Search Results — 2000 specimen records retrieved (1343 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0025756  Abronia latifolia H. A. Barker 1927-5-14 667 San Mateo North of Half Moon Bay. Comment
  SEINET11941813  Abronia latifolia M. T. Doutt 1931-1 190 San Mateo Ano Nuevo Pt Comment
  UC101374  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  OBI48988  Acaena pinnatifida Michener & Bioletti, Bioletti May 1892 s.n. 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
  RSA18356  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo N of Pigeon Pt, San Mateo Comment
  UC1187063  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo w of Redwood City (Emerald Lake); Emerald Lake Comment
  UC1397619  Acanthomintha duttonii H. Dutton and Miss H. Walker May 26 1915-May 29 1915 321 San Mateo near Menlo Golf Club Comment
  UC517976  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  CAS-BOT-BC333288  Acer macrophyllum W. R. Dudley 1906-6-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek, near Cedro Cottage, Stanford Univ. Comment
  SJSU10875  Acer macrophyllum E. C. Garbett 1960-4-13 San Mateo Corte Madera Creek, Alpine Rd Comment
  UCSB11438  Acer macrophyllum Olson, Jim 1962-4-15 San Mateo 1 mile east of Portola State Park on Portola State Park Road 243 Comment
  JROH166  Acer negundo John H. Thomas 1959-4-5 7669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC336921  Acer negundo var. californicum Carl B. Wolf 1930-11-5 1809 San Mateo 4 miles west of La Honda, Santa Cruz Mtns. 91 Comment
  CAS-BOT-BC21552  Achillea millefolium John H. Thomas 1955-4-6 4835 San Mateo San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC21584  Achillea millefolium Fred Hemphill 1973-5-6 760 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 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-BC21600  Achillea millefolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  RSA176744  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC29102  Achyrachaena mollis Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC29103  Achyrachaena mollis W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  SEINET957844  Acmispon brachycarpus A. D. E. Elmer 1903-1 3698 San Mateo Leland Stanford universoty. Belmont. Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2083  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2100  Acmispon wrangelianus John H. Thomas 1975-5-2 17859 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049899  Acmispon wrangelianus H. W. Johansen 1955-4-23 77 San Mateo Crystal Springs Road, 2 miles W of San Mateo. Comment
  CAS-BOT-BC391673  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  UC202840  Actaea rubra A. D. E. Elmer May, 1903 4703 San Mateo Butano Creek Comment
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  CAS-BOT-BC29293  Adenocaulon bicolor Josephine D. Randall 1907-6-29 41 San Mateo Kings Moutain Road Comment
  HSC23907  Adenocaulon bicolor Mary Katherine Wicksten 1971-6-22 89 San Mateo Huddart Park. Dean Trail below Werder Flat Comment
  CAS-BOT-BC139952  Adenostoma fasciculatum Fred Hemphill 1973-4-22 744 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET11914038  Adenostoma fasciculatum Unknown 1932-1 9187 San Mateo Los Fiancos woods Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC65515  Adiantum aleuticum George Oberlander 1950-3-11 440 San Mateo Pilarcitos Canyon Comment
  RSA120509  Adiantum aleuticum S. S. Tillett, I. Sternback 1956-6-25 547 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  CAS-BOT-BC65669  Adiantum jordanii George Oberlander 1950-3-11 512 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC65672  Adiantum jordanii Ned Cahill 1974-5-13 250 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC202671  Aesculus californica A. D. E. Elmer 1903-6-1 4258 San Mateo Crystal Springs Lake Comment
  RSA14803  Aesculus californica Forrest Shreve 1934-6-24 6755 San Mateo Jasper Ridge, W of Palo Alto. Comment
Read comments
Sep 19 2011
  UC615561  Aesculus californica Beryl O. Schreiber 1932-5-29 313 San Mateo near San Mateo Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  CAS-BOT-BC29514  Agoseris Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, summit at Power Line Ridge Comment
  CHSC397  Agoseris apargioides V. Holt 1943-4-21 San Mateo San Mateo 30 Comment
  CAS-BOT-BC29526  Agoseris apargioides W. R. Dudley 1896-11-15 s.n. San Mateo Near shore, Spanishtown Comment
  RSA18512  Agoseris grandiflora C. B. Wolf 1927-7-14 608 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET196521 Image available Agoseris grandiflora W. A. Harvey, J. M. Tucker 1948-6-29 1707 San Mateo Portola State Park ; Road to Portola State Park just west of junction with Highway 5 (Skyline Boulevard). Comment
  JROH479  Agoseris grandiflora var. grandiflora John H. Thomas 1967-5-31 12936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11855015  Agoseris heterophylla Unknown 1933-1 8434 San Mateo Redwood City Comment
  CAS-BOT-BC15226  Agoseris hirsuta W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Santa Cruz Mountain Peninsula Comment
  RSA116783  Agoseris hirsuta W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. Comment
  RSA128659  Agrostis avenacea P. H. Raven 1950-6-2 2272 San Mateo On the stand of San Andreas Lake. Comment
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  RSA116453  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, ca. 5-6 miles south of San Francisco Comment
  SJSU15815  Agrostis densiflora John Rawlings, Toni Corelli 2016-5-13 1898 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  UCD52025  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, 5 miles south of San Francisco. Comment
  CAS-BOT-BC127380  Agrostis exarata R. E. Frenkel 1964-5-22 503 San Mateo SFWD, on Portola Ridge Road, 0.3 mile north of Sawyer Ridge Road. 268 Comment
  JROH4784  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  CAS-BOT-BC139459  Agrostis hallii Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. Juncus Ravine. 182 Comment
  JROH4794  Agrostis hallii John Rawlings 2011-6-21 1085 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to Horse Trail in opening in chaparral a few hundred feet from Escobar Road 125 Comment
  POM87684  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crystal Springs. Comment
  UCD53056  Agrostis microphylla S. S. Tillett; I. Sternback 1956-6-25 545 San Mateo on Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  JROH4795  Agrostis pallens John Rawlings 2011-10-7 1102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just inside Escobar gate south of Road F and east of the gate near the fenceline. 160 Comment
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 Comment
  CAS-BOT-BC138651  Agrostis stolonifera Ira L. Wiggins 1980-8-29 22259 San Mateo Lower north bank of San Francisquito Creek, ca. 150 m. upstream from Pope Street bridge, Menlo Park. Comment
  JROH4162  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4831  Aira caryophyllea John Hunter Thomas 1985-5-22 23681 San Mateo Jasper Ridge Biological Preserve, Stanford University 91 Comment
  JROH4836  Aira caryophyllea John Rawlings 2013-4-19 1152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Mossy verge of Trail 11 through chaparral. 144 Comment
  CAS-BOT-BC138230  Aira caryophyllea var. caryophyllea Fred Hemphill 1973-4-22 845 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC138246  Aira caryophyllea var. caryophyllea H. A. Borthwick 1920-6-1 187 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  UC814494  Alisma plantago-aquatica Lewis S. Rose 1941-9-13 41440 San Mateo stream bottom San Mateo Canyon 60 Comment
  CAS-BOT-BC445394  Alisma plantago-aquatica John Thomas Howell 1926-10-9 2219 San Mateo Near Lake San Andreas Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  UC1206473  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Stanford University Comment
  CAS-BOT-BC469034  Allium falcifolium Robert F. Hoover 1941-4-23 4907 San Mateo Redwood City Hills Comment
  CAS-BOT-BC469037  Allium falcifolium A. D. E. Elmer 1903-4-1 4831 San Mateo Crystal Springs Lake Comment
  JROH4560  Allium peninsulare var. franciscanum John Hunter Thomas 1986-5-8 24027 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM196557  Allium peninsulare var. franciscanum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs Comment
  JROH1323  Alnus rhombifolia Otto M. Sokol 1953-5-21 100 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam, Searsville Lake Comment
  CAS-BOT-BC169342  Alnus rubra John H. Thomas 1955-3-18 4686 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  RSA118964  Ambrosia chamissonis L. S. Rose 1956-8-13 56144 San Mateo San Mateo County, Princeton. 6 Comment
  SD39995  Ambrosia chamissonis Edith A. Purer 1933-7-27 5352 San Mateo Near strand at Pigeon Point on low sand dunes Comment
  RSA175131  Amelanchier pallida Robert F. Thorne 1963-6-9 32232 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  CAS-BOT-BC136831  Amelanchier utahensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC136835  Amelanchier utahensis L. R. Abrams 1916-4-22 5577 San Mateo Pilarcitos [Canon] Canyon 3 Comment
  CAS-BOT-BC136827  Amelanchier utahensis J. Ed. McClellan 1941-4-20 s.n. San Mateo Hills west of San Mateo Comment
  JROH1341  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  POM287420  Amsinckia intermedia Lyman Benson 1935-4-27 6422 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  UC1094083  Amsinckia intermedia Francia Chisaki 1953-6-6 567 San Mateo about 4 mi s of San Gregorio (on Hwy #1) Comment
  UC1220416  Amsinckia lunaris Jerry Powell 1963-5-3 356 San Mateo s and se facing slopes San Bruno Mountain (north tank hill) Comment
  CAS-BOT-BC27473  Amsinckia maculata Alice Eastwood 1915-6-13 4723 San Mateo Granada Comment
  RSA88321  Amsinckia spectabilis Alice Eastwood 1915-6-13 4723 San Mateo Granada. Comment
  SEINET7062815  Amsinckia spectabilis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45194  Anaphalis margaritacea Saichi Kawahara 1968-7-29 459 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  UC1125507  Anaphalis margaritacea T. Tyrrell 1928-9-26 10 San Mateo Pomponio Creek; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC64291  Anaphalis margaritacea Delzie Demaree 1938-8-20 18061 San Mateo South San Francisco Comment
  CAS-BOT-BC273173  Anisocarpus madioides Ira L. Wiggins 1925-4-1 1663 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC273183  Anisocarpus madioides James I. McMurphy 1909-5-25 s.n. San Mateo La Honda Comment
  JROH502  Anthemis cotula John H. Thomas 1977-6-16 18757 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH508  Anthemis cotula John Hunter Thomas 1982-7-2 21053 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC280643  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  SD227715  Anthriscus caucalis G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3745 San Mateo Portola Valley: Golden Hills Rd along Trancos Creek. 106 Comment
  RSA112399  Aphanes occidentalis Hester R. Davis 1920-4-12 36 San Mateo San Mateo County: Near Searville Lake Comment
  UC635107  Aquilegia formosa H. L. Mason 1927-4-23 3674 San Mateo summit of rd betw La Hunda and Pescadero Creek Comment
  CAS-BOT-BC17331  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mountains. 365 Comment
  CAS-BOT-BC17337  Arabis blepharophylla David D. Keck 1933-5-11 2304 San Mateo Montara Summit, Montara Mountain. Comment
  OBI15221  Arabis blepharophylla Lewis S. Rose 1961-4-5 61032 San Mateo San Bruno Mts 366 Comment
  CAS-BOT-BC171643  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC128670  Arbutus menziesii J. H. Thomas 1949-4-14 275 San Mateo King's Mountain Comment
  CAS-BOT-BC304414  Arbutus menziesii A. D. E. Elmer 1903-5-1 4515 San Mateo Searsville Lake Comment
  JROH1919  Arbutus menziesii John H. Thomas 1974-5-29 17397 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  UC311549  Arbutus menziesii A. D. E. Elmer May, 1903 4515 San Mateo Scarsville Lake Comment
  JROH5562  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24170  Arctostaphylos andersonii W. R. Dudley 1905-6-12 s.n. San Mateo Trail below China Pt., Pescadero Creek. Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  LA42267  Arctostaphylos andersonii E. C. Sutliffe; 1934-2-2 sn San Mateo Kings Mountain Comment
  SEINET11989200  Arctostaphylos andersonii var. imbricata E. McClintock, Knight, W.; Knight, I. 1982-1 4647 San Mateo from windy Kamchatka Point, San Bruno Mountain 351 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
  SEINET11988253  Arctostaphylos crustacea Unknown 1959-1 321 San Mateo 3.5 mi from junction CA 5 on Kings Mt. Rd Comment
  JROH1926  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681637  Arctostaphylos densiflora Annuschka Deb 1989-1-27 5 San Mateo Woodside. Comment
  CAS-BOT-BC24734  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4420 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 102 Comment
  CAS-BOT-BC24735  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4421 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 103 Comment
  RSA130907  Arctostaphylos hookeri subsp. hookeri E. K. Balls 1958-7-19 23563 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 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
  UCD144586  Arctostaphylos montaraensis Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd. Along Hazelnut Trail. 152 Comment
  SEINET11987172  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4087 San Mateo Strybing Arboretum, San Francisco, orig. from San Bruno Mt. in 1963 Comment
  SEINET11989285  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4447 San Mateo San Pedro County Park, Pacifica Comment
  SEINET11993723  Arctostaphylos montaraensis W. Knight, Knight, I.; Wells, P. V. 1986-1 5373 San Mateo San Bruno Mountain 343 Comment
  RSA633501  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27574 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633502  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27570 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44702  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CDA28982  Arctostaphylos regismontana D. G. Kelch 2009-6-9 9 .395 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
Read comments
Aug 22 2011
  POM131773  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain. West side of King's Mountain. Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  RSA636739  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24640 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636742  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24637 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UC1120832  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 1 San Mateo near Woodside road to King's Mountain; Santa Cruz Quadrangle 182 Comment
  UC1120849  Arctostaphylos regismontana A. E. Wieslander 1939-7-16 896 San Mateo Kings Mt.-Sierra Moreno Santa Cruz Quadrangle Comment
  UC484125  Arctostaphylos regismontana Carl B. Wolf 1930-11-6 1811 San Mateo Skyline Blvd 2 mi n summit of Kings Mt. 640 Comment
  UC762307  Arctostaphylos regismontana R. F. Hoover 1941-2-12 4768 San Mateo Kings Mountain Comment
  UC83852  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo about summit; King's Mountain Comment
  UC876529  Arctostaphylos regismontana Lewis S. Rose 1934-2-10 34026 San Mateo Skyline Blvd 4 mi s Kings Mountain (region of type) Comment
  CDA34054  Arctostaphylos sensitiva D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .155 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JEPS90462  Arctostaphylos tomentosa subsp. crinita Dean W. Taylor 1994-7-5 14744 San Mateo ca. 2 mi se Pescadero (far western end of ridge, on private road that leaves Cloverdale Rd. 0.3 mi s of Pescadero High School); Santa Cruz Mountains, Butano Ridge 228 Comment
  RSA636839  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24649 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120136  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1464 San Mateo 4.5 mi w Woodside; Santa Cruz Quadrangle Comment
  SEINET11988249  Arctostaphylos tomentosa var. tomentosiformis Unknown 1959-1 325 San Mateo 1.2 mi from junction CA 5 on King's Mt. Road Comment
  SEINET11989206  Arctostaphylos uva-ursi E. McClintock, Knight, W.; Knight, I. 1982-1 4637 San Mateo NE of parking lot, San Bruno Mountain 335 Comment
  UCD52042  Arctostaphylos uva-ursi subsp. coactilis Roman Gankin 1959-3-25 328 San Mateo Near ridge of San Bruno Mountain, South San Francisco, San Mateo County, California. 1/4 mi. e. of KRON TV transmitter. Comment
  SEINET11987302  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mts Comment
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  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
  CAS-BOT-BC47697  Armeria maritima subsp. californica W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC47698  Armeria maritima subsp. californica Cynthia Steele 1948-5-29 115 San Mateo Pescadero Beach Comment
  CAS-BOT-BC47699  Armeria maritima subsp. californica J. H. Thomas 1954-6-11 4286 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  POM268911  Armeria maritima subsp. californica Lyman Benson 1930-6-14 2149 San Mateo San Gregorio. 30 Comment
  SD39619  Armeria maritima subsp. californica Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point. Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  CAS-BOT-BC84885  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain, Point San Bruno Comment
  CAS-BOT-BC84886  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain, Power Line Ridge Comment
  POM288963  Artemisia californica Lyman Benson 1928-11-25 785 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  CAS-BOT-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC93639  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC93641  Artemisia pycnocephala John H. Thomas 1961-5-13 9336 San Mateo Coastal sand dunes at Franklin Point Comment
  POM165704  Asarum caudatum A. D. E. Elmer 1903-06 s.n. San Mateo Butano Creek Comment
  UC141855  Asarum caudatum Dr. E. B. Copeland 1903-5-9 3250 San Mateo Mountains beyond Pescadero Creek 304 Comment
Read comments
Oct 16 2021
  UCD137830  Asarum caudatum R. E. Dengler 1960-4-13 32 San Mateo Purissima Creek Canyon. 251 Comment
  JROH436  Asclepias fascicularis John Hunter Thomas 1982-9-23 21161 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI25837  Asclepias fascicularis Lewis S. Rose 1965-8-27 65092 San Mateo Emerald Lake, W of Redwood City 122 Comment
  RSA176418  Asclepias fascicularis John H. Thomas 1964-7-9 10444 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  RSA0025139  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. San Bruno Mountains. Comment
  SEINET946245  Asteraceae J. A. Reese 1962-1 San Mateo In rear of home of J.J. Reese; 286 Whiskey Hill Road, Woodside 122 Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  CAS-BOT-BC186761  Astragalus gambelianus Deborah Hichborn 1920-4-19 s.n. San Mateo Woodside Comment
  CAS-BOT-BC186765  Astragalus gambelianus H. A. Dutton 1900-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC186770  Astragalus gambelianus Lewis S. Rose 1956-7-2 56113 San Mateo Skyline Blvd., hills w. of San Mateo 182 Comment
  JROH1986  Astragalus gambelianus Duncan M. Porter 1960-5-5 676 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1991  Astragalus gambelianus John H. Thomas 1974-4-24 17184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  CAS-BOT-BC186754  Astragalus gambelianus W. R. Dudley 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills 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
  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
  RSA18446  Astragalus nuttallii C. B. Wolf 1927-6-29 s.n. San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC194426  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco Comment
  CAS-BOT-BC177968  Astragalus nuttallii var. virgatus W. R. Dudley 1909-10-4 s.n. San Mateo Hills above Mussel Rock - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC177973  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-29 s.n. San Mateo Pescadero Hills - Santa Cruz Mountain Peninsula Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  JEPS54823  Astragalus pycnostachyus W. L. Jepson 1910-8-17 4158 San Mateo Tunitas Creek Comment
  CAS-BOT-BC193092  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  SJSU15402  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 b San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  UC863038  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood, John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  UCD97426  Atriplex hortensis Malcolm A. Nobs; S. Galen Smith 1949-8-27 1619 San Mateo E of Redwood City. Comment
  CAS-BOT-BC146082  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo Ca. 3 km. northeast of Pescadero. Comment
  SD110280  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio Comment
  CAS-BOT-BC146213  Avena brevis John Thomas Howell 1954-6-16 30003 San Mateo Belmont. Ralston Avenue at 6th. Comment
  CAS-BOT-BC146000  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo Northeast side of S.P. right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  CAS-BOT-BC389748  Avena fatua M. Danielson 1966-4-23 s.n. San Mateo Hillside east of Canada Road Comment
  UCD56092  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  UC202031  Azolla filiculoides Dr. P. B. Kennedy 1917-4-29 San Mateo Colma Creek in San Francisco Comment
  CAS-BOT-BC98694  Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC98695  Baccharis douglasii Josephine D. Randall 1907-7-23 57 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC98696  Baccharis douglasii Theresa Gertrude Williamson 1923-8-4 s.n. San Mateo Near La Honda Comment
  UC893646  Baccharis glutinosa Lewis S. Rose 1941-10-31 41172 San Mateo Searsville Lake 91 Comment
  CAS-BOT-BC99503  Baccharis pilularis John H. Thomas 1961-8-27 9706 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC99518  Baccharis pilularis H. L. Mason 1922-3-27 s.n. San Mateo near mouth of Arroyo de los Frijoles Comment
  CAS-BOT-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99521  Baccharis pilularis Ned Cahill 1974-10-8 376 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99527  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek toward Searsville Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
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Feb 2 2012
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  CAS-BOT-BC16620  Barbarea orthoceras Fred Hemphill 1973-4-8 621 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16632  Barbarea orthoceras Catherine A. Toschi 1963-3-17 63 :63 San Mateo East slope San Bruno Mountains below radio station. 213 Comment
  CAS-BOT-BC16633  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-14 933 San Mateo San Bruno Mountain. Manzanita Dyke north of mountain summit. Comment
  CAS-BOT-BC16642  Barbarea orthoceras W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Near head of San Andreas Lake. Comment
  JROH1441  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1451  Barbarea orthoceras John Hunter Thomas 1987-4-7 24175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near new bridge over San Francisquito Creek Comment
  JROH3926  Bellardia trixago John Hunter Thomas 1987-5-19 24291 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3919  Bellardia trixago John Hunter Thomas 1980-5-6 19931 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  RSA681565  Berberis nevinii Annuschka Deb 1989-4-14 88 San Mateo YBN Demonstration Garden 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-BC75869  Berberis pinnata W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Bank of ravine north of Seal Cove. Comment
  CAS-BOT-BC75872  Berberis pinnata Alice Eastwood 1913-2-22 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC75867  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Near pass to Calera Valley north of the Montara Mountains. Comment
  UCD97702  Beta vulgaris subsp. maritima Malcolm A. Nobs; S. Galen Smith 1949-8-27 1620 San Mateo E of Redwood City. Comment
  UC662425  Bidens pilosa H. P. Chandler 1941-12-4 San Mateo 1/2 mi e of Half Moon Bay (along highway) Comment
  SBBG33469  Blennosperma nanum var. nanum A. D. E. Elmer -Apr-1903 4521 San Mateo San Bruno Hills Comment
  POM32550  Boisduvalia densiflora var. densiflora A. D. E. Elmer 1903-06 4273 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  JROH3883  Boykinia occidentalis H. J. Dengler 1969-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North bank of San Francisquito Creek, opposite the base of trail to S.F. Creek on N.E.J.R., just above "falls" in creek. Comment
  JROH5713  Brachypodium distachyon John Rawlings 2015-4-26 1442 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of Field Station 119 Comment
  SEINET251703 Image available Brachypodium sylvaticum John Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC30257  Brassica nigra Alice Eastwood; John Thomas Howell 1939-7-9 7439 San Mateo Skyline Blvd. east of La Honda. Comment
  JROH1456  Brassica nigra John H. Thomas 1967-3-26 12419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36671  Brassica oleracea J. Ed. McClellan; Bonnie McClellan 1972-3-22 s.n. San Mateo In abandoned field on Highway 1 opposite Princeton. Comment
  RSA15631  Brassica oleracea C. B. Wolf 1927-6-15 1468 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. 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-BC36796  Brassica rapa Javier Penalosa 1963-2-23 2662 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC186702  Brassicaceae Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo On San Bruno Point Comment
  CAS-BOT-BC145325  Briza minor H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of roadside. 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
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC145337  Briza minor Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillcrest Boulevard, South San Francisco. Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  UCR101608  Briza minor George K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  IRVC9059  Brodiaea elegans P. W. Rundel 1964-7-8 1361 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  CAS-BOT-BC484350  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By road to Searsville Comment
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39527  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo 121 Comment
  CAS-BOT-BC483168  Brodiaea terrestris subsp. terrestris John H. Thomas 1971-5-2 15808 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC483173  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  JROH4968  Bromus berteroanus Richard Hobbs 1982-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Area "C" Serpentine, within fertilized plot in enclosure. Comment
  UCD57754  Bromus berteroanus Margaret Joy Marshall 1977-4-9 s.n. San Mateo San Mateo. Canada and Edgewood Rd. 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
  UCD164091  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD58154  Bromus carinatus Janet Jacob 1951-4-1 64 San Mateo 7 miles east of Pescadero. Comment
  UCD58232  Bromus carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC148996  Bromus carinatus var. carinatus W. R. Dudley 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. Near La Honda. 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
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CAS-BOT-BC148769  Bromus carinatus var. marginatus Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. In valley west of Guadlupe Hills. 76 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
  CDA31079  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  JROH4912  Bromus diandrus John Rawlings 2013-3-23 1130 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot from the Sun Field Station. 120 Comment
  SEINET3922418  Bromus diandrus Robert A. Norris 1984-3-21 4657 San Mateo Brushy W-facing slope of Blue Blossom Hill in the San Bruno Mts.; 0 Comment
  JEPS128403  Bromus hordeaceus Adam C. Schneider 2013-5-17 130 San Mateo Crystal springs Reservoir. Comment
  JROH4918  Bromus hordeaceus John H. Thomas 1963-5-15 10093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  JROH4933  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM264990  Bromus marginatus I. L. Wiggins 1929-5-10 3672 San Mateo Pigeon Point Comment
  RSA320909  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  SEINET10520334  Bromus molliformis Delzie Demaree 1932-5-16 Demaree 9141 San Mateo Spring Valley Road. Comment
  CAS-BOT-BC161749  Bromus rubens Fred Hemphill 1973-4-22 787 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC233709  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street, Redwood City 7 Comment
  POM272601  Cakile edentula Lyman Benson 1937-6-27 8396 San Mateo Moss Beach. 3 Comment
  RSA176866  Cakile maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC676751  Cakile maritima Reed C. Rollins 1941-7-19 2962 San Mateo Half Moon Bay Comment
  POM199081  Calamagrostis A. D. E. Elmer 1903-06 4693 San Mateo San Pedro Comment
  CAS-BOT-BC185304  Calamagrostis koelerioides W. R. Dudley 1894-7-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Ridge La Honda Road. Comment
  CAS-BOT-BC185149  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  UC203510  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
  JROH3323  Calandrinia ciliata John H. Thomas 1973-3-11 16478 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38112  Calandrinia ciliata Marie Cummings 1933-5-3 69 San Mateo Woodside Comment
  JROH1636  Callitriche marginata John H. Thomas 1970-4-4 15544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116749  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn Peninsula, crow foot pond on alpine road opposite the Fitzpatrick place. Comment
  CAS-BOT-BC85765  Calocedrus decurrens George Oberlander 1949-9-25 397 San Mateo San Francisco Watershed Reserve - Valley between Fiefield and Sawyer Ridges Comment
Read comments
Aug 28 2018
  RSA130402  Calochortus albus Le Roy Abrams 1914-05 5224 San Mateo Searsville Reservoir. Comment
  UCD23297  Calochortus albus Alan T. Whittemore 1976-5-29 118 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  CAS-BOT-BC492202  Calochortus albus George Oberlander 1950-5-6 975 San Mateo Among Redwood, Cahill Ridge Comment
  JROH4623  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam 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
  POM291026  Calochortus luteus Lyman Benson 1930-5-3 2117 -A San Mateo Hills by Stanford University; Santa Cruz mountain range, Corte Madera Creek watershed 152 Comment
  SEINET12044179  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  POM161183  Calochortus tolmiei Rimo C. Bacigalupi 1922-5-15 s.n. San Mateo New La Honda Grade Comment
  CAS-BOT-BC132539  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC270667  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  JROH561  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH566  Calycadenia multiglandulosa John H. Thomas 1974-4-25 17207 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5781153 Image available Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  RSA81618  Calycadenia multiglandulosa subsp. robusta James I. McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Comment
  POM129524  Calystegia purpurata A. D. E. Elmer 1903-06 4299 San Mateo Pescadero Creek Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA394835A  Calystegia soldanella E. A. Purer 1933-7-27 18830 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC436449  Calystegia subacaulis Ned Cahill 1974-4-29 194 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1846  Calystegia subacaulis subsp. subacaulis John H. Thomas 1968-4-19 14300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY679557  Camissonia cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 03 1903 4942 San Mateo San Pedro. Comment
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  SEINET10463019  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo LA HONDA GRADE Comment
  CAS-BOT-BC37682  Cardamine californica C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  CHSC56974  Cardamine californica var. integrifolia Steven Triano 1988-5-24 184 San Mateo Redwood forest ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  RSA3919  Cardamine californica var. integrifolia Josephine Randall 1907-6-8 118 San Mateo Portola. Santa Cruz Peninsula. Comment
  POM176892  Cardamine californica var. integrifolia W. R. Dudley 1894-3-28 s.n. San Mateo By Corte de Madera Creek below McDonough s Ranch. Santa Cruz Peninsula. Comment
  CDA3669  Cardamine hirsuta Wm. Davis 1958-3-26 187 -58 San Mateo El Camino Real, San Mateo. 0 Comment
  CAS-BOT-BC166805  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC37987  Cardamine oligosperma John H. Thomas 1964-8-30 10372 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1501  Cardamine oligosperma John Hunter Thomas 1987-4-7 24173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian acorn grinding rock Comment
  CAS-BOT-BC37990  Cardamine oligosperma W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine above Pilar Point. Comment
Read comments
Oct 29 2021
  UCD164673  Cardamine oligosperma Peter Rubtzoff 1976-3-28 8451 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-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  CAS-BOT-BC281835  Carduus tenuiflorus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC281837  Carduus tenuiflorus George Oberlander 1950-5-21 895 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CDA6893  Carduus tenuiflorus W. S. Ball 1946-4-19 San Mateo 5 miles below Half Moon Bay. 0 Comment
  RSA22241  Carduus tenuiflorus J. T. Howell 1939-6-16 14741 San Mateo Skyline Blvd. near Crystal Springs Lake Comment
  RSA18451  Carex Carl B. Wolf 1927-6-29 556 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC19542  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  SJSU2296  Carex brevicaulis C. W. Sharsmith 1950-4-16 6625 San Mateo coastal bluff, Pescadero Point near Pescadero Comment
  CAS-BOT-BC18936  Carex densa Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC18946  Carex densa Kellogg; Brannan 1870-6-1 s.n. San Mateo San Gregorio Creek. Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC30023  Carex densa J. Burtt Davy 1893-6-17 787 San Mateo Belmont Comment
  RSA91589  Carex densa L. S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  RSA91590  Carex densa J. T. Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  SEINET7556706 Image available Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near south San Francisco. Comment
  UCD140265  Carex densa John Thomas Howell 1938-5-1 13785 San Mateo near South San Francisco. Comment
  JROH4336  Carex divulsa subsp. divulsa John Rawlings 2013-5-7 1175 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the lake side and near east end of Leonard's Bridge on the bank of the channel 107 Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  CAS-BOT-BC119346  Carex obnupta W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  UCR279900  Carex obnupta Peter Rubtzoff, Roman Gankin 1975-5-21 7965 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117652  Carex serratodens Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC116820  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5254 San Mateo 2 mi N of Pescadero Comment
  CAS-BOT-BC116830  Carex subbracteata var. subbracteata W. R. Dudley 1900-3-17 s.n. San Mateo Field north of Seal Cove. Comment
  CAS-BOT-BC176395  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4364  Carex tumulicola Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4365  Carex tumulicola John Hunter Thomas 1978-4-8 19059 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12027448  Castanopsis chrysophylla Unknown 1932-1 9240 San Mateo Kings Mtn Comment
  CAS-BOT-BC249184  Castilleja affinis Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC249191  Castilleja affinis David D. Keck 1940-5-15 5036 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  HSC23994  Castilleja affinis Mary Katherine Wicksten 1971-6-24 121 San Mateo Huddart Park, by park entrance Comment
  OBI59410  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney, Cliff Fenneman and George Bacigalupi, Jr 1954-8-3 4733 San Mateo Extreme NW San Mateo County. Hgts above Thornton Beach close to State Hwy 1 55 Comment
  RSA505385  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5443 San Mateo Just opposite Thornton Beach, east of Highway No. 1 (Calif. State). 61 Comment
  CHSC57099  Castilleja affinis subsp. affinis Steven Triana 1988-5-24 200 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  JEPS15585  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3741 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
Read comments
Feb 28 2011
  UC138696  Castilleja affinis subsp. affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake Comment
  JEPS60423  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-7-21 6663 San Mateo 2.5 mi from Tunitas Road junction with Skyline Boulevard (Tunitas Road) 487 Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 Comment
  POM21102  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada. Comment
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  JROH3960  Castilleja attenuata John H. Thomas 1974-4-25 17193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS25430  Castilleja densiflora subsp. densiflora Rimo Bacigalupi with L. R. Heckard, J. B. Roof and Lynn Harman 1961-4-24 7608 San Mateo Colma Canyon, just below road up to T.V. and radio stations on San Bruno Mountain San Bruno Mountain 228 Comment
  JEPS86228  Castilleja densiflora subsp. densiflora L. R. Heckard 1970-5-5 2453 San Mateo Brisbane, ne edge of San Bruno Mountain San Bruno Mountain 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
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3986  Castilleja densiflora subsp. densiflora John Hunter Thomas 1986-5-8 24026 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101001  Castilleja franciscana G. Oberlander 1950-4-23 897 San Mateo North Cahill Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC243825  Castilleja latifolia C. F. Baker 1906-5-1 799 San Mateo King's Mt. Comment
  CAS-BOT-BC243827  Castilleja latifolia David D. Keck 1931-10-5 1294 San Mateo Four miles northeast of Half Moon Bay, on west side of Cahill Ridge, near headwaters of Pilarcitos Creek 150 Comment
  CAS-BOT-BC243831  Castilleja latifolia David D. Keck 1931-10-5 1289 San Mateo One mile north of Salada Beach, 200 m. from ocean. Comment
  CAS-BOT-BC243835  Castilleja latifolia Peter H. Raven 1950-4-16 1782 San Mateo Colma Canyon, San Bruno Mts. 182 Comment
  JEPS103889  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7852 San Mateo Just south of Pescadero State Beach, on highway 1 Comment
  UC187825  Castilleja latifolia Katharine Brandegee 1890-5-20 San Mateo Searsville Comment
  JROH3991  Castilleja rubicundula subsp. lithospermoides Robert Robertson 1954-4-23 101 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH4005  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1982-4-30 20879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS47422  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-15 1420 San Mateo 0.4 mi above Tunitas Road junction with the Lobitos Creek cut-off road (along Tunitas Road, about 4.5 mi from State Hwy 1) Comment
  SEINET7063807  Castilleja tenuis A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 Comment
  JEPS18908  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5446 San Mateo 1.1 mi n Montara, n limits of town (along Calif Hwy 1, a w end of Montara Mountain); Montara Mountain Comment
  JEPS34326  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1332 San Mateo n flank San Pedro Mt. (along old county road over San Pedro and Montara mountains); , Montara Mts. 243 Comment
  JEPS85726  Castilleja wightii L. R. Heckard 1964-6-24 1393 San Mateo San Bruno Mt.; slope below (n of) transmitting stations 304 Comment
  POM15493  Castilleja wightii C. F. Baker 1902-05 799 San Mateo Kings Mt. Comment
  CDA41388  Castilleja wightii T. I. Chuang 1991-7-2 7879 San Mateo Hill just south of Rockaway Beach. 0 Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  JEPS88823  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mi n Montana Comment
  POM283640  Castilleja wightii Lyman Benson 1930-4-7 2046 San Mateo Moss Beach. Pacific Ocean Bluffs. 15 Comment
  RSA189726  Castilleja wightii Noel Holmgren, James L. Reveal 1966-6-5 2632 San Mateo Skyline Boulevard (California 35), 0.25 mile south of junction with California 1. Comment
  SEINET8357659  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC48304  Ceanothus cuneatus George Oberlander 1950-3-11 499 San Mateo West Sawyer Ridge Comment
  CAS-BOT-BC48305  Ceanothus cuneatus W. R. Dudley 1894-3-1 s.n. San Mateo Ridge between Los Trancos Creek and San Francisquito Creek Comment
  JROH3518  Ceanothus cuneatus var. cuneatus L. R. Abrams 1914-3-1 5057 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC49652  Ceanothus foliosus var. foliosus J. H. Thomas 1949-4-14 280 San Mateo Kings Mountain. Roadside near Woodside. Comment
  CAS-BOT-BC64333  Ceanothus griseus J. Clausen 1941-7-1 1873 San Mateo Summit of Montara Mountain. 274 Comment
  CAS-BOT-BC50042  Ceanothus incanus Walter Knight; James B. Roof 1965-5-9 1136 San Mateo Brotherhood Way - Daly City Comment
  JROH3533  Ceanothus oliganthus var. sorediatus John Hunter Thomas 1981-5-25 20617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15203  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1926-10-19 s.n. San Mateo Near La Honda. Santa Cruz Mts. Comment
  CAS-BOT-BC51243  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  CAS-BOT-BC52284  Ceanothus thyrsiflorus L. R. A. 1901-4-20 1549 San Mateo King's Mountain Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  RSA172196  Ceanothus thyrsiflorus Robert F. Thorne, Percy C. Everett 1963-6-9 32241 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  RSA398960  Ceanothus thyrsiflorus Harlan Lewis 1908-4-20 s.n. San Mateo Crystal Springs Lake. 213 Comment
  UCR12018  Ceanothus thyrsiflorus Coleta A. Lawler 1964-4-19 54 San Mateo 5 mi. E Half Moon Bay: on Half Bay Rd., 1.1 mi W jct Skyline Drive. On north side of road 91 Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  POM177456  Centaurea calcitrapa L. R. Abrams, I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  UC306675  Centaurea calcitrapa A. D. E. Elmer Jul 1903 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274590  Centaurea calcitrapa W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. In San Mateo ravine, Crystal Springs Reservoir Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  RSA0115047  Centaurea calcitrapa Lyman Benson 1945-7-29 11838 San Mateo Bayshore Highway at San Carlos. 3 Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  RSA176536  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CAS-BOT-BC277071  Centaurea melitensis Elizabeth McClintock; Paul Reeberg 1988-7-13 s.n. San Mateo San Bruno Mountains. Near the southwest corner of Guadalupe Valley 76 Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  CAS-BOT-BC277125  Centaurea melitensis Walter Knight; Irja Knight 1964-5-30 606 San Mateo San Bruno Mountain. Along north side of freeway - Colma Canyon. About across from Indian Head Rock Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  CAS-BOT-BC277227  Centaurea solstitialis George Oberlander 1949-7-24 268 San Mateo San Francisco Watershed Reserve. South of San Andreas Lake Comment
  CAS-BOT-BC277231  Centaurea solstitialis Ned Cahill 1974-7-14 351 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CDA38621  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  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
  SD5599  Centromadia pungens Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  CAS-BOT-BC279322  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  CAS-BOT-BC279332  Centromadia pungens subsp. pungens Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  OBI16134  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Blurlingame, Trousdale Dr. & Calif dr. 9 Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside 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
Read comments
Nov 1 2021
  JROH3631  Cercocarpus betuloides var. betuloides John Hunter Thomas 1989-5-30 24754 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to the west of the dam Comment
  UC311195  Cercocarpus betuloides var. betuloides A. D. E. Elmer May, 1903 4530 San Mateo Searsville Lake Comment
  JROH1817  Chenopodium berlandieri var. sinuatum John Rawlings 2011-8-2 1100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  RSA137301  Chenopodium murale John H. Thomas 1949-10-16 1146 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  UC1537380  Chenopodium murale Gordon H. True Jr. 1937-10-16 848 San Mateo near Thornton Beach 3 Comment
  JEPS59761  Chenopodium rubrum L. M. Booth 1932-10-29 2116 San Mateo between San Bruno Mt. and R.R. track (bottom of dry pond); South San Francisco 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
  JEPS57718  Chorizanthe cuspidata var. cuspidata William S. Cooper 1925-5-28 12 San Mateo Salada Comment
  CAS-BOT-BC32865  Chorizanthe cuspidata var. marginata Adolph Daniel Edward Elmer 1903-5-1 4828 San Mateo San Pedro Comment
  SEINET10623943 Image available Chorizanthe cuspidata var. marginata Adolph D. E. Elmer Elmer 4828 San Mateo San Pedro, California. Comment
  RSA152079  Chrysanthemum coronarium John H. Thomas 1961-5-7 9321 San Mateo San Bruno Mountain, western end of mountain 244 Comment
  RSA118979  Chrysolepis chrysophylla Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road. Comment
  RSA212149  Chrysolepis chrysophylla L. S. Rose 1970-7-15 70073 San Mateo Kings Mountain. 915 Comment
  JROH2580  Cicendia quadrangularis Rimo Bacigalupi 1922-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2589  Cicendia quadrangularis John Hunter Thomas 1982-4-30 20883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA1227  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  CDA1228  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  UC306684  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  UCD130569  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  RSA444735  Cirsium occidentale var. venustum Lyman Benson 1937-7-15 8457 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA18506  Cirsium occidentale var. venustum C. B. Wolf 1927-7-14 614 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC280503  Cirsium quercetorum Alice Eastwood 1912-6-3 204 San Mateo Granada Comment
  CAS-BOT-BC280519  Cirsium quercetorum Peter H. Raven 1950-6-3 2261 San Mateo Near San Andreas Lake 121 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
  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
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC285866  Cirsium vulgare Ned Cahill 1974-10-8 380 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SD30683  Cirsium vulgare Edith A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley, near Baden Station. Comment
  RSA60758  Clarkia davyi A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC163962  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  JEPS127894  Clarkia purpurea subsp. quadrivulnera Adam C. Schneider 2013-5-17 178 San Mateo Comment
  JROH3007  Clarkia purpurea subsp. quadrivulnera John Rawlings 2013-4-19 1140 San Mateo Jasper Ridge Biological Preserve, Stanford University. On easterly of the two paths leading from Goya Gate to Road F. 192 Comment
  UC1536827  Clarkia purpurea subsp. quadrivulnera Gordon H. True Jr. 1936-6-14 504 San Mateo canyon s Salada Beach 304 Comment
  CAS-BOT-BC164569  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-18 s.n. San Mateo Field near Iverson's Place naer Peter's Creek Comment
  CAS-BOT-BC165146  Clarkia rubicunda Phillip C. Wheeler 1965-6-19 s.n. San Mateo [Serra] Sierra Point Comment
  CAS-BOT-BC165156  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo Along State Highway 1, just south of Linda Mar Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA6209  Clarkia rubicunda Carl B. Wolf 1932-7-25 3906 San Mateo Hills to the south of Emerald Lake, back of Redwood City 152 Comment
  RSA78149  Clarkia rubicunda A. D. E. Elmer 1903-06 4310 San Mateo Crystal Springs Lake. Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279905  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo just s Linda Mar (along State Highway 1) Comment
  UC1279917  Clarkia rubicunda Peter H. Raven 1957-6-30 11016 San Mateo 5.3 mi e Pescadero (on road along creek); Pescadero Creek Comment
  CAS-BOT-BC165130  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  UC1279932  Clarkia rubicunda Peter H. Raven 1957-6-30 11013 San Mateo 1.8 mi n of bridge Pescadero Creek (State Highway 1) Comment
  UCD104830  Clarkia rubicunda W. A. Harvey; J. M. Tucker 1948-6-29 1709 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  SEINET4149811  Clarkia rubicunda subsp. blasdalei K. Brandegee s.n. San Mateo Between San Pedro and Moss Beach Comment
  JROH3039  Clarkia unguiculata John Rawlings, Ann Lambrecht 2010-6-23 0932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 through small meadow about 700 yards east of the Trail 3 intersection. 81 Comment
  JROH3341  Claytonia parviflora subsp. parviflora John Rawlings, Ann Lambrecht 2010-5-5 1096 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 just south of the dwarf interior live oaks. 144 Comment
  CAS-BOT-BC439988  Claytonia perfoliata subsp. mexicana Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. Summit east of Brisbane Power Line Comment
  CAS-BOT-BC443656  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-4-30 1962 San Mateo Montara 15 Comment
  JROH3351  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1982-4-23 20837 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195552  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2875  Clinopodium douglasii John H. Thomas 1971-5-30 15954 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
  UC729849  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi from Pescadero (on Alpine Creek); Alpine Creek Comment
  POM14815  Collinsia franciscana C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  POM298046  Collinsia franciscana A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC240921  Collinsia multicolor Alice Eastwood 1918-5-4 6883 San Mateo San Bruno hills, San Francisco Comment
  CAS-BOT-BC240924  Collinsia multicolor A. A. Heller 1907-5-28 8580 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC240927  Collinsia multicolor Robert F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  CAS-BOT-BC240931  Collinsia multicolor C. F. B. 1902-4-6 647 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240934  Collinsia multicolor Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  UC138812  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC729639  Collomia heterophylla Carl B. Wolf 1929-5-25 3725 San Mateo 1/2 mi n La Honda Grade (on road to Woodside) 121 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
  JROH215  Conium maculatum John Hunter Thomas 1981-5-5 20541 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH220  Conium maculatum John Hunter Thomas 1988-6-2 24505 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge Comment
  CAS-BOT-BC344849  Conyza Peter Rubtzoff 1987-11-27 9887 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon parkway west of Radio Road junction. Western upper edge of East Fork Colusa Creek Canyon. Comment
  CAS-BOT-BC286207  Conyza canadensis J. H. Thomas 1958-8-1 7374 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC286204  Conyza canadensis Peter Rubtzoff; Patricia Fallon 1987-8-26 9845 San Mateo San Bruno Mountains. Main part of Saddle area Comment
  CAS-BOT-BC288964  Conyza floribunda Peter Rubtzoff; Patricia Fallon 1987-8-26 9838 San Mateo San Bruno Mts: Saddle area on N side of Guadelupe Canyon. Parkway W of Radio Rd junction; NW part of the area along old Guadelupe Rd Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JROH4032  Cordylanthus pilosus subsp. pilosus Carol Zabel 1989-8-7 20 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12, near Mapache Gate Comment
  RSA107076  Cornus californica L. S. Rose 1956-5-7 56064 A San Mateo 3 mi. e. of Half Moon Bay. 30 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
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210352  Cornus sericea J. I. McMurphy 1906-5-11 22 San Mateo Santa Cruz Peninsula. Los Trancos Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC190044  Cortaderia jubata J. H. Thomas 1958-9-15 7472 San Mateo 0.4 mile north of dam on San Mateo Creek along Skyline Boulevard. 91 Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  CAS-BOT-BC453504  Cotoneaster lacteus Elizabeth McClintock 1978-7-1 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  RSA210917  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. E of Palo Alto. Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH663  Cotula coronopifolia John Hunter Thomas 1982-11-6 21198 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake delta Comment
  UC1119278  Cotula coronopifolia H. S. Yates 1935-5-8 5223 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  UCR141420  Cotula coronopifolia June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC291416  Cotula coronopifolia Gwendolan Newell 1914-7-8 s.n. San Mateo Pacific Grove Comment
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Oct 27 2021
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC291476  Cotula coronopifolia Elsie Zeile 1911-3-30 s.n. San Mateo S. San Francisco Comment
  POM312498  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-26 1591 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  UC1776756  Cotula mexicana D. Pendleton 2002-3-21 PDR 65823 San Mateo Sharp Park Golf Course, Pacifica Comment
  JEPS49999  Crassula aquatica J. B. Davy c. 1919 5 e San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC427829  Crassula connata John H. Thomas 1958-3-19 7053 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  JROH1893  Crassula connata John Hunter Thomas 1991-4-11 24983 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat launching area Comment
  CAS-BOT-BC427841  Crassula connata George Oberlander 1950-4-16 703 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  JROH5867  Crassula connata Ruth Porter 1981-3-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In Fire Rd F before Area C serpentine Comment
  SEINET12216216  Crassula connata E. McClintock, Knight, W.; Knight, I. 1982-1 4631 San Mateo from windy Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC148428  Crataegus monogyna Elizabeth McClintock; Paul Reeberg 1989-4-23 s.n. San Mateo Trailhead parking lot - San Bruno Mountains Comment
  CAS-BOT-BC257358  Crepis capillaris Peter Rubtzoff 1988-6-9 9926 San Mateo San Bruno Mountains, near parking lot on east side of saddle area. Comment
  CDA4433  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2002-5-15 s.n. San Mateo Along I-280 W of Woodside. 0 Comment
  JROH1960  Croton setiger John Hunter Thomas 1983-7-20 22895 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389709  Cryptantha intermedia L. Sigal 1969-6-1 s.n. San Mateo Belmont Comment
  JROH1367  Cryptantha micromeres John Rawlings 2009-5-7 1066 San Mateo Jasper Ridge Biological Preserve, Stanford University. North edge of Trail 11. 136 Comment
  JROH1373  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1383  Cryptantha microstachys John Rawlings 2012-5-25 1107 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  JROH5740  Cryptantha microstachys John Rawlings 2014-5-10 16601660 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Tr. 9 alternate 127 Comment
  JROH6202  Cryptantha torreyana var. pumila John Rawlings 2014-5-6 1231 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  SEINET3863390 Image available Cupressus macrocarpa K. Allred 1975-1-3 1270 San Mateo Half Moon Bay along Hwy 101 near Dune Beach.; 0 Comment
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Oct 30 2021
  RSA140852  Cupressus macrocarpa John H. Thomas 1960-8-28 8832 San Mateo Near Skyline Blvd. and Summit Dr. to the west of Hillsborough. Comment
  UCR143006  Cuscuta salina Edith A. Purer 1933-8-13 5408 San Mateo San Francisco Bay Region, near Baden Station 12 Comment
  CAS-BOT-BC287330  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
  RSA141086  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  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
  CAS-BOT-BC114452  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo Near Lake San Andreas Comment
  JROH4403  Cyperus erythrorhizos Toni Corelli 2003-10-29 265 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry lake bed 104 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
  JROH21  Cystopteris fragilis Lawrence J. Winship 1974-11-16 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA131973  Cytisus monspessulanus John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA78584  Cytisus scoparius P. A. Munz 1953-2-1 18273 San Mateo North of Scott Valley. Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5030  Dactylis glomerata John Hunter Thomas 1988-5-25 24491 San Mateo Jasper Ridge Biological Preserve, Stanford University. SLAC corridor. Comment
  CAS-BOT-BC192230  Danthonia californica A. G. Vestal 1924-5-20 s.n. San Mateo Sandhill Road (west of Menlo Park) Comment
  JROH5039  Danthonia californica John H. Thomas 1970-4-28 15606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790274  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mtn: ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  UCD164680  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  UCD60456  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo Sharp Park, suburb of Pacifica Mori's Point Road, west of State Hwy. 1. Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  RSA176777  Daucus pusillus John H. Thomas 1963-5-20 10137 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD30841  Deinandra corymbosa Edith A. Purer 1932-7-18 4025 San Mateo Near Pigeon Point. Comment
  UC127291  Deinandra corymbosa Katharine Brandegee 1908-3-8 San Mateo San Pedro Pt. Comment
  UC897706  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  SEINET7838962 Image available Deinandra corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299204  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1906-11-17 2 San Mateo Portola Comment
  CAS-BOT-BC299207  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1893-5-17 s.n. San Mateo Near Milbrae Comment
  CAS-BOT-BC292118  Delairea odorata John H. Thomas 1967-2-9 12404 San Mateo Montara. Near 3rd St. and Farallones Ave. Comment
  CAS-BOT-BC9244  Delphinium decorum Walter Knight; Irja Knight 1965-4-4 1004 San Mateo Bitter Cherry Ravine near bottom of Colma Canyon Comment
  UC9146  Delphinium decorum subsp. tracyi Geological Survey San Mateo San Bruno Comment
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Jun 4 2007
  JROH3446  Delphinium hesperium subsp. hesperium John Hunter Thomas 1977-6-16 18775 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116526  Delphinium patens subsp. patens C. B. Wolf 1929-4-26 3659 San Mateo Woodside Comment
  JROH3456  Delphinium patens subsp. patens John H. Thomas 1977-4-21 18540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  UC118683  Delphinium variegatum subsp. variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  JEPS23360  Delphinium variegatum subsp. variegatum W. L. Jepson 1914-3-22 5734 San Mateo Redwood Farm Redwood City (home of Mr. and Mrs. J. W. Goodwin) 30 Comment
  SJSU15936  Deschampsia cespitosa subsp. cespitosa John Rawlings, Ken Hickman 2016-5-26 1807 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
  UCD63756  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1921-6-3 San Mateo Millbrae Ranch. Comment
  JROH5048  Deschampsia danthonioides John H. Thomas 1975-5-26 17917 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5052  Deschampsia danthonioides John Hunter Thomas 1986-4-30 23983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5075  Deschampsia elongata W. Lennihan 1990-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache Trail (12) before swale, just before going uphill onto Trail 10, right and left of path. Comment
  CAS-BOT-BC902  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 San Mateo Halfway to summit of Mt. Diablo Comment
  CAS-BOT-BC906  Dicentra chrysantha Alice Eastwood 1915-5-30 4519 San Mateo Mt. Diablo Comment
  CAS-BOT-BC709  Dicentra formosa Charles Piper Smith 1922-4-29 3502 San Mateo Montara Mountain 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-BC500926  Dichelostemma capitatum Rimo Bacigalupi 1922-5-25 s.n. San Mateo Redwood Highlands Comment
  UCD139212  Dichelostemma capitatum subsp. capitatum R. E. Dengler 1960-4-10 6 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 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
  CAS-BOT-BC150456  Diplacus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo King's Mt., Santa Cruz Mts. Comment
  SEINET13682892  Diplacus aurantiacus E. Crawford 1982-9-25 s.n. San Mateo On San Gregario Road, ca 2 miles W of Redwood Terrace. 73 Comment
  CAS-BOT-BC150466  Diplacus aurantiacus L. R. Abrams 1915-6-23 5257 San Mateo Saratoga Big Basin Road Comment
  CAS-BOT-BC151993  Diplacus douglasii Roxana S. Ferris 1918-3-31 758 San Mateo Bare hill above Helveto Lake- Mud Lakes, Coal Mine Ridge - Santa Cruz Mountain Peninsula Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC121860  Dirca occidentalis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Ihsan A. Al-Shehbaz 1969-9-22 2792 San Mateo 0.9 miles from Pilarcitos Dam en route to Montara Mountain. On San Francisco Water Dept. Property. 274 Comment
  POM169492  Disporum hookeri var. hookeri C. F. Baker 1902-4-6 650 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC195715  Distichlis spicata Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo PG&E Marsh 30 Comment
  JEPS30787  Dodecatheon clevelandii subsp. patulum G. Thomas Robbins 1937-4-11 89 San Mateo above San Mateo (on road to Woodside); above San Mateo Comment
  JROH3383  Dodecatheon hendersonii John H. Thomas 1967-3-26 12416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  JROH1518  Draba verna John Hunter Thomas 1991-4-6 24975 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of dam Comment
  JROH1512  Draba verna John Hunter Thomas 1985-4-10 23517 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam near bridge over San Francisquito Creek Comment
  CAS-BOT-BC159536  Drymocallis glandulosa var. glandulosa W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach at Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC159550  Drymocallis glandulosa var. glandulosa Alice Eastwood 1912-6-10 327 San Mateo Crystal Springs Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  JROH3738  Drymocallis glandulosa var. wrangelliana John Hunter Thomas 1985-5-7 23643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3740  Drymocallis glandulosa var. wrangelliana John Hunter Thomas 1986-5-6 24019 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC481507  Drymocallis glandulosa var. wrangelliana H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67881  Dryopteris arguta G. Isenberg 1971-12-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC67887  Dryopteris arguta Margaret A. Barry 1938-5-29 s.n. San Mateo Coal Mine Ridge Comment
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063780  Dryopteris arguta T. Tyrrell 1928-9-26 6 San Mateo 2 mi s San Gregorio (Plot 13); Santa Cruz Quadrangle 91 Comment
  CAS-BOT-BC67890  Dryopteris arguta W. R. Dudley 1905-6-19 s.n. San Mateo Santa Cruz Peninsula, Santa Cruz Mountains - by road near top of New Grade road to Black Mt. Comment
  RSA693756  Dryopteris arguta Anonymous 1924-7-4 s.n. San Mateo Near St. Helena, Woods beyond WHite Sulphur Springs Comment
  UCSB17937  Dryopteris arguta Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 137 Comment
  UCSC008147  Dudleya Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC410867  Dudleya caespitosa Phipps 1922-7-1 s.n. San Mateo Tunitas Creek 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-BC410870  Dudleya caespitosa George Oberlander 1950-6-3 1036 San Mateo San Andreas Valley Comment
  CAS-BOT-BC208922  Echinochloa crus-galli George Oberlander 1949-9-25 393 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  JROH5084  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5085  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5603  Echinochloa crus-galli John Rawlings 2013-9-12 1207 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta. 105 Comment
  UC1100725  Eleocharis macrostachya Herbert L. Mason, Verne Grant 1946-8-28 13087 San Mateo S of San Francisco (Santa Cruz--Daly City Road # 5) Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  JROH5110  Elymus glaucus subsp. glaucus John Hunter Thomas 1988-5-16 24467 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC235211  Elymus multisetus George Oberlander 1950-7-15 1015 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  JROH5121  Elymus multisetus John H. Thomas 1973-6-10 16824 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164330  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC204302  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  RSA184928  Epilobium brachycarpum L. S. Rose 1966-8-6 66077 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  CAS-BOT-BC166140  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. & Half Moon Bay Rd, Cahill Ridge 243 Comment
  CAS-BOT-BC166616  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Guadalupe Valley Comment
  UC942859  Epilobium canum subsp. canum Lewis S. Rose 1949-9-11 49178 San Mateo Skyline Blvd. 2 mi w Crystal Springs Lake Comment
  UCR123145  Epilobium ciliatum subsp. glandulosum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6796 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  POM32532  Epilobium ciliatum subsp. watsonii A. D. E. Elmer 1903-07 4962 San Mateo Crystal Springs Lake Comment
  SD38385  Epilobium ciliatum subsp. watsonii Edith A. Purer 1933-7-27 5340 San Mateo High stabilized sand dunes, Pigeon Point. Comment
  SJSU10677  Epilobium ciliatum subsp. watsonii H. L. Elliot 1958-5-31 118 San Mateo Hwy 1, 12 mi S of Halfmoon Bay Comment
  CAS-BOT-BC57086  Equisetum X ferrissii E. Cannon 1898-5-24 s.n. San Mateo Colma Comment
  UCD164092  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH64  Equisetum hyemale subsp. affine Toni Corelli 2005-10-12 307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, north side of Leonard's bridge. 106 Comment
  RSA430449  Equisetum hyemale var. affine Lyman Benson 1930-5-26 2128 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SEINET11613894  Equisetum telmateia subsp. braunii Unknown 1932-1 8935 San Mateo La Honda Road to Sky Line Drive Comment
  JROH5143  Eragrostis pectinacea var. pectinacea W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC299884  Erechtites glomeratus Fred Hemphill 1973-5-14 804 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  POM356837  Erechtites glomeratus E. A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  CAS-BOT-BC291242  Erechtites minimus J. H. Thomas 1955-12-6 5515 San Mateo Growing on the upstream face of Pilarcitos Lake Dam Comment
  JEPS19177  Ericameria ericoides Dr. L. M. Newlon 1921-1-1 242 San Mateo Sea shore from Salada to Mussel Comment
  SD40104  Ericameria ericoides subsp. ericoides Edith A. Purer 1933-8-25 5511 San Mateo Skyline Drive Comment
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  JROH644  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH645  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD131896  Erigeron floribundus John Thomas Howell 1975-9-25 51508 San Mateo San Bruno Mountain. 396 Comment
  CAS-BOT-BC300610  Erigeron foliosus var. franciscensis C. F. Leitholt 1893-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Searsville Comment
  CAS-BOT-BC295083  Erigeron glaucus Robert Robertson 1954-5-1 123 San Mateo Pebble Beach 12 Comment
  JEPS41479  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo near Pescadero; Pebble Beach 3 Comment
  POM289038  Erigeron glaucus Lyman Benson 1930-6-14 2152 San Mateo San Gregorio. 30 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-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook 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-BC216134  Eriodictyon californicum Alice Eastwood 1912-6-10 836 San Mateo Crystal Springs Comment
  HSC13523  Eriodictyon californicum J. Wendell Howe 1930-5-21 San Mateo Alpine Creek Comment
  UC24063  Eriodictyon californicum J. Burtt Davy 1893-6-17 720 San Mateo Belmont Comment
  CAS-BOT-BC253242  Eriogonum fasciculatum var. foliolosum Claire Etienne 1973-5-1 s.n. San Mateo Ca. 1 mi. north of Jtn. with Hwy. 84 (to Woodside) on Hwy. 280 Comment
  JEPS127890  Eriogonum fasciculatum var. foliolosum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 309 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 Comment
  POM193637B  Eriogonum gracile L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC251976  Eriogonum latifolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC251996  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1442465  Eriogonum latifolium James L. Reveal 1968-8-6 San Mateo San Gregorio Beach Comment
  UC1537276  Eriogonum latifolium Gordon H. True Jr. 1936-6-14 505 San Mateo canyon s Salada Beach 457 Comment
  CAS-BOT-BC251969  Eriogonum latifolium Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CAS-BOT-BC251986  Eriogonum latifolium C. F. Leitholt 1894-7-29 s.n. San Mateo Pescadero Comment
  SEINET11938065  Eriogonum latifolium E. H. Graham 1931-1 6932 San Mateo Ano Nuevo Point, S of San Francisco Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC264775  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  CAS-BOT-BC264781  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC266073  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  POM165227  Eriogonum luteolum C. F. Baker 1902-9-10 1674 San Mateo Crystal Springs Lake Comment
  JROH3236  Eriogonum luteolum var. luteolum John Hunter Thomas 1988-8-21 24564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS83064  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 449 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  CAS-BOT-BC268995  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC269000  Eriogonum nudum var. auriculatum Javier Penalosa 1963-3-30 2717 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. 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
  CAS-BOT-BC261390  Eriogonum nudum var. indictum Chester Dudley No date on label 15 San Mateo West slope San Carlos Mts. Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH698  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1969-5-28 15076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH699  Eriophyllum confertiflorum var. confertiflorum D. E. Breedlove 1971-5-31 19353 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  CAS-BOT-BC301264  Eriophyllum lanatum var. arachnoideum A. D. E. Elmer 1903-6-1 4397 San Mateo San Mateo Comment
  CAS-BOT-BC301267  Eriophyllum lanatum var. arachnoideum George Oberlander 1950-7-15 1019 San Mateo San Francisco Watershed Reserve Comment
  JROH725  Eriophyllum lanatum var. arachnoideum W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 from little serpentine hill toward San Francisquito Creek, on left before sharp turn going down to creek Comment
  RSA116759  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-7-17 s.n. San Mateo By Bear Gulch Road Comment
  RSA463088  Eriophyllum lanatum var. arachnoideum Lyman Benson 1937-8-7 8486 San Mateo La Honda Road, Santa Cruz Mt. Range, San Francisco Bay Watershed 244 Comment
  RSA116767  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo W Union Gulch, back of Winery; Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC124130  Eriophyllum latilobum Amos Arthur Heller 1907-5-28 8584 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CHSC334  Eriophyllum staechadifolium J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CHSC335  Eriophyllum staechadifolium H. Holder 1949-5-15 San Mateo Near San Francisco bay. 9 Comment
  CAS-BOT-BC301965  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  CAS-BOT-BC301970  Eriophyllum staechadifolium John H. Thomas 1975-1-12 17672 San Mateo Thornton Beach State Park in NW part of county Comment
  RSA302653  Eriophyllum staechadifolium Jim Shevock 1970-11-25 551 San Mateo Along Hwy 1 9 Comment
  CDA5406  Eriophyllum staechadifolium var. artemisiifolium Wm. Davis 1958-6-6 San Mateo Pedro Valley, Sharp Park. 0 Comment
  CHSC56969  Eriophyllum staechadifolium var. staechadifolium Steven Triano 1988-5-24 189 San Mateo Ca 100 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  JROH2590  Erodium botrys John H. Thomas 1967-5-10 12838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2599  Erodium botrys John H. Thomas 1974-4-4 17085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12182126  Erodium botrys G. A. McCallum 1933-1 s.n. San Mateo near Woodside Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC874914  Eryngium armatum Alice Eastwood and John Thomas Howell 1938-6-26 6065 San Mateo Arroyo de los Frijoles Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12005811  Erysimum asperum M. T. Doutt 1931-1 240 San Mateo S of San Francisco Comment
  CAS-BOT-BC54824  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4480 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54875  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  RSA101842B  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -b San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102123  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper N slope of San Bruno Mountain, N of radio tower 335 Comment
  RSA51239  Erysimum franciscanum P. H. Raven 1950-4-16 1781 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  SJSU8507  Erysimum franciscanum P. F. Canziani 1979-3-2 San Mateo SW of intersection of Hillside Blvd & Chestnut Ave., San Bruno Mt Comment
  UC1034698  Erysimum franciscanum G. B. Rossbach 1955-3-12 567 San Mateo lower w slope of ridge above E shore Crystal Spring Lake; Pulgas Ridge Comment
  UC1034707  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo open rocky summit near radio tower (crest of mt); San Bruno Mountain 400 Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
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Nov 23 2007
  UC1034936  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 913 San Mateo dunes just back of high sea-cliff 1 1/2 mi n Sharp Park (Salada Beach) Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  SD234189  Erythranthe guttata Virginia Pinkus Ryder 1964-2-21 78 San Mateo Near Davenport. 3 Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  CAS-BOT-BC403543  Eschscholzia californica H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3094  Eschscholzia californica John H. Thomas 1967-6-1 12963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3095  Eschscholzia californica John H. Thomas 1967-6-1 12963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC202735  Euonymus occidentalis A. D. E. Elmer 1903-5-1 4317 San Mateo Butano Creek Comment
  JROH1797  Euonymus occidentalis var. occidentalis E. I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  UCSC000450  Euphorbia crenulata H. S. Yates 1935-5-8 5211 San Mateo 1.5 mi. S. Mindego Hill Santa Cruz 335 Comment
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  SJSU6623  Felicia amelloides T. M. Morton 1972-4-1 San Mateo residence 735 Laurelwood Dr, San Mateo Comment
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5171  Festuca arundinacea Toni Corelli 2001-5-5 245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near concrete pad above CO2 area in disturbed grassland and planting of Pinus radiata 112 Comment
  SJSU15416  Festuca arundinacea Toni Corelli 2010-5-21 672 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 5 Comment
  JROH5473  Festuca bromoides John Hunter Thomas 1983-4-20 21536 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JROH5727  Festuca bromoides John Rawlings 2015-3-8 1307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 though chaparral. 134 Comment
  JROH5176  Festuca californica John H. Thomas 1967-5-12 12866 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM296651  Festuca californica var. californica Lyman Benson 1930-5-3 2100 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM87695  Festuca californica var. californica Le Roy Abrams 1902-5-11 2461 San Mateo Crystal Springs. Comment
  CAS-BOT-BC278474  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC278475  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC278477  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  UCD163541  Festuca idahoensis Peter Rubtzoff 1980-5-3 9436 San Mateo San Bruno Mountains. The Edward Preston Lee Memorial Site and vicinity. Comment
  JROH5483  Festuca microstachys S. J. McNaughton 1966-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grasslands of Ehrlich's Area H. 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
  JROH5506  Festuca octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS101936  Festuca rubra Dean W. Taylor 1988-4-8 9508 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest- right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain: 237 Comment
  JROH5181  Festuca rubra John Rawlings 2009-5-20 1043 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing 5 yards from the paved lakeside road under the canopy of a valley oak (water spigot near tree trunk) 106 Comment
  RSA191944  Filago gallica R. F. Thorne, P. Everett 1963-6-9 32227 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH247  Foeniculum vulgare Toni Corelli 2005-8-1 297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road C, southwest of low flow crossing 82 Comment
  SJSU2271  Fragaria chiloensis C. W. Sharsmith 1947-4-11 6752 San Mateo Pescadero Beach near Pescadero Point Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437032  Fragaria chiloensis W. R. Dudley 1900-3-18 s.n. San Mateo San Pedro Valley near beach, Santa Cruz Peninsula Comment
  JROH3664  Fragaria vesca John H. Thomas 1976-10-16 18427 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3665  Fragaria vesca W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC457529  Fragaria vesca subsp. californica E. W. Rust 1987-4-27 129 San Mateo Kings Mountain. Comment
  CAS-BOT-BC52684  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-BC52685  Frangula californica subsp. californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SEINET6671073 Image available Frankenia grandifolia Malcolm A. Nobs, S. Galen Smith 1949-1 1599 San Mateo Mouth of Pescadero Creek Comment
  UC1191594  Frankenia salina Malcolm A. Nobs and S. Galen Smith 1949-8-26 1599 San Mateo marshes at mouth Pescadero Creek Comment
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Oct 31 2021
  UC136741  Frankenia salina Dr. E. B. Copeland 1903-6-18 3313 San Mateo Half Moon Bay Half Moon Bay (on sea coast on edge of cliff) Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  UC143428  Fritillaria affinis C. F. Baker Mar 1903 5047 San Mateo Crystal Springs Lake Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  JROH4683  Fritillaria affinis John H. Thomas 1969-4-12 14893 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below dam Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  POM273485  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University 122 Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  RSA0000351  Fritillaria grayana Inez Smith 1914-3-12 s.n. San Mateo Hillsboro. 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-BC130384  Fritillaria liliacea Marion Gallagher 1978-3-3 s.n. San Mateo At Farm Hill School Site, above Redwood City and opposite [Canada] Canada College, just off 280 at Farm Hill off ramp Comment
  SD39121  Fritillaria liliacea Marie Cummings 1933-4-11 7 San Mateo Spring Valley Lake. Comment
  UC1371057  Fritillaria liliacea Theodore F. Niehaus 1969-3-15 839 San Mateo 0.2 mi w of Polehouse Road (w side of Tower Road) Comment
  RSA0037218  Fumaria Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  UCD78148  Fumaria capreolata Robert E. Preston 2008-4-1 2600 San Mateo Lower Crystal Springs Reservoir, at jct Hwy 92 and Hwy 35 92 Comment
  CAS-BOT-BC422449  Fumaria capreolata Philip Morgan 1985-5-1 s.n. San Mateo Growing at the base of Montara Mountain. Comment
  CAS-BOT-BC389682  Galium Mary Wicksten 1968-6-20 s.n. San Mateo Mr. [Mt.] Ellen trail - Memorial Park Comment
  RSA101002  Galium aparine G. Oberlander 1949-4-30 113 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  UCR121582  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4982 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA130695  Galium californicum subsp. californicum W. R. Dudley 1906-10-3 s.n. San Mateo Opposite side of Pescadero Creek from [Gruerson's?] old house. Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3797  Galium murale John H. Thomas 1975-4-19 17790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5704  Galium parisiense John Rawlings 2015-4-7 1456 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  RSA100976  Galium porrigens G. Oberlander 1949-7-30 292 San Mateo Cahill Ridge. San Francisco Watershed Reserve. Comment
  JROH3817  Galium porrigens var. porrigens John Hunter Thomas 1986-5-17 24046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  JROH802  Gamochaeta ustulata John Hunter Thomas 1987-5-5 24254 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  UCR240616  Gamochaeta ustulata T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3516 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC303464  Gamochaeta ustulata Elizabeth McClintock 1963-6-9 s.n. San Mateo Exposed slopes below top of mountain, San Bruno Mt Comment
  CAS-BOT-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  RSA502345  Gamochaeta ustulata D. W. Taylor 1988-4-8 9506 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. 238 Comment
  CAS-BOT-BC194564  Garrya elliptica Margaret A. Barry 1938-1-23 222 San Mateo Northeast side of Coal Mine Ridge Comment
  CAS-BOT-BC194567  Garrya elliptica W. R. Dudley 1895-2-10 s.n. San Mateo San Mateo Ravine by Road above Pt. of Rocks Comment
  CAS-BOT-BC194570  Garrya elliptica George Oberlander 1949-4-2 47 San Mateo Northern Cahill Ridge, San Francisco Watershed Reserve Comment
  RSA181585  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge. Comment
  CAS-BOT-BC278662  Gastridium phleoides Fred Hemphill 1973-5-14 812 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH5196  Gastridium phleoides W. Lennihan 1989-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 - middle of the path. Comment
  UCD66567  Gastridium phleoides A. A. Beetle 1942-6-11 3599 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  CDA19877  Gastridium phleoides L. Kuwahara 2002-5-17 PDR P 120137 San Mateo San Francisco Bay Area; Growing from rock used to resurface roads on watershed property. 0 Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CHSC56539  Genista monspessulana Steven Triano 1988-5-24 177 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  SFV8455  Genista monspessulana M. L. Linvill 1972-5-16 9 San Mateo Woodside. Mountain Home Road, 0.2 miles from Mountain Wood Lane. Comment
  JROH2613  Geranium dissectum John H. Thomas 1973-3-12 16486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0028484  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UCSC007748  Geranium dissectum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  HSC23939  Geranium retrorsum Mary Katherine Wicksten 1971-7-22 187 San Mateo Huddart Park, near park entrance Comment
  UC106853  Gilia achilleifolia subsp. achilleifolia C. F. Baker 1902-4-6 467 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  JROH3160  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1992-4-23 25148 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC303682  Glebionis coronaria Dean Wm. Taylor 1988-4-8 9516 San Mateo Santa Cruz Mts. San Bruno Mt, N slope of SE ridge of the mountain, near the ridgecrest. Right-of-way of E-most set of PG&E high-voltage powerlines crossing the mt 237 Comment
  JROH2023  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA17890  Gnaphalium chilense C. B. Wolf 1927-6-15 s.n. San Mateo Skyline Boulevard, S of San Francisco Comment
  CAS-BOT-BC307438  Gnaphalium palustre R. S. Ferris 1917-10-19 726 San Mateo Crystal Springs Lake near dam Comment
  SEINET11849566  Gnaphalium ramosissimum E. A. Purer 1933-1 5420 San Mateo near Belmont Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304529  Grindelia hirsutula Saichi Kawahara 1969-6-15 426 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC304541  Grindelia hirsutula L. R. Abrams 1918-4-30 7064 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC304545  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304551  Grindelia hirsutula Margaret A. Barry 1937-6-22 161 San Mateo Slope on Coal Mine Ridge Comment
  CAS-BOT-BC304554  Grindelia hirsutula A. D. E. Elmer 1903-6-1 4267 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304555  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304564  Grindelia hirsutula H. L. Mason 1921-7-3 s.n. San Mateo Pescadero - La Honda Road Comment
  CAS-BOT-BC304567  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  JEPS121472  Grindelia hirsutula Adam C. Schneider with Alison Colwell 2013-6-23 291 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM359076  Grindelia hirsutula L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  SEINET3146830  Grindelia hirsutula L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  UC520408  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-8 3685 San Mateo exposed slope near sea Ft. Winfield Scott 35 Comment
  SEINET191590  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SJSU15765  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 a San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  CHSC345  Grindelia stricta var. platyphylla B. Richardson 1929-5-11 San Mateo Moss Beach. 4 Comment
  POM209880  Grindelia stricta var. platyphylla D. D. Keck 1934-7-7 2943 San Mateo Pigeon Point. Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JROH5203  Hainardia cylindrica John Rawlings 2012-5-23 1117 San Mateo Jasper Ridge Biological Preserve, Stanford University; at back of field station at edge of brick patio 121 Comment
  SJSU16022  Hainardia cylindrica John Rawlings, Toni Corelli 2016-5-13 1793 San Mateo Fairway Dr. access path to Mori Point. USGS Montara Mountain 7.5 Minute (1:24,000 Scale) 34 Comment
  JROH441  Hedera helix Ann Lambrecht 2008-2-6 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail 2 above San Francisquito Creek Comment
  CAS-BOT-BC158035  Hedera helix Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo Radion Road near KRON station Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  UC407001  Helenium puberulum Josephine D. Randall 1907-7-24 San Mateo near Crystal Springs Lake Comment
  CAS-BOT-BC344859  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  JROH861  Helianthella californica var. californica John Hunter Thomas 1989-5-9 24722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305926  Helminthotheca echioides John H. Thomas 1955-11-9 5505 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean Comment
  JROH1169  Helminthotheca echioides John H. Thomas 1974-10-26 17629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA81601  Hemizonia congesta James I. McMurphy 1909-6-13 s.n. San Mateo Summit, between Colma and San Bruno. Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  LA27292  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1941-10-24 41470 San Mateo Belmont 6 Comment
  POM51989  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  UC32738  Hemizonia congesta subsp. luzulifolia J. Burtt Davy 1893-6-17 784 San Mateo Belmont Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  CAS-BOT-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  SEINET7883351 Image available Hemizonia corymbosa L. S. Rose 1941-1 41361 San Mateo Moss Beach 16 Comment
  POM53161  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-5-1 686 San Mateo Crystal Springs Lake. Comment
  RSA94180  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills 2 miles W of Belmont Comment
  POM360311  Hemizonia luzulifolia L. S. Rose 1964-9-5 64070 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  RSA212183  Hemizonia luzulifolia subsp. rudis L. S. Rose 1970-7-26 70078 San Mateo Hillsborough, Black Mountain, Skyline Blvd. 122 Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA18317  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  JROH2922  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2928  Hesperolinon micranthum John H. Thomas 1969-6-4 15107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148462  Heteromeles arbutifolia Ned Cahill 1974-4-19 145 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. 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
  UC942934  Heteromeles arbutifolia Lewis S. Rose 1948-11-25 48241 San Mateo Woodside 365 Comment
  CAS-BOT-BC310766  Heterotheca sessiliflora subsp. echioides Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC420891  Heuchera micrantha var. diversifolia Peter Rubtzoff 1953-5-14 1342 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC420895  Heuchera micrantha var. diversifolia A. D. E. Elmer 1903-7-1 4762 San Mateo Pilarcitos Stone Dam Comment
  UC729863  Heuchera micrantha var. diversifolia Carl B. Wolf 1929-6-8 3747 San Mateo along head of San Francisquito Creek; Searsville Lake 91 Comment
Read comments
Jul 14 2009
  UC912633  Hierochloe occidentalis Herbert L. Mason 1927-4-23 3669 San Mateo La Honda Comment
  JROH1533  Hirschfeldia incana John Hunter Thomas 1977-6-16 18794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  RSA17940  Holcus lanatus C. B. Wolf 1927-6-13 s.n. San Mateo La Honda Grade. Comment
  CAS-BOT-BC228580  Holodiscus discolor Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1938 San Mateo San Bruno State Park, Summit Loop Trail just above the Eucalyptus grove N of the road from the parking area, NE-facing slope 238 Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd Comment
  POM222903  Holodiscus discolor S. S. Berry 1909-05 s.n. San Mateo Los Trancos Creek. 46 Comment
  RSA101035  Holodiscus discolor G. Oberlander 1949-5-21 183 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC284679  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1463 San Mateo Belmont Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  JROH5231  Hordeum brachyantherum subsp. californicum W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Left of fire road F going north, across from experimental tall poles. Comment
  POM295720  Hordeum depressum Lyman Benson 1930-5-12 2125 San Mateo Stanford University. 152 Comment
  CAS-BOT-BC289394  Hordeum murinum subsp. glaucum George Oberlander 1950-4-22 798 San Mateo South boundary, San Francisco Watershed Reserve 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
  RSA138203  Hordeum murinum subsp. glaucum Paul R. Hichborn 1920-5-18 236 San Mateo Woodside; Santa Cruz Mountain Peninsula Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-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-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  SD39947  Horkelia californica Edith A. Purer 1933-7-27 5341 San Mateo High stabilized sand dunes, Pigeon Point Comment
  CAS-BOT-BC536144  Horkelia californica Helen D. Geis 1901-10-25 s.n. San Mateo Spanishtown [Half Moon Bay] near cemetery Comment
  CAS-BOT-BC536145  Horkelia californica J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio 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
  CAS-BOT-BC536151  Horkelia californica Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  UCR253352  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo San Francisco Bay, South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport 4 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
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  JEPS100821  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
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Oct 31 2021
  UCD160243  Hypericum canariense Christopher Dillis 2015-5-15 6 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH938  Hypochaeris radicata John Hunter Thomas 1986-5-6 24011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH939  Hypochaeris radicata John Hunter Thomas 1988-5-3 24441 San Mateo Jasper Ridge Biological Preserve, Stanford University; near causeway Comment
  JROH942  Hypochaeris radicata John Hunter Thomas 1991-6-9 25067 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Main Gate off Sand Hill Road Comment
  POM55230  Hypochaeris radicata A. D. E. Elmer 1903-04 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  SEINET10560664  Hystrix californica Adolph D. E. Elmer Elmer 4700 San Mateo Crystal Springs Lake. Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  POM250983  Iris douglasiana Lyman Benson 1935-4-27 6417 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  RSA3090  Iris douglasiana Carl B. Wolf 1931-8-21 2332 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mountains 244 Comment
  CAS-BOT-BC133660  Iris longipetala L. R. A. 1902-4-13 2337 San Mateo Lake San Andreas Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  UC1057443  Iris longipetala G. Thomas Robbins 1937-4-11 82 San Mateo slopes above Spring Valley Lake (s of San Francisco) Comment
  JROH4431  Iris pseudacorus John R. Barth 1963-4-13 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 103 Comment
  UC184381  Isocoma menziesii var. vernonioides Harriet A. Walker 1915-9-19 3833 San Mateo near Uncle Tom's Cabin; road to Burlingame Comment
  CAS-BOT-BC57733  Isoetes howellii L. R. Abrams 1923-4-19 10108 San Mateo Alameda de los Pulgas back of Menlo Park Comment
  JEPS63782  Isolepis cernua William S. Cooper 1919-7-22 204 San Mateo Ano Nuevo Pt Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  RSA40141  Isolepis cernua L. S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 miles S of San Francisco County line. Comment
  SEINET5716637 Image available Isolepis cernua Shirley C. Tucker 1954-1 3796 San Mateo On sea cliffs, 17 mi. S of San Francisco.; Moss Beach Comment
  SBBG28003  Jaumea carnosa L. S. Rose 1935-8-13 San Mateo Salada Comment
  SJSU4270  Jaumea carnosa D. R. Conradson 1968-10-9 San Mateo by Palo Alto Yacht Harbor Comment
  SEINET3559014 Image available Juncus bufonius Lewis S. Rose 1932-6-26 s.n. San Mateo Pilarcitos Lake. Comment
  UCR121569  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 4997 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH5851  Juncus bufonius var. bufonius John Rawlings 2016-5-19 1759 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 about 115 meters from wooden trail marker near Preserve boundary fence east of Escobar Gate. 104 Comment
  SJSU16033  Juncus capitatus Toni Corelli, John Rawlings 2016-4-29 1773 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  RSA18441  Juncus effusus subsp. pacificus Carl B. Wolf 1927-6-29 567 San Mateo 3 miles south of San Gregorio. Comment
  SEINET3879467  Juncus ensifolius K. Thorne, J. Chandler 1986-7-25 4934 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach.; 0 Comment
  UCD141619  Juncus nevadensis Frank W. Gould 1939-5-6 657 San Mateo on coast Highway 13 miles north of Santa Cruz County line. 15 Comment
  JEPS85550  Juncus patens Craig Dremann 1986-9-13 334 San Mateo Stage road between San Gregorio and Pompanio Creek Comment
  RSA132400  Juncus patens John H. Thomas 1959-7-8 8023 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  CAS-BOT-BC182761  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9230 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210121  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9232 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR244655  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  UCR280169  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  JROH4519  Juncus xiphioides John Hunter Thomas 1981-4-29 20513 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4038  Kickxia elatine Herbert Dengler 1961-9-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Creek bed -- about midway between tiger lily site and old Zoology Cabin site -- directly below nesting sites of Kingfisher and Rough-winged Swallow 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
  JROH4050  Kickxia spuria Carol Zabel 1989-8-26 31 San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside main gate on Sand Hill Road Comment
  JROH5264  Koeleria macrantha John H. Thomas unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  SJSU15768  Koeleria macrantha Toni Corelli 2010-4-16 615 San Mateo Pedro Point Headlands, Pacifica CA. Off of South Ridge Road Trail 180 Comment
Read comments
Sep 10 2021
  CAS-BOT-BC274288  Lachnagrostis filiformis Ida R. Hayward 1927-7-4 s.n. San Mateo Crystal Springs Lake Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH949  Lactuca serriola John H. Thomas 1964-11-29 10535 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville Dam Comment
  JROH953  Lactuca serriola John Hunter Thomas 1978-7-14 19264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville entrance Comment
  CAS-BOT-BC340703  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-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  CAS-BOT-BC339059  Lasthenia californica H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC339086  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339096  Lasthenia californica John H. Thomas 1964-4-30 10367 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CDA33782  Lasthenia californica D. G. Kelch 2011-3-13 11 .047 San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH971  Lasthenia californica subsp. californica John H. Thomas 1956-4-7 5613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517467  Lasthenia californica subsp. californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  JEPS9674  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  JEPS67909  Lasthenia glaberrima L. R. Heckard and J. H. Thomas 1972-4-16 2892 San Mateo ca 1.5 s Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada road (private)) 121 Comment
  UC311550  Lasthenia gracilis A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  POM361530  Lasthenia gracilis D. D. Keck 1932-3-24 1402 San Mateo Redwood City, at border of San Francisco Bay. Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  SEINET5630609 Image available Lathyrus Unknown 1907-1 8583 San Mateo Back of San Mateo, on the Half Moon Bay road Comment
  CHSC57080  Lathyrus littoralis Steven Triano 1988-5-24 207 San Mateo Coastal sand dunes w of Hwy. 1 ca 0.2 mi n of Pescadero Road. 9 Comment
  SEINET955880  Lathyrus littoralis Ira L. Wiggins 1946-1 11201 San Mateo Sand dunes just above extreme high tide level, Half Moon Bay about 3 miles N. of Town. Comment
  UCD35772  Lathyrus vestitus Beecher Crampton 1962-6-11 6494 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  POM87741  Lathyrus vestitus subsp. bolanderi L. R. Abrams 1902-4-13 2342 San Mateo Crystal Springs Lake. Comment
  POM16718  Lathyrus vestitus subsp. vestitus A. D. E. Elmer 1903-05 4745 San Mateo Kings Mountain. Comment
  JROH2041  Lathyrus vestitus var. vestitus John Hunter Thomas 1992-4-23 25157 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC323178  Layia chrysanthemoides Elizabeth McClintock; Paul Reeberg 1987-5-31 s.n. San Mateo San Bruno Mountains. Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame Comment
  CAS-BOT-BC321114  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  CAS-BOT-BC321115  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  CAS-BOT-BC327482  Layia hieracioides M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC327504  Layia hieracioides J. H. Thomas 1958-6-11 7223 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JEPS82095  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  RSA152270  Layia hieracioides John H. Thomas 1961-5-7 9307 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC327507  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  RSA21999  Layia hieracioides J. T. Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  CAS-BOT-BC382083  Layia platyglossa Arthur Spiegler 1969-6-20 884 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS18168  Layia platyglossa Rimo Bacigalupi with Dempster, Robbins and Galen Smith 1956-5-15 5646 San Mateo about center of Montara Mountain 487 Comment
  JEPS35780  Layia platyglossa V. F. Hesse 1964-5-26 3208 San Mateo Pigeon Point Comment
  CAS-BOT-BC382093  Layia platyglossa John H. Thomas 1971-5-2 15795 San Mateo Near interesection of Canada Road and Edgewater [Edgewood?] Road, about 3 miles westward from Redwood City 152 Comment
  CAS-BOT-BC382223  Layia platyglossa Vesta F. Hesse 1952-5-12 938 San Mateo Pigeon Point 15 Comment
  JROH5750  Layia platyglossa L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland, top of Jasper Ridge Comment
  POM88088  Layia platyglossa subsp. platyglossa L. R. Abrams 1902-5-11 2442 San Mateo Crystal Springs Lake. Comment
  POM185943  Lemna gibba A. D. E. Elmer 1903-07 4765 San Mateo San Pedro. Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC339115  Leontodon autumnalis R. E. Frenkel 1963-12-7 322 San Mateo San Francisco Water District, 1.5 miles north of Halfmoon [Half Moon] Bay Club Comment
  UCLA64405  Lepechinia calycina David D. Keck 1932-5-25 1779 San Mateo Hills two miles west fo Belmont Comment
  POM143624  Lepidium didymum Copeland 1903-6-5 3326 San Mateo Montara Point. Comment
  CAS-BOT-BC89138  Lepidium didymum Walter Knight; Irja Knight 1964-5-30 105 San Mateo San Bruno Mountains. Along freeway in Colma Canyon. Comment
  CAS-BOT-BC89139  Lepidium didymum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountains. Crocker Hills. Near Guadalupe Road. Comment
  UCD115359  Lepidium didymum J. D. Skoss 1948-7-25 53 San Mateo San Vicente Canyon near Montara. Comment
  CAS-BOT-BC12596  Lepidium nitidum Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. On North Power Line Ridge. Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  RSA128501  Leptosiphon ambiguus James I. McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lake Comment
  JROH3176  Leptosiphon androsaceus John Hunter Thomas 1986-5-17 24055 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  OBI43249  Leptosiphon androsaceus Delzie Demaree 1932-4-27 9020 San Mateo Dry fields above Spring Valley Lakes Comment
  CAS-BOT-BC226730  Leptosiphon latisectus W. R. Dudley 1900-4-4 s.n. San Mateo Hills west of San Bruno Station Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  POM65858  Leptosiphon liniflorus L. R. Abrams 1901-05 1562 San Mateo Woodside Comment
  RSA133950  Leptosiphon liniflorus John H. Thomas 1958-5-13 7166 San Mateo About 3 miles SW of San Mateo along Skyline Blvd., 0.3 mi. S of its intersection with Black Mt. Rd. 305 Comment
  JROH3186  Leptosiphon parviflorus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3196  Leptosiphon pygmaeus subsp. continentalis Toni Corelli 2005-6-1 291 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 144 Comment
  CHSC1270  Leptosiphon rosaceus H. Pearl 1930-5-1 San Mateo Moss Beach. Comment
  RSA0103659  Leptosiphon rosaceus E. B. Copeland 1903-5-24 3260 San Mateo Montara Point. Comment
  CAS-BOT-BC539289  Lessingia arachnoidea John Rawlings; Ken Hickman 2016-7-21 1906 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 122 Comment
  POM289269A  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  UC662640  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  RSA0001372  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC324072  Lessingia germanorum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains, Reservoir Hill. 137 Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324173  Lessingia hololeuca John H. Thomas 1969-10-19 15479 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH5841  Leucanthemum maximum Ann Lambrecht 2009-7-22 35 San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  UCD163782  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC272289  Leymus X multiflorus J. H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  JEPS71207  Leymus X vancouverensis William S. Cooper 1919-7-22 207 San Mateo Ano Nuevo Pt. Comment
  CAS-BOT-BC283696  Leymus condensatus David L. Morgan 1955-8-1 s.n. San Mateo 1 mile N of Santa Cruz County line on Highway 1 22 Comment
  CAS-BOT-BC272189  Leymus triticoides John H. Thomas 1960-6-25 8799 San Mateo Along or near a small creek running into Redwood slough between El Camino Real and railroad tracks near Maple Street, Redwood City 7 Comment
  RSA195563  Leymus triticoides John H. Thomas 1963-5-20 10113 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC306537  Ligusticum apiifolium A. D. E. Elmer July 1903 4966 San Mateo San Mateo Comment
  JROH2982  Ligustrum lucidum John Hunter Thomas 1978-5-23 19223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18085  Lilaea scilloides Carl B. Wolf 1929-4-29 3663 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  LA22069  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-BC130798  Lilium pardalinum Josephine D. Randall 1907-7-28 237 San Mateo Iversons near Peters Creek Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  CDA4898  Limnanthes douglasii subsp. ornduffii T. W. Heinrich 2004-4-21 s.n. San Mateo Adjacent to Highway 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property, Moss Beach. 0 Comment
  CDA36723  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  CAS-BOT-BC258032  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  UCSB39984  Limosella acaulis Thomas, John 1982-8-15 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JEPS58172  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC907992  Linanthus androsaceus J. M. Webber 1926-4-29 San Mateo Merced Lake Comment
  UC908011  Linanthus androsaceus Herbert L. Mason 1935-5-21 8315 San Mateo s of La Honda (Alpine Road); Santa Cruz Mountains Comment
  SEINET8729325 Image available Linanthus androsaceus subsp. croceus Herbert L. Mason 1935-1 8315 San Mateo Pebble Beach, Pescadero Comment
  SJSU12175  Linaria maroccana V. J. Haley 1985-3-6 San Mateo near El Monte & Moody Rds, Los Altos Hills Comment
  CDA6306  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  POM270415A  Lithocarpus densiflorus var. densiflorus Lyman Benson 1932-7-25 3952 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  RSA212176  Lithocarpus densiflorus var. densiflorus L. S. Rose 1969-8-22 69098 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  JROH3893  Lithophragma affine John Hunter Thomas 1991-4-25 24998 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC60217  Lobularia maritima Robert Robertson 1954-4-14 73 San Mateo By roadside adjacent to Salicornia marsh. Northwest of Palo Alto Yacht Club. 3 Comment
  UCD18543  Lobularia maritima Roman Gankin 1950-7-8 11 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  JROH733  Logfia gallica John H. Thomas 1971-5-30 15961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. 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
  UC21261  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo on rd. to Crystal Springs Comment
  JROH260  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH271  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1988-5-16 24461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH276  Lomatium macrocarpum John H. Thomas 1973-4-20 16583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132671  Lomatium macrocarpum A. D. E. Elmer 1903-04 4926 San Mateo Crystal Springs Lake. Comment
  POM287764  Lomatium macrocarpum Lyman Benson 1931-3-15 2636 San Mateo Emerald Lake, Redwood City Comment
  UC1368794  Lomatium macrocarpum David H. French 1968-4-19 2857 San Mateo w. Redwood City (s.e. of Upper Crystal Springs Reservoir, s.e. side Edgewood Rd., ca. 100 yds. n.e. of intersection w/ Canada Rd.) Comment
  JROH282  Lomatium utriculatum John Hunter Thomas 1981-5-25 20640 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34371  Lomatium utriculatum E. Finley 1993-3-3 s.n. San Mateo Edgewood Park. 0 Comment
  CAS-BOT-BC384624  Lonicera hispidula Mary Wicksten 1969-6-24 sn. San Mateo Miwok area - Huddart Park Comment
  JROH1664  Lonicera hispidula John Hunter Thomas 1989-5-9 24721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA1949  Lonicera hispidula var. vacillans C. B. Wolf 1930-11-5 1061 San Mateo 2 miles W of La Honda, Santa Cruz. 305 Comment
  UC484309  Lonicera hispidula var. vacillans Carl B. Wolf 1930-11-5 1805 San Mateo 2 mi w La Honda; Santa Cruz Mtns. 304 Comment
  SEINET8907183  Lonicera interrupta A. D. 1974-1 San Mateo hwy. 35 ca. 6 mi. from Jct. hwy. 92 701 Comment
  POM46739  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  JROH2051  Lotus corniculatus Carol Zabel 1989-6-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, just downstream from low-flow crossing on Road C Comment
  SEINET3696856 Image available Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo South of Pescadero 30 Comment
  UC729630  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo s of Pescadero; Pigeon Pt. 30 Comment
  RSA120409  Lotus formosissimus W. R. Dudley 1900-3-17 s.n. San Mateo Field above Seal Cove. Comment
  RSA10275  Lotus stipularis H. A. Barker 1927-5-6 679 San Mateo Kings Mountain Comment
  UCD164699  Lotus tenuis Peter Rubtzoff 1976-6-13 8631 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, margin of marshy area NW of Fog Forest. Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 San Mateo Huddart Park Rd. bank near office Comment
  RSA132358  Lotus wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
Read comments
Sep 19 2011
  UC1129221  Lotus wrangelianus H. S. Yates 1935-5-8 5207 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  IRVC28817  Lupinus P. W. Rundel 1962-7-27 1110 San Mateo Lake Tahoe, Emerald Bay. Sierra Nevada Ranges Comment
  UCSC006526  Lupinus Randall Morgan 1990-6-8 1752 San Mateo Colony along road just above Sandy Point ranger station (Sec 35, Franklin Point Quad) Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  CAS-BOT-BC195785  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-22 3495 San Mateo Belmont, Half Moon Bay road 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-BC195797  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48466 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC195805  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48149 San Mateo Canada Road - 4 miles north of Woodside Comment
  CAS-BOT-BC195784  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46116 San Mateo Highway 5, San Francisco County Jail Road north 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
  CAS-BOT-BC195801  Lupinus albifrons var. albifrons Charles Piper Smith 1944-6-15 44103 San Mateo Broadway, railroad right of way Comment
  CAS-BOT-BC195807  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48457 San Mateo Highway 5, junction Sharps Park Road Comment
  CAS-BOT-BC196120  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo South San Francisco, in town Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  SEINET182859  Lupinus arboreus Unknown 1921-9-29 Unknown San Mateo Half Moon Bay. Comment
  RSA10284  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 665 San Mateo North of Half Moon Bay. Comment
  RSA10285  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 664 San Mateo North of Half Moon Bay. Comment
  RSA91250  Lupinus arboreus var. arboreus Alice Eastwood, John T. Howell 1938-6-26 6077 San Mateo Crystal Springs Lake. Comment
  POM11367  Lupinus arboreus var. eximius C. P. Smith 1922-4-29 3503 San Mateo Montara Mountains, above Lake Pilarcitos. Comment
  CHSC57379  Lupinus bicolor Sandy Trimble 1987-4-13 11 San Mateo On e slope of Hwy 84, 6.7 mi w of Hwy 1, and 8.6 mi e of Hwy 35. 274 Comment
  UC764739  Lupinus bicolor R. F. Hoover 1939-4-21 4054 San Mateo 2 mi s Colma; s of Colma Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  RSA134067  Lupinus bicolor subsp. tridentatus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  POM10639  Lupinus bicolor subsp. umbellatus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range. Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  CAS-BOT-BC215066  Lupinus chamissonis Charles Piper Smith 1948-4-20 48107 San Mateo Highway 1, Edgemar sand dunes Comment
  SEINET12154528  Lupinus densiflorus var. aureus G. A. McCallum 1933-1 s.n. San Mateo Los Franus ranch Comment
  UC127061 Image available Lupinus eximius J. Burtt Davy 1895-4-20 1050 San Mateo Lake Pilarcitos; ; Lake Pilarcitos, San Mateo Co Comment
  RSA0036527  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37896  Lupinus latifolius var. latifolius Delzie Demaree 1932-4-9 8979 San Mateo Near entrance to [Gov.?] Ralph Estate Comment
  JROH2128  Lupinus nanus John H. Thomas 1975-4-5 17716 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UC138034  Lupinus nanus C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  JROH5732  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SEINET5628417 Image available Lupinus nanus A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced. Comment
  SJSU10761  Lupinus nanus H. L. Elliot 1958-5-31 129 San Mateo Jasper Ridge 7 mi NW of Stanford Univ Comment
  SEINET10936508  Lupinus nanus subsp. latifolius Walter Knight, Irja Knight 1964-9-2 Knight s.n. San Mateo Mouth of colma canyon in sand. Comment
  SEINET10486130  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2591 San Mateo Collected in vacant lots on both sides of sloat blvd. Just west of riverton Drive in san francisco. Comment
  SEINET10871083  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2545 San Mateo Collected in open lush meadow in the hilltops of the san francisco peninsula, On hwy. From woodside to la honda, 3.7 mi ne of la honda on the se side of the Hwy. Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  POM11074  Lupinus polyphyllus var. grandifolius A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro. Comment
  POM11052  Lupinus succulentus A. D. E. Elmer 1903-06 4681 San Mateo San Pedro. Comment
  UC75229  Lupinus succulentus C. F. Baker Apr 1902 1928 San Mateo Crystal Springs Lake Comment
  JROH2145  Lupinus succulentus John H. Thomas 1974-4-12 17143 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Escobar gate Comment
  CHSC59538  Lupinus variicolor Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SEINET10489088  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  UC201933  Lupinus variicolor Miss Harriet A. Walker 1915-4-24 3808 San Mateo in field near road to Millbrae; near road to Millbrae Comment
  JROH4526  Luzula comosa var. comosa John H. Thomas 1973-3-12 16494 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC441365  Luzula subsessilis Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain: Bitter Cherry Ravine Comment
  CAS-BOT-BC441367  Luzula subsessilis Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC441370  Luzula subsessilis John H. Thomas 1965-4-29 10611 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC441361  Luzula subsessilis Elizabeth McClintock; Philip Wheeler 1967-5-14 34 San Mateo San Bruno Mountain: east side of mountain, above Harold Ave., Brisbane. Slope above Philip Wheeler's house Comment
  POM186050  Lysichiton americanus A. D. E. Elmer 1903-06 4551 San Mateo Butano Creek Comment
  UCD41235  Lysichiton americanus Rebecca L. Moehlmann 1977-4-19 1 San Mateo 0.8 miles east of Cloverdale Road on Canyon Road. 15 miles south of Halfmoon Bay and Highway 1, turn east ( left) on Pescadero Road, go 2 miles than turn South (right) on Cloverdale Road. About 2 1/2 miles till Canyon Road. Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  JROH3367  Lysimachia arvensis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2945  Lythrum hyssopifolia John H. Thomas 1974-10-26 17630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0011333  Lythrum hyssopifolia John H. Thomas 1959-7-8 8020 San Mateo Pescadero Beach. Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  JROH2954  Lythrum hyssopifolia John H. Thomas 1967-6-1 12955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0011335  Lythrum hyssopifolia Josephine Randall 1907-6-29 247 San Mateo Portola Valley. Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  SD49787  Madia capitata J. H. Thomas 1959-8-16 8064 San Mateo 2.0 miles soputhwest of Pescadero. 60 Comment
  CAS-BOT-BC343909  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi. w. of Skyline Blvd. on Alpine Road 304 Comment
  CAS-BOT-BC343899  Madia elegans Delzie Demaree 1933-8-25 10519 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC343913  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  SD27831  Madia elegans subsp. elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1.0 mile west of Skyline Blvd. on Alpine Road. 305 Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1048  Madia exigua John H. Thomas 1977-4-29 18570 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343329  Madia gracilis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  JROH1074  Madia gracilis J. H. Thomas 1977-4-29 18571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1094  Madia gracilis John Hunter Thomas 1989-5-9 24710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1095  Madia gracilis John Hunter Thomas 1992-5-5 25215 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  UC917256  Madia gracilis W. A. Harvey and J. M. Tucker 1948-6-29 1703 San Mateo beside road to, just w of junction with Highway 5 Portola State Park; Skyline Boulevard Comment
  CAS-BOT-BC345111  Madia sativa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345115  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC345136  Madia sativa LeRoy Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  JROH1110  Madia sativa John Hunter Thomas 1982-7-22 21088 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH5749  Maianthemum racemosum L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Francisquito Creek, north of Rattlesnake rock Comment
  CAS-BOT-BC512114  Maianthemum racemosum subsp. amplexicaule Margaret A. Barry 1937-5-15 131 San Mateo Woods on Coal Mine Ridge Comment
  JROH4707  Maianthemum stellatum John H. Thomas 1977-4-21 18537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG45016  Maianthemum stellatum L. S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  UC109094  Malacothamnus hallii Alice Eastwood 1891-10-27 San Mateo Hills back of Belmont Belmont Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  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
  CHSC39807  Marah fabacea Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SD99478  Marah fabacea Ira L. Wiggins 1975-4-17 22145 San Mateo Northeast side of Southern Pacific right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  SD39366  Marah oregana Edith A. Purer 1933-4-25 3656 San Mateo King's Mountain Road Comment
  UC1746100  Marah oregana Annetta Carter, Helen Sharsmith 1937-5-23 1319 San Mateo Just S of Crystal Springs Lake. Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 Comment
  JROH617  Matricaria discoidea John H. Thomas 1971-4-21 15767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60298  Matthiola incana Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine. Comment
  CAS-BOT-BC422678  Meconella californica A. D. E. Elmer 1903-4-1 4499 San Mateo San Mateo toward Crystal Springs Comment
  JROH2154  Medicago arabica John Hunter Thomas 1990-5-8 24853 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2172  Medicago polymorpha John Hunter Thomas 1988-4-7 24377 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA254227  Medicago polymorpha Robert A. Norris 2287 San Mateo Near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC157962  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-6-21 9057 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek area Comment
  CAS-BOT-BC269480  Melica californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  POM87694  Melica californica Le Roy Abrams 1902-5-4 2407 San Mateo Woodside. Comment
  POM296604  Melica imperfecta Lyman Benson 1935-5-5 6537 San Mateo Lake Searsville 152 Comment
  CAS-BOT-BC264187  Melica subulata George Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary 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-BC264250  Melica torreyana W. R. Dudley 1894-8-13 s.n. San Mateo Devil's Canyon, Santa Cruz Mountain Peninsula Comment
  UCSB424  Melica torreyana Kraebel, C. 1932-7-24 San Mateo Cahill Ridge and Pilarcitos Creek Comment
  JROH2182  Melilotus indicus John H. Thomas 1965-5-12 10646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2188  Melilotus indicus John H. Thomas 1974-5-3 17238 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2198  Melilotus indicus John Hunter Thomas 1988-6-2 24497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2830  Mentha X piperita Carol Zabel 2006-8-23 65 San Mateo Jasper Ridge Biological Preserve, Stanford University; Dennis Martin site Comment
  UC634880  Mentha pulegium Herbert L. Mason Oct. 1923 785 San Mateo near summit of Jasper Ridge (toward the Hermits); near summit of Jasper Ridge toward the Hermits Comment
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Sep 19 2011
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  SEINET6627797 Image available Mentha spicata D. Aronson 1967-1 153 San Mateo East Palo Alto Comment
  UCD144580  Mercurialis annua Greg Escoto 2014-2-21 s.n. San Mateo San Pedro Valley Park, a county park located at 600 Oddstad Blvd., Pacifica. Visitor Center flower beds. 55 Comment
  CAS-BOT-BC438139  Mesembryanthemum nodiflorum W. R. O. 1973-10-10 1230 San Mateo Most stations; mobile estate project. Redwood City Comment
  CAS-BOT-BC438141  Mesembryanthemum nodiflorum Malcom A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City Comment
  CAS-BOT-BC428902  Micranthes californica George Oberlander 1949-4-9 50 San Mateo San Francisco Watershed Reserve. Northern Sweeney Ridge Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 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
  UCD68979  Microseris douglasii P. Rodriguez-Rojo 1997-3-27 San Mateo Jaspen Ridge. Serpentine annual grasslands. UTM: 10SEM4168 155 Comment
  CAS-BOT-BC349020  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2421 San Mateo Woodside Comment
  JROH1143  Microseris douglasii subsp. douglasii John H. Thomas 1967-5-10 12853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1153  Microseris douglasii subsp. douglasii John Rawlings, Toni Corelli 2010-5-19 0928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 20. 88 Comment
  CAS-BOT-BC349144  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  CAS-BOT-BC349145  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  CAS-BOT-BC349139  Microseris douglasii subsp. tenella K. L. Chambers 1953-5-12 462 San Mateo 3.2 mi. n. of Woodside on road to Crystal Springs Lake Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  SEINET10842027 Image available Microseris leucocarpha Charles F. Baker 1902-5-4 Baker 808 San Mateo Woodside. Comment
  CAS-BOT-BC322716  Microseris paludosa Kenton L. Chambers 1956-6-20 1049 San Mateo Pebble Beach near Pescadero Point between Highway 1 and the ocean Comment
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Jul 22 2020
  JROH5943  Microsteris gracilis John Rawlings 2017-3-17 1981 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Road F in East Serpentine near Escobar Gate. 161 Comment
  JROH5921  Microsteris gracilis John H. Thomas 1982-3-12 20804 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near [Escobar horse trail gate] fence. Comment
  UC162414  Mimulus grandis A. A. Heller 1906-6-8 8376 San Mateo near Ocean View; San Francisco Comment
  JROH1705  Minuartia douglasii John Hunter Thomas 1982-4-28 20875 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388828  Minuartia douglasii W. R. Dudley 1894-4-1 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Ravine Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC220661  Monardella villosa H. A. Dutton 1900-2-4 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC214072  Monardella villosa C. F. Leithold 1896-7-29 s.n. San Mateo Stanford University, Santa Cruz Peninsula Comment
  CAS-BOT-BC214173  Monardella villosa Gelsomina Smith 1951-6-5 106 San Mateo Searsville Lake edge 106 Comment
  RSA185020  Monardella villosa L. S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 366 Comment
  RSA218030  Monardella villosa Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  UC1314253  Monardella villosa subsp. franciscana C. W. O'Brien 1966-8-14 C- 66 -48 San Mateo Lake Pilarcitos 213 Comment
  JROH2842  Monardella villosa subsp. villosa John H. Thomas 1976-5-26 18159 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City 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
  CAS-BOT-BC444950  Montia fontana John H. Thomas 1973-4-25 16688 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  CAS-BOT-BC445198  Montia parvifolia H. L. Mason 1921-7-1 s.n. San Mateo Pescadero Creek Comment
  POM192787  Montia parvifolia W. R. Dudley 1895-6-6 s.n. San Mateo Pescadero Creek Comment
  JEPS127796  Muilla maritima Adam C. Schneider with C. Matt Guilliams 2013-4-7 65 San Mateo Along dirt road running parallel to the overhead power transmission lines. Comment
  CAS-BOT-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
  CAS-BOT-BC243706  Myoporum laetum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Above Hillside School, San Bruno Mountains Comment
  CAS-BOT-BC101782  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo near lagoon at Arroyo de los Frijoles Comment
  UC1135945  Myrica californica N. K. Carlson 1935-7-5 29 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  JROH2697  Myriophyllum aquaticum John Hunter Thomas 1987-5-26 24321 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  RSA176407  Myriophyllum aquaticum John H. Thomas 1964-10-2 10508 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  UC1101507  Myriophyllum sibiricum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1553 San Mateo Marshes at Sharp Point. Comment
Read comments
Aug 8 2011
  JROH2978  Myrtus communis John H. Thomas 1967-6-1 12980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC260022  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260233  Nassella pulchra A. D. E. Elmer 1903-6-1 4712 San Mateo Crystal Springs Lake Comment
  CDA20725  Nassella tenuissima L. Kuwahara 2006-6-1 PDR 1359399 San Mateo East side of Skyline Blvd., 3/4 mile south of State Hwy. 92. =Stipa tenuissima, 2nd confirmed natural occurrence, 3 (so far) reported. Potential pest. Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET183956  Navarretia heterodoxa Lewis S. Rose 1936-5-28 36306 San Mateo Emerald Lake, west of Redwood City 91 Comment
  CHSC28674  Navarretia squarrosa M. S. Taylor 1978-7-31 1871 San Mateo Ano Nuevo State Reserve. 0 Comment
  JROH3215  Navarretia squarrosa John Hunter Thomas 1982-7-3 21063 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA523345  Navarretia squarrosa Gordon H. True Jr. 1936-6-14 506 San Mateo Canyon south of Salada Beach 366 Comment
  UC125073  Navarretia squarrosa Katharine Brandegee Aug 1908 San Mateo Montara Point Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  POM65137  Navarretia squarrosa Stewart H. Burnham 1894-9-13 7228 San Mateo Outer Coast Range near La Honda Comment
  SD38781  Navarretia squarrosa Edith A. Purer 1933-8-4 5413 San Mateo Flat area near Baden Station Comment
  UCSC005138  Nemophila Randall Morgan 1994-3-12 2154 San Mateo Coal Mine Ridge Comment
  JROH2736  Nemophila heterophylla John Hunter Thomas 1991-4-11 24978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  CAS-BOT-BC219488  Nemophila parviflora George Oberlander 1950-4-16 691 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  SEINET6966637  Nerium oleander R. A. Evers, Clara V. Evers 1975-8-24 115027 San Mateo Trailer Villa, Redwood City. Comment
  JROH5953  Nuttallanthus texanus D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge area, rocky point Comment
  CAS-BOT-BC140439  Oemleria cerasiformis George Oberlander 1949-4-2 37 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC140447  Oemleria cerasiformis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  JROH3704  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3705  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Preserve, Stanford University. Moist slope along road near Searsville Lake Comment
  JROH3713  Oemleria cerasiformis John Hunter Thomas 1982-2-19 20801 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Goya Gate Comment
  RSA195542  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  UC860384  Oemleria cerasiformis S. B. Show 1907-2-18 8 San Mateo San Francisquito Creek 213 Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  CHSC59491  Oenanthe sarmentosa Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH287  Oenanthe sarmentosa John Hunter Thomas 1979-6-12 19589 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA269270  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown Prop., 3045 Ralston Ave., Burlingame Comment
  JROH2988  Olea europaea John H. Thomas 1967-5-10 12850 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS11666  Orobanche californica subsp. californica Mrs. Clara Hunt Sep 1908 San Mateo Farallone City. Comment
  CAS-BOT-BC499690  Orobanche californica subsp. californica Helen D. Geis 1901-10-26 s.n. San Mateo Half Moon Bay Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  CAS-BOT-BC238395  Orthocarpus James McMurphy 1909-5-25 s.n. San Mateo San Mateo Canyon Comment
  POM126839  Orthocarpus erianthus var. roseus M. S. Baker 1904-05 s.n. San Mateo Ocean View. Comment
  POM15373  Orthocarpus erianthus var. roseus A. D. E. Elmer 1903-05 4670 San Mateo South San Francisco. Comment
  RSA155567  Orthocarpus erianthus var. roseus L. S. Rose 1961-4-5 61034 San Mateo San Bruno Mountains. 366 Comment
  POM286544  Orthocarpus faucibarbatus Lyman D. Benson 1930-5-1 2066 San Mateo Stanford University, San Lorenzo mtn range. 122 Comment
  RSA130824  Orthocarpus faucibarbatus var. albidus W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Pescadero. Comment
  POM190455  Orthocarpus floribundus D. D. Keck 1932-5-6 1471 San Mateo One mile south of San Mateo, on US Hwy 101. Comment
  SEINET12265143  Orthocarpus lithospermoides G. A. McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  SEINET12324059  Orthocarpus pusillus E. McClintock, Knight, W.; Knight, I. 1982-1 4648 San Mateo San Bruno Mountain Comment
  JROH294  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH295  Osmorhiza berteroi John Hunter Thomas 1985-5-2 23580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56513  Osmorhiza chilensis Steven Triano 1988-5-24 170 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  POM278934  Oxalis oregana Lyman Benson 1930-5-3 2108 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  POM353456  Oxalis oregana Paul C. Silva 1948-1-31 2630 San Mateo Old La Honda Grade, 1/2 mile south of Skyline Blvd 488 Comment
  SEINET10870216  Oxalis oregana R. D. Sage 1992-1-6 Sage 13395 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  CAS-BOT-BC166715  Oxalis pes-caprae Peter Rubtzoff 1977-4-14 8945 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCR113570  Parietaria judaica Mitch Provance 1999-1-18 1745 San Mateo Daly City, west side of Mission St, c. 0.25 miles south of the San Mateo/ San Francisco County line 122 Comment
  CAS-BOT-BC413448  Parietaria judaica Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. Along Harold Road 91 Comment
  JROH5346  Paspalum distichum John H. Thomas 1978-9-24 19340 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of dam. Comment
  POM63452  Pectocarya pusilla A. D. E. Elmer 1903-04 4676 San Mateo Portola. Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4101  Pedicularis densiflora John H. Thomas 1957-4-16 6663 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4118  Pedicularis densiflora John Hunter Thomas 1982-1-3 20794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4097  Pedicularis densiflora Daniel Cohen 1953-4-11 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1/3 of the way up Jasper Ridge Road from Searsville Lake Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  RSA681600  Pedicularis densiflora Annuschka Deb 1989-4-7 80 San Mateo Page Mill Road, About 2 miles from Skyline Blvd., Palo Alto/ Los Altos Hills Comment
  CAS-BOT-BC7096  Pedicularis dudleyi Adolph Daniel Edward Elmer 1903-6-1 4289 San Mateo Iverson's Place. Pescadero Creek. Comment
  RSA125134  Pedicularis dudleyi E. F. Sprague 1956-5-28 1701 San Mateo Portola State Park, about campground headquarters 305 Comment
Read comments
Mar 2 2010
  RSA0006087  Pedicularis dudleyi A. D. E. Elmer 1903-06 4289 San Mateo Iverson's Place, Pescadero Creek. Comment
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Jun 13 2020
  UCSC006899  Pedicularis dudleyi Randall Morgan 1988-6-5 1236 San Mateo Upper Escape Rd, Portola S.P. Comment
  SEINET12182596  Pelargonium L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  UCSC003376  Pelargonium grossularioides Randall Morgan 2001-5-5 3724 San Mateo south of Franklin Point, San Mateo County Comment
  JEPS23863  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo about 2 mi n Pigeon Point (along the coast) 15 Comment
  POM281947  Pellaea mucronata Lyman Benson 1928-12-15 830 San Mateo La Honda Road, Santa Cruz Mountain Range 366 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
  JROH109  Pentagramma triangularis subsp. triangularis John H. Thomas 1968-3-17 14194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH307  Perideridia kelloggii John H. Thomas 1962-7-15 9914 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH309  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7873  Persea americana C. A. Staicer 1976-11-24 San Mateo 91 Inglewood Lane, Atherton Comment
  CAS-BOT-BC413765  Persicaria lapathifolia W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward Pilar Pt. Comment
  CAS-BOT-BC419390  Persicaria punctata Ira L. Wiggins 1974-10-27 22132 San Mateo Bed of San Francisquito Creek, along line between Palo Alto and Mrnlo [Menlo] Park and between San Mateo and Santa Clara Counties, near Pope Street bridge Comment
  RSA10999  Petasites palmatus C. B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  UCSC008146  Phacelia distans Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park 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
  UC672334  Phacelia divaricata Herbert L. Mason 1927-4-23 3687 San Mateo roadside between La Honda and Pescadero Creek Comment
  UC735096  Phacelia imbricata subsp. imbricata Lincoln Constance 1946-6-7 3077 San Mateo Skyline Drive about 2 mi sw Portola 457 Comment
  OBI13755  Phacelia malvifolia Lewis S. Rose 1965-5-3 65057 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  POM65348  Phacelia malvifolia A. D. E. Elmer 1903-05 4784 San Mateo San Bruno Hills. Comment
  RSA152046  Phacelia malvifolia John H. Thomas 1961-5-7 9282 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  SEINET3158196  Phacelia nemoralis L. S. Rose 1939-6-16 39281 San Mateo Skyline Blvd., above Woodside 564 Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence 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
  CAS-BOT-BC259011  Phalaris californica Ned Cahill 1974-7-14 363 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC650502  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  UCD88567  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC222504  Pholistoma auritum var. auritum Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC762978  Physocarpus capitatus R. F. Hoover 1941-4-23 4902 San Mateo San Mateo Creek below Crystal Springs Dam 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
  SEINET10542162  Physocarpus opulifolius Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  UCR253351  Picris echioides A. C. Sanders 2014-8-3 41232 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
  CDA34055  Pinus attenuata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .155-B San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH121  Pinus radiata John Hunter Thomas 1979-9-9 19730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC400305  Pinus radiata none San Mateo Pescadero Coast Comment
  POM291177  Piperia elongata Lyman Benson 1932-7-25 3951 San Mateo Kings Mt. above Woodside, Santa Cruz Mt. range, San Francisquito Creek watershed 305 Comment
  JROH2204  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2205  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15930  Plagiobothrys bracteatus Toni Corelli, John Rawlings 2016-4-29 1768 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC228118  Plagiobothrys chorisianus R. E. Frenkel 1964-4-2 412 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge and Whiting Ridge Roads 347 Comment
  CAS-BOT-BC228153  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1898-4-24 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near El Corte Madera Creek Comment
  CAS-BOT-BC228163  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Head of Andreas Reservoir Comment
  SD73208  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1969-6-10 4640 San Mateo 18.5 miles north of San Mateo Santa Cruz County line. Comment
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  JROH1423  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU2269  Plantago coronopus C. W. Sharsmith 1947-3-23 6746 San Mateo Pescadero Beach near Pescadero Point Comment
  UCD67941  Plantago coronopus A. Bennett 1977-5-1 29 San Mateo Hwy 84, 7 mi. W. of La Honda, N. side of road. Growing in level ground with sandy, wet soil. 15 Comment
  SJSU15215  Plantago elongata Toni Corelli 2010-5-4 623 San Mateo Ano Nuevo, Cascade Field, west of Atkinson Bluff Trail, edge of coastal bluff 10 Comment
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3119  Plantago erecta John Hunter Thomas 1981-5-25 20643 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
  CAS-BOT-BC164683  Plantago hirtella subsp. galeottiana Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  UC1125643  Plantago lanceolata N. K. Carlson 1935-6-29 100 San Mateo 1.5 mi se Pescadero Pt.; Santa Cruz Quad. 91 Comment
  RSA176766  Plantago maritima John H. Thomas 1963-5-20 10139 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1736686  Plantago subnuda Dean W. Taylor 1991-5-20 11790 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  UC1018907  Plectritis brachystemon S. C. Dyal, C. G. Nast 1938-5-4 718 San Mateo 1 mi w of San Mateo Comment
  JROH4241  Plectritis congesta subsp. brachystemon H. J. Dengler 1972-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By trail N.E.J.R. to S.F. Creek, at point where deer trail joins trail to creek, ca. 20' below junco nesting site. Comment
  JROH4251  Plectritis macrocera H. J. Dengler 1971-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grassland E. of Searsville Rocks in gully 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-BC255054  Poa compressa Peter H. Raven 1950-4-16 1812 San Mateo Flat fields between Geneva Avenue, San Francisco County and Summit of San Bruno Mountains, San Mateo County Comment
  CAS-BOT-BC246708  Poa howellii Roxana S. Ferris 1920-4-23 1951 San Mateo Santa Cruz Mountain Peninsula. Bridge in Alpine Road along Corte Madera Cr. 365 Comment
  JROH5777  Poa howellii John Rawlings 2016-4-16 1702 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the first footbridge on Trail 12 near the old quarries. 108 Comment
  CAS-BOT-BC247423  Poa pratensis George Oberlander 1950-5-6 880 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  SEINET10855247  Poa scabrella LeRoy R. Abrams Abrams 1162 San Mateo Menlo Park-reservoir. Comment
  CAS-BOT-BC243118  Poa secunda subsp. secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  JROH5423  Poa secunda subsp. secunda D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky north slope, Searsville Ridge. Comment
  SJSU15435  Poa unilateralis subsp. unilateralis Toni Corelli 2010-5-14 673 San Mateo Southern end of Pillar Point Bluff, San Mateo County. 32 Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85226  Pogogyne serpylloides Roy E. Buck and James A. West 1985-6-3 532 San Mateo Cascade Ranch. On old ranch road S of Whitehouse Canyon Rd. Just E of minor gulch draining SSE into small lake ca. 2.1 air km NE of Whitehouse Canyon Rd. CA Hwy. 1 junction 3.2 air km ENE of Franklin Point. 97 Comment
  SDSU7050  Pogogyne serpylloides D. F Howe 1969-6-10 San Mateo 18.5 miles north of San Mateo- Santa Cruz Co. Line on #1, San Mateo Co. Comment
  UC23973  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  UC17523  Polygala californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1145 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC166771  Polygonum arenastrum Peter Rubtzoff 1977-4-16 8953 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC413757  Polygonum argyrocoleon John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City Comment
  CAS-BOT-BC413944  Polygonum aviculare subsp. aviculare Thomas R. Mertens 1963-9-28 6 San Mateo 1-2 miles north of Santa Cruz County line on State Highway 1 Comment
  JROH3265  Polygonum aviculare subsp. depressum John Hunter Thomas 1982-7-22 21087 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Saersville Lab. Comment
  CAS-BOT-BC414236  Polygonum aviculare subsp. depressum Ira L. Wiggins 1980-8-29 22251 San Mateo Sandy bed of San Francisquito Creek, 100--200 m upstream from Pope Street Bridge, Menlo Park Comment
  RSA10274  Polygonum paronychia H. A. Barker 1927-5-14 669 San Mateo North of Half Moon Bay. Comment
  RSA88326  Polygonum patulum J. T. Howell 1953-6-3 29057 San Mateo Bayshore Hwy, Redwood City. Comment
  CAS-BOT-BC76903  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side King's Mountain Comment
  RSA169347  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mountain 610 Comment
  CAS-BOT-BC384625  Polypodium californicum M. Danielson 1967-4-30 s.n. San Mateo On old road above and south of Crystal Springs Road Comment
  CAS-BOT-BC76902  Polypodium californicum George Oberlander 1951-3-11 1157 San Mateo San Francisco Watershed Reserve - Pilarcitos Canyon Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  UC42914  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  UC42920  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  UC42915  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Comment
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC233158  Polypogon interruptus Robert Robertson 1954-4-14 76 San Mateo By roadside NW of Palo Alto Yacht Club 3 Comment
  JROH5441  Polypogon monspeliensis John H. Thomas 1963-6-23 10160 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH5451  Polypogon monspeliensis John Hunter Thomas 1981-7-12 20685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock. Comment
  JROH5456  Polypogon monspeliensis John Hunter Thomas 1987-5-5 24242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1100375  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1609 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  UCD91304  Polypogon monspeliensis Beecher Crampton 1962-6-11 6488 San Mateo Northern city limits of Pacifica, State Hwy. 1 just s.w. of its junction with Skyline Blvd. Comment
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  JROH4815  Polypogon viridis John Hunter Thomas 1980-5-20 19981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA430495  Polystichum dudleyi Lyman Benson 1934-8-19 6115 San Mateo La Honde Grade, Santa Cruz Mountains, transition zone 305 Comment
  CAS-BOT-BC76608  Polystichum munitum J. H. Thomas 1949-3-29 198 San Mateo King's Mountain Comment
  CAS-BOT-BC76609  Polystichum munitum D. E. Breedlove 1973-9-26 35557 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC76613  Polystichum munitum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Horseshoe Ridge Comment
  CHSC39836  Polystichum munitum Maxey-Jones 1928-4-21 San Mateo La Honda Redwoods. Comment
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Jul 7 2010
  POM87723  Polystichum munitum L. R. Abrams 1902-1-12 2256 San Mateo Kings Mountain Comment
  RSA0016813  Polystichum munitum B. J. Hoshizaki 1991-10-4 91 -4 [A] San Mateo Along road between Yerba Buena Nursery and Langly Hill Quarry. Woodside Ranch, 19500 Skyline Blvd., Redwood City. Comment
  CAS-BOT-BC105566  Populus trichocarpa W. R. Dudley 1894-3-26 s.n. San Mateo Creek by Pascadero bridge, Pescadero - Santa Cruz Peninsula Comment
  JROH3841  Populus trichocarpa John H. Thomas 1976-4-30 18099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dam. Comment
  UCSB18690  Populus trichocarpa Schulte, John 1963-4-9 San Mateo 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  RSA3934  Potamogeton foliosus W. R. Dudley 1909-10-10 s.n. San Mateo Near boat landing, club house Capital Springs Reservoir Comment
  JROH5512  Potamogeton foliosus subsp. foliosus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257679  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos Lake. Comment
  CAS-BOT-BC453746  Potamogeton natans Roxana S. Ferris 1920-9-3 2043 San Mateo Santa Cruz Mountain Peninsula. Upper Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC453999  Potamogeton pectinatus M. S. Taylor; E. Pierce 1978-7-31 1875 San Mateo Ano Nuevo State Reserve, between Hwy 1 and the Pacific Ocean, n of Santa Cruz. Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  CAS-BOT-BC141933  Potentilla anserina subsp. pacifica David D. Keck 1933-5-11 2291 San Mateo Half Moon Bay, ca. 2 miles north of town. Comment
  JROH4667  Prosartes hookeri W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516353  Prosartes hookeri W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC517393  Prosartes smithii W. R. Dudley 1906-3-9 s.n. San Mateo Santa Cruz Mountain Peninsula, in bottom of Purisima Canyon, below Kings Mountain Comment
  CDA40755  Prunella vulgaris subsp. vulgaris Villegas & France 1972-8-7 PDR # 37028 San Mateo 415 Cypress Avenue, Millbrae. 0 Comment
  POM63307  Prunella vulgaris var. lanceolata A. D. E. Elmer 1903-06 4206 San Mateo Crystal Springs Lake. Comment
  RSA18456  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo South of Pebble Beach near Pescadero. Comment
  POM209848  Prunella vulgaris var. lanceolata D. D. Keck 1934-7-7 2935 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking ocean. Comment
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC158175  Prunus emarginata L. R. Abrams 1916-4-22 5575 San Mateo Pilarcitos [Canon] Canyon Comment
  CAS-BOT-BC158177  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154498  Prunus ilicifolia George Oberlander 1949-8-20 388 San Mateo Sweeney Ridge Comment
  RSA454145  Prunus ilicifolia L. M. Booth 1932-10-29 2119 San Mateo San Bruno Mountain. 61 Comment
  UC1128422  Prunus ilicifolia A. Wright 1928-9-16 San Mateo San Andreas Lake 152 Comment
  UC311194  Prunus subcordata A. D. E. Elmer April, 1903 4583 San Mateo Portola Comment
  CAS-BOT-BC156356  Prunus virginiana var. demissa Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From mouth of Colma Canyon on south side of Guadalupe parkway Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  CAS-BOT-BC356473  Pseudognaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Santa Cruz Mountain Peninsula. Near upper Mud Lake, Coal Mine ridge Comment
  JROH752  Pseudognaphalium californicum D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH757  Pseudognaphalium californicum John H. Thomas 1967-5-10 12851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH758  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC71894  Pseudognaphalium californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1123 San Mateo Pilarcitos Lake and Canon Pilarcitos Lake, Pilarcitos Canon Comment
  JROH790  Pseudognaphalium luteoalbum John Rawlings 2011-12-23 1099 San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat dock near Searsville Lab (Searsville Lab Landing). 104 Comment
  UCD166153  Pseudognaphalium luteoalbum Jack Major; M. Forde and S. Bamberg 1962-4-3 737 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC357117  Pseudognaphalium luteoalbum John H. Thomas 1976-5-2 12804 San Mateo San Bruno Mountain. About 1/4 mile up Market St. from new school in canyon Comment
  CAS-BOT-BC357126  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357513  Pseudognaphalium ramosissimum J. H. Thomas 1958-8-1 7376 San Mateo Coastal bluffs just north of mouth of San Gregorio Creek 30 Comment
  JROH807  Pseudognaphalium ramosissimum Herb Dengler 1972-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on trail along SF Creek 1000 feet below tiger lily site, where the trail rises to its locally highest elevation Comment
  CAS-BOT-BC361561  Pseudognaphalium stramineum Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  JROH808  Pseudognaphalium stramineum John Hunter Thomas 1977-6-16 18780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC361564  Pseudognaphalium stramineum W. R. Dudley 1895-2-9 s.n. San Mateo Santa Cruz Mountain Peninsula. Arroyo de los Frijoles Comment
  CAS-BOT-BC361565  Pseudognaphalium stramineum W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Spanish Town Comment
  CAS-BOT-BC85902  Pseudotsuga menziesii George Oberlander 1950-7-15 1100 San Mateo San Francisco Watershed Reserve, Cahill Ridge Comment
  CAS-BOT-BC85903  Pseudotsuga menziesii unspecified 1894-3-24 s.n. San Mateo Fl. near Pescadero Cr. Comment
  UCR201596  Pseudotsuga menziesii June Latting 1972-4-21 s.n. San Mateo Central Coast, Santa Cruz Mountains, Pseudotsuga study site 777 Comment
  CAS-BOT-BC85911  Pseudotsuga menziesii E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt., west slope 792 Comment
  JROH1176  Psilocarphus tenellus John H. Thomas 1955-5-6 5001 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
  JROH1191  Psilocarphus tenellus John Hunter Thomas 1984-4-12 23290 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421315  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo At Franklin Point. Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  JROH5759  Punica granatum John H. Thomas 1973-6-15 16854 San Mateo Woodside. [Jasper Ridge Biological Preserve fence line.] Just outside of Stanford Property, near intersection of San Hill and Whisky Hill roads. 121 Comment
  SEINET8229663  Pyrola aphylla A. D. E. Elmer 1903-1 4297 San Mateo Pescadero. Comment
  UC1135331  Quercus agrifolia C. M. Belshaw 1935-1-25 1457 San Mateo 2.8 mi w Woodside (on King Mt Road); Santa Cruz Quad. 457 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
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  SBBG32402  Quercus agrifolia var. agrifolia L. S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 121 Comment
  JROH2474  Quercus douglasii John Hunter Thomas 1984-10-22 23487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA118985  Quercus durata Marcel Reeves 1954-4-23 61 San Mateo Jasper Ridge above Searsville Lake. 168 Comment
  JROH2484  Quercus durata var. durata John H. Thomas 1972-8-18 16149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105386  Quercus kelloggii W. R. Dudley 1901-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula, near Los Trancos Creek Comment
  CAS-BOT-BC105396  Quercus kelloggii Le Roy Abrams 1898-3-1 s.n. San Mateo Woodside Comment
  JEPS48850  Quercus kelloggii James G. Daly 1934-1 545 San Mateo near crossroads of Skyline Blvd. and La Honda road (watershed of San Gregorio Creek); Santa Cruz Mts., San Gregorio Creek Comment
  JROH2495  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH2511  Quercus kelloggii John Hunter Thomas 1988-4-6 24372 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near dam Comment
  POM270254  Quercus kelloggii Lyman Benson 1930-5-3 21100 San Mateo Above Woodside, Mt. Range: Santa Cruz 366 Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  HSC23995  Quercus lobata Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  JROH2516  Quercus lobata John H. Thomas 1967-5-31 12945 San Mateo Jasper Ridge Biological Preserve, Stanford University; above lake Comment
  RSA623993  Quercus lobata R. Hoffough 1929-4-24 278 San Mateo Jasper Ridge- Stanford Campus. Comment
  UCSB34854  Quercus lobata Gropp, K. 1959-4-8 San Mateo 2 Frederick Court, Menlo Park, front yard Comment
  CAS-BOT-BC62889  Quercus lobata W. R. Dudley 1893-12-4 s.n. San Mateo By road Hopperville to Woodside Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  JROH2529  Quercus wislizeni var. frutescens Toni Corelli 2007-1-31 337 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 9 140 Comment
  CAS-BOT-BC362546  Rafinesquia californica Fred Hemphill 1973-5-14 822 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA187310  Ranunculus E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  RSA18084  Ranunculus aquatilis var. capillaceus Carl B. Wolf 1929-4-29 3665 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  SJSU2306  Ranunculus californicus C. W. Sharsmith 1950-4-16 6635 San Mateo near Pescadero Point near Pescadero Comment
  UC511335  Ranunculus californicus Lyman Benson 1931-3-15 2642 San Mateo Emerald Lake San Francisco Bay Watershed, Santa Cruz Mt. Range, Redwood C 152 Comment
  POM268417  Ranunculus californicus Lyman Benson 1935-3-10 6256 San Mateo San Gregorio. Pacific Ocean 61 Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  CAS-BOT-BC378526  Ranunculus californicus var. californicus Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, grassy slope above Fern Rock Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC378550  Ranunculus californicus var. californicus Paul F. Covel 1937-4-15 644 San Mateo Hgwy no. Half Moon Bay Comment
  UC575705  Ranunculus hebecarpus Lewis S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  JROH3493  Ranunculus hebecarpus John Hunter Thomas 1991-4-11 24986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near Rattlesnake Rocks Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  POM269867  Ranunculus lobbii Roxana S. Ferris 1918-3-31 s.n. San Mateo Mud Lakes, Coal Mine Ridge Comment
  RSA119758  Ranunculus lobbii James I. McMurphy 1904-1 s.n. San Mateo Coal Mine Road Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  JROH5787  Ranunculus muricatus John Rawlings 2016-4-14 1703 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 18 in oak woodland 124 Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  POM269795  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Road betw woodside and Byrnes store Comment
  UCD97310  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  JROH5873  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  POM283036  Rhamnus californica Lyman Benson 1934-7-29 6110 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  RSA7858  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1472 San Mateo 1/2 way up Kings Mt Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC56664  Rhododendron occidentale William R. Dudley 1893-5-15 s.n. San Mateo near Big Trees Felton Comment
  UC11717  Ribes J. Burtt Davy Jun 21 1893-Jun 23 1893 1155 San Mateo Pilarcitos Lake and Canyon Comment
  JROH2632  Ribes aureum var. gracillimum D. E. Breedlove 1971-5-31 19354 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM141978  Ribes aureum var. tenuiflorum A. D. E. Elmer 1903-05 4514 San Mateo Portola Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  UC974953  Ribes californicum Lewis S. Rose 1937-3-14 37003 San Mateo Belmont 152 Comment
  RSA18264  Ribes californicum Carl B. Wolf 1927-6-27 459 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC93000  Ribes californicum var. californicum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  JEPS121444  Ribes californicum var. californicum Adam C. Schneider with C. Matt Guilliams 2013-2-2 8 San Mateo Crystal Springs Reservoir Comment
  JROH2638  Ribes californicum var. californicum Duncan M. Porter 1961-2-8 742 San Mateo Jasper Ridge Biological Preserve, Stanford University. N face of sandstone cliff at N end of ridge above San Francisquito Creek. Comment
  JROH2640  Ribes californicum var. californicum John H. Thomas 1967-3-26 12418 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  JROH2650  Ribes californicum var. californicum Carol Zabel 1989-2-20 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 near intersection with Trail 10. Comment
  SEINET6205023  Ribes divaricatum L. S. Rose 1965-1 65008 San Mateo Searsville Lake. Comment
  CAS-BOT-BC173084  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC173087  Ribes divaricatum var. pubiflorum L. R. A. 1904-4-10 s.n. San Mateo East of Crystal Springs Reserv. Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  UC311538  Ribes malvaceum A. D. E. Elmer March 1903 4535 San Mateo Portola Comment
  JROH2663  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC566015  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle 91 Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  SEINET10482931  Ribes menziesii Mary Susan Taylor 1978-8-30 Taylor 1855 San Mateo Comment
  UC75089  Ribes sanguineum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  SEINET13942794 Image available Ribes sanguineum Lewis S. Rose 1947-1 47027 San Mateo Kings Mountain, alt ca 2000 ft 610 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
  JROH2677  Ribes sanguineum var. glutinosum John H. Thomas 1975-5-2 17853 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC144611  Ribes sanguineum var. glutinosum W. R. Dudley 1894-7-29 s.n. San Mateo Hill just beyond La Honda Comment
  SEINET12220349  Ribes sanguineum var. glutinosum Unknown 1932-1 8934 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC363086  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo Hillsides above Emerald Lake, back of Redwood City Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  UC1084381  Rorippa G. Thomas Robbins 1937-4-11 81 San Mateo along Skyline Boulevard near County Jail (s of San Francisco); s of San Francisco Comment
  CAS-BOT-BC74652  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  CAS-BOT-BC74653  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo In bottom of San Francisquito Creek, about 60 m. above Pope Street bridge. Comment
  CAS-BOT-BC147628  Rosa californica Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  POM223624  Rosa californica S. S. Berry 1909-2-27 s.n. San Mateo Roadside near Adalanta Villa. 46 Comment
  UC527528  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo 2 mi back of Stanford University (near Schenckels Camp); Los Trancos Creek 91 Comment
  RSA246188  Rosa gymnocarpa E. K. Balls 1969-9-18 12174 San Mateo 6 miles S from jct (crossing) of Hwy 84 with Hwy 35 along the La Honda [road?]. Beside San Gregorio Creek. Comment
  NY335771  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  JROH5631  Rosmarinus officinalis John Rawlings 2014-4-4 1233 San Mateo Jasper Ridge Biological Preserve, Stanford University; 20 meters east of Goya Gate a few meters inside Preserve fence line. 195 Comment
  CAS-BOT-BC156648  Rubus bifrons Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  CAS-BOT-BC156772  Rubus spectabilis Peter H. Raven 1951-3-12 2749 San Mateo N. base San Bruno Mountains 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-BC157078  Rubus ursinus L. R. Abrams 1914-10-14 5132 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC157101  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157104  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC157105  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC422088  Rumex acetosella E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station. Comment
  CAS-BOT-BC421824  Rumex conglomeratus Josephine D. Randall 1907-7-24 290 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC421570  Rumex crassus John H. Thomas 1963-7-19 10195 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC433363  Rumex crispus W. R. Dudley 1893-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC433750  Rumex persicarioides W. R. Dudley 1896-11-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Spanishtown beach near mouth of the Pilarcitos. Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  JROH2213  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
  RSA112462  Rupertia physodes Ynez Henderson 1920-05 s.n. San Mateo Near Searsville Lake. Comment
  RSA112461  Rupertia physodes Paul R. Hichborn 1920-5-3 174 San Mateo San Francisquito Creek near Searsville. Comment
  SEINET12155887  Rupertia physodes Unknown 1932-1 9168 San Mateo Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC454108  Ruppia cirrhosa Lewis S. Rose 1936-9-6 36724 San Mateo Granada 1 Comment
  RSA34798  Ruppia maritima I. L. Wiggins 1946-4-30 11199 San Mateo In brackish pool on W side of Bayshore Hwy 1/2 mile N of Redwood City, San Mateo County Comment
  SJSU4472  Ruta chalepensis A. J. Hutchko 1962-5-20 100 San Mateo by seaside walk near foot of Grove St, Half Moon Bay 15 Comment
  JROH1713  Sagina apetala John H. Thomas 1963-4-17 10036 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  UCD163747  Sagina decumbens subsp. occidentalis Peter Rubtzoff 1988-5-3 9916 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, near its crossing of the upper part of East Fork Colma Creek. Comment
  JEPS59843  Salicornia virginica unknown 1925-5-28 18 San Mateo Tunitas Comment
  UC1191404  Salicornia virginica Malcolm A. Nobs and S. Galen Smith 1949-8-26 1601 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  SEINET4174272  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Comment
  SEINET6901955  Salicornia virginica Robert A. Evers, Clara V. Evers 1975-8-24 115026 San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  JROH3856  Salix laevigata W. R. Dudley 1894-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge at Ramsay's above Searsville Comment
  SJSU7512  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-16 65007 San Mateo Searsville Lake 121 Comment
  POM167483  Salix lasiolepis A. D. E. Elmer 1903-03 4875 San Mateo Searsville Lake. Comment
  SBBG33482  Salix lasiolepis A. D. E. Elmer -Mar-1903 San Mateo Searsville Lake Comment
  UCD111654  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 121 Comment
  UCR279843  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  CAS-BOT-BC124482  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1964-5-4 986 San Mateo Abandoned quarry south side of Colma Creek in Colma Canyon Comment
  RSA155449  Salix lucida subsp. lasiandra L. S. Rose 1961-2-16 61004 San Mateo 3 miles N of La Honda. 335 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC126491  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126494  Salix sitchensis L. S. Rose 1932-1-23 3217 San Mateo Arroyos, Moss Beach Comment
  CAS-BOT-BC126497  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo Near road from San Andreas Lake to Pilarcitos Lake Comment
  CAS-BOT-BC126502  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126510  Salix sitchensis E. A. McGregor 1908-3-28 s.n. San Mateo [King's] Kings Mt. 365 Comment
  CAS-BOT-BC166960  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
  POM223618  Salix sitchensis S. S. Berry 1909-3-13 s.n. San Mateo Kings Mtn Rd. 457 Comment
  CAS-BOT-BC126484  Salix sitchensis J. W. Congdon 1897-7-21 s.n. San Mateo Coast Range Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  SJSU5408  Salvia officinalis A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillside Dr, Burlingame Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  SEINET5570447  Salvia spathacea H. S. Gentry 1931-1 92 San Mateo Collected about 1 miles SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC235035  Sambucus Peter Rubtzoff; Patricia Fallon 1987-8-26 9840 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe [Guadalupe] Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadelupe [Guadalupe] Road. Upper part of East Fork Colma Creek Canyon Comment
  POM46724  Sambucus caerulea A. D. E. Elmer 1903-07 4689 San Mateo Portola Comment
  POM46693  Sambucus callicarpa L. R. Abrams 1916-3-26 5589 San Mateo Road between San Mateo and Half-Moon Bay Comment
  RSA120031  Sambucus mexicana Paul R. Hichborn 1920-4-22 s.n. San Mateo Tasper Ridge Comment
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Oct 12 2021
  POM46725  Sambucus microbotrys A. D. E. Elmer 1903-05 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC246017  Sambucus nigra subsp. caerulea Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple 91 Comment
  CAS-BOT-BC246026  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper Hill, Santa Cruz Peninsula Comment
  CAS-BOT-BC257332  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  UC204143  Sambucus racemosa var. racemosa A. D. E. Elmer June, 1903 5080 San Mateo Butano Creek Comment
  UCSB11444  Sambucus racemosa var. racemosa Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo 45 Comment
  OBI8785  Sanicula arctopoides Lewis S. Rose 1961-4-5 61030 San Mateo San Bruno Mts. 366 Comment
  SEINET12121123  Sanicula arctopoides E. McClintock, Knight, W.; Knight, I. 1982-1 4642 San Mateo upper elevations of San Bruno Mountain, especially around parking lot area Comment
  JROH326  Sanicula bipinnatifida John Hunter Thomas 1991-5-2 25018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1984  Sanicula crassicaulis A. Goekler 1929-5-10 San Mateo Moss Beach. Comment
  JEPS85564  Satureja douglasii Craig Dremann 1986-9-13 330 San Mateo Stage Road 1 1/2 mi s San Gregorio Comment
  RSA218024  Satureja douglasii Walter Knight, Elizabeth McClintock, I. Knight 1963-9-2 s.n. San Mateo San Bruno Mountains; Power Line Ridge. Comment
  RSA790257  Schedonorus arundinaceus Peter Rubtzoff 1976-6-13 8632 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and NW of Fog Forest. Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15965  Schoenoplectus acutus var. occidentalis John Rawlings, Ken Hickman 2016-5-26 1843 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
  UC841022  Scirpus maritimus Lewis S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  CDA39140  Scirpus microcarpus I. J. Campbell 1959-4-16 s.n. San Mateo Quadro Ranch, Pescadero. 0 Comment
  POM292613  Scoliopus bigelovii Lyman Benson 1931-2-28 2611 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  UC844165  Scoliopus bigelovii Mrs. H. R. Ebright March 1922 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519014  Scoliopus bigelovii James McMurphy 1906-3-9 s. n. San Mateo Below Kings Mountain Comment
  CAS-BOT-BC519015  Scoliopus bigelovii A. D. E. Elmer 1903-3-1 4559 San Mateo King's Mountain Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  RSA100983  Scoliopus bigelovii G. Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  CDA7621  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  UCSC007779  Scrophularia californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC75032  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs lake Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame 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-BC59271  Sedum spathulifolium W. R. Dudley 1894-4-21 s.n. San Mateo Rocks below Crystal Springs Reservoir. Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH685  Senecio minimus Toni Corelli 2006-8-16 323 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, below Dennis Martin marker site 70 Comment
  JROH684  Senecio minimus Carol Zabel 2002-8-20 47 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13 beneath east end of causeway bridge Comment
  CAS-BOT-BC364239  Senecio sylvaticus Javier Penalosa 1963-3-9 2668 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 Comment
  CAS-BOT-BC364630  Senecio vulgaris Ira L. Wiggins 1973-6-24 22030 San Mateo Bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  UCSC007780  Senecio vulgaris Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC80298  Sequoia sempervirens J. H. Thomas 1949-10-16 1141 San Mateo Along La Honda Creek, about 0.7 miles north of La Honda Comment
  SBBG52369  Sequoia sempervirens F. C. Boutin 1968-3-25 1839 San Mateo Palo Alto, from the "Palo Alto" near the train bridge over San Francisquito Crk Comment
  UC766822  Sequoia sempervirens R. F. Hoover 1941-2-12 4756 San Mateo above La Honda; La Honda Creek Comment
  SEINET5334846  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Redwood forest. Comment
  RSA448568  Sidalcea diploscypha L. S. Rose 1936-5-28 36300 San Mateo Emerald lake, W. of Redwood City. Comment
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley Comment
  SD39295  Sidalcea diploscypha Edith A. Purer 1933-5-30 3636 San Mateo Between Woodside and Spring Valley Lakes. Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 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
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA448202  Sidalcea malviflora subsp. malviflora Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  UC136248  Silene californica C. F. Baker 1903-6-30 3352 San Mateo Crystal Springs Comment
  JEPS127818  Silene gallica Adam C. Schneider with C. Matt Guilliams 2013-4-7 81 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC166915  Silene gallica Peter Rubtzoff 1978-5-5 9164 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC389899  Silene scouleri subsp. scouleri Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Kamtchaka [Kamchatka] Point Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  JEPS127795  Sisyrinchium bellum Adam C. Schneider with C. Matt Guilliams 2013-4-7 66 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  RSA133098  Sisyrinchium bellum Donald A. Johansen 1933-5-18 708 San Mateo Hills above Searsville Lake, Stanford University Campus Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  UC75049  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake Comment
  UCR115979  Sisyrinchium bellum Tom Paradise 1993-5-3 14 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  SEINET3561666 Image available Sitanion jubatum Lewis S. Rose 1932-1 32226 San Mateo Redwood City. Comment
  UCR51647  Smilacina racemosa 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
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  JEPS96897  Solanum americanum Dean W. Taylor 1988-3-30 9474 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  UC1125189  Solanum douglasii H. S. Yates 1935-2-3 5007 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  NY827232  Solanum furcatum P. H. Raven 1950-4-16 1773 San Mateo On the outskirts of Colma. 61 Comment
  CHSC57101  Solanum physalifolium var. nitidibaccatum Steven Triano 1988-5-24 214 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UC563964  Solanum physalifolium var. nitidibaccatum Ira L. Wiggins 1935-8-24 8164 San Mateo 1/2 mi s of Moss Beach Comment
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Mar 12 2009
  CAS-BOT-BC154184  Solanum umbelliferum F. Hemphill 1973-5-6 751 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS29413  Solidago spathulata L. R. Heckard 1961-7-16 1260 San Mateo near summit San Bruno Mt. (ne-facing slope to the ne of transmitting station KQED) 304 Comment
  JEPS89408  Solidago spathulata Dean W. Taylor 1990-8-30 11535 San Mateo Santa Cruz Mountains, San Bruno Mountain, along the access road on the main ridge 50 feet to the e of locked gate at e end of parking lot near radio tower area San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain Comment
  CAS-BOT-BC365193  Solidago velutina subsp. californica Josephine D. Randall 1907-7-4 96 San Mateo Santa Cruz Peninsula. Mill's Lake Comment
  JROH1236  Solidago velutina subsp. californica John Hunter Thomas 1989-6-17 24779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30800  Solidago velutina subsp. californica Edith A. Purer 1933-8-25 San Mateo Spring Valley, along roadside. Comment
  CAS-BOT-BC365932  Soliva sessilis Walter Knight; Irja Knight 1964-4-13 635 San Mateo San Bruno Mountain. North Power Line Ridge road Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  CAS-BOT-BC374709  Sonchus oleraceus Elizabeth McClintock 1963-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC235287  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo Near Bayshore and University Avenue. East Palo Alto Comment
  UCSC003832  Spergula arvensis Unknown unknown s.n. San Mateo Half Moon Bay, 2 miles inland. Half Moon Bay Comment
  JROH1750  Spergularia bocconi John H. Thomas 1967-5-12 12891 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390457  Spergularia macrotheca var. macrotheca John H. Thomas 1967-5-7 12833 San Mateo Pigeon Point. Altitude about sea level. Near lighthouse Comment
  SJSU15797  Spergularia macrotheca var. macrotheca Toni Corelli 2010-6-1 677 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 23 Comment
  CAS-BOT-BC390461  Spergularia macrotheca var. macrotheca J. S. Rowley 1931-6-7 s.n. San Mateo Pigeon Point Comment
  CAS-BOT-BC390464  Spergularia macrotheca var. macrotheca R. Bacigalupi 1941-10-22 2743 San Mateo Very close to the San Francisco-San Mateo County Line Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  CAS-BOT-BC390470  Spergularia macrotheca var. macrotheca W. S. Atkinson 1901-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC390922  Spergularia marina Walter Knight; Irja Knight 1964-9-2 984 San Mateo San Bruno Mountain. Beach at Point San Bruno Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA128560  Spergularia salina P. H. Raven 1950-5-7 2039 San Mateo Moss Beach. Comment
  HSC100920  Sphacele calycina E. L. Greene 1887-6-12 San Mateo San Mateo. Comment
  SD25965  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, sand dunes, Ano Nuevo Point. Comment
  CAS-BOT-BC534887  Spirodela polyrhiza Roxana S. Ferris 1920-10-1 2101 San Mateo Mud Lakes, Coalmine Ridge Comment
  CDA9322  Stachys ajugoides M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 867 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  SBBG29843  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E of Crystal Springs Lake 152 Comment
  POM224475  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  RSA107095  Stachys ajugoides L. S. Rose 1956-7-2 s.n. San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  RSA446594  Stachys ajugoides E. A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  UC635184  Stachys ajugoides var. rigida Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  SBBG6546  Stachys bullata H. and M. Dearing 1933-5-14 San Mateo Skyline Drive, S of San Francisco Comment
  UC1537553  Stachys bullata Gordon H. True Jr. 1936-6-7 491 San Mateo 2 mi s Pescadero 15 Comment
  UCLA71396  Stachys bullata Alice Eastwood 1933-5-31 18840 San Mateo on road near Pescadero Comment
  UCR122977  Stachys bullata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6771 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH2900  Stachys bullata Herb Dengler 1972-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above (W.) of junction of S.F. and Bear Creeks Comment
  RSA0109085  Stachys pycnantha Carl B. Wolf 1927-7-1 535 San Mateo Above Emerald Lake, back of Redwood City. Comment
  HSC31059  Stebbinsoseris heterocarpa Kenton Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda Rd. Comment
  UCSC007784  Stellaria media Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC398986  Stellaria nitens Elizabeth McClintock 1965-4-25 s.n. San Mateo Power Line Ridge Comment
  CAS-BOT-BC375210  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Pt. San Pedro Comment
  POM88000  Stephanomeria virgata L. R. Abrams 1902-9-28 3002 San Mateo New Grade Road. Comment
  JROH5393  Stipa miliacea var. miliacea John Rawlings 2011-10-11 1088 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the brick path from Visitor Parking to Sun Field Station. 119 Comment
  CAS-BOT-BC423016  Stylomecon heterophylla Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. South Canyon below western power lines. Comment
  SJSU110  Symphoricarpos albus var. laevigatus C. D. Duncan 1929-5-30 San Mateo Jasper Ridge above Searsville L Comment
  UC1119937  Symphoricarpos albus var. laevigatus G. E. Sindel 1935-8-2 320 San Mateo Harrington Creek; Santa Cruz Quad. 274 Comment
  CAS-BOT-BC237060  Symphoricarpos mollis Ned Cahill 1974-5-13 274 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  RSA152231  Symphoricarpos mollis I. L. Wiggins 1925-04 1651 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  CAS-BOT-BC344896  Symphyotrichum chilense Peter Rubtzoff; Roman Gankin 1975-9-11 8377 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains Comment
  CAS-BOT-BC99064  Symphyotrichum chilense Peter Rubtzoff 1975-10-4 8416 San Mateo San Bruno Mountain - on ridge northwest of Fog Forest Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  SD39526  Taraxia ovata Edith A. Purer 1933-4-18 3623 San Mateo Woodside Road. Comment
  UCSB11176  Taraxia ovata Connelly, Dianne 1962-4-21 San Mateo above main office of Westhorough homes development; 10 miles north of San Francisco on Highway 5 121 Comment
  JROH366  Tauschia hartwegii John H. Thomas 1970-4-4 15540 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake Comment
  JROH370  Tauschia hartwegii John Hunter Thomas 1980-4-24 19897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  UCR122916  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2001-6-2 6786 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC447486  Tellima grandiflora J. P. Moore 1878-4-26 s.n. San Mateo Lagunitis Creek Comment
  UC766175  Tetragonia tetragonoides R. F. Hoover 1941-2-12 4754 San Mateo Half Moon Bay Comment
  CAS-BOT-BC438264  Tetragonia tetragonoides Ira L. Wiggins 1935-8-24 8161 San Mateo At Moss Beach Comment
  CAS-BOT-BC438267  Tetragonia tetragonoides Walter Knight; Irja Knight 1965-4-24 1081 San Mateo San Bruno Mountain. Near dumps at west end of mt. Comment
  UCR51661  Thalictrum fendleri R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  JROH3506  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  JROH3512  Thalictrum fendleri var. polycarpum John Hunter Thomas 1981-4-21 20463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5910  Thalictrum fendleri var. polycarpum L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail between Escobar Gate and the weather station. Comment
  CAS-BOT-BC399841  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399851  Thalictrum polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC399845  Thalictrum polycarpum W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Northwest of San Andreas Reservoir Comment
  POM20351  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake. Comment
  UCD93350  Thinopyrum ponticum John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda, Star Route 1. Comment
  CAS-BOT-BC66657  Thysanocarpus curvipes John H. Thomas 1967-4-28 12719 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10482096  Thysanocarpus curvipes Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  RSA17959  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 722 San Mateo Islam Camp near La Honda. Santa Cruz Mts. Comment
  SD27906  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 San Mateo Islam Camp, near La Honda, Santa Cruz Mts. Comment
  JROH400  Torilis nodosa John Hunter Thomas 1988-4-28 24416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  JROH4758  Toxicoscordion fremontii John H. Thomas 1973-4-14 16553 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10559  Toxicoscordion fremontii W. J. Cervenka 1962-2-2 San Mateo S end of Portofino Dr, San Carlos Comment
  UCSB9321  Tragopogon porrifolius J. R. Haller 1950-4-26 193 San Mateo collected in the hillside W of Fraternity Row, in U C S U C S Comment
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  RSA116717  Trientalis latifolia E. W. Rust 1907-4-13 s.n. San Mateo Los Traucos Creek. Comment
  UCSC010360  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  SEINET11173447 Image available Trifolium albopurpureum A. A. Heller 1907-5-23 8554 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC33493  Trifolium albopurpureum var. dichotomum Mr. E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  SJSU15224  Trifolium angustifolium Toni Corelli 2010-6-1 640 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 22 Comment
  JROH2238  Trifolium barbigerum John H. Thomas 1961-4-29 9176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2240  Trifolium barbigerum John H. Thomas 1974-4-19 17162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2250  Trifolium bifidum var. decipiens John H. Thomas 1958-5-10 7144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UC725794  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo near San Mateo (on Half Moon Bay Rd) Comment
  UC16447  Trifolium ciliolatum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC631216  Trifolium depauperatum var. amplectens P. B. Kennedy 1928-5-2 10099 San Mateo e Daly City (hills) Comment
  JROH2232  Trifolium dichotomum John H. Thomas 1967-5-10 12845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2297  Trifolium fucatum John Hunter Thomas 1981-4-29 20511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1130024  Trifolium fucatum H. S. Yates 1935-5-8 5226 San Mateo 1 mi e Franklin Point; Santa Crus quad 15 Comment
  UC866776  Trifolium fucatum Alice Eastwood 1915-6-13 4720 San Mateo Granada Comment
  JROH2307  Trifolium fucatum John Hunter Thomas 1990-4-14 24807 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  UCSC003519  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 1946 San Mateo On bluff at San Gregorio State Beach Comment
  JROH5960  Trifolium glomeratum John Rawlings 2017-5-30 2086 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road B at edge of oak scrub, 81 Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC575704  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  JROH2339  Trifolium microdon John H. Thomas 1964-4-19 10316 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  POM278622  Trifolium oliganthum Lyman D. Benson 1935-5-5 6525 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  UCSC006098  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  JROH2374  Trifolium variegatum John H. Thomas 1956-4-7 5605 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6422  Trifolium variegatum var. melananthum D. D. Keck 1434 San Mateo Burlingame 2 Comment
  JROH2394  Trifolium willdenovii John H. Thomas 1955-5-6 5008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2395  Trifolium willdenovii John H. Thomas 1958-5-10 7146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2407  Trifolium willdenovii John Hunter Thomas 1981-4-23 20475 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18210  Trifolium willdenovii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  UCSC008228  Trifolium willdenovii Randall Morgan 1995-6-22 2799 San Mateo Water Tank Creek near its confluence with Pescadero Creek Comment
  UC204176  Trifolium wormskioldii A. D. E. Elmer May 1903 4644 San Mateo Lake San Andreas Comment
  UC764667  Trifolium wormskioldii R. F. Hoover 1939-4-21 4056 San Mateo 2 mi s Colma Comment
  POM126713  Trifolium wormskioldii R. L. Pendleton 1907-4-20 592 San Mateo Lake Merced. 30 Comment
  CHSC25136  Trillium chloropetalum R. N. Bowman 1971-4-5 4 San Mateo Ca. 1.6 mi. E. of Hwy. 1 on Gazos Creek rd., ca. 5 yards down wooded embankment along S. side of rd. 18 Comment
  JROH4724  Trillium chloropetalum John H. Thomas 1971-4-3 15747 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  UC4021  Trillium chloropetalum Michener and Bioletti Mar 1893 4 San Mateo near Colma Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  SD27763  Trillium chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo About 2 miles back of Stanford University. 60 Comment
  POM290752  Trillium chloropetalum var. giganteum Lyman Benson 1929-3-2 989 San Mateo Hill above Lake Searsville. Comment
  CAS-BOT-BC521061  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-26 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC521065  Trillium chloropetalum var. giganteum Walter & Irja Knight 1965-3-21 996 San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521070  Trillium chloropetalum var. giganteum C. F. Leithold 1894-2-24 s.n. San Mateo Santa Cruz Peninsula: Woodside Hills Comment
  UC202804  Trillium ovatum A. D. E. Elmer April, 1903 4752 San Mateo Portola Comment
  CAS-BOT-BC133428  Trillium ovatum W. R. Dudley 1896-3-26 s.n. San Mateo Purisima Creek above King's Comment
  POM170135  Trillium ovatum Stewart H. Burnham 1894-2-24 10517 San Mateo Summit Springs. Comment
  CAS-BOT-BC238555  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  CAS-BOT-BC238564  Triphysaria floribunda W. R. Dudley 1899-5-14 s.n. San Mateo The Santa Cruz Peninsula. Baden Comment
  CAS-BOT-BC238567  Triphysaria floribunda George Oberlander 1951-3-30 1182 San Mateo San Francisco Watershed Reserve Comment
  UC1012338  Triphysaria floribunda F. W. Pennell and D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 mi w Burlingame 152 Comment
  JROH4133  Triphysaria pusilla John H. Thomas 1957-4-16 6660 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  SEINET7097919  Triphysaria versicolor 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
  CAS-BOT-BC200077  Trisetum canescens Dean Wm. Taylor 1988-3-30 9476 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest 176 Comment
  JROH5467  Trisetum canescens John Rawlings 2008-5-4 1038 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, creekside, a few meters east of first redwood grove. 81 Comment
  JROH4739  Triteleia hyacinthina John Hunter Thomas 1978-5-12 19201 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM276953  Triteleia hyacinthina Lyman Benson 1930-5-3 2111 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  SEINET182864 Image available Triteleia hyacinthina John Campbell 1925-4-12 San Mateo Burlingame Comment
  CAS-BOT-BC523100  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and King's Mountain Comment
  CAS-BOT-BC526102  Triteleia ixioides subsp. ixioides Josephine D. Randall 1907-6-8 233 San Mateo Santa Cruz Peninsula, Portola Valley Comment
  UCR156579  Triteleia ixioides var. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay watershed, Santa Cruz Mountain Range, South Spring Rd., Woodside 500 Comment
  JROH4748  Triteleia laxa John H. Thomas 1973-4-14 16551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526358  Triteleia laxa H. A. Dutton 1900-3-25 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  UCSB17660  Triteleia laxa Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC74053  Turritis glabra John F. Emmel 1971-4-24 344 San Mateo 0.25 mile southwest of Natalie M. Lipman School, south edge of Guadalupe Valley, west edge of Brisbane. 60 Comment
  JROH5533  Typha angustifolia John H. Thomas 1967-5-31 12928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC241806  Typha latifolia Herbert L. Mason 1949-7-7 14032 San Mateo mouth of Pescadero Creek Comment
  RSA10363  Typha latifolia H. A. Barker 1926-6-1 595 San Mateo Along the Peninsula. Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace Comment
  RSA563837  Ulex europaeus Don Pendleton 1993-10-28 s.n. San Mateo San Bruno Mountain State/County Park, 0.3 mi. E. of the park gate/parking lot on Guadalupe Canyon Park. 300 Comment
  SBBG103948  Ulex europaeus D. Pendleton 1993-10-28 San Mateo San Bruno Mtn Park, 0.3 mi E of the park gate/parking lot on Guadalupe Cyn Parkway Comment
  JROH4223  Ulmus minor John Hunter Thomas 1989-5-11 24737 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge over two parts of lake Comment
  RSA176662  Umbellularia californica P. H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo Comment
  SEINET3559461 Image available Umbellularia californica Lewis S. Rose 1934-2-12 34028 San Mateo Burlingame. Comment
  UC36687  Uropappus lindleyi Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  UC517991  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  CAS-BOT-BC403967  Urtica dioica subsp. gracilis Peter H. Raven 1950-4-30 1979 San Mateo In the Montara Mts. ca. 1/2 mile N. of Montara 91 Comment
  CAS-BOT-BC404024  Urtica dioica subsp. holosericea George Oberlander 1950-4-16 696 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  CAS-BOT-BC404027  Urtica dioica subsp. holosericea Walter Knight; Irja Knight 1964-9-2 725 San Mateo San Bruno Mountain. In Buckeye Canyon Comment
  JEPS43426  Urtica urens W. L. Jepson 1921-4-3 9105 San Mateo Colma, Colma Canyon Colma Canyon; Colma, Colma Canyon Comment
  CAS-BOT-BC412535  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  UC1302442  Vaccinium cespitosum Robert F. Thorne and P. Everett 1963-6-9 32214 San Mateo near TV tower on San Bruno Mountain; Kamchatka Point 335 Comment
  CAS-BOT-BC199348  Vaccinium ovatum John Thomas Howell 1924-2-23 258 San Mateo King Mountain Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC228837  Vaccinium ovatum Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1939 San Mateo San Bruno State Park, SE section of Ridge Trail; NE-facing slope near the summit 357 Comment
  POM176866  Vaccinium ovatum James I. McMurphy 1906-5-20 79 San Mateo Kings Mountain, Santa Cruz Mts. 457 Comment
  SBBG33994  Vaccinium ovatum L. S. Rose 1969-3-27 San Mateo Kings Mtn Rd, 4 mi W of Woodside 304 Comment
  CAS-BOT-BC199468  Vaccinium parvifolium W. R. Dudley 1901-12-31 s.n. San Mateo Gazos Creek Comment
  RSA95474  Vancouveria planipetala L. S. Rose 1954-5-17 54046 San Mateo Kings Mountain. 610 Comment
  SEINET3381842 Image available Velaea kelloggii Lewis S. Rose 1939-5-5 s.n. San Mateo San Mateo Canyon. 46 Comment
  HSC24033  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 167 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  JROH4273  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH4283  Verbena lasiostachys var. scabrida John Hunter Thomas 1986-6-7 24081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306773  Verbena lasiostachys var. scabrida A. D. E. Elmer July, 1903 4950 San Mateo Crystal Springs Lake Comment
  POM15417  Veronica americana Copeland 1903-6-16 s.n. San Mateo Montara Pt. [county not specified] Comment
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Jun 10 2012
  UC563965  Veronica americana Ira L. Wiggins 1935-8-24 8162 San Mateo entering bay at Moss Beach Moss Beach Comment
  UC74933  Veronica americana Copeland 1903-6-16 3318 San Mateo Montara Point Comment
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Jun 10 2012
  UC1252125  Veronica filiformis Mrs. M. C. O'Neil Jr. 1964-5-7 San Mateo 3805 Fernwood Street, San Mateo San Mateo; 3805 Fernwood Street, San Mateo Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  RSA152232  Vicia americana var. americana I. L. Wiggins 1925-04 1655 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  RSA34061  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Lake Merced Comment
  UCD108698  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Near Lake Merced. Comment
  RSA101016  Vicia gigantea G. Oberlander 1950-5-28 968 San Mateo Cahill Ridge, San Francisco Watershed Reserve 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
  SJSU1012  Vicia sativa subsp. nigra J. E. Hagerty 1950-5-16 San Mateo Stanford Village Comment
  JROH2442  Vicia sativa subsp. sativa John H. Thomas 1973-6-10 16825 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH5883  Vinca major J. C. Gaither Jr. 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate. Comment
  SBBG50995  Vinca major J. Doty 1969-3-27 611 San Mateo W side of State Hwy 1, ca. 4 mi N of San Gregorio State Beach Park 30 Comment
  CAS-BOT-BC264037  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Near Pebble Beach, Pescadero Comment
  CAS-BOT-BC264049  Viola adunca Robert Robertson 1954-5-1 121 San Mateo At Pebble Beach 9 Comment
  RSA130698  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mtns vicinity of South Peak. 503 Comment
  RSA130984  Viola glabella M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  UC1206455  Viola glabella Brannan and Kellogg 1870-5-31 San Mateo San Gregorio Comment
  UC1300826  Viola glabella Helen K. Sharsmith 1963-3-23 5250 San Mateo Alpine Creek Canyon; San Francisco Bay Region, Santa Cruz Mountains 243 Comment
  UC581528  Viola glabella Herbert L. Mason 1937-4-23 3627 San Mateo La Honda. Comment
  CAS-BOT-BC536833  Viola glabella Roxana S. Ferris 1920-4-26 1961 San Mateo Santa Cruz Mountain Peninsula: near mouth of canon of Pescadero Crek 243 Comment
  SEINET9251817  Viola glabella R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, along HWY 84. Comment
  POM190256  Viola ocellata D. D. Keck 1932-6-1 1495 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  POM286591  Viola ocellata Lyman D. Benson 1931-2-28 2617 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo King's Mountain Road Comment
  SD38905  Viola ocellata Marie Cummings 1933-4-27 2150 San Mateo Kings Mt. Comment
  SJSU7493  Viola pedunculata Lewis S. Rose 1968-3-26 68010 San Mateo S base San Bruno Mt, S San Francisco 30 Comment
  UCSB22900  Viola sempervirens Simpson, C. 1967-3-21 San Mateo Along Butano Creek, Butano Canyon, 3.7 mi. east of junction of Clovedale Rd. and Canyon Rd 131 Comment