Search Results — 2000 specimen records retrieved (1349 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  UCSC007714  Abronia latifolia Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  CAS-BOT-BC219611  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  UC55135  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  RSA131008  Acer macrophyllum Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  JROH167  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  CAS-BOT-BC336920  Acer negundo var. californicum George Oberlander 1949-4-30 117 San Mateo San Francisco Watershed Reserve, east boundry Comment
  JEPS121480  Achillea millefolium Adam C. Schneider with C. Matt Guilliams 2013-4-7 94 San Mateo Crystal Springs Reservoir Comment
  JROH442  Achillea millefolium John H. Thomas 1967-5-31 12934 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  JROH452  Achillea millefolium John Hunter Thomas 1987-5-5 24246 San Mateo Jasper Ridge Biological Preserve, Stanford University 113 Comment
  UCSB22461  Achillea millefolium 1964-3-24 San Mateo About 8/10 of a mile off Skyline Blvd. along Sawyer Camp Road, the entrance off Millbrae Ave., around Crystal Spring Lake 106 Comment
Read comments
Sep 9 2011
  UCSB8055  Achillea millefolium Myrick, Donald 1966-6-1 San Mateo Off Highway 1 south of San Francisco near Pescadero Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  JROH469  Achyrachaena mollis John Hunter Thomas 1981-5-8 20561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2055  Acmispon americanus var. americanus John H. Thomas 1971-5-30 15962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37934  Acmispon brachycarpus Cummings, McCallum 1933-5-10 3697 San Mateo Hill on back of of Stanford campus. Comment
  OBI12973  Acmispon glaber var. glaber Robert F. Hoover 1964-9-10 9290 San Mateo Devil's slide, between Pedro-Point and Montara Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1125857  Actaea rubra G. E. Sindel 1935-7-29 314 San Mateo El Corte de Madera Santa Cruz Quad., El Corte de Madera Comment
  RSA176544  Actaea rubra subsp. arguta John H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 610 Comment
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  POM204319  Adenocaulon bicolor I. L. Wiggins 1929-7-4 3773 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  JROH86  Adiantum aleuticum Lawrence J. Winship 1974-11-16 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  UC42051  Adiantum aleuticum F. P. McLean 1873-1 San Mateo Pescadero Comment
  JROH94  Adiantum jordanii John Hunter Thomas 1985-4-22 23549 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC29514  Agoseris Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, summit at Power Line Ridge Comment
  SEINET7076092  Agoseris apargioides var. eastwoodiae A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  JROH5952  Agoseris heterophylla John Rawlings 2017-4-3 2014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5 serpentine prairie up-slope from trail 122 Comment
  CAS-BOT-BC46173  Agoseris heterophylla John H. Thomas 1971-5-2 15816 San Mateo Near intersection of Canada Road and Edgewater [sic]Road, about three miles westward from Redwood City 152 Comment
  RSA18497  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 623 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC15242  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Cemeteries Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15233  Agoseris hirsuta W. R. Dudley 1895-12-14 s.n. San Mateo La Honda Road, at top of mountain Comment
  CAS-BOT-BC15244  Agoseris hirsuta W. R. Dudley 1893-7-1 s.n. San Mateo Stanford Campus Comment
  JROH4772  Agrostis avenacea John Hunter Thomas 1980-9-27 20197 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach area in weeds near water's edge 120 Comment
  JROH4776  Agrostis avenacea John Hunter Thomas 1982-11-6 21211 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake 113 Comment
  UCR198062  Agrostis californica Beecher Crampton 1962-6-11 6489 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  JROH4778  Agrostis capillaris John Rawlings 2008-6-25 1044 San Mateo Jasper Ridge Biological Preserve, Stanford University; seven yards from paved road in middle of the blocked-off dirt path leading to Causeway Bridge 105 Comment
  SJSU15804  Agrostis densiflora Toni Corelli 2015-5-3 1192 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  SJSU15815  Agrostis densiflora John Rawlings, Toni Corelli 2016-5-13 1898 San Mateo Bean Hollow State Beach south bluff above beach 11 Comment
  CAS-BOT-BC127379  Agrostis exarata A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach near Pescadero. 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
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JEPS100764  Agrostis exarata Dean W. Taylor 2000-4-25 17457 San Mateo Montara Mountain (on Montara State Beach), along dirt road 1 mile west from North Peak 411 Comment
  JROH5649  Agrostis exarata John Rawlings 2014-5-28 12461246 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry creek bed of San Francisquito Creek at the Dennis Martin site. 71 Comment
  SJSU15956  Agrostis exarata John Rawlings, Ken Hickman 2016-5-26 1833 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC139722  Agrostis gigantea John H. Thomas 1960-6-25 8798 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 7 Comment
  CAS-BOT-BC139460  Agrostis hallii Elizabeth McClintock; Paul Reeberg 1989-5-31 s.n. San Mateo San Bruno Mountains. In the East Saddle Area. 198 Comment
  CAS-BOT-BC139462  Agrostis hallii Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. 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
  CAS-BOT-BC138951  Agrostis pallens W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge. Comment
  CAS-BOT-BC138952  Agrostis pallens Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Quarry Road. Comment
  RSA457455  Agrostis pallens Lyman Benson 1937-6-24 8390 a San Mateo Coal Mine Ridge. South of Stanford University. 396 Comment
Read comments
Aug 8 2011
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JROH4823  Aira caryophyllea John H. Thomas 1958-5-10 7153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4827  Aira caryophyllea John H. Thomas 1976-4-30 18104 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam 118 Comment
  UC1108514  Aira caryophyllea H. L. Mason 1921-5-29 San Mateo roadside near Arroyo de los Frijoles Comment
  CAS-BOT-BC445394  Alisma plantago-aquatica John Thomas Howell 1926-10-9 2219 San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC447499  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Standford University Comment
  RSA310964  Allium dichlamydeum Robert F. Thorne, Percy C. Everett 1963-6-9 32236 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH4561  Allium peninsulare var. franciscanum Toni Corelli 2003-5-28 259 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
  JROH4564  Allium peninsulare var. franciscanum John H. Thomas 1968-5-22 14461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM169411  Allium peninsulare var. franciscanum C. F. Baker 1902-5-10 809 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC474304  Allium unifolium George Oberlander 1950-4-16 663 San Mateo Cahill Ridge Comment
  SEINET12036414  Alnus rhombifolia Unknown 1932-10-17 7297 San Mateo near Searsville Lake Comment
  CAS-BOT-BC169339  Alnus rubra J. W. Gillespie 1925-4-18 s.n. San Mateo Ano [Ano] Nuevo Pt. Comment
  CAS-BOT-BC169340  Alnus rubra L. R. Abrams 1907-8-1 s.n. San Mateo near Pescadero on road to Half Moon Bay. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC169341  Alnus rubra John H. Thomas 1965-11-26 11456 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  CAS-BOT-BC169357  Alnus rubra W. R. Dudley 1902-12-31 s.n. San Mateo Along Gazos Creek Comment
  RSA177003  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  UC135837  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville Comment
  POM223661  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  CAS-BOT-BC44930  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton sand dunes 6 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  SD39995  Ambrosia chamissonis Edith A. Purer 1933-7-27 5352 San Mateo Near strand at Pigeon Point on low sand dunes Comment
  CAS-BOT-BC55528  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake Comment
  CAS-BOT-BC55526  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Springs Reservoir Comment
  RSA116659  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo Plants of the Santa Cruz Mountain Peninsula. On caushway [?] over Crystal Springs Reservoir. Comment
  UC204200  Amelanchier utahensis A. D. E. Elmer May 1903 4659 San Mateo Slate's Creek Comment
  SD41374  Ammophila arenaria Edith A. Purer 1932-7-18 4023 San Mateo Near Pigeon Point, sandy area. Comment
  UC1220416  Amsinckia lunaris Jerry Powell 1963-5-3 356 San Mateo s and se facing slopes San Bruno Mountain (north tank hill) Comment
  JROH1354  Amsinckia menziesii John Hunter Thomas 1987-5-15 24281 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA0089968  Amsinckia retrorsa Arthur L. Cohen 1935-4-21 622 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA0091061  Amsinckia spectabilis John H. Thomas 1961-5-13 9337 San Mateo Franklin Point. Comment
  UCD117431  Anagallis arvensis Richard W. Cleveland 1951-4-28 37 San Mateo 2.2 miles south of Pescadero. Comment
  CAS-BOT-BC344839  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JEPS20539  Anaphalis margaritacea L. M. Newlon 1921-1-1 241 San Mateo bluffs between Mussel Rock and Salada Beach; Sharp Park Comment
  POM204322  Anaphalis margaritacea I. L. Wiggins 1929-7-4 3784 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC1125507  Anaphalis margaritacea T. Tyrrell 1928-9-26 10 San Mateo Pomponio Creek; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC45189  Anaphalis margaritacea R. E. Frenkel 1964-8-21 754 San Mateo On Spring Valley Ridge Road at the junction of Spring Valley Ridge and Whiting Ridge Roads, SFWD. 347 Comment
  CAS-BOT-BC45267  Ancistrocarphus filagineus LeRoy Abrams 1904-4-10 s.n. San Mateo Woodside to Crystla Springs at the junction of Redwood Rd. Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC221456  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  UC830895  Anisocarpus madioides Lewis S. Rose 1941-7-2 41287 San Mateo Kings Mountain 548 Comment
  CAS-BOT-BC102287  Anthemis cotula Peter Rubtzoff; Patricia Fallon 1987-8-26 9839 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe Canyon. Comment
  CAS-BOT-BC102290  Anthemis cotula Saichi Kawahara 1968-7-29 458 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC102291  Anthemis cotula George Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek Comment
  CAS-BOT-BC102292  Anthemis cotula W. R. Dudley 1893-6-8 s.n. San Mateo Near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC344841  Anthemis cotula Peter Rubtzoff s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  CAS-BOT-BC280651  Anthoxanthum occidentale R. E. Frenkel 1964-3-8 395 San Mateo On Starr Hill Road, 1.0 mile west of Kings Mountain Stables 518 Comment
  JROH195  Anthriscus caucalis Richard L. Garber 1971-5-11 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454476  Aphanes occidentalis John H. Thomas 1974-4-11 17125 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC454488  Aphanes occidentalis George Oberlander 1950-3-11 448 San Mateo Grassland, Sweeney Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC454495  Aphanes occidentalis H. A. Dutton 1900-3-11 s.n. San Mateo Woodside serpentine, Santa Cruz Pennisula Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC392066  Aquilegia eximia W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Southeast of Crystal Springs Lake Comment
  CAS-BOT-BC405895  Aquilegia formosa Walter Knight; Irja Knight 1965-4-4 1009 San Mateo Bitter-cherry Ravine on north facing slope in chaparral. Comment
  CHSC57095  Aquilegia formosa var. truncata Steven Triano 1988-5-24 206 San Mateo Along S side of Old La Honda Road ca 0.3 mi E of its jct. With La Honda Road. 365 Comment
  POM150408  Aquilegia formosa var. truncata C. F. Baker 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  RSA523415  Aquilegia formosa var. truncata G. H. True 1936-4-5 388 San Mateo Canyon between San Gregorio and Pescadero 152 Comment
  CAS-BOT-BC17317  Arabis blepharophylla Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC17323  Arabis blepharophylla Javier Penalosa 1963-2-23 2654 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  JROH1436  Arabis blepharophylla John Hunter Thomas 1984-4-2 23273 3 G 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
  SJSU8506  Arabis blepharophylla P. F. Canziani 1979-3-2 San Mateo canyon NW of intersection of Hillside Blvd & Chestnut Ave, San Bruno Mt Comment
  HSC23993  Arbutus menziesii Mary Katherine Wicksten 1971-7-1 145 San Mateo Huddart Park. Dry slope by park office Comment
  JROH1916  Arbutus menziesii John H. Thomas 1959-4-5 7665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1918  Arbutus menziesii John H. Thomas 1967-6-1 12983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24199  Arctostaphylos andersonii W. R. Dudley 1897-12-29 s.n. San Mateo On Butano, Pescadero Ridge. Comment
  LA42267  Arctostaphylos andersonii E. C. Sutliffe; 1934-2-2 sn San Mateo Kings Mountain Comment
  POM367229  Arctostaphylos andersonii L. H. Jones 1909-3-13 s.n. San Mateo Summit of Kings Mountain, Stanford University. 731 Comment
Read comments
Sep 22 2011
  SBBG25382  Arctostaphylos andersonii R. Gankin 1959-3-22 324 San Mateo King's Mtn Rd, 1.2 mi E of jct with St Hwy 5, ca. 5 mi W of Woodside Comment
  SEINET12001640  Arctostaphylos andersonii W. R. Dudley 1906-1 5 San Mateo Kings Mt., Santa Cruz Range, Santa Cruz Peninsula 610 Comment
  SEINET11987248  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3903 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  CAS-BOT-BC23512  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  CAS-BOT-BC23514  Arctostaphylos crustacea John Thomas Howell 1931-1-18 5725 San Mateo King Mt. Comment
  SEINET5788098 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain, CA Comment
  SEINET11988252  Arctostaphylos crustacea Unknown 1959-1 322 San Mateo 2.8 mi from junction Ca 5 on King's Mountain Rd Comment
  SEINET8729914 Image available Arctostaphylos crustacea L. S. Rose 1942-1 42007 San Mateo Kings Mountain 600 Comment
  JROH1944  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  RSA681641  Arctostaphylos edmundsii Annuschka Deb 1989-1-27 17 -a San Mateo Woodside. Comment
Read comments
Dec 6 2014
  SEINET11988210  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4421 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 104 Comment
  CAS-BOT-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  HSC7758  Arctostaphylos imbricata L. S. Rose 1964-4-24 64022 San Mateo San Bruno Hills 335 Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  JEPS108597  Arctostaphylos montaraensis R. Raiche 1984-1-27 San Mateo Montara Mountain Comment
  JEPS88613  Arctostaphylos montaraensis J. Roof 1966-3-27 San Mateo Pacific Ridge San Bruno Mt. 358 Comment
  SEINET11989280  Arctostaphylos montaraensis R. Gankin, Hildreth, W. R. 1966-1 738 San Mateo Montara Mountain Comment
  SEINET11989284  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4446 San Mateo Pacific Rock area, San Bruno Mt 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
  RSA0042504  Arctostaphylos pacifica Gary D. Wallace 1975-12-26 1517 San Mateo San Bruno Mountains, east slope, near parking lot at top of Radio Road. 396 Comment
  POM131773  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain. West side of King's Mountain. Comment
  RSA636741  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24632 San Mateo NW side of Montara Mtn. 150 Comment
  SBBG39533  Arctostaphylos regismontana L. S. Rose 1970-1-30 70001 San Mateo King's Mtn, Santa Cruz Mtns 609 Comment
  UC549743  Arctostaphylos regismontana J. E. Adams 1935-4-7 1044 San Mateo Skyline Blvd. Comment
  RSA380889  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. .4 mile northeast of Peak Mountain of Montara Mountain range. 488 Comment
  RSA381043  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road. Comment
  RSA636849  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24647 San Mateo NW side of Montara Mtn. 150 Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  CAS-BOT-BC46837  Arctostaphylos uva-ursi Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Few hundred yards up Cable Ravine Comment
  SBBG21954  Arctostaphylos uva-ursi R. F. Thorne with P. C. Everett 1963-6-9 32218 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  UCD52149  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4494 San Mateo Kamchatka Point, San Bruno Mountain. San Mateo County. 320 Comment
  UCD52151  Arctostaphylos uva-ursi Walter and Irja Knight; Robert and Janet Blomquist 1981-7-3 4426 San Mateo Kamchatka Point, San Bruno Mt., San Mateo County, California. Comment
  SEINET11987331  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  SEINET11987327  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., ca 200 yds E of shack Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  SEINET11989211  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4630 San Mateo windy Kamchatka Point, San Bruno Mountain Comment
  POM305424  Armeria maritima subsp. californica Henry J. Ramsey, Henry J. Ramsey 1939-10-7 747 San Mateo San Mateo Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA6284  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  RSA17888  Artemisia douglasiana C. B. Wolf 1927-7-29 s.n. San Mateo Summit La Honda Grade Comment
  CAS-BOT-BC93639  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  RSA17886  Artemisia pycnocephala C. B. Wolf 1927-6-29 s.n. San Mateo Lake Lucerne' S. of Pescadero Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  POM57738  Aster chilensis B. Greene 1901-10-20 50 San Mateo Summit of Coast Range 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
  SEINET946262  Asteraceae L. S. Rose 1948-1 48235 San Mateo Hills W. of Belmont 183 Comment
  CAS-BOT-BC186759  Astragalus gambelianus Margaret A. Barry 1937-5-8 60 San Mateo On Coal Mine Ridge Comment
  JROH1985  Astragalus gambelianus John H. Thomas 1956-4-7 5614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1990  Astragalus gambelianus John H. Thomas 1968-5-3 14448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  SD87780  Astragalus menziesii Frank W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach, in detritus at the foot of cliffs at sea level Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  RSA18446  Astragalus nuttallii C. B. Wolf 1927-6-29 s.n. San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC177969  Astragalus nuttallii var. virgatus W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC177971  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  CAS-BOT-BC194432  Astragalus nuttallii var. virgatus Phillip C. Wheeler 1965-6-20 s.n. San Mateo Great Meadow adjacent to Radio Road, San Bruno Mountain Comment
  SEINET10775828  Astragalus pycnostachyus Robert V. Bradshaw 1921-9-5 Bradshaw 2234 San Mateo San Gregorio. Comment
  CAS-BOT-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC193092  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  RSA294164  Astragalus pycnostachyus var. pycnostachyus Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4225 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  UC13465  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 San Mateo San Gregorio <?> Comment
  CAS-BOT-BC68676  Athyrium filix-femina var. californicum Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain - Crocker Avenue Comment
  CAS-BOT-BC68678  Athyrium filix-femina var. californicum Elizabeth McClintock; Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 s.n. San Mateo San Bruno Mountain - Near old quarry at mouth of Colma Canyon. Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  POM195304  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara. Comment
  SD40192  Atriplex leucophylla Edith A. Purer 1932-7-18 4013 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC146123  Avena barbata Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry. Comment
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  RSA17941  Avena barbata C. B. Wolf, Le Roy Abrams 1927-4-6 s.n. San Mateo So. of San Gregoris. Comment
  SEINET3919671  Avena fatua var. glabrata K. Allred 1975-1-3 1269 San Mateo Half Moon Bay. Along access road to Dune Beach.; 0 Comment
  CAS-BOT-BC98695  Baccharis douglasii Josephine D. Randall 1907-7-23 57 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  RSA176408  Baccharis douglasii John H. Thomas 1964-10-2 10513 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  JROH537  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC99515  Baccharis pilularis A. D. E. Elmer 1903-2-1 4576 San Mateo Portola Comment
  CAS-BOT-BC99535  Baccharis pilularis Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM54355  Baccharis pilularis A. D. E. Elmer 1903-02 4576 San Mateo Portola Comment
  POM56595  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point. Comment
  UC484307  Baccharis pilularis Carl B. Wolf 1930-11-5 San Mateo 4 mi s Pescadero 7 Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
Read comments
Feb 2 2012
  CAS-BOT-BC16635  Barbarea orthoceras Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  JROH1438  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16641  Barbarea orthoceras R. E. Frenkel 1964-4-2 417 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road. 347 Comment
  CHSC56593  Bellardia trixago Steven Triano 1988-5-24 174 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH3926  Bellardia trixago John Hunter Thomas 1987-5-19 24291 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SD227899  Bellardia trixago G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  CDA6266  Bellardia trixago T. C. Fuller 1967-6-13 15944 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  SJSU946  Berberis darwinii W. M. Bybee 1948-2-20 San Mateo grounds of residence, Burlingame Comment
  CAS-BOT-BC75663  Berberis nervosa Paul Arnaud 1941-6-5 s.n. San Mateo Redwood City, Woodrow Street. Comment
  RSA681564  Berberis nevinii Annuschka Deb 1989-7-14 287 San Mateo YBN Demonstration Garden. (Yerba Buena Nursery) Comment
  CAS-BOT-BC100316  Blennosperma nanum var. robustum Walter Knight; Irja Knight 1965-4-25 1043 San Mateo Owl's Canyon Comment
  JROH4420  Bolboschoenus maritimus subsp. paludosus John Hunter Thomas 1988-6-2 24494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Beach area Comment
  CAS-BOT-BC95346  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  CAS-BOT-BC95348  Bowlesia incana Ned Cahill 1975-1-8 391 San Mateo Near jct. of Canada and Edgewood roads, about 3 mi. W of Redwood City Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CHSC91953  Brachypodium sylvaticum K. Melo 2003-12-1 1387519 San Mateo San Francisco Peninsula. Hwy 84 at Grandview Terrace and Schilling lake. Martin Creek drainage. Comment
  CAS-BOT-BC28047  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-2-4 s.n. San Mateo San Bruno Mountains. Near horse corral, off Bayshore. Comment
  CAS-BOT-BC36792  Brassica rapa J. H. Thomas 1949-10-16 1143 San Mateo Just north of outlet of San Gregorio Creek. Comment
  CAS-BOT-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1462  Brassica rapa John H. Thomas 1972-4-1 16046 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1468  Brassica rapa John Hunter Thomas 1980-4-10 19866 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1466  Brassica rapa John Hunter Thomas 1978-5-23 19221 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC145326  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. 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-BC145338  Briza minor Phillip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountains. Pig Ranch Ravine. Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  SBBG459  Briza minor A. A. Beetle 1941-4-20 1739 San Mateo near San Carlos Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame 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
  JROH4582  Brodiaea elegans subsp. elegans John H. Thomas 1976-5-26 18157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484353  Brodiaea elegans subsp. elegans Eric Walttier 1919-6-9 s.n. San Mateo Woodside Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4588  Brodiaea terrestris subsp. terrestris John H. Thomas 1956-4-7 5624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  SJSU9943  Brodiaea terrestris subsp. terrestris J. R. Verbarg 1955-5-14 44 San Mateo Crystal Springs Hills Comment
  UC1442900  Brodiaea terrestris subsp. terrestris Theodore F. Niehaus 1965-3-23 364 San Mateo e of Crystal Springs (100 yards e of San Mateo Juvenile Probation Center) Comment
  CAS-BOT-BC483179  Brodiaea terrestris subsp. terrestris W. R. Dudley 1894-4-21 s.n. San Mateo Near dam, San Mateo, Santa Cruz Peninsula Comment
  CAS-BOT-BC483180  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  RSA212158  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo. 122 Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCD58280  Bromus carinatus Elizabeth Wilson 1940-6-19 s.n. San Mateo Woodside Mountains. Comment
  CAS-BOT-BC148978  Bromus carinatus var. carinatus John Thomas Howell 1960-4-20 35210 A San Mateo In garden of Frances Payne Stickney, Hillcrest Road, San Mateo. Comment
  CAS-BOT-BC149018  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 329 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 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-BC389767  Bromus carinatus var. marginatus R. D. Hennessey 1964-4-26 60 San Mateo Area where Pilarcitos Creek empties into ocean several hundred yards from shore Comment
  CDA31070  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 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
  RSA120971  Bromus catharticus J. T. Howell 1956-5-23 31446 San Mateo Roadside, El Camino Real at Atherton Ave., Menlo Park. Comment
  UCD58360  Bromus catharticus John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda. Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
Read comments
Feb 18 2015
  CAS-BOT-BC155726  Bromus diandrus Javier Penalosa 1963-3-30 2765 a San Mateo San Bruno Mountains. Guadalupe Valley. 30 Comment
  CAS-BOT-BC227624  Bromus diandrus Peter Rubtzoff 1977-6-21 9068 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  CAS-BOT-BC155139  Bromus hordeaceus Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  CAS-BOT-BC155140  Bromus hordeaceus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  POM286725  Bromus hordeaceus Lyman Benson 1931-4-26 2757 San Mateo Behind Stanford University. Corte Madre Creek. Santa Cruz Mtn. Range Comment
  UCD164700  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD58780  Bromus hordeaceus L. Whitney 1935-3-20 s.n. San Mateo Bayshore Highway--10 miles south of Cliff House, San Francisco. Comment
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Nov 12 2011
  POM285930  Bromus madritensis Lyman Benson 1935-5-5 6544 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JROH4946  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 A San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  JROH4953  Bromus madritensis subsp. rubens John Hunter Thomas 1992-4-23 25160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  JROH4957  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road B near north boundary fence. 78 Comment
  RSA18330  Bromus maritimus C. B. Wolf 1929-5-10 3705 San Mateo coast at Pigeon Pt. So. of Pescadero Comment
  CDA1797  Bromus mollis E. L. Labadie 1941-4-13 San Mateo Bayshore Freeway, Coyote Point. 0 Comment
  CAS-BOT-BC161753  Bromus rubens Ned Cahill 1974-4-30 217 San Mateo Near the inersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC185394  Bromus vulgaris W. R. Dudley 1896-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda. Comment
  JROH4970  Bromus vulgaris W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek trail. Comment
  UC1131105  Bromus vulgaris N. K. Carlson 1935-6-2 76 San Mateo Ridge between Oil Creek and Slate Creek 670 Comment
  UC765079  Cakile edentula R. F. Hoover 1941-2-12 4755 San Mateo Half Moon Bay Comment
  SEINET12004682  Cakile edentula subsp. edentula E. H. Graham 1931-1 6940 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC36953  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36960  Cakile maritima var. maritima W. R. Beutley 1957-5-11 81 San Mateo State Highway #1, 2 miles below Pescadero. 4 Comment
  CAS-BOT-BC185147  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  CAS-BOT-BC185150  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  CAS-BOT-BC185151  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  JROH5602  Calamagrostis rubescens John Rawlings 2014-3-18 1208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near jct of and between trails 5 and 2. 83 Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  JROH3323  Calandrinia ciliata John H. Thomas 1973-3-11 16478 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  CAS-BOT-BC438537  Calandrinia ciliata Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Flower Garden adjacent to April Brook. Comment
  CAS-BOT-BC273256  Calendula officinalis Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountains. Entrance to Olivet Ravine Comment
  JROH1635  Callitriche marginata John H. Thomas 1968-4-13 14290 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1642  Callitriche marginata Paul Heiple 2010-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along side of Rd E 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
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139448  Calochortus albus Adeline Fredericks 1920-4-1 s.n. San Mateo Lake San Andreas. Comment
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  CAS-BOT-BC492217  Calochortus albus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  HSC23997  Calochortus albus Mary Katherine Wicksten 1971-6-16 45 San Mateo Huddart Park, woods near Oak Flat Comment
  JROH4616  Calochortus argillosus John H. Thomas 1960-6-8 8781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC3425  Calochortus luteus Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC491981  Calochortus luteus W. R. Dudley 1894-5-14 342 San Mateo Near Storkfarm, Stanford University Comment
  POM196563  Calochortus luteus W. R. Dudley 1894-5-18 s.n. San Mateo Santa Cruz Peninsula: From Woodside to Crystal Springs Lake Comment
  SD27832  Calochortus maweanus Carl B. Wolf 1929-5-22 3722 San Mateo Santa Cruz Mountains, near base of La Honda Grade. 182 Comment
  RSA6293  Calochortus tolmiei D. D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC496828  Calochortus tolmiei W. R. Dudley 1907-4-27 s.n. San Mateo Kings Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC494045  Calochortus venustus Cherie Wetzel 1969-6-20 860 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  SEINET12044555  Calochortus venustus L. S. Rose 1932-1 32327 San Mateo Redwood City Comment
  CAS-BOT-BC270666  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake 120 Comment
  JROH564  Calycadenia multiglandulosa D. E. Breedlove 1971-5-31 19387 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM263769  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  RSA63100  Calystegia purpurata L. S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  RSA92811  Calystegia purpurata P. H. Raven 1950-4-6 1774 San Mateo Colma Canyon, San Bruno Mts. 183 Comment
  CAS-BOT-BC224667  Calystegia purpurata subsp. purpurata Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Hills, Jefferson Avenue Comment
  CAS-BOT-BC436448  Calystegia subacaulis Ned Cahill 1974-4-18 120 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC224346  Calystegia subacaulis subsp. subacaulis Margaret A. Barry 1937-5-8 57 San Mateo Exposed slopes of Coal Mine Ridge Comment
  UC73521  Calystegia subacaulis subsp. subacaulis Milo S. Baker 1904-5-15 San Mateo near Burlingame; near Burlingame Comment
  CHSC57089  Camissonia cheiranthifolia subsp. suffruticosa Steven Triano 1988-5-24 217 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Light Station. 24 Comment
  JEPS43862  Camissoniopsis cheiranthifolia subsp. cheiranthifolia William S. Cooper 1924-11-19 37 San Mateo Ano Nuevo Pt. Comment
  JROH1646  Campanula griffinii John Rawlings 2007-5-9 1012 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5. 124 Comment
  SEINET10463045  Campanula prenanthoides Randall 1907-6-29 RANDALL 17 San Mateo King's Mountain Road Comment
  CAS-BOT-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  JROH1481  Cardamine californica D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH1484  Cardamine californica John Hunter Thomas 1982-4-4 20822 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam 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
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  JROH5678  Cardamine hirsuta John Rawlings 2015-3-3 1313 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 8 125 Comment
  UC1301005  Cardamine oligosperma Helen K. Sharsmith 1963-3-23 5247 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains, Alpine Creek 243 Comment
  SEINET11971639  Cardamine oligosperma Unknown 1941-1 41021 San Mateo near San Bruno Comment
  UCSC007728  Cardamine oligosperma Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22241  Carduus tenuiflorus J. T. Howell 1939-6-16 14741 San Mateo Skyline Blvd. near Crystal Springs Lake Comment
  RSA395824  Carduus tenuiflorus Cynthia Taylor 1971-6-12 163 San Mateo Corner of Bragado Road and Old Country Road, Belmont 6 Comment
  RSA101006  Carex amplifolia G. Oberlander 1950-5-21 958 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  JROH4319  Carex barbarae John Hunter Thomas 1989-6-6 24759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19329  Carex barbarae Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry. Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  CAS-BOT-BC18922  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18924  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC18930  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. 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-BC18938  Carex densa John Thomas Howell 1938-5-1 13785 San Mateo Near South San Francisco. Comment
  POM79201  Carex densa A. D. E. Elmer 1903-06 4428 San Mateo Crystal Springs Lake. Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  UC824431  Carex densa Lewis S. Rose 1935-5-4 35152 San Mateo Skyline Blvd. w San Bruno; Skyline Blvd. Comment
  UC824434  Carex densa W. R. Dudley 1896-4-4 San Mateo near Summit Springs, Kings Mountain Comment
  RSA91589  Carex densa L. S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  JROH4343  Carex globosa John Hunter Thomas 1992-4-23 25152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods. Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  JROH4347  Carex harfordii John Hunter Thomas 1986-4-24 23980 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along west side of Searsville Lake between boat ramp and "old beach." Comment
  JROH4352  Carex harfordii John Rawlings 2010-5-19 1057 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  CAS-BOT-BC210005  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC803889  Carex hendersonii G. L. Stebbins Jr. 1949-6-5 3983 San Mateo on Skyline Blvd. w Palo Alto (summit of Kings Mtn.); Kings Mtn. Comment
  CAS-BOT-BC173709  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  CAS-BOT-BC176401  Carex obnupta Peter Rubtzoff 1976-10-5 8906 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UC2013125  Carex serratodens Neal Kramer 2012-3-3 2031 San Mateo Stulsaft Park Redwood City. Comment
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  JROH4374  Carex tumulicola John Rawlings 2011-4-19 1084 San Mateo Jasper Ridge Biological Preserve, Stanford University. Creekside edge of barrow pit a few yards south of NE terminus of Leonard's Bridge. 108 Comment
  RSA119340  Carex tumulicola S. S. Tillett, I. Sternback 1956-6-25 543 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  SEINET7578974 Image available Carex tumulicola Wilhelm N. Suksdorf 1913-6-20 377 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  SJSU7602  Carpobrotus edulis E. P. Ryan 1965-4-25 San Mateo 1 mi N of Pigeon Point Lighthouse Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  CAS-BOT-BC249183  Castilleja affinis D. E. Breedlove 1974-5-13 36215 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CHSC57513  Castilleja affinis Sandy Trimble 1987-4-13 1 San Mateo On the e slope of Hwy 84, 6.7 mi w of Hwy 1 and 8.6 mi e of Hwy 35. 274 Comment
  POM88003  Castilleja affinis L. R. Abrams 1902-5-11 2437 San Mateo Crystal Springs Lake. Comment
  POM283660A  Castilleja affinis Lyman Benson 1930-5-1 2072 San Mateo Stanford Univ. San Lorenzo mtn range. 152 Comment
  SEINET12288583  Castilleja affinis Unknown 1932-1 8976 San Mateo Gov. Rolph Estate Comment
  JEPS15589  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4733 San Mateo above Thornton Beach (extreme nw San Mateo County) 54 Comment
  JEPS25440  Castilleja affinis subsp. affinis John Weiler 1961-3-22 6134 San Mateo 0.2 mi s Devil's Slide (about 2.5 mi n of community of Montara, n end of Montara Mtn); Montara Mtn. Comment
  JROH3933  Castilleja affinis subsp. affinis H. A. Borthwick 1920-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3937  Castilleja affinis subsp. affinis Ellen Searby 1955-4-1 76 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JEPS11933  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame, Route 101 Burlingame 0 Comment
  SBBG54525  Castilleja ambigua subsp. ambigua F. W. Pennell, D. D. Keck 1940-3-15 25427 San Mateo US Hwy 101, Burlingame 1 Comment
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  JROH3955  Castilleja attenuata John H. Thomas 1967-5-10 12857 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3963  Castilleja attenuata John Hunter Thomas 1978-4-28 19159 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3980  Castilleja densiflora subsp. densiflora John Hunter Thomas 1978-4-25 19149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC406904  Castilleja exserta subsp. latifolia David D. Keck 1927-6-10 395 San Mateo Montara Point; Radio Station 0 Comment
  RSA294162  Castilleja franciscana Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4228 San Mateo Along footpath 70 ft above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC243825  Castilleja latifolia C. F. Baker 1906-5-1 799 San Mateo King's Mt. Comment
  SD38274  Castilleja latifolia Edith A. Purer 1933-7-27 5374 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  POM21237  Castilleja latifolia Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  JROH3989  Castilleja rubicundula subsp. lithospermoides L. R. Abrams 1934-4-18 13568 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3995  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-29 9188 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH4009  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32465  Castilleja rubicundula subsp. lithospermoides L. S. Rose 1966-5-8 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC535783  Castilleja rubicundula subsp. lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo near Searsville Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes Comment
  JEPS18907  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5447 San Mateo just n Montara Point Lighthouse (at the town of Montara); Montara Comment
  JEPS34324  Castilleja subinclusa subsp. franciscana L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt.); San Pedro Mt., San Pedro Valley 60 Comment
  JEPS34452  Castilleja subinclusa subsp. franciscana L. R. Heckard 1963-7-18 1340 San Mateo just e Pigeon Point lighthouse (along old Coast Hwy 1) Comment
  JEPS83044  Castilleja subinclusa subsp. franciscana Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 430 San Mateo ca 1.7 km sw Pilarcitos Dam (and 5.8 km nw of intersection of Calif Hwys 35 and 92, along crest of Cahill Ridge, on e side of gravel rd); San Francisco Watershed Reserve, Cahill Ridge 335 Comment
  JEPS85202  Castilleja subinclusa subsp. franciscana Roy E. Buck and James A. West 1986-8-17 553 San Mateo ca 3.2 air km ene Franklin Point (Cascade Ranch, just s of Whitehouse Canyon Road, next drainage s of Whitehouse Creek drainage, on both sides of old ranch road) 106 Comment
  JEPS6917  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4740 San Mateo lower slopes Tunitas Canyon (about 2 mi above and e of junction of road ascending canyon with the old coast road) 167 Comment
  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
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  UCR71440  Castilleja wightii L. R. Heckard, Rimo Bacigalupi 1963-7-2 1332 San Mateo Along old county road over San Pedro and Montara Mtns; N flank of San Pedro Mt. 244 Comment
  JEPS34454  Castilleja wightii L. R. Heckard 1963-7-18 1342 San Mateo 2 mi sw (below) La Honda to Skylonda road junction with Skyline Blvd. (along La Honda road from Skylonda to La Honda) 365 Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  JEPS86182  Castilleja wightii L. R. Heckard 1988-5-18 6676 San Mateo ca 0.5 mi s Skyline Blvd. junction with Route 92 to Half Moon Bay Comment
  JEPS88823  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mi n Montana Comment
  JEPS88829  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7847 San Mateo ca 7 mi s Halfmoon Bay Comment
  SEINET884614 Image available Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC39377  Caulanthus lasiophyllus John H. Thomas 1961-5-13 9339 San Mateo At Franklin Point. Comment
  JROH1523  Caulanthus lasiophyllus John H. Thomas 1963-3-20 10024 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  JROH1527  Caulanthus lasiophyllus John H. Thomas 1971-4-10 15759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC40397  Caulanthus lasiophyllus Peter H. Raven 1950-4-16 1802 San Mateo San Bruno Mountain. Summit Ridge. 243 Comment
  CAS-BOT-BC47932  Ceanothus Fred Hemphill 1973-4-15 669 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 182 Comment
  CAS-BOT-BC47934  Ceanothus Elizabeth McClintock 1974-11-13 s.n. San Mateo San Bruno Mountain Comment
  UC79930  Ceanothus Katharine Brandegee April 1889 65 San Mateo San Gregorio Comment
  CAS-BOT-BC48304  Ceanothus cuneatus George Oberlander 1950-3-11 499 San Mateo West Sawyer Ridge Comment
  CAS-BOT-BC48393  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  UCSB18615  Ceanothus cuneatus var. ramulosus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC51607  Ceanothus oliganthus var. sorediatus Margaret A. Barry 1937-5-8 82 San Mateo Woods on Coal Mine Ridge Comment
  POM190252  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  SBBG45048  Ceanothus papillosus L. S. Rose 1935-5-3 San Mateo Skyline Blvd., W of Saratoga 731 Comment
  POM136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  RSA136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52287  Ceanothus thyrsiflorus L. R. A. 1902-5-20 2463 San Mateo King's Mountain Comment
  HSC18329  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 122 Comment
  UC1537016  Ceanothus thyrsiflorus Gordon H. True Jr. 1937-3-31 615 San Mateo on Salada Beach Road 60 Comment
  UC567045  Ceanothus thyrsiflorus N. K. Carlson 1935-7-5 60 San Mateo three mi s Bellvale; Santa Cruz Quad. 640 Comment
  UCSC011285  Ceanothus thyrsiflorus Unknown 1972-5-31 s.n. San Mateo Waddell Creek area Comment
  SD37640  Ceanothus thyrsiflorus var. griseus Edith A. Purer 1933-5-5 3601 San Mateo Alpine Road Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  JROH588  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  JROH591  Centaurea calcitrapa John Hunter Thomas 1977-6-16 18768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306675  Centaurea calcitrapa A. D. E. Elmer Jul 1903 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274585  Centaurea calcitrapa G. H. Mallory 1919-7-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto 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
  JROH603  Centaurea solstitialis John Hunter Thomas 1977-6-16 18766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH606  Centaurea solstitialis John Hunter Thomas 1981-10-25 20769 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate 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
  JEPS10207  Centaurium davyi Rimo Bacigalupi with G. T. Robbins 1954-6-18 4560 San Mateo Point Ano Nuevo Comment
  SEINET7097921  Centaurium davyi 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
  POM287523  Centaurium venustum Lyman Benson 1930-4-17 2068 San Mateo Stanford University. 122 Comment
  CAS-BOT-BC279330  Centromadia pungens subsp. pungens J. H. Thomas 1954-5-28 4231 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  JEPS38156  Centromadia pungens subsp. pungens W. L. Jepson 1928-7-11 12937 San Mateo Redwood City Comment
  UC1598488  Centromadia pungens subsp. pungens John Thomas Howell 1956-9-19 31877 San Mateo 2.3 mi s of Lake Merced; Skyline Blvd. Comment
  CAS-BOT-BC279323  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  CAS-BOT-BC279332  Centromadia pungens subsp. pungens Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  UC943015  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd San Mateo Comment
  CAS-BOT-BC384958  Cerastium arvense W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  JROH1693  Cerastium glomeratum John H. Thomas 1971-4-24 15772 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1697  Cerastium glomeratum John Hunter Thomas 1992-4-23 25145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  POM193985  Ceratophyllum demersum Roxana S. Ferris 1920-9-3 2042 San Mateo In upper Mud Lake, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  POM139639  Cercocarpus betuloides A. D. E. Elmer 1903-05 4530 San Mateo Searsville Lake Comment
  SEINET11914803  Cercocarpus betuloides J. T. McMurphy 1906-1 18 San Mateo Los Trancos Creek, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CHSC263  Chamaemelum nobile J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  JROH1820  Chenopodium californicum D. E. Breedlove 1971-5-11 19334 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  RSA195571  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. Comment
  JROH1829  Chenopodium vulvaria Ann Lambrecht, Carol Zabel 2005-8-24 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, east bank Comment
  CAS-BOT-BC497722  Chlorogalum pomeridianum Cherie Wetzel 1969-6-20 868 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  RSA10283  Chlorogalum pomeridianum var. divaricatum H. A. Barker 1927-5-14 657 San Mateo North of Half Moon Bay. Comment
  JROH4650  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1981-5-19 20605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306660  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer May 1903 4828 San Mateo San Pedro; ; San Pedro, San Mateo Co. Comment
  RSA152079  Chrysanthemum coronarium John H. Thomas 1961-5-7 9321 San Mateo San Bruno Mountain, western end of mountain 244 Comment
  RSA130687  Chrysanthemum leucanthemum W. R. Dudley 1908-6-19 s.n. San Mateo Hills N of Jersey Farm Dairy. W of Baden Comment
  CAS-BOT-BC36401  Chrysolepis chrysophylla W. R. Dudley 1893-5-27 s.n. San Mateo Road from Woodside to Kings Mt. Comment
  RSA18289  Chrysolepis chrysophylla Carl B. Wolf 1927-6-21 428 San Mateo East slope of Kings Mt. Comment
  JEPS78658  Chrysolepis chrysophylla var. minor Edward Lee 1936-1-26 1742 San Mateo between Purisima Creek and Tunitas Creek (near summit) 609 Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  CAS-BOT-BC277893  Cirsium brevistylum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CAS-BOT-BC100945  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Comment
  UC175461  Cirsium fontinale var. fontinale W. N. Suksdorf 1913-6-22 113 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280132  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  JROH632  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Westridge end of ridge Comment
  RSA176529  Cirsium occidentale var. venustum John H. Thomas 1963-6-23 10169 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  CDA1534  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  CAS-BOT-BC280518  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  RSA0070860  Cirsium quercetorum A. D. E. Elmer 1903-06 4290 San Mateo Crystal Springs Lake. Comment
  SJSU11877  Cirsium quercetorum G. I. Tourtlotte 1968-5-22 San Mateo S side Guadalupe Canyon, San Bruno Mts. Comment
  CDA7143  Cirsium vulgare D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH641  Cirsium vulgare John Hunter Thomas 1983-7-7 22813 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC164315  Clarkia davyi A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC172000  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  CAS-BOT-BC163965  Clarkia purpurea subsp. quadrivulnera John H. Thomas 1958-5-13 7168 San Mateo About 3 miles SW of San Mateo along Skyline Blvd, 0.3 mi. S of its intersection with Black Mt. Rd. 304 Comment
  JEPS127894  Clarkia purpurea subsp. quadrivulnera Adam C. Schneider 2013-5-17 178 San Mateo Comment
  POM271800  Clarkia purpurea subsp. quadrivulnera Lyman Benson 1930-4-17 2088 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  SEINET4145648  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8382 San Mateo Near Ocean View, San Francisco Comment
  RSA176537  Clarkia purpurea subsp. viminea John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC165175  Clarkia rubicunda Hester R. Davis 1920-6-1 180 San Mateo Back of Redwood City Comment
  JEPS83042  Clarkia rubicunda Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 432 San Mateo ca. 0.5 km ne Pilarcitos Dam (near crest of Cahill Ridge, w of gravel rd., overlooking Pilarcitos Lake, 7.5 km nw of the intersection of Calif. Hwys. 35 and 92); San Francisco Watershed Reserve 289 Comment
  JROH3026  Clarkia rubicunda John Hunter Thomas 1981-5-25 20646 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC114010  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC615203  Clarkia rubicunda Beryl O. Schreiber 1932-5-29 310 San Mateo Spring Valley Water Company Road Comment
  CAS-BOT-BC165137  Clarkia rubicunda Robert Setzer 1969-7-18 3366 San Mateo Montara Beach Comment
  CAS-BOT-BC165153  Clarkia rubicunda Walter Knight 1964-9-14 836 San Mateo On ridge - between Peak Mt. and highway 1 Comment
  CAS-BOT-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  SJSU11021  Clarkia rubicunda A. H. Lilliberg 1961-5-22 San Mateo by Woodside Heights Rd near Woodside Comment
  RSA108439  Clarkia rubicunda subsp. blasdalei Harlan Lewis, M. Lewis 1951-6-28 962 San Mateo Highway 1, 0.6 mile south of road to Redwood City, at Tunitas Creek. Comment
  RSA128518  Clarkia rubicunda subsp. blasdalei L. R. Abrams 1907-8-25 s.n. San Mateo Santa Cruz Mountain Peninsula: Between Pescadero and Half Moon Bay Comment
  UCSC007594  Clarkia rubicunda subsp. blasdalei Randall Morgan 2010-5-29 5038 San Mateo Rockaway Beach Comment
  POM32413  Clarkia unguiculata A. D. E. Elmer 1903-06 4293 San Mateo Alpine School House. Comment
  CAS-BOT-BC439291  Claytonia exigua subsp. exigua D. K. Gillespie 1930-4-21 9222 a San Mateo Emerald Lake near Redwood City. Comment
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  JROH3336  Claytonia exigua subsp. exigua John Hunter Thomas 1992-4-9 25133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM164075  Claytonia exigua subsp. exigua C. F. Baker 1903-4-6 1884 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  CAS-BOT-BC443657  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-2-25 1381 San Mateo San Bruno Mountains, above Brisbane 91 Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  POM270613  Clematis Arthur L. Cohen 1935-4-21 611 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  JROH3406  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3413  Clematis lasiantha John H. Thomas 1973-3-12 16490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12087591  Clematis lasiantha L. R. Abrams 1914-1 5076 San Mateo Woodside Comment
  JROH2871  Clinopodium douglasii H. A. Lewis 1908-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2874  Clinopodium douglasii John H. Thomas 1971-5-30 15954 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389745  Clinopodium douglasii M. Danielson 1965-5-15 s.n. San Mateo Western extension of Edgewood Road - Redwood City Comment
  POM290456  Clintonia andrewsiana Lyman Benson 1930-6-14 2151 San Mateo La Honda, Santa Cruz Mtn. range. 213 Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  RSA15294  Clintonia andrewsiana Carl B. Wolf 1927-4-3 263 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA377075  Clintonia andrewsiana D. D. Keck 1932-6-1 1797 San Mateo One mile west of Skyline Blvd on La Honda Road, Santa Cruz Mtns. Comment
  RSA130679  Collinsia heterophylla W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  POM273510  Collinsia heterophylla Lyman D. Benson 1931-4-26 2759 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  RSA104881  Collinsia heterophylla E. F. Sprague 1956-5-28 s.n. San Mateo 2 miles below Skyline Drive on E. La Honda Road. Comment
  UCD123583  Collinsia heterophylla W. A. Harvey; J. M. Tucker 1948-6-29 1702 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  JEPS17741  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo San Bruno Hills, at upper edge of town of Brisbane Brisbane; San Bruno Hills, Brisbane 198 Comment
  JROH5707  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 B San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  JROH3141  Collomia heterophylla John Hunter Thomas 1985-5-22 23674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH215  Conium maculatum John Hunter Thomas 1981-5-5 20541 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA0059768  Convolvulus subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  RSA0059776  Convolvulus subacaulis Alice Eastwood 1933-5-14 18851 San Mateo Woodside, woods near the Shilling place. Comment
  CAS-BOT-BC286206  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  UC72234  Corallorhiza maculata Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  JEPS2971  Cordylanthus rigidus subsp. rigidus James G. Daly 1934-9-30 526 San Mateo ridge s of upper Corte de Madera Creek (drainage of La Honda Creek) Comment
  UC26349  Cordylanthus rigidus subsp. rigidus Alice Eastwood 1896-9-6 San Mateo Crystal Springs Comment
  JEPS30902  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo about 4.3 mi due e of Belmont; Crystal Springs Reservoir 91 Comment
  POM88007  Corethrogyne filaginifolia var. californica L. R. Abrams 1902-5-11 2459 San Mateo Crystal Springs. Comment
  RSA726759  Cornus glabrata Lyman Benson 1930-5-26 2133 San Mateo Stanford University, Lake Searsville 152 Comment
  UC527527  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 2 mi. back of Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  CAS-BOT-BC210359  Cornus sericea Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH1864  Cornus sericea subsp. sericea John H. Thomas 1961-5-5 9211 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  HSC23909  Corylus cornuta subsp. californica Mary Katherine Wicksten 1971-6-17 81 San Mateo Huddart Park above Oak Flat Comment
  JEPS118180  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287303  Cotula australis W. R. Dudley 1909-10-4 s.n. San Mateo North pond near Mussel Rock Comment
  RSA6409  Cotula coronopifolia D. D. Keck 1932-3-24 1403 San Mateo Redwood City, at border of San Francisco Bay. Comment
  CAS-BOT-BC427608  Crassula aquatica Peter Rubtzoff 1965-10-19 5663 San Mateo Margin of Pilarcitos Lake Comment
  OBI20232  Crassula aquatica Rimo Bacigalupi, G. T. Robbins 1954-6-18 4561 San Mateo At Point Ano Nuevo Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  JROH1886  Crassula connata D. E. Breedlove 1971-5-5 19322 San Mateo Jasper Ridge Biological Preserve, Stanford University; above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344932  Crataegus monogyna Peter Rubtzoff; Roman Gankin 1975-5-21 7977 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH3660  Crataegus monogyna John Hunter Thomas 1989-4-20 24638 San Mateo Jasper Ridge Biological Preserve, Stanford University; near caretakers trailers Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4433  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2002-5-15 s.n. San Mateo Along I-280 W of Woodside. 0 Comment
  UC19183  Crocanthemum scoparium var. scoparium J. Burtt Davy Jun 21 1893-Jun 23 1893 1157 San Mateo Pilarcitos Lake and Canyon Comment
  JROH1959  Croton setiger John H. Thomas 1974-10-26 17631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389725  Croton setiger M. K. Wicksten 1971-7-20 148 San Mateo Huddart Pk. Comment
  JROH4997  Crypsis schoenoides Toni Corelli 2006-9-20 331 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 In the dry Corte Madera streambed. 109 Comment
  JROH1372  Cryptantha microstachys John H. Thomas 1961-4-29 9197 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1378  Cryptantha microstachys John Hunter Thomas 1978-5-16 19213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC80653  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo On the north bank of the North Fork of Butano Creek (common corner of Sections 11 & 12 and 13 & 14, range 4 W) Comment
  CAS-BOT-BC80789  Cupressus macrocarpa George Oberlander 1950-2-1 422 San Mateo Cahill Ridge - Plants of the San Francisco Watershed Reserve Comment
  JROH1861  Cuscuta occidentalis John Rawlings 2011-10-18 1095 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  UC153904  Cuscuta salina var. major L. R. Abrams 1906-9-30 San Mateo Cooley's Landing Comment
  CAS-BOT-BC287326  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JEPS88622  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5004  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128514  Cynoglossum grande L. R. Abrams 1902-4-6 2317 San Mateo Searsville. Comment
  RSA130387  Cynoglossum grande A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  UC572651  Cynoglossum grande Howard T. Morse 1937-4-13 San Mateo Loma Mar Comment
  UC676736  Cynoglossum grande Reed C. Rollins 1941-2-22 2942 San Mateo 8 mi. n.w. Palo Alto Comment
  RSA132456  Cyperus eragrostis John H. Thomas 1959-8-22 8084 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  POM182581  Cyperus eragrostis D. D. Keck 1931-8-6 1263 San Mateo Near Searsville Lake. 75 Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH4392  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH20  Cystopteris fragilis Herbert Dengler 1961-4-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek Comment
  CAS-BOT-BC67972  Cystopteris fragilis Roxana S. Ferris 1921-3-20 2108 a San Mateo 6 mi. from Pescadero Comment
  CAS-BOT-BC198194  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra Point, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD60466  Danthonia californica A. A. Beetle 1942-6-11 3595 San Mateo 2 miles north of South San Francisco. Comment
  RSA6303  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  CDA31644  Danthonia californica var. californica T. C. Fuller 1975-5-15 20075 San Mateo Hillborough, north exit of rest stop, east side of Hwy 280. 0 Comment
  JROH1907  Datisca glomerata John Hunter Thomas 1991-11-21 25104 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA18457  Daucus pusillus C. B. Wolf 1927-6-29 550 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC299191  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299213  Deinandra corymbosa subsp. corymbosa Fred Hemphill 1973-5-14 819 San Mateo Area north of Malabar Road adn Melendy Drive 207 Comment
  CAS-BOT-BC299219  Deinandra corymbosa subsp. corymbosa J McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC299227  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299192  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1292 San Mateo Salada Beach beside the golf course Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC292117  Delairea odorata John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC9213  Delphinium californicum J. H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC9219  Delphinium californicum Margaret A. Barry 1937-6-24 187 San Mateo North slope near Los Trancos Creek on Coal Mine Ridge Comment
  CAS-BOT-BC9220  Delphinium californicum W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, above Judge Allen's, Santa Cruz Mountains Comment
  JROH3440  Delphinium californicum subsp. californicum John Hunter Thomas 1989-5-11 24730 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near and below dam Comment
  RSA15301  Delphinium decorum Carl B. Wolf 1927-4-3 271 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC10289  Delphinium hesperium J. H. Thomas 1949-5-29 564 San Mateo Alpine Road, about 1 mile beyond intersection with Mt. Home Road, going west Comment
  JROH3449  Delphinium hesperium subsp. hesperium John Hunter Thomas 1983-6-2 22330 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116328  Delphinium parryi subsp. parryi W. R. Dudley 1894-7-7 S. N. San Mateo Under trees, head of Corte Madera. Comment
  SJSU3087  Delphinium patens A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  JROH3454  Delphinium patens subsp. patens John H. Thomas 1976-4-3 18070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7900  Delphinium variegatum Alice Eastwood 1896-5-1 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC7931  Delphinium variegatum Doris Kildale Gillespie 1930-4-21 9221 San Mateo Emerald Lake near Redwood City Comment
  CAS-BOT-BC7933  Delphinium variegatum George Thomas Oberlander 1950-5-28 985 San Mateo near Lower Crystal Springs Lake Comment
  CAS-BOT-BC7888  Delphinium variegatum LeRoy Abrams 1902-5-4 2410 San Mateo not specified Comment
  CAS-BOT-BC7939  Delphinium variegatum John Hunter Thomas 1969-4-24 14914 San Mateo near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC33190  Delphinium variegatum subsp. variegatum David Daniels Keck 1933-5-11 2309 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC7927  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  UC118662  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 San Mateo Crystal Springs Comment
  CAS-BOT-BC192597  Deschampsia cespitosa subsp. holciformis Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  UCD63756  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1921-6-3 San Mateo Millbrae Ranch. Comment
  JROH5052  Deschampsia danthonioides John Hunter Thomas 1986-4-30 23983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5056  Deschampsia danthonioides John Hunter Thomas 1991-5-7 25036 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA591518  Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5071  Deschampsia elongata John Hunter Thomas 1987-5-15 24285 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road from low flow crossing to the west side of the dam. Comment
  CAS-BOT-BC500894  Dichelostemma capitatum Fred Hemphill 1973-5-6 746 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC500898  Dichelostemma capitatum George Oberlander 1950-3-18 563 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC209018  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Trousdale Dr. & California Dr., Burlingame 9 Comment
  CAS-BOT-BC150449  Diplacus aurantiacus Barrett Anderson; Peter Rubtzoff 1988-4-22 3665 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC150466  Diplacus aurantiacus L. R. Abrams 1915-6-23 5257 San Mateo Saratoga Big Basin Road Comment
  SD38168  Diplacus aurantiacus Janet Turner 1933-5-30 2123 San Mateo Near Spring Valley Lake Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  CDA6696  Dipsacus sativus T. C. Fuller 1960-4-2 4066 San Mateo Crystal Springs Reservoir, road to Half Moon Bay. 0 Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  JROH4202  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4206  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 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
  JROH4208  Dirca occidentalis John H. Thomas 1975-4-3 17701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4217  Dirca occidentalis Carol Zabel 1990-4-15 40 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
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  SBBG39502  Dirca occidentalis L. S. Rose 1970-1-30 70002 San Mateo 1 mi SE of San Andreas Lake; Santa Cruz Mts 304 Comment
  SD49792  Dirca occidentalis John H. Thomas 1958-2-15 6980 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  UCD116838  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N. end of Crystal Springs Lake. 121 Comment
  CAS-BOT-BC121861  Dirca occidentalis Roberta Gilbert 1933-5-14 s.n. San Mateo Near San Geronimo Creek Comment
  SJSU16012  Distichlis spicata John Rawlings, Ken Hickman 2016-5-26 1814 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA20072  Dittrichia graveolens D. Pendleton 2002-10-16 PDR 065871 San Mateo San Francisco Bay Area; Sandhill Rd & Lawler Ranch Rd, W of Hwy 280. 0 Comment
  POM287082  Dodecatheon clevelandii subsp. patulum Lyman Benson 1929-3-16 1014 San Mateo Crystal Springs Lake, Spring Valley Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  POM287492  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-28 2609 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA112451  Drymocallis glandulosa H. A. Borthwick 1920-4-28 101 San Mateo Portola Valley Comment
  CAS-BOT-BC159538  Drymocallis glandulosa var. glandulosa Le Roy Abrams 1902-5-20 2466 San Mateo King's Mountain Comment
  CAS-BOT-BC159546  Drymocallis glandulosa var. glandulosa John H. Thomas 1965-4-29 10600 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159534  Drymocallis glandulosa var. glandulosa W. R. Dudley 1900-3-17 s.n. San Mateo Grade up Montara Mts. - Santa Cruz Peninsula Comment
  JROH3734  Drymocallis glandulosa var. wrangelliana John H. Thomas 1967-6-1 12973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC67895  Dryopteris arguta Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Buckeye Canyon Comment
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCR240611  Dudleya T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3525 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-BC410867  Dudleya caespitosa Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC428359  Dudleya farinosa John H. Thomas 1963-7-19 10197 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH1815  Dysphania ambrosioides John Hunter Thomas 1980-11-12 20165 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC208923  Echinochloa crus-galli Paul Reeberg; Jake Sigg; Peter Rubtzoff 1991-8-10 s.n. San Mateo P.G.&E. Marsh - San Bruno Mountains Comment
  JROH5098  Echinochloa crus-galli Ann Lambrecht 2006-8-23 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry bed of San Francisquito Creek below Dennis Martin marker 71 Comment
  JROH4310  Echinodorus berteroi John Hunter Thomas 1992-7-24 25389 San Mateo Jasper Ridge Biological Preserve, Stanford University; in water and on mud near boat ramp Comment
  UCR122579  Echium pininana George K. Helmkamp, E. A. Helmkamp 2001-6-2 6785 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  JROH1912  Elatine brachysperma John Hunter Thomas 1982-8-13 21137 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC113593  Eleocharis acicularis George Thomas Oberlander 1950-5-6 841 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC112960  Eleocharis macrostachya Adolph Daniel Edward Elmer 1903-7-1 4767 San Mateo San Pedro. Comment
  JEPS100765  Elymus californicus Dean W. Taylor 2000-6-12 17464 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  POM352566  Elymus californicus P. H. Raven 1967-6-25 21418 San Mateo Pescadero Road 2.8 miles SW of Alpine Road. Comment
  SJSU11265  Elymus glaucus S. H. Casey 1980-6-13 1157 San Mateo Los Trancos Woods 609 Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5131  Elymus multisetus John Hunter Thomas 1986-6-7 24086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101004  Elymus multisetus G. Oberlander 1950-7-15 1015 San Mateo north of San Andreas Lake, San Francisco Watershed Reserve Comment
  SJSU15954  Elymus multisetus John Rawlings, Ken Hickman 2016-5-26 1831 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
  SJSU15940  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1816 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH5277  Elymus triticoides Herbert Dengler 1960-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 200 yds inside preserve from Mantilla Drive Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  UCR3568  Epilobium ciliatum Wm. Horn Jr. 1963-6-10 630610- 01 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  UC1537611  Epilobium ciliatum subsp. watsonii Gordon H. True Jr. 1936-6-7 481 San Mateo 2 mi s Pescadero (gully along coast highway) 15 Comment
  JROH3063  Epilobium densiflorum H. J. Dengler 1972-8-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along W. Searsville inlet Comment
  JROH5569  Epilobium densiflorum John Rawlings 2013-6-13 1188 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west end of the shallow depression known as the Semaphore Grass Meadow. 122 Comment
  UCD84586  Epipactis gigantea Christopher Michael Bronny 2009-9-29 19 San Mateo Specimen collected along channelized/constrained banks of Belmont Creek south of Harbor Boulevard/east of Industrial Boulevard; property owned and maintained by Novartis Pharmaceuticals. 4 Comment
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Mar 10 2012
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 Comment
  JROH58  Equisetum arvense John Hunter Thomas 1982-11-6 21194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC57608  Equisetum telmateia John Hunter Thomas 1954-4-3 3816 San Mateo La Honda Creek, about 1 mile north of La Honda 152 Comment
  CAS-BOT-BC57600  Equisetum telmateia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC57606  Equisetum telmateia L. R. Abrams 1904-3-7 6343 San Mateo Bear Gulch near Time Falls Comment
  JROH74  Equisetum telmateia subsp. braunii Toni Corelli 2010-3-29 361 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south side of Leonard's Bridge 106 Comment
  JROH66  Equisetum telmateia subsp. braunii John H. Thomas 1974-5-3 17245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Below dam. Comment
  JROH5925  Eragrostis curvula John Rawlings 2009-5-1 1048 San Mateo Sand Hill Road at entrance to Horse Park at Woodside, on the Menlo Park-Woodside border, San Mateo Co. Comment
  CAS-BOT-BC204641  Eragrostis mexicana subsp. virescens John H. Thomas 1971-10-27 16028 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus Comment
  CAS-BOT-BC291202  Erechtites glomeratus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station Comment
  JROH3144  Eriastrum abramsii John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC618364  Eriastrum abramsii Lewis S. Rose 1937-9-21 37659 San Mateo Emerald Lake 182 Comment
  POM359360  Ericameria ericoides var. ericoides D. D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  JROH651  Erigeron canadensis John Hunter Thomas 1981-10-25 20771 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  UCD131896  Erigeron floribundus John Thomas Howell 1975-9-25 51508 San Mateo San Bruno Mountain. 396 Comment
  JROH5587  Erigeron foliosus var. foliosus Winkie Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Hillside Lab just south of Trail 7 152 Comment
  CAS-BOT-BC300614  Erigeron foliosus var. franciscensis Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CAS-BOT-BC295080  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo Pebble Beach nr. Pescadero Comment
  CAS-BOT-BC295082  Erigeron glaucus John H. Thomas 1961-5-12 9327 San Mateo San Bruno Mountain in northern part of county 396 Comment
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  SEINET11859443  Erigeron glaucus M. T. Doutt 1931-3-14 239 San Mateo along coast S of San Francisco Comment
  JROH693  Erigeron karvinskianus Ann Lambrecht 2009-4-6 40 San Mateo Jasper Ridge Biological Preserve, Stanford University; rock outcrop on south side of San Francisquito Creek below Trail 2 Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5904  Eriodictyon californicum M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  CAS-BOT-BC253198  Eriogonum fasciculatum Lewis S. Rose 1941-9-21 41455 San Mateo Intersection of Alpine Creek Road and Skyline Blvd. 609 Comment
  CAS-BOT-BC250546  Eriogonum gracile L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake in hills near Redwood City Comment
  CAS-BOT-BC251991  Eriogonum latifolium Alice Eastwood 1937-7-25 18884 San Mateo Pebble Beach, Pescadero Comment
  UCR121581  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 1999-6-28 4986 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC251990  Eriogonum latifolium Mrs. E. C. Sutliffe 1934-7-12 s.n. San Mateo Along the Ocean Shore road Comment
  CAS-BOT-BC389664  Eriogonum latifolium Sigal 1969-8-1 78 San Mateo Pescadero Beach 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-BC266072  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  RSA279684  Eriogonum luteolum James L. Reveal, John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, on oak covered hillsides south of San Francisquito Creek 183 Comment
  JROH3229  Eriogonum luteolum var. luteolum John H. Thomas 1967-11-5 14133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3231  Eriogonum luteolum var. luteolum John H. Thomas 1974-10-26 17636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3234  Eriogonum luteolum var. luteolum John Hunter Thomas 1981-7-24 20728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS83063  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 450 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-BC268997  Eriogonum nudum var. auriculatum J. H. Thomas 1958-6-11 7226 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  SBBG32434  Eriogonum vimineum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, W of Redwood City 243 Comment
  RSA175141  Eriophyllum confertiflorum R. F. Thorne, Percy C. Everett 1963-6-9 32234 San Mateo Top of San Bruno Mountain 335 Comment
  JROH696  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH704  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517987  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC301269  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1929-8-11 4374 San Mateo King [Kings] Mt. Comment
  CAS-BOT-BC301271  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By county road below Dam, San Mateo Creek Comment
  JEPS34328  Eriophyllum lanatum var. arachnoideum L. R. Heckard and Rimo Bacigalupi 1963-7-2 1334 San Mateo above summit of old country road; Montara Mt. 304 Comment
  SD40140  Eriophyllum staechadifolium Edith A. Purer 1933-7-27 5395 San Mateo Partially stabilized san dunes, two miles south of Pigeon Point. Comment
  UC483493  Eriophyllum staechadifolium Ira L. Wiggins 1929-7-4 3793 San Mateo sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC301966  Eriophyllum staechadifolium George Oberlander 1949-7-30 332 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC301974  Eriophyllum staechadifolium Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC301978  Eriophyllum staechadifolium Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  RSA116778  Eriophyllum staechadifolium W. R. Dudley 1898-1-4 s.n. San Mateo Bank of Ocean Shore- mouth of Waddell Creek. Santa Cruz Mountain Peninsula Comment
  JROH2591  Erodium botrys John H. Thomas 1967-6-1 12948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195687  Erodium botrys John H. Thomas 1967-5-10 12838 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204324  Eryngium armatum I. L. Wiggins 1929-7-4 3794 San Mateo Pescadero Beach Comment
  SJSU16023  Eryngium armatum John Rawlings, Toni Corelli 2016-5-13 1792 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  JROH244  Eryngium jepsonii John Hunter Thomas 1992-6-8 25368 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272834  Erysimum capitatum Lyman Benson 1929-3-16 1012 San Mateo Crystal Springs Lake, Spring Valley Comment
  CAS-BOT-BC54508  Erysimum capitatum Alice Eastwood; John Thomas Howell 1938-6-26 6053 San Mateo 2 miles south of San Gregorio. Comment
  UC1034903  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-12 860 San Mateo La Honda Grove Coast Range 121 Comment
  CAS-BOT-BC54827  Erysimum franciscanum Alice Eastwood 1903-2-8 3237 San Mateo Spring Valley. Comment
  CAS-BOT-BC54884  Erysimum franciscanum James Newman 1951-4-24 12 San Mateo Chrystal Springs Reservoir. 152 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
  UC1034934  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 905 a&b San Mateo creek ravine below Crystal Springs Lake; San Mateo Cr. 60 Comment
  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
  UC1034947  Erysimum franciscanum G. B. and R. P. Rossbach 1939-6-4 915 San Mateo w slope of ridge between Crystal Springs Lake and San Andreas Lake (small isolated pinnacle); Buriburi Ridge 121 Comment
  CAS-BOT-BC54882  Erysimum franciscanum Mason 1917-4-1 s.n. San Mateo Crystal Springs Lake. Comment
  RSA15249  Erysimum franciscanum C. B. Wolf 1927-2-19 s.n. San Mateo 1 mile from where Skyline Blvd. crosses the road to Halfmoon Bay Comment
  CAS-BOT-BC124227  Erysimum franciscanum var. crassifolium George Bowyer Rossbach 1955-3-26 572 San Mateo 2 mi S of San Francisco line & 3 mi. N of Shapr Park (Salada) Comment
  CHSC22332  Erythranthe guttata Robert A. Schlising; Glenn Keator 1962-2-3 2044 San Mateo Coast Ranges. Along Highway 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
  SD234188  Erythranthe guttata Claude Bonang 1958-4-4 7 San Mateo Woods along road from Searsville Lake to Jasper Ridge. Comment
  SEINET14046269 Image available Erythranthe guttata Ynez Whilton Winblad 1941-1 San Mateo 1 Mile north of Crystal Springs Res. Comment
  JROH3095  Eschscholzia californica John H. Thomas 1967-6-1 12963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC403554  Eschscholzia californica W. S. Chandler 1901-3-30 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC403558  Eschscholzia californica W. R. Ernst 1957-4-2 102 San Mateo Near junction of Highway 1 and Skyline Blvd. among San Francisco Headlands Comment
  JROH5889  Eschscholzia californica Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278183  Euonymus occidentalis Lyman Benson 1937-8-15 8488 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  JROH1796  Euonymus occidentalis var. occidentalis Volney Rattan May s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC635616  Euonymus occidentalis var. occidentalis H. L. Mason 1924-5-18 1016 San Mateo Jasper Ridge near Stanford (creek below sand hill caves); Jasper Ridge Comment
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Sep 19 2011
  JROH529  Eurybia radulina L. R. Abrams 1916-10-19 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5919  Eurybia radulina John Hunter Thomas 1981-5-25 20629 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  CAS-BOT-BC310623  Eurybia radulina L. R. A. 1902-9-28 3004 San Mateo New Grade Road - Portola Comment
  JROH530  Eurybia radulina Carol Zabel 2005-8-1 54 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  CAS-BOT-BC413877  Fallopia convolvulus Ira L. Wiggins 1935-8-24 8159 San Mateo 2 mi. E. of Half Moon Bay Comment
  CAS-BOT-BC183620  Festuca arundinacea Peter Rubtzoff 1976-6-13 8632 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  SJSU16063  Festuca arundinacea Toni Corelli 2009-9-22 446 San Mateo Ano Nuevo State Park, adjacent to Gazos Creek parking lot Comment
  JROH5469  Festuca bromoides Herbert Dengler 1965-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.E. of S. end of Searsville Lake. 152 Comment
  JROH5475  Festuca bromoides John Hunter Thomas 1984-5-3 23334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS18167  Festuca californica Rimo Bacigalupi with Galen Smith, L. Dempster, and T. Robbins 1956-5-15 5645 San Mateo first ridge w San Andreas Lake (on road to Pilarcitos Lake) 198 Comment
  CAS-BOT-BC278354  Festuca californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. W. of San Andreas Reservoir Comment
  JROH5822  Festuca myuros John Rawlings 2016-3-8 1681 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
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Nov 2 2021
  RSA10389  Fragaria californica H. A. Barker 1926-5-15 626 San Mateo King Mt. Comment
  RSA0051577  Fragaria californica W. M. Arbaugh 1968-4-10 267 San Mateo Butano State Park. Comment
  RSA499366  Fragaria californica T. Gertrude Williamson 1928-6-28 s.n. San Mateo La Honda Comment
  UC1536909  Fragaria chiloensis Gordon H. True 1937-3-31 616 San Mateo Salada Beach Comment
  UCD113234  Fragaria vesca W. A. Harvey; J. M. Tucker 1948-6-29 1705 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC457515  Fragaria vesca subsp. californica W. R. Dudley 1894-7-28 s.n. San Mateo hill between La Honda and Pescadero, Santa Cruz Mountain Pennisula Comment
  CAS-BOT-BC457526  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mountain Comment
  CAS-BOT-BC457534  Fragaria vesca subsp. californica Alice Eastwood 1913-2-22 2454 San Mateo San Bruno Hills Comment
  JEPS127867  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 170 San Mateo Crystal Springs Reservoir Comment
  JROH3549  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3551  Frangula californica subsp. californica John Hunter Thomas 1987-5-26 24312 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  JROH3572  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3576  Frangula californica subsp. tomentella John Hunter Thomas 1981-5-25 20632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211609  Frankenia salina John Thomas Howell 1924-9-28 659 San Mateo Leslie Salt Refinery Comment
  UC803943  Fritillaria affinis G. L. Stebbins Jr. 1949-6-5 3984 San Mateo 1/2 mi n of La Honda (along highway) Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  SD39120  Fritillaria affinis Marie Cummings 1933-4-11 11 San Mateo Spring Valley Lake. Comment
  UCD139717  Fritillaria affinis R. E. Dengler 1960-4-12 26 San Mateo Jasper Ridge, Stanford Biological Reserve. 129 Comment
  SEINET3886766  Fritillaria lanceolata Lois R. O'Brien 1963-3-9 85 San Mateo San Bruno Mountains, on Radio Road 3 miles from Estrada Way.; 0 213 Comment
  POM210222  Fritillaria liliacea H. E. Parks 1930-3-10 400 San Mateo Spring Valley Lakes Comment
  JEPS83069  Galium Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 434 San Mateo along crest of ridge w gravel road (ca 3.2 km nw of Pilarcitos Dam and 2.4 km wsw of San Andreas Dam); San Francisco Watershed Reserve, Fifield Ridge 388 Comment
  JROH3782  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC183621  Galium aparine Peter Rubtzoff; Roman Gankin 1975-5-21 7966 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA101002  Galium aparine G. Oberlander 1949-4-30 113 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  JEPS35285  Galium murale John H. Thomas 1961-4-29 9177 San Mateo about 5 mi sw Palo Alto; Jasper Ridge Biological Experimental Area, Jasper Ridge Comment
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130817  Galium nuttallii Josephine Randall 1907-6-8 352 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  JROH3810  Galium porrigens var. porrigens John H. Thomas 1968-3-17 14185 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  JROH794  Gamochaeta ustulata John Hunter Thomas 1980-5-8 19939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC194558  Garrya elliptica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon 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
  JROH2540  Garrya elliptica W. R. Dudley 1899-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM222795  Garrya elliptica K. L. Dole 1909-2-27 s.n. San Mateo Jasper Ridge. 183 Comment
  CAS-BOT-BC278663  Gastridium phleoides George Oberlander 1949-6-25 263 San Mateo San Francisco Watershed Reserve Comment
  JROH5182  Gastridium phleoides John H. Thomas 1963-6-23 10172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grasslands near Westridge end of ridge Comment
  JROH5188  Gastridium phleoides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  CAS-BOT-BC278712  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountain. Along drainage ditch west of the Quarry; Crocker Industrial Park 45 Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  CAS-BOT-BC59635  Gaultheria shallon Walter Knight; Irja Knight 1965-2-28 863 San Mateo Ca. 100 yds above Eucalyptus Grove off Radio Road. Comment
  CDA5304  Gaura sinuata T. C. Fuller 1974-5-21 19990 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  CAS-BOT-BC526238  Gazania Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains; near Picnic Area Comment
  CAS-BOT-BC219141  Genista monspessulana T. C. Fuller 1960-4-20 4086 San Mateo roadside, Page Mill Road, 0.5 mi above (SW) Moody Road, Los Altos Hills Comment
  JROH1999  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2022  Genista monspessulana John Hunter Thomas 1991-5-9 25039 San Mateo Jasper Ridge Biological Preserve, Stanford University; near entrance gate Comment
  JROH2621  Geranium dissectum John Hunter Thomas 1992-5-14 25225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  CAS-BOT-BC166727  Geranium dissectum Peter Rubtzoff 1977-6-7 9028 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2624  Geranium molle John H. Thomas 1956-4-7 5609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JEPS101989  Gilia clivorum Dean W. Taylor 1994-5-10 14266 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC535968  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo near Searsville; near Searsville Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  CAS-BOT-BC303687  Glebionis coronaria Walter & Irja Knight 1967-6-6 2071 San Mateo San Bruno Mt. Point San Bruno Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5826  Glycyrrhiza lepidota Ann Lambrecht 2011-12-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of San Francisquito Cr. near water's edge 83 Comment
  RSA176726  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below dam. Comment
  RSA15291  Gnaphalium luteoalbum C. B. Wolf 1927-4-3 259 San Mateo 1 mile above La Honda. Comment
  CAS-BOT-BC344857  Gnaphalium palustre Peter Rubtzoff 1975-10-11 8423 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UCR122973  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6775 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-BC304502  Grindelia hirsutula Roxana Stinchfield 1915-9-19 252 San Mateo Santa Cruz Mountain Peninsula. Palo Alto Comment
  CAS-BOT-BC304528  Grindelia hirsutula Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  CAS-BOT-BC304536  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  CAS-BOT-BC304544  Grindelia hirsutula W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Comment
  CAS-BOT-BC304548  Grindelia hirsutula A. A. Heller 1907-5-28 8575 San Mateo Above Crystal Springs on the Half Moon Bay road 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-BC304561  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  JEPS41871  Grindelia hirsutula W. L. Jepson 1896-1 San Mateo Santa Cruz Mountains Comment
  POM359076  Grindelia hirsutula L. S. Rose 1948-11-29 48243 San Mateo Mills Field. Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  CAS-BOT-BC304524  Grindelia hirsutula W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. South side Montara Mt Comment
  JROH817  Grindelia hirsutula John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  RSA0110999  Grindelia stricta var. angustifolia E. A. Purer 1933-8-26 5525 San Mateo Along highway. [No further location information.] Comment
  POM181504  Grindelia stricta var. platyphylla H. F. Copeland 1928-2-25 982 San Mateo Montara. Comment
  POM204326  Grindelia stricta var. platyphylla I. L. Wiggins 1929-7-4 3799 San Mateo Pescadero Beach 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
  CAS-BOT-BC309529  Helenium puberulum R. E. Frenkel 1963-12-7 332 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  CAS-BOT-BC309531  Helenium puberulum John H. Thomas 1976-10-7 18392 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  UC1537048  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo along Skyline Blvd. to Salada Beach Road 304 Comment
  JROH851  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1831  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1834  Helianthemum scoparium John H. Thomas 1961-6-14 9537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305924  Helminthotheca echioides Ira L. Wiggins 1977-7-23 22188 San Mateo Bed of San Francisquito Creek, ca 150 m upstream from Pope Street bridge, San Mateo County side of center line, Menlo Park Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1167  Helminthotheca echioides John H. Thomas 1970-7-5 15668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC313452  Hemizonia congesta subsp. luzulifolia John H. Thomas 1961-8-27 9691 San Mateo Colma, near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC314924  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1941-10-24 41470 San Mateo Belmont 6 Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  CAS-BOT-BC314948  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  CAS-BOT-BC314928  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-6-13 s.n. San Mateo Near Millbrae, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  POM53161  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-5-1 686 San Mateo Crystal Springs Lake. Comment
  POM360313  Hemizonia luzulifolia D. D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  RSA187337  Hesperolinon congestum Fay Gilbert 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  SJSU7855  Hesperolinon congestum J. R. Verbarg 1955-5-14 San Mateo Redwood City Hills back of Redwood City Comment
  JROH2922  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 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-BC422604  Hesperomecon linearis A. D. E. Elmer 1903-5-1 4594 San Mateo San Bruno Hills Comment
  JROH3675  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  JROH5895  Heteromeles arbutifolia M. Ray 1982-3-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail leading to the west side of the dam. Comment
  JROH904  Heterotheca grandiflora John Hunter Thomas 1982-9-23 21163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420887  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  CAS-BOT-BC420890  Heuchera micrantha var. diversifolia W. R. Dudley 1894-7-30 s.n. San Mateo La Honda Road Comment
  CAS-BOT-BC420892  Heuchera micrantha var. diversifolia George Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC424378  Heuchera micrantha var. hartwegii Walter & Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2; San Bruno Mountain Comment
  RSA0063102  Heuchera micrantha var. hartwegii G. Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  CAS-BOT-BC55439  Hirschfeldia incana Saichi Kawahara 1968-6-15 440 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  JROH5207  Holcus lanatus John H. Thomas 1973-6-15 16837 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112370  Holodiscus discolor W. R. Dudley 1894-7-7 s.n. San Mateo Santa Cruz Peninsula. Near summit of Mountains, Bear Gulch Road. Comment
  RSA176728  Holodiscus discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH3687  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  CAS-BOT-BC150066  Holodiscus discolor var. discolor Lucile Roush 1918-3-31 s.n. San Mateo Sierra Morena Comment
  RSA185013  Hordeum brachyantherum L. S. Rose 1963-4-27 63001 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  SEINET6205028  Hordeum brachyantherum L. S. Rose 1963-1 63001 San Mateo Skyline Blvd, W of San Mateo Comment
  CAS-BOT-BC284679  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1463 San Mateo Belmont Comment
  CAS-BOT-BC284680  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1932-5-6 1465 San Mateo Belmont Comment
  CAS-BOT-BC284682  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC289536  Hordeum brachyantherum subsp. californicum Elizabeth McClintock; Paul Reeberg 1989-5-31 s.n. San Mateo Near seep above Robertson School, Daly City, San Bruno Mountains 91 Comment
  SEINET10859740  Hordeum marinum subsp. gussoneanum Delzie Demaree 1932-5-16 Demaree 9139 San Mateo Spring valley lakes. Comment
  SEINET10831781 Image available Hordeum murinum Delzie Demaree 1932-3-27 Demaree 8957 San Mateo Moist bottoms. La Honda Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC289394  Hordeum murinum subsp. glaucum George Oberlander 1950-4-22 798 San Mateo South boundary, San Francisco Watershed Reserve Comment
  POM352478  Hordeum murinum subsp. leporinum Edith A. Purer 1933-7-27 5372 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC271356  Hordeum vulgare William R. Dudley 1895-6-1 s.n. San Mateo Near Palo Alto Comment
  RSA138172  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  JEPS44582  Horkelia californica Dr. L. M. Newlon 1921-1 250 San Mateo Above Salata to Mussell Rock (Seashore) Comment
Read comments
1
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  CAS-BOT-BC143928  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC144013  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  SJSU16037  Hosackia gracilis Toni Corelli, John Rawlings 2016-4-29 1766 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC400966  Hypericum anagalloides Elizabeth McClintock; Paul Reeberg No date on label s.n. San Mateo San Bruno Mountains Comment
  UCD160241  Hypericum canariense Christopher Dillis 2015-5-15 4 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
  CAS-BOT-BC311399  Hypochaeris glabra John Thomas Howell 1926-4-24 1926 San Mateo Daly City Comment
  SEINET11259798 Image available Hypochaeris radicata K. Thorne, J. Chandler 1986-7-25 4918 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach. Comment
  CAS-BOT-BC311487  Hypochaeris radicata W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. So. Cahill Ridge Comment
  CAS-BOT-BC311491  Hypochaeris radicata E. N. Crane 1915-5-1 s.n. San Mateo Burlingame Comment
  JROH935  Hypochaeris radicata John Hunter Thomas 1983-7-7 22821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14212  Hypochaeris radicata C. B. Wolf 1926-10-19 199 San Mateo East slope of La Honda Grade; Santa Cruz Mts. Comment
  SEINET10560664  Hystrix californica Adolph D. E. Elmer Elmer 4700 San Mateo Crystal Springs Lake. Comment
  OBI33307  Ilex aquifolium Marcia Meissner 1965-5-7 5 San Mateo Growing in garden at 139 Scenic Dr., Redwood City Comment
  UCR266160  Ilex aquifolium A. C. Sanders 2015-12-22 41886 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail above April Brook 274 Comment
  UC143460  Iris douglasiana C. F. Baker 1902-3-22 343 San Mateo Crystal Springs Lake Comment
  RSA6296  Iris douglasiana D. D. Keck 1932-5-6 1486 San Mateo Hills just west of Millbrae Highlands 120 Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133660  Iris longipetala L. R. A. 1902-4-13 2337 San Mateo Lake San Andreas Comment
  CAS-BOT-BC133661  Iris longipetala George Oberlander 1950-4-2 587 San Mateo San Andreas Lake Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  JROH4429  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  POM185726  Isolepis cernua E. B. Copeland 1903-5-24 3258 San Mateo Montara Point. Comment
  POM267963  Isolepis cernua Jens Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point. Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  SD37602  Jaumea carnosa Edith A. Purer 1933-7-27 5367 San Mateo Pigeon Point Comment
  CAS-BOT-BC109970  Juncus Kellogg; Brannan 1870-6-1 s.n. San Mateo San Gregorio Creek. Comment
  CAS-BOT-BC109972  Juncus W. R. Dudley 1900-5-18 s.n. San Mateo Santa Cruz Peninsula. Near San Andreas Lake above keeper's house. Comment
  UCR254888  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10045 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction 213 Comment
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  UCR279852  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  SJSU15771  Juncus bufonius var. bufonius Toni Corelli 2010-6-1 632 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
  UC1101015  Juncus effusus subsp. pacificus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1589 San Mateo about 1 mi s Half Moon Bay Comment
  RSA494799  Juncus patens Lyman Benson 1930-4-17 2069 San Mateo Stanford University. 152 Comment
  UC1101087  Juncus phaeocephalus Verne Grant and Herbert L. Mason 1946-8-28 13086 San Mateo entrance to San Francisco County prison Comment
  UC1601800  Juncus phaeocephalus J. Burtt Davy 1893-6-22 756 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC210051  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9261 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210153  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9227 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA790997  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1979-7-26 9298 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS67075  Juncus phaeocephalus var. phaeocephalus J. B. Davy 1893-6-22 756 San Mateo Lake Pilarcitas Comment
  JROH4515  Juncus xiphioides John Hunter Thomas 1978-5-16 19219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16014  Juncus xiphioides John Rawlings, Ken Hickman 2016-5-26 1811 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4046  Kickxia spuria John Hunter Thomas 1981-9-24 20753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  UCD86030  Koeleria macrantha P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340705  Lactuca virosa Walter Knight; Irja Knight 1963-9-18 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC353465  Lactuca virosa Peter Rubtzoff; Roman Gankin 1975-9-11 8374 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC341631  Lagophylla ramosissima Margaret A. Barry 1937-6-22 168 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC341632  Lagophylla ramosissima LeRoy Abrams 1902-9-28 3003 San Mateo Portola Comment
  JROH958  Lagophylla ramosissima John H. Thomas 1961-4-29 9185 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341629  Lagophylla ramosissima James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC339091  Lasthenia californica John H. Thomas 1971-5-2 15825 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  POM361529  Lasthenia californica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UCSB18865  Lasthenia californica John Schulte 1963-4-26 96 San Mateo collected 3.0 mi SW, along Jasper Ridge, between Santa Clara Valley and Santa Cruz Mountains UC Stanford - Jasper Ridge, UCS 152 Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  JEPS89767  Lasthenia californica subsp. californica Dean W. Taylor 1989-3-30 10188 San Mateo ridge separating Guadalupe Valley from Vistacion Valley (Right-of way of easternmost set of PG&E high-voltage powerlines crossing crest of ne ridge of San Bruno Mountain); Santa Cruz Mountains, San Bruno Mountain Comment
  CAS-BOT-BC324426  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pescadero - Pebble Beach Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  UC194043  Lasthenia glabrata subsp. glabrata E. L. Greene 1886-4-5 San Mateo Belmont Comment
  CAS-BOT-BC355544  Lasthenia glabrata var. glabrata Edward Lee Greene 1883-5-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC368183  Lasthenia minor V. F. Hesse 1959-4-16 2589 San Mateo Pigeon Point 7 Comment
  SFV3758  Lasthenia minor B. J. McCaskill 1954-5-8 295 San Mateo Moss Beach. On bank above beach. Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  JROH2028  Lathyrus latifolius John H. Thomas 1962-7-15 9924 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. Comment
  SJSU1011  Lathyrus vestitus J. E. Hagerty 1950-5-6 San Mateo Corte Madera Cr 0.5 mi above Strawberry Bend Comment
  RSA152255  Lathyrus vestitus subsp. vestitus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  UCD106536  Lathyrus vestitus var. ochropetalus A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  UCR121561  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4972 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CDA31708  Lavatera arborea M. K. Beyers, G. F. Hrusa, P. Woods, D. Orozco 2010-4-17 s.n. San Mateo Brisbane: Underneath northbound Highway 101 exit (426B), adjacent to the Radisson Hotel s parking lot. Approximately, 700 feet northwest of San Francisco Bay s west shores. Comment
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  CAS-BOT-BC323159  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  SEINET11811294  Layia chrysanthemoides Unknown 1932-1 9101 San Mateo above Spring Valley Lake 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
  UC913051  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-BC321091  Layia gaillardioides Kellogg; Brannan 1890-5-31 s.n. San Mateo Redwoods Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  JROH983  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128529  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King Mt.; Plants of the Santa Cruz Mountain Peninsula. Comment
  RSA15482  Layia hieracioides L. S. Rose 1936-5-28 36309 San Mateo Emerald lake, W. of Redwood City 91 Comment
  CAS-BOT-BC327456  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  RSA0036458  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. In East Fork Colma Creek Canyon area. Comment
  UC913054  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo e of Salada; Skyline Boulevard 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
  CAS-BOT-BC382089  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC382222  Layia platyglossa Donald A. Johansen 1932-5-21 688 San Mateo One-half mile N of Pigeo Point Light HOuse Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1070  Layia platyglossa C. W. Sharsmith 1951-4-6 5827 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  CAS-BOT-BC382221  Layia platyglossa Donald A. Johansen 1932-5-21 687 San Mateo 1/2 mile north of Pigeon Point lighthouse. 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
  RSA18086  Lemna gibba Carl B. Wolf 1929-4-29 3662 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  CAS-BOT-BC527269  Lemna minuta Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo April Brook adjacent to Radio Road Comment
  CAS-BOT-BC527271  Lemna minuta W. R. Dudley 1909-10-4 s.n. San Mateo W. twin pond near Mussel Rock, Santa Cruz Mountain Peninsula Comment
  POM193860  Lemna valdiviana Roxana S. Ferris 1920-10-8 2100 San Mateo Santa Cruz Mountain peninsula: first mud lake, Coal Mine Ridge Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221533  Lepechinia calycina Lewis S. Rose 1937-5-23 37320 San Mateo Belmont 91 Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  RSA229653  Lepechinia calycina Andrew R. Moldenke, Harold N. Moldenke 1971-4-11 25184 San Mateo Jasper Ridge. Comment
  UC25890  Lepechinia calycina J. Burtt Davy 1893-6-17 813 San Mateo Belmont Comment
  CAS-BOT-BC89139  Lepidium didymum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountains. Crocker Hills. Near Guadalupe Road. Comment
  UCSB2284  Lepidium didymum Walker, Clifford 1954-4-20 San Mateo 100 yards from Ocean on cliff, 1 mi. S Half Moon Bay Comment
  CDA3808  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Boulevard., Burlingame 0 Comment
  JROH1538  Lepidium nitidum E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC12954  Lepidium strictum David D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC12952  Lepidium strictum George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve. On northern Cahill Ridge. Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  CAS-BOT-BC226600  Leptosiphon ambiguus J. H. Thomas 1949-4-1 214 San Mateo West of Redwood City Comment
  CAS-BOT-BC226601  Leptosiphon ambiguus Lewis S. Rose 1948-5-16 48115 San Mateo Emerald Lake, hills w. of Redwood City 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
  JROH5672  Leptosiphon androsaceus John Rawlings 2014-4-10 1274 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few feet uphill from trail 5 in serpentine prairie 124 Comment
  UCD14333  Leptosiphon androsaceus Marcy Dickerson 1983-4-23 110 San Mateo San Mateo Co., Jasper Ridge, Sanford Biological Preserve, within 1 mile of Westridge Road Entrance; Comment
  JROH5691  Leptosiphon bicolor John Rawlings 2015-4-7 1454 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  JROH3185  Leptosiphon liniflorus Elmer I. Applegate 1895-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH3190  Leptosiphon parviflorus John H. Thomas 1966-4-6 11551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD67317  Leptosiphon pygmaeus subsp. continentalis F. Howe 1967-4-14 San Mateo 7 miles from San Mateo on road to Half Moon Bay 399 Comment
  RSA0103659  Leptosiphon rosaceus E. B. Copeland 1903-5-24 3260 San Mateo Montara Point. Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC324071  Lessingia arachnoidea Peter H. Raven 1957-9-1 11301 San Mateo Along State Highway 5 (Skyline Blvd.) at Woodside Road Comment
  CAS-BOT-BC325500  Lessingia arachnoidea W. Spence 1960-7-2 552 San Mateo 1 mile north of Dam, Route 5, Crystal Springs Lake Comment
  SEINET3071639 Image available Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake. Comment
  UC1026397  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo slopes e Crystal Springs Lake Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1012  Lessingia glandulifera var. glandulifera Rachel Hays 1972-7-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1018  Lessingia glandulifera var. glandulifera John Hunter Thomas 1981-5-19 20608 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
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324181  Lessingia hololeuca W. R. Dudley 1902-9-21 s.n. San Mateo Whipple Road, near Crystal Springs Lakes Comment
  CAS-BOT-BC324182  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, W of Redwood City 152 Comment
  RSA176749  Lessingia tenuis John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  UC773784  Leymus X vancouverensis Frank W. Gould 1948-6-19 4716 San Mateo about 2 mi s Pescadero (sand dunes at high tide level) Comment
  CAS-BOT-BC273563  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo San Mateo, (toward Crystal Springs Lake) 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-BC272325  Leymus mollis John H. Thomas 1963-5-20 10148 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC272191  Leymus triticoides W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  JEPS85227  Lilaea scilloides Roy E. Buck and James A. West 1985-6-3 531 San Mateo 2.0 air km e Franklin Point (Cascade Ranch, along s side of Whitehouse Canyon Rd, e of first curve in from CA Hwy 1, ca 0.7 air km ne of Whitehourse Canyon Rd-CA 1 junction) 60 Comment
  CAS-BOT-BC451666  Lilaea scilloides L. R. Abrams 1909-4-27 s.n. San Mateo Near Crystal Lake Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  SEINET11763376  Lilaea scilloides H. L. Mason 1922-1 s.n. San Mateo Pigeon Pt Comment
  CAS-BOT-BC130796  Lilium pardalinum Ira L. Wiggins 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  UC2046448  Limonium californicum Michael Perlmutter 2011-10-2 s.n. San Mateo Coyote Point Marina. County of San Mateo Department of Parks. Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  JROH4057  Limosella acaulis John Hunter Thomas 1981-7-12 20709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC336384  Linanthus androsaceus unknown 491 San Mateo Colma, S.P.R.R. Colma Comment
  CAS-BOT-BC123068  Linanthus croceus Alice Eastwood 1899-5-2 s.n. San Mateo Near Pt. San Pedro (Blenheim) Comment
  SEINET3696412 Image available Linanthus filipes Lewis S. Rose 1932-4-10 32140 San Mateo Redwood City. Comment
  SEINET5629646 Image available Linum congestum Unknown 1907-1 8572 San Mateo Above Crystal Springs Comment
  SEINET10634275  Linum grandiflorum Robert A. Norris 1977-5-2 Norris 3570 San Mateo Several annuals occurring locally as escapes in disturbed gravelly ground by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  CAS-BOT-BC36073  Lithocarpus densiflorus var. densiflorus George Oberlander 1949-8-20 334 San Mateo Southern boundary, Cahill Ridge Comment
  JROH3892  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  CAS-BOT-BC436217  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC436223  Lithophragma heterophyllum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills, after Hesler farm entrance. Comment
  CAS-BOT-BC342465  Logfia gallica John H. Thomas 1955-4-6 4849 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  JROH735  Logfia gallica D. E. Breedlove 1971-5-31 19361 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH748  Logfia gallica John Hunter Thomas 1992-4-23 25158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC173829  Lolium multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC173830  Lolium multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC283224  Lolium multiflorum John H. Thomas 1971-5-2 15818 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC283228  Lolium multiflorum J. W. Tilden 1946-5-29 s.n. San Mateo 3 miles W of Redwood City on Jefferson Ave Comment
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  UCD66213  Lolium multiflorum Beecher Crampton 1962-6-11 6508 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road. Comment
  CAS-BOT-BC173843  Lolium perenne Peter Rubtzoff 1975-11-8 8436 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  RSA786667  Lolium perenne subsp. multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo San Bruno Mountains: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the NW corner of Fog Forest. Comment
  CAS-BOT-BC269175  Lolium temulentum W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Baden Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UC1327235  Lomatium caruifolium var. caruifolium John T. Doyan 1966-3-28 38 San Mateo near Radio Towers on top San Bruno Mountains Comment
  JROH263  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH266  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1980-5-1 19910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  UC144367  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 460 San Mateo Crystal Springs Lake Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287764  Lomatium macrocarpum Lyman Benson 1931-3-15 2636 San Mateo Emerald Lake, Redwood City Comment
  RSA212215  Lomatium macrocarpum L. S. Rose 1970-4-23 70031 San Mateo Black Mountain, Skyline Blvd, west of San Mateo 122 Comment
  UC1143019  Lomatium utriculatum H. S. Yates 1935-5-8 5210 San Mateo 2 mi. n. Langley Hill; Santa Cruz Quad. Comment
  POM132877  Lomatium vaginatum A. D. E. Elmer 1903-04 4794 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC240588  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  CHSC56976  Lonicera hispidula Steven Triano 1988-5-24 183 San Mateo Along W side of Old La Honda Road ca 0.8 mi S of Portola Road and 4.0 mi S of woodside. 201 Comment
  CAS-BOT-BC240603  Lonicera hispidula Carl B. Wolf 1931-11-5 1805 San Mateo Santa Cruz Mts. 2 mi. w. of La Honda 304 Comment
  RSA3893  Lonicera hispidula var. vacillans I. L. Wiggins 1929-6-4 3774 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC198555  Lotus Dorothy Sutliffe 1934-10-12 s.n. San Mateo On Ocean Shore Higheay 4 miles south of San Gregorio Comment
  CAS-BOT-BC198581  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco Comment
  UC1537095  Lotus benthamii Gordon H. True Jr. 1936-4-15 386 San Mateo canyon between San Gregorio and Pescasdero 30 Comment
  RSA107440  Lotus corniculatus L. S. Rose 1955-6-20 55107 San Mateo Pescadero 5 Comment
  UCR101648  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UC203061  Lotus humistratus A. D. E. Elmer 1903-5-1 4722 San Mateo Belmont Comment
  JEPS55903  Lotus scoparius Dr. L. M. Newlon 1921-7-30 249 San Mateo Salada Comment
  POM276637  Lotus wrangelianus Lyman Benson 1930-5-1 2052 San Mateo Stanford University. 107 Comment
  HSC24026  Ludwigia peploides subsp. peploides Mary Katherine Wicksten 1971-6-20 70 San Mateo San Francisquito Creek, by Oak Knoll School Comment
  JROH3080  Ludwigia peploides subsp. peploides M. Whitley 1990-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the boat ramp Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  CAS-BOT-BC60248  Lunaria annua J. H. Thomas 1965-4-29 10632 San Mateo San Bruno Mountain. Comment
  POM10879  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake. Comment
  UC81978  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake Comment
  SEINET10488359  Lupinus affinis Charles F. Baker 1902-4-6 Baker 473 San Mateo Crystal springs lake. Colonies frequent along banks and grassy slopes, Especially near borders of thickets Comment
  UCD105911  Lupinus albifrons Leslie Fenster 1964-3-22 11 San Mateo 3 miles up (south) Polhemus Road, Cahill Ridge. 152 Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-BC195796  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48467 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC196119  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1439 San Mateo South San Francisco, San Bruno Mountain, S.E. of cemeteries Comment
  CAS-BOT-BC196127  Lupinus albifrons var. collinus John Thomas Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  UC1084380  Lupinus albifrons var. collinus G. Thomas Robbins 1937-4-11 79 San Mateo Skyline Boulevard near County Jail San Francisco (San Francisco); s of San Francisco Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  CAS-BOT-BC8523  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  SBBG25081  Lupinus arboreus D. Myrick 1966-6-11 1447 San Mateo near Pescadero along Hwy 1 S of San Francisco Comment
  UC1543208  Lupinus arboreus Donald G. Nelson 1938-7-28 580 San Mateo Moss Beach Comment
  RSA705042  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 5371 San Mateo Two miles south of Pigeon Point Comment
  JROH2118  Lupinus bicolor John Hunter Thomas 1984-4-2 23273 3 H San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC155231  Lupinus bicolor A. A. Heller 1911-4-12 10251 San Mateo near Stanford University; near Stanford University Comment
  UC711948  Lupinus bicolor Charles Piper Smith 1908-4-13 1402 San Mateo near Cedro Cottage Stanford University (Stanford University) Comment
  UC73188  Lupinus bicolor Harley P. Chandler 1901-3-14 794 San Mateo Colma Comment
  SEINET10484976  Lupinus bicolor var. umbellatus David B. Dunn, Howard Brown 1946-5-15 Dunn 2597 San Mateo In meadow land in the bottom of a ravine about 50 ft. Deep with a small lake at One end. 1 Block n os sloat blvd. At vale ave. Growing with #2596 as one Colony but with flower size easily marking off #2596. Comment
  CAS-BOT-BC215065  Lupinus chamissonis Charles Piper Smith 1950-5-15 50134 San Mateo Highway 1, 0.4 miles N of Edgemar Comment
  RSA159408  Lupinus densiflorus var. densiflorus John H. Thomas 1961-5-14 9377 San Mateo Just north of dam on San Mateo Creek. 122 Comment
  RSA413555  Lupinus densiflorus var. densiflorus E. A. Purer 1933-8-25 5512 San Mateo Skyline Drive. Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  SD37885  Lupinus formosus var. formosus Edith A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  SEINET10490756  Lupinus formosus var. formosus Charles Piper Smith 1922-6-10 Smith 3548 San Mateo South san francisco-mountain road. Comment
  JROH5799  Lupinus latifolius var. latifolius John Rawlings 2016-4-4 1701 San Mateo Jasper Ridge Biological Preserve, Stanford University; Douglas Iris site 94 Comment
  UC311393  Lupinus microcarpus var. densiflorus A. D. E. Elmer May, 1903 4847 San Mateo Lake San Andreas Comment
  UC729631  Lupinus microcarpus var. densiflorus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road e Skyline Blvd. 304 Comment
  UCD35769  Lupinus microcarpus var. densiflorus Beecher Crampton 1962-6-11 6484 San Mateo 5 miles west of Belmont, jct. Skyline Blvd. and Ralston Ave. Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  SBBG66998  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo confluence of Los Troncos and San Francisquito crks Comment
  SEINET10490142  Lupinus nanus subsp. latifolius William R. Dudley 1894-4-11 Dudley UMO 67693 San Mateo Near menlo park reservoir. Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  RSA178676  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 s.n. San Mateo Junction of Los Trancos and San Francisquito Creek. Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  RSA177074  Lupinus variicolor John H. Thomas 1964-6-19 10432 San Mateo Near Pigeon Pt. Lighthouse. Comment
  UC127021  Lupinus variicolor Alice Eastwood April 1896 San Mateo bet. Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  UC201947  Lupinus variicolor A. D. E. Elmer May, 1903 4709 San Mateo San Pedro Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  RSA134069  Lupinus variicolor W. R. Dudley 1900-3-17 s.n. San Mateo Grade south side Montara Mts. Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  SEINET12154794  Lupinus variicolor M. T. Doutt 1931-1 422 San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH4529  Luzula comosa var. comosa John Hunter Thomas 1982-3-12 20805 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4531  Luzula comosa var. comosa John Hunter Thomas 1983-2-21 21282 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72371  Luzula subsessilis Harley P. Chandler 1901-3-15 805 San Mateo west of Colma Comment
  UCD164090  Luzula subsessilis Peter Rubtzoff 1978-4-2 9151 San Mateo San Bruno Mtns. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon. Comment
  JEPS42812  Lysichiton americanus Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
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Sep 6 2011
  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
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  CAS-BOT-BC342589  Madia Cherie Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JEPS40339  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo between Crystal Springs Lake and San Mateo Comment
  CAS-BOT-BC343899  Madia elegans Delzie Demaree 1933-8-25 10519 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC343907  Madia elegans Bruce G. Baldwin 1985-10-19 547 San Mateo 3.3 miles south of junction with California State Highway 92 along Canada Road Comment
  CAS-BOT-BC343916  Madia elegans Rosenbaum 1916-9-30 s.n. San Mateo Near San Mateo Co. Almshouse Comment
  CAS-BOT-BC344495  Madia exigua James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1044  Madia exigua John H. Thomas 1969-5-28 15090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1059  Madia exigua John Hunter Thomas 1983-6-2 22333 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS112942  Madia gracilis Dean W. Taylor 1994-5-10 14275 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH1090  Madia gracilis John Hunter Thomas 1987-5-19 24295 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM298352  Madia gracilis D. D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  CAS-BOT-BC343325  Madia gracilis Gwendolan Newell 1914-6-18 s.n. San Mateo Raymonds ranch, Los Gatos Comment
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Oct 28 2021
  CAS-BOT-BC345114  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  JROH1099  Madia sativa John H. Thomas 1967-11-5 14132 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD40001  Madia sativa Edith A. Purer 1933-7-27 5347 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC511333  Maianthemum dilatatum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, exposed slopes below top of mountain Comment
  JROH4702  Maianthemum racemosum John Hunter Thomas 1989-6-17 24777 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512106  Maianthemum racemosum subsp. amplexicaule George Oberlander 1950-3-18 583 San Mateo Pilarcitos Canyon; San Francisco Watershed Reserve Comment
  CHSC57106  Maianthemum stellatum Steven Triano 1988-5-24 208 San Mateo Along s side of Old La Honda Road ca 0.3 mi e of its jct. With La Honda Road. 365 Comment
  RSA176415  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  SEINET3992115  Maianthemum stellatum Unknown 1941-3-12 41024 San Mateo Skyline Blvd. W. of San Bruno 152 Comment
  UC138331  Malacothamnus aboriginum J. W. Congdon 1902-7-20 San Mateo Spring Valley Comment
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Aug 31 2006
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  UC109094  Malacothamnus hallii Alice Eastwood 1891-10-27 San Mateo Hills back of Belmont Belmont 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
  UCR122979  Malva nicaeensis George K. Helmkamp, E. A. Helmkamp 2001-6-2 6789 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
  CHSC57018  Malva parviflora Steven Triano 1988-5-24 188 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  SJSU11761  Marah fabacea S. Anderson 1962-4-15 San Mateo Burlingame Hills near Burlingame Comment
  UC635685  Marah oregana H. L. Mason 1927-4-23 3681 San Mateo between La Honda and Pescadero Creek Comment
  CAS-BOT-BC67841  Marsilea vestita George Oberlander 1951-1-1 s.n. San Mateo San Francisco Watershed Reserve Comment
  JROH5901  Matricaria discoidea M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to Searsville Lab Comment
  CAS-BOT-BC238366  Maurandella antirrhiniflora James Henrickson 1973-5-27 10234 San Mateo 6 (air) miles SE of Kelso in limestone canyon above Cornfield Spring in N side of Providence Mts. Comment
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Oct 4 2017
  UC674717  Meconella californica Gregory Lyon 1934-3-17 41 San Mateo .75 mi e Skyline Blvd (Buri-Buri Ridge); Caroland's Tract 121 Comment
  CAS-BOT-BC422676  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road from San Mateo to Crystal Springs Reservoir Comment
  CAS-BOT-BC422684  Meconella californica Miss E. Cannon 1893-3-1 s.n. San Mateo South San Francisco Comment
  JROH2177  Medicago arabica John H. Thomas 1976-10-16 18421 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  SJSU4256  Medicago lupulina E. J. Dalton 1962-10-7 39 San Mateo San Gregorio Cr 2 mi SW of La Honda 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-BC157960  Medicago polymorpha var. polymorpha Peter Rubtzoff 1978-7-8 9235 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  JROH5299  Melica californica W. H. Lennihan 1990-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right side of trail leading from serpentine hill to oak woodlands. Comment
  CAS-BOT-BC281409  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. S slope of Montara Mt Comment
  JEPS48479  Melica imperfecta James G. Daly 1934-1 310 San Mateo upper Alpine Creek road (San Gregorio Creek watershed); San Gregorio Creek Comment
  UCD87869  Melica imperfecta P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  RSA135746  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo South slope of Montara Mt. Comment
  CAS-BOT-BC264187  Melica subulata George Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264250  Melica torreyana W. R. Dudley 1894-8-13 s.n. San Mateo Devil's Canyon, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264252  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo By road up Kings Mt., Santa Cruz Mountain Peninsula Comment
  JROH5314  Melica torreyana John H. Thomas 1970-4-29 15615 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD88813  Melica torreyana A. A. Beetle 1942-6-11 3600 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC264251  Melica torreyana W. R. Dudley 1900-3-18 s.n. San Mateo By road to Jersey Farm, Santa Cruz Mountain Peninsula Comment
  UCD163783  Melilotus indicus Peter Rubtzoff 1988-6-9 9923 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the 'Saddle' area, east of Saddle Trail junction. Comment
  JROH2804  Mentha pulegium M. N. Paulson 1914-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CDA20054  Mentha pulegium L. Kuwahara 2002-10-9 PDR 064652 San Mateo San Francisco Bay Area; Along dam of reservoir at Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA135750  Mercurialis annua John H. Thomas 1955-11-9 5502 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
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Aug 8 2010
  CDA4875  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  UCD142326  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  UCD148357  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo east fence line, Sanchez Adobe House, south side of Linda Mar Blvd., Pedro Valley. Comment
  CAS-BOT-BC438138  Mesembryanthemum nodiflorum T. Winfield 1973-10-10 1222 San Mateo San Francisco Bay: Redwood City Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola 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
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348569  Micropus californicus var. californicus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH1133  Micropus californicus var. californicus John Hunter Thomas 1988-5-3 24437 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  UCD69081  Microseris douglasii P. Rodriguez-Rojo 1997-5-31 San Mateo Edgewood County Park. Serpentine annual grasslands. UTM: 10EM6347 200 Comment
  JROH1137  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4994 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent grassy slopes Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. Comment
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  CAS-BOT-BC349144  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  JROH1155  Microseris douglasii subsp. tenella John Rawlings, Ann Lambrecht 2007-4-18 1040 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F in Area H. 170 Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  UC50013  Microseris douglasii subsp. tenella E. L. Greene 1886-5-9 San Mateo Belmont Comment
  UC518013  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  JEPS127932  Mimulus aurantiacus Adam C. Schneider 2013-5-17 184 San Mateo Crystal Springs Reservoir Comment
  HSC20677  Mimulus aurantiacus var. aurantiacus P. A. Murphy 1965-4-16 27 San Mateo Ca. 22 mi. from Half Moon Bay on the Higgins Canyon Rd. Comment
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Jul 29 2015
  JEPS85570  Mimulus aurantiacus var. aurantiacus Craig Dremann 1986-8-30 321 San Mateo near La Honda (Highway 84 (Woodside-La Honda Road), near mile 6.68) Comment
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  UCD122291  Mimulus aurantiacus var. aurantiacus June McCaskill 1954-5-8 298 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. 883 Comment
  RSA164764  Mimulus aurantiacus var. aurantiacus Wesley O. Griesel 1963-6-20 814 San Mateo Road from Palo Alto to State Hwy #5 Comment
  RSA217981  Mimulus guttatus Walter Knight, I. Knight 1963-7-14 274 San Mateo Base of Quarry 2. San Bruno Mtn. Comment
  SEINET8374162  Mimulus guttatus A. D. E. Elmer 1903-1 4857 San Mateo Crystal Springs Lake. Comment
  UCD122861  Mimulus primuloides Clyde Elmore 1967-9-14 s.n. San Mateo The Sequoias (Lutheran retirement community), off Portola Road, Woodside. Comment
  CAS-BOT-BC174578  Minuartia californica Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC388826  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  POM308671  Minuartia douglasii Florence Danforth 1943-5-7 2388 San Mateo Jasper Ridge, above Searsville Lake. Comment
  SJSU12767  Moehringia macrophylla S. L. Jones 1986-4-6 85 San Mateo saddle betweem San Pedro Mt & Montara Mt, Pacifica 274 Comment
  CAS-BOT-BC214080  Monardella villosa Margaret A. Barry 1937-6-22 158 San Mateo Coal Mine Ridge 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
  RSA176713  Monardella villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC214062  Monardella villosa W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214073  Monardella villosa George Oberlander 1949-6-25 219 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC220664  Monardella villosa Y. Henderson 1920-5-31 s.n. San Mateo Searsville Comment
  JEPS121451  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 127 San Mateo Crystal Springs Reservoir Comment
  JEPS127870  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 154 San Mateo Crystal Springs Reservoir Comment
  RSA0022814  Monardella villosa subsp. villosa Carl B. Wolf 1927-6-21 426 San Mateo East slope of Kings Mt. Comment
  CAS-BOT-BC445194  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  CAS-BOT-BC445198  Montia parvifolia H. L. Mason 1921-7-1 s.n. San Mateo Pescadero Creek Comment
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC508578  Muilla maritima John H. Thomas 1949-4-1 216 San Mateo West of Redwood City Comment
  CAS-BOT-BC508586  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  RSA485312  Myosotis sylvatica Dave wheat 1968-4-7 86 San Mateo 1 mile west of intersection of Calif. 84 and calif. 35, 5 mi. north of la Honda. Comment
  HSC13478  Myriophyllum sibiricum C. B. Wolf 1927-6-15 2173 San Mateo Along Skyline Blvd., 6-8 mi. S of San Francisco Comment
  UC1236536  Myriophyllum spicatum J. H. Thomas 1955-12-6 5513 San Mateo 5 and 10 feet deep at the southern end of San Andreas Lake. Comment
  CAS-BOT-BC260228  Nassella pulchra W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  UCD87671  Nassella pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS82912  Navarretia heterodoxa Roy E. Buck and Randall A. Morgan 1983-6-7 336 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of small watercourse); San Francisco Watershed Reserve 137 Comment
  SEINET3479173  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, West of Redwood City, Emerald Lake 120 Comment
  UC662623  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  JROH3199  Navarretia heterodoxa John H. Thomas 1963-6-23 10165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near exclosure on northern slope of ridge. Comment
  JROH3215  Navarretia squarrosa John Hunter Thomas 1982-7-3 21063 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  POM65127  Navarretia squarrosa Copeland 1903-6-5 3323 San Mateo Montara Point. Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC219474  Nemophila parviflora Alice Eastwood 1922-5-27 11325 San Mateo La Honda Comment
  SBBG41706  Nemophila parviflora J. T. Howell 1971-4-12 San Mateo Butano St Park, Santa Cruz Mtns Comment
  JROH4169  Nicotiana acuminata var. multiflora Ann Lambrecht, John Rawlings 2007-11-7 0038 San Mateo Jasper Ridge Biological Preserve, Stanford University. 115 Comment
  CAS-BOT-BC233463  Nicotiana glauca J. H. Thomas 1964-3-31 10293 San Mateo Bank of San Francisquito Creek at University Avenue Bridge, Palo Alto Comment
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  UCSC011284  Notholithocarpus densiflorus var. densiflorus Unknown 1972-5-31 s.n. San Mateo Example of herbivore damage Comment
  CAS-BOT-BC140424  Oemleria cerasiformis Elmer I. Applegate 1895-3-9 152 San Mateo Woodside Comment
  CAS-BOT-BC140428  Oemleria cerasiformis Margaret A. Barry 1938-5-1 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC140436  Oemleria cerasiformis D. E. Breedlove 1974-5-13 36201 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC140448  Oemleria cerasiformis Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC389684  Oemleria cerasiformis Jeanie Nieri 1953-1-31 s.n. San Mateo Huddart Park Comment
  JROH3715  Oemleria cerasiformis John Hunter Thomas 1985-4-25 23565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176762  Oemleria cerasiformis John H. Thomas 1963-4-17 10035 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto.Moist slope along road near Searsville Lake. Comment
  CAS-BOT-BC140444  Oemleria cerasiformis Mrs. Geo. H. C. Meyer 1915-3-1 s.n. San Mateo Easton Comment
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  UC873965  Oenothera elata subsp. hookeri L. R. Abrams and I. L. Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  JROH2989  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS126148  Orobanche californica subsp. californica Alison Colwell with A. Sanders 2004-7-24 04 -196 San Mateo Shelter Cove, near Pacifica Comment
  JROH3089  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  RSA184905  Orthocarpus erianthus var. roseus L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 122 Comment
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Mar 28 2016
  SEINET6205026  Orthocarpus erianthus var. roseus L. S. Rose 1965-1 65010 San Mateo N end of San Bruno Mtns Comment
  RSA516520  Orthocarpus floribundus W. L. Jepson 1919-4-19 8231 San Mateo S San Francisco. Comment
  RSA184977  Orthocarpus lithospermoides L. S. Rose 1966-5-2 66034 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  POM194754  Orthocarpus purpurascens var. latifolius D. D. Keck 1927-6-10 395 San Mateo Radio Station, Montara Point. 0 Comment
  POM319922  Orthocarpus pusillus Barbara Shervanick 1973-4-1 801 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  JROH298  Osmorhiza berteroi John Hunter Thomas 1986-5-1 23998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET244349  Osmorhiza chilensis David H. French 1968-4-12 2843 San Mateo Near Palo Alto coast (Pescadero) Road, 11.7 mi. E. of Pescadero. Comment
  RSA0089401  Oxalis articulata subsp. rubra Dean Wm. Taylor 2016-2-23 21612 San Mateo Moss Beach; western shoulder bank of Highway 1 on the western ROW edge as it parallels Vallenman Street. 18 Comment
  POM278934  Oxalis oregana Lyman Benson 1930-5-3 2108 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  RSA120752  Oxalis oregana S. S. Tillett, I. Sternback 1956-6-24 524 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC137426  Oxalis oregana C. F. B. 1902-3-18 325 San Mateo King's Mountain Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  RSA130345  Oxalis oregana Roxana Stinchfield 1914-2-28 s.n. San Mateo Hills back of Woodside Comment
  SEINET12182802  Oxalis oregana Unknown 1933-1 10394 San Mateo White House Creek Comment
  UCSB24631  Oxalis oregana Masere, Ann 1967-3-21 San Mateo Butano Creek in Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road on Canyon Road 106 Comment
  UCR51659  Oxalis pes-caprae 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
  UCSB11440  Oxalis pes-caprae Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on Halfmoon Bay to San Mateo Road 15 Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  LA14373  Parapholis incurva A. Hornay; 1932-5-29 sn San Mateo San Bruno Comment
  UC1101574  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-24 1566 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  JROH5342  Paspalum distichum W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper end of Searsville Lake. Comment
  JROH5346  Paspalum distichum John H. Thomas 1978-9-24 19340 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of dam. Comment
  RSA130980  Pedicularis densiflora A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  RSA22074  Pedicularis densiflora L. S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake. 152 Comment
  UCR136713  Pedicularis densiflora L. S. Rose 1948-3-31 48031 San Mateo San Francisco Bay Region, Millbrae Highlands 91 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
  JROH4105  Pedicularis densiflora John H. Thomas 1960-4-2 8562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA209451  Pedicularis densiflora R. L. A.; 1902-3-16 2278 San Mateo Woodside 60.0 Comment
  POM226859  Pedicularis densiflora L. R. Abrams 1914-3-1 5058 San Mateo Kings Mountain Road, Santa Cruz Mtns. 152 Comment
  RSA125830  Pedicularis densiflora G. R. Campbell 1956-4-4 1 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  RSA401968B  Pedicularis densiflora A. C. Life 1924-2-22 14599 San Mateo Kings Mt. Redwood Park. Huckleberry trail. 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
  SEINET5564051  Pedicularis densiflora H. S. Gentry 1931-1 15 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JEPS109941 Image available Pedicularis dudleyi Dean W. Taylor 2004-4-19 19058 San Mateo Portola State Park, roadcut just north of the park boundary sign, about 100 meters S of junction of Old Page Mill Road with Portola State Park road 182 Comment
  LA209494  Pedicularis dudleyi E. B. Copeland; 1982-4-9 707 San Mateo big basin of Pescadero creek Comment
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Jun 12 2020
  UCSC006899  Pedicularis dudleyi Randall Morgan 1988-6-5 1236 San Mateo Upper Escape Rd, Portola S.P. Comment
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  JROH1163  Pentachaeta alsinoides John Hunter Thomas 1989-5-9 24713 San Mateo Jasper Ridge Biological Preserve, Stanford University. [Along Rd. F] 166 Comment
  RSA0008522  Pentachaeta bellidiflora L. S. Rose 1948-3-31 48032 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  RSA0008523  Pentachaeta bellidiflora Susan Sommers, Toni Corelli 1983-4-2 s.n. San Mateo W of middle bend in Hwy 280, S of Edgewood Road overcrossing. 122 Comment
  CAS-BOT-BC355896  Pericallis hybrida Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Across road from KRON*TV Comment
  JROH315  Perideridia kelloggii John Hunter Thomas 1991-8-4 25077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5974  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-9-12 2294 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence Bear Creek, Corte Madera Creek, and San Francisquito Creek 71 Comment
  JROH3286  Persicaria punctata John Hunter Thomas 1991-11-21 25101 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing of San Francisquito Creek. Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  POM65426  Phacelia divaricata C. F. Baker 1902-3-30 432 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC258935  Phalaris aquatica John H. Thomas 1968-12-18 14871 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  JROH5353  Phalaris aquatica John H. Thomas 1973-6-15 16839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259006  Phalaris californica Javier Penalosa 1963-3-30 2737 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  JEPS101195  Phalaris californica Dean W. Taylor 1987-8-20 9313 San Mateo Cascade Ranch State Park, between Whitehorse Creek and Cascade Creek, at crest of north facing hil 188 Comment
  POM199083  Phalaris californica A. D. E. Elmer 1903-06 4699 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC250640  Phalaris minor J. H. Thomas 1962-5-12 9861 San Mateo Franklin Point Comment
  CAS-BOT-BC250642  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  RSA17944  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  JROH5855  Phalaris paradoxa Herb Dengler 1980-6-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ca. 100 yards due N. of 2nd enclosure Comment
  UC52847  Phlox gracilis J. Burtt Davy Jun 21 1893-Jun 23 1893 1044 San Mateo Pilarcitos Lake and Canyon Comment
  UC2056117  Phyllospadix scouleri K. Dickey 2015-6-18 San Mateo Pescadero, beds south of promontory Comment
  UC1974571  Phyllospadix torreyi Kristen Kusic 2002-11-21 San Mateo Pigeon Point Comment
  CAS-BOT-BC452027  Phyllospadix torreyi Duncan M. Porter 1960-5-12 s.n. San Mateo At the foot of Beach Street, Moss Beach. Comment
  JROH3729  Physocarpus capitatus John Hunter Thomas 1981-4-5 20281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UC1206475  Physocarpus capitatus Le Roy Abrams 1902-5-4 2397 San Mateo foothills near Redwood Comment
  HSC23884  Pickeringia montana Mary Katherine Wicksten 1971-6-15 18 San Mateo Huddart Park near horse ring Comment
  SEINET12151537  Pickeringia montana J. I. McMurphy 1906-1 50 San Mateo King's Mtn., Santa Cruz Mtns 457 Comment
  JROH2199  Pickeringia montana var. montana John H. Thomas 1973-5-5 16765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC136528  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137313  Piperia elegans Peter Rubtzoff 1951-10-2 812 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137319  Piperia elegans Phillip C. Wheeler 1965-5-12 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCSC008616  Piperia transversa Randall Morgan 1989-1-1 322 -P San Mateo Jamison Creek Road Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  CAS-BOT-BC228135  Plagiobothrys chorisianus Josephine D. Randall 1907-7-23 12 San Mateo The Santa Cruz Peninsula. Near Crystal Springs Lake 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
  POM190562  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  RSA589903  Plagiobothrys chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo Near Cyrstal Springs Reservoir Comment
  RSA6421  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  SDSU5438  Plagiobothrys chorisianus D. F. Howe 1969-6-6 4640 San Mateo 18.5 miles north of San Mateo - Santa Cruz Co. line on the # 1. Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  JROH1427  Plagiobothrys nothofulvus John H. Thomas 1975-4-5 17714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA8609  Plagiobothrys nothofulvus I. L. Wiggins 1933-4-17 6651 San Mateo Emerald lake Hills 2 miles W of Redwood City. Comment
  JROH3107  Plantago erecta John H. Thomas 1955-5-6 5006 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3116  Plantago erecta John Hunter Thomas 1980-5-6 19929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3118  Plantago erecta John Hunter Thomas 1981-4-27 20508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23935  Plantago erecta Mary Katherine Wicksten 1971-8-25 214 San Mateo Huddart Park Comment
  RSA283962  Plantago erecta Arthur L. Cohen 1935-4-21 631 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC164028  Plantago major Peter Rubtzoff 1975-10-11 8424 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, NW of Fog Forest 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
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  UCD124622  Plantago maritima G. Thomas Robbins 1953-8-29 3617 San Mateo Just south of the Olympic Golf Club and the San Francisco City and County line. Comment
  UC136736  Plantago maritima var. californica Dr. E. B. Copeland 1903-6-5 3331 San Mateo Montara Point Comment
  RSA18360  Platanthera leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, S of Pescadero. Comment
  CAS-BOT-BC92010  Platystemon californicus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  CAS-BOT-BC92016  Platystemon californicus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo. Comment
  CAS-BOT-BC92018  Platystemon californicus A. A. Heller 1907-4-20 8445 San Mateo Near Lake Merced. Comment
  POM149360  Platystemon californicus var. californicus A. D. E. Elmer 1903-06 4853 San Mateo Crystal Springs Lake. Comment
  UC912455  Plectritis brachystemon Herbert L. Mason 1927-4-23 3689 San Mateo between La Honda and Pescadero Creek Comment
  JROH4249  Plectritis macrocera John H. Thomas 1969-4-20 14896 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC766305  Plectritis macrocera R. F. Hoover 1941-4-23 4908 San Mateo Redwood City Comment
  JEPS67916  Pleuropogon californicus L. R. Heckard and J. H. Thomas 1972-4-16 2900 San Mateo 1 1/2 mi s of Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada Road (private)) 121 Comment
  CAS-BOT-BC260964  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-6-1 4848 San Mateo Milbrae Comment
  CAS-BOT-BC261645  Poa annua Peter Rubtzoff 1988-5-3 9910 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  JROH5397  Poa annua John H. Thomas 1967-5-12 12873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD163746  Poa annua Peter Rubtzoff 1988-5-3 9911 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, east of Saddle Trail Junction. Comment
  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-BC243114  Poa secunda subsp. secunda Ned Cahill 1974-5-30 308 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City 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
  JROH5676  Poa secunda subsp. secunda John Rawlings 2015-3-15 1459 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 160 Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  CAS-BOT-BC244244  Poa unilateralis A. D. E. Elmer 1900-4-1 2393 San Mateo Spanishtown Comment
  CAS-BOT-BC244255  Poa unilateralis Javier Penalosa 1963-3-30 2755 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, NW of power lines 304 Comment
  CAS-BOT-BC244248  Poa unilateralis W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Montara Mountain Comment
  JROH2856  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  UC23974  Polemonium carneum C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  JROH1710  Polycarpon tetraphyllum var. tetraphyllum John Hunter Thomas 1983-7-7 22827 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH5958  Polycarpon tetraphyllum var. tetraphyllum John Rawlings 2017-6-5 2098 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road D, ~20 yards west of its intersection with Road E 157 Comment
  CAS-BOT-BC166914  Polygonum arenastrum Peter Rubtzoff 1975-11-8 8437 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, northwest of Fog Forest. Comment
  CDA2829  Polygonum arenastrum Buchanan 1960-4-28 4107 San Mateo Harbor Blvd. & Freeway, Redwood City. 0 Comment
  JEPS81639  Polygonum aviculare subsp. aviculare J. C. Hickman 1981-7-21 1005 San Mateo Ano Nuevo Reserve; se edge Comment
  JROH3261  Polygonum aviculare subsp. depressum John Hunter Thomas 1977-6-16 18795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5583  Polygonum aviculare subsp. depressum John Rawlings 2013-7-16 1192 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards downstream from the Low Flow Crossing, San Francisquito Cr. 80 Comment
  CAS-BOT-BC414234  Polygonum aviculare subsp. depressum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UCD164344  Polygonum aviculare subsp. depressum Peter Rubtzoff 1977-4-16 8953 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA176406  Polygonum coccineum John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC109243  Polygonum paronychia Robert Robertson 1954-5-1 120 San Mateo Pebble Beach. 4 Comment
  RSA169347  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo Kings Mountain 610 Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  CAS-BOT-BC76804  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  CAS-BOT-BC72111  Polypodium scouleri L. R. Abrams 1926-5-26 11217 San Mateo San Bruno Hills near Daly City Comment
  UCD150642  Polypodium scouleri Collector unknown 1974-5-30 28 San Mateo San Bruno Mtn. Radio Rd., before first radio station, and west of Radio Rd. below first radio station. On roadcut. 365 Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  UC1100394  Polypogon interruptus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1611 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  UC39742  Polypogon interruptus Michener and Bioletti 1893-6-20 133 San Mateo L. Pilarcitos Comment
  CAS-BOT-BC237349  Polypogon monspeliensis L. R. Abrams; I. L. Wiggins 1939-6-3 432 San Mateo Ano Nuevo Point Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  JROH5608  Polypogon monspeliensis John Rawlings 2013-5-28 1210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small drainage west of Goya Gate. 177 Comment
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
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Nov 1 2021
  RSA430495  Polystichum dudleyi Lyman Benson 1934-8-19 6115 San Mateo La Honde Grade, Santa Cruz Mountains, transition zone 305 Comment
  SBBG51403  Polystichum dudleyi J. Doty 1969-3-27 609 San Mateo N side of St Hwy 84, ca. 50' W of Bridge No 35-165, ca. 6 mi E of St Hwy 1 Comment
  UC397065  Polystichum dudleyi unknown 1929-1 San Mateo 8 mi by road above Pescadero (Pescadero Creek) Comment
  CAS-BOT-BC76613  Polystichum munitum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Horseshoe Ridge Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  CAS-BOT-BC105564  Populus trichocarpa J. Ed. McClellan; Bonnie McClellan 1976-3-24 s.n. San Mateo Pilarcitos Creek (west of the Coast Highway) at Half Moon Bay Comment
  JROH3843  Populus trichocarpa John Hunter Thomas 1983-7-7 22818 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223174  Populus trichocarpa S. S. Berry 1909-2-27 s.n. San Mateo Near Los Francos Creek. 46 Comment
  CAS-BOT-BC257679  Potamogeton illinoensis Peter Rubtzoff 1965-10-19 5664 San Mateo Pilarcitos Lake. Comment
  UCR141402  Potamogeton pectinatus 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-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  POM193947  Potamogeton pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Near boat landing, club house Capital Springs Reservoir Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SEINET5568963  Potentilla glandulosa H. S. Gentry 1931-1 83 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC516349  Prosartes hookeri J. H. Thomas 1954-4-3 3819 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC517386  Prosartes smithii Mrs. Boot 1940-4-7 1731 San Mateo Canyon near Half Moon Bay and Skyline Highway junction Comment
  CAS-BOT-BC158585  Prunus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo On ridge above Bitter Cherry Ravine Comment
  POM140371  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake. Comment
  UC136492  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC154499  Prunus ilicifolia Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC154504  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
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Sep 19 2011
  CAS-BOT-BC156360  Prunus virginiana var. demissa Margaret A. Barry 1937-5-15 113 San Mateo Woods on Coal Mine Ridge Comment
  HSC5682  Pseudognaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH761  Pseudognaphalium californicum John H. Thomas 1975-5-26 17914 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356856  Pseudognaphalium californicum George Oberlander 1949-5-13 152 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  HSC23946  Pseudognaphalium luteoalbum Mary Katherine Wicksten 1971-6-16 13 San Mateo Huddart Park; dry bank by horse ring Comment
  JEPS33995  Pseudognaphalium ramosissimum James G. Daly 407 San Mateo Upper Mindego canyon Santa Cruz Mts., San Gregorio watershed, Upper Mindego canyo Comment
  CAS-BOT-BC357504  Pseudognaphalium ramosissimum Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. The Great Meadow adjacent to upper Colma Canyon Comment
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC344868  Pseudognaphalium stramineum Peter Rubtzoff 1975-10-11 8422 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH810  Pseudognaphalium stramineum John Hunter Thomas 1981-7-12 20686 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  CAS-BOT-BC361565  Pseudognaphalium stramineum W. R. Dudley 1896-11-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Spanish Town Comment
  POM25381  Pseudotsuga menziesii A. D. E. Elmer 1903-04 4562 San Mateo Kings Mountain. Comment
  NY63873  Pseudotsuga menziesii var. menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga 685.8 Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1189  Psilocarphus tenellus John Hunter Thomas 1983-5-23 22251 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  CAS-BOT-BC72656  Pteridium aquilinum Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  CAS-BOT-BC72658  Pteridium aquilinum Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo above Hillside Blvd., South San Francisco Comment
  JROH3288  Pterostegia drymarioides John H. Thomas 1971-4-25 15787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421313  Pterostegia drymarioides Elizabeth McClintock; Paul Reeberg 1988-3-29 s.n. San Mateo San Bruno Mountains. Colma Canyon. 121 Comment
  CAS-BOT-BC460838  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  CAS-BOT-BC105390  Quercus Ned Cahill 1974-4-23 158 San Mateo near the inteersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC104280  Quercus X morehus James B. Roof 1965-4-25 s.n. San Mateo Sant Bruno Mountain, On top of ridge, N side of road, toward Brisbane power lines Comment
  CAS-BOT-BC104281  Quercus X morehus G. Ward 1941-4-12 s.n. San Mateo Sant Bruno Hills Comment
  CAS-BOT-BC105387  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, junction of Alpine and Great Round road, in a few yards E of junction of Corte Madera & Comment
  CAS-BOT-BC61705  Quercus agrifolia Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon, San Bruno Mountain Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  UCD45065  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W. of Redwood City hills. Alt. ca. 400ft. Comment
  UCD45079  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 40 ft. tall. Huddart Park on NE factoring slope nr. Miwok Shelter. Ca. 1200 ft. elev. San Mateo County 365 Comment
  SEINET12027457  Quercus agrifolia L. S. Rose 1938-1 38313 San Mateo 122 Comment
  JROH2472  Quercus douglasii John H. Thomas 1977-4-28 18566 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  CAS-BOT-BC94272  Quercus durata Ned Cahill 1975-1-18 399 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC94274  Quercus durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 243 Comment
  JROH2478  Quercus durata var. durata W. R. Dudley 1901-1-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2491  Quercus durata var. durata John Hunter Thomas 1980-5-6 19936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  LA205320  Quercus kelloggii David D. Keck; 1932-3-6 1395 San Mateo Santa Cruz Mountains, La Honda road above Searsville Lake Comment
  RSA477345  Quercus kelloggii L. H. Jones 1909-3-3 s.n. San Mateo King's Mountain Road, Stanford University. 107 Comment
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Sep 22 2011
  CAS-BOT-BC62891  Quercus lobata W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  JROH2517  Quercus lobata John H. Thomas 1967-5-31 12945 San Mateo Jasper Ridge Biological Preserve, Stanford University; above lake Comment
  UCSB34854  Quercus lobata Gropp, K. 1959-4-8 San Mateo 2 Frederick Court, Menlo Park, front yard Comment
  SEINET12034640  Quercus lobata Unknown 1929-1 7290 San Mateo Kings Mtn Comment
  CAS-BOT-BC134783  Quercus wislizeni W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. In front of Iverson's house near Peter Creek Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  JEPS37568  Rafinesquia californica James G. Daly 318 San Mateo Santa Cruz Mts., San Gregorio watershed Comment
  CAS-BOT-BC389716  Ranunculus Sharon Rogers 1966-4-23 s.n. San Mateo Field east of Canada Road, between North and South Gates of Filoli Estate Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378530  Ranunculus californicus var. californicus Elizabeth McClintock 1965-3-28 s.n. San Mateo on grassy slope in flower garden adjacent to April Brook Comment
  CAS-BOT-BC378532  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, low growing on grassy slope above parking lot at top of mountain Comment
  CAS-BOT-BC378543  Ranunculus californicus var. californicus J. H. Thomas 1954-4-25 3994 San Mateo near intersection of Stanford and Mayfield Avenues in open field which is occasionally plowed; Stanford University campus Comment
  POM268180  Ranunculus californicus var. gratus Lyman Benson 1935-3-10 6251 San Mateo King's Mt. Road, Santa Cruz. San Francisco Bay, 122 Comment
  JROH3494  Ranunculus hebecarpus John Rawlings 2013-4-9 1158 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 11 through chaparral 144 Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  POM148961  Ranunculus lobbii A. D. E. Elmer 1903-04 s.n. San Mateo Alpine School House. Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  JROH3502  Ranunculus uncinatus John Rawlings 2013-4-16 1144 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  UC1121739  Rhamnus californica C. M. Belshaw 1935-1-25 1458 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  UC565409  Rhamnus californica Chas. M. Belshaw 1936-1-25 1458 San Mateo 2.8 mi w Woodside (Kings Mountain road); South Coast Range Comment
  CAS-BOT-BC55887  Rhamnus crocea J. I. McMurphy 1906-4-4 55 San Mateo Los Trancos Creek, Santa Cruz Mts. 182 Comment
  CAS-BOT-BC55890  Rhamnus crocea H. A. Dutton 1900-2-1 s.n. San Mateo unspecified Comment
  JROH3554  Rhamnus crocea E. H. Richardson 1906-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282946  Rhamnus crocea Lyman Benson 1937-7-25 8473 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UC592785  Rhamnus crocea unknown 1928-3-16 1540 San Mateo near Searsville Lake; Jasper Ridge Comment
  CAS-BOT-BC56666  Rhododendron occidentale W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC56668  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  JROH182  Rhus integrifolia Toni Corelli 2007-3-7 332 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Road F where it joins with Trail 17 182 Comment
  RSA44518  Ribes californicum L. S. Rose 1949-3-18 49007 San Mateo Hills west of Belmont. 91 Comment
  SBBG27519  Ribes californicum L. S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  CAS-BOT-BC93001  Ribes californicum var. californicum Walter Knight; Irja Knight 1965-3-21 963 San Mateo San Bruno Mountain. Near road at summit at head of Buckeye Canyon. Comment
  JROH2639  Ribes californicum var. californicum John H. Thomas 1964-4-7 10302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  RSA0021679  Ribes malvaceum L. S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  UC202789  Ribes menziesii A. D. E. Elmer April, 1903 4496 San Mateo Portola Comment
  RSA0021751  Ribes menziesii var. leptosmum D. D. Keck 1933-2-22 1986 San Mateo Sand Hill Road, near Stanford University. 61 Comment
  RSA0021754  Ribes menziesii var. leptosmum A. D. E. Elmer 1903-04 4496 San Mateo Portola. Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  RSA0021760  Ribes menziesii var. leptosmum W. R. Dudley 1904-3-27 s.n. San Mateo Devils Canyon, Mill Cr. Santa Cruz Mountains. [County not listed, but probably San Mateo] Comment
  JROH2669  Ribes menziesii var. menziesii John Hunter Thomas 1981-4-5 20283 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  JROH6179  Ribes menziesii var. menziesii John Rawlings, Rebecca Reynolds 2017-11-14 2305 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2, 400 m east of its intersection with Trail 5 99 Comment
  SEINET13942784 Image available Ribes sanguineum Lewis S. Rose 1955-1 55041 San Mateo Kings Mountain, alt 2000 ft 610 Comment
  CAS-BOT-BC144633  Ribes sanguineum var. glutinosum C. F. Baker 1902-1-15 241 San Mateo West side of King's Mt. Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  JROH2675  Ribes sanguineum var. glutinosum John H. Thomas 1968-3-17 14174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0019102  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-2-26 227 San Mateo Halfway up the La Honda Grade. Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  SEINET12220349  Ribes sanguineum var. glutinosum Unknown 1932-1 8934 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC168727  Ribes victoris Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH1210  Rigiopappus leptocladus John Hunter Thomas 1992-4-29 25169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC980030  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo hillsides above Emerald Lake (back of Redwood City) Comment
  RSA159406  Romanzoffia californica John H. Thomas 1961-5-14 9369 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC881303  Romanzoffia californica L. R. Abrams 1916-4-22 5582 San Mateo at the little upper lake Pilarcitos Canyon; Santa Cruz Mt.Peninsula, Pilarcitos Canyon Comment
  JROH1581  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18808 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta in Searsville Lake Comment
  SEINET11917917  Rosa californica J. C. McMurphy 1906-1 64 &35 San Mateo Santa Cruz Mts & Palo Alto Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC146700  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC146694  Rosa gymnocarpa W. R. Dudley 1896-4-17 s.n. San Mateo By Hallades Trail near wire cable between Portola and La Honda Road Comment
  CAS-BOT-BC146702  Rosa gymnocarpa J. H. Thomas 1950-4-27 1691 San Mateo Purisima Road near Skyline Blvd. Comment
  POM275418  Rosa gymnocarpa Lyman D. Benson 1931-5-10 2796 San Mateo Woodside. Santa Cruz Mtn Range. 427 Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  CAS-BOT-BC152871  Rubus parviflorus Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Above the quarry - San Bruno Mountain Comment
  CAS-BOT-BC152872  Rubus parviflorus W. S. Atkinson 1901-7-1 s.n. San Mateo Pescadero Cr., Santa Cruz Peninsula Comment
  UC706966  Rubus parviflorus Ira L. Wiggins 1939-8-12 9296 A San Mateo about 5 mi inland from coast (along banks of Gazos Creek); Gazos Creek Comment
  CDA26335  Rubus spectabilis R. J. Pummer 1992-6-8 San Mateo Farwell Nursery, Woodside. 0 Comment
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157071  Rubus ursinus L. R. Abrams 1914-10-14 5128 San Mateo [Tunitos Canon] Tunitas Canyon 121 Comment
  CAS-BOT-BC157072  Rubus ursinus L. R. Abrams 1914-10-14 5129 San Mateo [Tunitos Canon] Tunitas Canyon Comment
  CAS-BOT-BC157083  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC157089  Rubus ursinus J. Clausen 1948-5-9 2080 San Mateo Tunitas Creek road 121 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-BC389668  Rubus ursinus M. Wicksten 1968-6-20 s.n. San Mateo Memorial Park Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  POM139627  Rubus vitifolius A. D. E. Elmer 1903-06 4664 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC422094  Rumex acetosella George Oberlander 1949-4-9 59 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  UCSC007776  Rumex acetosella Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1101195  Rumex conglomeratus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1581 San Mateo about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC433357  Rumex crispus Cherie Wetzel 1969-6-20 885 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC433364  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo Comment
  CAS-BOT-BC433368  Rumex crispus J. H. Thomas 1949-4-2 222 A San Mateo Palo Alto Yacht Club. Comment
  UC1191273  Rumex maritimus Herbert L. Mason and Verne Grant 1946-8-28 13090 San Mateo pond between Santa Cruz and Daly City (on Highway 5) Comment
  UC127315  Rumex maritimus Miss Harriet A. Walker 1908-8-22 1539 San Mateo Granada Comment
  SEINET4182631  Rumex maritimus var. persicarioides K. Thorne, J. chandler 1986-7-25 4948 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  CAS-BOT-BC433817  Rumex pulcher David D. Keck 1932-5-6 1458 San Mateo Belmont Comment
  CAS-BOT-BC433823  Rumex pulcher Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  CAS-BOT-BC433830  Rumex pulcher Javier Penalosa 1963-3-30 2728 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF. 91 Comment
  SD39771  Rumex salicifolius Edith A. Purer 1933-7-27 5373 San Mateo Partially stabilized sand dunes, two miles south of Pigeon Point Comment
  JROH2220  Rupertia physodes John Hunter Thomas 1981-5-5 20542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM16737  Rupertia physodes A. D. E. Elmer 1903-06 4270 San Mateo Crystal Springs Lake. Comment
  SD27758  Rupertia physodes Carl B. Wolf 1927-5-31 414 San Mateo North end of Searsville Lake. Comment
  POM348838  Rupertia physodes E. S. Spalding 1928-8-3 s.n. San Mateo Pulgas Tunnel east side. Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CAS-BOT-BC454178  Ruppia maritima Ira L. Wiggins 1946-4-30 11199 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  SD146161  Ruta chalepensis G. K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Crk Watershed: Bean Hollow Rd 0.3 mi S of Pescadero Rd (SW of Pescadero). Slopes above Butano Crk. 60 Comment
  CDA38605  Rytidosperma caespitosum Eric Wrubel, Joe Woods 2011-7-5 NPS 19 San Mateo Pacifica. Golden Gate National Recreation Area, Sweeney Ridge Trail, 1/2 mile south of Vista College. 0 Comment
  UC1738942  Rytidosperma caespitosum Glenn Clifton 1992-8-4 San Mateo between Whitehorse Creek and Cascade Creek Santa Cruz Mountains, Cascade Ranch State Park 15 Comment
  CAS-BOT-BC261658  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
  RSA312360  Salicornia maritima H. L. Mason, Malcolm Nobs 1948-12-11 713 San Mateo Hwy 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  SEINET6901955  Salicornia virginica Robert A. Evers, Clara V. Evers 1975-8-24 115026 San Mateo Trailer Villa, Redwood City. Comment
  JROH3847  Salix exigua var. hindsiana John Hunter Thomas 1981-4-23 20494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH3858  Salix laevigata Toni Corelli 2002-11-18 250 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, West side of Searsville Lake on lake trail that is east of the Field Station 106 Comment
  UC75005  Salix laevigata unknown 1907-3-18 338 San Mateo hills near Palo Alto Palo Alto Comment
  LA208828  Salix lasiandra David D. Keck; 1932-3-6 1392 San Mateo Searsville Lake Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  JROH3871  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107127  Salix lasiolepis Walter Knight; Irja Knight 1965-2-28 867 San Mateo Colma Canyon - San Bruno Mt. Comment
  CDA34016  Salix lasiolepis D. G. Kelch 2011-3-13 11 .056 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  SEINET12003303  Salix lasiolepis L. S. Rose 1938-1 38302 San Mateo San Francisco, Mountain Lake, Presidio 30 Comment
  CAS-BOT-BC124493  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-3-23 s.n. San Mateo Corte de Madera Creek, Portola Valley Comment
  CAS-BOT-BC128208  Salix lucida W. R. Dudley 1894-3-26 s.n. San Mateo Near San Gregorio - Santa Cruz Peninsula Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126513  Salix sitchensis W. R. Dudley 1903-6-6 s.n. San Mateo Near mouth of Peters Creek below Iverson's Comment
  JEPS29418  Salvia spathacea L. R. Heckard 1961-7-16 1266 San Mateo just below San Bruno Mt. summit (sw of transmitting station KQED); San Bruno Mt. 304 Comment
  JEPS62786  Salvia spathacea W. L. Jepson 1921-4-3 9107 San Mateo Colma Canyon Comment
  UC1046499  Salvia spathacea R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  UC1327249  Salvia spathacea John T. Doyen 1966-3-28 32 San Mateo San Bruno Mountains; near Radio Towers at top Comment
  UC306578  Salvia spathacea A. D. E. Elmer May 1903 4440 San Mateo Colma Comment
  CAS-BOT-BC235036  Sambucus L. R. Abrams 1916-3-26 5589 San Mateo Road between San Mateo and Half Moon Bay, coast side of grade Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC236457  Sambucus racemosa subsp. racemosa W. R. Dudley 1894-3-24 s.n. San Mateo Near Pescadero Creek below B. Haywoods, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC236464  Sambucus racemosa subsp. racemosa Adaline Christensen 1956-5-1 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC235073  Sambucus racemosa var. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  UCSC004609  Sanicula Randall Morgan 1994-3-12 2153 San Mateo Lower N slope of Coal Mine Ridge, not far from Alpine Road Comment
  JEPS185  Sanicula arctopoides W. L. Jepson 1922-3-19 9535 San Mateo Lake San Andreas Comment
  JEPS189  Sanicula arctopoides Mrs. Inez Ray Smith 1915-3-1 San Mateo Burlingame Comment
  UC75021  Sanicula arctopoides Dr. E. L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  POM133561  Sanicula bipinnata L. R. Abrams 1901-03 1141 San Mateo Woodside. Comment
  JROH319  Sanicula bipinnata Ann Lambrecht 2003-4-9 5 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, W edge of trail, around curve SW of Collinsia heterophylla site Comment
  CAS-BOT-BC223327  Sanicula bipinnatifida John H. Thomas 1958-3-19 7067 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH322  Sanicula bipinnatifida John H. Thomas 1967-5-12 12885 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET9699624 Image available Sanicula bipinnatifida Genevieve J. Kline 1996-1 332 San Mateo Stanford, Stanford University, foothills above Junipero Serra Blvd. Comment
  CAS-BOT-BC223319  Sanicula bipinnatifida Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane Comment
  CAS-BOT-BC166661  Satureja douglasii Peter Rubtzoff 1977-6-21 9064 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  JROH354  Scandix pecten-veneris John Hunter Thomas 1977-4-28 18564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283133  Schedonorus arundinaceus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo On the south side of Crocker Industrial Park, San Bruno Mountains 22 Comment
  POM265000  Schoenoplectus pungens I. L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  UC1100791  Scirpus californicus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1567 San Mateo s of Rockaway Beach Comment
  UC1853  Scirpus cernuus J. Burtt Davy 1893-6-17 San Mateo Belmont Belmont (meadow back of Salt Marsh) Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  UC1100838  Scirpus microcarpus Herbert L. Mason, Verne Grant 1946-8-28 13093 San Mateo on Highway 5 one mi w of San Bruno between Santa Cruz and Daly City; w of San Bruno Comment
  CAS-BOT-BC111060  Scirpus microcarpus Phillip C. Wheeler 1965-5-18 s.n San Mateo April Brook toward the meadow Comment
  POM312852  Scirpus microcarpus H. L. Mason, Verne Grant 1946-8-28 13093 San Mateo 1 mile west of San Bruno between Santa Cruz and Daly City on Highway 5 Comment
  JEPS62103  Scoliopus bigelovii Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  RSA132362  Scoliopus bigelovii John H. Thomas 1960-3-1 8539 San Mateo Dense redwood forest along Kings Mt. road about 0.5 mile below Skyline Blve. 610 Comment
  UC1057748  Scoliopus bigelovii F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  UC142703  Scoliopus bigelovii Alice Eastwood 1902-2-28 San Mateo Lake Pilarcitos Comment
  UC494236  Scoliopus bigelovii Anna E. Ehlers 278 San Mateo San Andreas Comment
  CAS-BOT-BC519014  Scoliopus bigelovii James McMurphy 1906-3-9 s. n. San Mateo Below Kings Mountain Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  SEINET12055152  Scoliopus bigelovii L. R. Abrams 1904-1 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  CDA7623  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UCD124850  Scrophularia californica R. S. Woglum 1935-5-25 1167 San Mateo Southeast San Mateo County: San Francisco area, Skyline Drive to Big Basin. Comment
  UC311530  Sedum radiatum A. D. E. Elmer June 1903 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  UC789323  Sedum spathulifolium A. D. E. Elmer June 1903 4550 p.p. San Mateo toward San Mateo from Crystal Springs Lake; Toward San Mateo from Crystal Springs Lake Comment
  JROH1219  Senecio aronicoides John H. Thomas 1967-5-10 12855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  RSA0013330  Senecio aronicoides A. D. E. Elmer 1903-05 4508 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC365647  Senecio elegans Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. East end of Colma Canyon 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-BC364636  Senecio vulgaris John H. Thomas 1956-12-23 6481 San Mateo At 198 Oak Court, Menlo Park Comment
  UCD135850  Senecio vulgaris J. D. Skoss 1948-7-25 45 San Mateo San Vicente, near Montara. Comment
  JROH134  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY804119  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles West of its junction with California Highway 84. Comment
  RSA181221  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  CAS-BOT-BC85778  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo On trail from Iverson's Bull Spring Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  CAS-BOT-BC85784  Sequoia sempervirens Atkinson 1901-1-27 s.n. San Mateo Santa Cruz Mountain Peninsula, near Preston's Place, Portola Valley Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  UCSB18832  Sherardia arvensis Schulte, John 1963-4-28 San Mateo 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz mountains 152 Comment
  UCR136722  Sidalcea diploscypha L. S. Rose 1948-5-16 48117 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  RSA772539  Sidalcea malviflora Robert F. Thorne, Percy C. Everett 1963-6-9 32221 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  UCSB11675  Sidalcea malviflora Connelly, Dianne 1962-4-21 San Mateo Above main office of Westborough homes development, 10 miles north of San Francisco, Skyline Boulevard 121 Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  SD67293  Sidalcea malviflora subsp. malviflora Darley F. Howe 1967-4-13 4343 San Mateo Pebble Beach Comment
  RSA15352  Sidalcea malviflora subsp. malviflora Carl B. Wolf 1927-1-29 167 San Mateo Pebble Beach, coast south of Pescadero. Comment
  CHSC22898  Sidalcea malviflora subsp. rostrata Robert A. Schlising 1963-2-23 2434 San Mateo California Coast Ranges. 21 miles north of Davenport, along highway 1. Comment
  JEPS85233  Silene californica Roy E. Buck, Randall A. Morgan 1984-6-17 509 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, San Francisco Watershed Reserve); San Francisco Watershed Reserve, sw of Redwood City 152 Comment
  UC8420  Silene californica Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH1725  Silene laciniata subsp. californica John H. Thomas 1962-7-15 9911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  JEPS82259  Silene scouleri subsp. grandis Roger Raiche 1983-8-20 30637 San Mateo granite bluffs above saddle of old highway Montara Mt. ((on topomaps between San Pedro Mt. and Montara Mt.)); , between San Pedro Mt. and Montara Mt. 304 Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC389894  Silene scouleri subsp. scouleri C. F. Leitholt 1894-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  CAS-BOT-BC364858  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC75349  Sisymbrium officinale John H. Thomas 1969-4-24 14918 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  UC1206464  Sisyrinchium bellum LeRoy Abrams 1902-4-13 2327 San Mateo Lake San Andreas Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  POM291007  Sisyrinchium bellum Lyman Benson 1931-3-15 2640 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UC1084412  Smilacina racemosa G. Thomas Robbins 1937-4-11 110 San Mateo hillside above Redwood City Comment
  UCR129777  Smilacina stellata var. sessilifolia C. B. Wolf 1927-4-3 00250 San Mateo Santa Cruz Mtns., 1 mile above La Honda 183 Comment
  UCD129025  Solanum Ed Johnson 1973-8-15 s.n. San Mateo On the perimeter of an orchard. Comment
  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
  JROH4175  Solanum americanum John H. Thomas 1974-10-29 17641 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  SEINET12274723  Solanum douglasii M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Pt Comment
  SEINET5571744  Solanum douglasii H. S. Gentry 1931-1 88 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA14505  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1935-8-24 8164 San Mateo Pepper field, about 0.5 mile S of Moss Beach. Comment
  JROH4187  Solanum umbelliferum John H. Thomas 1967-5-12 12887 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820558  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo West side of King's Mountain Comment
  SD37373  Solanum umbelliferum Delzie Demaree 1932-4-9 8981 San Mateo Los Trancos Woods Comment
  RSA130953  Solanum umbelliferum W. R. Dudley 1896-2-16 s.n. San Mateo Near Peters Cr. Santa Cruz Mts. Comment
  CAS-BOT-BC422310  Soleirolia soleirolii Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  SEINET3388313 Image available Solidago californica Lewis S. Rose 1932-10-12 32669 San Mateo Kings Mountain Comment
  POM183401  Solidago canadensis subsp. elongata L. S. Rose 1931-9-19 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  CAS-BOT-BC365186  Solidago velutina subsp. californica Peter Rubtzoff 1975-10-4 8415 San Mateo San Bruno Mountains. On ridge northwest of Fog Forest Comment
  UC711942  Solidago velutina subsp. californica R. Bacigalupi 1941-10-30 2730 San Mateo along Crystal Springs-Woodside Road 1/2 mi s of junction with Belmont Road Comment
  JROH1252  Soliva sessilis John Hunter Thomas 1989-5-9 24709 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365923  Soliva sessilis Le Roy Abrams 1902-5-4 2428 San Mateo Woodside Comment
  CAS-BOT-BC365930  Soliva sessilis Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountain. Randolph Ave., South San Francisco Comment
  CAS-BOT-BC365932  Soliva sessilis Walter Knight; Irja Knight 1964-4-13 635 San Mateo San Bruno Mountain. North Power Line Ridge road Comment
  JROH1247  Soliva sessilis John Hunter Thomas 1983-5-23 22249 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  CAS-BOT-BC374704  Sonchus oleraceus Margaret A. Barry 1938-4-21 240 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC374708  Sonchus oleraceus Javier Penalosa 1963-3-30 2724 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC236627  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  SEINET10602935  Spartina foliosa Delzie Demaree 1933-9-17 Demaree 10528 San Mateo San Francisco Bay, Belmont Common along margins of salt marshes Comment
  CAS-BOT-BC390009  Spergula arvensis John H. Thomas 1961-5-7 9247 San Mateo Colma. Field near intersection of El Camino Real and F Street 45 Comment
  JROH1743  Spergula arvensis John Hunter Thomas 1978-4-25 19157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15845  Spergula arvensis John Rawlings 2015-1-23 1278 San Mateo San Bruno Mountain; southeast ridge fire road above Owl Canyon 351 Comment
  JROH1747  Spergula arvensis John Hunter Thomas 1983-4-5 21325 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  SEINET7062814  Spergula arvensis subsp. arvensis A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  JROH1756  Spergularia John Hunter Thomas 1978-4-25 19155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390204  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390208  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390463  Spergularia macrotheca var. macrotheca Anne Constant 1955-5-28 197 San Mateo Top of bluff at Pescadero Beach 7 Comment
  CAS-BOT-BC390469  Spergularia macrotheca var. macrotheca David D. Keck 1933-5-11 2297 San Mateo Montara Light House and Radio Station Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390749  Spergularia marina Elizabeth McClintock; Paul Reeberg 1989-6-13 s.n. San Mateo San Bruno Mountains. P.G.&.E. Marsh Comment
  RSA0004233  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 1903-05 4395 San Mateo Crystal Springs Lake. Comment
  SJSU15219  Stachys ajugoides Toni Corelli 2011-5-21 701 San Mateo Ano Nuevo State Park, Cascade Field 12 Comment
  RSA582109  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  UC32568  Stachys ajugoides var. ajugoides W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence Comment
  RSA101015  Stachys bullata G. Oberlander 1949-4-30 139 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  RSA116738  Stachys bullata W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  SEINET10851465 Image available Stachys gracilenta A. Arthur Heller 1907-5-28 Heller 8574 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  JEPS82914  Stachys pycnantha Roy E. Buck and Randall A. Morgan 1983-6-7 334 San Mateo San Francisco Watershed Reserve; in triangle of Edgewood and Canada Rds and Hwy I-280 152 Comment
  CAS-BOT-BC164654  Stachys rigida subsp. quercetorum Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2892  Stachys rigida var. quercetorum John H. Thomas 1967-5-12 12884 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC36684  Stebbinsoseris heterocarpa Alice Eastwood May 1890 - May 1896 San Mateo Crystal Springs Comment
  JROH1792  Stellaria nitens Toni Corelli 2006-3-22 309 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 5, lost serpentine trail 121 Comment
  JROH5560  Stellaria nitens John Rawlings 2013-4-19 1154 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Trail 11 in a level section in chamise. 136 Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  JROH1274  Stephanomeria virgata John H. Thomas 1978-9-24 19337 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375910  Stephanomeria virgata Josephine D. Randall 1907-11-9 s.n. San Mateo Santa Cruz Peninsula. Alpine Road to Black Mt. Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. 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
  JROH5335  Stipa pulchra John Hunter Thomas 1978-5-16 19216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC423014  Stylomecon heterophylla Walter Knight; Irja Knight 1965-4-25 1072 San Mateo San Bruno Mountain. Owl's Canyon Comment
  SD38069  Stylomecon heterophylla Edith A. Purer 1933-5-5 3630 San Mateo Woodside Road. Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC271644  Symphoricarpos albus var. laevigatus George Oberlander 1950-3-18 590 San Mateo San Mateo Creek Comment
  CAS-BOT-BC271648  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC237064  Symphoricarpos mollis Ira L. Wiggins 1925-4-1 1651 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood belt. Comment
  CAS-BOT-BC237068  Symphoricarpos mollis Fred Hemphill 1973-4-15 672 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  POM46711  Symphoricarpos mollis C. F. Baker 1901-9-5 238 San Mateo West Side Kings Mt. Comment
  CAS-BOT-BC99063  Symphyotrichum chilense Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Dairy Ravine across road from KQED radio tower Comment
  JROH525  Symphyotrichum chilense John Hunter Thomas 1981-9-24 20750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC892754  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley, (dry hills) Vistacion Valley Comment
  UCD136532  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point. 1 Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  CAS-BOT-BC376918  Taraxacum officinale Paul Reeberg 1989-5-1 s.n. San Mateo San Bruno Mountains. Junction of Randolph Ave. and Hillside Blvd. Comment
  JROH372  Tauschia kelloggii John H. Thomas 1963-3-20 10028 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  UCR56173  Tellima grandiflora Ray Langham 1966-4-3 135 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  CAS-BOT-BC438266  Tetragonia tetragonoides J. H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Pt. Light House. 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
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC399854  Thalictrum polycarpum Josephine D. Randall 1908-5-1 s.n. San Mateo Santa Cruz Peninsula. Corte de Madera Canon [Canyon] near Alpine Road Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66661  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66677  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 3 San Mateo On Coal Mine Ridge. Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  RSA17959  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 722 San Mateo Islam Camp near La Honda. Santa Cruz Mts. Comment
  SEINET3876264 Image available Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda.; 0 152 Comment
  SEINET10793120  Torreyochloa pallida var. pauciflora Adolph D. E. Elmer Elmer 4692 San Mateo Pilarcitos Creek Comment
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  RSA176743  Trientalis latifolia John H. Thomas 1961-5-5 9215 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UC1123294  Trientalis latifolia N. K. Carlson 1935-7-3 118 San Mateo 3 mi s of Bellvale 91 Comment
  HSC23914  Trientalis latifolia Mary Katherine Wicksten 1971-6-22 87 San Mateo Huddart Park, near Madrone Area Comment
  RSA116747  Trientalis latifolia Josephine Randall 1907-4-27 s.n. San Mateo KingsM Mt. 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
  CAS-BOT-BC157980  Trifolium amplectens Peter Rubtzoff 1976-3-28 8450 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio junction; in East Fork Colma Creek canyon area Comment
  CAS-BOT-BC157982  Trifolium amplectens Peter Rubtzoff; Barbara Deutsch 1979-5-27 9285 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  RSA349487  Trifolium bifidum var. decipiens D. D. Keck 1932-6-1 1790 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UCD107907  Trifolium bifidum var. decipiens Lewis S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  JROH2261  Trifolium depauperatum var. amplectens John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127789  Trifolium depauperatum var. truncatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 60 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127790  Trifolium fucatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 61 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH2288  Trifolium fucatum John H. Thomas 1964-4-19 10321 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC137797  Trifolium fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  JROH2332  Trifolium hirtum John Hunter Thomas 1989-4-20 24644 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  UCD111197  Trifolium hirtum John Thomas Howell 1966-5-8 41530 San Mateo At junction of Millbrae Ave. and Bayshore Freeway, Millbrae. Comment
  JROH2336  Trifolium hybridum John Hunter Thomas 1983-6-2 22326 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing Comment
  POM20397  Trifolium macraei A. D. E. Elmer 1908-05 4812 San Mateo San Pedro. Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  UCSC006059  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  JROH2362  Trifolium subterraneum John Hunter Thomas 1987-5-19 24299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2366  Trifolium subterraneum John Hunter Thomas 1989-4-20 24645 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  JROH2368  Trifolium subterraneum John Hunter Thomas 1992-5-5 25216 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH2381  Trifolium variegatum John H. Thomas 1971-4-10 15762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2384  Trifolium variegatum John H. Thomas 1974-4-25 17203 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  SBBG33492  Trifolium variegatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  UC204145  Trifolium variegatum var. melananthum A. D. E. Elmer May, 1903 4685 San Mateo Portola Comment
  JROH5703  Trifolium variegatum var. variegatum John Rawlings 2015-3-15 1356 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy drainage on ridge-top serpentine prairie. 188 Comment
  JROH2402  Trifolium willdenovii John H. Thomas 1974-4-12 17144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18877  Trifolium willdenovii C. F. Baker 1903-4-8 1925 San Mateo San Andreas Lake Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226853  Trifolium willdenovii L. R. Abrams 1914-4-2 5075 San Mateo Menlo Heights. Comment
  SBBG33496  Trifolium willdenovii A. D. E. Elmer -May-1903 San Mateo Belmont Comment
  CHSC39828  Trifolium wormskioldii Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  POM207964  Trifolium wormskioldii Jens Clausen 1939-7-1 1746 San Mateo Ano Nuevo Point. Comment
  UC80455  Trifolium wormskioldii Katharine Brandegee June 1905 San Mateo Moss Beach Comment
  UC1206466  Trillium chloropetalum Le Roy Abrams 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  POM204511  Trillium chloropetalum var. chloropetalum I. L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach. Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521006  Trillium chloropetalum var. chloropetalum Janet Jones 1981-1-17 s. n. San Mateo On south side of Montara Mountain, Montara Comment
  CAS-BOT-BC521066  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain: Mouth of Colma Canyon near Indian Head Rock Comment
  CAS-BOT-BC521201  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: by trail north of Tripps Store, Woodside Comment
  CAS-BOT-BC521202  Trillium chloropetalum var. giganteum W. R. Dudley 1901-3-16 s.n. San Mateo Santa Cruz Peninsula: Los Trancos Creek Comment
  CAS-BOT-BC133445  Trillium ovatum W. R. Dudley 1903-5-2 s.n. San Mateo Near Iverson's (Near Pescadero) Comment
  SEINET12044499  Trillium ovatum P. R. Hichborn 1920-1 115 San Mateo Sierra Moreva Ridge Comment
  SD39139  Trillium rivale Edith A. Purer 1933-4-18 3621 San Mateo No further locality information given on label on specimen sheet. Comment
Read comments
Nov 11 2010
  JROH1648  Triodanis biflora H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  OBI9367  Triphysaria versicolor subsp. faucibarbata Rimo Bacigalupi, G. T. Robbins 1954-6-18 4562 San Mateo Immed behind Point ano Nuevo Comment
  CAS-BOT-BC200080  Trisetum canescens W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC521592  Triteleia hyacinthina George Oberlander 1950-5-6 932 San Mateo Baker Meadow, northwest San Andreas Lake Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  JROH4749  Triteleia laxa John H. Thomas 1974-4-13 17147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4751  Triteleia laxa John H. Thomas 1976-5-26 18157 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4754  Triteleia laxa John Hunter Thomas 1991-5-2 25015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6306  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont. Comment
  CAS-BOT-BC526366  Triteleia laxa Philip C. Wheeler 1965-6-16 s.n. San Mateo East of Radio Road, San Bruno Mountain Comment
  JEPS82916  Triteleia peduncularis Roy E. Buck and Randall A. Morgan 1983-6-7 332 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280 San Francisco Watershed Reserve 152 Comment
  IRVC12855  Triteleia peduncularis Lora Epstein 1967-5-26 43 San Mateo On Woodside Road; 1.5 mi. N of jct with Ridgeway Drive. Comment
  CAS-BOT-BC74057  Turritis glabra Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain near radio station. Comment
  RSA17882  Typha latifolia Carl B. Wolf 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  CDA19884  Ulex europaeus J. Beall 2002-6-7 PDR P 120147 San Mateo San Francisco Bay Area; Collins Ave, 300 yds W of El Camino Real, Colma. 0 Comment
  UC2015626  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City at 333 Hickey Blvd. Comment
  UCSB26557  Ulex europaeus Havlik, Neil 1969-3-27 San Mateo North side of San Bruno Mountain, near the junction of Radio Road and Guadalupe Road Comment
  JROH1292  Uropappus lindleyi John Hunter Thomas 1986-5-6 24013 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1296  Uropappus lindleyi John Hunter Thomas 1989-5-9 24714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1298  Urospermum picroides Toni Corelli 2005-5-9 287 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road F 154 Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  CAS-BOT-BC403968  Urtica dioica subsp. gracilis L. R. Abrams 1909-8-1 4246 San Mateo Santa Cruz Peninsula. Between La Honda and Pescadero Comment
  CAS-BOT-BC412534  Urtica urens John H. Thomas 1967-5-27 11638 San Mateo Menlo Park, near the Southern Pacific train station Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC199370  Vaccinium ovatum James McMurphy 1907-4-27 js.n. San Mateo Kings Mt. Comment
  UC141803  Vaccinium ovatum C. F. Baker 1902-1-15 242 San Mateo w side Kings Mountain Comment
  UC571031  Vaccinium ovatum H. L. Mason 1928-2-22 4165 San Mateo Summit of San Bruno Mountains Comment
  CAS-BOT-BC199372  Vaccinium ovatum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Huckleberry Ridge Comment
  SEINET11972531  Vaccinium ovatum G. A. McCallum 1933-1 s.n. San Mateo near La Honda grade Comment
  CAS-BOT-BC76143  Vancouveria planipetala Miss A. M. Patterson 1906-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. King's Mountain. Comment
  POM149188  Vancouveria planipetala A. D. E. Elmer 1903-05 4922 San Mateo Iverson s Place; on the Pescadero Creek. Comment
  POM272218  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside, Santa Cruz Mountains. 244 Comment
  CAS-BOT-BC389676  Verbena lasiostachys Maryann Danielson 1969-7-21 s.n. San Mateo On road into Mud Lake (San Francisco Watershed area-Dam side) Comment
  HSC24033  Verbena lasiostachys Mary Katherine Wicksten 1971-7-12 167 San Mateo Huddart Park, near Archery Flat, along King's Mtn. Rd. Comment
  RSA411631  Verbena lasiostachys E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  UC450179  Verbena lasiostachys var. lasiostachys W. C. Blasdale 1893-6-23 San Mateo Pilarcitos Comment
  JROH4276  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4278  Verbena lasiostachys var. scabrida John Hunter Thomas 1981-9-24 20742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4272  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of lake Comment
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  POM17349  Vicia americana var. americana C. F. Baker 1903-4-6 1972 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UC1084414  Vicia americana var. americana G. Thomas Robbins 1937-4-11 104 San Mateo near Redwood City Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  SFV4291  Vicia sativa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  UCR101650  Vicia sativa George K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH2449  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH2451  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH2454  Vicia villosa subsp. varia John Rawlings 2012-5-15 1114 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road B vicinity of Dennis Martin Marker. 79 Comment
  RSA15206  Vinca major C. B. Wolf 1926-10-19 s.n. San Mateo Near La Honda. Santa Cruz Mts. Comment
  JROH424  Vinca major John H. Thomas 1977-4-8 18517 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Portola Rd. and Sand Hill Rd. Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  RSA130698  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mtns vicinity of South Peak. 503 Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  CAS-BOT-BC264035  Viola adunca W. R. Dudley 1894-3-24 s.n. San Mateo Field E of Pebbly Beach, Pescadero Comment
  SEINET6176297  Viola adunca Lewis S. Rose 1951-3-7 5100 San Mateo San Bruno Hills.; 0 244 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
  CAS-BOT-BC536574  Viola glabella Peter Rubtzoff 1953-5-14 1351 San Mateo Pilarcitos Creek canyon, 1 to 2 mi downstream from Pilarcitos Lake Comment
  SEINET9251817  Viola glabella R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, along HWY 84. Comment
  CHSC13860  Viola ocellata S. Villard 1974-4-28 2 San Mateo Kings Mountain Rd., Woodside. 1 mi. W of Mounted Patrol Grounds on both sides of the rd. 152 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
  JEPS50233  Viola sempervirens James G. Daly c. 1934 180 San Mateo 4 mi w of Skyline (Upper Corte de Madera Canyon); Santa Cruz Mountains, Upper Corte de Madera Canyon Comment
  POM216553  Viola sempervirens D. D. Keck 1932-3-6 1398 San Mateo La Honda Road, 1 mile SW of Skyline Blvd, Santa Cruz Mtns. 274 Comment
  CAS-BOT-BC199848  Vulpia bromoides W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC199855  Vulpia bromoides Catherine A. Toschi 1963-2-23 63 :24 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC199861  Vulpia bromoides W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch Hill Comment
  CAS-BOT-BC221646  Vulpia bromoides John H. Thomas 1969-4-24 14908 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  POM319919  Vulpia bromoides Barbara Shervanick 1973-4-1 803 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment