Search Results — 2000 specimen records retrieved (1322 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC177927  Abelia X grandiflora Harriet A. Walker 1914-8-24 3650 San Mateo Cultivated at Hillsborough Comment
  SEINET11941810  Abronia latifolia E. A. Purer 1933-1 5381 San Mateo Sand dunes, 2 mi S of Pigeon Point Comment
  SEINET11941812  Abronia latifolia M. T. Doutt 1931-1 242 San Mateo S of San Fransisco Comment
  SEINET5726308 Image available Abronia latifolia Louise Lackman 1973-1 33 San Mateo sand dune, ca. 100 feet from shoreline.; Pescadero Beach Comment
  SBBG30030  Abronia umbellata L. S. Rose 1935-10-12 35654 San Mateo Salada 3 Comment
  SEINET7042346  Abronia villosa A. G. Vestal 1962-3-26 s.n. San Mateo Laguna Salada. San Francisco South quadrangle UTM Zone 10, 545384mE, 4164305mN. Comment
  CAS-BOT-BC451116  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  JEPS15238  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins, L. T. Dempster and S. Galen Smith 1956-5-15 5644 San Mateo near summit of first range of hills due w. San Bruno (ca. 1/4 mi. e. of Skyline Blvd.) 137 Comment
  JEPS30400  Acaena pinnatifida var. californica James B. Roof, Irja Knight 1963-4-24 San Mateo w. end of San Bruno Mt. (slopes above Colma Canyon, Daly City); Daly City, San Bruno Mt. Comment
  UC137274  Acaena pinnatifida var. californica C. F. Baker 1902-5-1 688 San Mateo Crystal Springs Lake Comment
  POM308816  Acaena pinnatifida var. californica I. L. Wiggins 1942-5-26 10096 San Mateo 2.5 miles S of Pescaderon, on the old Coast road Comment
  RSA171123  Acaena pinnatifida var. californica Robert F. Thorne, Percy C. Everett 1963-6-9 32233 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  CAS-BOT-BC219606  Acanthomintha duttonii D. K. Gillespie 1930-4-21 9220 San Mateo Emerald Lake near Redwood City Comment
  JROH159  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  POM136914  Acer negundo subsp. californicum C. F. Baker 1902-5-15 472 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC336917  Acer negundo var. californicum C. B. Wolf 1930-5-11 1809 San Mateo 4 miles W. of La Honda, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC21553  Achillea millefolium Walter Knight; Irja Knight 1965-4-25 1074 San Mateo San Bruno Mountain. Owl's Canyon. Comment
  CAS-BOT-BC21577  Achillea millefolium Ned Cahill 1974-4-18 123 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21593  Achillea millefolium Javier Penalosa 1963-3-30 2750 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  SJSU8173  Achillea millefolium R. J. Plant 1965-10-23 San Mateo San Gregorio Beach Comment
  UCSB22461  Achillea millefolium 1964-3-24 San Mateo About 8/10 of a mile off Skyline Blvd. along Sawyer Camp Road, the entrance off Millbrae Ave., around Crystal Spring Lake 106 Comment
Read comments
Sep 9 2011
  CAS-BOT-BC21595  Achillea millefolium Catherine Toschi 1963-2-23 63 :15 San Mateo San Bruno Mountains above Crocker Avenue 152 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
  UCSB18197  Achillea millefolium Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  JROH456  Achyrachaena mollis John H. Thomas 1955-5-6 4981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH462  Achyrachaena mollis John H. Thomas 1971-4-10 15754 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176744  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SBBG34038  Acmispon americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 243 Comment
  SD2527  Acmispon americanus Ulysses S. Grant IV Jun 1925 San Mateo Burlingame Comment
  OBI13045  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, W of Redwood City 244 Comment
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2100  Acmispon wrangelianus John H. Thomas 1975-5-2 17859 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391678  Actaea rubra Margaret A. Barry 1937-7-17 197 San Mateo On Coal Mine Ridge Comment
  JROH478  Adenocaulon bicolor Volney Rattan 1867-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  CAS-BOT-BC29294  Adenocaulon bicolor George Oberlander 1949-8-20 275 San Mateo Cahill Ridge Comment
  CAS-BOT-BC139959  Adenostoma fasciculatum George Oberlander 1949-6-25 234 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC140000  Adenostoma fasciculatum Fred Hemphill 1973-4-22 722 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET191645  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo Emerald Lake hills west of Redwood City. 120 Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  CAS-BOT-BC65515  Adiantum aleuticum George Oberlander 1950-3-11 440 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC65513  Adiantum aleuticum W. R. Dudley 1896-4-18 s.n. San Mateo Pescadero Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC65669  Adiantum jordanii George Oberlander 1950-3-11 512 San Mateo Pilarcitos Canyon Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC202667  Aesculus californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  SEINET3558831 Image available Aesculus californica Lewis S. Rose 1934-5-15 34260 San Mateo Burlingame. Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  CAS-BOT-BC29525  Agoseris apargioides Alice Eastwood 1915-6-13 4715 San Mateo Granada Comment
  SD41371  Agoseris apargioides Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive. Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  JROH481  Agoseris grandiflora var. grandiflora John H. Thomas 1971-5-30 15976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC23023  Agoseris grandiflora var. grandiflora E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo Top of ridge, east of Nike station Comment
  JROH489  Agoseris heterophylla John H. Thomas 1970-4-28 15611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292575  Agoseris heterophylla Arthur L. Cohen 1935-4-21 626 San Mateo Jasper Ridge 122 Comment
  RSA18497  Agoseris heterophylla var. heterophylla C. B. Wolf 1927-7-14 623 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC15244  Agoseris hirsuta W. R. Dudley 1893-7-1 s.n. San Mateo Stanford Campus Comment
  CAS-BOT-BC15247  Agoseris hirsuta Elizabeth McClintock; Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, top of ridge East of Nike Station Comment
  CAS-BOT-BC376133  Agrostis Ricardo Villasenor, Jr. 1993-7-1 s.n. San Mateo San Francisco International Airport, west of Hwy. 101 Comment
  SACT000119  Agrostis alba Malcolm Nobs, S. Smith 1949-8-25 San Mateo Marshes of Sharp Park Comment
  CAS-BOT-BC210070  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  JROH4780  Agrostis capillaris John Rawlings 2011-6-20 1072 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Caretaker Residence. 105 Comment
  CAS-BOT-BC127465  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Highway 1, ca. 5-6 miles south of San Francisco. Comment
  UC1153947  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo along State Hwy 1 ca 5-6 mi s San Francisco (bluffs above sea) Comment
  JROH4799  Agrostis pallens Herbert Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in swale between E. serp. and 2nd enclosure (reading from S.E. to N.W.) Comment
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 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
  RSA90275  Aira caryophyllea D. D. Keck 1932-5-6 1480 San Mateo Open hillside just west of Millbrae Highlands. 50 Comment
  CAS-BOT-BC138238  Aira caryophyllea var. caryophyllea John H. Thomas 1965-4-29 10614 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  JROH4303  Alisma triviale Carol Zabel 2006-4-19 56 San Mateo Jasper Ridge Biological Preserve, Stanford University; off first bridge on Trail 12 (end of Road E), northeast side of bridge Comment
  JROH4566  Allium John H. Thomas 1976-5-26 18153 San Mateo Jasper Ridge Biological Preserve, Stanford University 148 Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  SJSU1085  Allium dichlamydeum C. W. Sharsmith 1951-4-6 5822 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  UC1731201  Allium dichlamydeum Dean W. Taylor 1988-5-19 9644 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest, eastern-most set of PG&E high-voltage powerlines crossing the mountain 176 Comment
  CAS-BOT-BC467298  Allium dichlamydeum Barrett Anderson; Peter Rubtzoff 1988-4-26 3675 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Parkway. 365 Comment
  JROH4549  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes. Comment
  CAS-BOT-BC469037  Allium falcifolium A. D. E. Elmer 1903-4-1 4831 San Mateo Crystal Springs Lake Comment
  UC766744  Allium lacunosum R. F. Hoover 1941-4-23 4910 San Mateo Redwood City hills Comment
  CAS-BOT-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  CAS-BOT-BC471100  Allium lacunosum var. lacunosum Lewis S. Rose 1931-5-15 s.n. San Mateo Emerald Lake, west of Redwood City Comment
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  UCD138563  Allium neapolitanum H. Frederick 1972-4-1 s.n. San Mateo Bernal Ave., Burlingame. Comment
  CAS-BOT-BC132031  Allium peninsulare var. franciscanum L. R. Abrams 1920-6-2 7502 San Mateo Back of Redwood City Comment
  POM169411  Allium peninsulare var. franciscanum C. F. Baker 1902-5-10 809 San Mateo Crystal Springs Lake. Comment
  SEINET12044628  Allium unifolium R. S. Ferris 1921-1 2183 San Mateo New Year's Pt Comment
  CAS-BOT-BC170157  Alnus rhombifolia W. R. Dudley 1906-10-3 s.n. San Mateo Border of Pescadero Creek, opposite Svensons old place. Santa Cruz Mountain Peninsula Comment
  JROH174  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD255621  Amaranthus deflexus A. C. Sanders 2015-12-27 41888 San Mateo San Francisco Peninsula: San Bruno, along Hwy 82 between 380 Fwy and San Bruno Ave (San Francisco South 7.5'Q) 14 Comment
  POM192784  Amaranthus deflexus W. R. Dudley 1895-9-21 s.n. San Mateo By R.R. back of Menlo Park Station Comment
  RSA107065  Amaranthus deflexus L. S. Rose 1956-9-1 56154 San Mateo Atherton 6 Comment
  CAS-BOT-BC44933  Ambrosia chamissonis David D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach Comment
  SBBG45023  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  SD39996  Ambrosia chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 miles south of Pigeon Point on open dune areas Comment
  UC579657  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo s of Pescadero; Santa Cruz Quadrangle, Bolsa Point 0 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  CAS-BOT-BC136832  Amelanchier utahensis Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker Estate portion of mountain Comment
  CAS-BOT-BC214048  Amsinckia Lewis S. Rose 1933-5-17 33174 A San Mateo Redwood City Comment
  CAS-BOT-BC214049  Amsinckia James McMurphy 1906-3-10 s.n. San Mateo By stone crusher. Comment
  UC1178221  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo 1.7 mi below junction to Skyline (opposite gravel pit, Road w of San Mateo City to Skyline Blvd, (Hillsborough)) Comment
  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
  RSA88321  Amsinckia spectabilis Alice Eastwood 1915-6-13 4723 San Mateo Granada. Comment
  RSA18466  Anagallis arvensis Carl B. Wolf 1927-6-29 542 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC391918  Anemone grayi Josephine D. Randall 1908-4-12 s.n. San Mateo Santa Cruz Peninsula. King's Mt. Comment
  CAS-BOT-BC221452  Angelica hendersonii Lewis S. Rose 1937-9-5 37647 San Mateo Mussel Rocks 60 Comment
  JROH192  Angelica tomentosa John Hunter Thomas 1989-6-17 24776 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC273170  Anisocarpus madioides Bruce G. Baldwin 1985-6-22 489 San Mateo 0.4 miles south of junction with Alpine Road along Skyline Road Comment
  UCD135771  Anisocarpus madioides Bruce G. Baldwin 1985-6-22 489 San Mateo 0.4 mile south of junction with Alpine Road along Skyline Road. Comment
  JROH502  Anthemis cotula John H. Thomas 1977-6-16 18757 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC280647  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  JROH201  Anthriscus caucalis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2013133  Antirrhinum orontium Neal Kramer 2012-4-27 2044 San Mateo Moss Beach Hills approximately 3/4 mile north of the Half Moon Bay Airport entrance. Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454480  Aphanes occidentalis Elizabeth McClintock 1965-3-14 s.n. San Mateo South Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  SD71033  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo In a small pool near the road, Skyline Boulevard near the junction of Chinese Cemetery Road. (IPB 4/07) Comment
  UC1285700  Aponogeton distachyos Rolf Benseler 1966-4-10 San Mateo 100 yards s of King Drive (formerly Chinese Cemetery Road), e side of Highway No. 5, Skyline Boulevard, northern end of San Mateo County King Drive; e side Highway No. 5, Skyline Boulevard Comment
  CAS-BOT-BC392066  Aquilegia eximia W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Southeast of Crystal Springs Lake Comment
  UCSB18280  Aquilegia eximia Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 60 Comment
  CAS-BOT-BC405894  Aquilegia formosa Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Bitter-cherry Ridge. Comment
  SEINET5721773 Image available Aquilegia formosa Johnny O. Johnson 1974-1 29 San Mateo Bear Gulch Road, 2 miles north of its intersection with State Hwy 84. Comment
  CAS-BOT-BC17316  Arabis blepharophylla Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountains. Buckeye Canyon. Comment
  CAS-BOT-BC17328  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  CAS-BOT-BC17329  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  CAS-BOT-BC17330  Arabis blepharophylla Lewis S. Rose 1933-3-19 33027 San Mateo South San Francisco. Comment
  JEPS90201  Arabis blepharophylla Dean W. Taylor 1988-3-16 9407 A San Mateo Santa Cruz Mountains, summit of San Bruno Mountain, along fire road 120 m e from summit parking lot San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 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
  JEPS90213  Arabis glabra Dean W. Taylor 1988-3-30 9470 San Mateo near the ridgecrest of northern slope of se ridge of San Bruno Mountain (Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing mountain); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  SEINET10454399  Aralia californica Mary Susan Taylor 1978-8-30 Taylor 1853 San Mateo Comment
  CAS-BOT-BC128671  Arbutus menziesii E. A. McGregor 1907-4-28 s.n. San Mateo King's Mountain 243 Comment
  UC311549  Arbutus menziesii A. D. E. Elmer May, 1903 4515 San Mateo Scarsville Lake Comment
  CAS-BOT-BC24174  Arctostaphylos andersonii Roxania Strichfield 1914-2-28 33 San Mateo Portola Rd. Comment
  POM367229  Arctostaphylos andersonii L. H. Jones 1909-3-13 s.n. San Mateo Summit of Kings Mountain, Stanford University. 731 Comment
Read comments
Sep 22 2011
  SBBG25382  Arctostaphylos andersonii R. Gankin 1959-3-22 324 San Mateo King's Mtn Rd, 1.2 mi E of jct with St Hwy 5, ca. 5 mi W of Woodside Comment
  SEINET12001814  Arctostaphylos andersonii W. R. Dudley 1906-1 6 San Mateo near Crystal Springs Lake, Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET3410707 Image available Arctostaphylos andersonii Lewis S. Rose 1932-1-16 3214 San Mateo Brushy slopes, Kings Mt., San Mateo County, California. 640 Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  CAS-BOT-BC23547  Arctostaphylos crustacea W. R. Dudley 1899-5-14 s.n. San Mateo Hills by road from San Andreas Lake to Pilarcitos Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  SEINET12524566 Image available Arctostaphylos crustacea L. S. Rose 1942-1 42007 San Mateo Kings mountain. 600 Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  JROH1926  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-6-30 17463 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1931  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1934  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH1938  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1968-2-11 14145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  CAS-BOT-BC24486  Arctostaphylos imbricata Elizabeth McClintock; Arthur L. Menzies 1963-2-16 s.n. San Mateo Knoll nw. of first television tower, San Bruno Mt. Comment
  CAS-BOT-BC24500  Arctostaphylos imbricata James B. Roof 1961-4-18 s.n. San Mateo From ne. face of San Bruno Mountain, northern San Mateo Co. 335 Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  JEPS108597  Arctostaphylos montaraensis R. Raiche 1984-1-27 San Mateo Montara Mountain Comment
  SBBG83970  Arctostaphylos montaraensis R. Gankin 1966-5-17 740 b San Mateo Montara Mtn Comment
  UCD51756  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock 1982-3-27 4496 San Mateo Downhill and north from Pacific Rock; San Bruno Mountain. 304 Comment
  SEINET11987172  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4087 San Mateo Strybing Arboretum, San Francisco, orig. from San Bruno Mt. in 1963 Comment
  SEINET11988204  Arctostaphylos montaraensis W. Knight, Raiche, R. 1982-1 4415 San Mateo Mantara Mountain 305 Comment
  CAS-BOT-BC44701  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44742  Arctostaphylos regismontana J. H. Thomas 1949-3-29 2000 San Mateo Kings Mt. Rd. 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
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  UC1120832  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 1 San Mateo near Woodside road to King's Mountain; Santa Cruz Quadrangle 182 Comment
  UC1120845  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1467 San Mateo KIngs Mt. Rd. 6 mi w Woodside; Santa Cruz Quadrangle Comment
  UC1120847  Arctostaphylos regismontana A. E. Wieslander 1936-8-21 658 San Mateo Sierra Moreno Mt. Santa Cruz Quadrangle Comment
  CAS-BOT-BC44710  Arctostaphylos regismontana Walter Knight; Irja Knight; Jacob Sigg; Elizabeth McClintock 1981-2-25 4170 San Mateo From Strybing Arboretum, Golden Gate Park, San Francisco, #63-1 vea Univ. of Calif. botanic garden, Comment
  CAS-BOT-BC44672  Arctostaphylos sensitiva W. R. Dudley 1899-1-2 s.n. San Mateo On dry hills between Butano Cr. and Little Butano Cr. - Santa Cruz Mountain Peninsula Comment
  RSA128497  Arctostaphylos tomentosa subsp. crustacea Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA381043  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road. Comment
  RSA636839  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24649 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120137  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1465 San Mateo 4.5 mi w Woodside; Santa Cruz Quadrangle Comment
  UC565410  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1464 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  UCD51859  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 322 San Mateo 2.8 miles from junction state hwy 5 on King's Mt. Road, San Mateo County, California. Comment
  POM286194  Arctostaphylos tomentosa subsp. tomentosiformis Lyman Benson 1935-3-10 6255 San Mateo La Honda Grade. 518 Comment
  CAS-BOT-BC46838  Arctostaphylos uva-ursi Arthur Menzies 1962-2-25 s.n. San Mateo San Bruno Mt. Comment
  CAS-BOT-BC46839  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1981-3-1 4055 San Mateo from fire road edge about 200 yards east of summit parking lot. of San Bruno Mountain. Comment
  RSA0077992  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 422 San Mateo San Bruno Mountain, just E of sumit. 396 Comment
  SEINET11989207  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4636 San Mateo Kamchatka Point, San Bruno Mountains Comment
  CAS-BOT-BC400411  Aristolochia californica Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. Along the fence separating Brisbane from the Crocker Estate Company property above the southern ravine of Buckeye Canyon Comment
  CAS-BOT-BC47696  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC47704  Armeria maritima subsp. californica John R. Berth 1963-5-23 40 San Mateo Pigeon Point 3 Comment
  CAS-BOT-BC47707  Armeria maritima subsp. californica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  SD88449  Armeria maritima subsp. californica Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  RSA116672  Arnica discoidea W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  JROH4837  Arrhenatherum elatius Toni Corelli 2006-5-6 310 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road past Searsville Lake beach in disturbed grassy area, under large valley oak 106 Comment
  JROH514  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA51355  Artemisia californica L. S. Rose 1949-9-11 49179 San Mateo Montara Point. Comment
  OBI17042  Artemisia douglasiana Lewis S. Rose 1965-9-4 65101 San Mateo Skyline Blvd & Half Moon Bay rd, Cahill ridge 244 Comment
  RSA17888  Artemisia douglasiana C. B. Wolf 1927-7-29 s.n. San Mateo Summit La Honda Grade Comment
  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
  RSA184853  Asclepias fascicularis L. S. Rose 1965-8-27 s.n. San Mateo Emerald Lake, West of Redwood City 122 Comment
  POM57738  Aster chilensis B. Greene 1901-10-20 50 San Mateo Summit of Coast Range Comment
  RSA97496  Aster chilensis L. S. Rose 1954-8-29 54112 San Mateo Tunitas 30 Comment
  JROH1985  Astragalus gambelianus John H. Thomas 1956-4-7 5614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  POM16234  Astragalus nuttallii C. F. Baker 1902-10-1 1736 San Mateo Pillar Point. Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  UC1128872  Astragalus pycnostachyus var. pycnostachyus G. E. Sindel 1935-7-25 298 San Mateo 2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  CAS-BOT-BC66140  Athyrium filix-femina var. cyclosorum D. E. Breedlove 1973-9-26 35558 San Mateo Pescadero Creek County Park 365 Comment
  UCD97426  Atriplex hortensis Malcolm A. Nobs; S. Galen Smith 1949-8-27 1619 San Mateo E of Redwood City. Comment
  POM164809  Atriplex leucophylla E. B. Copeland 1903-6-5 3321 San Mateo Montara Point. Comment
  SEINET6901186  Atriplex prostrata Robert A. Evers, Clara V. Evers 1975-8-24 112024 San Mateo Trailer Villa, Redwood City. Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  CAS-BOT-BC146079  Avena barbata Fred Hemphill 1973-4-15 652 San Mateo San Carlos. North of Malabar Road and Melendy Road. 207 Comment
  JROH4842  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  SEINET10528168  Avena occidentalis Unknown Anonymous s.n. San Mateo Dry hill, Millbrae Meadows. Comment
  CAS-BOT-BC68326  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
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Oct 29 2021
  JROH538  Baccharis glutinosa John Hunter Thomas 1979-9-9 19731 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99503  Baccharis pilularis John H. Thomas 1961-8-27 9706 San Mateo San Bruno Mountain in northern part of county 396 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-BC99523  Baccharis pilularis Ned Cahill 1974-4-18 118 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99525  Baccharis pilularis W. R. Dudley 1895-10-19 s.n. San Mateo Near San Francisquito Creek, toward Searsville Comment
  UC87151  Baccharis pilularis C. F. Baker 1902-10-1 1740 San Mateo Pillar Point Pacific Coast Comment
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Feb 2 2012
  SD30701  Baccharis pilularis Edith A. Purer 1922-8-4 5409 San Mateo Clay hillside near Baden Station. Comment
  JROH547  Baccharis pilularis subsp. consanguinea John H. Thomas 1964-11-29 10547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH554  Baccharis pilularis subsp. consanguinea John Hunter Thomas 1988-10-17 24599 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5742  Baccharis pilularis subsp. pilularis John Rawlings 2015-11-7 1648 San Mateo Jasper Ridge Biological Preserve, Stanford University; 55 yards up Rd E from its Trail 14 intersection. 122 Comment
  CAS-BOT-BC16623  Barbarea orthoceras Fred Hemphill 1973-3-9 704 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16625  Barbarea orthoceras Fred Hemphill 1973-3-17 712 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR279901  Barbarea orthoceras var. dolichocarpa Peter Rubtzoff 1975-5-21 7962 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  JEPS35291  Bellardia trixago J. H. Thomas 1962-5-8 9852 San Mateo Pigeon Point Comment
  JROH3917  Bellardia trixago John H. Thomas 1977-5-18 18613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3924  Bellardia trixago John Hunter Thomas 1986-4-30 23986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3928  Bellardia trixago John Hunter Thomas 1988-6-6 24510 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  HSC81971  Bellardia trixago Thomas W. Nelson, James Nelson 1980-5-3 5131 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  UCSB42899  Bellardia trixago deGrange, J. 1982-5-15 San Mateo Ten yards west of junction of Hallmark and Comstock Streets; Bellmont; Fifty yards east of Crystal Springs Reservoir 243 Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC100195  Bellis perennis George Oberlander 1950-5-6 864 San Mateo on South Cahill Ridge Comment
  CAS-BOT-BC75876  Berberis pinnata John H. Thomas 1958-2-15 6990 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 182 Comment
  POM149245  Berberis pinnata A. D. E. Elmer 1903-04 4820 San Mateo San Bruno Hills Comment
  RSA0120250  Berberis pinnata Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  JROH1321  Berberis pinnata subsp. pinnata H. L. Mason 1922-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between "Zoo Shack" and sandstone caves Comment
  UC1191357  Beta vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-27 1620 San Mateo salt marshes e Redwood City; salt marshes e of Redwood City Comment
  UCSB17425  Betula occidentalis Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 mi. SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  UCD129560  Bidens pilosa Norman Frazier 1941-12-4 s.n. San Mateo along Highway, 1/2 mile east of Half Moon Bay. Comment
  JROH4420  Bolboschoenus maritimus subsp. paludosus John Hunter Thomas 1988-6-2 24494 San Mateo Jasper Ridge Biological Preserve, Stanford University. Beach area Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  CAS-BOT-BC95340  Bowlesia incana Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  JROH4852  Brachypodium distachyon John Hunter Thomas 1986-6-7 24089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET244250 Image available Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138951 San Mateo Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  UCR162537  Brachypodium sylvaticum John Beall 2003-12-4 s.n. San Mateo Santa Cruz Mtns., Woodside, on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit 427 Comment
  CDA37735  Brachypodium sylvaticum Breckenridge/Filippini 2010-7-22 s.n. San Mateo Woodside; across a number of properties. 0 Comment
  CAS-BOT-BC28048  Brassica fruticulosa Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo Guadalupe Hills. Near horse corral. Comment
  CAS-BOT-BC29992  Brassica juncea Fred Hemphill 1973-5-14 814 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  RSA0084270  Brassica nigra Lyman Benson 1936-6-11 7689 San Mateo Menlo Park; U.S. 101; Watershed: San Francisco Bay. 30 Comment
  CAS-BOT-BC36670  Brassica oleracea L. R. Abrams; Ira L. Wiggins 1939-6-3 439 San Mateo 2 miles north of Pigeon Point Lighthouse. Comment
  CAS-BOT-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC36797  Brassica rapa Alice Eastwood 1919-9-1 s.n. San Mateo Chinese garden. Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4875  Briza maxima W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. After crossing dam, to left, on right side of path just before going downhill. Comment
  CAS-BOT-BC145339  Briza minor Javier Penalosa 1963-3-30 2771 San Mateo San Bruno Mountain. Guadalupe Valley. 30 Comment
  CAS-BOT-BC145343  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 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
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  JROH4582  Brodiaea elegans subsp. elegans John H. Thomas 1976-5-26 18157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  POM169541  Brodiaea terrestris subsp. terrestris E. B. Copeland 1903-6-5 3297 San Mateo Montara Point. Comment
  SBBG39527  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo 121 Comment
  CAS-BOT-BC483171  Brodiaea terrestris subsp. terrestris Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain west of San Mateo 121 Comment
  CAS-BOT-BC483177  Brodiaea terrestris subsp. terrestris Mary Helen Kelson 1956-4-22 138 San Mateo On Alberta Way, Hillsborough, 1 mile from Sklyine Blvd. Comment
  CAS-BOT-BC483184  Brodiaea terrestris subsp. terrestris George Oberlander 1950-4-16 683 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC144142  Bromus John Thomas Howell 1955-4-27 s.n. San Mateo 0.3 mile north of Dam, Crystal Springs Road, on west side. 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-BC148982  Bromus carinatus var. carinatus George Oberlander 1950-4-22 753 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC149016  Bromus carinatus var. carinatus Walter Knight; Irja Knight 1965-4-25 s.n. San Mateo San Bruno Mountain. Owl's Canyon. 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
  CAS-BOT-BC156177  Bromus catharticus John Thomas Howell 1954-7-8 30010 San Mateo Skyline Boulevard above San Bruno. Comment
  CAS-BOT-BC155723  Bromus diandrus Ira L. Wiggins 1975-5-26 22153 San Mateo Bed of San Francisquito Creek, ca. 150 m. upstream from Chaucer/Pope Street bridge, Menlo Park. Comment
  CAS-BOT-BC155725  Bromus diandrus John H. Thomas 1963-5-20 10136 San Mateo Ano Nuevo Island, about 0.5 mile off shorea nd about 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC227624  Bromus diandrus Peter Rubtzoff 1977-6-21 9068 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS128397  Bromus diandrus Adam C. Schneider 2013-5-17 141 San Mateo Crystal Springs Reservoir Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4911  Bromus diandrus John Rawlings 2011-8-5 1083 San Mateo Jasper Ridge Biological Preserve, Stanford University; in gravel bed of Bear Creek near confluence with San Francisquito Creek 81 Comment
  CDA1794  Bromus diandrus Wm. Davis 1958-5-13 San Mateo Joos Nursery, Colma 0 Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  CAS-BOT-BC155135  Bromus hordeaceus Ned Cahill 1974-5-30 304 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  JROH4918  Bromus hordeaceus John H. Thomas 1963-5-15 10093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4955  Bromus madritensis subsp. rubens John Rawlings 2013-4-9 1146 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along brick path leading from visitor parking to Sun Field Station. 120 Comment
  POM204676  Bromus marginatus H. F. Copeland 1903-6-10 1630 San Mateo Montara Point. Comment
  RSA107096  Bromus marginatus L. S. Rose 1956-7-2 56115 San Mateo Skyline Blvd. hills w. of San Mateo 183 Comment
  RSA320909  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hill, San Bruno Mts. 366 Comment
  CAS-BOT-BC161748  Bromus rubens Fred Hemphill 1973-4-15 679 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  SEINET10954096  Bromus rubens Robert A. Norris 1977-5-2 Norris 3568 San Mateo Locally abundant in disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  UC676750  Cakile edentula Reed C. Rollins 1941-7-19 2961 San Mateo along beach at Half Moon Bay Half Moon Bay Comment
  CAS-BOT-BC36950  Cakile maritima var. maritima John H. Thomas 1963-5-20 10117 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  JROH4972  Calamagrostis koelerioides John H. Thomas 1962-7-15 9913 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  CAS-BOT-BC185141  Calamagrostis nutkaensis Elizabeth McClintock 1967-6-24 s.n. San Mateo San Bruno Mountain. Top of mountain between radio stations on Radio Road. Comment
  CAS-BOT-BC185150  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5033 San Mateo San Pedro. Comment
  CAS-BOT-BC233998  Calandrinia breweri Fred Hemphill 1973-4-15 687 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  JROH3320  Calandrinia ciliata Duncan M. Porter 1961-2-18 745 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  JROH4597  Calochortus albus John H. Thomas 1967-6-1 12976 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4602  Calochortus albus John H. Thomas 1973-5-5 16760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  UC72477  Calochortus albus Milo S. Baker May 1904 San Mateo near Burlingame Comment
  UCD23297  Calochortus albus Alan T. Whittemore 1976-5-29 118 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  CAS-BOT-BC492202  Calochortus albus George Oberlander 1950-5-6 975 San Mateo Among Redwood, Cahill Ridge Comment
  SEINET12044764  Calochortus albus L. S. Rose 1935-1 35214 San Mateo 9 mi W of Stanford U Comment
  CAS-BOT-BC487809  Calochortus coeruleus K. Hoppaugh 1929-5-11 212 San Mateo La Honda grade Comment
  JROH4634  Calochortus luteus John H. Thomas 1974-5-29 17404 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM196562  Calochortus luteus G. C. Kimber, Lucille Roush 1920-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula: near Los Trancos Creek Comment
  SEINET12053937  Calochortus luteus Unknown 1932-1 9159 San Mateo no further locality Comment
  UC729636  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo near La Honda grade; Santa Cruz Mts. 182 Comment
  RSA10361  Calochortus tolmiei H. A. Barker 1926-4-15 593 San Mateo Santa Cruz Mountains Comment
  CAS-BOT-BC132540  Calochortus umbellatus M N. Paulson 1915-4-10 s.n. San Mateo Kings Mountain Comment
  SEINET12044555  Calochortus venustus L. S. Rose 1932-1 32327 San Mateo Redwood City Comment
  JROH567  Calycadenia multiglandulosa John H. Thomas 1974-10-26 17634 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM263769  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  SEINET5781153 Image available Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo W of Redwood City, Emerald Lake Comment
  UC894246  Calycadenia multiglandulosa Lewis S. Rose 1937-9-21 37658 San Mateo Emerald Lake, w of Redwood City 182 Comment
  CAS-BOT-BC224660  Calystegia purpurata subsp. purpurata H. A. Lewis 1908-5-1 s.n. San Mateo Woodside Comment
  JEPS10201  Calystegia soldanella Rimo Bacigalupi with G. T. Robbins 1954-6-18 4558 San Mateo one-half mi n Pigeon Point; one-half mi n of Pigeon Point Comment
  SD38589  Calystegia soldanella Edith A. Purer 1933-7-27 5354 San Mateo Pigeon Point Comment
  CAS-BOT-BC436449  Calystegia subacaulis Ned Cahill 1974-4-29 194 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  UC1594174  Calystegia subacaulis subsp. subacaulis Jerry Powell 1991-6-1 1605 San Mateo Edgewood County Park. Comment
  CAS-BOT-BC160328  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer 1903-7-1 4942 San Mateo San Pedro Comment
  CAS-BOT-BC160330  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert Robertson 1954-5-1 130 San Mateo Near San Gregorio Creek 6 Comment
  JROH1645  Campanula griffinii John Hunter Thomas 1992-5-25 25343 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM209849  Campanula prenanthoides D. D. Keck 1934-7-7 2929 San Mateo Kings Mountain, west of summit 610 Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10463046  Campanula prenanthoides Leitholt LEITHOLT s.n. San Mateo Pascadero Comment
  CAS-BOT-BC37656  Cardamine californica W. R. Dudley 1893-4-1 s.n. San Mateo Santa Cruz Peninsula. Ravine near La Honda. Comment
  CAS-BOT-BC37682  Cardamine californica C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  JROH1483  Cardamine californica John H. Thomas 1969-4-12 14884 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM176891  Cardamine californica var. integrifolia W. R. Dudley 1893-2-18 s.n. San Mateo La Honda. Santa Cruz Peninsula. Comment
  UC483498  Cardamine californica var. integrifolia Ira L. Wiggins 1931-2-21 5089 a San Mateo 1/2 mi n Pebble Beach Hotel (Pescadero Beach); , n of Pebble Beach Hotel Comment
  JROH5654  Cardamine hirsuta John Rawlings 2014-4-3 1258 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 143 Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  JROH1494  Cardamine oligosperma John H. Thomas 1979-4-8 19447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1498  Cardamine oligosperma John Hunter Thomas 1983-4-5 21322 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UC1301005  Cardamine oligosperma Helen K. Sharsmith 1963-3-23 5247 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains, Alpine Creek 243 Comment
  CAS-BOT-BC167120  Cardamine oligosperma Peter Rubtzoff 1977-4-14 8946 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  SJSU15404  Cardionema ramosissimum Toni Corelli 2010-4-9 669 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica, CA 36 Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CAS-BOT-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC281837  Carduus tenuiflorus George Oberlander 1950-5-21 895 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  CAS-BOT-BC17854  Carex amplifolia Mrs. H. C. Cantelow 1940-5-23 3063 San Mateo Lake Pelachetis. [Pilarcitos?] Comment
  NY25686  Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  JROH4316  Carex barbarae John Hunter Thomas 1986-5-17 24049 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19320  Carex barbarae W. R. Dudley 1906-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. Bank of raod back from San Carlos Station. Comment
  CAS-BOT-BC19540  Carex bolanderi George Oberlander 1950-5-21 946 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC34076  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5250 San Mateo Tunitas. Comment
  CAS-BOT-BC18944  Carex densa Margaret A. Barry 1938-5-8 s.n. San Mateo On Coal Mine Ridge. Comment
  POM193987  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  SEINET3128102  Carex densa Unknown 1902-5-11 2444 San Mateo Crystal S? Comment
  JROH4337  Carex globosa John Hunter Thomas 1981-4-5 20292 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  JROH4342  Carex globosa John Hunter Thomas 1990-5-8 24851 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rock. Comment
  CAS-BOT-BC21814  Carex harfordii Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5251 San Mateo Tunitas. Comment
  CAS-BOT-BC21817  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-16 6049 San Mateo Ano Nuevo Comment
  SEINET10883864  Carex laciniata Adolph D. E. Elmer Elmer 2958 San Mateo Lake Merced. Comment
  UC833566  Carex nudata W. R. Dudley 1903-6-6 San Mateo mouth of Peters Creek, below Iversons Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC119346  Carex obnupta W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  RSA100991  Carex obnupta G. Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  UC2013125  Carex serratodens Neal Kramer 2012-3-3 2031 San Mateo Stulsaft Park Redwood City. Comment
  SEINET10949228 Image available Carex serratodens Charles F. Baker 1902-5-10 Baker 811 San Mateo Crystal Springs Lake, Comment
  RSA127081  Carex subbracteata John H. Thomas 1959-4-4 7657 San Mateo About 0.7 miles S. of Gazos Creek. About 6.5 miles southward from Pescadero. 46 Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  SJSU15906  Carex subbracteata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1731 B San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC116829  Carex subbracteata var. subbracteata W. R. Dudley 1906-6-10 s.n. San Mateo Cahill Ridge, 100 yds N of Spanish Town Road. Comment
  CAS-BOT-BC115513  Carex tumulicola W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  CAS-BOT-BC115515  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  JROH4367  Carex tumulicola John Hunter Thomas 1981-4-27 20502 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC824947  Carex vesicaria var. major W. R. Dudley May, 1894 San Mateo between Woodside and Crystal Springs; Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  CHSC81449  Carpobrotus edulis Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Sharp Park Rd at Hwy 1, Pacifica. 15 Comment
  UCSB1812  Carpobrotus edulis Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean, 1 miles south of Half Moon Bay Comment
  CAS-BOT-BC249184  Castilleja affinis Ira L. Wiggins 1925-4-1 1649 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  RSA10376B  Castilleja affinis H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  RSA187415  Castilleja affinis John H. Thomas 1950-3-19 1305 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  RSA425889  Castilleja affinis Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC249194  Castilleja affinis E. McClintock; Philip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Below Nike station 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
  RSA425890  Castilleja affinis Paul C. Silva 1948-1-31 2626 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  JEPS25440  Castilleja affinis subsp. affinis John Weiler 1961-3-22 6134 San Mateo 0.2 mi s Devil's Slide (about 2.5 mi n of community of Montara, n end of Montara Mtn); Montara Mtn. Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JEPS6916  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4741 San Mateo about 0.75 mi w Skyline Boulevard (upper part of Tunitas Canyon road, w slopes of Kings Mountain); Kings Mountain 579 Comment
  JROH3936  Castilleja affinis subsp. affinis Roger von Preissig 1954-4-23 26 b San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  SJSU15408  Castilleja affinis subsp. affinis Toni Corelli 2010-5-13 609 San Mateo Pedro Point Headlands, Pacifica CA; along Arroyo Trail 110 Comment
  UC1032388  Castilleja affinis subsp. affinis G. E. Sindel 1935-7-24 311 San Mateo Mouth of Pesacdero Creek Mouth of Pescadero Creek; Santa Cruz Quad. 3 Comment
  UC1032440  Castilleja affinis subsp. affinis H. S. Yates 1935-5-8 5201 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JEPS60426  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-22 6666 San Mateo 1.5 mi from Verde Road junction with Lobitos Creek Road Comment
  JEPS88800  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  UCSC005957  Castilleja ambigua Randall Morgan 1995-6-6 2724 San Mateo Common at Bean Hollow State Beach Comment
  UC1012400  Castilleja ambigua subsp. ambigua F. W. Pennell and D. D. Keck 1940-5-15 25427 San Mateo Burlingame; Routh 101 0 Comment
  RSA0030796  Castilleja ambigua subsp. ambigua D. D. Keck 1932-4-29 1453 San Mateo Burlington - San Mateo city limits, Bayshore Highway. Along San Francisco Bay. Comment
  JROH3959  Castilleja attenuata John H. Thomas 1974-4-19 17159 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3966  Castilleja attenuata John Hunter Thomas 1982-4-23 20838 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  SD234177  Castilleja densiflora Claude Bonang 1958-4-4 13 San Mateo Jasper Ridge. Meadow. Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3982  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-5-14 20585 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Lab Comment
  UC1012313  Castilleja exserta F. W. Pennell and L. R. Abrams 1940-5-16 25432 San Mateo 2 mi sw Skyline Boulevard (on Alpine Creek Road) 579 Comment
  NY68074  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  RSA294162  Castilleja franciscana Robert A. Norris, John L. Inase, Allen Nakagawa 1981-7-25 4228 San Mateo Along footpath 70 ft above a marshy lagoon border, N of mouth of Pescadero Creek, Pescadero State Beach. Comment
  CAS-BOT-BC243827  Castilleja latifolia David D. Keck 1931-10-5 1294 San Mateo Four miles northeast of Half Moon Bay, on west side of Cahill Ridge, near headwaters of Pilarcitos Creek 150 Comment
  CAS-BOT-BC243833  Castilleja latifolia Peter H. Raven 1950-4-30 1961 San Mateo Montara 24 Comment
  CAS-BOT-BC243835  Castilleja latifolia Peter H. Raven 1950-4-16 1782 San Mateo Colma Canyon, San Bruno Mts. 182 Comment
  JEPS103897  Castilleja latifolia T. I. Chuang and F. M. Chuang 1991-6-29 7851 San Mateo Ca. 1/3 mile south of Pescadero State Beach Comment
  JROH3997  Castilleja rubicundula subsp. lithospermoides D. E. Breedlove 1971-5-31 19360 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH4007  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24025 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD123053  Castilleja rubicundula subsp. lithospermoides Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  JEPS47427  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-26 1425 San Mateo 0.4 mi from Lobitos Creek rd. jct. rd. with Verde Road (old highway) (above Lobitos Creek valley) Comment
  JEPS103891  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  JEPS15590  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney, Cliff Fenneman and George Bacigalupi Jr. 1954-8-3 4737 San Mateo slopes directly above Edgemar (on the old coast highway connection with Skyline Boulevard) 76 Comment
  JEPS19720  Castilleja wightii Peter H. Raven 1957-6-24 10964 San Mateo just s Linda Mar Comment
  JEPS34325  Castilleja wightii L. R. Heckard and Rimo Bacigalupi 1963-7-2 1330 San Mateo Common along old county road over San Pedro and Montara Mountains; northern flank of San Pedro Mountain. Comment
  JEPS34327  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1333 San Mateo nw slope Montara Mt. (above summit of old county road) 304 Comment
  JEPS60422  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-21 6662 b San Mateo about 2 mi s Half Moon Bay road junction and Skyline Boulevard Comment
  UC198266  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  POM283640  Castilleja wightii Lyman Benson 1930-4-7 2046 San Mateo Moss Beach. Pacific Ocean Bluffs. 15 Comment
  RSA517382  Castilleja wightii L. R. Heckard 1963-7-18 3142 San Mateo Along La Honda road from SkyLonda to LaHonda, 2 miles below (SW) junction with Skyline Blvd. 366 Comment
  CAS-BOT-BC39389  Caulanthus lasiophyllus Ned Cahill 1974-4-29 170 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC40391  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  JEPS127814  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-4-7 78 San Mateo Comment
  CAS-BOT-BC39388  Caulanthus lasiophyllus W. R. Dudley 1894-4-24 s.n. San Mateo Santa Cruz Peninsula. San Mateo. Comment
  UCD114587  Caulanthus lasiophyllus Ronald E. Dengler 1960-4-3 3 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  POM136267  Ceanothus X regius C. F. Baker 1902-5-10 804 San Mateo Kings Mountain. Comment
  CAS-BOT-BC51603  Ceanothus oliganthus var. sorediatus Brandegee 1890-5-1 38 San Mateo Mts. between San Francisco and Santa Cruz Comment
  CAS-BOT-BC51605  Ceanothus oliganthus var. sorediatus Brandegee 1889-4-1 38 San Mateo Mts. bet. San Francisco and Santa Cruz Comment
  JROH3527  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-9-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Preston's ravine, Searsville Comment
  CAS-BOT-BC51241  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  SBBG50603  Ceanothus papillosus R. T. Stahmer Jr. 1972-3-24 11 F San Mateo Huddart Park, Woodside Comment
  SEINET12209941  Ceanothus papillosus J. D. McMurphy 1906-1 13 San Mateo 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
  CAS-BOT-BC52286  Ceanothus thyrsiflorus Brandegee 1890-4-1 19 San Mateo San Gregorio Comment
  CAS-BOT-BC52309  Ceanothus thyrsiflorus Josephine D. Randall 1907-6-29 322 San Mateo Kings Mt. Comment
  JROH588  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  POM177456  Centaurea calcitrapa L. R. Abrams, I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  UC172082  Centaurea calcitrapa Harriet A. Walker 1913-8-14 3085 San Mateo Burlingame Comment
  CAS-BOT-BC277071  Centaurea melitensis Elizabeth McClintock; Paul Reeberg 1988-7-13 s.n. San Mateo San Bruno Mountains. Near the southwest corner of Guadalupe Valley 76 Comment
  CAS-BOT-BC277121  Centaurea melitensis Margaret A. Barry 1937-6-22 167 San Mateo Exposed top of Coal Mine Ridge Comment
  CAS-BOT-BC277230  Centaurea solstitialis John H. Thomas 1958-3-19 7044 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC277228  Centaurea solstitialis Lawrence Beane 1949-5-30 399 San Mateo Atherton Comment
  CAS-BOT-BC277229  Centaurea solstitialis Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  JROH609  Centaurea solstitialis John Hunter Thomas 1984-9-6 23477 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389675  Centaurium tenuiflorum Maryann Danielson 1969-7-17 s.n. San Mateo Huddart Park along road below residence Comment
  UC89050  Centromadia pungens subsp. pungens K. Brandegee 1901-9-1 San Mateo South San Francisco Comment
  CAS-BOT-BC279326  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  SBBG32413  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Dr and California Drive 9 Comment
  CAS-BOT-BC388390  Cerastium glomeratum Fred Hemphill 1973-4-15 670 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1691  Cerastium glomeratum John H. Thomas 1968-3-17 14191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311136  Cerastium glomeratum A. D. E. Elmer April, 1903 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  POM193985  Ceratophyllum demersum Roxana S. Ferris 1920-9-3 2042 San Mateo In upper Mud Lake, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  RSA15269  Cercocarpus betuloides Carl B. Wolf 1928-3-2 233 San Mateo On hillside above Searsville Lake, Comment
  CAS-BOT-BC135472  Cercocarpus betuloides var. betuloides K. Hofpaugh 1929-5-6 585 San Mateo La Honda Grade Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1821  Chenopodium californicum Richard L. Garber 1971-5-11 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC497726  Chlorogalum pomeridianum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH4643  Chlorogalum pomeridianum var. pomeridianum T. H. Lamb 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge near the Searsville Dam Comment
  RSA133889  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1958-6-11 7222 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  POM290670  Chlorogalum pomeridianum var. pomeridianum Lyman Benson 1930-5-20 2162 San Mateo La Honda Grade, above Lake Searsville, Santa Cruz Mountains 305 Comment
  CDA33536  Chondrilla juncea John Beall 2010-6-21 PDR# 1621666 San Mateo San Carlos, city block of El Camino Real, Olive Street, Arroyo St, & Laurel Street. 0 Comment
  CAS-BOT-BC191594  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-5-1 4793 San Mateo San Pedro Comment
  JEPS57718  Chorizanthe cuspidata var. cuspidata William S. Cooper 1925-5-28 12 San Mateo Salada Comment
  CDA28831  Chrysolepis chrysophylla D. G. Kelch 2009-6-9 9 .4 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  RSA121897  Chrysolepis chrysophylla C. M. Belshaw 1936-1-25 1462 San Mateo Kings Mountain road, 4.5 miles west of Woodside; South Coast Range. Comment
  RSA212149  Chrysolepis chrysophylla L. S. Rose 1970-7-15 70073 San Mateo Kings Mountain. 915 Comment
  JROH2581  Cicendia quadrangularis John H. Thomas 1958-5-10 7154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing in grassy openings among oaks to the north of the top of the ridge. Comment
  CAS-BOT-BC277881  Cirsium brevistylum Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountains. Wax Myrtle Ravine 121 Comment
  CAS-BOT-BC277891  Cirsium brevistylum Peter H. Raven 1957-6-24 968 San Mateo 0.6 miles s. of San Gregorio Beach Comment
  POM203705  Cirsium brevistylum E. C. Sutliffe 1933-7-26 s.n. San Mateo Lobitos Canyon. Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CDA1227  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  UC1416521  Cirsium fontinale var. fontinale George E. Pilz 1965-7-12 114 San Mateo e side of Crystal Springs Reservoir South Coast Ranges 121 Comment
  UC894973  Cirsium fontinale var. fontinale Lewis S. Rose 1933-6-9 33223 San Mateo Crystal Springs Lake Comment
  SEINET14157452  Cirsium fontinale var. fontinale W. N. Suksdorf San Mateo Comment
  RSA0021449  Cirsium lanceolatum E. A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley. Near Baden Station Comment
  UC30792  Cirsium occidentale var. candidissimum J. Burtt Davy 1895-4-20 1053 San Mateo Lake Pilarcitos Comment
  UC30885  Cirsium occidentale var. venustum J. Burtt Davy 1895-4-20 1083 San Mateo San Mateo Creek Comment
  CAS-BOT-BC280136  Cirsium occidentale var. venustum John Thomas Howell 1939-6-16 14747 San Mateo Kings Mt. Comment
  RSA101025  Cirsium occidentale var. venustum G. Oberlander 1949-6-25 251 San Mateo E of Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC280509  Cirsium quercetorum John H. Thomas 1961-5-14 9378 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CAS-BOT-BC280517  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  RSA0070862  Cirsium quercetorum E. B. Copeland 1903-6-7 3316 San Mateo Montara Point. Comment
  SEINET11832881  Cirsium quercetorum Unknown 1932-1 9149 San Mateo near Spring Lakes Comment
  UC962069  Cirsium quercetorum E. E. Gilbert 1952-5-23 San Mateo e margin of Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC285860  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  SD30683  Cirsium vulgare Edith A. Purer 1933-8-13 5406 San Mateo Santa Clara Valley, near Baden Station. Comment
  JROH1830  Cistus incanus D. E. Breedlove 1971-5-31 19350 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC172091  Clarkia davyi Peter H. Raven 1950-6-3 22301 San Mateo Roadside cut, Millbrae Ave., Millbrae 91 Comment
  CAS-BOT-BC163978  Clarkia purpurea subsp. quadrivulnera Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house Comment
  CAS-BOT-BC164566  Clarkia purpurea subsp. viminea John H. Thomas 1971-5-2 15844 San Mateo Near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City 304 Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  SFV16946  Clarkia purpurea subsp. viminea J. N. Hogue 1980-9-1 81 .1 San Mateo Santa Cruz Mountains Near La Honda. Comment
  CAS-BOT-BC165156  Clarkia rubicunda Peter H. Raven 1957-6-24 10962 San Mateo Along State Highway 1, just south of Linda Mar Comment
  JROH3032  Clarkia rubicunda John Hunter Thomas 1983-7-7 22815 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1071884  Clarkia rubicunda H. and M. Lewis 1951-6-28 862 San Mateo 0.6 mi s of road to Redwood City (Hwy. 1); Tunitas Creek Comment
  UC930770  Clarkia rubicunda Mrs. Phipps July 1922 San Mateo Tunitas Creek Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  HSC23947  Clarkia rubicunda Mary Katherine Wicksten 1971-7-19 175 San Mateo Huddart Park Comment
  RSA18311  Clarkia rubicunda Carl B. Wolf 1927-7-14 600 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET8726157 Image available Clarkia rubicunda Peter H. Raven 1957-1 10954 San Mateo State Highway 5 (Skyline Boulevard), 2.6 miles north of Redwood City turnoff, on serpentine. Comment
  RSA73309  Clarkia rubicunda subsp. blasdalei F. W. Peirson 1925-9-13 6423 San Mateo Rockaway beach Comment
  CAS-BOT-BC439291  Claytonia exigua subsp. exigua D. K. Gillespie 1930-4-21 9222 a San Mateo Emerald Lake near Redwood City. Comment
  JROH3331  Claytonia exigua subsp. exigua John H. Thomas 1958-2-15 6992 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM164075  Claytonia exigua subsp. exigua C. F. Baker 1903-4-6 1884 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439987  Claytonia perfoliata subsp. mexicana Fred Hemphill 1973-4-22 698 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC439991  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-2-18 2729 San Mateo Brisbane Comment
  JEPS127812  Claytonia perfoliata subsp. perfoliata Adam C. Schneider with C. Matt Guilliams 2013-4-7 76 San Mateo Comment
  JROH3353  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1988-4-6 24371 San Mateo Jasper Ridge Biological Preserve, Stanford University; road near dam Comment
  SEINET182860 Image available Claytonia perfoliata subsp. perfoliata John Campbell 1925-1-26 San Mateo Burlingame. Comment
  JROH3403  Clematis lasiantha John H. Thomas 1956-4-7 5628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3416  Clematis lasiantha John H. Thomas 1979-4-12 19450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10609  Clematis lasiantha E. C. Carbett 1961-4-8 284 San Mateo Searsville L Park at head of San Francisquito Cr Comment
  SEINET12087591  Clematis lasiantha L. R. Abrams 1914-1 5076 San Mateo Woodside 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
  CAS-BOT-BC499370  Clintonia andrewsiana J. H. Thomas 1954-6-11 4269 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  SEINET12044200  Clintonia andrewsiana D. D. Keck 1932-1 1797 San Mateo 1 mi W of Skyline Blvd. on La Honda Rd, Santa Cruz Mts Comment
  POM273510  Collinsia heterophylla Lyman D. Benson 1931-4-26 2759 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  RSA218013  Collinsia heterophylla Phillip Wheeler 1965-5-7 s.n. San Mateo Buckeye Canyon. Comment
  JROH4015  Collinsia heterophylla var. heterophylla John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS85167  Collinsia multicolor Roy E. Buck 1987-5-2 566 San Mateo on ne-facing slope along Crystal Springs Rd. ca 300 m n Woodridge Rd. jct. (1.5 air km nne of confluence of San Mateo and Polhemus Creeks); Hillsborough, Canyon of San Mateo Creek 33 Comment
  CAS-BOT-BC240936  Collinsia multicolor Miss E. Cannon No date on label s.n. San Mateo Hills near the Bay, South San Francisco Comment
  POM14894  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake. Comment
  JROH209  Conium maculatum John H. Thomas 1968-5-22 14462 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  CAS-BOT-BC216009  Convolvulus Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC389736  Convolvulus J. Lovelle 1973-7-22 19 San Mateo Mt. Ellen Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UCD18542  Convolvulus arvensis Roman Gankin 1950-7-4 10 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  RSA0059778  Convolvulus subacaulis LeRoy Abrams 1902-5-4 2399 San Mateo Woodside. Comment
  CAS-BOT-BC285992  Conyza bonariensis W. Knight; I. Knight 1966-10-4 2042 San Mateo San Bruno Mountain. Crocker hills marsh between Geneva and Guadalupe parkway Comment
  CAS-BOT-BC288966  Conyza floribunda John Thomas Howell 1975-9-25 51508 San Mateo At summit, San Bruno Mt 396 Comment
  JROH4029  Cordylanthus pilosus subsp. pilosus John H. Thomas 1974-8-11 17508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC101478  Corethrogyne filaginifolia C. F. B. 1902-5-10 810 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC209817  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda 91 Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  CAS-BOT-BC210355  Cornus sericea J. H. Thomas 1954-4-3 3817 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  JROH1873  Cornus sericea subsp. sericea John Hunter Thomas 1983-4-21 21643 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC1191448  Coronopus didymus Malcolm A. Nobs, S. Galen Smith 1949-8-26 1594 San Mateo at mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  SD27760  Corylus cornuta var. californica Carl B. Wolf 1927-2-26 223 San Mateo La Honda Grade 305 Comment
  CAS-BOT-BC452289  Cotoneaster franchetii Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain; Colma Canyon Comment
  CAS-BOT-BC344964  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH3642  Cotoneaster pannosus John Hunter Thomas 1983-4-28 21777 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack Comment
  CAS-BOT-BC287303  Cotula australis W. R. Dudley 1909-10-4 s.n. San Mateo North pond near Mussel Rock Comment
  CAS-BOT-BC287305  Cotula australis Walter & Irja Knight 1965-2-28 874 San Mateo San Bruno Mt. Ridge 0.25 mile E parking lot Comment
  CAS-BOT-BC291415  Cotula coronopifolia Josephine D. Randall 1911-3-27 s.n. San Mateo Between Pacific Grove and Moss Beach, Monterey Peninsula Comment
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Oct 27 2021
  CAS-BOT-BC291461  Cotula coronopifolia Phillip C. Wheeler 1965-5-8 s.n. San Mateo Point Sierra, San Bruno Mountain Comment
  CAS-BOT-BC427831  Crassula connata John H. Thomas 1956-4-7 5626 San Mateo Jasper Ridge, about 3.5 miles SW of Stanford University. 182 Comment
  CAS-BOT-BC427840  Crassula connata Margaret A. Barry 1937-5-15 129 San Mateo Coal Mine Ridge. Comment
  JEPS50008  Crassula connata var. erectoides W. L. Jepson 1921-4-3 9106 San Mateo Colma Comment
  CDA25811  Crataegus monogyna D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH3652  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH668  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1986-6-7 24082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  JROH4983  Crypsis schoenoides John Hunter Thomas 1980-11-27 20194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area Comment
  JROH1360  Cryptantha flaccida John H. Thomas 1975-5-26 17898 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15763  Cryptantha leiocarpa Toni Corelli 2010-5-17 627 San Mateo Pescadero State Beach and Marsh Natural Preserve, west side of Hwy. 1, along trail in dunes south of north parking lot 6 Comment
  JROH5808  Cryptantha micromeres Herb Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. [William] Cooper trail between [plots] #4 & #5 [in the Westridge area, Portola Valley, CA south of the Preserve boundary]. Comment
  JROH1373  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1382  Cryptantha microstachys John Rawlings 2011-6-14 1068 San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-slope along Trail b. 142 Comment
  JROH5670  Cryptantha microstachys John Rawlings 2015-5-7 1264 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Rd E south side of Big Inlet. 117 Comment
  UC1086215  Cupressus abramsiana C. McMillan 1951-1-1 1621 San Mateo Butano Ridge Comment
  UC971944  Cupressus abramsiana C. McMillan, P. McMillan, R. Bacigalupi, L. Heckard, H. Dutton 1951-9-1 1620 San Mateo n of Big Basin (Butano Ridge, on sandstone slope, (The cypress area includes common corner of sections 11, 12, 13, and 14 of T8S R4W, Mount Diable Base and Meridian...)); Santa Cruz Mountains,Santa Cruz quadrangle, Butano Ridge Comment
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Sep 9 2014
  UC903434  Cupressus abramsiana unknown San Mateo on the n bank of the North Fork of Butano Creek North Fork of Butano Creek ((common corner of Section 11 and 12, and 13 and 14, range 4W) Comment
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Nov 11 2011
  SEINET3863377 Image available Cupressus macrocarpa Barbara Schneider 1963-2-21 18 San Mateo By ocean. One intersection N of Skyline Blvd. and Westridge Ave. on Skyline Blvd.; 0 30 Comment
  JROH1860  Cuscuta occidentalis John Rawlings 2011-10-18 1095 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  CAS-BOT-BC287326  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287344  Cynara cardunculus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple St 7 Comment
  POM286864  Cynoglossum grande Lyman Benson 1929-3-2 988 San Mateo Hill above Lake Searsville. Comment
  SD16063  Cynoglossum grande Jane T. Turner 1933-4-19 3719 San Mateo Near Emerald Lake Comment
  JROH4390  Cyperus eragrostis John H. Thomas 1974-10-29 17647 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  POM290779  Cyperus eragrostis Lyman Benson 1937-7-8 8446 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 Comment
  CAS-BOT-BC257352  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
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  SEINET3909461  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. & California Dr.; 0 9 Comment
  JROH4402  Cyperus erythrorhizos Toni Corelli 2008-10-1 347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. 103 Comment
  CAS-BOT-BC198209  Cytisus striatus Rosemary Leen 1985-5-23 s.n. San Mateo Northeast Ridge, near Guadelupe Valley Rd., San Bruno Mountain Comment
  CAS-BOT-BC198211  Cytisus striatus Elizabeth McClintock; Paul Reeberg 1988-4-7 s.n. San Mateo Base of Quarry, San Bruno Mountains Comment
  JROH5020  Dactylis glomerata John Hunter Thomas 1980-5-27 19990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5031  Dactylis glomerata W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, down trail to meadow, turn left -- all along road before bridge over creek. Comment
  CAS-BOT-BC192236  Danthonia californica E. H. Quayle 1920-5-2 714 San Mateo Moss Beach Comment
  JROH5034  Danthonia californica Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In grassland about 200' N.E of serp. Comment
  SEINET10860712  Danthonia californica Adolph D. E. Elmer Elmer 4707 San Mateo Crystal Springs Lake. Comment
  UC872608  Datisca glomerata Roxana Stinchfield 1915-10-14 257 San Mateo San Francisquito Creek; Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  SJSU15419  Datura stramonium Toni Corelli 2011-8-31 718 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  UC1122940  Daucus pusillus N. K. Carlson 1935-6-29 108 San Mateo 1 mi. s. Pescadero; Santa Cruz Quad. Comment
  UC897706  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 Comment
  CAS-BOT-BC299188  Deinandra corymbosa subsp. corymbosa A. D. E. Elmer 1903-7-1 4963 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299203  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1909-5-25 s.n. San Mateo Half Moon Bay Comment
  CAS-BOT-BC299199  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Bill Road, Crystal Lake Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  CAS-BOT-BC299226  Deinandra corymbosa subsp. corymbosa Phillip C. Wheeler 1965-8-16 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  CAS-BOT-BC9230  Delphinium decorum R. C. Bacigalupi 1922-3-1 s.n. San Mateo Near coast, vicinity of Pigeon Point Comment
  CAS-BOT-BC9235  Delphinium decorum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain, Owl's canyon Comment
  SD37298  Delphinium decorum Edith A. Purer 1933-4-18 3632 San Mateo Above Emerald Lake Comment
  SEINET5546959  Delphinium decorum H. S. Gentry 1931-1 80 San Mateo Collected 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC10287  Delphinium hesperium W. R. Dudley 1905-6-19 s.n. San Mateo Above Alpine School House, Black Mtn. Comment
  JROH3442  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC116526  Delphinium patens subsp. patens C. B. Wolf 1929-4-26 3659 San Mateo Woodside Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7933  Delphinium variegatum George Thomas Oberlander 1950-5-28 985 San Mateo near Lower Crystal Springs Lake Comment
  CAS-BOT-BC33190  Delphinium variegatum subsp. variegatum David Daniels Keck 1933-5-11 2309 San Mateo Crystal Springs Lake. Comment
  JROH3467  Delphinium variegatum subsp. variegatum John Hunter Thomas 1980-5-6 19926 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
  SBBG33499  Delphinium variegatum subsp. variegatum A. D. E. Elmer -May-1903 4796 San Mateo Crystal Springs Lake Comment
  SEINET10476252  Dendromecon rigida Mary Susan Taylor 1978-8-30 Taylor 1865 San Mateo Comment
  CAS-BOT-BC628  Dendromecon rigida subsp. rigida Daniel Cohen 1953-5-9 83 San Mateo Near Skylind Drive on La Honda Road. Comment
  POM205845  Deschampsia cespitosa E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC192633  Deschampsia danthonioides David D. Keck 1932-4-29 1448 San Mateo Redwood City Comment
  JROH5053  Deschampsia danthonioides John Hunter Thomas 1989-5-3 24653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC201910  Deschampsia elongata W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mt. Comment
  JROH5061  Deschampsia elongata John Hunter Thomas 1977-6-16 18773 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC906  Dicentra chrysantha Alice Eastwood 1915-5-30 4519 San Mateo Mt. Diablo Comment
  CAS-BOT-BC500896  Dichelostemma capitatum Mary Helen Kelson 1956-4-22 137 San Mateo Albert Way, Hillsborough, 1 mile from Skyline Blvd. Comment
  CAS-BOT-BC500900  Dichelostemma capitatum H. A. Dutton 1900-2-18 s.n. San Mateo Woodside Serpentine along N. slope Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  JROH4664  Dichelostemma congestum John Hunter Thomas 1977-6-16 18777 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC150451  Diplacus aurantiacus Paul Arnaud 1941-4-19 s.n. San Mateo After Hesler Farm entrance, Redwood City Comment
  CAS-BOT-BC150462  Diplacus aurantiacus Phillip Wheeler 1965-6-14 s.n. San Mateo Gladys Canyon in Brisbane Comment
  CDA19177  Diplotaxis tenuifolia D. Pendleton 2001-5-31 PDR 064471 San Mateo San Francisco Bay Peninsula; Burlingame. 0 Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JROH4197  Dirca occidentalis Miss A. M. Patterson 1906-2-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4206  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET3820684 Image available Dirca occidentalis Lewis S. Rose 1933-3-2 33002 San Mateo San Andreas Lake. Comment
  SEINET4690536 Image available Dirca occidentalis John P. Young 1925-1 San Mateo Burlingame Comment
  SEINET10776854 Image available Dirca occidentalis Lewis S. Rose 1939-4-12 Rose 39060 San Mateo Crystal Springs Lake 152 Comment
  UC961171  Disporum hookeri G. H. Ward 1950-4-8 949 San Mateo 1 mi n of La Honda Comment
  JEPS61835  Disporum smithii Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
  CAS-BOT-BC195719  Distichlis spicata Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Black Point, San Bruno Comment
  UCD64379  Distichlis spicata var. stolonifera A. A. Beetle 1942-10-1 1888 San Mateo Near San Mateo, borders of San Francisco Bay. Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  JROH1510  Draba verna John Hunter Thomas 1983-4-5 21331 San Mateo Jasper Ridge Biological Preserve, Stanford University; road below dam Comment
  CAS-BOT-BC159538  Drymocallis glandulosa var. glandulosa Le Roy Abrams 1902-5-20 2466 San Mateo King's Mountain Comment
  CAS-BOT-BC159504  Drymocallis glandulosa var. glandulosa Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Grassy slope above Hillside Blvd., South San Francisco - San Bruno Mountain Comment
  CAS-BOT-BC67879  Dryopteris arguta John H. Thomas 1961-5-7 9296 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC67883  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH32  Dryopteris arguta John H. Thomas 1976-4-2 18076 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA176874  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biologicl Experimental Area about 5 miles SW of Palo Alto. Comment
  UC1063780  Dryopteris arguta T. Tyrrell 1928-9-26 6 San Mateo 2 mi s San Gregorio (Plot 13); Santa Cruz Quadrangle 91 Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67885  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  CAS-BOT-BC410873  Dudleya caespitosa E. M. Zeile 1921-4-30 52 San Mateo Salada Comment
  UC420665  Dudleya farinosa Franklin P. Nutting 1893-7-15 San Mateo San Bruno Hill Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay Comment
  JROH1824  Dysphania multifida John H. Thomas 1976-10-26 18408 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  CAS-BOT-BC208923  Echinochloa crus-galli Paul Reeberg; Jake Sigg; Peter Rubtzoff 1991-8-10 s.n. San Mateo P.G.&E. Marsh - San Bruno Mountains Comment
  UC1224611  Echium John H. Thomas 1964-6-28 10436 San Mateo ca. 1.1 mi. e. Half Moon Bay (on rd. to Crystal Springs Lake) Comment
  HSC94173  Echium lusitanicum Gordon Leppig 2000-5-24 1384 San Mateo Hwy. 101 between Montara and Linda Mar Comment
  CAS-BOT-BC112956  Eleocharis macrostachya Copeland 1903-3-1 3340 San Mateo Searsville Comment
  CAS-BOT-BC112960  Eleocharis macrostachya Adolph Daniel Edward Elmer 1903-7-1 4767 San Mateo San Pedro. Comment
  SEINET7586900 Image available Eleocharis palustris Charles Piper Smith 1905-4-26 875 San Mateo Portola, Searsville Lake. 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
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  SJSU15748  Elymus californicus John Rawlings 2015-5-11 1570 San Mateo Butano Creek near the state park boundary (and also Little Butano Cr along the six Bridges Trail) 152 Comment
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Oct 30 2017
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  UCD61811  Elymus glaucus Beecher Crampton 1962-6-11 6497 San Mateo N. city limits of Pacfica; along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  CAS-BOT-BC203684  Elymus glaucus subsp. glaucus Ned Cahill 1974-5-18 301 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5112  Elymus glaucus subsp. glaucus W. Lennihan 1989-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 10, on hill by trail. Comment
  CAS-BOT-BC235206  Elymus multisetus Ned Cahill 1974-5-30 316 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5123  Elymus multisetus John H. Thomas 1975-5-26 17910 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA582099  Elymus multisetus D. D. Keck 1932-5-6 1469 San Mateo Belmont Comment
  UCD62574  Elymus repens R. G. Lander 1958-10-16 San Mateo San Mateo. Comment
  CDA2063  Elytrigia repens R. G. Lauder 1958-10-2 1451 San Mateo San Mateo. 0 Comment
  JROH3047  Epilobium brachycarpum John Hunter Thomas 1988-10-17 24601 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
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Jul 12 2015
  CAS-BOT-BC166518  Epilobium canum subsp. canum James McMurphy 1906-8-24 s.n. San Mateo Los Trancos Creek Comment
  RSA184862  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  RSA40474  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Santa Cruz Mountain Peninsula: Guadalupe Valley Comment
  RSA175071  Epilobium ciliatum subsp. watsonii Robert F. Thorne, Percy C. Everett 1963-6-9 32211 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  JROH3062  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS112674  Epipactis helleborine Dean W. Taylor 2000-7-20 17431 San Mateo Montara Mountain; Scarper Peak, western slope of the peak near the summit; bordering the springbox serving the FAA facility on the summit 502 Comment
  CAS-BOT-BC57602  Equisetum telmateia Ira L. Wiggins 1925-4-1 1669 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC57617  Equisetum telmateia J. H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along highway 152 Comment
  JROH69  Equisetum telmateia subsp. braunii John H. Thomas 1976-4-2 18072 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  JROH5146  Eragrostis pectinacea var. pectinacea John Rawlings 2011-8-2 1079 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site. 71 Comment
  CAS-BOT-BC299884  Erechtites glomeratus Fred Hemphill 1973-5-14 804 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  RSA436025  Eremocarpus setiger E. A. Purer 1933-8-25 18243 San Mateo Skyline Drive Comment
  POM359361  Ericameria ericoides var. ericoides E. A. Purer 1933-8-25 5511 San Mateo Along Skyline Drive Comment
  JROH648  Erigeron canadensis John H. Thomas 1964-11-15 10524 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  JROH650  Erigeron canadensis John H. Thomas 1976-10-16 18399 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH5587  Erigeron foliosus var. foliosus Winkie Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Hillside Lab just south of Trail 7 152 Comment
  CAS-BOT-BC295083  Erigeron glaucus Robert Robertson 1954-5-1 123 San Mateo Pebble Beach 12 Comment
  CAS-BOT-BC295085  Erigeron glaucus Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain. Slope east of Parking Lot at summit of mountain Comment
  CAS-BOT-BC295093  Erigeron glaucus Saichi Kawahara 1968-6-15 431 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  JROH695  Erigeron sumatrensis Toni Corelli 2011-8-30 371 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Dennis Martin site, above San Francisquito Creek 71 Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  JROH2734  Eriodictyon californicum John Hunter Thomas 1992-7-24 25396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12271949  Eriodictyon californicum Unknown 1932-1 9151 San Mateo 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
  JEPS111095  Eriogonum gracile Zoe Ellis Chandik 1992-9-19 s.n. San Mateo Hwy 280 right-of-way, west side bordering Edgewood County Nature Preserve/San Francisco watershed lands (triangle) Comment
  SD88537  Eriogonum latifolium Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC1032117  Eriogonum latifolium N. K. Carlson 1935-6-29 102 San Mateo 1 mi s Pescadero; Santa Cruz Quadrangle Comment
  UC1442465  Eriogonum latifolium James L. Reveal 1968-8-6 San Mateo San Gregorio Beach Comment
  RSA162485  Eriogonum latifolium E. K. Balls 1963-5-22 12068 San Mateo 12.2 miles south from turn off to San Gregorio, State Highway #1 6 Comment
  SEINET11938061  Eriogonum latifolium E. A. Purer 1933-1 5379 San Mateo 2 mi S of Pigeon Point Comment
  UCSC007632  Eriogonum latifolium Randall Morgan 2004-7-23 4254 San Mateo Rockaway Beach Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  JEPS111096  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -4 San Mateo Edgewood County Park, along upper part of Clarkia Trail just as it enters chaparral Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  UCR80214  Eriogonum luteolum L. S. Rose 1937-9-21 37661 San Mateo Emerald Lake, west of Redwood City 160 Comment
  SEINET5330457  Eriogonum luteolum J. L. Reveal, John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, on oak covered hillsides south of San Francisquito Creek, on a low, serpentine ridge 183 Comment
  JEPS83607  Eriogonum luteolum var. luteolum Roy E. Buck, Randall A. Morgan 1984-6-17 504 San Mateo 5.7 km sw Redwood City (in area bounded by Hwy. I-280, Edgewood Rd., and Canada Rd.) 152 Comment
  JROH3239  Eriogonum luteolum var. luteolum Carol Zabel 2003-6-23 50 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b. Comment
  CAS-BOT-BC268995  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake Comment
  JROH3240  Eriogonum nudum var. auriculatum J. H. Thomas 1962-11-4 10013 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end. Comment
  OBI10996  Eriogonum nudum var. auriculatum Lewis S. Rose 1964-9-9 64074 San Mateo Emerald Lake, W of Redwood City 244 Comment
  CAS-BOT-BC269007  Eriogonum nudum var. auriculatum L. S. Rose 1927-5-24 s.n. San Mateo San Mateo Comment
  RSA766372  Eriogonum nudum var. auriculatum Delzie Demaree 1933-7-8 10423 San Mateo Spring Valley Road Comment
  SEINET11938128  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  SEINET11938131  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Bayshore Highway near Redwood City Comment
  CAS-BOT-BC304070  Eriophyllum confertiflorum Philip Wheeler 1965-5-12 s.n. San Mateo SW canyon below NBC towers, San Bruno Mt Comment
  SEINET3386802 Image available Eriophyllum confertiflorum Lewis S. Rose 1933-5-17 33176 San Mateo Redwood City. Comment
  JROH700  Eriophyllum confertiflorum var. confertiflorum Raymond R. White 1974-6-3 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  CAS-BOT-BC301264  Eriophyllum lanatum var. arachnoideum A. D. E. Elmer 1903-6-1 4397 San Mateo San Mateo Comment
  UC614530  Eriophyllum latilobum L. Constance 1938-5-16 2242 San Mateo Half Moon Bay Rd 2 mi sw San Mateo; San Mateo Creek 45 Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC301964  Eriophyllum staechadifolium John H. Thomas 1963-7-19 10188 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC301979  Eriophyllum staechadifolium Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In Colma Canyon Comment
  CDA5404  Eriophyllum staechadifolium var. artemisiifolium T. R. Haig 1959-6-22 2639 San Mateo Half Moon Bay. 0 Comment
  JROH2601  Erodium botrys John H. Thomas 1975-4-3 17704 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC874914  Eryngium armatum Alice Eastwood and John Thomas Howell 1938-6-26 6065 San Mateo Arroyo de los Frijoles Comment
  JROH237  Eryngium jepsonii H. J. Dengler 1968-6-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in low spot by trail in East Serpentine Comment
  CAS-BOT-BC54510  Erysimum capitatum D. D. Davis 1903-5-1 s.n. San Mateo La Honda grove. Comment
  CAS-BOT-BC54826  Erysimum franciscanum Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54843  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54845  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1938-4-3 806 San Mateo Crests and steep upper slopes of the San Bruno Hills. 365 Comment
  CAS-BOT-BC54856  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 908 a fl. 908b fr. San Mateo Just above and west of south end of San Andreas Lake. 213 Comment
  CAS-BOT-BC54870  Erysimum franciscanum Craig Martz 1985-4-15 205 San Mateo South end of Devil's Slide, both sides of SR1. From coast to saddle between San Pedro and Montara Mountain. 304 Comment
  RSA101842A  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -a San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA102128  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo 1 mile North of Sharp Park (Salada) Comment
  RSA396108  Erysimum franciscanum Quinn P. Sinnott 1976-2-9 602 San Mateo Path leading from Radio Road, northern end of San Bruno Mountains 305 Comment
  UC1034934  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 905 a&b San Mateo creek ravine below Crystal Springs Lake; San Mateo Cr. 60 Comment
  SJSU12766  Erysimum franciscanum S. L. Jones 1986-4-6 87 San Mateo Montara Mt 188 Comment
  CAS-BOT-BC403538  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403559  Eschscholzia californica Anne Constant 1955-5-28 201 San Mateo Pescadero Beach 7 Comment
  JEPS51735  Eschscholzia californica Dr. L. M. Newlon 1921-1 238 San Mateo sea shore from Salada to Mussel Comment
  JROH3099  Eschscholzia californica John H. Thomas 1975-5-26 17911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403558  Eschscholzia californica W. R. Ernst 1957-4-2 102 San Mateo Near junction of Highway 1 and Skyline Blvd. among San Francisco Headlands Comment
  CAS-BOT-BC202733  Euonymus occidentalis William R. Dudley 1895-6-6 4223 San Mateo Pescadero Cr. near Iverson's Comment
  CAS-BOT-BC202735  Euonymus occidentalis A. D. E. Elmer 1903-5-1 4317 San Mateo Butano Creek Comment
  JEPS9607  Euonymus occidentalis var. occidentalis Miss Susie Mott 1930-9-24 San Mateo Butano Canyon Santa Cruz Mts., Butano Canyon Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  CDA20071  Euphorbia lathyris J. Beall 2002-10-7 PDR 065872 San Mateo San Francisco Bay Area; 1/3 mi E of Butano Cutoff on Pescadero Creek Rd 0 Comment
  RSA181179  Euphorbia lathyris P. H. Raven 1964-9-13 19672 San Mateo Near Tunitas, north of San Gregorio. Comment
  JROH1968  Euphorbia oblongata Ann Lambrecht 2012-12-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beside footbridge on Trail 12 Comment
  SJSU8505  Euphorbia oblongata L. F. Wagner 1979-5-27 31 San Mateo San Francisquito Cr access rd N of Newell Rd bridge Comment
  JROH1979  Euphorbia spathulata John Hunter Thomas 1981-4-23 20471 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  UCD98886  Fallopia convolvulus J. D. Skoss 1948-7-25 47 San Mateo San Vicente Canyon near Montara. Comment
  JROH5150  Festuca arundinacea John Hunter Thomas 1979-5-22 19578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5156  Festuca arundinacea John Hunter Thomas 1985-5-21 23661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge. Comment
  JROH5171  Festuca arundinacea Toni Corelli 2001-5-5 245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near concrete pad above CO2 area in disturbed grassland and planting of Pinus radiata 112 Comment
  JROH5470  Festuca bromoides John H. Thomas 1968-5-3 14441 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET206289 Image available Festuca californica Rimo Bacigalupi, L. R. Heckard; J. Roof 1961-4-24 7613 San Mateo Just below rocky spur due north of true summit of San Bruno Mountain directly below and northeast of KQED radio station 343 Comment
  JROH5283  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5291  Festuca perennis John Hunter Thomas 1988-5-3 24439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD66325  Festuca rubra P. B. Kennedy 1914-7-5 San Mateo Moss Beach, Pacific Grove. Comment
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Nov 2 2021
  RSA140620  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  CDA34004  Fragaria californica D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .151 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  UC466552  Fragaria chiloensis R. L. Pendleton 1907-4-20 629 San Mateo Colma Comment
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD113234  Fragaria vesca W. A. Harvey; J. M. Tucker 1948-6-29 1705 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC457516  Fragaria vesca subsp. californica W. R. Dudley 1901-3-23 s.n. San Mateo Coal Mine Canyon, Santa Cruz Pennisula Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  CAS-BOT-BC52677  Frangula californica subsp. californica W. R. Dudley 1899-5-14 s.n. San Mateo Baden Brook hills Comment
  CAS-BOT-BC52681  Frangula californica subsp. californica Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  JEPS127867  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 170 San Mateo Crystal Springs Reservoir Comment
  JROH3572  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  CAS-BOT-BC211605  Frankenia salina Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 751 San Mateo Pt. San Bruno, San Bruno Mountain Comment
  RSA14513  Frankenia salina L. S. Rose 1933-7-20 33304 San Mateo Granada. Comment
  RSA391412  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  UC1140922  Fremontodendron californicum subsp. californicum W. R. Dudley 1897-12-29 San Mateo Santa Cruz Peninsula, Butano Creek Butano Creek; Santa Cruz Peninsula, Butano Creek Comment
  JROH4685  Fritillaria affinis John H. Thomas 1977-4-29 18573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC130144  Fritillaria affinis W. R. Dudley 1893-3-24 s.n. San Mateo Below B. Heywood's, Pescadero Creek Comment
  RSA794663  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University, Corte Madera Creek drainage area Comment
  JEPS4954  Fritillaria biflora Inez Smith 1915-3-15 San Mateo Hillsborough, El Nido Hillsborough; , El Nido Comment
  SEINET1783225  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 s. n. San Mateo Hillsboro. Comment
  CAS-BOT-BC130380  Fritillaria liliacea George Oberlander 1950-3-18 517 San Mateo East Upper Crystal Spr. Lake Comment
  RSA13540  Fritillaria liliacea H. E. Parks, S. T. Parks 1930-3-10 400 San Mateo Spring Valley Lakes Comment
  RSA289961  Fritillaria liliacea I. Smith 1915-3-15 s.n. San Mateo Hillsboro Comment
  SJSU115  Fritillaria liliacea Thelma Silva 1931-3-8 San Mateo Spring Valley, head of Pilarcitos Creek Comment
  CAS-BOT-BC290702  Fumaria Peter Rubtzoff; B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe 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
  UCD95125  Fumaria officinalis A. P. N. 1960-3-11 517 San Mateo Highway 1, south of Montara. Comment
  CAS-BOT-BC389682  Galium Mary Wicksten 1968-6-20 s.n. San Mateo Mr. [Mt.] Ellen trail - Memorial Park Comment
  RSA800331  Galium Peter Rubtzoff 1988-6-25 9928 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  RSA195511  Galium aparine John H. Thomas 1966-4-22 11566 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  JROH3795  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100976  Galium porrigens G. Oberlander 1949-7-30 292 San Mateo Cahill Ridge. San Francisco Watershed Reserve. Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  JROH3820  Galium triflorum Toni Corelli 2004-4-22 274 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 1 just past the first redwood grove 79 Comment
  HSC23986  Galium triflorum Mary Katherine Wicksten 1971-6-17 53 San Mateo Huddart Park on Chickadee Trail Comment
  POM58032  Gamochaeta ustulata E. B. Copeland 1903-6-18 3312 San Mateo Montara Point. Comment
  CAS-BOT-BC303468  Gamochaeta ustulata Paul F. Covel 1936-4-24 272 San Mateo Skyline Blvd Comment
  JROH792  Gamochaeta ustulata John Hunter Thomas 1979-5-18 19555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC194559  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  SEINET4041731  Garrya elliptica D. Demaree 1930-1 7312 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC278664  Gastridium phleoides C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Mill Cr. Comment
  JROH5187  Gastridium phleoides John H. Thomas 1977-4-29 18568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5192  Gastridium phleoides John Hunter Thomas 1983-5-31 22316 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near oval used for bicycle riding. Comment
  JROH5651  Gastridium phleoides John Rawlings 2014-5-23 1226 San Mateo Jasper Ridge Biological Preserve, Stanford University; just up-slope from the Boat Launch (aka Searsville Lab Landing) 104 Comment
  CAS-BOT-BC278713  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountain. Wax Myrtle Ravine 121 Comment
  RSA405456  Genista maderensis Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  CAS-BOT-BC219146  Genista monspessulana Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo above the intersection of San Bruno Avenue and Annis Comment
  CDA33991  Genista monspessulana D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .149 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  UCR101651  Geranium carolinianum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH2619  Geranium dissectum John Hunter Thomas 1983-5-23 22242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near shack side and low-flow crossing. Comment
  UC202809  Geranium dissectum A. D. E. Elmer Jun 1903 4730 San Mateo San Mateo Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  UCD103506  Geranium robertianum Carolyn Lundquist 1994-5-30 24 San Mateo Henrik Ibsen Park, 13800 Skyline Blvd. Woodside, CA. 609 Comment
  UC774606  Gilia achilleifolia subsp. achilleifolia Carl B. Wolf 1938-4-24 9401 San Mateo 1/4 mi sw San Francisquito Creek Bridge (Stanford University); , sw of San Francisquito Creek Bridge 60 Comment
  JROH3155  Gilia achilleifolia subsp. multicaulis John H. Thomas 1977-4-19 18533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38797  Gilia achilleifolia subsp. multicaulis E. A. Purer 1933-5-16 3638 San Mateo Alpine Road Comment
  RSA20368  Gilia angelensis C. B. Wolf 1938-4-24 9401 San Mateo 1/4 mile SW of the San Francisquito Creek bridge back of Stanford University. 61 Comment
  UC535968  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo near Searsville; near Searsville Comment
  SEINET8687951 Image available Glebionis segetum K. Thorne, J. Chandler 1986-7-25 4941 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  RSA128833  Gnaphalium beneolens Roxana S. Ferris 1920-9-3 2052 San Mateo Near upper Mud Lake, Coal Mine Ridge, Santa Cruz Mountain Peninsula Comment
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA3894  Gnaphalium chilense I. L. Wiggins 1929-7-4 3792 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach Comment
  RSA184920  Gnaphalium chilense L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mountain 122 Comment
  RSA22173  Gnaphalium luteoalbum L. R. Abrams, I. L. Wiggins 1939-6-3 431 San Mateo Ano Nuevo Point Comment
  POM58047  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Comment
  RSA218004  Gnaphalium ramosissimum Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge; Plants of San Bruno Mountain. Comment
  CDA6058  Gnaphalium stramineum A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  JEPS67910  Gratiola ebracteata L. R. Heckard and J. H. Thomas 1972-4-16 2893 San Mateo along Old Canada Road (private) ca 1 1/2 mi s Pulgas Water Temple ((sw of Upper Crystal Springs Reservoir)); sw of Upper Crystal Springs Reservoir 121 Comment
  SEINET11843442  Grindelia X paludosa E. A. Purer 1933-1 5414 San Mateo near Baden Station Comment
  SD12573  Grindelia camporum Edith A. Purer 1933-8-4 5414 San Mateo Flat area near Baden Station Comment
  CAS-BOT-BC304514  Grindelia hirsutula J. H. Thomas 1954-5-28 4233 San Mateo Along Bayshore Highway about 2 mi. south of San Francisco Airport Comment
  CAS-BOT-BC304531  Grindelia hirsutula J. T. Howell 1932-10-21 s.n. San Mateo Pigeon Point Comment
  CAS-BOT-BC304537  Grindelia hirsutula J. H. Thomas 1954-5-28 4243 San Mateo East facing slopes of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC304540  Grindelia hirsutula Alice Eastwood 1912-6-10 322 San Mateo Crystal Springs Comment
  CAS-BOT-BC304551  Grindelia hirsutula Margaret A. Barry 1937-6-22 161 San Mateo Slope on Coal Mine Ridge Comment
  CAS-BOT-BC304557  Grindelia hirsutula J. T. Howell 1933-12-5 11731 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  JEPS10208  Grindelia hirsutula Rimo Bacigalupi with G. T. Robbins 1954-6-18 4550 San Mateo road bank along Alpine Road 1/4 mi w Skyline Boulevard 701 Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  SEINET3146830  Grindelia hirsutula L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  UC483491  Grindelia hirsutula Ira L. Wiggins 1929-7-4 3799 San Mateo sea bluffs at Pescadero Beach Pescadero Beach Comment
  JROH818  Grindelia hirsutula John Hunter Thomas 1978-5-12 19203 San Mateo Jasper Ridge Biological Preserve, Stanford University; draw to Ridge from near the dam Comment
  JROH822  Grindelia hirsutula John Hunter Thomas 1981-5-25 20630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10614592 Image available Grindelia hirsutula Wilhelm N. Suksdorf 1913-6-23 Suksdorf 279 San Mateo Crystal Springs Lake. Comment
  SEINET7010152  Grindelia humilis R. A. Evers, Clara V. Evers 1975-8-24 115023 San Mateo Trailer Villa, Redwood City. Comment
  RSA0110999  Grindelia stricta var. angustifolia E. A. Purer 1933-8-26 5525 San Mateo Along highway. [No further location information.] Comment
  UC1132184  Hainardia cylindrica A. Hormay 1932-5-29 17 San Mateo San Bruno 1 Comment
  JROH439  Hedera helix John H. Thomas 1967-6-1 12974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC306532  Helenium bigelovii A. D. E. Elmer 1903-7-1 4968 San Mateo San Mateo Comment
  JROH834  Helenium puberulum Richard L. Garber 1971-7-13 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH835  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam Comment
  JROH840  Helenium puberulum John Hunter Thomas 1980-11-27 20178 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC1537048  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo along Skyline Blvd. to Salada Beach Road 304 Comment
  CAS-BOT-BC309536  Helenium puberulum Josephine D. Randall 1907-6-12 72 San Mateo Santa Cruz Peninsula. Portola Road near Stanford University Comment
  HSC23888  Helenium puberulum Mary Katherine Wicksten 1971-6-22 94 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  JEPS35430  Helenium puberulum James G. Daly 239 San Mateo San Gregorio watershed Santa Cruz Mts., San Gregorio Comment
  POM54388  Helenium puberulum A. D. E. Elmer 1903-07 4968 San Mateo San Mateo Comment
  JROH858  Helianthella californica var. californica John Hunter Thomas 1987-5-5 24255 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  CAS-BOT-BC224053  Helianthemum scoparium Fred Hemphill 1973-5-6 779 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224055  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Jasper Ridge near Stanford University Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC313451  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1902-5-11 2446 San Mateo Crystal Springs Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  CAS-BOT-BC314910  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 203 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JEPS23956  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo about 5 mi sw of Palo Alto; Jasper Ridge 152 Comment
  JROH873  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1988-8-21 24562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28541  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  UC134605  Hemizonia congesta subsp. luzulifolia C. F. Baker 1908-6-30 3350 San Mateo Crystal Springs Comment
  UC193427  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10232 San Mateo hills w Millbrae; Region of San Francisco Bay Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  POM56175  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-10-1 1739 San Mateo Pillar Point. Comment
  POM284877  Hemizonia corymbosa subsp. corymbosa Lyman Benson 1930-6-14 2161 San Mateo San Gregorio. 61 Comment
  RSA133900  Hemizonia luzulifolia John H. Thomas 1958-6-11 7228 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  POM195795  Hemizonia luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs. Comment
  POM360310  Hemizonia luzulifolia L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  SEINET5782066 Image available Hemizonia pungens L. S. Rose 1941-10-10 41463 San Mateo along Bayshore Blvd, San Mateo Comment
  SEINET5554255  Heracleum lanatum H. S. Gentry 1931-1 81 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH885  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1977-2-20 18469 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH900  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-9 25044 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176207  Hesperolinon congestum H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Comment
  RSA187337  Hesperolinon congestum Fay Gilbert 1920-6-1 s.n. San Mateo Back of Redwood City. Comment
  SJSU12753  Hesperolinon congestum S. C. Sommers 1986-5-8 San Mateo W side Edgewood County Park near junction of Hwy 280 & Edgewood Rd, Redwood City Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148469  Heteromeles arbutifolia Walter Knight; Irja Knight 1965-4-11 1001 San Mateo Guadalupe Road - San Bruno Mountain Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  JROH3675  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  RSA0072445  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  UC481555  Heteromeles arbutifolia H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  RSA0072444  Heteromeles arbutifolia L. S. Rose 1948-11-25 48241 San Mateo Woodside. 366 Comment
  SEINET11915764  Heteromeles arbutifolia Unknown 1929-1 7301 San Mateo Kings Mt Comment
  RSA0074498  Heterotheca camphorata L. R. Abrams 1901-09 2228 San Mateo Menlo Park. Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  OBI16088  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mtn, summit 366 Comment
  SD30675  Heterotheca sessiliflora subsp. bolanderi Edith A. Purer 1933-8-4 5400 San Mateo Along Bayshore Highway near Redwood City. Comment
  CAS-BOT-BC310767  Heterotheca sessiliflora subsp. echioides Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain, Summit 365 Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420892  Heuchera micrantha var. diversifolia George Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon Comment
  UC897793  Hieracium albiflorum Lewis S. Rose 1939-6-16 39279 San Mateo Kings Mountain 670 Comment
  POM209883  Hieracium albiflorum D. D. Keck 1934-7-7 2927 San Mateo Kings Mountain, just east of summit. 549 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
  SEINET4584971  Hierochloe occidentalis R. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park Comment
  CAS-BOT-BC55440  Hirschfeldia incana Phillip Wheeler 1965-6-7 s.n. San Mateo San Bruno Mountains. Bottom Owls 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
  UCR121583  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4984 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA112371  Holodiscus discolor Josephine Randall 1907-6-29 336 San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  UCR121543  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC150067  Holodiscus discolor var. discolor David D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd., Santa Cruz Mountains Comment
  JROH3689  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  JROH3690  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  RSA60658  Hordeum brachyantherum I. L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  RSA785878  Hordeum brachyantherum Peter Rubtzoff 1976-5-22 8545 San Mateo 'Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC284675  Hordeum brachyantherum subsp. brachyantherum A. D. E. Elmer 1903-6-1 4851 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC284682  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  SJSU15413  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2010-5-21 671 San Mateo Pescadero State Beach and Marsh Natural Preserve. North Pond Trail 9 Comment
  UC163001  Hordeum brachyantherum subsp. brachyantherum Dr. E. B. Copeland 1903-6-10 3304 San Mateo Montara Point Comment
  UC909372  Hordeum brachyantherum subsp. brachyantherum Ira L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  JROH5227  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1980-5-20 19983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA107078  Hordeum brachyantherum subsp. californicum L. S. Rose 1956-5-7 56070 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  CAS-BOT-BC285045  Hordeum depressum John Thomas Howell No date on label 28969 San Mateo Redwood City Comment
  CAS-BOT-BC285151  Hordeum marinum subsp. gussoneanum W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Lake Comment
  JROH5245  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1984-4-24 23306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10831781 Image available Hordeum murinum Delzie Demaree 1932-3-27 Demaree 8957 San Mateo Moist bottoms. La Honda Comment
  SEINET11678403  Hordeum murinum E. A. Purer 1933-1 5372 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  RSA138172  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  JEPS34468  Horkelia californica L. R. Heckard and R. Bacigalupi 1963-7-2 1357 San Mateo Trail to Montara Peak (NW slope) above old county road 304 Comment
  RSA18459  Horkelia californica Carl B. Wolf 1927-6-29 548 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC536143  Horkelia californica L. R. Abrams 1926-5-26 11219 San Mateo San Bruno Hills near Daly City Comment
  CAS-BOT-BC536145  Horkelia californica J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  SEINET7097934  Horkelia californica subsp. californica 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
  UCD113404  Horkelia californica var. californica Collector unknown 1925-6-15 1680 San Mateo Pescadero-Santa Cruz Rd. Comment
  SBBG32394  Horkelia californica var. californica L. S. Rose 1966-8-20 San Mateo head of Colma Cyn, San Bruno Mtn 205 Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  UCD77838  Hosackia stipularis Robert E. Preston 2001-6-1 1538 San Mateo Ca. 7 mi nw of Boulder Creek. 658 Comment
  CAS-BOT-BC400964  Hypericum anagalloides Carl B. Wolf 1929-5-25 3729 San Mateo Pebble Beach so. of Pescadero Comment
  JEPS100821  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
Read comments
Oct 31 2021
  CAS-BOT-BC311391  Hypochaeris glabra D. D. Davis 1903-4-1 s.n. San Mateo Top of Searsville Ridge Comment
  JROH927  Hypochaeris radicata John H. Thomas 1973-5-5 16771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH936  Hypochaeris radicata John Hunter Thomas 1985-5-22 23679 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  SD38479  Iris douglasiana Marie Cummings 1933-4-14 16 San Mateo Half-Moon Bay. Comment
  JROH4426  Iris foetidissima Toni Corelli 2010-5-19 359 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 20, across from Douglas' iris site 85 Comment
  CAS-BOT-BC133649  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133653  Iris longipetala Roxana Stinchfield 1910-5-3 267 San Mateo Half Moon Bay - near town Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133664  Iris longipetala Alice Eastwood 1914-3-12 3751 San Mateo San Bruno Hills Comment
  RSA185842  Iris missouriensis John H. Thomas 1954-5-28 4240 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  RSA366830  Iris missouriensis Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  JROH4431  Iris pseudacorus John R. Barth 1963-4-13 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 103 Comment
  CAS-BOT-BC57728  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Black Mountain Comment
  CAS-BOT-BC57729  Isoetes howellii W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC340138  Jaumea carnosa Walter Knight; Irja Knight 1964-9-2 718 San Mateo San Bruno Mountain. At Pt. San Bruno Comment
  UCD133403  Jaumea carnosa Malcolm A. Nobs; S. Galen Smith 1949-8-26 1598 San Mateo Pescadero Creek. Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  CAS-BOT-BC352224  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10043 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  SEINET8544724  Juncus bufonius Charles Piper Smith 1905-4-1 728 San Mateo Stanford Univ. Roadside near Stockfarm bridge. Comment
  JROH4461  Juncus bufonius var. occidentalis John H. Thomas 1967-5-12 12888 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15769  Juncus bufonius var. occidentalis Toni Corelli 2010-5-13 621 San Mateo Pedro Point Headlands, Pacifica, CA. Along Arroyo Trail 167 Comment
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Sep 10 2021
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  JROH4479  Juncus occidentalis John H. Thomas 1967-5-10 12856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39185  Juncus occidentalis W. Plummer 1974-4-18 s.n. San Mateo Pescadero, Carlene Shade property. 0 Comment
  CAS-BOT-BC176165  Juncus patens Peter Rubtzoff; Roman Gankin 1975-9-11 8375 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC210051  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9261 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4041  Kickxia spuria John H. Thomas 1964-10-2 10514 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  RSA191942  Koeleria macrantha R. F. Thorne, P. Everett 1963-6-9 32229 San Mateo On top of San Bruno Mountain. 335 Comment
  RSA582055  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  UCD85838  Koeleria macrantha P. B. Kennedy 1916-5-7 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC273735  Koeleria pyramidata George Oberlander 1950-4-23 914 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC273733  Koeleria pyramidata Walter Knight; Irja Knight 1964-4-25 s.n. San Mateo San Bruno Mountain. Near Nike base Comment
  UCD159535  Lactuca D. S. Park 2011-4-13 283 San Mateo Alpine Rd, Portola Valley. Near construction site. Growing next to fence. Disturbed/shaded habitat. 230 Comment
  JROH951  Lactuca serriola John H. Thomas 1974-6-30 17459 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340702  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-BC341626  Lagophylla ramosissima J. McMurphy 1909-6-13 s.n. San Mateo San Bruno Hills Comment
  JROH2779  Lamium amplexicaule John H. Thomas 1979-4-7 19442 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC337895  Lasthenia Daniel Cohen 1953-5-9 70 San Mateo At Pescadero Comment
  CAS-BOT-BC339074  Lasthenia californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  CAS-BOT-BC339091  Lasthenia californica John H. Thomas 1971-5-2 15825 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  UCSB18865  Lasthenia californica John Schulte 1963-4-26 96 San Mateo collected 3.0 mi SW, along Jasper Ridge, between Santa Clara Valley and Santa Cruz Mountains UC Stanford - Jasper Ridge, UCS 152 Comment
  CAS-BOT-BC339069  Lasthenia californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC339081  Lasthenia californica W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Seal Cove Comment
  JROH5789  Lasthenia californica subsp. californica John Rawlings 2016-5-3 1781 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  JROH974  Lasthenia gracilis John H. Thomas 1966-4-22 11569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15210  Lasthenia gracilis Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve northwest of Trail 9 near the intersection of Road F and Trail 9. 189 Comment
  CAS-BOT-BC368182  Lasthenia minor V. F. Hesse 1964-5-26 3206 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  UCD133845  Lasthenia minor June McCaskill 1954-5-8 295 San Mateo Moss Beach. Comment
  RSA51309  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara. 15 Comment
  CAS-BOT-BC205027  Lathyrus jepsonii var. jepsonii W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. Road from Bay to Menlo Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  UCD106381  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  RSA152255  Lathyrus vestitus subsp. vestitus I. L. Wiggins 1925-04 1661 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  UCR121561  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4972 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2037  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-24 23297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  UCR252690  Lavatera arborea A. C. Sanders 2014-8-3 41237 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  CAS-BOT-BC321095  Layia gaillardioides W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC321072  Layia gaillardioides H. L. Mason 1921-7-14 s.n. San Mateo La Honda-Pescadero Road, near Pescadero Creek Comment
  CAS-BOT-BC321093  Layia gaillardioides W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula, hills SW of Baden Comment
  CAS-BOT-BC321117  Layia gaillardioides David D. Keck 1932-5-11 1764 San Mateo 1.5 miles NE of La Honda, Santa Cruz Mountains Comment
  CAS-BOT-BC327361  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  POM284972  Layia hieracioides Lyman Benson 1930-5-26 2130 San Mateo Stanford University; Lake Searsville. 152 Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  UCR256306  Layia hieracioides Peter Rubtzoff, Roman Gankin, Elizabeth McClintock, Bill Burley 1979-6-7 9289 San Mateo Central Coast, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC327455  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327464  Layia hieracioides John Thomas Howell 1944-6-11 19594 San Mateo 1.5 miles N of Felton Comment
  CAS-BOT-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-BC327479  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1085 San Mateo San Bruno Mountain; Devil's Arroyo Comment
  CAS-BOT-BC327508  Layia hieracioides L. R. Abrams 1907-8-26 s.n. San Mateo King's Mt., Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC327511  Layia hieracioides C. G. Pringle 1882-7-11 s.n. San Mateo Aptos Comment
Read comments
Oct 28 2021
  SEINET5556738  Layia hieracioides H. S. Gentry 1931-1 98 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC382081  Layia platyglossa Le Roy Abrams 1902-5-11 2442 San Mateo Crystal Springs Comment
  JROH1000  Layia platyglossa John Hunter Thomas 1981-4-23 20476 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH992  Layia platyglossa John H. Thomas 1956-4-7 5622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361731  Layia platyglossa Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC382087  Layia platyglossa W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula: Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lakes Comment
  POM284976  Layia platyglossa subsp. campestris Arthur L. Cohen 1935-4-21 624 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  POM298330  Layia platyglossa subsp. platyglossa D. D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake. 61 Comment
  RSA10278  Layia platyglossa subsp. platyglossa H. A. Barker 1927-5-14 659 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC527270  Lemna minuta Walter Knight; Irja Knight 1963-10-23 376 San Mateo Cow Trough Ravine, San Bruno Mt. Comment
  CAS-BOT-BC339115  Leontodon autumnalis R. E. Frenkel 1963-12-7 322 San Mateo San Francisco Water District, 1.5 miles north of Halfmoon [Half Moon] Bay Club 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-BC221525  Lepechinia calycina Daniel Cohen 1953-6-5 111 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC221531  Lepechinia calycina Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Area west of Crystal Cave Canyon Comment
  CAS-BOT-BC221537  Lepechinia calycina A. D. E. Elmer 1903-6-1 4416 San Mateo San Mateo Comment
  CAS-BOT-BC221540  Lepechinia calycina Fred Hemphill 1973-4-15 717 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2785  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC191843  Lepechinia calycina Edward Lee Greene 1887-6-12 San Mateo San Mateo Comment
  SEINET12277320  Lepechinia calycina Unknown 1933-1 10430 San Mateo Alpine Road Comment
  CAS-BOT-BC89218  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  CAS-BOT-BC89219  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  RSA285070  Lepidium latifolium J. T. Howell 1978-7-18 53189 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH1552  Lepidium nitidum John Hunter Thomas 1983-2-21 21283 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5775  Lepidium strictum John Rawlings 2016-3-8 1677 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14 uphill from dam spillway 108 Comment
  CAS-BOT-BC12948  Lepidium strictum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. In ground near Ocean Shore at Spanish town. Comment
  CAS-BOT-BC12949  Lepidium strictum Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountains. Randolph Avenue. South San Francisco. Comment
  POM176894  Lepidium strictum Helen M. Edwards 1917-2-8 s.n. San Mateo Stanford University. Campus. Comment
  RSA40290  Leptosiphon ambiguus L. S. Rose 1948-5-16 s.n. San Mateo Emerald Lake, west of Redwood City. 152 Comment
  JROH3172  Leptosiphon androsaceus John H. Thomas 1971-4-10 15750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5663  Leptosiphon androsaceus Herb Dengler 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA18092  Leptosiphon androsaceus C. B. Wolf 1929-4-24 3656 San Mateo south west end of Jasper Ridge, near Searsville Lake Comment
  CAS-BOT-BC226726  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Land due west of Lake Merced Comment
  UCD118865  Leptosiphon liniflorus Irene Brown 1959-5-15 148 San Mateo 6 miles south of entrance to refuge, San Francisco Game Refuge. 21 Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3194  Leptosiphon parviflorus John Hunter Thomas 1990-4-19 24810 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of large open grassland Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  POM197775  Lessingia arachnoidea John T. Howell 1926-10-9 2220 San Mateo Between Lake San Andreas and Crystal Springs Lake Comment
  POM55553  Lessingia arachnoidea C. F. Baker 1902-09 s.n. San Mateo Crystal Springs Lake. Comment
  UCD134048  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes, west of San Mateo. 243 Comment
  UC1745126  Lessingia arachnoidea Leslie Zander 2000-9-14 San Mateo just W of Crystal Springs Road (N or Tartan Trail Rd.); Hillsborough Comment
  JROH1013  Lessingia glandulifera var. glandulifera John H. Thomas 1975-5-26 17902 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1022  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-6-29 22714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1006  Lessingia glandulifera var. glandulifera G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  CAS-BOT-BC324176  Lessingia hololeuca W. R. Dudley 1897-11-15 s.n. San Mateo Los Troncos Road above Saloon Comment
  CHSC98696  Lessingia hololeuca Samantha Mackey Hillaire 2007-7-17 1244 San Mateo Northwest corner of Edgewood Park, approximately 1.5 mile southeast of the southern end of Upper Crystal Springs reservoir. Southeast corner of the intersection of Edgewood Road and Canada Road. Between park fence and Edgewood Road, on sides of well-used park path through rocks. UTM 10 562177E, 414659N. 146 Comment
  HSC23932  Lessingia hololeuca Mary Katherine Wicksten 1971-8-20 205 San Mateo Huddart Park below Redwood Shelter. Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD134052  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon Comment
  JROH5965  Lessingia pectinata var. tenuipes Ann Lambrecht, Alice Cummings 2017-6-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Road E overlook bend 118 Comment
  RSA195563  Leymus triticoides John H. Thomas 1963-5-20 10113 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH2987  Ligustrum vulgare John Rawlings 2012-5-23 1116 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  SEINET7876343 Image available Ligustrum vulgare A. T. Whittemore 2001-1 01 -020 San Mateo Garden of 418 Hillway Dr., Redwood City 98 Comment
  CAS-BOT-BC451669  Lilaea scilloides K. Hoppaugh 1929-5-8 164 San Mateo Portola Road near Palo Alto Comment
  CAS-BOT-BC451674  Lilaea scilloides Alice Eastwood 1922-4-24 11196 San Mateo Between Princeton & Morman Comment
  SEINET11764872  Lilaea scilloides Unknown 1932-5-30 9189 San Mateo Lakes Los Francos Woods Comment
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Nov 1 2021
  CAS-BOT-BC130793  Lilium pardalinum W. R. Dudley 1895-9-15 s.n. San Mateo Near Lumber Camp on El Corte de Madera Creek Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  POM137443  Limnanthes douglasii subsp. douglasii C. F. Baker 1903-4-8 1916 San Mateo San Andreas Lake Comment
  CDA4898  Limnanthes douglasii subsp. ornduffii T. W. Heinrich 2004-4-21 s.n. San Mateo Adjacent to Highway 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property, Moss Beach. 0 Comment
  UCD149008  Limonium perezii M. Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh. Comment
  JROH4058  Limosella acaulis John Hunter Thomas 1982-8-13 21136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and in water Comment
  CAS-BOT-BC238362  Limosella aquatica W. R. Dudley 1909-10-10 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near boat-landing of Club-House, Crystal Springs Reservoir Comment
  JEPS58174  Linanthus ambiguus W. L. Jepson 1914-3-22 5731 San Mateo vicinity San Francisco Bay; Redwood City Comment
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Oct 24 2021
  SEINET5556991  Linanthus androsaceus H. S. Gentry 1931-1 91 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH3183  Linanthus dichotomus D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JEPS82910  Linanthus liniflorus Roy E. Buck and Randall A. Morgan 1983-6-7 338 San Mateo in triangle of Edgewood and Canada Rds and Hwy. I-280 (s of a small watercourse); San Francisco Watershed Reserve 137 Comment
  UC202827  Linanthus liniflorus A. D. E. Elmer Jun 1903 4704 San Mateo s end Crystal Springs Lake Comment
  JEPS112713  Linanthus parviflorus Dean W. Taylor 1994-5-10 14270 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  CAS-BOT-BC389719  Lithocarpus densiflorus Virginia Welch 1972-9-25 63 San Mateo King Mt. Rd. above Huddart Park Entrance 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
  UC142600  Lithocarpus densiflorus C. F. Baker 1902-10-1 1759 San Mateo Summit of Coast Range Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC436222  Lithophragma heterophyllum George Oberlander 1950-4-23 851 San Mateo Pilarcitos Comment
  CAS-BOT-BC342309  Logfia filaginoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH733  Logfia gallica John H. Thomas 1971-5-30 15961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342462  Logfia gallica D. E. Breedlove 1974-5-13 36225 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  UC21261  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo on rd. to Crystal Springs Comment
  JEPS23880  Lomatium dasycarpum subsp. dasycarpum Le Roy Abrams 1902-5-11 2447 San Mateo Crystal Springs Lake Comment
  JEPS17119  Lomatium macrocarpum W. L. Jepson 1914-3-22 5736 San Mateo Redwood City Comment
  JROH272  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA212215  Lomatium macrocarpum L. S. Rose 1970-4-23 70031 San Mateo Black Mountain, Skyline Blvd, west of San Mateo 122 Comment
  JROH1655  Lonicera hispidula John H. Thomas 1975-6-5 17934 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  POM284223  Lonicera hispidula var. vacillans Lyman Benson 1930-5-3 2098 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  UC1125230  Lonicera hispidula var. vacillans N. K. Carlson 1935-7-5 61 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  UC139353  Lonicera hispidula var. vacillans C. F. Baker 1901-9-2 1533 San Mateo Crystal Springs Lake Comment
  UC306779  Lonicera hispidula var. vacillans A. D. E. Elmer June, 1903 4255 San Mateo Crystal Springs Lake Comment
  UC484309  Lonicera hispidula var. vacillans Carl B. Wolf 1930-11-5 1805 San Mateo 2 mi w La Honda; Santa Cruz Mtns. 304 Comment
  UCR51650  Lonicera involucrata R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC241542  Lonicera involucrata var. ledebourii Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountains. Bitter Cherry Ravine about 60% of the way to the summit Comment
  CAS-BOT-BC243961  Lonicera involucrata var. ledebourii John H. Thomas 1967-5-2 12802 San Mateo About 1/4 mile up Market Street from new school in canyon, San Bruno Mountain Comment
  RSA18355  Lonicera involucrata var. ledebourii C. B. Wolf 1929-5-25 3733 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  UCR248348  Lotus corniculatus Peter Rubtzoff 1987-7-31 9821 San Mateo South San Francisco, Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection 84 Comment
  JROH2042  Lotus corniculatus John Hunter Thomas 1977-6-16 18810 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  POM18625  Lotus formosissimus Edward L. Greene 1902-5-1 689 San Mateo Crystal Springs Lake. Comment
  RSA100998  Lotus formosissimus G. Oberlander 1949-7-24 268 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  UC729630  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo s of Pescadero; Pigeon Pt. 30 Comment
  RSA120409  Lotus formosissimus W. R. Dudley 1900-3-17 s.n. San Mateo Field above Seal Cove. Comment
  RSA120441  Lotus heermannii W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  UC69628  Lotus micranthus J. Burtt Davy 1895-4-20 1045 San Mateo Lake Pilarcitos Comment
  UC80843  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside Comment
  POM276674  Lotus scoparius var. scoparius Lyman Benson 1928-12-15 832 San Mateo La Honda 213 Comment
  RSA120411  Lotus scoparius var. scoparius W. R. Dudley 1893-07 s.n. San Mateo Near Searsville Lake. Comment
  RSA120448  Lotus stipularis W. R. Dudley 1895-6-7 s.n. San Mateo Top of ridge between Butano and Pescadero. Comment
  SEINET12151380  Lotus stipularis Unknown 1932-1 9152 San Mateo rd to Kings Mt Comment
  UC81109  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  UC311390  Lupinus A. D. E. Elmer May 1903 4827 San Mateo Portola Comment
  UC126955  Lupinus affinis J. Burtt Davy 1895-4-20 1087 San Mateo San Mateo Creek Comment
  SEINET12154347  Lupinus albicaulis L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean, at Pigeon Pt. Lighthouse on Rt 1 Comment
  CAS-BOT-BC195812  Lupinus albifrons var. albifrons Fred Hemphill 1973-5-6 761 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195821  Lupinus albifrons var. albifrons L. R. Abrams 1904-4-10 38 San Mateo San Mateo Canon [Canyon], Santa Cruz Mts. 121 Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC196115  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo S. San Francisco - north, base of San Bruno Mt. Comment
  POM11057  Lupinus albifrons var. collinus A. D. E. Elmer 1903-05 4642 San Mateo San Bruno Hills. Comment
  SEINET10484532  Lupinus albifrons var. collinus Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mountain. Exposed slopes below top of mountain Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  CAS-BOT-BC27391  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, Cedro Cottage Field. Comment
  SEINET10488488  Lupinus arboreus Thomas 1967-5-2 Thomas 12787 San Mateo San bruno mountain. Ca 0.25 mile up market street from new school in canyon. Shrubby Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  RSA91250  Lupinus arboreus var. arboreus Alice Eastwood, John T. Howell 1938-6-26 6077 San Mateo Crystal Springs Lake. Comment
  UC1601763  Lupinus arboreus var. eximius P. B. Kennedy May, 1917 San Mateo Spring Valley Water Co. Comment
  JROH5695  Lupinus bicolor John Rawlings 2015-3-31 1415 San Mateo Jasper Ridge Biological Preserve, Stanford University. In old quarry off of Trail 12 77 Comment
  RSA31675  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo Near Lake Merced. Comment
  RSA134067  Lupinus bicolor subsp. tridentatus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  SEINET10484976  Lupinus bicolor var. umbellatus David B. Dunn, Howard Brown 1946-5-15 Dunn 2597 San Mateo In meadow land in the bottom of a ravine about 50 ft. Deep with a small lake at One end. 1 Block n os sloat blvd. At vale ave. Growing with #2596 as one Colony but with flower size easily marking off #2596. Comment
  SEINET10484981  Lupinus bicolor var. umbellatus Roderick 1965-3-21 RODERICK s.n. San Mateo Summit at power line ridge. Usually up to about a dozen plants in a colony. Comment
  JROH5607  Lupinus formosus var. formosus Ann Lambrecht 2013-11-12 47 San Mateo Jasper Ridge Biological Preserve, Stanford University. A zone 4-25 m south of a large valley oak in annual grassland, west of road C and south of trail 18 123 Comment
  RSA51345  Lupinus latifolius Peter H. Raven 1950-4-30 1985 San Mateo Montara Mountains 122 Comment
  UC83087  Lupinus microcarpus var. densiflorus Katharine Brandegee April 1884 San Mateo Brighton Comment
  HSC103498  Lupinus microcarpus var. microcarpus Thomas W. Nelson, Jane Nelson 1981-4-28 6460 San Mateo Along roadside, ~100 yds, E of junction of State Route 280 & 92. Comment
  SBBG66998  Lupinus nanus L. R. Abrams 1914-4-20 5128 San Mateo confluence of Los Troncos and San Francisquito crks Comment
  UC1129636  Lupinus nanus W. W. Akey 1935-5-25 25 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  POM10646  Lupinus nanus subsp. latifolius C. F. Baker 1902-4-12 507 San Mateo San Gregorio Comment
  SEINET10903591  Lupinus nanus subsp. latifolius Charles Piper Smith 1947-4-25 Smith 47188 San Mateo Pebble beach (pescadero), hwy 1. Comment
  SEINET10451625  Lupinus nanus subsp. nanus P. Wheeler 1965-5-8 Wheeler UMO 104190 San Mateo Sierra 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
  UC201977  Lupinus polyphyllus var. polyphyllus A. D. E. Elmer May, 1903 4444 San Mateo San Pedro Comment
  SEINET10969931  Lupinus succulentus Walter Knight, Irja Knight 1964-3-16 Knight s.n. San Mateo San bruno mtns. San bruno pt. Comment
  SEINET12154824  Lupinus succulentus Unknown 1932-1 8978 San Mateo Los Ticiness woods Comment
  SEINET10490986  Lupinus succulentus var. succulentus Smith 1948-4-23 Smith 48142 San Mateo Hwy 1. San Pedro Point, north grade. Comment
  SEINET10837785  Lupinus succulentus var. succulentus Charles Piper Smith 1948-4-20 Smith 48111 San Mateo Hwy 1. San Pedro Point, south slope. Comment
  SD39057  Lupinus tidestromii Edith A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  SEINET10490286  Lupinus vallicola subsp. apricus David B. Dunn, Howard Brown 1946-5-16 Dunn 2600 San Mateo Collected on dry, rocky road out in the e side of the mtns of the san francisco Peninsula; 4.7 mi ne on the canyon rd from the jct with skyline drive (hwy 5). Comment
  JEPS125910  Lupinus variicolor Dean W. Taylor 2002-3-20 17955 San Mateo Franklin Point, coastal bluff, about 1 mile SE along the coast from actual point. Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  JROH4524  Luzula comosa var. comosa John H. Thomas 1967-4-20 12712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441262  Luzula macrantha W. R. Dudley 1908-3-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Coal Mine Ridge near Mud Lakes 335 Comment
  CAS-BOT-BC441270  Luzula macrantha J. H. Thomas 1949-3-29 187 San Mateo King's Mountain Comment
  CAS-BOT-BC441364  Luzula subsessilis Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain: Upper slopes of mountain, below radio station Comment
  JROH4166  Lycopersicon esculentum Toni Corelli 2002-10-11 249 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H, below road inside JRBP that is parallel to Sand Hill Road 121 Comment
  JEPS42812  Lysichiton americanus Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
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Sep 6 2011
  UCD41235  Lysichiton americanus Rebecca L. Moehlmann 1977-4-19 1 San Mateo 0.8 miles east of Cloverdale Road on Canyon Road. 15 miles south of Halfmoon Bay and Highway 1, turn east ( left) on Pescadero Road, go 2 miles than turn South (right) on Cloverdale Road. About 2 1/2 miles till Canyon Road. Comment
  JROH3368  Lysimachia arvensis John Hunter Thomas 1982-7-8 21077 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA0011333  Lythrum hyssopifolia John H. Thomas 1959-7-8 8020 San Mateo Pescadero Beach. Comment
  SJSU10438  Lythrum hyssopifolia S. R. Piazza 1963-6-27 San Mateo by Hwy 1, 2 mi N of Pigeon Point Lighthouse Comment
  CAS-BOT-BC342589  Madia Cherie Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UC204186  Madia elegans A. D. E. Elmer May 1903 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC343897  Madia elegans Peter H. Raven 1957-9-1 11299 San Mateo King Mt. road 2.3 mi. w. of Woodside Rd. Comment
  RSA81525  Madia elegans subsp. densifolia James I. McMurphy 1907-8-8 s.n. San Mateo San Francisquito Creek; San Mateo - Santa Clara county line Comment
  RSA407385  Madia elegans subsp. elegans Lyman Benson 1937-7-25 8470 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC344490  Madia exigua Ned Cahill 1974-4-29 211 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH1065  Madia exigua John Hunter Thomas 1992-5-25 25349 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA107074  Madia exigua K. C. Rose 1956-5-28 56083 San Mateo Emerald Lake hill W of Redwood City. 183 Comment
  CAS-BOT-BC344521  Madia exigua R. E. Frenkel 1964-5-26 508 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC343338  Madia gracilis David D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mtns. 305 Comment
  CAS-BOT-BC343339  Madia gracilis James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JEPS14885  Madia gracilis V. F. Hesse 1956-6-21 1936 San Mateo n Saratoga summit 731 Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1088  Madia gracilis John Hunter Thomas 1987-5-15 24286 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  JROH1093  Madia gracilis John Hunter Thomas 1988-5-25 24488 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH5633  Madia gracilis John Rawlings 2014-5-23 1229 San Mateo Jasper Ridge Biological Preserve, Stanford University. 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  POM298352  Madia gracilis D. D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  UC917256  Madia gracilis W. A. Harvey and J. M. Tucker 1948-6-29 1703 San Mateo beside road to, just w of junction with Highway 5 Portola State Park; Skyline Boulevard Comment
  CAS-BOT-BC345111  Madia sativa Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345122  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo Sea bluffs at Pescadero Beach Comment
  JROH1116  Madia sativa John Hunter Thomas 1988-10-17 24594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CAS-BOT-BC345108  Madia sativa W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Colma Comment
  JROH1110  Madia sativa John Hunter Thomas 1982-7-22 21088 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  OBI15706  Madia sativa Lewis S. Rose 1966-8-6 66078 San Mateo San Bruno Mtn, head of Colma Cyn 213 Comment
  JROH4701  Maianthemum racemosum John Hunter Thomas 1987-4-16 24207 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3925  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC512113  Maianthemum racemosum subsp. amplexicaule Ira L. Wiggins 1928-4-14 2916 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  SEINET12055169  Maianthemum racemosum subsp. amplexicaule Unknown 1914-1 s.n. San Mateo San Francisquito Creek Comment
  CHSC13506  Maianthemum stellatum S. Villard 1974-4-28 7 San Mateo Found on King's Mt. Rd., ca. 1.5 mi w of Mounted Patrol Grounds, Woodside. 182 Comment
  JROH4719  Maianthemum stellatum John Hunter Thomas 1990-7-4 24871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG45016  Maianthemum stellatum L. S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  CAS-BOT-BC514155  Maianthemum stellatum R. Bacegalupi 1922-3-1 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC514164  Maianthemum stellatum Elmer I. Applegate 1895-4-6 709 b San Mateo Hillside above Stanford University Comment
  SD39132  Maianthemum stellatum Edith A. Purer 1933-4-11 3634 San Mateo Between Pescadero and Pegeon Point. Comment
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Oct 11 2021
  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-BC203909  Malacothamnus aboriginum A. A. Heller 1901-7-13 s.n. San Mateo Spring Valley Lake Comment
  UC614867  Malacothamnus fremontii Beryl O. Schreiber 1932-5-29 San Mateo near San Mateo (Spring Valley Water Company road) Comment
  CAS-BOT-BC204085  Malacothamnus hallii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  HSC7023  Marah fabacea P. A. Murphy 1965-4-16 10 San Mateo About 5 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  RSA92812  Marah oregana P. H. Raven 1950-4-16 1786 San Mateo Colma Canyon, San Bruno Mts. 122 Comment
  JROH626  Matricaria discoidea John Hunter Thomas 1989-5-9 24700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC50156  Meconella californica J. Burtt Davy 1895-4-20 1039 San Mateo San Mateo Creek Comment
  JROH2177  Medicago arabica John H. Thomas 1976-10-16 18421 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fireplace ruins downstream Comment
  SD99483  Medicago polymorpha Ira L. Wiggins 1975-4-12 22139 San Mateo Northeast side of Southern Pacific right-of-way, between San Francisquito Creek and Ravenswood Avenue, Menlo Park. Comment
  CAS-BOT-BC269471  Melica californica Javier Penalosa 1963-3-30 2754 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, 750 ft. NW of power lines 304 Comment
  CAS-BOT-BC269477  Melica californica W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Comment
  JROH5298  Melica californica Herbert Dengler 1957-4-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG44985  Melica californica L. R. Abrams 1902-5-4 2407 San Mateo Woodside Comment
  JROH5308  Melica imperfecta John Hunter Thomas 1985-4-22 23551 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC264240  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC264251  Melica torreyana W. R. Dudley 1900-3-18 s.n. San Mateo By road to Jersey Farm, Santa Cruz Mountain Peninsula Comment
  JROH2181  Melilotus albus John Hunter Thomas 1983-6-29 22695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2184  Melilotus indicus John H. Thomas 1970-7-5 15674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  UC583160  Mentha canadensis Lewis S. Rose 1936-9-13 36730 San Mateo Granada 1 Comment
  CAS-BOT-BC435236  Mesembryanthemum crystallinum Lin Grayson 1981-5-13 022 San Mateo Palmetto Ave, 100 ft. south of intersection Avalon Dr. Pacifica 16 Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  JROH3905  Micranthes californica D. D. Davis 1903-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA292406  Micropus californicus Lyman Benson 1935-5-5 6539 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  CAS-BOT-BC348569  Micropus californicus var. californicus Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  UCSB17192  Micropus californicus var. californicus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  UCSC004608  Microseris Randall Morgan 1994-4-13 2182 San Mateo Edgewood Park/Canada Road 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
  CAS-BOT-BC348722  Microseris bigelovii John H. Thomas 1963-5-20 10147 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC349026  Microseris douglasii subsp. douglasii Ned Cahill 1974-5-13 273 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS36153  Microseris douglasii subsp. douglasii J. Burtt Davy 1893-6-17 797 San Mateo Belmont Comment
  RSA184978  Microseris douglasii subsp. douglasii L. S. Rose 1966-5-2 66037 -A San Mateo Emerald Lake, west of Redwood City. 91 Comment
  UC203060  Microseris douglasii subsp. douglasii A. D. E. Elmer May, 1903 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349146  Microseris douglasii subsp. tenella H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  SBBG27936  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  UC92108  Microseris douglasii subsp. tenella T. S. Brandegee, E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC349189  Microseris elegans R. E. Frenkel 1964-5-22 504 San Mateo SFWD, 0.3 mile north of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  CAS-BOT-BC7487  Microseris leucocarpha Charles Fuller Baker 1902-5-4 808 San Mateo Woodside Comment
  JROH4076  Mimulus aurantiacus var. aurantiacus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC26963  Mimulus grandis J. Burtt Davy Jun 21 1893-Jun 23 1893 1138 San Mateo Pilarcitos Lake and Canyon Comment
  RSA217981  Mimulus guttatus Walter Knight, I. Knight 1963-7-14 274 San Mateo Base of Quarry 2. San Bruno Mtn. Comment
  SEINET5561542  Mimulus guttatus H. S. Gentry 1931-1 93 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388833  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  UC1111631  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w San Mateo 182 Comment
  JROH1698  Minuartia douglasii John H. Thomas 1961-4-4 9044 D San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  CAS-BOT-BC214086  Monardella villosa D. E. Breedlove 1974-5-13 36235 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain 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
  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
  JROH2841  Monardella villosa subsp. villosa Raymond R. White 1974-5-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2833  Monardella villosa subsp. villosa John H. Thomas 1961-6-7 9529 San Mateo Jasper Ridge Biological Preserve, Stanford University; just above Searsville Lake Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard Comment
  CAS-BOT-BC444953  Montia fontana W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. North of house just below King's Mt. house. Comment
  RSA18087  Montia fontana subsp. variabilis C. B. Wolf 1929-4-29 3661 San Mateo 1 mile N of summit of La Honda Grade, Santa Cruz Mts. Comment
  CAS-BOT-BC508582  Muilla maritima George Oberlander 1950-4-16 686 San Mateo Below San Andreas Dam Comment
  UCR121564  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4961 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
  JROH1397  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  RSA120743  Myosotis latifolia S. S. Tillett, I. Sternback 1956-6-24 542 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA128901  Myosotis latifolia Roxana S. Ferris 1920-4-26 1960 San Mateo Pescadero Creek at beginning of the canyon. 244 Comment
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. 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
  RSA0038439  Myosotis sylvatica W. M. Arbaugh 1968-4-10 227 San Mateo Butano State Park. Comment
  RSA485312  Myosotis sylvatica Dave wheat 1968-4-7 86 San Mateo 1 mile west of intersection of Calif. 84 and calif. 35, 5 mi. north of la Honda. Comment
  SEINET218191  Myosotis sylvatica Cynthia Taylor 1971-7-11 208 San Mateo Skyline Boulevard near La Honda Road., Santa Cruz Mountains. 445 Comment
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley Comment
  CAS-BOT-BC101774  Myrica californica R. Bacigalupi 1922-3-1 s.n. San Mateo Arroyo de los Frijoles Comment
  JROH2702  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  HSC13478  Myriophyllum sibiricum C. B. Wolf 1927-6-15 2173 San Mateo Along Skyline Blvd., 6-8 mi. S of San Francisco Comment
  CAS-BOT-BC260021  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  CAS-BOT-BC60478  Nasturtium officinale Walter Knight; Irja Knight 1963-8-6 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  CAS-BOT-BC60479  Nasturtium officinale George Oberlander 1949-5-21 146 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  JROH1575  Nasturtium officinale Carol Zabel 1989-8-11 28 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near low-flow crossing at Road C Comment
  UC306768  Navarretia heterodoxa A. D. E. Elmer Jun 1903 4282 San Mateo Crystal Springs Lake Comment
  UC762302  Navarretia heterodoxa R. F. Hoover 1941-5-20 5111 San Mateo Redwood City hills Redwood City Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC1124145  Navarretia squarrosa G. E. Sindel 1935-7-25 317 San Mateo 2.5 mi nnw Pescadero; Santa Cruz Quad. 121 Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  POM65137  Navarretia squarrosa Stewart H. Burnham 1894-9-13 7228 San Mateo Outer Coast Range near La Honda Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  UC1301146  Nemophila menziesii Helen K. Sharsmith 1963-2-16 5132 a San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  UC67150  Nemophila menziesii var. atomaria Harley P. Chandler 1901-3-15 800 San Mateo cliffs w Colma; Region of San Francisco Bay, w of Colma Comment
  JROH2738  Nemophila menziesii var. menziesii John H. Thomas 1976-4-3 18079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5546  Nemophila menziesii var. menziesii John Rawlings 2013-4-13 1195 San Mateo Jasper Ridge Biological Preserve, Stanford University; southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  CAS-BOT-BC219475  Nemophila parviflora John Thomas Howell 1971-4-12 47600 San Mateo Butano State Park, Santa Cruz Mts. Comment
  CAS-BOT-BC219482  Nemophila parviflora J. H. Thomas 1954-4-15 3906 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  CDA986  Nemophila parviflora D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .368 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  JROH5550  Nemophila parviflora var. parviflora John Rawlings 2013-4-23 1141 San Mateo Jasper Ridge Biological Preserve, Stanford University; above creek upstream from bridge on Trail 11 139 Comment
  JROH2743  Nemophila parviflora var. parviflora Herbert Dengler 1967-4-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5862  Nerium oleander Cary Tronson 2012-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near caretakers house along Sand Hill Rd. fence 109 Comment
  CAS-BOT-BC140425  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140431  Oemleria cerasiformis David D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains Comment
  CAS-BOT-BC140437  Oemleria cerasiformis James R. Shevock 1973-1-1 2325 San Mateo Along Skyline Drive, Calif. highway 35. Near Lower Crystal Springs Reservoir Comment
  CAS-BOT-BC140440  Oemleria cerasiformis E. G. Dudley 1904-3-3 43 San Mateo Portola Valley, Santa Cruz Mts. Comment
  JROH3707  Oemleria cerasiformis John H. Thomas 1968-3-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  JROH3715  Oemleria cerasiformis John Hunter Thomas 1985-4-25 23565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC555631  Oemleria cerasiformis Herbert L. Mason 1927-4-23 3693 San Mateo near Pescadero Creek (along La Honda road) Comment
  JROH287  Oenanthe sarmentosa John Hunter Thomas 1979-6-12 19589 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSC004918  Oenothera elata Monica Larenas 1985-6-1 22 San Mateo Hwy 1, 1 mi N of Bean Hollow Comment
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  UC1122259  Oenothera elata subsp. hookeri G. E. Sindel 1935-7-25 307 San Mateo 1 mi w Pescadero; Santa Cruz Quadrangle Comment
  UC652594  Oenothera elata subsp. hookeri L. R. Abrams and Ira Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  UCD106882  Oenothera perennis T. C. Fuller 1970-5-12 19529 San Mateo Emily (Mrs. Hillary) Brown prop., 3045 Ralston Ave., Burlingame. Comment
  RSA0066487  Orobanche californica subsp. californica E. B. Copeland 1903-6-5 3330 San Mateo Montara Point. Comment
  JROH5801  Orobanche fasciculata John Rawlings 2017-6-12 2102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12 on bank just west of first footbridge. 108 Comment
  CAS-BOT-BC500317  Orobanche uniflora subsp. occidentalis Walter Knight; Irja Knight 1965-4-25 1073 San Mateo San Bruno Mountain: Owl's Canyon ner rock ledges Comment
  JROH3086  Orobanche vallicola John Hunter Thomas 1982-9-12 21155 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Woods vicinity of Mapache Gate Comment
  CAS-BOT-BC502962  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Searsville Lake Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA184905  Orthocarpus erianthus var. roseus L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 122 Comment
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Mar 28 2016
  RSA51311  Orthocarpus erianthus var. roseus Peter H. Raven 1950-4-16 1814 San Mateo Between Geneva Ave, San Francisco Co and San Bruno Mts. 183 Comment
  RSA152408  Orthocarpus faucibarbatus var. albidus R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4562 San Mateo Immediately behind Point Ano Nuevo. Comment
  RSA6295  Orthocarpus floribundus D. D. Keck 1932-5-6 1490 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  RSA6294  Orthocarpus lithospermoides D. D. Keck 1932-5-6 1493 San Mateo East side of Crystal Springs Lake. 61 Comment
  JROH294  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  JROH295  Osmorhiza berteroi John Hunter Thomas 1985-5-2 23580 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
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Feb 15 2013
  POM133304  Osmorhiza purpurea A. D. E. Elmer 1900-05 1982 San Mateo La Honda Comment
  UCSB9892  Oxalis articulata subsp. rubra Walker, Clifford 1954-4-20 San Mateo 50 yds from ocean, 1 mi. S. of Half Moon Bay Comment
  JROH5644  Oxalis corniculata John Rawlings 2014-6-2 1256 San Mateo Jasper Ridge Biological Preserve, Stanford University. Caretaker's Residence 106 Comment
  OBI7876  Oxalis corniculata G. L. Parsons 1976-5-31 125 San Mateo San Mateo Comment
  UC571122  Oxalis oregana Lucile Roush March 1928 San Mateo Butano creek Santa Cruz Mtns Comment
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Sep 6 2011
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  POM353455  Oxalis oregana J. Doty 1969-3-26 602 San Mateo State Highway 34, 6 miles north of its junction with State Highway 38. Comment
  RSA130344  Oxalis oregana W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula: Redwoods beyond Kings, Santa Cruz Range Comment
  UCSB22995  Oxalis oregana Simpson, C. 1967-3-21 San Mateo Butano Canyon, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  CAS-BOT-BC318249  Packera breweri W. R. Dudley 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mt. Comment
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5347  Paspalum distichum John Hunter Thomas 1979-9-9 19732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of dam. Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4117  Pedicularis densiflora John Hunter Thomas 1981-5-25 20631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130979  Pedicularis densiflora Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt Road. Santa Cruz Peninsula. Comment
  JROH4105  Pedicularis densiflora John H. Thomas 1960-4-2 8562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS82090 Image available Pedicularis dudleyi Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7712 San Mateo 1/3 mi n of its confulence with Pescadero Creek (e side of Peters Creek); Peters Creek 134 Comment
  LA209494  Pedicularis dudleyi E. B. Copeland; 1982-4-9 707 San Mateo big basin of Pescadero creek Comment
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Jun 12 2020
  SBBG33318  Pedicularis dudleyi A. D. E. Elmer -Jun-1903 4289 San Mateo Pescadero Crk (Iverson's); ISOTYPE Comment
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Oct 5 2011
  CAS-BOT-BC207032  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Light Comment
  RSA681602  Penstemon heterophyllus Annuschka Deb 1989-6-13 244 San Mateo Yerba Buena Nursery, next to prop house. Comment
  CAS-BOT-BC327980  Pentachaeta alsinoides John H. Thomas 1961-4-29 9184 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  UC88019  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  CAS-BOT-BC330498  Pentachaeta bellidiflora J. H. Thomas 1974-4-11 17133 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside. 152 Comment
  UC1495039  Pentachaeta bellidiflora Susan Sommers and Toni Corelli 1983-4-2 San Mateo w of middle of bend in Hwy 280 s Edgewood Road overcrossing; Woodside Quad., San Francisco Water District property 121 Comment
  POM259787  Perideridia gairdneri subsp. gairdneri I. L. Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH308  Perideridia kelloggii John H. Thomas 1970-7-5 15661 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3269  Persicaria lapathifolia Roxana S. Ferris 1924-10-6 4094 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3274  Persicaria lapathifolia John Hunter Thomas 1981-10-25 20766 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  CAS-BOT-BC389692  Persicaria maculosa Mary K. Wicksten 1972-6-9 78 San Mateo San Francisquito Creek Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain Comment
  CDA8458  Petasites frigidus var. palmatus T. C. Fuller 1960-4-2 4084 San Mateo Alpine Road, 0.8 mile east of Pescadero Road, 2.8 miles southeast of La Honda. 0 Comment
  UC1206459  Petasites frigidus var. palmatus Roxana S. Ferris 1918-3-30 750 San Mateo 1 mi above Evans Creek; Peters Creek Comment
  SD27918  Petasites palmatus Carl B. Wolf 1928-3-14 1536 San Mateo La Honda Grade, Santa Cruz Mountains. 149 Comment
  JROH4173  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC131689  Phacelia californica C. F. Baker 1902-5-1 690 San Mateo Crystal Springs Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  SEINET3121782 Image available Phacelia californica John Thomas Howell 1929-8-11 4373 San Mateo King Mountain Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 Comment
  UC75121  Phacelia divaricata C. F. Baker 1902-3-30 432 San Mateo stony banks and roadsides Crystal Springs Lake 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
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Sep 15 2021
  UC306565  Phacelia nemoralis subsp. nemoralis A. D. E. Elmer June 1903 4419 San Mateo Crystal Springs Lake Comment
  POM87704  Phacelia nemoralis subsp. nemoralis L. R. Abrams 1901-5-5 1575 San Mateo Bear Gulch, Santa Cruz Mountains. Comment
  JROH2764  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259012  Phalaris californica Ned Cahill 1974-5-18 296 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  RSA100972  Phalaris californica G. Oberlander 1949-4-2 27 San Mateo North Cahill; San Francisco Watershed Reserve Comment
  JROH2768  Pholistoma auritum var. auritum John Hunter Thomas 1981-5-5 20540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4288  Phoradendron serotinum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2056144  Phyllospadix scouleri Melvin Parris, Steve Davenport 1980-11-20 13 San Mateo Ano Nuevo Island Comment
  JROH3733  Physocarpus capitatus John Hunter Thomas 1986-5-1 23988 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing along San Francisquito Creek Comment
  RSA112459  Physocarpus capitatus L. Henderson 1928-4-26 s.n. San Mateo Strawberry bend near Corte Madera cr. Comment
  CDA34334  Pickeringia montana Anonymous 1973-5-8 San Mateo Hwy 84, three miles W of Woodside. 0 Comment
  LA205150  Pickeringia montana subsp. montana U. S. Grant; 1926-9-6 sn San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC206941  Pickeringia montana var. montana Josephine D. Randall 1907-6-29 218 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  RSA472045  Picris echioides E. A. Purer 1933-8-13 5417 San Mateo Belmont Comment
  JEPS121041  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  CAS-BOT-BC137318  Piperia elegans Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH2205  Pisum sativum John H. Thomas 1967-4-28 12724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC191864  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 San Mateo Belmont Comment
  CAS-BOT-BC228132  Plagiobothrys chorisianus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains. About half way down Devil's Arroyo 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
  SD67294  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1967-4-13 4342 San Mateo Pebble Beach Comment
  CAS-BOT-BC228161  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1908-6-19 s.n. San Mateo The Santa Cruz Mountain Peninsula. W of Jersey Farm Dairy Comment
  JROH1411  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1971-4-3 15748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1414  Plagiobothrys chorisianus var. hickmanii D. E. Breedlove 1971-5-5 19327 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
  JROH1418  Plagiobothrys chorisianus var. hickmanii John Hunter Thomas 1982-5-18 20940 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
  SDSU5437  Plagiobothrys chorisianus var. hickmanii D. F. Howe 1967-4-13 4342 San Mateo Pebble Beach. Comment
  SEINET7076093  Plagiobothrys chorisianus var. hickmanii A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  JROH1427  Plagiobothrys nothofulvus John H. Thomas 1975-4-5 17714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC57023  Plantago coronopus Steven Triano 1988-5-24 194 San Mateo Located ca. 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SEINET8665562  Plantago coronopus K. Thorne, J. Chandler 1986-7-25 4924 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand Dunes and beach area adjacent to the Pacific Ocean. Comment
  JROH3109  Plantago erecta John H. Thomas 1957-4-16 6656 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3118  Plantago erecta John Hunter Thomas 1981-4-27 20508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA144779  Plantago erecta John H. Thomas 1958-3-19 7049 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SEINET6205137  Plantago hookeriana var. californica L. S. Rose 1965-1 65056 San Mateo San Bruno Mtn, N end Comment
  UC1125643  Plantago lanceolata N. K. Carlson 1935-6-29 100 San Mateo 1.5 mi se Pescadero Pt.; Santa Cruz Quad. 91 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
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  UC136736  Plantago maritima var. californica Dr. E. B. Copeland 1903-6-5 3331 San Mateo Montara Point Comment
  JEPS7150  Plantago maritima var. californica G. Thomas Robbins 1953-8-29 3617 San Mateo just s Olympic Golf Club (and the San Francisco City and County line) Comment
  CAS-BOT-BC92020  Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  UC1057447  Platystemon californicus G. Thomas Robbins 1937-4-11 95 San Mateo along road to Woodside near Spring Valley Lakes; near Springs Valley Lakes Comment
  CAS-BOT-BC92011  Platystemon californicus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Comment
  SEINET14400463  Plectritis congesta Unknown 1938-5-4 718 San Mateo San Mateo County 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
  JROH5767  Pleuropogon californicus var. californicus John Rawlings 2006-5-1 0848 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  CAS-BOT-BC255562  Poa annua John H. Thomas 1971-5-2 15868 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH5399  Poa annua John H. Thomas 1975-4-3 17702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1537366  Poa douglasii Gordon H. True Jr. 1937-3-31 618 San Mateo Salada Beach 60 Comment
  CAS-BOT-BC246712  Poa howellii W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Ravine north of Seal Cove Comment
  CAS-BOT-BC243110  Poa secunda subsp. secunda David D. Keck 1933-5-11 2311 San Mateo Crystal Springs Lake, about E side Comment
  CAS-BOT-BC243126  Poa secunda subsp. secunda H. A. Dutton 1900-3-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH5710  Poa secunda subsp. secunda John Rawlings 2015-3-15 1352 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 124 Comment
  CAS-BOT-BC244244  Poa unilateralis A. D. E. Elmer 1900-4-1 2393 San Mateo Spanishtown Comment
  POM204748  Poa unilateralis Copeland 1903-5-24 3259 San Mateo Montara Point. Comment
  UCD92154  Poa unilateralis R. L. Pendleton 1907-4-20 616 a San Mateo Lake Merced. 91 Comment
  SJSU15966  Poa unilateralis subsp. unilateralis Toni Corelli, John Rawlings 2016-5-27 1844 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH2854  Pogogyne serpylloides John H. Thomas 1961-4-29 9191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC232897  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  UC882706  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Pilarcito Canyon Santa Cruz Mountain Peninsula, Pilarcito Canyon Comment
  POM165063  Polygonum amphibium var. stipulaceum A. D. E. Elmer 1903-07 4650 San Mateo San Pedro. Comment
  OBI37074  Polygonum aviculare subsp. depressum M. J. Erwin 1983-11-11 20 San Mateo Daggett residence, 100 yds W of Old Canada Rd, within proeprty limits of Filoli Center, Canada Rd Comment
  POM280424  Polygonum coccineum Lyman Benson 1932-7-11 3930 San Mateo Stanford University, Lake border, Santa Cruz Creek, San Francisquito. 152 Comment
  POM181651  Polygonum paronychia H. F. Copeland 1928-2-26 987 San Mateo Montara Comment
  RSA10274  Polygonum paronychia H. A. Barker 1927-5-14 669 San Mateo North of Half Moon Bay. Comment
  UC42913  Polypodium J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Canyon Comment
  SEINET6166104  Polypodium californicum R. L. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park Comment
  CAS-BOT-BC72063  Polypodium calirhiza Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain 609 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  UC42920  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC72108  Polypodium scouleri Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine Comment
  CAS-BOT-BC72109  Polypodium scouleri Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mt., Cable Ravine Comment
  JROH5429  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  UC1100395  Polypogon interruptus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1608 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
Read comments
Mar 12 2009
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5441  Polypogon monspeliensis John H. Thomas 1963-6-23 10160 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  JROH5451  Polypogon monspeliensis John Hunter Thomas 1981-7-12 20685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock. Comment
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  UCD18537  Polypogon monspeliensis Roman Gankin 1950-7-2 5 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  RSA596241  Polypogon viridis Peter Rubtzoff, Walter Knight, I. Knight 1987-6-26 9793 San Mateo San Bruno Mountains; 'Saddle' area on north side of Guadalupe junction; near road in the area of the upper- most part of East Fork Colma Creek in the northwest corner of Fog Forest. Comment
  CAS-BOT-BC76648  Polystichum munitum Le Roy Abrams 1902-1-12 2256 San Mateo King's Mountain Comment
  UC1063668  Polystichum munitum T. Tyrrell 1928-9-26 11 San Mateo Pomonio Creek; Santa Cruz Quadrangle, Plot 13 91 Comment
  RSA189827  Polystichum munitum Delzie Demaree 1932-2-14 8922 San Mateo Kings Mountain. P.O. San Carlos. Comment
  UC1174501  Populus trichocarpa W. R. Dudley 1902-9-21 San Mateo on Whipple Road s Crystal Springs Lake (and w of Serpentine); Santa Cruz Peninsula, s of Crystal Springs Lake Comment
  JROH3361  Portulaca oleracea John Hunter Thomas 1985-8-7 23708 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC267164  Potamogeton foliosus L. R. A. 1902-9-21 2999 San Mateo Belmont Lake Comment
  POM226863  Potamogeton foliosus I. L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles east of Half Moon Bay. Comment
  JROH5512  Potamogeton foliosus subsp. foliosus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC279591  Potamogeton nodosus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-8-29 San Mateo Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  POM193947  Potamogeton pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Near boat landing, club house Capital Springs Reservoir Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH4668  Prosartes hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  CAS-BOT-BC516344  Prosartes hookeri Le Roy Abrams 1902-5-20 2467 San Mateo King's Mountain Comment
  CAS-BOT-BC517396  Prosartes smithii Ira L. Wiggins 1925-4-1 1677 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  SFV3190  Prunella vulgaris subsp. vulgaris K. A. Wilson 1961-6-24 1238 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  JROH3751  Prunus John Hunter Thomas 1981-4-5 20290 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC159842  Prunus cerasifera Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Guadalupe Parkway. San Bruno Mountains Comment
  CAS-BOT-BC154496  Prunus ilicifolia Margaret A. Barry 1937-6-24 186 San Mateo North slope on Los Trancos Creek on Coal Mine Ridge Comment
  UC202781  Prunus ilicifolia A. D. E. Elmer July, 1903 4773 San Mateo Pilarcitos Stone Dam Comment
  JROH3744  Prunus ilicifolia subsp. ilicifolia John H. Thomas 1969-5-28 15084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3748  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1981-7-24 20729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC156357  Prunus virginiana var. demissa D. E. Breedlove 1974-5-13 36207 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  RSA112470  Prunus virginiana var. demissa James I. McMurphy 1906-4-28 16 San Mateo Corte de Madera Creek. Santa Cruz Mtns. Comment
Read comments
Dec 13 2015
  SEINET11917626  Prunus virginiana var. demissa G. C. McMurphy 1906-4-28 16 San Mateo Santa Cruz Penninsula, Carte de Madera Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  CAS-BOT-BC356857  Pseudognaphalium californicum Josephine D. Randall 1907-7-23 47 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH759  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA191946  Pseudognaphalium californicum R. F. Thorne, Percy C. Everett 1963-6-9 32231 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH774  Pseudognaphalium luteoalbum John H. Thomas 1964-11-15 10527 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344867  Pseudognaphalium luteoalbum Peter Rubtzoff; Roman Gankin 1975-5-21 7978 San Mateo Pond northwest of and across old Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway west of Radio Road Junction), San Bruno Mountains. Comment
  CAS-BOT-BC357131  Pseudognaphalium luteoalbum Lewis S. Rose 1936-2-12 36005 San Mateo Burlingame 91 Comment
  UCD135090  Pseudognaphalium luteoalbum J. D. Skoss 1948-7-25 44 San Mateo Montara. Comment
  SDSU3737  Pseudognaphalium microcephalum D. F. Howe 1964-8-13 3958 San Mateo Near ocean on #1; near San Francisco Co. line. Comment
  CAS-BOT-BC357504  Pseudognaphalium ramosissimum Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. The Great Meadow adjacent to upper Colma Canyon Comment
  CAS-BOT-BC357575  Pseudognaphalium stramineum E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC361568  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, Colma Canyon 121 Comment
  CAS-BOT-BC85902  Pseudotsuga menziesii George Oberlander 1950-7-15 1100 San Mateo San Francisco Watershed Reserve, Cahill Ridge Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  POM25381  Pseudotsuga menziesii A. D. E. Elmer 1903-04 4562 San Mateo Kings Mountain. Comment
  JEPS48299  Pseudotsuga menziesii var. menziesii James G. Daly 1935-1-1 220 San Mateo watershed of San Gregorio Creek; Middle Alpine Canyon Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY63952  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 04 1903 4562 San Mateo King's Mountain Comment
  UC311070  Pseudotsuga menziesii var. menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo Kings Mountain 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
  CAS-BOT-BC362016  Psilocarphus tenellus W. R. Dudley 1899-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Field near San Francisquito Creek, Stanford University Comment
  JROH3754  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  JEPS21656  Pyrrocoma racemosa var. racemosa S. D. Halsey 1908-9-15 San Mateo Slough near Cooleys Landing, near Palo Alto. Comment
  UC762364  Quercus X morehus R. F. Hoover 1941-2-12 4764 San Mateo nw of Saratoga Summit Comment
  CAS-BOT-BC389718  Quercus agrifolia Virginia Welch 1972-9-25 63 San Mateo Huddart Park Comment
  SJSU10132  Quercus agrifolia A. W. Jacobs 1936-12-18 San Mateo Jasper Ridge Comment
  JROH2462  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI14313  Quercus agrifolia var. agrifolia Lewis S. Rose 1964-3-23 64012 San Mateo Emerald Lake, W of Redwood City 122 Comment
  CAS-BOT-BC85952  Quercus douglasii Ned Cahill 1974-5-30 327 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwwod City. Comment
  JROH5804  Quercus douglasii John Rawlings, Bill Gomez 2016-7-28 1911 B San Mateo Jasper Ridge Biological Preserve, Stanford University; north side Rd F in blue oak woodland west of serpentine prairie 182 Comment
  SEINET12034334  Quercus douglasii Unknown 1929-1 7302 San Mateo Kings Mtn Comment
  CAS-BOT-BC94282  Quercus durata James McMurphy 1908-8-20 s.n. San Mateo this side of Crystal Springs Reservoir Comment
  UCD46005  Quercus durata Herb Dengler 1992-3-5 s.n. San Mateo Jasper Ridge Biological Preserve (of Stanford University) in southeast part of preserve, San Meteo County, California. Comment
  SEINET12034352  Quercus durata Unknown 1930-1 7294 San Mateo ridges near Searsville Lake Common Chaparral Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105403  Quercus kelloggii J. H. Thomas 1955-3-21 4694 San Mateo New La Honda Road above Searsville and Skyline Blvd. 1.8 miles from Searsville. E slope of the Santa Cruz Mountains 274 Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2500  Quercus kelloggii John H. Thomas 1959-4-5 7664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM223170  Quercus kelloggii S. S. Berry 1909-3-13 s.n. San Mateo Road below Woodside. 91 Comment
  RSA152240  Quercus kelloggii I. L. Wiggins 1925-04 1664 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  JROH2522  Quercus lobata John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  SEINET12034640  Quercus lobata Unknown 1929-1 7290 San Mateo Kings Mtn Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 Comment
  NY201784  Quercus wislizeni J. B. Walker 1994-8-15 909 San Mateo Skyline Rd, mile marker 13.84, N of Sky Londa 100 Comment
  UC762353  Quercus wislizeni Robert F. Hoover 1941-2-12 4757 San Mateo above La Honda; La Honda Creek Comment
  CAS-BOT-BC362543  Rafinesquia californica Fred Hemphill 1973-5-6 782 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362545  Rafinesquia californica Fred Hemphill 1973-5-14 817 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC9380  Ranunculus aquatilis var. capillaceus J. Burtt Davy Jun 21 1893-Jun 23 1893 1130 San Mateo Pilarcitos Lake and Canyon Comment
  UC511360  Ranunculus californicus Lyman Benson 1930-3-20 1953 San Mateo South San Francisco San Francisco Bay Watershed 91 Comment
  RSA40296  Ranunculus californicus L. S. Rose 1947-4-14 47094 San Mateo Skyline Blvd, E of Sharps Park. 152 Comment
  CAS-BOT-BC378531  Ranunculus californicus var. californicus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, grassy slope east of and below Nike station Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC378728  Ranunculus californicus var. cuneatus John H. Thomas 1955-3-5 4679 San Mateo coastal bluffs north of mouth of San Gregorio Creek 0000000000000000000000000 30 Comment
  RSA132486  Ranunculus californicus var. cuneatus John H. Thomas 1950-3-19 1307 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
Read comments
Nov 16 2021
  RSA268183  Ranunculus californicus var. cuneatus Ralph Hoffman 1919-4-19 s.n. San Mateo Steep slope above Cyler's Comment
  JROH3489  Ranunculus hebecarpus John Hunter Thomas 1986-4-22 23970 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  CAS-BOT-BC83416  Ranunculus lobbii W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs. Comment
  CAS-BOT-BC83429  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  JROH3496  Ranunculus muricatus John Hunter Thomas 1983-4-5 21327 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  SD234165  Ranunculus repens Claude Bonang 1958-5-3 29 San Mateo Found in lawn in front of Jordan Hall, Stanford University. Comment
  UCD97310  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  JROH5825  Rhamnus alaternus John Rawlings 2016-2-1 1662 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Trail 10 180 Comment
  JROH3555  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA20326  Rhamnus crocea Carl B. Wolf 1929-5-17 3717 San Mateo 1 mile W of Skyline Drive on Alpine Road. Comment
  JROH2657  Ribes divaricatum var. pubiflorum John Hunter Thomas 1992-4-7 25132 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. 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
  POM141973  Ribes malvaceum A. D. E. Elmer 1903-03 4750 San Mateo Portola Comment
  JROH2662  Ribes malvaceum var. malvaceum J. H. Thomas 1959-1-17 7513 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  CAS-BOT-BC212827  Ribes menziesii A. D. E. Elmer 1903-6-1 4787 San Mateo Lake San Andreas Comment
  CAS-BOT-BC212833  Ribes menziesii W. R. Dudley 1893-3-23 s.n. San Mateo Canada Cr. near Searsville Comment
  CAS-BOT-BC212835  Ribes menziesii J. H. Thomas 1962-3-24 9839 San Mateo Isenberg Ranch near Langley Hill. 548 Comment
  UC11656  Ribes menziesii var. senile Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC463132  Ribes menziesii var. senile W. R. Dudley 1894-3-23 San Mateo above Searsville Dam (below McDonough ranch); Santa Cruz Peninsula, Canada Creek Comment
  JEPS48600  Ribes sanguineum Elsa Kraeger 1926-2-21 San Mateo La Honda Comment
  SEINET13942794 Image available Ribes sanguineum Lewis S. Rose 1947-1 47027 San Mateo Kings Mountain, alt ca 2000 ft 610 Comment
  CAS-BOT-BC144602  Ribes sanguineum var. glutinosum James McMurphy 1902-4-6 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC144630  Ribes sanguineum var. glutinosum Ira L. Wiggins 1929-3-23 3371 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC144641  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-3-1 4470 San Mateo Portola Comment
  CAS-BOT-BC144647  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-3-1 4470 San Mateo Portola Comment
  CAS-BOT-BC144650  Ribes sanguineum var. glutinosum Ray H. Yanis 1951-4-21 53 San Mateo Searsville Lake edge 15 Comment
  JROH2680  Ribes sanguineum var. glutinosum John Hunter Thomas 1981-4-5 20274 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  UC1127602  Ribes sanguineum var. glutinosum G. E. Sindel 1935-8-13 328 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  JEPS15050  Rigiopappus leptocladus LeRoy Abrams 1902-5-4 2401 San Mateo Woodside Comment
  CAS-BOT-BC341023  Robinia pseudoacacia L. R. Abrams 1922-5-3 s.n. San Mateo Sutliff Garden, Stanford University Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  RSA119750  Romanzoffia californica W. R. Dudley 1894-3-26 s.n. San Mateo Between San Mateo and Crystal Springs Reservoir; Santa Cruz Mt Peninsula. Comment
  UC24535  Romanzoffia californica J. Burtt Davy 1895-4-20 1065 San Mateo Pilarcitos Creek; ; Pilarcitos Creek, San Mateo Co. 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-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147625  Rosa californica Ned Cahill 1974-6-21 333 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC146704  Rosa gymnocarpa Elizabeth McClintock 1965-3-28 s.n. San Mateo Romanzoffia Ravine Comment
  JROH3763  Rosa gymnocarpa var. gymnocarpa John Hunter Thomas 1989-5-11 24738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC146800  Rosa multiflora Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1988-7-28 s.n. San Mateo unspecified Comment
  JROH3770  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM139641  Rubus parviflorus var. velutinus A. D. E. Elmer 1903-06 4294 San Mateo Alpine School House. Comment
  CAS-BOT-BC157068  Rubus ursinus J. H. Thomas 1949-4-17 296 San Mateo Along bank of San Francisquito Creek near University Ave. and Newell Rd., Palo Alto Comment
  CAS-BOT-BC157081  Rubus ursinus L. R. Abrams 1914-10-14 5135 San Mateo Tunitas Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157097  Rubus ursinus John Thomas Howell 1938-6-4 13888 San Mateo Burlingame Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  POM261520  Rubus ursinus Alice Eastwood, John T. Howell 1938-6-26 6055 San Mateo Near Pescadero. Comment
  RSA101000  Rubus ursinus G. Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  CHSC1352  Rumex acetosella D. Stover 1929-5-10 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  CAS-BOT-BC422094  Rumex acetosella George Oberlander 1949-4-9 59 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  UCD101037  Rumex acetosella E. M. Johnston 1916-6-1 11 San Mateo Millbrae. Comment
  CAS-BOT-BC421820  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon 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-BC433358  Rumex crispus Ned Cahill 1974-6-21 349 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. 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-BC433541  Rumex fueginus Roxana S. Ferris 1917-10-19 729 San Mateo Margin of Crystal Springs Lake Comment
  UC1215067  Rumex occidentalis V. F. Hesse 1962-7-19 3164 San Mateo between ocean and Pescadero 9 Comment
  CAS-BOT-BC433826  Rumex pulcher W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae. Comment
  JROH2217  Rupertia physodes John H. Thomas 1977-4-19 18534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112462  Rupertia physodes Ynez Henderson 1920-05 s.n. San Mateo Near Searsville Lake. Comment
  SD27758  Rupertia physodes Carl B. Wolf 1927-5-31 414 San Mateo North end of Searsville Lake. 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
  UCR121549  Ruta chalepensis George K. Helmkamp, E. A. Helmkamp 1999-6-28 5003 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  JROH1712  Sagina apetala John Pelton 1962-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near the horsemen's drinking facility Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  CAS-BOT-BC103342  Salix bonplandiana W. R. Dudley 1894-4-21 s.n. San Mateo By bridge above San Mateo Comment
  UCD110944  Salix exigua Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake. 121 Comment
  JROH3853  Salix exigua var. hindsiana Toni Corelli 2003-2-6 254 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area below Searsville Lab 103 Comment
  UC492364  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  UCD111574  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC107134  Salix lasiolepis David D. Keck 1932-1-24 1356 San Mateo Portola 150 Comment
  JROH3861  Salix lasiolepis L. R. Abrams 1904-3-7 67 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 121 Comment
  RSA184897  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 122 Comment
  UC1303068  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo near junction of San Francisquito and Los Trancos creeks (about 2 mi from Stanford University) Comment
  UC1618082  Salix lasiolepis Donald G. Nelson 1939-6-14 621 San Mateo 3 mi. s of San Francisco Co, line (Skyline Blvd. due e. of Mussel Rock on coast, large permanent Sag Pond) Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC124487  Salix lasiolepis var. lasiolepis George Oberlander 1950-3-18 949 San Mateo San Andreas Lake 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-BC128208  Salix lucida W. R. Dudley 1894-3-26 s.n. San Mateo Near San Gregorio - Santa Cruz Peninsula Comment
  SBBG1241  Salix lucida subsp. lasiandra J. W. Congdon -Aug-1897 San Mateo Pescadero Comment
  CAS-BOT-BC126482  Salix sitchensis W. R. Dudley 1899-5-14 s.n. San Mateo So.W. of Baden Station Comment
  CAS-BOT-BC126492  Salix sitchensis Lewis S. Rose 1958-3-19 58010 male, 58011 female San Mateo Princeton 6 Comment
  CAS-BOT-BC126503  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126505  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo From Peters Creek above Iverson's to old mill Comment
  CAS-BOT-BC126510  Salix sitchensis E. A. McGregor 1908-3-28 s.n. San Mateo [King's] Kings Mt. 365 Comment
  CAS-BOT-BC166960  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA788843  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA669744  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo above the zone of Salicornia, w. end of Dumbarton Bridge, Menlo park Comment
  SEINET7081588  Salvia columbariae A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. Coordinate Datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  RSA681666  Salvia leucophylla Annuschka Deb 1989-4-14 102 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  OBI13519  Salvia spathacea Lewis S. Rose 1965-5-3 65059 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  CAS-BOT-BC235037  Sambucus Roxana S. Ferris 1920-3-8 1765 San Mateo Frenchmans Creek near Ocean Comment
  SEINET12286992  Sambucus caerulea Unknown 1933-1 90 San Mateo Comment
  UC1125343  Sambucus mexicana G. E. Sindel 1935-8-13 326 San Mateo San Gregorio Creek Santa Cruz Quadrangle Comment
  POM46725  Sambucus microbotrys A. D. E. Elmer 1903-05 4663 San Mateo Butano Creek Comment
  CAS-BOT-BC246016  Sambucus nigra subsp. caerulea Paul Arnaud 1941-4-19 s.n. San Mateo Whipple Road, Redwood City Comment
  CAS-BOT-BC246020  Sambucus nigra subsp. caerulea Walter Knight; Irja Knight 1965-4-24 1029 San Mateo Point San Bruno at the bay shore on bluff, San Bruno Mountain Comment
  JEPS127879  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo Crystal Springs Reservoir Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC257332  Sambucus racemosa var. racemosa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  CHSC37342  Sanicula arctopoides J. F. Esperance; P. S. Worthing 1982-3-6 San Mateo Top of San Bruno Mt., 1/2 mi s of parking lot on the ridge top. 304 Comment
  POM133576  Sanicula arctopoides A. D. E. Elmer 1900-04 2365 San Mateo Kings Mountain. Comment
  RSA187473  Sanicula arctopoides John H. Thomas 1964-4-30 10347 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UC579535  Sanicula arctopoides H. S. Yates 1935-2-3 5102 San Mateo 0.5 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC223320  Sanicula bipinnatifida Ned Cahill 1974-4-30 215 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH325  Sanicula bipinnatifida John Hunter Thomas 1977-4-28 18561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39078  Sanicula crassicaulis M. K. Beyers 2013-3-3 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  JROH332  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH341  Sanicula crassicaulis John H. Thomas 1977-4-28 18562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10693797 Image available Sanicula laciniata Adolph D. E. Elmer Elmer 4498 San Mateo Comment
  NY406244  Sanicula serpentina A. D. E. Elmer 04 1903 4498 San Mateo Portola Comment
  RSA18449  Satureja douglasii Carl B. Wolf 1927-6-29 558 San Mateo South of Pebble Beach near Pescadero. Comment
  UCR121589  Satureja douglasii George K. Helmkamp, E. A. Helmkamp 1999-6-28 4974 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH349  Scandix pecten-veneris John H. Thomas 1964-4-19 10314 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  CAS-BOT-BC283132  Schedonorus arundinaceus J. H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  RSA790260  Schedonorus arundinaceus Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction northwest of Fog Forest. Comment
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  HSC7526  Schoenoplectus americanus R. E. Jones 1966-4-4 22 San Mateo Ano Nuevo Beach Comment
  RSA366089  Schoenoplectus maritimus L. S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  RSA32340  Schoenoplectus pungens Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  UC1100787  Scirpus cernuus Herbert L. Mason 1949-7-7 14027 San Mateo mouth of Gazos Creek near ocean (southern San Mateo County); mouth of Gazos Creek Comment
  SEINET3914303  Scirpus cernuus var. californicus Lewis S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 mi. S of San Francisco Co. line.; 0 Comment
  UC840923  Scirpus maritimus Alice Eastwood 1915-6-13 4714 San Mateo Granada Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC519015  Scoliopus bigelovii A. D. E. Elmer 1903-3-1 4559 San Mateo King's Mountain Comment
  JEPS62100  Scoliopus bigelovii Elsa Kraeger 1926-2-21 San Mateo n. La Honda Comment
  RSA3924  Scoliopus bigelovii Le Roy Abrams 1904-3-7 s.n. San Mateo Bear Gulch. Santa Cruz Mountain Peninsula. Comment
  SEINET12051466  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on former enroute to Woodside, near Skyline Trail head 580 Comment
  JROH5458  Scribneria bolanderi John H. Thomas 1963-5-15 10093 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39825  Scrophularia californica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4128  Scrophularia californica John Hunter Thomas 1977-6-16 18747 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC376418  Scrophulariaceae Greg de Nevers 2001-9-26 12630 San Mateo Palo Alto. Comment
  UC75032  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs lake Comment
  JROH5752  Scutellaria tuberosa L. Nordby 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Oak woodland just west of the serpentine grasslands on the top of Jasper Ridge Comment
  UC311530  Sedum radiatum A. D. E. Elmer June 1903 4550 San Mateo Toward San Mateo from Crystal Springs Lake Comment
  CAS-BOT-BC59051  Sedum spathulifolium Phillip C. Wheeler 1965-7-8 s.n. San Mateo Canyon adjacent to quarry, San Bruno Mountain Comment
  CAS-BOT-BC327388  Senecio aphanactis Fred Hemphill 1973-4-22 798 San Mateo North of Malabar Road adn Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC363398  Senecio aronicoides Fred Hemphill 1973-4-22 827 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  UC36172  Senecio aronicoides J. Burtt Davy 1895-4-20 1069 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC363388  Senecio aronicoides D. E. Breedlove 1963-5-24 4978 San Mateo In San Andreas Valley below San Andreas Lake Comment
  UC580090  Senecio glomeratus Ira L. Wiggins 1934-8-11 6970 A San Mateo salt flats beside tannery Redwood City Comment
  CAS-BOT-BC364633  Senecio vulgaris Fred Hemphill 1973-4-8 625 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC364635  Senecio vulgaris Fred Hemphill 1973-3-17 617 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH133  Sequoia sempervirens W. R. Dudley 1901-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY64526  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo West side of King's Mountain Comment
  UC118916  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo w side of King's Mountain Coast Range, King's Mountain Comment
  CAS-BOT-BC85778  Sequoia sempervirens W. R. Dudley 1902-12-1 s.n. San Mateo On trail from Iverson's Bull Spring Comment
  SEINET10612340  Sequoia sempervirens Charles F. Baker 1902-1-15 Baker 319 San Mateo West side King's Mountain. The redwood of the Coast Range. Plants of the Pacific Coast. Spermaphytes and Ferns. Distributed by C.F. Baker. Comment
  CDA6645  Sherardia arvensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH3831  Sherardia arvensis John H. Thomas 1971-4-10 15762 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3834  Sherardia arvensis John Hunter Thomas 1984-5-3 23341 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland below Rattlesnake Rock Comment
  UCD23457  Sherardia arvensis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  SBBG30044  Sidalcea diploscypha L. S. Rose 1935-6-9 San Mateo Emerald Lake, W of Redwood City Comment
  CHSC109021  Sidalcea malviflora R. F. Thorne; Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area; on top of San bruno Mountain on Kambhatka Point near the TV tower. Comment
  SEINET7097929  Sidalcea malviflora 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
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  UC1124987  Sidalcea malviflora subsp. malviflora H. S. Yates 1935-2-3 5011 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quadrangle Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  JROH2971  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-5 20271 San Mateo Jasper Ridge Biological Preserve, Stanford University; near lake Comment
  CHSC22898  Sidalcea malviflora subsp. rostrata Robert A. Schlising 1963-2-23 2434 San Mateo California Coast Ranges. 21 miles north of Davenport, along highway 1. Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  UCR121568  Silene gallica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4994 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-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH5886  Silene gallica Ruth Porter 1998-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164093  Silene gallica Peter Rubtzoff 1978-5-5 9164 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
  JEPS29396  Silene scouleri subsp. grandis L. R. Heckard 1961-7-16 1265 San Mateo ne transmitting station KQED (summit of San Bruno Mt.); summit San Bruno Mt., ne of transmitting station KQED 335 Comment
  CAS-BOT-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  CAS-BOT-BC364858  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC364859  Silybum marianum Ned Cahill 1974-7-14 356 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC74990  Sinapis arvensis Fred Hemphill 1973-5-6 767 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC75349  Sisymbrium officinale John H. Thomas 1969-4-24 14918 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  RSA133662  Sisyrinchium bellum John H. Thomas 1950-3-19 1303 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  UCR51646  Sisyrinchium bellum R. Ascanio 1989-4-17 s.n. San Mateo c. 2 mi north of Ano Nuevo State Reserve, E on Gazo Creek Road off Hwy 1. 85 Comment
  UC142705  Smilacina stellata C. F. Baker 1903-4-8 1915 San Mateo San Andreas Lake Comment
  JROH4182  Solanum americanum John Hunter Thomas 1991-11-21 25102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA181219  Solanum americanum John H. Thomas 1965-11-26 11453 San Mateo At intersection of Tunitas Creek Road and Lobos Creek cutoff. 122 Comment
  UC1537407  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo n of Sharpe Park 15 Comment
  UCR247942  Solanum elaeagnifolium John Beall 2010-6-9 PDR- 1621662 San Mateo Brisbane; abandoned train tracks 10 m west of Tunnel Ave., south of Beatty Rd. One half mile south of Bayshore Caltrain station, near San Mateo/San Francisco county line 6 Comment
  SJSU15426  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-25 707 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 30 Comment
  CAS-BOT-BC154183  Solanum umbelliferum R. C. Rollins 1942-4-30 3001 San Mateo S.E. slope of the San Bruno hills, about 1 mile west of Brisbane Comment
  CAS-BOT-BC154185  Solanum umbelliferum F. Hemphill 1973-4-15 688 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC157631  Solanum umbelliferum B. 1902-1-15 234 San Mateo West side King's Mt. Comment
  CAS-BOT-BC35922  Solanum umbelliferum Fred Hemphill 1973-4-15 673 San Mateo San Carlos. Chaparral area N of Malabar Rd. and Melendy Dr. 207 Comment
  NY820569  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  CAS-BOT-BC365533  Solidago elongata R. E. Frenkel 1963-12-7 324 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  CAS-BOT-BC365743  Solidago spathulata L. R. Abrams 1909-8-2 4251 San Mateo Santa Cruz Peninsula. Pebble Beach, Pescadero Comment
  CAS-BOT-BC365745  Solidago spathulata Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC365927  Soliva sessilis John H. Thomas 1964-4-30 10370 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1241  Soliva sessilis John H. Thomas 1977-2-20 18467 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1244  Soliva sessilis John Hunter Thomas 1978-5-12 19202 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365933  Soliva sessilis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. Slope at Flower Garden adjacent to April Brook Comment
  CAS-BOT-BC365935  Soliva sessilis R. E. Frenkel 1964-4-2 413 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road 347 Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC374494  Sonchus asper Fred Hemphill 1973-5-14 821 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1258  Sonchus asper subsp. asper John Hunter Thomas 1981-5-8 20555 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374700  Sonchus oleraceus John H. Thomas 1958-3-19 7054 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC374696  Sonchus oleraceus Ira L. Wiggins 1979-8-26 22247 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  JROH1263  Sonchus oleraceus John Hunter Thomas 1981-5-8 20554 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
  JEPS32245  Sparganium erectum subsp. stoloniferum W. L. Jepson 1910-8-18 4160 San Mateo Butano Creek Comment
  RSA177000  Sparganium erectum subsp. stoloniferum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH5523  Sparganium eurycarpum var. eurycarpum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake near bridge. Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  CAS-BOT-BC390007  Spergula arvensis Javier Penalosa 1963-2-23 2643 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  JROH1746  Spergula arvensis John Hunter Thomas 1981-4-7 20297 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1769  Spergularia John Hunter Thomas 1988-5-25 24487 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH1750  Spergularia bocconi John H. Thomas 1967-5-12 12891 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390207  Spergularia bocconi Alice Eastwood 1937-7-25 18888 San Mateo Pebble Beach, Pescadero Comment
  RSA224264  Spergularia bocconi P. H. Raven 1954-5-16 6954 San Mateo Oceanic bluffs North of mouth of Lobos Creek. Comment
  CAS-BOT-BC344921  Spergularia macrotheca Peter Rubtzoff; Jacob Sigg 1990-11-12 10245 San Mateo Sharp Park, south of Laguna Salada. Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390466  Spergularia macrotheca var. macrotheca W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. By grade, south slope Montara Mts. and near the ocean Comment
  CAS-BOT-BC390471  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1940-6-20 738 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC390918  Spergularia marina W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Vicinity of Mussel Rock Comment
  CAS-BOT-BC390919  Spergularia marina John Thomas Howell 1924-9-28 662 San Mateo At the Leslie Salt Refinery Comment
  CAS-BOT-BC166942  Spergularia rubra Peter Rubtzoff 1978-7-8 9234 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA0098734  Spergularia villosa Lyman Benson 1930-6-14 2154 San Mateo San Gregorio. 30 Comment
  RSA446594  Stachys ajugoides E. A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  UC306581  Stachys ajugoides var. ajugoides A. D. E. Elmer June, 1903 4260 San Mateo Crystal Springs Lake Comment
  JEPS100827  Stachys bullata Dean W. Taylor 2000-6-12 17465 San Mateo Montara Mountain, Scarper Peak, western slope of the peak near the summit 502 Comment
  UC1124917  Stachys bullata N. K. Carlson 1935-7-5 32 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  SEINET12330318  Stachys bullata Unknown 1984-1 RR 40151 San Mateo Pacifica, foothills of Montara Mountain, San Pedro Valley Park 61 Comment
  UC191758  Stachys bullata E. L. Greene 1887-6-11 San Mateo Comment
  UC1206470  Stachys pycnantha Le Roy Abrams 1902-9-21 2986 San Mateo Crystal Springs. Comment
  NY415795  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  CAS-BOT-BC164654  Stachys rigida subsp. quercetorum Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA217963  Stachys rigida subsp. quercetorum Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain, slope below parking lot. Comment
  JROH2895  Stachys rigida var. quercetorum John Hunter Thomas 1983-4-21 21642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH1787  Stellaria media John Hunter Thomas 1983-4-5 21323 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  RSA478185  Stellaria media Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. 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
  CAS-BOT-BC398986  Stellaria nitens Elizabeth McClintock 1965-4-25 s.n. San Mateo Power Line Ridge Comment
  CAS-BOT-BC375912  Stephanomeria virgata Margaret A. Barry 1937-7-17 200 San Mateo Coal Mine Ridge Comment
  JROH1276  Stephanomeria virgata Toni Corelli 2006-8-8 316 b San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 14 106 Comment
  JROH5386  Stipa miliacea var. miliacea John Hunter Thomas 1985-5-21 23662 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  JROH5332  Stipa pulchra Duncan M. Porter 1960-5-5 685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  SEINET5576368  Streptanthus cordatus H. S. Gentry 1931-1 8 San Mateo Collected outskirts of San Bruno on west side. Comment
  CAS-BOT-BC423013  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  CAS-BOT-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-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
  RSA770503  Symphoricarpos albus var. laevigatus Lyman Benson 1930-5-3 2091 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  SD4989  Symphoricarpos albus var. laevigatus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  UC75077  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo w side Kings Mt. Comment
  RSA18299  Symphoricarpos mollis C. B. Wolf 1927-5-31 417 San Mateo North end of Searsville Lake. Comment
  UC1555382  Symphyotrichum chilense J. A. DeBenedictis 1988-7-13 1542 San Mateo San Bruno Mt. Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99090  Symphyotrichum chilense W. R. Dudley 1905-9-24 s.n. San Mateo Black Mountain - Santa Cruz Peninsula Comment
  UCSB18577  Taraxacum officinale Hutchinson, Sandra 1964-3-22 San Mateo Backyard, 908 Patricia Ave., San Mateo Comment
  SEINET4142897  Taraxia ovata James Tanno 1972-4-29 160 San Mateo Pillar Point near Princeton.; 0 6 Comment
  UC1537659  Taraxia ovata Gordon H. True Jr. 1937-3-31 612 San Mateo Salada Beach Road 60 Comment
  JROH3004  Taraxia ovata John Hunter Thomas 1978-4-25 19148 San Mateo Jasper Ridge Biological Preserve, Stanford University; old parking area Comment
  UCSB11176  Taraxia ovata Connelly, Dianne 1962-4-21 San Mateo above main office of Westhorough homes development; 10 miles north of San Francisco on Highway 5 121 Comment
  CAS-BOT-BC447481  Tellima grandiflora John H. Thomas 1974-5-9 17334 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  RSA159427  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  SD146155  Tellima grandiflora G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4971 San Mateo Pescadero Creek Watershed: Pescadero Rd just N of Loma Mar. 106 Comment
  UCR56173  Tellima grandiflora Ray Langham 1966-4-3 135 San Mateo [NW] of La Honda, King's Grove [apparently vicin. of Tunitas Creek Rd., Mitchell Creek drainage] 229 Comment
  CAS-BOT-BC447469  Tellima grandiflora Walter Knight; Irja Knight 1965-4-11 1064 San Mateo Colma Canyon in wet, shaded area. Comment
  CAS-BOT-BC447474  Tellima grandiflora Philip C. Wheeler 1965-5-12 s.n. San Mateo South canyon below western power lines Comment
  CAS-BOT-BC438268  Tetragonia tetragonoides Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo San Bruno Mountain. Point San Bruno. Comment
  CAS-BOT-BC438269  Tetragonia tetragonoides Robert Robertson 1954-4-14 74 San Mateo N.W. of Palo Alto Yacht Club. 3 Comment
  UC634944  Thalictrum fendleri H. L. Mason 1927-4-23 3680 San Mateo summit of road between La Honda and Pescadero Creek Comment
  JROH3509  Thalictrum fendleri var. polycarpum D. E. Breedlove 1971-5-31 19373 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC399846  Thalictrum polycarpum W. R. Dudley 1893-5-27 s.n. San Mateo Santa Cruz Peninsula. Between King's Mountain and El Corte Madera Creek Comment
  SEINET12086638  Thalictrum polycarpum P. R. Hichborn 1920-1 147 San Mateo Portola Valley, Santa Cruz Mountain Peninsula Comment
  UC311389  Thermopsis californica var. californica A. D. E. Elmer May, 1903 4824 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC66658  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66671  Thysanocarpus curvipes John H. Thomas 1974-5-3 17244 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1589  Thysanocarpus curvipes John Hunter Thomas 1980-4-5 19859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1614  Thysanocarpus curvipes John Hunter Thomas 1987-4-16 24205 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  JROH377  Torilis arvensis John Hunter Thomas 1989-6-13 24770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH393  Torilis nodosa John Hunter Thomas 1986-5-1 23991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH396  Torilis nodosa John Hunter Thomas 1986-5-15 24045 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH407  Torilis nodosa John Hunter Thomas 1992-5-14 25224 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC172905  Toxicodendron diversilobum Ned Cahill 1974-5-13 241 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Located within five feet of the stream. Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  POM63947  Trichostema lanceolatum C. F. Baker 1901-10-20 55 San Mateo Summit of Coast Range Comment
  POM160586  Trientalis latifolia Lester Rowntree 1929-6-15 s.n. San Mateo Santa Cruz Mts Comment
  RSA116711  Trientalis latifolia W. R. Dudley 1903-5-1 s.n. San Mateo in Redwoods on road beyond near Petters and Pescadeno Creek Comment
  RSA116718  Trientalis latifolia H. L. Mason 1917-4-21 s.n. San Mateo Permental Creek Comment
  RSA14358  Trientalis latifolia Elmer I. Applegate 1895-4-6 328 a San Mateo Shady arroya in hills above Stanford University Comment
  UC630750  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC725851  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC16489  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-17 798 San Mateo Belmont Comment
  UC137795  Trifolium bifidum var. bifidum C. F. Baker 1902-5-4 743 San Mateo Woodside Comment
  JROH2249  Trifolium bifidum var. decipiens John H. Thomas 1955-5-6 5009 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2259  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-19 17160 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  RSA178682  Trifolium depauperatum var. amplectens John H. Thomas 1964-4-19 10320 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  JROH2260  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2230  Trifolium dichotomum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC39833  Trifolium fucatum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC16515  Trifolium fucatum J. Burtt Davy 1893-6-17 769 San Mateo Belmont Comment
  UC631607  Trifolium fucatum A. A. Heller 1907-5-23 8560 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  JROH2329  Trifolium hirtum John Hunter Thomas 1986-6-3 24077 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  JROH2333  Trifolium hirtum John Hunter Thomas 1991-5-28 25066 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  SJSU15443  Trifolium macraei Toni Corelli 2010-5-13 601 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  CDA28004  Trifolium microdon D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  JROH2341  Trifolium oliganthum John Hunter Thomas 1984-4-24 23309 San Mateo Jasper Ridge Biological Preserve, Stanford University; end of causeway area where earth has been removed Comment
  JROH2351  Trifolium subterraneum John Hunter Thomas 1983-4-3 21312 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside near Searsville Lab Comment
  JROH2358  Trifolium subterraneum John Hunter Thomas 1986-6-3 24076 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  UCSC010592  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area 12 Comment
  UC2048924  Trifolium suffocatum Neal Kramer 2016-4-17 2169 b San Mateo Bean Hollow State Beach trail north of parking area. Comment
  JROH2370  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo Jasper Ridge Biological Preserve, Stanford University; so. west end of Jasper Ridge 152 Comment
  JROH2376  Trifolium variegatum John H. Thomas 1957-4-16 6650 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET4206967  Trifolium variegatum Lewis S. Rose 1953-4-5 53011 San Mateo Redwood City, CA, along Bayshore Highway.; 0 3 Comment
  POM20412  Trifolium variegatum var. melananthum A. D. E. Elmer 1903-05 4685 San Mateo Portola. Comment
  RSA131360  Trifolium variegatum var. melananthum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
Read comments
Feb 5 2019
  JROH2404  Trifolium willdenovii John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM18844  Trifolium willdenovii C. F. Baker 1902-4-4 445 San Mateo Crystal Springs Lake. Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC16818  Trifolium wormskioldii J. Burtt Davy 1893-6-17 807 San Mateo Belmont South Coast Ranges Comment
  CAS-BOT-BC157969  Trifolium wormskioldii Peter Rubtzoff 1978-5-5 9166 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  CAS-BOT-BC451906  Triglochin maritima Walter Knight; Irja Knight 1965-4-20 1084 San Mateo San Bruno Mountain. Near Bethlehem Steel in S.S.F. on Pt. San Bruno. Comment
  UC1206466  Trillium chloropetalum Le Roy Abrams 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  UC844442  Trillium chloropetalum Lewis S. Rose 1937-3-14 37001 San Mateo Emerald Lake 198 Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC521073  Trillium chloropetalum var. giganteum J. H. Thomas 1949-3-29 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC521075  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula: ravine S side Montara Mt. Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC133430  Trillium ovatum George Oberlander 1950-3-11 455 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC133441  Trillium ovatum A. D. E. Elmer 1903-4-1 4752 San Mateo Portola Comment
  CAS-BOT-BC133428  Trillium ovatum W. R. Dudley 1896-3-26 s.n. San Mateo Purisima Creek above King's Comment
  SEINET8502272  Trillium ovatum R. L. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park, La Honda. Comment
  UC204180  Triphysaria eriantha subsp. rosea A. D. E. Elmer May, 1903 4670 San Mateo South San Francisco Comment
  CAS-BOT-BC238553  Triphysaria floribunda Vincent Jones 1921-4-1 s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC238555  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  CAS-BOT-BC238564  Triphysaria floribunda W. R. Dudley 1899-5-14 s.n. San Mateo The Santa Cruz Peninsula. Baden Comment
  CAS-BOT-BC238579  Triphysaria floribunda Walter Knight; Irja Knight 1964-3-16 s.n. San Mateo San Bruno Mountain. San Bruno Point Comment
  JROH4136  Triphysaria pusilla John H. Thomas 1966-4-22 11572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7097919  Triphysaria versicolor 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
  JEPS17983  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point; sw San Mateo County Comment
  CAS-BOT-BC193499  Trisetum cernuum George Oberlander 1950-6-3 1018 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  UC635229  Triteleia hyacinthina Margaret Stason 1924-5-18 San Mateo Jasper Ridge Sandhill Road Comment
Read comments
Sep 19 2011
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  IRVC9072  Triteleia ixioides subsp. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay drainage area; Summer Spring Road; woodside. Santa Cruz Mountains 152 Comment
  UC1133960  Triteleia laxa N. Carlson 1935-6-20 71 San Mateo between Slate and Oil Creek Santa Cruz Quad. 60 Comment
  CAS-BOT-BC526369  Triteleia laxa Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo Colma Canyon near old quarry, San Bruno Mountain Comment
  CAS-BOT-BC526788  Triteleia laxa Ned Cahill 1974-4-29 174 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC526789  Triteleia laxa D. D. Davis 1903-5-1 2 San Mateo near [?]avery place Comment
  IRVC9055  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET12053115  Triteleia laxa Unknown 1933-1 20 San Mateo near Emerald Lake above Redwood City Comment
  JROH5540  Typha angustifolia John Hunter Thomas 1982-11-6 21203 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  JROH5578  Typha latifolia John Rawlings 2012-7-9 1202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  JEPS87362 Image available Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  SBBG103948  Ulex europaeus D. Pendleton 1993-10-28 San Mateo San Bruno Mtn Park, 0.3 mi E of the park gate/parking lot on Guadalupe Cyn Parkway Comment
  JROH4222  Ulmus minor John Hunter Thomas 1987-4-30 24214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC91224  Umbellularia californica John H. Thomas 1971-5-2 15860 San Mateo Near intersection of Canada and Edgewater roads, about 4 miles southwest of center of Redwood City. 304 Comment
  CAS-BOT-BC91227  Umbellularia californica Ned Cahill 1974-4-30 234 San Mateo Near the intersection of Canada and Edgewater roads, about 3 miles westward from Redwood City. Comment
  SEINET5577659  Umbellularia californica H. S. Gentry 1931-1 18 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CAS-BOT-BC404025  Urtica dioica subsp. holosericea Le Roy Abrams 1901-9-1 2218 San Mateo Menlo Park Comment
  CAS-BOT-BC404023  Urtica dioica subsp. holosericea Mrs. E. C. Sutliffe 1933-7-12 s.n. San Mateo Alpine Creek Road, Skyline Blvd. to La Honda Comment
  JROH4235  Urtica dioica subsp. holosericea John H. Thomas 1961-6-14 9547 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge across the two parts of Searsville Lake Comment
  POM87994  Urtica dioica subsp. holosericea L. R. Abrams 1901-09 2218 San Mateo Menlo Park. Comment
  RSA249475  Urtica dioica subsp. holosericea John F. Emmel 1972-6-15 407 San Mateo At edge of eucalyptus grove, 0.1 air mile SW of jct Radio Road and Guadalupe Cyn Parkway, San Bruno Mtns. 221 Comment
  RSA174017  Vaccinium cespitosum R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32214 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC199352  Vaccinium ovatum Rose M. Higley 1907-4-27 141 San Mateo La Honda Comment
  CAS-BOT-BC199361  Vaccinium ovatum John H. Thomas 1961-5-7 9298 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199367  Vaccinium ovatum Josephine D. Randall 1907-7-28 140 San Mateo Iversons near Pescadero Creek Comment
  POM131827  Vaccinium ovatum Edward L. Greene 1902-1-15 242 San Mateo West side King's Mountain. Comment
  RSA10269  Vaccinium ovatum H. A. Barker 1927-5-6 693 San Mateo Summit of Kings Mts. Comment
  UC877270  Vaccinium ovatum G. W. Reyburn 1908-3-28 San Mateo vicinity Woodside; Kings Mountain 701 Comment
  CAS-BOT-BC199464  Vaccinium parvifolium W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side Santa Cruz Range Comment
  JEPS100467  Vaccinium parvifolium Dean W. Taylor 1988-4-29 9586 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  RSA187270  Vaccinium parvifolium W. R. Dudley 1908-5-2 s.n. San Mateo Iverson's, upper Pescadero Creek. Comment
  UC141744  Vaccinium parvifolium Dr. E. B. Copeland 1903-5-9 3249 San Mateo Big Basin of Pescadero Creek Comment
  CAS-BOT-BC76144  Vancouveria planipetala A. D. E. Elmer 1903-5-1 4922 San Mateo Iverson's Place. Pescadero Creek. Comment
  CAS-BOT-BC76147  Vancouveria planipetala W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek near Iverson's. Comment
  JROH4265  Verbena lasiostachys var. lasiostachys John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181222  Verbena lasiostachys var. lasiostachys John H. Thomas 1964-6-19 10428 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  RSA187259  Veronica americana James I. McMurphy 1902-3-22 s.n. San Mateo Portola. Comment
  UC563965  Veronica americana Ira L. Wiggins 1935-8-24 8162 San Mateo entering bay at Moss Beach Moss Beach Comment
  CDA19090  Veronica americana J. Beall 2001-4-24 PDR 064439 San Mateo Belmont Creek at Old Country Rd., Belmont. 0 Comment
  JROH5832  Veronica americana Ann Lambrecht, Teri Barry, Nona Chiariello, and Alice Cummings 2014-5-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta of Searsville Lake Comment
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  JROH2425  Vicia americana subsp. americana Toni Corelli 2010-4-29 365 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 uphill 86 Comment
  POM127023  Vicia americana var. americana R. L. Pendleton 1907-4-20 608 San Mateo Lake Merced 30 Comment
  JROH2432  Vicia disperma Toni Corelli & Ann Lambrecht 2009-5-11 350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21 (Lower West Lake Trail) at inlet mouth 109 Comment
  SJSU2299  Vicia gigantea C. W. Sharsmith 1950-4-16 6628 San Mateo near Pescadero Point, near Pescadero Comment
  UCD108671  Vicia hassei P. B. Kennedy 1917-5-1 s.n. San Mateo Crystal Springs Road. Comment
  SFV4291  Vicia sativa J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  UC1176928  Vicia sativa Peter H. Raven 1950-6-3 2215 San Mateo Millbrae; along Millbrae Ave 60 Comment
  RSA187266  Vicia sativa John H. Thomas 1960-6-25 8793 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  JROH2447  Vicia sativa subsp. sativa John Hunter Thomas 1981-4-30 20516 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM257512  Vicia villosa Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek back of Stanford University. Comment
  CAS-BOT-BC264031  Viola adunca W. R. Dudley 1896-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Between San Gregorio and Pescadero, near sea Comment