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC52688  Frangula californica subsp. californica A. D. E. Elmer 1903-7-1 4772 San Mateo Pilarcitos Stone Dam Comment
  JEPS127867  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 170 San Mateo Crystal Springs Reservoir Comment
  JROH3539  Frangula californica subsp. californica John H. Thomas 1971-5-30 15966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53600  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC53602  Frangula californica subsp. tomentella Alice Eastwood 1922-5-30 11333 San Mateo Crystal Springs lakes Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6671082 Image available Frankenia grandifolia Lewis S. Rose 1938-1 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  SD38247  Frankenia salina Edith A. Purer 1933-8-13 5415 San Mateo Near bay, Belmont. Comment
  SEINET6694664 Image available Fraxinus oregona W. R. Dudley 1893-1 San Mateo San francisquita creek near big tree Comment
  CAS-BOT-BC130134  Fritillaria affinis John Hunter Thomas 1954-4-3 3821 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC130144  Fritillaria affinis W. R. Dudley 1893-3-24 s.n. San Mateo Below B. Heywood's, Pescadero Creek Comment
  RSA196570  Fritillaria affinis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula; ravine above Pillar Point and below Montara Mountains Comment
  SEINET12054471  Fritillaria affinis Cummings, McCallum, G. A. 1933-1 s.n. San Mateo near La Honda Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  CAS-BOT-BC130380  Fritillaria liliacea George Oberlander 1950-3-18 517 San Mateo East Upper Crystal Spr. Lake Comment
  CAS-BOT-BC130381  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes 152 Comment
  CAS-BOT-BC130386  Fritillaria liliacea John H. Thomas 1969-4-30 15031 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC290701  Fumaria Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  JROH3791  Galium murale John H. Thomas 1967-6-1 12967 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3799  Galium murale John H. Thomas 1976-4-30 18103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA124751  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  JROH3792  Galium murale John H. Thomas 1968-3-17 14189 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130817  Galium nuttallii Josephine Randall 1907-6-8 352 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  JROH3813  Galium porrigens var. porrigens John Hunter Thomas 1983-2-21 21281 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC496159  Galium porrigens var. porrigens W. F. Wight 1900-1-28 San Mateo trail to Bukhorn Ranch above Prestons (old La Honda Rd.) Comment
  JEPS14551  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo near stream-bed Lake Pilarcitos Comment
  JROH799  Gamochaeta ustulata John Hunter Thomas 1985-5-7 23644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UC1140923  Garrya elliptica W. R. Dudley 1895-2-10 San Mateo San Mateo Ravine Santa Cruz Peninsula (by road above point of rocks) Comment
  JROH5193  Gastridium phleoides John Hunter Thomas 1983-6-29 22719 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC219150  Genista monspessulana Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo Brisbane Comment
  JROH2000  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2006  Genista monspessulana John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH2017  Genista monspessulana John Hunter Thomas 1986-5-8 24023 San Mateo Jasper Ridge Biological Preserve, Stanford University; near smaller part to Searsville Lake Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  RSA0028370  Geranium carolinianum A. D. E. Elmer 1903-06 4780 San Mateo San Mateo Comment
  RSA0028486  Geranium dissectum John H. Thomas 1954-4-3 3825 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio. 61 Comment
  POM65904  Gilia achilleifolia C. F. Baker 1902-4-6 467 San Mateo Crystal Springs Lake. Comment
  JROH3160  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1992-4-23 25148 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3166  Gilia clivorum John Hunter Thomas 1981-4-27 20506 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5682  Gilia clivorum John Rawlings 2015-3-15 1354 San Mateo Jasper Ridge Biological Preserve, Stanford University; sepentine prairie on ridge top south of a shallow drainage 195 Comment
  JEPS89470  Glebionis coronaria Dean W. Taylor 1988-4-8 9516 San Mateo n slope of se ridge of San Bruno Mountain ((near the ridgecrest), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain, Santa Cruz Mountains); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  RSA184927  Gnaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City 91 Comment
  RSA22173  Gnaphalium luteoalbum L. R. Abrams, I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  UCR254881  Gnaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  POM58030  Gnaphalium stramineum E. B. Copeland 1903-6-18 3211 San Mateo Montara Point. Comment
  UCR252691  Grindelia A. C. Sanders 2014-8-3 41238 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  JROH812  Grindelia camporum H. J. Dengler 1972-10-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above kingfisher nesting site Comment
  CAS-BOT-BC304514  Grindelia hirsutula J. H. Thomas 1954-5-28 4233 San Mateo Along Bayshore Highway about 2 mi. south of San Francisco Airport Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC304567  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  CAS-BOT-BC304524  Grindelia hirsutula W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. South side Montara Mt Comment
  JROH814  Grindelia hirsutula John H. Thomas 1961-6-14 9538 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end of Lake Comment
  JROH816  Grindelia hirsutula D. E. Breedlove 1971-5-31 19369 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH818  Grindelia hirsutula John Hunter Thomas 1978-5-12 19203 San Mateo Jasper Ridge Biological Preserve, Stanford University; draw to Ridge from near the dam Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  RSA638982  Grindelia stricta var. platyphylla R. F. Thorne, Percy C. Everett 1965-8-1 35075 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  JROH847  Helenium puberulum John Hunter Thomas 1992-6-8 25369 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  CAS-BOT-BC309544  Helenium puberulum A. D. E. Elmer 1903-7-1 4968 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UC917226  Helenium puberulum W. A. Harvey and J. M. Tucker 1948-6-28 1701 San Mateo on ridge ca 3 mi n Pescadero Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  RSA0012931  Helianthus californicus L. R. Abrams 1902-09 2989 San Mateo Menlo Park. Comment
  SD39698  Heliotropium curassavicum Edith A. Purer 1932-7-18 4010 San Mateo Half Moon Bay Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC305924  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francisquito Creek, ca 150 m upstream from Pope Street bridge, San Mateo County side of center line, Menlo Park Comment
  POM284517  Hemizonia congesta Lyman Benson 1934-7-29 6107 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC313453  Hemizonia congesta subsp. luzulifolia Josephine D. Randall 1907-7-23 78 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC314917  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1962-11-4 10014 San Mateo Jasper Ridge, Stanford University Biological Experimental Area near Westridge end Comment
  JEPS44416  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1965-8-27 65094 San Mateo w Redwood City; Emerald Lake 182 Comment
  UCD133004  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  OBI16216  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emeral Lake, W of Redwood City 244 Comment
  SEINET6205044  Hemizonia corymbosa L. S. Rose 1965-1 65100 San Mateo Skyline Blvd & Halt Moon Bay Rd Comment
  SEINET7883475 Image available Hemizonia corymbosa Lewis S. Rose 1937-1 37644 San Mateo Moss Beach 15 Comment
  POM216539  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1931-10-5 1295 San Mateo Skyline Blvd, 1.5 miles S of Half Moon Bay road, summit of Cahil Ridge. 450 Comment
  RSA94181  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-11 1765 San Mateo 1 mile E of San Gregorio. 50 Comment
  POM360315  Hemizonia luzulifolia L. S. Rose 1937-9-21 37662 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  POM55221  Hemizonia luzulifolia A. D. E. Elmer 1903-05 4805 San Mateo Crystal Springs Lake Comment
  RSA133900  Hemizonia luzulifolia John H. Thomas 1958-6-11 7228 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  RSA81634  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1908-08 s.n. San Mateo Summit of Crystal Springs-Belmont Road. Comment
  POM49411  Hemizonia pungens subsp. maritima L. R. Abrams 1903-9-26 4017 San Mateo Bay near Menlo Park. Comment
  RSA187311  Hesperocnide tenella John H. Thomas 10307 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC176205  Hesperolinon congestum L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake west of Redwood City Comment
  JEPS122848  Hesperolinon congestum Adam C. Schneider 2013-5-17 172 San Mateo Crystal Springs Reservoir Comment
  SJSU7855  Hesperolinon congestum J. R. Verbarg 1955-5-14 San Mateo Redwood City Hills 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
  JROH2924  Hesperolinon micranthum John H. Thomas 1967-5-31 12943 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI12527  Hesperolinon micranthum Lewis S. Rose 1956-6-11 56093 San Mateo Emerald Lake, Hills W of Redwood city 183 Comment
  CAS-BOT-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  UC311178  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148463  Heteromeles arbutifolia John H. Thomas 1969-10-19 15485 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH3679  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072374  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SD49795  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. North central portion of ridge. 152 Comment
  RSA640952  Heterotheca sessiliflora subsp. bolanderi R. F. Thorne, George B. Everett 1963-6-9 32215 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC310763  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1895-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near Bay back of Menlo Park Comment
  RSA184913  Heterotheca sessiliflora subsp. echioides L. S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain. 366 Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420900  Heuchera micrantha var. erubescens Josephine D. Randall 1907-7-7 s.n. San Mateo Kings Mt Comment
  CAS-BOT-BC424381  Heuchera micrantha var. hartwegii W. R. Dudley 1905-6-18 s.n. San Mateo Near Pescadero Creek; Inverson's Old Place; Santa Cruz Mountain Peninsula Comment
  POM209883  Hieracium albiflorum D. D. Keck 1934-7-7 2927 San Mateo Kings Mountain, just east of summit. 549 Comment
  POM207955  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo West side of King's Mountain Comment
  CAS-BOT-BC289249  Holcus lanatus George Oberlander 1949-7-10 262 San Mateo San Francisco Watershed Reserve, south boundary Comment
  JROH5207  Holcus lanatus John H. Thomas 1973-6-15 16837 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
  JROH5216  Holcus lanatus John Hunter Thomas 1988-6-2 24501 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  POM139637  Holodiscus discolor A. D. E. Elmer 1903-06 4274 San Mateo San Mateo Comment
  RSA176728  Holodiscus discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC150060  Holodiscus discolor var. discolor Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC150061  Holodiscus discolor var. discolor Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon Comment
  CAS-BOT-BC150066  Holodiscus discolor var. discolor Lucile Roush 1918-3-31 s.n. San Mateo Sierra Morena Comment
  CAS-BOT-BC284678  Hordeum brachyantherum subsp. brachyantherum H. A. Borthwick 1921-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  CAS-BOT-BC284679  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1463 San Mateo Belmont Comment
  CAS-BOT-BC284683  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1961-5-13 9341 San Mateo At Franklin Point Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5222  Hordeum brachyantherum subsp. californicum John H. Thomas 1975-5-26 17916 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5229  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-4-27 20510 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5242  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1980-5-20 19982 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5249  Hordeum marinum subsp. gussoneanum Winkie Lennihan 1989-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10595756  Hordeum murinum Delzie Demaree 1933-7-27 Demaree 10553 San Mateo Stabilized sand dunes 2 miles S of Pigeon Point. Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JROH5254  Hordeum murinum subsp. glaucum John Rawlings 2013-4-30 1177 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road B in SLAC Corridor. Comment
  CAS-BOT-BC173824  Hordeum murinum subsp. leporinum Peter Rubtzoff 1976-6-13 8630 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC271351  Hordeum vulgare John H. Thomas 1969-4-24 14922 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC271356  Hordeum vulgare William R. Dudley 1895-6-1 s.n. San Mateo Near Palo Alto Comment
  CAS-BOT-BC271358  Hordeum vulgare Ned Cahill 1974-5-13 269 San Mateo Near the intersection of Canada and Edgwood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC536142  Horkelia californica Josephine D. Randall 1907-7-23 338 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC536147  Horkelia californica L. R. Abrams; I. L. Wiggins 1939-6-3 436 San Mateo Half mile inland from the sand dunes, Ano Nuevo Point Comment
  JROH3703  Horkelia californica var. californica John Rawlings 2013-5-21 1163 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along short lateral from Trail 12 to old quarry. 109 Comment
  SEINET6755152  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco. ( on the Lake Merced side of the Ocean Shore tracks) Comment
  CAS-BOT-BC143921  Horkelia cuneata var. sericea Phillip C. Wheeler 1965-5-11 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC143926  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC143928  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  SD27829  Hosackia gracilis Carl B. Wolf 1929-5-10 3703 San Mateo Pigeon Point, south of Pescadero 99 Comment
  SD39812  Hosackia gracilis Marie Cummings 1933-5-17 3674 San Mateo Moss Beach Comment
  SD37817  Hosackia stipularis Edith A. Purer 1932-7-18 4004 San Mateo King's Mountain, mountainside Comment
  JROH5610  Hyacinthoides hispanica John Rawlings 2014-4-1 1213 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters east of Trail 20. 85 Comment
  JROH2770  Hypericum calycinum Toni Corelli 2008-10-15 355 San Mateo Jasper Ridge Biological Preserve, Stanford University; west of Road C, beyond Trail 1, before low flow crossing 83 Comment
  CDA34310  Hypericum canariense C. Kozak 2011-6-16 we 543 San Mateo San Francisco Bay Area; Cloverdale Ranch, Pescadero. On the east(inland) side of Highway 1 approx. 1.1 mi. N of Gazos Creek Rd. 0 Comment
  CAS-BOT-BC311395  Hypochaeris glabra Fred Hemphill 1973-5-14 820 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH915  Hypochaeris glabra John H. Thomas 1967-5-10 12859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18313  Hypochaeris glabra C. B. Wolf 1927-7-14 598 San Mateo Summit of Kings Mountain Rd. Comment
  CHSC364  Hypochaeris radicata J. Turner 1930-5-2 San Mateo Moss Beach. 6 Comment
  JROH930  Hypochaeris radicata John H. Thomas 1974-5-19 17383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152265  Iris douglasiana John H. Thomas 1961-5-7 9304 San Mateo San Bruno Mountain, in northern part of county. 305 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
  RSA6296  Iris douglasiana D. D. Keck 1932-5-6 1486 San Mateo Hills just west of Millbrae Highlands 120 Comment
  UC143465  Iris longipetala C. F. Baker 1902-3-22 348 San Mateo South San Francisco Comment
  JROH4430  Iris pseudacorus John H. Thomas 1961-5-5 9221 San Mateo Jasper Ridge Biological Preserve, Stanford University. Swampy area at 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
  CAS-BOT-BC112612  Isolepis cernua John Hunter Thomas 1959-7-8 8017 San Mateo Low moist coastal bluffs as Pescadero Beach. Comment
  CAS-BOT-BC112617  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  JEPS91027  Isolepis cernua Dean W. Taylor 1991-5-20 11793 San Mateo Santa Cruz Mountains, Pescadero Creek 0.3 mi s ofrom the creek mouth, w of Highway 1 Pescadero Creek; Santa Cruz Mountains, Pescadero Creek 9 Comment
  CAS-BOT-BC112622  Isolepis cernua W. R. Dudley 1909-10-4 s.n. San Mateo E. twin-pond, North San Mateo County. Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  UCD37961  Isolepis cernua Beecher Crampton 1962-6-11 6499 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  UCD49893  Isolepis cernua S. Galen Smith; Malcolm A. Nobs 1949-8-25 1565 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  CAS-BOT-BC101874  Juglans J. H. Thomas 1954-4-21 3943 San Mateo San Francisquito Creek near SPRR tracks between Palo Alto and Menlo Park Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  CAS-BOT-BC173699  Juncus bufonius Peter Rubtzoff 1977-6-7 9029 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5946  Juncus bufonius var. bufonius John Rawlings 2017-4-9 2016 San Mateo Jasper Ridge Biological Preserve, Stanford University; along entrance road near Sand Hill Gate 117 Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  RSA368183  Juncus bufonius var. bufonius L. S. Rose 1932-6-26 32362 San Mateo Pilarcitos Lake. Comment
  SJSU16038  Juncus bufonius var. bufonius Toni Corelli, John Rawlings 2016-4-29 1765 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  JROH4457  Juncus bufonius var. occidentalis John H. Thomas 1955-5-6 4986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JROH4463  Juncus bufonius var. occidentalis John H. Thomas 1968-4-19 14303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173814  Juncus effusus var. brunneus Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCR244745  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH4497  Juncus occidentalis John Hunter Thomas 1988-5-25 24489 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  JEPS67130  Juncus phaeocephalus unknown 1925-5-28 2 San Mateo Salada Comment
  SD260865  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Central Coast: San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence. Dirt roadside near a marsh. 182 Comment
  CAS-BOT-BC210072  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1975-9-11 s.n. San Mateo Pond NW of and across odl Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  UCR279840  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-8-17 9259 San Mateo San Francisco Bay Region, San Bruno Mountain; 'saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  JROH4506  Juncus xiphioides John H. Thomas 1967-6-1 12977 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4046  Kickxia spuria John Hunter Thomas 1981-9-24 20753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  JROH4040  Kickxia spuria Herbert Dengler 1958-9-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N.E. Nolan Ridge (the ridge N.E. of Corte Madera Cr.) by trail Comment
  JROH4048  Kickxia spuria John Hunter Thomas 1981-10-25 20772 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  RSA18374  Koeleria macrantha C. B. Wolf 1927-7-1 534 San Mateo Above Emerald Lake, back of Redwood City. Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  CAS-BOT-BC340469  Lactuca saligna Walter Knight; Irja Knight 1963-10-7 328 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  JROH950  Lactuca serriola John H. Thomas 1971-8-5 16012 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC341626  Lagophylla ramosissima J. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC341635  Lagophylla ramosissima John Thomas Howell 1926-10-9 2215 San Mateo Lake San Andreas Comment
  CAS-BOT-BC341628  Lagophylla ramosissima James I. McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, just south of junction of State Highway 5 (Skyline Blvd.) and Old La Honda Road Comment
  JROH2778  Lamium amplexicaule H. J. Dengler 1975-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road below Searsville Dam 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-BC339075  Lasthenia californica Margaret A. Barry 1937-5-1 37 San Mateo Coal Mine Ridge Comment
  RSA195530  Lasthenia californica John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  CAS-BOT-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-BC339048  Lasthenia californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below the top of the mountain in the vicinity of the radio station Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339054  Lasthenia californica Javier Penalosa 1963-3-9 2689 San Mateo San Bruno Mountain. 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC339084  Lasthenia californica W. R. Dudley No date on label s.n. San Mateo Ocean View near San Francisco Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC339097  Lasthenia californica J. H. Thomas 1949-4-1 215 San Mateo Hills west of Redwood City Comment
  RSA116658  Lasthenia californica Roxana S. Ferris 1921-4-7 2128 San Mateo San Bruno Mt.; Plants of the Santa Cruz Mountain Peninsula. 213 Comment
  JROH980  Lasthenia californica subsp. californica John Hunter Thomas 1988-5-3 24440 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC202790  Lasthenia californica subsp. californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  UC30457  Lasthenia californica subsp. californica J. Burtt Davy 1897-4-1 San Mateo Ocean View Comment
  UC90024  Lasthenia californica subsp. californica T. S. Brandegee 1890-5-28 San Mateo San Gorgonio Comment
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Oct 12 2021
  SEINET11811269  Lasthenia chrysostoma Unknown 1933-1 49 San Mateo Jasper Ridges Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  CAS-BOT-BC355539  Lasthenia glabrata var. glabrata John H. Thomas 1956-4-8 5629 San Mateo Near Bayshore Highway about 2 miles east of Redwood City Comment
  CAS-BOT-BC355548  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  CAS-BOT-BC355549  Lasthenia glabrata var. glabrata Le Roy Abrams 1903-5-11 2456 San Mateo Crystal Springs Comment
  RSA585990  Lasthenia gracilis Adree M. Desrochers 1989-4-17 447 San Mateo Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  CAS-BOT-BC368182  Lasthenia minor V. F. Hesse 1964-5-26 3206 San Mateo Pigeon Point 4 Comment
  RSA22957  Lathyrus latifolius L. R. Abrams, I. L. Wiggins, D. Abrams 1939-6-3 421 San Mateo Roadside 3-4 miles east of San Gregorio, on La Honda Road. Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  RSA177057  Lathyrus littoralis John H. Thomas 1964-5-9 10379 San Mateo Pescadero Beach. Comment
  JEPS22663  Lathyrus littoralis Irene Brown 1959-5-15 151 San Mateo w of Highway 1 (about 50 feet from Ocean, Sharp Park); Sharp Park 7 Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  UC89164  Layia chrysanthemoides K. Brandegee 1885-5-1 San Mateo Millbrae Comment
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Sep 9 2011
  CAS-BOT-BC321095  Layia gaillardioides W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC321072  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  SDSU2788  Layia gaillardioides D. F. Howe 1967-4-14 4351 San Mateo 7 miles from San Mateo on road to Half Moon Bay. 122 Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  POM284972  Layia hieracioides Lyman Benson 1930-5-26 2130 San Mateo Stanford University; Lake Searsville. 152 Comment
  RSA152270  Layia hieracioides John H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC935708  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo above Searsville Lake La Honda Road; Santa Cruz Mountains Comment
  CAS-BOT-BC352222  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  POM298199  Layia hieracioides D. D. Keck 1933-5-11 2306 San Mateo Skyline Blvd, E of Salada, northern San Mateo County. Comment
  JROH993  Layia platyglossa John H. Thomas 1966-4-12 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913095  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo e side Crystal Springs Lake 60 Comment
  POM284976  Layia platyglossa subsp. campestris Arthur L. Cohen 1935-4-21 624 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221527  Lepechinia calycina Margaret A. Barry 1937-6-24 193 San Mateo On Coal Mine Ridge Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  JROH2787  Lepechinia calycina John H. Thomas 1967-5-10 12860 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  UCD115700  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  CAS-BOT-BC12598  Lepidium nitidum H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Woodside. Comment
  JROH1545  Lepidium nitidum John H. Thomas 1974-4-13 17146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  RSA65802  Lepidium perfoliatum D. D. Keck 1932-3-24 1400 San Mateo Redwood City, at border of San Francisco Bay. Comment
  JROH5725  Leptochloa fusca subsp. fascicularis John Rawlings 2015-9-22 1638 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 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
  POM65040  Leptosiphon ambiguus A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  JROH3177  Leptosiphon androsaceus Toni Corelli 2003-6-23 263 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 83 Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  SJSU15803  Leptosiphon croceus Toni Corelli 2015-5-3 1193 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  SBBG39507  Leptosiphon liniflorus L. S. Rose 1970-5-9 70040 San Mateo Black Mtn near Skyline, Hillsborough 121 Comment
  UCD118865  Leptosiphon liniflorus Irene Brown 1959-5-15 148 San Mateo 6 miles south of entrance to refuge, San Francisco Game Refuge. 21 Comment
  JROH3186  Leptosiphon parviflorus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3188  Leptosiphon parviflorus John H. Thomas 1955-5-6 5003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD68981  Leptosiphon parviflorus P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC324053  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo By road east of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Mountains Comment
  CAS-BOT-BC324070  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  LA47382  Lessingia arachnoidea L. S. Rose; 1941-9-6 41434 San Mateo San Mateo Canyon 90.0 Comment
  UC1287459  Lessingia arachnoidea Willard Spence 1960-10-16 635 San Mateo Ralston Road 0.2 mi off Skyline Blvd. Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  UC87932  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  SJSU15428  Lessingia germanorum Toni Corelli 2011-9-14 720 a San Mateo Northeast of Hillside Park, above houses 107 Comment
  SJSU15430  Lessingia germanorum Toni Corelli 2011-9-14 720 c San Mateo Northeast of Hillside Park, above houses 107 Comment
  JEPS40998  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo w of Redwood City; Emerald Lake Comment
  SEINET7063127  Lessingia hololeuca A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  UC73895  Lessingia hololeuca J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCR66541  Lessingia hololeuca L. S. Rose 1936-9-19 36732 San Mateo Crystal Springs Lake 152 Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon Comment
  JROH1037  Leucanthemum maximum Toni Corelli 2009-7-22 353 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed below Dennis Martin marker 71 Comment
  CAS-BOT-BC342095  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd., north of Millbrae Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  UCD64593  Leymus mollis David L. Hanson 1976-3-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC272186  Leymus triticoides Paul Reeberg 1988-10-31 s.n. San Mateo At mouth of ravine west of quarry, San Bruno Mountains Comment
  CAS-BOT-BC272188  Leymus triticoides John H. Thomas 1962-5-20 10113 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  UC306537  Ligusticum apiifolium A. D. E. Elmer July 1903 4966 San Mateo San Mateo Comment
  JROH2984  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  CAS-BOT-BC451666  Lilaea scilloides L. R. Abrams 1909-4-27 s.n. San Mateo Near Crystal Lake Comment
  CAS-BOT-BC451669  Lilaea scilloides K. Hoppaugh 1929-5-8 164 San Mateo Portola Road near Palo Alto Comment
  CAS-BOT-BC130797  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  CAS-BOT-BC45870  Limnanthes douglasii var. sulphurea William Anderson 1966-4-22 n.s San Mateo Canyon Road 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
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  CAS-BOT-BC238362  Limosella aquatica W. R. Dudley 1909-10-10 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near boat-landing of Club-House, Crystal Springs Reservoir Comment
  UC205782  Linanthus ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside Comment
  UCSC004682  Linanthus androsaceus Randall Morgan 1994-4-13 2181 San Mateo Edgewood Park/Canada Road Comment
  UC729681  Linanthus parviflorus Carl B. Wolf 1929-4-24 3656 San Mateo back of Stanford University (sw end of Jasper Ridge); Jasper Ridge 152 Comment
  CDA28966  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .392 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CAS-BOT-BC36067  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-5-27 s.n. San Mateo Mt. Side above Woodside Comment
  POM166732  Lithocarpus densiflorus var. densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range. Comment
  CAS-BOT-BC430768  Lithophragma affine H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  SEINET3161060  Lithophragma affine L. S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC436224  Lithophragma heterophyllum Peter Rubtzoff 1953-5-14 1344 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstreams from Pilarcitos Lake. Comment
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC60216  Lobularia maritima J. H. Thomas 1959-12-19 8519 San Mateo Near Palo Alto Yacht Harbor along edge of dump. Comment
  JROH731  Logfia gallica John H. Thomas 1967-5-10 12839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283229  Lolium multiflorum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  JEPS71241  Lolium multiflorum William S. Cooper 1919-7-22 213 San Mateo Ano Nuevo Pt. Comment
  CAS-BOT-BC283226  Lolium multiflorum Henry E. Wieser 1932-6-1 s.n. San Mateo W of Skyline Blvd betweeen intersection of Hillside and Easton Drives, Burlingame Comment
  SEINET11678784  Lolium multiflorum E. A. Purer 1933-1 5418 San Mateo Santa Clara Valley, near Belmont Comment
  CAS-BOT-BC173843  Lolium perenne Peter Rubtzoff 1975-11-8 8436 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  UC1714473  Lolium temulentum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  SEINET6205051  Lomatium dasycarpum L. S. Rose 1965-1 65027 San Mateo San Bruno Mountain, S of parking lot. Comment
  UCD127627  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  JROH263  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH274  Lomatium macrocarpum John H. Thomas 1962-5-31 9894 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  JROH278  Lomatium utriculatum Duncan M. Porter 1960-4-22 657 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of NE-facing slope above Webb Ranch. Quadrat H-3 Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240594  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC240605  Lonicera hispidula Josephine D. Randall 1907-6-8 19 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC384624  Lonicera hispidula Mary Wicksten 1969-6-24 sn. San Mateo Miwok area - Huddart Park Comment
  JROH1655  Lonicera hispidula John H. Thomas 1975-6-5 17934 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  RSA120036  Lonicera hispidula var. vacillans H. L. Mason 1921-7-4 s.n. San Mateo La Honda - Pescadero Creek Rd. Comment
  UC1125236  Lonicera hispidula var. vacillans G. E. Sindel 1935-7-23 296 San Mateo 3/4 mi s Alpine Creek; Santa Cruz Quadrangle Comment
  RSA18332  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC15579  Lotus formosissimus Alice Eastwood Apr 1896 San Mateo between Crystal Springs and Millbrae Comment
  UC81143  Lotus formosissimus Mrs. J. M. Hutchings 1895-4-4 San Mateo Pescadero Comment
  JEPS55888  Lotus scoparius Dr. L. M. Newlon 1921-7-30 248 San Mateo Salada Comment
  RSA498717  Lotus stipularis E. A. Purer 1932-7-18 4004 San Mateo Kings Mountain. Comment
Read comments
May 21 2014
  UC1004320  Lotus tenuis W. A. Post Jul 1955 San Mateo Burlingame Comment
  POM87746  Lotus wrangelianus L. R. Abrams 1902-5-11 2438 San Mateo Crystal Springs Lake. Comment
  JEPS83227  Lupinus Adele Lewis Grant 1917-3-6 938 San Mateo Pebble Beach near Pescadero; near Pescadero, Pebble Beach 3 Comment
  JROH5564  Lupinus affinis John Rawlings 2013-4-2 1160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ten meters east of Westridge Creek at base of rock outcrop near South Boundary Chia site. 162 Comment
  POM10879  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake. Comment
  POM77731  Lupinus affinis C. P. Smith 1921-4-9 3293 San Mateo San Mateo Canyon Comment
  RSA262978  Lupinus affinis Dunn, Brown 1946-5-15 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the highway from Woodside to La Honda. Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  SEINET10488443  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  CAS-BOT-BC195787  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46117 San Mateo South Crystal Springs Lake, Woodside Road Comment
  CAS-BOT-BC195794  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48499 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  SEINET10484532  Lupinus albifrons var. collinus Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mountain. Exposed slopes below top of mountain Comment
  SEINET10488469  Lupinus arboreus Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mountain. Top of mountain, near radio station Comment
  SEINET10488472  Lupinus arboreus Marcus E. Jones 1881-6-24 Jones s.n. San Mateo Comment
  POM349925  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 18256 San Mateo Two miles south of Pigeon Point Comment
  JROH5635  Lupinus bicolor John Rawlings 2014-5-28 1247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Dennis Martin Site Marker near path to San Francisquito Creek crossing 77 Comment
  UC155172  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University; near Stanford University Comment
  HSC43288  Lupinus bicolor Dunn 1946-5-16 2596 San Mateo 1 block N of Sloat Blvd. at Vale Ave. Comment
  SEINET12154472  Lupinus bicolor Unknown 1932-1 9116 San Mateo Half Moon Bay Comment
  POM10639  Lupinus bicolor subsp. umbellatus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range. 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
  UC1294006  Lupinus formosus E. K. Balls 1958-7-22 23592 San Mateo Hwy 5 at turn-off to San Bruno (San Bruno Hills); San Bruno Hills 213 Comment
  UC201950  Lupinus formosus Inez Ray Smith 1915-5-27 723 San Mateo Redwood Comment
  JROH5607  Lupinus formosus var. formosus Ann Lambrecht 2013-11-12 47 San Mateo Jasper Ridge Biological Preserve, Stanford University. A zone 4-25 m south of a large valley oak in annual grassland, west of road C and south of trail 18 123 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
  SD37896  Lupinus latifolius var. latifolius Delzie Demaree 1932-4-9 8979 San Mateo Near entrance to [Gov.?] Ralph Estate Comment
  SBBG39518  Lupinus microcarpus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2132  Lupinus nanus John Hunter Thomas 1977-6-16 18762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15978  Lupinus nanus Ivar Tidestrom May 1894 San Mateo Comment
  SEINET10903591  Lupinus nanus subsp. latifolius Charles Piper Smith 1947-4-25 Smith 47188 San Mateo Pebble beach (pescadero), hwy 1. Comment
  RSA178637  Lupinus nanus subsp. nanus James I. McMurphy 1911-4-24 s.n. San Mateo Corner between San Francisquito and Los Trancos creeks near Stanford University. Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  POM226876  Lupinus polycarpus L. R. Abrams 5094 San Mateo Menlo Heights Comment
  POM11074  Lupinus polyphyllus var. grandifolius A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro. Comment
  POM276524  Lupinus succulentus Lyman D. Benson 1930-4-27 2077 San Mateo Stanford University. 122 Comment
  RSA212124  Lupinus succulentus L. S. Rose 1970-5-9 70039 San Mateo Chateau Drive near Skyline, Hillsborough. 91 Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  SD39057  Lupinus tidestromii Edith A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC1129739  Lupinus variicolor H. S. Yates 1935-2-8 5225 San Mateo 1 mi e Franklin Pt.; Santa Cruz Quad. Comment
  UC903067  Lupinus variicolor Ethel Crum 1934-4-29 1699 San Mateo 4 mi s Pescadero (open slope near ocean); s of Pescadero Comment
  RSA134069  Lupinus variicolor W. R. Dudley 1900-3-17 s.n. San Mateo Grade south side Montara Mts. Comment
  POM290438  Luzula comosa Arthur L. Cohen 1935-4-21 634 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC441262  Luzula macrantha W. R. Dudley 1908-3-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Coal Mine Ridge near Mud Lakes 335 Comment
  CAS-BOT-BC441267  Luzula macrantha E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC441365  Luzula subsessilis Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain: Bitter Cherry Ravine Comment
  CHSC106625  Luzula subsessilis Peter F. Zika 2010-5-1 24790 San Mateo Above SE shore of Alpine Pond, Santa Cruz Mountains, San Francisco Bay (SnFrB) 660 Comment
  JEPS101278  Luzula subsessilis Dean W. Taylor 1988-3-16 9405 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot 371 Comment
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2951  Lythrum hyssopifolia John Hunter Thomas 1979-9-9 19715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  RSA210921  Madia Cherie L. 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
  RSA81525  Madia elegans subsp. densifolia James I. McMurphy 1907-8-8 s.n. San Mateo San Francisquito Creek; San Mateo - Santa Clara county line Comment
  POM362143  Madia elegans subsp. elegans D. D. Keck 1931-10-5 1279 San Mateo Crystal Springs lake, E side Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 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
  CAS-BOT-BC344492  Madia exigua David D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC343330  Madia gracilis Fred Hemphill 1973-5-14 815 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC343336  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1096  Madia gracilis John Hunter Thomas 1992-5-14 25226 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC343325  Madia gracilis Gwendolan Newell 1914-6-18 s.n. San Mateo Raymonds ranch, Los Gatos Comment
Read comments
Oct 28 2021
  CAS-BOT-BC343331  Madia gracilis George Oberlander 1949-7-24 270 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake Comment
  CAS-BOT-BC343340  Madia gracilis James I. McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH1111  Madia sativa John Hunter Thomas 1983-7-7 22814 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH1112  Madia sativa John Hunter Thomas 1983-7-7 22828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  CAS-BOT-BC512107  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-3-17 638 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512102  Maianthemum racemosum subsp. amplexicaule P. C. Wheeler 1966-4-24 s.n. San Mateo Trillium Canyon; San Bruno Mountain Comment
  CAS-BOT-BC512112  Maianthemum racemosum subsp. amplexicaule J. H. Thomas 1949-4-14 277 San Mateo Kings Mountain; Western North America Comment
  JROH4707  Maianthemum stellatum John H. Thomas 1977-4-21 18537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514170  Maianthemum stellatum Walter & Irja Knight 1965-3-21 991 San Mateo North facing slope of Power Line Ridge Comment
  CAS-BOT-BC514171  Maianthemum stellatum Elizabeth McClintock 1965-3-28 s. n. San Mateo In Trillium Gulch, San Bruno Mountain Comment
  SEINET12044094  Maianthemum stellatum W. R. Dudley 1902-1 s.n. San Mateo by Alpine Road on Corte de Madera Creek, Santa Cruz Peninsula Comment
  JROH2959  Malacothamnus fasciculatus John H. Thomas 1969-5-28 15085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  CAS-BOT-BC206685  Malva assurgentiflora Walter Knight; Irja Knight 1963-10-7 334 San Mateo Hillside Blvd. near Cypress Hill Golf Course, San Bruno Mountain Comment
  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
  CDA34450  Marah fabacea M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 879 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  UC1746100  Marah oregana Annetta Carter, Helen Sharsmith 1937-5-23 1319 San Mateo Just S of Crystal Springs Lake. Comment
  UC635685  Marah oregana H. L. Mason 1927-4-23 3681 San Mateo between La Honda and Pescadero Creek Comment
  JROH621  Matricaria discoidea John Hunter Thomas 1980-5-8 19953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17213  Matricaria discoidea Schulte, John 1963-4-28 San Mateo On top of Jasper Ridge, 3 miles southwest of Stanford campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  POM176886  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo San Mateo to Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC422685  Meconella californica Arthur Menzies 1972-4-9 s.n. San Mateo San Bruno Mountain. Buckeye Canyon south of Crocker Industrial Park. Comment
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788950  Medicago polymorpha Peter Rubtzoff 1977-4-16 8952 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, along W side of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC271159  Melica John H. Thomas 1965-4-29 10631 B San Mateo San Bruno Mountain in northern part of county. 396 Comment
  SBBG44985  Melica californica L. R. Abrams 1902-5-4 2407 San Mateo Woodside Comment
  CAS-BOT-BC264239  Melica torreyana Ira L. Wiggins 1928-4-14 2904 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC264240  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC264249  Melica torreyana W. R. Dudley 1900-5-19 s.n. San Mateo Above La Honda, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264254  Melica torreyana Margaret Barry 1937-7-17 209 San Mateo Coal Mine Ridge Comment
  SD40028  Melilotus indicus Edith A. Purer 1933-7-27 5368 San Mateo Pigeon Point Comment
  JROH2185  Melilotus indicus John H. Thomas 1971-5-30 15952 San Mateo Jasper Ridge Biological Preserve, Stanford University; at dam Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  JROH2828  Mentha X piperita John H. Thomas 1968-10-29 14856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD142326  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  CAS-BOT-BC435236  Mesembryanthemum crystallinum Lin Grayson 1981-5-13 022 San Mateo Palmetto Ave, 100 ft. south of intersection Avalon Dr. Pacifica 16 Comment
  CAS-BOT-BC438143  Mesembryanthemum nodiflorum D. E. Breedlove 1975-5-13 39400 San Mateo Old Belmont Dump, edge of salt flats at end of Ralston Avenue. Comment
  CAS-BOT-BC348580  Micropus californicus var. californicus Margaret Barry 1937-5-8 s.n. San Mateo Coal Mine Ridge Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1120  Micropus californicus var. californicus John H. Thomas 1961-4-29 9187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5948  Micropus californicus var. californicus John Rawlings 2016-4-20 1726 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 at lower Trail 9 118 Comment
  CAS-BOT-BC348573  Micropus californicus var. californicus George Oberlander 1949-7-24 286 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  RSA130390  Micropus californicus var. subvestitus W. R. Dudley 1906-5-13 s.n. San Mateo Open hills southwest of San Mateo Comment
  JROH1140  Microseris douglasii subsp. douglasii John H. Thomas 1957-4-16 6658 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1146  Microseris douglasii subsp. douglasii John Hunter Thomas 1981-5-8 20548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1148  Microseris douglasii subsp. douglasii John Hunter Thomas 1987-5-5 24249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349038  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC349039  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  RSA0059221  Microseris douglasii subsp. douglasii K. L. Chambers 1980-5-8 4620 San Mateo Canada Road, ca. 3.2 mi N. of Woodside, at junct. of Edgewood Rd., below I-280 Freeway. Comment
  POM87985  Microseris douglasii subsp. tenella L. R. Abrams 1902-5-4 2425 San Mateo Woodside- Serpentine Hills Comment
  RSA116721  Microseris douglasii subsp. tenella Harry A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  HSC59830  Mimulus aurantiacus var. aurantiacus Clark L. Miller 1978-6-15 1 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1, on Verde Rd. 61 Comment
  JROH4068  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4077  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1980-6-5 19998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA420293  Mimulus aurantiacus var. aurantiacus Paul C. Silva 1948-1-31 2628 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  UCR75957  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1105 San Mateo 1.2 mi south of Hwy 35 (Skyline Blvd) along Hwy 84 (La Honda Road) 378 Comment
  RSA15208  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1926-10-19 91 San Mateo La Honda Grade, 1 mi from east [cave/cove?] Santa Cruz Mts. Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC306596  Mimulus cardinalis A. D. E. Elmer July, 1903 4941 San Mateo Lake San Andreas Comment
  JROH4080  Mimulus cardinalis Carol Zabel 1989-8-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, 100 feet upstream from low-flow crossing Comment
  JROH4086  Mimulus guttatus Duncan M. Porter 1961-4-8 750 San Mateo Jasper Ridge Biological Preserve, Stanford University; below large meadow on crest of ridge Comment
  JROH4088  Mimulus guttatus Herbert Dengler 1967-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by CMCr -- E. side by trail that crosses creek to go to Tom's (Schultz). This is about 150' from S. corner of Biol. Preserve Comment
  SEINET12269870  Mimulus guttatus var. grandis Unknown 1932-1 9123 San Mateo Half Moon Bay 0 Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  JEPS22487  Minuartia douglasii C. E. Durrell 1909-4-21 San Mateo Burlingame Comment
  POM308671  Minuartia douglasii Florence Danforth 1943-5-7 2388 San Mateo Jasper Ridge, above Searsville Lake. Comment
  SEINET11943608  Minuartia douglasii L. S. Rose 1937-1 37249 San Mateo Burlingame hills 91 Comment
  CAS-BOT-BC214080  Monardella villosa Margaret A. Barry 1937-6-22 158 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC214086  Monardella villosa D. E. Breedlove 1974-5-13 36235 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC214174  Monardella villosa L. R. Abrams 1920-6-1 7496 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  POM19726  Monardella villosa C. F. Baker 1903-6-30 3353 San Mateo Crystal Springs. Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  UCR121553  Monardella villosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4991 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-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. 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
  RSA218007  Monardella villosa Elizabeth McClintock, Walter, Irja Knight, Baki Kasapligil 1967-7-18 s.n. San Mateo North side of ridge road adjacent to Buckeye Canyon, San Bruno Mountain Comment
  UC1041059  Monardella villosa subsp. franciscana J. W. Congdon 1901-7-7 San Mateo Road Millbrae to Spring Valley Comment
  CDA40773  Monardella villosa subsp. franciscana G. D. Barbe 1974-6-4 1825 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. Coastal part of county. 0 Comment
  SEINET10582382  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 185 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  UC25530  Monardella villosa subsp. villosa J. Burtt Davy 1893-6-17 770 San Mateo Belmont South Coast Ranges Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC327793  Monolopia gracilens Fred Hemphill 1973-4-22 770 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  UC50083  Monolopia gracilens J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC349588  Monolopia major W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek Comment
  RSA101034  Montia fontana G. Oberlander 1950-4-16 632 San Mateo Along stream below San Andreas dam, San Francisco Watershed Reserve Comment
  CAS-BOT-BC444952  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts. 1 mi. no of summit of La Honda Grade on Skyline Blvd. Comment
  UC311167  Montia parvifolia A. D. E. Elmer May, 1903 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC445195  Montia parvifolia W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. By Pescadero Cr above Iversons. Comment
  UC672605  Morella californica Herbert L. Mason 1927-4-23 3694 San Mateo Pescadero Creek near Bloomquist Mill Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC515667  Muscari botryoides J. H. Thomas 1960-3-30 8560 San Mateo San Francisco Creek near El Camino, Menlo Park. Comment
  PGM4947  Myosotis discolor Vern Yadon 2002-5-2 San Mateo Swanton near San Mateo Co, Inland from 1st ridge Comment
Read comments
Sep 15 2021
  CDA28803  Myosotis latifolia D. G. Kelch 2009-6-9 9 .403 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC101774  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  RSA15200  Myrica californica Carl B. Wolf 1926-10-19 77 San Mateo West of summit of La Honda Grade, Santa Cruz Mountains. Comment
  JROH2690  Myriophyllum aquaticum John H. Thomas 1970-7-5 15675 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. 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
  JROH2701  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  JROH2702  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  UCD102559  Myriophyllum sibiricum Herbert L. Mason; Verne Grant 1946-8-28 13079 San Mateo North of San Francisco County Prison. Comment
  JROH6206  Narcissus tazetta Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Rd. 20 and south of the Douglas Iris Site. 85 Comment
  CAS-BOT-BC260024  Nassella lepida Phillip C. Wheeler 1965-5-18 s.n. San Mateo San Bruno Mountain. Near base of mountain near Olivet Cemetary 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
  UCD37962  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  JROH1574  Nasturtium officinale John Hunter Thomas 1987-4-7 24177 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  RSA127725  Nasturtium officinale John H. Thomas 1959-7-8 8018 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC60481  Nasturtium officinale Daniel Cohen 1953-5-9 80 San Mateo Top of sea cliff at Pescadero. Comment
  JROH5661  Navarretia heterodoxa John Rawlings 2014-6-7 1261 San Mateo Jasper Ridge Biological Preserve, Stanford University; on both sides of Trail 9 through chamise chaparral east of WIFI station 197 Comment
  SEINET183956  Navarretia heterodoxa Lewis S. Rose 1936-5-28 36306 San Mateo Emerald Lake, west of Redwood City 91 Comment
  SEINET191609  Navarretia heterodoxa Lewis S. Rose 1941-6-12 41269 San Mateo Emerald Lake, hills west of Redwood City 122 Comment
  UC101994  Navarretia heterodoxa Alice Eastwood Jun 1897 San Mateo Crystal Springs Comment
  JROH3208  Navarretia squarrosa Richard L. Garber 1971-7-13 66 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA206579  Navarretia squarrosa Ira L. Wiggins; 1929-7-4 3777 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach 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
  POM65137  Navarretia squarrosa Stewart H. Burnham 1894-9-13 7228 San Mateo Outer Coast Range near La Honda Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  CAS-BOT-BC219489  Nemophila parviflora Lewis S. Rose 1933-4-9 33067 San Mateo Belmont Comment
  CAS-BOT-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  CAS-BOT-BC219486  Nemophila parviflora Walter Knight; Irja Knight 1965-4-26 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo 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
  HSC66971  Oemleria cerasiformis Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  JEPS44826  Oemleria cerasiformis W. L. Jepson 1922-3-19 9542 San Mateo Lake San Andreas 182 Comment
  SJSU8083  Oemleria cerasiformis S. H. Casey 1969-5-18 261 San Mateo 0.25 SE of San Bruno Mt summit Comment
  UC860379  Oemleria cerasiformis Lewis S. Rose 1937-3-20 37004 San Mateo w of Tanforan (Skyline Blvd) 182 Comment
  SEINET11915946  Oemleria cerasiformis E. G. Dudley 1904-1 42 San Mateo Portola Valley, Santa Cruz Mts Comment
  RSA136184  Ornithopus sativus John H. Thomas 1956-7-2 6039 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 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
  RSA401985B  Orthocarpus densiflorus Francis W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  RSA523837  Orthocarpus erianthus Gordon H. True Jr. 1936-6-7 487 San Mateo 2 miles south of Pescadero. Along coast highway. 15 Comment
  POM49732  Orthocarpus floribundus L. R. Abrams 1902-4-13 2321 San Mateo San Andreas Lake. Comment
  POM49731  Orthocarpus lithospermoides L. R. Abrams 1902-5-11 2440 San Mateo Crystal Springs. Comment
  RSA178633  Orthocarpus lithospermoides L. R. Abrams 1915-6-7 5237 San Mateo Woodside - Crystal Springs road near junction with Whipple Road. Comment
  SEINET12324059  Orthocarpus pusillus E. McClintock, Knight, W.; Knight, I. 1982-1 4648 San Mateo San Bruno Mountain Comment
  RSA459008  Osmorhiza berteroi E. S. Spalding 1924-6-28 s.n. San Mateo San Mateo, La Honda Comment
  UC21176  Osmorhiza berteroi J. Burtt Davy 1893-6-17 788 San Mateo Belmont Comment
  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
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  HSC16710  Oxalis oregana P. A. Murphy 1965-4-16 35 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  POM202649  Oxalis oregana Alice Eastwood 1933-5-31 s.n. San Mateo Butano Canyon. Comment
  SEINET12182802  Oxalis oregana Unknown 1933-1 10394 San Mateo White House Creek Comment
  CAS-BOT-BC253791  Panicum hillmanii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Brisbane Lagoon near railroad tracks Comment
  UC769914  Parapholis incurva R. F. Hoover 1941-5-20 5106 San Mateo San Bruno Comment
  CAS-BOT-BC265661  Paspalum distichum A. D. E. Elmer 1901-7-1 2876 San Mateo Searsville Comment
  JROH1401  Pectocarya pusilla L. Roush & G. Kimber 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1402  Pectocarya pusilla John H. Thomas 1975-5-2 17858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5551  Pectocarya pusilla John Rawlings 2013-4-16 1126 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 120 meters northwest from trail marker, east side of trail 136 Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JEPS17981  Pedicularis densiflora George B. Rossbach 1955-3-12 488 San Mateo se end of Buriburi Ridge (nw side of San Mateo Creek); , San Mateo Creek 76 Comment
  JROH4114  Pedicularis densiflora John H. Thomas 1976-4-2 18080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209468  Pedicularis densiflora L. R. Abrams; 1914-3-1 5058 San Mateo Kings Mountain Road 152 Comment
  JROH4105  Pedicularis densiflora John H. Thomas 1960-4-2 8562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0006087  Pedicularis dudleyi A. D. E. Elmer 1903-06 4289 San Mateo Iverson's Place, Pescadero Creek. Comment
Read comments
Jun 13 2020
  JROH103  Pellaea andromedifolia John Hunter Thomas 1982-11-8 21257 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  CAS-BOT-BC327978  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC327979  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  POM88666  Pentachaeta exilis L. R. Abrams 1902-4-13 2326 San Mateo San Andreas Lake. 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
  CAS-BOT-BC77010  Pentagramma triangularis subsp. triangularis Ned Cahill 1974-5-13 244 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC77011  Pentagramma triangularis subsp. triangularis E. L. H. Knoche 1896-2-8 s.n. San Mateo Woodside Comment
  CAS-BOT-BC77004  Pentagramma triangularis subsp. triangularis Phillip Wheeler 1966-12-30 s.n. San Mateo San Bruno Mountains - Harold Road, Brisbane Comment
  UC652563  Perideridia gairdneri subsp. gairdneri Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH317  Perideridia kelloggii John Hunter Thomas 1992-7-24 25395 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC418848  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22298 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pope Street bridge, Menlo Park Comment
  JROH3271  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19716 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  CAS-BOT-BC419156  Persicaria maculosa George Oberlander 1949-7-24 317 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  CAS-BOT-BC419386  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway #1 Comment
  CAS-BOT-BC419388  Persicaria punctata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt. Comment
  CAS-BOT-BC419389  Persicaria punctata W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward PIlar Pt. Comment
  CDA8457  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  RSA116637  Petasites palmatus W. R. Dudley 1894-3-23 s.n. San Mateo By La Honda Creek. Santa Cruz Mountain Peninsula. Comment
  UCD120300  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  POM65579  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  UC511347  Phacelia divaricata Lyman Benson 1931-3-15 2639 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  UC881086  Phacelia divaricata Lewis S. Rose 1937-4-24 37231 San Mateo w Redwood City; Emerald Lake 106 Comment
  CDA929  Phacelia malvifolia D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .367 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC258933  Phalaris aquatica J. H. Thomas 1958-8-1 7375 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  JROH5352  Phalaris aquatica John H. Thomas 1962-7-15 9922 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  RSA118050  Phalaris aquatica J. T. Howell 1954-7-8 30009 San Mateo Skyline Blvd. above (west of) San Bruno Comment
  RSA128340  Phalaris californica P. H. Raven 1950-6-3 2275 San Mateo along dry rivulet flowing into San Andrews Lake, Crystal Springs Lake 122 Comment
  SEINET4692076  Phalaris californica A. D. E. Elmer 1903-1 4699 San Mateo Crystal Springs Lake Comment
  SJSU15792  Phalaris californica Toni Corelli 2010-6-1 641 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 23 Comment
  CAS-BOT-BC250642  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  CAS-BOT-BC222502  Pholistoma auritum var. auritum Miss E. Cannon No date on label s.n. San Mateo South San Francisco Comment
  RSA232065  Physalis philadelphica John H. Thomas 1971-10-27 16026 San Mateo Near intersection of Alpine Road and Interstate Hwy 280, behind the Stanford Campus. Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  CAS-BOT-BC142179  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  CAS-BOT-BC142183  Physocarpus capitatus W. R. Dudley 1902-6-1 s.n. San Mateo Steven's Creek Road, lower part - Santa Cruz Peninsula Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  CAS-BOT-BC78644  Pinus halepensis Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo above Brisbane, on ridge 750 feet west of Brisbane Ravine 121 Comment
  UCSC007746  Pinus radiata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH2205  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187365  Plagiobothrys chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain peninsula, near Crystal Springs Reservoir Comment
  CAS-BOT-BC228124  Plagiobothrys chorisianus Roxana S. Ferris 1921-4-7 2136 San Mateo San Bruno Mountain 30 Comment
  CAS-BOT-BC228162  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Reservoir Comment
  CAS-BOT-BC228167  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1427  Plagiobothrys nothofulvus John H. Thomas 1975-4-5 17714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287296  Plagiobothrys nothofulvus Lyman Benson 1930-5-1 2055 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  JEPS127787  Plantago erecta Adam C. Schneider with C. Matt Guilliams 2013-4-7 58 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3119  Plantago erecta John Hunter Thomas 1981-5-25 20643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3120  Plantago erecta John Hunter Thomas 1982-4-28 20871 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3126  Plantago erecta John Hunter Thomas 1992-4-29 25172 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA153467  Plantago erecta John H. Thomas 1961-5-7 9250 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH3128  Plantago lanceolata John H. Thomas 1968-4-19 14292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176677  Plantago lanceolata John H. Thomas 1949-4-6 273 San Mateo 4 miles S of Daly city Comment
  JROH3133  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  SEINET8389512  Plantago subnuda J. H. Thomas 1964-6-19 10433 San Mateo near Pigeon Pt. Lighthouse. Comment
  POM204134  Platystemon californicus var. californicus L. S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  SD38887  Plectritis ciliosa Cumming, Mc Callum 1933-5-10 3716 San Mateo Near Spring Valley lakes Comment
  JROH4245  Plectritis congesta subsp. brachystemon John Hunter Thomas 1981-4-23 20490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128836  Plectritis macrocera L. R. Abrams 1904-4-10 s.n. San Mateo On road from Woodside to Crystal Springs. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC260965  Pleuropogon californicus var. californicus George Oberlander 1950-6-3 614 San Mateo San Francisco Watershed Reserve Comment
  POM296628  Poa Lyman Benson 1935-5-5 6536 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99466  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, San Mateo, along path Comment
  UCD163746  Poa annua Peter Rubtzoff 1988-5-3 9911 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC255054  Poa compressa Peter H. Raven 1950-4-16 1812 San Mateo Flat fields between Geneva Avenue, San Francisco County and Summit of San Bruno Mountains, San Mateo County Comment
  JROH5411  Poa howellii John Rawlings 2012-5-1 1071 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Road E on steep north-facing slope of the big inlet. 112 Comment
  CAS-BOT-BC255785  Poa infirma John H. Thomas 1965-4-29 10628 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SJSU7645  Poa kelloggii T. J. Sammis 1974-5-16 San Mateo redwood forest between Pescadero Road & Pescadero Creek c. 1 mi W of Loma Mar Comment
  JROH5420  Poa pratensis subsp. pratensis John Rawlings 2012-5-8 1108 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville store marker sign west edge of Road L 107 Comment
  POM204948  Poa secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243113  Poa secunda subsp. secunda Ned Cahill 1974-5-30 310 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC243123  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  JROH5426  Poa secunda subsp. secunda W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across Lake from lab. Comment
  UC157041  Poa secunda subsp. secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  SEINET10659521  Poa unilateralis Edwin B. Copel 1903-6-17 Copeland 3306 San Mateo Montara Point. Comment
  JROH2860  Pogogyne serpylloides John Hunter Thomas 1980-5-6 19934 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2866  Pogogyne serpylloides John Hunter Thomas 1985-5-7 23641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC225240  Polemoniaceae Alice Eastwood 1901-5-9 s.n. San Mateo Benheim Comment
  CAS-BOT-BC232896  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  JEPS81637  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  UC168663  Polygonum punctatum C. F. Baker 1902-10-20 1858 San Mateo Searsville; about lake Comment
  JROH75  Polypodium californicum John H. Thomas 1964-4-19 10313 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Searsville end of ridge Comment
  RSA485490  Polypodium californicum Lyman Benson 1929-3-5 977 San Mateo King s Mountain Comment
  CAS-BOT-BC76949  Polypodium californicum Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  JROH78  Polypodium californicum John H. Thomas 1970-1-1 15497 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72063  Polypodium calirhiza Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain 609 Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  CAS-BOT-BC233151  Polypogon interruptus M. Edith Lang 1922-5-25 s.n. San Mateo Emerald Lake back of Redwood City Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  JROH5433  Polypogon interruptus John Hunter Thomas 1979-6-12 19588 San Mateo Jasper Ridge Biological Preserve, Stanford University. On dam. Comment
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC233150  Polypogon interruptus L. R. Abrams 1927-7-15 12190 San Mateo Skyline Blvd back of South San Francisco Comment
  CAS-BOT-BC233158  Polypogon interruptus Robert Robertson 1954-4-14 76 San Mateo By roadside NW of Palo Alto Yacht Club 3 Comment
  JROH5440  Polypogon monspeliensis John H. Thomas 1962-7-15 9920 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  JROH5446  Polypogon monspeliensis John H. Thomas 1976-10-16 18410 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  JROH5544  Polypogon viridis John Rawlings 2012-5-23 1111 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  CAS-BOT-BC76610  Polystichum munitum David D. Keck 1932-2-12 1360 San Mateo La Honda road, east slope of Coast Range above Searsville Lake. 304 Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  CAS-BOT-BC76647  Polystichum munitum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC150382  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo w side King's Mt. Comment
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  RSA157754  Polystichum munitum I. L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  RSA681612  Populus fremontii Annuschka Deb 1989-7-28 328 San Mateo YBN Demonstration Garden. Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  UC814176  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC141927  Potentilla anserina subsp. pacifica A. A. Heller 1907-4-20 8441 San Mateo Near Lake Merced. 60 Comment
  JEPS44178  Potentilla anserina subsp. pacifica Adele Lewis Grant 1917-5-6 941 San Mateo Pebble Beach nr Pescadero; Pebble Beach nr Pescadero Comment
  POM203299  Potentilla hickmanii E. C. Satlife 1933-11-10 s.n. San Mateo Moss Beach Comment
  SEINET12054260  Prosartes hookeri Unknown 1932-1 8971 San Mateo Los Franco woods Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  CAS-BOT-BC517399  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  JROH2868  Prunella vulgaris var. lanceolata Toni Corelli 2005-7-13 294 b San Mateo Jasper Ridge Biological Preserve, Stanford University; lower fire Road C, about 20 m south of low flow crossing along road 80 Comment
  POM63307  Prunella vulgaris var. lanceolata A. D. E. Elmer 1903-06 4206 San Mateo Crystal Springs Lake. Comment
  UC449935  Prunella vulgaris var. lanceolata Franklin P. Nutting 1893-7-15 San Mateo near Lake San Andreas; near Lake San Andreas Comment
  RSA18295  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-21 422 San Mateo East slope of Kings Mt. Comment
  RSA218028  Prunella vulgaris var. lanceolata Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC158585  Prunus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo On ridge above Bitter Cherry Ravine Comment
  CAS-BOT-BC154503  Prunus ilicifolia Phillip Wheeler 1965-6-7 s.n. San Mateo Between Owls Canyon and Buckeye Canyon Comment
  UC12763  Prunus ilicifolia J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  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-BC356475  Pseudognaphalium beneolens George Oberlander 1949-7-30 336 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC356859  Pseudognaphalium californicum John H. Thomas 1961-5-7 9303 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH751  Pseudognaphalium californicum W. R. Dudley 1895-6-14 299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356851  Pseudognaphalium californicum R. E. Frenkel 1964-8-21 755 San Mateo On Spring Valley Ridge Road at its junction with Whiting Ridge Road, SFWD 347 Comment
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357119  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357121  Pseudognaphalium luteoalbum Fred Hemphill 1973-4-22 725 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-BC357129  Pseudognaphalium luteoalbum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon Comment
  CAS-BOT-BC357135  Pseudognaphalium luteoalbum R. E. Frenkel 1963-12-7 326 San Mateo San Francisco Water District, along road edge, ca. 0.5 mile east of Halfmoon [Half Moon] Bay Club toward Pilarcitos Reservoir Comment
  UCD135090  Pseudognaphalium luteoalbum J. D. Skoss 1948-7-25 44 San Mateo Montara. Comment
  JROH6200  Pseudognaphalium ramosissimum John Rawlings 2017-9-12 2295 San Mateo Jasper Ridge Biological Preserve, Stanford University; east bank of Bear Creek 82 Comment
  CAS-BOT-BC357503  Pseudognaphalium ramosissimum Peter Rubtzoff 1975-10-4 8420 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Dry, open slope just north of Guadalupe Canyon Parkway Comment
  SBBG32247  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 121 Comment
  SD27753  Pseudognaphalium stramineum Carl B. Wolf 1927-6-29 563 San Mateo South of Pescadero at Pebble Beach Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  POM223619  Pseudotsuga menziesii S. S. Berry 1909-3-13 s.n. San Mateo King s Mountain. 640 Comment
  RSA15295  Pseudotsuga menziesii C. B. Wolf 1927-4-3 265 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UC766970  Pseudotsuga menziesii var. menziesii R. F. Hoover 1941-2-12 4760 San Mateo above La Honda; La Honda Creek Comment
  JROH1177  Psilocarphus tenellus John H. Thomas 1956-4-7 5611 A San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1186  Psilocarphus tenellus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1188  Psilocarphus tenellus John Hunter Thomas 1983-4-14 21406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  SJSU10067  Psilocarphus tenellus R. D. Hennessey 1964-4-25 57 San Mateo Pilarcitos Cr near outlet to ocean Comment
  SEINET3086525 Image available Pterostegia drymarioides C. W. Sharsmith 1947-4-13 6756 San Mateo Pescadero Beach near Pescadero Point. 50 Comment
  UCD92957  Puccinellia maritima August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  SD58312  Puccinellia nutkaensis Alan A. Beetle 1946-6-4 4278 San Mateo on S.F. Bay margin; San Mateo Bridge approach, San Mateo City limits Comment
  CAS-BOT-BC460839  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  RSA0082792  Pyrola aphylla A. D. E. Elmer 1903-06 4297 San Mateo Pescadero. Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  SFV17779  Quercus agrifolia E. W. Holm 1993-11-26 s. n. San Mateo Huddart Park, near Sequoia Picnic Area on east-facing slope. Comment
  UCD14953  Quercus agrifolia Stephen K. Langer 1991-3-16 s.n. San Mateo California, San Mateo Co.; San Bruno Mountains, Buckeye Canyon. Comment
  UCD45091  Quercus agrifolia Roman Gankin; Ken Himes, and Toni Corelli 2003-8-23 1401 San Mateo About 0.4 mi above Pilarcitos Lake Dam on main road to '5 points' crossroads on downside edge of roadway. Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62305  Quercus chrysolepis William R. Dudley 1894-10-1 s.n. San Mateo Black Mountain Road 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
  CAS-BOT-BC62308  Quercus chrysolepis Albert Wilson 1936-8-16 s.n. San Mateo Santa Cruz Mts. above Pescadero Comment
  CAS-BOT-BC85952  Quercus douglasii Ned Cahill 1974-5-30 327 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwwod City. Comment
  JROH5803  Quercus douglasii John Rawlings, Bill Gomez 2016-7-28 1911 A San Mateo Jasper Ridge Biological Preserve, Stanford University; north side Rd F in blue oak woodland west of serpentine prairie 182 Comment
  JROH2533  Quercus dumosa var. bullata Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC94276  Quercus durata John H. Thomas 1969-10-19 15486 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  HSC8315  Quercus durata var. durata L. S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2484  Quercus durata var. durata John H. Thomas 1972-8-18 16149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2491  Quercus durata var. durata John Hunter Thomas 1980-5-6 19936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2492  Quercus durata var. durata John Hunter Thomas 1982-10-16 21179 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105389  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Near Searsville Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  JROH2519  Quercus lobata John H. Thomas 1971-8-5 16011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD47214  Quercus parvula John M. Tucker 1994-9-9 s.n. San Mateo (Q. parvula E. Greene var. shrevei (C.H. Muller) Nixon). Huddart Park on NE facing slope nr. Miwok Shelter. 365 Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  UC1084409  Quercus wislizeni G. Thomas Robbins 1937-4-11 112 San Mateo Wooded hillside above Redwood City Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c Comment
  CAS-BOT-BC362549  Rafinesquia californica John R. Barth 1963-6-3 56 San Mateo Coal Mine Ridge, about 7 miles south of Palo Alto 335 Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  JROH5899  Ranunculus californicus L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab. 178 Comment
  SJSU2273  Ranunculus californicus C. W. Sharsmith 1947-4-13 6754 San Mateo Pescadero Beach near Pwscadero Point Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  RSA120769  Ranunculus californicus var. cuneatus S. S. Tillett, I. Sternback 1956-6-24 537 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA15339  Ranunculus californicus var. cuneatus Carl B. Wolf 1927-1-29 s.n. San Mateo Pebble Beach, along bluffs near Beach Comment
  JROH3478  Ranunculus hebecarpus John H. Thomas 1971-4-25 15788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3476  Ranunculus hebecarpus John H. Thomas 1963-4-13 10033 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slopes along road near Searsville Lake, near arm of lake. Comment
  UC481014  Ranunculus hebecarpus Franklin P. Nutting April, 1895 San Mateo Comment
  CAS-BOT-BC83428  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  RSA181388  Ranunculus muricatus James I. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills. Comment
  POM269264  Ranunculus muricatus Lyman Benson 1935-5-7 6546 San Mateo Santa Cruz Mt, San Francisco Bay, Stanford University 152 Comment
  POM282733  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1934-3-11 35051 San Mateo Wet fields, Visitacion Valley Comment
  POM269795  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Road betw woodside and Byrnes store Comment
  UCD97311  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74338  Raphanus sativus Ned Cahill 1974-4-30 214 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  OBI48701  Raphanus sativus S. Bagley 1969-3-28 s.n. San Mateo Overlooking the San Francisco Game Refuge 145 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC55903  Rhamnus crocea George Oberlander 1950-5-21 967 San Mateo Northern Cahill Ridge Comment
  LA207744  Rhamnus crocea Carl B. Wolf; 1928-3-16 1540 San Mateo Jasper Ridge, near Searsville Lake Comment
  RSA7753  Rhamnus crocea Carl B. Wolf 1927-4-3 283 San Mateo 1/4 mile from Schenkel's Camp, 2 miles back of Stanford Comment
  UC592766  Rhamnus crocea unknown 1927-8-7 717 San Mateo back of Stanford University (at Schenkel's Camp); Los Trancos Creek Comment
  UC1121088  Rhododendron macrophyllum N. K. Carlson 1935-7-2 112 San Mateo 5 mi s of Bellvale 304 Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  RSA176616  Ribes californicum John H. Thomas 1964-4-7 10302 San Mateo Near edge of Searsville Lake. Jasper Ridge Biological experiment area, about 5 miles SW of Palo Alto. Coordinates are approximate. Comment
  CAS-BOT-BC92999  Ribes californicum var. californicum Lewis S. Rose 1949-3-18 49007 San Mateo Hillsides west of Belmont. 91 Comment
  JROH2637  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6205023  Ribes divaricatum L. S. Rose 1965-1 65008 San Mateo Searsville Lake. Comment
  CAS-BOT-BC173470  Ribes malvaceum James B. Roof; Walter Knight; Irja Knight 1965-6-20 1127 San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC173471  Ribes malvaceum Fred Hemphill 1973-4-15 643 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC173476  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  CAS-BOT-BC173478  Ribes malvaceum L. R. Abrams 1904-1-18 58 San Mateo Hills near Stanford Univ. 213 Comment
  CAS-BOT-BC212807  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212817  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  SBBG33468  Ribes menziesii A. D. E. Elmer -Apr-1903 4496 San Mateo Portola Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144631  Ribes sanguineum var. glutinosum Lewis S. Rose 1931-1-25 s.n. San Mateo Belmont Comment
  CAS-BOT-BC144636  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-29 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC144638  Ribes sanguineum var. glutinosum D. E. Breedlove 1974-5-13 36216 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC144641  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-3-1 4470 San Mateo Portola Comment
  CAS-BOT-BC144646  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC144648  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-2-22 2936 San Mateo wooded slope, Coast Range, about 10 miles northwest of Palo Alto 152 Comment
  JROH2673  Ribes sanguineum var. glutinosum John H. Thomas 1964-4-7 10300 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  UC306757  Ribes sanguineum var. glutinosum A. D. E. Elmer March 1903 4470 San Mateo Portola Comment
  CAS-BOT-BC144639  Ribes sanguineum var. glutinosum Walter Knight 1964-9-14 828 San Mateo near summit Peak Mt. Comment
  RSA0019108  Ribes sanguineum var. glutinosum Paul C. Silva 1948-1-31 2620 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  CAS-BOT-BC363094  Rigiopappus leptocladus Le Roy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  UC980030  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo hillsides above Emerald Lake (back of Redwood City) Comment
  RSA0003889  Romanzoffia californica C. F. Baker 1902-4-6 s.n. San Mateo Crystal Springs Lake. Comment
  JEPS97011  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  SEINET11560757  Rorippa curvisiliqua N. L. Gardner 560 San Mateo San Francisco Peninsula, Merced Lake. 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
  POM144072  Rorippa palustris subsp. occidentalis C. F. Baker 1902-10-20 1856 San Mateo Searsville. Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC146690  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge Comment
  CAS-BOT-BC146691  Rosa gymnocarpa Walter Knight; Irja Knight 1964-5-30 601 San Mateo Colma Canyon Comment
  CAS-BOT-BC146696  Rosa gymnocarpa Margaret A. Barry 1937-5-15 85 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  HSC23985  Rosa gymnocarpa Mary Katherine Wicksten 1971-6-24 110 San Mateo Huddart Park, near entrance Comment
  UC311147  Rosa gymnocarpa A. D. E. Elmer May, 1903 4923 San Mateo Pescadero Creek; on the Iverson's Place Comment
  CAS-BOT-BC146704  Rosa gymnocarpa Elizabeth McClintock 1965-3-28 s.n. San Mateo Romanzoffia Ravine Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  SEINET10736898 Image available Rosa gymnocarpa var. gymnocarpa Adolph D. E. Elmer Elmer 4923 San Mateo Pescadero. Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC156646  Rubus bifrons Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152868  Rubus parviflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine - San Bruno Mountain Comment
  CAS-BOT-BC152869  Rubus parviflorus Walter Knight; Irja Knight 1964-5-30 602 San Mateo Colma Creek - San Bruno Mountain Comment
  CDA33988  Rubus parviflorus D. G. Kelch 2011-3-13 11 .057 San Mateo Near Half Moon Bay along Capistrano Creek. 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
  RSA51270  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 51270 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156768  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 1242 San Mateo Half way up Colma Canyon adjacent to creek. San Bruno Mountain Comment
  CAS-BOT-BC156769  Rubus spectabilis Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From bank of Colma Creek. Colma Canyon Comment
  HSC19689  Rubus spectabilis P. A. Murphy 1965-4-15 12 San Mateo 3 mi. from Half Moon Bay on Higgin's Canyon Rd. Comment
  UC12986  Rubus spectabilis J. Burtt Davy 1895-4-21 1061 San Mateo Pilarcitos Creek Comment
  UCR51532  Rubus spectabilis var. franciscanus 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-BC157077  Rubus ursinus L. R. Abrams 1914-10-14 5131 San Mateo Tunitas [Canon] Canyon Comment
  CDA33681  Rubus ursinus D. G. Kelch, D. A. Weinstein 2011-3-13 11 .055-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  LA208244  Rubus ursinus Ira L. Wiggins; 1929-7-4 3775 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  POM140136  Rubus vitifolius Edward L. Greene 1902-1-15 246 San Mateo W side King's Mtn. Comment
  UC1084377  Rumex acetosella G. Thomas Robbins 1937-4-11 74 San Mateo just s San Francisco (along Skyline Boulevard) Comment
  JROH3295  Rumex acetosella John Hunter Thomas 1985-5-21 23667 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whisky Hill Gate. Comment
  JROH3325  Rumex conglomeratus John Hunter Thomas 1977-6-16 18800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421572  Rumex crassus John H. Thomas 1963-5-20 10149 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC433356  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo Comment
  CAS-BOT-BC433358  Rumex crispus Ned Cahill 1974-6-21 349 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433359  Rumex crispus Ned Cahill 1974-5-3 275 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433545  Rumex fueginus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  SEINET4182631  Rumex maritimus var. persicarioides K. Thorne, J. chandler 1986-7-25 4948 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  UC1215067  Rumex occidentalis V. F. Hesse 1962-7-19 3164 San Mateo between ocean and Pescadero 9 Comment
  CAS-BOT-BC433825  Rumex pulcher John H. Thomas 1961-5-7 9293 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC433830  Rumex pulcher Javier Penalosa 1963-3-30 2728 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 91 Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC434134  Rumex transitorius John H. Thomas 1964-6-19 10426 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway. 60 Comment
  JROH2214  Rupertia physodes John H. Thomas 1974-6-27 17455 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JEPS48781  Rupertia physodes James G. Daly 1934-1 380 San Mateo at junction of La Honda Road and Skyline Boulevard Santa Cruz Mts., San Gregorio watershed Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  RSA800143  Ruta chalepensis Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mi from San Bruno Mtn. Park entrance. Comment
  JROH3845  Salix exigua var. hindsiana John H. Thomas 1976-10-16 18403 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  UC469121  Salix fragilis N. L. Gardner Sept. 1927 San Mateo Cypress Lawn Cemetery, near Colma, San Mateo Co., California Comment
  UC492364  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125380  Salix lasiandra var. lasiandra J. Ed. McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton Comment
  JROH3874  Salix lasiandra var. lasiandra John H. Thomas 1973-4-7 16520 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  CAS-BOT-BC107130  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-BC107136  Salix lasiolepis T. C. Zhchokke 1903-3-16 s.n. San Mateo Delta of San Francisquito Creek, near Stanford University Comment
  CAS-BOT-BC107140  Salix lasiolepis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC107141  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University 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
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  CAS-BOT-BC107138  Salix lasiolepis W. R. Dudley 1903-3-16 s.n. San Mateo San Francisquito Creek near stock farm - Santa Cruz Peninsula Comment
  SEINET5884190 Image available Salix lasiolepis L. S. Rose 1965-1 65004 San Mateo Searsville Lake. Comment
  CAS-BOT-BC108253  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  POM176878  Salix scouleriana W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's into Old Mill. Comment
  CAS-BOT-BC129072  Salix scouleriana W. R. Dudley 1900-3-18 s.n. San Mateo Below Jersey Farm near Baden - Santa Cruz Peninsula Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road 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
  CDA33774  Salix sitchensis D. G. Kelch 2011-3-13 11 .051 San Mateo Pacifica. Along sea bluffs Comment
  RSA788843  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC180794  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo Palo Alto Yacht Harbor near airport. Altitude about sea level. Comment
  CDA3229  Salsola soda W. Anderson 1968-8-16 San Mateo West end of Dumbarton Bridge. 0 Comment
  UCLA70089  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San Bruno Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  SEINET12286992  Sambucus caerulea Unknown 1933-1 90 San Mateo Comment
  JROH1671  Sambucus nigra subsp. caerulea John H. Thomas 1973-6-15 16853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236457  Sambucus racemosa subsp. racemosa W. R. Dudley 1894-3-24 s.n. San Mateo Near Pescadero Creek below B. Haywoods, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC236452  Sambucus racemosa subsp. racemosa Nancy Kittle 1981-5-15 067 San Mateo 1 mile west of junction of Highway 280 with Sandhill Road 50 Comment
  SBBG43415  Sambucus racemosa var. racemosa C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  RSA187473  Sanicula arctopoides John H. Thomas 1964-4-30 10347 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  RSA470980  Sanicula arctopoides Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC579535  Sanicula arctopoides H. S. Yates 1935-2-3 5102 San Mateo 0.5 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC223323  Sanicula bipinnatifida A. D. E. Elmer 1903-4-1 4817 San Mateo Lake San Andreas Comment
  JROH342  Sanicula crassicaulis John Hunter Thomas 1977-6-16 18741 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH344  Sanicula crassicaulis John Hunter Thomas 1986-5-1 23996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM319917  Sanicula crassicaulis Barbara Shervanick 1973-4-1 817 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  UC1601284  Satureja douglasii Lewis S. Rose 1933-6-9 33220 San Mateo 3 mi w San Bruno Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283132  Schedonorus arundinaceus J. H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC111415  Schoenoplectus acutus var. occidentalis Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake, Redwood City Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC111607  Schoenoplectus californicus W. Knight; I. Knight 1966-10-4 2050 San Mateo Marsh near Bayshore, P. G. & E. Marsh Comment
  CAS-BOT-BC111780  Schoenoplectus pungens Peter Rubtzoff; Elizabeth McClintock; P. Reeberg 1989-6-3 s.n. San Mateo At mouth of drainage culvert, PG&E marsh. 1 Comment
  CAS-BOT-BC111781  Schoenoplectus pungens var. badius Ira L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  POM312852  Scirpus microcarpus H. L. Mason, Verne Grant 1946-8-28 13093 San Mateo 1 mile west of San Bruno between Santa Cruz and Daly City on Highway 5 Comment
  UC143720  Scirpus pungens Dr. E. B. Copeland 1903-6-15 3336 San Mateo Montara Point; along sea coast Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  UC311083  Scoliopus bigelovii A. D. E. Elmer March, 1903 4559 San Mateo King's Mt. Comment
  UC75028  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mt. Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519001  Scoliopus bigelovii C. F. Leithold 1896-2-24 s. n. San Mateo Woodside Hills Comment
  CAS-BOT-BC519006  Scoliopus bigelovii W. R. Dudley 1895-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519008  Scoliopus bigelovii Harold Block 1926-1-24 s. n. San Mateo Kings Mountain Comment
  CAS-BOT-BC519009  Scoliopus bigelovii W. E. Mason 1917-4-1 s. n. San Mateo La Honda Grade Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  CAS-BOT-BC519019  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519020  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos on road out Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  SEINET3991401  Scoliopus bigelovii Unknown 1972-1-29 1 San Mateo Huddart Park, Woodside Comment
  SEINET5570939  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  CAS-BOT-BC243516  Scribneria bolanderi John H. Thomas 1971-5-2 15869 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
Read comments
Jan 19 2018
  JROH5460  Scribneria bolanderi John Rawlings 2007-3-23 1034 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F, Serpentine, about 50 m. nw of the oak island. 178 Comment
  RSA152269  Scrophularia californica John H. Thomas 1961-5-7 9301 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UCR141418  Scrophularia californica 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
  CDA41914  Scrophularia californica T. C. Fuller 1971-6-1 19883 San Mateo East shore of Crystal Springs Reservoir at junction of Highways 280 and 92. 0 Comment
  SD38739  Scutellaria tuberosa Janet Turner 1933-4-19 3711 San Mateo Emerald Lake Comment
  CAS-BOT-BC59063  Sedum spathulifolium J. H. Thomas 1961-5-7 9320 San Mateo San Bruno Mountain in N part of county. 396 Comment
  CAS-BOT-BC59076  Sedum spathulifolium J. H. Thomas 1974-5-9 17333 San Mateo San Pedro Valley, Northern Part of county, inland from Pacifica. 152 Comment
  UC789323  Sedum spathulifolium A. D. E. Elmer June 1903 4550 p.p. San Mateo toward San Mateo from Crystal Springs Lake; Toward San Mateo from Crystal Springs Lake Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs Comment
  UC580090  Senecio glomeratus Ira L. Wiggins 1934-8-11 6970 A San Mateo salt flats beside tannery Redwood City Comment
  JEPS37223  Senecio hydrophilus W. L. Jepson 1910-8-18 4162 San Mateo Butano Creek Comment
  CAS-BOT-BC364634  Senecio vulgaris Fred Hemphill 1973-3-17 634 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC85779  Sequoia sempervirens W. R. Dudley 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula, near King's Mt. house. Comment
  IRVC7617  Sequoia sempervirens P. W. Rundel 1962-4-12 1020 San Mateo 2 mi. E of Sky Line Hwy, on La Honda Road. Coast Range 610 Comment
  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
  SEINET10929338  Sequoia sempervirens R. D. Sage 1992-1-6 Sage 13397 San Mateo Collected along Purisima Creek Rd trail in Purisima Creek Redwoods Open Space Preserve. 9 km W of Woodside. 244 Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  SEINET3243948  Setaria parviflora John Thomas Howell 1957-1 32805 San Mateo Holy Cross Cemetary, San Mateo Co. Comment
  SJSU10395  Setaria parviflora W. J. Cervenka 1962-10-21 San Mateo Portola Rd near Alpine Rd Comment
  UC28466  Sherardia arvensis J. Burtt Davy Jun 21 1893-Jun 23 1893 1154 San Mateo Pilarcitos Lake and Pilarcitos Canyon Comment
  JROH3825  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  SD39303  Sidalcea malviflora Marie Cummings 1933-5-8 3733 San Mateo Woodside Road Comment
  POM282903  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-3-3 2620 San Mateo Moss Beach. 15 Comment
  CHSC27889  Sidalcea malviflora subsp. purpurea Susan Perkins 1978-3-24 8 San Mateo San Gregorio Beach, 100 yds w of jct Hwys 1 and 84, 9 mi w of La Honda. Bluff n side of San Gregorio Creek. 15 Comment
  CAS-BOT-BC386854  Silene gallica J. H. Thomas 1964-5-9 10377 San Mateo San Gregorio beach. Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC389895  Silene scouleri subsp. scouleri Dean Wm. Taylor 1988-6-5 9792 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  JROH1234  Silybum marianum John Hunter Thomas 1989-5-9 24707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC75379  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  RSA125832  Sisyrinchium bellum G. R. Campbell 1956-4-4 2 San Mateo La Honda Rd (from Highway 5) to Woodside, 3 miles from Mt. Home-Portola road 915 Comment
  SEINET5571657  Smilacina stellata H. S. Gentry 1931-1 3 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  JROH4196  Solanum John Hunter Thomas 1980-11-12 20164 San Mateo Jasper Ridge Biological Preserve, Stanford University. On delta Comment
  UCD129025  Solanum Ed Johnson 1973-8-15 s.n. San Mateo On the perimeter of an orchard. Comment
  UC1125189  Solanum douglasii H. S. Yates 1935-2-3 5007 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  POM209654  Solanum douglasii D. D. Keck 1934-7-7 2970 San Mateo Ano Nuevo Point at Ano Nuevo Creek. Comment
  RSA130408  Solanum douglasii W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown). Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JEPS12100  Solanum furcatum W. L. Jepson 1923-10-15 10256 San Mateo hills w of colma ( vicinity of San Francisco Bay) Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC154183  Solanum umbelliferum R. C. Rollins 1942-4-30 3001 San Mateo S.E. slope of the San Bruno hills, about 1 mile west of Brisbane Comment
  JROH4190  Solanum umbelliferum John H. Thomas 1973-3-12 16496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC26234  Solanum umbelliferum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UCSC007782  Solanum umbelliferum Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH5859  Soleirolia soleirolii Toni Corelli, Ann Lambrecht 2005-7-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, San Mateo Co.; face of Searsville Dam, west side. Comment
  POM57020  Solidago californica C. F. Baker 1901-10-20 58 San Mateo Summit of Coast Range Comment
  RSA675329  Solidago californica L. S. Rose 1932-10-12 32669 San Mateo Kings Mountain. Comment
  CAS-BOT-BC365713  Solidago spathulata Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. West of NBC Tower Comment
  CAS-BOT-BC365750  Solidago spathulata John H. Thomas 1961-8-27 9701 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27367  Solidago spathulata Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7627 San Mateo on lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of the summit of San Bruno Mountain); Guardalupe Valley side of summit San Bruno Mountain 304 Comment
  UC1555381  Solidago spathulata J. A. DeBenedictis 1988-7-13 1543 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC365192  Solidago velutina subsp. californica George Oberlander 1949-7-30 357 San Mateo San Francisco Watershed Reserve. Northern crest of Sawyer Ridge Comment
  RSA195396  Soliva sessilis John H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  CAS-BOT-BC374498  Sonchus asper J. H. Thomas 1949-4-14 286 San Mateo Kings Mountain Comment
  JEPS15054  Sonchus asper L. R. A. 1901-3-16 1144 San Mateo Menlo Park Comment
  POM292654  Sonchus oleraceus Lyman Benson 1928-12-15 837 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  UCSB17217  Sonchus oleraceus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH5524  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-5-22 19574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  UC625361  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Dumbarton Bridge approach; Dumbarton Bridge Comment
  JROH1764  Spergularia John Hunter Thomas 1986-4-30 23984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB1896  Spergularia macrotheca Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-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-BC390698  Spergularia rubra Robert Robertson 1954-5-1 117 San Mateo At Pescadero Beach 9 Comment
  CAS-BOT-BC390704  Spergularia rubra Javier Penalosa 1963-3-30 2752 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft NW of power lines 304 Comment
  CHSC60186  Stachys Jan M. Karaz 1979-5-22 35 San Mateo 500 ft w of Canada College Campus Drive, 1.5 mi w of Hwy 280. 5 Comment
  SD39617  Stachys ajugoides var. ajugoides Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point Comment
  UC32568  Stachys ajugoides var. ajugoides W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UCD23431  Stachys rigida subsp. rivularis A. Bennett 1977-5-29 39 San Mateo 0.7 miles north of Hayne Rd. intersection with Hwy 35. Collected on steep north facing slope in the shade of coast live oaks. Chaparral and oak woodland. 60 Comment
  CAS-BOT-BC374794  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda road, (1.2 mi. e. of Skyline Blvd.). [Locality info from collection label and voucher label combined.] Comment
  CAS-BOT-BC394061  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo San Carlos; Chaparral area north of Malabar Rd. and Melendy Dr. 243 Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1792  Stellaria nitens Toni Corelli 2006-3-22 309 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 5, lost serpentine trail 121 Comment
  CAS-BOT-BC398985  Stellaria nitens Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch Comment
  JROH5391  Stipa miliacea var. miliacea Toni Corelli 2004-7-14 280 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, In causeway, on south side of Leonard's bridge. 106 Comment
  JROH5392  Stipa miliacea var. miliacea Ann Lambrecht 2004-7-20 11 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, about 10 m from W end of Leonard's bridge, and about 2 m N of bridge. Comment
  HSC13372  Stipa pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd., W of San Mateo 91 Comment
  CAS-BOT-BC423014  Stylomecon heterophylla Walter Knight; Irja Knight 1965-4-25 1072 San Mateo San Bruno Mountain. Owl's Canyon Comment
  RSA681533  Symphoricarpos Annuschka Deb 1989-6-13 236 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120029  Symphoricarpos albus var. laevigatus G. H. Mallory 1919-8-20 s.n. San Mateo Near La Honda. Comment
  UC1119620  Symphyotrichum chilense A. E. Wieslander 1935-2-3 506 San Mateo .5 me se of Pigeon Pt.; Santa Cruz Quad. 30 Comment
  CAS-BOT-BC99099  Symphyotrichum chilense Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains - Willow Pond Comment
  UC1544807  Symphyotrichum subspicatum Almut G. Jones 1986-8-23 7251 San Mateo Near Half Moon Bay 50 Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  JROH1279  Tanacetum parthenium Carol Zabel 1989-8-11 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank upstream 20 feet from low-flow crossing on Road C Comment
  JROH5940  Taraxacum officinale John Rawlings 1917-2-22 1958 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Trail 20 85 Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH2999  Taraxia ovata James Newman 1951-4-21 7 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  SEINET4142897  Taraxia ovata James Tanno 1972-4-29 160 San Mateo Pillar Point near Princeton.; 0 6 Comment
  SEINET3157058  Tauschia kelloggii L. S. Rose 1939-5-5 39092 San Mateo San Mateo Canyon 46 Comment
  RSA18325  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo La Honda. Santa Cruz Mts. Comment
  CAS-BOT-BC447469  Tellima grandiflora Walter Knight; Irja Knight 1965-4-11 1064 San Mateo Colma Canyon in wet, shaded area. Comment
  UC311127  Thalictrum fendleri var. polycarpum A. D. E. Elmer June, 1903 4425 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  SBBG68849  Thermopsis californica var. californica S. W. Hutchinson -Apr-1927 San Mateo Redwood City 2 Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  JROH1606  Thysanocarpus curvipes John Hunter Thomas 1986-4-5 23927 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1617  Thysanocarpus curvipes John Hunter Thomas 1989-4-8 24625 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC729635  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo on Alpine Road 1 mi w Skyline Blvd 304 Comment
  JROH1608  Thysanocarpus curvipes John Hunter Thomas 1986-4-9 23929 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old fence and gate (now removed) Comment
  JROH1600  Thysanocarpus curvipes subsp. elegans John Hunter Thomas 1983-4-21 21633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH396  Torilis nodosa John Hunter Thomas 1986-5-15 24045 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH407  Torilis nodosa John Hunter Thomas 1992-5-14 25224 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp 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
  RSA15279  Torreya californica C. B. Wolf 1927-4-3 245 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA45320  Torreya californica I. L. Wiggins 1945-5-5 11160 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  CAS-BOT-BC81498  Torreya californica J. H. Thomas 1949-6-4 598 San Mateo 3.9 miles NW of La Honda on road to Skyline Blvd. Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir 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
  RSA681673  Trichostema lanatum Deb Annuschka 1990-11-16 388 San Mateo Yerba Buena Herbarium. Comment
  POM128507  Trientalis latifolia L. R. Abrams 1902-5-20 2468 San Mateo Kings Mountain Comment
  RSA116711  Trientalis latifolia W. R. Dudley 1903-5-1 s.n. San Mateo in Redwoods on road beyond near Petters and Pescadeno Creek Comment
  UCD117573  Trientalis latifolia D. H. Hartmann 1941-4-26 s.n. San Mateo west of Palo Alto. Comment
  JEPS85234  Trifolium Roy E. Buck and James A. West 1985-4-21 522 San Mateo 3.2 air km ene Franklin Point (on crest of low ridge separating Whitehouse Creek drainage and small lake to s, ca 2.1 air km ne of Whitehouse Canyon Rd and Hwy 1); Cascade Ranch 106 Comment
  RSA40289  Trifolium albopurpureum L. S. Rose 1948-5-16 48114 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  SEINET3523144 Image available Trifolium albopurpureum Lewis S. Rose 1933-5-17 33172 San Mateo Redwood City. Comment
  UCSB18282  Trifolium albopurpureum Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC16490  Trifolium albopurpureum var. dichotomum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JEPS128163  Trifolium angustifolium Eric Wrubel 2012-7-1 NPS 43 San Mateo Golden Gate National Recreation Area. Rancho Corral de Tierra, Spine Trail. Comment
  NY33700  Trifolium bicephalum A. D. E. Elmer 05 1903 4812 San Mateo San Pedro Comment
  UC203053  Trifolium bifidum var. bifidum A. D. E. Elmer April, 1903 4798 San Mateo Portola Comment
  JROH2250  Trifolium bifidum var. decipiens John H. Thomas 1958-5-10 7144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA349487  Trifolium bifidum var. decipiens D. D. Keck 1932-6-1 1790 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  JROH2256  Trifolium cernuum Toni Corelli 2012-5-15 376 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road J 115 Comment
  POM277941  Trifolium ciliolatum Lyman D. Benson 6529 San Mateo Lake Searsville, Stanford University. 152 Comment
  JROH2258  Trifolium depauperatum var. amplectens John H. Thomas 1955-5-6 4990 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  CDA4289  Trifolium dubium T. C. Fuller 1967-6-13 15945 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  SJSU15441  Trifolium fragiferum Toni Corelli 2011-8-31 714 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 8 Comment
  POM18836  Trifolium fucatum var. fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  POM88134  Trifolium fucatum var. fucatum L. R. Abrams 1902-5-4 2424 San Mateo Woodside Comment
  UCSC003369  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 3730 San Mateo on bluff at San Gregorio State Beach, San Mateo County Comment
  JROH2333  Trifolium hirtum John Hunter Thomas 1991-5-28 25066 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  UC147750  Trifolium macraei J. Burtt Davy 1895-5-20 1048 San Mateo Lake Pilarcitos Comment
  UC202836  Trifolium macraei A. D. E. Elmer May, 1903 4713 San Mateo Lake Merced Comment
  CDA27997  Trifolium microcephalum T. C. Fuller 1967-6-13 15940 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 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
  JROH2340  Trifolium oliganthum John H. Thomas 1968-4-19 14306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2360  Trifolium subterraneum John Hunter Thomas 1987-5-7 24264 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2366  Trifolium subterraneum John Hunter Thomas 1989-4-20 24645 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  JROH2368  Trifolium subterraneum John Hunter Thomas 1992-5-5 25216 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH2377  Trifolium variegatum John H. Thomas 1961-4-8 9070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  UC204176  Trifolium wormskioldii A. D. E. Elmer May 1903 4644 San Mateo Lake San Andreas Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4722  Trillium chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek Comment
  JROH4729  Trillium chloropetalum John H. Thomas 1977-4-21 18538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC101805  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  POM204511  Trillium chloropetalum var. chloropetalum I. L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC521007  Trillium chloropetalum var. chloropetalum R. Bacigalupi 1922-3-1 s. n. San Mateo Jones Ranch, Pescadero Creek Comment
  RSA15271  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC521064  Trillium chloropetalum var. giganteum Alice Eastwood 1916-3-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC521072  Trillium chloropetalum var. giganteum Margaret A. Barry 1937-4-21 13 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC521209  Trillium chloropetalum var. giganteum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  POM193597  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Ravine south side of Montana Mountains. Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  UC202804  Trillium ovatum A. D. E. Elmer April, 1903 4752 San Mateo Portola Comment
  UC27282  Triphysaria eriantha subsp. rosea W. L. Jepson 1891-4-4 San Mateo San Bruno Hills Comment
  UC75150  Triphysaria floribunda C. F. Baker 1902-3-22 346 San Mateo South San Francisco Comment
  JROH4137  Triphysaria pusilla John H. Thomas 1968-3-17 14187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1063255  Triphysaria pusilla H. S. Yates 1935-5-8 5208 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. Comment
  SEINET7097920  Triphysaria versicolor subsp. faucibarbata A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  UC419721  Triphysaria versicolor subsp. versicolor Mrs. H. P. Bracelin 1930-10-26 132 San Mateo Ocean Rd between Half Moon Bay and Santa Cruz near Pidgeon Point; Ocean Rd btw Half Moon Bay and Santa Cruz Comment
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5468  Trisetum canescens John Rawlings 2013-4-16 1131 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fence line about 100 m east of the gate. 149 Comment
  JROH4741  Triteleia hyacinthina John Hunter Thomas 1981-4-30 20519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC521593  Triteleia hyacinthina J. I. McMurphy 1906-5-8 s.n. San Mateo Road from Woodside to Crystal Springs Comment
  JROH5911  Triteleia hyacinthina J. Nordby 1982-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland along roadside, near oak woodlands Comment
  JROH4742  Triteleia ixioides subsp. ixioides John Rawlings 2011-6-22 1070 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge down slope from Escobar Gate. 130 Comment
  SD39087  Triteleia ixioides subsp. ixioides Marie Cummings 1933-5-23 116 San Mateo La Honda. Comment
  JROH4749  Triteleia laxa John H. Thomas 1974-4-13 17147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4754  Triteleia laxa John Hunter Thomas 1991-5-2 25015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526787  Triteleia laxa George Oberlander 1950-5-6 892 San Mateo Under Douglas Fir, Cahill Ridge Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. Comment
  RSA17882  Typha latifolia Carl B. Wolf 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  CAS-BOT-BC91220  Umbellularia californica William R. Dudley 1894-6-30 s.n. San Mateo San Franciscquito Creek, below Palo Alto. Comment
  CAS-BOT-BC91227  Umbellularia californica Ned Cahill 1974-4-30 234 San Mateo Near the intersection of Canada and Edgewater roads, about 3 miles westward from Redwood City. Comment
  JROH142  Umbellularia californica John Hunter Thomas 1981-12-21 20792 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH146  Umbellularia californica John Hunter Thomas 1991-12-28 25117 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181986  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 183 Comment
  UCR2995  Umbellularia californica Wm. Horn Jr. 1963-4-9 630409- 01 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  CAS-BOT-BC91221  Umbellularia californica W. R. Dudley 1894-11-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Big Redwood, Ramsay's Place, Searsville. Comment
  JROH1295  Uropappus lindleyi John Hunter Thomas 1988-5-3 24443 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  CAS-BOT-BC404024  Urtica dioica subsp. holosericea George Oberlander 1950-4-16 696 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  JEPS15041  Utricularia macrorhiza Roxana S. Ferris Oct. 1920 2103 San Mateo 2nd. mud lake Coalmine Ridge; Santa Cruz Mt. Peninsula, Coalmine Ridge Comment
  CAS-BOT-BC238185  Vaccinium cespitosum Peter W. Fritsch; Doug Allshouse 2012-10-19 1950 San Mateo San Bruno Mountain County Park, west end of San Bruno Mountain, at Kamchatka Point just below the Ridge Trail 318 Comment
  CAS-BOT-BC199350  Vaccinium ovatum W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  CAS-BOT-BC199351  Vaccinium ovatum Elmer I. Applegate 1895-3-9 307 San Mateo Summit Springs, Santa Cruz Mountains, road to La Honda Comment
  CAS-BOT-BC199356  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo Kings Mountain Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199359  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo King's [Kings] Mountain Comment
  POM176866  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UCD118084  Vaccinium ovatum Janet Jacob 1951-4-1 52 San Mateo On ridge 7 miles east of Pescadero. Comment
  POM131821  Vaccinium parvifolium E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek. Comment
  CAS-BOT-BC76140  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  CAS-BOT-BC76141  Vancouveria planipetala J. H. Thomas 1954-4-15 3907 San Mateo About 1.5 mile southwest of Searsville Lake. 228 Comment
  CAS-BOT-BC76142  Vancouveria planipetala W. R. Dudley 1905-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. Road beyond Iverson's near Pescadero Creek. Comment
  SBBG33515  Vancouveria planipetala A. D. E. Elmer -May-1903 4922 San Mateo Iverson's Place, Pescadero Crk Comment
  UC74931  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin Comment
  SEINET3381842 Image available Velaea kelloggii Lewis S. Rose 1939-5-5 s.n. San Mateo San Mateo Canyon. 46 Comment
  RSA18513  Verbena lasiostachys var. lasiostachys Carl B. Wolf 1927-7-14 607 San Mateo Summit of Kings Mountain Rd. Comment
  JROH4274  Verbena lasiostachys var. scabrida D. E. Breedlove 1971-5-31 19367 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  POM15417  Veronica americana Copeland 1903-6-16 s.n. San Mateo Montara Pt. [county not specified] Comment
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Jun 10 2012
  RSA14507  Veronica americana I. L. Wiggins 1935-8-24 8162 San Mateo Marshy creek entering bay at Moss Beach. Comment
  JROH4150  Veronica arvensis John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278032  Vicia angustifolia Lyman D. Benson 1930-5-21 2144 San Mateo Lake Searsville. 152 Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  SBBG30068  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  UC618588  Vicia benghalensis John Thomas Howell 1938-6-4 13886 San Mateo Burlingame Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  UC101723  Vicia gigantea C. F. Baker 1902-4-12 506 San Mateo San Gregorio Comment
  RSA397993  Vicia gigantea Emery M. Whilton 1935-2-23 s.n. San Mateo Near Mussel Rock Comment
  SEINET2064196  Vicia nigricans subsp. gigantea C. W. Sharsmith 1947-4-13 6750 San Mateo Summit of seaward border of coastal bluff, Pescadero Beach, near Pescadero Point Comment
  JROH2452  Vicia sativa subsp. sativa John Hunter Thomas 1988-4-21 24403 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge over San Francisquito Creek Comment
  UCSC008143  Vicia sativa subsp. sativa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SD37861  Vicia semicincta Edith A. Purer 1932-7-18 4021 San Mateo Near Pigeon Point, roadside Comment
  UCR121557  Vicia tetrasperma George K. Helmkamp, E. A. Helmkamp 1999-6-28 4979 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA15206  Vinca major C. B. Wolf 1926-10-19 s.n. San Mateo Near La Honda. Santa Cruz Mts. Comment
  CAS-BOT-BC264032  Viola adunca W. R. Dudley 1896-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC264037  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  CAS-BOT-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-BC264047  Viola adunca Alice Eastwood 1915-3-13 s.n. San Mateo San Bruno hills Comment
  UC566140  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  CHSC56604  Viola glabella Steven Triano 1988-5-24 169 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  UC581528  Viola glabella Herbert L. Mason 1937-4-23 3627 San Mateo La Honda. Comment
  CAS-BOT-BC536569  Viola glabella Herbert L. Mason 1927-4-23 3672 San Mateo La Honda Comment
  POM135301  Viola glabella Stewart H. Burnham</