Search Results — 2000 specimen records retrieved (1337 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET946036  Abronia latifolia C. F. Baker 1902-1 1741 San Mateo Piller Point. Comment
Read comments
Dec 21 2013
  CAS-BOT-BC383897  Abronia latifolia W. R. Dudley 1891-7-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  RSA0025759  Abronia latifolia C. F. Baker 1902-10-1 1741 San Mateo Pillar Point. Comment
  SEINET5726308 Image available Abronia latifolia Louise Lackman 1973-1 33 San Mateo sand dune, ca. 100 feet from shoreline.; Pescadero Beach Comment
  CAS-BOT-BC233753  Abronia umbellata L. R. Abrams 1909-8-2 4276 San Mateo Pebble Beach Hotel, Pescadero, Santa Cruz Peninsula Comment
  CAS-BOT-BC233754  Abronia umbellata W. R. Dudley 1891-7-5 2 San Mateo Pescadero, Santa Cruz Peninsula Comment
  SEINET7042346  Abronia villosa A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  CAS-BOT-BC451119  Acaena pinnatifida var. californica Robert F. Hoover 1939-4-21 4053 San Mateo Two miles south of Colma Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  UC729637  Acanthomintha duttonii Carl B. Wolf 1929-5-24 3723 San Mateo above Upper Emerald Lake (back of Redwood City) Comment
  SD27833  Acanthomintha obovata Carl B. Wolf 1929-5-24 3723 San Mateo Open grassy hills above upper Emerald Lake back of Redwood City. Comment
  POM294370  Acanthomintha obovata subsp. duttonii Dutton, Walker 1915-1 s.n. San Mateo Menlo Park Comment
  RSA116909  Acer macrophyllum I. L. Wiggins 1929-3-23 3372 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC333289  Acer macrophyllum W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Peter's Creek Bridge, Iversons Comment
  JROH171  Acer negundo John Hunter Thomas 1982-11-6 21217 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway 106 Comment
  CAS-BOT-BC336917  Acer negundo var. californicum C. B. Wolf 1930-5-11 1809 San Mateo 4 miles W. of La Honda, Santa Cruz Mts. 91 Comment
  HSC2819  Acer negundo var. californicum P. A. Murphy 1965-4-15 22 San Mateo On San Mateo Rd. 2 mi. from Hillsbrough city limits Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  CAS-BOT-BC21584  Achillea millefolium Fred Hemphill 1973-5-6 760 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC21597  Achillea millefolium John H. Thomas 1961-5-7 9311 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH450  Achillea millefolium John Hunter Thomas 1986-5-6 24016 San Mateo Jasper Ridge Biological Preserve, Stanford University 181 Comment
  UCSB8055  Achillea millefolium Myrick, Donald 1966-6-1 San Mateo Off Highway 1 south of San Francisco near Pescadero Comment
  JROH459  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH471  Achyrachaena mollis John Hunter Thomas 1982-5-18 20939 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  SEINET11854798  Achyrachaena mollis M. T. Doutt 1931-1 420 b. San Mateo Skyline Blvd, W of Hillbrae Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2068  Acmispon glaber var. glaber G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2091  Acmispon wrangelianus John H. Thomas 1961-4-8 9075 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15953  Acmispon wrangelianus John Rawlings, Ken Hickman 2016-5-26 1830 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
  SDSU2646  Adelinia grandis D. F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno. 91 Comment
  SEINET8722547 Image available Adenostoma fasciculatum Lewis S. Rose 1941-1 41270 San Mateo Hills w. of Red Wood City, Emerald Lake. Alt. ca. 400 ft. 122 Comment
  JROH3585  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1974-5-29 17403 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral near Riders' shack 145 Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  SEINET182852 Image available Adiantum emarginatum John P. Young 1925-1-10 San Mateo Burlingame Comment
  LA16623  Aesculus californica C. B. Wolf; 1934-11-13 6242 San Mateo Menlo Park, at Cambridge Ave. & Cornell Rd., NW of San Francisquito Creek 15 Comment
  RSA131266  Aesculus californica Lucile Roush 1917-6-3 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula. Comment
  UCR3560  Aesculus californica Wm. Horn Jr. 1963-6-10 630610- 2 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  UC1301057  Agoseris apargioides Helen K. Sharsmith 1963-2-16 5148 San Mateo Thornton Beach San Francisco Bay Region, Thornton Beach Comment
  CAS-BOT-BC29526  Agoseris apargioides W. R. Dudley 1896-11-15 s.n. San Mateo Near shore, Spanishtown Comment
  UC29397  Agoseris apargioides var. apargioides F. P. McLean 1873-6-1 San Mateo Searsville Comment
Read comments
Oct 8 2006
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC15250  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Cemeteries Comment
  RSA116783  Agoseris hirsuta W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  UC92296  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC15240  Agoseris hirsuta Roxana S. Ferris 1921-4-7 2129 San Mateo San Bruno Mountain 213 Comment
  CAS-BOT-BC15247  Agoseris hirsuta Elizabeth McClintock; Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, top of ridge East of Nike Station Comment
  JROH4773  Agrostis avenacea John Hunter Thomas 1981-7-12 20700 San Mateo Jasper Ridge Biological Preserve, Stanford University; on sandy beach 120 Comment
  UCSC008505  Agrostis blasdalei Randall Morgan 2013-5-24 5528 San Mateo Bean Hollow State Beach, about 100 m up trail from parking lot Comment
  RSA116453  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, ca. 5-6 miles south of San Francisco Comment
  JROH4786  Agrostis exarata John Rawlings 2004-7-23 1042 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, south of first footbridge 124 Comment
  SJSU11264  Agrostis hallii S. H. Casey 1980-6-13 1156 San Mateo Los Trancos Woods Comment
  JROH5781  Agrostis microphylla John Rawlings 2016-5-3 1777 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in Serpentine prairie (Area C) 170 Comment
  SEINET7594094 Image available Agrostis microphylla E. B. Copeland 1903-1 3308 San Mateo Montara Point Comment
  JROH4799  Agrostis pallens Herbert Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in swale between E. serp. and 2nd enclosure (reading from S.E. to N.W.) Comment
  SJSU15959  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 B 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
  UCD53588  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-25 1550 San Mateo Sharp Park. Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138241  Aira caryophyllea var. caryophyllea H. L. Mason 1921-5-29 s.n. San Mateo Roadside near Arroyo de los Frijoles. Comment
  CAS-BOT-BC138247  Aira caryophyllea var. caryophyllea Le Roy Abrams 1902-5-4 2405 San Mateo Woodside. Comment
  UC814494  Alisma plantago-aquatica Lewis S. Rose 1941-9-13 41440 San Mateo stream bottom San Mateo Canyon 60 Comment
  SEINET8534224 Image available Allium dichlamydeum A. A. Heller 1907-5-23 8564 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4548  Allium falcifolium H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4550  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  POM169881  Allium falcifolium A. D. E. Elmer 1903-06 4831 San Mateo Crystal Springs Lake. Comment
  SJSU657  Allium falcifolium A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC469037  Allium falcifolium A. D. E. Elmer 1903-4-1 4831 San Mateo Crystal Springs Lake Comment
  SEINET12043965  Allium falcifolium L. S. Rose 1933-1 33177 San Mateo Crystal Springs Lake Comment
  UCD138520  Allium falcifolium R. E. Dengler 1960-4-12 28 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  SEINET12053529  Allium lacunosum L. S. Rose 1932-1 32223 San Mateo Redwood City 183 Comment
  CDA928  Allium peninsulare D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .366 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  SEINET5626583 Image available Allocarya chorisiana Unknown 1907-1 8439 San Mateo Near Lake Merced Comment
  RSA262236  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC170158  Alnus rhombifolia George Oberlander 1950-4-2 508 San Mateo San Mateo Creek Canyon Comment
  RSA140626  Amaranthus deflexus John H. Thomas 1960-6-25 8784 San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets Comment
  RSA22216  Amaranthus powellii J. T. Howell 1938-5-1 13772 San Mateo Colma Canyon Comment
  SD40000  Ambrosia chamissonis Edith A. Purer 1932-7-18 4014 San Mateo Half Moon Bay on sand dunes Comment
  SD87531  Ambrosia chamissonis Frank W. Peirson 1925-9-13 6427 San Mateo Rockaway Beach, back of beach Comment
  UC577093  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo sandy ocean beach Granada 3 Comment
  CHSC57108  Ammophila arenaria Steven Triano 1988-5-24 203 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH1348  Amsinckia menziesii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above east margin of Searsville Lake by trail Comment
  JROH1350  Amsinckia menziesii John Hunter Thomas 1987-4-4 24169 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  HSC59829  Anagallis arvensis Clark L. Miller 1978-6-15 264 San Mateo 6 mi. S of Half Moon Bay, off Hwy. 1 on Verde Rd. 61 Comment
  UCD15059  Anagallis arvensis A. Bennett 1977-5-29 40 San Mateo California, San Mateo Co.; 0.7 miles north of Hayne Road intersection along Highway 35 (Burlingane); 60 Comment
  JROH3374  Anagallis minima John H. Thomas 1974-4-25 17214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45193  Anaphalis margaritacea Josephine D. Randall 1907-7-28 45 San Mateo Iverson's near Pescadero Creek Comment
  UC1125508  Anaphalis margaritacea G. E. Sindel 1935-7-22 294 San Mateo 1/4 mi s of Pescadero; Santa Cruz Quad. 30 Comment
  CAS-BOT-BC45191  Anaphalis margaritacea W. R. Dudley 1894-7-28 s.n. San Mateo Between Pescadero and La Honda Comment
  CAS-BOT-BC391919  Anemone grayi E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  UC118834  Anemone oregana C. F. Baker 1902-3-18 323 San Mateo King's Mtn Comment
  CAS-BOT-BC221460  Angelica hendersonii H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC221457  Angelica hendersonii Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Quarry 3 Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC273187  Anisocarpus madioides Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  SEINET5539055  Antennaria luzuloides H. S. Gentry 1931-1 84 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH502  Anthemis cotula John H. Thomas 1977-6-16 18757 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH510  Anthemis cotula John Hunter Thomas 1985-5-21 23668 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing of San Francisquito Creek 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-BC280673  Anthoxanthum nitens John H. Thomas 1974-5-9 17330 San Mateo San Pedro Valley, Northern part of county, inland from Pacifica 152 Comment
Read comments
Jul 28 2017
  JEPS5265  Antirrhinum kelloggii R. F. Hoover 1941-4-23 4905 San Mateo Redwood City hills Redwood City Comment
  CAS-BOT-BC454477  Aphanes occidentalis John H. Thomas 1964-4-30 10371 San Mateo San Bruno Mountain in Northern part of county. 396 Comment
  JROH3601  Aphanes occidentalis John H. Thomas 1968-3-17 14195 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3603  Aphanes occidentalis John H. Thomas 1973-4-14 16564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132688  Apiastrum angustifolium A. D. E. Elmer 1903-06 4461 San Mateo Crystal Springs Lake. Comment
  SEINET11080240  Apium leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Burlington, Hillside Street just W of El Camino. Comment
  CAS-BOT-BC451566  Aponogeton distachyos Peter Rubtzoff 1956-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  POM148967  Aquilegia eximia A. D. E. Elmer 1903-06 4271 San Mateo Crystal Springs Lake. Comment
  POM87798  Aquilegia eximia Helen D. Geis 1901-07 s.n. San Mateo Crypstal Springs Comment
  CAS-BOT-BC405855  Aquilegia formosa Daniel Cohen 1953-6-3 104 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC17323  Arabis blepharophylla Javier Penalosa 1963-2-23 2654 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC17330  Arabis blepharophylla Lewis S. Rose 1933-3-19 33027 San Mateo South San Francisco. Comment
  CAS-BOT-BC17337  Arabis blepharophylla David D. Keck 1933-5-11 2304 San Mateo Montara Summit, Montara Mountain. Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  RSA254234  Arabis blepharophylla Robert A. Norris 1975-3-31 2295 San Mateo by Radio Road near one of summits, San Bruno Mts. Comment
  UC311117  Arabis blepharophylla A. D. E. Elmer Apr 1903 4936 San Mateo San Bruno Hills Comment
  RSA0125508  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo Southeast side of Colma Canyon 61 Comment
  CAS-BOT-BC128627  Arbutus menziesii Josephine D. Randall 1907-4-27 136 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  JROH1918  Arbutus menziesii John H. Thomas 1967-6-1 12983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15205  Arbutus menziesii C. B. Wolf 1926-10-19 88 San Mateo Near La Honda. Santa Cruz Mts. Comment
  UC1212008  Arctostaphylos James Roof 1961-4-18 San Mateo mt. spur 1/4 mi ne summit; San Bruno Mountain 335 Comment
  UC83010  Arctostaphylos C. F. Baker 1902-5-10 817 San Mateo King's Mountain Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24126  Arctostaphylos andersonii A. D. E. Elmer 1903-3-1 4537 San Mateo King's Mountain Comment
  CAS-BOT-BC24129  Arctostaphylos andersonii Elmer I. Applegate 1895-3-9 304 San Mateo Woodside Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  JEPS48587  Arctostaphylos andersonii James G. Daly 1934-1-1 175 San Mateo Middle La Honda Canyon Santa Cruz Mountains, San Gregorio Watershed Comment
  CAS-BOT-BC24169  Arctostaphylos andersonii W. R. Dudley 1902-6-1 s.n. San Mateo Woods between grenson's and moore's near Black Mt. Comment
  SEINET11987334  Arctostaphylos andersonii var. imbricata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4215 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, from San Bruno Mountain Comment
  CAS-BOT-BC23517  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King Mt. Comment
  RSA26358  Arctostaphylos crustacea E. K. Balls, Percy C. Everett 1953-10-16 18682 San Mateo Hwy 5, 30.8 mi SE of San Francisco-San Mateo Co. line. 762 Comment
  JROH1929  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-4-29 15612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1931  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1933  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  RSA681636  Arctostaphylos cruzensis Annuschka Deb 1989-1-20 1 San Mateo Woodside. Comment
Read comments
Mar 21 2015
  CAS-BOT-BC24727  Arctostaphylos glandulosa subsp. glandulosa Elizabeth McClintock; Paul Reedberg 1988-4-5 s.n. San Mateo Canyon e. of Buckeye Canyon, on a hogback ridge. Comment
  CAS-BOT-BC24731  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4417 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 137 Comment
  CAS-BOT-BC24733  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4416 San Mateo San Bruno Mtn. Up Buckeye Canyon on Oak Ridge. 91 Comment
  CAS-BOT-BC24735  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4421 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 103 Comment
  CAS-BOT-BC24451  Arctostaphylos imbricata James B. Roof 1961-4-18 s.n. San Mateo From ne. face of San Bruno Mountain, northern San Mateo Co. 335 Comment
  CAS-BOT-BC24484  Arctostaphylos imbricata Arthur L. Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. 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
  JEPS98830  Arctostaphylos imbricata James Roof May 1961 San Mateo San Bruno Mountain 400 Comment
  RSA502351  Arctostaphylos imbricata D. W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22deg. W of summit (as depicted on San Francisco South 7.5' USGS quadrangle) 371 Comment
  CAS-BOT-BC27159  Arctostaphylos montaraensis W. Knight; Irja Knight 1967-1-19 2056 San Mateo Montara Mt. 335 Comment
  SEINET11989284  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4446 San Mateo Pacific Rock area, San Bruno Mt Comment
  SEINET11989285  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4447 San Mateo San Pedro County Park, Pacifica Comment
  CAS-BOT-BC39823  Arctostaphylos pacifica Walter Knight; Irja Knight 1981-3-1 4049 San Mateo From Tilden Botanic Garden, Berkeley. Originally collected from San Bruno Mountain. Comment
  RSA0042504  Arctostaphylos pacifica Gary D. Wallace 1975-12-26 1517 San Mateo San Bruno Mountains, east slope, near parking lot at top of Radio Road. 396 Comment
  CAS-BOT-BC44741  Arctostaphylos regismontana C. F. Baker 1902-1-15 271 San Mateo Kings Mountain Comment
  CAS-BOT-BC44743  Arctostaphylos regismontana J. Burtt Davy 1895-4-20 1049 San Mateo Lake Pilarcitos Comment
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 Comment
  RSA380854  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo slopes of Montara Mountain Comment
  RSA636749  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24635 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  UC762307  Arctostaphylos regismontana R. F. Hoover 1941-2-12 4768 San Mateo Kings Mountain Comment
  CAS-BOT-BC44745  Arctostaphylos regismontana W. R. Dudley 1900-5-16 s.n. San Mateo On stage road from King's Mt. to Spanishstown Comment
  LA42311  Arctostaphylos tomentosa Lillian Lockwood; 1908-3-28 sn San Mateo Kings Mountain, near roadside 457 Comment
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  RSA128520  Arctostaphylos tomentosa subsp. crustacea James I. McMurphy 1906-03 s.n. San Mateo Kings Mt. Road. Comment
  RSA636843  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24644 San Mateo NW side of Montara Mtn. 150 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
  UC82933  Arctostaphylos tomentosa subsp. crustacea Katharine Brandegee April 1889 San Mateo Redwood City Comment
  UCD51721  Arctostaphylos tomentosa var. crinita Roman Gankin 1959-2-22 325 San Mateo 1.2 miles from junction State Hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  SEINET11988249  Arctostaphylos tomentosa var. tomentosiformis Unknown 1959-1 325 San Mateo 1.2 mi from junction CA 5 on King's Mt. Road Comment
  CAS-BOT-BC46825  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC46830  Arctostaphylos uva-ursi Peter H. Raven 1951-2-18 2732 San Mateo Summit ridge of San Bruno Mts. Comment
  JEPS27353  Arctostaphylos uva-ursi Rimo Bacigalupi with L. Heckard and J. Roof 1961-4-24 7614 San Mateo just below rocky spur due north of true summit of mountain (directly below and ne of KQED radio power station); San Bruno Mt. 342 Comment
  UCD52049  Arctostaphylos uva-ursi Roman Gankin 1959-3-25 328 San Mateo 1/4 mile east of KRON TV station transmitter. Associated with Baccharis hybrids, Lupinus and Ceanothus. San Mateo County, California. Comment
  RSA0077993  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 421 San Mateo San Bruno Mountain, just E of summit. 396 Comment
  SEINET11987153  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. about 200 yds E of summit parking lot of San Bruno Mt Comment
  SEINET11989256  Arctostaphylos uva-ursi var. coactilis Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  SEINET11929723  Armeria maritima L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  JEPS26346  Armeria maritima subsp. californica Adele Lewis Grant 1917-5-6 940 San Mateo nr. Pescadero; Pebble Beach 3 Comment
  CAS-BOT-BC47693  Armeria maritima subsp. californica Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  RSA6284  Arnica discoidea D. D. Keck 1932-5-11 1775 San Mateo East side of Kings Mountain, on Kings Mountain Road 350 Comment
  RSA94491  Arnica discoidea D. D. Keck 1975-5-11 1775 San Mateo E side of Kings Mtn, on Kings Mtn Road. 351 Comment
  CAS-BOT-BC93929  Artemisia douglasiana Peter H. Raven 1957-9-1 11296 San Mateo Coastal bluffs 1.1 mi. s. of Pigeon Point Lighthouse Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33991  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd and Half Moon Bay Rd, Cahill Ridge 243 Comment
  UC1100217  Arundo donax Malcolm A. Nobs, S. Galen Smith 1949-8-25 1574 San Mateo s of Rockaway Beach Comment
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Jun 5 2008
  CAS-BOT-BC384619  Asarum caudatum J. Lovelle 1973-8-5 75 San Mateo Pomponio Canyon Comment
  SJSU10590  Asarum caudatum W. F. Larson 1973-4-16 San Mateo 5 mi E of La Honda 457 Comment
  RSA184853  Asclepias fascicularis L. S. Rose 1965-8-27 s.n. San Mateo Emerald Lake, West of Redwood City 122 Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  UCR254764  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA14211  Aster chilensis C. B. Wolf 1927-1-24 198 San Mateo Near Portola Comment
  RSA101026  Aster radulinus G. Oberlander 1949-7-10 364 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC186752  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC177967  Astragalus nuttallii var. virgatus V. F. Hesse 1921-7-30 70 San Mateo Salada Comment
  CAS-BOT-BC194427  Astragalus nuttallii var. virgatus Daniel Cohen 1953-5-9 98 San Mateo Beach at Pescadero Comment
  SEINET10775830  Astragalus pycnostachyus Charles F. Baker 1902-10-1 Baker 1744 San Mateo Pillar Point. Comment
  CAS-BOT-BC193095  Astragalus pycnostachyus var. pycnostachyus C. F. Leitholt 1894-7-1 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC389701  Asyneuma prenanthoides Lorene Sigal 1969-7-1 s.n. San Mateo Butano Girl Scout Camp Comment
  SEINET10532282  Athyrium filix-femina Mary Susan Taylor 1978-8-30 Taylor 1859 San Mateo Comment
  RSA478328  Atriplex leucophylla E. A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  POM263676  Atriplex leucophylla L. S. Rose 1941-9-27 41460 San Mateo Princeton. 1 Comment
  SEINET4135302  Atriplex leucophylla Lewis S. Rose 1941-9-27 41460 San Mateo Princeton, CA.; 0 2 Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  JROH5936  Atriplex prostrata Ann Lambrecht 2007-9-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek, left bank below Bear Creek confluence 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
  CAS-BOT-BC145999  Avena fatua John H. Thomas 1971-5-2 15869 E San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City. 152 Comment
  HSC9008  Avena fatua C. B. Wolf 1927-6-4 San Mateo South of San Gregorio Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC68329  Azolla filiculoides Roxana S. Ferris 1920-10-1 2102 San Mateo Santa Cruz Mountain Peninsula - Mud Lakes, Coalmine Ridge Comment
  UC42329  Azolla filiculoides F. T. Bioletti 1893-6-15 San Mateo Boden Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  CAS-BOT-BC99517  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 miles south of Pescadero 7 Comment
  CAS-BOT-BC99532  Baccharis pilularis A. D. E. Elmer 1903-2-1 s.n. San Mateo Portola Comment
  RSA51371  Baccharis pilularis L. S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  UC942900  Baccharis pilularis Lewis S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  JROH549  Baccharis pilularis subsp. consanguinea John H. Thomas 1970-7-5 15663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH550  Baccharis pilularis subsp. consanguinea Richard L. Garber 1971-7-13 62 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16624  Barbarea orthoceras Fred Hemphill 1973-3-17 711 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH1448  Barbarea orthoceras John Hunter Thomas 1981-4-21 20462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1450  Barbarea orthoceras John Hunter Thomas 1982-7-8 21078 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA482825  Barbarea orthoceras Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UCSB18661  Barbarea orthoceras Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH3931  Bellardia trixago Toni Corelli 2004-4-22 272 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9 between trail c and trail 10 on both sides of trail 190 Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC75663  Berberis nervosa Paul Arnaud 1941-6-5 s.n. San Mateo Redwood City, Woodrow Street. Comment
  CAS-BOT-BC75791  Berberis pinnata W. R. Dudley 1899-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek. Comment
  CAS-BOT-BC75872  Berberis pinnata Alice Eastwood 1913-2-22 s.n. San Mateo San Bruno Hills. Comment
  RSA435933  Berberis pinnata Paul C. Silva 1948-1-31 2623 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  CAS-BOT-BC66301  Blechnum spicant H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC66299  Blechnum spicant W. R. Dudley 1901-12-31 s.n. San Mateo along the upper Gazos Creek Comment
  CAS-BOT-BC31091  Bolboschoenus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Salt marsh near end of Embarcadero Road, Palo Alto Comment
  SEINET10927832  Bolboschoenus maritimus Lewis S. Rose 1935-8-13 Rose 35565 San Mateo Salada. Salt marsh. 3 Comment
  RSA119849  Bowlesia incana Hester R. Davis 1920-4-6 s.n. San Mateo Near San Francisquite Creek. Comment
  JROH3883  Boykinia occidentalis H. J. Dengler 1969-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North bank of San Francisquito Creek, opposite the base of trail to S.F. Creek on N.E.J.R., just above "falls" in creek. Comment
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UCR162537  Brachypodium sylvaticum John Beall 2003-12-4 s.n. San Mateo Santa Cruz Mtns., Woodside, on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit 427 Comment
  RSA187280  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC186699  Brassicaceae Fred Hemphill 1973-3-17 713 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4871  Briza maxima John Hunter Thomas 1987-5-15 24284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old picnic area above low flow crossing Comment
  CAS-BOT-BC145326  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  JROH4886  Briza minor John Hunter Thomas 1981-4-23 20469 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  UCSB17659  Brodiaea coronaria Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH4585  Brodiaea elegans subsp. elegans John Hunter Thomas 1986-6-7 24088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484347  Brodiaea elegans subsp. elegans Margaret A. Barry 1960-6-8 162 San Mateo slopes on Coal Mine Ridge Comment
  CAS-BOT-BC484352  Brodiaea elegans subsp. elegans F. H. Lamb 1895-6-14 s.n. San Mateo Along San Francis into Creek near St. Michael's Church Comment
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  JEPS109574  Brodiaea terrestris subsp. terrestris Dean W. Taylor 1994-5-10 14268 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
  SJSU658  Brodiaea terrestris subsp. terrestris A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  CAS-BOT-BC483176  Brodiaea terrestris subsp. terrestris James McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  CAS-BOT-BC144143  Bromus Ned Cahill 1974-4-29 189 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC227633  Bromus carinatus Peter Rubtzoff 1977-4-16 8950 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC148983  Bromus carinatus var. carinatus Le Roy Abrams 1902-5-11 2462 San Mateo Crystal Springs. Comment
  CAS-BOT-BC148984  Bromus carinatus var. carinatus Ira L. Wiggins 1928-4-22 2946 San Mateo Moss Beach. Comment
  CAS-BOT-BC148988  Bromus carinatus var. carinatus Margaret A. Barry 1937-5-15 99 San Mateo Coal Mine RIdge. Comment
  CAS-BOT-BC148992  Bromus carinatus var. carinatus John H. Thomas 1961-5-14 9374 B San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC149015  Bromus carinatus var. carinatus Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard, South San Francisco. Comment
  JEPS113029  Bromus carinatus var. carinatus Dean W. Taylor 1988-3-30 9482 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  JROH4899  Bromus carinatus var. carinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.F. Creek Trail -- east side trail. Comment
  CAS-BOT-BC155721  Bromus diandrus Margaret Barry 1937-5-8 29 San Mateo Coal Mine Ridge. Comment
  JROH4912  Bromus diandrus John Rawlings 2013-3-23 1130 San Mateo Jasper Ridge Biological Preserve, Stanford University. Where the brick path ends at the visitor parking lot from the Sun Field Station. 120 Comment
  UC1037112  Bromus diandrus Leo Whitney 1935-3-20 2267 San Mateo 10 mi s of Cliff House (Bayshore Highway, San Francisco); San Francisco Comment
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Nov 12 2011
  UCSB18541  Bromus diandrus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 mi SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mtns 152 Comment
  JROH4931  Bromus hordeaceus John Rawlings 2010-4-28 1093 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW corner of Sun Field Station. 119 Comment
  JROH5614  Bromus hordeaceus John Rawlings 2014-4-11 1217 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G in hard-packed dirt, immediately north of its intersection with Rd. J. 105 Comment
  SD30516  Bromus hordeaceus 1933-4-10 2 San Mateo Stanford University; Botany Garden Comment
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Apr 12 2012
  JROH4936  Bromus laevipes John Hunter Thomas 1989-6-13 24769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4951  Bromus madritensis subsp. rubens John Hunter Thomas 1989-5-11 24740 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC162227  Bromus maritimus John H. Thomas 1963-7-19 10196 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC162009  Bromus racemosus George Oberlander 1950-4-25 767 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC161747  Bromus rubens John H. Thomas 1965-4-29 10626 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  CAS-BOT-BC161752  Bromus rubens R. E. Frenkel 1964-5-26 511 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road. 320 Comment
  CAS-BOT-BC185397  Bromus vulgaris L. R. Abrams 1915-6-14 5562 San Mateo Kings Mountain Road. Comment
  POM277332  Bromus vulgaris Lyman Benson 1937-7-15 8452 San Mateo Upper San Francisquito Creek. Santa Cruz Mt. Range. 244 Comment
  UC1131105  Bromus vulgaris N. K. Carlson 1935-6-2 76 San Mateo Ridge between Oil Creek and Slate Creek 670 Comment
  CAS-BOT-BC233707  Buddleja davidii John H. Thomas 1966-9-11 12390 San Mateo 1 mile westward as measured along the road from the La Honda - Pescadero Road intersection Comment
  POM144327  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point. Comment
  POM199081  Calamagrostis A. D. E. Elmer 1903-06 4693 San Mateo San Pedro Comment
  CAS-BOT-BC185139  Calamagrostis nutkaensis John H. Thomas 1961-8-27 9708 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC185140  Calamagrostis nutkaensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain. Slope below parking lot. Comment
  JEPS127783  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-3-9 54 San Mateo Comment
  CAS-BOT-BC389677  Calandrinia ciliata Maryann Danielson 1967-4-16 s.n. San Mateo San Francisco Watershed near water temple Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  JROH3328  Calandrinia menziesii John Hunter Thomas 1981-4-5 20263 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCD123519  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula; Crow foot pond on Alpine Road, opposite the Fitzpatrick Place. Comment
  UC306621  Callitriche verna A. D. E. Elmer Jun 1903 4279 San Mateo Lake San Andreas Comment
  JROH4597  Calochortus albus John H. Thomas 1967-6-1 12976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4601  Calochortus albus John H. Thomas 1973-4-14 16572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC13852  Calochortus albus W. C. Blasdale 1893-6-23 San Mateo San Mateo Comment
  UC306641  Calochortus albus A. D. E. Elmer May 1903 4846 San Mateo San Mateo Comment
  CAS-BOT-BC492167  Calochortus albus Paul F. Covel 1936-4-24 271 San Mateo ft Saratoga Grade Comment
  CAS-BOT-BC492209  Calochortus albus Elmer I. Applegate 1895-4-8 727 San Mateo Page Mill Creek, above Stanford University Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  HSC23997  Calochortus albus Mary Katherine Wicksten 1971-6-16 45 San Mateo Huddart Park, woods near Oak Flat Comment
  JROH4614  Calochortus argillosus James McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  SJSU10003  Calochortus tolmiei L. S. Chan 1955-6-4 123 San Mateo Kings Mt Rd 1.5 mi W of woodside 243 Comment
  UC423011  Calochortus umbellatus J. Burtt Davy 1893-6-17 795 San Mateo Belmont Comment
  JROH559  Calycadenia multiglandulosa John H. Thomas 1959-8-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM351403  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  RSA124773  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  JEPS109222  Calystegia occidentalis subsp. occidentalis D. W. Taylor 2005-9-26 19491 San Mateo 1 mile S along coast from Franklin Point, Ano Nuevo State Reserve. Comment
  UC942937  Calystegia purpurata Lewis S. Rose 1950-5-20 50141 San Mateo hills w Redwood City (Emerald Lake Region); , w of Redwood City 243 Comment
  CAS-BOT-BC224649  Calystegia purpurata subsp. purpurata George Oberlander 1949-7-24 308 San Mateo San Franciso Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC224650  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  UC909351  Calystegia soldanella Ira L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Pescadero Beach (upper margin beach) Comment
  CAS-BOT-BC436449  Calystegia subacaulis Ned Cahill 1974-4-29 194 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC436450  Calystegia subacaulis L. R. Abrams 1902-5-4 2399 San Mateo Woodside Comment
  SEINET7040214  Camissonia brevipes A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South Quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH2995  Camissoniopsis micrantha John H. Thomas 1972-4-9 16065 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM60089  Campanula prenanthoides A. D. E. Elmer 1903-06 4283 San Mateo Pescadero Creek Comment
  CAS-BOT-BC37159  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1474  Capsella bursa-pastoris John Hunter Thomas 1978-5-9 19196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187412  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC37163  Capsella bursa-pastoris George Oberlander 1949-5-13 169 San Mateo San Francisco Watershed. North boundary. Comment
  SEINET5542273  Capsella bursa-pastoris H. S. Gentry 1931-1 77 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37659  Cardamine californica W. R. Dudley 1895-2-9 s.n. San Mateo Below Pescadero. Arroyo de las Friojoles. Comment
  CAS-BOT-BC37671  Cardamine californica J. H. Thomas 1949-3-29 186 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37673  Cardamine californica John H. Thomas 1958-2-15 6982 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  CAS-BOT-BC37675  Cardamine californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Upper slope of mountain below radio station. Comment
  JROH1485  Cardamine californica John Hunter Thomas 1983-4-5 21332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37665  Cardamine californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains. Above Fern Rock. Comment
  JEPS23932  Cardamine californica var. integrifolia LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Comment
  CAS-BOT-BC37987  Cardamine oligosperma John H. Thomas 1964-8-30 10372 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH581  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1981-5-8 20567 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC281837  Carduus tenuiflorus George Oberlander 1950-5-21 895 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  JEPS48963  Carex amplifolia James G. Daly 1934-1 424 San Mateo upper Corte de Madera Canyon Comment
  CAS-BOT-BC17852  Carex amplifolia George Oberlander 1950-5-21 958 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  JROH4319  Carex barbarae John Hunter Thomas 1989-6-6 24759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4322  Carex bolanderi Toni Corelli 2005-8-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Causeway, Trail 13, west of Leonard's Bridge. 106 Comment
  UC577167  Carex bolanderi Lewis S. Rose 1935-6-11 35216 San Mateo Kings Mountain Comment
  SEINET7552599 Image available Carex bolanderi Lewis S. Rose 1933-6-23 s.n. San Mateo Kings Mountain Steams. Comment
  CAS-BOT-BC18936  Carex densa Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4330  Carex densa John H. Thomas 1967-6-1 12984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC824431  Carex densa Lewis S. Rose 1935-5-4 35152 San Mateo Skyline Blvd. w San Bruno; Skyline Blvd. Comment
  CAS-BOT-BC18939  Carex densa W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  RSA91589  Carex densa L. S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  SEINET7556706 Image available Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near south San Francisco. Comment
  UC823331  Carex densa Lewis S. Rose 1937-5-16 37279 San Mateo S San Francisco 15 Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  SEINET10649935  Carex dudleyi Lewis S. Rose 1939-4-14 Rose 39064 San Mateo South San Francisco. 15 Comment
  JROH4342  Carex globosa John Hunter Thomas 1990-5-8 24851 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rock. Comment
  CAS-BOT-BC146604  Carex gynodynama Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5255 San Mateo Pescadero Comment
  CAS-BOT-BC146617  Carex gynodynama W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  CAS-BOT-BC21812  Carex harfordii George Thomas Oberlander 1950-4-23 847 San Mateo Cahill Ridge. Comment
  SEINET10883864  Carex laciniata Adolph D. E. Elmer Elmer 2958 San Mateo Lake Merced. Comment
  RSA10995  Carex nudata Carl B. Wolf 1928-3-13 1532 San Mateo San Francisquito Creek near Isolation Hospital-Stanford. Comment
  CAS-BOT-BC119345  Carex obnupta W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  RSA788837  Carex obnupta Peter Rubtzoff 1978-3-18 9173 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA796405  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
  CAS-BOT-BC117641  Carex serratodens LeRoy Abrams 1902-5-1 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117652  Carex serratodens Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  CAS-BOT-BC173826  Carex subbracteata Peter Rubtzoff; Roman Gankin 1975-5-21 7975 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5662  Carex subbracteata John Rawlings 2014-5-19 1252 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  POM79200  Carex subbracteata A. D. E. Elmer 1903-06 4429 San Mateo Crystal Springs Lake. Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  UC306626  Carex subbracteata A. D. E. Elmer June, 1903 4429 San Mateo Crystal Springs Lake Comment
  UC618444  Carex subbracteata John Thomas Howell 1938-5-1 13783 San Mateo near South San Francisco Comment
  SBBG47544  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco 15 Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC116818  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13779 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  CAS-BOT-BC116834  Carex subbracteata var. subbracteata Elmer Ivan Applegate 1895-3-3 778 San Mateo Unspecified Comment
  CAS-BOT-BC115506  Carex tumulicola John Thomas Howell 1938-5-1 13777 San Mateo San Bruno Hills. 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
  CAS-BOT-BC230108  Carpobrotus chilensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  RSA187415  Castilleja affinis John H. Thomas 1950-3-19 1305 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  RSA15252  Castilleja affinis Carl B. Wolf 1927-2-19 213 San Mateo Spring Valley Lakes where Skyline Drive Road turns off of Spring Valley Road. Comment
  CHSC57099  Castilleja affinis subsp. affinis Steven Triana 1988-5-24 200 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  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
  JROH3933  Castilleja affinis subsp. affinis H. A. Borthwick 1920-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3936  Castilleja affinis subsp. affinis Roger von Preissig 1954-4-23 26 b San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3949  Castilleja affinis subsp. affinis John Hunter Thomas 1983-4-14 21401 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3951  Castilleja affinis subsp. affinis John Hunter Thomas 1983-4-28 21780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3953  Castilleja affinis subsp. affinis John Rawlings 2013-4-23 1172 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail c. 180 Comment
  JROH5776  Castilleja affinis subsp. affinis John Rawlings 2016-3-22 1700 San Mateo Jasper Ridge Biological Preserve, Stanford University; near high point of steep serpentinite bank south of Bear Creek 95 Comment
  UC1036425  Castilleja affinis subsp. affinis G. B. Rossbach 1955-7-26 617 San Mateo near San Francisco County line (Route 1) Comment
  JEPS103888  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-6 7862 San Mateo 3 mi E of Fort Bragg, on route 20 Comment
  JEPS103892  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 Comment
  POM15341A  Castilleja ambigua subsp. ambigua Copeland 1903-6-3 3298 San Mateo Montara Point. Comment
  POM194753  Castilleja ambigua subsp. ambigua D. D. Keck 1927-6-10 394 San Mateo Radio Station, Montara Point. 0 Comment
  SJSU16024  Castilleja ambigua subsp. ambigua John Rawlings, Toni Corelli 2016-5-13 1791 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UC1012400  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame; Routh 101 0 Comment
  JROH3956  Castilleja attenuata John H. Thomas 1973-4-14 16562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS108121  Castilleja attenuata Dean Kelch 1993-3-30 s. n. San Mateo N of junction of I-280 and 92 nr SM Co Fire Dept. Comment
  SEINET7063806  Castilleja brevistyla A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  UC27286  Castilleja densiflora subsp. densiflora Ivar Tidestrom May 1894 San Mateo Comment
  CHSC42072  Castilleja foliolosa J. P. Arts 1986-3-30 17 San Mateo Ca. 4.1 miles w of Saratoga on Hwy. 9, ca. 8 miles n of Boulder Creek. 914 Comment
  POM176909  Castilleja foliolosa L. R. Abrams 1904-4-1 10 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. Comment
  SEINET12288672  Castilleja foliolosa Unknown 1932-1 8973 San Mateo Gov. Rolph Estate Comment
  NY68074  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  SD38138  Castilleja franciscana Marie Cummings 1933-5-23 3673 San Mateo Spring Valley Lake Comment
  CAS-BOT-BC243839  Castilleja latifolia John Thomas Howell 1933-4-9 10964 San Mateo Granada Comment
  CAS-BOT-BC243840  Castilleja latifolia John Thomas Howell 1933-4-9 10966 San Mateo Hills south of Pescadero Comment
  SD38274  Castilleja latifolia Edith A. Purer 1933-7-27 5374 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  SJSU661  Castilleja rubicundula subsp. lithospermoides A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  JEPS4838  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi and Alex D. Hawkes 1952-9-1 3962 San Mateo 0.7 mi w Pescadero (along old coast (county) road) Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  JEPS19720  Castilleja wightii Peter H. Raven 1957-6-24 10964 San Mateo just s Linda Mar Comment
  JEPS34323  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1328 San Mateo 500 ft se San Pedro Valley (town) (slopes above South Fork of San Pedro Creek, near home of John Gay) Comment
  JEPS66229  Castilleja wightii T. I. Chuang with Fei-Mei Chuang 1971-6-12 6908 San Mateo just s Arroyo de Los Frijoles State Beach (on U.S. Hwy 1) Comment
  JEPS85727  Castilleja wightii L. R. Heckard 1964-6-24 1395 San Mateo near San Bruno Mt. summit (n of transmitting stations); San Bruno Mt. 304 Comment
  UC138729  Castilleja wightii C. F. Baker 1902-4-12 508 San Mateo San Gregorio Comment
  UC198266  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  UC76054  Castilleja wightii Harley P. Chandler 1901-3-15 813 San Mateo w of Colma Comment
  JEPS6921  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4553 San Mateo 0.25 mi w (and below) Alpine Road junction with road to Portola State Park (along Alpine Road) 426 Comment
  JEPS88829  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7847 San Mateo ca 7 mi s Halfmoon Bay Comment
  RSA10286  Castilleja wightii H. A. Barker 1927-5-14 668 San Mateo North of Half Moon Bay. Comment
  RSA516565  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4564 San Mateo Along State Highway No. 1, 0.25 mile north of its junction with the old road (grade) over the hill to Swanton. Just above the seashore. 0 Comment
  SBBG100089  Castilleja wightii R. Bacigalupi 1954-6-18 4553 San Mateo Alpine Rd, 0.25 mi below and W of its jct with rd to Portola State Park 426 Comment
  CAS-BOT-BC39378  Caulanthus lasiophyllus John H. Thomas 1961-5-7 9315 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC39387  Caulanthus lasiophyllus H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Peninsula. Comment
  CAS-BOT-BC40392  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CAS-BOT-BC48394  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, w. of Redwood City 121 Comment
  JROH3519  Ceanothus cuneatus var. cuneatus Anne Constant 1955-4-8 4 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3522  Ceanothus cuneatus var. cuneatus Duncan M. Porter 1961-2-8 741 San Mateo Jasper Ridge Biological Preserve, Stanford University. N slope of ridge below picnic area near crest at N end of ridge Comment
  CAS-BOT-BC51595  Ceanothus oliganthus var. sorediatus Robert Robertson 1954-5-1 104 San Mateo by road 2 miles S.W. La Honda Junction 365 Comment
  JROH3528  Ceanothus oliganthus var. sorediatus Arthur Spiegler 1952-4-12 12 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3530  Ceanothus oliganthus var. sorediatus John H. Thomas 1973-3-12 16492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1071332  Ceanothus oliganthus var. sorediatus C. R. Clar 1928-11-6 7 San Mateo Langley Hills Santa Cruz quad. 670 Comment
  UCSB18628  Ceanothus oliganthus var. sorediatus Schulte, John 1963-4-14 San Mateo between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CDA29068  Ceanothus papillosus var. papillosus D. G. Kelch 2009-6-9 9 .389 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CDA34105  Ceanothus papillosus var. papillosus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .152 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  CAS-BOT-BC52276  Ceanothus thyrsiflorus Javier Penalosa 1963-3-9 2695 San Mateo Ravine 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC52279  Ceanothus thyrsiflorus Elizabeth McClintock 1963-2-16 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52284  Ceanothus thyrsiflorus L. R. A. 1901-4-20 1549 San Mateo King's Mountain Comment
  CAS-BOT-BC52297  Ceanothus thyrsiflorus R. Bacigalupi 1922-3-1 s.n. San Mateo lagoon Arroyo de los Frijoles Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
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Aug 11 2010
  SEINET12210826  Ceanothus thyrsiflorus W. Knight, Knight, I. 1982-1 4469 San Mateo Tilden Botanic Garden, Berkeley Comment
  JEPS21637  Centaurea calcitrapa John H. Thomas 1955-4-6 4831 San Mateo e facing slope of San Bruno Mountain, just n of South San Francisco San Bruno Mountain, South San Francisco 30 Comment
  UC30907  Centaurea calcitrapa Alice Eastwood 1896-9-1 San Mateo on the road to Crystal Springs Comment
  SD30655  Centaurea calcitrapa Edith A. Purer 1933-8-13 5423 San Mateo In an open field, Santa Clara Valley, near Belmont. Comment
  CAS-BOT-BC277119  Centaurea melitensis George Oberlander 1950-5-6 895 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  CAS-BOT-BC277126  Centaurea melitensis Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  UC625427  Centaurium davyi L. R. Abrams and I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point 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-BC279326  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  JROH1691  Cerastium glomeratum John H. Thomas 1968-3-17 14191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1693  Cerastium glomeratum John H. Thomas 1971-4-24 15772 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH149  Ceratophyllum demersum Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH150  Ceratophyllum demersum Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3615  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH1817  Chenopodium berlandieri var. sinuatum John Rawlings 2011-8-2 1100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  CHSC57077  Chenopodium californicum Steven Triano 1988-5-24 212 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA187281  Chenopodium californicum John H. Thomas 1965-4-29 10604 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM158031  Chenopodium macrospermum var. farinosum L. R. Abrams 1903-9-26 4018 San Mateo Border of Bay back of Menlo Park. Comment
  UCSB61628  Chenopodium murale True, Jr., Gordon 1937-10-16 San Mateo Near Thornton Beach 3 Comment
  CAS-BOT-BC497727  Chlorogalum pomeridianum John H. Thomas 1963-5-20 10127 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SD39112  Chlorogalum pomeridianum Edith A. Purer 1933-5-31 3618 San Mateo Grade to Half Moon Bay. Comment
  POM169774  Chlorogalum pomeridianum var. pomeridianum C. F. Baker 1903-6-30 3351 San Mateo Crystal Springs Comment
  UCR123135  Chondrilla juncea Don Pendleton 2002-5-2 s.n. San Mateo San Francisco Bay Region, San Carlos, across the street from 1414 El Camino Real, next to railroad right of way, at the 'T' intersection of Belmont Ave. and El Camino Real 61 Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
  RSA181223  Chrysanthemum leucanthemum John H. Thomas 1964-6-19 10424 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  CAS-BOT-BC36454  Chrysolepis chrysophylla William R. Dudley 1893-5-27 s.n. San Mateo Woodside Road Comment
  RSA121897  Chrysolepis chrysophylla C. M. Belshaw 1936-1-25 1462 San Mateo Kings Mountain road, 4.5 miles west of Woodside; South Coast Range. Comment
  CAS-BOT-BC36404  Chrysolepis chrysophylla var. minor Walter Knight 1964-9-14 830 San Mateo Forest of scores of sub trees ca. 4 m. [hi] and shorter on NW side of Peak Mt. summit - Montara Range Comment
  RSA0070580  Cirsium brevistylum L. R. Abrams, Ira L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point. Comment
  CAS-BOT-BC100942  Cirsium fontinale var. fontinale J. W. Congdon 1901-7-27 s.n. San Mateo Spring Valley Comment
  CDA1227  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  UC894974  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Crystal Springs Lake (along brooklet) Comment
  UC922266  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 Comment
  RSA0008390  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14743 San Mateo Crystal Springs Lake. Comment
  SD5924  Cirsium occidentale var. occidentale Ulysses S. Grant IV 1925-6-18 San Mateo Hillsborough Comment
  CAS-BOT-BC280135  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  CAS-BOT-BC280506  Cirsium quercetorum Peter H. Raven 1961-8-24 16587 San Mateo East side of Crystal Springs Lakes Comment
  JROH641  Cirsium vulgare John Hunter Thomas 1983-7-7 22813 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC172089  Clarkia davyi Peter H. Raven 1959-6-1 14455 San Mateo Pigeon Point Comment
  UC107814  Clarkia purpurea subsp. quadrivulnera Katharine Brandegee 1905-6-14 San Mateo Colma Comment
  UC1536827  Clarkia purpurea subsp. quadrivulnera Gordon H. True Jr. 1936-6-14 504 San Mateo canyon s Salada Beach 304 Comment
  CAS-BOT-BC165162  Clarkia rubicunda Alice Eastwood 1912-6-10 331 San Mateo Millbrae Comment
  CHSC27729  Clarkia rubicunda Coleta Lawler 1978-6-11 295 San Mateo W of Saratoga and SW of Los Altos; on Alpine Road, 0.5 miles southwest of State Hwy 35 (Skyline Blvd); along road cut. 304 Comment
  JROH3035  Clarkia rubicunda John Hunter Thomas 1987-5-19 24296 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165139  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 miles south of Sharp Park on State Highway 1 Comment
  CAS-BOT-BC165140  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  SD56674  Clarkia rubicunda Darley F. Howe 1963-7-31 3648 San Mateo 3 miles North of Pacifica on #1, on sea bluff. Comment
  SD88531  Clarkia rubicunda Darley F. Howe 1972-6-25 San Mateo Ocean bluff, 7.5 miles North of Half Moon Bay Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  CAS-BOT-BC165600  Clarkia unguiculata Josephine D. Randall 1907-6-5 258 San Mateo Los Trancos Road near Stanford University Comment
  JROH3330  Claytonia exigua subsp. exigua D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007733  Claytonia parviflora Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH5709  Claytonia parviflora subsp. parviflora John Rawlings 2015-3-15 1348 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 110 Comment
  CAS-BOT-BC443656  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-4-30 1962 San Mateo Montara 15 Comment
  CAS-BOT-BC91482  Clematis lasiantha Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell Property. Woodside. Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  JROH2872  Clinopodium douglasii John H. Thomas 1969-6-4 15110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2878  Clinopodium douglasii John Hunter Thomas 1977-6-16 18742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499373  Clintonia andrewsiana W. R. Bentley 1957-5-11 80 San Mateo State Hwy 1, 2 miles below Pescadero, Alt- sea level Comment
  CAS-BOT-BC499374  Clintonia andrewsiana Carl B. Wolf 1929-5-25 3736 San Mateo 2 mi. from Pescadero on Alpine Creek Comment
  RSA15294  Clintonia andrewsiana Carl B. Wolf 1927-4-3 263 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC240920  Collinsia multicolor Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. On north side of mountain 1/2 mi. east of Brisbane power lines Comment
  UC138812  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC1736312  Collinsia multicolor Dean W. Taylor 1994-5-10 14276 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  UC26675  Collinsia multicolor J. Burtt Davy Jun 21 1893-Jun 23 1893 1134 San Mateo Pilarcitos Lake and Canyon Comment
  CHSC55725  Collomia heterophylla Steven Triano 1988-5-24 260 San Mateo Along Old La Honda Road ca 0.6 mi s of its jct. with Portola Road and 3.8 mi s of Woodside. 176 Comment
  JROH3142  Collomia heterophylla John Hunter Thomas 1986-5-17 24056 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  POM279765  Collomia heterophylla Lyman Benson 1931-5-10 2798 San Mateo Kings Mountain 457 Comment
  RSA176753  Collomia heterophylla John H. Thomas 1961-5-5 9217 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  RSA10271  Collomia heterophylla H. A. Barker 1927-5-6 696 San Mateo Summit of Kings Mts. Comment
  CDA3338  Conicosia pugioniformis G. D. Barbe 1977-11-17 2355 San Mateo Thornton Beach State Park. 0 Comment
  CAS-BOT-BC285991  Conyza bonariensis Peter H. Raven 1950-6-3 2222 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  RSA120502  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-25 546 San Mateo Along ridge on border of Middleton property and Portola State Park, south side of road to park 396 Comment
  UCD138899  Corallorhiza striata K. L. Koch 1965-5-1 42 San Mateo on north side of Alpine Road, 1.4 miles from Portola Park turnoff. 426 Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4034  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, outskirts just down the road from the Escobar entrance Comment
  CAS-BOT-BC101479  Corethrogyne filaginifolia Miss Eastwood 1896-6-1 s.n. San Mateo Spring Lake Comment
  UC31243  Corethrogyne filaginifolia Alice Eastwood 1896-5-1 San Mateo Crystal Springs Comment
  RSA133854  Corethrogyne filaginifolia var. californica John H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  JROH1876  Cornus sericea subsp. sericea John Hunter Thomas 1985-4-25 23554 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway Comment
  JROH1881  Cornus sericea subsp. sericea John Hunter Thomas 1991-5-2 25014 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH1883  Cornus sericea subsp. sericea John Hunter Thomas 1991-8-4 25080 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  JROH5668  Cortaderia selloana John Rawlings 2013-12-3 1242 San Mateo Jasper Ridge Biological Preserve, Stanford University; west side of the Corte Madera Creek main channel, visible from Trail 13. 109 Comment
  UC5426  Corylus californica J. Burtt Davy Jun 21-23 1893 1125 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC180276  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-5-15 1110 San Mateo Upper Bitter Cherry Ravine. San Bruno Mountain Comment
  CAS-BOT-BC180364  Corylus cornuta subsp. californica W. R. Dudley 1903-7-10 23 San Mateo Corte de Madera Canon [canyon], Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC180370  Corylus cornuta subsp. californica Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road 3/4 of a mile above Woodside Comment
  RSA119710  Corylus cornuta var. californica James I. McMurphy 1902-05 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC287202  Cosmos bipinnatus Prof. W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mt Peninsula.l Opposite Halfmoon Bay Comment
  SEINET7876342 Image available Cotoneaster pannosus A. T. Whittemore 2001-1 01 -012 San Mateo Garden of 418 Hillway Drive., Redwood City 98 Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  SEINET11841252  Cotula coronopifolia E. H. Graham 1931-1 6928 San Mateo Ano Nuevo Point Comment
  SJSU2294  Cotula coronopifolia C. W. Sharsmith 1950-4-16 6623 San Mateo near Pescadero Point Comment
  UC1119273  Cotula coronopifolia G. E. Sindel 1935-7-25 313 San Mateo mouth Pescadero Creek Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  CAS-BOT-BC427832  Crassula connata John H. Thomas 1961-5-7 9260 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC427841  Crassula connata George Oberlander 1950-4-16 703 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC290925  Crepis vesicaria John Thomas Howell 1975-4-18 s.n. San Mateo From the home of Mrs. Hewlett Lee, Berenda Farm, Portola Valley Comment
  JROH667  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1967-6-1 12962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC19183  Crocanthemum scoparium var. scoparium J. Burtt Davy Jun 21 1893-Jun 23 1893 1157 San Mateo Pilarcitos Lake and Canyon Comment
  JROH1956  Croton setiger Duncan M. Porter 1960-10-12 727 San Mateo Jasper Ridge Biological Preserve, Stanford University; flat area on crest of the ridge (above area G) Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  SBBG32437  Cryptantha flaccida L. S. Rose 1966-5-2 66032 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH1375  Cryptantha micromeres D. E. Breedlove 1971-5-11 19331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  JROH1385  Cryptantha torreyana var. pumila Herbert Dengler 1961-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near round enclosure -- top of J.R. Comment
  JROH1384  Cryptantha torreyana var. pumila Herbert Dengler 1960-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; firetrail on top of Nolan Ridge (the ridge N.E. of Corte Madera Cr.) -- about 200 yds W. of Westridge border Comment
  CAS-BOT-BC80785  Cupressus macrocarpa Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue. Plants of San Bruno Mountain. Comment
  CAS-BOT-BC257693  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CDA5329  Cyclospermum leptophyllum J. T. Howell 1975-9-13 51507 San Mateo Hillside Street just west of El Camino, Burlingame. 0 Comment
  CDA6261  Cymbalaria muralis E. L. Labadie 1962-6-28 San Mateo San Mateo. 0 Comment
  CAS-BOT-BC287328  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  UC1195196  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo near Maple Street (between El Camino Real and railroad tracks, along or near a small creek running into Redwood Slough); Redwood City, Redwood Slough Comment
  JROH5002  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC42086  Cynoglossum grande Rusti Gammon 1986-3-30 2 San Mateo Ca. 8 mi s of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  RSA130412  Cynoglossum grande Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  UC572651  Cynoglossum grande Howard T. Morse 1937-4-13 San Mateo Loma Mar Comment
  SEINET5546120  Cynoglossum grande H. S. Gentry 1931-1 14 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JROH4385  Cyperus eragrostis W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  HSC7212  Cyperus eragrostis L. S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  RSA176822  Cytisus monspessulanus John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC198195  Cytisus scoparius Phillip C. Wheeler 1965-4-27 s.n. San Mateo Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC189821  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1988-6-28 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. 213 Comment
  JROH5027  Dactylis glomerata John Hunter Thomas 1987-5-26 24319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 Comment
  CAS-BOT-BC192239  Danthonia californica W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch hill, West of South Bruno Comment
  CAS-BOT-BC192240  Danthonia californica Roxana S. Ferris 1920-4-26 2021 San Mateo 2 mi south of Pescadero on Pigeon Pt. Road 30 Comment
  HSC82084  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow Comment
  SEINET3128861  Danthonia californica L. R. Abrams 1902-5-11 2451 San Mateo Capital Springs Comment
  SJSU15928  Danthonia californica John Rawlings, Toni Corelli 2016-4-29 1761 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  POM347040  Danthonia californica var. americana Lyman Benson 1930-4-26 2071 San Mateo Stanford University. 122 Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  RSA470468  Daucus pusillus T. Gertrude Williamson 1924-6-28 s.n. San Mateo Moss Beach Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  UC935705  Deinandra corymbosa David D. Keck 1931-10-5 1295 San Mateo 1.5 mi s Half Moon Bay road (Skyline Boulevard, summit of Cahil Ridge); Cahil Ridge 450 Comment
  CAS-BOT-BC299210  Deinandra corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach 16 Comment
  CAS-BOT-BC299195  Deinandra corymbosa subsp. corymbosa Hazelle A. Thomas 1956-6-24 s.n. San Mateo Arroyo de la Frioles along the coast Comment
  CAS-BOT-BC299230  Deinandra corymbosa subsp. corymbosa David D. Keck 1931-10-5 1295 San Mateo Skyline Boulevard, summit of Cahill Ridge, 1.5 miles south of Half Moon Bay Road 450 Comment
  CAS-BOT-BC292113  Delairea odorata James McMurphy 1905-10-19 s.n. San Mateo Above Portola Comment
  JROH679  Delairea odorata Le Roy Abrams 1902-1-7 2263 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH680  Delairea odorata Cary Tronson 2007-11-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near horse trail along Corte Madera Creek, near the collection site of many-flowered tobacco Comment
  CAS-BOT-BC292118  Delairea odorata John H. Thomas 1967-2-9 12404 San Mateo Montara. Near 3rd St. and Farallones Ave. Comment
  CAS-BOT-BC9216  Delphinium californicum J. H. Thomas 1974-5-7 17322 San Mateo San Bruno Mountain, along Guadalupe Parkway opposite school, western side of mountain Comment
  CAS-BOT-BC9223  Delphinium californicum J. H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA184849  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH3428  Delphinium californicum subsp. californicum John H. Thomas 1969-5-28 15080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9230  Delphinium decorum R. C. Bacigalupi 1922-3-1 s.n. San Mateo Near coast, vicinity of Pigeon Point Comment
  JROH3442  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3448  Delphinium hesperium subsp. hesperium John Hunter Thomas 1981-5-25 20637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3450  Delphinium hesperium subsp. hesperium John Rawlings, Carol Zabel, Ann Lambrecht 2005-5-25 1004 San Mateo Jasper Ridge Biological Preserve, Stanford University. In and along Road F in Area H serpentine grassland. 166 Comment
  POM177517  Delphinium nudicaule W. R. Dudley 1893-5-27 s.n. San Mateo Beyond King's Mt. Comment
  CAS-BOT-BC116527  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo By Redwood Stage road to Woodside Comment
  CAS-BOT-BC7891  Delphinium variegatum Mrs. John C. Angsbury 1932-4-1 s.n. San Mateo Kings. Mtn. Comment
  CAS-BOT-BC7926  Delphinium variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  POM270794  Delphinium variegatum subsp. variegatum Lyman Benson 1931-3-15 2638 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UCD166056  Dendromecon rigida Jack Major; M. Forde and S. Bamberg 1962-4-3 730 San Mateo Ano Nuevo Point. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC192599  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles Comment
  JROH5066  Deschampsia elongata John Hunter Thomas 1982-7-3 21061 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15414  Deschampsia elongata Toni Corelli 2010-5-21 670 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 20 Comment
  RSA17939  Deschampsia holciformis C. B. Wolf, Le Roy Abrams 1927-6-16 s.n. San Mateo On the west side of Spring Valley Lakes. Comment
  UCR51654  Dicentra formosa R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  UCSB44360  Dicentra formosa Brownell, K. 1979-3-27 San Mateo Gazoos Road, .6 miles east of Highway 1, near Butano State Park 76 Comment
  CAS-BOT-BC704  Dicentra formosa subsp. formosa Peter Rubtzoff 1953-5-14 1340 San Mateo Pilarcitos Creek canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  CAS-BOT-BC706  Dicentra formosa subsp. formosa Walter Knight; Irja Knight 1965-4-11 1024 San Mateo Guadalupe Road near big rock at Guadalupe Creek. Comment
  SEINET10833780  Dichelostemma capitatum Charles F. Baker 1902-5-4 Baker 76 San Mateo Woodside, Calif. Common in places near rocky outcrops. Comment
  SBBG51309  Dichelostemma capitatum subsp. capitatum J. Doty 1969-3-24 583 San Mateo N side of Page Mill Rd, ca. 0.5 mi W of Foothill Expressway; Palo Alto Comment
  CAS-BOT-BC502167  Dichelostemma congestum Fred Hemphill 1973-4-22 743 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC150459  Diplacus aurantiacus Robert Robertson 1954-5-1 108 San Mateo 2 miles E. of Pescadero 30 Comment
  CAS-BOT-BC150462  Diplacus aurantiacus Phillip Wheeler 1965-6-14 s.n. San Mateo Gladys Canyon in Brisbane Comment
  CAS-BOT-BC121859  Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  JROH4197  Dirca occidentalis Miss A. M. Patterson 1906-2-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  UC143369  Disporum hookeri C. F. Baker 1902-4-6 650 San Mateo Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC204220  Disporum smithii A. D. E. Elmer May, 1903 4697 San Mateo Butano Creek Comment
  JROH3384  Dodecatheon hendersonii Herbert Dengler 1959-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3385  Dodecatheon hendersonii John H. Thomas 1968-3-17 14179 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM49825  Dodecatheon hendersonii subsp. cruciatum L. R. Abrams 1902-4-5 2311 San Mateo Searrvill Comment
  CAS-BOT-BC389714  Drymocallis glandulosa Sharon Rogers 1966-4-23 s.n. San Mateo Area in Crystal Springs watershed, between North and South Gates of Filoli Estate Comment
  UC481507  Drymocallis glandulosa var. wrangelliana H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67882  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  CAS-BOT-BC67893  Dryopteris arguta David D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 304 Comment
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA693711  Dryopteris arguta E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  RSA693753  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo Comment
  JROH1809  Dysphania ambrosioides John H. Thomas 1974-10-29 17642 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CAS-BOT-BC208922  Echinochloa crus-galli George Oberlander 1949-9-25 393 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  JROH4307  Echinodorus berteroi John Hunter Thomas 1981-7-12 20701 San Mateo Jasper Ridge Biological Preserve, Stanford University; on sandy beach Comment
  JROH1912  Elatine brachysperma John Hunter Thomas 1982-8-13 21137 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7586900 Image available Eleocharis palustris Charles Piper Smith 1905-4-26 875 San Mateo Portola, Searsville Lake. Comment
  CAS-BOT-BC203680  Elymus glaucus subsp. glaucus Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235205  Elymus multisetus Ned Cahill 1974-5-30 306 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5119  Elymus multisetus D. E. Breedlove 1971-5-31 19370 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5122  Elymus multisetus John H. Thomas 1975-5-26 17910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5128  Elymus multisetus John Hunter Thomas 1981-5-19 20604 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA159423  Elymus multisetus John H. Thomas 1961-5-14 9384 B San Mateo Serpentine road bank and outcropping just north of dam on San Mateo Creek. 122 Comment
  CAS-BOT-BC183619  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  JROH3047  Epilobium brachycarpum John Hunter Thomas 1988-10-17 24601 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach 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
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3070  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  CAS-BOT-BC389734  Equisetum J. Lovelle 1973-8-5 48 San Mateo Pomponio Canyon Comment
  CAS-BOT-BC57028  Equisetum arvense A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  CAS-BOT-BC57614  Equisetum telmateia A. D. E. Elmer 1903-3-1 4501 San Mateo Portola Comment
  JROH70  Equisetum telmateia subsp. braunii John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27774  Equisetum telmateia subsp. braunii Carl B. Wolf 1927-4-3 255 San Mateo Santa Cruz Mountains, 1 mile above La Honda 245 Comment
  UC150823  Equisetum telmateia subsp. braunii C. F. Baker 1902-3-18 324 San Mateo w side King's Mt. Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  RSA15198  Equisetum telmateia var. braunii C. B. Wolf 1926-10-19 75 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA15287  Equisetum telmateia var. braunii C. B. Wolf 1927-4-3 255 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA684684  Equisetum telmateia var. braunii J. Doty 1969-3-27 608 San Mateo S side of State Hwy 84, ca 500 W of Bridge No. 35-165, ca 6 miles E of State Hwy 1. Comment
  SEINET3866732  Equisetum telmateia var. braunii L. Thorne, N. Thorne 1990-7-4 14 San Mateo Butano Canyon above Pescadero.; 0 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
  CAS-BOT-BC299886  Erechtites glomeratus Ira L. Wiggins 1934-8-11 6970 San Mateo Beside tannery, Redwood City Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  JEPS112717  Eriastrum abramsii Dean W. Taylor 1994-5-10 14261 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
  JROH3148  Eriastrum abramsii John Hunter Thomas 1977-6-16 18770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1347212  Eriastrum abramsii Lewis S. Rose 1936-5-28 36305 San Mateo w Redwood City; Emerald Lake 91 Comment
  CAS-BOT-BC512627  Eriastrum abramsii Lewis S. Rose 1937-9-21 37659 San Mateo Emerald Lake 182 Comment
  RSA0103881  Eriastrum abramsii L. S. Rose 1937-9-21 37659 San Mateo Emerald Lake. 183 Comment
  CAS-BOT-BC300613  Erigeron foliosus var. franciscensis Fred Hemphill 1973-5-14 813 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-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
  CHSC57066  Erigeron glaucus Steven Triano 1988-5-24 215 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JEPS89680  Erigeron glaucus Dean W. Taylor 1988-3-30 9466 San Mateo northern slope of se ridge of San Bruno Mountain (near the ridgecrest, right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain); Central Coast Region (CCo), San Bruno Mountain 176 Comment
  UC1536738  Erigeron glaucus G. H. True Jr. 1936-6-7 482 San Mateo top of seaside bluff at cove 2 mi s of Pescadero 15 Comment
  UCR240776  Erigeron glaucus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3521 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-BC295074  Erigeron glaucus Barrett Anderson; Peter Rubtzoff 1988-4-26 3674 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway 365 Comment
  CAS-BOT-BC295090  Erigeron glaucus Ernest C. Twisselmann 1955-11-19 2496 San Mateo Crocker Estate, Diamont Heights 152 Comment
  SD234039  Erigeron glaucus Virginia Pinkus Ryder 1964-2-21 77 San Mateo 1 mile past Greyound Rock. 29 Comment
  JROH692  Erigeron karvinskianus Herbert Dengler 1965-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Cr. about 2' above water - N.W. of Searsville Rocks - (about 200' below Dennis Martin mill site of ca. 1849) Comment
  CAS-BOT-BC300063  Erigeron philadelphicus Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain. To south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC216131  Eriodictyon californicum Fred Hemphill 1973-5-6 753 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216243  Eriodictyon californicum Josephine D. Randall 1907-6-29 164 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC216248  Eriodictyon californicum Margaret A. Barry 1937-6-20 185 San Mateo Coal Mine Ridge Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2724  Eriodictyon californicum John H. Thomas 1973-5-5 16767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65463  Eriodictyon californicum A. D. E. Elmer 1903-04 4801 San Mateo Lake San Andreas Comment
  SBBG29988  Eriodictyon californicum H. A. Barker, M. Dearing 1926-5-1 590 San Mateo King's Mtn Comment
  UC24063  Eriodictyon californicum J. Burtt Davy 1893-6-17 720 San Mateo Belmont Comment
  CAS-BOT-BC216244  Eriodictyon californicum Josephine D. Randall 1907-7-24 166 San Mateo Road to Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC250547  Eriogonum gracile Cherie Wetzel 1969-6-20 872 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250541  Eriogonum gracile Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. Canyon south of Pig Ranch Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 Comment
  CAS-BOT-BC251982  Eriogonum latifolium Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  POM165067  Eriogonum latifolium A. D. E. Elmer 1903-07 4557 San Mateo Half Moon Bay. Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  UC1442465  Eriogonum latifolium James L. Reveal 1968-8-6 San Mateo San Gregorio Beach Comment
  UC1537277  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo cove 2 mi s Pescadero 15 Comment
  CAS-BOT-BC251993  Eriogonum latifolium Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC251998  Eriogonum latifolium R. S. Ferris 1917-10-21 730 San Mateo ocean cliff - Moss Beach Comment
  RSA176255  Eriogonum latifolium Robert F. Thorne, Percy C. Everett 1963-6-9 32238 San Mateo On top of San Bruno Mountain 335 Comment
  CAS-BOT-BC266075  Eriogonum luteolum Ned Cahill 1974-10-8 382 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  JEPS111096  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -4 San Mateo Edgewood County Park, along upper part of Clarkia Trail just as it enters chaparral Comment
  JROH3224  Eriogonum luteolum var. luteolum A. G. Vestal 1937-7-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of ridge not far from Stanford property line. Comment
  RSA423118  Eriogonum luteolum var. luteolum E. A. Purer 1933-8-25 s.n. San Mateo Skyline Blvd, on hillside near Schullser tablet Comment
  CAS-BOT-BC269000  Eriogonum nudum var. auriculatum Javier Penalosa 1963-3-30 2717 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  RSA393324  Eriogonum nudum var. auriculatum E. A. Purer 1933-8-25 5522 San Mateo Spring Valley Lakes Comment
  SD38941  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-25 5522 San Mateo Along roadside, Spring Valley Lakes Comment
  CAS-BOT-BC304072  Eriophyllum confertiflorum Fred Hemphill 1973-5-6 776 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304080  Eriophyllum confertiflorum H. A. Dutton 1900-3-25 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  CDA5251  Eriophyllum confertiflorum P. Arnand 1959-5-31 2515 San Mateo Redwood City. 0 Comment
  RSA675661  Eriophyllum confertiflorum L. S. Rose 1950-5-20 50142 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  JROH707  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH720  Eriophyllum lanatum var. arachnoideum John H. Thomas 1962-7-15 9912 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  RSA463088  Eriophyllum lanatum var. arachnoideum Lyman Benson 1937-8-7 8486 San Mateo La Honda Road, Santa Cruz Mt. Range, San Francisco Bay Watershed 244 Comment
  CAS-BOT-BC301265  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. W. Union Gulch, back of winery Comment
  LA203607  Eriophyllum latilobum Ira L. Wiggins; 1929-7-4 3785 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  NY168698  Eriophyllum latilobum A. A. Heller 1907-5-28 8584 San Mateo This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC301969  Eriophyllum staechadifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM358130  Eriophyllum staechadifolium Glenn A. Gorelick 1967-5-5 s.n. San Mateo San Bruno Mts., overlooking Daly City near San Francisco Comment
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  CDA5407  Eriophyllum staechadifolium var. artemisiifolium F. E. Blanc 1960-6-28 4566 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  JROH2602  Erodium botrys John H. Thomas 1975-4-19 17800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007744  Erodium cicutarium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH2608  Erodium moschatum John Rawlings 2012-5-25 1106 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dennis Martin site near Road B. 79 Comment
  POM204324  Eryngium armatum I. L. Wiggins 1929-7-4 3794 San Mateo Pescadero Beach Comment
  SD88370  Eryngium armatum Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  JROH236  Eryngium jepsonii John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54838  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo Crest of San Bruno Mountain near radio tower. 400 Comment
  CAS-BOT-BC54881  Erysimum franciscanum Roxana S. Ferris 1921-4-7 2147 San Mateo Santa Cruz Mountains. San Bruno Mountain. 182 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54885  Erysimum franciscanum Roxania Strichfield 1916-3-10 264 San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Lake. Comment
  CDA24853  Erysimum franciscanum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JEPS90155  Erysimum franciscanum Dean W. Taylor 1994-5-10 14277 San Mateo along Crystal Springs Road 0.3 mi e of junction of Tartan Trail (Santa Cruz Mountains, San Mateo Creek drainage); Santa Cruz Mountains, San Mateo Creek drainage 67 Comment
  RSA51239  Erysimum franciscanum P. H. Raven 1950-4-16 1781 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC1034707  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo open rocky summit near radio tower (crest of mt); San Bruno Mountain 400 Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  PGM186  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  RSA0001945  Erysimum franciscanum G. B. Rossbach 1955-3-26 572 San Mateo High seaward slope 2 mi. S of San Francisco line & 3 mi. N of Sharp Peak (Salada). Comment
  SJSU15961  Erythranthe guttata John Rawlings, Ken Hickman 2016-5-26 1837 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SD234189  Erythranthe guttata Virginia Pinkus Ryder 1964-2-21 78 San Mateo Near Davenport. 3 Comment
  CAS-BOT-BC420646  Escallonia rubra var. macrantha Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo Uncommon, along Guadalupe Canyon Parkway west of the park kiosk, on the north side of the parkway. 182 Comment
  CAS-BOT-BC403552  Eschscholzia californica Ned Cahill 1974-4-18 124 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403532  Eschscholzia californica W. R. Dudley 1894-3-25 s.n. San Mateo Santa Cruz Peninsula. Near Bebble Beach at Pescadero Comment
  CAS-BOT-BC403541  Eschscholzia californica H. A. Dutton 1900-4-29 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC403547  Eschscholzia californica John H. Thomas 1963-5-20 10099 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  POM272330  Eschscholzia californica subsp. californica Lyman Benson 1930-4-6 2045 San Mateo Moss Beach. 15 Comment
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC110570  Eschscholzia crocea T. S. Brandegee May 22 s.n. San Mateo La Honda. Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0012612  Eucalyptus globulus John H. Thomas 1965-4-13 10566 San Mateo In San Carlos along El Camino Real. Comment
  CAS-BOT-BC202739  Euonymus occidentalis A. D. E. Elmer 1903-6-1 4280 San Mateo Lake San Andreas Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  RSA130686  Euphorbia crenulata Roxana S. Ferris 1921-3-20 2114 San Mateo Pescadero - La Honda Road. 183 Comment
  JROH5918  Eurybia radulina John Hunter Thomas 1986-5-15 24042 San Mateo Jasper Ridge Biological Preserve, Stanford University 88 Comment
  CAS-BOT-BC310616  Eurybia radulina W. R. Dudley 1896-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. Old Cable Trail near Searsville Comment
  JROH530  Eurybia radulina Carol Zabel 2005-8-1 54 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5148  Festuca arundinacea John Hunter Thomas 1977-6-16 18752 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH5150  Festuca arundinacea John Hunter Thomas 1979-5-22 19578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5174  Festuca arundinacea John Rawlings 2009-5-13 1030 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 9 in Buckeye Alley. 135 Comment
  JROH5474  Festuca bromoides John Hunter Thomas 1984-4-24 23315 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5689  Festuca bromoides John Rawlings 2015-2-21 1281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 on north side of Jasper Ridge 167 Comment
  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-BC278347  Festuca californica subsp. californica Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon Comment
  CAS-BOT-BC278352  Festuca californica subsp. californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By road to Kings Mt. Comment
  POM296651  Festuca californica var. californica Lyman Benson 1930-5-3 2100 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  UC1106220  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo woods around San Andreas Lake San Andreas Lake Comment
  JROH5485  Festuca microstachys John Rawlings 2005-3-30 1016 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing around and in cracks of serpentine rock outcrops in north-facing serpentine grassland (Area H), uphill and west of the exclosure. 146 Comment
  CAS-BOT-BC278864  Festuca occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek near Iverson's Place Comment
  JROH5507  Festuca octoflora John Rawlings 2009-5-4 1029 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Trail 9 where the trail make a sharp bend below the holly-leaved cherry alley and trends slightly uphill 142 Comment
  JROH5282  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5288  Festuca perennis John Hunter Thomas 1986-5-6 24020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  SEINET3892512  Fragaria chiloensis R. L. Johnson 2012-4-6 12 -004 San Mateo Half Moon Bay, Redondo Beach Rd. overlooking Pacific Ocean.; 0 25 Comment
  CAS-BOT-BC437033  Fragaria chiloensis Robert Robertson 1954-4-17 79 San Mateo North of Moss Beach (Montara) 9 Comment
  CAS-BOT-BC437034  Fragaria chiloensis J. H. Thomas 1949-6-4 576 San Mateo 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  UC137341  Fragaria vesca C. F. Baker 1902-1-15 233 San Mateo w side King's Mountain Comment
  JROH5912  Fragaria vesca L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Fracisquito Creek, east of the Redwood grove Comment
  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-BC457530  Fragaria vesca subsp. californica J. H. Thomas 1949-4-14 281 San Mateo Kings Mountain Comment
  CAS-BOT-BC52682  Frangula californica subsp. californica Phillip C. Wheeler 1965-5-18 s.n. San Mateo adjacent to Olivet Cemetery Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC18511  Frangula purshiana J. Burtt Davy 1895-4-21 1064 San Mateo Pilarcitos Creek Comment
Read comments
Jul 18 2008
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  UC1191594  Frankenia salina Malcolm A. Nobs and S. Galen Smith 1949-8-26 1599 San Mateo marshes at mouth Pescadero Creek Comment
  SEINET6941833  Frankenia salina Robert A. Evers, Clara V. Evers 1975-8-24 115021 San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC223550  Fraxinus latifolia Herman Knoche 1919-10-8 Series A, No. 2488 San Mateo Between Crystal Springs & San Mateo Comment
  CAS-BOT-BC223549  Fraxinus latifolia W. R. Dudley 1894-4-13 s.n. San Mateo Santa Cruz Peninsula. By San Francisquito Creek near Big Tree Comment
  CAS-BOT-BC130130  Fritillaria affinis A. D. E. Elmer 1903-5-1 5045 San Mateo Portola Comment
  JEPS55687  Fritillaria affinis W. Roderick 1962-2-10 San Mateo Mount San Bruno 3 Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  SEINET12054472  Fritillaria affinis Unknown 1932-1 8965 San Mateo La Honda Road Comment
  SEINET8501280 Image available Fritillaria affinis L. M. Henry, M. E. Springer 1946-7-21 371 San Mateo La Honda Comment
  POM196568  Fritillaria agrestis Roxana S. Ferris 1921-3-21 s.n. San Mateo Santa Cruz Mountain Penisula: New Years Point Comment
  CAS-BOT-BC130384  Fritillaria liliacea Marion Gallagher 1978-3-3 s.n. San Mateo At Farm Hill School Site, above Redwood City and opposite [Canada] Canada College, just off 280 at Farm Hill off ramp Comment
  JEPS61919  Fritillaria liliacea Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  CDA20772  Fumaria capreolata D. Pendleton 2006-6-13 PDR 1381606 San Mateo Old Jackson Orchard Nursery, Pescadero Creek Rd.. Comment
  CAS-BOT-BC422449  Fumaria capreolata Philip Morgan 1985-5-1 s.n. San Mateo Growing at the base of Montara Mountain. Comment
  CDA28822  Galium aparine D. G. Kelch 2009-6-9 9 .401 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 Comment
  UCR121582  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4982 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3799  Galium murale John H. Thomas 1976-4-30 18103 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA100976  Galium porrigens G. Oberlander 1949-7-30 292 San Mateo Cahill Ridge. San Francisco Watershed Reserve. Comment
  CAS-BOT-BC303465  Gamochaeta ustulata Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo Upper Colma Canyon, San Bruno Mt Comment
  OBI14169  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  POM222795  Garrya elliptica K. L. Dole 1909-2-27 s.n. San Mateo Jasper Ridge. 183 Comment
  SEINET12137147  Garrya elliptica Cummings 1933-1 s.n. San Mateo top of Jasper Ridge Comment
  JROH5185  Gastridium phleoides John H. Thomas 1973-6-10 16809 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2006  Genista monspessulana John H. Thomas 1961-5-5 9208 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH5860  Genista monspessulana Toni Corelli 2004-3-24 267 San Mateo Jasper Ridge Biological Preserve, Stanford University. along main gate road, northwest of road 121 Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  JROH2627  Geranium molle John H. Thomas 1975-4-18 17782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5693  Gilia achilleifolia subsp. multicaulis John Rawlings 2015-3-31 1416 San Mateo Jasper Ridge Biological Preserve, Stanford University; sepentine prairie on ridge top south of a shallow drainage 128 Comment
  JROH3150  Gilia achilleifolia subsp. multicaulis D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont Comment
  UC184620  Gilia tricolor subsp. tricolor Mrs. Inez Ray Smith 1915-5-26 San Mateo near Crystal Springs (Hillsborough); , near Crystal Springs Comment
  POM284863  Githopsis specularioides Lyman Benson 1930-4-17 2082 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  POM359103  Grindelia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  SD12565  Grindelia arenicola Edith A. Purer 1933-7-27 5369 San Mateo 2 miles south of Pigeon Point Comment
  CAS-BOT-BC304502  Grindelia hirsutula Roxana Stinchfield 1915-9-19 252 San Mateo Santa Cruz Mountain Peninsula. Palo Alto Comment
  CAS-BOT-BC304521  Grindelia hirsutula J. T. Howell No date on label s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC304527  Grindelia hirsutula John H. Thomas 1961-8-27 9707 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC304543  Grindelia hirsutula W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. By Cahill Ridge Road nor. of McFarland's Comment
  CAS-BOT-BC304544  Grindelia hirsutula W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula. Near San Mateo Comment
  JEPS17019  Grindelia hirsutula Rimo Bacigalupi with J. R. Sweeney, G. Bacigalupi Jr., and C. Fenneman 1954-8-3 4738 San Mateo rocky road berm directly above Point San Pedro Comment
  POM203263  Grindelia hirsutula J. T. Howell 1933-5-26 11348 San Mateo Crystal Springs Lake. Comment
  RSA296414  Grindelia hirsutula R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4550 San Mateo Along Alpine Road, 0.25 mile W of Skyline Blvd. 701 Comment
  UC1599358  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of mt.); San Bruno Mt. 335 Comment
  UC520408  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-8 3685 San Mateo exposed slope near sea Ft. Winfield Scott 35 Comment
  UCSB24492  Grindelia hirsutula McMinn, Howard 1922-6-22 San Mateo Court road & Half Moon Bay Comment
  SEINET7010152  Grindelia humilis R. A. Evers, Clara V. Evers 1975-8-24 115023 San Mateo Trailer Villa, Redwood City. Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  SEINET11843441  Grindelia stricta var. angustifolia L. S. Rose 1938-1 38229 San Mateo Brisbane 2 Comment
  RSA638982  Grindelia stricta var. platyphylla R. F. Thorne, Percy C. Everett 1965-8-1 35075 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  UCSC006056  Grindelia stricta var. platyphylla Randall Morgan 1999-7-12 3587 San Mateo 1+ mile north of Bean Hollow State Beach Comment
  POM143655  Guillenia lasiophylla C. F. Baker 1902-4-6 459 San Mateo Crystal Springs Lake. Comment
  OBI4246  Hedera canariensis Carol Wong 1970-3-28 28 San Mateo Emerald Lake, Redwood City. On the side of the lake just after crossing the bridge. Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH440  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH863  Helianthella californica var. californica John Hunter Thomas 1991-5-9 25042 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305333  Helianthella castanea Miss E. Cannon 1899-9-1 s.n. San Mateo South San Francisco hills Comment
  CAS-BOT-BC305334  Helianthella castanea Miss E. Cannon 1892-6-1 s.n. San Mateo Hills near the Bay, South S.F. Comment
  JEPS67985  Heliotropium curassavicum Dr. L. M. Newlon 1921-1 247 San Mateo seashore between Salada and Mussel Rock Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  SJSU3591  Helminthotheca echioides A. I. Wilson 1967-9-18 2 San Mateo by W side Los Trancos Cr c. midway between Portola Valley & Palo Alto Comment
  CAS-BOT-BC314919  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 182 Comment
  LA27292  Hemizonia congesta subsp. luzulifolia Lewis S. Rose; 1941-10-24 41470 San Mateo Belmont 6 Comment
  UC134605  Hemizonia congesta subsp. luzulifolia C. F. Baker 1908-6-30 3350 San Mateo Crystal Springs Comment
  UC193423  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (from along road n of creek and up side of hill to n); San Mateo Creek Comment
  CAS-BOT-BC313455  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-1 s.n. San Mateo Summit Crystal Springs-Belmont Road Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  UC193426  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10232 San Mateo Hills west of Milbrae, near summit of road from Milbrae west to the lakes Comment
  RSA52665  Hemizonia corymbosa subsp. corymbosa I. L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach. Comment
  RSA81678  Hemizonia luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo E of causeway, Crystal Springs Lakes. Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  UC1084378  Heracleum lanatum G. Thomas Robbins 1937-4-11 75 San Mateo along Skyline Blvd. s. of San Francisco Comment
  RSA18317  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  UCSB17224  Hesperevax sparsiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH890  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH899  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-2 25008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  CAS-BOT-BC176210  Hesperolinon congestum L. R. Abrams 1920-6-1 7497 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
  UC1187062  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo e side Upper Crystal Springs Lake 100 Comment
  JROH2938  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139231  Hesperolinon micranthum A. D. E. Elmer 1903-05 4422 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC422603  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148465  Heteromeles arbutifolia J. H. Thomas 1949-10-16 1156 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  JROH3679  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681422  Heteromeles arbutifolia Annuschka Deb 1989-1-27 14 San Mateo Woodside. Comment
  UC1577655  Heterotheca sessiliflora subsp. echioides N. K. Carlson 1935-6-21 77 San Mateo Ridge between Slate and Oil Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC310764  Heterotheca sessiliflora subsp. echioides W. R. Dudley 1906-10-12 s.n. San Mateo Santa Cruz Mountain Peninsula. In Gulch E. of Jersey Farm Comment
  CAS-BOT-BC310770  Heterotheca sessiliflora subsp. echioides C. F. Leitholt 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda road Comment
  UCR121560  Heuchera micrantha George K. Helmkamp, E. A. Helmkamp 1999-6-28 4975 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC420896  Heuchera micrantha var. diversifolia Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC729863  Heuchera micrantha var. diversifolia Carl B. Wolf 1929-6-8 3747 San Mateo along head of San Francisquito Creek; Searsville Lake 91 Comment
Read comments
Jul 14 2009
  CAS-BOT-BC420889  Heuchera micrantha var. diversifolia Kellogg; Brannan 1880-5-31 s.n. San Mateo Redwoods 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
  CAS-BOT-BC424429  Heuchera pilosissima W. R. Dudley 1900-3-17 s.n. San Mateo By down grade from Montara Mts to San Pedro Comment
  OBI49218  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mtn 671 Comment
  UCR121585  Hieracium argutum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4964 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  POM87688  Hierochloe occidentalis Le Roy Abrams 1902-1-7 2258 San Mateo Kings Mts. Comment
  CAS-BOT-BC55433  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  CAS-BOT-BC228580  Holodiscus discolor Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1938 San Mateo San Bruno State Park, Summit Loop Trail just above the Eucalyptus grove N of the road from the parking area, NE-facing slope 238 Comment
  RSA449783  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  UCR121543  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UCR122982  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6781 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-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  CAS-BOT-BC150062  Holodiscus discolor var. discolor Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon Comment
  JROH3689  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  JROH5931  Holodiscus discolor var. discolor L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station on the top of Jasper Ridge. Comment
  POM190456  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  RSA6305  Hordeum brachyantherum D. D. Keck 1965-5-6 1465 San Mateo Belmont Comment
  CAS-BOT-BC284684  Hordeum brachyantherum subsp. brachyantherum George Oberlander 1950-4-16 718 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  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
  JROH5225  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1979-5-22 19575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM295720  Hordeum depressum Lyman Benson 1930-5-12 2125 San Mateo Stanford University. 152 Comment
  POM295721  Hordeum depressum Lyman Benson 1931-5-29 2812 San Mateo Santa Cruz Mountain Range 244 Comment
  CAS-BOT-BC285147  Hordeum marinum subsp. gussoneanum Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC285152  Hordeum marinum subsp. gussoneanum W. R. Dudley 1902-4-1 s.n. San Mateo Unspecified Comment
  JROH5237  Hordeum marinum subsp. gussoneanum John H. Thomas 1967-6-1 12952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5244  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-19 20606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC271353  Hordeum vulgare J. H. Thomas 1962-5-12 9862 San Mateo Franklin Point, about sea level Comment
  CAS-BOT-BC271358  Hordeum vulgare Ned Cahill 1974-5-13 269 San Mateo Near the intersection of Canada and Edgwood Roads about 3 mi. westward from Redwood City Comment
  SEINET6755152  Horkelia cuneata subsp. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco. ( on the Lake Merced side of the Ocean Shore tracks) Comment
  LA47914  Hosackia gracilis C. F. Baker; 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  SD27829  Hosackia gracilis Carl B. Wolf 1929-5-10 3703 San Mateo Pigeon Point, south of Pescadero 99 Comment
  JROH2769  Hypericum calycinum John Rawlings, Ann Lambrecht 2008-7-23 0935 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of SF Creek and west of the Low Flow Crossing 81 Comment
  UCD160239  Hypericum canariense Christopher Dillis 2015-5-15 1 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 200 m on unmarked 1-lane dirt road; 60 m north-northeast of intersection with Old Coast Highway. 200 Comment
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  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
  UC101765  Hypochaeris glabra Katharine Brandegee 1891-6-1 San Mateo South San Francisco Comment
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Apr 1 2009
  CAS-BOT-BC311481  Hypochaeris radicata Louis F. Pitelka 1973-4-22 797 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311487  Hypochaeris radicata W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. So. Cahill Ridge Comment
  RSA24256  Iris douglasiana Carl B. Wolf 1940-11-12 9787 San Mateo North base of San Bruno Mountain or just south of Visitation Valley 152 Comment
  CAS-BOT-BC133656  Iris longipetala John H. Thomas 1955-4-6 4838 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC133664  Iris longipetala Alice Eastwood 1914-3-12 3751 San Mateo San Bruno Hills Comment
  CAS-BOT-BC133670  Iris longipetala Walter Knight; Irja Knight 1964-1-15 508 San Mateo South slope, Colma Canyon Comment
  SBBG32267  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mts, S San Francisco 30 Comment
  SEINET5555919  Iris longipetala H. S. Gentry 1931-1 60 San Mateo Collected 2 miles W of San Bruno. Comment
  POM168969  Iris macrosiphon A. D. E. Elmer 1903-05 4503 San Mateo Portola Comment
  UC571173  Iris macrosiphon A. E. Borell 1928-4-1 58 San Mateo San Bruno Mountains Comment
  UC184381  Isocoma menziesii var. vernonioides Harriet A. Walker 1915-9-19 3833 San Mateo near Uncle Tom's Cabin; road to Burlingame Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  CAS-BOT-BC112619  Isolepis cernua W. R. Dudley 1906-10-12 s.n. San Mateo Near sink 14. Comment
  SBBG28003  Jaumea carnosa L. S. Rose 1935-8-13 San Mateo Salada Comment
  JROH2772  Juglans hindsii John Hunter Thomas 1978-7-14 19262 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the west of the low flow crossing of San Francisquito Cr. Comment
  CAS-BOT-BC109971  Juncus James McMurphy 1909-10-17 s.n. San Mateo San Gregorio. Lagoon. Comment
  JROH4522  Juncus John H. Thomas 1973-3-12 16487 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC350921  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction, San Bruno Mountains. Comment
  RSA0064345  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction, San Bruno Mountains. Comment
  SEINET10879451  Juncus balticus P. Rubtzoff, Elizabeth M. McClintock 1989-8-31 Rubtzoff 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of the Saddle Trail junction, San Bruno Mountains. Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  JROH4450  Juncus bufonius var. bufonius John H. Thomas 1974-5-19 17384 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101043  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14030 San Mateo Mouth of Gazos Creek Comment
  SJSU15214  Juncus capitatus Toni Corelli 2011-4-28 700 San Mateo Ano Nuevo, Cascade Field, junction of Cascade Creek Trail and Atkinson Bluff Trail 9 Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  JROH4474  Juncus hesperius Toni Corelli 2008-10-1 346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in muddy area on shelf of dried lake bed. 103 Comment
  RSA101009  Juncus macrandrus G. Oberlander 1949-7-30 300 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  JROH4484  Juncus occidentalis John Hunter Thomas 1978-5-16 19215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4497  Juncus occidentalis John Hunter Thomas 1988-5-25 24489 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  RSA132400  Juncus patens John H. Thomas 1959-7-8 8023 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  JROH4475  Juncus patens Kent E. Holsinger 1979-12-18 83 San Mateo Jasper Ridge Biological Preserve, Stanford University. E side of Searsville Lake, S side of big bay. Comment
  CAS-BOT-BC210058  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9259 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC227614  Juncus phaeocephalus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  JROH4507  Juncus xiphioides John H. Thomas 1973-4-14 16568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4519  Juncus xiphioides John Hunter Thomas 1981-4-29 20513 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289989  Juncus xiphioides Lyman Benson 1937-7-25 8474 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UCD85703  Koeleria macrantha A. A. Beetle 1942-6-11 3594 San Mateo 2 miles north of South San Francisco. Comment
  POM290111  Lactuca saligna Lyman Benson 1932-8-15 4050 San Mateo Menlo Park. 30 Comment
  CAS-BOT-BC340705  Lactuca virosa Walter Knight; Irja Knight 1963-9-18 s.n. San Mateo San Bruno Mountain Comment
  JROH960  Lagophylla ramosissima John H. Thomas 1967-6-1 12968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53167  Lagophylla ramosissima C. F. Baker 1902-9-2 1554 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  JROH969  Lagophylla ramosissima Carol Zabel, Ann Lambrecht, John Rawlings 2004-8-25 0053 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2778  Lamium amplexicaule H. J. Dengler 1975-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road below Searsville Dam Comment
  SD99497  Lamium amplexicaule Ira L. Wiggins 1971-4-27 21108 San Mateo Menolo Park, Vacant Lot Sw corner of Woodland Ave and Pope S. Comment
  JROH2782  Lamium purpureum Toni Corelli 2010-4-28 358 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of brick pathway from visitors parking lot to field station 120 Comment
  UCR121559  Lapsana communis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 A San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC339059  Lasthenia californica H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC346776  Lasthenia californica John H. Thomas 1955-5-6 5002 San Mateo San Mateo; Jasper Ridge about 3.5 miles southwest of Stanford University. Comment
  CHSC24835  Lasthenia californica B. A. Rosene 1976-4-18 2 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  CHSC276  Lasthenia californica J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CAS-BOT-BC339062  Lasthenia californica W. R. Dudley 1900-3-17 s.n. San Mateo Above Seal Cove Comment
  CAS-BOT-BC339083  Lasthenia californica W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae Comment
  CAS-BOT-BC339088  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  JROH977  Lasthenia californica subsp. californica John Hunter Thomas 1981-4-23 20482 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537021  Lasthenia californica subsp. californica Gordon H. True Jr. 1936-6-7 483 San Mateo top of ocean bluff at cove 2 mi. s Pescadero 15 Comment
  CAS-BOT-BC355543  Lasthenia glabrata var. glabrata David D. Keck 1932-4-29 1452 San Mateo Redwood City Comment
  CAS-BOT-BC355548  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  CAS-BOT-BC368184  Lasthenia minor John H. Thomas 1967-5-7 12834 San Mateo Pigeon Point. Altitude about sea level. Near Lighthouse. Comment
  CAS-BOT-BC368188  Lasthenia minor Kenton L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek, on bluff between Hwy. 1 and the ocean; around parking area Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  RSA158048  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  CDA27138  Lathyrus sphaericus Wm. Davis 1969-5-29 San Mateo Peters & Wilson Nursery, Millbrae. 0 Comment
  UCD106475  Lathyrus vestitus A. A. Heller 1907-4-20 8454 San Mateo San Bruno Hills. 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
  CAS-BOT-BC323155  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323180  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  POM298210  Layia chrysanthemoides D. D. Keck 1932-5-6 1488 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  UC89182  Layia gaillardioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  CAS-BOT-BC321073  Layia gaillardioides Josephine D. Randall 1907-7-28 89 San Mateo Black Mt. Road near Iverson's. Comment
  CAS-BOT-BC321090  Layia gaillardioides James I. McMurphy 1909-5-26 s.n. San Mateo Above La Honda Comment
  CAS-BOT-BC327468  Layia hieracioides John H. Thomas 1950-5-14 1871 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  JROH988  Layia hieracioides John Hunter Thomas 1980-5-8 19945 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195579  Layia hieracioides John H. Thomas 1966-4-22 11568 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC327360  Layia hieracioides David D. Keck 1932-5-11 1760 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains 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
  CAS-BOT-BC327464  Layia hieracioides John Thomas Howell 1944-6-11 19594 San Mateo 1.5 miles N of Felton Comment
  CAS-BOT-BC327470  Layia hieracioides John H. Thomas 1967-5-7 12825 San Mateo Sunset Beach State Park, about 4.5 miles SW of Watsonville. Comment
  POM267958  Layia hieracioides Jens Clausen 1941-7-1 1868 San Mateo Base of Montara Mountain, near Montara. 91 Comment
  POM298308  Layia hieracioides D. D. Keck, Wm Hiesey 1940-6-1 5166 San Mateo Skyline Blvd. opposite N end of Lake San Andreas. 137 Comment
  JROH1002  Layia platyglossa John Hunter Thomas 1981-5-8 20560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
Read comments
Feb 14 2014
  JROH993  Layia platyglossa John H. Thomas 1966-4-12 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18707  Layia platyglossa Schulte, John 1963-4-28 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-BC382080  Layia platyglossa Le Roy Abrams 1901-5-5 1565 San Mateo Woodside 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
  SEINET5712167  Layia platyglossa R. E. Dengler 1960-1 11 San Mateo Jasper Ridge, Stanford Biological Reserve.; Stanford Biological Reserve 191 Comment
  CAS-BOT-BC527273  Lemna minuta Roxana S. Ferris 1921-3-20 2114 a San Mateo Alpine Creek Road near juncture with Pescadero Road Comment
  CAS-BOT-BC221525  Lepechinia calycina Daniel Cohen 1953-6-5 111 San Mateo Los Trancos Woods Comment
  JROH2790  Lepechinia calycina John H. Thomas 1971-5-30 15970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. Comment
  UC76164  Lepechinia calycina Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  UCD115355  Lepidium didymum Malcolm A. Nobs; S. Galen Smith 1949-8-26 1594 San Mateo At the mouth of Pescadero Creek. Comment
  JROH1542  Lepidium nitidum John H. Thomas 1967-6-1 12953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1548  Lepidium nitidum John H. Thomas 1977-4-8 18521 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1550  Lepidium nitidum John Hunter Thomas 1982-1-3 20793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10674  Lepidium nitidum Mrs. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  CAS-BOT-BC12782  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH5597  Lepidium strictum John Rawlings 2011-4-24 1086 San Mateo Jasper Ridge Biological Preserve, Stanford University; parking area for Ranger Bath on Rd. L. 108 Comment
  CAS-BOT-BC226606  Leptosiphon ambiguus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  POM65849  Leptosiphon ambiguus C. F. Baker 1902-5-4 751 San Mateo Woodside. Comment
  POM65851  Leptosiphon ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside. Comment
  RSA10321  Leptosiphon androsaceus H. A. Barker 1926-4-25 547 San Mateo Kings Mt. Comment
  RSA18460  Leptosiphon androsaceus C. B. Wolf 1927-6-29 547 -A San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  JROH5691  Leptosiphon bicolor John Rawlings 2015-4-7 1454 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  UC106861 Image available Leptosiphon croceus Alice Eastwood 1901-5-10 San Mateo Blenheim Comment
  CAS-BOT-BC226730  Leptosiphon latisectus W. R. Dudley 1900-4-4 s.n. San Mateo Hills west of San Bruno Station Comment
  SD38816  Leptosiphon liniflorus Marie Cummings 1933-5-23 3718 San Mateo Spring Valley Comment
  UC964718  Leptosiphon parviflorus Herbert L. Mason 1935-5-21 8315 San Mateo Pebble Beach Pescadero Comment
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  CAS-BOT-BC324060  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo East of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Peninsula Comment
  POM197769  Lessingia arachnoidea John T. Howell 1926-10-9 2220 a San Mateo Near Crystal Springs Lake Comment
  JROH1008  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1027  Lessingia glandulifera var. glandulifera Carol Zabel 1989-9-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; near side of Road E, 100 yards down from intersection of Roads D, E, and F Comment
  CAS-BOT-BC324181  Lessingia hololeuca W. R. Dudley 1902-9-21 s.n. San Mateo Whipple Road, near Crystal Springs Lakes Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51399  Lessingia hololeuca L. S. Rose 1949-8-14 s.n. San Mateo Emerald Lake, W of Redwood City Comment
  JROH5964  Lessingia pectinata var. tenuipes Ann Lambrecht, Alice Cummings 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F opposite unmarked spur trail into chaparral 159 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
  CAS-BOT-BC342096  Leucanthemum vulgare W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills north of Jersey Farm W. of Baden Comment
  CAS-BOT-BC272289  Leymus X multiflorus J. H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  UCD64549  Leymus condensatus David L. Morgan 1955-7-29 San Mateo Lower San Mateo County: 1 mi. N of Santa Cruz county line, State Hwy 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-BC272186  Leymus triticoides Paul Reeberg 1988-10-31 s.n. San Mateo At mouth of ravine west of quarry, San Bruno Mountains Comment
  JEPS71202  Leymus triticoides William S. Cooper 1925-5-28 7 San Mateo Salada Comment
  CAS-BOT-BC436530  Ligusticum apiifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot Comment
  POM132667  Ligusticum apiifolium A. D. E. Elmer 1903-07 4966 San Mateo San Mateo Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  CAS-BOT-BC451668  Lilaea scilloides Dr. Kellogg No date on label s.n. San Mateo Near Searsville Comment
  SEINET11764872  Lilaea scilloides Unknown 1932-5-30 9189 San Mateo Lakes Los Francos Woods Comment
  LA22069  Lilium pardalinum Ira L. Wiggins; 1929-7-4 3771 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  CAS-BOT-BC389738  Lilium pardalinum J. Lovelle 1973-7-8 39 San Mateo Poscader [Pescadero] Cr. Comment
  JROH4689  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1989-6-17 24776 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  RSA409968  Limonium californicum L. S. Rose 1942-8-11 42225 San Mateo Brisbane. 1 Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4063  Limosella acaulis John Hunter Thomas 1982-11-6 21212 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  UCSB39984  Limosella acaulis Thomas, John 1982-8-15 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JROH4061  Limosella acaulis John Hunter Thomas 1982-8-15 21143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake Comment
  JEPS113040  Linanthus ambiguus Dean W. Taylor 1994-5-10 14264 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
  UC23367  Linanthus androsaceus J. Burtt Davy 1895-4-20 1072 San Mateo Crystal Springs Lake Comment
  JROH3184  Linanthus dichotomus Paul R. Hichborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC125987  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UCR122632  Linum bienne George K. Helmkamp, E. A. Helmkamp 2001-6-2 6764 San Mateo Central Coast, Purissima Road east of Half Moon Bay, 1.9 mi east of CA Hwy 1 168 Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  CDA28966  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .392 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CDA29905  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .408 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC36073  Lithocarpus densiflorus var. densiflorus George Oberlander 1949-8-20 334 San Mateo Southern boundary, Cahill Ridge Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA252256  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1974-12-28 1375 B San Mateo Santa Cruz Mtns. along Skyline Blvd (Hwy. 35) w of Redwood City, 2.8 mi n of King Mtn Rd. 640 Comment
  CAS-BOT-BC36065  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo La Honda, beyond Post Office and near Mill on Alpine road Comment
  JROH3886  Lithophragma affine John H. Thomas 1970-4-4 15543 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC436225  Lithophragma heterophyllum D. E. Breedlove 1974-5-13 36209 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  POM142569  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake. Comment
  JROH3899  Lithophragma heterophyllum John Hunter Thomas 1986-4-22 23973 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  RSA274343  Lithophragma heterophyllum Lyman Benson 1928-4-21 102 San Mateo Jaspar Ridge. Stanford University. Santa Cruz mtn range. San Francisquito Creek. 152 Comment
  UC570868  Lithophragma heterophyllum Herbert L. Mason 1927-4-23 3684 San Mateo along road between La Honda and Pescadero Creek; road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC60212  Lobularia maritima Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH729  Logfia gallica John H. Thomas 1961-4-29 9193 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH733  Logfia gallica John H. Thomas 1971-5-30 15961 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  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
  UCD66213  Lolium multiflorum Beecher Crampton 1962-6-11 6508 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road. Comment
  CAS-BOT-BC283223  Lolium multiflorum W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. On mountain side W of Tripps Store, Woodside Comment
  CAS-BOT-BC269128  Lolium perenne David D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  JROH5548  Lomatium caruifolium var. caruifolium John Rawlings 2013-4-2 1142 San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  UC21264  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  JROH256  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1958-5-10 7145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH262  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1969-6-4 15111 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH264  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1301125  Lomatium dasycarpum subsp. dasycarpum Helen K. Sharsmith 1963-2-16 5145 San Mateo summit San Bruno Mt.; San Francisco Bay Region, San Bruno Mt. 396 Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1073368  Lomatium macrocarpum George B. Rossbach 1955-3-12 370 San Mateo s.e. end Buriburi Ridge (n.w. side San Mateo Creek); San Mateo Creek 76 Comment
  UC1301122  Lomatium utriculatum Helen K. Sharsmith 1963-2-16 5133 San Mateo lower slopes San Bruno Mt. (above Daly City); San Francisco Bay Region, San Bruno Mt. 106 Comment
  UC306534  Lomatium utriculatum A. D. E. Elmer April, 1903 4926 San Mateo Crystal Springs Lake Comment
  POM132981  Lomatium vaginatum C. F. Baker 1902-4-8 2751 San Mateo San Andreas Lake Comment
  CAS-BOT-BC240583  Lonicera hispidula Ned Cahill 1974-5-13 263 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240584  Lonicera hispidula Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1668  Lonicera hispidula John Rawlings, Ann Lambrecht 2010-6-23 0933 San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  SFV3590  Lonicera hispidula K. A. Wilson 1961-6-24 1237 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  POM46727  Lonicera hispidula var. vacillans A. D. E. Elmer 1903-07 4596 San Mateo Lake San Andreas. Comment
  UC1125230  Lonicera hispidula var. vacillans N. K. Carlson 1935-7-5 61 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  CAS-BOT-BC241542  Lonicera involucrata var. ledebourii Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountains. Bitter Cherry Ravine about 60% of the way to the summit Comment
  CAS-BOT-BC243964  Lonicera involucrata var. ledebourii Roxana S. Ferris 1920-3-8 1762 San Mateo Crystal Springs - Half Moon Bay Road 426 Comment
  CAS-BOT-BC243968  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  CAS-BOT-BC243970  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  UC729847  Lonicera involucrata var. ledebourii Carl B. Wolf 1929-5-25 3733 San Mateo 2 mi from Pescadero; Alpine Creek Comment
  RSA107440  Lotus corniculatus L. S. Rose 1955-6-20 55107 San Mateo Pescadero 5 Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  RSA120411  Lotus scoparius var. scoparius W. R. Dudley 1893-07 s.n. San Mateo Near Searsville Lake. Comment
  SEINET12151372  Lotus subpinnatus Unknown 1932-1 9137 San Mateo Sky Line Drive Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  RSA120410  Lotus wrangelianus Ynez Henderson 1950-4-8 s.n. San Mateo San Francisquito Creek. Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  JROH2146  Lupinus affinis Toni Corelli 2010-3-29 362 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road E 106 Comment
  POM10874  Lupinus affinis C. F. Baker 1903-4-6 471 San Mateo Crystal Springs Lake. Comment
  SEINET5766884 Image available Lupinus affinis Dunn 1946-1 2601 San Mateo top of Ganyon Rd., 0.7 mi E of jct with Skyline Blvd., jct is 20.8 mi from bridge on N side of Boulder Creek; San Francisco Peninsula Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  POM77734  Lupinus affinis C. P. Smith 1921-4-9 3290 San Mateo San Mateo Canyon Comment
  CAS-BOT-BC195790  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48461 San Mateo Highway 5 - junction San Bruno Road 3, 0.8 miles south Comment
  CAS-BOT-BC196106  Lupinus albifrons var. collinus Javier Penalosa 1963-3-9 2685 San Mateo 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC196130  Lupinus albifrons var. collinus C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  CAS-BOT-BC196435  Lupinus arboreus Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In Colma Canyon Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  SEINET10488472  Lupinus arboreus Marcus E. Jones 1881-6-24 Jones s.n. San Mateo Comment
  SEINET5327651  Lupinus arboreus E. Crawford 1982-9-25 s.n. San Mateo On west side of Highway 1 at intersection with Bonny Doon Road. 12 Comment
  SEINET5628404 Image available Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo Near Lake Merced. Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  SD37885  Lupinus formosus var. formosus Edith A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  RSA134038  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine. Comment
  UC311176  Lupinus latifolius var. latifolius A. D. E. Elmer June, 1903 4593 San Mateo Woodside Comment
  SD37898  Lupinus latifolius var. latifolius Marie Cummings 1933-5-18 3664 San Mateo Los Altos Comment
  UC201917  Lupinus microcarpus var. densiflorus A. D. E. Elmer June, 1903 4413 San Mateo Lake San Andreas Comment
  CDA27504  Lupinus microcarpus var. microcarpus T. C. Fuller 1967-6-13 15946 San Mateo East above Crystal Springs Like, 0.2 mile east of Skyline Boulevard, road to San Mateo. 0 Comment
  JROH2126  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2143  Lupinus nanus Ann Lambrecht 2008-3-30 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Mine Trail Hill Comment
  SEINET11072117 Image available Lupinus nanus subsp. latifolius Carl Mankinen 1967-4-5 San Mateo State Highway 1, 1.8 miles northwest of Gazos Creek Comment
  SEINET10451625  Lupinus nanus subsp. nanus P. Wheeler 1965-5-8 Wheeler UMO 104190 San Mateo Sierra point. Comment
  SEINET10486130  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2591 San Mateo Collected in vacant lots on both sides of sloat blvd. Just west of riverton Drive in san francisco. Comment
  SEINET10837785  Lupinus succulentus var. succulentus Charles Piper Smith 1948-4-20 Smith 48111 San Mateo Hwy 1. San Pedro Point, south slope. Comment
  SEINET10936614  Lupinus succulentus var. succulentus Smith 1948-4-20 Smith 48109 San Mateo Hwy 1, san pedro point. North grade. Comment by d.b. Dunn: this is smith's Variety laynae, which i believe is depauperate due to the marine exposure. Comment
  SEINET10489108  Lupinus variicolor Smith 1948-4-23 Smith 48139 San Mateo Hwy 1, montara, government property. Comment
  JROH5679  Luzula comosa var. comosa John Rawlings 2015-3-3 1315 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC210033  Luzula subsessilis Peter Rubtzoff 1976-3-28 8450 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
  CAS-BOT-BC441373  Luzula subsessilis Ira L. Wiggins 1928-4-14 2907 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC441374  Luzula subsessilis R. E. Frenkel 1964-5-22 505 San Mateo San Francisco Water District, 0.3 mile N of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  JROH2952  Lythrum hyssopifolia John Hunter Thomas 1981-7-12 20688 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. 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
  CAS-BOT-BC343916  Madia elegans Rosenbaum 1916-9-30 s.n. San Mateo Near San Mateo Co. Almshouse Comment
  CAS-BOT-BC344490  Madia exigua Ned Cahill 1974-4-29 211 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA124756  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  JROH1066  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33375  Madia gracilis A. D. E. Elmer -Apr-1901 San Mateo Stanford University Comment
  CAS-BOT-BC343333  Madia gracilis David D. Keck 1932-4-29 1455 San Mateo Mills Field Airport, Bayshore Highway Comment
  RSA6299  Madia gracilis D. D. Keck 1932-5-6 1485 San Mateo Hills just west of Millbrae Highlands 120 Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC353474  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  RSA11166  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo South of Pebble Beach near Pescadero Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CAS-BOT-BC345108  Madia sativa W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Colma Comment
  CAS-BOT-BC345117  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 Comment
  CAS-BOT-BC345131  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CHSC57554  Maianthemum racemosum Diane Mastalir 1988-3-27 2 San Mateo 6.7 mi s of jct Hwy 1 and Hwy 92, 0.3 mi e on Pescadero Rd. 12 Comment
  JROH4696  Maianthemum racemosum John H. Thomas 1979-4-8 19443 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB33561  Maianthemum racemosum Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road; 0.6 miles from Highway 1; Near Butano State Park; Foothills of Santa Cruz Mountains 76 Comment
  CAS-BOT-BC512108  Maianthemum racemosum subsp. amplexicaule Fred Hemphill 1973-4-8 720 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC512104  Maianthemum racemosum subsp. amplexicaule Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CAS-BOT-BC512111  Maianthemum racemosum subsp. amplexicaule John H. Thomas 1967-5-7 12835 San Mateo Near intersection of Bean Hollow Rd. and Pescadero Rd., about 1/2 mile westward from Pescadero. 91 Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514171  Maianthemum stellatum Elizabeth McClintock 1965-3-28 s. n. San Mateo In Trillium Gulch, San Bruno Mountain Comment
  SD39132  Maianthemum stellatum Edith A. Purer 1933-4-11 3634 San Mateo Between Pescadero and Pegeon Point. Comment
  JROH2958  Malacothamnus fasciculatus John H. Thomas 1962-6-6 9906 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC206319  Malacothamnus fremontii J. W. Congdon 1897-7-27 s.n. San Mateo Belmont Comment
  RSA141087  Malvella leprosa John H. Thomas 1960-6-25 8787 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  HSC7023  Marah fabacea P. A. Murphy 1965-4-16 10 San Mateo About 5 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  SEINET5560624  Marah fabacea H. S. Gentry 1931-1 13 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  SD39366  Marah oregana Edith A. Purer 1933-4-25 3656 San Mateo King's Mountain Road Comment
  RSA92812  Marah oregana P. H. Raven 1950-4-16 1786 San Mateo Colma Canyon, San Bruno Mts. 122 Comment
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  CAS-BOT-BC348191  Matricaria discoidea John H. Thomas 1960-6-25 8791 A 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-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  JROH2159  Medicago lupulina Ann Lambrecht 2005-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C just south of low-flow crossing, west side of road Comment
  SJSU4256  Medicago lupulina E. J. Dalton 1962-10-7 39 San Mateo San Gregorio Cr 2 mi SW of La Honda Comment
  JROH2167  Medicago polymorpha John H. Thomas 1973-4-14 16573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99483  Medicago polymorpha Ira L. Wiggins 1975-4-12 22139 San Mateo Northeast side of Southern Pacific right-of-way, between San Francisquito Creek and Ravenswood Avenue, Menlo Park. Comment
  CAS-BOT-BC269470  Melica californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  POM319880  Melica californica Barbara Shervanick 1973-4-1 795 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  POM296604  Melica imperfecta Lyman Benson 1935-5-5 6537 San Mateo Lake Searsville 152 Comment
  RSA135801  Melica imperfecta W. R. Dudley 1899-05 s.n. San Mateo Road from San Andreas Res. to Pilarcitos. Santa Cruz Mountain Peninsula. Comment
  SD40028  Melilotus indicus Edith A. Purer 1933-7-27 5368 San Mateo Pigeon Point Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  RSA582110  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  UCR177714  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  SEINET12273456  Micromeria chamissonis Unknown 22 May 1?32 6169 San Mateo Los Francos Woods Comment
  CAS-BOT-BC348572  Micropus californicus var. californicus Ned Cahill 1974-4-18 134 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1122  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1130  Micropus californicus var. californicus John Hunter Thomas 1986-5-6 24003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348720  Microseris bigelovii John H. Thomas 1966-4-30 11591 San Mateo Bluffs at San Gregorio Beach Comment
  JROH1142  Microseris douglasii subsp. douglasii John H. Thomas 1966-4-21 11562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87985  Microseris douglasii subsp. tenella L. R. Abrams 1902-5-4 2425 San Mateo Woodside- Serpentine Hills Comment
  CAS-BOT-BC349142  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-3-28 431 San Mateo Bayshore Hwy. 1/2 mi. s. of junction with Harbor Blvd., Redwood City Comment
  RSA0001425  Microseris leucocarpha C. F. Baker 1902-5-4 757 San Mateo Woodside. Comment
  RSA119749  Microsteris gracilis subsp. humilis James I. McMurphy 1907-4-27 s.n. San Mateo Kings Mountains Comment
  SEINET8208860  Mimulus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  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
  RSA130970  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  JROH4080  Mimulus cardinalis Carol Zabel 1989-8-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, 100 feet upstream from low-flow crossing Comment
  UC26963  Mimulus grandis J. Burtt Davy Jun 21 1893-Jun 23 1893 1138 San Mateo Pilarcitos Lake and Canyon Comment
  JROH4092  Mimulus guttatus John Hunter Thomas 1981-4-23 20472 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164332  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  RSA788375  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains: 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  CAS-BOT-BC174578  Minuartia californica Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC214065  Monardella villosa Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC Tower, San Bruno Mountain Comment
  CAS-BOT-BC214087  Monardella villosa Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC214174  Monardella villosa L. R. Abrams 1920-6-1 7496 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SEINET10582384  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 5 San Mateo 0.4 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  SEINET10582385  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 1 San Mateo 0.2 miles down Bean Hollow Road south from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  SEINET10862297  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 3 San Mateo 0.37 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JEPS121451  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 127 San Mateo Crystal Springs Reservoir Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0022814  Monardella villosa subsp. villosa Carl B. Wolf 1927-6-21 426 San Mateo East slope of Kings Mt. Comment
  CAS-BOT-BC327789  Monolopia gracilens Otto Holm 1930-5-9 s.n. San Mateo Berenda Farm, near Redwood City Comment
  CAS-BOT-BC349587  Monolopia major W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine of San Mateo Creek Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard Comment
  CAS-BOT-BC445194  Montia parvifolia A. D. E. Elmer 1903-5-1 4577 San Mateo Iverson's Place Comment
  JROH1397  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  UCD164185  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCSB21182  Myosotis latifolia Simpson, C. 1967-3-21 San Mateo Butano Creek; 2.6 miles east of junction of Cloverdale Rd. and Canon Road 45 Comment
  JEPS85566  Myrica californica Craig Dremann 1986-8-30 327 San Mateo near Pescadero (Bear Hollow Rd., 1/4 mi. n. of Hwy. 1 intersection) Comment
Read comments
Sep 4 2011
  CAS-BOT-BC260231  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  RSA187301  Nassella pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC60477  Nasturtium officinale Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2. Comment
  JROH1574  Nasturtium officinale John Hunter Thomas 1987-4-7 24177 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH1575  Nasturtium officinale Carol Zabel 1989-8-11 28 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near low-flow crossing at Road C Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  UC1124144  Navarretia squarrosa G. E. Sindel 1935-7-25 310 San Mateo Lagoon, mouth of Pescadero Creek Santa Cruz Quad., Pescadero Creek 7 Comment
  UC570261  Navarretia squarrosa N. K. Carlson 1935-6-29 106 San Mateo 1 mi s Pescadero; Santa Cruz Quad. 91 Comment
  UCD48691  Navarretia squarrosa J. Skoss 1948-7-25 46 San Mateo San Vicente Canyon near Montara, San Mateo County, California. Comment
  JROH3319  Navarretia viscidula H. J. Dengler 1973-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Above south-east edge of Searsville Lake, ca. 100 m. Growing in small 4' dia. patch by trail, about 15' outside oak (Q. agrifolia) cover. Comment
  RSA17967  Navarretia viscidula C. B. Wolf 1927-8-13 712 San Mateo Summit La Honda Grade, Santa Cruz Mountains Comment
  JROH2737  Nemophila menziesii var. menziesii D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  CAS-BOT-BC219478  Nemophila parviflora Ira L. Wiggins 1928-4-14 2901 San Mateo Alpine Creek Road Comment
  CDA986  Nemophila parviflora D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .368 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  JROH2745  Nemophila parviflora var. parviflora John H. Thomas 1972-4-1 16049 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5550  Nemophila parviflora var. parviflora John Rawlings 2013-4-23 1141 San Mateo Jasper Ridge Biological Preserve, Stanford University; above creek upstream from bridge on Trail 11 139 Comment
  JROH5953  Nuttallanthus texanus D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge area, rocky point Comment
  CAS-BOT-BC140424  Oemleria cerasiformis Elmer I. Applegate 1895-3-9 152 San Mateo Woodside Comment
  CAS-BOT-BC140432  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo About 10 miles northwest of Palo Alto Comment
  CAS-BOT-BC140441  Oemleria cerasiformis E. G. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  CAS-BOT-BC140447  Oemleria cerasiformis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  JROH3709  Oemleria cerasiformis John H. Thomas 1975-5-2 17852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11915946  Oemleria cerasiformis E. G. Dudley 1904-1 42 San Mateo Portola Valley, Santa Cruz Mts Comment
  JROH283  Oenanthe sarmentosa James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  SEINET12189806  Oenothera elata Unknown 1933-1 10375 San Mateo Boden Station, South san Francisco Comment
  RSA127724  Oenothera elata subsp. hookeri John H. Thomas 1959-7-8 8022 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  UC1122258  Oenothera elata subsp. hookeri N. K. Carlson 1935-7-1 111 San Mateo Little Butano and Road Santa Cruz Quadrangle Comment
  RSA648323  Oenothera ovata J. Doty 1969-3-27 606 San Mateo San Gregorio State Beach Park. 15 Comment
  POM59435  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City, on slopes facing the ocean. Comment
  JROH5717  Orobanche fasciculata Herb Dengler 1963-5-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks along path to redwoods Comment
  CAS-BOT-BC500318  Orobanche uniflora subsp. occidentalis W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula: Rocks above San Mateo Creek Comment
  RSA0087773  Orobanche uniflora subsp. occidentalis C. F. Baker 1903-4-8 1927 San Mateo Crystal Springs Lake. Comment
  RSA401985B  Orthocarpus densiflorus Francis W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  RSA184905  Orthocarpus erianthus var. roseus L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 122 Comment
Read comments
Mar 28 2016
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  RSA516520  Orthocarpus floribundus W. L. Jepson 1919-4-19 8231 San Mateo S San Francisco. Comment
  CAS-BOT-BC173631  Orthocarpus pusillus Peter Rubtzoff 1977-4-14 8941 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH298  Osmorhiza berteroi John Hunter Thomas 1986-5-1 23998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176828  Osmorhiza berteroi John H. Thomas 1961-5-5 9213 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JROH302  Osmorhiza berteroi John Hunter Thomas 1992-4-30 25174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC1970  Osmorhiza chilensis A. Goekler 1929-5-11 San Mateo Moss Beach. Comment
  CHSC118350  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
  JROH3092  Oxalis oregana M. N. Paulson 1915-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  SBBG51534  Oxalis oregana J. Doty 1969-3-26 602 San Mateo St Hwy 34, 6 mi N of its jct with St Hwy 38, San Francisco Peninsula Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  CAS-BOT-BC318251  Packera breweri W. R. Dudley 1893-5-3 s.n. San Mateo Foothills near Stanford University. Comment
  CAS-BOT-BC253971  Parapholis incurva J. H. Thomas 1962-5-12 9859 San Mateo Franklin Point Comment
  UCD88635  Parapholis incurva Beecher Crampton 1962-6-11 6512 San Mateo Rockaway Beach, a suburb of Pacifica. Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 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
  JROH4098  Pedicularis densiflora Robert Robertson 1954-4-23 102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22074  Pedicularis densiflora L. S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake. 152 Comment
  JROH4107  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  POM226859  Pedicularis densiflora L. R. Abrams 1914-3-1 5058 San Mateo Kings Mountain Road, Santa Cruz Mtns. 152 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
  CAS-BOT-BC207019  Pelargonium vitifolium Charles Piper Smith 1950-5-15 50140 San Mateo Pescadero Creek Bridge - Highway 1, 3.9 miles south Comment
  CAS-BOT-BC69253  Pellaea andromedifolia George Oberlander 1949-5-24 s.n. San Mateo San Andreas Valley, San Francisco Watershed Reserve Comment
  JROH97  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH98  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063604  Pellaea andromedifolia R. C. Wilson 1935-8-2 244 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC69251  Pellaea andromedifolia John H. Thomas 1975-4-17 s.n. San Mateo Yerba Buena Nursery, near Skyline Blvd, on Isenberg Ranch Comment
  JROH104  Pellaea mucronata var. mucronata W. R. Dudley 1895-2-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocks near Searsville Reservoir Comment
  JROH5876  Pentachaeta alsinoides John Hunter Thomas 1989-5-5 24655 San Mateo Jasper Ridge Biological Preserve, Stanford University. [Along Rd. F] 166 Comment
  UC88019  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont 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-BC77004  Pentagramma triangularis subsp. triangularis Phillip Wheeler 1966-12-30 s.n. San Mateo San Bruno Mountains - Harold Road, Brisbane 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
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA430457  Perideridia kelloggii Lyman Benson 1974-02 8485 San Mateo La Honda Road 244 Comment
  JROH3245  Persicaria amphibia John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge. Comment
  JROH3257  Persicaria amphibia John Hunter Thomas 1992-7-24 25386 San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat ramp. Comment
  JROH3269  Persicaria lapathifolia Roxana S. Ferris 1924-10-6 4094 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  CAS-BOT-BC330312  Petasites frigidus var. palmatus W. R. Dudley 1894-3-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By La Honda Creek, Redwoods above hotel Comment
  CDA8457  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  CDA8458  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  JEPS37161  Petasites frigidus var. palmatus James G. Daly 232 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  RSA15277  Petasites palmatus C. B. Wolf 1927-4-3 243 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  POM65447  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Lake. Comment
  UC1084386  Phacelia californica G. Thomas Robbins 1937-4-11 92 San Mateo in field along road to Woodside above San Mateo Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  UC306570  Phacelia distans A. D. E. Elmer April 1903 4862 San Mateo San Pedro Comment
  POM128436  Phacelia divaricata L. R. Abrams 1902-4-13 2324 San Mateo Crystal Spring. Comment
  UC24429  Phacelia malvifolia J. Burtt Davy 1893-6-22 1139 San Mateo Pilarcitos Comment
  JEPS67917  Phalaris L. R. Heckard and J. H. Thomas 1972-4-16 2902 San Mateo along e side Upper Crystal Springs Reservoir ((below State Highway interchange)); along e side Upper Crystal Springs Reservoir Comment
  JROH5375  Phalaris aquatica W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just to right before causeway at Whiskey Hill, on San Francisquito Creek. Comment
  SD227705  Phalaris aquatica G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek 106 Comment
  CAS-BOT-BC259002  Phalaris californica Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry #2 Comment
  SEINET4692076  Phalaris californica A. D. E. Elmer 1903-1 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC250640  Phalaris minor J. H. Thomas 1962-5-12 9861 San Mateo Franklin Point Comment
  UCR123138  Phalaris minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6773 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
  RSA681616  Philadelphus lewisii Deb Annuschka 1989-6-13 239 San Mateo YBN [Yerba Buena Nursery] next to lath house. Comment
  JROH5384  Phleum pratense John Rawlings 2009-6-3 1024 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek 82 Comment
  UC52847  Phlox gracilis J. Burtt Davy Jun 21 1893-Jun 23 1893 1044 San Mateo Pilarcitos Lake and Canyon Comment
  JROH4290  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UCD18545  Phyla nodiflora Roman Gankin 1950-7-8 13 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  UCD138387  Phyllospadix torreyi R. V. Parker 1953-4-15 s.n. San Mateo Moss Beach. Comment
  RSA176725  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET3819247 Image available Physocarpus capitatus Lewis S. Rose 1939-5-5 39093 San Mateo San Mateo Canyon. 46 Comment
  SEINET10542162  Physocarpus opulifolius Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  JROH119  Pinus radiata John H. Thomas 1977-4-15 18531 San Mateo Jasper Ridge Biological Preserve, Stanford University 118 Comment
  UCSB23893  Pinus radiata Haller, John 1967-10-7 San Mateo Coastways Ranch near Ano Nuevo Creek, 0.5 miles inland from Ano Nuevo Bay, about 20 miles by road northwest of Santa Cruz 30 Comment
  CAS-BOT-BC158326  Piperia Peter Rubtzoff; Randall Morgan 1987-8-28 9847 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC136529  Piperia candida John H. Thomas 1961-6-20 9551 San Mateo Field redacted by CAS, contact the data manager for more information 152 Comment
  CAS-BOT-BC137316  Piperia elegans John H. Thomas 1961-8-27 9704 San Mateo Field redacted by CAS, contact the data manager for more information 396 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
  UCSC004667  Piperia michaelii Randall Morgan 1992-1 1 .99E+11 San Mateo Pacifica, Rockaway Beach Comment
  JEPS125908  Pittosporum crassifolium D. W. Taylor 2002-3-30 17961 San Mateo Sea bluff on S edge outlet of Martini Creek, Montara State Beach Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22135  Plagiobothrys chorisianus Alice Eastwood, Howell 1938-6-26 s.n. San Mateo Pigeon Point. Comment
  SD99464  Plagiobothrys chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain. Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  CAS-BOT-BC228161  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1908-6-19 s.n. San Mateo The Santa Cruz Mountain Peninsula. W of Jersey Farm Dairy Comment
  JROH1419  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1983-5-3 21878 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
  SEINET7076093  Plagiobothrys chorisianus var. hickmanii 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
  JROH1422  Plagiobothrys nothofulvus John H. Thomas 1968-4-19 14291 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1428  Plagiobothrys nothofulvus John H. Thomas 1975-4-18 17785 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1430  Plagiobothrys nothofulvus John Hunter Thomas 1988-4-7 24378 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA8609  Plagiobothrys nothofulvus I. L. Wiggins 1933-4-17 6651 San Mateo Emerald lake Hills 2 miles W of Redwood City. Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  UC24576  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1143 San Mateo Pilarcitos Lake and Canyon Pilarcitos Canyon, Pilarcitos Lake Comment
  OBI58721  Plantago erecta Lewis S. Rose 1966-5-2 66033 San Mateo Emerald lake, W of Redwood City 91 Comment
  UC2049867  Plantago lanceolata H. W. Johansen 1955-4-23 81 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  UCSC007768  Plantago lanceolata Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  UC1192029  Plantago subnuda Malcolm A. Nobs and S. Galen Smith 1949-8-26 1583 San Mateo about 1 mi s Half Moon Bay Comment
  UCD164004  Plantago subnuda Peter Rubtzoff 1977-11-24 9142 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon near upper rim. Comment
  RSA18360  Platanthera leucostachys Carl B. Wolf 1929-5-25 3728 San Mateo Pebble Beach, S of Pescadero. Comment
  RSA445724  Platystemon californicus var. californicus L. S. Rose 1937-4-24 37230 San Mateo Emerald Lake, west of Redwood City 107 Comment
  POM204134  Platystemon californicus var. californicus L. S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH4245  Plectritis congesta subsp. brachystemon John Hunter Thomas 1981-4-23 20490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC27137  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JROH5951  Plectritis macrocera John Rawlings 2017-4-9 2017 San Mateo Jasper Ridge Biological Preserve, Stanford University; path to Global Change site south of Field Station visitor parking lot. 117 Comment
  CAS-BOT-BC260964  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-6-1 4848 San Mateo Milbrae Comment
  POM284984  Pleuropogon californicus var. californicus Lyman Benson 1930-4-26 2060 San Mateo Stanford University. 122 Comment
  UCD92189  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  JROH5397  Poa annua John H. Thomas 1967-5-12 12873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5407  Poa annua John Hunter Thomas 1985-4-10 23514 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Whiskey Hill gate. Comment
  SJSU7645  Poa kelloggii T. J. Sammis 1974-5-16 San Mateo redwood forest between Pescadero Road & Pescadero Creek c. 1 mi W of Loma Mar Comment
  SEINET10602237  Poa nevadensis Edwin B. Copel 1903-4-20 Copeland 1920 San Mateo San Andreas Lake, Ca. Tufts about hill tops. Comment
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  CAS-BOT-BC237725  Poa secunda subsp. juncifolia Dr. E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  CAS-BOT-BC243115  Poa secunda subsp. secunda Ned Cahill 1974-4-29 186 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC243127  Poa secunda subsp. secunda George Thomas Oberlander 1950-4-16 653 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5422  Poa secunda subsp. secunda D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky north slope, Searsville Ridge. Comment
  UC157041  Poa secunda subsp. secunda E. B. Copeland 1903-4-20 1920 San Mateo San Andreas Lake Comment
  UCD164387  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244249  Poa unilateralis David D. Keck 1932-5-6 1477 San Mateo Hillsides above Millbrae Highlands Comment
  CAS-BOT-BC244250  Poa unilateralis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Peach, near Pescadero 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
  JROH2857  Pogogyne serpylloides D. E. Breedlove 1971-5-5 19325 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Fancisquito Creek, 500 yards below Searsville Dam Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH5584  Polygala californica John Rawlings 2013-5-28 1190 San Mateo Jasper Ridge Biological Preserve, Stanford University; in the vicinity of an abandoned camper shell near a small drainage on north side of main ridge 100 Comment
  UC1192322  Polygonum amphibium var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1603 San Mateo along Hwy 1 0,.6 mi n Pigeon Point Comment
  POM280341  Polygonum arenastrum Lyman Benson 1936-9-4 7990 San Mateo Menlo Park, San Francisco Bay. 30 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
  POM280424  Polygonum coccineum Lyman Benson 1932-7-11 3930 San Mateo Stanford University, Lake border, Santa Cruz Creek, San Francisquito. 152 Comment
  RSA14508  Polygonum convolvulus I. L. Wiggins 1935-8-24 8159 San Mateo Roadside 2 miles E of Half Moon Bay. Comment
  POM192783  Polygonum lapathifolium W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  UC399453  Polypodium californicum Carlotta C. Hall May 1918 San Mateo Farollone City Comment
  UCSB17938  Polypodium californicum Schulte, John 1963-4-14 San Mateo NE Jasper Ridge, 3 mi SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 152 Comment
  CAS-BOT-BC76807  Polypodium glycyrrhiza Rachael A. Tickner 1974-1-1 s.n. San Mateo Butano Sandstone Bluffs, Butano State Park, southern part of county. Comment
  JROH5428  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5430  Polypogon interruptus John H. Thomas 1962-7-15 9921 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  CAS-BOT-BC237345  Polypogon monspeliensis Ira L. Wiggins 1973-6-24 22019 San Mateo In bed of San Francisquito Creek, 50-60 m upstream from Pope Street Bridge, along boundary between San Mateo and Santa Clara counties Comment
  CAS-BOT-BC237354  Polypogon monspeliensis C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's Canyon Comment
  JROH5442  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road near Searsville Lake. Comment
  SJSU15937  Polypogon monspeliensis John Rawlings, Ken Hickman 2016-5-26 1808 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
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  CAS-BOT-BC237358  Polypogon monspeliensis V. F. Hesse No date on label 3203 San Mateo Whitehouse Creek road, near coast 30 Comment
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
  SEINET10665573 Image available Polystichum dudleyi William R. Dudley 1903-5-2 Dudley s.n. San Mateo Near bridge. Peters Creek. Santa Cruz Mts. Comment
  CAS-BOT-BC76604  Polystichum munitum Ira L. Wiggins 1928-4-14 2921 San Mateo Alpine Creek Road Comment
  UC150382  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo w side King's Mt. Comment
  RSA0016813  Polystichum munitum B. J. Hoshizaki 1991-10-4 91 -4 [A] San Mateo Along road between Yerba Buena Nursery and Langly Hill Quarry. Woodside Ranch, 19500 Skyline Blvd., Redwood City. Comment
  RSA120192  Polystichum munitum S. S. Tillett, I. Sternback 1956-6-25 549 San Mateo Along road into Portola State Park 396 Comment
  SEINET11714701  Polystichum munitum Unknown 1932-1 8922 San Mateo Kings Mt Comment
  UC652560  Potamogeton gramineus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453734  Potamogeton illinoensis George Oberlander 1949-8-20 386 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  UC813943  Potamogeton nodosus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC454001  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir. Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola Comment
  CAS-BOT-BC143408  Potentilla Elizabeth McClintock 1974-11-8 s.n. San Mateo On north side of Guadalupe Parkway Comment
  CAS-BOT-BC141929  Potentilla anserina subsp. pacifica Elizabeth McClintock; Carlyn Halde; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon - San Bruno Mountains Comment
  UC555624  Potentilla anserina subsp. pacifica Herbert L. Mason 1927-4-24 3701 San Mateo mouth of San Gregorio Creek Comment
  JROH4668  Prosartes hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  CAS-BOT-BC516344  Prosartes hookeri Le Roy Abrams 1902-5-20 2467 San Mateo King's Mountain Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings Mountain Comment
  SEINET8502087 Image available Prosartes smithii L. M. Henry, M. E. Springer 1946-7-21 372 San Mateo La Honda Comment
  SEINET8907180  Prunella vulgaris subsp. lanceolata A. D. 1974-1 San Mateo Hwy. 35; ca. 4 mi. from Jct 35 & 92 610 Comment
  SFV3190  Prunella vulgaris subsp. vulgaris K. A. Wilson 1961-6-24 1238 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  CAS-BOT-BC158176  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  POM140371  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC154503  Prunus ilicifolia Phillip Wheeler 1965-6-7 s.n. San Mateo Between Owls Canyon and Buckeye Canyon Comment
  CAS-BOT-BC154649  Prunus subcordata E. A. McGregor 1909-4-20 s.n. San Mateo Los Trancos Road (near bridge at Tilt - Villa) Comment
  JROH753  Pseudognaphalium californicum John H. Thomas 1958-5-10 7157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356862  Pseudognaphalium californicum Barrett Anderson; Peter Rubtzoff 1988-4-22 3658 San Mateo San Bruno Mountain. Saddle area north of Guadalupe Canyon Parkway 275 Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC357119  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  JROH776  Pseudognaphalium luteoalbum John H. Thomas 1974-10-29 17649 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accomodate water from Corte Madera Cr. Comment
  CAS-BOT-BC357507  Pseudognaphalium ramosissimum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  UC1536874  Pseudognaphalium stramineum G. H. True Jr. 1936-6-7 489 San Mateo 2 mi s Pescadero 15 Comment
  CAS-BOT-BC361569  Pseudognaphalium stramineum George Oberlander 1949-7-30 327 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC85913  Pseudotsuga menziesii J. I. McMurphy 1906-3-9 47 San Mateo Santa Cruz Peninsula, Santa Cruz Mts., King's Mt. 640 Comment
  CAS-BOT-BC85915  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  RSA762816  Pseudotsuga menziesii Lyman Benson 1929-3-2 981 San Mateo Hill east of Lake Searsville. Comment
  CAS-BOT-BC85911  Pseudotsuga menziesii E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt., west slope 792 Comment
  JROH125  Pseudotsuga menziesii var. menziesii John H. Thomas 1970-1-1 15492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH130  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1986-4-22 23971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5334815  Pseudotsuga menziesii var. menziesii R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, San Mateo Memorial Park. Comment
  CAS-BOT-BC362027  Psilocarphus tenellus Le Roy Abrams 1902-5-20 2477 San Mateo Kings Mountain Road Comment
  JROH1185  Psilocarphus tenellus John Hunter Thomas 1978-4-25 19146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362021  Psilocarphus tenellus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Crocker Hills. Near Guadalupe Road Comment
  JROH3288  Pterostegia drymarioides John H. Thomas 1971-4-25 15787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA149177  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo Franklin Point. Comment
  UCSC003366  Puccinellia Randall Morgan 2001-5-20 3735 San Mateo San Gregorio State Beach, San Mateo County Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  JROH2539  Quercus X chasei Carol Zabel 2001-9-1 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  SFV17779  Quercus agrifolia E. W. Holm 1993-11-26 s. n. San Mateo Huddart Park, near Sequoia Picnic Area on east-facing slope. Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH5809  Quercus berberidifolia John Rawlings 2016-7-27 1910 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 15, 15 yards north of Rd F 175 Comment
  CAS-BOT-BC62304  Quercus chrysolepis Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain, Buckeye Canyon Comment
  JROH2467  Quercus chrysolepis H. J. Dengler 1973-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; gully which drains into Searsville Lake 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
  RSA169307  Quercus durata L. S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  CAS-BOT-BC105393  Quercus kelloggii Josephine D. Randall 1907-3-9 114 San Mateo Santa Cruz Mountain Peninsula, Searsville Road to Woodside Comment
  CAS-BOT-BC105398  Quercus kelloggii Ira L. Wiggins 1925-4-1 1664 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (S. sempervirens) belt. Comment
  RSA571671  Quercus kelloggii D. D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  UCD46659  Quercus kelloggii C. M. Belshaw 1936-1-25 1463 San Mateo Kings Mountain road, 4.5 miles west of Woodside, San Mateo County. South Coast Range. Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  JROH2521  Quercus lobata John H. Thomas 1977-4-28 18566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  CAS-BOT-BC134777  Quercus wislizeni Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC134789  Quercus wislizeni Josephine D. Randall 1907-4-27 s.n. San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  CDA29062  Quercus wislizeni D. G. Kelch 2009-6-9 9 .398 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM270261  Quercus wislizeni var. wislizeni Lyman Benson 1932-8-1 4028 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  CAS-BOT-BC362543  Rafinesquia californica Fred Hemphill 1973-5-6 782 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362544  Rafinesquia californica Fred Hemphill 1973-5-14 803 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362548  Rafinesquia californica Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  JROH1200  Rafinesquia californica John H. Thomas 1966-4-29 11587 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC9380  Ranunculus aquatilis var. capillaceus J. Burtt Davy Jun 21 1893-Jun 23 1893 1130 San Mateo Pilarcitos Lake and Canyon Comment
  JROH3475  Ranunculus californicus Toni Corelli 2005-4-13 284 San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Trail 10 178 Comment
  RSA399414  Ranunculus californicus L. S. Rose 1935-4-16 35097 San Mateo Emerald Lake, W of Redwood City Comment
  SD1764  Ranunculus californicus Ulysses S. Grant IV June 1925 San Mateo Near La Honda Comment
  UC277217  Ranunculus californicus H. M. Hall 1923-2-20 11844 a San Mateo Pigeon Point; 3.4 mi s of L.H., near the sea Comment
  CAS-BOT-BC389753  Ranunculus californicus J. Nieri 1953-2-14 s.n. San Mateo 2 miles west of Belmont Comment
  RSA119760  Ranunculus californicus I. L. Wiggins 1929-3-24 3381 San Mateo On road to Searville Lake, back of Stanford University. Comment
  UC750526  Ranunculus californicus Lewis S. Rose 1947-4-14 47094 San Mateo Skyline Blvd. e Sharps Park 152 Comment
  UCR136711  Ranunculus californicus var. californicus E. W. Rust 1907-3-28 79 San Mateo Santa Cruz Mountains, Alta Vista 183 Comment
  RSA0030883  Ranunculus californicus var. cuneatus Lyman Benson 1930-3-2 1947 San Mateo Moss Beach. 15 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
  JROH3484  Ranunculus hebecarpus John Hunter Thomas 1981-4-21 20457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  POM269867  Ranunculus lobbii Roxana S. Ferris 1918-3-31 s.n. San Mateo Mud Lakes, Coal Mine Ridge Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  JROH3497  Ranunculus muricatus John Hunter Thomas 1983-5-23 22238 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing Comment
  RSA10410  Ranunculus muricatus Carl B. Wolf 1927-6-15 2164 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  JEPS85712  Ranunculus pusillus L. R. Heckard and J. H. Thomas 1972-4-16 2890 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  UCD97311  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74337  Raphanus sativus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountains. Ridge above Brisbane. Comment
  JROH5871  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  JROH5873  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  POM283036  Rhamnus californica Lyman Benson 1934-7-29 6110 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  RSA7859  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1473 San Mateo 1/2 way up Kings Mt Comment
  CAS-BOT-BC389666  Rhododendron occidentale Wicksten 1975-6-19 233 San Mateo Unspecified Comment
  CAS-BOT-BC437973  Ribes W. R. Dudley 1903-5-2 s.n. San Mateo Along fence near Iverson's Pescadero Creek, near Santa Cruz Co. Comment
  CAS-BOT-BC437974  Ribes Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo; San Bruno Mountains Comment
  CAS-BOT-BC437978  Ribes Eric Walther 1920-5-30 s.n. San Mateo Woodside Comment
  CAS-BOT-BC92489  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  POM141969  Ribes californicum A. D. E. Elmer 1903-06 4787 San Mateo Lake San Andreas. Comment
  JROH2635  Ribes californicum var. californicum John H. Thomas 1958-2-15 6989 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173085  Ribes divaricatum var. pubiflorum Elmer I. Applegate 1895-3-9 188 San Mateo Woodside Comment
  CAS-BOT-BC173091  Ribes divaricatum var. pubiflorum George Oberlander 1949-4-9 49 San Mateo Pilarcitos Canyon Comment
  JROH2654  Ribes divaricatum var. pubiflorum John Hunter Thomas 1985-4-25 23555 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  UC311181  Ribes divaricatum var. pubiflorum A. D. E. Elmer May, 1903 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173476  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  RSA0021677  Ribes malvaceum G. Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC212830  Ribes menziesii George Oberlander 1950-3-11 495 San Mateo Pilarcitos Canyon Comment
  UC1127451  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  UC566015  Ribes menziesii G. E. Sindel 1935-8-13 330 San Mateo San Gregorio Creek Santa Cruz Quadrangle 91 Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  CAS-BOT-BC144603  Ribes sanguineum var. glutinosum J. H. Thomas 1955-3-18 4693 San Mateo About 6 milesup Tunitas Road from Ocean 335 Comment
  CAS-BOT-BC144608  Ribes sanguineum var. glutinosum David D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains, (3 miles north) 365 Comment
  CAS-BOT-BC144637  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-23 s.n. San Mateo Canada Creek, near La Honda Comment
  CAS-BOT-BC144642  Ribes sanguineum var. glutinosum John Thomas Howell 1924-2-23 268 San Mateo King Mountain Comment
  JROH2680  Ribes sanguineum var. glutinosum John Hunter Thomas 1981-4-5 20274 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC858477  Ribes sanguineum var. glutinosum E. G. Dudley 1904-3-3 San Mateo Portola Road, bridge Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC144611  Ribes sanguineum var. glutinosum W. R. Dudley 1894-7-29 s.n. San Mateo Hill just beyond La Honda Comment
  RSA0019103  Ribes sanguineum var. glutinosum I. L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA0019113  Ribes sanguineum var. glutinosum L. R. Abrams, W. W. Eggleston 1924-3-23 19562 San Mateo Coast Range, near Palo Alto. 60 Comment
  SEINET12220348  Ribes sanguineum var. glutinosum Unknown 1932-1 8919 San Mateo La Honda Road to Sky Line Drive Comment
  CAS-BOT-BC363088  Rigiopappus leptocladus Ned Cahill 1974-5-13 272 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  CAS-BOT-BC363092  Rigiopappus leptocladus L. R. Abrams 1910-5-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs Lakes Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  UC24535  Romanzoffia californica J. Burtt Davy 1895-4-20 1065 San Mateo Pilarcitos Creek; ; Pilarcitos Creek, San Mateo Co. Comment
  UC306561  Romanzoffia californica A. D. E. Elmer May, 1903 4482 San Mateo towards San Mateo Crystal Springs Lake 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
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  SJSU15226  Rorippa curvisiliqua Toni Corelli 2012-7-12 802 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC74651  Rorippa curvisiliqua W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Valley Ponds. Comment
  CAS-BOT-BC74653  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo In bottom of San Francisquito Creek, about 60 m. above Pope Street bridge. Comment
  JROH1584  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19722 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC147629  Rosa californica Walter Knight; Irja Knight 1967-6-6 2068 San Mateo Overlooking San Francisco Bay. Point San Bruno Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC146703  Rosa gymnocarpa Ira L. Wiggins 1928-4-14 2922 San Mateo Alpine Creek Road Comment
  JROH3760  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23294  Rosa rubiginosa Alan T. Whittemore 1976-5-29 112 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  JROH2869  Rosmarinus officinalis Diane Renshaw, Ann Lambrecht 2011-6-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Westridge fence near Escobar Rd. turnaround Comment
  SEINET5550871  Rubiaceae H. S. Gentry 1931-1 89 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC152827  Rubus parviflorus Ira L. Wiggins 1925-4-1 1658 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  CAS-BOT-BC152835  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC152872  Rubus parviflorus W. S. Atkinson 1901-7-1 s.n. San Mateo Pescadero Cr., Santa Cruz Peninsula Comment
  JROH3771  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  UCSB11517  Rubus parviflorus Olson, Jim 1962-4-15 San Mateo Junction of Portola State Park Road and Camp Pomponio Road; 20 miles south of La Honda; 609 Comment
  CAS-BOT-BC156767  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 692 San Mateo San Bruno Mountain Comment
  SJSU10411  Rubus spectabilis R. B. Blake 1966-4-10 San Mateo Gazos Cr, Big Basin State Park Comment
Read comments
Dec 7 2010
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157093  Rubus ursinus W. B. Duncan 1924-5-25 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC157094  Rubus ursinus W. R. Dudley 1895-9-15 s.n. San Mateo [El Corte de Madera] Corte Madera Creek, Lumber Camp Comment
  CAS-BOT-BC157112  Rubus ursinus Javier Penalosa 1963-2-23 2650 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  POM223623  Rubus vitifolius S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  JROH3290  Rumex acetosella D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Searsville Ridge. Comment
  CAS-BOT-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  CAS-BOT-BC421820  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC421568  Rumex crassus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Mussel Rock. Comment
  CAS-BOT-BC421570  Rumex crassus John H. Thomas 1963-7-19 10195 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433356  Rumex crispus A. D. E. Elmer 1903-6-1 4266 San Mateo San Mateo 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
  CAS-BOT-BC433749  Rumex persicarioides Ira L. Wiggins 1929-8-24 3870 San Mateo Moss Beach Comment
  CAS-BOT-BC433750  Rumex persicarioides W. R. Dudley 1896-11-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Spanishtown beach near mouth of the Pilarcitos. Comment
  CAS-BOT-BC433824  Rumex pulcher Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Guadalupe Road Comment
  JROH3307  Rumex pulcher John Hunter Thomas 1981-5-19 20607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  RSA34798  Ruppia maritima I. L. Wiggins 1946-4-30 11199 San Mateo In brackish pool on W side of Bayshore Hwy 1/2 mile N of Redwood City, San Mateo County Comment
  UCR121549  Ruta chalepensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JEPS128160  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area. Sweeney Ridge Baquiano Trail. Comment
  JROH1717  Sagina apetala John H. Thomas 1971-4-25 15779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1136464  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Santa Cruz Quad. 0 Comment
  SEINET12002759  Salix bonplandiana McCallum 1933-1 s.n. San Mateo near Searsville Lake Comment
  CAS-BOT-BC107857  Salix gooddingii W. R. Dudley 1902-9-21 s.n. San Mateo Causeway over Crystal Springs Lake - Santa Cruz Peninsula Comment
  JROH3871  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3873  Salix lasiandra var. lasiandra John H. Thomas 1971-4-21 15768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3876  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3881  Salix lasiandra var. lasiandra Toni Corelli 2002-11-18 252 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, along eastern side of lake trail at west end of spillway 106 Comment
  SJSU7512  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-16 65007 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107136  Salix lasiolepis T. C. Zhchokke 1903-3-16 s.n. San Mateo Delta of San Francisquito Creek, near Stanford University Comment
  JROH3860  Salix lasiolepis W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Wild Plum Canyon, Searsville Ridge Comment
  RSA119073  Salix lasiolepis L. S. Rose 1958-3-19 58009 San Mateo Princeton. 6 Comment
  SEINET12003303  Salix lasiolepis L. S. Rose 1938-1 38302 San Mateo San Francisco, Mountain Lake, Presidio 30 Comment
  CAS-BOT-BC108260  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC128243  Salix lucida James McMurphy 1906-3-9 s.n. San Mateo By water trough, Kings Mountain Comment
  SBBG1241  Salix lucida subsp. lasiandra J. W. Congdon -Aug-1897 San Mateo Pescadero Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  CAS-BOT-BC126485  Salix sitchensis W. R. Dudley 1906-3-18 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126491  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126497  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo Near road from San Andreas Lake to Pilarcitos Lake Comment
  CAS-BOT-BC126506  Salix sitchensis D. E. Breedlove 1974-5-13 36212 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  POM167784  Salix sitchensis C. F. Baker 1902-3-18 390 San Mateo King's Mountain Comment
  POM196587  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek. Santa Cruz Peninsula. Comment
  RSA169344  Salix sitchensis L. S. Rose 1964-3-14 64006 San Mateo Princeton. 6 Comment
  RSA788843  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC176847  Salsola australis Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Guadalupe Canyon Parkway Comment
  CAS-BOT-BC180791  Salsola soda William Anderson 1968-7-25 s.n. San Mateo In saline area at west approach of Bumbarton Bridge on south side of road. Comment
  RSA15302  Salvia columbariae Carl B. Wolf 1927-4-3 s.n. San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 Comment
  CAS-BOT-BC246025  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper S. side, Santa Cruz Peninsula Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  CAS-BOT-BC236454  Sambucus racemosa subsp. racemosa Walter Knight; Irja Knight 1964-4-25 1231 San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek Comment
  UC889773  Sambucus racemosa var. racemosa L. R. Abrams 1916-3-26 5589 San Mateo road between San Mateo and Half Moon Bay (coast side of grade) Comment
  UCSC004609  Sanicula Randall Morgan 1994-3-12 2153 San Mateo Lower N slope of Coal Mine Ridge, not far from Alpine Road Comment
  POM133562  Sanicula arctopoides Edward L. Greene 1902-3-30 425 San Mateo Crystal Springs Lake. Comment
  UC1301128  Sanicula arctopoides Helen K. Sharsmith 1963-2-16 5131 a San Mateo above Daly City (San Francisco Bay Region, San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  SEINET13945102 Image available Sanicula arctopoides Lewis S. Rose 1965-1 65012 San Mateo San Bruno Mts, N end. Ca 400 ft 122 Comment
  SEINET13945107 Image available Sanicula arctopoides C. F. Baker 1902-1 425 San Mateo Crystal Springs Lake. Comment
  SEINET5570625  Sanicula arctopoides H. S. Gentry 1931-1 35 San Mateo Collected 2 miles W of San Bruno. Comment
  UC1598748  Sanicula arctopoides Ivar Tidestrom 1894-3-22 San Mateo Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  JROH323  Sanicula bipinnatifida John H. Thomas 1973-3-12 16485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56963  Sanicula crassicaulis Steven Triano 1988-5-24 181 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  JROH339  Sanicula crassicaulis John H. Thomas 1975-4-30 17844 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH340  Sanicula crassicaulis John H. Thomas 1975-6-5 17947 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  RSA176825  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC166810  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SEINET5766644 Image available Sanicula laciniata Robert A. Norris 1981-1 4122 San Mateo Open bank near small paved road: Vista Point, near Interstate Hwy. 280, ca. 1.5 SE of Jct. with State Hwy. 92, San Mateo Co., Calif. Comment
  NY406244  Sanicula serpentina A. D. E. Elmer 04 1903 4498 San Mateo Portola Comment
  RSA445295  Satureja douglasii H. F. Copeland 1929-7-4 1231 San Mateo La Honda Grade. Comment
  RSA445298  Satureja douglasii E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  RSA187287  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  JROH359  Scandix pecten-veneris John Hunter Thomas 1983-4-20 21537 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC218936  Schinus molle John H. Thomas 1960-6-25 8788 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
  RSA140840  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  RSA366009  Schoenoplectus californicus Carolyn Clements s.n. San Mateo San Mateo Comment
  RSA32340  Schoenoplectus pungens Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  SEINET11754562  Schoenoplectus pungens Unknown 1932-1 9115 San Mateo Half Moon Bay 0 Comment
  CAS-BOT-BC111779  Schoenoplectus pungens var. badius Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC176408  Scirpus cernuus var. californicus Peter Rubtzoff; Roman Gankin 1975-5-21 7970 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1100829  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1559 San Mateo marshes at Sharp Park Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes Comment
  CAS-BOT-BC519007  Scoliopus bigelovii W. R. Dudley 1898-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  SEINET12050509  Scoliopus bigelovii F. H. Utech 1988-1 88 -040 San Mateo 2.6 mi from junction of Kings Mt. Road & CA 35 on former enroute to Woodside 350 Comment
  UC454434  Scoliopus bigelovii Manton Feb. 1906 San Mateo Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  SEINET12287674  Scrophularia californica Unknown 1933-1 104 San Mateo Mud Lake Comment
  JROH2888  Scutellaria tuberosa John Hunter Thomas 1986-5-17 24054 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  JROH2890  Scutellaria tuberosa John Hunter Thomas 1992-4-23 25161 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  UCR26155  Sedum spathulifolium G. R. Ballmer 1982-4-24 s.n. San Mateo San Bruno Mtn near Daly City. 370 Comment
  CAS-BOT-BC59053  Sedum spathulifolium John F. Emmel 1970-5-2 269 San Mateo South end of Milagra ridge, along and north of Sharp Park Road. 175 Comment
  CAS-BOT-BC59272  Sedum spathulifolium W. R. Dudley 1897-6-4 s.n. San Mateo On rocks by Canyon Camp, W. Waddell Cr. Comment
  RSA0074737  Sedum spathulifolium R. F. Thorne, P. C. Everett 1963-6-9 32245 San Mateo On top of San Bruno Mountain. 335 Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  RSA0013330  Senecio aronicoides A. D. E. Elmer 1903-05 4508 San Mateo San Bruno Hills. Comment
  UC1219871  Senecio glomeratus J. H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 304 Comment
  JROH1225  Senecio vulgaris John H. Thomas 1973-3-12 16497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364639  Senecio vulgaris Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. At top of mountain Comment
  CAS-BOT-BC364640  Senecio vulgaris Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  NY64526  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo West side of King's Mountain Comment
  NY804113  Sequoia sempervirens C. R. Broome 1978-7-2 2224 San Mateo Kings Mountain Road, 1.5 miles W of its junction with CA Hwy 84. Comment
  CAS-BOT-BC85777  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, by Hamilton's Comment
  SEINET3243948  Setaria parviflora John Thomas Howell 1957-1 32805 San Mateo Holy Cross Cemetary, San Mateo Co. Comment
  CDA6642  Sherardia arvensis Wm. Davis 1958-6-5 San Mateo San Bruno. 0 Comment
  JEPS112710  Sidalcea diploscypha Dean W. Taylor 1994-5-10 14265 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  SD39293  Sidalcea diploscypha Janet Turner 1933-5-30 3669 San Mateo Woodside. 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
  SD39295  Sidalcea diploscypha Edith A. Purer 1933-5-30 3636 San Mateo Between Woodside and Spring Valley Lakes. Comment
  CAS-BOT-BC205604  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9469 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain 237 Comment
  CDA33789  Sidalcea malviflora D. G. Kelch 2011-3-13 11 .049 San Mateo Pacifica. Along sea bluffs Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  RSA187474  Sidalcea malviflora subsp. malviflora John H. Thomas 1964-4-30 10360 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  RSA448203  Sidalcea malviflora subsp. malviflora Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. 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
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  CAS-BOT-BC386857  Silene gallica Margaret Barry 1937-5-15 144 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC386860  Silene gallica W. R. Dudley 1897-1-1 s.n. San Mateo Butano Creek, Big Basin. Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389199  Silene laciniata subsp. californica Josephine D. Randall 1907-7-24 30 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC389201  Silene laciniata subsp. californica Ned Cahill 1974-5-18 283 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC852949  Silene scouleri subsp. grandis Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  CAS-BOT-BC389895  Silene scouleri subsp. scouleri Dean Wm. Taylor 1988-6-5 9792 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  CAS-BOT-BC364860  Silybum marianum J. H. Thomas 1949-5-25 562 San Mateo Near western approach to the Dumbarton Bay Bridge Comment
  POM272585  Sinapis arvensis Lyman Benson 1939-7-1 9677 a San Mateo San Francisco City Limits. 30 Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176179  Sisyrinchium californicum Peter Rubtzoff 1975-5-21 7969 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1032495  Sisyrinchium californicum H. S. Yates 1935-3-8 5218 San Mateo 2 mi sw of Pescadero 60 Comment
  JEPS101208  Solanum americanum Dean W. Taylor 1989-8-1 10409 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 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
  UC1332467  Solanum douglasii G. L. Stebbins Jr. and E. F. Paddock 1939-8-17 63 San Mateo San Gregorio Comment
  UCR122985  Solanum douglasii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6782 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
  UC1327228  Solanum furcatum John T. Doyen 1966-3-28 34 San Mateo San Bruno Mountains, near Radio Towers on top San Bruno Mountains Comment
  RSA784603  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC157036  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  CAS-BOT-BC58480  Solanum umbelliferum F. Hemphill 1973-3-17 616 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4184  Solanum umbelliferum Daniel Cohen 1953-4-11 22 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 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
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  UC1070247  Solidago elongata G. E. Sindel 1935-7-22 292 San Mateo 1/4 mi s Pescadero; Santa Cruz Quad. Comment
  CAS-BOT-BC365713  Solidago spathulata Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. West of NBC Tower Comment
  CAS-BOT-BC365745  Solidago spathulata Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  JEPS27367  Solidago spathulata Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7627 San Mateo on lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of the summit of San Bruno Mountain); Guardalupe Valley side of summit San Bruno Mountain 304 Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo 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
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1244  Soliva sessilis John Hunter Thomas 1978-5-12 19202 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach 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
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374703  Sonchus oleraceus Josephine D. Randall 1907-4-27 99 San Mateo Santa Cruz Peninsula. Kings Mt. 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
  JROH5585  Sparganium eurycarpum var. eurycarpum John Rawlings 2012-7-9 1201 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  CAS-BOT-BC236629  Spartina foliosa Ray Pestrong 1963-11-8 s.n. San Mateo In the marsh near East Palo Alto, Dumbarton Bridge, South San Francisco Bay Comment
  UCD92988  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-27 1622 San Mateo E of Redwood City. Comment
  CAS-BOT-BC390007  Spergula arvensis Javier Penalosa 1963-2-23 2643 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SJSU15797  Spergularia macrotheca var. macrotheca Toni Corelli 2010-6-1 677 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 23 Comment
  CAS-BOT-BC390458  Spergularia macrotheca var. macrotheca Robert Robertson 1954-5-1 115 San Mateo Bench at Pescadero Beach 9 Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390698  Spergularia rubra Robert Robertson 1954-5-1 117 San Mateo At Pescadero Beach 9 Comment
  CAS-BOT-BC390700  Spergularia rubra John Thomas Howell 1955-5-5 s.n. San Mateo 700 block of Bromfield Road, Burlingame Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  RSA0098734  Spergularia villosa Lyman Benson 1930-6-14 2154 San Mateo San Gregorio. 30 Comment
  RSA107095  Stachys ajugoides L. S. Rose 1956-7-2 s.n. San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  RSA131277  Stachys ajugoides L. R. Abrams 1915-6-7 5244 San Mateo Woodside to Crystal Springs Road. Comment
  UC100825  Stachys ajugoides var. ajugoides J. Burtt Davy 1893-6-17 810 San Mateo Belmont Comment
  JEPS34472  Stachys ajugoides var. rigida L. R. Heckard, and R. Bacigalupi 1963-7-2 1361 San Mateo trail to Montara Peak (nw slope) (above old county road); Montara Peak 304 Comment
  CHSC52443  Stachys bullata Sandy Trimble 1987-4-13 19 San Mateo On s side of Hwy. 84, 8.1 mi w of Hwy 1and 7.2 mi e of Hwy 35. 335 Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  JROH2904  Stachys bullata John Hunter Thomas 1977-6-16 18809 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  RSA116742  Stachys bullata W. R. Dudley s.n. San Mateo El Corte Madera Road, near Stanford University. Comment
  RSA107098  Stachys chamissonis L. S. Rose 1956-7-2 56118 San Mateo Emerald Lake, hills of Redwood City. 183 Comment
  POM204001  Stachys pycnantha L. S. Rose 1934-5-27 s.n. San Mateo Emerald Lake. Comment
  UC2055637  Stachys pycnantha Carl B. Wolf 1927-6-1 535 San Mateo Above Emerald Lake, W of Redwood City . Comment
  RSA152069  Stachys rigida subsp. quercetorum John H. Thomas 1961-5-12 9330 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC5590  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road 137 Comment
  UCR122976  Stachys rigida var. quercetorum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6768 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  SJSU15960  Stachys rigida var. rigida John Rawlings, Ken Hickman 2016-5-26 1836 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
  HSC31059  Stebbinsoseris heterocarpa Kenton Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda Rd. Comment
  JROH1781  Stellaria media John H. Thomas 1975-4-19 17795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1786  Stellaria media John Hunter Thomas 1982-3-23 20815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394065  Stellaria media Robert Martineau 1974-3-27 11 San Mateo Foothills of the eastern side of the Santa Cruz Mountains. Five miles south of center of Palo Alto; Foothill Park, Palo Alto 548 Comment
  CAS-BOT-BC398982  Stellaria nitens H. A. Dutton 1900-3-25 s.n. San Mateo Woodside. Northside of stone fence Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  JROH5319  Stipa lepida Duncan M. Porter 1960-4-22 649 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  CAS-BOT-BC423013  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  SD38068  Stylomecon heterophylla Marie Cummings 1933-5-8 80 San Mateo Steven's Creek. Comment
  UC50112  Stylomecon heterophylla Ivar Tidestrom May, 1894 San Mateo Comment
  CAS-BOT-BC271603  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge, San Bruno Mountain Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA46811  Symphoricarpos albus var. laevigatus Doris K. Kildale 1930-6-19 8017 San Mateo Kings Mountain. Comment
  CAS-BOT-BC237061  Symphoricarpos mollis Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC237067  Symphoricarpos mollis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  JROH525  Symphyotrichum chilense John Hunter Thomas 1981-9-24 20750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32397  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Pt 1 Comment
  SJSU11805  Symphyotrichum chilense R. E. Douglas 1964-11-11 San Mateo Half Moon Bay Comment
  UC1119619  Symphyotrichum chilense T. Tyrrell 1928-9-11 5 San Mateo 2 mi s San Gregorio; Santa Cruz Quadrangle 91 Comment
  UC1555382  Symphyotrichum chilense J. A. DeBenedictis 1988-7-13 1542 San Mateo San Bruno Mt. Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99388  Symphyotrichum subspicatum Gordon H. True 1936-6-14 507 San Mateo Canyon n. of Salada Beach Comment
  JEPS81901  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20719 San Mateo Northeast slope Montara Mt. Montara Mt. 243 Comment
  UC1927817  Symphyotrichum subspicatum David Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC376711  Tanacetum bipinnatum Barbara Sherfey; Arthur L. Menzies 1963-9-14 s.n. San Mateo San Bruno Hills Comment
  JROH3002  Taraxia ovata John H. Thomas 1975-5-26 17913 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39527  Taraxia ovata Janet Tuaner 1933-4-18 2126 San Mateo Emerald Lake Comment
  UCSB18688  Taraxia ovata Schulte, John 1963-4-27 San Mateo Jasper Ridge; 3 miles southwest of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH371  Tauschia hartwegii Carol Zabel 1989-3-4 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; diagonal trail between Trail 14 and Trail 8, by steps Comment
  CAS-BOT-BC447473  Tellima grandiflora Mita C. Daniel 1915-4-10 s.n. San Mateo Kings' Mountain Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  RSA176767  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UC1127673  Tellima grandiflora H. S. Yates 1935-5-8 5213 San Mateo 1.5 mi s Mindego Hill; Santa Cruz Quad. 335 Comment
  CAS-BOT-BC447474  Tellima grandiflora Philip C. Wheeler 1965-5-12 s.n. San Mateo South canyon below western power lines Comment
  UC1736327  Tellima grandiflora Dean William Taylor 1969-4-13 73 San Mateo 5 mi E of San Gregorio; Highway 85 152 Comment
  JROH3507  Thalictrum fendleri var. polycarpum John H. Thomas 1958-5-10 7159 San Mateo Jasper Ridge Biological Preserve, Stanford University. Fairly common along embankment of trail near Searsville Lake. Comment
  CAS-BOT-BC399841  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399847  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 B San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399852  Thalictrum polycarpum Alice Eastwood 1922-5-30 11330 San Mateo Crystal Springs Lake Comment
  SBBG68849  Thermopsis californica var. californica S. W. Hutchinson -Apr-1927 San Mateo Redwood City 2 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-BC66663  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1606  Thysanocarpus curvipes John Hunter Thomas 1986-4-5 23927 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447578  Tiarella trifoliata var. unifoliata Roland Block 1924-7-1 s.n. San Mateo King Mountain Comment
  RSA95468  Tiarella trifoliata var. unifoliata L. S. Rose 1953-7-27 53053 San Mateo Kings Mountain. 610 Comment
  UCR121588  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4967 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  JROH402  Torilis nodosa John Hunter Thomas 1989-5-5 24656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA45320  Torreya californica I. L. Wiggins 1945-5-5 11160 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH4760  Toxicoscordion fremontii John Hunter Thomas 1980-4-10 19871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1288  Tragopogon porrifolius John H. Thomas 1977-5-14 18606 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120742  Trientalis latifolia S. S. Tillett, I. Sternback 1956-6-24 525 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 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
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  UC33530  Trifolium albopurpureum var. albopurpureum E. R. Drew April 1888 San Mateo San Pedro Ranch Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UCD147019  Trifolium barbigerum Robert E. Preston 2011-6-16 2864 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.7 mi NW of Waterman Gap. 298 Comment
  UC165524  Trifolium barbigerum J. Burtt Davy 1895-1 1015 San Mateo Pilacitos Comment
  SEINET881659 Image available Trifolium bicephalum A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  POM18837  Trifolium bifidum C. F. Baker 743 San Mateo Woodside Comment
  POM20500  Trifolium bifidum var. decipiens A. D. E. Elmer 1903-04 4798 San Mateo Portola. 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
  POM223327  Trifolium bifidum var. decipiens L. S. Rose 35134 San Mateo Redwood City Comment
  POM277941  Trifolium ciliolatum Lyman D. Benson 6529 San Mateo Lake Searsville, Stanford University. 152 Comment
  UC165612  Trifolium ciliolatum J. Burtt Davy 1893-6-17 775 San Mateo Belmont Comment
  JROH2260  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2271  Trifolium depauperatum var. truncatum John H. Thomas 1973-4-14 16567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2276  Trifolium depauperatum var. truncatum John Hunter Thomas 1985-4-11 23524 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH2283  Trifolium fucatum John H. Thomas 1955-5-6 4987 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2286  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2299  Trifolium fucatum John Hunter Thomas 1982-4-28 20873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2310  Trifolium fucatum John Hunter Thomas 1992-5-5 25214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120972  Trifolium fucatum var. fucatum L. R. Abrams 1914-4-5 5086 San Mateo Menlo Park Comment
  UCSC005462  Trifolium gracilentum Randall Morgan 1995-6-6 2728 San Mateo Bean Hollow State Beach Comment
  UCSC005955  Trifolium gracilentum Randall Morgan 1995-6-6 2722 San Mateo Pescadero State Beach (HW 1 opposite Pescadero Road) Comment
  JROH2321  Trifolium hirtum John Hunter Thomas 1982-5-18 20942 San Mateo Jasper Ridge Biological Preserve, Stanford University; old road now partly plowed up, near main gate Comment
  UC146913  Trifolium microcephalum J. Burtt Davy 1893-6-22 837 San Mateo Lake Pilarcitos Comment
  UC555600  Trifolium microcephalum Herbert L. Mason 1927-4-23 3679 San Mateo summit of rd from La Honda to Pescadero Creek Comment
  JROH2339  Trifolium microdon John H. Thomas 1964-4-19 10316 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC010592  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area 12 Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  POM18844  Trifolium willdenovii C. F. Baker 1902-4-4 445 San Mateo Crystal Springs Lake. Comment
  RSA6274  Trifolium willdenovii D. D. Keck 1932-6-1 1791 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  UCSC008228  Trifolium willdenovii Randall Morgan 1995-6-22 2799 San Mateo Water Tank Creek near its confluence with Pescadero Creek Comment
  CHSC996  Trifolium wormskioldii A. Koopman 1929-5-9 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
  UCD109929  Trifolium wormskioldii June McCaskill 1954-5-8 291 San Mateo On bank above beach; Moss Beach. Comment
  SD27763  Trillium chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo About 2 miles back of Stanford University. 60 Comment
  CAS-BOT-BC521007  Trillium chloropetalum var. chloropetalum R. Bacigalupi 1922-3-1 s. n. San Mateo Jones Ranch, Pescadero Creek Comment
  RSA14213  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-17 200 San Mateo Los Trancos Creek, 2 miles back of Stanford University. 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
  RSA378200  Trillium chloropetalum var. giganteum L. J. Clemments s.n. San Mateo San Mateo Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC133433  Trillium ovatum A. D. E. Elmer 1903-4-1 4752 San Mateo Portola Comment
  CAS-BOT-BC133445  Trillium ovatum W. R. Dudley 1903-5-2 s.n. San Mateo Near Iverson's (Near Pescadero) Comment
  RSA120210  Trillium ovatum S. S. Tillett, I. Sternback 1956-6-24 526 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC765421  Trillium ovatum R. F. Hoover 1939-3-3 3895 San Mateo above Portola (on La Honda Rd.) Comment
  CDA39373  Trillium ovatum T. C. Fuller 1960-4-2 4081 San Mateo La Honda Rd., 1 mile north of La Honda. 0 Comment
  UC1327237  Triphysaria eriantha subsp. eriantha John T. Doyen 1966-3-28 36 San Mateo San Bruno Mountain; near Radio Towers on top Comment
  UC204180  Triphysaria eriantha subsp. rosea A. D. E. Elmer May, 1903 4670 San Mateo South San Francisco Comment
  CAS-BOT-BC238569  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  CAS-BOT-BC238575  Triphysaria floribunda R. S. Ferris; I. L. Wiggins 1932-4-7 8038 A San Mateo Hills above Colma Comment
  JEPS47716  Triphysaria floribunda Walter Knight and Irja Knight 1965-4-24 1054 San Mateo eastern end San Bruno Mountain; Point San Bruno, eastern end of San Bruno Mountain Comment
  UC1012338  Triphysaria floribunda F. W. Pennell and D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 mi w Burlingame 152 Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  UCR139356  Triphysaria pusilla David D. Keck 1932-5-11 1766 San Mateo San Francisco Bay Region, 2 mi north of San Gregorio 122 Comment
  JEPS40978  Triphysaria pusilla Lewis S. Rose 1965-3-25 65011 San Mateo n end San Bruno Mts.; n end San Bruno Mts. 121 Comment
  JROH4142  Triphysaria pusilla John Hunter Thomas 1983-4-3 21310 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach near Searsville Lab Comment
  JEPS6923  Triphysaria versicolor subsp. versicolor Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4562 San Mateo immediately behind Point Ano Nuevo; behind Point Ano Nuevo Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  SJSU2308  Triphysaria versicolor subsp. versicolor C. W. Sharsmith 1950-4-16 6637 San Mateo near Pescadero Point near Pescadero Comment
  IRVC9072  Triteleia ixioides subsp. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay drainage area; Summer Spring Road; woodside. Santa Cruz Mountains 152 Comment
  UCR143315  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont 30 Comment
  CAS-BOT-BC526361  Triteleia laxa Daniel Cohen 1953-6-1 103 San Mateo Los Trancos Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  UCSB17660  Triteleia laxa Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  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
  CAS-BOT-BC74064  Turritis glabra Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  CDA20602  Ulex europaeus J. Beall 2005-10-27 PDR 1359199 San Mateo San Francisco Bay Area; 0.25 mi Nof Westline and Skyline, Daly City. 0 Comment
  CDA31313  Ulex europaeus John Beall 2009-12-16 PDR# 1527839 San Mateo Brisbane: Sierra Point Parkway, Brisbane Marina. Comment
  POM349815  Ulex europaeus Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  CAS-BOT-BC91226  Umbellularia californica Elizabeth McClintock 1969-3-9 s.n. San Mateo San Bruno Mountains. In Gladys Canyon, south of Brisbane. Comment
  CAS-BOT-BC91229  Umbellularia californica George Oberlander 1949-4-9 38 San Mateo San Francisco Watershed Reserve. East side draw of Sawyer Ridge. Comment
  JROH139  Umbellularia californica John H. Thomas 1974-10-12 17621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH140  Umbellularia californica John Hunter Thomas 1981-2-14 20216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272291  Umbellularia californica Lyman Benson 1929-3-4 984 San Mateo Hill east of Lake Searsville. Comment
  POM50398  Umbellularia californica L. R. Abrams, W. W. Eggleston 1924-3-23 19565 San Mateo Coast Range, near Palo Alto. 60 Comment
  JROH1290  Uropappus lindleyi John H. Thomas 1963-5-12 10084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382765  Uropappus lindleyi George Oberlander 1949-7-10 714 San Mateo San Francisco Watershed Reserve. Near Skyline Blvd. Comment
  CAS-BOT-BC404026  Urtica dioica subsp. holosericea Saichi Kawahara 1968-7-29 463 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 Comment
  JEPS43426  Urtica urens W. L. Jepson 1921-4-3 9105 San Mateo Colma, Colma Canyon Colma Canyon; Colma, Colma Canyon Comment
  CAS-BOT-BC412535  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  SJSU6082  Vaccinium cespitosum S. H. Casey 1969-5-18 263 San Mateo Kamtchatka Point, San Bruno Mt Comment
  CAS-BOT-BC199353  Vaccinium ovatum W. R. Dudley 1893-1-20 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC199358  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199371  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  POM87997  Vaccinium ovatum L. R. Abrams 1902-3-16 2281 San Mateo Kings Mountain. Comment
  RSA681684  Vaccinium ovatum Annuschka Deb 1989-3-31 63 San Mateo Woodside. Comment
  SBBG9304  Vaccinium ovatum W. D. McLellan 1954-5-17 59 San Mateo Memorial Park near Pescadero Comment
  UC571031  Vaccinium ovatum H. L. Mason 1928-2-22 4165 San Mateo Summit of San Bruno Mountains Comment
  UC571033  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  CAS-BOT-BC199354  Vaccinium ovatum R. Stinchfield 1913-11-1 176 San Mateo King's Mt. Trail Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  RSA112362  Vaccinium parvifolium W. R. Dudley 1895-6-6 s.n. San Mateo Out trail from Iverson's Pescadero Creek to top Butano Ridge. Comment
  CAS-BOT-BC76138  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Comment
  JROH4148  Verbascum thapsus John Hunter Thomas 1982-5-25 20963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4257  Verbena lasiostachys var. lasiostachys John H. Thomas 1962-5-31 9895 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge 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
  RSA82516  Verbena robusta J. T. Howell 1939-6-16 14745 San Mateo Crystal Springs Lake. Comment
  UC1192052  Veronica americana Malcolm A. Nobs, S. Galen Smith 1949-8-25 1551 San Mateo Sharp Park Comment
  JROH4150  Veronica arvensis John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  SD2652  Vicia americana var. truncata Unknown Jun 1925 San Mateo Near La Honda Comment
  JROH2426  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 Comment
  SFV4290  Vicia gigantea 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
  UCR130219  Vicia gigantea George K. Helmkamp, E. A. Helmkamp 1999-6-28 4999 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH2441  Vicia sativa subsp. sativa John H. Thomas 1973-3-12 16491 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2443  Vicia sativa subsp. sativa H. J. Dengler 1975-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by "road" onto J.R. from Westridge, Goya Road entrance; 200 m from Westridge fence Comment
  JEPS112937  Vicia tetrasperma Dean W. Taylor 2002-3-20 17954 San Mateo Franklin Point, along path to the coastal bluff from parking area on Highway 1 15 Comment
  JROH423  Vinca major John H. Thomas 1967-4-20 12708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5883  Vinca major J. C. Gaither Jr. 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate. Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  RSA130984  Viola glabella M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC536573  Viola glabella Charles Piper Smith 1908-3-28 1369 San Mateo Woodside--Kings Mt. road 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
  CAS-BOT-BC536828  Viola glabella Roxana S. Ferris 1921-3-20 2110 San Mateo Santa Cruz Mountain Peninsula: Pescadero Creek in canon 6 mi above Pescadero Comment
  HSC23975  Viola glabella Mary Katherine Wicksten 1971-7-8 163 San Mateo Huddart Park, Squeeler Creek Comment
  RSA181578  Viola ocellata E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt.