Search Results — 2000 specimen records retrieved (1338 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41407  Abronia latifolia Edith A. Purer 1932-7-18 4012 San Mateo Half Moon Bay Comment
  RSA0025758  Abronia latifolia E. A. Purer 1933-7-27 5381 San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  CAS-BOT-BC233753  Abronia umbellata L. R. Abrams 1909-8-2 4276 San Mateo Pebble Beach Hotel, Pescadero, Santa Cruz Peninsula Comment
  UC1176934  Acaena pinnatifida var. californica Peter H. Raven 1950-4-16 1795 San Mateo summit ridge San Bruno Mts. 182 Comment
  CAS-BOT-BC451125  Acaena pinnatifida var. californica Ira L. Wiggins 1942-5-26 10096 San Mateo Near the ocean, 2 1/2 miles south of Pescadero on the Old Coast Road. Comment
  CAS-BOT-BC451130  Acaena pinnatifida var. californica Elizabeth McClintock; Carlyn Halde 1967-5-14 s.n. San Mateo East facing slope below parking lot; San Bruno Mountains 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
  CAS-BOT-BC333291  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  CAS-BOT-BC333294  Acer macrophyllum Josephine D. Randall 1906-3-1 1 San Mateo Santa Cruz Peninsula, San Francisquito Creek near Stanford Univ. Comment
  POM222809  Acer macrophyllum S. S. Berry 1909-3-31 s.n. San Mateo San Francisquito Creek. 61 Comment
  RSA152264  Acer negundo subsp. californicum I. L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroders, 1.5 miles above Stanford University Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CHSC25966  Achillea millefolium S. Villard 1974-4-28 6 San Mateo Found on King's Mt. Rd. at intersection with Jocellyn Lane in Woodside. 45 Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 154 Comment
  SJSU8173  Achillea millefolium R. J. Plant 1965-10-23 San Mateo San Gregorio Beach Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC21594  Achillea millefolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  CAS-BOT-BC28769  Achillea millefolium Saichi Kawahara 1968-6-15 425 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  UCD128300  Achillea millefolium Leslie Fenster 1964-3-22 15 San Mateo near Crystal Spring Lake. 152 Comment
  UCSB18197  Achillea millefolium Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  JROH460  Achyrachaena mollis John H. Thomas 1966-4-24 11583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH472  Achyrachaena mollis John Hunter Thomas 1983-4-21 21641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2058  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2109  Acmispon strigosus John H. Thomas 1961-4-29 9193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SEINET8216770  Adelinia grandis L. E. Detling 1933-3-20 1122 San Mateo Skyline Blvd, [State Highway 35]. Comment
  CAS-BOT-BC139952  Adenostoma fasciculatum Fred Hemphill 1973-4-22 744 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139953  Adenostoma fasciculatum Ned Cahill 1974-5-13 260 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC139999  Adenostoma fasciculatum Fred Hemphill 1973-5-14 842 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3580  Adenostoma fasciculatum var. fasciculatum John Gillespie 1927-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3584  Adenostoma fasciculatum var. fasciculatum Richard L. Garber 1971-7-13 40 San Mateo Jasper Ridge Biological Preserve, Stanford University 165 Comment
  POM263664  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  CAS-BOT-BC384616  Adiantum aleuticum J. Lovelle 1973-7-29 s.n. San Mateo Pescadero Creek Comment
  JROH85  Adiantum aleuticum Lawrence J. Winship 1974-11-16 15 San Mateo Jasper Ridge Biological Preserve, Stanford University. Among wet rocks below Searsville dam. Comment
  JROH87  Adiantum aleuticum John Hunter Thomas 1979-6-12 19591 San Mateo Jasper Ridge Biological Preserve, Stanford University. West side of dam, near bottom Comment
  UC1301057  Agoseris apargioides Helen K. Sharsmith 1963-2-16 5148 San Mateo Thornton Beach San Francisco Bay Region, Thornton Beach Comment
  CAS-BOT-BC23020  Agoseris grandiflora var. grandiflora Alice Eastwood 1915-6-13 4718 San Mateo Granada Comment
  CAS-BOT-BC23022  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC46126  Agoseris heterophylla Ned Cahill 1974-4-29 195 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC46170  Agoseris heterophylla Ned Cahill 1974-5-18 295 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH495  Agoseris heterophylla John Hunter Thomas 1988-6-2 24493 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH496  Agoseris heterophylla John Hunter Thomas 1989-5-9 24715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC46172  Agoseris heterophylla W. R. Dudley 1906-5-13 s.n. San Mateo S.W. of San Mateo Comment
  CAS-BOT-BC15237  Agoseris hirsuta George Oberlander 1950-6-3 1023 -A San Mateo near San Andreas Lake, San Francisco Watershed Reserve Comment
  UC29336  Agoseris hirsuta Michener and Bioletti 1892-5-1 San Mateo Comment
  SACT000119  Agrostis alba Malcolm Nobs, S. Smith 1949-8-25 San Mateo Marshes of Sharp Park Comment
  UCD37958  Agrostis densiflora Beecher Crampton 1962-6-11 6489 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. 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
  CAS-BOT-BC127381  Agrostis exarata Michener; Bioletti 1893-6-1 132 San Mateo South Pilarcitos. Comment
  JEPS129817  Agrostis exarata John Rawlings, Ken Hickman 2017-6-3 2095 B San Mateo Highway 92 west on ramp to Highway 280 north (Caltrans Right Way). Comment
  JROH5649  Agrostis exarata John Rawlings 2014-5-28 12461246 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry creek bed of San Francisquito Creek at the Dennis Martin site. 71 Comment
  RSA523957  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo Near Thornton Beach 259 Comment
  POM199091  Agrostis hallii A. D. E. Elmer 1903-06 4264 San Mateo Alpine School House. Comment
  JROH4792  Agrostis pallens John Rawlings 2010-6-23 1104 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along fenceline 150 yards downhill from Escobar Gate. 157 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
  JROH4823  Aira caryophyllea John H. Thomas 1958-5-10 7153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  RSA320915  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo Blue Blossom Hill, San Bruno Mts. 357 Comment
  UCR124189  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2001-6-2 6792 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
  CAS-BOT-BC138231  Aira caryophyllea var. caryophyllea Walter Knight; Irja Knight 1965-5-9 s.n. San Mateo San Bruno Mountain. Devil's Arroyo. Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. 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-BC138236  Aira caryophyllea var. caryophyllea Phillip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near Cow Palace. Comment
  CAS-BOT-BC445396  Alisma plantago-aquatica Margaret A. Barry 1937-6-27 174 San Mateo Mud Lakes on Coal Mine Ridge Comment
  JROH4300  Alisma triviale John Hunter Thomas 1981-7-12 20697 -2 San Mateo Jasper Ridge Biological Preserve, Stanford University; on lake bank Comment
  RSA128834  Alisma triviale Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mtns. Comment
  JROH4568  Allium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4539  Allium amplectens John H. Thomas 1968-5-3 14442 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge in grasslands. Serpentine. Comment
  CAS-BOT-BC447499  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Standford University Comment
  SEINET5629385 Image available Allium dichlamydeum Unknown 1907-1 8564 San Mateo Back of San Mateo on the Half Moon Bay Rd. Comment
  SEINET8534224 Image available Allium dichlamydeum A. A. Heller 1907-5-23 8564 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4558  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC474307  Allium unifolium R. S. Ferris 1921-5-29 2183 San Mateo New Years Pt. Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  UC188946  Alopecurus saccatus Michener Sept 1891 124 San Mateo San Bruno Rd. Comment
  JEPS23931  Amaranthus californicus L. R. Abrams 1902-9-2 2995 San Mateo Crystal Lake Comment
Read comments
Sep 5 2011
  RSA22216  Amaranthus powellii J. T. Howell 1938-5-1 13772 San Mateo Colma Canyon Comment
  CDA34348  Amaranthus retroflexus E. Finley 1990-10-25 s.n. San Mateo Redwood City, Jefferson St. at Lonesome Pine. 0 Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  UC579657  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo s of Pescadero; Santa Cruz Quadrangle, Bolsa Point 0 Comment
  CDA9963  Ambrosia chamissonis F. L. Blanc 1960-6-28 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  SEINET11855119  Ambrosia chamissonis E. H. Graham 1931-1 6941 San Mateo Ano Nuevo Pt. S of San Francisco Comment
  CAS-BOT-BC214048  Amsinckia Lewis S. Rose 1933-5-17 33174 A San Mateo Redwood City Comment
  CAS-BOT-BC222456  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo Road west of San Mateo City to Skyline Blvd., 1.7 miles below junction to Skyline opposite gravel pit, (Hillsborough) Comment
  JROH1353  Amsinckia menziesii John Hunter Thomas 1987-5-5 24241 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0089968  Amsinckia retrorsa Arthur L. Cohen 1935-4-21 622 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC389663  Anagallis arvensis Gail Metzger 1963-3-30 s.n. San Mateo Coyote Point Comment
  JEPS17915  Anaphalis margaritacea Rimo Bacigalupi 1955-8-4 5448 San Mateo at, just n of Montara Point Lighthouse Montara Comment
  UC118834  Anemone oregana C. F. Baker 1902-3-18 323 San Mateo King's Mtn Comment
  UC1400348  Angelica hendersonii Robert F. Thorne and P. Everett 1965-8-1 35077 San Mateo 21.5 mi s of Golden Gate Bridge 68 Comment
  CAS-BOT-BC273180  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. 230 Comment
  CAS-BOT-BC273190  Anisocarpus madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  HSC24049  Anisocarpus madioides Mary Katherine Wicksten 1971-6-16 36 San Mateo Bank at Huddart Park, by Werder Flat Comment
  JROH498  Anthemis cotula John H. Thomas 1963-6-23 10173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  JROH196  Anthriscus caucalis John H. Thomas 1973-4-14 16554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH195  Anthriscus caucalis Richard L. Garber 1971-5-11 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH198  Anthriscus caucalis John H. Thomas 1974-5-3 17242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454495  Aphanes occidentalis H. A. Dutton 1900-3-11 s.n. San Mateo Woodside serpentine, Santa Cruz Pennisula Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC451566  Aponogeton distachyos Peter Rubtzoff 1956-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC405894  Aquilegia formosa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge. Comment
  CAS-BOT-BC405896  Aquilegia formosa J. H. Thomas 1949-4-14 276 San Mateo King's Mountain Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176876  Aquilegia formosa var. truncata Josephine Randall 1908-4-12 s.n. San Mateo Kings Mt. Road Comment
  POM270621  Aquilegia formosa var. truncata H. L. Mason 1927-4-23 3674 San Mateo Summit of Road betw La Honda and Bloomquists mill Comment
  CAS-BOT-BC17319  Arabis blepharophylla Walter Knight; Irja Knight 1965-4-25 1071 San Mateo San Bruno Mountains. Owl's Canyon. Comment
  CAS-BOT-BC17333  Arabis blepharophylla John H. Thomas 1961-5-7 9314 San Mateo San Bruno Mountains in northern part of county. 396 Comment
  CAS-BOT-BC17336  Arabis blepharophylla Reed Clark Rollins 1942-4-30 3006 San Mateo Southeast slope of the San Bruno Hills about 1 mile west of Brisbane. Comment
  CAS-BOT-BC17340  Arabis blepharophylla Roxana S. Ferris 1920-3-8 1763 San Mateo Montara Mountains in vicinity of South Peak. 518 Comment
  UC1300996  Arabis blepharophylla Helen K. Sharsmith 1963-2-16 5137 San Mateo above Daly City (lower San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC17327  Arabis blepharophylla W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Top of hill, head of Baden Crek. Comment
  JEPS27360  Arctostaphylos Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7620 San Mateo lateral ridge below and se end of ridgetop road just east of KRON TV tower and station (on Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  CAS-BOT-BC24199  Arctostaphylos andersonii W. R. Dudley 1897-12-29 s.n. San Mateo On Butano, Pescadero Ridge. Comment
  UCD50393  Arctostaphylos andersonii Robert E. Preston 2001-6-11 1540 San Mateo Butano Ridge. 658 Comment
  SEINET11984878  Arctostaphylos andersonii R. Gankin, Jaacov, J. B. 1965-1 384 San Mateo CA 35 (Skyline Blvd), 1.1 mi N of junction with CA 84 Comment
  SEINET11987183  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3931 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  SEINET11989088  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1981-1 4493 San Mateo Kamchatka Point, San Bruno Mt 320 Comment
  LA26778  Arctostaphylos crustacea Lewis S. Rose; 1942-3-30 42007 San Mateo Kings Mountain 600.0 Comment
  SEINET5788098 Image available Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain, CA Comment
  SEINET11988252  Arctostaphylos crustacea Unknown 1959-1 322 San Mateo 2.8 mi from junction Ca 5 on King's Mountain Rd Comment
  JROH1932  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1936  Arctostaphylos crustacea subsp. crustacea Toni Corelli 2006-1-20 308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 134 Comment
  RSA681641  Arctostaphylos edmundsii Annuschka Deb 1989-1-27 17 -a San Mateo Woodside. Comment
Read comments
Dec 6 2014
  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-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-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  POM131959  Arctostaphylos manzanita subsp. manzanita Stewart H. Burnham 1894-1 6565 San Mateo Above Searsville. Comment
  CAS-BOT-BC40166  Arctostaphylos montaraensis John H. Thomas 1974-5-9 17329 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  RSA167727  Arctostaphylos montaraensis R. F. Thorne, Percy C. Everett 1963-6-9 32224 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
Read comments
Mar 14 2016
  UC486533  Arctostaphylos nummularia Mrs. H. P. Bracelin 1932-7-4 San Mateo e Pescadero; Butano Forest Comment
  CAS-BOT-BC39819  Arctostaphylos pacifica Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain - slope southeast of parking lot just below top of mountain. Comment
  RSA633497  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27572 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  RSA633498  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27568 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44708  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 831 San Mateo On Peak Mt. - Western sector 304 Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  CDA28982  Arctostaphylos regismontana D. G. Kelch 2009-6-9 9 .395 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
Read comments
Aug 22 2011
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  UC1120849  Arctostaphylos regismontana A. E. Wieslander 1939-7-16 896 San Mateo Kings Mt.-Sierra Moreno Santa Cruz Quadrangle Comment
  UC1543114  Arctostaphylos regismontana Donald G. Nelson 1938-11-13 592 San Mateo on Skyline Blvd n summit of Kings Mountain Comment
  CAS-BOT-BC44745  Arctostaphylos regismontana W. R. Dudley 1900-5-16 s.n. San Mateo On stage road from King's Mt. to Spanishstown Comment
  SEINET3410747 Image available Arctostaphylos sensitiva Lewis S. Rose 1931-4-4 s.n. San Mateo Kings Mountain, San Mateo County, California. Comment
  RSA380889  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. .4 mile northeast of Peak Mountain of Montara Mountain range. 488 Comment
  JEPS98865  Arctostaphylos tomentosa subsp. crustacea James B. Roof, Irja Knight 1964-9-14 San Mateo Montara Mountain, W summit Comment
  RSA636851  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley 1979-6-18 7313 San Mateo Jasper Ridge. Comment
Read comments
Sep 19 2011
  UC762308  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4769 San Mateo Kings Mountain 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
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 Comment
  UCD52151  Arctostaphylos uva-ursi Walter and Irja Knight; Robert and Janet Blomquist 1981-7-3 4426 San Mateo Kamchatka Point, San Bruno Mt., San Mateo County, California. Comment
  UCR58388  Arctostaphylos uva-ursi subsp. coactilis Walter Knight 1980-4-28 3735 San Mateo Original collected in 1963 by James Roof from Powerline Ridge, San Bruno Mt. (Tilden Botanic Garden, Berkeley) Comment
  SEINET11987153  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4055 San Mateo Tilden Botanic Garden, Berkeley, orig. about 200 yds E of summit parking lot of San Bruno Mt Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit Comment
  SEINET11989207  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4636 San Mateo Kamchatka Point, San Bruno Mountains Comment
  SEINET11989209  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4634 San Mateo windy Kamchatka Point, San Bruno Mountains Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  CAS-BOT-BC47697  Armeria maritima subsp. californica W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach, Pescadero Comment
  LA44122  Armeria maritima subsp. californica Ira L. Wiggins; 1929-7-4 3801 San Mateo Pescadero Beach Comment
  UC1123303  Armeria maritima subsp. californica W. W. Akey 1935-5-28 24 San Mateo 1 1/2 mi n Bolsa POint; Santa Cruz Quadrangle Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  SEINET11853520  Artemisia pycnocephala E. A. Purer 1933-1 5387 San Mateo 2 mi S of Pigeon Point Comment
  UC1100217  Arundo donax Malcolm A. Nobs, S. Galen Smith 1949-8-25 1574 San Mateo s of Rockaway Beach Comment
Read comments
Jun 5 2008
  UCD56052  Arundo donax Malcolm A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockway Beach. Comment
  JROH431  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH438  Asclepias fascicularis John Hunter Thomas 1992-6-8 25367 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  POM57741  Aster chilensis B. Greene 1901-10-20 59 San Mateo Summit of Coast Range Comment
  RSA107478  Aster radulinus L. S. Rose 1955-9-19 55174 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  UC136769  Astragalus douglasii var. douglasii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC186758  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo Back of Redwood City, High Road off Woodside Road Comment
  RSA90716  Astragalus nuttallii F. W. Peirson 1925-9-13 6424 San Mateo Rockaway Beach Comment
  CAS-BOT-BC177974  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-1 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC194430  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC177971  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  CAS-BOT-BC177972  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  CAS-BOT-BC177973  Astragalus nuttallii var. virgatus C. F. Leitholdt 1894-7-29 s.n. San Mateo Pescadero Hills - Santa Cruz Mountain Peninsula Comment
  JEPS15533  Astragalus pycnostachyus G. Thomas Robbins 1956-8-18 3737 San Mateo on slope above Pomponio Creek at its mouth at the Pacific Ocean; on slope above Pomponio Creek Comment
  SEINET10775830  Astragalus pycnostachyus Charles F. Baker 1902-10-1 Baker 1744 San Mateo Pillar Point. Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  CAS-BOT-BC193092  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC193094  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC193096  Astragalus pycnostachyus var. pycnostachyus W. R. Dudley 1894-4-21 s.n. San Mateo Field near Crystal Springs Reservoir Comment
  UC13465  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 San Mateo San Gregorio <?> Comment
  CAS-BOT-BC389701  Asyneuma prenanthoides Lorene Sigal 1969-7-1 s.n. San Mateo Butano Girl Scout Camp Comment
  CAS-BOT-BC167382  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  SD40199  Atriplex leucophylla Edith A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  JROH5936  Atriplex prostrata Ann Lambrecht 2007-9-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek, left bank below Bear Creek confluence Comment
  SEINET5727745 Image available Atriplex semibaccata Delzie Demaree 1932-1 10529 San Mateo Belmont; Belmont Comment
  CAS-BOT-BC146081  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of San Gregorio. Comment
  CAS-BOT-BC146082  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo Ca. 3 km. northeast of Pescadero. Comment
  JROH4839  Avena barbata John H. Thomas 1967-3-26 12420 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99505  Avena fatua Ira L. Wiggins 1975-4-17 22144 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  UCD56258  Avena fatua L. Angst 1917-3-18 11 a San Mateo San Mateo. Comment
  CAS-BOT-BC145734  Avena sativa Ned Cahill 1974-5-30 315 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC98694  Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge Comment
  RSA226539  Baccharis douglasii E. K. Balls 1969-9-18 12172 San Mateo 5 miles south of junction Highway 84 and Highway 35 along La Honda Road. Comment
  SEINET3386136 Image available Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge. Comment
  JROH536  Baccharis glutinosa John H. Thomas 1974-8-3 17497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH544  Baccharis glutinosa John Hunter Thomas 1988-10-17 24593 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  LA203045  Baccharis glutinosa D. Keck; 1931-9-27 1271 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC99505  Baccharis pilularis Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  CAS-BOT-BC99524  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo above Preston's, La Honda Road Comment
  CAS-BOT-BC99531  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  POM56595  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point. Comment
  RSA18342  Baccharis pilularis C. B. Wolf 1927-1-29 476 San Mateo Pebble Beach Comment
  SD30702  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  JROH547  Baccharis pilularis subsp. consanguinea John H. Thomas 1964-11-29 10547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH552  Baccharis pilularis subsp. consanguinea John H. Thomas 1978-9-24 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16620  Barbarea orthoceras Fred Hemphill 1973-4-8 621 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16622  Barbarea orthoceras Fred Hemphill 1973-3-1 703 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC166963  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7962 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1443  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR271407  Barbarea orthoceras John F. Emmel 2001-4-21 1697 San Mateo Central Coast, Montara Mountain, along utility line clearing in drainage between North Peak and South Peak, 0.2 air mile north and 0.0-0.1 air mile east of the summit of South Peak 518 Comment
  JROH3920  Bellardia trixago John Hunter Thomas 1980-5-8 19937 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3925  Bellardia trixago John Hunter Thomas 1986-6-7 24083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227899  Bellardia trixago G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  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
  UCR121576  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1999-6-28 5008 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC100196  Bellis perennis Ray H. Yarris 1951-5-20 65 San Mateo Kings Mountain 91 Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC75663  Berberis nervosa Paul Arnaud 1941-6-5 s.n. San Mateo Redwood City, Woodrow Street. Comment
  CAS-BOT-BC75864  Berberis pinnata Walter Knight; Walter Knight 1963-6-24 982 San Mateo San Bruno Mountains. Quarry 4. Comment
  POM312413  Berula erecta S. Galen Smith, Malcolm A. Nobs 1949-8-25 1561 San Mateo Shark Park Comment
  CAS-BOT-BC95344  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  RSA120720  Boykinia occidentalis S. S. Tillett, I. Sternback 1956-6-25 548 San Mateo Patterson Creek on Middleton property just above entrance to Portola State Park. 366 Comment
  JROH4858  Brachypodium distachyon John Hunter Thomas 1989-5-9 24725 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195672  Brassica oleracea J. T. Howell 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
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Jul 14 2014
  CAS-BOT-BC36668  Brassica oleracea John H. Thomas 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
  CAS-BOT-BC36797  Brassica rapa Alice Eastwood 1919-9-1 s.n. San Mateo Chinese garden. Comment
  RSA119338  Briza maxima S. S. Tillett, I. Sternback 1956-6-25 551 San Mateo Along roadside, Skyline Drive. 488 Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  SD631  Brodiaea coronaria Ulysses S. Grant IV 1925-6-10 San Mateo Hillsborough. Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  CAS-BOT-BC484351  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By Arey's residence near Stanford University Comment
  CAS-BOT-BC484352  Brodiaea elegans subsp. elegans F. H. Lamb 1895-6-14 s.n. San Mateo Along San Francis into Creek near St. Michael's Church Comment
  CAS-BOT-BC484353  Brodiaea elegans subsp. elegans Eric Walttier 1919-6-9 s.n. San Mateo Woodside Comment
  JROH4588  Brodiaea terrestris subsp. terrestris John H. Thomas 1956-4-7 5624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  POM169611  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC483169  Brodiaea terrestris subsp. terrestris John H. Thomas 1967-5-2 12818 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mountain intersection, Hillsborough Comment
  CAS-BOT-BC483180  Brodiaea terrestris subsp. terrestris W. R. Dudley 1906-5-8 s.n. San Mateo By road south of Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC144137  Bromus John H. Thomas 1965-4-29 10619 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  RSA594916  Bromus John H. Thomas 1962-4-24 9848 San Mateo San Bruno Mountan in northern part of county. 305 Comment
  CDA20476  Bromus carinatus R. Garcia 2004-5-4 PDR 1299033 San Mateo San Francisco Bay Area; 2091 Portola Rd, Woodside. 0 Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  RSA159425  Bromus carinatus John H. Thomas 1961-5-14 9374 B San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC148978  Bromus carinatus var. carinatus John Thomas Howell 1960-4-20 35210 A San Mateo In garden of Frances Payne Stickney, Hillcrest Road, San Mateo. Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  CAS-BOT-BC149018  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 329 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  JROH4896  Bromus carinatus var. carinatus John H. Thomas 1984-4-2 23273 3 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 Comment
  JROH4904  Bromus carinatus var. carinatus W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Going north on fire road from Goya, before serpentine, 40 yards to right up small hill, middle of oaks, 50 yds from turn by blue oaks. Comment
  UC153152  Bromus carinatus var. carinatus E. B. Copeland 1903-6-10 3303 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  CAS-BOT-BC148763  Bromus carinatus var. marginatus V. F. Hesse 1964-5-26 3209 San Mateo Near (south of) Pigeon Point. 15 Comment
  CAS-BOT-BC148764  Bromus carinatus var. marginatus Ira L. Wiggins 1929-5-10 3672 San Mateo At Pigeon Point. Comment
  CAS-BOT-BC156177  Bromus catharticus John Thomas Howell 1954-7-8 30010 San Mateo Skyline Boulevard above San Bruno. Comment
  SJSU15316  Bromus commutatus John Rawlings 2014-5-28 1242 San Mateo In the vicinity of the Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails). 184 Comment
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Feb 18 2015
  UCD164419  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CDA1794  Bromus diandrus Wm. Davis 1958-5-13 San Mateo Joos Nursery, Colma 0 Comment
  UCSC007723  Bromus diandrus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC162409  Bromus laevipes Josephine D. Randall 1907-6-5 155 San Mateo Santa Cruz Peninsula. Portola Valley. Comment
  JROH4932  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4936  Bromus laevipes John Hunter Thomas 1989-6-13 24769 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA107096  Bromus marginatus L. S. Rose 1956-7-2 56115 San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  RSA320909  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  UCD59044  Bromus maritimus Roxana S. Ferris 1920-4-27 1981 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo. 0 Comment
  SEINET10523819  Bromus rigidus Delzie Demaree 1932-4-27 Demaree 9021 San Mateo Mud lakes, Los Francos Woods. Comment
  CAS-BOT-BC161749  Bromus rubens Fred Hemphill 1973-4-22 787 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  JROH4963  Bromus sterilis John Rawlings 2013-4-10 1145 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near power poles in partial shade on Rattlesnake Rocks trail off of Rd. D 131 Comment
  CAS-BOT-BC233711  Buddleja davidii Phillip Wheeler 1965-6-8 s.n. San Mateo Bayshore, lower cut area, San Bruno Mountain Comment
  UC765079  Cakile edentula R. F. Hoover 1941-2-12 4755 San Mateo Half Moon Bay Comment
  SEINET12004682  Cakile edentula subsp. edentula E. H. Graham 1931-1 6940 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  UC765080  Cakile maritima R. F. Hoover 1941-2-12 4753 San Mateo Half Moon Bay Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC36958  Cakile maritima var. maritima Robert T. Orr 1961-6-27 s.n. San Mateo Ano Nuevo Island. Comment
  CAS-BOT-BC36959  Cakile maritima var. maritima Elsie Zeile 1946-7-1 s.n. San Mateo Montara. Comment
  CAS-BOT-BC36964  Cakile maritima var. maritima Otto M. Sokol 1953-5-9 87 San Mateo Just north of Pescadero Creek on coast road. Comment
  CAS-BOT-BC185143  Calamagrostis nutkaensis L. R. Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  SJSU9863  Calamagrostis rubescens S. H. Casey 1975-6-20 556 San Mateo Dean Trail, Huddert Park W of Woodside Comment
  JROH3324  Calandrinia ciliata John H. Thomas 1973-4-14 16550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC438535  Calandrinia ciliata George Oberlander 1950-4-2 630 San Mateo San Francisco Watershed Reserve. On Sweeney Ridge Comment
  JROH1637  Callitriche marginata John H. Thomas 1971-4-25 15780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116749  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mtn Peninsula, crow foot pond on alpine road opposite the Fitzpatrick place. Comment
  CAS-BOT-BC492213  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS61617  Calochortus albus W. L. Jepson 1922-3-19 9533 San Mateo back of Millbrae; Buriburi Ridge Comment
  JROH4596  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4603  Calochortus albus John H. Thomas 1976-4-28 18096 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4610  Calochortus albus John Hunter Thomas 1981-5-25 20633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA377255  Calochortus albus D. D. Keck 1932-5-13 1778 San Mateo Above Woodside on La Honda road, E slope of the Santa Cruz Mtns. Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492205  Calochortus albus Le Roy Abrams 1901-5-1 1571 San Mateo Woodside Comment
  CAS-BOT-BC492216  Calochortus albus Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC492225  Calochortus albus A. D. E. Elmer 1903-5-1 4846 San Mateo San Mateo Comment
  SEINET4169761  Calochortus albus Unknown 1925-4-28 San Mateo Burlingame Comment
  JROH4614  Calochortus argillosus James McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4631  Calochortus luteus John H. Thomas 1971-5-30 15960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4637  Calochortus luteus John Hunter Thomas 1981-5-25 20628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491985  Calochortus luteus David D. Keck 1932-5-11 1762 San Mateo Above Searsville Lake, on La Honda road, east slope of Santa Cruz Mountains. Comment
  CAS-BOT-BC389721  Calochortus tolmiei M. K. Wicksten 1971-6-16 39 San Mateo Huddart Prk. Comment
  CAS-BOT-BC493995  Calochortus tolmiei Le Roy Abrams 1902-5-20 s.n. San Mateo King's Mountain Comment
  UC1134540 Image available Calochortus venustus N. Carlson 1935-6-20 74 San Mateo at Head (or ridge) of Oil and Slate Creek Santa Cruz Quad. 670 Comment
  CAS-BOT-BC389706  Calochortus venustus L. Sigal 1969-7-1 s.n. San Mateo Skyline Boulevard Comment
  CAS-BOT-BC494045  Calochortus venustus Cherie Wetzel 1969-6-20 860 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  RSA81618  Calycadenia multiglandulosa subsp. robusta James I. McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Comment
  CAS-BOT-BC224668  Calystegia purpurata subsp. purpurata Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  JROH1839  Calystegia purpurata subsp. purpurata John H. Thomas 1968-4-19 14294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA394835A  Calystegia soldanella E. A. Purer 1933-7-27 18830 San Mateo Two miles south of Pigeon Point. Comment
  CAS-BOT-BC436445  Calystegia subacaulis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain, east of quarry Comment
  SEINET10905837  Campanula griffinii Thomas Thomas 22332 San Mateo Stanford University, about five miles sw of the downtown section of Palo Alto. Edge of chaparral Comment
  POM209849  Campanula prenanthoides D. D. Keck 1934-7-7 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10463066  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo Summit La Honda Grade Comment
  JROH1650  Cannabis sativa Ruth Porter 1982-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37159  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC37660  Cardamine californica W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula. Devil's Canyon, near Black Mountain. Comment
  CAS-BOT-BC37676  Cardamine californica A. D. E. Elmer 1903-4-1 4468 San Mateo Portola. 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
  POM272918  Cardamine californica var. integrifolia Lyman Benson 1928-4-21 107 San Mateo N end Searsville Ridge; Town: Stanford University; Mt. Range: Santa Cruz; River: San Francisquito Creek. Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  SEINET12004998  Cardamine integrifolia G. A. McCallum 1933-1 s.n. San Mateo back of Stanford Campus 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
  JEPS23926  Cardamine oligosperma LeRoy Abrams 1902-4-5 2308 San Mateo Searsville Comment
  JROH1495  Cardamine oligosperma John Hunter Thomas 1981-4-5 20275 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH582  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1989-5-9 24708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC281836  Carduus tenuiflorus John Thomas Howell 1939-6-16 14741 San Mateo Skyline Blvd near Crystal Springs Lake Comment
  RSA395824  Carduus tenuiflorus Cynthia Taylor 1971-6-12 163 San Mateo Corner of Bragado Road and Old Country Road, Belmont 6 Comment
  CAS-BOT-BC17853  Carex amplifolia Lewis S. Rose 1933-6-23 33250 San Mateo Kings Mountain. Comment
  SJSU15909  Carex barbarae John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1734 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  UC70629  Carex barbarae J. Burtt Davy 1893-6-17 782 San Mateo Belmont Comment
  UC577167  Carex bolanderi Lewis S. Rose 1935-6-11 35216 San Mateo Kings Mountain Comment
  UC212817  Carex densa Kellogg and Brannan 1870-6-1 San Mateo San Gregorio Creek Comment
  CAS-BOT-BC18925  Carex densa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Crocker Hills. Comment
  CAS-BOT-BC18934  Carex densa Lewis S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC227875  Carex densa Elizabeth McClintock; Paul Reeberg 1989-4-11 s.n. San Mateo San Bruno Mountains. In lower Randoph Ravine 53 Comment
  CAS-BOT-BC21816  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6056 San Mateo Near Pescadero. Comment
  CAS-BOT-BC21808  Carex harfordii Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo Lower Owl Canyon. 45 Comment
  UCD163544  Carex harfordii Peter Rubtzoff; Barbara Deutsch, James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. Comment
  JROH4353  Carex nudata W. Lennihan 1989-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Before low-flow crossing, edge of San Francisquito Creek. also in middle of creek. Comment
  CAS-BOT-BC119348  Carex obnupta V. F. Hesse 1953-8-22 1190 San Mateo Butano Ridge. 609 Comment
  CAS-BOT-BC176407  Carex obnupta Peter Rubtzoff; Roman Gankin 1975-5-21 7965 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA18462  Carex senta Carl B. Wolf 1927-6-29 546 San Mateo South of Pebble Beach near Pescadero Comment
  SEINET10949228 Image available Carex serratodens Charles F. Baker 1902-5-10 Baker 811 San Mateo Crystal Springs Lake, Comment
  JROH4363  Carex subbracteata John Rawlings 2010-5-19 1054 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few feet downstream from bridge at Ribes aureum site on Trail 12. 111 Comment
  POM248568  Carex subbracteata Alice Eastwood, John Thomas Howell, J. W. Stacey 1938-4-24 5256 San Mateo Pescadero. Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  UC306626  Carex subbracteata A. D. E. Elmer June, 1903 4429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC210009  Carex subbracteata Peter Rubtzoff 1978-5-18 9171 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC116815  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13776 San Mateo San Bruno Hills Comment
  CAS-BOT-BC116821  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5257 San Mateo Pescadero Comment
  CAS-BOT-BC116822  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5256 San Mateo Pescadero Comment
  CAS-BOT-BC116824  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5245 San Mateo Half Moon Bay Comment
  CAS-BOT-BC116826  Carex subbracteata var. subbracteata Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon in wet spot. Comment
  CAS-BOT-BC115510  Carex tumulicola Phillip C. Wheeler 1965-5-18 s.n. San Mateo In area adjacent to Olivet Cemetery. Comment
  POM193758  Carex tumulicola W. R. Dudley 1894-05 s.n. San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC249188  Castilleja affinis J. H. Thomas 1954-4-3 3831 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  POM88003  Castilleja affinis L. R. Abrams 1902-5-11 2437 San Mateo Crystal Springs Lake. Comment
  OBI59410  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney, Cliff Fenneman and George Bacigalupi, Jr 1954-8-3 4733 San Mateo Extreme NW San Mateo County. Hgts above Thornton Beach close to State Hwy 1 55 Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JEPS86226  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2451 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JROH3946  Castilleja affinis subsp. affinis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR121541  Castilleja affinis subsp. affinis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4996 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JEPS47424  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-15 1422 San Mateo about 2 mi below Skyline Boulevard (along Tunitas Road) 518 Comment
  UCR139351  Castilleja ambigua David D. Keck 1932-4-29 1453 San Mateo San Francisco Bay Region, Burlingame-San Mateo city limits, Bayshore Highway 3 Comment
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  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
  JROH5758  Castilleja densiflora subsp. densiflora M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab. Comment
  UCSB18232  Castilleja densiflora subsp. densiflora Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  UC406904  Castilleja exserta subsp. latifolia David D. Keck 1927-6-10 395 San Mateo Montara Point; Radio Station 0 Comment
  SEINET12288674  Castilleja foliolosa L. R. Abrams 1904-1 10 San Mateo Santa Cruz Peninsula, near Crystal Springs Lakes, Santa Cruz Mts 152 Comment
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  SD38137  Castilleja franciscana Edith A. Purer 1933-5-25 3653 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC243831  Castilleja latifolia David D. Keck 1931-10-5 1289 San Mateo One mile north of Salada Beach, 200 m. from ocean. Comment
  CAS-BOT-BC243832  Castilleja latifolia Walter Knight 1964-9-14 829 San Mateo Peak Mt., Montara Range Comment
  CAS-BOT-BC243834  Castilleja latifolia Peter H. Raven 1950-6-3 2267 San Mateo Near San Andreas Lake 121 Comment
  RSA448628  Castilleja latifolia D. D. Keck 1932-5-11 1768 San Mateo 2 miles north of San Gregorio Comment
  CAS-BOT-BC243836  Castilleja latifolia Francis W. Pennell 1940-6-29 26032 San Mateo Route 5, 13-14 mi. south of San Francisco 457 Comment
  JROH4008  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37774  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-24 3608 San Mateo Woodside Comment
  UC1039782  Castilleja subinclusa subsp. franciscana H. L. Mason 1927-4-23 3678 San Mateo La Honda to Pescadero Creek (via Blumquist Mill) Comment
  JEPS18915  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5451 San Mateo just Crystal Springs Lake (s lake) (along Skyline Blvd (Calif Hwy 5), at a point 6.2 mi n of the junction with Kings Mtn (not the La Honda) road) 396 Comment
  SEINET3840786  Castilleja wightii Unknown 2005-6-21 5 .371 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  UC1618077  Castilleja wightii Donald G. Nelson 1939-6-14 624 San Mateo 3 mi s San Francisco Co. line (Skyline Blvd, due e of Mussel Rock on the coast) Comment
  UC1713545  Castilleja wightii Katharine Brandegee 1917-7-29 San Mateo Tunitas Station; Ocean Shore R.R. Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  JEPS88823  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mi n Montana Comment
  OBI78360  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mtn, S of parking lot 366 Comment
  CAS-BOT-BC39377  Caulanthus lasiophyllus John H. Thomas 1961-5-13 9339 San Mateo At Franklin Point. Comment
  CAS-BOT-BC40392  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  JROH1523  Caulanthus lasiophyllus John H. Thomas 1963-3-20 10024 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  CAS-BOT-BC48310  Ceanothus cuneatus Margaret A. Barry 1928-5-22 s.n. San Mateo Coal Mine Ridge Comment
  SBBG32289  Ceanothus cuneatus var. dubius L. S. Rose 1964-3-23 64011 San Mateo Emerald Lake, W of Redwood City 121 Comment
  UCR51552  Ceanothus griseus R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  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
  JROH3531  Ceanothus oliganthus var. sorediatus John H. Thomas 1975-5-12 17847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC51240  Ceanothus papillosus Mita C. Daniel 1915-4-10 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC51242  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  UC79825  Ceanothus papillosus var. papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain Comment
  RSA136268  Ceanothus papillosus var. roweanus Stewart H. Burnham 1894-4-29 1577 San Mateo Above woodside. Comment
  CAS-BOT-BC52287  Ceanothus thyrsiflorus L. R. A. 1902-5-20 2463 San Mateo King's Mountain Comment
  CAS-BOT-BC52300  Ceanothus thyrsiflorus W. R. Dudley 1900-4-15 s.n. San Mateo Above Crystal Springs and Half Moon Bay road Comment
  CAS-BOT-BC52302  Ceanothus thyrsiflorus Barrett Anderson; Peter Rubtzoff 1988-4-22 2667 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  CAS-BOT-BC52311  Ceanothus thyrsiflorus H. A. Borthwick 1920-4-28 s.n. San Mateo Crystal Springs Lake Comment
  JEPS85551  Ceanothus thyrsiflorus Craig Dremann 1986-8-30 322 San Mateo W of La Honda (Hwy 84 (Woodside-La Honda rd), 100 ft W of mile marker 6.68) Comment
  RSA210944  Ceanothus thyrsiflorus E. K. Balls 1969-9-16 12175 San Mateo 6.5 miles F from Skywood along L Honda road, by the San Gregorio Creek, Santa Cruz Mts. 122 Comment
  SBBG64339  Ceanothus thyrsiflorus var. thyrsiflorus C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  POM177456  Centaurea calcitrapa L. R. Abrams, I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  UC306675  Centaurea calcitrapa A. D. E. Elmer Jul 1903 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274584  Centaurea calcitrapa Evelina Cannon 1896-1-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC274586  Centaurea calcitrapa L. R. Abrams; I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC274591  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274592  Centaurea calcitrapa Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC274593  Centaurea calcitrapa Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  RSA0115047  Centaurea calcitrapa Lyman Benson 1945-7-29 11838 San Mateo Bayshore Highway at San Carlos. 3 Comment
  SEINET11860703  Centaurea calcitrapa Unknown 1933-8-13 10506 San Mateo Belmont Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  JROH598  Centaurea melitensis John H. Thomas 1962-6-10 9909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH609  Centaurea solstitialis John Hunter Thomas 1984-9-6 23477 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22960  Centaurium davyi L. R. Abrams, I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point. Comment
  UCD130207  Centromadia pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC279331  Centromadia pungens subsp. pungens Ned Cahill 1974-10-8 377 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  CAS-BOT-BC279332  Centromadia pungens subsp. pungens Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  SBBG35987  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  POM319936  Cerastium arvense Barbara Shervanick 1973-4-1 788 San Mateo San Bruno Mt. at first summit at end of Crocker Rd.; Mt. Range: San Bruno Mts.; Drainage Area: San Francisco Bay. Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  JROH152  Ceratophyllum demersum John Hunter Thomas 1981-7-12 20712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3618  Cercocarpus betuloides var. betuloides H. L. Dale 1927-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3623  Cercocarpus betuloides var. betuloides John H. Thomas 1964-4-7 10301 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  SEINET6901192  Chenopodium album Robert A. Evers, Clara V. Evers 1975-8-24 115025 -A San Mateo Trailer Villa, Redwood City. Comment
  UC1191353  Chenopodium berlandieri Malcolm A. Nobs and S. Galen Smith 1949-8-26 1605 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  JROH1818  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1076471  Chenopodium multifidum Herbert L. Mason 1924-10-19 1115 San Mateo Colma Comment
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Apr 6 2009
  JROH5858  Chenopodium rubrum var. humile Toni Corelli 2003-11-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; dry lake bed, Corte Madera Creek delta Comment
  CAS-BOT-BC497723  Chlorogalum pomeridianum Fred Hemphill 1973-5-14 818 San Mateo San Carlos, Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC497726  Chlorogalum pomeridianum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH4650  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1981-5-19 20605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC246303  Chloropyron maritimum subsp. palustre J. W. Congdon 1881-5-24 s.n. San Mateo 14 mines south of San Francisco Comment
  POM87940  Chorizanthe cuspidata var. marginata L. R. Abrams 1901-05 1603 San Mateo Colma Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC36450  Chrysolepis chrysophylla W. R. Dudley 1900-3-16 s.n. San Mateo By road to Kings Mountain Comment
  RSA18289  Chrysolepis chrysophylla Carl B. Wolf 1927-6-21 428 San Mateo East slope of Kings Mt. Comment
  UC527532  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 San Mateo 0.5 way up e side Kings Mt. 365 Comment
  CAS-BOT-BC36403  Chrysolepis chrysophylla var. minor Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  JROH628  Cirsium brevistylum John H. Thomas 1961-6-7 9535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3890  Cirsium brevistylum I. L. Wiggins 1929-7-4 3787 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA18503  Cirsium brevistylum C. B. Wolf 1927-7-14 617 San Mateo Summit of Kings Mt. Comment
  CAS-BOT-BC100945  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14743 San Mateo Crystal Springs Lake Comment
  SJSU2901  Cirsium fontinale var. fontinale G. E. Pilz 1965-8-3 156 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  UC91574  Cirsium fontinale var. fontinale Alice Eastwood 1897-6-1 San Mateo Crystal Springs Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  UC614959  Cirsium occidentale var. venustum Beryl O. Schreiber 1932-5-29 312 San Mateo Crystal Springs Comment
  UC917253  Cirsium occidentale var. venustum W. A. Harvey and J. M. Tucker 1948-6-29 1708 San Mateo just w junction with Highway 5 (Skyline Boulevard) (beside road to Portola State Park); ; <State route 5 became state route 35> Comment
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Sep 8 2011
  CAS-BOT-BC280508  Cirsium quercetorum John H. Thomas 1955-4-6 4850 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CDA1534  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  JEPS27347  Cirsium quercetorum Rimo Bacigalupi with L. Heckard and Jim Roof 1961-4-24 7607 San Mateo meadow at summit of divide between Colma Canyon and Guadulupe Valley (just n of San Bruno Mt.); Colma Canyon, Guadalupe Valley, San Bruno Mt. 205 Comment
  CAS-BOT-BC280517  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC280528  Cirsium quercetorum George Oberlander 1949-7-10 252 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  CAS-BOT-BC285869  Cirsium vulgare George Oberlander 1949-8-20 335 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC164313  Clarkia davyi A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC172091  Clarkia davyi Peter H. Raven 1950-6-3 22301 San Mateo Roadside cut, Millbrae Ave., Millbrae 91 Comment
  CAS-BOT-BC172000  Clarkia epilobioides Robert F. Hoover 1941-4-23 4904 San Mateo Redwood City Hills Comment
  HSC23960  Clarkia purpurea Mary Katherine Wicksten 1971-6-17 46 San Mateo Huddart Park above Oak Flat Comment
  CAS-BOT-BC163967  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-30 s.n. San Mateo Near La Honda Comment
  JEPS127894  Clarkia purpurea subsp. quadrivulnera Adam C. Schneider 2013-5-17 178 San Mateo Comment
  JROH3005  Clarkia purpurea subsp. quadrivulnera John Hunter Thomas 1981-5-5 20537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4145649  Clarkia purpurea subsp. quadrivulnera A. A. Heller 1906-6-8 8384 San Mateo Near Ocean View, San Francisco Comment
  CAS-BOT-BC164565  Clarkia purpurea subsp. viminea Ned Cahill 1974-5-18 284 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC165134  Clarkia rubicunda A. D. E. Elmer 1903-6-1 4310 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165161  Clarkia rubicunda W. R. Dudley 1896-11-15 s.n. San Mateo Near Pilarcitos Lake Comment
  CAS-BOT-BC165164  Clarkia rubicunda Peter H. Raven 1957-6-30 11014 San Mateo 1.8 miles east of Pescadero on road along Pescadero Creek Comment
  CAS-BOT-BC165178  Clarkia rubicunda Ira L. Wiggins 1938-7-9 8933 San Mateo Pigeon Point, about one half mile North of the Light House Comment
  JEPS17914  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo just s Pedro Point (high above the ocean, w end of mountain); Montara Mtn. Comment
  JEPS29416  Clarkia rubicunda L. R. Heckard 1961-7-16 1263 San Mateo ne transmitting station KQED (near summit of mountain); San Bruno Mt. 335 Comment
  JROH3013  Clarkia rubicunda John H. Thomas 1963-6-23 10164 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  JROH3032  Clarkia rubicunda John Hunter Thomas 1983-7-7 22815 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SBBG5002  Clarkia rubicunda H. and M. Dearing 1951-8-17 6945 San Mateo Pigeon Point, N of Santa Cruz Comment
  SD39467  Clarkia rubicunda Edith A. Purer 1932-7-16 San Mateo Near Halfmoon Bay. Comment
  UC1279907  Clarkia rubicunda Peter H. Raven 1957-6-24 10969 San Mateo 0.5 mi s San Gregorio (on old coast highway) Comment
  UC762860  Clarkia rubicunda R. F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  UCD169582  Clarkia rubicunda M. K. Wicksten 1971-8-10 224 San Mateo Moss Beach, bluff above Galway Bay. Comment
  UCR3564  Clarkia rubicunda Wm. Horn Jr. 1963-8-26 630826- 03 San Mateo 1.5 mi. east of Tunitas Beach, on Tunitas Creek Road 76 Comment
  CAS-BOT-BC165131  Clarkia rubicunda Carl B. Wolf 1927-6-29 566 San Mateo On the coast 3 mi. so. of San Gregorio Comment
  CAS-BOT-BC165132  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  CAS-BOT-BC165163  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along state Highway 1 Comment
  SD56674  Clarkia rubicunda Darley F. Howe 1963-7-31 3648 San Mateo 3 miles North of Pacifica on #1, on sea bluff. Comment
  UC1279948  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 mi from San Gregorio (on road to La Honda); San Gregorio Creek Comment
  CAS-BOT-BC165599  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  POM164075  Claytonia exigua subsp. exigua C. F. Baker 1903-4-6 1884 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UCSC007733  Claytonia parviflora Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC439595  Claytonia parviflora subsp. parviflora E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike station. 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
  JROH3342  Claytonia perfoliata subsp. perfoliata Daniel Cohen 1953-4-11 20 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3346  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  JROH5905  Claytonia perfoliata subsp. perfoliata M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  JROH3407  Clematis lasiantha John H. Thomas 1959-4-5 7666 San Mateo Jasper Ridge Biological Preserve, Stanford University. Chaparral at the western end of the ridge Comment
  JROH3412  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3416  Clematis lasiantha John H. Thomas 1979-4-12 19450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18269  Clematis lasiantha Carl B. Wolf 1927-6-27 454 San Mateo 2 miles back of Stanford University. Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  SEINET12099156  Clematis ligusticifolia Unknown 1931-1 7796 San Mateo Jaspan Ridge, common Comment
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May 3 2019
  JROH2872  Clinopodium douglasii John H. Thomas 1969-6-4 15110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2876  Clinopodium douglasii D. E. Breedlove 1971-5-31 19366 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  HSC23891  Clinopodium douglasii Mary Katherine Wicksten 1971-6-16 33 San Mateo Bank at Huddart Park, by Werder Flat Comment
  CAS-BOT-BC499375  Clintonia andrewsiana A. Kellogg 1870-5-16 s.n. San Mateo San Gregoria Creek Comment
  CAS-BOT-BC499407  Clintonia andrewsiana Mrs. Donahue 1921-5-30 s.n. San Mateo Kings Mt. Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  CAS-BOT-BC240922  Collinsia multicolor Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC240923  Collinsia multicolor A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  CAS-BOT-BC286208  Conyza canadensis Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UC1080552  Corallorhiza maculata S. S. Tillett and I. Sternback 1956-6-25 546 San Mateo along ridge on border of Middleton property and Portola State Park (s side of road to park) 396 Comment
  POM88156  Cordylanthus maritimus subsp. palustris L. R. Abrams 1900-10 1031 San Mateo Cooley's Landing Comment
  SEINET5796159 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside. Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  JROH4024  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS23960  Cordylanthus rigidus subsp. rigidus John H. Thomas 1959-8-22 8075 San Mateo Jasper Ridge, 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  RSA51367  Cordylanthus rigidus subsp. rigidus L. S. Rose 1949-8-14 49163 San Mateo Emerald Lake, hills west of Redwood City. 122 Comment
  RSA130827  Cordylanthus rigidus subsp. rigidus W. R. Dudley 1902-9-1 s.n. San Mateo Whipple Road near Crystal Springs Lake. Comment
  CAS-BOT-BC101481  Corethrogyne filaginifolia W. R. Dudley 1896-4-6 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC101482  Corethrogyne filaginifolia L. R. A. 1902-5-11 2459 San Mateo Crystal Springs Comment
  CAS-BOT-BC101484  Corethrogyne filaginifolia John Thomas Howell 1962-6-6 37415 San Mateo Crystal Springs Lake Comment
  POM39730  Corethrogyne filaginifolia var. californica Katherine Brandegee 1905-6-20 s.n. San Mateo Near Lake Pilarcitos Comment
  POM287429  Cornus nuttallii Lyman Benson 1930-5-3 2087 San Mateo Near Woodside. 305 Comment
  CAS-BOT-BC210361  Cornus sericea Dr. E Goodman 1922-7-1 s.n. San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC210362  Cornus sericea James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek below Stock Farm Comment
  UC1206477  Corylus californica Le Roy Abrams 1902-3-16 2271 San Mateo Kings Mountain Comment
  CAS-BOT-BC180370  Corylus cornuta subsp. californica Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road 3/4 of a mile above Woodside Comment
  JROH1332  Corylus cornuta subsp. californica John H. Thomas 1959-4-5 7668 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD110057  Corylus cornuta subsp. californica Franklin W. Martin; Madelain N. Martin 1960-3-26 47 San Mateo YMCA camp 10 miles east of Pescadero. 152 Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3641  Cotoneaster pannosus John Hunter Thomas 1982-10-16 21181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3647  Cotoneaster pannosus John Hunter Thomas 1992-5-14 25232 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  CAS-BOT-BC291466  Cotula coronopifolia John H. Thomas 1963-5-8 10063 San Mateo San Bruno Mountain 396 Comment
  CHSC27886  Cotula coronopifolia Susan Perkins 1978-3-24 7 San Mateo San Gregorio Beach, at jct Hwys 1 and 84. 30 yds s of San Gregorio Creek. 6 Comment
  JROH663  Cotula coronopifolia John Hunter Thomas 1982-11-6 21198 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake delta Comment
  RSA187304  Cotula coronopifolia John H. Thomas 1963-7-19 10193 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  CAS-BOT-BC291461  Cotula coronopifolia Phillip C. Wheeler 1965-5-8 s.n. San Mateo Point Sierra, San Bruno Mountain Comment
  CAS-BOT-BC291462  Cotula coronopifolia Javier Penalosa 1963-2-23 2658 San Mateo South of Crocker Ave., San Bruno Mountain 213 Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  UCD101808  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Block Mountain; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  JEPS121548  Crassula connata Adam C. Schneider with C. Matt Guilliams 2013-3-9 26 San Mateo Crystal Springs Reservoir Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3658  Crataegus monogyna Carol Zabel 1989-4-19 10 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake, south side. Half way between Trail 13 causeway bridge and old middle lake boat landing. Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  JEPS100484  Crocosmia X crocosmiiflora Dean Wm. Taylor, Shelia Byrne 2000-8-1 17540 San Mateo western slope near summit of Scarper Peak; Santa Cruz Mountains, Montara Mountain 502 Comment
  UC1219869  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo w end San Bruno Mountain (n San Mateo County) 243 Comment
  JROH1963  Croton setiger John Hunter Thomas 1992-7-24 25394 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4999  Crypsis vaginiflora John H. Thomas 1976-10-16 18405 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH5739  Cryptantha clevelandii var. florosa John Rawlings 2015-5-28 1659 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bird marker along Trail 9 at edge of chaparral. 140 Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1363  Cryptantha micromeres Paul R. Hichborn 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge near Searsville Lake Comment
  RSA92810  Cryptantha microstachys P. H. Raven 1950-4-16 1801 San Mateo Summit ridge, San Bruno Mountains. 244 Comment
  RSA44330  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  UCD127346  Cyclospermum leptophyllum John Thomas Howell 1975-9-13 51507 San Mateo Hillside Street just west of El Camino, Burlingame. 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
  POM128514  Cynoglossum grande L. R. Abrams 1902-4-6 2317 San Mateo Searsville. Comment
  RSA291933  Cynoglossum grande Robert A. Norris, John L. Inase, Willie J. Roberts, Nelson R. Powers 1982-1-30 4326 San Mateo Perennials along Chickadee Trail, Huddart County Park, ca. 3 1/2 miles W Woodside. 274 Comment
  SD39210  Cynoglossum grande McCallum 1933-4-19 3703 San Mateo Woodside Comment
  SD67319  Cynoglossum grande Darley F. Howe 1967-4-14 4349 San Mateo San Francisco Game Reserve near San Bruno 89 Comment
  UCR121491  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 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
  UC1100529  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-28 13084 San Mateo entrance to county prison San Francisco Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  RSA800277  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
  CAS-BOT-BC67972  Cystopteris fragilis Roxana S. Ferris 1921-3-20 2108 a San Mateo 6 mi. from Pescadero Comment
  UCD119665  Cytisus scoparius Annabelle Kleist 2008-5-28 Wun- 2 San Mateo Woodside, Wunderlich Park. Comment
  JROH5020  Dactylis glomerata John Hunter Thomas 1980-5-27 19990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5024  Dactylis glomerata John Hunter Thomas 1985-5-21 23665 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge Comment
  CAS-BOT-BC192238  Danthonia californica L. R. A. 1902-5-11 2451 San Mateo Crystal Springs Comment
  CAS-BOT-BC192240  Danthonia californica Roxana S. Ferris 1920-4-26 2021 San Mateo 2 mi south of Pescadero on Pigeon Pt. Road 30 Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA11231  Danthonia californica D. Keck; 1932-5-6 1479 San Mateo W of Millbrae Highlands 50.0 Comment
  JROH1904  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH223  Daucus pusillus John H. Thomas 1968-5-22 14455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS59962  Deinandra corymbosa Lewis S. Rose 1969-8-22 69097 San Mateo Skyline and Half Moon Bay Road; Cahill Ridge 243 Comment
  CAS-BOT-BC299195  Deinandra corymbosa subsp. corymbosa Hazelle A. Thomas 1956-6-24 s.n. San Mateo Arroyo de la Frioles along the coast Comment
  CAS-BOT-BC300005  Deinandra lobbii Roxana Stinchfield 1915-10-14 258 San Mateo Above Basaltic Collumns near Standford University, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC292115  Delairea odorata J. H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno Comment
  CAS-BOT-BC9222  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountains, Colma Canyon 60 Comment
  HSC25037  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mtns., Colma Canyon 61 Comment
  CAS-BOT-BC9209  Delphinium californicum subsp. californicum Adolph Daniel Edward Elmer 1903-7-1 4548 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC9870  Delphinium nudicaule Josephine D. Randall 1907-6-29 312 San Mateo Kings Mountain road. Comment
  CHSC60193  Delphinium nudicaule Jan M. Karaz 1979-5-27 59 San Mateo 3 mi e of Hwy 280 intersection with Woodside Road, 1.2 mi e of Woodside on Mountain Home Road. 7 Comment
  JROH3452  Delphinium patens subsp. patens John H. Thomas 1972-4-1 16050 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7900  Delphinium variegatum Alice Eastwood 1896-5-1 s.n. San Mateo Crystal Springs Comment
  SEINET3075261 Image available Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside Hills, 3 miles west of Woodside. 180 Comment
  CAS-BOT-BC7886  Delphinium variegatum K. Hofpaugh 1929-5-8 422 San Mateo Crystal Lake, Skyline Blvd. near San Francisco Comment
  JROH3466  Delphinium variegatum subsp. variegatum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM148952  Delphinium variegatum subsp. variegatum A. D. E. Elmer 1903-05 s.n. San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC389715  Dendromecon rigida Sharon Rogers 1966-4-1 105 San Mateo San Mateo Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  CAS-BOT-BC633  Dendromecon rigida subsp. rigida Ira L. Wiggins 1925-5-24 1747 San Mateo Grade between Woodside and La Honda. Comment
  UC204139  Deschampsia A. D. E. Elmer June, 1903 4693 San Mateo San Pedro Comment
  UCD63821  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-6-1 San Mateo Hwy. #5, ca. 6 mi. from S.F. Co. line. Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CAS-BOT-BC908  Dicentra formosa subsp. formosa George Thomas Oberlander 1949-5-21 194 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC389662  Dichelostemma capitatum Wm. McCauley 1963-3-30 s.n. San Mateo Coyote Point Comment
  JROH4655  Dichelostemma capitatum subsp. capitatum John H. Thomas 1967-5-10 12854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4660  Dichelostemma capitatum subsp. capitatum John Hunter Thomas 1991-4-25 25003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD148239  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2013-3-28 2900 San Mateo Hillsborough, along Crystal Springs Rd where it crosses under the Junipero Serra Freeway. 99 Comment
  JROH4654  Dichelostemma capitatum subsp. capitatum Elmer I. Applegate 1895-5-11 703 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Dam Comment
  UCSB11443  Dichelostemma capitatum subsp. capitatum Olson, Jim 1962-4-17 San Mateo 10 miles east of Halfmoon Bay on Canada Road 30 Comment
  CAS-BOT-BC502169  Dichelostemma congestum Fred Hemphill 1973-4-22 666 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  JROH5076  Digitaria sanguinalis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In S.F. Creek bed, a few hundred yards below N. bend, at the Dennis Martin settlement site. 71 Comment
  CAS-BOT-BC150468  Diplacus aurantiacus Elizabeth McClintock; Paul Reeberg 1988-5-20 s.n. San Mateo Carter Street Comment
  CAS-BOT-BC121868  Dirca occidentalis Alice Eastwood 1922-5-31 11334 San Mateo Crystal Springs Lakes Comment
  HSC21402  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo North end of Crystal Springs Lake. 122 Comment
  JROH4202  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4217  Dirca occidentalis Carol Zabel 1990-4-15 40 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG33466  Dirca occidentalis A. D. E. Elmer -Mar-1903 4123 San Mateo Alpine Road Comment
  SJSU647  Dirca occidentalis S. R. Piazza 1941-3-2 San Mateo near S side Searsville L Comment
  POM277204  Disporum hookeri var. hookeri Lyman Benson 1937-8-15 8491 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  RSA176414  Disporum hookeri var. hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  RSA76139  Disporum hookeri var. hookeri George H. Ward 1950-4-8 949 San Mateo 1 mile N of La Honda. Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1001491  Dodecatheon clevelandii subsp. patulum H. J. Thompson 1948-2-23 1037 San Mateo sw Stanford University (e end of Jasper Ridge near Los Trancos Creek); sw of Stanford University, nr Los Trancos Creek Comment
  JROH5680  Dodecatheon hendersonii John Rawlings 2015-3-3 1314 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC389755  Dodecatheon hendersonii J. Nieri 1969-2-26 s.n. San Mateo Hillsborough 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
  JROH5685  Draba verna John Rawlings 2015-2-15 1279 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Trail 7 at Hillside Lab 150 Comment
  RSA133097  Drymocallis glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  RSA100999  Drymocallis glandulosa var. wrangelliana G. Oberlander 1950-4-2 559 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  UC903192  Drymocallis glandulosa var. wrangelliana Ethel Crum 1930-4-27 707 San Mateo Woodside 152 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-BC67880  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC67882  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  CAS-BOT-BC67891  Dryopteris arguta Fred Hemphill 1973-3-17 801 San Mateo San Carlos - north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH41  Dryopteris arguta John Hunter Thomas 1982-11-8 21257 C San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1063776  Dryopteris arguta G. E. Sindel 1935-8-2 321 San Mateo head of Harington Creek; Santa Cruz Quadrangle Comment
  IRVC3913  Dryopteris arguta P. W. Rundel 1963-6-11 1124 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  POM217106  Dryopteris arguta D. D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 305 Comment
  SEINET10530141  Dryopteris arguta Mary Susan Taylor 1978-8-30 Taylor 1861 San Mateo Comment
  POM281632  Dryopteris expansa Lyman Benson 1930-5-26 2139 San Mateo Stanford University, Lake Searsville 152 Comment
  UCR130218  Dudleya caespitosa George K. Helmkamp, E. A. Helmkamp 1999-6-28 4995 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH1823  Dysphania multifida John H. Thomas 1976-10-16 18408 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH5603  Echinochloa crus-galli John Rawlings 2013-9-12 1207 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta. 105 Comment
  JROH4304  Echinodorus berteroi John H. Thomas 1964-11-15 10523 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry lake margin at east end of Searsville Dam Comment
  UCR242653  Ehrharta erecta A. C. Sanders 2012-11-11 40518 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  JROH4409  Eleocharis macrostachya John Hunter Thomas 1987-5-19 24301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5655  Eleocharis macrostachya John Rawlings 2014-5-23 1271 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  JROH5796  Elymus X hansenii John Rawlings 2016-7-6 1892 San Mateo Jasper Ridge Biological Preserve, Stanford University; 80 yards west of Escobar Gate and 6 ft. south of Rd F 163 Comment
  POM319918  Elymus glaucus Barbara Shervanick 1973-4-1 797 San Mateo San Bruno Mts.; first summit on Crocker Rd. Comment
  UC646422  Elymus glaucus J. Clausen 1937-6-20 1529 San Mateo hills w Redwood City (near the Easter Cross) Comment
  UCR132239  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo San Francisco Peninsula, northern city limits of Pacifica along Calif. Hwy 1, just southwest of its junction with Skyline Boulevard 61 Comment
  CAS-BOT-BC235205  Elymus multisetus Ned Cahill 1974-5-30 306 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5122  Elymus multisetus John H. Thomas 1975-5-26 17910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC210135  Elymus repens Peter Rubtzoff 1977-6-21 9055 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  UCD164330  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  UCD62711  Elymus trachycaulus subsp. trachycaulus L. R. Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  CAS-BOT-BC166141  Epilobium canum subsp. canum John Thomas Howell 1932-10-19 10853 San Mateo Skyline Boulevard at summit of hills east of Half Moon Bay Comment
  CAS-BOT-BC166142  Epilobium canum subsp. canum Walter Knight; Irja Knight 1965-5-15 1112 San Mateo Pig Ranch Ravine. Up about half way on south facing slope 213 Comment
  CAS-BOT-BC166615  Epilobium canum subsp. canum C. F. Leithold 1894-8-12 s.n. San Mateo Summit near Black Mt., Santa Cruz Mts. Comment
  RSA40474  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Santa Cruz Mountain Peninsula: Guadalupe Valley Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  SJSU802  Epilobium canum subsp. canum M. B. Mirassou 1943-5-10 191 San Mateo near Pigeon Point Comment
  UC1122298  Epilobium canum subsp. canum G. E. Sindel 1935-8-19 335 San Mateo 1 mi sw Langley Hill; Santa Cruz Quadrangle Comment
  UCR121551  Epilobium ciliatum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4998 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR123145  Epilobium ciliatum subsp. glandulosum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6796 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  UCD105792  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs; S. Galen Smith 1949-8-25 1548 San Mateo Sharp Park. 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
  JEPS79604  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  CAS-BOT-BC57030  Equisetum arvense Phillip C. Wheeler 1965-5-23 s.n. San Mateo N. W. Radio Road Comment
  RSA30891  Equisetum hyemale var. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero near mouth of canon. The Santa Cruz Mtn Peninsula. Comment
  JROH5140  Eragrostis pectinacea var. pectinacea John H. Thomas 1974-10-29 17646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5144  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2005-8-24 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  SEINET11859535  Erechtites argutus Unknown 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  JEPS112717  Eriastrum abramsii Dean W. Taylor 1994-5-10 14261 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  JROH3148  Eriastrum abramsii John Hunter Thomas 1977-6-16 18770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU12768  Eriastrum abramsii Toni Corelli 1986-5-22 San Mateo Edgewood County Park near junction of Edgewood Rd & Hwy 280, Redwood City 219 Comment
  RSA0103881  Eriastrum abramsii L. S. Rose 1937-9-21 37659 San Mateo Emerald Lake. 183 Comment
  JROH654  Erigeron canadensis John Hunter Thomas 1991-11-21 25105 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JROH677  Erigeron canadensis Toni Corelli 2006-9-20 327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above Corte Madera Creek, west of Trail 12 106 Comment
  JEPS83065  Erigeron foliosus var. franciscensis Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-23 448 San Mateo n end Sawyer Ridge (on sw-facing slope above last curve in gravel ridge before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  CAS-BOT-BC295078  Erigeron glaucus A. A. Heller 1907-4-20 8455 San Mateo Near Lake Merced Comment
  CHSC320  Erigeron glaucus B. Richardson 1929-5-11 San Mateo Moss Beach. 9 Comment
  CAS-BOT-BC344850  Erigeron philadelphicus Peter Rubtzoff; Roman Gankin; Elizabeth McClintock; Bill Burley 1979-6-7 9288 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC300246  Erigeron reductus var. angustatus John Thomas Howell 1930-11-9 s.n. San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC216127  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216247  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2724  Eriodictyon californicum John H. Thomas 1973-5-5 16767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2725  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; riders' shack Comment
  SEINET3479294  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountains, Kings Mountains 480 Comment
  SEINET8731331 Image available Eriodictyon californicum L. S. Rose 1941-1 41288 San Mateo Kings Mountain 480 Comment
  RSA766407  Eriogonum caninum D. D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake. Comment
  RSA766408  Eriogonum caninum Delzie Demaree 1933-5-25 10514 San Mateo Sky Line drive Comment
  CAS-BOT-BC250543  Eriogonum gracile L. R. A. 1902-9-21 2988 San Mateo Crystal Lake Comment
  CAS-BOT-BC250544  Eriogonum gracile John H. Thomas 1969-10-19 15478 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250546  Eriogonum gracile L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake in hills near Redwood City Comment
  CAS-BOT-BC250541  Eriogonum gracile Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. Canyon south of Pig Ranch Comment
  CAS-BOT-BC250542  Eriogonum gracile W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Whipple Road near Crystal Springs Lake Comment
  CAS-BOT-BC251985  Eriogonum latifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. On bluffs in open areas Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA18452  Eriogonum latifolium Carl B. Wolf 1927-6-29 555 San Mateo South of Pebble Beach near Pescadero. Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  UC77427  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  RSA523299  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo Cove 2 miles south of Pescadero 15 Comment
  SEINET3814248 Image available Eriogonum latifolium Lewis S. Rose 1933-7-21 33307 San Mateo Montara. Comment
  CAS-BOT-BC264779  Eriogonum luteolum Lewis S. Rose 1931-8-28 s.n. San Mateo Crystal Spring Lakes Comment
  POM165227  Eriogonum luteolum C. F. Baker 1902-9-10 1674 San Mateo Crystal Springs Lake Comment
  POM263681  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JROH3226  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  CAS-BOT-BC268997  Eriogonum nudum var. auriculatum J. H. Thomas 1958-6-11 7226 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC269005  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, w. of Redwood City 243 Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC304066  Eriophyllum confertiflorum Linda Fox 1969-6-20 1005 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  SEINET11850692  Eriophyllum confertiflorum Unknown 1932-1 9194 San Mateo no further locality Comment
  UC517987  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH719  Eriophyllum lanatum var. arachnoideum Volney Rattan unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA116759  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-7-17 s.n. San Mateo By Bear Gulch Road Comment
  CAS-BOT-BC301271  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain Peninsula. By county road below Dam, San Mateo Creek Comment
  LA203607  Eriophyllum latilobum Ira L. Wiggins; 1929-7-4 3785 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  JEPS30882  Eriophyllum staechadifolium J. H. Thomas 1949-10-16 1151 San Mateo just n of outlet San Gregorio Creek Comment
  SBBG25086  Eriophyllum staechadifolium D. Myrick 1966-6-11 1445 San Mateo near Pescadero Crk, off Hwy 1, S of San Francisco Comment
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  JROH2600  Erodium botrys John H. Thomas 1974-4-4 17085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3558734 Image available Erodium botrys David D. Keck 1932-3-6 1391 San Mateo Portola. Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54834  Erysimum franciscanum G. B. Rossbach 1955-3-12 568 San Mateo Just inland and southeast of Devil's Slide, west edge of Montara Mountains. 121 Comment
  CAS-BOT-BC54861  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, southwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54865  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-BC54879  Erysimum franciscanum Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  CAS-BOT-BC54886  Erysimum franciscanum James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs. Comment
  RSA101845  Erysimum franciscanum G. B. Rossbach 1939-5-12 913 San Mateo 1.5 miles N of Sharp Park (Salada Beach) Comment
  RSA101923  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. 122 Comment
  SBBG92004  Erysimum franciscanum H. E. and S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  UC1034698  Erysimum franciscanum G. B. Rossbach 1955-3-12 567 San Mateo lower w slope of ridge above E shore Crystal Spring Lake; Pulgas Ridge Comment
  UC1034707  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo open rocky summit near radio tower (crest of mt); San Bruno Mountain 400 Comment
  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
  RSA0001946  Erysimum franciscanum G. B. Rossbach 1938-5-18 837 San Mateo East side of Crystal Springs Lake. 107 Comment
  CHSC22332  Erythranthe guttata Robert A. Schlising; Glenn Keator 1962-2-3 2044 San Mateo Coast Ranges. Along Highway 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
  CAS-BOT-BC403557  Eschscholzia californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt. Cable Ravine Comment
  POM272329  Eschscholzia californica subsp. californica Lyman Benson 1931-3-3 2621 San Mateo Moss Beach. 15 Comment
  CAS-BOT-BC202741  Euonymus occidentalis A. D. E. Elmer 1903-5-1 4317 San Mateo Butano Creek Comment
  CAS-BOT-BC202743  Euonymus occidentalis G. H. Mallory 1919-8-20 s.n. San Mateo La Honda Comment
  CAS-BOT-BC202744  Euonymus occidentalis Roxana Stinchfield 1914-3-1 s.n. San Mateo Above Corte Madera, Santa Cruz Mts. Comment
  CAS-BOT-BC206912  Euonymus occidentalis D. E. Breedlove 1974-5-13 36208 San Mateo Slopes of San Pedro Valley Park, Pacifica. 152 Comment
  SEINET10453530  Euonymus occidentalis Mary Susan Taylor 1978-8-30 Taylor 1856 San Mateo Comment
  JROH5788  Euphorbia oblongata John Rawlings 2016-5-10 1780 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. near Dennis Martin site. 73 Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 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
  JROH5892  Euphorbia oblongata Ann Lambrecht 2008-9-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; about 3m uphill to the west from Bear Creek Crossing, at the Preserve boundary Comment
  JROH531  Eurybia radulina John Rawlings 2011-10-18 1089 San Mateo Jasper Ridge Biological Preserve, Stanford University. SW end of Road C bridge over San Francisquito Creek. 88 Comment
  CAS-BOT-BC239710  Fabaceae W. R. Dudley 1894-3-26 s.n. San Mateo Reservoir, San Mateo Comment
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5174  Festuca arundinacea John Rawlings 2009-5-13 1030 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 9 in Buckeye Alley. 135 Comment
  JROH5473  Festuca bromoides John Hunter Thomas 1983-4-20 21536 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  JEPS18167  Festuca californica Rimo Bacigalupi with Galen Smith, L. Dempster, and T. Robbins 1956-5-15 5645 San Mateo first ridge w San Andreas Lake (on road to Pilarcitos Lake) 198 Comment
  CAS-BOT-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
  POM296651  Festuca californica var. californica Lyman Benson 1930-5-3 2100 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  CAS-BOT-BC539285  Festuca idahoensis John Rawlings; Ken Hickman 2015-6-8 1577 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH5494  Festuca myuros Herbert Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5495  Festuca myuros John H. Thomas 1967-5-12 12867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD30561  Festuca perennis Edith A. Purer 1933-8-13 5418 San Mateo Santa Clara Valley near Belmont Comment
  UC429787  Festuca roemeri LeRoy Abrams 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC279050  Festuca rubra Elizabeth McClintock; Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. Upper slopes of Firth Canyon, above Brisbane 182 Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  UCR253346  Foeniculum vulgare A. C. Sanders 2014-8-3 41231 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CHSC1548  Fragaria chiloensis G. Herrington 1930-5-1 San Mateo Moss Beach. Comment
  POM275018  Fragaria chiloensis Lyman D. Benson 1931-3-3 2622 San Mateo Moss Beach. 15 Comment
  RSA15343  Fragaria chiloensis Carl B. Wolf 1927-1-29 156 San Mateo Pebble Beach, along bluffs near Beach Comment
  UC203052  Fragaria chiloensis A. D. E. Elmer Apr 1903 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437030  Fragaria chiloensis W. R. Dudley 1894-5-24 s.n. San Mateo Near Pebble Beach, Pescadero, Santa Cruz Peninsula Comment
  UCD113190  Fragaria chiloensis Everett H. Everson 1951-4-28 40 San Mateo 2.2 miles south of Pescadero, on Highway 1. Comment
  CAS-BOT-BC457521  Fragaria vesca subsp. californica C. F. Leitholdt 1893-6-2 s.n. San Mateo Between Woodside and Kings Mountain, Santa Cruz Pennisula Comment
  CAS-BOT-BC457522  Fragaria vesca subsp. californica Le Roy Abrams 1898-3-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC457524  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo along stream at April Brook, San Bruno Mountain Comment
  CAS-BOT-BC457526  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mountain Comment
  CAS-BOT-BC166910  Frangula californica Peter Rubtzoff 1975-10-24 8428 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). Comment
  CAS-BOT-BC52678  Frangula californica subsp. californica Margaret A. Barry 1937-9-24 221 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  JROH3537  Frangula californica subsp. californica John H. Thomas 1968-5-22 14459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53600  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC53602  Frangula californica subsp. tomentella Alice Eastwood 1922-5-30 11333 San Mateo Crystal Springs lakes Comment
  OBI75351  Frankenia salina Lewis S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  CAS-BOT-BC223555  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  CAS-BOT-BC130138  Fritillaria affinis Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  JROH4684  Fritillaria affinis John H. Thomas 1971-5-30 15973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  RSA278613  Fritillaria affinis Lyman Benson 1935-5-5 6528 San Mateo Lake Searsville 152 Comment
  SJSU14166  Fritillaria biflora H. R. Himes 1989-3-17 San Mateo S end of Buri Buri Ridge on W side of Hwy 280 Comment
  JEPS100605  Fritillaria biflora var. ineziana Dean W. Taylor 1995-3-14 14763 San Mateo W of Hillsborough (Buri Buri Ridge; W of Skyline Blvd.; San Francisco Fish and Game Refuge, San Francisco Water Department lands) 152 Comment
  RSA13540  Fritillaria liliacea H. E. Parks, S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes Comment
  SEINET3557637 Image available Fritillaria liliacea Lewis S. Rose 1933-4-2 22049 San Mateo Redwood City. Comment
  UC535103  Fritillaria liliacea H. E. and S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes 152 Comment
  SEINET12044983  Fritillaria liliacea L. S. Rose 1933-1 33049 San Mateo Redwood City Comment
  RSA0031337  Fumaria Peter Rubtzoff, B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  JROH3102  Fumaria capreolata Ann Lambrecht 2002-5-22 3 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, below Dennis Martin marker Comment
  UCD95125  Fumaria officinalis A. P. N. 1960-3-11 517 San Mateo Highway 1, south of Montara. Comment
  JROH3784  Galium californicum subsp. californicum James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS35285  Galium murale John H. Thomas 1961-4-29 9177 San Mateo about 5 mi sw Palo Alto; Jasper Ridge Biological Experimental Area, Jasper Ridge Comment
  JROH3785  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3810  Galium porrigens var. porrigens John H. Thomas 1968-3-17 14185 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3814  Galium porrigens var. porrigens John Hunter Thomas 1983-4-28 21782 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1143094  Galium porrigens var. porrigens H. S. Yates 1935-2-3 509 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC28243  Galium triflorum Kellogg 1870-1 San Mateo Comment
  JROH791  Gamochaeta ustulata John H. Thomas 1977-5-14 18608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH795  Gamochaeta ustulata John Hunter Thomas 1981-5-8 20550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH798  Gamochaeta ustulata John Hunter Thomas 1983-5-23 22239 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing 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
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  RSA218010  Gamochaeta ustulata Phillip Wheeler 1965-5-12 s.n. San Mateo Pig Ranch Ravine; San Bruno Mountains. Comment
  CAS-BOT-BC194556  Garrya elliptica Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo In old quarry in Colma Canyon Comment
  CAS-BOT-BC194560  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  SEINET12137148  Garrya elliptica Unknown 1930-1 7312 San Mateo on road to Los Francos Woods Comment
  CDA19877  Gastridium phleoides L. Kuwahara 2002-5-17 PDR P 120137 San Mateo San Francisco Bay Area; Growing from rock used to resurface roads on watershed property. 0 Comment
  JROH1999  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2018  Genista monspessulana John Hunter Thomas 1987-4-30 24213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB11484  Genista monspessulana Olson, Jim 1962-4-15 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  UC202809  Geranium dissectum A. D. E. Elmer Jun 1903 4730 San Mateo San Mateo Comment
  UCD164385  Geranium dissectum Peter Rubtzoff 1977-6-7 9028 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCR279851  Geranium dissectum Peter Rubtzoff 1976-5-22 8546 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA0028487  Geranium dissectum D. D. Keck 1932-5-6 1475 San Mateo Millbrae Highlands Comment
  JROH2628  Geranium molle John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166729  Geranium retrorsum Peter Rubtzoff 1975-10-4 8418 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. Comment
  JROH3151  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3157  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1980-4-24 19899 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  CAS-BOT-BC303687  Glebionis coronaria Walter & Irja Knight 1967-6-6 2071 San Mateo San Bruno Mt. Point San Bruno Comment
  JROH2023  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  POM55189  Gnaphalium californicum A. D. E. Elmer 1903-06 4291 San Mateo Crystal Springs Lake. Comment
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  POM261103  Gnaphalium chilense L. R. Abrams, I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point. Comment
  RSA184920  Gnaphalium chilense L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mountain 122 Comment
  RSA91713  Gnaphalium ramosissimum F. W. Peirson 1925-9-13 6426 San Mateo Rockaway beach Comment
  CAS-BOT-BC302083  Grindelia Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. On ridge between Firth Canron [Canyon] & Brisbane Ravine, uphill water tank 152 Comment
  JROH812  Grindelia camporum H. J. Dengler 1972-10-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above kingfisher nesting site Comment
  CAS-BOT-BC304502  Grindelia hirsutula Roxana Stinchfield 1915-9-19 252 San Mateo Santa Cruz Mountain Peninsula. Palo Alto Comment
  CAS-BOT-BC304503  Grindelia hirsutula Le Roy Abrams 1901-9-1 2221 San Mateo Cooleys Landing Comment
  CAS-BOT-BC304515  Grindelia hirsutula Walter Knight 1963-11-8 389 San Mateo San Bruno Mt. Along Bayshore highway north of So. San Francisco Comment
  CAS-BOT-BC304523  Grindelia hirsutula H. E. McMinn 1922-6-22 252 San Mateo Near Half Moon Bay (?). Coast road to Half Moon Bay Comment
  CAS-BOT-BC304526  Grindelia hirsutula Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  POM203263  Grindelia hirsutula J. T. Howell 1933-5-26 11348 San Mateo Crystal Springs Lake. Comment
  SEINET3146830  Grindelia hirsutula L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SJSU2215  Grindelia hirsutula W. P. Merry 1959-5-23 69 San Mateo beside Alpine Rd 7 mi W of Hwy 5 (Skyline Blvd.), Santa Cruz Mts Comment
  UC1599358  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of mt.); San Bruno Mt. 335 Comment
  CAS-BOT-BC304539  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1939-7-9 7440 San Mateo Skyline Blvd. east of La Honda Comment
  CAS-BOT-BC304547  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1939-7-9 7437 San Mateo Hills sw. of Daly City Comment
  JROH820  Grindelia hirsutula John Hunter Thomas 1980-5-8 19941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10614592 Image available Grindelia hirsutula Wilhelm N. Suksdorf 1913-6-23 Suksdorf 279 San Mateo Crystal Springs Lake. Comment
  SEINET5709422 Image available Grindelia hirsutula var. hirsutula Delzie Demaree 1933-1 10424 San Mateo Spring Valley road. Comment
  CDA6166  Grindelia stricta var. angustifolia T. C. Fuller 1968-9-25 17641 San Mateo North of road, west end of Dumbarton Bridge, Menlo Park. 0 Comment
  SJSU15765  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 a San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  POM204326  Grindelia stricta var. platyphylla I. L. Wiggins 1929-7-4 3799 San Mateo Pescadero Beach Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  UC137310  Guillenia lasiophylla C. F. Baker 1902-4-6 459 San Mateo Crystal Springs Lake Comment
  JROH833  Helenium puberulum John H. Thomas 1970-7-5 15658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM54261  Helenium puberulum A. D. E. Elmer 1903-07 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309535  Helenium puberulum W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Peninsula. By San Francisquito Creek near St. Michaels Church 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
  CAS-BOT-BC224050  Helianthemum scoparium Fred Hemphill 1973-5-14 805 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  UC1069463  Helianthus californicus G. E. Sindel 1935-8-27 341 San Mateo 2 miles S. of Crystal Springs Lake; Santa Cruz Quadrangle Comment
  SJSU8350  Helianthus californicus J. L. Bonora 1963-10-11 San Mateo Redwood City Recreationn Center, Redwood City Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  JROH1170  Helminthotheca echioides John Hunter Thomas 1977-6-16 18764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC453466  Hemitomes congestum R. S. Ferris 1923-5-26 3787 San Mateo Chris Iverson Trail, Butano Ridge Comment
  POM284517  Hemizonia congesta Lyman Benson 1934-7-29 6107 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC313459  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1935-9-21 35652 San Mateo Redwood City Comment
  UC193423  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (from along road n of creek and up side of hill to n); San Mateo Creek Comment
  SD30842  Hemizonia congesta subsp. luzulifolia Edith A. Purer 1933-8-4 5398 San Mateo Along roadsides of Bayshore Highway. Comment
  SD5611  Hemizonia congesta subsp. luzulifolia Ulysses S. Grant IV 1925-9-2 San Mateo Burlingame Comment
  UCR66751  Hemizonia corymbosa Edith A. Purer 1933-7-27 5339 San Mateo Central Coast, Pigeon Point 15 Comment
  POM360313  Hemizonia luzulifolia D. D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake. Comment
  RSA81560  Hemizonia luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway, between lakes, Crystal Springs Reservoir. Comment
  SEINET11848430  Hemizonia luzulifolia E. A. Purer 1933-1 5398 San Mateo Bayshore Highway Comment
  CDA7809  Hemizonia parryi M. A. Mello 1961-10-3 San Mateo Marsh & Beffa Ranch, Half Moon Bay. 0 Comment
  SEINET8734814 Image available Hemizonia pungens L. S. Rose 1941-1 41463 San Mateo along the Bayshore Boulevard, San Mateo 3 Comment
  JROH879  Hesperevax sparsiflora var. sparsiflora R. R. Hichborn 1920-4-12 67 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH893  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-25 20643 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4234  Hesperocnide tenella John Hunter Thomas 1992-4-23 25149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  SBBG28494  Hesperocyparis abramsiana var. abramsiana H. A. Dutton -Sep-1949 San Mateo North Fk of Butano Crk (common corner of Section 11 and 12 and 13 and 14, range 4W) Comment
  UC1219880  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo road bank and outcropping just n dam on San Mateo Creek 121 Comment
  JROH2931  Hesperolinon micranthum John H. Thomas 1975-5-26 17899 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2937  Hesperolinon micranthum John Hunter Thomas 1986-6-9 24091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18376  Hesperolinon micranthum Carl B. Wolf 1927-7-1 532 San Mateo Above Emerald Lake, back of Redwood City. 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
  CAS-BOT-BC148472  Heteromeles arbutifolia Cherie Wetzel 1969-7-8 919 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  UC481555  Heteromeles arbutifolia H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  CAS-BOT-BC310272  Heterotheca grandiflora Philip Wheeler 1966-10-16 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  RSA184913  Heterotheca sessiliflora subsp. echioides L. S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain. 366 Comment
  JROH3884  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420900  Heuchera micrantha var. erubescens Josephine D. Randall 1907-7-7 s.n. San Mateo Kings Mt Comment
  CAS-BOT-BC424376  Heuchera micrantha var. hartwegii John H. Thomas 1967-5-7 12837 San Mateo Near intersection of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero. 91 Comment
  RSA0063144  Heuchera micrantha var. hartwegii A. D. E. Elmer 1903-07 4762 San Mateo Pilarcitos Stone Dam. Comment
  CAS-BOT-BC424428  Heuchera pilosissima Ira L. Wiggins 1925-5-24 1742 San Mateo Along county road from Pescadero to Pebble Beach just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC319638  Hieracium albiflorum Josephine D. Randall 1907-6-29 81 San Mateo Kings Mt. Road, Santa Cruz Peninsula Comment
  JROH910  Hieracium albiflorum John H. Thomas 1964-11-29 10545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120374  Hierochloe occidentalis Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch, Santa Cruz Mountains Comment
  RSA187345  Hierochloe occidentalis John H. Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  UC1132086  Hierochloe occidentalis Beryl Schreiber 1939-4-3 2609 San Mateo Pescadero-La Honda road 1 mi s La Honda; Santa Cruz Quadrangle 152 Comment
  UC75024  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo w side of mountain King's Mountain Comment
  UC822103  Hierochloe occidentalis L. R. Abrams 1904-3-7 San Mateo Bear Gulch Santa Cruz Mountain Peninsula Comment
  JROH5577  Hirschfeldia incana John Rawlings 2012-7-9 1203 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  CAS-BOT-BC55437  Hirschfeldia incana Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountains. Colma Canyon. Comment
  CAS-BOT-BC289250  Holcus lanatus Elizabeth McClintock 1974-11-8 s.n. San Mateo North side of Guadalupe Parkway in the saddle, San Bruno Mountain Comment
  JROH5206  Holcus lanatus John H. Thomas 1967-5-31 12929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5217  Holcus lanatus John Hunter Thomas 1989-5-30 24756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA121231  Holcus lanatus N. K. Carlson 1935-7-3 113 San Mateo 3 miles S of Bellvale. 91 Comment
  CAS-BOT-BC389678  Holodiscus discolor Mary Wicksten 1968-7-19 s.n. San Mateo Creek trail near Sequoia Flat Road - Memorial Park Comment
  LA207940  Holodiscus discolor David D. Keck; 1932-6-1 1795 San Mateo Santa Cruz Mountains, Above Searsville Lake, on road between Woodside and Skyline Blvd Comment
  RSA101035  Holodiscus discolor G. Oberlander 1949-5-21 183 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. 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
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  RSA181232  Hordeum brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UCD85382  Hordeum brachyantherum subsp. brachyantherum August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  JROH5230  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-5-19 20607 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5235  Hordeum marinum subsp. gussoneanum John H. Thomas 1955-5-6 4982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes. Comment
  JROH5248  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1987-5-19 24300 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289397  Hordeum murinum subsp. glaucum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific righ-of-way between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC289457  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz 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-BC271351  Hordeum vulgare John H. Thomas 1969-4-24 14922 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC271352  Hordeum vulgare John H. Thomas 1971-4-25 15793 San Mateo Intersection of Interstate 280 and Sand Hill Road behind Stanford Univ. Campus Comment
  CAS-BOT-BC271353  Hordeum vulgare J. H. Thomas 1962-5-12 9862 San Mateo Franklin Point, about sea level Comment
  CAS-BOT-BC271354  Hordeum vulgare Fred Hemphill 1973-4-15 671 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
  RSA523364  Horkelia californica G. H. True 1936-6-14 508 San Mateo Canyon S of Salada Beach. 305 Comment
  CAS-BOT-BC536148  Horkelia californica Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo Below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC536153  Horkelia californica Lewis S. Rose 1966-8-20 66086 San Mateo Head of Colma Canyon, San Bruno Mountain 205 Comment
  JROH3703  Horkelia californica var. californica John Rawlings 2013-5-21 1163 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along short lateral from Trail 12 to old quarry. 109 Comment
  CAS-BOT-BC532057  Horkelia californica var. frondosa W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC143921  Horkelia cuneata var. sericea Phillip C. Wheeler 1965-5-11 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC143923  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  CAS-BOT-BC143924  Horkelia cuneata var. sericea A. D. E. Elmer 1903-4-1 5036 San Mateo Cemeteries Comment
  UC306530  Hydrocotyle verticillata A. D. E. Elmer July, 1903 4960 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC400965  Hypericum anagalloides Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountains. North facing slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC401210  Hypericum perforatum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Saddle Area Comment
  CAS-BOT-BC311389  Hypochaeris glabra Javier Penalosa 1963-3-30 2721 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC311399  Hypochaeris glabra John Thomas Howell 1926-4-24 1926 San Mateo Daly City Comment
  CAS-BOT-BC311482  Hypochaeris radicata Louis F. Pitelka 1973-4-15 650 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC311492  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH934  Hypochaeris radicata John Hunter Thomas 1981-10-25 20775 San Mateo Jasper Ridge Biological Preserve, Stanford University; on causeway Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  CAS-BOT-BC311491  Hypochaeris radicata E. N. Crane 1915-5-1 s.n. San Mateo Burlingame Comment
  CHSC90622  Iris douglasiana Diane Mastalir 1988-3-27 6 San Mateo Hillside 6.7 mi s on hwy 1 from jcn hwy 1 and hwy 92, 2.3 mi e on Pescadero rd. 30 Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  POM168922  Iris douglasiana C. F. Baker 1902-3-22 343 San Mateo Crystal Springs Lake Comment
  RSA152265  Iris douglasiana John H. Thomas 1961-5-7 9304 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  SEINET7097928  Iris douglasiana A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SEINET12049523  Iris douglasiana D. D. Keck 1932-1 1486 San Mateo just W of Millbrae Highlands 120 Comment
  OBI2898  Iris longipetala Lewis S. Rose 1968-3-26 68009 San Mateo South base of San Bruno Mts, South San Francisco 30 Comment
  JROH4427  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake Comment
  CAS-BOT-BC57731  Isoetes howellii J. I. McMurphy 1906-5-19 s.n. San Mateo Coal Mine Ridge Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  UCD49902  Isolepis cernua Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point, San Mateo County. Comment
  SEINET5716637 Image available Isolepis cernua Shirley C. Tucker 1954-1 3796 San Mateo On sea cliffs, 17 mi. S of San Francisco.; Moss Beach Comment
  SEINET7589110 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  JEPS15532  Jaumea carnosa G. Thomas Robbins 1956-8-18 3738 San Mateo mouth of Pomponio Creek (at Pacific Ocean) Comment
  UC1192238  Jaumea carnosa Malcolm A. Nobs and S. Galen Smith 1949-8-26 1598 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC101874  Juglans J. H. Thomas 1954-4-21 3943 San Mateo San Francisquito Creek near SPRR tracks between Palo Alto and Menlo Park Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 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
  CAS-BOT-BC173842  Juncus balticus Peter Rubtzoff 1977-5-15 9020 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCSC007263  Juncus lescurii Randall Morgan 1987-4-29 s.n. San Mateo Ravine in 1st big gorge north of Comment
  JROH4495  Juncus occidentalis John Hunter Thomas 1987-5-26 24314 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6313  Juncus occidentalis D. D. Keck 1932-5-6 1468 San Mateo Belmont. Comment
  CAS-BOT-BC173697  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  UC1101090  Juncus patens Malcolm A. Nobs and S. Galen Smith 1949-8-26 1587 San Mateo about 1 mi s Half Moon Bay Comment
  UC1601846  Juncus patens J. Burtt Davy 1893-6-22 760 San Mateo Lake Pilarcitos Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC210078  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9563 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4518  Juncus xiphioides John Hunter Thomas 1979-5-18 19557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4046  Kickxia spuria John Hunter Thomas 1981-9-24 20753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5267  Koeleria macrantha John H. Thomas 1967-5-12 12868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA582055  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  UCD85838  Koeleria macrantha P. B. Kennedy 1916-5-7 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC272321  Lachnagrostis filiformis Peter H. Raven 1950-6-3 2272 San Mateo San Andreas Lake 121 Comment
  JROH948  Lactuca saligna John Hunter Thomas 1983-7-20 22904 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH946  Lactuca saligna John H. Thomas 1976-10-16 18415 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  CAS-BOT-BC340703  Lactuca virosa John Thomas Howell 1954-9-8 30108 San Mateo Skyline Blvd. at San Andreas Lake, 2 miles west of San Bruno Comment
  CAS-BOT-BC340704  Lactuca virosa Ira L. Wiggins 1979-8-26 22244 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  UC1069701  Lagophylla ramosissima N. K. Carlson 1935-6-21 78 San Mateo ridge between Oil and Slate Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC341625  Lagophylla ramosissima W. R. Dudley 1905-9-23 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine road, Black Mountain Comment
  CAS-BOT-BC341630  Lagophylla ramosissima V. F. Hesse 1962-6-26 3153 San Mateo Alpine road, 2.6 miles west of Highway 5 457 Comment
  JROH969  Lagophylla ramosissima Carol Zabel, Ann Lambrecht, John Rawlings 2004-8-25 0053 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD146012  Lapsana communis G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 A San Mateo Pescadero Creek Watershed; Pescadero Road just north of Loma Mar. 106 Comment
  CAS-BOT-BC337895  Lasthenia Daniel Cohen 1953-5-9 70 San Mateo At Pescadero Comment
  CAS-BOT-BC339079  Lasthenia californica A. A. Heller 1907-4-25 8465 San Mateo San Bruno Hills Comment
  POM288356  Lasthenia californica Lyman Benson 1931-3-15 2645 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  CAS-BOT-BC339057  Lasthenia californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd w. of San Mateo 182 Comment
  RSA51348  Lasthenia californica Peter H. Raven 1950-4-30 1952 San Mateo Montara. 15 Comment
  UC202790  Lasthenia californica subsp. californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC324422  Lasthenia californica subsp. macrantha J. H. Thomas 1949-6-4 582 San Mateo Along coast, 1.4 miles south of road from coast to Pescadero Comment
  CAS-BOT-BC324423  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  CAS-BOT-BC324424  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC324426  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pescadero - Pebble Beach Comment
  CAS-BOT-BC355545  Lasthenia glabrata var. glabrata Roxana S. Ferris 1927-4-28 6866 San Mateo Redwood City Comment
  CAS-BOT-BC368189  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara 15 Comment
  JEPS35423  Lasthenia minor W. L. Jepson 1921-4-3 9112 San Mateo near Colma; Colma Canyon Comment
  CHSC57080  Lathyrus littoralis Steven Triano 1988-5-24 207 San Mateo Coastal sand dunes w of Hwy. 1 ca 0.2 mi n of Pescadero Road. 9 Comment
  CDA27138  Lathyrus sphaericus Wm. Davis 1969-5-29 San Mateo Peters & Wilson Nursery, Millbrae. 0 Comment
  UC625422  Lathyrus tingitanus L. R. Abrams and I. L. Wiggins 1939-6-3 421 San Mateo 3-4 mi e San Gregorio (on La Honda road) 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
  RSA153481  Lathyrus vestitus subsp. vestitus John H. Thomas 1961-5-14 9362 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  RSA176925  Lathyrus vestitus subsp. vestitus John H. Thomas 1961-5-7 9287 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA120413  Lathyrus vestitus subsp. vestitus Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  JROH2039  Lathyrus vestitus var. vestitus John Hunter Thomas 1985-4-11 23518 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCR122978  Lavatera cretica George K. Helmkamp, E. A. Helmkamp 2001-6-2 6799 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
  RSA434911  Lavatera cretica J. Doty 1969-3-24 580 San Mateo North side of Embarcadero Rd, just west of western boundary of Bysbee Marshlands Wildlife Preserve; Menlo Park. 2 Comment
  CAS-BOT-BC323159  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323177  Layia chrysanthemoides C. F. Baker no date on label 1894 San Mateo San Bruno Hills Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC323183  Layia chrysanthemoides Donald A. Johansen 1933-5-27 803 San Mateo Along Skyline Boulevard at junction of side road leading to Burlingame Comment
  POM298220  Layia chrysanthemoides D. D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC321066  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Crystal Springs Lake Comment
  UC30645  Layia gaillardioides J. Burtt Davy 1895-4-20 1081 San Mateo San Mateo Creek Comment
  UC913051  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1. 5 mi ne of La Honda; Santa Cruz Mountains 213 Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321100  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda (5 mi SW of Skyline Blvd) Comment
  UC30641  Layia gaillardioides Ivar Tidestrom 1894-5-1 San Mateo Comment
  UC89225  Layia gaillardioides Katharine Brandegee 1905-6-20 San Mateo banks a few miles from San Mateo Comment
  CAS-BOT-BC327461  Layia hieracioides Fred Hemphill 1973-4-22 729 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  CAS-BOT-BC327462  Layia hieracioides J. H. Thomas 1956-5-2 5713 A San Mateo Stevens Creek Reservoir. About 6.5 miles S of Mountain View. 152 Comment
  CAS-BOT-BC327464  Layia hieracioides John Thomas Howell 1944-6-11 19594 San Mateo 1.5 miles N of Felton Comment
  CAS-BOT-BC327466  Layia hieracioides John H. Thomas 1950-4-9 1491 San Mateo About 2--3 miles W of Santa Cruz. Comment
  CAS-BOT-BC327478  Layia hieracioides Walter Knight; Irja Knight 1963-7-5 s.n. San Mateo San Bruno Mountain; Dairy Ravine across road from KQED radio tower. Comment
  CAS-BOT-BC327509  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  RSA21999  Layia hieracioides J. T. Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  RSA502396  Layia hieracioides D. W. Taylor 1989-4-18 10215 San Mateo Ridgetop between Ox Hill and Scarper Peak. 473 Comment
  JEPS18168  Layia platyglossa Rimo Bacigalupi with Dempster, Robbins and Galen Smith 1956-5-15 5646 San Mateo about center of Montara Mountain 487 Comment
  JEPS90940  Layia platyglossa Dean W. Taylor 1989-4-18 10221 San Mateo ridgetop 0.4 mi n of Scarper Peak (Santa Cruz Mountains); Santa Cruz Mountains 502 Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1070  Layia platyglossa C. W. Sharsmith 1951-4-6 5827 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  UCSB18707  Layia platyglossa Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC382215  Layia platyglossa David D. Keck 1933-5-11 2305 San Mateo Skyline Blvd., east of Salada, northern San Mateo County Comment
  CAS-BOT-BC382223  Layia platyglossa Vesta F. Hesse 1952-5-12 938 San Mateo Pigeon Point 15 Comment
  JROH997  Layia platyglossa John H. Thomas 1974-4-13 17153 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine, top of ridge Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  CAS-BOT-BC527268  Lemna minuta W. Knight; I. Knight 1966-10-4 2039 San Mateo Crocker Hills marsh between Geneva and Guadalupe Parkway, San Bruno Mountain Comment
  CAS-BOT-BC527271  Lemna minuta W. R. Dudley 1909-10-4 s.n. San Mateo W. twin pond near Mussel Rock, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  CAS-BOT-BC527274  Lemna minuta Roxana S. Ferris 1920-10-1 2100 San Mateo 1st mud lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC221523  Lepechinia calycina Walter Knight; Irja Knight 1964-5-19 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC221539  Lepechinia calycina Alice Eastwood 1912-6-10 338 San Mateo Crystal Springs Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC89706  Lepidium latifolium John Thomas Howell 1978-7-18 53189 San Mateo At Airport Sheraton, Airport Boulevard, Burlingame. Comment
  JROH1539  Lepidium nitidum Daniel Cohen 1953-4-11 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  CAS-BOT-BC12751  Lepidium oxycarpum Le Roy Abrams 1902-5-16 2277 San Mateo Cooley's Landing. Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12950  Lepidium strictum Walter Knight; Irja Knight 1965-5-16 1201 San Mateo San Bruno Mountains. Crocker Avenue. Comment
  CAS-BOT-BC12952  Lepidium strictum George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve. On northern Cahill Ridge. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  CAS-BOT-BC226600  Leptosiphon ambiguus J. H. Thomas 1949-4-1 214 San Mateo West of Redwood City Comment
  SJSU1074  Leptosiphon ambiguus C. W. Sharsmith 1951-4-6 5824 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA6298  Leptosiphon androsaceus D. D. Keck 1932-5-6 1481 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  JROH3181  Leptosiphon bicolor John Rawlings, Ann Lambrecht 2013-4-30 1168 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the verge of Rd B 75 Comment
  CAS-BOT-BC226730  Leptosiphon latisectus W. R. Dudley 1900-4-4 s.n. San Mateo Hills west of San Bruno Station Comment
  RSA187442  Leptosiphon liniflorus James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  JROH3187  Leptosiphon parviflorus Daniel Cohen 1953-4-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; near top of Jasper Ridge Comment
  CAS-BOT-BC123030  Lessingia arachnoidea Charles Fuller Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC324061  Lessingia arachnoidea George Oberlander 1949-8-20 366 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC324062  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake 91 Comment
  CAS-BOT-BC324063  Lessingia arachnoidea John Thomas Howell 1926-10-9 2220 A San Mateo Near Crystal Springs Lake 91 Comment
  LA47382  Lessingia arachnoidea L. S. Rose; 1941-9-6 41434 San Mateo San Mateo Canyon 90.0 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
  SJSU15850  Lessingia arachnoidea John Rawlings, Ken Hickman 2015-6-8 1578 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
  UC1026397  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo slopes e Crystal Springs Lake Comment
  JROH1008  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1025  Lessingia glandulifera var. glandulifera John Hunter Thomas 1986-6-9 24095 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324177  Lessingia hololeuca Ned Cahill 1974-8-26 370 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CAS-BOT-BC324183  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  JEPS88020  Lessingia hololeuca S. Markos, Noel Johnson 1996-9-17 147 San Mateo Docent Center, Jasper Ridge; Jasper Ridge Biological Preserve Comment
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Oct 15 2013
  JROH5723  Lessingia hololeuca John Rawlings 2015-9-23 1646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 145 Comment
  RSA210919  Lessingia hololeuca Cherie Wetzel 1969-7-28 998 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC324186  Lessingia hololeuca Josephine D. Randall 1907-7-15 s.n. San Mateo Near woodside, Santa Cruz Peninsula Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon Comment
  RSA176749  Lessingia tenuis John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  JROH5841  Leucanthemum maximum Ann Lambrecht 2009-7-22 35 San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  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
  CAS-BOT-BC273565  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo San Mateo Comment
  CAS-BOT-BC272324  Leymus mollis W. R. Bentley 1957-5-11 82 San Mateo Along State Highway #1 about 2 miles south of Pescadero Comment
  CAS-BOT-BC272189  Leymus triticoides John H. Thomas 1960-6-25 8799 San Mateo Along or near a small creek running into Redwood slough between El Camino Real and railroad tracks near Maple Street, Redwood City 7 Comment
  CAS-BOT-BC436528  Ligusticum apiifolium A. A. Heller 1907-4-20 8456 San Mateo San Bruno Hills Comment
  JROH2984  Ligustrum lucidum Ann Lambrecht, Paul Heiple 2008-1-9 39 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Trail c Comment
  UC114028  Lilaea scilloides Katharine Brandegee Jun 1905 San Mateo Colma Comment
  CAS-BOT-BC389724  Lilium pardalinum M. K. Wicksten 1972-6-30 39 San Mateo Unspecified Comment
  UCD169374  Limnanthes macounii T. W. Henrich 2004-4-21 s.n. San Mateo Moss Beach. Adjacent to Hwy 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property. Comment
  CDA36723  Limonium binervosum Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  POM128509  Limonium californicum L. R. Abrams 1901-09 2226 San Mateo Cooley Landing. Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  UC2046448  Limonium californicum Michael Perlmutter 2011-10-2 s.n. San Mateo Coyote Point Marina. County of San Mateo Department of Parks. Comment
  POM259951  Limosella acaulis I. L. Wiggins, Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UC1278836  Limosella acaulis J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  UC885935  Limosella acaulis Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UCR66506  Linanthus ambiguus L. S. Rose 1948-5-16 48115 San Mateo San Francisco Bay Region, Emerald Lake, hills west of Redwood City 152 Comment
  RSA0004836  Linanthus croceus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim. Comment
  UC202827  Linanthus liniflorus A. D. E. Elmer Jun 1903 4704 San Mateo s end Crystal Springs Lake Comment
  UC23690  Linanthus liniflorus J. Burtt Davy 1895-4-20 1071 San Mateo Crystal Springs Lake Comment
  UC729681  Linanthus parviflorus Carl B. Wolf 1929-4-24 3656 San Mateo back of Stanford University (sw end of Jasper Ridge); Jasper Ridge 152 Comment
  CDA6327  Linaria genistifolia subsp. dalmatica A. Roach 1970-12-22 San Mateo Southern Pacific Railroad tracks, 50 yards south of the east end of 14th Avenue, San Mateo. 0 Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  CDA28966  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .392 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CAS-BOT-BC430771  Lithophragma affine A. A. Heller 1907-4-25 8464 San Mateo San Bruno Hills Comment
  CAS-BOT-BC430776  Lithophragma affine Margaret A. Barry 1937-5-1 52 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC430772  Lithophragma affine George Oberlander 1950-5-21 955 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC430774  Lithophragma affine Elizabeth McClintock 1965-3-28 s.n. San Mateo Trillium Gulch, San Bruno Mountain Comment
  UCD102692  Lithophragma affine 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-BC430973  Lithophragma bolanderi Mita C. Daniel 1915-4-1 s.n. San Mateo King's Mountain Comment
  UC858160  Lithophragma heterophyllum Lewis S. Rose 1939-4-12 39062 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC60217  Lobularia maritima Robert Robertson 1954-4-14 73 San Mateo By roadside adjacent to Salicornia marsh. Northwest of Palo Alto Yacht Club. 3 Comment
  JROH735  Logfia gallica D. E. Breedlove 1971-5-31 19361 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH738  Logfia gallica John Hunter Thomas 1977-6-16 18750 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC342471  Logfia gallica George Oberlander 1950-4-16 705 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  CAS-BOT-BC342472  Logfia gallica Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC342473  Logfia gallica Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  JROH731  Logfia gallica John H. Thomas 1967-5-10 12839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH736  Logfia gallica John H. Thomas 1977-4-29 18569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283225  Lolium multiflorum John H. Thomas 1956-4-8 5630 San Mateo Near Bayshore Highway about 2 miles E of Redwood City Comment
  CAS-BOT-BC283230  Lolium multiflorum Cherie Wetzel 1969-6-20 882 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  UCSC003883  Lolium multiflorum P. Cornelius 1957-6-2 s.n. San Mateo 4 miles south of Half Moon Bay, DM Hwy 1 Hwy 1, Half Moon Bay Comment
  CAS-BOT-BC269126  Lolium perenne George Oberlander 1949-7-25 249 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JEPS17133  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 a San Mateo Redwood City Comment
  JEPS23880  Lomatium dasycarpum subsp. dasycarpum Le Roy Abrams 1902-5-11 2447 San Mateo Crystal Springs Lake Comment
  JROH261  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1967-6-1 12969 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH265  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1977-4-28 18565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH268  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1981-4-27 20504 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  CHSC65248  Lomatium dasycarpum subsp. tomentosum A. D. E. Elmer 1903-4-1 San Mateo Crystal Springs Lake. Comment
  UC306534  Lomatium utriculatum A. D. E. Elmer April, 1903 4926 San Mateo Crystal Springs Lake Comment
  JROH1660  Lonicera hispidula John Hunter Thomas 1981-5-25 20639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6423  Lonicera hispidula var. vacillans D. D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 549 Comment
  UC139415  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC306767  Lonicera involucrata var. ledebourii A. D. E. Elmer June, 1903 4272 San Mateo Lake San Andreas Comment
  CAS-BOT-BC243965  Lonicera involucrata var. ledebourii Walter Knight 1964-9-14 834 San Mateo Ridge between Peak Mt. and Highway 1 Comment
  CAS-BOT-BC198596  Lotus R. F. Hoover 1964-9-10 9290 San Mateo Devil's Slide, between Pedro Point and Montara Comment
  JEPS91401  Lotus benthamii Dean W. Taylor 1989-8-1 10412 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  SFV4289  Lotus corniculatus J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  CAS-BOT-BC389704  Lotus corniculatus L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  UC729630  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo s of Pescadero; Pigeon Pt. 30 Comment
  HSC23955  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-22 92 San Mateo Huddart Park by horse ring Comment
  UC1129419  Lupinus affinis H. S. Yates 1935-5-8 5209 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC1481350  Lupinus affinis Dunn and Brown 1946-5-15 2542 San Mateo 3 mi NE of La Honda ( on the SE side of the highway from Woodside to La Honda); San Francisco Peninsula Comment
  SEINET12154347  Lupinus albicaulis L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean, at Pigeon Pt. Lighthouse on Rt 1 Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-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
  SEINET10970192  Lupinus albifrons var. collinus Mcclintock 1963-2-16 MCCLINTOCK s.n. San Mateo Below top of mountain in vicinity of radio station. San bruno mountain Comment
  UC1129343  Lupinus arboreus A. E. Wieslander 1928-9-26 34 San Mateo 2 mi s San Gregorio (Plot #13); Santa Cruz Quad., s of San Gregorio Comment
  UC201982  Lupinus arboreus A. D. E. Elmer May, 1903 4414 San Mateo Colma Comment
  UCD106655  Lupinus arboreus June McCaskill 1954-5-8 297 San Mateo Moss Beach. Comment
  UCSB12361  Lupinus arboreus Breedlove, Dennis 1961-6-18 San Mateo 3 miles south of road to Half Moon Bay, on U.S. 5 365 Comment
  SEINET10488466  Lupinus arboreus Charles Piper Smith 1948-4-20 Smith 48112 San Mateo Hwy 1. San pedro point, s slope Comment
  RSA705042  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 5371 San Mateo Two miles south of Pigeon Point Comment
  UC75246  Lupinus bicolor C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake Comment
  UCD107185  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University. Comment
  RSA130909  Lupinus formosus var. formosus E. K. Balls 1958-7-22 23592 San Mateo Highway 5, at turn-off to San Bruno, San Bruno Hills. 213 Comment
  SEINET10961856 Image available Lupinus latifolius Charles F. Baker Baker 470 San Mateo Crystal Springs Lake. Comment
  SEINET5628414 Image available Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  RSA134073  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-7-9 s.n. San Mateo Summit of Bear Gulch Road. Comment
  JROH2121  Lupinus latifolius var. latifolius John H. Thomas 1964-4-19 10331 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville end of ridge Comment
  UC75237  Lupinus latifolius var. latifolius C. F. Baker Apr 1903 1929 San Mateo Crystal Springs Lake Comment
  JROH2127  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2143  Lupinus nanus Ann Lambrecht 2008-3-30 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; on Mine Trail Hill Comment
  RSA143002  Lupinus nanus subsp. nanus John H. Thomas 1960-4-26 8597 San Mateo Along Sand Hill Road, between Menlo Park and Searsville. 91 Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  SEINET10486141  Lupinus polycarpus William R. Dudley 1894-4-11 Dudley UMO 180410 San Mateo Near Menlo Park Reservoir. Comment
  JEPS81168  Lupinus polyphyllus Edward Lee with H. L. Mason 1935-6-16 1529 San Mateo between Ano Nuevo and Franklin Point; between Ano Nuevo and Franklin Point Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  POM11080  Lupinus succulentus A. D. E. Elmer 1903-04 5021 San Mateo Portola. Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  RSA60809  Lupinus vallicola subsp. apricus James I. McMurphy 1911-4-24 s.n. San Mateo Corner between San Francisquito and Los Trancos creeks near Stanford University. Comment
  SD60197  Lupinus vallicola subsp. apricus J. I. McMurphy 1911-4-24 San Mateo Corner between San Francisquito & Los Francos Creek near Stanford University Comment
  POM10801  Lupinus variicolor E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  SEINET10489088  Lupinus variicolor Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mtn. Exposed slopes below top of mtn. Comment
  UC201933  Lupinus variicolor Miss Harriet A. Walker 1915-4-24 3808 San Mateo in field near road to Millbrae; near road to Millbrae Comment
  JROH4523  Luzula comosa var. comosa John H. Thomas 1964-4-19 10327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam. Comment
  JROH5679  Luzula comosa var. comosa John Rawlings 2015-3-3 1315 San Mateo Jasper Ridge Biological Preserve, Stanford University; small opening off trail 8 in oak woodland. 126 Comment
  CAS-BOT-BC210034  Luzula subsessilis Peter Rubtzoff 1978-4-2 9151 San Mateo San Bruno Mtns. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon Comment
  JROH5568  Lysimachia arvensis John Rawlings 2013-4-19 1151 San Mateo Jasper Ridge Biological Preserve, Stanford University. South edge of Trail 11 in chaparral. 145 Comment
  SFV2436  Lythrum hyssopifolia J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1 about 10 miles north of Santa Cruz County line. Drainage ditch beside road. 30 Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  JROH2954  Lythrum hyssopifolia John H. Thomas 1967-6-1 12955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD103044  Lythrum hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-26 1578 San Mateo 1 mile S of Hal Moon Bay. Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  CAS-BOT-BC343900  Madia elegans L. R. Abrams; I. L. Wiggins 1930-11-13 173 A San Mateo Hillside above Crystal Springs Lake Comment
  SD38972  Madia elegans Edith A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley near Belmont. Comment
  UC463563  Madia elegans L. R. Abrams and I. L. Wiggins 1930-11-13 173 A San Mateo above Crystal Springs Lake Comment
  RSA11149  Madia elegans subsp. elegans C. B. Wolf 1929-5-17 3713 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  POM54251  Madia elegans subsp. vernalis A. D. E. Elmer 1903-05 4662 San Mateo Alpine School House. Comment
  CAS-BOT-BC344498  Madia exigua John H. Thomas 1971-5-2 15867 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1046  Madia exigua John H. Thomas 1975-5-26 17903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5660  Madia exigua John Rawlings 2014-5-23 1269 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  JROH6204  Madia exigua John Rawlings 2014-5-6 1234 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH1072  Madia gracilis D. E. Breedlove 1971-5-31 19342 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1076  Madia gracilis John Hunter Thomas 1978-5-12 19204 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  POM56191  Madia madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain. Comment
  UC483494  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo sea bluffs at Pescadero Beach Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  CAS-BOT-BC345138  Madia sativa George Oberlander 1950-6-3 1045 San Mateo San Francisco Watershed Reserve. On Sawyer Ridge Comment
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  RSA175256  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1963-6-9 32216 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC512100  Maianthemum racemosum subsp. amplexicaule Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Cystal Springs Lake above Burlingame and Millbrae Comment
  CDA33989  Maianthemum stellatum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .15 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  RSA176415  Maianthemum stellatum John H. Thomas 1964-4-19 10326 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Area below dam. Comment
  CAS-BOT-BC514161  Maianthemum stellatum W. R. Dudley 1893-2-19 s. n. San Mateo Road from La Honda to Alpine Comment
  CAS-BOT-BC514163  Maianthemum stellatum D. D. Davis 1903-3-1 s. n. San Mateo Unspecified Comment
  CAS-BOT-BC514164  Maianthemum stellatum Elmer I. Applegate 1895-4-6 709 b San Mateo Hillside above Stanford University Comment
  CAS-BOT-BC203908  Malacothamnus aboriginum Alice Eastwood; John Thomas Howell 1939-6-30 7435 San Mateo Los Trancos Creek near Stanford University Comment
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  CAS-BOT-BC206683  Malva assurgentiflora John H. Thomas 1967-5-2 12734 San Mateo Colma, near Hillside Blvd. at Cypress Lawn Cemetery Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  JROH2965  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA433884  Malvella leprosa E. A. Purer 1933-8-13 5424 San Mateo Santa Clara Valley, near Belmont. Comment
  JROH1900  Marah fabacea John H. Thomas 1961-4-29 9195 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH621  Matricaria discoidea John Hunter Thomas 1980-5-8 19953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC422686  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mountains Comment
  UC635442  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mtns Comment
  CAS-BOT-BC422677  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road San Mateo to Crystal Springs Res. Comment
  CAS-BOT-BC422683  Meconella californica Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC269477  Melica californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  CAS-BOT-BC269481  Melica californica Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  POM87694  Melica californica Le Roy Abrams 1902-5-4 2407 San Mateo Woodside. Comment
  JROH5305  Melica imperfecta John Hunter Thomas 1979-5-18 19556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack. Comment
  UCD87869  Melica imperfecta P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC264186  Melica subulata L. R. Abrams 1915-6-14 5560 San Mateo Kings Mountain Road, first bridge 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
  UCD18538  Melilotus albus Roman Gankin 1950-7-2 6 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH2195  Melilotus indicus John Hunter Thomas 1983-5-23 22240 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing 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
  UCR177714  Mentha canadensis L. S. Rose 1936-9-13 36730 San Mateo Granada 2 Comment
  JROH2808  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2825  Mentha pulegium John Hunter Thomas 1991-11-21 25106 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  CAS-BOT-BC438139  Mesembryanthemum nodiflorum W. R. O. 1973-10-10 1230 San Mateo Most stations; mobile estate project. Redwood City Comment
  JROH3908  Micranthes californica Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in an open area along Trail 2 on embankment above San Francisquito Creek Comment
  CAS-BOT-BC348570  Micropus californicus var. californicus John H. Thomas 1971-5-2 15843 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC77531  Microseris bigelovii K. L. Chambers 1984-6-14 5141 San Mateo Pescadero Beach State Park, just S of mouth of Pescadero Creek, Hwy. 1 Comment
  JROH1138  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-6 4993 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1145  Microseris douglasii subsp. douglasii John Hunter Thomas 1980-5-8 19958 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC92186  Microseris douglasii subsp. douglasii E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC349038  Microseris douglasii subsp. douglasii Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC349149  Microseris douglasii subsp. tenella Lewis S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  NY215090  Microseris leucocarpha C. F. Baker 1902-5-4 808 San Mateo Woodside Comment
  CAS-BOT-BC322718  Microseris paludosa Miss Patterson; Miss Wiltz 1907-6-1 297 San Mateo Pacific Grove, Monterey Peninsula Comment
Read comments
Jul 22 2020
  UC2044060  Microseris paludosa Neal Kramer 2005-5-14 CR 440 San Mateo POST Cloverdale Ranch. North end of the Mesa approx. 0.4 mi east of Lake Lucerne. Comment
  UC26859  Mimulus arvensis J. Burtt Davy 1895-4-20 1078 San Mateo Crystal Springs Lake Comment
  SEINET12269792  Mimulus aurantiacus L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  SEINET8208860  Mimulus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  JEPS85570  Mimulus aurantiacus var. aurantiacus Craig Dremann 1986-8-30 321 San Mateo near La Honda (Highway 84 (Woodside-La Honda Road), near mile 6.68) Comment
  JEPS87275  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1105 San Mateo 1.2 mi s Hwy. 35 (Skyline Blvd.) (along Hwy. 84 (La Honda Road)) 340 Comment
  JROH4072  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130341  Mimulus aurantiacus var. aurantiacus James I. McMurphy 1906-5-20 25 San Mateo Kings Mt., Santa Cruz Mt. Comment
  UC1063401  Mimulus aurantiacus var. aurantiacus H. S. Yates 1935-2-3 5013 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  SEINET4678016  Mimulus guttatus K. Thorne, J. Chandler 1986-7-25 4939 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach.; 0 Comment
  CAS-BOT-BC384007  Mirabilis jalapa W. Knight; I. Knight 1966-10-4 2053 San Mateo San Bruno Mountain. Near Bayshore Blvd. Comment
  SJSU12767  Moehringia macrophylla S. L. Jones 1986-4-6 85 San Mateo saddle betweem San Pedro Mt & Montara Mt, Pacifica 274 Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  SEINET10829418  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 182 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10869827 Image available Monardella villosa subsp. franciscana Adolph D. E. Elmer Elmer 4766 San Mateo Comment
  SEINET10928195  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 186 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  RSA101034  Montia fontana G. Oberlander 1950-4-16 632 San Mateo Along stream below San Andreas dam, San Francisco Watershed Reserve Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard Comment
  UC672605  Morella californica Herbert L. Mason 1927-4-23 3694 San Mateo Pescadero Creek near Bloomquist Mill Comment
  UCSC007765  Morella californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC508580  Muilla maritima Lawrence Beane 1949-3-30 150 San Mateo Above Redwood City Comment
  RSA784399  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway W of Radio Road junction. Comment
  CAS-BOT-BC101775  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo near Lake Lucerne 1 mi. no. of Pigeon Pt. 30 Comment
  CDA5318  Myriophyllum aquaticum G. D. Barbe, Tom Palmer, M. Keffer, J. Reppas 1978-11-8 2467 San Mateo Around the shores of Searsville Lake, Jasper Ridge Biological Preserve, Stanford University. 0 Comment
  RSA10397  Myriophyllum sibiricum Carl B. Wolf 1927-6-15 s.n. San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC1236536  Myriophyllum spicatum J. H. Thomas 1955-12-6 5513 San Mateo 5 and 10 feet deep at the southern end of San Andreas Lake. Comment
  CAS-BOT-BC260241  Nassella pulchra Javier Penalosa 1963-3-9 2670 San Mateo San Bruno Mountain. SE of 1314 ft. summit 381 Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1571  Nasturtium officinale John H. Thomas 1973-6-15 16830 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS82912  Navarretia heterodoxa Roy E. Buck and Randall A. Morgan 1983-6-7 336 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of small watercourse); San Francisco Watershed Reserve 137 Comment
  POM65519  Navarretia heterodoxa A. D. E. Elmer 1903-06 4282 San Mateo Crystal Springs Lake. Comment
  SEINET191641 Image available Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, Emerald Lake 120 Comment
  SEINET3696485 Image available Navarretia heterodoxa Lewis S. Rose 1934-5-27 34280 San Mateo Emerald Lake. Comment
  LA206579  Navarretia squarrosa Ira L. Wiggins; 1929-7-4 3777 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  POM65123  Navarretia squarrosa C. F. Baker 1903-6-30 3360 San Mateo Pilarcitos Comment
  UC1124144  Navarretia squarrosa G. E. Sindel 1935-7-25 310 San Mateo Lagoon, mouth of Pescadero Creek Santa Cruz Quad., Pescadero Creek 7 Comment
  UC1124145  Navarretia squarrosa G. E. Sindel 1935-7-25 317 San Mateo 2.5 mi nnw Pescadero; Santa Cruz Quad. 121 Comment
  SD3919  Navarretia squarrosa Ulysses S. Grant 1925-9-2 San Mateo Burlingame Comment
  POM65254  Nemophila menziesii var. menziesii C. F. Baker 1902-4-12 500 San Mateo La Honda. Comment
  CAS-BOT-BC219480  Nemophila parviflora John H. Thomas 1961-5-14 9374 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos. San Francisco Watershed Reserve 152 Comment
  RSA120713  Nemophila parviflora S. S. Tillett, I Sternberg 1956-6-24 535 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  SBBG41706  Nemophila parviflora J. T. Howell 1971-4-12 San Mateo Butano St Park, Santa Cruz Mtns Comment
  UC606949  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo 5 mi sw San Mateo (near Crystal Springs Lake); sw of San Mateo, near Crystal Springs Lake 121 Comment
  JROH2746  Nemophila parviflora var. parviflora John Rawlings 2007-4-1 1062 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rock outcrop in dry creek bed forming NW border of the Herb Dengler Transect. 73 Comment
  POM65250  Nemophila parviflora var. parviflora C. F. Baker 1902-4-12 509 San Mateo La Honda. Comment
  JROH2742  Nemophila parviflora var. parviflora H. R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Zoology Club shack Comment
  JROH4170  Nicotiana acuminata var. multiflora John Rawlings, Ann Lambrecht 2007-11-7 0911 San Mateo Jasper Ridge Biological Preserve, Stanford University. 115 Comment
  JROH5953  Nuttallanthus texanus D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge area, rocky point Comment
  JEPS44826  Oemleria cerasiformis W. L. Jepson 1922-3-19 9542 San Mateo Lake San Andreas 182 Comment
  JROH3715  Oemleria cerasiformis John Hunter Thomas 1985-4-25 23565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA124761  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JEPS11663  Orobanche californica subsp. californica Dr. L. M. Newlon 1919-9-7 68 San Mateo Pillar Point, northern end of Half Moon Bay. Comment
  JEPS86212  Orobanche californica subsp. californica L. R. Heckard Sep 1970 2463 San Mateo Ocean bluffs to south of South parking lot at Bean Hollow State Beach. Comment
  SEINET199760  Orobanche californica subsp. californica Herbert L. Mason 1927-7-28 3983 San Mateo Pigeon Point Comment
  UC217609  Orobanche californica subsp. californica Katharine Brandegee San Mateo San Pedro. Comment
  CAS-BOT-BC499691  Orobanche californica subsp. californica Julia McDonald 1918-7-1 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC499693  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 s.n. San Mateo Farrallone City Comment
  CAS-BOT-BC499694  Orobanche californica subsp. californica J. H. Thomas 1979-7-31 19684 San Mateo San Bruno Mountain, in northern part of county. Upper portion of Reservoir Hill, NE of Guadalupe Parkway 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-BC500319  Orobanche uniflora subsp. occidentalis L. R. Abrams 1904-4-10 s.n. San Mateo San Mateo Canyon Comment
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 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
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  RSA6295  Orthocarpus floribundus D. D. Keck 1932-5-6 1490 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  POM194754  Orthocarpus purpurascens var. latifolius D. D. Keck 1927-6-10 395 San Mateo Radio Station, Montara Point. 0 Comment
  JROH301  Osmorhiza berteroi John Hunter Thomas 1989-6-6 24767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176714  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
Read comments
Feb 15 2013
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  UC137426  Oxalis oregana C. F. B. 1902-3-18 325 San Mateo King's Mountain 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-BC318249  Packera breweri W. R. Dudley 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mt. Comment
  UC1101574  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-24 1566 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  UCSC000079  Parapholis incurva A. Hormay 1932-5-29 16 San Mateo San Bruno 0 Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4119  Pedicularis densiflora John Hunter Thomas 1985-4-22 23550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27762  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Searsville Lake 121 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
  RSA125134  Pedicularis dudleyi E. F. Sprague 1956-5-28 1701 San Mateo Portola State Park, about campground headquarters 305 Comment
Read comments
Mar 2 2010
  RSA125135  Pedicularis dudleyi E. F. Sprague 1957-5-25 1702 San Mateo Portola State Park, about campground area 305 Comment
Read comments
Mar 2 2010
  CAS-BOT-BC389702  Pediomelum californicum L. Sigal 1969-7-1 s.n. San Mateo Belmont Canyon out of Water Dog Lake Comment
  UCSC003377  Pelargonium grossularioides Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  CAS-BOT-BC207023  Pelargonium vitifolium J. H. Thomas 1949-6-4 589 San Mateo Along coast, 1.4 miles S of road leading to Pescadero. Comment
  CAS-BOT-BC207026  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  JEPS81003  Pelargonium vitifolium Edward Lee with H. L. Mason 1935-6-16 1530 San Mateo between Pigeon Point and San Gregorio Comment
  JROH96  Pellaea andromedifolia John H. Thomas 1971-4-25 15784 San Mateo Jasper Ridge Biological Preserve, Stanford University. 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-BC330497  Pentachaeta bellidiflora Ned Cahill 1974-4-19 154 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  RSA0008523  Pentachaeta bellidiflora Susan Sommers, Toni Corelli 1983-4-2 s.n. San Mateo W of middle bend in Hwy 280, S of Edgewood Road overcrossing. 122 Comment
  CAS-BOT-BC77004  Pentagramma triangularis subsp. triangularis Phillip Wheeler 1966-12-30 s.n. San Mateo San Bruno Mountains - Harold Road, Brisbane Comment
  JROH308  Perideridia kelloggii John H. Thomas 1970-7-5 15661 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3245  Persicaria amphibia John H. Thomas 1964-10-2 10510 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge. Comment
  CAS-BOT-BC413611  Persicaria amphibia Roxana S. Ferris 1920-9-3 2048 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  CAS-BOT-BC418847  Persicaria hydropiperoides Ira L. Wiggins 1985-9-28 22299 San Mateo Bed of San Francisquito Creek, N side of creek bed, just above Pop [Pope] Street bridge, Menlo Park Comment
  JROH3269  Persicaria lapathifolia Roxana S. Ferris 1924-10-6 4094 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  CAS-BOT-BC413765  Persicaria lapathifolia W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward Pilar Pt. Comment
  JROH3274  Persicaria lapathifolia John Hunter Thomas 1981-10-25 20766 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  JROH6176  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-10-3 2303 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta 103 Comment
  CAS-BOT-BC419387  Persicaria punctata Roxana S. Ferris 1945-9-25 11107 San Mateo At Pedro Point, State Highway 1 Comment
  JEPS23907  Petunia parviflora Le Roy Abrams 1902-9-2 2994 San Mateo Crystal Springs Comment
  SEINET12280043  Phacelia californica Unknown 1932-1 8996 San Mateo Between Sky Line Drive and Half Moon Bay Comment
  SEINET5566300  Phacelia californica H. S. Gentry 1931-1 102 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UCSC008146  Phacelia distans Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CDA34191  Phacelia malvifolia D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .172 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  POM289344  Phacelia malvifolia Lyman Benson 1937-6-27 8392 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  RSA21847  Phacelia malvifolia J. T. Howell 1938-5-1 13768 San Mateo Colma Canyon. Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  CHSC56636  Phalaris aquatica Steven Triano 1988-5-24 176 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH5353  Phalaris aquatica John H. Thomas 1973-6-15 16839 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204158  Phalaris californica A. D. E. Elmer June, 1903 4699 San Mateo Crystal Springs Lake Comment
  UCD88577  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  SEINET11695751  Phalaris californica Unknown 1962-6-11 6487 San Mateo 5 mi W of Belmont at junction of Ralston Avenue & Skyline Boulevard, foot of western slope of Pulgas Comment
  UC820505  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo along Bayshore Highway Redwood City Comment
  JROH5383  Phalaris paradoxa John Rawlings 2011-6-21 1074 San Mateo Jasper Ridge Biological Preserve, Stanford University; 80m west of Escobar Gate downhill from Road F on north side of ridge near the serpentine/sandstone contact 153 Comment
  RSA681616  Philadelphus lewisii Deb Annuschka 1989-6-13 239 San Mateo YBN [Yerba Buena Nursery] next to lath house. Comment
  CAS-BOT-BC131761  Phoenix dactylifera Eric Walther 1920-10-1 s.n. San Mateo Near Court House, Redwood City Comment
  SD38211  Phoradendron leucarpum subsp. tomentosum Edith A. Purer 1934-8-14 5914 San Mateo On highway, west of Stanford University campus Comment
  CAS-BOT-BC171183  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 182 Comment
  CAS-BOT-BC171184  Phoradendron serotinum subsp. tomentosum Lewis S. Rose 1930-12-14 s.n. San Mateo Woodside Comment
  JROH4287  Phoradendron serotinum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD18545  Phyla nodiflora Roman Gankin 1950-7-8 13 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  UCD138379  Phyllospadix scouleri A. Frederick 1924-10-26 s.n. San Mateo Moss Beach. Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  UC69382  Physocarpus capitatus J. Burtt Davy 1893-6-17 799 San Mateo Belmont Comment
  SD37695  Physocarpus capitatus Edith A. Purer 1933-5-9 3604 San Mateo Stevens Creek Comment
  CDA34334  Pickeringia montana Anonymous 1973-5-8 San Mateo Hwy 84, three miles W of Woodside. 0 Comment
  JROH2201  Pickeringia montana var. montana John H. Thomas 1974-5-29 17402 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Riders' shack Comment
  CAS-BOT-BC78644  Pinus halepensis Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo above Brisbane, on ridge 750 feet west of Brisbane Ravine 121 Comment
  CDA33410  Pinus radiata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .178-B San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JEPS46880  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  UC1371043  Piperia elegans Theodore F. Niehaus 1968-8-14 836 San Mateo ne slopes San Bruno Mountain Comment
  JROH4768  Piperia michaelii Toni Corelli 2002-6-24 246 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
  SEINET7876344 Image available Pittosporum tenuifolium A. T. Whittemore 2002-1 02 -002 San Mateo Garden of 418 Hillway Dr., Redwood City 98 Comment
  UC200768  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda 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-BC228151  Plagiobothrys chorisianus var. chorisianus V. F. Hesse 1959-4-16 2588 San Mateo Pigeon Point 7 Comment
  CAS-BOT-BC228152  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  CAS-BOT-BC228154  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. By road from Hayman's Ranch to San Gregorio Creek Comment
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1421  Plagiobothrys nothofulvus John H. Thomas 1967-4-20 12707 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1427  Plagiobothrys nothofulvus John H. Thomas 1975-4-5 17714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253350  Plantago coronopus A. C. Sanders 2014-8-3 41233 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  HSC16818  Plantago coronopus R. E. Jones 1966-4-4 35 San Mateo Ano Nuevo Beach Comment
  SBBG25091  Plantago coronopus D. Myrick 1966-6-11 1449 San Mateo approach to Pescadero along Pescadero Crk Comment
  JEPS41013  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo n end San Bruno Mountain 182 Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3117  Plantago erecta John Hunter Thomas 1981-4-23 20483 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
  JROH5932  Plantago erecta L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of Jasper Ridge Comment
  OBI11658  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn, North end 183 Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  SBBG51590  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards E of the jct of State Hwy 35 and 92 Comment
  JROH3134  Plantago major John Hunter Thomas 1977-6-16 18788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39917  Plantago maritima Edith A. Purer 1933-7-27 5364 San Mateo Near Pigeon Point. Comment
  CAS-BOT-BC92019  Platystemon californicus George Oberlander 1950-4-2 597 San Mateo San Francisco Watershed Reserve. Grassland about Lower Crystal Spring Lake. Comment
  RSA445724  Platystemon californicus var. californicus L. S. Rose 1937-4-24 37230 San Mateo Emerald Lake, west of Redwood City 107 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
  SEINET10931001 Image available Plectritis congesta subsp. nitida A. Arthur Heller 1907-5-28 Heller 8578 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  JROH4251  Plectritis macrocera H. J. Dengler 1971-4-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On serpentine grassland E. of Searsville Rocks in gully Comment
  NY278707  Plectritis nitida A. A. Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  POM198992  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-06 4848 San Mateo Millbrae Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  CAS-BOT-BC258902  Poa annua Peter Rubtzoff 1988-5-3 9914 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
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM87690  Poa howellii Le Roy Abrams 1901-05 1560 San Mateo Searsville -Bear Gulch Comment
  SEINET10659892  Poa pratensis Delzie Demaree 1932-5-8 Demaree 9118 San Mateo Half Moon Bay Comment
  SEINET10855247  Poa scabrella LeRoy R. Abrams Abrams 1162 San Mateo Menlo Park-reservoir. Comment
  CAS-BOT-BC173841  Poa trivialis Peter Rubtzoff 1977-6-7 9030 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC244252  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montara Point Comment
  CAS-BOT-BC244253  Poa unilateralis Walter & Irja Knight 1965-3-21 s.n. San Mateo San Bruno Mountain. E of Brisbane power lines on ridge Comment
  SDSU7050  Pogogyne serpylloides D. F Howe 1969-6-10 San Mateo 18.5 miles north of San Mateo- Santa Cruz Co. Line on #1, San Mateo Co. Comment
  UC107058  Polemonium carneum Mrs. Frances Howland 1901-3-30 San Mateo Lake Pelarcitos Comment
  JROH3219  Polygala californica Carol Zabel, Scott Lourie, Cindy Wilber 2001-6-2 43 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389685  Polygonum aviculare Jeanie Nieri 1953-2-3 23 San Mateo Growing three miles west of Hillsdale Comment
  CAS-BOT-BC414108  Polygonum aviculare subsp. aviculare Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Area in Crocker Hills adjacent to Cow Palace Comment
  JROH3259  Polygonum aviculare subsp. depressum John H. Thomas 1974-8-3 17498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC109238  Polygonum paronychia Adele Lewis Grant 1917-5-6 944 San Mateo Pebble Beach near Pescadero. Comment
  RSA10274  Polygonum paronychia H. A. Barker 1927-5-14 669 San Mateo North of Half Moon Bay. Comment
  SEINET11939135  Polygonum paronychia M. T. Doutt 1931-1 247 San Mateo Along coast S of San Francisco Comment
  UC168663  Polygonum punctatum C. F. Baker 1902-10-20 1858 San Mateo Searsville; about lake Comment
  CAS-BOT-BC76907  Polypodium californicum W. R. Dudley 1899-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula - Pescadero Creek, near Iverson's Comment
  CAS-BOT-BC384625  Polypodium californicum M. Danielson 1967-4-30 s.n. San Mateo On old road above and south of Crystal Springs Road Comment
  JEPS121479  Polypodium calirhiza Adam C. Schneider with C. Matt Guilliams 2013-2-2 1 San Mateo Crystal Springs Reservoir, 100 yards west from the intersection of Lexington Ave. and Allegheny Way, Highlands-Baywood Park, CA. Comment
  JROH5427  Polypogon interruptus John H. Thomas 1959-8-22 8085 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  UC39742  Polypogon interruptus Michener and Bioletti 1893-6-20 133 San Mateo L. Pilarcitos Comment
  CAS-BOT-BC237343  Polypogon monspeliensis Ned Cahill 1974-6-21 339 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  CAS-BOT-BC237588  Polypogon viridis George Oberlander 1950-6-3 1028 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  SJSU4367  Polypogon viridis A. J. Cortopassi 1957-5-17 8 San Mateo Canyon Rd, Burlingame Comment
  SD27443  Polystichum aculeatum Kate O. Sessions 1879-1 San Mateo La Honda Comment
  CAS-BOT-BC72222  Polystichum dudleyi W. R. Dudley 1905-6-19 s.n. San Mateo near Campon Pescadero Creek, Santa Cruz Mts. Comment
  JROH51  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  NY149446  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula: near bridge, Peters Creek, Canta Cruz Mts. 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
  CAS-BOT-BC384614  Polystichum munitum M. K. Wicksten 1991-7-8 s.n. San Mateo Huddart PRK Comment
  CAS-BOT-BC76643  Polystichum munitum Roman Gankin 1987-11-6 9885 San Mateo San Bruno Mountains - saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  CHSC30987  Potamogeton filiformis M. S. Taylor; E. Pierce 1978-7-31 1875 San Mateo Ano Nuevo State Reserve, in pond on bluff, between Hwy 1 and the Pacific Ocean, n of Santa Cruz. Comment
  POM259789  Potamogeton nodosus I. L. Wiggins, Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  UC1099818  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Sharp Park Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC454003  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  UC204845  Potamogeton pusillus var. pusillus W. R. Dudley July 1893 San Mateo Searsville Pond Comment
  CAS-BOT-BC143408  Potentilla Elizabeth McClintock 1974-11-8 s.n. San Mateo On north side of Guadalupe Parkway Comment
  CAS-BOT-BC389769  Potentilla anserina R. D. Hennessey 1964-4-26 68 San Mateo Area in which Pilarcitos Creek empties into ocean Comment
  CHSC39829  Potentilla anserina subsp. pacifica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JEPS44265  Potentilla hickmanii K. Brandegee 1905-6-20 San Mateo Moss Beach , Moss Beach (Halfmoon Bay) Comment
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. Comment
  JROH4680  Prosartes hookeri John Hunter Thomas 1991-4-25 25000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood areas near San Francisquito Creek below dam Comment
  CAS-BOT-BC517389  Prosartes smithii D. D. Davis 1903-5-1 s.n. San Mateo Santa Cruz Peninsula, near summit La Honda Road Comment
  SD38546  Prunella vulgaris Edith A. Purer 1932-7-18 4020 San Mateo Near Pigeon Point. Comment
  SEINET8907180  Prunella vulgaris subsp. lanceolata A. D. 1974-1 San Mateo Hwy. 35; ca. 4 mi. from Jct 35 & 92 610 Comment
  RSA18456  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo South of Pebble Beach near Pescadero. Comment
  UC311189  Prunus emarginata A. D. E. Elmer May, 1903 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC154507  Prunus ilicifolia Brandegee s.n. San Mateo Menlo Park Comment
  JROH3749  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Zoo shack Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
Read comments
Sep 19 2011
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  OBI16449  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald lake, W of Redwood City 91 Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC356868  Pseudognaphalium californicum Ned Cahill 1974-6-21 340 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC356872  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  JROH760  Pseudognaphalium californicum D. E. Breedlove 1971-5-31 19386 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  JROH782  Pseudognaphalium luteoalbum John Hunter Thomas 1980-11-27 20184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD135090  Pseudognaphalium luteoalbum J. D. Skoss 1948-7-25 44 San Mateo Montara. Comment
  JROH6200  Pseudognaphalium ramosissimum John Rawlings 2017-9-12 2295 San Mateo Jasper Ridge Biological Preserve, Stanford University; east bank of Bear Creek 82 Comment
  SEINET3145218  Pseudognaphalium ramosissimum L. S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  CAS-BOT-BC361569  Pseudognaphalium stramineum George Oberlander 1949-7-30 327 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA107418  Pseudotsuga menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  RSA384643  Pseudotsuga menziesii E. A. Purer 1932-7-18 s.n. San Mateo King s Mountain. Comment
  CAS-BOT-BC362019  Psilocarphus tenellus George Oberlander 1950-5-6 909 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH1175  Psilocarphus tenellus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1189  Psilocarphus tenellus John Hunter Thomas 1983-5-23 22251 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  JROH1193  Psilocarphus tenellus John Hunter Thomas 1989-5-9 24711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC72656  Pteridium aquilinum Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  JROH11  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15634 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH3289  Pterostegia drymarioides John H. Thomas 1976-4-19 18082 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to west of dam. Comment
  CDA36281  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  JROH3755  Pyracantha fortuneana John H. Thomas 1967-6-1 12975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC460836  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge Comment
  RSA0082793  Pyrola aphylla S. S. Tillett, I. Sternback 1956-6-24 532 San Mateo Middleton property, behind (n.) Portola Camp Store, just outside Portol State Park. 396 Comment
  UC306551  Pyrola picta A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  UC565407  Quercus agrifolia Chas. M. Belshaw 1936-1-25 1457 San Mateo 2.8 mi w Woodside (Kings Mountain road); South Coast Range Comment
  UCD14953  Quercus agrifolia Stephen K. Langer 1991-3-16 s.n. San Mateo California, San Mateo Co.; San Bruno Mountains, Buckeye Canyon. Comment
  UCD45065  Quercus agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W. of Redwood City hills. Alt. ca. 400ft. Comment
  UCD45079  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 40 ft. tall. Huddart Park on NE factoring slope nr. Miwok Shelter. Ca. 1200 ft. elev. San Mateo County 365 Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45583  Quercus chrysolepis John M. Tucker 1941-4-6 209 San Mateo On ridge north of Finny Creek, directly inland from Ano Nuevo Pt., San Mateo County, California. Comment
  CAS-BOT-BC85954  Quercus douglasii John Thomas Howell 1926-10-23 2230 San Mateo Sand Hill Road W of Stanford University Comment
  JROH2470  Quercus douglasii John H. Thomas 1955-5-6 5017 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CAS-BOT-BC389726  Quercus dumosa M. K. Wicksten 1971-6-15 63 San Mateo Unspecified Comment
  CAS-BOT-BC94275  Quercus durata Lewis S. Rose 1964-9-5 64068 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC94280  Quercus durata James McMurphy 1908-8-20 s.n. San Mateo near shore this side of Crystal Springs Comment
  CAS-BOT-BC94282  Quercus durata James McMurphy 1908-8-20 s.n. San Mateo this side of Crystal Springs Reservoir Comment
  UC1135557  Quercus durata G. E. Sindel 1935-8-27 338 San Mateo 3.37 mi wnw Woodside; Santa Cruz Quad. 152 Comment
  UC942919  Quercus durata Lewis S. Rose 1950-5-20 50136 San Mateo w of Redwood City; Emerald Lake Region 243 Comment
  SEINET13953377 Image available Quercus durata Lewis S. Rose 1964-1 64068 San Mateo W. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2493  Quercus durata var. durata John Hunter Thomas 1984-10-14 23484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105391  Quercus kelloggii Gertrude Anthony 1904-4-23 s.n. San Mateo Los Troncos Road (Foothills or Valley) Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  CAS-BOT-BC105394  Quercus kelloggii E. A. McGregor 1908-3-30 s.n. San Mateo Kings Mt. 365 Comment
  CAS-BOT-BC105396  Quercus kelloggii Le Roy Abrams 1898-3-1 s.n. San Mateo Woodside Comment
  HSC100107  Quercus kelloggii Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  UC311547  Quercus kelloggii A. D. E. Elmer May 1903 4520 San Mateo Searsville Lake Comment
  UCD46659  Quercus kelloggii C. M. Belshaw 1936-1-25 1463 San Mateo Kings Mountain road, 4.5 miles west of Woodside, San Mateo County. South Coast Range. Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course Comment
  CAS-BOT-BC62893  Quercus lobata Ned Cahill 1974-4-23 159 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM270142  Quercus lobata Lyman Benson 1932-8-1 4032 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  CAS-BOT-BC62889  Quercus lobata W. R. Dudley 1893-12-4 s.n. San Mateo By road Hopperville to Woodside Comment
  SBBG41440  Quercus parvula var. shrevei J. T. Howell 1971-4-12 San Mateo Butano St Park, Santa Cruz Mtns Comment
  CAS-BOT-BC134795  Quercus wislizeni Charles Piper Smith 1908-3-28 1371 San Mateo Woodside-Kings Moutain Road. Pacific slope Comment
  CDA29062  Quercus wislizeni D. G. Kelch 2009-6-9 9 .398 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC362548  Rafinesquia californica Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  RSA18515  Rafinesquia californica C. B. Wolf 1927-7-14 605 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET12086684  Ranunculus W. R. Dudley 1904-1 s.n. San Mateo Corte Madera Creek, Santa Cruz Mountain Peninsula Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  CAS-BOT-BC378548  Ranunculus californicus var. californicus Ira L. Wiggins 1941-4-17 9719 San Mateo Roadside near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  CAS-BOT-BC378530  Ranunculus californicus var. californicus Elizabeth McClintock 1965-3-28 s.n. San Mateo on grassy slope in flower garden adjacent to April Brook Comment
  POM150461  Ranunculus californicus var. cuneatus C. F. Baker 1902-4-12 504 San Mateo San Gregorio. Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  POM269212  Ranunculus hebecarpus W. R. Dudley 1894-4-11 s.n. San Mateo slope near Menlo Park Comment
  POM87782  Ranunculus hebecarpus L. R. Abrams 1901-03 s.n. San Mateo San Mateo Park Comment
  CAS-BOT-BC83429  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  RSA181388  Ranunculus muricatus James I. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC74340  Raphanus sativus Fred Hemphill 1973-3-9 642 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  JROH5871  Raphanus sativus Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  UCD115166  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  UC870785  Rhamnus californica F. A. Parton Apr 1908 San Mateo Jasper Ridge Santa Cruz Mountain Peninsula 91 Comment
  CAS-BOT-BC55893  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper Ridge, near Searsville Lake Comment
  JROH3554  Rhamnus crocea E. H. Richardson 1906-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3555  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282947  Rhamnus crocea Lyman Benson 1930-5-21 s.n. San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC55889  Rhamnus crocea R. Hoffough 1929-5-8 793 San Mateo Los Altos Hills Comment
  SEINET12210178  Rhamnus crocea J. I. McMurphy 1906-1 55 San Mateo Los Trancos Creek, Santa Cruz 183 Comment
  CAS-BOT-BC56665  Rhododendron occidentale William R. Dudley 1895-6-6 s.n. San Mateo Pescadero Cr. (near Iverson's) Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JROH2632  Ribes aureum var. gracillimum D. E. Breedlove 1971-5-31 19354 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SBBG27519  Ribes californicum L. S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  HSC20291  Ribes divaricatum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 122 Comment
  SD121787  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173085  Ribes divaricatum var. pubiflorum Elmer I. Applegate 1895-3-9 188 San Mateo Woodside Comment
  CAS-BOT-BC173480  Ribes malvaceum G. Edelbrock 1975-2-8 002 San Mateo Eastern exposure overlooking Crystal Springs Reservoir along fire road; S.F. Watershed 152 Comment
  SJSU279  Ribes malvaceum H. W. Marion 1936-3-8 San Mateo 0.25 mi E of Searsville L, near Stanford Univ Comment
  CAS-BOT-BC173469  Ribes malvaceum Walter Knight 1964-9-14 827 San Mateo Near summit Peak Mt. Comment
  JROH2663  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212837  Ribes menziesii R. Bacigalupi 1922-3-1 s.n. San Mateo Along Pescadero Creek Comment
  RSA0021754  Ribes menziesii var. leptosmum A. D. E. Elmer 1903-04 4496 San Mateo Portola. Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  JEPS121700  Ribes menziesii var. menziesii Stella Yang 2013-5-10 San Mateo Los Troncos Open Space Preserve, Franciscan Loop Trail at Los Troncos Creek crossing Comment
  UC11618  Ribes menziesii var. senile J. Burtt Davy 1895-4-20 1046 San Mateo Lake Pilarcitos Comment
  JEPS48600  Ribes sanguineum Elsa Kraeger 1926-2-21 San Mateo La Honda Comment
  CAS-BOT-BC144610  Ribes sanguineum var. glutinosum W. R. Dudley 1904-4-7 s.n. San Mateo 1/4 mile above Judge Allen's near Portola Comment
  CAS-BOT-BC144631  Ribes sanguineum var. glutinosum Lewis S. Rose 1931-1-25 s.n. San Mateo Belmont Comment
  CAS-BOT-BC144632  Ribes sanguineum var. glutinosum Alice Eastwood 1922-5-27 11326 San Mateo La Honda Comment
  CAS-BOT-BC144634  Ribes sanguineum var. glutinosum Le Roy Abrams 1901-2-1 1113 San Mateo Portola - Redwood Canyon [Canon] Comment
  CAS-BOT-BC144636  Ribes sanguineum var. glutinosum W. R. Dudley 1894-3-29 s.n. San Mateo Between Half Moon Bay and Woodside Comment
  CAS-BOT-BC144650  Ribes sanguineum var. glutinosum Ray H. Yanis 1951-4-21 53 San Mateo Searsville Lake edge 15 Comment
  SEINET12220350  Ribes sanguineum var. glutinosum W. R. Dudley 1904-1 62 San Mateo Santa Cruz Peninsula, Carte de Madera Creek, Santa Cruz Mts Comment
  CAS-BOT-BC168727  Ribes victoris Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC207160  Ricinus communis J. H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S of intersection of Skyline Blvd. and Mill brae Avenue. Comment
  SJSU15949  Rigiopappus leptocladus John Rawlings, Ken Hickman 2016-5-26 1827 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; about 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  CAS-BOT-BC363085  Rigiopappus leptocladus J. I. McMurphy 1900-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. On road between Byrne's Store and Woodside Comment
  JROH1202  Rigiopappus leptocladus Peter H. Raven 1963-5-1 18259 San Mateo Jasper Ridge Biological Preserve, Stanford University; north end of Jasper Ridge Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  UC306561  Romanzoffia californica A. D. E. Elmer May, 1903 4482 San Mateo towards San Mateo Crystal Springs Lake Comment
  SBBG29827  Romanzoffia suksdorfii W. R. Dudley 1909-4-27 San Mateo ponds between Woodside and Crystal Springs Reservoir Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 Comment
  UCR148006  Rorippa nasturtium-aquaticum Robert E. Preston 2001-5-30 1535 San Mateo c. 9 mi NNW of Boulder Creek 305 Comment
  CAS-BOT-BC147621  Rosa californica Alice Eastwood 1921-7-17 s.n. San Mateo Granada Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147624  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC725850  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  HSC23985  Rosa gymnocarpa Mary Katherine Wicksten 1971-6-24 110 San Mateo Huddart Park, near entrance Comment
  RSA246188  Rosa gymnocarpa E. K. Balls 1969-9-18 12174 San Mateo 6 miles S from jct (crossing) of Hwy 84 with Hwy 35 along the La Honda [road?]. Beside San Gregorio Creek. Comment
  JROH3760  Rosa gymnocarpa var. gymnocarpa John H. Thomas 1974-6-27 17448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  CAS-BOT-BC152830  Rubus parviflorus W. R. Dudley 1900-3-17 s.n. San Mateo North of Seal Cove - Santa Cruz Peninsula Comment
  LA37943  Rubus parviflorus Ira L. Wiggins; 1939-8-12 9296 -A San Mateo Along banks of Gazos Cr. about 5 mi. inland from coast Comment
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157108  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS121489  Rumex acetosella Adam C. Schneider with C. Matt Guilliams 2013-3-9 31 San Mateo Crystal Springs Reservoir Comment
  UCD101037  Rumex acetosella E. M. Johnston 1916-6-1 11 San Mateo Millbrae. Comment
  UCD101038  Rumex acetosella E. M. Johnston Jun and Jul 191 11 San Mateo Bay Region, Millbrae. Comment
  UCSC007776  Rumex acetosella Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3325  Rumex conglomeratus John Hunter Thomas 1977-6-16 18800 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5571  Rumex crispus John Rawlings 2013-5-21 1164 San Mateo Jasper Ridge Biological Preserve, Stanford University. In ditch on east side of Rd C uphilll from bridge across San Francisquito Creek. 98 Comment
  CAS-BOT-BC433359  Rumex crispus Ned Cahill 1974-5-3 275 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433365  Rumex crispus Margaret A. Barry 1938-6-22 169 San Mateo On Coal Mine Ridge Comment
  JROH5664  Rumex obtusifolius John Rawlings 2014-6-17 1272 San Mateo Jasper Ridge Biological Preserve, Stanford University; near intersection of Trail 1 and Trail "a" at the small seasonal drainage that crosses Trail 1. 87 Comment
  UC1215067  Rumex occidentalis V. F. Hesse 1962-7-19 3164 San Mateo between ocean and Pescadero 9 Comment
  CAS-BOT-BC433817  Rumex pulcher David D. Keck 1932-5-6 1458 San Mateo Belmont Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  SD38936  Rumex salicifolius Edith A. Purer 1933-7-27 5357 San Mateo High stabilized sand dunes, Pigeon Point Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  CAS-BOT-BC434133  Rumex transitorius Goodman 1918-7-23 s.n. San Mateo San Pedro Valley Comment
  JROH2212  Rupertia physodes John H. Thomas 1971-5-30 15955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48781  Rupertia physodes James G. Daly 1934-1 380 San Mateo at junction of La Honda Road and Skyline Boulevard Santa Cruz Mts., San Gregorio watershed Comment
  RSA169526  Ruppia cirrhosa H. E. Parks 1928-10 s.n. San Mateo Laguna Salada. Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  JEPS128160  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area. Sweeney Ridge Baquiano Trail. 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
  UC1191404  Salicornia virginica Malcolm A. Nobs and S. Galen Smith 1949-8-26 1601 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC125944  Salix X rubens George Oberlander 1950-4-16 627 San Mateo North of San Andreas Lake Comment
  UCD110944  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  JROH3849  Salix exigua var. hindsiana John Hunter Thomas 1985-4-25 23558 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway Comment
  CAS-BOT-BC107857  Salix gooddingii W. R. Dudley 1902-9-21 s.n. San Mateo Causeway over Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC104051  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 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
  JROH3880  Salix lasiandra var. lasiandra John Hunter Thomas 1985-4-25 23557 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway 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-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC107134  Salix lasiolepis David D. Keck 1932-1-24 1356 San Mateo Portola 150 Comment
  CAS-BOT-BC107136  Salix lasiolepis T. C. Zhchokke 1903-3-16 s.n. San Mateo Delta of San Francisquito Creek, near Stanford University Comment
  JROH3864  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  JROH3865  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  JROH3854  Salix lasiolepis John H. Thomas 1968-3-17 14176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5884190 Image available Salix lasiolepis L. S. Rose 1965-1 65004 San Mateo Searsville Lake. Comment
  CAS-BOT-BC124482  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1964-5-4 986 San Mateo Abandoned quarry south side of Colma Creek in Colma Canyon Comment
  CAS-BOT-BC124483  Salix lasiolepis var. lasiolepis Javier Penalosa 1963-3-30 2762 San Mateo Guadalupe Valley Comment
  CAS-BOT-BC124491  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1965-2-28 862 San Mateo Radio Road at Summer Seep, San Bruno Mt. Comment
  CAS-BOT-BC124492  Salix lasiolepis var. lasiolepis Ned Cahill 1974-7-14 358 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  SEINET3158751  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline blvd. 4 mi S Kings Mtn. Comment
  CAS-BOT-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC166961  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA788840  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 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
  UCD164608  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 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-BC176847  Salsola australis Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo Guadalupe Canyon Parkway Comment
  CAS-BOT-BC180793  Salsola soda John H. Thomas 1968-12-7 14860 San Mateo Western end of Dumbarton Bridge Comment
  CAS-BOT-BC176912  Salsola tragus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  RSA681663  Salvia brandegeei Annuschka Deb 1989-4-14 11458 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  UC1176935  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon; San Bruno Mts. 121 Comment
  UC306578  Salvia spathacea A. D. E. Elmer May 1903 4440 San Mateo Colma Comment
  UC416705  Salvia spathacea Franklin P. Nutting 1892-1 San Mateo Comment
  RSA0034073  Sambucus Peter Rubtzoff 1987-8-26 9840 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC246015  Sambucus nigra subsp. caerulea Fred Hemphill 1973-3-9 639 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC246021  Sambucus nigra subsp. caerulea Phillip C. Wheeler 1965-5-12 s.n. San Mateo Ravine at Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC246022  Sambucus nigra subsp. caerulea Margaret A. Barry 1937-6-24 188 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC246024  Sambucus nigra subsp. caerulea Daniel Cohen 1953-6-3 107 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC246026  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper Hill, Santa Cruz Peninsula Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  SBBG43415  Sambucus racemosa var. racemosa C. Bornstein 1994-6-7 San Mateo Gazos Crk Rd, 1.4 mi E of Hwy 1 30 Comment
  JROH5547  Sanicula bipinnata John Rawlings 2013-4-15 1169 San Mateo Jasper Ridge Biological Preserve, Stanford University. Southeast side of creek and about 75 meters upstream of bridge on Trail 11. 136 Comment
  UC1084385  Sanicula bipinnatifida G. Thomas Robbins 1937-4-11 91 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  RSA15309  Sanicula bipinnatifida C. B. Wolf 1927-4-3 279 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  CAS-BOT-BC539830  Sanicula crassicaulis Fred Hemphill 1973-4-22 826 San Mateo San Carlos, area N of Malabar Rd. and Melendy Dr. 243 Comment
  JROH329  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH343  Sanicula crassicaulis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM319917  Sanicula crassicaulis Barbara Shervanick 1973-4-1 817 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  RSA784607  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC8637  Sanicula serpentina Adolph Daniel Edward Elmer 1903-4-1 4498 San Mateo Portola Comment
  RSA120731  Satureja douglasii S. S. Tillett, Sternback 1956-6-24 s.n. San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA175250  Satureja douglasii Robert F. Thorne, P. Everett 1963-6-9 32244 San Mateo On top of San Bruno Mountain. 335 Comment
  RSA445298  Satureja douglasii E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  JROH350  Scandix pecten-veneris John H. Thomas 1967-5-12 12872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH362  Scandix pecten-veneris John Hunter Thomas 1986-5-1 23990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC384630  Schoenoplectus americanus R. D. Hennessey 1964-4-26 71 San Mateo The area in which Pilarcitos Creek empties into the ocean Comment
  SEINET11754563  Schoenoplectus pungens E. A. Purer 1933-1 5391 San Mateo 2 mi S of Pigeon Point Comment
  UC75027  Scirpus cernuus Dr. E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  UC840693  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  CDA19091  Scirpus maritimus J. Beall 2001-4-24 PDR 064435 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  UC1100829  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-25 1559 San Mateo marshes at Sharp Park Comment
  UC2159  Scirpus microcarpus J. Burtt Davy 1893-6-22 765 San Mateo marsh at head Lake Pilarcitos; marsh at head Lake Pilarcitos Comment
  UCD141269  Scirpus microcarpus Herbert L. Mason; Verne Grant 1946-8-28 13093 San Mateo one mile west of San Bruno between Santa Cruz and Daly City on Highway 5. Comment
  JEPS73772  Scirpus pungens William S. Cooper 1925-5-28 4 San Mateo Salada; dunes Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  CAS-BOT-BC519001  Scoliopus bigelovii C. F. Leithold 1896-2-24 s. n. San Mateo Woodside Hills Comment
  CAS-BOT-BC519002  Scoliopus bigelovii Elmer I. Applegate 1895-3-9 737 San Mateo Above Woodside Comment
  CAS-BOT-BC519003  Scoliopus bigelovii L. R. Abrams 1902-3-16 2283 San Mateo Kings Mountain Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519006  Scoliopus bigelovii W. R. Dudley 1895-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519021  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mountain Comment
  CAS-BOT-BC519022  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo King's Mountain Comment
  SEINET5570939  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  SEINET926247  Scoliopus bigelovii H. S. Gentry 1931-1 20 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  JEPS23869  Scrophularia californica J. H. Thomas 1949-10-16 1153 San Mateo just n of outlet San Gregorio Creek Comment
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  UC75032  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs lake Comment
  CAS-BOT-BC59058  Sedum spathulifolium W. R. Dudley 1909-4-27 s.n. San Mateo Pulpit Rock, San Mateo Canyon. Comment
  JROH1896  Sedum spathulifolium H. J. Dengler 1972-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of Searsville Rocks Comment
  RSA0074737  Sedum spathulifolium R. F. Thorne, P. C. Everett 1963-6-9 32245 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC363401  Senecio aronicoides Margaret Barry 1937-5-23 149 San Mateo Coal Mine Ridge Comment
  JROH1217  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  CAS-BOT-BC363402  Senecio aronicoides Kellogg No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  CAS-BOT-BC364240  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC364238  Senecio sylvaticus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  JROH1230  Senecio vulgaris John Hunter Thomas 1991-4-11 24981 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy area below dam Comment
  CAS-BOT-BC364638  Senecio vulgaris John H. Thomas 1968-12-18 14869 San Mateo About 1 mile west of Pescadero toward the coast Comment
  CAS-BOT-BC364640  Senecio vulgaris Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC85781  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Mts., Canada de Raymundo 274 Comment
  UC405205  Sequoia sempervirens unknown 1874-1-1 San Mateo 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
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  CDA2435  Setaria parviflora I. J. Campbell 1958-8-12 1015 San Mateo Redwood City. 0 Comment
  CDA43035  Setaria parviflora Eaton 2014-7-6 PDR# 010 P06220324 San Mateo Mapache Drive near Westridge Drive, Portola Valley. 0 Comment
  JROH3831  Sherardia arvensis John H. Thomas 1971-4-10 15762 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3561191 Image available Sidalcea calycosa Lewis S. Rose 1934-5-27 34281 San Mateo Emerald Lake. Comment
  POM223278  Sidalcea diploscypha L. S. Rose 1935-6-9 35211 San Mateo Emerald Lake, W. of Redwood City Comment
  RSA448568  Sidalcea diploscypha L. S. Rose 1936-5-28 36300 San Mateo Emerald lake, W. of Redwood City. Comment
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley Comment
  UC1589119  Sidalcea malviflora W. Roderick 1961-1-15 61 .012 San Mateo 2.6 mi n Kings Mt. Rd. (nw of Woodside, Cahil Ridge on Skyline Blvd., Highway 5); nw of Woodside, Cahil Ridge on Skyline Blvd Comment
  UCSB11675  Sidalcea malviflora Connelly, Dianne 1962-4-21 San Mateo Above main office of Westborough homes development, 10 miles north of San Francisco, Skyline Boulevard 121 Comment
  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
  JROH1741  Silene gallica John Hunter Thomas 1987-5-5 24240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM286433  Silene gallica Lyman Benson 1930-4-6 2040 San Mateo Moss Beach. West slope. 15 Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  RSA191939  Silene scouleri R. F. Thorne, Percy C. Everett 1963-6-9 32235 San Mateo On top of San Bruno Mountain. 335 Comment
  CAS-BOT-BC389899  Silene scouleri subsp. scouleri Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Kamtchaka [Kamchatka] Point Comment
  JROH1234  Silybum marianum John Hunter Thomas 1989-5-9 24707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC364858  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  JROH4443  Sisyrinchium bellum John Hunter Thomas 1981-4-21 20464 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA133098  Sisyrinchium bellum Donald A. Johansen 1933-5-18 708 San Mateo Hills above Searsville Lake, Stanford University Campus Comment
  UCD138874  Sisyrinchium bellum R. E. Dengler 1960-4-12 24 San Mateo on northeast side of ravine, Jasper Ridge, Stanford Biological Reserve. 129 Comment
  SEINET3561666 Image available Sitanion jubatum Lewis S. Rose 1932-1 32226 San Mateo Redwood City. Comment
  UC844167  Smilacina racemosa Lewis S. Rose 1941-3-12 41025 San Mateo Skyline Blvd. w San Bruno 152 Comment
  RSA15288  Smilacina stellata var. sessilifolia Carl B. Wolf 1927-4-3 256 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UCD129025  Solanum Ed Johnson 1973-8-15 s.n. San Mateo On the perimeter of an orchard. Comment
  JROH4175  Solanum americanum John H. Thomas 1974-10-29 17641 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CHSC56603  Solanum douglasii Steven Triano 1988-5-24 172 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  UCD126930  Solanum douglasii E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains near San Francisco County Line, 0.5 mile from Summit Loop trailhead on Guadalupe Canyon Road. Comment
  CDA19847  Solanum elaeagnifolium J. Beall 2002-4-26 PDR 065844 San Mateo San Francisco Bay Area; Beech St & RR tracks behind 1303 Main Street, Redwood City. 0 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
  SJSU15425  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-31 719 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  CAS-BOT-BC157630  Solanum umbelliferum Lewis S. Rose 1934-2-10 34024 San Mateo Woodside Comment
  CAS-BOT-BC58480  Solanum umbelliferum F. Hemphill 1973-3-17 616 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4189  Solanum umbelliferum John H. Thomas 1968-3-17 14192 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820568  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside. Canyons in Hills Comment
  SD37373  Solanum umbelliferum Delzie Demaree 1932-4-9 8981 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC157549  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  UC1537406  Solanum umbelliferum Gordon H. True Jr. 1936-4-5 385 San Mateo between San Gregorio Pescadero (near coast) 30 Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  CAS-BOT-BC353473  Solidago elongata Peter Rubtzoff 1978-9-16 9271 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC365534  Solidago elongata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  UC473553  Solidago elongata Lewis B. Rose 1931-9-9 San Mateo Kings Mt. Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  UCD18352  Solidago spathulata J. Skoss 1948-8-22 121 San Mateo San Vicente Canyon. Comment
  CAS-BOT-BC365189  Solidago velutina subsp. californica Roxana S. Ferris 1920-9-3 2051 San Mateo Santa Cruz Mountain Peninsula. Near the upper Mud Lake, Coal Mine Ridge Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  JROH1251  Soliva sessilis John Hunter Thomas 1987-5-5 24250 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Road Comment
  RSA60662  Soliva sessilis I. L. Wiggins 1950-5-20 12352 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  RSA130975  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Near Pescadero Creek. The Santa Cruz Peninsula. Comment
  RSA320914  Soliva sessilis Robert A. Norris 1984-3-21 4651 San Mateo Along trail in saddle between Parking Area (and summit) and Blue Blossom Hill, San Bruno Mtns. 305 Comment
  CAS-BOT-BC374491  Sonchus asper Fred Hemphill 1973-4-22 786 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC374494  Sonchus asper Fred Hemphill 1973-5-14 821 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC374492  Sonchus asper John H. Thomas 1971-5-2 15869 B San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC374496  Sonchus asper Le Roy Abrams 1901-3-16 1144 San Mateo Woodside - Menlo Park Comment
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18413  Sonchus oleraceus Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake, Sawyer Camp Road, about 2.7 miles off Skyline Blvd., entrance off Millbrae Ave. 106 Comment
  JROH5523  Sparganium eurycarpum var. eurycarpum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake near bridge. Comment
  CHSC19915  Spartina foliosa L. A. Wright Jr. 1971-4-9 28 San Mateo Found practically in San Francisco Bay, about 250 yds sw from the Coyote Point Harbor building, ca. 1.5 mi e of Highway 101, San Mateo. Off of Coyote Pt. road. Elevation less than 10 ft. Comment
  RSA65493  Spergula arvensis Mabel Peirson 1926-2-24 6520 San Mateo Moss Beach. Comment
  JROH1747  Spergula arvensis John Hunter Thomas 1983-4-5 21325 San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  SEINET1877518 Image available Spergularia bocconi Tom Hensel 1973-7-10 278 -A San Mateo Pigeon Point lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line. Comment
  CAS-BOT-BC390451  Spergularia macrotheca var. macrotheca Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC390454  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4244 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390460  Spergularia macrotheca var. macrotheca Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9290 A San Mateo Ano [Ano] Nuevo Point Comment
  CAS-BOT-BC390452  Spergularia macrotheca var. macrotheca Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC390456  Spergularia macrotheca var. macrotheca John H. Thomas 1963-5-20 10103 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC390918  Spergularia marina W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Vicinity of Mussel Rock Comment
  CDA24145  Spergularia marina Buchanan 1960-4-28 San Mateo Harbor Blvd. & Freeway, Redwood City. 0 Comment
  SJSU15219  Stachys ajugoides Toni Corelli 2011-5-21 701 San Mateo Ano Nuevo State Park, Cascade Field 12 Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  JROH2910  Stachys bullata John Hunter Thomas 1987-5-19 24294 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC32569  Stachys bullata W. C. Blasdale 1893-6-23 San Mateo Pilarcitos 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
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  SEINET13948145 Image available Stachys pycnantha Lewis S. Rose 1956-1 56118 San Mateo Emerald Lake, hills W of Redwood City. Alt ca 600 ft 183 Comment
  NY415794  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  NY415795  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  JEPS51122  Stellaria media W. L. Jepson 1920-3-14 8427 San Mateo Burlingame Comment
  CAS-BOT-BC394055  Stellaria media Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon; San Bruno Mountain 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
  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
  JROH5328  Stipa lepida John Hunter Thomas 1992-5-15 25334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5336  Stipa pulchra John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD175782  Stipa tenuissima L. Kuwahara 2006-6-1 1359399 San Mateo East side of Skyline Blvd., 0.75 mile south of State Highway 92. 359 Comment
  POM313014  Stuckenia pectinata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Marshes at Sharp Park. Comment
  POM149336  Stylomecon heterophylla C. F. Baker 1902-5-4 745 San Mateo Woodside. Comment
  SBBG35017  Stylomecon heterophylla A. D. E. Elmer -May-1903 4921 San Mateo San Pedro [Point?] Comment
  CAS-BOT-BC271641  Symphoricarpos albus var. laevigatus J. I. McMurphy 1906-5-8 75 San Mateo Woodside, Santa Cruz Mts., Santa Cruz Mountain Peninsula 152 Comment
  CAS-BOT-BC271642  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271644  Symphoricarpos albus var. laevigatus George Oberlander 1950-3-18 590 San Mateo San Mateo Creek Comment
  CAS-BOT-BC271646  Symphoricarpos albus var. laevigatus Josephine D. Randall 1907-7-23 28 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula 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
  POM285012  Symphoricarpos albus var. laevigatus Lyman Benson 1937-7-15 8449 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
Read comments
Sep 30 2011
  CAS-BOT-BC344895  Symphyotrichum chilense Peter Rubtzoff 1975-9-11 8376 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC99053  Symphyotrichum chilense Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  HSC23979  Symphyotrichum chilense Mary Katherine Wicksten 1971-6-24 117 San Mateo Huddart Park, by park entrance Comment
  SJSU11816  Symphyotrichum subspicatum R. L. Sears 1968-5-18 73 San Mateo by Higway One, 3 miles N of Pescadero Comment
  JROH1281  Tanacetum parthenium John Hunter Thomas 1991-11-21 25107 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  JROH1287  Taraxacum officinale John Hunter Thomas 1981-2-14 20230 San Mateo Jasper Ridge Biological Preserve, Stanford University; old picnic area below dam Comment
  UC874110  Taraxia ovata Lewis S. Rose 1941-4-15 41137 San Mateo hills w Millbrae 91 Comment
  JROH3000  Taraxia ovata Duncan M. Porter 1961-4-8 746 San Mateo Jasper Ridge Biological Preserve, Stanford University; in large meadow at crest of ridge Comment
  JROH3004  Taraxia ovata John Hunter Thomas 1978-4-25 19148 San Mateo Jasper Ridge Biological Preserve, Stanford University; old parking area Comment
  UC306535  Tauschia kelloggii A. D. E. Elmer April, 1903 4928 San Mateo Crystal Springs Lake Comment
  UCR121562  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC438270  Tetragonia tetragonoides Lewis S. Rose 1930-12-21 s.n. San Mateo Moss Beach Comment
  RSA14506  Tetragonia tetragonoides I. L. Wiggins 1935-8-24 8161 San Mateo Inner edge of beach at Moss Beach Comment
  JROH3510  Thalictrum fendleri var. polycarpum John H. Thomas 1973-3-12 16495 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  UC727238  Thalictrum fendleri var. polycarpum W. R. Dudley 1904-4-10 San Mateo Alpine Rd Santa Cruz Mountain Peninsula, Black Mt. Comment
  JROH1596  Thysanocarpus curvipes John Hunter Thomas 1982-4-4 20819 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1615  Thysanocarpus curvipes John Hunter Thomas 1988-4-2 24358 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1588  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1978-4-8 19059 D San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0039332  Thysanocarpus curvipes var. curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mi. west of Skyline Drive on Alpine Road. Comment
  JROH380  Torilis arvensis John Hunter Thomas 1992-5-14 25230 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  RSA15296  Toxicodendron diversilobum C. B. Wolf 1927-4-3 266 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH5913  Toxicoscordion fremontii L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail behind weather station, near upper grassland Comment
  JROH3391  Trientalis latifolia John H. Thomas 1973-5-5 16764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116715  Trientalis latifolia W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula, in redwoods near Pescadero creek Comment
  SEINET11974143  Trientalis latifolia Unknown 1932-1 8974 San Mateo Los Trancos Woods Comment
  UCSC010360  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  POM126281  Trifolium amoenum R. L. Pendleton, A. A. Heller 1907-4-20 621 San Mateo Colma Comment
  CAS-BOT-BC157982  Trifolium amplectens Peter Rubtzoff; Barbara Deutsch 1979-5-27 9285 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction Comment
  SJSU660  Trifolium amplectens var. stenophyllum A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  UC165612  Trifolium ciliolatum J. Burtt Davy 1893-6-17 775 San Mateo Belmont Comment
  JROH2266  Trifolium depauperatum var. truncatum John H. Thomas 1956-4-7 5612 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2233  Trifolium dichotomum John H. Thomas 1975-4-19 17797 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4289  Trifolium dubium T. C. Fuller 1967-6-13 15945 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  JROH2282  Trifolium fucatum Robert Robertson 1954-4-23 100 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH2310  Trifolium fucatum John Hunter Thomas 1992-5-5 25214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC137797  Trifolium fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  JROH2314  Trifolium glomeratum Toni Corelli 2012-5-15 374 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road J 115 Comment
  UCD78049  Trifolium glomeratum Robert E. Preston 2004-6-10 2253 San Mateo Ca. 8 miles NW of Boulder Creek, in Pescadero Creek watershed. 162 Comment
  JROH5588  Trifolium gracilentum John H. Thomas 1969-4-12 14880 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSB8433  Trifolium gracilentum Haller, John 1950-3-24 San Mateo Near Atherton, 3 miles northwest of Stanford University Comment
  JROH2331  Trifolium hirtum Carol Zabel 1989-4-19 12 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C Comment
  SEINET8232361  Trifolium macraei A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  POM277915  Trifolium microcephalum Lyman D. Benson 1930-5-1 2050 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  JROH2365  Trifolium subterraneum John Hunter Thomas 1988-6-2 24500 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  JROH2349  Trifolium subterraneum John Hunter Thomas 1982-5-18 20936 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  JROH2379  Trifolium variegatum John H. Thomas 1968-3-31 14260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2380  Trifolium variegatum John H. Thomas 1968-4-19 14302 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2384  Trifolium variegatum John H. Thomas 1974-4-25 17203 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10862681  Trifolium willdenovii Robert V. Bradshaw 1922-4-10 Bradshaw 2548 San Mateo Jasper Ridge Comment
  CHSC996  Trifolium wormskioldii A. Koopman 1929-5-9 San Mateo Moss Beach. Comment
  CDA39377  Trillium chloropetalum A. C. Browne 1950-3-27 72 San Mateo Jasper Ridge. 0 Comment
  HSC101806  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  CAS-BOT-BC521006  Trillium chloropetalum var. chloropetalum Janet Jones 1981-1-17 s. n. San Mateo On south side of Montara Mountain, Montara Comment
  POM290752  Trillium chloropetalum var. giganteum Lyman Benson 1929-3-2 989 San Mateo Hill above Lake Searsville. Comment
  CAS-BOT-BC521069  Trillium chloropetalum var. giganteum C. F. Leithold 1894-7-29 s.n. San Mateo Santa Cruz Peninsula: Near La Honda Comment
  POM193597  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Ravine south side of Montana Mountains. Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  SD39140  Trillium sessile Edith A. Purer 1933-4-18 3619 San Mateo No further locality information given on label on specimen sheet. Comment
  UC1073397  Triphysaria eriantha subsp. eriantha George B. Rossbach 1955-3-26 476 San Mateo next ridge n San Bruno Mt. (open slope of pinnacle, n San Mateo County); next ridge n of San Bruno Mt. 243 Comment
  CAS-BOT-BC238567  Triphysaria floribunda George Oberlander 1951-3-30 1182 San Mateo San Francisco Watershed Reserve Comment
  UC27202  Triphysaria floribunda J. Burtt Davy 1895-4-20 1028 San Mateo Millbrae Comment
  JROH4138  Triphysaria pusilla John H. Thomas 1971-4-10 15753 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4145  Triphysaria pusilla John Hunter Thomas 1986-4-18 23958 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4741  Triteleia hyacinthina John Hunter Thomas 1981-4-30 20519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18293  Triteleia ixioides subsp. ixioides Carl B. Wolf 1927-6-21 424 San Mateo East slope of Kings Mt. Comment
  SD27834  Triteleia ixioides subsp. ixioides Carl B. Wolf 1929-5-24 3724 San Mateo Ao mile north of base of La Honda Grade, on road to Woodside. 121 Comment
  JROH4747  Triteleia laxa John H. Thomas 1971-5-30 15956 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along trail below dam. Comment
  SD39088  Triteleia laxa Janet Turner 1933-4-18 3688 San Mateo Emerald Lake. Comment
  POM276973  Triteleia laxa Lyman Benson 1930-4-17 2070 San Mateo Stanford University 91 Comment
  CAS-BOT-BC200486  Triticum aestivum Walter Knight; Irja Knight 1965-4-24 1037 San Mateo Point San Bruno Comment
  CAS-BOT-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  CAS-BOT-BC74064  Turritis glabra Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  UC241789  Typha latifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1554 San Mateo Sharp Park; along ocean coast, Sharp Park Comment
  CDA20602  Ulex europaeus J. Beall 2005-10-27 PDR 1359199 San Mateo San Francisco Bay Area; 0.25 mi Nof Westline and Skyline, Daly City. 0 Comment
  RSA149146  Ulex europaeus John H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  SD232694  Ulex europaeus Don Pendleton 1993-11-20 San Mateo Daly City, at 333 Hickey Blvd. Comment
  UCR101543  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo San Francisco Bay Area, South San Francisco, south side of Hickey Blvd. between Junipero Serra Blvd. and the 280 Fwy, east of Mandarin Dr. and west of Longford Dr., at edge of Daly City, SW of Cypress Lawn Cemetery Comment
  CAS-BOT-BC213099  Ulex europaeus Roxana S. Ferris 1921-3-21 2119 San Mateo In ravine at edge of ocean; New Year's Point Comment
  JROH135  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH138  Umbellularia californica John H. Thomas 1968-2-11 14143 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382763  Uropappus lindleyi Ned Cahill 1974-5-18 294 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City 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
  CAS-BOT-BC403969  Urtica dioica subsp. gracilis L. R. Abrams 1927-6-13 s.n. San Mateo La Honda Comment
  JEPS43426  Urtica urens W. L. Jepson 1921-4-3 9105 San Mateo Colma, Colma Canyon Colma Canyon; Colma, Colma Canyon Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  CAS-BOT-BC199347  Vaccinium ovatum David D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC199369  Vaccinium ovatum J. H. Thomas 1949-3-31 203 San Mateo King's [Kings] Mountain Road Comment
  CAS-BOT-BC228837  Vaccinium ovatum Peter W. Fritsch; Lu Lu; Lisa Fritsch; Nathan Fritsch 2012-6-30 1939 San Mateo San Bruno State Park, SE section of Ridge Trail; NE-facing slope near the summit 357 Comment
  POM132203  Vaccinium ovatum A. D. E. Elmer 1903-04 4561 San Mateo Kings Mountain. Comment
  RSA10269  Vaccinium ovatum H. A. Barker 1927-5-6 693 San Mateo Summit of Kings Mts. Comment
  RSA169352  Vaccinium ovatum L. S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 610 Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
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Sep 22 2011
  UC634722  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  CDA38876  Vaccinium ovatum A. C. Browne 1950-5-3 s.n. San Mateo La Honda. 0 Comment
  CAS-BOT-BC199463  Vaccinium parvifolium L. R. Abrams 1909-8-1 4247 San Mateo Between La Honda & Pescadero Comment
  JROH4257  Verbena lasiostachys var. lasiostachys John H. Thomas 1962-5-31 9895 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge Comment
  JROH4281  Verbena lasiostachys var. scabrida John Hunter Thomas 1983-6-2 22325 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low-flow crossing Comment
  SD2652  Vicia americana var. truncata Unknown Jun 1925 San Mateo Near La Honda Comment
  JROH2426  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -1 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7097925  Vicia gigantea A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  UC16992  Vicia hassei J. Burtt Davy 1895-4-20 1076 San Mateo San Mateo Creek Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 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
  JROH2438  Vicia sativa subsp. nigra John Hunter Thomas 1982-4-28 20867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanfor