Search Results — 2000 specimen records retrieved (1347 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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41407  Abronia latifolia Edith A. Purer 1932-7-18 4012 San Mateo Half Moon Bay Comment
  CAS-BOT-BC383897  Abronia latifolia W. R. Dudley 1891-7-5 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  RSA0025757  Abronia latifolia Lyman Benson 1930-8-15 2563 San Mateo San Gregorio. Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  JROH2957  Abutilon theophrasti Carol Zabel 2006-8-21 62 San Mateo Jasper Ridge Biological Preserve, Stanford University; resident ranger's yard Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SD27820  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach, south of Pescadero Comment
  UC466763  Acaena pinnatifida var. californica R. L. Pendleton 1907-4-20 631 San Mateo Colma 60 Comment
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 Comment
  CAS-BOT-BC219601  Acanthomintha duttonii Lewis S. Rose 1936-5-28 36303 San Mateo Emerald Lake, W. of Redwood City 91 Comment
  CAS-BOT-BC219610  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  SD4349  Acanthomintha obovata Harry A. dutton, H. A. Walker May 26 & 29, 1915 3819 San Mateo Near the Menlo Golf Club. Found on a small area in sandy soil, on a hillside sloping to the south. Comment
  RSA0076539  Acanthomintha obovata subsp. duttonii Paul R. Hichborn 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
  CAS-BOT-BC333208  Acer macrophyllum Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo San Bruno Mountains. Above Margaret Ave., Brisbane Comment
  JROH168  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  POM136914  Acer negundo subsp. californicum C. F. Baker 1902-5-15 472 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC336921  Acer negundo var. californicum Carl B. Wolf 1930-11-5 1809 San Mateo 4 miles west of La Honda, Santa Cruz Mtns. 91 Comment
  CHSC67013  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Hwy. 1. On roadcut 100 ft. +/- above the ocean. Comment
  UCSC004912  Achillea millefolium Monica Larenas 1985-6-1 16 San Mateo Hwy 92, summit near intersection with Skyline Blvd Comment
  JROH461  Achyrachaena mollis John H. Thomas 1970-4-28 15607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH465  Achyrachaena mollis John H. Thomas 1976-4-30 18101 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC29103  Achyrachaena mollis W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  JROH2060  Acmispon americanus var. americanus John Hunter Thomas 1977-6-16 18755 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH2062  Acmispon americanus var. americanus John Hunter Thomas 1983-5-23 22245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS128393  Acmispon wrangelianus Adam C. Schneider 2013-5-17 131 San Mateo Crystal Springs Reservoir. Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37804  Acmispon wrangelianus Janet Turner 1933-4-18 3675 San Mateo Emerald Lake. Comment
  JROH2088  Acmispon wrangelianus Duncan M. Porter 1960-4-22 660 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-4 Comment
  CAS-BOT-BC391673  Actaea rubra A. D. E. Elmer 1903-5-1 4703 San Mateo Butano Creek Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC139951  Adenostoma fasciculatum Fred Hemphill 1973-4-15 660 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC859034  Adenostoma fasciculatum Lewis S. Rose 1932-5-22 32259 San Mateo Belmont Comment
  JROH3587  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1975-5-2 17846 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  RSA18438  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1927-6-29 570 San Mateo Near La Honda, Santa Cruz Mts. Comment
  CAS-BOT-BC65515  Adiantum aleuticum George Oberlander 1950-3-11 440 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC65516  Adiantum aleuticum J. H. Thomas 1950-4-8 1465 San Mateo Boulder Creek Canyon, about 1 1/2 mile NW of city of Boulder Creek 274 Comment
  JROH93  Adiantum jordanii John Hunter Thomas 1982-11-8 21257 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  SEINET3153091  Adiantum jordanii L. S. Rose 1939-5-13 39113 San Mateo Canyon W of Burlingame 61 Comment
  UC811122  Adiantum jordanii Lewis S. Rose 1939-5-13 39113 San Mateo canyon w of Burlingame 60 Comment
  RSA15284  Adiantum jordanii C. B. Wolf 1927-4-3 252 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JEPS118143  Aeonium simsii Dean W. Taylor with Alison Colwell 2005-5-10 19306 San Mateo Pacifica, sea bluffs between Shelter Cove and Pacifica State Beach 16 Comment
  JROH2708  Aesculus californica John H. Thomas 1971-5-30 15972 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  JROH2710  Aesculus californica John H. Thomas 1975-6-5 17946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland below Searsville Dam. 86 Comment
  LA16623  Aesculus californica C. B. Wolf; 1934-11-13 6242 San Mateo Menlo Park, at Cambridge Ave. & Cornell Rd., NW of San Francisquito Creek 15 Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  RSA18303  Aesculus californica Carl B. Wolf 1927-5-31 413 San Mateo North end of Searsville Lake. Comment
  CHSC397  Agoseris apargioides V. Holt 1943-4-21 San Mateo San Mateo 30 Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH485  Agoseris grandiflora var. grandiflora John Hunter Thomas 1981-5-25 20638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC15241  Agoseris hirsuta Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  RSA116649  Agoseris hirsuta W. R. Dudley 1906-6-11 s.n. San Mateo In field E of Kings Mt. House Comment
  UC29336  Agoseris hirsuta Michener and Bioletti 1892-5-1 San Mateo Comment
  UCD52000  Agrostis densiflora Beecher Crampton 1962-6-11 6489 San Mateo northern city limits of Pacifica, State Hwy. 1 just s.w. of its junction with Skyline Blvd. Comment
  UCD37960  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  JROH5781  Agrostis microphylla John Rawlings 2016-5-3 1777 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in Serpentine prairie (Area C) 170 Comment
  CAS-BOT-BC138952  Agrostis pallens Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Quarry Road. Comment
  JROH4789  Agrostis pallens John H. Thomas 1971-5-30 15964 San Mateo Jasper Ridge Biological Preserve, Stanford University 128 Comment
  UCD53094  Agrostis pallens August L. Hormay 1932-5-29 s.n. San Mateo San Mateo County. Comment
  SEINET200165 Image available Agrostis semiverticillata Malcolm A. Nobbs, S. Galen Smith 1949-8-26 1607 San Mateo About 1 mile south of Pigeon Point. Comment
  JROH4806  Agrostis stolonifera John Rawlings 2008-7-23 1046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek, about 200 yards downstream from the Low Flow Crossing. 95 Comment
  JEPS101122  Aira caryophyllea Dean W. Taylor 1991-5-20 11787 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  CAS-BOT-BC138234  Aira caryophyllea var. caryophyllea David D. Keck 1932-5-6 1480 San Mateo Just west of Millbrae Highlands. 50 Comment
  CAS-BOT-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  UC843252  Allium falcifolium Lewis S. Rose 1935-4-16 35095 San Mateo w Redwood City; Emerald Lake Comment
  CAS-BOT-BC469038  Allium falcifolium Lawrence Beane 1949-4-23 188 San Mateo Hillsides west of Redwood City Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  JROH4560  Allium peninsulare var. franciscanum John Hunter Thomas 1986-5-8 24027 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA10362  Allium peninsulare var. franciscanum H. A. Barker 1926-5-5 594 San Mateo Near Searsville Lake Comment
  CAS-BOT-BC170156  Alnus rhombifolia W. R. Dudley 1901-1-19 s.n. San Mateo Coal Mine Canon [canyon]. Santa Cruz Peninsula Comment
  CAS-BOT-BC169345  Alnus rubra W. R. Dudley 1894-3-26 s.n. San Mateo Along San Gregorio Creek below town. Santa Cruz Penisula Comment
  SEINET10919408  Alnus rubra LeRoy R. Abrams Abrams s.n. San Mateo Near Rescadero on road to Half-Moon Bay. Santa Cruz Mountain Peninsula. 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
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  SD39996  Ambrosia chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 miles south of Pigeon Point on open dune areas Comment
  UC1543058  Ambrosia chamissonis Donald G. Nelson 1938-7-28 579 San Mateo Moss Beach Comment
  SEINET11855123  Ambrosia chamissonis L. S. Rose 1935-1 San Mateo Granada 3 Comment
  POM87791  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake between the Mts. Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  CAS-BOT-BC55575  Ambrosia psilostachya Elizabeth McClintock; Paul Reeberg 1988-10-11 s.n. San Mateo San Bruno Mountains, north of Kennedy School 198 Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  CAS-BOT-BC136830  Amelanchier utahensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  JROH1341  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH1343  Amsinckia intermedia John Hunter Thomas 1983-4-5 21321 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  RSA0089684  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  UC24619  Amsinckia lycopsoides Alice Eastwood April, 1896 San Mateo near San Mateo Comment
  JROH1354  Amsinckia menziesii John Hunter Thomas 1987-5-15 24281 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC344839  Anaphalis margaritacea Peter Rubtzoff 1978-9-16 9270 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC45193  Anaphalis margaritacea Josephine D. Randall 1907-7-28 45 San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC45194  Anaphalis margaritacea Saichi Kawahara 1968-7-29 459 San Mateo Old Stage Road, south bank of Pomponio Creek 36 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
  CAS-BOT-BC391912  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  POM151094  Anemone grayi C. F. Baker 1902-3-18 323 San Mateo King's Mountain. Comment
  CAS-BOT-BC221452  Angelica hendersonii Lewis S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 60 Comment
  CHSC23309  Angelica hendersonii Robert F. Thorne; P. Everett 1965-8-1 35077 San Mateo 21.5 mi. S of Golden Gate Bridge; on W-facing sea bluff. 68 Comment
  RSA492532  Angelica hendersonii Lyman Benson 1937-6-27 8397 San Mateo Moss Beach Comment
  UC648294  Angelica hendersonii Alice Eastwood, John Thomas Howell 1939-7-9 7441 San Mateo e of La Honda (Skyline Boulevard); Skyline Boulevard Comment
  JROH188  Angelica tomentosa John Hunter Thomas 1985-5-22 23676 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC140427  Angelica tomentosa var. tomentosa E. L. Greene 1903-6-30 3354 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  CAS-BOT-BC273176  Anisocarpus madioides L. S. Rose 1941-7-2 41287 San Mateo Kings Mountain 540 Comment
  CAS-BOT-BC273171  Anisocarpus madioides Lawrence Beane 1949-6-2 466 San Mateo Between La Honda and coast 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
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101037  Anthemis cotula G. Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek, San Francisco Watershed Reserve. Comment
  UC1125531  Anthemis cotula N. K. Carlson 1935-7-5 40 San Mateo 3 mi s Bellvale; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC280643  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  JROH193  Anthriscus caucalis John H. Thomas 1966-4-22 11571 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454481  Aphanes occidentalis John H. Thomas 1955-4-6 4847 San Mateo East facing slope of San Bruno Mountain just North of South San Francisco. 91 Comment
  CAS-BOT-BC454491  Aphanes occidentalis Ned Cahill 1975-1-8 387 San Mateo Northside of serpentine outcropping in field bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC451567  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  SD71033  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo In a small pool near the road, Skyline Boulevard near the junction of Chinese Cemetery Road. (IPB 4/07) Comment
  UC311123  Aquilegia eximia A. D. E. Elmer 1903-1 4952 San Mateo Crystal Springs Lake 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
  UC463319  Aquilegia eximia W. R. Dudley 1902-9-21 San Mateo sw Crystal Springs Lake; Santa Cruz Peninsula Comment
  UCR122980  Aquilegia formosa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6772 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UCSC007720  Aquilegia formosa Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JEPS83068  Arabis blepharophylla Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 435 San Mateo 3.2 km nw Pilarcitos Dam (and 2.4 km wsw of San Andres Dam, along crest of Fifield Ridge, w of gravel rd, San Francisco Watershed Reserve); Fifield Ridge, San Francisco Watershed Reserve 388 Comment
  CAS-BOT-BC128675  Arbutus menziesii W. R. Dudley 1904-4-10 s.n. San Mateo Alpine Road, Corte Madera Creek - Santa Cruz Mountain Peninsula Comment
  JROH1921  Arbutus menziesii J. H. Thomas 1977-4-29 18578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB11754  Arbutus menziesii Olson, Jim 1962-4-17 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  CDA22357  Arceuthobium campylopodum E. L. Labadie 1959-10-16 San Mateo Nursery, Burlingame. 0 Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park 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
  CAS-BOT-BC24199  Arctostaphylos andersonii W. R. Dudley 1897-12-29 s.n. San Mateo On Butano, Pescadero Ridge. Comment
  SEINET11988250  Arctostaphylos andersonii Unknown 1959-1 323 San Mateo 1.2 mi from junction of CA 5 on Kings Mt. Road Comment
  SEINET11989210  Arctostaphylos andersonii E. McClintock, Knight, W.; Knight, I. 1982-1 4632 San Mateo San Pedro County Park, near Pacifica Comment
  CAS-BOT-BC23547  Arctostaphylos crustacea W. R. Dudley 1899-5-14 s.n. San Mateo Hills by road from San Andreas Lake to Pilarcitos Comment
  LA26778  Arctostaphylos crustacea Lewis S. Rose; 1942-3-30 42007 San Mateo Kings Mountain 600.0 Comment
  SEINET11977765  Arctostaphylos crustacea J. I. McMurphy 1906-1 7 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula 488 Comment
  JROH1923  Arctostaphylos crustacea subsp. crustacea L. R. Abrams 1910-8-14 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SEINET11988208  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4418 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 76 Comment
  CAS-BOT-BC24728  Arctostaphylos glandulosa subsp. glandulosa Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon, San Bruno Mtn. Comment
  CAS-BOT-BC24729  Arctostaphylos glandulosa subsp. glandulosa John Kipping 1972-3-5 s.n. San Mateo Steep slope in upper Buckeye Canyon. Comment
  CAS-BOT-BC24483  Arctostaphylos imbricata Arthur L. Menzies 1963-3-9 s.n. San Mateo On ridge below se. end of parking lot. San Bruno Hills. Comment
  CAS-BOT-BC24484  Arctostaphylos imbricata Arthur L. Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC24490  Arctostaphylos imbricata William Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Power Line Ridge, San bruno Mtn. 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-BC27193  Arctostaphylos imbricata Marion L. Campbell 1915-2-15 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC27194  Arctostaphylos imbricata Mrs. Ernest Meiere 1915-6-18 s.n. San Mateo San Bruno hills Comment
  RSA128344  Arctostaphylos imbricata P. H. Raven 1951-2-18 2733 San Mateo summit ridge of the San Bruno Mountains, topotype, endemic Comment
  UCR58357  Arctostaphylos imbricata Walter Knight, I. Knight 1980-6-14 3747 San Mateo Original from San Bruno Mt. (grown at Tilden Botanic Garden, Berkeley) Comment
  CAS-BOT-BC45601  Arctostaphylos montaraensis Walter Knight; Roger Raiche 1982-1-23 4415 San Mateo Montara Mt. 304 Comment
  UC21802  Arctostaphylos montaraensis J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD51754  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo On east-facing slopes of Montara Mountain. Comment
  SEINET11989109  Arctostaphylos montaraensis Unknown 1966-1 740 B San Mateo Montara Mountain Comment
  CAS-BOT-BC39820  Arctostaphylos pacifica Arthur Menzies 1962-2-18 s.n. San Mateo San Bruno Mountain Comment
  RSA633499  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27573 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  JEPS78656  Arctostaphylos regismontana Edward Lee 1936-1-26 1735 San Mateo King's Mountain Rd 4.7 mi from Woodside (e side of ridge); Cahill Ridge Comment
  POM212013  Arctostaphylos regismontana C. B. Wolf 1930-11-6 1811 or 1067 San Mateo 2 mi N of Summit of Kings Mountain, Skyline Blvd. 640 Comment
  POM87727  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain. Comment
  RSA636739  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24640 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636748  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24634 San Mateo NW side of Montara Mtn. 150 Comment
  UC311533  Arctostaphylos regismontana A. D. E. Elmer March 1903 4537 San Mateo King's Mountain Comment
  CAS-BOT-BC44710  Arctostaphylos regismontana Walter Knight; Irja Knight; Jacob Sigg; Elizabeth McClintock 1981-2-25 4170 San Mateo From Strybing Arboretum, Golden Gate Park, San Francisco, #63-1 vea Univ. of Calif. botanic garden, Comment
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  UC702542  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain Kings Mountain (type locality) 600 Comment
  UC82933  Arctostaphylos tomentosa subsp. crustacea Katharine Brandegee April 1889 San Mateo Redwood City Comment
  POM285159  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1928-12-15 834 San Mateo La Honda 457 Comment
  SEINET11988249  Arctostaphylos tomentosa var. tomentosiformis Unknown 1959-1 325 San Mateo 1.2 mi from junction CA 5 on King's Mt. Road Comment
  RSA128346  Arctostaphylos uva-ursi P. H. Raven 1951-2-18 2732 San Mateo Summit ridge of the San Bruno Mountains. A new southern limit! Comment
  UCR58390  Arctostaphylos uva-ursi Walter Knight, I. Knight 1980-6-14 3748 San Mateo Original from San Bruno Mt. (grown at Tilden Botanic Garden, Berkeley) Comment
  SEINET11987303  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4201 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  JEPS91222  Arctostaphylos uva-ursi var. suborbiculata Dean W. Taylor 1988-4-29 9585 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  CAS-BOT-BC400410  Aristolochia californica Elizabeth McClintock 1969-3-9 s.n. San Mateo San Bruno Mountain. Edge of southern ravine of Glen Park Canyon, next to fence dividing Crocker property from City of Brisbane. Eastern portion of mountain 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
  HSC23890  Arnica discoidea Mary Katherine Wicksten 1971-6-16 32 San Mateo Bank at Huddart Park, by Werder Flat Comment
  RSA177002  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of palo Alto. E end of Searsville Dam Comment
  CAS-BOT-BC93930  Artemisia douglasiana Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain, Brisbane Lagoon Comment
  OBI17042  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd & Half Moon Bay rd, Cahill ridge 244 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-BC93642  Artemisia pycnocephala Ira L. Wiggins 1929-7-4 3800 San Mateo Sea bluffs at Pescadero Beach Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  RSA176418  Asclepias fascicularis John H. Thomas 1964-7-9 10444 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  POM56936  Aster radulinus C. F. Baker 1902-9-15 1546 San Mateo Black Mt. Comment
  POM87776  Aster radulinus L. R. Abrams 1902-9-28 3004 San Mateo New Grade Road- Portola Comment
  CAS-BOT-BC478065  Asteraceae H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula, Woodside Comment
  CAS-BOT-BC186762  Astragalus gambelianus John H. Thomas 1971-5-2 15822 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1997  Astragalus gambelianus John Hunter Thomas 1992-4-29 25170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186752  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  RSA90716  Astragalus nuttallii F. W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach Comment
  CAS-BOT-BC177966  Astragalus nuttallii var. virgatus V. F. Hesse 1954-7-30 1342 San Mateo Near Pebble Beach 15 Comment
  SD27752  Astragalus nuttallii var. virgatus Carl B. Wolf 1927-6-29 562 San Mateo Along the coast south of Pescadero at Pebble Beach. Comment
  RSA681761  Astragalus oxyphysus Annuschka Deb 1989-4-19 117 A San Mateo YBN Berm near parking lot Comment
  CAS-BOT-BC193090  Astragalus pycnostachyus var. pycnostachyus C. F. B. 1902-10-1 1744 San Mateo Pillar Point Comment
  SJSU15403  Astragalus pycnostachyus var. pycnostachyus Toni Corelli 2011-8-31 711 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Butano Trail, between Butano Creek and Pescadero Creek Road 4 Comment
  UCD164088  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  JROH1805  Atriplex prostrata Roxana S. Ferris 1924-10-6 4095 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  CAS-BOT-BC146077  Avena barbata J. H. Thomas 1954-4-3 3836 San Mateo Pilarcitos Creek Road, 3.5 miles northeast of Halfmoon Bay. 121 Comment
  CAS-BOT-BC146080  Avena barbata Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo San Bruno Mountains. In Glen Park Canyon. Above Brisbane. 91 Comment
  JROH4841  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  SJSU16016  Avena barbata John Rawlings, Ken Hickman 2016-5-26 1812 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CDA1749  Avena fatua T. C. Fuller 1971-6-1 19880 San Mateo 1 mile east of San Gregorio. 0 Comment
  JROH4843  Avena fatua John H. Thomas 1973-4-14 16559 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10528168  Avena occidentalis Unknown Anonymous s.n. San Mateo Dry hill, Millbrae Meadows. Comment
  UCD56092  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
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Oct 29 2021
  JROH5  Azolla filiculoides S. F. Blake 1927-6-24 9944 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC68329  Azolla filiculoides Roxana S. Ferris 1920-10-1 2102 San Mateo Santa Cruz Mountain Peninsula - Mud Lakes, Coalmine Ridge Comment
  HSC5124  Baccharis douglasii L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. and La Honda Rd. 610 Comment
  POM216547  Baccharis douglasii D. D. Keck 1931-9-27 1271 San Mateo Dumbarton bridge Comment
  JROH534  Baccharis glutinosa John H. Thomas 1970-7-5 15669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC893646  Baccharis glutinosa Lewis S. Rose 1941-10-31 41172 San Mateo Searsville Lake 91 Comment
  CAS-BOT-BC99530  Baccharis pilularis P. C. Everett 1934-11-7 6246 San Mateo Pescadero 198 Comment
  POM350441  Baccharis pilularis D. D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach 91 Comment
  UCR240609  Baccharis pilularis T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3527 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
  SEINET5556641  Baeria californica H. S. Gentry 1931-1 95 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET5625923 Image available Baeria chrysostoma Unknown 1907-1 8465 San Mateo San Bruno Hills Comment
  JROH1451  Barbarea orthoceras John Hunter Thomas 1987-4-7 24175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near new bridge over San Francisquito Creek Comment
  JROH3916  Bellardia trixago John H. Thomas 1975-6-5 17930 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lowflow crossing Comment
  JROH3927  Bellardia trixago John Hunter Thomas 1988-4-28 24419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101678  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UCR122983  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 2001-6-2 6777 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  SJSU783  Bellardia trixago M. Bogner 1943-4-24 San Mateo near Menlo Park Comment
  JEPS121478  Berberis pinnata subsp. pinnata Adam C. Schneider with C. Matt Guilliams 2013-3-9 38 San Mateo Crystal Springs Reservoir Comment
  CDA3007  Beta vulgaris E. L. Labadie 1961-10-24 San Mateo Railroad tracks at Chestnut Street, Redwood City. 0 Comment
  POM55208  Blennosperma nanum var. robustum A. D. E. Elmer 1903-04 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC95344  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC95343  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 1107 San Mateo Trillium Gulch, San Bruno Mountain Comment
  CAS-BOT-BC145406  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 mile east of Pescadero on road to La Honda. Comment
  JROH4854  Brachypodium distachyon W. Lennihan 1980-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; eastern draw trail to San Francisquito Creek, about 1/3rd way down Comment
  CDA36480  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd. Comment
  CDA36482  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; Martinez Rd., north edge of corral. Comment
  JROH5658  Brachypodium sylvaticum John Rawlings 2014-7-23 1267 San Mateo Jasper Ridge Biological Preserve, Stanford University; along downhill verge of Rd G between Rd C and the first small drainage crossing Rd G 108 Comment
  POM272569  Brassica nigra Lyman Benson 1939-6-24 9676 San Mateo Menlo Park. 30 Comment
  UC2049865  Brassica nigra H. W. Johansen 1955-4-10 48 San Mateo Pescadero Creek Road, about 4 miles E of Pescadero Comment
  JROH4874  Briza maxima John Hunter Thomas 1989-5-5 24657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD57161  Briza maxima S. S. Tillett; I. Sternback 1956-6-25 551 San Mateo Skyline Drive. 487 Comment
  CAS-BOT-BC145331  Briza minor John H. Thomas 1961-5-13 9344 San Mateo At Franklin Point. Comment
  CAS-BOT-BC145336  Briza minor David D. Keck 1932-4-18 1433 San Mateo Burlingame. On the shore of San Francisco Bay. 2 Comment
  JROH4887  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  UC144492  Briza minor Copeland 1903-5-24 3257 San Mateo above Crystal Springs Lake Comment
  UCR143328  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos 30 Comment
  CAS-BOT-BC482183  Brodiaea appendiculata Rimo Bacigalupi 1922-5-31 s.n. San Mateo Cedro field near Stanford University Comment
  SEINET3884835  Brodiaea coronaria var. macropoda Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain W. of San Mateo.; 0 122 Comment
  CAS-BOT-BC484347  Brodiaea elegans subsp. elegans Margaret A. Barry 1960-6-8 162 San Mateo slopes on Coal Mine Ridge Comment
  SBBG39527  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo 121 Comment
  UC75263  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC483185  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Ridge, south of power lines, San Bruno Mountain 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
  CHSC89336  Bromus arenarius R. Garcia 2004-5-4 1299033 San Mateo San Francisco Bay area. 2091 Portola Rd, Woodside. Comment
  SEINET3128654  Bromus carinatus L. R. Abrams 1902-5-11 2462 San Mateo Carplot Springs Comment
  UCD58154  Bromus carinatus Janet Jacob 1951-4-1 64 San Mateo 7 miles east of Pescadero. Comment
  CAS-BOT-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  CAS-BOT-BC148996  Bromus carinatus var. carinatus W. R. Dudley 1894-7-30 s.n. San Mateo Santa Cruz Mountain Peninsula. Near La Honda. Comment
  CAS-BOT-BC149013  Bromus carinatus var. carinatus Walter Knight; Irja Knight 1964-3-15 s.n. San Mateo San Bruno Mountain. Colma Canyon. South ridge. Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CAS-BOT-BC148768  Bromus carinatus var. marginatus Catherine A. Toschi 1963-2-23 63 :29 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  SEINET3892511  Bromus diandrus R. L. Johnson 2012-4-6 12 -003 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  CAS-BOT-BC155138  Bromus hordeaceus Ned Cahill 1974-4-29 190 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC227626  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4939  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  RSA181249  Bromus laevipes John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH5700  Bromus madritensis subsp. madritensis John Rawlings 2015-4-7 1458 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F in serpentine prairie west of Escobar Gate 166 Comment
  JROH5718  Bromus madritensis subsp. madritensis John Rawlings 2015-4-26 1649 San Mateo Jasper Ridge Biological Preserve, Stanford University; near cistern at west side of Field Station. 1120 Comment
  POM204676  Bromus marginatus H. F. Copeland 1903-6-10 1630 San Mateo Montara Point. Comment
  RSA107096  Bromus marginatus L. S. Rose 1956-7-2 56115 San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  CDA34495  Bromus pseudolaevipes D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174B San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
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Nov 26 2021
  SEINET9757293 Image available Bromus rigidus Robert A. Norris 1975-3-31 San Mateo near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC161748  Bromus rubens Fred Hemphill 1973-4-15 679 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC185394  Bromus vulgaris W. R. Dudley 1896-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. La Honda. Comment
  UC676750  Cakile edentula Reed C. Rollins 1941-7-19 2961 San Mateo along beach at Half Moon Bay Half Moon Bay Comment
  CAS-BOT-BC36870  Cakile edentula var. edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  CAS-BOT-BC36956  Cakile maritima var. maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC36958  Cakile maritima var. maritima Robert T. Orr 1961-6-27 s.n. San Mateo Ano Nuevo Island. Comment
  CAS-BOT-BC185140  Calamagrostis nutkaensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain. Slope below parking lot. Comment
  CAS-BOT-BC185143  Calamagrostis nutkaensis L. R. Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  JROH5602  Calamagrostis rubescens John Rawlings 2014-3-18 1208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near jct of and between trails 5 and 2. 83 Comment
  JEPS127783  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-3-9 54 San Mateo Comment
  CAS-BOT-BC438539  Calandrinia ciliata John H. Thomas 1974-4-11 17128 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC85765  Calocedrus decurrens George Oberlander 1949-9-25 397 San Mateo San Francisco Watershed Reserve - Valley between Fiefield and Sawyer Ridges Comment
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Aug 28 2018
  CAS-BOT-BC492205  Calochortus albus Le Roy Abrams 1901-5-1 1571 San Mateo Woodside Comment
  CAS-BOT-BC492219  Calochortus albus Daniel Cohen 1953-6-3 105 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC492223  Calochortus albus Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  HSC23997  Calochortus albus Mary Katherine Wicksten 1971-6-16 45 San Mateo Huddart Park, woods near Oak Flat 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
  CAS-BOT-BC491978  Calochortus luteus Ned Cahill 1974-5-18 279 San Mateo Serpentine fields bordered by chaparral near the intersection of Canda and Edgewood roads, about 3 mi westward from Redwood City. Comment
  POM258692  Calochortus luteus Marion Ownbey, Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa Cruz Mountains, above Searsville Lake Comment
  POM291026  Calochortus luteus Lyman Benson 1930-5-3 2117 -A San Mateo Hills by Stanford University; Santa Cruz mountain range, Corte Madera Creek watershed 152 Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 Comment
  CAS-BOT-BC496828  Calochortus tolmiei W. R. Dudley 1907-4-27 s.n. San Mateo Kings Mt., Santa Cruz Mountain Peninsula Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  CAS-BOT-BC494044  Calochortus venustus A. D. E. Elmer 1903-7-1 4763 San Mateo Portola Comment
  JROH558  Calycadenia multiglandulosa John H. Thomas 1958-11-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM129524  Calystegia purpurata A. D. E. Elmer 1903-06 4299 San Mateo Pescadero Creek Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 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
  RSA60634  Calystegia soldanella I. L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  JEPS112711  Calystegia subacaulis Dean W. Taylor 1994-5-10 14267 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
  CAS-BOT-BC436440  Calystegia subacaulis George Oberlander 1950-4-16 739 San Mateo San Francisco Watershed Reserve, south boundary Comment
  RSA21998  Camissonia micrantha J. T. Howell 1938-5-1 13773 San Mateo Colma Canyon. Comment
  POM49683  Camissonia ovata L. R. Abrams 1902-4-6 2316 San Mateo Portola 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
  RSA449044  Camissonia ovata Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  POM204507  Campanula prenanthoides I. L. Wiggins 1929-7-4 3779 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 Comment
  CAS-BOT-BC37662  Cardamine californica W. R. Dudley 1903-5-9 s.n. San Mateo Santa Cruz Peninsula. Iverson's near Peters Creek. Comment
  CAS-BOT-BC37668  Cardamine californica Reed Clark Rollins 1941-3-30 2954 San Mateo 4 miles northwest of Woodside. Comment
  CAS-BOT-BC37682  Cardamine californica C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  CAS-BOT-BC37689  Cardamine californica Javier Penalosa 1963-3-9 2698 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC37665  Cardamine californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains. Above Fern Rock. Comment
  CAS-BOT-BC37669  Cardamine californica Reed Clark Rollins 1941-3-16 2943 San Mateo Santa Cruz Mountains. East slope of Kings Mountain, 6 miles west of Woodside. Comment
  CAS-BOT-BC37688  Cardamine californica P. H. Arnaud Jr. 1967-5-6 s.n. San Mateo Redwood Roadside Park on La Honda Road. Comment
  POM204309  Cardamine californica var. integrifolia I. L. Wiggins 1931-2-21 5089 -a San Mateo Pescadero Beach, 0.5 mile N of Pebble Beach hotel. Comment
  UC483498  Cardamine californica var. integrifolia Ira L. Wiggins 1931-2-21 5089 a San Mateo 1/2 mi n Pebble Beach Hotel (Pescadero Beach); , n of Pebble Beach Hotel Comment
  JROH5678  Cardamine hirsuta John Rawlings 2015-3-3 1313 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 8 125 Comment
  CAS-BOT-BC37984  Cardamine oligosperma John H. Thomas 1956-4-7 5612 B San Mateo Jasper Ridge, about 3.5 miles southwest of Stanford University. 182 Comment
  JROH1488  Cardamine oligosperma Le Roy Abrams 1902-4-5 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1500  Cardamine oligosperma John Hunter Thomas 1985-4-10 23515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill gate Comment
  POM272675  Cardamine oligosperma Lyman Benson 1929-3-2 990 San Mateo Hill east of Lake Searsville. Comment
  CAS-BOT-BC37983  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-28 1018 San Mateo San Bruno Mountain. Trillium Gulch. Comment
  JROH1502  Cardamine oligosperma John Hunter Thomas 1989-4-20 24641 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101040  Cardamine oligosperma G. Oberlander 1949-4-30 123 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  CAS-BOT-BC384842  Cardionema ramosissimum Walter Knight; Irja Knight 1965-4-20 1082 San Mateo San Bruno Mountain. Pig Ranch Ravine 45 Comment
  CDA6895  Carduus tenuiflorus T. C. Fuller 1960-4-2 4078 San Mateo West of Skyline Boulevard, 1.6 miles south of Half Moon Bay Road. 0 Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  UCSC006296  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  NY25686  Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  JROH4319  Carex barbarae John Hunter Thomas 1989-6-6 24759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19323  Carex barbarae Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5247 San Mateo Lobitos. Comment
  CAS-BOT-BC19324  Carex barbarae George Oberlander 1950-4-18 513 San Mateo San Francisco Watershed Reserve. Marsh, south boundary. Comment
  JEPS109523  Carex brevicaulis Dean W. Taylor 1992-3-19 12338 b San Mateo Bean Hollow, on coastal bluff ca. 400 m n along the coast from the parking area on the beach side of Highway 1 alingment Comment
  SJSU2296  Carex brevicaulis C. W. Sharsmith 1950-4-16 6625 San Mateo coastal bluff, Pescadero Point near Pescadero Comment
  SBBG39550  Carex brevicaulis J. T. Howell 1965-3-29 41035 San Mateo W end of summit ridge of San Bruno Mtn 396 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
  POM193987  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  POM79201  Carex densa A. D. E. Elmer 1903-06 4428 San Mateo Crystal Springs Lake. Comment
  UC30023  Carex densa J. Burtt Davy 1893-6-17 787 San Mateo Belmont Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  UCD165066  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  CAS-BOT-BC21818  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6070 San Mateo Pigeon Point. 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
  CAS-BOT-BC119446  Carex nudata W. R. Dudley 1903-6-6 s.n. San Mateo Below Iversons near margin of Peter;s Creek at mouth. Comment
  CAS-BOT-BC176400  Carex obnupta Peter Rubtzoff 1976-6-30 8711 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  JEPS23935  Carex serratodens Le Roy Abrams 1902-5-4 8019 San Mateo Woodside Comment
  POM193944  Carex serratodens Le Roy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117640  Carex serratodens Joseph Whipple Congdon 1901-7-28 s.n. San Mateo Spring Valley. Comment
  SEINET13715399  Carex subbracteata D. W. Taylor 2008-4-16 20180 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  UCR280167  Carex subbracteata Peter Rubtzoff 1978-5-18 9172 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, westernmost part of the area 220 Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC116814  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  CAS-BOT-BC115514  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Between Woodside and Crystal Springs. Comment
  CAS-BOT-BC227609  Carex tumulicola Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater area 30 Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  SD40038  Carpobrotus chilensis Edith A. Purer 1933-7-27 5393 San Mateo Pigeon Point, two miles south Comment
  POM87996  Castilleja affinis L. R. Abrams 1902-5-20 2475 San Mateo Kings Mountain Comment
  POM88003  Castilleja affinis L. R. Abrams 1902-5-11 2437 San Mateo Crystal Springs Lake. Comment
  POM15998  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  SD38150  Castilleja affinis Delzie Demaree 1932-4-9 8976 San Mateo Woods, Gov. Ralph Estate Comment
  SEINET12288585  Castilleja affinis Cummings, McCallum 1933-1 s.n. San Mateo in Spring Valley Comment
  JEPS25440  Castilleja affinis subsp. affinis John Weiler 1961-3-22 6134 San Mateo 0.2 mi s Devil's Slide (about 2.5 mi n of community of Montara, n end of Montara Mtn); Montara Mtn. Comment
  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
  JROH3938  Castilleja affinis subsp. affinis John H. Thomas 1955-5-6 5013 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UC138696  Castilleja affinis subsp. affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake 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
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  UCSC006159  Castilleja ambigua Randall Morgan 1999-7-12 3588 San Mateo ca. 1+ mile north of Bean Hollow State Beach Comment
  POM194753  Castilleja ambigua subsp. ambigua D. D. Keck 1927-6-10 394 San Mateo Radio Station, Montara Point. 0 Comment
  JROH3956  Castilleja attenuata John H. Thomas 1973-4-14 16562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD234177  Castilleja densiflora Claude Bonang 1958-4-4 13 San Mateo Jasper Ridge. Meadow. Comment
  JROH3976  Castilleja densiflora subsp. densiflora Duncan M. Porter 1961-4-8 749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate on top of ridge Comment
  SBBG54571  Castilleja densiflora subsp. densiflora F. W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo 4 mi W of Burlingame 152 Comment
  JROH5758  Castilleja densiflora subsp. densiflora M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  UC27286  Castilleja densiflora subsp. densiflora Ivar Tidestrom May 1894 San Mateo Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  SJSU11539  Castilleja exserta subsp. exserta S. H. Casey 1969-5-18 253 San Mateo San Bruno Mt Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  RSA428380B  Castilleja franciscana J. Doty 1969-3-26 595 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  SEINET10744868 Image available Castilleja franciscana Francis W. Pennell 1940-5-15 Pennell 25420 San Mateo Dark adobe clay (roadbank). E. of upper Crystal Springs Lake, s.w. of San Mateo. 61 Comment
  JROH3991  Castilleja rubicundula subsp. lithospermoides Robert Robertson 1954-4-23 101 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3993  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1958-5-10 7147 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of ridge Comment
  JROH4009  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1989-5-11 24729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37771  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-25 3652 San Mateo Spring Valley Lakes 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
  JEPS103891  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  CAS-BOT-BC32579  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS18908  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5446 San Mateo 1.1 mi n Montara, n limits of town (along Calif Hwy 1, a w end of Montara Mountain); Montara Mountain Comment
  JEPS19717  Castilleja wightii Peter H. Raven 1957-6-24 10966 San Mateo just s Linda Mar Comment
  JEPS78275  Castilleja wightii L. R. Heckard with T. I. Chuang and Mike Morris 1979-6-21 5116 San Mateo s end Adobe Avenue, San Pedro Valley (below Eucalyptus grove); San Pedro Valley 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
  RSA219032  Castilleja wightii Walter Knight, I. Knight 1967-1-18 s.n. San Mateo Top of Quarry 4. San Bruno Mountain. Comment
  CAS-BOT-BC39381  Caulanthus lasiophyllus Reed Clark Rollins 1942-4-30 3005 San Mateo Southeast slope of the San Bruno Hills, about 1 mile west of Brisbane. Comment
  CAS-BOT-BC40391  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  JEPS127814  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-4-7 78 San Mateo Comment
  CAS-BOT-BC47946  Ceanothus arboreus George Oberlander 1950-4-2 588 San Mateo San Andreas Dam Comment
  JROH3525  Ceanothus cuneatus var. cuneatus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33462  Ceanothus cuneatus var. dubius A. D. E. Elmer -Mar-1903 San Mateo Portola Comment
  SBBG116527  Ceanothus integerrimus D. H. Wilken with E. Painter 2003-5-10 16067 San Mateo Skyline Blvd (St Hwy 35), near head of La Honda Crk, 0.8 linear km NE of Allen Lookout, Santa Cruz Mtns 610 Comment
  CAS-BOT-BC51597  Ceanothus oliganthus var. sorediatus Helen M. Edwards 1917-4-1 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC51603  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. between San Francisco and Santa Cruz Comment
  CAS-BOT-BC51604  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. bet. San Francisco and Santa Cruz Comment
  JROH3530  Ceanothus oliganthus var. sorediatus John H. Thomas 1973-3-12 16492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3532  Ceanothus oliganthus var. sorediatus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223329  Ceanothus papillosus L. S. Rose 1935-5-3 35144 San Mateo Skyline Blvd, W of Saratoga. 732 Comment
  CAS-BOT-BC52301  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  JROH592  Centaurea calcitrapa John Hunter Thomas 1977-6-16 18767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM351492  Centaurea calcitrapa Edith A. Purer 1933-8-13 18173 San Mateo Near Belmont Comment
  RSA220002  Centaurea calcitrapa R. E. Frenkel 1963-12-7 319 San Mateo San Francisco Water District, Whiting Ridge Road, about 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  UCD130018  Centaurea cyanus Jane A. Reese 1966-6-11 125 San Mateo northwest slope, Whiskey hill road, 1 mile from Junction with Woodside Road. 152 Comment
  JROH601  Centaurea melitensis John H. Thomas 1973-6-15 16849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM54379  Centaurea melitensis A. D. E. Elmer 1903-06 4281 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC277127  Centaurea melitensis John H. Thomas 1963-5-20 10107 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA101008  Centaurea melitensis G. Oberlander 1950-5-6 895 San Mateo Near San Anreas Lake, San Francisco Watershed Reserv Comment
  JROH605  Centaurea solstitialis John Hunter Thomas 1977-6-16 18765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH607  Centaurea solstitialis John Hunter Thomas 1982-6-7 21027 San Mateo Jasper Ridge Biological Preserve, Stanford University; old sandy beach Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  UC763213  Centaurium davyi R. F. Hoover 1941-5-20 5112 San Mateo near Martin Creek (grade above Portola on La Honda road) Comment
  CAS-BOT-BC272817  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  SEINET3146197  Centromadia pungens L. S. Rose 1938-8-18 38231 San Mateo San Mateo 6 Comment
  SEINET3385989 Image available Centromadia pungens Lewis S. Rose 1938-8-18 38231 San Mateo Open fields. 6 Comment
  CAS-BOT-BC279327  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo Santa Cruz Mountain Peninsula. Fields near Salt Marshes, Palo Alto Comment
  SJSU5744  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  CAS-BOT-BC388385  Cerastium glomeratum John H. Thomas 1964-4-30 10355 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1690  Cerastium glomeratum John H. Thomas 1963-4-17 10036 C San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC388395  Cerastium glomeratum Walter Knight; Irja Knight 1965-3-21 948 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  CAS-BOT-BC135470  Cercocarpus betuloides var. betuloides W. R. Dudley 1902-11-2 s.n. San Mateo Bank os San Francisquito Cr. half mile above Adelanta Vill bridge. Comment
  JROH3613  Cercocarpus betuloides var. betuloides W. R. Dudley 1893-12-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11248322 Image available Cercocarpus montanus M. E. Springer 1946-9-1 725 San Mateo Near Searsville Lake Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1950  Chamaesyce serpillifolia subsp. serpillifolia James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1817  Chenopodium berlandieri var. sinuatum John Rawlings 2011-8-2 1100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  JROH1819  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM164765  Chenopodium murale C. F. Baker 1902-9-2 1549 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC497724  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 806 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC497728  Chlorogalum pomeridianum Hester R. Davis 1920-6-2 199 San Mateo Serpentine Creek and Redwood City Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  SEINET3828530 Image available Chorizanthe cuspidata var. marginata A. D. E. Elmer 1903-1 4828 San Mateo San Pedro. Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
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Oct 1 2021
  SEINET4183191  Chorizanthe robusta K. Brandegee 1905-1 San Mateo Comment
  RSA476617  Chrysolepis chrysophylla E. A. Purer 1932-7-18 4001 San Mateo King's Mountain. Comment
  UC565402  Chrysolepis chrysophylla var. minor Charles M. Belshaw 1935-1-25 1468 San Mateo 2.5 mi nw Sierra Moreno Peak; South Coast Range Comment
  JROH2586  Cicendia quadrangularis John H. Thomas 1973-4-20 16579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  CAS-BOT-BC100936  Cirsium fontinale var. fontinale John Thomas Howell 1932-10-19 10852 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  UCD130570  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo east shore of Upper Crystal Springs Lake, 0.7 mile south of road across lake. Comment
  JROH630  Cirsium occidentale var. occidentale John Hunter Thomas 1979-6-12 19590 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam near "old" low-flow crossing Comment
  CAS-BOT-BC280509  Cirsium quercetorum John H. Thomas 1961-5-14 9378 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CAS-BOT-BC280521  Cirsium quercetorum Alice Eastwood; John Thomas Howell 1938-6-26 6078 San Mateo Crystal Springs Lake Comment
  JEPS80473  Cirsium quercetorum L. R. Heckard 1981-5-25 5663 San Mateo on e side of the s end Lower Crystal Springs Reservoir (nw of junction (freeway interchange) of highway state <sic> 92 and U. S. 280) Comment
  RSA0070861  Cirsium quercetorum John H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC285864  Cirsium vulgare John H. Thomas 1963-7-19 10198 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC285868  Cirsium vulgare Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  RSA791714  Clarkia Robert F. Thorne, P. Everett 1965-8-1 35076 San Mateo 21.5 miles S of Golden Gate Bridge. 69 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
  RSA41290  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City hills Comment
  CAS-BOT-BC163966  Clarkia purpurea subsp. quadrivulnera Ned Cahill 1974-4-30 220 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Area partly destroyed by road building. Comment
  JROH3010  Clarkia purpurea subsp. viminea D. E. Breedlove 1971-5-31 19347 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  CAS-BOT-BC165148  Clarkia rubicunda Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC165167  Clarkia rubicunda Margaret A. Barry 1937-6-22 159 San Mateo Exposed slopes on Coal Mine Ridge Comment
  CAS-BOT-BC165170  Clarkia rubicunda L. R. Abrams 1907-8-26 s.n. San Mateo Kings Mountain Comment
  JROH3012  Clarkia rubicunda John H. Thomas 1962-5-31 9891 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end Comment
  JROH3021  Clarkia rubicunda John H. Thomas 1975-7-31 17983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3023  Clarkia rubicunda John Hunter Thomas 1977-6-7 18730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18380  Clarkia rubicunda Carl B. Wolf 1927-7-1 528 San Mateo Above Emerald Lake, back of Redwood City. Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279907  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 mi s San Gregorio (on old coast highway) Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  CAS-BOT-BC165127  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165138  Clarkia rubicunda Milo S. Baker Aug. 252 a-'25 San Mateo Pescadero Comment
  SD88531  Clarkia rubicunda Darley F. Howe 1972-6-25 San Mateo Ocean bluff, 7.5 miles North of Half Moon Bay Comment
  SEINET12189237  Clarkia rubicunda Unknown 1932-1 9247 San Mateo near Pescadero Comment
  UC1561235  Clarkia rubicunda Barbara Ertter 1989-6-4 8556 a San Mateo near jct. Crocker Ave. and Alexander Ave. (n side of hill that is n-most extension of San Bruno Mt. on n side of Guadalupe Canyon); Daly City Comment
  UC306526  Clarkia unguiculata A. D. E. Elmer June, 1903 4293 San Mateo Alpine School House Comment
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Oct 6 2011
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  JROH3336  Claytonia exigua subsp. exigua John Hunter Thomas 1992-4-9 25133 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC439594  Claytonia parviflora subsp. parviflora Fred Hemphill 1973-4-8 656 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439987  Claytonia perfoliata subsp. mexicana Fred Hemphill 1973-4-22 698 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3347  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  JROH3349  Claytonia perfoliata subsp. perfoliata John H. Thomas 1977-4-8 18525 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3405  Clematis lasiantha John H. Thomas 1958-5-10 7160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at west end of ridge 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
  JEPS6369  Collinsia heterophylla Rimo Bacigalupi and G. T. Robbins 1954-6-18 4551 San Mateo 1/4 mi w, along Alpine Rd Skyline Blvd 701 Comment
  JROH4015  Collinsia heterophylla var. heterophylla John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC240924  Collinsia multicolor A. A. Heller 1907-5-28 8580 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  CAS-BOT-BC240937  Collinsia multicolor Miss E. Cannon 1891-1-1 s.n. San Mateo S.S.F. Comment
  CHSC56998  Collinsia multicolor Josephine Boyd 1988-5-11 San Mateo Along the old stagecoach roal parallel to Crystal Springs Road ca 250 ft sw of its jct. with Polhemus Road in San Mateo. 83 Comment
  UC26675  Collinsia multicolor J. Burtt Davy Jun 21 1893-Jun 23 1893 1134 San Mateo Pilarcitos Lake and Canyon Comment
  CHSC55725  Collomia heterophylla Steven Triano 1988-5-24 260 San Mateo Along Old La Honda Road ca 0.6 mi s of its jct. with Portola Road and 3.8 mi s of Woodside. 176 Comment
  JROH213  Conium maculatum John Hunter Thomas 1980-5-6 19932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4182808 Image available Conium maculatum Robert A. Norris 1985-10-11 4979 San Mateo San Francisco, near S end of Middle Lake, Chain of Lakes, Gold State Park, San Francisco F. Co., Calif. Fls. white. Comment
  JROH1857  Convolvulus arvensis John Hunter Thomas 1989-5-9 24701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0059768  Convolvulus subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC344849  Conyza Peter Rubtzoff 1987-11-27 9887 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon parkway west of Radio Road junction. Western upper edge of East Fork Colusa Creek Canyon. Comment
  RSA176609  Conyza canadensis John H. Thomas 1961-8-27 9694 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  RSA120502  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-25 546 San Mateo Along ridge on border of Middleton property and Portola State Park, south side of road to park 396 Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  JROH4765  Corallorhiza striata John Hunter Thomas 1985-4-25 23568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5796159 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside. Comment
  RSA181266  Cordylanthus pilosus subsp. pilosus John H. Thomas 1958-8-1 7377 San Mateo Between Searsville and Skyline. Comment
  RSA101017  Cordylanthus pilosus subsp. pilosus G. Oberlander 1949-7-30 355 San Mateo South of Upper Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC101476  Corethrogyne filaginifolia David D. Keck 1932-5-25 1785 San Mateo East side of Crystal Springs Lake 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
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210355  Cornus sericea J. H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC180369  Corylus cornuta subsp. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, E slope of Coast Range above Searsville Lake 304 Comment
  JROH1332  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC180374  Corylus cornuta subsp. californica Walter Knight 1964-9-14 849 San Mateo On sandstone ridge between Peak Mt. and Highway 1 Comment
  POM217105  Corylus cornuta var. californica D. D. Keck 1932-2-12 1362 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 305 Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  RSA481441  Corylus cornuta var. californica L. S. Rose 1938-2-23 38079 San Mateo Woodside. 152 Comment
  SEINET12034011  Corylus cornuta var. californica J. H. Thomas 1959-1 7668 San Mateo Jasper Ridge,about 5 mi SW of Palo Alto 91 Comment
  JROH3635  Cotoneaster pannosus John H. Thomas 1974-10-12 17622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3644  Cotoneaster pannosus John Hunter Thomas 1983-6-2 22329 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH662  Cotula coronopifolia John Hunter Thomas 1981-7-12 20707 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along old beach Comment
  CAS-BOT-BC291462  Cotula coronopifolia Javier Penalosa 1963-2-23 2658 San Mateo South of Crocker Ave., San Bruno Mountain 213 Comment
  RSA706101  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region: Sharp Park Golf Course, Pacifica 15 Comment
  UCR121261  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region, Sharp Park Golf Course, Pacifica 15 Comment
  UCD101809  Crassula aquatica Malcolm A. Nobs 1949-8-26 1580 San Mateo About 1 mile south of Half Moon Bay. Comment
  JROH1890  Crassula connata John Hunter Thomas 1985-4-10 23516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3651  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3660  Crataegus monogyna John Hunter Thomas 1989-4-20 24638 San Mateo Jasper Ridge Biological Preserve, Stanford University; near caretakers trailers Comment
  JROH3662  Crataegus monogyna John Hunter Thomas 1992-5-19 25339 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD163786  Crepis capillaris Peter Rubtzoff 1988-6-9 9926 San Mateo San Bruno Mountains, near parking lot on east side of 'saddle' area. Comment
  JROH666  Crepis vesicaria subsp. taraxacifolia John H. Thomas 1964-4-19 10323 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH672  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-6-6 24765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1952  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1963  Croton setiger John Hunter Thomas 1992-7-24 25394 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1374  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  RSA735620  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 423 San Mateo Pescadero County Park, on Butano Ridge, ca. 5.0-5.5 miles east of Dearborn Park Road 396 Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  RSA735619  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 421 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road. 427 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
  JROH1859  Cuscuta californica var. californica John Hunter Thomas 1978-7-2 19240 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rider's Shack Comment
  UC153904  Cuscuta salina var. major L. R. Abrams 1906-9-30 San Mateo Cooley's Landing 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
  UC1195195  Cynara cardunculus subsp. cardunculus John H. Thomas 1960-6-25 8800 San Mateo between railroad tracks and El Camino Real (along creek running into Redwood Slough, near Maple Street, Redwood City); Redwood City, Redwood Slough 7 Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5003  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1389  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA130387  Cynoglossum grande A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  RSA15257  Cynoglossum grande C. B. Wolf 1927-2-26 220 San Mateo Under oaks on the La Honda Grade. Comment
  SEINET191755  Cynoglossum grande R. C. Foster 1937-4-30 245 San Mateo Along Skyline Blvd just N of road to La Honda Comment
  CDA40497  Cynoglossum grande T. C. Fuller 1960-4-2 4083 San Mateo La Honda Rd., 0.4 mile north of La Honda. 0 Comment
  SEINET12280949  Cynoglossum grande Unknown 1932-1 8924 San Mateo Comment
  CAS-BOT-BC114452  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo Near Lake San Andreas 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
  CAS-BOT-BC114462  Cyperus eragrostis Lewis Samuel Rose 1965-9-20 65107 San Mateo Burlingame, moist open fields. Trousdale Dr & California Dr. 9 Comment
  SBBG32286  Cyperus eragrostis L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Drive and California Drive 9 Comment
  UCD163784  Cyperus eragrostis Peter Rubtzoff 1988-6-9 9924 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along Old Guadalupe Road in the northwestern part of the 'Saddle' area, east of Saddle Trail junction. Comment
  JROH4400  Cyperus erythrorhizos John Hunter Thomas 1988-10-17 24597 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH4402  Cyperus erythrorhizos Toni Corelli 2008-10-1 347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. 103 Comment
  UC673588  Cypripedium fasciculatum Monica Deitrich March 1927 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC198192  Cytisus scoparius Charles Piper Smith 1922-4-29 3507 San Mateo Lake San Andreas Comment
  CAS-BOT-BC198212  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo Olivet Ravine, San Bruno Mountains Comment
  JROH5028  Dactylis glomerata John Hunter Thomas 1988-5-12 24458 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area near bridge between the two parts of Searsville Lake Comment
  CAS-BOT-BC445492  Damasonium californicum Alice Eastwood 1922-4-24 11200 San Mateo On road between Princeton and Morman Comment
  JROH5037  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18328  Danthonia californica var. americana C. B. Wolf 1929-5-10 3707 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UCD61017  Danthonia californica var. americana A. A. Beetle 1942-6-11 3516 San Mateo 5 miles south of San Bruno. Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  UCD127385  Daucus carota Rimo Bacigalupi; G. Thomas Robbins 1955-8-4 5444 San Mateo along grade on Highway No. 1, just south of Pedro Valley. Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  UC32721  Deinandra corymbosa J. Burtt Davy 1893-6-17 812 San Mateo Belmont Comment
  UC419710  Deinandra corymbosa Mrs. H. P. Bracelin 1930-10-26 131 San Mateo between Half Moon Bay and Santa Cruz (s of Pescadero, Ocran Road) Comment
  SD30843  Deinandra corymbosa Marie Cummings 1933-6-5 2124 San Mateo Near Spring Valley Lake Comment
  UC1069489  Deinandra corymbosa G. E. Sindel 1935-7-25 305 San Mateo mouth Pescadero Creek Comment
  CAS-BOT-BC299207  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1893-5-17 s.n. San Mateo Near Milbrae Comment
  CAS-BOT-BC292116  Delairea odorata John H. Thomas 1956-12-23 6480 San Mateo At 198 Oak Court, Menlo Park Comment
  CAS-BOT-BC9222  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountains, Colma Canyon 60 Comment
  CAS-BOT-BC9215  Delphinium californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain, Romanzoffia Ravine 396 Comment
  CAS-BOT-BC9209  Delphinium californicum subsp. californicum Adolph Daniel Edward Elmer 1903-7-1 4548 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC9248  Delphinium decorum Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountains, above Fern Rock Comment
  UC854136  Delphinium hesperium Alice Eastwood 1912-6-10 320 San Mateo Crystal Springs Comment
  JROH3448  Delphinium hesperium subsp. hesperium John Hunter Thomas 1981-5-25 20637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9872  Delphinium nudicaule David Daniels Keck 1934-7-7 2928 San Mateo Kings Mountain, west of summit. 609 Comment
  RSA10344  Delphinium nudicaule H. A. Barker 1926-5-1 575 San Mateo Kings Mt. Comment
  CAS-BOT-BC116522  Delphinium patens subsp. patens Margaret A. Barry 1937-4-4 32 San Mateo on Coal Mine Ridge Comment
  JROH3459  Delphinium patens subsp. patens John Hunter Thomas 1985-4-11 23521 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below and to the east of Searsville Dam Comment
  CAS-BOT-BC7929  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  JROH3466  Delphinium variegatum subsp. variegatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM202455  Delphinium variegatum subsp. variegatum L. S. Rose 1933-4-30 33125 San Mateo Redwood City Comment
  JEPS48647  Dendromecon rigida Elsa Kraeger 1926-2-21 San Mateo along roadside n La Honda Comment
  CAS-BOT-BC630  Dendromecon rigida subsp. rigida George Thomas Oberlander 1950-3-11 414 San Mateo Southern boundary on Cahill Ridge. Comment
  CAS-BOT-BC633  Dendromecon rigida subsp. rigida Ira L. Wiggins 1925-5-24 1747 San Mateo Grade between Woodside and La Honda. Comment
  POM205845  Deschampsia cespitosa E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  SJSU15936  Deschampsia cespitosa subsp. cespitosa John Rawlings, Ken Hickman 2016-5-26 1807 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC192597  Deschampsia cespitosa subsp. holciformis Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  UC157095  Deschampsia cespitosa subsp. holciformis Dr. E. B. Copeland 1903-6-10 3305 San Mateo Montara Point Comment
  UCD63821  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-6-1 San Mateo Hwy. #5, ca. 6 mi. from S.F. Co. line. Comment
  JROH5046  Deschampsia danthonioides John H. Thomas 1957-4-16 6654 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201908  Deschampsia elongata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Dry Pond, Coal Mine Ridge Road Comment
  CAS-BOT-BC201912  Deschampsia elongata M. E. Lang 1923-5-1 s.n. San Mateo (Coal Mine Ridge) Mud Lakes Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC706  Dicentra formosa subsp. formosa Walter Knight; Irja Knight 1965-4-11 1024 San Mateo Guadalupe Road near big rock at Guadalupe Creek. Comment
  CAS-BOT-BC500897  Dichelostemma capitatum Margaret A. Barry 1937-5-15 119 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  SEINET12044684  Dichelostemma capitatum R. S. Ferris 1921-1 2149 San Mateo San Bruno Mt. 183 Comment
  JEPS127848  Dichelostemma capitatum subsp. capitatum Adam C. Schneider 2013-4-7 86 San Mateo Comment
  POM169432  Dichelostemma capitatum subsp. capitatum C. F. Baker 1902-5-4 761 San Mateo Woodside. Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area 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
  JROH5082  Digitaria sanguinalis Ann Lambrecht 2004-7-21 13 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek near intersection with Trail 12. Comment
  CAS-BOT-BC150442  Diplacus aurantiacus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo unspecified Comment
  JROH1908  Dipsacus sativus John H. Thomas 1964-11-15 10528 A San Mateo Jasper Ridge Biological Preserve, Stanford University; to the northeast of the dam Comment
  JROH1910  Dipsacus sativus John Hunter Thomas 1981-10-25 20773 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  CAS-BOT-BC121864  Dirca occidentalis J. H. Thomas 1962-3-24 9840 San Mateo Isenberg Ranch near Langley Hill 548 Comment
  CAS-BOT-BC121868  Dirca occidentalis Alice Eastwood 1922-5-31 11334 San Mateo Crystal Springs Lakes Comment
  HSC67074  Dirca occidentalis Richard Spjut, Donald Stoffey 1980-5-16 6197 San Mateo Crystal Springs Reservoir, 2 mi. W of San Mateo. 61 Comment
  JROH4204  Dirca occidentalis John H. Thomas 1970-1-1 15496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4216  Dirca occidentalis Carol Zabel 1989-2-20 1 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
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  RSA3067  Dirca occidentalis Carl B. Wolf 1931-8-20 2324 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
Read comments
Jul 18 2011
  SBBG26820  Dirca occidentalis L. S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UC765088  Dirca occidentalis R. F. Hoover 1941-2-12 4761 San Mateo above La Honda; La Honda Creek Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  POM196567  Disporum smithii W. R. Dudley 1896-4-17 s.n. San Mateo By road beyond La Honda Summit. 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
  JEPS9518  Dodecatheon clevelandii subsp. patulum W. L. Jepson 1922-3-19 9556 San Mateo back Hillsboro (Buriburi Ridge); Buriburi Ridge Comment
  JROH3381  Dodecatheon hendersonii Le Roy Abrams 1902-4-5 2311 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3383  Dodecatheon hendersonii John H. Thomas 1967-3-26 12416 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1019562  Dodecatheon hendersonii H. J. Thompson 1952-3-6 1516 San Mateo 2 mi w Woodside (Kings Mountain Road); , w of Woodside Comment
  UC877538  Dodecatheon hendersonii L. R. Abrams 1904-3-14 634 c San Mateo Menlo Heights Santa Cruz Mountain Peninsula, Menlo Heights Comment
  JROH1518  Draba verna John Hunter Thomas 1991-4-6 24975 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of dam Comment
  CAS-BOT-BC159547  Drymocallis glandulosa var. glandulosa John H. Thomas 1961-5-7 s.n. San Mateo San Bruno Mountain in northern part of county. 396 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
  RSA152268  Drymocallis glandulosa var. wrangelliana John H. Thomas 1961-5-7 9300 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC860653  Drymocallis glandulosa var. wrangelliana Alice Eastwood 1912-6-10 327 San Mateo Crystal Springs Comment
  UC1206461  Drymocallis glandulosa var. wrangelliana W. R. Dudley 1900-3-17 San Mateo grade up Montara Mt. by road Santa Cruz Peninsula, grade up Montara Mt. Comment
  CAS-BOT-BC67879  Dryopteris arguta John H. Thomas 1961-5-7 9296 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UC1063780  Dryopteris arguta T. Tyrrell 1928-9-26 6 San Mateo 2 mi s San Gregorio (Plot 13); Santa Cruz Quadrangle 91 Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  POM281639  Dryopteris arguta Lyman Benson 1928-12-15 827 San Mateo La Honda, Santa Cruz Mountains 213 Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo 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
  UCSC008147  Dudleya Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC410868  Dudleya caespitosa Lewis S. Rose 1955-7-25 55168 San Mateo Pigeon Point 6 Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  CAS-BOT-BC428368  Dudleya farinosa Lewis S. Rose 1937-9-5 37646 San Mateo Mussel Rocks 60 Comment
  JROH1912  Elatine brachysperma John Hunter Thomas 1982-8-13 21137 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC113593  Eleocharis acicularis George Thomas Oberlander 1950-5-6 841 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC112956  Eleocharis macrostachya Copeland 1903-3-1 3340 San Mateo Searsville Comment
  CAS-BOT-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC235207  Elymus multisetus Phillip C. Wheeler 1965-5-25 s.n. San Mateo San Bruno Mountain. Brisbane Canyon Comment
  UCD62574  Elymus repens R. G. Lander 1958-10-16 San Mateo San Mateo. Comment
  CAS-BOT-BC204303  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  UCD62711  Elymus trachycaulus subsp. trachycaulus L. R. Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  CAS-BOT-BC166518  Epilobium canum subsp. canum James McMurphy 1906-8-24 s.n. San Mateo Los Trancos Creek Comment
  HSC16554  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Rd., Cahill Ridge 244 Comment
  UCR3568  Epilobium ciliatum Wm. Horn Jr. 1963-6-10 630610- 01 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  JROH3050  Epilobium ciliatum subsp. ciliatum John H. Thomas 1973-6-15 16833 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121544  Epilobium ciliatum subsp. ciliatum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4970 A 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
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  SD67309  Epilobium ciliatum subsp. watsonii Darley F. Howe 1967-8-6 4368 San Mateo In swamp. Half Moon Bay. Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3063  Epilobium densiflorum H. J. Dengler 1972-8-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of water along W. Searsville inlet Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  JROH5736  Epilobium minutum John Rawlings 2015-4-5 1656 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  JROH3070  Epilobium minutum John H. Thomas 1963-5-15 10092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC57602  Equisetum telmateia Ira L. Wiggins 1925-4-1 1669 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC57605  Equisetum telmateia L. R. A. 1902-3-16 2282 San Mateo Kings's Mountain Comment
  CAS-BOT-BC57608  Equisetum telmateia John Hunter Thomas 1954-4-3 3816 San Mateo La Honda Creek, about 1 mile north of La Honda 152 Comment
  CAS-BOT-BC57606  Equisetum telmateia L. R. Abrams 1904-3-7 6343 San Mateo Bear Gulch near Time Falls Comment
  CAS-BOT-BC57609  Equisetum telmateia Roxana S. Ferris 1921-4-7 2127 San Mateo South San Francisco Comment
  CAS-BOT-BC57617  Equisetum telmateia J. H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along highway 152 Comment
  POM9508  Equisetum telmateia var. braunii C. F. Baker 1902-3-18 324 San Mateo West side King s Mountain. Comment
  RSA15198  Equisetum telmateia var. braunii C. B. Wolf 1926-10-19 75 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  RSA684684  Equisetum telmateia var. braunii J. Doty 1969-3-27 608 San Mateo S side of State Hwy 84, ca 500 W of Bridge No. 35-165, ca 6 miles E of State Hwy 1. Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  UCR126191  Erica canaliculata H. Schironi 1979-1-18 s.n. San Mateo Near Half Moon Bay Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments
Dec 11 2013
  JROH653  Erigeron canadensis John Hunter Thomas 1988-10-17 24600 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC007751  Erigeron canadensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC295080  Erigeron glaucus Adele Lewis Grant 1917-5-6 935 San Mateo Pebble Beach nr. Pescadero Comment
  CAS-BOT-BC295083  Erigeron glaucus Robert Robertson 1954-5-1 123 San Mateo Pebble Beach 12 Comment
  POM357521  Erigeron glaucus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC1536738  Erigeron glaucus G. H. True Jr. 1936-6-7 482 San Mateo top of seaside bluff at cove 2 mi s of Pescadero 15 Comment
  CAS-BOT-BC295090  Erigeron glaucus Ernest C. Twisselmann 1955-11-19 2496 San Mateo Crocker Estate, Diamont Heights 152 Comment
  CAS-BOT-BC216243  Eriodictyon californicum Josephine D. Randall 1907-6-29 164 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  HSC13523  Eriodictyon californicum J. Wendell Howe 1930-5-21 San Mateo Alpine Creek Comment
  JROH2721  Eriodictyon californicum John H. Thomas 1971-5-30 15969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2723  Eriodictyon californicum D. E. Breedlove 1971-5-31 19391 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2734  Eriodictyon californicum John Hunter Thomas 1992-7-24 25396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223309  Eriodictyon californicum L. S. Rose 1935-6-11 35217 San Mateo Kings Mountain. Comment
  RSA766407  Eriogonum caninum D. D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake. Comment
  JEPS111099  Eriogonum gracile Zoe Ellis Chandik 1993-7-25 San Mateo Along Hwy 280, E side near Farmhill Road.. Comment
  CAS-BOT-BC251982  Eriogonum latifolium Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC251992  Eriogonum latifolium Alice Eastwood 1937-7-25 18884 San Mateo Pebble Beach, Pescadero Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA18467  Eriogonum latifolium Carl B. Wolf 1927-6-29 541 San Mateo South of Pebble Beach near Pescadero. Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC1537276  Eriogonum latifolium Gordon H. True Jr. 1936-6-14 505 San Mateo canyon s Salada Beach 457 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
  CAS-BOT-BC264772  Eriogonum luteolum George Oberlander 1949-7-30 349 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC266075  Eriogonum luteolum Ned Cahill 1974-10-8 382 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi westward from Redwood City Comment
  POM165227  Eriogonum luteolum C. F. Baker 1902-9-10 1674 San Mateo Crystal Springs Lake Comment
  UC912827  Eriogonum luteolum var. luteolum Lewis S. Rose 1937-9-21 37661 San Mateo w Redwood City (Emerald Lake); Emerald Lake 182 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
  CAS-BOT-BC269008  Eriogonum nudum var. auriculatum Ned Cahill 1974-10-8 384 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC268998  Eriogonum nudum var. auriculatum Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  SD12580  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-4 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  CAS-BOT-BC304076  Eriophyllum confertiflorum Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mt. Lower slope on S side above Olivet Cemetary Comment
  RSA463081  Eriophyllum confertiflorum Lyman Benson 1930-5-26 2140 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA675661  Eriophyllum confertiflorum L. S. Rose 1950-5-20 50142 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC301260  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-7-7 s.n. San Mateo By Bear Gulch road Comment
  CAS-BOT-BC301263  Eriophyllum lanatum var. arachnoideum Josephine D. Randall 1907-6-29 68 San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  JEPS19486  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo just s of Linda Mar Comment
  JROH719  Eriophyllum lanatum var. arachnoideum Volney Rattan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  CAS-BOT-BC301972  Eriophyllum staechadifolium E. M. Zeile 1921-7-30 s.n. San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  JROH2598  Erodium botrys John H. Thomas 1971-4-25 15789 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2608  Erodium moschatum John Rawlings 2012-5-25 1106 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dennis Martin site near Road B. 79 Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54822  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4477 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54826  Erysimum franciscanum Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54829  Erysimum franciscanum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  CAS-BOT-BC54863  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54864  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54884  Erysimum franciscanum James Newman 1951-4-24 12 San Mateo Chrystal Springs Reservoir. 152 Comment
  RSA101866  Erysimum franciscanum G. B. Rossbach 1938-4-3 806 San Mateo San Bruno Hills 305 Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) Comment
  UC1034704  Erysimum franciscanum G. B. Rossbach 1955-3-12 566 San Mateo se end Buriburi Ridge (nw side of creek, steep serpentine slope); San Mateo Creek 76 Comment
  UC1034712  Erysimum franciscanum G. B. Rossbach 1955-3-12 569 San Mateo n face of slide s Pedro Point (w edge of Montara Mts.); Devil's Slide 121 Comment
  UC1034726  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1034937  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 900 a&b San Mateo 2.5 mi n Montara (near Devil's Slide, steep granitic slope above sea) Comment
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  RSA0001946  Erysimum franciscanum G. B. Rossbach 1938-5-18 837 San Mateo East side of Crystal Springs Lake. 107 Comment
  CHSC59820  Erythranthe guttata Jan M. Karaz 1979-5-28 78 San Mateo 2.5 mi west of Hwy 280 towards San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. Comment
  SD37720  Erythranthe guttata Marie Cummings 1933-5-23 3722 San Mateo Spring Valley Comment
  SEINET14046269 Image available Erythranthe guttata Ynez Whilton Winblad 1941-1 San Mateo 1 Mile north of Crystal Springs Res. Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  CAS-BOT-BC403534  Eschscholzia californica Le Roy Abrams 1902-5-11 2453 San Mateo Crystal Springs Lake Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  JROH3097  Eschscholzia californica Richard L. Garber 1971-5-11 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM149416  Eschscholzia californica C. F. Baker 1903-5-14 3256 San Mateo Crystal Springs, Lake Comment
  SD40077  Eschscholzia californica Edith A. Purer 1933-7-27 5384 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC403544  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC403557  Eschscholzia californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Cable Ravine Comment
  JROH2977  Eucalyptus globulus John H. Thomas 1980-11-18 20173 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0012612  Eucalyptus globulus John H. Thomas 1965-4-13 10566 San Mateo In San Carlos along El Camino Real. Comment
  CAS-BOT-BC202736  Euonymus occidentalis Margaret A. Barry 1938-5-29 260 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC202746  Euonymus occidentalis W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Los Trancos Creek, above Judge Allen's Comment
  POM124471  Euonymus occidentalis A. D. E. Elmer 1903-1 317 San Mateo Butano Creek Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  RSA15292  Euphorbia crenulata C. B. Wolf 1927-4-3 260 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  CDA4815  Euphorbia helioscopia I. J. Campbell 1956-6-3 San Mateo Pescardo, Pedro Valley. 0 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  JROH1972  Euphorbia spathulata John H. Thomas 1970-4-28 15609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5681  Euphorbia spathulata John Rawlings 2015-3-15 1355 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ridge-top serpentine prairie 188 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
  POM223330  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  CAS-BOT-BC310626  Eurybia radulina J. H. Thomas 1957-8-16 6823 A San Mateo Along Skyline Blvd., near entrance to Isenberg Ranch 518 Comment
  CAS-BOT-BC310615  Eurybia radulina W. R. Dudley 1894-12-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Preston's - La Honda Road Comment
  CAS-BOT-BC310722  Euthamia occidentalis John H. Thomas 1976-10-7 18393 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  SJSU16002  Euthamia occidentalis John Rawlings, Toni Corelli 2016-8-22 1942 San Mateo Franklin Point Trail, Ano Nuevo State Park 10 Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  JROH5149  Festuca arundinacea John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS128400  Festuca bromoides Adam C. Schneider 2013-5-17 132 San Mateo Crystal Springs Reservoir. Comment
  JEPS18167  Festuca californica Rimo Bacigalupi with Galen Smith, L. Dempster, and T. Robbins 1956-5-15 5645 San Mateo first ridge w San Andreas Lake (on road to Pilarcitos Lake) 198 Comment
  JROH5178  Festuca californica W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  SEINET3129197  Festuca californica L. R. Abrams 1902-5-11 2461 San Mateo Capitol springs Comment
  CAS-BOT-BC278359  Festuca californica subsp. californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. West slope of San Bruno Mountain Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  CAS-BOT-BC278472  Festuca idahoensis George Oberlander 1950-4-23 799 San Mateo San Francisco Watershed Reserve Comment
  POM193633  Festuca idahoensis Le Roy Abrams 1902-5-11 2450 San Mateo Crystal Springs. Comment
  JROH5489  Festuca microstachys S. J. McNaughton 1966-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East slopes of serpentine grasslands in Ehrlich's area H. Comment
  CAS-BOT-BC278864  Festuca occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek near Iverson's Place Comment
  RSA152236  Fragaria californica I. L. Wiggins 1925-04 1647 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  SJSU2271  Fragaria chiloensis C. W. Sharsmith 1947-4-11 6752 San Mateo Pescadero Beach near Pescadero Point Comment
  JROH3671  Fragaria vesca John Hunter Thomas 1985-4-25 23564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD113234  Fragaria vesca W. A. Harvey; J. M. Tucker 1948-6-29 1705 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  JEPS127868  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 162 San Mateo Crystal Springs Reservoir Comment
  JROH3541  Frangula californica subsp. californica John H. Thomas 1974-8-11 17509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3574  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211608  Frankenia salina David D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  POM169866  Fritillaria affinis A. D. E. Elmer 1903-05 5045 San Mateo Portola Comment
  UC204192  Fritillaria affinis A. D. E. Elmer May, 1903 5045 San Mateo Portola Comment
  JROH4687  Fritillaria affinis John Hunter Thomas 1985-4-27 23538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  SD27773  Fritillaria affinis Carl B. Wolf 1927-4-3 254 San Mateo About 1 mile above La Honda, Santa Cruz Mountains. 244 Comment
  SEINET12054472  Fritillaria affinis Unknown 1932-1 8965 San Mateo La Honda Road Comment
  SEINET1783225  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 s. n. San Mateo Hillsboro. Comment
  RSA0000351  Fritillaria grayana Inez Smith 1914-3-12 s.n. San Mateo Hillsboro. Comment
  CAS-BOT-BC130381  Fritillaria liliacea H. E. Parks; S. T. Parks 1930-3-10 0400 San Mateo Spring Valley Lakes 152 Comment
  CAS-BOT-BC130386  Fritillaria liliacea John H. Thomas 1969-4-30 15031 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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Sep 10 2014
  UC843895  Fritillaria liliacea Lewis S. Rose 1941-3-7 41008 San Mateo w of Redwood City (Emerald Lake); Emerald Lake 152 Comment
  RSA15248  Fritillaria liliacea Carl B. Wolf 1927-2-19 s.n. San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  CAS-BOT-BC422462  Fumaria officinalis Elizabeth McClintock 1972-3-26 s.n. San Mateo San Bruno Mountain. Brisbane. Comment
  RSA195511  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  RSA130681  Galium aparine Harry A. Dutton 1900-3-25 s.n. San Mateo The Santa Cruz Peninsula Comment
  UCSB9136  Galium aparine Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean; 1 mi S. of Half Moon Bay Comment
  JROH3796  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124751  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge. About 5 miles SW of Palo Alto. 152 Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS14551  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo near stream-bed Lake Pilarcitos Comment
  UCD121948  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos. Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC303471  Gamochaeta ustulata Margaret A. Barry 1937-5-15 141 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC194558  Garrya elliptica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC194564  Garrya elliptica Margaret A. Barry 1938-1-23 222 San Mateo Northeast side of Coal Mine Ridge Comment
  JROH2540  Garrya elliptica W. R. Dudley 1899-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC278664  Gastridium phleoides C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Mill Cr. 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
  UCD66730  Gastridium phleoides Malcolm A. Nobs; S. Galen Smith 1949-8-26 1610 San Mateo About 1 mile south of Pigeon Point. Comment
  CHSC23145  Genista monspessulana Robert A. Schlising 1962-2-24 2082 San Mateo California Coast Range. On dry roadbank near La Honda. Comment
  JROH2011  Genista monspessulana John Hunter Thomas 1981-4-30 20518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2013  Genista monspessulana John Hunter Thomas 1983-4-3 21307 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH2022  Genista monspessulana John Hunter Thomas 1991-5-9 25039 San Mateo Jasper Ridge Biological Preserve, Stanford University; near entrance gate Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  JROH2610  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2612  Geranium dissectum John H. Thomas 1968-4-19 14305 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2621  Geranium dissectum John Hunter Thomas 1992-5-14 25225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH2623  Geranium molle John H. Thomas 1955-5-6 5005 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3151  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  UC75485  Gilia clivorum C. F. Baker Apr 1903 1899 San Mateo San Bruno Hills Comment
  UC75487  Gilia clivorum C. F. Baker Apr 1903 1930 San Mateo Crystal Springs Lake Comment
  UC184620  Gilia tricolor subsp. tricolor Mrs. Inez Ray Smith 1915-5-26 San Mateo near Crystal Springs (Hillsborough); , near Crystal Springs Comment
  CAS-BOT-BC303680  Glebionis coronaria J. H. Thomas 1961-5-7 9321 San Mateo San Bruno Mt. At W end of mountain 243 Comment
  RSA3894  Gnaphalium chilense I. L. Wiggins 1929-7-4 3792 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach Comment
  RSA249493  Gnaphalium luteoalbum John F. Emmel 1971-9-25 390 San Mateo Along Radio Road, at 1000 ft. contour, NW end of San Bruno Mts., 0.3 air mile NW of 1314 ft summit. 305 Comment
  JROH789  Gnaphalium palustre John Hunter Thomas 1982-11-6 21196 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC307438  Gnaphalium palustre R. S. Ferris 1917-10-19 726 San Mateo Crystal Springs Lake near dam Comment
  UCR254881  Gnaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  SEINET11835908  Grindelia E. A. Purer 1933-1 5369 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC304510  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304529  Grindelia hirsutula Saichi Kawahara 1969-6-15 426 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC304533  Grindelia hirsutula Lewis S. Rose 1933-7-21 33306 San Mateo Montara Comment
  CAS-BOT-BC304543  Grindelia hirsutula W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. By Cahill Ridge Road nor. of McFarland's Comment
  CAS-BOT-BC304559  Grindelia hirsutula Alice Eastwood 1912-6-10 322 San Mateo Crystal Springs Comment
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  JROH818  Grindelia hirsutula John Hunter Thomas 1978-5-12 19203 San Mateo Jasper Ridge Biological Preserve, Stanford University; draw to Ridge from near the dam Comment
  JROH822  Grindelia hirsutula John Hunter Thomas 1981-5-25 20630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH826  Grindelia hirsutula John Hunter Thomas 1987-5-26 24316 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121573  Grindelia hirsutula subsp. hirsutula George K. Helmkamp, E. A. Helmkamp 1999-6-28 5005 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  SJSU15766  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 b San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  POM181504  Grindelia stricta var. platyphylla H. F. Copeland 1928-2-25 982 San Mateo Montara. Comment
  RSA18368  Grindelia stricta var. platyphylla C. B. Wolf 1927-6-29 540 San Mateo South of Pebble Beach near Pescadero Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  UCD132574  Grindelia stricta var. platyphylla Julian A. Steyermark 1932-10-21 s.n. San Mateo Pigeon Point. Comment
  UCSC006056  Grindelia stricta var. platyphylla Randall Morgan 1999-7-12 3587 San Mateo 1+ mile north of Bean Hollow State Beach Comment
  SJSU16022  Hainardia cylindrica John Rawlings, Toni Corelli 2016-5-13 1793 San Mateo Fairway Dr. access path to Mori Point. USGS Montara Mountain 7.5 Minute (1:24,000 Scale) 34 Comment
  CAS-BOT-BC309537  Helenium puberulum Josephine D. Randall 1907-7-24 71 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC1192221  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1576 San Mateo marsh s of Rockaway Beach Comment
  CAS-BOT-BC309528  Helenium puberulum Philip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountain. In Colma Canyon 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
  CAS-BOT-BC305339  Helianthella castanea Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Near fence separating Brisbane from Crocker Estate portion of mountain Comment
  SD39698  Heliotropium curassavicum Edith A. Purer 1932-7-18 4010 San Mateo Half Moon Bay Comment
  CDA40616  Heliotropium curassavicum var. oculatum Mickelson 1958-4-9 385 -58 San Mateo Metsymoto property, East Palo Alto. 0 Comment
  JROH1166  Helminthotheca echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road at edge of Searsville Lake. Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  CAS-BOT-BC314909  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-30 224 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JEPS40999  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo w Redwood City; Emerald Lake 243 Comment
  LA203705  Hemizonia congesta subsp. luzulifolia LeRoy Abrams; 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  CAS-BOT-BC314915  Hemizonia congesta subsp. luzulifolia Duncan M. Porter 1960-10-12 726 San Mateo Meadow at the crest of ridge above Webb Ranch (area H), Jasper Ridge Biological Preserve Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC314935  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1956-5-28 56082 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  UCR80235  Hemizonia corymbosa David D. Keck 1932-5-25 1784 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  POM360252  Hemizonia corymbosa subsp. corymbosa E. A. Purer 1933-7-27 5339 San Mateo Pigeon Point Comment
  POM56175  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-10-1 1739 San Mateo Pillar Point. Comment
  RSA81624  Hemizonia corymbosa subsp. corymbosa James I. McMurphy 1907-8-6 s.n. San Mateo Between Woodside and Crystal Springs. Comment
  POM195795  Hemizonia luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs. Comment
  RSA81631  Hemizonia luzulifolia James I. McMurphy 1909-6-13 s.n. San Mateo Millbrae hills. Comment
  RSA124753  Hemizonia luzulifolia subsp. rudis John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, 5 miles SW of Palo Alto. 152 Comment
  POM223640  Hemizonia luzulifolia subsp. rudis L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  POM287747  Heracleum maximum Lyman Benson 1931-4-13 2710 San Mateo Behind Stanford University, bottom land at junction with Corte Madera Creek Comment
  JROH878  Hesperevax sparsiflora var. sparsiflora H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH888  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1980-5-8 19950 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH900  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-9 25044 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JROH4227  Hesperocnide tenella John H. Thomas 1964-4-11 10307 San Mateo Jasper Ridge Biological Preserve, Stanford University. Base of sandstone cliffs below dam Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1601216  Hesperolinon micranthum Helen K. Sharsmith 1947-6-3 3976 San Mateo near upper Crystal Springs Lake; Outer South Coast Ranges 152 Comment
  CAS-BOT-BC148471  Heteromeles arbutifolia Fred Hemphill 1973-4-15 681 San Mateo San Carlos, chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA71287  Heteromeles arbutifolia L. S. Rose 1949-8-10 49156 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  JROH5895  Heteromeles arbutifolia M. Ray 1982-3-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail leading to the west side of the dam. Comment
  CAS-BOT-BC310272  Heterotheca grandiflora Philip Wheeler 1966-10-16 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  SD30675  Heterotheca sessiliflora subsp. bolanderi Edith A. Purer 1933-8-4 5400 San Mateo Along Bayshore Highway near Redwood City. Comment
  CAS-BOT-BC420891  Heuchera micrantha var. diversifolia Peter Rubtzoff 1953-5-14 1342 San Mateo Pilarcitos Creek canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC319634  Hieracium albiflorum David D. Keck 1934-7-7 2927 San Mateo Kings Mountain 548 Comment
  CAS-BOT-BC319638  Hieracium albiflorum Josephine D. Randall 1907-6-29 81 San Mateo Kings Mt. Road, Santa Cruz Peninsula Comment
  POM52661  Hieracium albiflorum C. F. Baker 1902-1-15 236 San Mateo Kings Mountain. West side of King's Mountain. Comment
  POM207955  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo West side of King's Mountain Comment
  JROH5577  Hirschfeldia incana John Rawlings 2012-7-9 1203 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  UCD84964  Holcus lanatus Josephine D. Randall 1907-6-29 159 San Mateo Portola Valley. Comment
  CAS-BOT-BC228580  Holodiscus discolor Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1938 San Mateo San Bruno State Park, Summit Loop Trail just above the Eucalyptus grove N of the road from the parking area, NE-facing slope 238 Comment
  CAS-BOT-BC150057  Holodiscus discolor var. discolor Jay B. Walker; Noah Goldstein 1994-8-14 908 San Mateo Pomponio Creek Road. 5 km south of jct Hwy 84 and Hwy 1 10 Comment
  CAS-BOT-BC150067  Holodiscus discolor var. discolor David D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd., Santa Cruz Mountains Comment
  JROH3688  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  JROH5931  Holodiscus discolor var. discolor L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station on the top of Jasper Ridge. Comment
  SEINET10826894  Hordeum brachyantherum subsp. brachyantherum Adolph D. E. Elmer Elmer 4851 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC289538  Hordeum brachyantherum subsp. californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  UCD85535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  CAS-BOT-BC285147  Hordeum marinum subsp. gussoneanum Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC285154  Hordeum marinum subsp. gussoneanum George Oberlander 1950-7-15 1040 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5245  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1984-4-24 23306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5778  Hordeum marinum subsp. gussoneanum John Rawlings 2016-4-19 1725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E at Trail 11 108 Comment
  SEINET10595756  Hordeum murinum Delzie Demaree 1933-7-27 Demaree 10553 San Mateo Stabilized sand dunes 2 miles S of Pigeon Point. Comment
  CAS-BOT-BC173821  Hordeum murinum subsp. leporinum Peter Rubtzoff 1977-4-14 8944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  JROH5261  Hordeum murinum subsp. leporinum John Rawlings 2013-3-24 1125 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy verge of Rd C at Rd D intersection 158 Comment
  CAS-BOT-BC271355  Hordeum vulgare Fred Hemphill 1973-4-22 733 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  RSA181227  Horkelia californica John H. Thomas 1964-6-19 10425 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  SD39947  Horkelia californica Edith A. Purer 1933-7-27 5341 San Mateo High stabilized sand dunes, Pigeon Point Comment
  CAS-BOT-BC536144  Horkelia californica Helen D. Geis 1901-10-25 s.n. San Mateo Spanishtown [Half Moon Bay] near cemetery Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  RSA122282  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mile SE of Pigeon Point. 30 Comment
  SBBG32394  Horkelia californica var. californica L. S. Rose 1966-8-20 San Mateo head of Colma Cyn, San Bruno Mtn 205 Comment
  UCD165064  Hosackia gracilis Peter Rubtzoff; Roman Gankin 1975-5-21 7972 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UCD77838  Hosackia stipularis Robert E. Preston 2001-6-1 1538 San Mateo Ca. 7 mi nw of Boulder Creek. 658 Comment
  CAS-BOT-BC400964  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach so. of Pescadero Comment
  JROH2770  Hypericum calycinum Toni Corelli 2008-10-15 355 San Mateo Jasper Ridge Biological Preserve, Stanford University; west of Road C, beyond Trail 1, before low flow crossing 83 Comment
  UCR121587  Hypericum calycinum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4966 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
  CDA19135  Hypericum canariense R. Pummer 2001-7-16 PDR 064513 San Mateo San Francisco Peninsula; W of Hwy 1, near Gazos Creek between Pigeon Pt. and Ano Nuevo. 0 Comment
  CAS-BOT-BC311392  Hypochaeris glabra John H. Thomas 1958-3-19 7051 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  POM289690  Hypochaeris glabra Lyman Benson 1936-5-9 7606 San Mateo Menlo Park; U.S. [Route] 99; Watershed: San Francisco Bay. 30 Comment
  JROH931  Hypochaeris radicata John Hunter Thomas 1977-6-16 18759 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6414  Hypochaeris radicata D. D. Keck 1932-5-6 1462 San Mateo Belmont. Comment
  SEINET11259798 Image available Hypochaeris radicata K. Thorne, J. Chandler 1986-7-25 4918 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach. Comment
  UC1069670  Hypochaeris radicata N. K. Carlson 1935-6-29 109 San Mateo 1 mi s Pescadero; Santa Cruz Quad. Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  CAS-BOT-BC311488  Hypochaeris radicata W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. W. of Baden Comment
  JROH935  Hypochaeris radicata John Hunter Thomas 1983-7-7 22821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM250983  Iris douglasiana Lyman Benson 1935-4-27 6417 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  CAS-BOT-BC133671  Iris longipetala Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  SJSU7515  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo S base San Bruno Mts, S San Francisco 30 Comment
  JROH4436  Iris pseudacorus John Hunter Thomas 1990-6-7 24865 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake at boat ramp near bridge over the 2 halves of Searsville Lake. Comment
  UC184381  Isocoma menziesii var. vernonioides Harriet A. Walker 1915-9-19 3833 San Mateo near Uncle Tom's Cabin; road to Burlingame Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57726  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond Comment
  CAS-BOT-BC112605  Isolepis cernua Alice Eastwood; John Thomas Howell 1938-6-26 6066 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC112623  Isolepis cernua W. R. Dudley 1906-10-12 s.n. San Mateo Pond 20 Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  POM312326  Jaumea carnosa Malcolm A. Nobs, S. Galen Smith 1949-8-26 1598 San Mateo Marshes at the mouth of Pescadero Creek. Comment
  UCD133403  Jaumea carnosa Malcolm A. Nobs; S. Galen Smith 1949-8-26 1598 San Mateo Pescadero Creek. Comment
  JROH2772  Juglans hindsii John Hunter Thomas 1978-7-14 19262 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the west of the low flow crossing of San Francisquito Cr. Comment
  CAS-BOT-BC352225  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. 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
  POM290139  Juncus bufonius var. congestus Lyman Benson 1930-5-26 2145 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH4458  Juncus bufonius var. occidentalis John H. Thomas 1956-4-7 5619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15977  Juncus bufonius var. occidentalis John Rawlings, Toni Corelli 2016-5-13 1876 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UCR244744  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UC1101089  Juncus hesperius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1588 San Mateo about 1 mi s Half Moon Bay Comment
  JEPS63809  Juncus lescurii unknown 1925-5-28 3 San Mateo Salada Comment
  JROH4478  Juncus occidentalis John H. Thomas 1963-5-12 10078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4481  Juncus occidentalis John Hunter Thomas 1978-4-20 19078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173845  Juncus occidentalis Peter Rubtzoff 1978-7-8 9222 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  UCD164095  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo San Bruno Mountians.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  JEPS128399  Juncus patens Adam C. Schneider 2013-5-17 129 San Mateo Crystal Springs Reservoir. Comment
  JEPS67130  Juncus phaeocephalus unknown 1925-5-28 2 San Mateo Salada Comment
  CAS-BOT-BC210072  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1975-9-11 s.n. San Mateo Pond NW of and across odl Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS67129  Juncus phaeocephalus var. phaeocephalus unknown 1925-5-28 1 San Mateo Salada Comment
  SJSU16014  Juncus xiphioides John Rawlings, Ken Hickman 2016-5-26 1811 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  HSC23945  Kickxia spuria Mary Katherine Wicksten 1971-7-15 172 San Mateo Huddart Park, along wall in front of residence Comment
  JROH4042  Kickxia spuria H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in S.F. Creek bed just below N. bend Comment
  SJSU15448  Koeleria gerardi John Rawlings 2012-5-27 1105 San Mateo Near high point of Dusk-footed Woodrat Trail (north loop trail), Pulgas Ridge Open Space Preserve (MROSD). 246 Comment
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Jun 7 2017
  JROH5272  Koeleria macrantha W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Escobar cutoff (Trail 15), left side of trail past exclosure. Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  CAS-BOT-BC273736  Koeleria pyramidata W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Lake Comment
  CAS-BOT-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC341631  Lagophylla ramosissima Margaret A. Barry 1937-6-22 168 San Mateo Coal Mine Ridge Comment
  JROH968  Lagophylla ramosissima John Hunter Thomas 1986-6-7 24084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341636  Lagophylla ramosissima E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera 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-BC339079  Lasthenia californica A. A. Heller 1907-4-25 8465 San Mateo San Bruno Hills Comment
  POM52845  Lasthenia californica A. D. E. Elmer 1903-04 4738 San Mateo San Bruno Hills Comment
  RSA195530  Lasthenia californica John H. Thomas 1966-4-6 11552 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  CAS-BOT-BC339064  Lasthenia californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain. Slope above Fern Rock Comment
  CAS-BOT-BC339088  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  RSA585988  Lasthenia californica Adree M. Desrochers 1988-4-21 306 San Mateo Near Palo Alto. Near Palo Alto. Jasper Ridge, Biological Preserve of Stanford University. Comment
  JEPS10183  Lasthenia californica subsp. californica W. L. Jepson 1919-4-19 8230 San Mateo San Bruno Hills Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS20311  Lasthenia californica subsp. californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd. w San Mateo 182 Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  SJSU11826  Lasthenia californica subsp. macrantha P. D. Kinzli 1964-4-17 73 San Mateo by outlet of Pescadero Cr into ocean Comment
  SD38969  Lasthenia glabrata Delzie Demaree 1932-4-30 9083 San Mateo Alkali field near Moss Landing. Comment
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Feb 22 2015
  JEPS98726  Lasthenia glabrata subsp. glabrata Raymund Chan 1997-4-12 97012 San Mateo 50 m S of Edgewood Road just before its junction with Canada Road, W of I-280; watershed property; plants not visible from road Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
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Sep 9 2011
  CAS-BOT-BC355542  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3793 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  JEPS28873  Lasthenia gracilis V. F. Hesse 1962-7-19 3166 San Mateo 6 Comment
  CAS-BOT-BC368186  Lasthenia minor Robert Robertson 1959-5-1 114 San Mateo Pescadero Beach. 9 Comment
  UCSC003528  Lasthenia minor Randall Morgan 2001-5-9 3728 San Mateo Bean Hollow State Beach parking area, San Mateo County Comment
  SEINET12153854  Lathyrus jepsonii Unknown 1933-1 70 San Mateo Alpine Rd Comment
  SD39834  Lathyrus littoralis Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  SEINET12153905  Lathyrus littoralis M. T. Doutt 1931-1 244 San Mateo S of San Francisco, nr Salada Comment
  SEINET11062227 Image available Lathyrus vestitus subsp. bolanderi A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UCD106536  Lathyrus vestitus var. ochropetalus A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC69549  Lathyrus vestitus var. vestitus J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon 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-BC323184  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  JEPS39180  Layia gaillardioides W. L. Jepson 1914-3-22 5735 San Mateo Redwood City Comment
  CAS-BOT-BC321093  Layia gaillardioides W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula, hills SW of Baden Comment
  CAS-BOT-BC327459  Layia hieracioides David D. Keck; Wm. M. Hiesey 1940-6-1 s.n. [likely 5166 ] San Mateo Skyline Boulevard opposite north end of Lake San Andreas 137 Comment
  CAS-BOT-BC327469  Layia hieracioides John H. Thomas 1953-5-2 3085 San Mateo Sunset Beach State Park, near USG&GS Markers: Park 1931 and Park 2-1931. 15 Comment
  JROH988  Layia hieracioides John Hunter Thomas 1980-5-8 19945 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA15482  Layia hieracioides L. S. Rose 1936-5-28 36309 San Mateo Emerald lake, W. of Redwood City 91 Comment
  SD39841  Layia hieracioides Edith A. Purer 1933-7-27 5397 San Mateo Two miles south of Pigeon Point Comment
  UCR256306  Layia hieracioides Peter Rubtzoff, Roman Gankin, Elizabeth McClintock, Bill Burley 1979-6-7 9289 San Mateo Central Coast, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  CAS-BOT-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  JROH993  Layia platyglossa John H. Thomas 1966-4-12 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382095  Layia platyglossa John H. Thomas 1967-5-2 12816 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mt. intersection; Hillsborough Comment
  JROH4535  Lemna minor John Hunter Thomas 1978-7-2 19252 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  RSA18088  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Francisco, Skyline Drive Comment
  CAS-BOT-BC221526  Lepechinia calycina Miss E. Cannon No date on label s.n. San Mateo Near Moss Beach Comment
  CAS-BOT-BC221535  Lepechinia calycina Fred Hemphill 1973-4-8 661 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC306600  Lepechinia calycina A. D. E. Elmer Jun 1903 4416 San Mateo San Mateo Comment
  JROH1536  Lepidium campestre V. Paranal 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC89130  Lepidium didymum J. H. Thomas 1958-8-1 7370 San Mateo About 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  UCSB2284  Lepidium didymum Walker, Clifford 1954-4-20 San Mateo 100 yards from Ocean on cliff, 1 mi. S Half Moon Bay Comment
  CAS-BOT-BC12600  Lepidium nitidum Margaret A. Barry 1937-5-8 83 San Mateo On Coal Mine Ridge. Comment
  CAS-BOT-BC12751  Lepidium oxycarpum Le Roy Abrams 1902-5-16 2277 San Mateo Cooley's Landing. Comment
  SBBG29869  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at the border of San Francisco Bay Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12946  Lepidium strictum John H. Thomas 1966-4-12 11556 San Mateo East Palo Alto. Along sidewalks near Woodland Avenue and University Avenue. Comment
  POM176894  Lepidium strictum Helen M. Edwards 1917-2-8 s.n. San Mateo Stanford University. Campus. Comment
  CAS-BOT-BC226538  Leptosiphon acicularis Margaret A. Barry 1937-5-1 46 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC226597  Leptosiphon ambiguus James McMurphy 1906-5-8 s.n. San Mateo Head of Crystal Springs Lakes Comment
  CAS-BOT-BC226607  Leptosiphon ambiguus L. R. A. 1902-5-4 2415 San Mateo Woodside Comment
  POM65197  Leptosiphon ambiguus C. F. Baker 1902-5-4 s.n. San Mateo Woodside. Comment
  JROH3173  Leptosiphon androsaceus John Hunter Thomas 1985-5-22 23671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65863  Leptosiphon androsaceus L. R. Abrams 1901-05 1569 San Mateo Woodside Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  UC2049870  Leptosiphon androsaceus H. W. Johansen 1958-8-13 116 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  POM279122  Leptosiphon androsaceus Lyman Benson 1928-4-16 156 San Mateo Summit Searsville Ridge. Stanford University. 152 Comment
  UC106675  Leptosiphon croceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach (Wienke's) Moss Beach Comment
Read comments
Jun 26 2010
  RSA128499  Leptosiphon liniflorus Harry A. Dutton 1900-4-3 s.n. San Mateo Woodside serpentine [?] Comment
  SBBG39507  Leptosiphon liniflorus L. S. Rose 1970-5-9 70040 San Mateo Black Mtn near Skyline, Hillsborough 121 Comment
  UCSB12382  Leptosiphon liniflorus Dearing, Hugh; Dearing, Margaret 1933-5-14 San Mateo Skyline Drive, so. of San Francisco Comment
  JROH3188  Leptosiphon parviflorus John H. Thomas 1955-5-6 5003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA5157  Leptospermum laevigatum T. C. Fuller 1969-5-15 18476 San Mateo Hillslope opposite the welfare farm, Highway 92 to San Mateo, east limits of Half Moon Bay. 0 Comment
  UCD78147  Leptospermum laevigatum Robert E. Preston 2008-4-1 2599 San Mateo Lower Crystal Springs Reservoir, 0.12 mi SW of jct Hwy 92 and Hwy 35 92 Comment
  CAS-BOT-BC324065  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  JEPS21650  Lessingia arachnoidea L. R. A. 1902-9-2 2996 San Mateo Crystal Lake Comment
  JEPS40995  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo w of San Mateo; Crystal Springs Lakes Comment
  POM289269B  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  UC1287459  Lessingia arachnoidea Willard Spence 1960-10-16 635 San Mateo Ralston Road 0.2 mi off Skyline Blvd. Comment
  CAS-BOT-BC324072  Lessingia germanorum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains, Reservoir Hill. 137 Comment
  JROH1027  Lessingia glandulifera var. glandulifera Carol Zabel 1989-9-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; near side of Road E, 100 yards down from intersection of Roads D, E, and F Comment
  CAS-BOT-BC324175  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  CAS-BOT-BC324182  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, W of Redwood City 152 Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. 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
  JROH1038  Leucanthemum vulgare John Rawlings 2012-6-19 1135 San Mateo Jasper Ridge Biological Preserve, Stanford University. South bank of dry stream bed of Bear Creek at Serpentine. 84 Comment
  CAS-BOT-BC342094  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd. north of Millbrae Comment
  RSA800278  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, ''Saddle'' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  UC773784  Leymus X vancouverensis Frank W. Gould 1948-6-19 4716 San Mateo about 2 mi s Pescadero (sand dunes at high tide level) Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  UCD64550  Leymus condensatus David L. Morgan 1955-8-1 San Mateo Lower San Mateo County: 1 mile N of Santa Cruz county line on Hwy 1. 22 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
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  JROH2984  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  RSA3936  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  JROH4689  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1989-6-17 24776 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UC137902  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  RSA644976  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo Aong E side of Hwy 1 S of Moss Beach and directly opposite Half Moon Bay airport. 10 Comment
  CDA36142  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  UCD166487  Limosella Peter Rubtzoff 1965-10-19 5661 San Mateo Pilarcitos Lake. Comment
  JROH4055  Limosella acaulis John Hunter Thomas 1980-11-12 20169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238364  Limosella aquatica W. R. Dudley 1909-10-4 s.n. San Mateo The Santa Cruz Mountain Peninsula. W. twin-pond, northern part of county Comment
  UC306700  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC23367  Linanthus androsaceus J. Burtt Davy 1895-4-20 1072 San Mateo Crystal Springs Lake Comment
  UC336384  Linanthus androsaceus unknown 491 San Mateo Colma, S.P.R.R. Colma Comment
  UC133890  Linanthus liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside Comment
  UC494224  Linanthus liniflorus Mrs. G. Earle Kelly 1932-4-19 San Mateo San Mateo Comment
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM222890  Lithocarpus densiflorus var. densiflorus S. S. Berry 1899-3-13 s.n. San Mateo King's Mountain Road. 549 Comment
  RSA212176  Lithocarpus densiflorus var. densiflorus L. S. Rose 1969-8-22 69098 San Mateo Skyline Blvd. & La Honda Road. 610 Comment
  CAS-BOT-BC430768  Lithophragma affine H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  RSA159426  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC858160  Lithophragma heterophyllum Lewis S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  JROH746  Logfia gallica John Hunter Thomas 1989-5-9 24705 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-BC283223  Lolium multiflorum W. R. Dudley 1906-6-12 s.n. San Mateo Santa Cruz Mountain Peninsula. On mountain side W of Tripps Store, Woodside Comment
  CAS-BOT-BC269126  Lolium perenne George Oberlander 1949-7-25 249 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA786667  Lolium perenne subsp. multiflorum Peter Rubtzoff 1976-6-13 8629 San Mateo San Bruno Mountains: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the NW corner of Fog Forest. Comment
  JROH5548  Lomatium caruifolium var. caruifolium John Rawlings 2013-4-2 1142 San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  JEPS17132  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 b San Mateo Redwood City Comment
  JROH256  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1958-5-10 7145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH263  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1666  Lonicera hispidula John Hunter Thomas 1992-7-24 25382 San Mateo Jasper Ridge Biological Preserve, Stanford University; causeway and boat launching ramp Comment
  RSA120039  Lonicera hispidula var. vacillans W. R. Dudley 1896-9-15 s.n. San Mateo El Corte Madera Creek. Santa Cruz Mountain Peninsula. Comment
  UC484309  Lonicera hispidula var. vacillans Carl B. Wolf 1930-11-5 1805 San Mateo 2 mi w La Honda; Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC243968  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  UCD163731  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  SBBG25074  Lotus corniculatus D. Myrick 1966-6-11 1448 San Mateo near Pescadero off Hwy 1 Comment
  UCR123137  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6798 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
  JROH2044  Lotus corniculatus John Hunter Thomas 1977-6-16 18754 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  JROH2051  Lotus corniculatus Carol Zabel 1989-6-1 17 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, just downstream from low-flow crossing on Road C Comment
  SEINET3696856 Image available Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo South of Pescadero 30 Comment
  UC311112  Lotus formosissimus A. D. E. Elmer Apr 1903 4860 San Mateo Lake San Andreas Comment
  CDA28794  Lotus junceus D. G. Kelch 2009-6-9 9 .397 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM276674  Lotus scoparius var. scoparius Lyman Benson 1928-12-15 832 San Mateo La Honda 213 Comment
  POM18648  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake. Comment
  POM276637  Lotus wrangelianus Lyman Benson 1930-5-1 2052 San Mateo Stanford University. 107 Comment
  CAS-BOT-BC60245  Lunaria annua Emma Millett 1917-4-4 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  CAS-BOT-BC60248  Lunaria annua J. H. Thomas 1965-4-29 10632 San Mateo San Bruno Mountain. Comment
  SEINET10488443  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  SEINET10969885  Lupinus albifrons Donald E. Bright 1962-4-16 Bright 225 San Mateo Disturbed roadside, 8 miles ne of santa cruz, near graham hill and sims road, Along hwy 17. Bushy plant ca 2 ft high and 3-4 ft broad Comment
  CAS-BOT-BC195819  Lupinus albifrons var. albifrons A. D. E. Elmer 1903-5-1 4643 San Mateo Belmont Comment
  CAS-BOT-BC195820  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195788  Lupinus albifrons var. albifrons Charles Piper Smith 1946-7-15 46373 San Mateo Belmont, Vanderlaan Summit Comment
  CAS-BOT-BC195798  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48465 San Mateo Highway 5 - junction Burlingame 4 mile road, 2.7 miles south Comment
  CAS-BOT-BC196111  Lupinus albifrons var. collinus Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In Colma Canyon Comment
  CAS-BOT-BC196116  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  CAS-BOT-BC196125  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  UC1300892  Lupinus albifrons var. collinus Helen K. Sharsmith 1963-2-16 5139 San Mateo lower open slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, slopes of San Bruno Mountain 106 Comment
  UCD106267  Lupinus albifrons var. collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills. Comment
  SEINET10871208  Lupinus albifrons var. flumineus Charles Piper Smith 1946-3-26 Smith 46115 San Mateo Hwy 5, san francisco co jail road n Comment
  CAS-BOT-BC27392  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  UC201982  Lupinus arboreus A. D. E. Elmer May, 1903 4414 San Mateo Colma Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  SEINET12154472  Lupinus bicolor Unknown 1932-1 9116 San Mateo Half Moon Bay Comment
  UCD107181  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced. Comment
  SEINET7545231  Lupinus bicolor subsp. pipersmithii C. P. Smith 1908-1 1403 San Mateo Stanford University. Cedro Cottage Field Comment
  POM10642  Lupinus bicolor subsp. tridentatus C. F. Baker 1903-4-8 1921 San Mateo San Andreas Lake Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  UC127061 Image available Lupinus eximius J. Burtt Davy 1895-4-20 1050 San Mateo Lake Pilarcitos; ; Lake Pilarcitos, San Mateo Co Comment
  SEINET10490755  Lupinus formosus var. formosus Alice Eastwood, John Thomas Howell 1938-6-26 Eastwood 6077 San Mateo Crystal springs lake. Region of type locality. Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  SD37898  Lupinus latifolius var. latifolius Marie Cummings 1933-5-18 3664 San Mateo Los Altos Comment
  UC729631  Lupinus microcarpus var. densiflorus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road e Skyline Blvd. 304 Comment
  SBBG39518  Lupinus microcarpus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  UC1129636  Lupinus nanus W. W. Akey 1935-5-25 25 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  UC138034  Lupinus nanus C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  UC201937  Lupinus nanus W. A. Setchell 1912-5-26 San Mateo Montara Comment
  UC15978  Lupinus nanus Ivar Tidestrom May 1894 San Mateo Comment
  RSA413810  Lupinus nanus subsp. nanus D. D. Keck 1932-5-11 1769 San Mateo Two miles north of San Gregorio. 15 Comment
  JROH2145  Lupinus succulentus John H. Thomas 1974-4-12 17143 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Escobar gate Comment
  SEINET12154824  Lupinus succulentus Unknown 1932-1 8978 San Mateo Los Ticiness woods Comment
  POM276255  Lupinus vallicola subsp. apricus Lyman D. Benson 1930-5-1 2049 San Mateo Stanford University. 122 Comment
  POM77615  Lupinus vallicola subsp. apricus C. P. Smith 1921-3-12 3227 San Mateo University Park Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  SEINET10870826  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 Smith 46118 San Mateo Woodside, 2.3 m N. Comment
  JEPS125910  Lupinus variicolor Dean W. Taylor 2002-3-20 17955 San Mateo Franklin Point, coastal bluff, about 1 mile SE along the coast from actual point. Comment
  POM181506  Lupinus variicolor H. F. Copeland 1928-2-25 983 San Mateo Montara. Comment
  SEINET7076091 Image available Lupinus variicolor A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  UC127021  Lupinus variicolor Alice Eastwood April 1896 San Mateo bet. Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  UC903067  Lupinus variicolor Ethel Crum 1934-4-29 1699 San Mateo 4 mi s Pescadero (open slope near ocean); s of Pescadero Comment
  SEINET10489105  Lupinus variicolor Elizabeth M. McClintock; Baki Kasapligil; Walter Knight; Irja Knight, Baki Kasapligil; Walter Knight; Irja Knight 1967-7-18 McClintock s.n. San Mateo San bruno mtn. In old quarry in colma canyon. Comment
  UCD109674  Lupinus variicolor Kathyrn L. Koch 1965-5-1 47 San Mateo just south of State Highway 1 junction, across from Playa de las Frijoles State Park. Comment
  POM290438  Luzula comosa Arthur L. Cohen 1935-4-21 634 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  JROH4165  Lycopersicon esculentum John Hunter Thomas 1981-10-25 20767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  JROH2948  Lythrum hyssopifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10452840  Lythrum hyssopifolia Mary Susan Taylor 1978-8-30 Taylor 1874 San Mateo Comment
  CDA19835  Lythrum salicaria R. Pummer 2001-11-21 PDR 064586 San Mateo San Francisco Bay Area; La Honda Homeowners Association on Entrada Rd. 0 Comment
  CAS-BOT-BC343905  Madia elegans Barrett Anderson 1986-8-12 3258 San Mateo Skyline Blvd just N of Crystal Springs Rd. 135 Comment
  JROH1056  Madia exigua John Hunter Thomas 1981-5-25 20636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA107074  Madia exigua K. C. Rose 1956-5-28 56083 San Mateo Emerald Lake hill W of Redwood City. 183 Comment
  POM362166  Madia exigua D. D. Keck 1932-5-11 1761 San Mateo Above Searsville Lake, La Honda road, east slope of Santa Cruz Mountains, San Mateo Mountains Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  JROH1067  Madia gracilis John H. Thomas 1958-5-10 7142 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1069  Madia gracilis Oz Garton 1968-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1076  Madia gracilis John Hunter Thomas 1978-5-12 19204 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH1091  Madia gracilis John Hunter Thomas 1988-4-28 24417 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1093  Madia gracilis John Hunter Thomas 1988-5-25 24488 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC345142  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo About 2 miles SW of Pescadero 60 Comment
  CAS-BOT-BC353475  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC345108  Madia sativa W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Colma Comment
  CAS-BOT-BC345132  Madia sativa David D. Keck 1941-7-1 1869 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CAS-BOT-BC510725  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SD39134  Maianthemum racemosum subsp. amplexicaule McCallum 1933-5-22 2145 San Mateo Damp woods in Los Trancus woods. Comment
  CHSC56088  Maianthemum stellatum Steven H. Roth 1980-4-4 16 San Mateo 200 m southeast of Portola Road at the Portola Valley Library, and 5 mi southwest of the north end of Stanford Linear Accelerator. Comment
  CAS-BOT-BC514157  Maianthemum stellatum J. H. Thomas 1949-4-14 272 San Mateo King's Mountain Comment
  CAS-BOT-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge Comment
  POM223310  Malacothamnus arcuatus L. S. Rose 1935-6-11 s.n. San Mateo 3 miles W of Stanford University Comment
  CAS-BOT-BC344961  Malus pumila Peter Rubtzoff 1975-10-24 8432 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH2966  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5560600  Malva parviflora H. S. Gentry 1931-1 87 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. 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
  SEINET5729437 Image available Marah fabacea R. E. Dengler 1960-1 31 San Mateo Sausal Creek, Wyndham Drive, Portola Valley.; Portola Valley 128 Comment
  SJSU15423  Matricaria chamomilla Toni Corelli 2011-8-25 706 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 28 Comment
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC422678  Meconella californica A. D. E. Elmer 1903-4-1 4499 San Mateo San Mateo toward Crystal Springs Comment
  UCR121590  Medicago lupulina George K. Helmkamp, E. A. Helmkamp 1999-6-28 4976 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2172  Medicago polymorpha John Hunter Thomas 1988-4-7 24377 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2161  Medicago polymorpha John H. Thomas 1963-6-23 10174 & 10175 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  SD99483  Medicago polymorpha Ira L. Wiggins 1975-4-12 22139 San Mateo Northeast side of Southern Pacific right-of-way, between San Francisquito Creek and Ravenswood Avenue, Menlo Park. Comment
  CAS-BOT-BC269470  Melica californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  JROH5299  Melica californica W. H. Lennihan 1990-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right side of trail leading from serpentine hill to oak woodlands. Comment
  CAS-BOT-BC281408  Melica imperfecta Walter & Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mt. Colma Canyon Comment
  JROH5311  Melica subulata John Rawlings 2005-5-15 1005 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 2 from 100 to 250 yards west of the zoology cabin site 82 Comment
  CAS-BOT-BC264252  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo By road up Kings Mt., Santa Cruz Mountain Peninsula Comment
  JROH5313  Melica torreyana John H. Thomas 1964-4-12 10310 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  UCD88813  Melica torreyana A. A. Beetle 1942-6-11 3600 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH5933  Melilotus indicus M. Ray 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  JROH2797  Melissa officinalis John H. Thomas 1962-7-15 9919 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA0018571  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
  JROH2823  Mentha pulegium Carol Zabel 1989-8-11 25 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, upstream from low-flow crossing on Road C Comment
  SJSU43  Mentha pulegium C. D. Duncan 1925-10-11 San Mateo Mud Lakes, summit of Coal Mine Ridge (above Corte Madera Cr) Santa Cruz Mts. Comment
  CDA4875  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  POM177324  Mercurialis annua L. R. Abrams, I. L. Wiggins, D. Abrams 1930-11-13 I 80 San Mateo Artichoke field 3 mi. S. of Rockaway Beach (Pedro Valley). Comment
  RSA34831  Mercurialis annua I. L. Wiggins 1945-9-22 11195 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  UCD96998  Mesembryanthemum nodiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo E of Redwood City. Comment
  CAS-BOT-BC428899  Micranthes californica Ira L. Wiggins 1929-3-23 3369 San Mateo Road to Mud Lake, near Stanford University. Comment
  CAS-BOT-BC428900  Micranthes californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. Bank by Redwood Stage road to Woodside Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC004608  Microseris Randall Morgan 1994-4-13 2182 San Mateo Edgewood Park/Canada Road Comment
  CAS-BOT-BC349019  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349020  Microseris douglasii subsp. douglasii LeRoy Abrams 1902-5-4 2421 San Mateo Woodside Comment
  JEPS36153  Microseris douglasii subsp. douglasii J. Burtt Davy 1893-6-17 797 San Mateo Belmont Comment
  JROH1148  Microseris douglasii subsp. douglasii John Hunter Thomas 1987-5-5 24249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  JROH5590  Microseris douglasii subsp. tenella John Rawlings 2013-4-23 1185 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F 50 meters east of Trail 15. 170 Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC7487  Microseris leucocarpha Charles Fuller Baker 1902-5-4 808 San Mateo Woodside Comment
  JROH4075  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1978-4-20 19095 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC162414  Mimulus grandis A. A. Heller 1906-6-8 8376 San Mateo near Ocean View; San Francisco Comment
  JEPS85195  Mimulus guttatus Roy E. Buck, Randall A. Morgan 1984-6-17 506 San Mateo ca. 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, s of Edgewood Park trail underpass); San Francisco Watershed Reserve 158 Comment
  RSA788375  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains: 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  SEINET8374162  Mimulus guttatus A. D. E. Elmer 1903-1 4857 San Mateo Crystal Springs Lake. Comment
  UCD122861  Mimulus primuloides Clyde Elmore 1967-9-14 s.n. San Mateo The Sequoias (Lutheran retirement community), off Portola Road, Woodside. Comment
  CAS-BOT-BC7363  Monardella franciscana Adolph Daniel Edward Elmer 1903-7-1 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214069  Monardella villosa C. F. Baker 1903-6-30 3353 San Mateo Crystal Springs Comment
  CAS-BOT-BC220663  Monardella villosa Ned Cahill 1974-4-30 236 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM19726  Monardella villosa C. F. Baker 1903-6-30 3353 San Mateo Crystal Springs. Comment
  CAS-BOT-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  SEINET10582384  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 5 San Mateo 0.4 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JEPS127870  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 154 San Mateo Crystal Springs Reservoir Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327791  Monolopia gracilens Donald A. Johansen 1932-5-21 683 San Mateo East of La Honda, Santa Cruz Mountains. Comment
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC13848  Muilla maritima Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC508587  Muilla maritima Lewis S. Rose 1965-3-25 s.n. San Mateo Gradalupe Road, San Bruno Mountain Comment
  CDA5599  Myosotis discolor Wm. Davis 1959-5-15 2398 San Mateo Woodlawn Cemetery, Colma. 0 Comment
  CDA28803  Myosotis latifolia D. G. Kelch 2009-6-9 9 .403 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  RSA176826  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  JROH2697  Myriophyllum aquaticum John Hunter Thomas 1987-5-26 24321 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  RSA176407  Myriophyllum aquaticum John H. Thomas 1964-10-2 10508 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  CAS-BOT-BC260023  Nassella lepida John Thomas Howell 1952-5-28 28316 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  RSA185012  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  UCD37962  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  JROH3201  Navarretia heterodoxa John H. Thomas 1969-6-4 15113 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  JROH2750  Nemophila John Hunter Thomas 1982-4-30 20881 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38536  Nemophila menziesii Janet Turner 1933-4-19 3728 San Mateo Above Emerald Lake Comment
  UC1301146  Nemophila menziesii Helen K. Sharsmith 1963-2-16 5132 a San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  CAS-BOT-BC219475  Nemophila parviflora John Thomas Howell 1971-4-12 47600 San Mateo Butano State Park, Santa Cruz Mts. Comment
  JROH2456  Notholithocarpus densiflorus var. densiflorus Toni Corelli 2011-10-4 373 San Mateo Jasper Ridge Biological Preserve, Stanford University; across from Douglas' iris site, west of Trail 20 87 Comment
  CAS-BOT-BC140424  Oemleria cerasiformis Elmer I. Applegate 1895-3-9 152 San Mateo Woodside Comment
  CAS-BOT-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140447  Oemleria cerasiformis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  JROH3711  Oemleria cerasiformis John Hunter Thomas 1981-2-14 20220 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3713  Oemleria cerasiformis John Hunter Thomas 1982-2-19 20801 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Goya Gate Comment
  UC12459  Oemleria cerasiformis J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Creek Comment
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
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Apr 10 2013
  POM275613  Oemleria cerasiformis Lyman D. Benson 1929-3-5 978 San Mateo Road from Searsville Lake to King's Mountain. Comment
  RSA127724  Oenothera elata subsp. hookeri John H. Thomas 1959-7-8 8022 San Mateo About 1/2 mile S of Pescadero beach along the coast highway. Comment
  RSA303928  Oenothera elata subsp. hookeri Jim R. Shevock 1970-11-25 549 San Mateo Coastal Strand 8 Comment
  JROH2990  Olea europaea John H. Thomas 1967-6-1 12981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5548756  Onagraceae H. S. Gentry 1931-1 85 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET200711  Orobanche californica subsp. californica L. M. Newlon 1919-9-7 68 San Mateo Pillar Point northern end of 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
  UC124996  Orobanche californica subsp. californica W. A. Setchell 1908-11-1 San Mateo Farallone City. Comment
  SEINET8466936 Image available Orobanche grayana Tom Hensel 1973-7-10 267 San Mateo Pigeon Point Lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line Comment
  CAS-BOT-BC502964  Orobanche vallicola Frank Tose 1927-10-1 s.n. San Mateo On the road to San Mateo Comment
  CAS-BOT-BC166766  Orthocarpus erianthus var. roseus Peter Rubtzoff 1979-4-7 9276 San Mateo San Bruno Mountains. South of the junction of Whittier Street with Frankfort Street, between it and Crocker Avenue. Comment
  POM15373  Orthocarpus erianthus var. roseus A. D. E. Elmer 1903-05 4670 San Mateo South San Francisco. Comment
  RSA14128  Orthocarpus lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo Near Searsville. Comment
  JROH298  Osmorhiza berteroi John Hunter Thomas 1986-5-1 23998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0089401  Oxalis articulata subsp. rubra Dean Wm. Taylor 2016-2-23 21612 San Mateo Moss Beach; western shoulder bank of Highway 1 on the western ROW edge as it parallels Vallenman Street. 18 Comment
  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
  UC311197  Oxalis oregana A. D. E. Elmer March, 1903 4532 San Mateo Portola Comment
  UCD110979  Oxalis oregana Janet Jacob 1951-4-1 60 San Mateo 7 miles east of Pescadero. Comment
  POM353456  Oxalis oregana Paul C. Silva 1948-1-31 2630 San Mateo Old La Honda Grade, 1/2 mile south of Skyline Blvd 488 Comment
  CAS-BOT-BC318250  Packera breweri Otto Holm 1930-5-8 s.n. San Mateo Berenda Farm, near Redwood City. Comment
  CAS-BOT-BC253971  Parapholis incurva J. H. Thomas 1962-5-12 9859 San Mateo Franklin Point Comment
  JEPS71261  Parapholis incurva A. L. Hormay 1932-5-29 San Mateo San Bruno; San Francisco Bay Shore 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
  JROH5344  Paspalum distichum L. R. Abrams 1914-7-1 5117 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH5351  Paspalum distichum John Rawlings 2011-9-4 1094 San Mateo Jasper Ridge Biological Preserve, Stanford University. At base of dam at trail terminus. 88 Comment
  POM207798  Paspalum distichum C. F. Baker 1902-10-20 1836 San Mateo Searsville Comment
  JEPS10360  Pedicularis densiflora W. L. Jepson 1922-3-19 9544 San Mateo Buri-Buri Ridge Comment
  JROH4098  Pedicularis densiflora Robert Robertson 1954-4-23 102 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4114  Pedicularis densiflora John H. Thomas 1976-4-2 18080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22074  Pedicularis densiflora L. S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake. 152 Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  SEINET12270442  Pedicularis densiflora J. H. Thomas 1959-1 7663 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto 152 Comment
  CAS-BOT-BC266665  Pedicularis dudleyi J. H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  SBBG33318  Pedicularis dudleyi A. D. E. Elmer -Jun-1903 4289 San Mateo Pescadero Crk (Iverson's); ISOTYPE Comment
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Oct 5 2011
  RSA0006087  Pedicularis dudleyi A. D. E. Elmer 1903-06 4289 San Mateo Iverson's Place, Pescadero Creek. Comment
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Jun 13 2020
  SEINET12182596  Pelargonium L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 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
  CAS-BOT-BC69252  Pellaea andromedifolia Margaret Barry 1937-5-1 39 San Mateo Coal Mine Ridge Comment
  UC1063604  Pellaea andromedifolia R. C. Wilson 1935-8-2 244 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  JROH5702  Pellaea mucronata var. mucronata John Rawlings 2015-3-3 1312 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rocky outcrop south side of low divide north of Trail 9. 114 Comment
  JROH1159  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the north of the top of the ridge Comment
  CAS-BOT-BC330478  Pentachaeta alsinoides Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. Wheeler's 3-aces, above Harold Road, Brisbane 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
  UC812463  Pentagramma triangularis subsp. triangularis Lewis S. Rose 1938-2-23 38082 San Mateo Woodside 152 Comment
  UCD99467  Persicaria lapathifolia Verne Grant; Herbert L. Mason 1946-8-28 13089 San Mateo Santa Cruz - Daly City Road #5, south of San Francisco. Comment
  CAS-BOT-BC419155  Persicaria maculosa Ira L. Wiggins 1980-8-29 22262 San Mateo Bed of San Francisquito Creek ca 75 m upstream from Pope Street bridge Comment
  CAS-BOT-BC419392  Persicaria punctata Paul Reeberg 1991-8-10 s.n. San Mateo San Bruno Mountains Comment
  JROH3282  Persicaria punctata Roxana S. Ferris 1924-10-6 4093 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in Portola Highway. Comment
  CAS-BOT-BC330311  Petasites frigidus var. palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  RSA15277  Petasites palmatus C. B. Wolf 1927-4-3 243 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA427691B  Phacelia californica Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  RSA10261  Phacelia distans H. A. Barker 1927-5-14 655 San Mateo North of Half Moon Bay. Comment
  UC881086  Phacelia divaricata Lewis S. Rose 1937-4-24 37231 San Mateo w Redwood City; Emerald Lake 106 Comment
  SEINET3158196  Phacelia nemoralis L. S. Rose 1939-6-16 39281 San Mateo Skyline Blvd., above Woodside 564 Comment
  POM87704  Phacelia nemoralis subsp. nemoralis L. R. Abrams 1901-5-5 1575 San Mateo Bear Gulch, Santa Cruz Mountains. Comment
  JROH2761  Phacelia nemoralis var. nemoralis John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15764  Phacelia ramosissima Toni Corelli 2010-5-17 630 San Mateo Pescadero State Beach and Marsh Natural Preserve, west side of Hwy. 1, along trail in dunes south of north parking lot 10 Comment
  JROH2763  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2281  Phalaris aquatica T. C. Fuller 1967-6-13 15947 San Mateo Road to San Mateo, 0.7 miles east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  JROH5353  Phalaris aquatica John H. Thomas 1973-6-15 16839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5371  Phalaris aquatica John Hunter Thomas 1985-5-21 23660 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat house. Comment
  JROH5373  Phalaris aquatica John Hunter Thomas 1987-5-26 24324 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD88021  Phalaris aquatica Alison Blake 2003-4-16 8 San Mateo Woodside. Filoli Center. S edge of Lower Parking Lot, along fenceline between Parking Lot and Heritage Orchard. Comment
  CAS-BOT-BC258998  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo 5 miles west Belmont, Ralston Ave and Skyline Blvd. Comment
  CAS-BOT-BC259004  Phalaris californica Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC259012  Phalaris californica Ned Cahill 1974-5-18 296 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS101195  Phalaris californica Dean W. Taylor 1987-8-20 9313 San Mateo Cascade Ranch State Park, between Whitehorse Creek and Cascade Creek, at crest of north facing hil 188 Comment
  CAS-BOT-BC259008  Phalaris californica George Oberlander 1949-4-2 27 San Mateo San Francisco Watershed Reserve. North Cahill Comment
  CAS-BOT-BC250644  Phalaris minor J. H. Thomas 1954-4-3 3828 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio 60 Comment
  CAS-BOT-BC250697  Phalaris paradoxa L. R. Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  JROH4291  Phoradendron serotinum subsp. tomentosum John H. Thomas 1965-12-19 11460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC452001  Phyllospadix scouleri Robert Setzer 1969-7-3 3311 San Mateo Montara Beach Comment
  JROH4174  Physalis philadelphica Toni Corelli 2011-7-12 370 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road B 77 Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  JROH3720  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  JROH3722  Physocarpus capitatus D. E. Breedlove 1971-5-31 19375 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM222904  Physocarpus capitatus J. P. Rose 1909-4-17 s.n. San Mateo Los Trancos Creek. 61 Comment
  RSA681424  Physocarpus capitatus Annuschka Deb 1989-6-13 218 San Mateo Woodside, Yerba Buena Nursery Demonstration Garden. Comment
  SD37696  Physocarpus capitatus Janet Turner 1933-5-15 3667 San Mateo Alpine Creek Rd. Comment
  UC1206475  Physocarpus capitatus Le Roy Abrams 1902-5-4 2397 San Mateo foothills near Redwood 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
  HSC23884  Pickeringia montana Mary Katherine Wicksten 1971-6-15 18 San Mateo Huddart Park near horse ring Comment
  CAS-BOT-BC206939  Pickeringia montana var. montana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and King's Mtn. - Santa Cruz Peninsula Comment
  JROH2199  Pickeringia montana var. montana John H. Thomas 1973-5-5 16765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA472045  Picris echioides E. A. Purer 1933-8-13 5417 San Mateo Belmont Comment
  CDA34055  Pinus attenuata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .155-B San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH122  Pinus radiata John Hunter Thomas 1987-4-23 24207 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC137319  Piperia elegans Phillip C. Wheeler 1965-5-12 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137320  Piperia elegans Phillip Wheeler 1965-8-16 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UCSC008349  Piperia elegans subsp. elegans Randall Morgan 1991-7-27 1996 -P San Mateo Pacifica, Rockaway Beach Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  JROH676  Pistacia atlantica Toni Corelli 2002-8-12 247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road H 128 Comment
  CAS-BOT-BC228141  Plagiobothrys chorisianus Alice Eastwood 1915-6-13 4717 San Mateo Granada Comment
  RSA128819  Plagiobothrys chorisianus L. R. Abrams 1909-4-27 s.n. San Mateo Santa Cruz Mountain peninsula, near Crystal Springs Lake Comment
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Dec 2 2007
  UC1063805  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  UC586830  Plagiobothrys chorisianus David Keck 1938-5-30 4728 San Mateo Pescadero Comment
  CAS-BOT-BC228116  Plagiobothrys chorisianus Daniel Cohen 1953-5-9 77 San Mateo Top of sea cliff at Pescadero Comment
  CAS-BOT-BC228125  Plagiobothrys chorisianus George Oberlander 1950-4-23 804 San Mateo San Francisco Watershed Reserve. Fire trail, to of Sweeney Ridge Comment
  CAS-BOT-BC228131  Plagiobothrys chorisianus Walter & Irja Knight 1965-5-9 1100 San Mateo San Bruno Mountains. Devil's Arroyo 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
  CAS-BOT-BC228155  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Between King's Mountain and La Honda, below Hayman's Ranch Comment
  JROH1411  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1971-4-3 15748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084415  Plagiobothrys nothofulvus G. Thomas Robbins 1937-4-11 102 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  JROH1435  Plagiobothrys tenellus P. R. Hickborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC24581  Plagiobothrys undulatus J. Burtt Davy Jun 21-23 1893 1136 San Mateo Pilarcitos Lake; Pilarcitos Canyon Comment
  JEPS127787  Plantago erecta Adam C. Schneider with C. Matt Guilliams 2013-4-7 58 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3120  Plantago erecta John Hunter Thomas 1982-4-28 20871 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI58721  Plantago erecta Lewis S. Rose 1966-5-2 66033 San Mateo Emerald lake, W of Redwood City 91 Comment
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 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
  POM61248  Plantago lanceolata Copeland 1903-6-5 3325 San Mateo Montara Point. Comment
  RSA187543  Plantago maritima John H. Thomas 1954-6-11 4281 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  SEINET12284426  Plantago maritima Unknown 1933-1 10441 San Mateo near Pigeon Point Comment
  JEPS22008  Plantago maritima var. californica G. Thomas Robbins 1958-6-9 3872 San Mateo about 0.5 mi s Pescadero Point (above the beach at Pebble Beach); Pebble Beach Comment
  CAS-BOT-BC92010  Platystemon californicus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine north of Seal Cove. Comment
  LA206262  Platystemon californicus David D. Keck; 1932-5-6 1473 San Mateo Burlingame, N city limits Comment
  UC890314  Plectritis brachystemon Alice Eastwood 1912-6-10 326 San Mateo Crystal Springs Comment
  JROH6205  Plectritis congesta subsp. brachystemon John Rawlings 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; between south base of utility pole mound and San Francisquito Creek riparian corridor. 89 Comment
  CAS-BOT-BC255565  Poa annua Ira L. Wiggins 1928-4-22 2944 San Mateo Moss Beach Comment
  JROH5396  Poa annua John H. Thomas 1965-2-22 10551 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5618  Poa bulbosa subsp. vivipara John Rawlings 2014-5-3 1219 San Mateo Jasper Ridge Biological Preserve, Stanford University. At downhill side of trail 14 about midway between dam and road C, near the lone Amelanchier utahensis. 98 Comment
  SJSU7645  Poa kelloggii T. J. Sammis 1974-5-16 San Mateo redwood forest between Pescadero Road & Pescadero Creek c. 1 mi W of Loma Mar Comment
  SEINET10602237  Poa nevadensis Edwin B. Copel 1903-4-20 Copeland 1920 San Mateo San Andreas Lake, Ca. Tufts about hill tops. Comment
  RSA785876  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo 'Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5414  Poa pratensis subsp. pratensis Herbert Dengler 1957-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassland N.E. of serp. ca. 100 yds. Comment
  POM87691  Poa secunda Le Roy Abrams 1902-5-4 2408 San Mateo Woodside. Comment
  UCD90414  Poa secunda August L. Hormay 1932-5-29 s.n. San Mateo San Bruno to San Francisco Bay shore highway. Comment
  JROH5425  Poa secunda subsp. secunda John Hunter Thomas 1967-6-1 12958 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky north slope, Searsville Ridge Comment
  CAS-BOT-BC244244  Poa unilateralis A. D. E. Elmer 1900-4-1 2393 San Mateo Spanishtown Comment
  SJSU15435  Poa unilateralis subsp. unilateralis Toni Corelli 2010-5-14 673 San Mateo Southern end of Pillar Point Bluff, San Mateo County. 32 Comment
  CAS-BOT-BC232874  Polemonium carneum Mrs. E. C. Sutliffe 1921-4-3 s.n. San Mateo Lake Pilarcitos Comment
  UC107058  Polemonium carneum Mrs. Frances Howland 1901-3-30 San Mateo Lake Pelarcitos Comment
  UCD23456  Polycarpon tetraphyllum E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  JROH5557  Polycarpon tetraphyllum var. tetraphyllum John Rawlings 2013-5-2 1166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E 100 m uphill from Big Inlet; in the road southwards. 130 Comment
  JROH5584  Polygala californica John Rawlings 2013-5-28 1190 San Mateo Jasper Ridge Biological Preserve, Stanford University; in the vicinity of an abandoned camper shell near a small drainage on north side of main ridge 100 Comment
  POM165063  Polygonum amphibium var. stipulaceum A. D. E. Elmer 1903-07 4650 San Mateo San Pedro. Comment
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC109242  Polygonum paronychia Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 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
  RSA431144  Polypodium Lyman Benson 1929-3-5 972 San Mateo King s Mountain Comment
  CAS-BOT-BC76947  Polypodium californicum Ned Cahill 1974-5-13 249 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JROH83  Polypodium californicum John Hunter Thomas 1981-2-14 20229 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH79  Polypodium californicum John H. Thomas 1972-4-1 16045 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72062  Polypodium calirhiza Ira L. Wiggins 1939-11-5 s.n. San Mateo Corte Madera Creek about 1/2 mile below the Rolph Place Comment
  CAS-BOT-BC72111  Polypodium scouleri L. R. Abrams 1926-5-26 11217 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC233151  Polypogon interruptus M. Edith Lang 1922-5-25 s.n. San Mateo Emerald Lake back of Redwood City Comment
  JROH5430  Polypogon interruptus John H. Thomas 1962-7-15 9921 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  UC1100394  Polypogon interruptus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1611 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  CAS-BOT-BC237344  Polypogon monspeliensis Ned Cahill 1974-5-18 289 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237357  Polypogon monspeliensis David D. Keck 1934-7-7 2938 San Mateo S of the mouth of Tunitas Creek Comment
  JROH5443  Polypogon monspeliensis John H. Thomas 1973-6-15 16836 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM313142  Polypogon monspeliensis H. L. Mason, Verne Grant 1946-8-28 13094 San Mateo On highway 5, about 3 miles south of Daly City Road. Comment
  RSA101028  Polypogon monspeliensis G. Oberlander 1949-7-24 312 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC1100376  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1592 San Mateo marshes mouth of Pescadero Creek Comment
  UC1132915  Polypogon monspeliensis G. E. Sindel 1935-5-25 306 San Mateo Mouth of Pescadero Creek; Santa Cruz Quad., mouth of Pescadero Creek Comment
  HSC10835  Polypogon monspeliensis B. Francis 1964-5-5 47 San Mateo 5 miles N of San Francisco International Airport. Comment
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Jul 2 2009
  SEINET10593693  Polypogon monspeliensis Gordon H. True 1937-7-23 True 808 San Mateo North of Salada Beach. 30 Comment
  CAS-BOT-BC237585  Polypogon viridis Peter Rubtzoff; Walter & Irja Knight 1987-6-26 9793 San Mateo San Bruno Mountains, saddle area on N side of Guadalupe junction, near road in the area of the uppermost part of East Fork Colma Creek in the NW corner of Fog Forest Comment
  JROH46  Polystichum dudleyi Lawrence J. Winship 1974-11-2 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH47  Polystichum dudleyi Lawrence J. Winship 1974-11-16 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH54  Polystichum munitum Lawrence J. Winship 1974-11-2 8 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM23442  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo West side of King's Mountain 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
  UCD164339  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCSB18690  Populus trichocarpa Schulte, John 1963-4-9 San Mateo 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH3358  Portulaca oleracea John H. Thomas 1976-10-16 18404 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453746  Potamogeton natans Roxana S. Ferris 1920-9-3 2043 San Mateo Santa Cruz Mountain Peninsula. Upper Mud Lake, Coal Mine Ridge Comment
  POM259789  Potamogeton nodosus I. L. Wiggins, Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453832  Potamogeton nodosus V. F. Hesse 1961-8-24 3020 San Mateo About 4 miles south of Pescadero 60 Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC454005  Potamogeton pectinatus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Reservoir near Club House. Comment
  JROH5517  Potamogeton pusillus John Hunter Thomas 1981-7-12 20710 San Mateo Jasper Ridge Biological Preserve, Stanford University. In lake along the shore Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  UCR63022  Potentilla anserina Donald G. Nelson 1939-6-14 617 San Mateo East side of Skyline Blvd., a few miles south of Daly City. Large permanent pond 196 Comment
  JEPS44265  Potentilla hickmanii K. Brandegee 1905-6-20 San Mateo Moss Beach , Moss Beach (Halfmoon Bay) 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
  CAS-BOT-BC516358  Prosartes hookeri John H. Thomas 1961-5-7 9285 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC517390  Prosartes smithii W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano, Deer Park Comment
  RSA18295  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-21 422 San Mateo East slope of Kings Mt. Comment
  POM139632  Prunus A. D. E. Elmer 1903-07 4773 San Mateo Pilarcitos Stone Dam. Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC154497  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam 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
  UC12764  Prunus ilicifolia J. Burtt Davy 1893-6-23 832 San Mateo Pilarcitos Canyon Comment
  JROH3744  Prunus ilicifolia subsp. ilicifolia John H. Thomas 1969-5-28 15084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154651  Prunus subcordata William R. Dudley 1904-4-7 s.n. San Mateo Los Trancos Cr., above Allen place Comment
  CAS-BOT-BC156355  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-18 s.n. San Mateo Mouth of Colma Canyon, north facing slope Comment
  RSA681426  Prunus virginiana var. demissa Annuschka Deb, Lori Hubbart 1989-5-10 208 San Mateo Santa Cruz Mtns. Skyline Blvd S of Yerba Buena Nursery (YBN) Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357125  Pseudognaphalium luteoalbum Fred Hemphill 1973-5-6 766 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC577203  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  SD61039  Pseudognaphalium microcephalum Darley F. Howe 1964-8-13 3958 San Mateo Near ocan on Highway 1. Comment
  UC575670  Pseudognaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  SBBG32247  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo San Bruno Mtn, Colma Cyn 121 Comment
  UCSC007772  Pseudognaphalium stramineum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC85905  Pseudotsuga menziesii Josephine D. Randall 1906-3-9 275 San Mateo Santa Cruz Peninsula, King's Mt. Comment
  CAS-BOT-BC85906  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mountain Comment
  SEINET11737773  Pseudotsuga menziesii Unknown 1929-1 7286 San Mateo Kings Mountain Comment
  CAS-BOT-BC362032  Psilocarphus tenellus H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH1179  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1192  Psilocarphus tenellus John Hunter Thomas 1986-5-6 24006 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10067  Psilocarphus tenellus R. D. Hennessey 1964-4-25 57 San Mateo Pilarcitos Cr near outlet to ocean 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
  JEPS8435  Pterostegia drymarioides unknown 1925-5-28 11 San Mateo Salada Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  JROH3753  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  JROH2531  Quercus John H. Thomas 1974-4-4 17087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD47329  Quercus X subconvexa Lewis S. Rose 1964-9-5 64069 San Mateo (Q. durata Jepson X Q. garryana Dougl.). Emerald Lake, W. of Redwood City. 243 Comment
  CAS-BOT-BC61703  Quercus agrifolia W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  CAS-BOT-BC61704  Quercus agrifolia Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City - Whipple Road Comment
  HSC8087  Quercus agrifolia L. S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 122 Comment
  CAS-BOT-BC62307  Quercus chrysolepis Stkinson 1902-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula, King's Mt. Comment
  JROH2469  Quercus douglasii L. R. Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on old road to the McDonough Ranch Comment
  JROH2533  Quercus dumosa var. bullata Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1086  Quercus durata C. W. Sharsmith 1951-4-6 6638 San Mateo Woodside Hills, 3 mi E of Woodside 182 Comment
  JROH2493  Quercus durata var. durata John Hunter Thomas 1984-10-14 23484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  JROH2507  Quercus kelloggii John Hunter Thomas 1981-4-27 20501 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5942  Quercus kelloggii John Rawlings, Sara Timby 2017-3-3 1964 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 96 Comment
  CAS-BOT-BC62891  Quercus lobata W. R. Dudley 1894-11-2 s.n. San Mateo Woodside road Comment
  JROH2524  Quercus lobata John Hunter Thomas 1979-9-9 19733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101043  Quercus lobata G. Oberlander 1949-7-30 346 San Mateo Southern boundary, San Francisco Watershed Reserve. Comment
  UCD47142  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1372 San Mateo On hillside ca. 4 miles east of Pescadero, San Mateo County, California. 304 Comment
  CAS-BOT-BC134778  Quercus wislizeni John Thomas Howell 1964-10-8 40961 San Mateo Portola State Park Comment
  CAS-BOT-BC134789  Quercus wislizeni Josephine D. Randall 1907-4-27 s.n. San Mateo Santa Cruz Peninsula. Kings Mt. Road Comment
  HSC24046  Quercus wislizeni Mary Katherine Wicksten 1971-6-17 14 San Mateo Huddart Park, bank along Zwierlein Trail near parking lot Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek Comment
  CAS-BOT-BC362543  Rafinesquia californica Fred Hemphill 1973-5-6 782 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA181321  Rafinesquia californica John H. Thomas 1965-5-12 10645 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SD37325  Ranunculus californicus Janet Thomas 1933-4-18 27 San Mateo Emerald Lake Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  CAS-BOT-BC378531  Ranunculus californicus var. californicus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, grassy slope east of and below Nike station Comment
  CAS-BOT-BC378536  Ranunculus californicus var. californicus Daniel Cohen 1953-4-11 12 San Mateo grassy meadow on north shore of Searsville Lake Comment
  CAS-BOT-BC378546  Ranunculus californicus var. californicus Lyman Benson 1930-3-20 1953 San Mateo South San Francisco, San Francisco Bay, Comment
  CAS-BOT-BC378728  Ranunculus californicus var. cuneatus John H. Thomas 1955-3-5 4679 San Mateo coastal bluffs north of mouth of San Gregorio Creek 0000000000000000000000000 30 Comment
  JROH3492  Ranunculus hebecarpus John Hunter Thomas 1988-4-7 24382 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC481014  Ranunculus hebecarpus Franklin P. Nutting April, 1895 San Mateo Comment
  POM269869  Ranunculus lobbii James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Springs Lakes Comment
  UC204177  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer June, 1903 4665 San Mateo San Pedro Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  UCD115166  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  SEINET12209519  Rhamnus californica Unknown 1933-1 s.n. San Mateo On hillside between Skyline and Half Moon Bay Comment
  CAS-BOT-BC55892  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  JROH3554  Rhamnus crocea E. H. Richardson 1906-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA7859  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1473 San Mateo 1/2 way up Kings Mt Comment
  CAS-BOT-BC56670  Rhododendron occidentale Roxana S. Ferris 1920-5-2 2003 San Mateo near Bonny Doon 457 Comment
  CAS-BOT-BC437977  Ribes Alice Eastwood 1922-5-27 11324 San Mateo La Honda Comment
  JROH2634  Ribes aureum var. gracillimum Carol Zabel 1990-3-30 38 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at last bridge. Comment
  POM141970  Ribes californicum A. D. E. Elmer 1903-03 4683 San Mateo Portola Comment
  UC204126  Ribes californicum A. D. E. Elmer March 1903 4683 San Mateo Portola Comment
  CAS-BOT-BC93011  Ribes californicum var. californicum Adoph Holme 1929-4-1 s.n. San Mateo Berenda Farm near Redwood City. Comment
  CAS-BOT-BC93013  Ribes californicum var. californicum George Oberlander 1950-3-18 527 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC93014  Ribes californicum var. californicum K. Haj Jaryh 1929-5-6 533 San Mateo La Honda Grade. Comment
  JROH2650  Ribes californicum var. californicum Carol Zabel 1989-2-20 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 near intersection with Trail 10. Comment
  JROH2652  Ribes divaricatum var. pubiflorum D. E. Breedlove 1971-5-31 19355 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173467  Ribes malvaceum A. D. E. Elmer 1903-3-1 535 San Mateo Portola Comment
  CAS-BOT-BC173473  Ribes malvaceum A. D. E. Elmer 1903-3-1 4535 San Mateo Portola Comment
  POM141973  Ribes malvaceum A. D. E. Elmer 1903-03 4750 San Mateo Portola Comment
  SBBG33476  Ribes malvaceum A. D. E. Elmer -Mar-1903 4750 San Mateo Portola Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  JROH2661  Ribes malvaceum var. malvaceum J. H. Thomas 1959-1-17 7513 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH2663  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212838  Ribes menziesii W. R. Dudley 1893-4-1 s.n. San Mateo Near San Francisquito Creek above Searsville Resevoir Comment
  CAS-BOT-BC212814  Ribes menziesii William Russel Dudley 1894-4-1 s.n. San Mateo Above St. Dennis Church, Searsville Comment
  RSA0021753  Ribes menziesii var. leptosmum S. S. Berry 1909-2-27 s.n. San Mateo Roadside near Adalanta Villa. 46 Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  JROH2670  Ribes menziesii var. menziesii John Hunter Thomas 1981-4-5 20276 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  SEINET13942784 Image available Ribes sanguineum Lewis S. Rose 1955-1 55041 San Mateo Kings Mountain, alt 2000 ft 610 Comment
  CAS-BOT-BC144601  Ribes sanguineum var. glutinosum James McMurphy 1906-3-9 s.n. San Mateo Near King's Mountain House Comment
  CAS-BOT-BC144606  Ribes sanguineum var. glutinosum Elmer I. Applegate 1895-3-3 198 San Mateo San Gregorio Creek below La Honda Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144640  Ribes sanguineum var. glutinosum R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  UC858477  Ribes sanguineum var. glutinosum E. G. Dudley 1904-3-3 San Mateo Portola Road, bridge Santa Cruz Mountain Peninsula Comment
  RSA0019108  Ribes sanguineum var. glutinosum Paul C. Silva 1948-1-31 2620 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  RSA144510  Ricinus communis John H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S. of intersection of Skyline Blvd. and Millbrae Avenue. Comment
  CAS-BOT-BC363084  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  CAS-BOT-BC363088  Rigiopappus leptocladus Ned Cahill 1974-5-13 272 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA176748  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  SEINET3388620 Image available Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside 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
  JEPS97011  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  UCD78149  Romulea rosea var. australis Robert E. Preston 2008-4-2 2601 San Mateo W slope of Buri Buri Ridge, ca. 0.4 mi NW of golf course. 75 Comment
  JROH1578  Rorippa palustris subsp. palustris James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1581  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18808 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta in Searsville Lake Comment
  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-BC147630  Rosa californica Walter Knight; Irja Knight 1964-9-2 746 San Mateo Overlooking San Francisco Bay, Point San Bruno Comment
  UC725850  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  POM275418  Rosa gymnocarpa Lyman D. Benson 1931-5-10 2796 San Mateo Woodside. Santa Cruz Mtn Range. 427 Comment
  JROH3760  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3762  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1982-9-12 21158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC146799  Rosa multiflora Elizabeth McClintock; Paul Reeberg 1988-4-28 s.n. San Mateo Near Camp Silverspot Comment
  UCD92298  Rostraria cristata John Thomas Howell 1973-4-28 49145 San Mateo Burlingame. Comment
  SEINET5550871  Rubiaceae H. S. Gentry 1931-1 89 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152872  Rubus parviflorus W. S. Atkinson 1901-7-1 s.n. San Mateo Pescadero Cr., Santa Cruz Peninsula Comment
  JROH3771  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  JROH5747  Rubus parviflorus L. Nordby 1982-5-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek, close to redwood grove. Comment
  RSA152234  Rubus parviflorus var. velutinus I. L. Wiggins 1925-04 1658 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  CAS-BOT-BC156662  Rubus spectabilis V. F. Hesse 1959-4-16 2587 San Mateo Gazos Creek near coast 45 Comment
  CAS-BOT-BC156766  Rubus spectabilis Roxana Stinchfield 1916-3-10 265 San Mateo Half Moon Bay Comment
  UC12986  Rubus spectabilis J. Burtt Davy 1895-4-21 1061 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  RSA15290  Rubus ursinus Carl B. Wolf 1927-4-3 258 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  UC748878  Rubus ursinus Alice Eastwood, John Thomas Howell 1938-6-26 6055 San Mateo near Pescadero; near Pescadero Comment
  UCSB17156  Rubus ursinus Schulte, John 1963-4-14 San Mateo Jasper Ridge 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach 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
  RSA185747  Rumex acetosella John H. Thomas 1949-4-6 237 San Mateo 4 miles S of Daly city Comment
  CAS-BOT-BC433357  Rumex crispus Cherie Wetzel 1969-6-20 885 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC433541  Rumex fueginus Roxana S. Ferris 1917-10-19 729 San Mateo Margin of Crystal Springs Lake 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
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  CAS-BOT-BC433996  Rumex salicifolius W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. E. shore of N. pond, Crystal Springs Res. 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
  UC1191283  Rumex salicifolius var. transitorius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1582 San Mateo about 1 mi s Half Moon Bay Comment
  SEINET12155887  Rupertia physodes Unknown 1932-1 9168 San Mateo Los Francos Woods Comment
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Nov 1 2021
  UCD81851  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC279590  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  CDA43028  Rytidosperma caespitosum T. Hyland 2014-6-27 PDR# MVAP 06098549 San Mateo Ano Nuevo State Park, along entrance road. 0 Comment
  JROH1717  Sagina apetala John H. Thomas 1971-4-25 15779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD163747  Sagina decumbens subsp. occidentalis Peter Rubtzoff 1988-5-3 9916 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, near its crossing of the upper part of East Fork Colma Creek. Comment
  SEINET4174272  Salicornia virginica G. E. Sindel 1935-7-25 303 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  UC75005  Salix laevigata unknown 1907-3-18 338 San Mateo hills near Palo Alto Palo Alto Comment
  OBI9815  Salix lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 122 Comment
  UC492372  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  CAS-BOT-BC125370  Salix lasiandra var. lasiandra W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC107131  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  CAS-BOT-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
  OBI9820  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  CAS-BOT-BC108255  Salix lasiolepis var. bigelovii Peter H. Raven 1950-4-30 1981 San Mateo Along a stream in the Montara Mts. ca 1/2 mile N. of Montara 91 Comment
  CAS-BOT-BC166958  Salix lasiolepis var. bigelovii Peter Rubtzoff 1975-10-24 8433 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC124480  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1966-9-29 s.n. San Mateo Lower part of Colma Canyon Comment
  CAS-BOT-BC124490  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-2-23 2641 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CDA34015  Salix lucida subsp. lasiandra D. G. Kelch 2011-3-13 11 .052 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  SBBG32453  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake 121 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  POM167366  Salix scouleriana A. D. E. Elmer 1903-05 4864 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CAS-BOT-BC129071  Salix scouleriana W. R. Dudley 1896-4-17 s.n. San Mateo By trail from Haladay place to summit La Honda Rd. - Santa Cruz Peninsula Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC126488  Salix sitchensis Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Near junction of Colma Creek and April Brook Comment
  CAS-BOT-BC126494  Salix sitchensis L. S. Rose 1932-1-23 3217 San Mateo Arroyos, Moss Beach Comment
  CAS-BOT-BC126498  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126519  Salix sitchensis W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC126520  Salix sitchensis W. R. Dudley 1904-3-7 70 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  POM167784  Salix sitchensis C. F. Baker 1902-3-18 390 San Mateo King's Mountain Comment
  RSA681665  Salvia clevelandii Annuschka Deb 1989-7-19 313 San Mateo Yerba Buena Herbarium Stock Comment
  POM62858  Salvia columbariae Edward L. Greene 1902-4-6 s.n. San Mateo Crystal Springs Lake, San Mateo County. Comment
  JROH2870  Salvia columbariae D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge north slope Comment
  UC1176935  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon; San Bruno Mts. 121 Comment
  SEINET10581809  Salvia spathacea Lewis S. Rose 1965-4-22 Rose 65028 San Mateo San Bruno Mountain, Colma Canyon open slopes. 61 Comment
  SJSU11396  Salvia spathacea G. I. Tourtlotte 1968-5-19 San Mateo S side of Guadalupe Canyon, San Bruno Mt Comment
  UC25752  Salvia spathacea Ivar Tidestrom May 1894 San Mateo Comment
  CAS-BOT-BC246014  Sambucus nigra subsp. caerulea Fred Hemphill 1973-5-6 754 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC246027  Sambucus nigra subsp. caerulea A. D. E. Elmer 1903-7-1 4689 San Mateo Portola Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JEPS127893  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo 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
  IRVC28133  Sambucus racemosa var. racemosa G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6783 San Mateo Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1. Central CA coast 244 Comment
  RSA10396  Sanguisorba annua Carl B. Wolf 1927-6-15 2174 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC223318  Sanicula bipinnatifida Ned Cahill 1974-4-30 219 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA445295  Satureja douglasii H. F. Copeland 1929-7-4 1231 San Mateo La Honda Grade. Comment
  JROH351  Scandix pecten-veneris John H. Thomas 1973-3-12 16484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH355  Scandix pecten-veneris John Hunter Thomas 1981-4-30 20516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH357  Scandix pecten-veneris John Hunter Thomas 1981-5-25 20627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283130  Schedonorus arundinaceus John Thomas Howell 1955-5-25 30254 San Mateo Skyline Blvd. causeway, Crystal Springs Lake Comment
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  UC1853  Scirpus cernuus J. Burtt Davy 1893-6-17 San Mateo Belmont Belmont (meadow back of Salt Marsh) Comment
  UC652556  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  RSA132362  Scoliopus bigelovii John H. Thomas 1960-3-1 8539 San Mateo Dense redwood forest along Kings Mt. road about 0.5 mile below Skyline Blve. 610 Comment
  SEINET3888355  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain.; 0 610 Comment
  CAS-BOT-BC519018  Scoliopus bigelovii Alice Eastwood 1933-5-31 18842 San Mateo Butano Canon Comment
  SEINET12055153  Scoliopus bigelovii Unknown 1932-1 8918 San Mateo La Honda Road to Skyline Drive Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  CHSC1898  Scrophularia californica H. Summers 1929-5-10 San Mateo Moss Beach. Comment
  RSA46817  Scrophularia californica Doris K. Kildale 1929-6-19 8011 San Mateo 1.5 miles from La Honda. Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC59076  Sedum spathulifolium J. H. Thomas 1974-5-9 17333 San Mateo San Pedro Valley, Northern Part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC363394  Senecio aronicoides A. D. E. Elmer 1903-5-1 4508 San Mateo San Bruno Hills Comment
  JEPS27357  Senecio aronicoides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7617 a San Mateo just e KRON television tower (on lateral ridge below and se of end of paved ridge-top, on Guadalupe Valley side of summit of San Bruno Mountain); San Bruno Mountain 304 Comment
  JROH1215  Senecio aronicoides W. R. Dudley 1894-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  RSA0012766  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC363384  Senecio aronicoides W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. By upper road, San Mateo Ravine Comment
  SEINET5571345  Senecio aronicoides H. S. Gentry 1931-1 103 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC364636  Senecio vulgaris John H. Thomas 1956-12-23 6481 San Mateo At 198 Oak Court, Menlo Park Comment
  CAS-BOT-BC80289  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  NY64522  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Cañada de Raymundo, Santa Cruz Mountains 274.3 Comment
  NY64526  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo West side of King's Mountain 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
  UC405205  Sequoia sempervirens unknown 1874-1-1 San Mateo Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  POM193077  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo Santa Cruz Peninsula: Trail from Iverson s to Bull Spring Comment
  SEINET10612340  Sequoia sempervirens Charles F. Baker 1902-1-15 Baker 319 San Mateo West side King's Mountain. The redwood of the Coast Range. Plants of the Pacific Coast. Spermaphytes and Ferns. Distributed by C.F. Baker. Comment
  JROH5465  Setaria viridis John Rawlings 2011-7-28 1077 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin site. 71 Comment
  UC583163  Sidalcea diploscypha Lewis S. Rose 1936-5-28 36300 San Mateo w Redwood City (Emerald Lake); , w of Redwood City 91 Comment
  UCD116582  Sidalcea hickmanii subsp. viridis S. Seiki 1998-5-2 2 San Mateo city of Pacifica, Montara Mountain, approximately 2.3 miles from San Pedro Valley along Devil's Slide heading west. Specimen found along trail about 0.25 mile in from the entrance to the trail. Comment
  OBI48733  Sidalcea malviflora subsp. laciniata S. Bagley 1969-3-28 s.n. San Mateo Near the San Francisco Game Refuge 145 Comment
  UC1084384  Sidalcea malviflora subsp. malviflora G. Thomas Robbins 1937-4-11 90 San Mateo along road to Woodside (above San Mateo); , rd to Woodside Comment
  POM286437  Silene gallica Arthur L. Cohen 1935-4-21 633 San Mateo Jasper Ridge, [which is in San Mateo county], Stanford University [which is in Santa Clara county]. Santa Cruz mtn range, San Francisco Bay watershed. 152 Comment
  JROH1726  Silene laciniata subsp. californica Richard L. Garber 1971-7-13 91 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389196  Silene laciniata subsp. californica L. R. Abrams 1909-5-26 4237 San Mateo Santa Cruz Peninsula. Between Woodside and Crystal Springs Comment
  CAS-BOT-BC389200  Silene laciniata subsp. californica H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC175275  Silene verecunda Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC towers Comment
  CAS-BOT-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  CAS-BOT-BC364855  Silybum marianum W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  RSA133098  Sisyrinchium bellum Donald A. Johansen 1933-5-18 708 San Mateo Hills above Searsville Lake, Stanford University Campus Comment
  UC845034  Sisyrinchium bellum Alice Eastwood 1915-6-13 4716 San Mateo Granada Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  SEINET5571633  Sisyrinchium bellum H. S. Gentry 1931-1 6 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. 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
  UC1332474  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA202892  Solanum furcatum G. Ledyard Stebbins, E. F. Paddock 1940-9-7 101 San Mateo At Junction of three upper forks of San Pedro Creek, about 100 foot countour level and a mile from the seashore. Comment
  JROH4187  Solanum umbelliferum John H. Thomas 1967-5-12 12887 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC884945  Solanum umbelliferum Lewis S. Rose 1939-2-26 39016 San Mateo Emerald Lake 182 Comment
  CAS-BOT-BC389752  Solanum umbelliferum J. Nieri 1953-2-14 s.n. San Mateo 4 miles East Half Moon Bay Canyon Comment
  NY820584  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo San Bruno Mts. 244 Comment
  SEINET7262176 Image available Solanum umbelliferum L. R. Abrams 1914-4-2 5073 San Mateo San Mateo County Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  RSA507799  Solidago canadensis J. C. Semple, S. Heard 1986-8-23 8591 San Mateo Ca-1 ca. one km south of Pescadero State Beach. Comment
  UCR256295  Solidago canadensis subsp. elongata Peter Rubtzoff 1976-10-5 8909 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC365750  Solidago spathulata John H. Thomas 1961-8-27 9701 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  UC909336  Soliva sessilis Ira L. Wiggins 1950-5-20 12352 San Mateo above Pescadero Beach Comment
  JROH1242  Soliva sessilis John Hunter Thomas 1978-4-25 19147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1255  Sonchus asper subsp. asper John H. Thomas 1967-5-31 12927 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374699  Sonchus oleraceus John H. Thomas 1965-4-29 10602 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA14504  Sparganium erectum subsp. stoloniferum I. L. Wiggins 1935-8-24 8160 San Mateo Small creek about 1/2 mile south of Moss Beach. Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  CAS-BOT-BC236628  Spartina foliosa David D. Keck 1931-9-27 1270 San Mateo Dumbarton Bridge Comment
  RSA430754  Spartina foliosa Lyman Benson 1937-8-26 8493 San Mateo 3 mi south of San Mateo, San Francisco Bay watershed 0 Comment
  JROH5600  Spergula arvensis John Rawlings 2014-3-18 1209 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper trail 3. 187 Comment
  CAS-BOT-BC390010  Spergula arvensis Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH1748  Spergula arvensis John Hunter Thomas 1985-4-10 23512 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  UCD99161  Spergula arvensis W. A. Harvey 1948-6-28 1694 San Mateo 1 mile south of town of Half Moon Bay. Comment
  JROH1757  Spergularia John Hunter Thomas 1978-4-25 19156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390202  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1939-5-12 726 San Mateo San Pedro Point Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  CAS-BOT-BC390472  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CDA24145  Spergularia marina Buchanan 1960-4-28 San Mateo Harbor Blvd. & Freeway, Redwood City. 0 Comment
  CAS-BOT-BC390698  Spergularia rubra Robert Robertson 1954-5-1 117 San Mateo At Pescadero Beach 9 Comment
  RSA0097346  Spergularia rubra var. perennans Lyman Benson 1934-7-29 6113 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  RSA0004233  Sphaeralcea fasciculata var. elmeri A. D. E. Elmer 1903-05 4395 San Mateo Crystal Springs Lake. Comment
  RSA131516  Stachys L. R. Abrams 1909-4-27 s.n. San Mateo Near Pulpit Rock. Comment
  UC32568  Stachys ajugoides var. ajugoides W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  UC635184  Stachys ajugoides var. rigida Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA116741  Stachys bullata Josephine Randall 1907-6-8 187 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  UCLA71370  Stachys bullata Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  UCR121546  Stachys bullata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4962 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
  UCR122977  Stachys bullata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6771 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  POM283278  Stachys bullata Lyman Benson 1930-6-14 2160 San Mateo La Honda. 305 Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA131278  Stachys chamissonis Roxana S. Ferris 1921-5-29 2180 San Mateo Lagoon head of New Years Pt. Comment
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Feb 9 2022
  JROH2917  Stachys pycnantha John H. Thomas 1963-6-23 10162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI13463  Stachys pycnantha Lewis S. Rose 1965-8-27 65093 San Mateo Emerald Lake, W of Redwood City 183 Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  CAS-BOT-BC394065  Stellaria media Robert Martineau 1974-3-27 11 San Mateo Foothills of the eastern side of the Santa Cruz Mountains. Five miles south of center of Palo Alto; Foothill Park, Palo Alto 548 Comment
  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
  JROH1784  Stellaria media John Hunter Thomas 1981-4-5 20289 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH1790  Stellaria nitens John H. Thomas 1968-3-17 14196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1792  Stellaria nitens Toni Corelli 2006-3-22 309 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 5, lost serpentine trail 121 Comment
  JROH1275  Stephanomeria virgata Carol Zabel 1989-8-4 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, north side of road near intersection with Trail 14 Comment
  JROH5320  Stipa lepida Duncan M. Porter 1960-4-22 649 D San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  JROH5322  Stipa lepida John H. Thomas 1967-5-31 12944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR182946A  Stipa tenuissima L. Kuwahara 2006-6-1 PDR- 1359399 San Mateo east side of Skyline Blvd., 3/4 mile south of State Hwy 92 360 Comment
  POM296440  Stuckenia pectinata Lyman Benson 1932-6-29 3750 San Mateo Lake Searsville, Santa Cruz Mt. range, San Francisco Bay watershed. 152 Comment
  UC50119  Stylomecon heterophylla J. Burtt Davy 1895-4-20 1080 San Mateo San Mateo Creek Comment
  CAS-BOT-BC423012  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  JROH1684  Symphoricarpos albus var. laevigatus John Hunter Thomas 1981-7-12 20692 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat dock Comment
  CAS-BOT-BC237067  Symphoricarpos mollis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC237070  Symphoricarpos mollis Fred Hemphill 1973-4-22 702 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  HSC23934  Symphoricarpos mollis Mary Katherine Wicksten 1971-7-15 173 San Mateo Huddart Park, on Rd. to Family Campground. Comment
  CAS-BOT-BC99055  Symphyotrichum chilense Peter H. Raven 1957-9-1 11294 San Mateo 1.1. mi. s. of Pigeon Point Lighthouse Comment
  CAS-BOT-BC99056  Symphyotrichum chilense David D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  HSC5051  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  UC1119618  Symphyotrichum chilense A. Wright 1928-9-11 San Mateo s of Chinese Cemetary; San Mateo Quad. 548 Comment
  CAS-BOT-BC99093  Symphyotrichum chilense W. R. Dudley 1909-10-4 s.n. San Mateo Hill above Mussel Rock - Santa Cruz Peninsula Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  UC1536888  Symphyotrichum subspicatum G. H. True Jr. 1936-6-14 507 San Mateo in canyon s of Salada Beach 304 Comment
  UC1544807  Symphyotrichum subspicatum Almut G. Jones 1986-8-23 7251 San Mateo Near Half Moon Bay 50 Comment
  SD72386  Symphyotrichum subspicatum Darley F. Howe 1967-8-6 4369 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH5940  Taraxacum officinale John Rawlings 1917-2-22 1958 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Trail 20 85 Comment
  UC1537659  Taraxia ovata Gordon H. True Jr. 1937-3-31 612 San Mateo Salada Beach Road 60 Comment
  JROH374  Tauschia kelloggii John Hunter Thomas 1992-5-25 25347 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC763103  Tauschia kelloggii R. F. Hoover 1941-5-20 5109 San Mateo Redwood City hills Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  UCR122916  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2001-6-2 6786 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC447469  Tellima grandiflora Walter Knight; Irja Knight 1965-4-11 1064 San Mateo Colma Canyon in wet, shaded area. Comment
  CAS-BOT-BC438266  Tetragonia tetragonoides J. H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Pt. Light House. Comment
  SEINET11261330  Tetragonia tetragonoides Kaye H. Thorne, J. Chandler 1986-7-25 4915 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  JROH3506  Thalictrum fendleri var. polycarpum Daniel Cohen 1953-4-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing near roadside at edge of Searsville Lake Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC399841  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  SBBG68849  Thermopsis californica var. californica S. W. Hutchinson -Apr-1927 San Mateo Redwood City 2 Comment
  UC74947  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake Comment
  UC16389  Thermopsis macrophylla var. macrophylla Alice Eastwood April 1896 San Mateo road to Crystal Springs Comment
  CDA3888  Thlaspi arvense W. Davis 1967-4-24 San Mateo Southern Pacific Railroad, San Mateo. 0 Comment
  CAS-BOT-BC66656  Thysanocarpus curvipes J. H. Thomas 1954-5-7 4068 San Mateo Near Skyline Boulevard. About 2 miles southwest of Black Mountain. 655 Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66660  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1617  Thysanocarpus curvipes John Hunter Thomas 1989-4-8 24625 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66655  Thysanocarpus curvipes H. J. Dengler 1972-4-30 s.n. San Mateo Unspecified. Comment
  CAS-BOT-BC66680  Thysanocarpus curvipes Dr. A. Kellogg; W. G. W. Harford 1868-1-1 49 San Mateo Unspecified. Comment
  SD27906  Tiarella trifoliata var. unifoliata L. A. Waitzinger 1927-8-14 San Mateo Islam Camp, near La Honda, Santa Cruz Mts. Comment
  JROH402  Torilis nodosa John Hunter Thomas 1989-5-5 24656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81494  Torreya californica W. R. D. 1895-3-26 s.n. San Mateo La Honda Comment
  POM181976  Torreya californica Anonymous s.n. San Mateo Santa Cruz Mountains Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  RSA681673  Trichostema lanatum Deb Annuschka 1990-11-16 388 San Mateo Yerba Buena Herbarium. Comment
  JROH3395  Trientalis latifolia John Hunter Thomas 1981-5-5 20538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116717  Trientalis latifolia E. W. Rust 1907-4-13 s.n. San Mateo Los Traucos Creek. Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JEPS65852  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1895-4-20 1068 San Mateo Crystal Springs Lake Comment
  UC165515  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 836 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC157980  Trifolium amplectens Peter Rubtzoff 1976-3-28 8450 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio junction; in East Fork Colma Creek canyon area Comment
  SJSU660  Trifolium amplectens var. stenophyllum A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  POM88149  Trifolium barbigerum L. R. Abrams 1904-5-5 s.n. San Mateo Jasper Ridge near Stanford University. Comment
  UCSC003389  Trifolium barbigerum var. andrewsii Randall Morgan 2001-5-9 3733 San Mateo Bean Hollow State Beach, San Mateo County Comment
  HSC15206  Trifolium bifidum L. S. Rose 1966-5-2 66035 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH2249  Trifolium bifidum var. decipiens John H. Thomas 1955-5-6 5009 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD107907  Trifolium bifidum var. decipiens Lewis S. Rose 1966-5-2 66035 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UCR123140  Trifolium campestre George K. Helmkamp, E. A. Helmkamp 2001-6-2 6766 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  JEPS127789  Trifolium depauperatum var. truncatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 60 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  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
  JROH2295  Trifolium fucatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2303  Trifolium fucatum John Hunter Thomas 1986-4-9 23928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120972  Trifolium fucatum var. fucatum L. R. Abrams 1914-4-5 5086 San Mateo Menlo Park Comment
  RSA95543  Trifolium fucatum var. fucatum L. S. Rose 1953-4-5 53014 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  UCSC003519  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 1946 San Mateo On bluff at San Gregorio State Beach Comment
  UCSC006013  Trifolium fucatum var. fucatum Randall Morgan 1996-5-8 2933 San Mateo Seed from Pescadero State Beach Comment
  SJSU15217  Trifolium glomeratum Toni Corelli 2010-5-5 625 San Mateo Ano Nuevo State Park, Cascade Field 9 Comment
  SJSU659  Trifolium grayi J. E. Hagerty 1950-5-20 San Mateo Pescadero Comment
  JROH5566  Trifolium hirtum John Rawlings 2013-4-30 1197 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along east side of Road C south of the San Francisquito Creek bridge. 89 Comment
  UCSC006205  Trifolium macraei Randall Morgan 1996-5-18 2452 San Mateo Pacifica, Young plants transplanted from colony on Montara Mtn. Comment
  CDA27997  Trifolium microcephalum T. C. Fuller 1967-6-13 15940 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  UCD109276  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2368  Trifolium subterraneum John Hunter Thomas 1992-5-5 25216 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  JROH2380  Trifolium variegatum John H. Thomas 1968-4-19 14302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2382  Trifolium variegatum John H. Thomas 1973-4-14 16569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2394  Trifolium willdenovii John H. Thomas 1955-5-6 5008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2404  Trifolium willdenovii John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2416  Trifolium willdenovii John Hunter Thomas 1991-5-2 25022 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18877  Trifolium willdenovii C. F. Baker 1903-4-8 1925 San Mateo San Andreas Lake Comment
  POM226853  Trifolium willdenovii L. R. Abrams 1914-4-2 5075 San Mateo Menlo Heights. Comment
  UC764667  Trifolium wormskioldii R. F. Hoover 1939-4-21 4056 San Mateo 2 mi s Colma Comment
  RSA51346  Trifolium wormskioldii Peter H. Raven 1950-4-30 s.n. San Mateo Up a road about 1/2 mile N of Montara. 30 Comment
  JROH4725  Trillium chloropetalum John H. Thomas 1972-4-1 16047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  SD27763  Trillium chloropetalum Carl B. Wolf 1927-3-6 236 San Mateo About 2 miles back of Stanford University. 60 Comment
  CAS-BOT-BC521067  Trillium chloropetalum var. giganteum Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain: Trillium Gulch near Knife Rock Comment
  CAS-BOT-BC521070  Trillium chloropetalum var. giganteum C. F. Leithold 1894-2-24 s.n. San Mateo Santa Cruz Peninsula: Woodside Hills Comment
  CAS-BOT-BC521201  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula: by trail north of Tripps Store, Woodside Comment
  RSA378199  Trillium chloropetalum var. giganteum Carl B. Wolf 1927-2-17 200 San Mateo 2 miles back of Stanford University along San Francisquito Creek. 61 Comment
  SEINET12044498  Trillium chloropetalum var. giganteum W. R. Dudley 1900-1 s.n. San Mateo S side Montana Mts, Santa Cruz Peninsula Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133449  Trillium ovatum W. R. Dudley 1893-2-19 s.n. San Mateo On Alpine Road above La Honda Comment
  JROH1648  Triodanis biflora H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4130  Triphysaria eriantha subsp. eriantha W. R. Dudley 1896-3-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge east of Searsville Dam Comment
  UC27282  Triphysaria eriantha subsp. rosea W. L. Jepson 1891-4-4 San Mateo San Bruno Hills Comment
  HSC20846  Triphysaria eriantha subsp. rosea L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mtns., N end 122 Comment
  UCD123413  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 121 Comment
  CAS-BOT-BC238556  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  CAS-BOT-BC238561  Triphysaria floribunda L. S. Rose 1927-5-1 s.n. San Mateo San Mateo Comment
  UC1012338  Triphysaria floribunda F. W. Pennell and D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 mi w Burlingame 152 Comment
  UC138991  Triphysaria floribunda C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  JROH4132  Triphysaria pusilla John H. Thomas 1956-4-7 5608 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4141  Triphysaria pusilla John Hunter Thomas 1978-4-20 19092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  SJSU2308  Triphysaria versicolor subsp. versicolor C. W. Sharsmith 1950-4-16 6637 San Mateo near Pescadero Point near Pescadero Comment
  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
  SEINET12053133  Triteleia hyacinthina Unknown 1933-1 San Mateo Portala Rd Comment
  CAS-BOT-BC523098  Triteleia ixioides subsp. ixioides David D. Keck 1940-5-19 5047 San Mateo Santa Cruz Mountains, east flank, above Woodside and Searsville Lake on La Honda Road 300 Comment
  CAS-BOT-BC526104  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo 1/4 mile north of base of La Honda Grade on road to Woodside 121 Comment
  RSA6306  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont. Comment
  CAS-BOT-BC526361  Triteleia laxa Daniel Cohen 1953-6-1 103 San Mateo Los Trancos Comment
  SEINET12044747  Triteleia laxa G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC527392  Triteleia peduncularis Susan Sommers 1980-5-30 s.n. San Mateo Edgewood site, flat zone below hill with serpentine outcrops Comment
  JROH1626  Tropidocarpum gracile John H. Thomas 1977-4-18 18532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74057  Turritis glabra Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain near radio station. Comment
  UC1241809  Typha angustifolia Herbert L. Mason 1949-7-7 14031 San Mateo mouth of Pescadero Creek Comment
  SD232694  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City, at 333 Hickey Blvd. Comment
  JROH135  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
  RSA623612  Umbellularia californica C. B. Wolf 1928-2-11 1471 San Mateo East base of Kings Mountain Road.. . Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo Comment
  SEINET12102550  Umbellularia californica G. A. McCallum 1933-1 s.n. San Mateo near San Francisquita Creek Comment
  CAS-BOT-BC382766  Uropappus lindleyi John H. Thomas 1971-5-2 15842 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1298  Urospermum picroides Toni Corelli 2005-5-9 287 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along road F 154 Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  JROH4238  Urtica dioica subsp. holosericea John Hunter Thomas 1980-11-27 20182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS15041  Utricularia macrorhiza Roxana S. Ferris Oct. 1920 2103 San Mateo 2nd. mud lake Coalmine Ridge; Santa Cruz Mt. Peninsula, Coalmine Ridge 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
  UC634722  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  CAS-BOT-BC199470  Vaccinium parvifolium H. L. Mason 1921-1-1 s.n. San Mateo Pescadero Creek Comment
  UC306548  Vaccinium parvifolium A. D. E. Elmer May 1903 4924 San Mateo Butano Creek Comment
  JROH4256  Verbena bonariensis Carol Zabel 2006-8-21 63 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4276  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1618125  Veronica americana Donald G. Nelson 1940-7-7 697 San Mateo highway from Half Moon Bay to San Mateo (along Pilarcitos Creek); Pilarcitos Creek 76 Comment
  JROH4154  Veronica persica John Hunter Thomas 1983-4-20 21535 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UCD108698  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Near Lake Merced. Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JROH2429  Vicia benghalensis John Hunter Thomas 1978-5-23 19227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15772  Vicia benghalensis Toni Corelli 2010-6-1 635 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 24 Comment
  SD27838  Vicia cracca Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek, back of Stanford University, roadsides Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  RSA187266  Vicia sativa John H. Thomas 1960-6-25 8793 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  CAS-BOT-BC264051  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mountains, vicinity of South Peak 518 Comment
  UC1121562  Viola adunca A. E. Wieslander 1935-2-3 507 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC264035  Viola adunca W. R. Dudley 1894-3-24 s.n. San Mateo Field E of Pebbly Beach, Pescadero Comment
  CAS-BOT-BC536827  Viola glabella Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mountain Comment
  RSA130815  Viola ocellata M. N. paulson 1917-04 s.n. San Mateo Kings Mt Road. Comment
  SJSU7493  Viola pedunculata Lewis S. Rose 1968-3-26 68010 San Mateo S base San Bruno Mt, S San Francisco 30 Comment
  SEINET191584 Image available Viola pedunculata L. S. Rose 1941-3-20 41047 San Mateo Milbrae 122 Comment
  CAS-BOT-BC199821  Vulpia Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC182765  Vulpia bromoides Peter Rubtzoff 1978-5-18 9169 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC199856  Vulpia bromoides John H. Thomas 1963-5-20 10140 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC199861  Vulpia bromoides W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch Hill Comment
  POM296530  Vulpia bromoides Lyman Benson 1935-5-5 6540 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  RSA790283  Vulpia bromoides Peter Rubtzoff 1976-6-13 8635 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA135765  Vulpia microstachys var. pauciflora John H. Thomas 1957-4-16 6654 San Mateo Jasper Ridge, about 3.5 miles southwest of Stanford University. 152 Comment
  UC665801  Vulpia microstachys var. pauciflora Ira L. Wiggins 1941-4-17 9720 San Mateo near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  POM296601  Vulpia myuros Lyman Benson 1935-1-30 6241 San Mateo Menlo Park; S. F. Bay watershed. 30 Comment
  CAS-BOT-BC185767  Vulpia myuros subsp. megalura Fred Hemphill 1973-4-22 831 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC185773  Vulpia myuros subsp. megalura George Oberlander 1950-5-2 942 San Mateo San Andreas Lake Comment
  RSA195509  Vulpia octoflora John H. Thomas 1966-4-20 11561 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JEPS75356  Wahlenbergia gracilis Mary Ann Hewlett March 1976 San Mateo San Mateo San Bruno Mountain ((Glen Park Canyon?), canyon above Industrial Park, below highway about 100 ft down footpath and to the right); , San Bruno Mountain 152 Comment
  CAS-BOT-BC128726  Whipplea modesta W. R. Dudley 1893-5-27 s.n. San Mateo Near top of Kings Mt. - Santa Cruz Peninsula Comment
  CAS-BOT-BC128735  Whipplea modesta Ira L. Wiggins 1925-4-1 1666 San Mateo On Kings Moutnain road one mile above Woodside. Comment
  JROH2712  Whipplea modesta John H. Thomas 1961-5-5 9216 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  UC150740  Woodwardia fimbriata C. F. Baker 1902-3-18 330 San Mateo King's Mt. Comment
  CAS-BOT-BC389722  Woodwardia fimbriata M. K. Wicksten 1972-6-11 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC77912  Woodwardia fimbriata W. R. Dudley 1896-2-16 s.n. San Mateo Devil's Canyon, Black Mountain Comment
  SEINET11712887  Woodwardia fimbriata Unknown 1929-1 7288 San Mateo Kings Mt Comment
  JROH1306  Wyethia angustifolia John Hunter Thomas 1981-4-23 20491 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC81856  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson 1980-5-3 5134 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  JROH1314  Wyethia glabra John H. Thomas 1975-4-18 17784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA178658  Wyethia glabra John H. Thomas 1964-4-19 10312 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  SJSU8204  Xanthium strumarium A. I. Wilson 1967-10-12 60 San Mateo Canada Rd by S part Crystal Springs L Comment
  JROH411  Yabea microcarpa John H. Thomas 1958-5-10 7139 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH417  Yabea microcarpa John Hunter Thomas 1987-4-30 24218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA304269  Zantedeschia aethiopica James R. Shevock 1971-3-21 821 San Mateo Pepple Beach. 8 Comment
  SD52461  Zeltnera muehlenbergii Skip Stone 1952-6-25 110 San Mateo Redwood City 22 Comment
  CAS-BOT-BC531543  Zigadenus fremontii R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC532758  Zigadenus fremontii W. R. Dudley 1893-3-1 s.n. San Mateo Marsh, South San Francisco Comment
  HSC23892  Zigadenus fremontii Mary Katherine Wicksten 1971-7-2 148 San Mateo Huddart Park, Miwok Nature Trail by Miwok Shelter Comment
  POM291032  Zigadenus fremontii Arthur L. Cohen 1935-4-21 602 San Mateo Jasper ridge, Stanford University, Santa Cruz mountain range, San Francisco Bay watershed 152 Comment
  SEINET12056254  Zigadenus fremontii Unknown 1933-1 s.n. San Mateo La Honda Comment



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