Search Results — 2000 specimen records retrieved (1331 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC22697  Abronia latifolia Robert A. Schlising; Glenn Keator 1962-2-3 2043 San Mateo Sand dunes along Hwy 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  CAS-BOT-BC451119  Acaena pinnatifida var. californica Robert F. Hoover 1939-4-21 4053 San Mateo Two miles south of Colma Comment
  UC1176934  Acaena pinnatifida var. californica Peter H. Raven 1950-4-16 1795 San Mateo summit ridge San Bruno Mts. 182 Comment
  CAS-BOT-BC451125  Acaena pinnatifida var. californica Ira L. Wiggins 1942-5-26 10096 San Mateo Near the ocean, 2 1/2 miles south of Pescadero on the Old Coast Road. Comment
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 Comment
  UC517976  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  SEINET12276583  Acanthomintha ilicifolia L. S. Rose 1932-1 San Mateo Comment
  POM118224  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Miss H. A. Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  RSA0076541  Acanthomintha obovata subsp. duttonii Fay Gilbert 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  RSA0076542  Acanthomintha obovata subsp. duttonii L. S. Rose 1933-5-17 33171 San Mateo Redwood City. Comment
  RSA46810  Acer macrophyllum Doris K. Kildale 1929-6-19 8015 San Mateo Kings Mountain Comment
  SJSU10875  Acer macrophyllum E. C. Garbett 1960-4-13 San Mateo Corte Madera Creek, Alpine Rd Comment
  CAS-BOT-BC333212  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Santa Cruz Mountain Peninsula. LosTrancos Road near Las Trancos Dairy Comment
  JROH171  Acer negundo John Hunter Thomas 1982-11-6 21217 San Mateo Jasper Ridge Biological Preserve, Stanford University. On causeway 106 Comment
  CAS-BOT-BC28768  Achillea millefolium Daniel Cohen 1953-5-9 79 San Mateo Top of sea cliff near Pescadero Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  JROH471  Achyrachaena mollis John Hunter Thomas 1982-5-18 20939 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  JROH475  Achyrachaena mollis John Hunter Thomas 1988-5-3 24447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5888  Achyrachaena mollis Ruth Porter 1998-5-1 s.n. 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
  JROH2094  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3400  Actaea rubra Carol Zabel 1989-8-27 32 San Mateo Jasper Ridge Biological Preserve, Stanford University. From the "redwood circle" on Trail 1, go east 10-12 m. South side of trail just before a 1-m-high rock. Comment
  UC202840  Actaea rubra A. D. E. Elmer May, 1903 4703 San Mateo Butano Creek Comment
  CAS-BOT-BC391682  Actaea rubra Mrs. E. C. Sutliffe 1933-9-1 s.n. San Mateo Unspecified Comment
  JROH478  Adenocaulon bicolor Volney Rattan 1867-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  JROH89  Adiantum jordanii John H. Thomas 1968-4-13 14290 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5909  Adiantum jordanii M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail along San Francisquito Creek, near Redwood Grove Comment
  UCSB18581  Adiantum jordanii Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  RSA12768  Aesculus californica Carl B. Wolf 1934-11-13 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave and Cornell Road, NW of San Francisquito Creek. 15 Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  UC1301057  Agoseris apargioides Helen K. Sharsmith 1963-2-16 5148 San Mateo Thornton Beach San Francisco Bay Region, Thornton Beach Comment
  SEINET196521 Image available Agoseris grandiflora W. A. Harvey, J. M. Tucker 1948-6-29 1707 San Mateo Portola State Park ; Road to Portola State Park just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC23019  Agoseris grandiflora var. grandiflora W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  CAS-BOT-BC46126  Agoseris heterophylla Ned Cahill 1974-4-29 195 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET11855015  Agoseris heterophylla Unknown 1933-1 8434 San Mateo Redwood City Comment
  POM52180  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Comment
  RSA416454  Agoseris hirsuta D. D. Keck 1932-5-6 1461 San Mateo Belmont. Comment
  CAS-BOT-BC15228  Agoseris hirsuta W. R. Dudley 1899-12-3 s.n. San Mateo Top of range below Goat Ranch Road near Corte de Madera Creek Comment
  CAS-BOT-BC15233  Agoseris hirsuta W. R. Dudley 1895-12-14 s.n. San Mateo La Honda Road, at top of mountain Comment
  RSA416446  Agoseris hirsuta Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive Comment
  UC311237  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Comment
  JROH4773  Agrostis avenacea John Hunter Thomas 1981-7-12 20700 San Mateo Jasper Ridge Biological Preserve, Stanford University; on sandy beach 120 Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  RSA128659  Agrostis avenacea P. H. Raven 1950-6-2 2272 San Mateo On the stand of San Andreas Lake. Comment
  RSA796393  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, West of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  UCD52248  Agrostis exarata var. microphylla Collector unknown 1925-6-15 2115 San Mateo Pescadero - Santa Cruz Rd. Comment
  CAS-BOT-BC139459  Agrostis hallii Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. Juncus Ravine. 182 Comment
  CAS-BOT-BC139463  Agrostis hallii Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountains. Canyon east of quarry. Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  JROH4796  Agrostis microphylla A. G. Vestal 1923-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC138951  Agrostis pallens W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge. Comment
  JROH4798  Agrostis pallens Herbert Dengler 1957-6-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East serp. meadow Comment
  SJSU15958  Agrostis pallens John Rawlings, Ken Hickman 2016-5-26 1835 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  SEINET3917685  Aira caryophyllea K. Harper 1984-4-25 84 -7 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138236  Aira caryophyllea var. caryophyllea Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace. 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-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  CAS-BOT-BC177089  Albizia lophantha Phillip C. Wheeler 1965-6-8 s.n. San Mateo [Bay shore] Bayshore, cut area Comment
  CAS-BOT-BC445395  Alisma plantago-aquatica Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mountains Comment
  JROH4303  Alisma triviale Carol Zabel 2006-4-19 56 San Mateo Jasper Ridge Biological Preserve, Stanford University; off first bridge on Trail 12 (end of Road E), northeast side of bridge Comment
  JROH4569  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4545  Allium amplectens John Hunter Thomas 1986-5-8 24028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  UC843252  Allium falcifolium Lewis S. Rose 1935-4-16 35095 San Mateo w Redwood City; Emerald Lake Comment
  CAS-BOT-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  UCD138563  Allium neapolitanum H. Frederick 1972-4-1 s.n. San Mateo Bernal Ave., Burlingame. Comment
  CAS-BOT-BC132033  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-6-1 4595 San Mateo San Mateo Comment
  CAS-BOT-BC132034  Allium peninsulare var. franciscanum A. D. E. Elmer 1903-6-1 4595 San Mateo San Mateo Comment
  JROH4557  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC170158  Alnus rhombifolia George Oberlander 1950-4-2 508 San Mateo San Mateo Creek Canyon Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  JROH175  Amaranthus albus John H. Thomas 1974-10-29 17650 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC135837  Amaranthus californicus C. F. Baker 1902-10-20 1855 San Mateo Searsville Comment
  JROH178  Amaranthus retroflexus John H. Thomas 1974-10-29 17651 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA34348  Amaranthus retroflexus E. Finley 1990-10-25 s.n. San Mateo Redwood City, Jefferson St. at Lonesome Pine. 0 Comment
  CAS-BOT-BC44932  Ambrosia chamissonis John H. Thomas 1963-7-19 10187 San Mateo Ano Nuevo Island, about 1/2 miles off shore and above 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC136825  Amelanchier utahensis Elizabeth McClintock; Paul Reedberg 1988-8-12 s.n. San Mateo Slope below Summit, San Bruno Mountains Comment
  JROH3593  Amelanchier utahensis Roxana Stinchfield 1914-4-26 145 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  CAS-BOT-BC162063  Ammophila breviligulata Rimo Bacigalupi 1922-3-27 s.n. San Mateo Mouth of Gazos Creek. Comment
  UC1178221  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo 1.7 mi below junction to Skyline (opposite gravel pit, Road w of San Mateo City to Skyline Blvd, (Hillsborough)) Comment
  JROH1354  Amsinckia menziesii John Hunter Thomas 1987-5-15 24281 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CHSC57069  Amsinckia spectabilis var. spectabilis Steven Triano 1988-5-24 213 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UCD117431  Anagallis arvensis Richard W. Cleveland 1951-4-28 37 San Mateo 2.2 miles south of Pescadero. Comment
  UCD14397  Anagallis arvensis Marcy Dickenson 1983-4-23 120 San Mateo San Mateo Co.; on Jasper Ridge, at the Stanford Biological Preserve, within 1 mile of Westridge Road entrance; Comment
  CAS-BOT-BC45181  Anaphalis margaritacea John Hunter Thomas 1963-9-11 10265 San Mateo San Bruno Mountain, in northern part of country 396 Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  UCD128852  Anaphalis margaritacea J. M Tucker 1951-8-6 2220 San Mateo M. R. Mattei Ranch, ca. 1.5 miles northeast of Pescadero. Comment
  CAS-BOT-BC391913  Anemone grayi J. H. Thomas 1954-4-15 3905 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CAS-BOT-BC391918  Anemone grayi Josephine D. Randall 1908-4-12 s.n. San Mateo Santa Cruz Peninsula. King's Mt. Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  JROH192  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273189  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC273190  Anisocarpus madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  UC89529  Anisocarpus madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain Comment
  UCD128894  Anisocarpus madioides W. A. Harvey; J. M. Tucker 1948-6-29 1704 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  UCD18541  Anthemis cotula Roman Gankin 1950-7-4 9 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  JROH3600  Aphanes occidentalis John H. Thomas 1963-4-17 10036 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near the "riders shack" at the Searsville end of the ridge Comment
  JROH3612  Aphanes occidentalis John Hunter Thomas 1990-4-26 24815 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path near Rattlesnake Rocks Comment
  UC555316  Aphanes occidentalis Herbert L. Mason 1927-4-23 3688 San Mateo Summit of road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC454480  Aphanes occidentalis Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge, San Bruno Mountain Comment
  RSA112399  Aphanes occidentalis Hester R. Davis 1920-4-12 36 San Mateo San Mateo County: Near Searville Lake Comment
  JEPS60392  Aquilegia eximia Mrs. Inez Ray Smith 1912-7-27 San Mateo Crystal Springs Comment
  CAS-BOT-BC392066  Aquilegia eximia W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Southeast of Crystal Springs Lake Comment
  CAS-BOT-BC405853  Aquilegia formosa David D. Keck 1932-5-11 1771 San Mateo Three miles west of Kings Mountain, on the road to Tunitas, west slope of Santa Cruz Mountains. 450 Comment
  CAS-BOT-BC405854  Aquilegia formosa Ray H. Yanis 1951-4-19 22 San Mateo King's Mountain. 15 Comment
  CAS-BOT-BC405858  Aquilegia formosa Paul Arnaud 1941-4-19 s.n. San Mateo Hills - after Hesler farm enterance. Redwood City Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  SEINET12087099  Aquilegia formosa G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo no further locality Comment
  CHSC1435  Aquilegia formosa var. truncata J. Koopman 1929-5-11 San Mateo Moss Beach. Comment
  CAS-BOT-BC17334  Arabis blepharophylla Peter H. Raven 1967-2-18 20828 San Mateo Off Crocker Avenue, Daly City, just south of San Francisco County Line. Comment
  CAS-BOT-BC17335  Arabis blepharophylla Reed Clark Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC17340  Arabis blepharophylla Roxana S. Ferris 1920-3-8 1763 San Mateo Montara Mountains in vicinity of South Peak. 518 Comment
  JROH1436  Arabis blepharophylla John Hunter Thomas 1984-4-2 23273 3 G San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  RSA0125533  Arabis blepharophylla D. W. Taylor 1988-3-30 9477 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain. 237 Comment
  JEPS90213  Arabis glabra Dean W. Taylor 1988-3-30 9470 San Mateo near the ridgecrest of northern slope of se ridge of San Bruno Mountain (Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mountain); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  CAS-BOT-BC171636  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  CAS-BOT-BC128668  Arbutus menziesii Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo South of Brisbane on side hill by Frontage Road - San Bruno Mountain Comment
  CAS-BOT-BC128674  Arbutus menziesii Ned Cahill 1974-4-30 233 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City. Comment
  UC311549  Arbutus menziesii A. D. E. Elmer May, 1903 4515 San Mateo Scarsville Lake Comment
  UC876368  Arbutus menziesii E. W. Rust 1907-4-22 131 San Mateo vicinity of Stanford Unifersity (King's Mountain); Northern California, King's Mountain 274 Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  JROH5561  Arctostaphylos John Rawlings, Toni Corelli 2013-1-29 1110 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail to Hermit's Mine site. 195 Comment
  UC1212008  Arctostaphylos James Roof 1961-4-18 San Mateo mt. spur 1/4 mi ne summit; San Bruno Mountain 335 Comment
  CAS-BOT-BC24198  Arctostaphylos andersonii A. T. Harrison 1970-3-13 s.n. San Mateo San Francisco Watershed reserve. On ridge west of Old Whipple Rd. on western extension of Edgewood Rd. Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  UCD50304  Arctostaphylos andersonii Roman Gankin 1959-2-22 323 San Mateo 1.2 miles from junction of State Hwy 5 on King's Mt. Road. Comment
  SEINET11989210  Arctostaphylos andersonii E. McClintock, Knight, W.; Knight, I. 1982-1 4632 San Mateo San Pedro County Park, near Pacifica Comment
  UCD50292  Arctostaphylos andersonii Roman Gankin; J. Ben Jaacov 1965-1-27 384 San Mateo On State Highway 35 (Skyline Blvd.), 1.1 miles north of junction with State Highway 84, San Mateo County, California. Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  CAS-BOT-BC23545  Arctostaphylos crustacea Mrs. S. G. Suttiffe 1933-4-5 s.n. San Mateo Las Lunitas Canyon, King Mt. Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  SEINET2030220 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. Type locality 600 Comment
  JROH1929  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-4-29 15612 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
  JROH1934  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  SEINET11988205  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4420 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 102 Comment
  CAS-BOT-BC24500  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-BC27194  Arctostaphylos imbricata Mrs. Ernest Meiere 1915-6-18 s.n. San Mateo San Bruno hills Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  JEPS108597  Arctostaphylos montaraensis R. Raiche 1984-1-27 San Mateo Montara Mountain Comment
  RSA380888  Arctostaphylos montaraensis Roman Gankin, W. Richard Hildreth 1966-5-17 738 San Mateo Montara Mountain Comment
Read comments
Mar 6 2010
  UCD51754  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo On east-facing slopes of Montara Mountain. Comment
  CAS-BOT-BC38525  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2790 San Mateo 1 mi. w. of Scarper peak jct. enroute Montara Mt. on San Francisco Water Dept. property. 304 Comment
  SEINET11987207  Arctostaphylos montaraensis W. Knight, Knight, I. 1981-1 3933 A San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  UCD51971  Arctostaphylos pacifica Robert F. Thorne; P. C. Everett 1963-6-9 32223 San Mateo On top of San Bruno Mt. near TV tower. Comment
  CAS-BOT-BC44738  Arctostaphylos regismontana Carl B. Wolf 1930-11-6 1067 San Mateo 2 miles north of summit of Kings Mt., Skyline Blvd. 640 Comment
  CAS-BOT-BC44746  Arctostaphylos regismontana W. R. Dudley 1906-3-9 5 San Mateo King's Mt. - Santa Cruz Range 609 Comment
  CAS-BOT-BC44747  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  CAS-BOT-BC44750  Arctostaphylos regismontana Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  JEPS78657  Arctostaphylos regismontana Edward Lee 1936-1-26 1736 San Mateo junction King's Mt. Rd. and Skyline Blvd (summit of ridge); Cahill Ridge 609 Comment
  JEPS79444  Arctostaphylos regismontana Edward Lee with H. L. Mason 1935-6-15 1432 San Mateo near summit King's Mountain Comment
  POM367226  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  RSA0089798  Arctostaphylos regismontana Dean Wm. Taylor 2016-3-30 21632 San Mateo Kings Mountain Road; under PG&E transmission powerlines just north of the road along the entrance road to the Archery Range. 557 Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  RSA636739  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24640 San Mateo NW side of Montara Mtn. 150 Comment
  SBBG39533  Arctostaphylos regismontana L. S. Rose 1970-1-30 70001 San Mateo King's Mtn, Santa Cruz Mtns 609 Comment
  UC1120849  Arctostaphylos regismontana A. E. Wieslander 1939-7-16 896 San Mateo Kings Mt.-Sierra Moreno Santa Cruz Quadrangle Comment
  CAS-BOT-BC44667  Arctostaphylos sensitiva T. J. B. 1913-3-14 s.n. San Mateo South side of Chrystal Springs Lake on Road this side of Rand's store Comment
  CAS-BOT-BC44669  Arctostaphylos sensitiva George Oberlander 1950-4-2 521 San Mateo Southern Cahill Ridge Comment
  UCD51722  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile northeast of Peak Mountain of Montara Mountain range, San Mateo County, California. 487 Comment
  JEPS48596  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 571 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  RSA128520  Arctostaphylos tomentosa subsp. crustacea James I. McMurphy 1906-03 s.n. San Mateo Kings Mt. Road. Comment
  POM285160  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1929-3-2 986 San Mateo Hill east of Lake Searsville. Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 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
  UCD52149  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4494 San Mateo Kamchatka Point, San Bruno Mountain. San Mateo County. 320 Comment
  SEINET11989204  Arctostaphylos uva-ursi W. Knight, Knight, I.; McClintock, E. 1982-1 4639 San Mateo NE of parking loc, San Bruno Mountain 335 Comment
  SEINET11987228  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3891 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  SEINET11989211  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4630 San Mateo windy Kamchatka Point, San Bruno Mountain Comment
  CAS-BOT-BC102179  Arctotheca Paul Reedberg 1988-4-27 s.n. San Mateo Adjacent to Camp Silverspot. San Bruno Mountains Comment
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  SEINET11929723  Armeria maritima L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  POM209881  Armeria maritima subsp. californica D. D. Keck 1934-7-7 2942 San Mateo Pigeon Point. Comment
  POM268911  Armeria maritima subsp. californica Lyman Benson 1930-6-14 2149 San Mateo San Gregorio. 30 Comment
  RSA14196  Armeria maritima subsp. californica Carl B. Wolf 1927-1-29 173 San Mateo San Gregorio. Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1537507  Armeria maritima subsp. californica Gordon H. True Jr. 1936-6-7 485 San Mateo 4 mi s Pescadero (top of ocean bluff) 15 Comment
  CAS-BOT-BC82513  Arnica discoidea L. R. A. 1902-5-20 2464 San Mateo [King's] Kings Mountain Comment
  CDA29889  Arrhenatherum elatius J. Eide 2009-7-2 PDR# 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno. 0 Comment
  CAS-BOT-BC84880  Artemisia californica James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  RSA116787  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge, Searsville Comment
  CAS-BOT-BC93934  Artemisia douglasiana Josephine D. Randall 1907-6-29 53 San Mateo Santa Cruz Peninsula, Portola Road Comment
  HSC24037  Artemisia douglasiana Mary Katherine Wicksten 1971-7-12 169 San Mateo Huddart Park; Road bank of King's Mountain Rd. below Archery Flat Comment
  SEINET8734602 Image available Artemisia heterophylla Lewis S. Rose 1938-1 38232 San Mateo San Mateo 30 Comment
  CAS-BOT-BC93640  Artemisia pycnocephala W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula - sands near Mussel Rock Comment
  UC484308  Artemisia pycnocephala C. B. Wolf 1930-11-5 1806 San Mateo along coastal bluffs s of Pescadero 7 Comment
  UC1100217  Arundo donax Malcolm A. Nobs, S. Galen Smith 1949-8-25 1574 San Mateo s of Rockaway Beach Comment
Read comments
Jun 5 2008
  JROH436  Asclepias fascicularis John Hunter Thomas 1982-9-23 21161 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  SEINET10637037  Asclepias fascicularis Lewis S. Rose 1936-8-19 Rose 36714 San Mateo San Carlos 30 Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  RSA249496  Aster chilensis John F. Emmel 1971-9-6 386 San Mateo Ravine 0.3 air miles southeast of 1314' summit, NE slope of San Bruno Mts. 320 Comment
  UC136769  Astragalus douglasii var. douglasii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  UC1537101  Astragalus nuttallii var. virgatus Gordon H. True Jr. 1936-6-14 511 San Mateo fairly open hillside on Salada Beach Road 1 mi from Skyline Blvd.; on Salada Beach Road 182 Comment
  CAS-BOT-BC177970  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  RSA681761  Astragalus oxyphysus Annuschka Deb 1989-4-19 117 A San Mateo YBN Berm near parking lot Comment
  SEINET10775830  Astragalus pycnostachyus Charles F. Baker 1902-10-1 Baker 1744 San Mateo Pillar Point. Comment
  UCD97426  Atriplex hortensis Malcolm A. Nobs; S. Galen Smith 1949-8-27 1619 San Mateo E of Redwood City. Comment
  CAS-BOT-BC172666  Atriplex lentiformis C. D. Duncan 1922-9-1 s.n. San Mateo Boncill Estate, Atherton Comment
  SEINET4135307  Atriplex leucophylla L. Thorne, N. Thorne 1990-7-4 1 San Mateo Half Moon Bay Harbor.; 0 Comment
  CAS-BOT-BC146125  Avena barbata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon. Comment
  JROH4841  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  SD110280  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio Comment
  CAS-BOT-BC145957  Avena fatua John Thomas Howell 1956-4-25 31293 San Mateo Skyline Boulevard just north of Crystal Springs Lake dam. Comment
  JROH5  Azolla filiculoides S. F. Blake 1927-6-24 9944 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC68328  Azolla filiculoides Volney Rattan 1883-3-1 s.n. San Mateo Milbrae Comment
  CAS-BOT-BC98695  Baccharis douglasii Josephine D. Randall 1907-7-23 57 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC98700  Baccharis douglasii John Thomas Howell 1926-10-9 2217 San Mateo Near Lake San Andreas Comment
  JROH533  Baccharis glutinosa John H. Thomas 1968-5-31 12938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC99507  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Radio Road, San Bruno Mountains Comment
  CAS-BOT-BC99509  Baccharis pilularis E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC99512  Baccharis pilularis P. C. Everett 1934-8-19 6069 San Mateo Pescadero 198 Comment
  CAS-BOT-BC99516  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo Above Preston's, La Honda Road Comment
  CAS-BOT-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99527  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek toward Searsville Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  POM350433  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  RSA93165  Baccharis pilularis F. W. Peirson 1925-9-13 6425 San Mateo Rockaway beach. Comment
  UCSC007721  Baccharis pilularis Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC16634  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-15 1236 San Mateo Colma Canyon - San Bruno Mountain. Comment
  JEPS42530  Barbarea orthoceras William Hirano 1966-3-8 San Mateo a short distance below and ne end of paved road at ridge summit (television stations) San Bruno Mtn. 335 Comment
  JROH1438  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1440  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99578  Barbarea orthoceras Darley F. Howe 1968-4-14 San Mateo San Francisco Game Reserve near San Bruno. Comment
  UCR279901  Barbarea orthoceras var. dolichocarpa Peter Rubtzoff 1975-5-21 7962 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  JEPS35291  Bellardia trixago J. H. Thomas 1962-5-8 9852 San Mateo Pigeon Point 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
  JROH1320  Berberis pinnata subsp. pinnata H. B. Hannibal 1910-10-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Sandstone Cave Comment
  JROH1322  Berberis pinnata subsp. pinnata John Rawlings 2007-4-1 0909 San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection Trail 1 and Trail 5. 84 Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC95352  Bowlesia incana W. R. Dudley 1894-3-27 s.n. San Mateo Above falls at mouth of Purisima Creek Comment
  CAS-BOT-BC145403  Brachypodium distachyon Bonnie McClellan; J. Ed. McClellan 1971-5-31 s.n. San Mateo Butano State Park. Comment
  CDA36483  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; on deer trail north east from trail below Old La Honda Road. Comment
  CDA43034  Brachypodium sylvaticum T. Hyland 2014-10-22 PDR# MVAP 06099366 San Mateo Upper China Grade. Comment
  UC1719607  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 1387519 San Mateo Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  RSA0084271  Brassica nigra John H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC36666  Brassica oleracea John H. Thomas 1955-11-9 5506 San Mateo Near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line. Comment
  CAS-BOT-BC36669  Brassica oleracea L. R. Abrams; Ira L. Wiggins 1939-6-3 439 San Mateo 2 miles north of Pigeon Point Lighthouse. Comment
  CAS-BOT-BC36793  Brassica rapa John H. Thomas 1971-10-27 16027 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus. Comment
  CAS-BOT-BC145329  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CAS-BOT-BC145343  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  JROH4891  Briza minor John Hunter Thomas 1991-4-13 24990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  UC790954  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlos 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
  JROH4583  Brodiaea elegans subsp. elegans John Hunter Thomas 1977-6-7 18733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23992  Brodiaea elegans subsp. elegans Mary Katherine Wicksten 1971-6-17 44 San Mateo Huddart Park, grassy hill above Oak Area Comment
  CAS-BOT-BC483168  Brodiaea terrestris subsp. terrestris John H. Thomas 1971-5-2 15808 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC483173  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483178  Brodiaea terrestris subsp. terrestris H. L. Mason 1917-4-10 113 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside 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-BC148982  Bromus carinatus var. carinatus George Oberlander 1950-4-22 753 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC149019  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 327 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  CAS-BOT-BC149021  Bromus carinatus var. carinatus Ned Cahill 1974-4-29 184 San Mateo Near the intersection of Canada and Edgewood Roads, About 3 miles westward from Redwood City. Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CDA31070  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  UC1755115  Bromus catharticus Dean W. Taylor 1988-3-30 9492 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
  JEPS128397  Bromus diandrus Adam C. Schneider 2013-5-17 141 San Mateo Crystal Springs Reservoir Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH4929  Bromus hordeaceus John Rawlings 2010-4-28 1091 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  POM286725  Bromus hordeaceus Lyman Benson 1931-4-26 2757 San Mateo Behind Stanford University. Corte Madre Creek. Santa Cruz Mtn. Range Comment
  JROH4933  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4937  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  CAS-BOT-BC162228  Bromus maritimus Roxana S. Ferris 1920-4-27 189 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo Point. 0 Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  CAS-BOT-BC161750  Bromus rubens Fred Hemphill 1973-5-14 811 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  RSA187306  Bromus stamineus John H. Thomas 1961-8-27 9697 San Mateo Colma. near intersection of El Camino Real and F Street. 46 Comment
  JROH4960  Bromus sterilis W. H. Lennihan 1990-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, 50 yards to r. on path, r. side of path on edge, just next to 10-12 foot Sambucus mexicana. 111 Comment
  JROH4970  Bromus vulgaris W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek trail. Comment
  POM277332  Bromus vulgaris Lyman Benson 1937-7-15 8452 San Mateo Upper San Francisquito Creek. Santa Cruz Mt. Range. 244 Comment
  CAS-BOT-BC233710  Buddleja davidii John H. Thomas 1968-12-18 14873 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  CHSC81474  Cakile maritima Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Rockaway Beach, Pacifica. 0 Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  CAS-BOT-BC36954  Cakile maritima var. maritima Reed Clark Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles north of Half Moon Bay. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  UC635366  Calandrinia ciliata Herbert L. Mason 1927-4-23 3691 San Mateo roadside between La Honda and Pescadero Creek Comment
  JROH1636  Callitriche marginata John H. Thomas 1970-4-4 15544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1640  Callitriche marginata John H. Thomas 1973-4-20 16578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1638  Callitriche marginata D. E. Breedlove 1971-5-3 19323 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  CAS-BOT-BC85765  Calocedrus decurrens George Oberlander 1949-9-25 397 San Mateo San Francisco Watershed Reserve - Valley between Fiefield and Sawyer Ridges Comment
Read comments
Aug 28 2018
  JEPS61617  Calochortus albus W. L. Jepson 1922-3-19 9533 San Mateo back of Millbrae; Buriburi Ridge Comment
  JROH4595  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  UC575678  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi w Stanford University Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492207  Calochortus albus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1698 San Mateo Canyonside, Redwood Belt, Santa Cruz Mts., 3 miles west of Woodside Comment
  CAS-BOT-BC492217  Calochortus albus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  SEINET12044768  Calochortus albus G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo Alpine Rd near Corte Madera Cr Comment
  JROH4625  Calochortus argillosus John Hunter Thomas 1977-6-7 18734 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4636  Calochortus luteus John H. Thomas 1976-5-26 18154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC119756  Calochortus luteus Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  SEINET12044176  Calochortus luteus L. S. Rose 1933-1 33255 San Mateo Crystal Springs Lake Comment
  SEINET3885475  Calochortus luteus Lewis S. Rose 1931-5-24 23 San Mateo Redwood City.; 0 Comment
  UC729636  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo near La Honda grade; Santa Cruz Mts. 182 Comment
  JROH572  Calycadenia multiglandulosa John Hunter Thomas 1986-6-9 24094 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM129524  Calystegia purpurata A. D. E. Elmer 1903-06 4299 San Mateo Pescadero Creek Comment
  RSA10276  Calystegia purpurata H. A. Barker 1927-5-14 676 San Mateo North of Half Moon Bay. Comment
  SJSU8769  Calystegia purpurata D. D. Kohler 1963-5-18 116 San Mateo Moss Beach c. 5 mi N of Half Moon Bay Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  JROH1841  Calystegia purpurata subsp. purpurata John H. Thomas 1968-5-22 14457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224647  Calystegia purpurata subsp. purpurata Mary Helen Kelson 1956-6-2 229 San Mateo Page Mill Road, 3 miles from Skyline Boulevard 213 Comment
  RSA60634  Calystegia soldanella I. L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Comment
  RSA130152  Calystegia soldanella Roxana S. Ferris 1921-5-29 2187 San Mateo New Years Pt. Comment
  CAS-BOT-BC436445  Calystegia subacaulis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain, east of quarry Comment
  CAS-BOT-BC436451  Calystegia subacaulis Paul Arnaud 1941-4-28 s.n. San Mateo In back of San Carlos Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC224347  Calystegia subacaulis subsp. subacaulis A. A. Heller 1907-5-23 8557 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  POM171567  Camissonia cheiranthifolia subsp. cheiranthifolia R. L. Pendleton 1907-4-20 586 San Mateo Lake Merced 30 Comment
  CHSC57089  Camissonia cheiranthifolia subsp. suffruticosa Steven Triano 1988-5-24 217 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Light Station. 24 Comment
  POM181721  Camissonia ovata H. F. Copeland 1928-2-26 78 San Mateo Montara Comment
  RSA187227  Camissonia ovata John H. Thomas 1955-4-6 4839 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 30 Comment
  HSC16511  Camissonia ovata P. A. Murphy 1965-4-12 33 San Mateo 2 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  SEINET10463019  Campanula prenanthoides Wolf 1927-7-20 WOLF 646 San Mateo LA HONDA GRADE Comment
  SEINET10463045  Campanula prenanthoides Randall 1907-6-29 RANDALL 17 San Mateo King's Mountain Road Comment
  SEINET3406227 Image available Campanula prenanthoides Lewis S. Rose 1933-7-25 33311 San Mateo Kings Mountain 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-BC37657  Cardamine californica W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula. By bridge, upper Pescadero Creek. Comment
  CAS-BOT-BC37674  Cardamine californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains. From Trillium Gulch. 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
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  CAS-BOT-BC37665  Cardamine californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains. Above Fern Rock. Comment
  POM176891  Cardamine californica var. integrifolia W. R. Dudley 1893-2-18 s.n. San Mateo La Honda. Santa Cruz Peninsula. Comment
  POM176892  Cardamine californica var. integrifolia W. R. Dudley 1894-3-28 s.n. San Mateo By Corte de Madera Creek below McDonough s Ranch. Santa Cruz Peninsula. Comment
  POM272918  Cardamine californica var. integrifolia Lyman Benson 1928-4-21 107 San Mateo N end Searsville Ridge; Town: Stanford University; Mt. Range: Santa Cruz; River: San Francisquito Creek. Comment
  JROH5678  Cardamine hirsuta John Rawlings 2015-3-3 1313 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 8 125 Comment
  CAS-BOT-BC37985  Cardamine oligosperma John H. Thomas 1961-5-14 9372 San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1504  Cardamine oligosperma John Hunter Thomas 1991-4-11 24982 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  POM202951  Cardamine oligosperma Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UCSB18657  Cardamine oligosperma Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC166949  Cardamine oligosperma Peter Rubtzoff 1977-6-7 9027 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CDA6871  Carduus pycnocephalus Wm. Davis 1962-4-24 San Mateo Gorman Hay Barn, Tanforan Race Track, San Bruno. 0 Comment
  POM290232  Carex Lyman Benson 1930-5-1 2065 San Mateo Stanford University. 91 Comment
  CAS-BOT-BC19322  Carex barbarae John Thomas Howell 1938-5-1 13780 San Mateo Near South San Francisco. Comment
  JROH4314  Carex barbarae John H. Thomas 1974-5-19 17384 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19326  Carex barbarae Walter Knight; Irja Knight 1965-4-24 s.n. San Mateo San Bruno Mountain. East end of mountains adjacent to Frontage Road next to US 101 Highway at north city limits of SSF. Comment
  CAS-BOT-BC19327  Carex barbarae Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Frontage Road north City Limits of South San Francisco. Comment
  CAS-BOT-BC19329  Carex barbarae Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry. Comment
  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
  CAS-BOT-BC176396  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC18930  Carex densa LeRoy Abrams 1902-5-11 2444 San Mateo Crystal Springs. Comment
  CAS-BOT-BC18944  Carex densa Margaret A. Barry 1938-5-8 s.n. San Mateo On Coal Mine Ridge. Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC2048919  Carex globosa Neal Kramer 2016-4-3 2163 San Mateo Pedro Point Headlands Comment
  JROH4345  Carex gracilior John Rawlings 2010-5-10 0987 San Mateo Jasper Ridge Biological Preserve, Stanford University. About five feet north (lakeside) of Leonard's bridge. 107 Comment
  CAS-BOT-BC21816  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6056 San Mateo Near Pescadero. Comment
  CAS-BOT-BC21812  Carex harfordii George Thomas Oberlander 1950-4-23 847 San Mateo Cahill Ridge. Comment
  CAS-BOT-BC21819  Carex harfordii W. R. Dudley 1925-6-12 s.n. San Mateo Pescadero Creek below Peters Creek. Comment
  JROH4354  Carex nudata John Rawlings 2012-5-15 1113 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few feet downstream of the low-flow crossing, northern edge of San Francisquito Creek. 80 Comment
  CAS-BOT-BC176407  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  UC1055830  Carex obnupta Frank W. Gould 1939-5-6 655 San Mateo 13 mi n Santa Cruz County line (on coast highway) 15 Comment
  CHSC109977  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
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Jan 26 2018
  CAS-BOT-BC117647  Carex serratodens Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside. Comment
  JROH4357  Carex serratodens John H. Thomas 1968-5-3 14443 San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of ridge in serpentine grasslands. Comment
  SJSU15817  Carex serratodens John Rawlings, Ken Hickman 2016-7-21 1902 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
  SEINET7547018  Carex serratodens C. F. Baker 1902-1 811 San Mateo Crystal Springs Lake Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  RSA100974  Carex subbracteata G. Oberlander 1950-4-22 633 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SBBG47544  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco 15 Comment
  CAS-BOT-BC116817  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  UC836649  Carex tumulicola W. R. Dudley 1910-5-26 San Mateo near Black Mt. (Coal Mine Ridge) Comment
  CDA20504  Carthamus creticus J. Beall 2004-8-6 PDR 1329641 San Mateo San Francisco Bay Area; at 60 Langley Hill Rd in La Honda. 0 Comment
  LA209094  Castilleja affinis A. A. Heller; 1907-4-20 8442 San Mateo Near Lake Merced 60 Comment
  POM15426  Castilleja affinis C. F. Baker 1903-4-12 505 San Mateo San Gregorio. Comment
  POM283662  Castilleja affinis Lyman Benson 1930-5-3 2094 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  SEINET12288585  Castilleja affinis Cummings, McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  UCSC000665  Castilleja affinis H. S. Yates 1935-3-2 5010 San Mateo 0.5 mile S.E. of Pigeon Pt. Pigeon Pt - Santa Cruz 30 Comment
  JEPS88798  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-6-29 7851 San Mateo ca .33 mi s Pescadero State Beach Comment
  JROH3941  Castilleja affinis subsp. affinis John H. Thomas 1969-6-4 15109 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS88800  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  UCSC006159  Castilleja ambigua Randall Morgan 1999-7-12 3588 San Mateo ca. 1+ mile north of Bean Hollow State Beach Comment
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. 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
  UC1012339  Castilleja exserta F. W. Pennell and D. D. Keck 1940-5-15 25418 San Mateo e of upper Crystal Springs Lake (sw of San Mateo); Crystal Springs Lake 60 Comment
  SJSU15800  Castilleja exserta subsp. latifolia Toni Corelli 2010-6-6 680 San Mateo Montara State Beach. Bluff top west of Highway 1 14 Comment
  UC150065  Castilleja foliolosa L. R. Abrams 1904-4-10 San Mateo near Crystal Lake Comment
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Mar 12 2009
  RSA297192  Castilleja franciscana R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4554 San Mateo At the summit of the divide between La Honda Creek and Pescadero Creek, on the road from La Honda and San Mateo County Memorial Redwood Park. 305 Comment
  JROH4002  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1980-5-6 19930 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4010  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37774  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-24 3608 San Mateo Woodside Comment
  UC1012134  Castilleja rubicundula subsp. lithospermoides F. W. Pennell and D. D. Keck 1940-5-15 25413 San Mateo above Redwood City (Emerald Lake); Emerald Lake 45 Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  UCR122629  Castilleja subinclusa subsp. franciscana George K. Helmkamp, E. A. Helmkamp 2001-6-2 6789 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JEPS18909  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5452 San Mateo just w Crystal Springs Lake, upper south lake (along Skyline Blvd (Calif Hwy 5), 3.2 mi n of its junction with the Kings Mtn. road (not the La Honda road)) 594 Comment
  JEPS47422  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-15 1420 San Mateo 0.4 mi above Tunitas Road junction with the Lobitos Creek cut-off road (along Tunitas Road, about 4.5 mi from State Hwy 1) Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  JEPS34314  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 A San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt); San Pedro Valley, San Pedro Mt. 60 Comment
  JEPS6924  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4557 San Mateo 3.3 mi s Pescadero (along Calif Hwy 1, road bank just s of bridge across Arroyo de los Frijoles) Comment
  JEPS70084  Castilleja wightii L. R. Heckard 1972-4-16 2904 San Mateo e of Pilarcitos Lake Comment
  JEPS8516  Castilleja wightii Elsie M. Zeile 1925-3-22 San Mateo Colma Canyon Comment
  JEPS88833  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo hills just s Rockaway Beach Comment
  JEPS79097  Castilleja wightii L. R. Heckard 1980-5-3 5191 San Mateo s of Guadalupi Parkway, San Bruno Mt. (on slopes about Fern Rock, n part of San Bruno Mt., in upper end of drainage of Guadalupi Valley); San Bruno Mt., Guadalupi Valley, Fern Rock 182 Comment
  RSA189726  Castilleja wightii Noel Holmgren, James L. Reveal 1966-6-5 2632 San Mateo Skyline Boulevard (California 35), 0.25 mile south of junction with California 1. Comment
  RSA517381  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1330 San Mateo Along old country road over San Pedro and Montara mountains; northern flank of San Pedro Mt. 152 Comment
  SEINET8212805  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  JROH1522  Caulanthus lasiophyllus John H. Thomas 1961-4-4 9044 F San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area near Westridge end of ridge Comment
  CAS-BOT-BC40393  Caulanthus lasiophyllus Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountains. South Power Line Ridge. Comment
  CAS-BOT-BC47931  Ceanothus Fred Hemphill 1973-4-15 675 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC51596  Ceanothus oliganthus var. sorediatus H. A. Borthwick 1920-4-21 74 San Mateo Strawberry Bend, Corte Madera Cr. Comment
  CAS-BOT-BC51597  Ceanothus oliganthus var. sorediatus Helen M. Edwards 1917-4-1 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC51599  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-12-13 s.n. San Mateo Above Prestou's, La Honda road Comment
  CAS-BOT-BC51244  Ceanothus papillosus R. Hoffough 1929-5-8 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC52274  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52284  Ceanothus thyrsiflorus L. R. A. 1901-4-20 1549 San Mateo King's Mountain Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  JEPS85551  Ceanothus thyrsiflorus Craig Dremann 1986-8-30 322 San Mateo W of La Honda (Hwy 84 (Woodside-La Honda rd), 100 ft W of mile marker 6.68) Comment
  UC1073367  Ceanothus thyrsiflorus George B. Rossbach 1955-3-26 342 San Mateo San Pedro Point, northwest end Montara Mountains Comment
  UC1537016  Ceanothus thyrsiflorus Gordon H. True Jr. 1937-3-31 615 San Mateo on Salada Beach Road 60 Comment
  UCSB3905  Ceanothus thyrsiflorus var. griseus Walker, Clifford 1954-4-20 San Mateo Woodside Rd. 1 mi. E. Woodside 2 Comment
  SBBG64339  Ceanothus thyrsiflorus var. thyrsiflorus C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  JROH589  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH591  Centaurea calcitrapa John Hunter Thomas 1977-6-16 18768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH595  Centaurea calcitrapa John Hunter Thomas 1991-11-21 25108 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  CAS-BOT-BC274597  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont - Crystal Springs Rd. Comment
  HSC23938  Centaurea calcitrapa Mary Katherine Wicksten 1971-8-19 199 San Mateo Huddart Park by horse ring Comment
  CAS-BOT-BC277124  Centaurea melitensis J. H. Thomas 1958-6-11 7224 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  JEPS127866  Centaurea melitensis Adam C. Schneider 2013-5-17 181 San Mateo Crystal Springs Reservoir Comment
  JROH598  Centaurea melitensis John H. Thomas 1962-6-10 9909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176536  Centaurea melitensis John H. Thomas 1963-6-23 10170 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  RSA101008  Centaurea melitensis G. Oberlander 1950-5-6 895 San Mateo Near San Anreas Lake, San Francisco Watershed Reserv Comment
  CAS-BOT-BC277228  Centaurea solstitialis Lawrence Beane 1949-5-30 399 San Mateo Atherton Comment
  JROH609  Centaurea solstitialis John Hunter Thomas 1984-9-6 23477 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC625427  Centaurium davyi L. R. Abrams and I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point Comment
  UCR123143  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-6-2 6795 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  UC35457  Centaurium trichanthum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  JEPS23530  Centranthus ruber J. H. Thomas 1958-11-9 7503 San Mateo along El Camino Real at northern end San Carlos 30 Comment
  CAS-BOT-BC279333  Centromadia pungens subsp. pungens Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JEPS20332  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd. San Mateo Comment
  SD30855  Centromadia pungens subsp. pungens Edith A. Purer 1933-8-4 5399 San Mateo Along Bayshore Highway Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388391  Cerastium glomeratum Fred Hemphill 1973-3-17 618 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  CAS-BOT-BC388395  Cerastium glomeratum Walter Knight; Irja Knight 1965-3-21 948 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  JROH3624  Cercocarpus betuloides var. betuloides John H. Thomas 1969-5-28 15079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3627  Cercocarpus betuloides var. betuloides John Hunter Thomas 1981-7-24 20730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4770  Chamaesyce serpens A. Roach 1970-10-22 San Mateo Southern Pacific Railroad, Menlo Park. 0 Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  RSA149154  Chenopodium californicum John H. Thomas 1961-5-13 9338 San Mateo Coastal sand dunes at Franklin Point. Comment
  SEINET5765025 Image available Chenopodium macrospermum var. halophilum L. R. Abrams, I. L. Wiggins 1930-1 I 78 San Mateo Salada Beach Comment
  JROH5858  Chenopodium rubrum var. humile Toni Corelli 2003-11-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; dry lake bed, Corte Madera Creek delta Comment
  CAS-BOT-BC389739  Chlorogalum pomeridianum J. Lovelle 1973-7-15 10 San Mateo Donald Pk. Comment
  RSA0105084  Chlorogalum purpureum T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3519 San Mateo Central Coast: Pebble Beach State Beach Bay, 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
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Aug 30 2018
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  CDA20080  Chondrilla juncea J. Beall 2002-11-18 PDR P 205608 San Mateo San Francisco Bay Area; across the street from 3975 Pacific Blvd. 0 Comment
  SEINET4182874  Chorizanthe cuspidata A. A. Heller 1906-6-8 8383 San Mateo Near Ocean View, San Francisco Comment
  JROH3223  Chorizanthe diffusa W. R. Dudley 1910-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC252659  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 N.F. 427 Comment
  RSA152079  Chrysanthemum coronarium John H. Thomas 1961-5-7 9321 San Mateo San Bruno Mountain, western end of mountain 244 Comment
  RSA130687  Chrysanthemum leucanthemum W. R. Dudley 1908-6-19 s.n. San Mateo Hills N of Jersey Farm Dairy. W of Baden Comment
  SBBG39512  Chrysolepis chrysophylla L. S. Rose 1970-7-15 San Mateo Kings Mtn 914 Comment
  CAS-BOT-BC285234  Cichorium intybus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo San Bruno Mountains. In Guadalupe Valley Comment
  JROH628  Cirsium brevistylum John H. Thomas 1961-6-7 9535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18503  Cirsium brevistylum C. B. Wolf 1927-7-14 617 San Mateo Summit of Kings Mt. Comment
  CAS-BOT-BC100943  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100944  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  RSA0021449  Cirsium lanceolatum E. A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley. Near Baden Station Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  UC306688  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280527  Cirsium quercetorum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Top of Quarry 4 Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285861  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285865  Cirsium vulgare Cherie Wetzel 1969-7-28 996 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC285871  Cirsium vulgare Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  SD30683  Cirsium vulgare Edith A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley, near Baden Station. Comment
  SJSU15228  Clarkia amoena subsp. whitneyi Toni Corelli 2012-7-12 804 San Mateo Wavecrest, north of Redondo Road, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC163969  Clarkia purpurea subsp. quadrivulnera H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Serpentine. Along middle of S. side Comment
  UC917332  Clarkia purpurea subsp. quadrivulnera W. A. Harvey and J. M. Tucker 1948-6-29 1710 San Mateo just w Highway 5 (Skyline Boulevard) (beside road to Portola State Park) Comment
  UC1071885  Clarkia rubicunda H. and M. Lewis 1951-6-28 861 San Mateo neaer Half Moon Bay (1.3 mi n of bridge (35.32C - 3.72) on Highway 1) Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC625368  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo about 1/2 mi n Light House; Pigeon Point Comment
  UCR3564  Clarkia rubicunda Wm. Horn Jr. 1963-8-26 630826- 03 San Mateo 1.5 mi. east of Tunitas Beach, on Tunitas Creek Road 76 Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  SD56674  Clarkia rubicunda Darley F. Howe 1963-7-31 3648 San Mateo 3 miles North of Pacifica on #1, on sea bluff. Comment
  SEINET12189237  Clarkia rubicunda Unknown 1932-1 9247 San Mateo near Pescadero Comment
  UCD104827  Clarkia rubicunda H. F. Copeland 1929-7-4 s.n. San Mateo La Honda Grade. Comment
  RSA18442  Clarkia rubicunda subsp. blasdalei Carl B. Wolf 1927-6-29 566 San Mateo 3 miles south of San Gregorio. Comment
  JROH3038  Clarkia unguiculata Toni Corelli 2003-5-28 260 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 21, below Searsville Lab 109 Comment
  CAS-BOT-BC165603  Clarkia unguiculata C. F. Leithold 1894-8-13 s.n. San Mateo Devil's [Canon] Canyon, branch of Pescadero & Mill Cr., Black Mt. Comment
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  CAS-BOT-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  CAS-BOT-BC439805  Claytonia perfoliata Ned Cahill 1974-4-29 168 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC439992  Claytonia perfoliata subsp. mexicana John H. Thomas 1964-4-30 10363 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC443656  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1950-4-30 1962 San Mateo Montara 15 Comment
  JROH3343  Claytonia perfoliata subsp. perfoliata John H. Thomas 1963-5-15 10088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3412  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM151213  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  JROH2873  Clinopodium douglasii John H. Thomas 1970-1-1 15499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD18535  Clinopodium douglasii Roman Gankin 1950-6-25 2 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. Comment
  CAS-BOT-BC499370  Clintonia andrewsiana J. H. Thomas 1954-6-11 4269 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  CAS-BOT-BC499401  Clintonia andrewsiana W. R. Dudley 1989-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  CAS-BOT-BC499405  Clintonia andrewsiana David D. Keck 1932-6-1 1797 San Mateo 1 mile west of Skyline Blvd. on La Honda road, Santa Cruz Mountains Comment
  SEINET8495448 Image available Clintonia andrewsiana L. M. Henry, M. E. Springer 1946-7-21 369 San Mateo La Honda Comment
  POM14815  Collinsia franciscana C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  RSA104881  Collinsia heterophylla E. F. Sprague 1956-5-28 s.n. San Mateo 2 miles below Skyline Drive on E. La Honda Road. Comment
  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
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  JROH4023  Collinsia sparsiflora var. collina John Hunter Thomas 1992-4-9 25135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM14894  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake. Comment
  HSC23940  Collomia heterophylla Mary Katherine Wicksten 1971-7-12 166 San Mateo Huddart Park; beside Archery Trail above Archery Flat Comment
  RSA681681  Comarostaphylis diversifolia subsp. diversifolia Annuschka Deb 1989-8-18 379 San Mateo Woodside. Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  RSA0059768  Convolvulus subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC286205  Conyza canadensis R. E. Frenkel 1963-12-7 323 San Mateo San Francisco Water District, 1.5 miles north of Halfmoon [Half Moon] Bay Club Comment
  CAS-BOT-BC286211  Conyza canadensis George Oberlander 1949-8-20 360 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH4764  Corallorhiza striata John Hunter Thomas 1985-4-22 23540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11859850  Corethrogyne californica Unknown 1932-5-8 9109 San Mateo above Spring Valley Lakes Comment
  CAS-BOT-BC101479  Corethrogyne filaginifolia Miss Eastwood 1896-6-1 s.n. San Mateo Spring Lake Comment
  CAS-BOT-BC101480  Corethrogyne filaginifolia J. I. McMurphy 1906-5-8 s.n. San Mateo Between Crystal Springs & Belmont Grade Comment
  POM88007  Corethrogyne filaginifolia var. californica L. R. Abrams 1902-5-11 2459 San Mateo Crystal Springs. Comment
  RSA187486  Cornus californica John H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. Alt. about 350 feet. Comment
  CAS-BOT-BC210352  Cornus sericea J. I. McMurphy 1906-5-11 22 San Mateo Santa Cruz Peninsula. Los Trancos Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC210356  Cornus sericea George Oberlander 1950-5-6 897 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  UC1191448  Coronopus didymus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1594 San Mateo at mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC190042  Cortaderia jubata Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Along Guadalupe Canyon Parkway east of Northeast ridge. 60 Comment
  JROH1331  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods Comment
  CAS-BOT-BC141554  Cotoneaster pannosus Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo Lower Kamchatka - San Bruno Mountain Comment
  CAS-BOT-BC344964  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  UCR255717  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  JROH660  Cotula coronopifolia John Hunter Thomas 1981-4-5 20270 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA18353  Cotula coronopifolia C. B. Wolf 1927-1-29 464 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UCR141420  Cotula coronopifolia June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  UC1119273  Cotula coronopifolia G. E. Sindel 1935-7-25 313 San Mateo mouth Pescadero Creek Comment
  UC19144  Crassula aquatica J. Burtt Davy 1893-6-22 San Mateo n.w. end Lake Pilarcitos Comment
  RSA100981  Crassula aquatica G. Oberlander 1949-8-20 374 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  JROH3650  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3652  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH665  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1962-6-10 9910 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1960  Croton setiger John Hunter Thomas 1983-7-20 22895 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4981  Crypsis schoenoides John Hunter Thomas 1980-11-27 20193 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta Comment
  JROH1357  Cryptantha flaccida J. I. McMurphy 1911-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1369  Cryptantha micromeres John Rawlings 2011-6-14 1078 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b between serpentine contact and large rock at uphill side of trail that marks the Piperia elongata site. 143 Comment
  JROH1383  Cryptantha microstachys John Rawlings 2012-5-25 1107 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  RSA92810  Cryptantha microstachys P. H. Raven 1950-4-16 1801 San Mateo Summit ridge, San Bruno Mountains. 244 Comment
  JROH1387  Cryptantha torreyana var. pumila John Rawlings 2009-5-7 1067 San Mateo Jasper Ridge Biological Preserve, Stanford University. North edge of Trail 9. 162 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-BC80523  Cupressus arizonica Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo grassland above Harold Avenue, Brisbane 121 Comment
  CAS-BOT-BC80790  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo About 1/2 mi below Skyline Blvd. on Half Moon Bay Road toward Crystal Springs Reservoir. Comment
  CAS-BOT-BC80791  Cupressus macrocarpa John Thomas Howell 1957-5-8 32236 San Mateo Skyline Blvd. w. of San Bruno. Comment
  RSA128701  Cupressus macrocarpa J. T. Howell 1957-5-8 s.n. San Mateo Skyline Blvd. west of San Bruno Comment
  POM7529  Cuscuta pentagona C. F. Baker 1903-10-15 1761 San Mateo Stanford University. Comment
  RSA130964  Cuscuta salina L. R. Abrams 1906-9-30 s.n. San Mateo Cooley's Landing Comment
  UCD127346  Cyclospermum leptophyllum John Thomas Howell 1975-9-13 51507 San Mateo Hillside Street just west of El Camino, Burlingame. Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CAS-BOT-BC287339  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  JEPS88622  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City Comment
  JROH5003  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5007  Cynodon dactylon John Hunter Thomas 1988-6-6 24512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1395  Cynoglossum grande John Hunter Thomas 1988-4-7 24384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  SD38500  Cynoglossum grande Edith A. Purer 1933-4-18 3649 San Mateo Above Emerald Lake Comment
  UC1206465  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Searsville Comment
  UCD166157  Cynoglossum grande Jack Major; M. Forde and S. Bamberg 1962-4-3 740 San Mateo Along road near Scott Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC217971  Cynosurus echinatus Elizabeth McClintock; Paul Reeberg 1989-6-18 s.n. San Mateo Saddle Area, San Bruno Mountains 213 Comment
  JROH4379  Cyperus eragrostis John Hunter Thomas 1978-5-23 19224 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4384  Cyperus eragrostis John Hunter Thomas 1983-7-7 22817 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just below dam. Comment
  JROH4387  Cyperus eragrostis John H. Thomas 1968-10-29 14855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1100540  Cyperus eragrostis Malcolm A. Nobs and S. Galen Smith 1949-8-16 1586 San Mateo ca. 1 mi. s. Half Moon Bay Comment
  SEINET3909444  Cyperus eragrostis K. Thorne, J. Chandler 1986-7-25 4926 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach.; 0 Comment
  JROH4395  Cyperus erythrorhizos John Hunter Thomas 1979-9-9 19714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC133770  Cypripedium fasciculatum Miss. Bolton 1911-5-6 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UC673588  Cypripedium fasciculatum Monica Deitrich March 1927 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC136518  Cypripedium montanum Wm. Cranston 1915-4-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC435184  Cypselea humifusa George Oberlander 1949-8-20 372 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCSB11177  Cytisus scoparius Connelly, Dianne 1962-4-21 San Mateo Corner of Milbrae and Sky Line Boulevard; 12 miles southeast of San Francisco 121 Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  JROH5022  Dactylis glomerata John Hunter Thomas 1982-6-7 21031 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5031  Dactylis glomerata W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, down trail to meadow, turn left -- all along road before bridge over creek. Comment
  RSA101030  Dactylis glomerata G. Oberlander 1950-5-21 960 San Mateo Under Douglas fir, Cahill Ridge, San Francisco Watershed Reserve Comment
  UCD60466  Danthonia californica A. A. Beetle 1942-6-11 3595 San Mateo 2 miles north of South San Francisco. Comment
  RSA6303  Danthonia californica var. americana D. D. Keck 1932-5-6 1479 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  UC174170  Deinandra corymbosa Katharine Brandegee 1885-1 San Mateo Moss Beach Comment
  UC897706  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  OBI16296  Deinandra corymbosa Robert F. Hoover 1966-8-27 9942 San Mateo Halfmoon Bay Comment
  CAS-BOT-BC299207  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1893-5-17 s.n. San Mateo Near Milbrae Comment
  CAS-BOT-BC299217  Deinandra corymbosa subsp. corymbosa H. D. Geis 1901-10-1 s.n. San Mateo Spanishtown Comment
  CAS-BOT-BC9221  Delphinium californicum George Thomas Oberlander 1949-6-25 241 San Mateo Pilarcitos Canyon Comment
  POM270770  Delphinium californicum Lyman Benson 1930-5-12 s.n. San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC9209  Delphinium californicum subsp. californicum Adolph Daniel Edward Elmer 1903-7-1 4548 San Mateo Pilarcitos Stone Dam Comment
  JROH3424  Delphinium californicum subsp. californicum Lyman Benson 1930-5-12 2127 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH3427  Delphinium californicum subsp. californicum John H. Thomas 1967-5-31 12926 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9229  Delphinium decorum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains, between April Brook and Radio Road Comment
  SEINET5546959  Delphinium decorum H. S. Gentry 1931-1 80 San Mateo Collected 1 mile SE of Holy Cross Cemetery. Comment
  UC854136  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC10287  Delphinium hesperium W. R. Dudley 1905-6-19 s.n. San Mateo Above Alpine School House, Black Mtn. Comment
  CAS-BOT-BC10289  Delphinium hesperium J. H. Thomas 1949-5-29 564 San Mateo Alpine Road, about 1 mile beyond intersection with Mt. Home Road, going west Comment
  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
  RSA18292  Delphinium nudicaule Carl B. Wolf 1927-6-21 425 San Mateo East slope of Kings Mt. Comment
  JROH3452  Delphinium patens subsp. patens John H. Thomas 1972-4-1 16050 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3461  Delphinium patens subsp. patens John Hunter Thomas 1991-4-11 24987 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116533  Delphinium patens subsp. patens P. H. Arnaud 1941-4-21 s.n. San Mateo Hills - back of Hesler farm, Redwood City Comment
  SJSU1084  Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside hills 3 mi W of Woodside 182 Comment
  CAS-BOT-BC7886  Delphinium variegatum K. Hofpaugh 1929-5-8 422 San Mateo Crystal Lake, Skyline Blvd. near San Francisco Comment
  CAS-BOT-BC7888  Delphinium variegatum LeRoy Abrams 1902-5-4 2410 San Mateo not specified Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  CAS-BOT-BC192599  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles Comment
  JROH5057  Deschampsia danthonioides John Rawlings 2007-5-2 1019 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off (south side) Road F at edge of chaparral in vernally wet area. 167 Comment
  RSA475251  Deschampsia elongata Lyman Benson 1937-7-8 8445 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 Comment
  CAS-BOT-BC904  Dicentra chrysantha E. M. Zeile 1921-11-19 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC500900  Dichelostemma capitatum H. A. Dutton 1900-2-18 s.n. San Mateo Woodside Serpentine along N. slope Comment
  CAS-BOT-BC500928  Dichelostemma capitatum Ned Cahill 1974-4-23 164 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12044682  Dichelostemma capitatum W. R. Dudley 1894-1 s.n. San Mateo San Mateo below Dam, Santa Cruz Peninsula Comment
  UCSB18428  Dichelostemma capitatum subsp. capitatum Muirhead, M. 1964-4-17 San Mateo Crocker instate; Hillsborough, California 83 Comment
  CAS-BOT-BC502168  Dichelostemma congestum Fred Hemphill 1973-4-22 693 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JEPS125950  Dichondra donelliana D. W. Taylor 2000-7-20 17532 San Mateo Montara Mountain, along dirt road 1 mile W from North Peak Comment
  CHSC56594  Digitalis purpurea Steven Triano 1988-5-24 168 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  CAS-BOT-BC209019  Digitaria sanguinalis Lewis S. Rose 1965-9-20 65108 San Mateo Trousdale Dr. & California Dr. Burlingame 9 Comment
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  CAS-BOT-BC150448  Diplacus aurantiacus L. R. Abrams 1915-11-1 5480 San Mateo Searsville Ridge Comment
  CAS-BOT-BC150454  Diplacus aurantiacus Daniel Cohen 1953-5-9 89 San Mateo La Honda Road 1/2 way to Skyline Drive on the east slope of the Santa Cruz Mountains Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  JEPS47163  Dirca occidentalis W. L. Jepson 1922-3-19 9536 San Mateo Lake San Andreas Comment
  POM222804  Dirca occidentalis S. S. Berry 1909-2-27 s.n. San Mateo Trail to the Hermit's (Redwood Canyon) 107 Comment
  UCD116838  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N. end of Crystal Springs Lake. 121 Comment
  SEINET7900488 Image available Dirca occidentalis John H. Thomas 1958-1 6980 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC195717  Distichlis spicata John H. Thomas 1963-7-19 10194 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 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
  POM287492  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-28 2609 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JROH1507  Draba verna J. H. Thomas 1980-4-23 19896 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road below dam Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC159550  Drymocallis glandulosa var. glandulosa Alice Eastwood 1912-6-10 327 San Mateo Crystal Springs Comment
  CAS-BOT-BC159537  Drymocallis glandulosa var. glandulosa W. R. Dudley 1894-5-30 s.n. San Mateo Near San Carlos - Santa Cruz Peninsula Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH43  Dryopteris arguta L. Fletcher 1986-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC1063782  Dryopteris arguta C. M. Belshaw 1935-1-25 1460 San Mateo 2.8 mi w Woodside; Santa Cruz Quadrangle 457 Comment
  CAS-BOT-BC67885  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  RSA693711  Dryopteris arguta E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  UCR240611  Dudleya T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3525 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC410867  Dudleya caespitosa Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  SD12572  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC428360  Dudleya farinosa C. F. Baker 1903-6-30 3440 San Mateo Pilarcitos Comment
  OBI25820  Dudleya farinosa Robert Honda 1970-5-17 21 San Mateo Coyote Point Comment
  JROH5084  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5087  Echinochloa crus-galli John H. Thomas 1976-10-16 18416 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream. Comment
  JROH5095  Echinochloa crus-galli John Hunter Thomas 1988-10-17 24596 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing on delta in lake Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA5627  Echium pininana T. C. Fuller 1967-8-23 16296 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  UCD61216  Ehrharta erecta Glen L. Holstein 1978-3-1 s. n. San Mateo Near Pescadero Point. Comment
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  CAS-BOT-BC112955  Eleocharis macrostachya George Thomas Oberlander 1950-5-6 922 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC113150  Eleocharis palustris Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In disturbed seep 600 feet SE of the Carter/Martin intersection, Guadalupe Hills, Daly City 68 Comment
  POM319918  Elymus glaucus Barbara Shervanick 1973-4-1 797 San Mateo San Bruno Mts.; first summit on Crocker Rd. Comment
  SEINET10554351  Elymus glaucus Peter H. Raven 1950-6-3 Raven 2232 San Mateo Roadside cut, Millbreae Avenue, Millbrae. Comment
  CAS-BOT-BC203686  Elymus glaucus subsp. glaucus H. A. Borthwick 1920-5-24 179 San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5113  Elymus glaucus subsp. glaucus John Rawlings 2010-5-20 0991 San Mateo Jasper Ridge Biological Preserve, Stanford University. On downhill side of Trail 12 in grassy opening west of intersection with Trail 10. 112 Comment
  JROH5963  Elymus glaucus subsp. glaucus John Rawlings 2017-5-24 2083 San Mateo Jasper Ridge Biological Preserve, Stanford University. SE corner of Sun Field Station along paved vehicle road to Sun Field Station loading zone 118 Comment
  CAS-BOT-BC203682  Elymus glaucus subsp. glaucus W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. On ridge by trail to Big Basin Comment
  JROH5114  Elymus glaucus subsp. virescens John Rawlings 2009-9-16 1017 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few yards uphill of Trail a, about 35 yards from the lower Trail a terminus, near a large rock outcrop at the serpentine contact. 91 Comment
  SJSU15223  Elymus glaucus subsp. virescens Toni Corelli 2011-5-23 705 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  CAS-BOT-BC235209  Elymus multisetus David D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  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
  JROH3042  Epilobium brachycarpum John H. Thomas 1971-8-7 16019 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  SJSU802  Epilobium canum subsp. canum M. B. Mirassou 1943-5-10 191 San Mateo near Pigeon Point Comment
  UCD105431  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Road, Cahill Ridge. 243 Comment
  HSC24034  Epilobium ciliatum subsp. ciliatum Mary Katherine Wicksten 1971-8-19 197 San Mateo Huddart Park Comment
  UCR121575  Epilobium ciliatum subsp. watsonii George K. Helmkamp, E. A. Helmkamp 1999-6-28 5007 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SJSU10677  Epilobium ciliatum subsp. watsonii H. L. Elliot 1958-5-31 118 San Mateo Hwy 1, 12 mi S of Halfmoon Bay Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  UCR253354  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC57598  Equisetum telmateia Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CHSC25149  Equisetum telmateia subsp. braunii R. N. Bowman 1971-4-5 9 San Mateo 10.7 mi. N.W. of Big Basin State Park office on Gazos Creek Rd., ca. 15 yds. W. of rd. along Streambed. 91 Comment
  JROH68  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM87718  Equisetum telmateia var. braunii L. R. Abrams 1902-3-16 2282 San Mateo Kings Mountain Comment
  JROH5145  Eragrostis mexicana subsp. virescens John Rawlings 2009-7-23 1027 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site 71 Comment
  SD37544  Erechtites argutus Edith A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  CAS-BOT-BC299889  Erechtites glomeratus L. R. Abrams 1926-5-26 11218 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC299890  Erechtites glomeratus John H. Thomas 1967-5-2 12805 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  SEINET12141700  Eremocarpus setiger E. A. Purer 1933-1 5513 San Mateo Skyline Blvd 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
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  JROH645  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC295078  Erigeron glaucus A. A. Heller 1907-4-20 8455 San Mateo Near Lake Merced Comment
  CAS-BOT-BC295094  Erigeron glaucus Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC295081  Erigeron glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Montara Mountains Comment
  SEINET11859443  Erigeron glaucus M. T. Doutt 1931-3-14 239 San Mateo along coast S of San Francisco Comment
  CAS-BOT-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC216128  Eriodictyon californicum Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon, San Bruno Mountain Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  JROH2728  Eriodictyon californicum John H. Thomas 1975-6-5 17938 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  SD38515  Eriodictyon californicum Edith A. Purer 1933-5-25 3650 San Mateo La Honda Grade Comment
  CAS-BOT-BC250543  Eriogonum gracile L. R. A. 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 Comment
  UC429743  Eriogonum gracile L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  JEPS111099  Eriogonum gracile Zoe Ellis Chandik 1993-7-25 San Mateo Along Hwy 280, E side near Farmhill Road.. Comment
  CAS-BOT-BC251984  Eriogonum latifolium John H. Thomas 1963-5-20 10126 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  UC1537277  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo cove 2 mi s Pescadero 15 Comment
  UCR240612  Eriogonum latifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3524 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-BC251971  Eriogonum latifolium Phillip C. Wheeler 1965-7-7 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC251975  Eriogonum latifolium Phillip C. Wheeler 1965-5-18 s.n. San Mateo Base of the mountain adjacent to Olivet Cemetery Comment
  SDSU6740  Eriogonum latifolium D. F. Howe 1962-7-26 3356 San Mateo 1.1 miles south of San Mateo-Santa Cruz Co. line Comment
  SEINET11938060  Eriogonum latifolium Unknown 1933-1 10382 San Mateo one mile down coast from Piscadero Comment
  SEINET11938061  Eriogonum latifolium E. A. Purer 1933-1 5379 San Mateo 2 mi S of Pigeon Point Comment
  SEINET11938062  Eriogonum latifolium M. T. Doutt 1931-1 602 San Mateo near Portola, along ocean Comment
  CAS-BOT-BC264777  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City 243 Comment
  POM165062  Eriogonum luteolum A. D. E. Elmer 1903-06 4309 San Mateo Belmont Comment
  POM193637A  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  RSA279684  Eriogonum luteolum James L. Reveal, John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, on oak covered hillsides south of San Francisquito Creek 183 Comment
  HSC17396  Eriogonum luteolum var. luteolum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake W of Redwood City 244 Comment
  JROH3227  Eriogonum luteolum var. luteolum John H. Thomas 1964-7-3 10441 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral on top of ridge Comment
  JROH3239  Eriogonum luteolum var. luteolum Carol Zabel 2003-6-23 50 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b. Comment
  JROH5849  Eriogonum luteolum var. luteolum Bill Kirsher 1990-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road F. Comment
  CAS-BOT-BC269004  Eriogonum nudum var. auriculatum Cherie Wetzel 1969-6-20 873 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  SD5712  Eriophyllum Ulysses S. Grant IV 1925-6-5 San Mateo Burlingame Comment
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Jul 10 2010
  CAS-BOT-BC304070  Eriophyllum confertiflorum Philip Wheeler 1965-5-12 s.n. San Mateo SW canyon below NBC towers, San Bruno Mt Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC301750  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  UC306665  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4897 San Mateo San Mateo Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
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Mar 6 2006
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  UC484306  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 mi s San Gregorio (hills near the ocean); ocean Comment
  JEPS121483  Erodium botrys Adam C. Schneider 2013-5-17 140 San Mateo Crystal Springs Reservoir Comment
  JROH2590  Erodium botrys John H. Thomas 1967-5-10 12838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2603  Erodium brachycarpum W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine ridge east of Searsville Reservoir. Comment
  JEPS121446  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-2-2 14 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC54820  Erysimum franciscanum Javier Penalosa 1963-3-30 2735 San Mateo San Bruno Mountains. North of Randolph Drive at Hillside Boulevard. In South San Francisco. 289 Comment
  CAS-BOT-BC54821  Erysimum franciscanum Javier Penalosa 1963-3-9 2669 San Mateo San Bruno Mountains. Slopes southeast of 1314 foot summit. 381 Comment
  RSA101845  Erysimum franciscanum G. B. Rossbach 1939-5-12 913 San Mateo 1.5 miles N of Sharp Park (Salada Beach) Comment
  RSA157747  Erysimum franciscanum John H. Thomas 1961-5-7 9316 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1034944  Erysimum franciscanum G. B. and R. P. Rossbach 1938-3-15 800 San Mateo rocky knolls and roadbank on e side of lake Crystal Springs Lake 106 Comment
  UC1034950  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo exposed crest of ridge one-half to one mi se highest peak; San Bruno Hills 358 Comment
  UC1084387  Erysimum franciscanum G. Thomas Robbins 1937-4-11 93 San Mateo meadow near Spring Valley Lakes (along road to Woodside) Comment
  UC534993  Erysimum franciscanum H. E. and S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes 152 Comment
  CAS-BOT-BC403534  Eschscholzia californica Le Roy Abrams 1902-5-11 2453 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403538  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403533  Eschscholzia californica Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH5930  Eschscholzia californica L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to the Siersville Lab on the west side of the lake Comment
  CAS-BOT-BC202734  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Los Trancos Creek, above Judge Allen's Comment
  CAS-BOT-BC202738  Euonymus occidentalis C. B. Wolf 1931-8-21 2333 San Mateo 1/2 mile above east base of La Honda Grade, Santa Cruz Mts. 243 Comment
  JROH1796  Euonymus occidentalis var. occidentalis Volney Rattan May s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UC1071566  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Santa Cruz Quad., Pescadero Creek Comment
  UC565994  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Pescadero Creek Santa Cruz Quad., Pescadero Creek 152 Comment
  CAS-BOT-BC166767  Euphorbia peplus Peter Rubtzoff 1977-4-14 8942 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  UC1536887  Eurybia radulina G. H. True Jr. 1937-7-31 829 San Mateo near, (Alpine Road near Skyline Blvd.) Skyline Blvd. 182 Comment
  POM308576  Euthamia occidentalis Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3241 San Mateo Coast, Highway 1. Comment
  CAS-BOT-BC210049  Festuca arundinacea Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH6209  Festuca bromoides John Rawlings 2013-3-31 1183 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 Comment
  CAS-BOT-BC278286  Festuca californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove Comment
  CAS-BOT-BC278351  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  CAS-BOT-BC278355  Festuca californica subsp. californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By road to Kings Mt near junction of trail from Tripp Store Comment
  CAS-BOT-BC278360  Festuca californica subsp. californica Catherine A. Toschi 1963-3-17 63 :50 San Mateo San Bruno Mountain. Northeast slope below radio station Comment
  JROH5179  Festuca elmeri John Rawlings 2005-5-11 1010 San Mateo Jasper Ridge Biological Preserve, Stanford University; between Trail 7 and Bird Trail, about 100 yards east of Hillside lab 151 Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC278480  Festuca idahoensis Elizabeth McClintock; Paul Reeberg 1989-5-16 s.n. San Mateo San Bruno Mountain. On ridge east of East Powerline, on south side of Southeast Ridge 274 Comment
  JROH5493  Festuca microstachys John Hunter Thomas 1986-5-8 24031 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5478  Festuca microstachys Duncan M. Porter 1960-4-18 642 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5500  Festuca myuros W. Lennihan 1989-3-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5502  Festuca myuros Stephen N. Turitzin 1976-3-7 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek Comment
  JROH5285  Festuca perennis John Hunter Thomas 1981-5-25 20635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC279050  Festuca rubra Elizabeth McClintock; Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. Upper slopes of Firth Canyon, above Brisbane 182 Comment
  JROH5297  Festuca temulenta John Rawlings 2007-5-30 1014 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of mowed area (fire truck turn around) near Goya Gate 192 Comment
  JROH246  Foeniculum vulgare Le Roy Abrams 1901-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH247  Foeniculum vulgare Toni Corelli 2005-8-1 297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road C, southwest of low flow crossing 82 Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  CHSC1548  Fragaria chiloensis G. Herrington 1930-5-1 San Mateo Moss Beach. Comment
  POM139629  Fragaria chiloensis A. D. E. Elmer 1903-04 4799 San Mateo San Pedro. Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457514  Fragaria vesca subsp. californica Josephine D. Randall 1907-6-8 33 / San Mateo Portola Valley, Santa Cruz Pennisula, Comment
  CAS-BOT-BC457520  Fragaria vesca subsp. californica Le Roy Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  CAS-BOT-BC166910  Frangula californica Peter Rubtzoff 1975-10-24 8428 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  CAS-BOT-BC52685  Frangula californica subsp. californica John H. Thomas 1961-5-7 9297 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3544  Frangula californica subsp. californica John Hunter Thomas 1977-6-16 18790 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway Comment
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC18511  Frangula purshiana J. Burtt Davy 1895-4-21 1064 San Mateo Pilarcitos Creek Comment
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Jul 18 2008
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC211609  Frankenia salina John Thomas Howell 1924-9-28 659 San Mateo Leslie Salt Refinery Comment
  UC204065  Fraxinus latifolia A. D. E. Elmer Jul 1903 4615 San Mateo San Mateo Creek Comment
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Sep 4 2011
  CAS-BOT-BC212964  Fremontodendron californicum W. R. Dudley 1897-12-29 s.n. San Mateo Butano Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC130133  Fritillaria affinis A. D. E. Elmer 1903-5-1 5045 San Mateo Portola Comment
  CAS-BOT-BC130134  Fritillaria affinis John Hunter Thomas 1954-4-3 3821 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC130138  Fritillaria affinis Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  UC3641  Fritillaria affinis J. Burtt Davy 1895-4-20 1056 San Mateo Lake Pilarcitos Comment
  POM196511  Fritillaria affinis W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road below Woodside, Santa Cruz Peninsula Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  UCD139717  Fritillaria affinis R. E. Dengler 1960-4-12 26 San Mateo Jasper Ridge, Stanford Biological Reserve. 129 Comment
  CAS-BOT-BC130383  Fritillaria liliacea Lewis S. Rose 1933-4-2 33049 San Mateo Redwood City Comment
  SEINET12044983  Fritillaria liliacea L. S. Rose 1933-1 33049 San Mateo Redwood City Comment
  CAS-BOT-BC389682  Galium Mary Wicksten 1968-6-20 s.n. San Mateo Mr. [Mt.] Ellen trail - Memorial Park Comment
  RSA130682  Galium aparine James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UCSB9136  Galium aparine Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean; 1 mi S. of Half Moon Bay Comment
  UC188989  Galium californicum subsp. californicum Michener and Bioletti June 1893 San Mateo Lake Pilarcitos 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
  JROH3801  Galium murale John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH801  Gamochaeta ustulata John Hunter Thomas 1986-5-6 24004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC194561  Garrya elliptica Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra point Comment
  CAS-BOT-BC194571  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  JROH2542  Garrya elliptica Herbert Dengler 1975-5-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; below and uphill from spring, S.W. Jasper Ridge Comment
  POM132460  Garrya elliptica A. D. E. Elmer 1903-02 4469 San Mateo Portola. Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC278660  Gastridium phleoides L. R. Abrams 1937-1-1 s.n. San Mateo Hillsborough Comment
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5195  Gastridium phleoides John Hunter Thomas 1984-5-2 23327 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278713  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountain. Wax Myrtle Ravine 121 Comment
  RSA112358  Gaultheria shallon H. L. Mason 1921-07 s.n. San Mateo San Mateo County: Pescadero Creek Comment
  CAS-BOT-BC219149  Genista monspessulana Sue Roberts 1954-5-1 59 San Mateo La Honda in redwood area on bank above road 7 miles east of La Honda Comment
  JROH2005  Genista monspessulana John Hunter Thomas 1988-4-7 24376 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2015  Genista monspessulana John Hunter Thomas 1985-5-7 23640 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SFV8455  Genista monspessulana M. L. Linvill 1972-5-16 9 San Mateo Woodside. Mountain Home Road, 0.2 miles from Mountain Wood Lane. Comment
  JROH2614  Geranium dissectum John H. Thomas 1973-4-14 16555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2617  Geranium dissectum John Hunter Thomas 1983-4-20 21533 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC166727  Geranium dissectum Peter Rubtzoff 1977-6-7 9028 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2622  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2631  Geranium robertianum Carol Zabel 2006-4-24 57 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Upper stream bank, Bear Creek crossing, east side. Comment
  UC23577  Gilia achilleifolia subsp. achilleifolia J. Burtt Davy 1893-6-17 790 San Mateo Belmont South Coast Ranges, Belmont Comment
  UC909020  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1927-4-23 3677 San Mateo summit of road between La Honda and Pescadero Creek; summit of road between La Honda and Pescadero Creek 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
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  RSA128833  Gnaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Near upper Mud Lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  RSA18517  Gnaphalium californicum C. B. Wolf 1927-7-14 602 San Mateo Summit of Kings Mountain Rd. Comment
  POM58028  Gnaphalium chilense E. B. Copeland 1903-6-18 3211 San Mateo Montara Point. Comment
  RSA184920  Gnaphalium chilense L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mountain 122 Comment
  RSA15291  Gnaphalium luteoalbum C. B. Wolf 1927-4-3 259 San Mateo 1 mile above La Honda. Comment
  RSA101023  Gnaphalium palustre G. Oberlander 1949-7-30 322 San Mateo San Andreas Lake, San Francisco Watershed Reserve. Comment
  UCR254880  Gnaphalium palustre Peter Rubtzoff 1975-10-11 8423 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  SEINET11849564  Gnaphalium ramosissimum Unknown 1933-1 10504 San Mateo Santa Clara Valley Comment
  RSA294163  Grindelia Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4226 San Mateo N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  SEINET11835908  Grindelia E. A. Purer 1933-1 5369 San Mateo 2 mi S 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-BC304506  Grindelia hirsutula John H. Thomas 1968-10-6 14845 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  CAS-BOT-BC304512  Grindelia hirsutula John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific R. R. station, Millbrae Comment
  CAS-BOT-BC304516  Grindelia hirsutula Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC304533  Grindelia hirsutula Lewis S. Rose 1933-7-21 33306 San Mateo Montara Comment
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  JEPS89739  Grindelia hirsutula Dean W. Taylor 1988-3-30 9480 San Mateo n. slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG & E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UC1118555  Grindelia hirsutula G. E. Sindel 1935-7-25 309 San Mateo 0.25 mi n of Pescadero Creek (near mouth) Santa Cruz Quadrangle 6 Comment
  UC1118556  Grindelia hirsutula N. K. Carlson 1935-6-29 105 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  UC520390  Grindelia hirsutula Delzie Demaree 1933-6-23 10378 San Mateo Pigeon Point Comment
  POM216546  Grindelia stricta var. angustifolia D. D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge. Comment
  SEINET191590  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  POM308523  Grindelia stricta var. platyphylla Henry J. Ramsey, Henry J. Ramsey 1939-10-7 3172 San Mateo Coast, Highway 1. Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  CAS-BOT-BC306285  Hedypnois cretica Thayne C. Parks 1963-5-28 321 San Mateo In Woodside Road, about 2 miles east of summit Comment
  JROH829  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  RSA523310  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo Along Skyline Blvd.-Salada Beach Road. 305 Comment
  UC917226  Helenium puberulum W. A. Harvey and J. M. Tucker 1948-6-28 1701 San Mateo on ridge ca 3 mi n Pescadero Comment
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH849  Helianthella californica var. californica J. S. McMurphy 1911-5-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305341  Helianthella castanea Glenn L. Clifton 1988-5-11 17823 San Mateo San Bruno Mountain, canyon on north-facing slope above Brisbane, adjacent to right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 256 Comment
  CAS-BOT-BC224053  Helianthemum scoparium Fred Hemphill 1973-5-6 779 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA176823  Helianthemum scoparium var. scoparium John H. Thomas 1961-5-5 9220 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  CAS-BOT-BC306178  Hemizonia congesta subsp. congesta James I. McMurphy 1909-6-13 s.n. San Mateo Summit, between Colma and San Bruno Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  JEPS23956  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo about 5 mi sw of Palo Alto; Jasper Ridge 152 Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JROH864  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH869  Hemizonia congesta subsp. luzulifolia John H. Thomas 1974-10-26 17635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC398631  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC990599  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 San Mateo Corte Madera Creek Comment
Read comments
Mar 12 2009
  CAS-BOT-BC314929  Hemizonia congesta subsp. luzulifolia J. I. McMurphy 1906-5-8 s.n. San Mateo East of Crystal Lakes, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  SEINET7883474 Image available Hemizonia congesta var. luzulifolia Lewis S. Rose 1937-1 37662 San Mateo Emerald Lake, W. of Redwood City 183 Comment
  POM55223  Hemizonia corymbosa subsp. corymbosa A. D. E. Elmer 1903-07 4963 San Mateo Crystal Springs Lake Comment
  NY179264  Hemizonia grandiflora L. Abrams 1902-5-11 2446 San Mateo Crystal Springs Comment
  SEINET8734814 Image available Hemizonia pungens L. S. Rose 1941-1 41463 San Mateo along the Bayshore Boulevard, San Mateo 3 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
  POM49411  Hemizonia pungens subsp. maritima L. R. Abrams 1903-9-26 4017 San Mateo Bay near Menlo Park. Comment
  RSA176771  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JROH896  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1986-5-6 24005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310250  Hesperevax sparsiflora var. sparsiflora George Oberlander 1949-7-30 322 San Mateo San Francisco Watershed Reserve. On Sweeney Ridge Comment
  CAS-BOT-BC176211  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  UC1219880  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo road bank and outcropping just n dam on San Mateo Creek 121 Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  RSA151712  Hesperolinon micranthum H. K. Sharsmith 1947-6-3 3975 San Mateo Above Redwood City, outer South Coast Ranges. 152 Comment
  CAS-BOT-BC422602  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148469  Heteromeles arbutifolia Walter Knight; Irja Knight 1965-4-11 1001 San Mateo Guadalupe Road - San Bruno Mountain Comment
  JROH3682  Heteromeles arbutifolia John Hunter Thomas 1981-2-14 20223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18379  Heteromeles arbutifolia Carl B. Wolf 1927-7-1 529 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC311097  Heterotheca oregona var. scaberrima W. R. Dudley 1896-10-11 s.n. San Mateo Santa Cruz Mountain Peninsula. On railroad track between Menlo Park and Palo Alto Comment
  JROH909  Heterotheca sessiliflora subsp. echioides Carol Zabel 2006-7-24 59 San Mateo Jasper Ridge Biological Preserve, Stanford University; slope by trail to old boat landing below Field Station Comment
  JEPS27369  Heuchera micrantha Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7629 San Mateo below and se of end of paved ridge-top road just e of KRON television tower and station San Bruno Mt summit (Guadalupe Valley side of); San Bruno Mt 304 Comment
  CAS-BOT-BC420887  Heuchera micrantha var. diversifolia David D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC319638  Hieracium albiflorum Josephine D. Randall 1907-6-29 81 San Mateo Kings Mt. Road, Santa Cruz Peninsula Comment
  RSA10998  Hierochloe occidentalis C. B. Wolf 1928-3-14 1535 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  RSA120374  Hierochloe occidentalis Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  UC822103  Hierochloe occidentalis L. R. Abrams 1904-3-7 San Mateo Bear Gulch Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC289248  Holcus lanatus Josephine D. Randall 1907-7-23 158 San Mateo Near Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  JROH5205  Holcus lanatus Le Roy Abrams 1900-10-1 1014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville. Comment
  UCR141417  Holcus lanatus June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  RSA101035  Holodiscus discolor G. Oberlander 1949-5-21 183 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  SEINET10867105  Hookera terrestris Helen M. Edwards 1917-4-12 Edwards s.n. 1917 San Mateo Crystal Sprngs Lake Comment
  SEINET10598962  Hordeum californicum LeRoy R. Abrams Abrams 1651 San Mateo Cooley Landing. Comment
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33373  Hordeum marinum subsp. gussoneanum A. D. E. Elmer -May-1901 1660 San Mateo Cooley's [Cooley] Landing Comment
  CAS-BOT-BC289396  Hordeum murinum subsp. glaucum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi. N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH5255  Hordeum murinum subsp. leporinum John H. Thomas 1962-5-31 9899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  POM250804  Horkelia californica D. D. Keck 1939-7-1 5008 San Mateo 3 miles S of Pescadero, 1 mile from the ocean. 61 Comment
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  SD37817  Hosackia stipularis Edith A. Purer 1932-7-18 4004 San Mateo King's Mountain, mountainside Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  CAS-BOT-BC311393  Hypochaeris glabra John H. Thomas 1955-4-6 4843 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CHSC56086  Hypochaeris glabra Jan M. Karaz 1979-5-27 53 San Mateo 3 mi east of Hwy 280 intersection with Woodside Road, 1.2 mi east of Woodside on Mountain Home Road. 7 Comment
  JROH914  Hypochaeris glabra John H. Thomas 1966-4-22 11573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH921  Hypochaeris glabra John Hunter Thomas 1986-5-6 24012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311398  Hypochaeris glabra Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  RSA18313  Hypochaeris glabra C. B. Wolf 1927-7-14 598 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH928  Hypochaeris radicata John H. Thomas 1974-5-3 17237 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH940  Hypochaeris radicata John Hunter Thomas 1988-5-16 24464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  UCD35771  Hypochaeris radicata Beecher Crampton 1962-6-11 6492 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  UCSB17223  Hypochaeris radicata Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET4170681  Iris douglasiana Unknown 1925-3-27 San Mateo Burlingame. Comment
  SEINET7097928  Iris douglasiana A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SEINET10966333  Iris douglasiana R. D. Sage 1992-1-6 Sage 13394 -2 San Mateo Collected along purisima creek rd trail in purisima creek redwoods open space preserve. 9 Km w woodside. 244 Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  UCSB18476  Iris douglasiana Muirhead, M. 1964-4-17 San Mateo on Crocker Estate; Hillsborough; California 91 Comment
  CAS-BOT-BC133651  Iris longipetala Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133660  Iris longipetala L. R. A. 1902-4-13 2337 San Mateo Lake San Andreas Comment
  SEINET5555919  Iris longipetala H. S. Gentry 1931-1 60 San Mateo Collected 2 miles W of San Bruno. Comment
  UC844901  Iris longipetala Lewis S. Rose 1938-4-1 38111 San Mateo above Visitacion Valley; San Bruno Hills 60 Comment
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Oct 22 2013
  JROH4436  Iris pseudacorus John Hunter Thomas 1990-6-7 24865 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake at boat ramp near bridge over the 2 halves of Searsville Lake. Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  CAS-BOT-BC112617  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  JEPS91027  Isolepis cernua Dean W. Taylor 1991-5-20 11793 San Mateo Santa Cruz Mountains, Pescadero Creek 0.3 mi s ofrom the creek mouth, w of Highway 1 Pescadero Creek; Santa Cruz Mountains, Pescadero Creek 9 Comment
  UC1100777  Isolepis cernua Malcolm A. Nobs, S. Galen Smith 1949-8-25 1565 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  CAS-BOT-BC112607  Isolepis cernua Herbert L. Mason 1949-7-7 14027 San Mateo Nouth of Gazos Creek near the ocean. Southern part of county. Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC173842  Juncus balticus Peter Rubtzoff 1977-5-15 9020 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. 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
  UC1101045  Juncus bufonius Herbert L. Mason 1949-7-7 14028 San Mateo Mouth of Gazos Creek Comment
  JROH5946  Juncus bufonius var. bufonius John Rawlings 2017-4-9 2016 San Mateo Jasper Ridge Biological Preserve, Stanford University; along entrance road near Sand Hill Gate 117 Comment
  RSA276358  Juncus bufonius var. congestus Jane Turner, Francis M. Ball 1962-7-7 SK&F- 1083 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  HSC23990  Juncus confusus Mary Katherine Wicksten 1971-7-2 153 San Mateo Huddart Park at Miwok area Comment
  UCR244653  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  SD260863  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo San Bruno Mountain; Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC173697  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  CDA39185  Juncus occidentalis W. Plummer 1974-4-18 s.n. San Mateo Pescadero, Carlene Shade property. 0 Comment
  RSA3938  Juncus patens W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Peninsula: Along San Francisquito Creek, Stanford University. Comment
  RSA786665  Juncus patens Peter Rubtzoff, Roman Gankin 1975-9-11 8375 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC2680  Juncus phaeocephalus J. Burtt Davy 1893-6-17 851 San Mateo w of Salt Marsh; Belmont Comment
  CAS-BOT-BC210078  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9563 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA796175  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4504  Juncus phaeocephalus var. paniculatus John Rawlings 2010-5-19 1058 San Mateo Jasper Ridge Biological Preserve, Stanford University. West edge of California semaphore grass vernal depression. 122 Comment
  RSA790997  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1979-7-26 9298 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4507  Juncus xiphioides John H. Thomas 1973-4-14 16568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4513  Juncus xiphioides John Hunter Thomas 1978-4-20 19087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4520  Juncus xiphioides John Hunter Thomas 1983-5-31 22317 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock Comment
  JROH5666  Juncus xiphioides John Rawlings 2011-8-10 0997 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek delta near open water. 104 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
  JROH4039  Kickxia elatine Carol Zabel, Ann Lambrecht 2006-7-26 60 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, west side of creek bank Comment
  JROH4050  Kickxia spuria Carol Zabel 1989-8-26 31 San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside main gate on Sand Hill Road Comment
  JROH5266  Koeleria macrantha Louis Adams 1963-5-25 26 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy field adjacent to Searsville Lake. Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA11953  Koeleria macrantha David D. Keck; 1932-5-6 1476 San Mateo above Millbrae Highlands Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC539286  Lachnagrostis filiformis John Rawlings; Ken Hickman 2015-10-30 1647 San Mateo Caltrans right-of-way upslope from Hwy 92 W onramp to Hwy 280 N; downslope from San Francisco Watershed fenceline 118 Comment
  SEINET12317274  Lachnagrostis filiformis H. E. Wieser 1932-1 s.n. San Mateo Black Mtn road, Hillsborough Hills, near Burlingame Comment
  JROH945  Lactuca saligna John H. Thomas 1974-6-30 17459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH960  Lagophylla ramosissima John H. Thomas 1967-6-1 12968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH965  Lagophylla ramosissima John Hunter Thomas 1983-6-29 22722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC337879  Lapsana communis L. R. Abrams 1927-7-20 12179 San Mateo Santa Cruz Mountain Peninsula. La Honda Creek, about 1 mi above La Honda Comment
  CAS-BOT-BC337880  Lapsana communis David D. Keck 1939-7-1 5007 San Mateo Santa Cruz Mountains, La Honda, along La Honda Creek Comment
  CAS-BOT-BC339086  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339082  Lasthenia californica W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Reservoir 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-BC324422  Lasthenia californica subsp. macrantha J. H. Thomas 1949-6-4 582 San Mateo Along coast, 1.4 miles south of road from coast to Pescadero Comment
  CAS-BOT-BC324426  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pescadero - Pebble Beach Comment
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  RSA585990  Lasthenia gracilis Adree M. Desrochers 1989-4-17 447 San Mateo Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  SJSU11830  Lasthenia minor H. E. Henninger 1967-5-14 92 San Mateo Pigeon Point Comment
  JROH5875  Lathyrus latifolius Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 between Trail 5 intersection and culvert Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  POM16718  Lathyrus vestitus subsp. vestitus A. D. E. Elmer 1903-05 4745 San Mateo Kings Mountain. Comment
  POM19355  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mountain. Comment
  RSA176876  Lavatera cretica John H. Thomas 1964-4-30 10335 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  CAS-BOT-BC323154  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  CAS-BOT-BC323180  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  CAS-BOT-BC321116  Layia gaillardioides David D. Keck 1932-5-11 1763 San Mateo La Honda road 2 miles W of Skyline Blvd. Comment
  UC89225  Layia gaillardioides Katharine Brandegee 1905-6-20 San Mateo banks a few miles from San Mateo Comment
  UC935712  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo w of Milbrae Highlands Skyline Boulevard; Santa Cruz Mountains Comment
  CAS-BOT-BC327452  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC327467  Layia hieracioides John H. Thomas 1950-4-23 1646 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  CAS-BOT-BC327477  Layia hieracioides Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain; base of Quarry 2. Comment
  JROH987  Layia hieracioides John Hunter Thomas 1977-6-16 18772 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  UCR70738  Layia hieracioides David D. Keck 1932-5-11 1760 San Mateo Santa Cruz Mtns, Above Searsville Lake, on La Honda Road, E slope of mountains. 250 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-BC327507  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC382089  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake 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
  SBBG39520  Layia platyglossa L. S. Rose 1970-5-3 San Mateo Black Mtn, Skyline Blvd, W of San Mateo 121 Comment
  CAS-BOT-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, 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
  SD67318  Layia platyglossa Darley F. Howe 1967-4-14 4351 San Mateo 7.0 miles from San Mateo on road to Half Moon Bay. 120 Comment
Read comments
May 24 2013
  RSA10278  Layia platyglossa subsp. platyglossa H. A. Barker 1927-5-14 659 San Mateo North of Half Moon Bay. Comment
  RSA128806  Layia platyglossa subsp. platyglossa Peter H. Raven 1950-4-16 1780 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  CAS-BOT-BC266607  Legenere limosa W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Ponds, Coal Mine Ridge Comment
  CAS-BOT-BC534548  Lemna gibba W. R. Dudley 1898-1-5 s.n. San Mateo Santa Cruz Peninsula, between Pescadero and Swanton Comment
  CAS-BOT-BC537272  Lemna minor D E Breedlove 1974-5-13 36220 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC527271  Lemna minuta W. R. Dudley 1909-10-4 s.n. San Mateo W. twin pond near Mussel Rock, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC221529  Lepechinia calycina W. R. Dudley 1893-1-1 s.n. San Mateo Santa Cruz Peninsula. Near Belmont Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  RSA18304  Lepechinia calycina Carl B. Wolf 1927-5-31 412 San Mateo North end of Searsville Lake. Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  SEINET12277320  Lepechinia calycina Unknown 1933-1 10430 San Mateo Alpine Road Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  JROH1545  Lepidium nitidum John H. Thomas 1974-4-13 17146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1553  Lepidium nitidum John Hunter Thomas 1987-4-7 24174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1554  Lepidium nitidum John Hunter Thomas 1991-4-11 24984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12746  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  CAS-BOT-BC12948  Lepidium strictum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. In ground near Ocean Shore at Spanish town. Comment
  CAS-BOT-BC226539  Leptosiphon acicularis H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. On Jasper near S. border Woodside Comment
  POM282346  Leptosiphon ambiguus Lyman Benson 1931-3-15 2646 San Mateo Emerald Lake, Redwood City Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  RSA6298  Leptosiphon androsaceus D. D. Keck 1932-5-6 1481 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  UC106861 Image available Leptosiphon croceus Alice Eastwood 1901-5-10 San Mateo Blenheim Comment
  SD38816  Leptosiphon liniflorus Marie Cummings 1933-5-23 3718 San Mateo Spring Valley Comment
  UC729640  Leptosiphon parviflorus Carl B. Wolf 1929-5-25 3727 San Mateo s of Pescadero; Pebble Beach Comment
  RSA0103655  Leptosiphon parviflorus C. B. Wolf 1929-5-25 3727 San Mateo Pebble Beach, S of Pescadero. Comment
  SJSU8745  Leptospermum laevigatum A. M. Jesse 1979-4-21 San Mateo Sawyer Rd, Crystal Springs Reservoir Comment
  CAS-BOT-BC324055  Lessingia arachnoidea John Thomas Howell 1927-4-15 2325 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324070  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  CHSC98697  Lessingia arachnoidea Samantha Mackey Hillaire 2007-7-17 1245 San Mateo Pulgas Ridge, near south end of Lower Crystal Springs Reservoir, and north end of Upper Crystal Springs Reservoir. North of intersection of Skyline Blvd and Hwy 35, on sides of a small access road. UTM 10 557433E, 4151982N. 106 Comment
  NY180563  Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake Comment
  SEINET3071639 Image available Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake. Comment
  NY180564  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville Comment
  JROH1010  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1023  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-7-7 22823 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7063128  Lessingia glandulifera var. pectinata A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  JEPS88020  Lessingia hololeuca S. Markos, Noel Johnson 1996-9-17 147 San Mateo Docent Center, Jasper Ridge; Jasper Ridge Biological Preserve Comment
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Oct 15 2013
  JROH5816  Lessingia hololeuca John Rawlings, Cary Tronson 2016-10-4 1948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 111 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
  CAS-BOT-BC272288  Leymus X multiflorus W. R. Dudley 1909-10-10 s.n. San Mateo Just west of Belmont Sta., Santa Cruz Mountain Peninsula Comment
  JEPS71207  Leymus X vancouverensis William S. Cooper 1919-7-22 207 San Mateo Ano Nuevo Pt. Comment
  UCD64581  Leymus mollis Beecher Crampton 1962-6-11 6511 San Mateo Sharp Park, Mori's Point. Comment
  CAS-BOT-BC272184  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Lower Guadalupe Parkway north of school, San Bruno Mountains Comment
  JEPS71202  Leymus triticoides William S. Cooper 1925-5-28 7 San Mateo Salada Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  UC306537  Ligusticum apiifolium A. D. E. Elmer July 1903 4966 San Mateo San Mateo Comment
  SEINET12182118  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lake and Sky Line Drive Comment
  POM137443  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  JEPS95207  Limnanthes macounii Eva Buxton 1998-3-24 San Mateo e side of Hwy 1 just s of Etheldore Street, opposite Half Moon Bay airport Moss Beach Comment
Read comments
Jun 21 2014
  CDA36279  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo Foster City; Seal Slough. 0 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
  UC727278  Linanthus androsaceus Ira L. Wiggins 1943-4-21 10164 San Mateo 0.25 mi s jct. of hwy. from Pescadero with coastal road to Santa Cruz Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  UC142600  Lithocarpus densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range Comment
  CAS-BOT-BC36067  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-5-27 s.n. San Mateo Mt. Side above Woodside Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  RSA212176  Lithocarpus densiflorus var. densiflorus L. S. Rose 1969-8-22 69098 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  CAS-BOT-BC36069  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo Beyond Post Office and near Mill on Alpine road Comment
  CAS-BOT-BC430972  Lithophragma bolanderi Le Roy Abrams 1901-4-1 1165 San Mateo near Woodside Comment
  CAS-BOT-BC60212  Lobularia maritima Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. Reservoir Hill. Comment
  CAS-BOT-BC60216  Lobularia maritima J. H. Thomas 1959-12-19 8519 San Mateo Near Palo Alto Yacht Harbor along edge of dump. Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  CAS-BOT-BC342472  Logfia gallica Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JROH739  Logfia gallica John Hunter Thomas 1980-5-8 19947 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173835  Lolium multiflorum Peter Rubtzoff 1977-6-21 9059 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  CAS-BOT-BC283224  Lolium multiflorum John H. Thomas 1971-5-2 15818 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC283228  Lolium multiflorum J. W. Tilden 1946-5-29 s.n. San Mateo 3 miles W of Redwood City on Jefferson Ave Comment
  UC1132202  Lolium multiflorum N. K. Carlson 1935-6-29 110 San Mateo 1 mi s Pescadero; Santa Cruz Quadrangle 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
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  UC21278  Lomatium caruifolium var. caruifolium J. Burtt Davy 1895-4-20 1031 San Mateo Lake San Andreas Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  JROH266  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1980-5-1 19910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH267  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1980-5-1 19909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH280  Lomatium macrocarpum John H. Thomas 1975-5-26 17909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306534  Lomatium utriculatum A. D. E. Elmer April, 1903 4926 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240597  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  POM46744  Lonicera hispidula var. vacillans Edward L. Greene 1901-9-2 1533 San Mateo Crystal Springs Lake. Comment
  RSA14208  Lonicera hispidula var. vacillans C. B. Wolf 1926-10-19 192 San Mateo Along road west of La Honda; Santa Cruz Mts. Comment
  RSA6423  Lonicera hispidula var. vacillans D. D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 549 Comment
  CAS-BOT-BC241540  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  CAS-BOT-BC243963  Lonicera involucrata var. ledebourii D. E. Breedlove 1974-5-13 36219 San Mateo San Pedro Valley Park, Pacific 152 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-BC243973  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-26 s.n. San Mateo Near Lobitos Creek, Santa Cruz Mountain Peninsula Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  CAS-BOT-BC241415  Lonicera japonica Walter Knight; Irja Knight 1964-9-2 947 a San Mateo San Bruno Mountain. Crocker Avenue, an escape near Guadalupe Road Comment
  JROH2047  Lotus corniculatus John Hunter Thomas 1980-5-13 19963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2044  Lotus corniculatus John Hunter Thomas 1977-6-16 18754 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  POM18625  Lotus formosissimus Edward L. Greene 1902-5-1 689 San Mateo Crystal Springs Lake. Comment
  UC15579  Lotus formosissimus Alice Eastwood Apr 1896 San Mateo between Crystal Springs and Millbrae Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  RSA195686  Lotus micranthus John H. Thomas 1967-5-10 12842 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JEPS55903  Lotus scoparius Dr. L. M. Newlon 1921-7-30 249 San Mateo Salada Comment
  POM276674  Lotus scoparius var. scoparius Lyman Benson 1928-12-15 832 San Mateo La Honda 213 Comment
  RSA18307  Lotus scoparius var. scoparius Carl B. Wolf 1927-5-31 409 San Mateo North end of Searsville Lake. Comment
  HSC23882  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 25 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
  SBBG33485  Lupinus affinis A. D. E. Elmer -Apr-1903 5021 San Mateo Portola Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  SEINET10488409  Lupinus albifrons Charles F. Baker 1903-4-6 Baker 1889 San Mateo San bruno hills, tufts of many stems on a woody base Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC196127  Lupinus albifrons var. collinus John Thomas Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  RSA22000  Lupinus albifrons var. collinus J. T. Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  SEINET10970193  Lupinus albifrons var. collinus J. C. Downey 1955-4-2 Downey 212 San Mateo Near the twin peaks 213 Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  UCR122975  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6797 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge Comment
  SEINET12154360  Lupinus arboreus Unknown 1933-1 10377 San Mateo Baden Station S San Francisco Comment
  POM11077  Lupinus arboreus var. arboreus A. D. E. Elmer 1903-05 4414 San Mateo Colma. Comment
  RSA10285  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 664 San Mateo North of Half Moon Bay. Comment
  RSA6289  Lupinus arboreus var. arboreus D. D. Keck 1932-5-11 1767 San Mateo Two miles north of San Gregorio. 15 Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049881  Lupinus bicolor H. W. Johansen 1955-4-9 29 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  UC711948  Lupinus bicolor Charles Piper Smith 1908-4-13 1402 San Mateo near Cedro Cottage Stanford University (Stanford University) Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  UCD23306  Lupinus formosus Alan T. Whittemore 1976-5-29 113 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  RSA0036527  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  SEINET10490756  Lupinus formosus var. formosus Charles Piper Smith 1922-6-10 Smith 3548 San Mateo South san francisco-mountain road. Comment
  SEINET10490757  Lupinus formosus var. formosus Charles Piper Smith 1922-6-10 Smith 3546 San Mateo South san francisco-mountain road. Comment
  UC75238  Lupinus latifolius var. latifolius C. F. Baker 470 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  SD27830  Lupinus menziesii Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. 305 Comment
  JROH2143  Lupinus nanus Ann Lambrecht 2008-3-30 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Mine Trail Hill Comment
  JROH5865  Lupinus nanus John H. Thomas 1975-4-5 17716 B San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA143002  Lupinus nanus subsp. nanus John H. Thomas 1960-4-26 8597 San Mateo Along Sand Hill Road, between Menlo Park and Searsville. 91 Comment
  CAS-BOT-BC27393  Lupinus nanus var. apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field near Cedro Cottage Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  POM11074  Lupinus polyphyllus var. grandifolius A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro. Comment
  SBBG39517  Lupinus succulentus L. S. Rose 1970-5-9 70039 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  SEINET10491013  Lupinus vallicola subsp. vallicola Dengler 1960-4-12 DENGLER 21 San Mateo Corolla deep blue and white; in grassland below chaparral, on dry, rocky, South-facing slope. Jasper ridge, stanford biological reserve. 122 Comment
  POM226366  Lupinus variicolor Adele Lewis Grant 1917-5-6 938 San Mateo Pebble Beach near Pescadero. Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  SJSU16062  Lupinus variicolor Toni Corelli 2010-4-9 515 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica Comment
  UC127021  Lupinus variicolor Alice Eastwood April 1896 San Mateo bet. Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  UC201947  Lupinus variicolor A. D. E. Elmer May, 1903 4709 San Mateo San Pedro Comment
  POM190281  Lupinus variicolor D. D. Keck 1932-5-11 1967 San Mateo Two miles north of San Gregorio. 15 Comment
  SEINET10936778  Lupinus variicolor Smith 1947-4-25 Smith 47185 San Mateo Pebble beach (pescadero), hwy 1. Banner white, wings violet blue. Comment
  SJSU15904  Luzula comosa var. comosa John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1729 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC441370  Luzula subsessilis John H. Thomas 1965-4-29 10611 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JEPS101278  Luzula subsessilis Dean W. Taylor 1988-3-16 9405 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot 371 Comment
  UCSB7479  Lysichiton americanus Horton, Sam 1969-3-28 San Mateo Canyon Road, 1.4 miles east of Cloverdale Road, Butano 152 Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3368  Lysimachia arvensis John Hunter Thomas 1982-7-8 21077 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA0011331  Lythrum hyssopifolia Josephine Randall 1907-6-29 244 San Mateo Kings Mt. Road; Santa Cruz Peninsula. Comment
  RSA0011332  Lythrum hyssopifolia W. R. Dudley 1906-6-12 s.n. San Mateo W of Tripp s store, Woodside; Santa Cruz Mt Peninsula. Comment
  CAS-BOT-BC342587  Madia Fred Hemphill 1973-4-15 654 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS40339  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo between Crystal Springs Lake and San Mateo Comment
  HSC23936  Madia elegans Mary Katherine Wicksten 1971-7-22 185 San Mateo Huddart Park, by park entrance Comment
  CAS-BOT-BC344487  Madia exigua W. R. Dudley 1906-6-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Field E. of Kings Mt. House Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA63052  Madia exigua L. S. Rose 1950-5-20 50145 San Mateo Emerald Lake region, hills w. of Redwood City. 244 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
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913110  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo on La Honda road above Woodside; east slope of the Santa Cruz Mts. 305 Comment
  CAS-BOT-BC343333  Madia gracilis David D. Keck 1932-4-29 1455 San Mateo Mills Field Airport, Bayshore Highway Comment
  RSA176528  Madia gracilis John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; near Westridge end of ridge Comment
Read comments
May 25 2015
  UCD134287  Madia gracilis W. A. Harvey; J. M. Tucker 1948-6-29 1703 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  POM263770  Madia madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC345142  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo About 2 miles SW of Pescadero 60 Comment
  JROH1100  Madia sativa John H. Thomas 1971-8-7 16020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1112  Madia sativa John Hunter Thomas 1983-7-7 22828 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1110  Madia sativa John Hunter Thomas 1982-7-22 21088 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH4692  Maianthemum racemosum D. D. Davis 1903-4-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of Searsville Ridge Comment
  UCSB11486  Maianthemum racemosum Olson, Jim 1962-4-17 San Mateo 5 miles southeast of Halfmoon Bay on road to San Mateo. 45 Comment
  SEINET12055169  Maianthemum racemosum subsp. amplexicaule Unknown 1914-1 s.n. San Mateo San Francisquito Creek Comment
  CHSC57106  Maianthemum stellatum Steven Triano 1988-5-24 208 San Mateo Along s side of Old La Honda Road ca 0.3 mi e of its jct. With La Honda Road. 365 Comment
  JROH4709  Maianthemum stellatum John Hunter Thomas 1977-6-16 18746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514169  Maianthemum stellatum Walter & Irja Knight 1964-5-4 s. n. San Mateo Colma Canyon, south ridge Comment
  CAS-BOT-BC203908  Malacothamnus aboriginum Alice Eastwood; John Thomas Howell 1939-6-30 7435 San Mateo Los Trancos Creek near Stanford University Comment
  HSC16067  Malacothamnus fasciculatus J. Wendell Howe 1930-6-5 186 San Mateo Coast range W Palo Alto Comment
  JROH2965  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA226763  Malva nicaeensis I. L. Wiggins 1969-5-25 21025 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  CHSC1037  Malva sylvestris L. Lancelot 1930-5-3 San Mateo Moss Beach. Comment
  JROH1901  Marah fabacea John Hunter Thomas 1991-5-17 25055 San Mateo Jasper Ridge Biological Preserve, Stanford University; between dam and San Francisquito Creek near pump house Comment
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  RSA440955  Marah fabacea Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA15241  Marah fabacea C. B. Wolf 1927-2-17 202 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  RSA440956  Marah fabacea K. M. Stocking 1947-5-15 39 San Mateo 2 miles W of Redwood City, just E of Woodside. Comment
  CDA5694  Marrubium vulgare C. M. Sill 1961-7-1 San Mateo Laurel School, Menlo Park. 0 Comment
  CAS-BOT-BC67841  Marsilea vestita George Oberlander 1951-1-1 s.n. San Mateo San Francisco Watershed Reserve Comment
  JROH621  Matricaria discoidea John Hunter Thomas 1980-5-8 19953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306750  Meconella californica A. D. E. Elmer April 1903 4499 San Mateo San Mateo; toward Crystal Springs Lake Comment
  UC674717  Meconella californica Gregory Lyon 1934-3-17 41 San Mateo .75 mi e Skyline Blvd (Buri-Buri Ridge); Caroland's Tract 121 Comment
  POM149359  Meconella californica A. D. E. Elmer 1903-04 4499 San Mateo San Mateo, toward Crystal Springs Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  JROH2166  Medicago polymorpha John H. Thomas 1973-3-12 16481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2168  Medicago polymorpha John H. Thomas 1974-4-19 17161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2176  Medicago polymorpha John Hunter Thomas 1992-5-14 25229 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC157962  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-6-21 9057 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek area Comment
  CAS-BOT-BC269472  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  CAS-BOT-BC269476  Melica californica W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Near San Mateo Comment
  POM204770  Melica californica C. F. Baker 1903-4-6 1892 San Mateo San Bruno Hills. 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
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 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
  JROH5302  Melica imperfecta John Hunter Thomas 1978-4-8 19059 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5310  Melica imperfecta W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 near intersection with Trail 9. Comment
  POM296604  Melica imperfecta Lyman Benson 1935-5-5 6537 San Mateo Lake Searsville 152 Comment
  JROH2194  Melilotus indicus John Hunter Thomas 1982-11-6 21190 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2185  Melilotus indicus John H. Thomas 1971-5-30 15952 San Mateo Jasper Ridge Biological Preserve, Stanford University; at dam Comment
  JROH2197  Melilotus indicus John Hunter Thomas 1987-5-15 24283 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UCSC007763  Melilotus indicus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM284510  Melissa officinalis Lyman Benson 1937-8-15 8489 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  CAS-BOT-BC290608  Mentha Peter Rubtzoff; Walter Knight; Irja Knight 1987-10-16 9866 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area along old Guadalupe Road. Comment
  RSA217959  Mentha Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountains; Crocker Avenue Comment
  JROH2830  Mentha X piperita Carol Zabel 2006-8-23 65 San Mateo Jasper Ridge Biological Preserve, Stanford University; Dennis Martin site Comment
  JEPS63293  Mentha pulegium James G. Daly Ca. 1934 579 San Mateo about 1 mi n of road to La Honda on main ridge Santa Cruz Mts.; main ridge of Santa Cruz Mts. Comment
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JEPS40609  Micropus californicus var. californicus R. F. Hoover 1941-4-23 4909 San Mateo Redwood City Hills Comment
  JROH1124  Micropus californicus var. californicus John H. Thomas 1974-4-24 17187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1127  Micropus californicus var. californicus John Hunter Thomas 1981-5-8 20551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  CAS-BOT-BC349020  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2421 San Mateo Woodside Comment
  RSA184978  Microseris douglasii subsp. douglasii L. S. Rose 1966-5-2 66037 -A San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC349018  Microseris douglasii subsp. douglasii W. R. Dudley 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road near Strawberry Bend Comment
  CAS-BOT-BC349145  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  POM53382  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 756 San Mateo Woodside. Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  CAS-BOT-BC349141  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-3-28 430 San Mateo Bayshore Hwy., one mi. s. of junction with Harbor Blvd., Redwood City Comment
  RSA8339  Microseris lindleyi L. S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  JROH5921  Microsteris gracilis John H. Thomas 1982-3-12 20804 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near [Escobar horse trail gate] fence. Comment
  UC1063413  Mimulus aurantiacus var. aurantiacus N. K. Carlson 1935-7-5 53 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle 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
  JROH4082  Mimulus douglasii Le Roy Abrams 1902-4-5 2293 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  SBBG33480  Mimulus guttatus A. D. E. Elmer -Aug-1903 4857 San Mateo Crystal Springs Lake Comment
  RSA60035  Mimulus guttatus G. R. Campbell 1950-6-7 15484 San Mateo 7 miles north of Junction of Hwy 5 and 9; hills west of Palo Alto. 457 Comment
  UCD122861  Mimulus primuloides Clyde Elmore 1967-9-14 s.n. San Mateo The Sequoias (Lutheran retirement community), off Portola Road, Woodside. Comment
  CAS-BOT-BC388837  Minuartia douglasii Le Roy Abrams 1902-5-4 2429 San Mateo Woodside Comment
  POM308671  Minuartia douglasii Florence Danforth 1943-5-7 2388 San Mateo Jasper Ridge, above Searsville Lake. Comment
  CAS-BOT-BC388825  Minuartia douglasii Arthur Spiegler 1952-5-10 80 San Mateo Jasper Ridge above Searsville Lake 457 Comment
  CAS-BOT-BC214090  Monardella villosa Alice Eastwood; John Thomas Howell 1939-6-30 7436 San Mateo Los Trancos Creek near Stanford University Comment
  RSA176713  Monardella villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC214089  Monardella villosa H. M. Hall 1924-1-1 11958 San Mateo S.W. side Montara Mt. Comment
  JEPS127892  Monardella villosa subsp. villosa Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 306 San Mateo Crystal Springs Reservoir Comment
  UC25530  Monardella villosa subsp. villosa J. Burtt Davy 1893-6-17 770 San Mateo Belmont South Coast Ranges 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
  JROH3355  Montia fontana Toni Corelli 2004-4-14 269 San Mateo Jasper Ridge Biological Preserve, Stanford University; wet area adjacent to trail 10 181 Comment
  CAS-BOT-BC444950  Montia fontana John H. Thomas 1973-4-25 16688 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  POM291272  Muilla maritima Lyman Benson 1930-4-6 2036 San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  CAS-BOT-BC508578  Muilla maritima John H. Thomas 1949-4-1 216 San Mateo West of Redwood City Comment
  CAS-BOT-BC508581  Muilla maritima Cynthia Steele 1948-4-18 34 San Mateo Redwood City Comment
  CDA34567  Myosotis latifolia M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 876 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 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
  RSA485312  Myosotis sylvatica Dave wheat 1968-4-7 86 San Mateo 1 mile west of intersection of Calif. 84 and calif. 35, 5 mi. north of la Honda. Comment
  CAS-BOT-BC101770  Myrica californica W. R. Dudley 1893-2-18 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC438777  Myrica californica Phyllis Bentley 1988-3-24 193 San Mateo Ano Nuevo State Park 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
  JROH2695  Myriophyllum aquaticum John Hunter Thomas 1983-5-31 22318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD102559  Myriophyllum sibiricum Herbert L. Mason; Verne Grant 1946-8-28 13079 San Mateo North of San Francisco County Prison. Comment
  CAS-BOT-BC260232  Nassella pulchra Lewis S. Rose 1956-5-7 56071 San Mateo Skyline Boulevard W of San Mateo 182 Comment
  CAS-BOT-BC260236  Nassella pulchra John H. Thomas 1971-5-2 15869 F San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  CAS-BOT-BC260241  Nassella pulchra Javier Penalosa 1963-3-9 2670 San Mateo San Bruno Mountain. SE of 1314 ft. summit 381 Comment
  RSA176741  Nassella pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  JROH1569  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3202  Navarretia heterodoxa John Hunter Thomas 1982-7-2 21047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3696485 Image available Navarretia heterodoxa Lewis S. Rose 1934-5-27 34280 San Mateo Emerald Lake. Comment
  JROH3210  Navarretia squarrosa John H. Thomas 1973-6-15 16835 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM65143  Navarretia squarrosa C. F. Baker 1903-6-30 3356 San Mateo Crystal Springs. Comment
  SD3919  Navarretia squarrosa Ulysses S. Grant 1925-9-2 San Mateo Burlingame Comment
  UC67150  Nemophila menziesii var. atomaria Harley P. Chandler 1901-3-15 800 San Mateo cliffs w Colma; Region of San Francisco Bay, w of Colma Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  CAS-BOT-BC219487  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon 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
  JROH4171  Nicotiana acuminata var. multiflora John Rawlings 2012-8-20 1128 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site marker 71 Comment
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  CAS-BOT-BC140427  Oemleria cerasiformis W. R. Dudley 1900-3-1 s.n. San Mateo By road N. of Summit Springs Comment
  CAS-BOT-BC140431  Oemleria cerasiformis David D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC140442  Oemleria cerasiformis John H. Thomas 1967-2-9 12400 San Mateo San Bruno, near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC140446  Oemleria cerasiformis Elizabeth McClintock 1967-6-24 s.n. San Mateo Lower Colma Canyon Comment
  JROH3706  Oemleria cerasiformis John H. Thomas 1965-2-22 10552 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above edge of Searsville Lake Comment
  JROH3716  Oemleria cerasiformis Carol Zabel 1989-3-5 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2. Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  RSA112471  Oemleria cerasiformis E. A. Dudley 1904-3-3 s.n. San Mateo Portola Valley, Santa Cruz Mts. Comment
  UCSC004918  Oenothera elata Monica Larenas 1985-6-1 22 San Mateo Hwy 1, 1 mi N of Bean Hollow Comment
  SD27768  Oenothera elata subsp. hookeri Carl B. Wolf 1927-6-29 564 San Mateo On coast, 3.0 miles south of San Gregorio. Comment
  RSA648323  Oenothera ovata J. Doty 1969-3-27 606 San Mateo San Gregorio State Beach Park. 15 Comment
  RSA269270  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown Prop., 3045 Ralston Ave., Burlingame Comment
  JROH2988  Olea europaea John H. Thomas 1967-5-10 12850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA136184  Ornithopus sativus John H. Thomas 1956-7-2 6039 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 Comment
  SJSU14729  Ornithostaphylos oppositifolia C. W. Sharsmith 1991-12-14 9231 San Mateo Buena Vista Nursery, Woodside Comment
  JEPS11666  Orobanche californica subsp. californica Mrs. Clara Hunt Sep 1908 San Mateo Farallone City. Comment
  CAS-BOT-BC499689  Orobanche californica subsp. californica L. R. Abrams 1909-8-2 4275 San Mateo Santa Cruz Peninsula; Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC499690  Orobanche californica subsp. californica Helen D. Geis 1901-10-26 s.n. San Mateo Half Moon Bay Comment
  POM59435  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City, on slopes facing the ocean. Comment
  SJSU15793  Orobanche fasciculata Toni Corelli 2010-7-8 642 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH3090  Orobanche vallicola Toni Corelli 2003-11-5 266 San Mateo Jasper Ridge Biological Preserve, Stanford University; in moist woodland above San Francisquito Creek along trail 2 82 Comment
  CAS-BOT-BC502964  Orobanche vallicola Frank Tose 1927-10-1 s.n. San Mateo On the road to San Mateo Comment
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  RSA6295  Orthocarpus floribundus D. D. Keck 1932-5-6 1490 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  SEINET12288880  Orthocarpus lithospermoides Unknown 1932-1 9105 San Mateo above Spring Valley Lakes Comment
  POM286414  Orthocarpus purpurascens Lyman D. Benson 1930-5-1 2051 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 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
  POM15628  Orthocarpus pusillus Stewart H. Burnham 1894-4-21 s.n. San Mateo [No location information provided.] Comment
  JROH294  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  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
  JROH5644  Oxalis corniculata John Rawlings 2014-6-2 1256 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker's Residence 106 Comment
  OBI7876  Oxalis corniculata G. L. Parsons 1976-5-31 125 San Mateo San Mateo Comment
  POM278945  Oxalis corniculata Lyman Benson 1930-4-6 2042 San Mateo Moss Beach. West slope. 15 Comment
  SEINET920558  Oxalis corniculata H. S. Gentry 1931-1 101 San Mateo Collected about 1 mile southeast of Holy Cross Cemetery. Comment
  CHSC19693  Oxalis oregana L. A. Wright Jr. 1971-4-4 26 San Mateo Collected ca. 10 ft off the s edge of Canyon Rd, ca. 2 mi e from its junc with Cloverdale Rd, ca. 4 mi s off Pescadero Rd, about 3 mi e off Hwy 1. Near entrance to Butano Girl Scout Camp. 152 Comment
  POM353454  Oxalis oregana A. C. Life 1924-2-22 s.n. San Mateo Kings Mountain, Redwood Park. Comment
  UC2049874  Oxalis oregana H. W. Johansen 1955-4-3 11 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  HSC16710  Oxalis oregana P. A. Murphy 1965-4-16 35 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  SEINET3347652 Image available Oxalis oregana Janet Jacob 1951-4-1 60 San Mateo 7 miles E of Pescadero Comment
  JROH5339  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  CAS-BOT-BC253858  Panicum miliaceum Jake Sigg; Peter Rubtzoff; Paul Reeberg 1991-8-10 s.n. San Mateo P. G. & E. Marsh Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  CAS-BOT-BC265663  Paspalum distichum Ira L. Wiggins 1980-8-29 22260 San Mateo San Francisquito Creek, 200 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC265664  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  CDA5092  Passiflora caerulea T. C. Fuller, P. Arnand Jr. 1959-6-14 2615 San Mateo Menlo Park. 0 Comment
  JROH4100  Pedicularis densiflora John H. Thomas 1956-4-7 5602 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes 182 Comment
  JROH4112  Pedicularis densiflora John H. Thomas 1973-4-14 16571 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM15589  Pedicularis densiflora E. B. Copeland 1903-5-9 3050 San Mateo Big Basin of Pescadero Creek. Comment
Read comments
Jun 12 2020
  CAS-BOT-BC207024  Pelargonium vitifolium John Thomas Howell 1932-12-21 10864 San Mateo Along road just south of Pescadero. Comment
  CAS-BOT-BC207028  Pelargonium vitifolium Roland M. Block 1894-5-1 s.n. San Mateo King's Mountain Comment
  CDA4422  Pelargonium vitifolium T. C. Fuller 1960-10-5 5198 San Mateo Along old highway right-of-way, Highway 1, 2.5 miles south of Pebble Beach State Park. 0 Comment
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  JROH98  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5818  Pennisetum setaceum John Rawlings 2016-10-8 1949 San Mateo Sand Hill Rd. near the SLAC fence-line opposite the entrance to the Horse Park at Woodside, San Mateo Co. 118 Comment
  JROH1161  Pentachaeta alsinoides John Hunter Thomas 1989-4-20 24639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC330499  Pentachaeta bellidiflora John H. Thomas 1971-5-2 15821 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about 3 miles westward from Redwood City. 152 Comment
  POM55515  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake. Comment
  POM88666  Pentachaeta exilis L. R. Abrams 1902-4-13 2326 San Mateo San Andreas Lake. Comment
  CAS-BOT-BC77007  Pentagramma triangularis subsp. triangularis George Oberlander 1950-2-1 400 San Mateo San Francisco Watershed Reserve - Pilarcitos Canyon Comment
  CAS-BOT-BC77012  Pentagramma triangularis subsp. triangularis David D. Keck 1932-2-12 1365 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 304 Comment
  JROH113  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC812463  Pentagramma triangularis subsp. triangularis Lewis S. Rose 1938-2-23 38082 San Mateo Woodside 152 Comment
  CAS-BOT-BC222702  Perideridia gairdneri subsp. gairdneri V. F. Hesse 1954-7-30 1344 San Mateo Near Pebble Beach 15 Comment
  JROH3280  Persicaria maculosa Toni Corelli 2004-10-20 281 b San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Road C, below low flow crossing, on a moist embankment 80 Comment
  JROH5974  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-9-12 2294 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence Bear Creek, Corte Madera Creek, and San Francisquito Creek 71 Comment
  CAS-BOT-BC330313  Petasites frigidus var. palmatus Roxana S. Ferris 1918-3-30 750 San Mateo Peters Creek, 1 mi above Evans Creek Comment
  POM289352  Phacelia californica Lyman Benson 1930-4-6 2038 San Mateo Spring Valley, Crystal Springs Lake, San Lorenzo Mt. Range. 183 Comment
  RSA144781  Phacelia californica John H. Thomas 1958-3-19 7045 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  UC1047010  Phacelia californica L. R. Heckard 1953-4-15 339 San Mateo high bluffs above ocean; Pedro Point Comment
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Jun 6 2008
  UC1523540  Phacelia californica Robert F. Thorne and P. Everett 1963-6-9 32213 San Mateo top of mt. near TV tower; San Bruno Mountain 335 Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  UC881073  Phacelia distans Lewis S. Rose 1939-4-13 39065 San Mateo near Crystal Springs Lake; San Mateo Canyon 60 Comment
  UC306562  Phacelia divaricata A. D. E. Elmer May, 1903 4481 San Mateo Crystal Springs Lake Comment
  UC75121  Phacelia divaricata C. F. Baker 1902-3-30 432 San Mateo stony banks and roadsides Crystal Springs Lake Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  POM65457  Phacelia divaricata A. D. E. Elmer 1903-05 4481 San Mateo Crystal Springs Lake. Comment
  HSC13719  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon 61 Comment
  CDA40397  Phacelia nemoralis E. L. Labadie Jr. 1961-6-6 s.n. San Mateo Burlingame. 0 Comment
  JROH5352  Phalaris aquatica John H. Thomas 1962-7-15 9922 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  JROH5371  Phalaris aquatica John Hunter Thomas 1985-5-21 23660 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat house. Comment
  JROH5380  Phalaris brachystachys John Rawlings 2005-5-25 1003 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  JROH5643  Phalaris brachystachys John Rawlings 2014-6-7 1263 San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yards west from Escobar Gate, 20 yards north of Road F 161 Comment
  CAS-BOT-BC258999  Phalaris californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  POM199083  Phalaris californica A. D. E. Elmer 1903-06 4699 San Mateo Crystal Springs Lake. Comment
  UC204158  Phalaris californica A. D. E. Elmer June, 1903 4699 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC265864  Phalaris canariensis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon, San Bruno Mountain Comment
  UCD89172  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake. Comment
  JROH5552  Pholistoma auritum var. auritum John Rawlings, Toni Corelli 2013-4-16 1133 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension northwest of the cistern 102 Comment
  CAS-BOT-BC171182  Phoradendron serotinum subsp. tomentosum Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue in hills, Redwood City Comment
  JROH4290  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  UC1974591  Phyllospadix scouleri Alison Kendall 2002-11-4 San Mateo Pigeon Point Comment
  UC2056116  Phyllospadix torreyi 2015-6-18 San Mateo Pescadero. beds south of promontory Comment
  UCD138387  Phyllospadix torreyi R. V. Parker 1953-4-15 s.n. San Mateo Moss Beach. Comment
  CAS-BOT-BC452027  Phyllospadix torreyi Duncan M. Porter 1960-5-12 s.n. San Mateo At the foot of Beach Street, Moss Beach. Comment
  CAS-BOT-BC142183  Physocarpus capitatus W. R. Dudley 1902-6-1 s.n. San Mateo Steven's Creek Road, lower part - Santa Cruz Peninsula Comment
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  JROH2203  Pickeringia montana var. montana John H. Thomas 1976-5-26 18147 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Shack Comment
  JROH4767  Piperia elegans subsp. elegans Linda Knox 1969-8-10 1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  JROH2204  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC135929  Pittosporum tenuifolium Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond - San Bruno Mountains Comment
  CAS-BOT-BC228139  Plagiobothrys chorisianus Greene 1903-6-5 11840 San Mateo The Pacific Slope. Point Montara Comment
  SJSU16034  Plagiobothrys chorisianus var. chorisianus Toni Corelli, John Rawlings 2016-4-29 1770 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3125  Plantago erecta John Hunter Thomas 1991-5-2 25017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5932  Plantago erecta L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Jasper Ridge Comment
  UCSB17043  Plantago erecta Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles SW of Stanford University; between Santa Clara Valley and Santa Cruz Mountains 152 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  RSA246718  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-1 35073 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  UCD124581  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  UCSB18574  Plantago lanceolata Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  JROH3136  Plantago major John Hunter Thomas 1980-11-27 20192 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC92018  Platystemon californicus A. A. Heller 1907-4-20 8445 San Mateo Near Lake Merced. Comment
  SD1839  Platystemon californicus U. S. Grant 1925-6-5 San Mateo Burlingame Comment
  UC131908  Plectritis brachystemon Alice Eastwood 1901-5-19 San Mateo Blenheim Comment
  JROH4242  Plectritis congesta subsp. brachystemon John H. Thomas 1974-5-3 17239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC260960  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Sprins Laks on road from Woodside to Byrne's Store, Santa Cruz Mountain Peninsula Comment
  UCD92187  Poa August L. Hormay 1932-5-29 s.n. San Mateo San Bruno to San Francisco Bay Shore Highway. Comment
  CAS-BOT-BC254907  Poa bulbosa W. L. Plummer 1963-3-27 s.n. San Mateo Alvin Peters property, Skyline Boulevard, Redwood City Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  CAS-BOT-BC243110  Poa secunda subsp. secunda David D. Keck 1933-5-11 2311 San Mateo Crystal Springs Lake, about E side Comment
  CAS-BOT-BC243124  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  JROH5701  Poa secunda subsp. secunda John Rawlings 2015-4-7 1350 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky ridge crest of Jasper Ridge 175 Comment
  UCD92154  Poa unilateralis R. L. Pendleton 1907-4-20 616 a San Mateo Lake Merced. 91 Comment
  JROH2859  Pogogyne serpylloides John H. Thomas 1976-4-30 18104 A San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2863  Pogogyne serpylloides John Hunter Thomas 1982-5-18 20932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007771  Polycarpon tetraphyllum var. tetraphyllum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA112464  Polygala californica W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountains: Pescadero Creek Comment
  CAS-BOT-BC413944  Polygonum aviculare subsp. aviculare Thomas R. Mertens 1963-9-28 6 San Mateo 1-2 miles north of Santa Cruz County line on State Highway 1 Comment
  CAS-BOT-BC414108  Polygonum aviculare subsp. aviculare Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Area in Crocker Hills adjacent to Cow Palace Comment
  JROH3261  Polygonum aviculare subsp. depressum John Hunter Thomas 1977-6-16 18795 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC109243  Polygonum paronychia Robert Robertson 1954-5-1 120 San Mateo Pebble Beach. 4 Comment
  SD27835  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach so. of Pescadero Comment
  UC1191256  Polygonum punctatum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1560 San Mateo Sharp Park; marshes Comment
  UC168663  Polygonum punctatum C. F. Baker 1902-10-20 1858 San Mateo Searsville; about lake Comment
  CAS-BOT-BC76905  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC76914  Polypodium californicum John H. Thomas 1958-3-19 7059 San Mateo San Bruno Mountain, just north of South San Francisco. 91 Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  JEPS121479  Polypodium calirhiza Adam C. Schneider with C. Matt Guilliams 2013-2-2 1 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC237341  Polypogon monspeliensis Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park 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
  CHSC57112  Polypogon monspeliensis Steven Triano 1988-5-24 196 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH5443  Polypogon monspeliensis John H. Thomas 1973-6-15 16836 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5444  Polypogon monspeliensis John H. Thomas 1973-6-15 16836 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5447  Polypogon monspeliensis John H. Thomas 1976-10-16 18426 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC237588  Polypogon viridis George Oberlander 1950-6-3 1028 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  CAS-BOT-BC72229  Polystichum dudleyi Alice Eastwood 1933-5-31 s.n. San Mateo Butano Canyon Comment
  CAS-BOT-BC72222  Polystichum dudleyi W. R. Dudley 1905-6-19 s.n. San Mateo near Campon Pescadero Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC72226  Polystichum dudleyi Roxana S. Ferris 1920-4-24 1955 San Mateo North Fork of Peters Creek 457 Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  JROH50  Polystichum dudleyi Ann Lambrecht 2005-10-5 21 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 1 on creek bank just below redwood grove. Comment
  CAS-BOT-BC76605  Polystichum munitum Margaret Barry 1938-5-29 267 San Mateo Corte Madera Creek, near Coal Mine Ridge. Comment
  CAS-BOT-BC166964  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  JROH5512  Potamogeton foliosus subsp. foliosus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC141927  Potentilla anserina subsp. pacifica A. A. Heller 1907-4-20 8441 San Mateo Near Lake Merced. 60 Comment
  CAS-BOT-BC141931  Potentilla anserina subsp. pacifica George Oberlander 1950-5-6 925 San Mateo Below San Andreas Dam - San Francisco Watershed Reserve Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  SD37699  Potentilla glandulosa Edith A. Purer 1933-5-10 3629 San Mateo Steven's Creek Comment
  JROH3378  Primula clevelandii var. patula John H. Thomas 1977-2-27 18472 San Mateo Jasper Ridge Biological Preserve, Stanford University. Westridge end of Jasper Ridge Comment
  SEINET12054260  Prosartes hookeri Unknown 1932-1 8971 San Mateo Los Franco woods Comment
  CAS-BOT-BC517397  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC159841  Prunus cerasifera Paul Reeberg 1988-5-17 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC158171  Prunus emarginata Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Bitter-cherry [Bitter Cherry] Ridge Comment
  CAS-BOT-BC154495  Prunus ilicifolia Josephine D. Randall 1907-6-6 328 San Mateo Los Trancos Road near Stanford University Comment
  CAS-BOT-BC154501  Prunus ilicifolia Fred Hemphill 1973-5-14 809 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 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
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  UCD135023  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC356473  Pseudognaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Santa Cruz Mountain Peninsula. Near upper Mud Lake, Coal Mine ridge Comment
  JROH754  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH762  Pseudognaphalium californicum John H. Thomas 1976-5-26 18149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15820  Pseudognaphalium californicum John Rawlings, Ken Hickman 2016-7-21 1909 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-BC356865  Pseudognaphalium californicum Javier Penalosa 1963-3-9 2671 San Mateo San Bruno Mountain. Slopes southeast of 1314ft. summit 381 Comment
  CAS-BOT-BC344867  Pseudognaphalium luteoalbum Peter Rubtzoff; Roman Gankin 1975-5-21 7978 San Mateo Pond northwest of and across old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road Junction), San Bruno Mountains. Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  CAS-BOT-BC357135  Pseudognaphalium luteoalbum R. E. Frenkel 1963-12-7 326 San Mateo San Francisco Water District, along road edge, ca. 0.5 mile east of Halfmoon [Half Moon] Bay Club toward Pilarcitos Reservoir Comment
  UC1177367  Pseudognaphalium luteoalbum Peter H. Raven 1950-6-3 2273 San Mateo on the stand San Anderas Lake 121 Comment
  CAS-BOT-BC357505  Pseudognaphalium ramosissimum Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero Comment
  SEINET3145218  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  JROH808  Pseudognaphalium stramineum John Hunter Thomas 1977-6-16 18780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH810  Pseudognaphalium stramineum John Hunter Thomas 1981-7-12 20686 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  OBI4193  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 122 Comment
  UC1536874  Pseudognaphalium stramineum G. H. True Jr. 1936-6-7 489 San Mateo 2 mi s Pescadero 15 Comment
  CAS-BOT-BC361571  Pseudognaphalium stramineum John H. Thomas 1963-5-20 10133 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SJSU7541  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mt 121 Comment
  UCSC007772  Pseudognaphalium stramineum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM193082  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Bank of Pescadero Creek [? Pescadero handwriting unclear]; Santa Cruz Mountain Peninsula. Comment
  RSA384643  Pseudotsuga menziesii E. A. Purer 1932-7-18 s.n. San Mateo King s Mountain. Comment
  JROH1182  Psilocarphus tenellus John H. Thomas 1971-4-21 15764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH13  Pteridium aquilinum var. pubescens John Hunter Thomas 1981-4-5 20284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek from Redwood area to Zoology Cabin ruins Comment
  CAS-BOT-BC460839  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  JROH5770  Quercus X chasei Carol Zabel, Ann Lambrecht 2001-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast side of Jasper Ridge along lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  CAS-BOT-BC61706  Quercus agrifolia Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo Point San Bruno. On bluff near shoreline, San Bruno Mountain Comment
  CAS-BOT-BC61709  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, w of Redwood City hills 121 Comment
  HSC8087  Quercus agrifolia L. S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 122 Comment
  UCD14593  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; Comment
  UCD45065  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W. of Redwood City hills. Alt. ca. 400ft. Comment
  JROH2457  Quercus agrifolia var. agrifolia W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI14313  Quercus agrifolia var. agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 122 Comment
  SBBG32402  Quercus agrifolia var. agrifolia L. S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 121 Comment
  CAS-BOT-BC62304  Quercus chrysolepis Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain, Buckeye Canyon Comment
  JROH2479  Quercus durata var. durata Arthur Spiegler 1952-5-10 87 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2484  Quercus durata var. durata John H. Thomas 1972-8-18 16149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2487  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105388  Quercus kelloggii W. R. Dudley 1894-10-1 s.n. San Mateo Santa Cruz Mountain Peninsula, near Woodside road Comment
  CAS-BOT-BC105391  Quercus kelloggii Gertrude Anthony 1904-4-23 s.n. San Mateo Los Troncos Road (Foothills or Valley) Comment
  CAS-BOT-BC105395  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Searsville Lake Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  JROH2495  Quercus kelloggii W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  POM223170  Quercus kelloggii S. S. Berry 1909-3-13 s.n. San Mateo Road below Woodside. 91 Comment
  UCD46676  Quercus kelloggii Ira L. Wiggins 1946-5-2 s.n. San Mateo La Honda road, above Searsville Reservoir, San Mateo County, California. 457 Comment
  POM270142  Quercus lobata Lyman Benson 1932-8-1 4032 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  SEINET12034640  Quercus lobata Unknown 1929-1 7290 San Mateo Kings Mtn Comment
  SEINET12034641  Quercus lobata Unknown 1930-1 7321 San Mateo Jaspar Ridge Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  CAS-BOT-BC134780  Quercus wislizeni W. R. Dudley s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos Lake to San Andreas Lake Comment
  SEINET13954082 Image available Quercus wislizeni John Thomas Howell 1964-1 40961 San Mateo Portola State Park Comment
  CAS-BOT-BC362552  Rafinesquia californica Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade Road, Black Mt. Comment
  UC9380  Ranunculus aquatilis var. capillaceus J. Burtt Davy Jun 21 1893-Jun 23 1893 1130 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  JROH3471  Ranunculus californicus John H. Thomas 1974-4-6 17090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5899  Ranunculus californicus L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab. 178 Comment
  POM268420  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  POM268417  Ranunculus californicus Lyman Benson 1935-3-10 6256 San Mateo San Gregorio. Pacific Ocean 61 Comment
  RSA400645  Ranunculus californicus E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JEPS127782  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-3-9 48 San Mateo Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  CAS-BOT-BC378528  Ranunculus californicus var. californicus Javier Penalosa 1965-2-25 2635 San Mateo San Bruno Mtn. ravine south of Crocker Ave. 213 Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  POM269869  Ranunculus lobbii James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  POM148954  Ranunculus muricatus A. D. E. Elmer 1903-06 4661 San Mateo San Pedro. Comment
  RSA120998  Ranunculus muricatus A. D. E. Elmer 1903-06 5 ++2 San Mateo San Pedro. Comment
  POM256793  Ranunculus muricatus D. D. Keck 1940-5-19 5046 San Mateo Half Moon Bay, in low, fallow fields juct N of Tow Comment
  JEPS55061  Ranunculus orthorhynchus var. bloomeri Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  RSA230359  Ranunculus orthorhynchus var. bloomeri L. S. Rose 1937-4-30 37241 San Mateo Brisbane. 6 Comment
  OBI48701  Raphanus sativus S. Bagley 1969-3-28 s.n. San Mateo Overlooking the San Francisco Game Refuge 145 Comment
  UCD115167  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  SJSU1605  Rhamnus alaternus C. D. Duncan 1955-2-17 San Mateo residence, Menlo Park Comment
  UC565409  Rhamnus californica Chas. M. Belshaw 1936-1-25 1458 San Mateo 2.8 mi w Woodside (Kings Mountain road); South Coast Range Comment
  JROH3566  Rhamnus crocea John Hunter Thomas 1981-4-27 20503 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC305855  Rhodanthe chlorocephala subsp. rosea Elizabeth McClintock; Paul Reeberg 1988-10-3 s.n. San Mateo San Bruno Mountains. On north-facing slope of Bitter Cherry Ridge 167 Comment
  CAS-BOT-BC56666  Rhododendron occidentale W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC56669  Rhododendron occidentale W. R. Dudley 1908-9-21 s.n. San Mateo Pescadero Cr. (Iversons') Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  SEINET12215220  Ribes aureum var. gracillimum Cummings, McCallum, G. A. 1933-1 s.n. San Mateo Stevens Creek Comment
  UC11496  Ribes californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  CAS-BOT-BC92998  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  UCR70845  Ribes californicum var. californicum L. S. Rose 1949-3-18 49007 San Mateo San Francisco Bay Region, Hillsides west of Belmont 91 Comment
  SEINET13942455 Image available Ribes divaricatum Lewis S. Rose 1965-1 65008 San Mateo Searsville Lake, stream banks. Alt ca 400 ft 122 Comment
  JROH2654  Ribes divaricatum var. pubiflorum John Hunter Thomas 1985-4-25 23555 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  JROH2657  Ribes divaricatum var. pubiflorum John Hunter Thomas 1992-4-7 25132 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  RSA0025025  Ribes divaricatum var. pubiflorum L. R. Abrams 1904-4-10 s.n. San Mateo East of Crystal Springs Reservoir. Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  RSA0021679  Ribes malvaceum L. S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212831  Ribes menziesii George Oberlander 1950-4-23 822 San Mateo Pilarcitos Canyon Comment
  JROH5605  Ribes menziesii var. menziesii John Rawlings 2014-3-25 1211 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 -- one plant upslope and one downslope -- about 400 yards west of Zoology Cabin site. 80 Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  JROH2687  Ribes sanguineum var. glutinosum Carol Zabel 1989-3-29 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. Leonard's bridge (old Corte Madera Creek bridge). Comment
  UC858477  Ribes sanguineum var. glutinosum E. G. Dudley 1904-3-3 San Mateo Portola Road, bridge Santa Cruz Mountain Peninsula Comment
  RSA0019094  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  RSA0019105  Ribes sanguineum var. glutinosum D. D. Keck 1932-6-1 1786 San Mateo 3 miles north of La Honda, Santa Cruz Mountains. 366 Comment
  SEINET12220350  Ribes sanguineum var. glutinosum W. R. Dudley 1904-1 62 San Mateo Santa Cruz Peninsula, Carte de Madera Creek, Santa Cruz Mts Comment
  CAS-BOT-BC207159  Ricinus communis John H. Thomas 1967-5-25 11637 San Mateo Menlo Park, near Southern Pacific train station. Comment
  CAS-BOT-BC363085  Rigiopappus leptocladus J. I. McMurphy 1900-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Byrne's Store and Woodside Comment
  CAS-BOT-BC363093  Rigiopappus leptocladus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  JEPS25747  Romanzoffia californica L. R. Heckard with R. Bacigalupi 1961-5-14 1232 San Mateo ca. 2 mi. s. Pilarcitos Reservoir (near Stone Dam Reservoir, along Pilarcitos Creek); Pilarcitos Creek 182 Comment
  POM65453  Romanzoffia californica A. D. E. Elmer 1903-05 4482 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  UC1084381  Rorippa G. Thomas Robbins 1937-4-11 81 San Mateo along Skyline Boulevard near County Jail (s of San Francisco); s of San Francisco Comment
  SD37966  Rorippa curvisiliqua var. curvisiliqua Jane T. Turner 1933-5-15 3671 San Mateo Mud Lake Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC147631  Rosa californica C. B. Wolf 1931-8-20 2327 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  UC725850  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  JROH3758  Rosa gymnocarpa var. gymnocarpa W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3765  Rosa laevigata Carol Zabel 2004-5-19 51 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 30 feet north of main gate on Sand Hill Road. Comment
  NY335771  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  CAS-BOT-BC156575  Rubus John Thomas Howell 1938-6-4 13891 San Mateo Burlingame Comment
  CAS-BOT-BC156645  Rubus bifrons Phillip C. Wheeler 1965-7-7 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152832  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3775  Rubus parviflorus John Hunter Thomas 1982-7-8 21079 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  UCD113862  Rubus parviflorus Carolyn Lundquist 1994-5-30 25 San Mateo Henrik Ibsen Park, Woodside, 13800 Skyline Blvd. 609 Comment
  POM140137  Rubus parviflorus var. velutinus Edward L. Greene 1902-1-15 245 San Mateo West side King's Mountain. Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  UCR51532  Rubus spectabilis var. franciscanus R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC156595  Rubus ulmifolius Ira L. Wiggins 1980-8-29 22263 San Mateo North bank of San Francisquito Creek, on upstream side of Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC157072  Rubus ursinus L. R. Abrams 1914-10-14 5129 San Mateo [Tunitos Canon] Tunitas Canyon Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  RSA152260  Rubus ursinus I. L. Wiggins 1925-04 1660 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  CAS-BOT-BC422083  Rumex acetosella John H. Thomas 1963-5-20 10144 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC422088  Rumex acetosella E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Top of ridge, east of Nike station. Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC422291  Rumex californicus John H. Thomas 1966-5-25 11636 San Mateo Menlo Park, near Southern Pacific train station. Comment
  CAS-BOT-BC421824  Rumex conglomeratus Josephine D. Randall 1907-7-24 290 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC421569  Rumex crassus John H. Thomas 1964-6-19 10419 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH5571  Rumex crispus John Rawlings 2013-5-21 1164 San Mateo Jasper Ridge Biological Preserve, Stanford University. In ditch on east side of Rd C uphilll from bridge across San Francisquito Creek. 98 Comment
  CAS-BOT-BC433359  Rumex crispus Ned Cahill 1974-5-3 275 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433363  Rumex crispus W. R. Dudley 1893-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC433368  Rumex crispus J. H. Thomas 1949-4-2 222 A San Mateo Palo Alto Yacht Club. Comment
  CAS-BOT-BC433543  Rumex fueginus Ira L. Wiggins 1935-6-29 8049 San Mateo Near mouth of Pescadero Creek, 2 miles west of Pescadero Comment
  UC1094021  Rumex maritimus Lewis S. Rose 1956-8-13 56143 San Mateo Princeton 3 Comment
  CAS-BOT-BC433749  Rumex persicarioides Ira L. Wiggins 1929-8-24 3870 San Mateo Moss Beach Comment
  UC202769  Rumex pulcher A. D. E. Elmer Jul 1903 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC433823  Rumex pulcher Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Ridge above Buckeye Canyon Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC1191281  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1946-8-28 13080 San Mateo n of San Francisco county prison Comment
  CAS-BOT-BC434134  Rumex transitorius John H. Thomas 1964-6-19 10426 San Mateo 0.9 miles south of Tunitas Creek near Coast Highway. 60 Comment
  JROH2213  Rupertia physodes John H. Thomas 1974-6-27 17455 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH2217  Rupertia physodes John H. Thomas 1977-4-19 18534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2220  Rupertia physodes John Hunter Thomas 1981-5-5 20542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2222  Rupertia physodes John Hunter Thomas 1981-5-14 20571 San Mateo Jasper Ridge Biological Preserve, Stanford University; old shack riders shack Comment
  CAS-BOT-BC454107  Ruppia cirrhosa James McMurphy 1909-10-17 s.n. San Mateo San Gregorio Comment
  RSA800143  Ruta chalepensis Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mi from San Bruno Mtn. Park entrance. Comment
  CDA38781  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area; Sweeney Ridge, Baquiano Trail. 0 Comment
  POM216545  Salicornia virginica D. D. Keck 1931-9-27 1266 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC103342  Salix bonplandiana W. R. Dudley 1894-4-21 s.n. San Mateo By bridge above San Mateo Comment
  OBI9815  Salix lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC125375  Salix lasiandra var. lasiandra Josephine D. Randall 1908-3-28 s.n. San Mateo Kings Mt. Road Comment
  JROH3870  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC125371  Salix lasiandra var. lasiandra W. R. Dudley 1900-3-17 s.n. San Mateo South side of Montara Mts. along road Comment
  CAS-BOT-BC107141  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near junction of San Francisquito and Los Trancos Creeks, about 2 miles from Stanford University Comment
  HSC19995  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 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
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UC1303068  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo near junction of San Francisquito and Los Trancos creeks (about 2 mi from Stanford University) Comment
  CAS-BOT-BC108252  Salix lasiolepis var. bigelovii Alice Eastwood 1920-3-15 s.n. San Mateo San Bruno Hills Comment
  RSA119045  Salix lucida subsp. lasiandra L. S. Rose 1958-3-19 58013 San Mateo Princeton. 6 Comment
  CAS-BOT-BC129069  Salix scouleriana A. D. E. Elmer 1903-6-1 4864 San Mateo Iverson's Place on the Pescadero Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  CAS-BOT-BC126486  Salix sitchensis Walter Knight; Irja Knight 1965-2-28 866 San Mateo San Bruno Mt., in Colma Canyon Comment
  POM223618  Salix sitchensis S. S. Berry 1909-3-13 s.n. San Mateo Kings Mtn Rd. 457 Comment
  RSA169344  Salix sitchensis L. S. Rose 1964-3-14 64006 San Mateo Princeton. 6 Comment
  CAS-BOT-BC176847  Salsola australis Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Guadalupe Canyon Parkway Comment
  CDA3228  Salsola soda T. C. Fuller 1969-6-12 18550 San Mateo West end of Dumbarton Bridge, Menlo Park. 0 Comment
  RSA152266  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC634908  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San. Bruno Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  JEPS49086  Sambucus mexicana Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple; stream banks 91 Comment
  CAS-BOT-BC246015  Sambucus nigra subsp. caerulea Fred Hemphill 1973-3-9 639 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC236451  Sambucus racemosa subsp. racemosa Philip Wheeler 1965-5-18 s.n. San Mateo Base of mountain near Olivet Cemetery, San Bruno Mountain Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC236460  Sambucus racemosa subsp. racemosa A. D. E. Elmer 1903-6-1 5080 San Mateo Butano Creek Comment
  CDA3947  Sanguisorba minor subsp. muricata T. C. Fuller 1974-5-21 19992 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  OBI8787  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mts. N end 122 Comment
  SEINET5625230 Image available Sanicula arctopoides Unknown 1907-1 8444 San Mateo Near Lake Merced Comment
  RSA15309  Sanicula bipinnatifida C. B. Wolf 1927-4-3 279 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  JROH343  Sanicula crassicaulis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  UCD166152  Sanicula crassicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 736 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 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
  RSA175250  Satureja douglasii Robert F. Thorne, P. Everett 1963-6-9 32244 San Mateo On top of San Bruno Mountain. 335 Comment
  POM142249  Saxifraga californica C. F. Baker 1902-4-6 465 San Mateo Crystal Springs Lake. Comment
  RSA134131  Scandix pecten-veneris John H. Thomas 1955-4-6 4830 San Mateo Disturbed ground along San Francisco Bay, about 1 mi. SE of Broadway, Burlingame. 5 Comment
  JROH363  Scandix pecten-veneris John Hunter Thomas 1987-4-30 24217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC111414  Schoenoplectus acutus var. occidentalis Elizabeth McClintock; P. Reeberg 1989-8-19 s.n. San Mateo P. G. & E. Marsh, San Bruno Mountains. Comment
  CAS-BOT-BC111605  Schoenoplectus californicus Herbert L. Mason; Verne Grant 1946-8-28 13092 San Mateo Pond, Highway 5, about 3 miles south of Daly City Road. Comment
  RSA365994  Schoenoplectus pungens Edith A. Purer 1933-7-27 s.n. San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC111780  Schoenoplectus pungens Peter Rubtzoff; Elizabeth McClintock; P. Reeberg 1989-6-3 s.n. San Mateo At mouth of drainage culvert, PG&E marsh. 1 Comment
  UC1100796  Scirpus californicus Herbert L. Mason 1946-8-28 13092 San Mateo Pond Highway 5 about 3 mi s Daly City Road; s of Daly City Road, pond Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) Comment
  UC75027  Scirpus cernuus Dr. E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  UC840923  Scirpus maritimus Alice Eastwood 1915-6-13 4714 San Mateo Granada Comment
  JROH4425  Scirpus microcarpus John Rawlings, Carol Zabel 2006-5-8 0905 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off east end of Leonard's Bridge, Trail 13, lakeside of bridge. 106 Comment
  JROH5856  Scirpus microcarpus John Rawlings, Carol Zabel 2006-6-12 0906 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12. Section 31B5 106 Comment
  CAS-BOT-BC519009  Scoliopus bigelovii W. E. Mason 1917-4-1 s. n. San Mateo La Honda Grade Comment
  CAS-BOT-BC519019  Scoliopus bigelovii Alice Eastwood 1933-4-30 s. n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD124850  Scrophularia californica R. S. Woglum 1935-5-25 1167 San Mateo Southeast San Mateo County: San Francisco area, Skyline Drive to Big Basin. Comment
  RSA427185  Scrophularia californica subsp. floribunda Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA427186  Scrophularia californica subsp. floribunda E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  JROH2889  Scutellaria tuberosa John Hunter Thomas 1987-4-23 24208 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0074736  Sedum spathulifolium A. D. E. Elmer 1903-06 4550 San Mateo Toward San Mateo from Crystal Springs Lake. Comment
  UC36172  Senecio aronicoides J. Burtt Davy 1895-4-20 1069 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC363735  Senecio hydrophilus Alice Eastwood; John Thomas Howell 1938-6-26 6058 San Mateo Near Pescadero Comment
  RSA132965  Senecio mikanioides John H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno. Comment
  RSA195550  Senecio mikanioides John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  JROH686  Senecio minimus Toni Corelli 2006-9-20 329 a San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 12 along Corta Madera Creek 106 Comment
  JROH687  Senecio minimus Toni Corelli 2008-3-9 345 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south of Leonard's Bridge 106 Comment
  CAS-BOT-BC364240  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC364633  Senecio vulgaris Fred Hemphill 1973-4-8 625 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC364638  Senecio vulgaris John H. Thomas 1968-12-18 14869 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC80294  Sequoia sempervirens William R. Dudley 1894-2-25 s.n. San Mateo near Summit Springs Comment
  SBBG52369  Sequoia sempervirens F. C. Boutin 1968-3-25 1839 San Mateo Palo Alto, from the "Palo Alto" near the train bridge over San Francisquito Crk Comment
  SEINET3876338 Image available Sequoia sempervirens Clipper Watene 1965-7-31 40 San Mateo Along Hwy. 84, one mi north of La Honda.; 0 Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  JROH3833  Sherardia arvensis John H. Thomas 1974-4-4 17077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3834  Sherardia arvensis John Hunter Thomas 1984-5-3 23341 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below Rattlesnake Rock Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  UCSB11675  Sidalcea malviflora Connelly, Dianne 1962-4-21 San Mateo Above main office of Westborough homes development, 10 miles north of San Francisco, Skyline Boulevard 121 Comment
  OBI48733  Sidalcea malviflora subsp. laciniata S. Bagley 1969-3-28 s.n. San Mateo Near the San Francisco Game Refuge 145 Comment
  SD67293  Sidalcea malviflora subsp. malviflora Darley F. Howe 1967-4-13 4343 San Mateo Pebble Beach Comment
  POM151335  Silene californica C. F. Baker 1903-6-30 33522 San Mateo Crystal Springs Comment
  UC311135  Silene californica A. D. E. Elmer June, 1903 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC384433  Silene coronaria Alexander Locke 1963-5-19 32 San Mateo 714 Alameda de los Pulgas, Belmont Comment
  JROH1730  Silene gallica John H. Thomas 1965-4-28 10595 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1732  Silene gallica John H. Thomas 1971-4-10 15757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD98646  Silene gallica W. A. Harvey; J. M. Tucker 1948-6-28 1696 San Mateo 3 miles north of Pescadero. Comment
  JEPS83066  Silene scouleri subsp. grandis Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 447 San Mateo ca 1.4 km w San Andreas Dam (on sw-facing slope above last curve in gravel ridge rd before intersection above San Andreas Dam, n end Sawyer Ridge); San Francisco Watershed Reserve, n end Sawyer Ridge 312 Comment
  POM272585  Sinapis arvensis Lyman Benson 1939-7-1 9677 a San Mateo San Francisco City Limits. 30 Comment
  JEPS127795  Sisyrinchium bellum Adam C. Schneider with C. Matt Guilliams 2013-4-7 66 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  POM169079  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake. Comment
  SEINET3876420  Sisyrinchium bellum Lewis S. Rose 1961-4-5 61031 San Mateo San Bruno Mountains.; 0 366 Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  POM291007  Sisyrinchium bellum Lyman Benson 1931-3-15 2640 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 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
  UCR115445  Smilacina stellata Don Pendleton 1996-4-5 s.n. San Mateo San Francisco Bay region, Edgewood County Park, western edge of Redwood City, along Edgewood Rd. north of the parking lot for the park 122 Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SD38286  Solanum douglasii Edith A. Purer 1933-7-27 5389 San Mateo partially stabilized areas in sand dunes, two miles south of Pigeon Point Comment
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. Comment
  UC1332475  Solanum furcatum G. L. Stebbins Jr. and E. F. Paddock 1940-9-7 101 San Mateo at junction of three upper forks of San Pedro Creek (1 mi from seashore, San Pedro Valley); San Pedro Valley 30 Comment
  UCD165016  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA34830  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1945-9-22 11196 San Mateo Moss Beach. Comment
  SEINET12274849  Solanum sarachoides E. H. Graham 1931-1 6942 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  NY820568  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside. Canyons in Hills Comment
  RSA295084  Solanum umbelliferum Robert A. Norris, John L. Inase 1981-1-18 4093 San Mateo Near Ano Nuevo Point. (near Santa Cruz Co. line) Comment
  SEINET3162583  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake 183 Comment
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  NY820593  Solanum umbelliferum D. Demarée 1932-4-9 8981 San Mateo Los Troncos Woods Comment
  UCD136058  Solidago Collector Unknown 1925-6-15 1662 San Mateo Pescadero - Santa Cruz Road. Comment
  CDA8732  Solidago canadensis A. Roach 1972-11-17 San Mateo Railroad right-of-way, South San Francisco. 0 Comment
  RSA18440  Solidago canadensis subsp. elongata C. B. Wolf 1927-6-29 568 San Mateo 3 miles south of San Gregorio. Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC365187  Solidago velutina subsp. californica Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  RSA60662  Soliva sessilis I. L. Wiggins 1950-5-20 12352 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC365933  Soliva sessilis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Slope at Flower Garden adjacent to April Brook Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH1242  Soliva sessilis John Hunter Thomas 1978-4-25 19147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB24002  Sonchus Sandra Hutchinson 1964-3-22 7 San Mateo collected at 908 Patricia Avenue, in San Mateo 908 Patricia avenue, and San Mateo Comment
  CAS-BOT-BC374492  Sonchus asper John H. Thomas 1971-5-2 15869 B San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  CAS-BOT-BC374707  Sonchus oleraceus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Horseshoe Ridge Comment
  RSA128377  Sonchus oleraceus P. H. Raven 1950-6-3 2209 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC236581  Sorghum halepense John H. Thomas 1968-10-6 14846 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance, east of Palo Alto Comment
  JROH5523  Sparganium eurycarpum var. eurycarpum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake near bridge. Comment
  JROH5524  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1979-5-22 19574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1751042  Spartina foliosa Annetta M. Carter with Mary Bowerman, Mrs. Bowerman, Betty Wood, Florence Little 1934-10-21 736 San Mateo Dumbarton Bridge Comment
  JROH1746  Spergula arvensis John Hunter Thomas 1981-4-7 20297 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1759  Spergularia John Hunter Thomas 1979-9-9 19721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1763  Spergularia John Hunter Thomas 1983-5-23 22244 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near shack side and low-flow crossing Comment
  JROH1764  Spergularia John Hunter Thomas 1986-4-30 23984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1767  Spergularia John Hunter Thomas 1988-4-27 24411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC56977  Spergularia macrotheca Josephine Boyd 1988-5-3 San Mateo On Sand Point in the Menlo Park Baylands at the e end of The Embarcadero, ca 0.5 mi e of the Palo Alto Municipal Airport and 0.3 mi nw of the San Mateo County-Santa Clara County boundary. 4 Comment
  CAS-BOT-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390470  Spergularia macrotheca var. macrotheca W. S. Atkinson 1901-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pescadero Creek Comment
  JROH5582  Spergularia rubra John Rawlings 2013-7-13 1191 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards downstream from the Low Flow Crossing 80 Comment
  CAS-BOT-BC390699  Spergularia rubra Ira L. Wiggins 1974-7-27 22108 San Mateo Crest of northerly bank of San Francisquito Creek, opposite 1455 Woodland Avenue, Menlo Park Comment
  CAS-BOT-BC390701  Spergularia rubra Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Top of ridge above Brisbane Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  UCR240606  Stachys T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3530 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
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2906  Stachys bullata John Hunter Thomas 1983-6-29 22699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD125820  Stachys bullata G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6771 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  UCSC011282  Stachys bullata Unknown 1972-5-20 s.n. San Mateo Waddell Creek area Comment
  RSA107098  Stachys chamissonis L. S. Rose 1956-7-2 56118 San Mateo Emerald Lake, hills of Redwood City. 183 Comment
  JEPS82914  Stachys pycnantha Roy E. Buck and Randall A. Morgan 1983-6-7 334 San Mateo San Francisco Watershed Reserve; in triangle of Edgewood and Canada Rds and Hwy I-280 152 Comment
  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
  CAS-BOT-BC5588  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road, about 3 miles beyond San Mateo 91 Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  UCSC007784  Stellaria media Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1789  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5733  Stellaria nitens John Rawlings 2013-4-16 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension south of the Dengler Transect after a short uphill section 84 Comment
  CAS-BOT-BC398981  Stellaria nitens George Oberlander 1950-3-11 446 San Mateo Top of Sawyer Ridge Comment
  CAS-BOT-BC398985  Stellaria nitens Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch Comment
  RSA18514  Stephanomeria virgata C. B. Wolf 1927-7-14 606 San Mateo Summit of Kings Mountain Rd. Comment
  JROH5323  Stipa lepida John H. Thomas 1977-5-14 18610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5324  Stipa lepida John Hunter Thomas 1981-5-25 20618 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC423013  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  JEPS29414  Symphoricarpos albus var. laevigatus L. R. Heckard 1961-7-16 1261 San Mateo near San Bruno Mt. summit (ne of transmitting station KQED); San Bruno Mt. 335 Comment
  RSA152163  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
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Sep 30 2011
  RSA770504  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-25 8466 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC271649  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC99061  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain - Lower part of Colma Canyon Comment
  CAS-BOT-BC99058  Symphyotrichum chilense David D. Keck 1930-10-15 989 San Mateo South-west of Woodside 457 Comment
  CAS-BOT-BC99060  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain - West Power Line Ridge at Ridge Road Comment
  JEPS17916  Symphyotrichum subspicatum Rimo Bacigalupi 1955-8-4 5449 San Mateo just n of lighthouse Montara Point ((at town of Montara)); Montara Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  JEPS81901  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20719 San Mateo Northeast slope Montara Mt. Montara Mt. 243 Comment
  CAS-BOT-BC353469  Taraxacum officinale Peter Rubtzoff 1976-3-28 8449 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH2999  Taraxia ovata James Newman 1951-4-21 7 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UCD107044  Taraxia ovata Ogden C. Riddle 1941-4-6 66 San Mateo Finney Ridge, near Half Moon Bay. 243 Comment
  CAS-BOT-BC447476  Tellima grandiflora Philip C. Wheeler; Elizabeth McClintock 1967-6-11 s.n. San Mateo North facing brushy slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC438264  Tetragonia tetragonoides Ira L. Wiggins 1935-8-24 8161 San Mateo At Moss Beach Comment
  CAS-BOT-BC438268  Tetragonia tetragonoides Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH3505  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  CAS-BOT-BC399848  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 A San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399843  Thalictrum polycarpum W. R. Dudley 1906-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Road - West of Redwood City Comment
  CAS-BOT-BC399854  Thalictrum polycarpum Josephine D. Randall 1908-5-1 s.n. San Mateo Santa Cruz Peninsula. Corte de Madera Canon [Canyon] near Alpine Road Comment
  JROH379  Torilis arvensis John Hunter Thomas 1990-7-4 24872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH382  Torilis nodosa John H. Thomas 1977-5-14 18611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH403  Torilis nodosa John Hunter Thomas 1989-5-9 24697 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  CAS-BOT-BC81496  Torreya californica W. R. D. 1894-3-24 s.n. San Mateo near fork of Alpine and San Gregorio road, La Honda Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  CAS-BOT-BC81499  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  RSA347049  Torreya californica Lyman Benson 1930-6-14 2156 San Mateo Small creek, south La Honda, Santa Cruz Mountain Range 244 Comment
  CAS-BOT-BC172905  Toxicodendron diversilobum Ned Cahill 1974-5-13 241 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Located within five feet of the stream. Comment
  CAS-BOT-BC377137  Tragopogon porrifolius Phillip Wheeler 1965-5-28 s.n. San Mateo San Bruno Mountain. Sierra Point Area Comment
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCD107567  Trifolium albopurpureum Michael A. Vincent; Ethan H. Freid 1998-4-9 8202 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JROH2245  Trifolium bifidum var. bifidum John Hunter Thomas 1985-5-2 23584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2253  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2254  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC725794  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo near San Mateo (on Half Moon Bay Rd) Comment
  JROH2269  Trifolium depauperatum var. truncatum John H. Thomas 1964-4-19 10320 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2279  Trifolium dubium John Hunter Thomas 1978-4-25 19150 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  UCSC005462  Trifolium gracilentum Randall Morgan 1995-6-6 2728 San Mateo Bean Hollow State Beach Comment
  SJSU659  Trifolium grayi J. E. Hagerty 1950-5-20 San Mateo Pescadero Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2336  Trifolium hybridum John Hunter Thomas 1983-6-2 22326 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing Comment
  UC202836  Trifolium macraei A. D. E. Elmer May, 1903 4713 San Mateo Lake Merced Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH2340  Trifolium oliganthum John H. Thomas 1968-4-19 14306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006098  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  UC867032  Trifolium variegatum T. R. Abrams 1915-6-14 5564 San Mateo Kings Mtn Rd Comment
  LA205198  Trifolium variegatum LeRoy Abrams; 1914-4-2 5077 San Mateo Menlo Heights Comment
  UCSC006363  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  CDA28079  Trifolium willdenovii D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH2392  Trifolium willdenovii G. C. Kimber & Lucile Roush 1918-5-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2403  Trifolium willdenovii John Hunter Thomas 1978-4-20 19079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2414  Trifolium willdenovii Carol Zabel 1989-4-19 13 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226853  Trifolium willdenovii L. R. Abrams 1914-4-2 5075 San Mateo Menlo Heights. Comment
  UCD164094  Trifolium wormskioldii Peter Rubtzoff 1978-5-5 9166 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC451909  Triglochin maritima Ira L. Wiggins 1946-4-30 11200 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206466  Trillium chloropetalum Le Roy Abrams 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  SD27761  Trillium chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo I(c) mile inland from Pescadero. 14 Comment
  CAS-BOT-BC133443  Trillium ovatum D. T. Fullaway 1908-4-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC133448  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  UC765421  Trillium ovatum R. F. Hoover 1939-3-3 3895 San Mateo above Portola (on La Honda Rd.) Comment
  CAS-BOT-BC238562  Triphysaria floribunda L. R. A. 1902-4-13 2321 San Mateo Lake San Andreas Comment
  CAS-BOT-BC238566  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo One mile south of San Mateo, on highway US 101 Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  JEPS10445  Triphysaria versicolor subsp. versicolor Adele Lewis Grant 1917-5-6 934 San Mateo Pebble Beach 3 Comment
  UC419721  Triphysaria versicolor subsp. versicolor Mrs. H. P. Bracelin 1930-10-26 132 San Mateo Ocean Rd between Half Moon Bay and Santa Cruz near Pidgeon Point; Ocean Rd btw Half Moon Bay and Santa Cruz Comment
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  POM277006  Triteleia ixioides subsp. ixioides Lyman Benson 1930-5-3 2093 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  UC729638  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 0.25 mi n base of La Honda grade (on rd to Woodside) 121 Comment
  CAS-BOT-BC523099  Triteleia ixioides subsp. ixioides J. H. Thomas 1949-5-7 504 San Mateo King's Mountain Comment
  SJSU9940  Triteleia ixioides subsp. ixioides L. S. Chan 1955-6-4 117 San Mateo Kings Mt Rd, 1.5 mi W of Woodside, E slope Santa Cruz Mts 243 Comment
  JROH4748  Triteleia laxa John H. Thomas 1973-4-14 16551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  JROH1625  Tropidocarpum gracile H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north bend of San Francisquito Creek Comment
  CAS-BOT-BC74053  Turritis glabra John F. Emmel 1971-4-24 344 San Mateo 0.25 mile southwest of Natalie M. Lipman School, south edge of Guadalupe Valley, west edge of Brisbane. 60 Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace Comment
  CDA4351  Ulex europaeus Ed Finley 1988-12-1 San Mateo Along south side of Hickey Boulevard, to 0.1 east of I-280, Daly City. 0 Comment
  JROH5760  Ulex europaeus John Rawlings, Bob Dodge 2016-3-1 1676 San Mateo Jasper Ridge Biological Preserve, Stanford University; hidden in plain view adjacent to the Bike Bowl 50 m west of Sun Field Station visitor parking. Comment
  SJSU2612  Ulex europaeus D. M. Dobrinen 1966-4-6 27 San Mateo N end Crystal Springs Lakes Comment
  CAS-BOT-BC91222  Umbellularia californica William R. Dudley 1894-12-3 s.n. San Mateo Near Searsville and San Fracisquito Creek opposite the Residence. 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
  JROH136  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA132457  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  UC1244713  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JROH1290  Uropappus lindleyi John H. Thomas 1963-5-12 10084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403970  Urtica dioica subsp. gracilis Dennis W. Woodland 1970-8-14 1624 San Mateo At Stage Road and Seaside School Road on NE corner Comment
  RSA195561  Urtica urens John H. Thomas 1967-2-9 12405 San Mateo Half Moon Bay. Near Mills St. and Purissima St. Comment
  CAS-BOT-BC199177  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC238185  Vaccinium cespitosum Peter W. Fritsch; Doug Allshouse 2012-10-19 1950 San Mateo San Bruno Mountain County Park, west end of San Bruno Mountain, at Kamchatka Point just below the Ridge Trail 318 Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  CAS-BOT-BC199349  Vaccinium ovatum W. R. Dudley 1900-3-16 s.n. San Mateo By stage road from King's Mt. to Spanish town Comment
  CAS-BOT-BC199359  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC199364  Vaccinium ovatum Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC199368  Vaccinium ovatum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC199373  Vaccinium ovatum Javier Penalosa 1963-3-9 2693 San Mateo Ravine 1/2 mi. east of 1314ft. summit 304 Comment
  CAS-BOT-BC199374  Vaccinium ovatum Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  SD38450  Vaccinium ovatum Edith A. Purer 1933-5-24 3642 San Mateo Skyline Boulevard. Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UCD118098  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 609 Comment
  SEINET3559610 Image available Vagnera sessilifolia Lewis S. Rose 1933-4-9 33070 San Mateo Belmont. Comment
  CAS-BOT-BC76144  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Pescadero Creek. Comment
  CAS-BOT-BC76145  Vancouveria planipetala W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. By road this side of Iverson's near Peter's Creek. Comment
  RSA411631  Verbena lasiostachys E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  SD38891  Verbena lasiostachys Cummings, Mc Callum 1933-5-24 3726 San Mateo Open Hills in Spring Valley Comment
  JROH4150  Veronica arvensis John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1252125  Veronica filiformis Mrs. M. C. O'Neil Jr. 1964-5-7 San Mateo 3805 Fernwood Street, San Mateo San Mateo; 3805 Fernwood Street, San Mateo Comment
  JROH4152  Veronica persica John H. Thomas 1964-4-11 10308 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the nw of the dam Comment
  SEINET12157683  Vicia americana M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Point Comment
  POM278056  Vicia americana var. americana Lyman D. Benson 1935-5-5 6530 San Mateo Lake Searsville. 152 Comment
  RSA278067  Vicia americana var. americana Lyman D. Benson 1930-5-1 2054 San Mateo Stanford University. 91 Comment
  UC673611  Vicia americana var. americana Herbert L. Mason 1927-4-23 3675 a San Mateo summit of road from La Honda to Pescadero Creek Comment
  UCD108698  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Near Lake Merced. Comment
  JROH2431  Vicia benghalensis John Hunter Thomas 1989-5-23 24749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  SD27838  Vicia cracca Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek, back of Stanford University, roadsides Comment
  SJSU1013  Vicia gigantea J. E. Hagerty 1950-5-20 San Mateo Pescadero Beach Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB8438  Vicia sativa subsp. sativa Haller, John 1950-4-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  UCD108798  Vicia tetrasperma G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast: Purissima Road. E of Half Moon Bay, 1.9 miles E of CA-1. 168 Comment
  JROH2454  Vicia villosa subsp. varia John Rawlings 2012-5-15 1114 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road B vicinity of Dennis Martin Marker. 79 Comment
  SBBG50995  Vinca major J. Doty 1969-3-27 611 San Mateo W side of State Hwy 1, ca. 4 mi N of San Gregorio State Beach Park 30 Comment
  LA209918  Viola adunca Ira L. Wiggins; 1931-2-21 5091 a San Mateo Pescadero Beach Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  CAS-BOT-BC536571  Viola glabella John Hunter Thomas 1954-4-3 3814 San Mateo La Honda Creek, about 1 mi N of La Honda 152 Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536575  Viola glabella George Oberlander 1949-6-25 200 San Mateo San Francisco Watershed Reserve: southern boundary Comment
  RSA10996  Viola glabella Carl B. Wolf 1928-3-14 1533 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  RSA181578  Viola ocellata E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA101046  Viola ocellata G. Oberlander 1949-7-30 353 San Mateo On Cahill Ridge, San Francisco Watershed Reserve. Comment
  RSA130977  Viola ocellata Lucile Roush