Search Results — 2000 specimen records retrieved (1331 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
  RSA0025757  Abronia latifolia Lyman Benson 1930-8-15 2563 San Mateo San Gregorio. Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  JROH1982  Acacia melanoxylon Toni Corelli 2005-8-3 299 a San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek near Dennis Martin site 71 Comment
  OBI48988  Acaena pinnatifida Michener & Bioletti, Bioletti May 1892 s.n. San Mateo Cemeteries Comment
  SD27820  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach, south of Pescadero Comment
  CAS-BOT-BC451127  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo At Flower Garden adjacent to April Brook; San Bruno Mountains Comment
  RSA18356  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo N of Pigeon Pt, San Mateo Comment
  UC1187063  Acanthomintha duttonii David D. Keck 1940-5-15 5034 San Mateo w of Redwood City (Emerald Lake); Emerald Lake Comment
  UC311537  Acanthomintha duttonii A. D. E. Elmer May, 1903 4538 San Mateo Crystal Springs Lake Comment
  SD27833  Acanthomintha obovata Carl B. Wolf 1929-5-24 3723 San Mateo Open grassy hills above upper Emerald Lake back of Redwood City. Comment
  JROH163  Acer macrophyllum John Hunter Thomas 1989-5-11 24733 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road in grassy area above San Francisquito Creek and below dam 87 Comment
  JROH165  Acer macrophyllum John Hunter Thomas 1992-7-24 25381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek near the new bridge 87 Comment
  CAS-BOT-BC333212  Acer macrophyllum W. R. Dudley 1906-6-30 s.n. San Mateo Santa Cruz Mountain Peninsula. LosTrancos Road near Las Trancos Dairy Comment
  JROH168  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  CAS-BOT-BC336918  Acer negundo var. californicum Ira L. Wiggins 1925-4-11 1633 San Mateo Hillside across from Schroder's. One and one half miles about Stanford University. Comment
  JROH172  Acer palmatum Carol Zabel and Ann Lambrecht 2002-4-24 46 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera creek floodplain north of Leonard's bridge about 25 feet 107 Comment
  CAS-BOT-BC21587  Achillea millefolium Fred Hemphill 1973-4-8 601 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC28767  Achillea millefolium H. M. Hall 1923-10-26 847 -C San Mateo Collected live in Montara, planted in Stanford Gardens and later vouchered from there. 0 Comment
  JROH442  Achillea millefolium John H. Thomas 1967-5-31 12934 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  SEINET10758616  Achillea millefolium Thomas B. Croat 1966-6-20 Croat 1997 San Mateo 1 mile N of Montara, sandy banks along Pacific. Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2066  Acmispon americanus var. americanus John Hunter Thomas 1992-7-24 25393 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  UCD35770  Acmispon wrangelianus Beecher Crampton 1962-6-11 6491 San Mateo Pacifica, north city limits, along State Hwy. 1 just southwest of its junction with Skyline Blvd. Comment
  SEINET10962249  Actaea rubra Adolph D. E. Elmer Elmer 4703 San Mateo Comment
  UC202840  Actaea rubra A. D. E. Elmer May, 1903 4703 San Mateo Butano Creek Comment
  CAS-BOT-BC29292  Adenocaulon bicolor H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  HSC23907  Adenocaulon bicolor Mary Katherine Wicksten 1971-6-22 89 San Mateo Huddart Park. Dean Trail below Werder Flat Comment
  CAS-BOT-BC139956  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC139960  Adenostoma fasciculatum Linda Fox 1969-6-20 1001 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UC662651  Adenostoma fasciculatum L. S. Rose 1941-6-12 41270 San Mateo hills w. Redwood City (Emerald Lake); Emerald Lake 120 Comment
  CAS-BOT-BC65514  Adiantum aleuticum D. E. Breedlove 1973-9-26 35556 San Mateo Pescadero Creek County Park 365 Comment
  SEINET10966201  Adiantum aleuticum Mary Susan Taylor 1978-8-30 Taylor 1864 San Mateo Comment
  UC1063727  Adiantum jordanii G. E. Sindel 1935-8-2 322 San Mateo head of <Harington> Creek; Santa Cruz Quadrangle Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  JROH2706  Aesculus californica John H. Thomas 1969-5-28 15086 San Mateo Jasper Ridge Biological Preserve, Stanford University 134 Comment
  UC206220  Agoseris apargioides var. apargioides Katharine Brandegee 1917-6-15 San Mateo Moss Beach Moss Beach Comment
  RSA292572  Agoseris grandiflora Lyman Benson 1935-5-12 6553 San Mateo Menlo Park 30 Comment
  SEINET196521 Image available Agoseris grandiflora W. A. Harvey, J. M. Tucker 1948-6-29 1707 San Mateo Portola State Park ; Road to Portola State Park just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  UC202773  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  UC92296  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Crystal Springs Lake Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  CAS-BOT-BC15231  Agoseris hirsuta W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School House, Black Mountain Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  RSA796393  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, West of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  JROH4781  Agrostis exarata W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4787  Agrostis exarata John Rawlings 2007-5-18 1037 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1, uphill side of trail, east of first redwood grove. 118 Comment
  UCD52319  Agrostis exarata Beecher Crampton 1962-6-11 6498 San Mateo Pacifica, N. city limits, along State Hwy. 1, just s.w. of its junction with Skyline Blvd. Comment
  JROH4794  Agrostis hallii John Rawlings 2011-6-21 1085 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to Horse Trail in opening in chaparral a few hundred feet from Escobar Road 125 Comment
  POM87684  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crystal Springs. Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  CAS-BOT-BC138951  Agrostis pallens W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Colma Canyon, south ridge. Comment
  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
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  CAS-BOT-BC138567  Agrostis variabilis W. R. Dudley 1894-7-7 s.n. San Mateo By spring and watering trough halfway up Bear Gulch Road. Comment
  UC766883  Agrostis viridis R. F. Hoover 1940-9-1 4548 San Mateo La Honda summit La Honda Comment
  CDA38392  Agrostis viridis Wm. Davis 1957-8-16 s.n. San Mateo Nursery; Millbrae. 0 Comment
  JROH4157  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JEPS101120  Aira caryophyllea Dean W. Taylor 1988-3-16 9406 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot , 371 Comment
  JROH4831  Aira caryophyllea John Hunter Thomas 1985-5-22 23681 San Mateo Jasper Ridge Biological Preserve, Stanford University 91 Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138234  Aira caryophyllea var. caryophyllea David D. Keck 1932-5-6 1480 San Mateo Just west of Millbrae Highlands. 50 Comment
  CAS-BOT-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-BC138251  Aira caryophyllea var. caryophyllea H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles. Comment
  CAS-BOT-BC445395  Alisma plantago-aquatica Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mountains Comment
  CAS-BOT-BC447499  Allium amplectens Le Roy Abrams 1902-5-8 2431 San Mateo Standford University Comment
  SEINET12049324  Allium amplectens H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge Comment
  CAS-BOT-BC467296  Allium dichlamydeum Ned Cahill 1974-5-13 245 San Mateo Chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. 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-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  JROH4555  Allium lacunosum var. lacunosum H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.W. of '"road" on serpentine, and E. of Mimulus Gully, opp. oaks on sep., top of J.R. Comment
  CAS-BOT-BC472889  Allium paniculatum David Atkins 1951-11-10 s.n. San Mateo Pescadero Comment
  JROH4560  Allium peninsulare var. franciscanum John Hunter Thomas 1986-5-8 24027 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC474300  Allium unifolium Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo North facing slope south of new Guadalupe Parkway to west of where it meets Radio Road Comment
  CAS-BOT-BC474304  Allium unifolium George Oberlander 1950-4-16 663 San Mateo Cahill Ridge Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  JROH174  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA177003  Amaranthus albus John H. Thomas 1964-11-15 10522 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  CAS-BOT-BC44923  Ambrosia chamissonis Volney Rattan 1879-1-1 s.n. San Mateo Mouth Redwood Creek Comment
  CAS-BOT-BC44929  Ambrosia chamissonis Lewis S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  SEINET11855123  Ambrosia chamissonis L. S. Rose 1935-1 San Mateo Granada 3 Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  POM139628  Amelanchier pallida A. D. E. Elmer 1903-05 4659 San Mateo Slates Creek. Comment
  RSA18297  Amelanchier pallida Carl B. Wolf 1927-5-31 419 San Mateo Searsville Lake Comment
  JROH5617  Amelanchier utahensis Ann Lambrecht 2014-4-29 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14, about midway between dam and road C. 98 Comment
  CAS-BOT-BC214047  Amsinckia Lewis S. Rose 1933-5-17 33174 San Mateo Redwood City Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  UC1220416  Amsinckia lunaris Jerry Powell 1963-5-3 356 San Mateo s and se facing slopes San Bruno Mountain (north tank hill) Comment
  UCD78151  Amsinckia lunaris Robert E. Preston 2008-4-3 2603 San Mateo Near Lower Crystal Springs Reservoir, ca. 200 ft E of Sawyer Camp Trail, 0.5 mi NNE of its jct with Skyline Blvd 109 Comment
  CAS-BOT-BC222456  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo Road west of San Mateo City to Skyline Blvd., 1.7 miles below junction to Skyline opposite gravel pit, (Hillsborough) Comment
  JROH1347  Amsinckia menziesii John Hunter Thomas 1981-4-21 20459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127880  Anagallis arvensis Adam C. Schneider 2013-5-17 134 San Mateo Crystal Springs Reservoir Comment
  RSA116698  Anagallis arvensis W. R. Dudley 1900-3-17 s.n. San Mateo Bank near Ocean, South slope montara mts. Comment
  JROH3374  Anagallis minima John H. Thomas 1974-4-25 17214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45194  Anaphalis margaritacea Saichi Kawahara 1968-7-29 459 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC391910  Anemone grayi Elmer I. Applegate 1895-3-9 3 1/2 San Mateo Woodside Comment
  CAS-BOT-BC391912  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391914  Anemone grayi J. H. Thomas 1949-4-14 274 San Mateo Kings Mountain Comment
  UC463321  Anemone oregana W. R. Dudley 1894-3-26 San Mateo redwoods beyond King's Mt. House; Santa Cruz Peninsula Comment
  UC174202  Angelica hendersonii Katharine Brandegee San Mateo Tobin Comment
Read comments
Apr 5 2008
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  CAS-BOT-BC273190  Anisocarpus madioides John H. Thomas 1961-6-20 9555 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  UCD128894  Anisocarpus madioides W. A. Harvey; J. M. Tucker 1948-6-29 1704 San Mateo beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC102287  Anthemis cotula Peter Rubtzoff; Patricia Fallon 1987-8-26 9839 San Mateo San Bruno Mountains. Saddle area on north side of Guadelupe Canyon. Comment
  CAS-BOT-BC280639  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  JROH197  Anthriscus caucalis John H. Thomas 1973-4-20 16580 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH200  Anthriscus caucalis John H. Thomas 1975-4-30 17843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3605  Aphanes occidentalis John H. Thomas 1977-2-20 18465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC454492  Aphanes occidentalis Ned Cahill 1974-4-29 197 San Mateo Serpentine fields bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  RSA181419  Apocynum cannabinum James I. McMurphy 1908-8-20 s.n. San Mateo Ravine near shore this side of Crystal Springs Comment
  CAS-BOT-BC451562  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC451568  Aponogeton distachyos M. P. Johnson 1967-2-18 10014 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  SD71033  Aponogeton distachyos Peter Rubtzoff 1955-4-2 1767 San Mateo In a small pool near the road, Skyline Boulevard near the junction of Chinese Cemetery Road. (IPB 4/07) Comment
  UC311129  Aquilegia eximia A. D. E. Elmer June, 1903 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405900  Aquilegia formosa Ira L. Wiggins 1925-4-1 1652 San Mateo Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (Sequoia sempervirens) belt. Comment
  POM270570  Aquilegia formosa var. truncata Lyman Benson 1928-4-21 94 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  CAS-BOT-BC17319  Arabis blepharophylla Walter Knight; Irja Knight 1965-4-25 1071 San Mateo San Bruno Mountains. Owl's Canyon. Comment
  CAS-BOT-BC17322  Arabis blepharophylla Paul F. Covel 1937-4-15 578 San Mateo Montara Mountains. Highway summit. Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  SEINET5539301  Arabis filifolia H. S. Gentry 1931-1 San Mateo Comment
Read comments
Mar 12 2016
  RSA112474  Aralia californica Theo C. Zschokke 1903-7-10 s.n. San Mateo Goat Ranch Road, Corte de Madera Cr. Comment
  CDA22357  Arceuthobium campylopodum E. L. Labadie 1959-10-16 San Mateo Nursery, Burlingame. 0 Comment
  JEPS27360  Arctostaphylos Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7620 San Mateo lateral ridge below and se end of ridgetop road just east of KRON TV tower and station (on Guadalupe Valley side of mt.); San Bruno Mountain 304 Comment
  JROH5920  Arctostaphylos Toni Corelli 2004-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along driveway of private lot immediately east of Goya Gate along the Preserve's boundary fence Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  RSA367225  Arctostaphylos andersonii L. S. Rose 1934-2-10 34026 San Mateo Skyline Blvd. 4 mi. S. Kings Mountain. Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  UCD50280  Arctostaphylos andersonii Roman Gankin 1959-3-22 324 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  CAS-BOT-BC23505  Arctostaphylos crustacea W. R. Dudley 1894-3-23 s.n. San Mateo Road to La Honda 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
  JROH1923  Arctostaphylos crustacea subsp. crustacea L. R. Abrams 1910-8-14 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1928  Arctostaphylos crustacea subsp. crustacea Josephine D. Randall 1906-1-27 138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1932  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 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
  JROH5915  Arctostaphylos crustacea subsp. crustacea John Rawlings 2017-1-25 1956 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of Road F, 49 m south of its intersection with roads D and E Comment
  OBI14494  Arctostaphylos crustacea subsp. crustacea E. K. Balls 1948-3-19 7870 San Mateo 2 mi N of S end of State rte 5 305 Comment
  SEINET11988208  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4418 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 76 Comment
  CAS-BOT-BC24482  Arctostaphylos imbricata R. F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt., n. side near summit. Comment
  CAS-BOT-BC24491  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  RSA502352  Arctostaphylos imbricata D. W. Taylor 1988-4-8 9478 San Mateo San Bruno Mountain, summit of mountain: ca. 100 m east of the summit parking lot at the eastern extent of public road access. 381 Comment
  RSA380888  Arctostaphylos montaraensis Roman Gankin, W. Richard Hildreth 1966-5-17 738 San Mateo Montara Mountain Comment
Read comments
Mar 6 2010
  CAS-BOT-BC39820  Arctostaphylos pacifica Arthur Menzies 1962-2-18 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC44707  Arctostaphylos regismontana Walter Knight; Irja Knight 1964-9-14 846 San Mateo On Peak Mt. 304 Comment
  CAS-BOT-BC44737  Arctostaphylos regismontana E. A. McGregor 1908-3-28 s.n. San Mateo King's Mountain 548 Comment
  CAS-BOT-BC44748  Arctostaphylos regismontana W. R. Dudley 1902-5-17 s.n. San Mateo Near King's Mountain Road 457 Comment
  JEPS101966  Arctostaphylos regismontana Dean W. Taylor 1997-3-14 15912 San Mateo Kings Peak Road; Santa Cruz Mountains, Kings Mtn., on road to archery area under high-voltage, steel-tower eletrical transmission line 533 Comment
  POM285164  Arctostaphylos regismontana Lyman Benson 1929-3-5 975 San Mateo Summit of Kings Mountain 762 Comment
  RSA1939  Arctostaphylos regismontana C. B. Wolf 1930-11-6 1067 San Mateo 2 mi N of Summit of Kings Mountain, Skyline Blvd. 640 Comment
  RSA636744  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24631 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636746  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24630 San Mateo NW side of Montara Mtn. 150 Comment
  UC1120828  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 7 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 457 Comment
  UC1120829  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 6 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 426 Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UC549743  Arctostaphylos regismontana J. E. Adams 1935-4-7 1044 San Mateo Skyline Blvd. Comment
  UC565404  Arctostaphylos regismontana Charles M. Belshaw 1936-1-25 1467 San Mateo Kings Mountain Rd six mi w Woodside; South Coast Range Comment
  UC763116  Arctostaphylos regismontana R. F. Hoover 1939-3-3 3899 San Mateo Kings Mountain Comment
  SEINET11989291  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  RSA380889  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. .4 mile northeast of Peak Mountain of Montara Mountain range. 488 Comment
  UCD51722  Arctostaphylos tomentosa subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile northeast of Peak Mountain of Montara Mountain range, San Mateo County, California. 487 Comment
  JEPS48596  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 571 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM131601  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain. Comment
  RSA155444  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1961-2-16 61002 San Mateo Hills w. of Belmont. 183 Comment
  POM367475  Arctostaphylos tomentosa subsp. tomentosa L. H. Jones 1909-3-5 s.n.. San Mateo Summit and West side of Jasper Ridge, Stanford University. 183 Comment
  SEINET11989278  Arctostaphylos tomentosa var. tomentosiformis Unknown 1966-1 739 San Mateo ca 0.4 mi NE of Peak Mountain of Montara Mountain range 488 Comment
  CAS-BOT-BC46829  Arctostaphylos uva-ursi Peter H. Raven 1951-3-12 2743 San Mateo Summit ridge San Bruno Mts. Comment
  CAS-BOT-BC46834  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1981-3-1 4055 San Mateo fire road edge about 200 yards east of summit parking lot of San Bruno Mountain Comment
  SEINET11987491  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mt Comment
  SEINET11989128  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 4540 San Mateo Kamchatka Point, San Bruno Mountain 351 Comment
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  CAS-BOT-BC47699  Armeria maritima subsp. californica J. H. Thomas 1954-6-11 4286 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  CAS-BOT-BC47703  Armeria maritima subsp. californica Lous F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  RSA18369  Armeria maritima subsp. californica Carl B. Wolf 1927-6-29 539 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1123303  Armeria maritima subsp. californica W. W. Akey 1935-5-28 24 San Mateo 1 1/2 mi n Bolsa POint; Santa Cruz Quadrangle Comment
  CAS-BOT-BC47693  Armeria maritima subsp. californica Elizabeth McClintock; Paul Reedberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  POM87789  Arnica discoidea L. R. Abrams 1902-5-20 2464 San Mateo Kings Mountain 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
  RSA116788  Artemisia biennis Roxana S. Ferris 1924-10-6 4096 San Mateo Searville Lake on Portola Hwy. Comment
  JROH517  Artemisia californica John H. Thomas 1978-9-24 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1036426  Artemisia californica G. B. Rossbach 1955-7-26 616 San Mateo 3 mi s San Francisco City/County line (along Route 1); northern San Mateo County Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH522  Artemisia douglasiana John Hunter Thomas 1982-7-2 21057 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  SEINET10958279  Artemisia douglasiana Lewis S. Rose 1965-9-4 Rose 65101 San Mateo Skyline Blvd. & Half Moon Bay Road, Cahill Ridge, moist slopes. 244 Comment
  POM261373  Aster chilensis H. C. Cauteloro 1940-9-2 s.n. San Mateo North of Pescadero Comment
  POM57738  Aster chilensis B. Greene 1901-10-20 50 San Mateo Summit of Coast Range Comment
  RSA417641  Aster chilensis D. D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  JROH1990  Astragalus gambelianus John H. Thomas 1968-5-3 14448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186755  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC177968  Astragalus nuttallii var. virgatus W. R. Dudley 1909-10-4 s.n. San Mateo Hills above Mussel Rock - Santa Cruz Mountain Peninsula Comment
  SD37525  Astragalus nuttallii var. virgatus Edith A. Purer 1933-8-13 5405 San Mateo Small bottom, Santa Clara Valley, near Baden Station. Comment
  CAS-BOT-BC193095  Astragalus pycnostachyus var. pycnostachyus C. F. Leitholt 1894-7-1 s.n. San Mateo Pescadero Comment
  UC688910  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo near Lake San Andreas Comment
  JROH1437  Athysanus pusillus John Rawlings 2007-4-1 1064 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine slope above and south of Big Inlet drainage, 176 Comment
  CHSC57076  Atriplex leucophylla Steven Triano 1988-5-24 201 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SD40192  Atriplex leucophylla Edith A. Purer 1932-7-18 4013 San Mateo Half Moon Bay. Comment
  JROH1805  Atriplex prostrata Roxana S. Ferris 1924-10-6 4095 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake on Portola Highway Comment
  JROH5936  Atriplex prostrata Ann Lambrecht 2007-9-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek, left bank below Bear Creek confluence Comment
  RSA26768  Atriplex subspicata I. L. Wiggins 1929-8-24 3873 San Mateo Moss Beach. Comment
  CAS-BOT-BC146125  Avena barbata Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon. Comment
  CDA1739  Avena barbata T. C. Fuller 1971-6-1 19879 San Mateo 1.6 km. east of San Gregorio. 0 Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  JROH2  Azolla John Hunter Thomas 1980-11-12 20167 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  RSA176408  Baccharis douglasii John H. Thomas 1964-10-2 10513 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Edge of Searsville Lake near Bridge. Comment
  JEPS59963  Baccharis glutinosa Lewis S. Rose 1969-8-22 69099 San Mateo Skyline Blvd. & La Honda Rd. 609 Comment
  JROH541  Baccharis glutinosa John Hunter Thomas 1982-7-22 21089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203045  Baccharis glutinosa D. Keck; 1931-9-27 1271 San Mateo Dumbarton Bridge Comment
  UC893653  Baccharis glutinosa Roxana Stinchfield 1915-10-14 262 San Mateo Santa Cruz Mountain Peninsula, San Francisquito Creek Comment
  CAS-BOT-BC99506  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo Point San Bruno, San Bruno Mountain Comment
  CAS-BOT-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  CAS-BOT-BC99534  Baccharis pilularis George Oberlander 1951-7-12 1211 San Mateo San Andreas Valley Comment
  CAS-BOT-BC99536  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  SEINET11861776  Baccharis pilularis Unknown 1933-8-4 10464 San Mateo along Bayshore Highway 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
  CAS-BOT-BC16628  Barbarea orthoceras Fred Hemphill 1973-5-6 748 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  RSA195512  Barbarea orthoceras John H. Thomas 1966-4-22 11567 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC16641  Barbarea orthoceras R. E. Frenkel 1964-4-2 417 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge Road and Whiting Ridge Road. 347 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
  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
  RSA681564  Berberis nevinii Annuschka Deb 1989-7-14 287 San Mateo YBN Demonstration Garden. (Yerba Buena Nursery) Comment
  CAS-BOT-BC75879  Berberis pinnata G. Edelbrock 1975-3-21 021 San Mateo On ridge at end of Crocker Street, San Bruno Mountain. 152 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
  CAS-BOT-BC66301  Blechnum spicant H. L. Mason 1921-7-1 s.n. San Mateo Butano Creek Comment
  CAS-BOT-BC31088  Bolboschoenus maritimus Ira L. Wiggins 1980-8-29 22258 San Mateo Bed and lower bank of San Francisquito Creek, ca 200 m upstream from Pope St Bridge Comment
  CDA36480  Brachypodium sylvaticum Ellen Gartside 2011-7-14 s.n. San Mateo Woodside; Old La Honda Rd. 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
  SEINET251703 Image available Brachypodium sylvaticum John Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UCR162537  Brachypodium sylvaticum John Beall 2003-12-4 s.n. San Mateo Santa Cruz Mtns., Woodside, on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit 427 Comment
  CAS-BOT-BC30257  Brassica nigra Alice Eastwood; John Thomas Howell 1939-7-9 7439 San Mateo Skyline Blvd. east of La Honda. Comment
  JROH1457  Brassica nigra D. E. Breedlove 1971-5-31 19364 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC186699  Brassicaceae Fred Hemphill 1973-3-17 713 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  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-BC145325  Briza minor H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of roadside. Comment
  CAS-BOT-BC145336  Briza minor David D. Keck 1932-4-18 1433 San Mateo Burlingame. On the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC145341  Briza minor Walter Knight; Irja Knight 1965-4-24 1027 San Mateo San Bruno Mountain. Point San Bruno. Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4887  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  UCD57477  Briza minor H. A. Borthwick 1980-4-28 106 San Mateo Santa Cruz Mountain Peninsula. South of Cystal Lakes. Comment
  SEINET3884835  Brodiaea coronaria var. macropoda Lewis S. Rose 1970-4-8 70024 San Mateo Black Mountain W. of San Mateo.; 0 122 Comment
  JROH4585  Brodiaea elegans subsp. elegans John Hunter Thomas 1986-6-7 24088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC484342  Brodiaea elegans subsp. elegans Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC484344  Brodiaea elegans subsp. elegans Cherie Wetzel 1969-6-20 867 San Mateo Canada College, Redrood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  CAS-BOT-BC484353  Brodiaea elegans subsp. elegans Eric Walttier 1919-6-9 s.n. San Mateo Woodside Comment
  JEPS109574  Brodiaea terrestris subsp. terrestris Dean W. Taylor 1994-5-10 14268 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  JROH4591  Brodiaea terrestris subsp. terrestris John Hunter Thomas 1981-4-23 20481 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU9943  Brodiaea terrestris subsp. terrestris J. R. Verbarg 1955-5-14 44 San Mateo Crystal Springs Hills 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-BC483185  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-5-25 s.n. San Mateo Brisbane Ridge, south of power lines, San Bruno Mountain Comment
  CAS-BOT-BC183618  Bromus carinatus Peter Rubtzoff 1978-4-2 9152 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM286980  Bromus carinatus Lyman Benson 1930-5-1 2059 San Mateo Stanford University. San Lorenzo Mt. Range. 122 Comment
  JROH4895  Bromus carinatus var. carinatus John Hunter Thomas 1977-6-16 18740 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4900  Bromus carinatus var. carinatus John Rawlings 2013-4-16 1136 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fenceline about 100 m east of the gate 149 Comment
  CAS-BOT-BC148986  Bromus carinatus var. carinatus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope of Montana Mountains. Comment
  CAS-BOT-BC148768  Bromus carinatus var. marginatus Catherine A. Toschi 1963-2-23 63 :29 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  CAS-BOT-BC155722  Bromus diandrus Ira L. Wiggins 1975-4-17 22141 San Mateo Northeast side of Southern Pacific Right of way, between San Francisquito Creek and Willow Road, Menlo Park. Comment
  CAS-BOT-BC155724  Bromus diandrus Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH4910  Bromus diandrus W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  CAS-BOT-BC155132  Bromus hordeaceus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of Woodside. Comment
  CAS-BOT-BC155134  Bromus hordeaceus George Oberlander 1950-5-28 1000 San Mateo San Francisco Watershed Reserve. North boundary. Comment
  JROH4924  Bromus hordeaceus John Hunter Thomas 1984-4-24 23303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128662  Bromus hordeaceus P. H. Raven 1950-6-3 2208 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  JROH4939  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  JROH4959  Bromus madritensis subsp. rubens John Rawlings 2013-5-7 1182 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road L near the Searsville School sign. 107 Comment
  CAS-BOT-BC162228  Bromus maritimus Roxana S. Ferris 1920-4-27 189 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo Point. 0 Comment
  SEINET3923660  Bromus mollis K. Harper 1984-4-25 84 -6 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  SEINET10933427  Bromus rigidus Delzie Demaree 1932-5-12 Demaree 9128 San Mateo Stanford Farm. Dry situations. Comment
  JROH4966  Bromus tectorum John Hunter Thomas 1983-7-7 22827 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  CAS-BOT-BC36870  Cakile edentula var. edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  CHSC81474  Cakile maritima Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Rockaway Beach, Pacifica. 0 Comment
  CAS-BOT-BC36956  Cakile maritima var. maritima Ira L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC185147  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro. Comment
  JEPS34469  Calamagrostis nutkaensis L. R. Heckard and R. Bacigalupi 1963-7-2 1358 San Mateo trail to Montara Peak (nw slope) above old county road 304 Comment
  RSA17938  Calamagrostis nutkaensis C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC438532  Calandrinia ciliata Le Roy Abrams 1902-5-4 2406 San Mateo Woodside Comment
  CAS-BOT-BC438534  Calandrinia ciliata Catherine A. Toschi 1963-2-23 63 :36 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC389754  Calandrinia ciliata J. Nieri 1953-2-21 s.n. San Mateo Hetch Hetchy Reservoir, Redwood City Comment
  CDA31267  Calendula arvensis J. Eide 2010-2-19 PDR# 1527850 San Mateo East Palo Alto: in residential garden. 0 Comment
  RSA292629  Calochortus albus Lyman Benson 1930-5-12 2120 San Mateo San Mateo County: Lake Searsville. 152 Comment
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC492167  Calochortus albus Paul F. Covel 1936-4-24 271 San Mateo ft Saratoga Grade Comment
  RSA14949  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi W of Stanford University. Comment
  CAS-BOT-BC487809  Calochortus coeruleus K. Hoppaugh 1929-5-11 212 San Mateo La Honda grade Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC491982  Calochortus luteus W. R. Dudley 1894-5-18 343 San Mateo From Woodside to Crystal Spr. Lake. Comment
  CAS-BOT-BC491984  Calochortus luteus Henry J. Thompson 1951-6-10 1501 San Mateo Westridge Hills, just west of Los Trancos Creek, 5 miles west of Palo Alto 121 Comment
  CAS-BOT-BC491991  Calochortus luteus Marion Ownbey; Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa cruz Mts., above Searsville Lake 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
  UC423011  Calochortus umbellatus J. Burtt Davy 1893-6-17 795 San Mateo Belmont Comment
  SEINET3480492  Calycadenia multiglandulosa L. S. Rose 1941-6-12 1897 San Mateo Emerald Lake, Emerald Lake, West of Redwood City 120 Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  RSA296719  Calystegia purpurata Clark L. Miller 1978-6-15 1 -59 San Mateo Collected off old hwy. 1, approx. 4 miles south of Half Moon Bay. Comment
  JROH1840  Calystegia purpurata subsp. purpurata John H. Thomas 1969-6-4 15112 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC465972  Calystegia soldanella Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UC20548  Camissonia strigulosa Ivar Tidestrom May, 1894 San Mateo Comment
  UC306520  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer July 1903 4942 San Mateo San Pedro Comment
  JROH1646  Campanula griffinii John Rawlings 2007-5-9 1012 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5. 124 Comment
  SEINET10463042  Campanula prenanthoides Wicksten 1971-7-7 WICKSTEN 155 San Mateo Huddart Park, road cut along road to family campground Comment
  SEINET10463047  Campanula prenanthoides Leitholt 1894-7-28 LEITHOLT s.n. San Mateo La Honda Road Comment
  JROH1474  Capsella bursa-pastoris John Hunter Thomas 1978-5-9 19196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187412  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC37659  Cardamine californica W. R. Dudley 1895-2-9 s.n. San Mateo Below Pescadero. Arroyo de las Friojoles. Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37670  Cardamine californica Reed Clark Rollins 1941-2-22 2937 San Mateo Santa Cruz Mountains. About 8 miles northwest of Palo Alto. 152 Comment
  CAS-BOT-BC37672  Cardamine californica J. H. Thomas 1949-4-1 211 San Mateo West of Redwood City. Comment
  CAS-BOT-BC37681  Cardamine californica George Oberlander 1950-2-1 453 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC37690  Cardamine californica Oliver W. Norvell 1931-2-28 1356 San Mateo Kings Mountain Grade. Comment
  HSC6686  Cardamine californica P. A. Murphy 1965-4-16 37 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  RSA484627  Cardamine californica var. integrifolia L. S. Rose 1938-2-23 38081 San Mateo Woodside. 183 Comment
  POM176892  Cardamine californica var. integrifolia W. R. Dudley 1894-3-28 s.n. San Mateo By Corte de Madera Creek below McDonough s Ranch. Santa Cruz Peninsula. Comment
  CAS-BOT-BC37986  Cardamine oligosperma John H. Thomas 1963-5-20 10119 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles northwest of Santa Cruz. Comment
  JEPS127781  Cardamine oligosperma Adam C. Schneider with C. Matt Guilliams 2014-3-9 42 San Mateo Comment
  JROH1487  Cardamine oligosperma Le Roy Abrams 1901-3-1 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1494  Cardamine oligosperma John H. Thomas 1979-4-8 19447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1495  Cardamine oligosperma John Hunter Thomas 1981-4-5 20275 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH1501  Cardamine oligosperma John Hunter Thomas 1987-4-7 24173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian acorn grinding rock Comment
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006296  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  SEINET7273593 Image available Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  CAS-BOT-BC19328  Carex barbarae J. H. Thomas 1958-8-1 7371 San Mateo Sand dunes about 0.5 mile north of mouth of Pescadero Creek. 0 Comment
  JROH4319  Carex barbarae John Hunter Thomas 1989-6-6 24759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  JROH4326  Carex bolanderi John Rawlings 2012-5-15 1121 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  CAS-BOT-BC34077  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5265 San Mateo Pigeon Point. Comment
  CAS-BOT-BC18937  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  JROH4330  Carex densa John H. Thomas 1967-6-1 12984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM193987  Carex densa W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula; Near Summit Springs, Kings Mt. Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  RSA783464  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  RSA91589  Carex densa L. S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  UCD165066  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10649935  Carex dudleyi Lewis S. Rose 1939-4-14 Rose 39064 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC19944  Carex exsiccata W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs. Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC146604  Carex gynodynama Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5255 San Mateo Pescadero Comment
  CAS-BOT-BC21815  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6059 San Mateo Near Pescadero. Comment
  CAS-BOT-BC21818  Carex harfordii Alice Eastwood; John Thomas Howell 1938-6-26 6070 San Mateo Pigeon Point. Comment
  JROH4350  Carex harfordii John Rawlings 2010-5-19 1049 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  RSA789960  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo San Bruno Mtns: Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC119345  Carex obnupta W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  CAS-BOT-BC117643  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117646  Carex serratodens LeRoy Abrams 1902-5-4 2425 San Mateo Woodside. Comment
  CAS-BOT-BC117652  Carex serratodens Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside. Comment
  UC1159367  Carex subbracteata J. H. Thomas 1959-4-4 7657 San Mateo about 0.7 mi s Gazos Creek (about 6.5 mi s from Pescadero) 45 Comment
  RSA783466  Carex subbracteata Peter Rubtzoff, Roman Gankin 1975-5-21 7975 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  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-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  CAS-BOT-BC115515  Carex tumulicola W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs. Comment
  JROH4365  Carex tumulicola John Hunter Thomas 1978-4-8 19059 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4372  Carex tumulicola John Rawlings, Carol Zabel, Ann Lambrecht 2005-6-15 0909 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Several yards from the intersection of Trail 2 with Trail 3. 86 Comment
  CAS-BOT-BC227876  Carex tumulicola Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. In ravine at southern tip of ridge separating Juncus and Tank Ravines, above Hillside Boulevard 114 Comment
  POM193758  Carex tumulicola W. R. Dudley 1894-05 s.n. San Mateo Between Woodside and Crystal Springs Lake. Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  UC295990  Carpobrotus chilensis H. M. Hall 1926-4-29 12235 San Mateo s of San Francisco (Salida Beach); San Francisco Bay Region, Salida Beach Comment
Read comments
Apr 7 2009
  SEINET11942215  Carpobrotus chilensis M. T. Doutt 1931-1 179 San Mateo Ano Nuevo Pt Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  CDA19907  Carthamus lanatus L. Kuwahara 2002-6-17 PDR 065011 San Mateo San Francisco Bay Area; at 12445 Old La Honda Rd. 0 Comment
  SEINET12027448  Castanopsis chrysophylla Unknown 1932-1 9240 San Mateo Kings Mtn Comment
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM15426  Castilleja affinis C. F. Baker 1903-4-12 505 San Mateo San Gregorio. Comment
  POM15472  Castilleja affinis C. F. Baker 1903-4-6 1877 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  RSA187415  Castilleja affinis John H. Thomas 1950-3-19 1305 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
  UCR71531  Castilleja affinis Rimo Bacigalupi, J. R. Sweeney 1954-8-3 4741 San Mateo Upper part of Tunitas Canyon Road, W slopes of Kings Mtn, about 3/4 mi west of Skyline Boulevard 579 Comment
  CAS-BOT-BC249190  Castilleja affinis W. R. Dudley 1896-4-19 s.n. San Mateo Santa Cruz Peninsula. Above Alpine School House, Alpine Comment
  CAS-BOT-BC249194  Castilleja affinis E. McClintock; Philip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Below Nike station Comment
  POM298045  Castilleja affinis A. A. Heller 1907-4-20 8442 San Mateo Near Lake Merced. Comment
  RSA516625  Castilleja affinis R. C. Bacigalupi, J. R. Sweeney, G. Bacigalupi, Cliff Fenneman 1954-8-3 4733 San Mateo Heights above Thornton Beach close to State Highway No. 1. 55 Comment
  SD234175  Castilleja affinis Virginia Pinkus Ryder 1965-6-13 436 San Mateo San Bruno Mtn. above Olivet Cemetary. Growing in sun on dry W. slope. 121 Comment
  SD38139  Castilleja affinis Delzie Demaree 1932-4-9 3615 San Mateo Woods, Gov. Rolf Estate Comment
  SJSU667  Castilleja affinis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge Comment
  JEPS34320  Castilleja affinis subsp. affinis L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1326 San Mateo Thornton Beach State Park 30 Comment
  JEPS60420  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-21 6661 San Mateo about 2 mi s Half Moon Bay road junction with Skyline Boulevard Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103887  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7880 San Mateo Hill just S of Rockaway Beach. Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC886454  Castilleja ambigua subsp. ambigua Alice Eastwood 1915-6-13 4721 San Mateo Granada Comment
  SBBG40478  Castilleja ambigua subsp. ambigua W. J. Dress 1951-5-12 3339 San Mateo 4.5 mi N of Pigeon Point Comment
  JEPS108121  Castilleja attenuata Dean Kelch 1993-3-30 s. n. San Mateo N of junction of I-280 and 92 nr SM Co Fire Dept. Comment
  JEPS127791  Castilleja densiflora subsp. densiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 62 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3976  Castilleja densiflora subsp. densiflora Duncan M. Porter 1961-4-8 749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate on top of ridge Comment
  SD38137  Castilleja franciscana Edith A. Purer 1933-5-25 3653 San Mateo Spring Valley Lakes Comment
  CAS-BOT-BC243840  Castilleja latifolia John Thomas Howell 1933-4-9 10966 San Mateo Hills south of Pescadero 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
  POM21237  Castilleja latifolia Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  UCR240614  Castilleja lithospermoides T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3522 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  OBI9362  Castilleja rubicundula Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH4002  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1980-5-6 19930 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS88830  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mi n San Gregorio Beach Comment
  UC311191  Castilleja subinclusa subsp. franciscana A. D. E. Elmer May 1903 4527 San Mateo San Bruno Hills Comment
  JEPS6922  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4554 San Mateo between La Honda Creek and Pescadero Creek (summit of divide, on the road from La Honda and San Mateo County Memorial Redwood Park) 304 Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS3674  Castilleja wightii C. R. Bell 1951-3-25 922 San Mateo e of Daly City (maritime slopes of Colma Canyon); Colma Canyon Comment
  JEPS47394  Castilleja wightii L. R. Heckard 1964-6-24 1399 San Mateo up from Atlanta St. in Daly City (along new road up Colma Canyon); Colma Canyon, Daly City 121 Comment
  JEPS6880  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4739 San Mateo lower slopes Lobitos Canyon (0.25 mi e of and above the junction of the road up the canyon with the old coast road) 97 Comment
  JEPS6953  Castilleja wightii Peter H. Raven 1950-4-30 1989 San Mateo Montara Mts. 24 Comment
  RSA18450  Castilleja wightii Carl B. Wolf 1927-6-29 557 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA428365B  Castilleja wightii Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC1327236  Castilleja wightii John T. Doyen 1966-3-28 37 San Mateo San Bruno Mountains; near Radio Towers on top Comment
  UC198266  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore R.R. Comment
  CDA41388  Castilleja wightii T. I. Chuang 1991-7-2 7879 San Mateo Hill just south of Rockaway Beach. 0 Comment
  RSA189726  Castilleja wightii Noel Holmgren, James L. Reveal 1966-6-5 2632 San Mateo Skyline Boulevard (California 35), 0.25 mile south of junction with California 1. Comment
  SEINET884614 Image available Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  JROH1522  Caulanthus lasiophyllus John H. Thomas 1961-4-4 9044 F San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area near Westridge end of ridge Comment
  SBBG26911  Ceanothus oliganthus var. sorediatus C. B. Wolf 1941-7-31 4394 San Mateo 1 mi E of summit of La Honda Grade, Santa Cruz Mtns 396 Comment
  UC79845  Ceanothus oliganthus var. sorediatus Katharine Brandegee April 1889 39 San Mateo Mountains back Redwood City; back of Redwood City Comment
  CAS-BOT-BC51239  Ceanothus papillosus E. H. Richardson 1906-4-1 s.n. San Mateo Kings Mt. Comment
  RSA136269  Ceanothus papillosus C. F. Baker 1902-5-10 803 San Mateo Kings Mountain. Comment
  CAS-BOT-BC52275  Ceanothus thyrsiflorus Elizabeth McClintock 1963-6-9 s.n. San Mateo unspecified Comment
  CAS-BOT-BC52278  Ceanothus thyrsiflorus Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Powerline Ridge Comment
  CAS-BOT-BC52283  Ceanothus thyrsiflorus George Oberlander 1950-4-23 859 San Mateo on Sawyer Ridge Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52295  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52298  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House, Kings Mountain Comment
  CAS-BOT-BC52306  Ceanothus thyrsiflorus Mrs. Ernest Meiere 1920-5-2 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC52310  Ceanothus thyrsiflorus Miss O. Boring 1897-8-25 s.n. San Mateo Near Kings Mt. House Comment
  UC1219870  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  JROH592  Centaurea calcitrapa John Hunter Thomas 1977-6-16 18767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA444732  Centaurea calcitrapa Lyman Benson 1934-7-29 6111 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC274583  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  RSA220002  Centaurea calcitrapa R. E. Frenkel 1963-12-7 319 San Mateo San Francisco Water District, Whiting Ridge Road, about 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  RSA289669  Centaurea calcitrapa Lyman Benson 1930-4-15 2037 San Mateo Spring Valley; Crystal Springs Lake 152 Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  RSA133890  Centaurea melitensis John H. Thomas 1958-6-11 7224 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  RSA176865  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about 0.5 mile off shore and about 20 mi. NW of Santa Cruz. Comment
  RSA407369  Centaurea solstitialis Lyman Benson 1932-7-25 3954 San Mateo Menlo Park. 30 Comment
  CDA38621  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  CHSC56085  Centaurium tenuiflorum Jan M. Karaz 1979-5-27 60 San Mateo 3 mi east of Hwy 280 intersection with Woodside Road, 1.2 mi east of Woodside on Mountain Home Road. 7 Comment
  SJSU15233  Centromadia pungens subsp. pungens Toni Corelli 2013-8-16 455 San Mateo Ravenswood Open Space Preserve, east end of Bay Road, East Palo Alto 4 Comment
  CAS-BOT-BC279329  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-27 4017 San Mateo Menlo Park Comment
  JEPS44407  Centromadia pungens subsp. pungens Lewis S. Rose 1965-9-20 65106 San Mateo Trousdale Dr. and California Dr.; Burlingame 9 Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC388388  Cerastium glomeratum A. D. E. Elmer 1903-4-1 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388391  Cerastium glomeratum Fred Hemphill 1973-3-17 618 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  SEINET11914803  Cercocarpus betuloides J. T. McMurphy 1906-1 18 San Mateo Los Trancos Creek, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC135470  Cercocarpus betuloides var. betuloides W. R. Dudley 1902-11-2 s.n. San Mateo Bank os San Francisquito Cr. half mile above Adelanta Vill bridge. Comment
  CAS-BOT-BC135472  Cercocarpus betuloides var. betuloides K. Hofpaugh 1929-5-6 585 San Mateo La Honda Grade Comment
  JROH3615  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3620  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1948  Chamaesyce maculata John Hunter Thomas 1991-6-9 25068 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Main Gate off Sand Hill Road Comment
  CDA4771  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Boulevard, Burlingame. 0 Comment
  RSA299223  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Blvd., Burlingame. Comment
  JROH1820  Chenopodium californicum D. E. Breedlove 1971-5-11 19334 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  POM158031  Chenopodium macrospermum var. farinosum L. R. Abrams 1903-9-26 4018 San Mateo Border of Bay back of Menlo Park. Comment
  SEINET5765025 Image available Chenopodium macrospermum var. halophilum L. R. Abrams, I. L. Wiggins 1930-1 I 78 San Mateo Salada Beach Comment
  UC1076471  Chenopodium multifidum Herbert L. Mason 1924-10-19 1115 San Mateo Colma Comment
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Apr 6 2009
  RSA137301  Chenopodium murale John H. Thomas 1949-10-16 1146 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC497725  Chlorogalum pomeridianum Ned Cahill 1974-4-29 171 San Mateo Serpentine fields bordered by chaparral near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  IRVC9051  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  CAS-BOT-BC499311  Chlorogalum pomeridianum var. divaricatum J. H. Thomas 1958-6-11 s.n. San Mateo About 4.3 miles due east 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
  CAS-BOT-BC191591  Chorizanthe cuspidata var. cuspidata Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. San Bruno Mountain Comment
  UC202786  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer May, 1903 4793 San Mateo San Pedro Comment
  SEINET3828530 Image available Chorizanthe cuspidata var. marginata A. D. E. Elmer 1903-1 4828 San Mateo San Pedro. Comment
  CAS-BOT-BC252659  Chorizanthe membranacea C. Rose Broome; Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento-Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres N.F. 427 Comment
Read comments
Oct 1 2021
  POM222889  Chrysolepis chrysophylla S. S. Berry 1909-3-13 s.n. San Mateo King's Mt. Road. 549 Comment
  JROH2587  Cicendia quadrangularis John H. Thomas 1974-4-4 17086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277895  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC100940  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo Crystal Springs Lake near County Relief Home. Type Locality 121 Comment
  CAS-BOT-BC100942  Cirsium fontinale var. fontinale J. W. Congdon 1901-7-27 s.n. San Mateo Spring Valley Comment
  CDA1227  Cirsium fontinale var. fontinale T. C. Fuller 1960-6-23 4541 San Mateo E shore Upper Crystal Springs Lake; 0.7 miles S/ road across lake. 0 Comment
  CDA1229  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -A San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  SJSU2901  Cirsium fontinale var. fontinale G. E. Pilz 1965-8-3 156 San Mateo E side Crystal Springs Reservoir in outer S Coast Ranges 121 Comment
  SEINET14157452  Cirsium fontinale var. fontinale W. N. Suksdorf San Mateo Comment
  CAS-BOT-BC285669  Cirsium occidentale var. occidentale A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC285672  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CAS-BOT-BC285670  Cirsium occidentale var. occidentale John H. Thomas 1963-5-20 10118 San Mateo Anu Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  POM54352  Cirsium occidentale var. venustum A. D. E. Elmer 1903-06 4259 San Mateo Crystal Springs Lake. Comment
  CDA1534  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  CAS-BOT-BC280515  Cirsium quercetorum Alice Eastwood 1922-5-28 11327 San Mateo Granada Comment
  CAS-BOT-BC280527  Cirsium quercetorum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Top of Quarry 4 Comment
  JROH634  Cirsium vulgare John H. Thomas 1964-11-15 10526 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  JROH643  Cirsium vulgare John Hunter Thomas 1992-7-24 25387 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC285865  Cirsium vulgare Cherie Wetzel 1969-7-28 996 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC162603  Clarkia Paul Reeberg 1989-5-16 s.n. San Mateo Upper Cow Trough Ravine, near Ridge Trail - San Bruno Mountains 289 Comment
  RSA130900  Clarkia amoena subsp. amoena E. K. Balls 1958-7-19 23570 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  JROH3005  Clarkia purpurea subsp. quadrivulnera John Hunter Thomas 1981-5-5 20537 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC165157  Clarkia rubicunda Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CHSC39185  Clarkia rubicunda R. N. Bowman 1984-6-29 3694 San Mateo 100 m. n of bridge over San Gregorio Creek in San Gregorio State Beach. Ca. 150 m. e of ocean. 3 Comment
  JROH3014  Clarkia rubicunda John H. Thomas 1970-1-1 15500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3015  Clarkia rubicunda Rachel Hays 1972-7-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3020  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165135  Clarkia rubicunda Peter H. Raven 1957-7-4 11044 San Mateo State Highway 9, 2.7 miles south-west of junction with State Highway 5 Comment
  CAS-BOT-BC165169  Clarkia rubicunda George Oberlander 1949-8-20 377 San Mateo Grassland on Sawyers Ridge Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  CAS-BOT-BC165174  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  RSA113614  Clarkia rubicunda Peter H. Raven 1957-7-6 11057 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. Comment
  JROH3036  Clarkia unguiculata John Hunter Thomas 1982-7-3 21067 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3337  Claytonia exigua subsp. exigua Toni Corelli 2005-2-16 282 San Mateo Jasper Ridge Biological Preserve, Stanford University; lost serpentine, Trail 5 121 Comment
  JROH5905  Claytonia perfoliata subsp. perfoliata M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail, west side of Searsville Dam Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  JROH3402  Clematis lasiantha Daniel Cohen 1953-4-11 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 1/3 of the way up Jasper Ridge road Comment
  JROH3412  Clematis lasiantha D. E. Breedlove 1971-5-31 19378 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  SJSU10609  Clematis lasiantha E. C. Carbett 1961-4-8 284 San Mateo Searsville L Park at head of San Francisquito Cr Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  JROH3421  Clematis ligusticifolia Toni Corelli 2007-8-28 336 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 2, above San Francisquito Creek along embankment 71 Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499407  Clintonia andrewsiana Mrs. Donahue 1921-5-30 s.n. San Mateo Kings Mt. Comment
  POM196565  Clintonia andrewsiana W. R. Dudley 1895-6-6 s.n. San Mateo Pescadero Creek near Iverson. Comment
  RSA3929  Clintonia andrewsiana W. R. Dudley 1895-6-8 s.n. San Mateo Road near Alpine School House, Black Mtn. Comment
  SEINET12044201  Clintonia andrewsiana L. S. Rose 1933-1 33254 San Mateo Kings Mt Comment
  CAS-BOT-BC240926  Collinsia multicolor Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  CAS-BOT-BC240935  Collinsia multicolor Reed C. Rollins 1942-4-30 3019 San Mateo San Bruno Hills, 1 mile south of Daly City 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
  POM15102  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Crystal Springs Lake. Comment
  UC26608  Collinsia multicolor J. Burtt Davy 1895-4-20 1025 San Mateo Millbrae Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  RSA409232  Collomia heterophylla D. D. Keck 1932-5-13 1777 San Mateo Above Woodside on La Honda road, E slope of the Santa Cruz Mtns. Comment
  UCR121542  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UC306536  Conium maculatum A. D. E. Elmer July, 1903 4951 San Mateo San Mateo Comment
  RSA176594  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC286207  Conyza canadensis J. H. Thomas 1958-8-1 7374 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CDA7456  Conyza sumatrensis J. T. Howell 1975-9-25 51508 San Mateo San Bruno Mountain. Comment
  JROH5743  Corallorhiza striata L. Nordby 1982-5-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. 2 km east of redwood stands Comment
  UCD138899  Corallorhiza striata K. L. Koch 1965-5-1 42 San Mateo on north side of Alpine Road, 1.4 miles from Portola Park turnoff. 426 Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC885647  Cordylanthus pilosus subsp. pilosus Roxana Stinchfield 1915-10-14 255 San Mateo basaltic columns near Stanford University Comment
  POM273538  Cordylanthus pilosus subsp. pilosus Lyman Benson 1934-7-28 6106 San Mateo Stanford University. Santa Cruz mtn range, S.F. Bay watershed. 152 Comment
  CAS-BOT-BC101479  Corethrogyne filaginifolia Miss Eastwood 1896-6-1 s.n. San Mateo Spring Lake Comment
  CAS-BOT-BC101483  Corethrogyne filaginifolia George Oberlander 1950-4-3 863 San Mateo Grassland east of Lower Crystal Spr. Lake Comment
  POM88007  Corethrogyne filaginifolia var. californica L. R. Abrams 1902-5-11 2459 San Mateo Crystal Springs. Comment
  SEINET12136511  Cornus californica R. C. Croker 1929-1 69 San Mateo Searsville Lake Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  UC527529  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 3 mi. w. Mayfield (on rd. to La Honda) 91 Comment
  RSA0034444  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-BC210362  Cornus sericea James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek below Stock Farm Comment
  SEINET12137024  Cornus sericea subsp. occidentalis J. I. McMurphy 1906-1 22 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH1873  Cornus sericea subsp. sericea John Hunter Thomas 1983-4-21 21643 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH1878  Cornus sericea subsp. sericea John Hunter Thomas 1987-5-26 24311 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC1211927  Coronopus didymus John H. Weiler, B. Hirano 1961-3-22 6132 San Mateo Moss Beach Comment
  CDA1904  Cortaderia jubata G. D. Barbe 1977-11-17 2353 San Mateo At intersection of Skyline Blvd. (Hwy 35) and Hwy 92 at Skylawn Memorial Park, between San Mateo and Half Moon Bay. 0 Comment
  CAS-BOT-BC180279  Corylus cornuta subsp. californica Elizabeth McClintock 1972-3-26 s.n. San Mateo Middle Buckeye Canyon. San Bruno Mountain Comment
  POM196594  Corylus cornuta var. californica W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  POM270391  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287307  Cotula australis Walter & Irja Knight 1965-3-21 957 San Mateo San Bruno Mt. North Power Line Ridge along summit road Comment
  RSA176543  Cotula coronopifolia John H. Thomas 1963-5-8 10063 San Mateo San Bruno Mtn in northern part of county. 305 Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  RSA101041  Cotula coronopifolia G. Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  RSA706101  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region: Sharp Park Golf Course, Pacifica 15 Comment
  UC1776756  Cotula mexicana D. Pendleton 2002-3-21 PDR 65823 San Mateo Sharp Park Golf Course, Pacifica Comment
  JROH1886  Crassula connata D. E. Breedlove 1971-5-5 19322 San Mateo Jasper Ridge Biological Preserve, Stanford University; above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH1893  Crassula connata John Hunter Thomas 1991-4-11 24983 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat launching area Comment
  CAS-BOT-BC291512  Crepis capillaris Roman Gankin; Peter Rubtzoff 1975-9-11 s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains Comment
  CHSC56524  Crepis vesicaria subsp. taraxacifolia Steven Triano 1988-5-24 175 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JROH1952  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4989  Crypsis schoenoides John Hunter Thomas 1982-11-6 21210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near Searsville Lab Comment
  UCSC007737  Cryptantha leiocarpa Becky Hendricks 2012-5-15 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1363  Cryptantha micromeres Paul R. Hichborn 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge near Searsville Lake Comment
  JROH1368  Cryptantha micromeres John Rawlings 2009-5-7 1069 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 in chaparral. 158 Comment
  JROH1379  Cryptantha microstachys John Hunter Thomas 1992-4-23 25164 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC80789  Cupressus macrocarpa George Oberlander 1950-2-1 422 San Mateo Cahill Ridge - Plants of the San Francisco Watershed Reserve Comment
  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
  SEINET12278070  Cuscuta salina E. A. Purer 1933-1 5408 San Mateo Near Baden Station Comment
  CDA5324  Cyclospermum leptophyllum C. M. Sill 1970-7-17 San Mateo Mrs. G. Yuki, 439 Alameda, Redwood City. 0 Comment
  RSA800141  Cyclospermum leptophyllum Peter Rubtzoff 1988-6-25 9927 San Mateo Menlo Park, on Willow Road near Alma Street. Comment
  CAS-BOT-BC287340  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City 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
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5007  Cynodon dactylon John Hunter Thomas 1988-6-6 24512 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC572651  Cynoglossum grande Howard T. Morse 1937-4-13 San Mateo Loma Mar Comment
  CAS-BOT-BC217971  Cynosurus echinatus Elizabeth McClintock; Paul Reeberg 1989-6-18 s.n. San Mateo Saddle Area, San Bruno Mountains 213 Comment
  JROH4380  Cyperus eragrostis John Hunter Thomas 1981-5-14 20577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517566  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo near Lake San Andreas Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH4392  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  RSA131973  Cytisus monspessulanus John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  RSA128366  Cytisus scoparius Peter H. Raven 1950-6-3 2259 A San Mateo Near San Andreas Lake. Comment
  CAS-BOT-BC189819  Dactylis glomerata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch, vicinity of Baden. Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  CAS-BOT-BC192228  Danthonia californica Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5042  Danthonia californica John Hunter Thomas 1982-5-18 20935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15903  Danthonia californica John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1728 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  SJSU15927  Danthonia californica John Rawlings, Toni Corelli 2016-5-13 1759 San Mateo Vallemar Bluff, Moss Beach. USGS Montara Mountain OE W 7.5 Minute (1:24,000 Scale) Topographic Map. 11 Comment
  UCD60456  Danthonia californica Beecher Crampton 1962-6-11 6503 San Mateo Sharp Park, suburb of Pacifica Mori's Point Road, west of State Hwy. 1. 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
  CHSC39840  Daucus pusillus Maibelle Williams 1929-5-10 San Mateo Moss beach. Comment
  RSA470468  Daucus pusillus T. Gertrude Williamson 1924-6-28 s.n. San Mateo Moss Beach Comment
  JEPS20107  Deinandra corymbosa Peter H. Raven 1957-9-1 11295 San Mateo 1.1 mi s Pigeon Point Lighthouse Comment
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Aug 2 2007
  UC127291  Deinandra corymbosa Katharine Brandegee 1908-3-8 San Mateo San Pedro Pt. Comment
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  OBI16296  Deinandra corymbosa Robert F. Hoover 1966-8-27 9942 San Mateo Halfmoon Bay Comment
  UC1069489  Deinandra corymbosa G. E. Sindel 1935-7-25 305 San Mateo mouth Pescadero Creek Comment
  CAS-BOT-BC299216  Deinandra corymbosa subsp. corymbosa Class Collection 1940-1-1 s.n. San Mateo Ano Nuevo Point Comment
  SJSU8526  Deinandra pentactis M. Perry 1979-10-5 210 San Mateo Cloverdale Road 0.25 mi N of its junction with Gazos Creek Road E of Pigeon Point Comment
  CAS-BOT-BC292120  Delairea odorata Elizabeth McClintock; Walter Knight; Irja Knight 1964-1-12 s.n. San Mateo San Bruno Mountain. Crocker Ave. Comment
  CAS-BOT-BC9213  Delphinium californicum J. H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC9210  Delphinium californicum subsp. californicum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountains 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-BC9249  Delphinium decorum Elizabeth McClintock; Phillip C. Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain, east side of mountain, above Harold Ave., Brisbane. Above Philip Wheeler's house Comment
  UC9150  Delphinium decorum subsp. tracyi Ivar Tidestrom May 1894 San Mateo Comment
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Jun 4 2007
  CAS-BOT-BC10286  Delphinium hesperium Harry A. Dutton 1900-4-29 s.n. San Mateo Unspecified Comment
  JROH3447  Delphinium hesperium subsp. hesperium John Hunter Thomas 1980-5-6 19927 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD18536  Delphinium nudicaule Roman Gankin 1950-7-2 3 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  CAS-BOT-BC116528  Delphinium patens subsp. patens W. Dudley 1900-3-16 s.n. San Mateo Above Tripp's Store, Woodside Comment
  CAS-BOT-BC7891  Delphinium variegatum Mrs. John C. Angsbury 1932-4-1 s.n. San Mateo Kings. Mtn. Comment
  CAS-BOT-BC7895  Delphinium variegatum Ned Cahill 1974-4-19 153 San Mateo near jct. of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC7928  Delphinium variegatum Adolph Daniel Edward Elmer 1903-5-1 4796 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7940  Delphinium variegatum John Hunter Thomas 1971-5-2 15829 San Mateo near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  SJSU1084  Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside hills 3 mi W of Woodside 182 Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  CAS-BOT-BC7939  Delphinium variegatum John Hunter Thomas 1969-4-24 14914 San Mateo near Canada College, Redwood City, near Farm Hill Drive Comment
  SEINET10536059 Image available Delphinium variegatum subsp. apiculatum David D. Keck 1933-5-11 Keck 2309 San Mateo Crystal Springs Lake. Common on rocky ground on open slopes about east side of lake. Comment
  CAS-BOT-BC7937  Delphinium variegatum subsp. variegatum John Hunter Thomas 1961-5-14 9386 San Mateo Along Canada Road near intersection of Edgewood Road 91 Comment
  JROH3463  Delphinium variegatum subsp. variegatum John H. Thomas 1955-5-6 4977 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  SEINET10476252  Dendromecon rigida Mary Susan Taylor 1978-8-30 Taylor 1865 San Mateo Comment
  CAS-BOT-BC630  Dendromecon rigida subsp. rigida George Thomas Oberlander 1950-3-11 414 San Mateo Southern boundary on Cahill Ridge. Comment
  CAS-BOT-BC192598  Deschampsia cespitosa subsp. holciformis L. R. Abrams 1927-6-15 s.n. San Mateo Spring Valley Lakes Comment
  UCD63821  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-6-1 San Mateo Hwy. #5, ca. 6 mi. from S.F. Co. line. Comment
  CAS-BOT-BC201907  Deschampsia elongata John H. Thomas 1961-5-23 9452 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  UCD63320  Deschampsia elongata S. S. Tillett; I. Sternback 1956-6-25 544 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CDA1962  Desmazeria rigida W. Davis 1971-5-27 San Mateo 263 Cerrito Avenue, Redwood City. 0 Comment
  CAS-BOT-BC905  Dicentra chrysantha Mrs. Ernest Meiere 1916-6-1 s.n. San Mateo Mt. Diablo Comment
  CLARK-A1528-683  Dicentra formosa William Horn, Jr. 1963-4-13 630413 #1 San Mateo Hillsborough 30 Comment
  UC137117  Dicentra formosa C. F. Baker 1902-3-22 344 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC911  Dicentra formosa subsp. formosa LeRoy Abrams 1902-4-13 2336 San Mateo Crystal Springs Comment
  POM87987  Dicentra formosa subsp. formosa L. R. Abrams 1902-4-13 2336 San Mateo Crystal Spring. Comment
  SEINET10533994  Dichelostemma capitatum Kimber 1918-4-25 KIMBER s.n. San Mateo Plants of the Santa Cruz Mountain Peninsula. Jasper Ridge. Serpentine. Comment
  SD39077  Dichelostemma capitatum subsp. capitatum Marie Cummings 1933-4-11 8 San Mateo Spring Valley Lake. Comment
  CAS-BOT-BC502167  Dichelostemma congestum Fred Hemphill 1973-4-22 743 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4663  Dichelostemma congestum John H. Thomas 1976-5-26 18151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  RSA184844  Digitaria sanguinalis L. S. Rose 1965-9-20 65108 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  CAS-BOT-BC150442  Diplacus aurantiacus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo unspecified Comment
  CAS-BOT-BC150444  Diplacus aurantiacus Fred Hemphill 1973-4-8 662 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC150456  Diplacus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo King's Mt., Santa Cruz Mts. Comment
  CAS-BOT-BC150460  Diplacus aurantiacus J. H. Thomas 1954-4-3 3811 San Mateo Sand Hill Road, about 1 mile W. of Junipero Serra Blvd. 91 Comment
  CAS-BOT-BC150462  Diplacus aurantiacus Phillip Wheeler 1965-6-14 s.n. San Mateo Gladys Canyon in Brisbane Comment
  CAS-BOT-BC150468  Diplacus aurantiacus Elizabeth McClintock; Paul Reeberg 1988-5-20 s.n. San Mateo Carter Street Comment
  RSA780382  Dipsacus fullonum Lyman Benson 1937-7-25 8472 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  CAS-BOT-BC121864  Dirca occidentalis J. H. Thomas 1962-3-24 9840 San Mateo Isenberg Ranch near Langley Hill 548 Comment
  JROH4200  Dirca occidentalis John H. Thomas 1967-3-13 12409 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4530  Dirca occidentalis L. S. Rose 1964-3-9 64004 San Mateo N end Crystal Springs L 121 Comment
  POM277204  Disporum hookeri var. hookeri Lyman Benson 1937-8-15 8491 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  UC1100272  Distichlis spicata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1602 San Mateo Marshes at mouth of Pescadero Creek Comment
  CDA19686  Dittrichia graveolens J. Beall 2001-10-18 PDR 064552 San Mateo North Coast; East end of Weeks St. next to Bay Lands Nature Preserve vicinity of East Palo Alto. 0 Comment
  JEPS30787  Dodecatheon clevelandii subsp. patulum G. Thomas Robbins 1937-4-11 89 San Mateo above San Mateo (on road to Woodside); above San Mateo Comment
  JROH3387  Dodecatheon hendersonii John Hunter Thomas 1981-4-5 20286 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  JROH1511  Draba verna John Hunter Thomas 1984-4-10 23285 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39077  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  RSA133097  Drymocallis glandulosa Donald A. Johansen 1933-5-18 705 San Mateo Hills above Searsville Lake along road from Portola to La Honda Comment
  CAS-BOT-BC159546  Drymocallis glandulosa var. glandulosa John H. Thomas 1965-4-29 10600 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159531  Drymocallis glandulosa var. glandulosa J. Clausen 1941-7-1 1871 San Mateo Base of Montara Mountain, N. of Montara. 121 Comment
  JROH30  Dryopteris arguta Lawrence J. Winship 1974-11-2 6 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474217  Dryopteris arguta H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67897  Dryopteris arguta Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Wax Myrtle Ravine, Six-Fern Rock Comment
  JROH1815  Dysphania ambrosioides John Hunter Thomas 1980-11-12 20165 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  SJSU16065  Dysphania ambrosioides Toni Corelli 2009-9-9 438 San Mateo Half Moon Bay State Beach, in low dunes, Half Moon Bay 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
  CAS-BOT-BC112954  Eleocharis macrostachya George Thomas Oberlander 1950-7-15 1054 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC112952  Eleocharis macrostachya Roxana S. Ferris 1920-9-3 2041 San Mateo Upper Mud Lake, Coalmine Ridge. Comment
  POM199072  Elymus californicus A. D. E. Elmer 1903-06 4700 San Mateo Crystal Springs Lake. Comment
  UC50673  Elymus californicus Kellogg and Brennon San Mateo San Gregorio's Redwoods Comment
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 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
  CAS-BOT-BC203691  Elymus glaucus subsp. glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. South slope, Montara Mts. Comment
  CAS-BOT-BC203682  Elymus glaucus subsp. glaucus W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Mountain Peninsula. On ridge by trail to Big Basin Comment
  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
  SJSU15415  Elymus pacificus Toni Corelli 2010-5-14 629 San Mateo Pescadero State Beach and Marsh Natural Preserve, west of Hwy. 1 5 Comment
  SJSU15941  Elymus trachycaulus subsp. trachycaulus John Rawlings, Kem Hickman 2016-5-26 1816 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  UCD62711  Elymus trachycaulus subsp. trachycaulus L. R. Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  CDA2047  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  RSA184928  Epilobium brachycarpum L. S. Rose 1966-8-6 66077 San Mateo San Bruno Mountain, head of Colma Canyon 213 Comment
  CAS-BOT-BC166616  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Guadalupe Valley Comment
  RSA40474  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Santa Cruz Mountain Peninsula: Guadalupe Valley Comment
  RSA40475  Epilobium canum subsp. canum C. F. Leithold 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula: Devil s Canyon, branch of Pescadero and Mill Cr. Black Mt. Comment
  JROH3056  Epilobium ciliatum subsp. ciliatum John Rawlings 2004-7-4 0924 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near Dennis Martin site 71 Comment
  SEINET12191216  Epilobium ciliatum subsp. ciliatum Unknown 1932-1 9174 A San Mateo Los Tramcos Woods 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
  RSA0028797  Epilobium ciliatum subsp. watsonii Lyman Benson 1934-7-4 6104 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  JROH3069  Epilobium densiflorum H. J. Dengler 1972-8-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3073  Epilobium torreyi John H. Thomas 1961-4-29 9194 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH63  Equisetum arvense John Hunter Thomas 1990-5-8 24856 San Mateo Jasper Ridge Biological Preserve, Stanford University 87 Comment
  CAS-BOT-BC57605  Equisetum telmateia L. R. A. 1902-3-16 2282 San Mateo Kings's Mountain Comment
  CAS-BOT-BC57608  Equisetum telmateia John Hunter Thomas 1954-4-3 3816 San Mateo La Honda Creek, about 1 mile north of La Honda 152 Comment
  CAS-BOT-BC57617  Equisetum telmateia J. H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along highway 152 Comment
  JROH71  Equisetum telmateia subsp. braunii John Hunter Thomas 1979-9-9 19717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD27774  Equisetum telmateia subsp. braunii Carl B. Wolf 1927-4-3 255 San Mateo Santa Cruz Mountains, 1 mile above La Honda 245 Comment
  CAS-BOT-BC204641  Eragrostis mexicana subsp. virescens John H. Thomas 1971-10-27 16028 San Mateo Near intersection of Alpine Road and Interstate Highway 280, behind the Stanford Campus Comment
  JROH5143  Eragrostis pectinacea var. pectinacea W. Lennihan 1980-11-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC299887  Erechtites glomeratus Alice Eastwood 1915-6-13 s.n. San Mateo Granada Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments
Dec 11 2013
  JROH645  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM55669  Erigeron glaucus C. F. Baker 1902-10-1 1738 San Mateo Pillar Point. Comment
  SD40122  Erigeron glaucus Edith A. Purer 1933-7-27 5382 San Mateo Two miles south of Pigeon Point. Comment
  UC1536738  Erigeron glaucus G. H. True Jr. 1936-6-7 482 San Mateo top of seaside bluff at cove 2 mi s of Pescadero 15 Comment
  CAS-BOT-BC216132  Eriodictyon californicum Fred Hemphill 1973-4-22 700 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216134  Eriodictyon californicum Alice Eastwood 1912-6-10 836 San Mateo Crystal Springs Comment
  CAS-BOT-BC216247  Eriodictyon californicum Lewis S. Rose 1941-7-2 41288 San Mateo King's Mountain 480 Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2716  Eriodictyon californicum John H. Thomas 1959-4-5 7667 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the western end of ridge Comment
  JROH2734  Eriodictyon californicum John Hunter Thomas 1992-7-24 25396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3479294  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountains, Kings Mountains 480 Comment
  SEINET12271679  Eriodictyon californicum J. H. Thomas 1959-1 7667 San Mateo Jasper Ridge, ca 5 mi SW of Palo Alto 152 Comment
  SEINET12271949  Eriodictyon californicum Unknown 1932-1 9151 San Mateo Comment
  JEPS127890  Eriogonum fasciculatum var. foliolosum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 309 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC251997  Eriogonum latifolium Elsie Zeile 1909-8-23 s.n. San Mateo Granada. Open sandy cliff, bordering beach Comment
  RSA165299  Eriogonum latifolium C. F. Baker 1902-10-1 1748 San Mateo Pillar Point. Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  SD38689  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, rwo miles south of Pigeon Point Comment
  UC1349016  Eriogonum latifolium Robert F. Thorne and P. Everett 1963-6-9 32238 San Mateo top of San Bruno Mountain San Bruno Mountain 335 Comment
  CAS-BOT-BC251971  Eriogonum latifolium Phillip C. Wheeler 1965-7-7 s.n. San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC252001  Eriogonum latifolium W. R. Dudley No date on label s.n. San Mateo Ocean View downs Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  RSA523299  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo Cove 2 miles south of Pescadero 15 Comment
  UCSC009195  Eriogonum latifolium Randall Morgan 2013-5-24 5531 San Mateo On steep, ocean-facing slope around 1+ mile inland, above upper Lake Lucerne 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
  SD38964  Eriogonum luteolum Edith A. Purer 1933-8-25 5510 San Mateo Near Schullser Blvd, on hillside, Skyline Blvd. Comment
  CAS-BOT-BC269004  Eriogonum nudum var. auriculatum Cherie Wetzel 1969-6-20 873 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC269002  Eriogonum nudum var. auriculatum Josephine D. Randall 1907-7-6 284 San Mateo Santa Cruz Peninsula. Iverson's, near Peters Creek Comment
  SD12580  Eriogonum nudum var. auriculatum Edith A. Purer 1933-8-4 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  JROH703  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH708  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1980-5-8 19956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH712  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1987-5-5 24247 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116760  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-5-27 s.n. San Mateo Near Summit Springs, Kings Mountain; Santa Cruz Mountain Peninsula Comment
  NY168698  Eriophyllum latilobum A. A. Heller 1907-5-28 8584 San Mateo This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM204328  Eriophyllum latilobum I. L. Wiggins 1929-7-4 3785 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  POM54247  Eriophyllum latilobum A. D. E. Elmer 1903-06 4397 San Mateo San Mateo Comment
  UC135308  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point, along coast and in places to summit of coast range; Pacific Coast Range, Pillar Point Comment
Read comments
Feb 2 2012
  CAS-BOT-BC301971  Eriophyllum staechadifolium Carl B. Wolf 1930-11-5 1808 San Mateo 2 miles south of San Gregorio 60 Comment
  RSA479800  Eriophyllum staechadifolium Jerry A. Powell 1972-3-10 909 San Mateo Mt. San Bruno Comment
  SEINET11850780  Eriophyllum staechadifolium var. artemisiaefolium E. A. Purer 1933-1 5395 San Mateo 2 mi S of Pigeon Point Comment
  JROH2595  Erodium botrys John H. Thomas 1969-4-12 14888 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2600  Erodium botrys John H. Thomas 1974-4-4 17085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2594  Erodium botrys John H. Thomas 1969-4-12 14888 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA176420  Eryngium aristulatum var. aristulatum John H. Thomas 1964-7-9 10443 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SD88370  Eryngium armatum Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  UC1167714  Eryngium armatum Peter H. Raven 1957-6-24 10971 San Mateo Pebble Beach Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  UC566783  Eryngium armatum Herbert L. Mason 1927-7-29 3982 San Mateo Pigeon Point Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC54509  Erysimum capitatum James McMurphy 1909-5-25 s.n. San Mateo La Honda. Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54841  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, soutwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54864  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54866  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo San Bruno Hills. Ridge 0.5 to 1 mile southeast of highest peak. 358 Comment
  CAS-BOT-BC54875  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54878  Erysimum franciscanum Peter H. Raven 1950-4-16 1781 San Mateo San Bruno Mountains. Colma Canyon. 182 Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54889  Erysimum franciscanum Catherine A. Toschi 1963-3-17 63 :53 San Mateo East slope San Bruno Mountains below radio station. 213 Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  RSA101844  Erysimum franciscanum G. B. Rossbach 1939-3-26 901 San Mateo Very near Sharp Park (Salada Beach) Comment
  RSA187279  Erysimum franciscanum John H. Thomas 1965-4-29 10608 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC1034698  Erysimum franciscanum G. B. Rossbach 1955-3-12 567 San Mateo lower w slope of ridge above E shore Crystal Spring Lake; Pulgas Ridge Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  UC10561  Erysimum franciscanum J. Burtt Davy 1895-4-20 1035 San Mateo Lake San Andreas Comment
  UC1301015  Erysimum franciscanum Helen K. Sharsmith 1963-2-16 5144 San Mateo summit San Francisco Bay Region, San Bruno Mountain 396 Comment
  PGM188  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  JROH5782  Erythranthe microphylla John Rawlings 2015-5-3 1776 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in serpentine prairie (Area C) 170 Comment
  CAS-BOT-BC403537  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CHSC1197  Eschscholzia californica L. Lancelot 1930-5-1 San Mateo Moss Beach. Comment
  JEPS51734  Eschscholzia californica Dr. L. M. Newlon 1921-1 244 San Mateo sea shore from Salada to Mussel Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD40077  Eschscholzia californica Edith A. Purer 1933-7-27 5384 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC403555  Eschscholzia californica T. S. Brandegee May 20 s.n. San Mateo Searsville Comment
  CAS-BOT-BC202736  Euonymus occidentalis Margaret A. Barry 1938-5-29 260 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC202741  Euonymus occidentalis A. D. E. Elmer 1903-5-1 4317 San Mateo Butano Creek Comment
  POM124471  Euonymus occidentalis A. D. E. Elmer 1903-1 317 San Mateo Butano Creek Comment
  JROH1804  Euonymus occidentalis var. occidentalis John Rawlings, Paul Heiple 2007-4-11 1026 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters inside Preserve boundary near its SW corner 115 Comment
  UC1795595  Euphorbia oblongata J. Beall 2002-6-3 PDR 120145 San Mateo Pope at San Francisquito Creek Comment
  CDA19846  Euphorbia oblongata D. Pendleton 2002-4-25 PDR 065843 San Mateo San Francisco Bay Area; Sandhill Rd, 0.25 mi N of Portola Rd, Woodside. 0 Comment
  HSC103383  Euphorbia oblongata Don Pendleton 2001-4-30 64453 San Mateo Along Sandhill Rd., next to Jasper Ridge Biological Reserve, on the north side of Portola Road, Portola Valley. Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  CAS-BOT-BC310626  Eurybia radulina J. H. Thomas 1957-8-16 6823 A San Mateo Along Skyline Blvd., near entrance to Isenberg Ranch 518 Comment
  JEPS20288  Eurybia radulina Lewis S. Rose 1955-9-19 55174 San Mateo Skyline Boulevard, 7 mi w of Saratoga 685 Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  JROH727  Euthamia occidentalis John H. Thomas 1974-9-19 17600 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SJSU5380  Felicia bergeriana C. S. Hendrick 1963-3-20 San Mateo Sharon Estate Comment
  JROH5148  Festuca arundinacea John Hunter Thomas 1977-6-16 18752 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH5167  Festuca arundinacea John Hunter Thomas 1989-6-6 24761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  RSA135730  Festuca californica var. californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove. Comment
  RSA582078  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  SJSU15412  Festuca idahoensis Toni Corelli 2009-5-20 427 San Mateo Rockaway Headlands, Pacifica, west of Hwy. 1 34 Comment
  JROH5489  Festuca microstachys S. J. McNaughton 1966-3-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. East slopes of serpentine grasslands in Ehrlich's area H. Comment
  JROH5509  Festuca microstachys John Rawlings 2005-3-30 0901 San Mateo Jasper Ridge Biological Preserve, Stanford University. Growing around and in cracks of serpentine rock outcrops in north-facing serpentine grassland (Area H), uphill and west of the exclosure. 146 Comment
  JROH5286  Festuca perennis John Hunter Thomas 1984-4-24 23305 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5293  Festuca perennis John H. Thomas 1959-8-22 8086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC279050  Festuca rubra Elizabeth McClintock; Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. Upper slopes of Firth Canyon, above Brisbane 182 Comment
  RSA582075  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  RSA159417  Filago gallica John H. Thomas 1961-5-7 9249 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  SJSU15424  Foeniculum vulgare Toni Corelli 2011-8-31 712 San Mateo Pescadero State Beach and Marsh Natural Preserve, along Butano Trail 18 Comment
  RSA85867  Fragaria chiloensis Mabel Peirson 1926-2-24 6519 San Mateo Moss Beach. Comment
  CAS-BOT-BC437031  Fragaria chiloensis W. R. Dudley 1895-2-9 s.n. San Mateo Near Arroyo de los Frijoles Pescadero, Santa Cruz Peninsula Comment
  UCD113190  Fragaria chiloensis Everett H. Everson 1951-4-28 40 San Mateo 2.2 miles south of Pescadero, on Highway 1. Comment
  CAS-BOT-BC457532  Fragaria vesca subsp. californica John H. Thomas 1961-5-7 9252 San Mateo San Bruno Mountain in northern part of county, 396 Comment
  CAS-BOT-BC389686  Fragaria vesca subsp. californica Jeanie Nieri 1953-2-14 75 San Mateo Hillside 6 miles west of Belmont Comment
  CAS-BOT-BC457519  Fragaria vesca subsp. californica Margaret A. Barry 1937-4-21 6 San Mateo woods on Coal Mine Ridge Comment
  CAS-BOT-BC457534  Fragaria vesca subsp. californica Alice Eastwood 1913-2-22 2454 San Mateo San Bruno Hills Comment
  CAS-BOT-BC166910  Frangula californica Peter Rubtzoff 1975-10-24 8428 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). Comment
  JEPS127868  Frangula californica subsp. californica Adam C. Schneider 2013-5-17 162 San Mateo Crystal Springs Reservoir Comment
  JROH3543  Frangula californica subsp. californica John H. Thomas 1974-9-19 17601 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3548  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53599  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1473 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC53600  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC53602  Frangula californica subsp. tomentella Alice Eastwood 1922-5-30 11333 San Mateo Crystal Springs lakes Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  CAS-BOT-BC211606  Frankenia salina Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Northwest beach, Point San Bruno, San Bruno Mountain Comment
  POM130919  Fraxinus latifolia A. D. E. Elmer 1903-07 4615 San Mateo San Mateo Creek Comment
  UCD122086  Fraxinus latifolia Alan T. Whittemore 1976-5-29 108 San Mateo Crystal Springs Canyon, San Mateo Creek, 1/2 mile east of dam on Crystal Springs Road. 39 Comment
  CAS-BOT-BC130139  Fritillaria affinis J. H. Thomas 1949-4-14 268 San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC130145  Fritillaria affinis R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Beach Comment
  POM196569  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo Ano Nuevo Point Comment
  JEPS4952 Image available Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro; ; Hillsboro, San Mateo Co. Comment
  SD39122  Fritillaria liliacea McCallum, Marie Cummings 1933-4-12 2148 San Mateo Open hills near Skyline Boulevard, above La Honda. Comment
  RSA0031337  Fumaria Peter Rubtzoff, B. Anderson 1988-4-12 9900 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CAS-BOT-BC422462  Fumaria officinalis Elizabeth McClintock 1972-3-26 s.n. San Mateo San Bruno Mountain. Brisbane. Comment
  CDA42126  Galium aparine L. S. Rose 1932-5-13 32240 San Mateo San Andreas Lake. 0 Comment
  UC28203  Galium californicum subsp. californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1144 San Mateo Pilarcitos Lake and Canyon Comment
  UC615504  Galium californicum subsp. californicum Beryl O. Schreiber 1932-5-29 299 San Mateo w San Mateo (Skyline Boulevard) Comment
  JROH3792  Galium murale John H. Thomas 1968-3-17 14189 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS6605  Galium porrigens var. porrigens H. A. Walker June 1914 3555 San Mateo San Bruno Hills Comment
  JROH799  Gamochaeta ustulata John Hunter Thomas 1985-5-7 23644 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204331  Gamochaeta ustulata I. L. Wiggins 1929-7-4 3772 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC303468  Gamochaeta ustulata Paul F. Covel 1936-4-24 272 San Mateo Skyline Blvd Comment
  RSA502345  Gamochaeta ustulata D. W. Taylor 1988-4-8 9506 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. 238 Comment
  CAS-BOT-BC194561  Garrya elliptica Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra point Comment
  UC1122637  Garrya elliptica G. E. Sindel 1935-8-19 336 San Mateo 3.25 mi n La Honda; Santa Cruz Quad. 426 Comment
  UC21591  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC278660  Gastridium phleoides L. R. Abrams 1937-1-1 s.n. San Mateo Hillsborough Comment
  CAS-BOT-BC278662  Gastridium phleoides Fred Hemphill 1973-5-14 812 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA135780  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda. Comment
  UCD66567  Gastridium phleoides A. A. Beetle 1942-6-11 3599 San Mateo Rt. 5, 15 miles south of San Bruno. Comment
  UCD66730  Gastridium phleoides Malcolm A. Nobs; S. Galen Smith 1949-8-26 1610 San Mateo About 1 mile south of Pigeon Point. Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  JROH2000  Genista monspessulana John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  UCSB51744  Genista monspessulana Farneman, H. 1967-3-18 San Mateo On north side of Half Moon Bay Rd.; 1 mi. west of its junction with State Hwy. 35; San Francisco Penninsula 457 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
  JROH2610  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0028484  Geranium dissectum John H. Thomas 1966-4-24 11577 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  UCR121492  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4956 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
  JROH2625  Geranium molle John H. Thomas 1967-3-26 12422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3150  Gilia achilleifolia subsp. multicaulis D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; north slope, Searsville Ridge Comment
  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
  JROH3165  Gilia clivorum John H. Thomas 1971-4-10 15756 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC184620  Gilia tricolor subsp. tricolor Mrs. Inez Ray Smith 1915-5-26 San Mateo near Crystal Springs (Hillsborough); , near Crystal Springs Comment
  JROH2025  Glycyrrhiza lepidota John H. Thomas 1971-8-7 16016 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west side of Searsville Lake Comment
  CAS-BOT-BC303849  Gnaphalium John H. Thomas 1961-5-7 9286 San Mateo San Bruno Mt in N part of county 396 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
  RSA218004  Gnaphalium ramosissimum Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge; Plants of San Bruno Mountain. Comment
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  SEINET11835917  Grindelia E. A. Purer 1933-1 5369 San Mateo Pigeon Point Comment
  CAS-BOT-BC304530  Grindelia hirsutula L. R. A. 1909-8-2 4249 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304532  Grindelia hirsutula W. R. Dudley 1897-10-10 s.n. San Mateo At Pilar Point Comment
  CAS-BOT-BC304538  Grindelia hirsutula John Thomas Howell 1933-5-26 11348 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC304551  Grindelia hirsutula Margaret A. Barry 1937-6-22 161 San Mateo Slope on Coal Mine Ridge Comment
  JEPS24549  Grindelia hirsutula V. F. Hesse 1959-6-18 2690 a San Mateo 4 mi n of Saratoga Summit 701 Comment
  JEPS29417  Grindelia hirsutula L. R. Heckard 1961-7-16 1264 San Mateo across road from transmitting station KQED (near summit of San Bruno Mt.); San Bruno Mt. 335 Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  POM57690  Grindelia hirsutula C. F. Baker 1902-5-1 687 San Mateo Crystal Springs Lake. Comment
  JROH820  Grindelia hirsutula John Hunter Thomas 1980-5-8 19941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  OBI49183  Grindelia stricta var. angustifolia Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SJSU15766  Grindelia stricta var. angustifolia Toni Corelli 2011-8-31 721 b San Mateo Pescadero State Beach and Marsh Natural Preserve. Along Butano Trail on levy along Butano Creek. 3 Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  UC1146645  Hainardia cylindrica Freed W. Hoffman 1941-6-1 2238 San Mateo South Coast Ranges, along Bayshore Highway Bayshore Highway; South Coast Ranges, Bayshore Highway Comment
  CAS-BOT-BC306285  Hedypnois cretica Thayne C. Parks 1963-5-28 321 San Mateo In Woodside Road, about 2 miles east of summit Comment
  CAS-BOT-BC309545  Helenium puberulum John Thomas Howell 1939-6-16 14744 San Mateo Crystal Springs Lake Comment
  JROH833  Helenium puberulum John H. Thomas 1970-7-5 15658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  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
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM161134  Helenium puberulum Josephine Randall 1907-7-24 s.n. San Mateo Near Crystal Springs Lake. Comment
  UC1598595  Helenium puberulum A. D. E. Elmer Jul 1903 4968 San Mateo San Mateo Comment
  CAS-BOT-BC309539  Helenium puberulum E. H. Richardson 1906-10-1 s.n. San Mateo Cooleys Landing Comment
  CAS-BOT-BC344859  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  RSA523310  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo Along Skyline Blvd.-Salada Beach Road. 305 Comment
  UC917226  Helenium puberulum W. A. Harvey and J. M. Tucker 1948-6-28 1701 San Mateo on ridge ca 3 mi n Pescadero Comment
  CAS-BOT-BC305340  Helianthella castanea Philip Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC224057  Helianthemum scoparium George Oberlander 1949-6-25 225 San Mateo San Francisco Watershed Reserve Comment
  JROH1836  Helianthemum scoparium Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM369779  Heliotropium curassavicum var. oculatum E. A. Purer 1933-7-27 18190 San Mateo Two miles south of Pigeon Point Comment
  POM305857  Heliotropium curassavicum var. oculatum Henry J. Ramsey, Henry J. Ramsey 1939-10-7 1163 San Mateo San Mateo Comment
  CAS-BOT-BC305930  Helminthotheca echioides R. E. Frenkel 1963-12-7 331 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  UCR80233  Hemizonia congesta L. S. Rose 1964-9-5 64070 San Mateo San Francisco Bay Region, Emerald Lake, west of Redwood City 244 Comment
  CAS-BOT-BC313459  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1935-9-21 35652 San Mateo Redwood City Comment
  CAS-BOT-BC314927  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-29 188 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314948  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  CAS-BOT-BC314942  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-28 10113 San Mateo East side of Crystal Springs Lake 121 Comment
  CAS-BOT-BC314944  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10227 San Mateo North of Belmont Comment
  UC990624  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1907-8-6 San Mateo e of causeway Crystal Springs Lakes Comment
  POM53161  Hemizonia corymbosa subsp. corymbosa C. F. Baker 1902-5-1 686 San Mateo Crystal Springs Lake. Comment
  POM360315  Hemizonia luzulifolia L. S. Rose 1937-9-21 37662 San Mateo Emerald Lake, west of Redwood City. 183 Comment
  POM360312  Hemizonia luzulifolia E. A. Purer 1933-8-4 18258 San Mateo Bayshore Hwy. Comment
  RSA136195  Hemizonia pungens subsp. maritima John H. Thomas 1954-5-28 4231 San Mateo Redwood City; near intersection of Bayshore and Main Street 0 Comment
  UCSB18565  Heracleum maximum Schulte, John 1963-4-28 San Mateo Sausal Creek, Jasper Ridge Area, 3 miles SW of Stanford, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH890  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-4-23 20484 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2927  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2921  Hesperolinon micranthum Herbert L. Mason 1921-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge Comment
  CAS-BOT-BC148471  Heteromeles arbutifolia Fred Hemphill 1973-4-15 681 San Mateo San Carlos, chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC942934  Heteromeles arbutifolia Lewis S. Rose 1948-11-25 48241 San Mateo Woodside 365 Comment
  CAS-BOT-BC310767  Heterotheca sessiliflora subsp. echioides Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain, Summit 365 Comment
  SD27842  Heuchera micrantha Carl B. Wolf 1929-6-8 3747 San Mateo Searsville lake along head of San Francisquito Creek 91 Comment
  HSC24041  Heuchera micrantha Mary Katherine Wicksten 1971-6-30 143 San Mateo Huddart Park, by W Union Creek, near Meadow Area Comment
  CAS-BOT-BC424378  Heuchera micrantha var. hartwegii Walter & Irja Knight 1963-7-14 s.n. San Mateo Base of Quarry 2; San Bruno Mountain Comment
  CAS-BOT-BC424429  Heuchera pilosissima W. R. Dudley 1900-3-17 s.n. San Mateo By down grade from Montara Mts to San Pedro Comment
  JROH910  Hieracium albiflorum John H. Thomas 1964-11-29 10545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48461  Hierochloe occidentalis James G. Daly 1934-1 179 San Mateo 3 mi w Skyline Boulevard Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  JROH1533  Hirschfeldia incana John Hunter Thomas 1977-6-16 18794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  CAS-BOT-BC55438  Hirschfeldia incana John F. Emmel 1971-4-24 345 San Mateo 0.25 mile southwest of Natalie M. Lipman School, south edge of Guadalupe Valley, west edge of Brisbane. 60 Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC206381  Hoita strobilina C. F. Leitholt 1893-7-22 s.n. San Mateo Guadalupe Valley Comment
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Sep 25 2021
  JROH5205  Holcus lanatus Le Roy Abrams 1900-10-1 1014 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville. Comment
  CAS-BOT-BC150059  Holodiscus discolor var. discolor Robert Robertson 1954-5-1 110 San Mateo By road 2 miles east of Pescadero 30 Comment
  CAS-BOT-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
  JROH3686  Holodiscus discolor var. discolor John H. Thomas 1962-7-15 9916 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near northern end of ridge. Comment
  JROH3693  Holodiscus discolor var. discolor John Hunter Thomas 1978-7-2 19249 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3698  Holodiscus discolor var. discolor John Hunter Thomas 1987-5-19 24289 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake Comment
  POM190456  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  UCD85414  Hordeum brachyantherum Lewis S. Rose 1963-4-27 63001 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  UC909372  Hordeum brachyantherum subsp. brachyantherum Ira L. Wiggins 1950-5-20 12352 A San Mateo Pescadero Beach Comment
  JROH5220  Hordeum brachyantherum subsp. californicum John H. Thomas 1968-5-3 14439 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  SEINET10598954  Hordeum californicum Delzie Demaree 1932-5-16 Demaree 9144 San Mateo Spring Valley Lakes. 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
  JROH5236  Hordeum marinum subsp. gussoneanum John H. Thomas 1963-5-12 10081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5240  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1977-6-16 18789 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC289463  Hordeum murinum subsp. leporinum Walter Knight; Irja Knight 1964-4-13 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  JROH5256  Hordeum murinum subsp. leporinum John H. Thomas 1967-5-12 12881 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC143926  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  CDA20055  Hydrocotyle ranunculoides L. Kuwahara 2002-10-9 PDR 064651 San Mateo San Francisco Bay Area; Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  UCR121587  Hypericum calycinum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4966 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CHSC99214  Hypericum canariense John Dittes; Josephine Guardino 2007-6-30 1457 San Mateo Central Coast; Ano Nuevo State Reserve; coastal terrace ca. 2.4 air-mile SE of Pidgeon Point Lighthouse; east side of Highway 1 on slope south and east of Gazos Creek. Undesignated section of Punta Del Ano Nuevo Land Grant. 21 Comment
  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
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Oct 31 2021
  CDA34775  Hypochaeris radicata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  SD39736  Hypochaeris radicata Edith A. Purer 1933-7-27 5394 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC1069667  Hypochaeris radicata G. E. Sindel 1935-7-30 316 San Mateo 2.5 mi nnw Pescadero; Santa Cruz Quad. Comment
  UCR121563  Hypochaeris radicata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4968 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
  CAS-BOT-BC311489  Hypochaeris radicata David D. Keck 1932-5-6 1462 San Mateo Belmont Comment
  RSA152265  Iris douglasiana John H. Thomas 1961-5-7 9304 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC1300946  Iris douglasiana Helen K. Sharsmith 1963-2-16 5146 San Mateo Summit of San Bruno Mountain; San Francisco Bay Region 396 Comment
  UCR260807  Iris douglasiana S. White 1998-6-5 34 San Mateo Central Coast, City of Moss Beach, west side of intersection of Beach Way and Marine Blvd., 40 ft. down path leading from Moss Beach Distillery 21 Comment
  POM290981  Iris douglasiana Robert Benson 1930-4-6 2043 San Mateo Moss Beach 15 Comment
  RSA6296  Iris douglasiana D. D. Keck 1932-5-6 1486 San Mateo Hills just west of Millbrae Highlands 120 Comment
  SEINET8529508 Image available Iris douglasiana Phyllis Kuehn 1967-5-7 18 San Mateo Skyline Blvd. Comment
  UCSB18695  Iris douglasiana Hutchinson, Sandra 1964-3-24 San Mateo Crystal Springs Lake; Sawyer Camp Road; about 0.6 mile from Skyline Blvd; entrance off of Millbrae Ave 106 Comment
  CAS-BOT-BC133655  Iris longipetala C. F. B. 1902-3-22 348 San Mateo South San Francisco Comment
  UCD138696  Iris longipetala Lewis S. Rose 1968-3-20 68009 San Mateo south base of San Bruno Mountains, south San Francisco. 30 Comment
  UCR156589  Iris macrosiphon P. W. Rundel 1963-6-11 1116 San Mateo Coast Mt. Range, San Francisco Bay drainage area, La Honda Rd. 457 Comment
  RSA366831  Iris missouriensis Lewis S. Rose 1938-4-1 38111 San Mateo San Bruno Hills, above Visitacion Valley 61 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-BC112607  Isolepis cernua Herbert L. Mason 1949-7-7 14027 San Mateo Nouth of Gazos Creek near the ocean. Southern part of county. Comment
  CAS-BOT-BC112615  Isolepis cernua George Thomas Oberlander 1949-7-10 273 San Mateo Marsh, Upper Crystal Spr. Lake. Comment
  SEINET5716637 Image available Isolepis cernua Shirley C. Tucker 1954-1 3796 San Mateo On sea cliffs, 17 mi. S of San Francisco.; Moss Beach Comment
  SEINET7589109 Image available Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, hills W of San Mateo. 183 Comment
  SEINET7589112 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  UCD37961  Isolepis cernua Beecher Crampton 1962-6-11 6499 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  UCD49893  Isolepis cernua S. Galen Smith; Malcolm A. Nobs 1949-8-25 1565 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  CAS-BOT-BC101874  Juglans J. H. Thomas 1954-4-21 3943 San Mateo San Francisquito Creek near SPRR tracks between Palo Alto and Menlo Park Comment
  JROH2771  Juglans hindsii John H. Thomas 1976-11-5 18432 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC352225  Juncus arcticus var. balticus Peter Rubtzoff; Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction with Old Guadalupe Trail. Comment
  UCR254887  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10044 San Mateo San Bruno Mountains, Willow Pond (located near Saddle Trail), c. 0.15 miles north of junction with Old Guadalupe Trail 210 Comment
  RSA0064344  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction iwth Old Guadalupe Trail. Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  RSA368183  Juncus bufonius var. bufonius L. S. Rose 1932-6-26 32362 San Mateo Pilarcitos Lake. Comment
  SJSU15798  Juncus bufonius var. bufonius Toni Corelli 2010-6-4 678 San Mateo Cowell Ranch Beach. 33 Comment
  UC1601740  Juncus effusus subsp. pacificus J. Burtt Davy 1893-6-22 757 San Mateo head of Lake Pilarcitos Lake Pilarcitos Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  UC1100998  Juncus lescurii Malcolm A. Nobs and S. Galen Smith 1949-8-26 1600 San Mateo Mouth of Pescadero Creek Comment
  UCR244655  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  RSA790997  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1979-7-26 9298 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS121402  Juncus usitatus John P. Krapek 2012-9-1 12 San Mateo Former Sharp Park Rifle Range, Pacifica Comment
  JROH4506  Juncus xiphioides John H. Thomas 1967-6-1 12977 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4516  Juncus xiphioides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289989  Juncus xiphioides Lyman Benson 1937-7-25 8474 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  JROH4041  Kickxia spuria John H. Thomas 1964-10-2 10514 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  JROH5269  Koeleria macrantha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340470  Lactuca saligna John H. Thomas 1969-10-19 15481 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC340638  Lactuca serriola Ned Cahill 1974-8-26 366 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH966  Lagophylla ramosissima John Hunter Thomas 1983-7-20 22900 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341628  Lagophylla ramosissima James I. McMurphy 1905-9-15 s.n. San Mateo Goat Ranch, just south of junction of State Highway 5 (Skyline Blvd.) and Old La Honda Road Comment
  POM194884  Lagophylla ramosissima D. D. Keck, William M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road. 686 Comment
  UCSC003371  Lasthenia Randall Morgan 2001-5-9 3727 San Mateo Bean Hollow State Beach, San Mateo County Comment
  CAS-BOT-BC339075  Lasthenia californica Margaret A. Barry 1937-5-1 37 San Mateo Coal Mine Ridge 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-BC339090  Lasthenia californica John H. Thomas 1969-4-24 14922 A San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  JROH980  Lasthenia californica subsp. californica John Hunter Thomas 1988-5-3 24440 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH981  Lasthenia californica subsp. californica John Hunter Thomas 1989-5-9 24704 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC483354  Lasthenia californica subsp. californica W. R. Dudley 1897-5-1 San Mateo south San Francisco Comment
  UC90024  Lasthenia californica subsp. californica T. S. Brandegee 1890-5-28 San Mateo San Gorgonio Comment
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Oct 12 2021
  POM55211  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-05 4426 San Mateo Millbrae. Comment
  CAS-BOT-BC355538  Lasthenia glabrata var. glabrata John H. Thomas 1997-4-11 17135 San Mateo to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  CAS-BOT-BC360401  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 138 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  JEPS28873  Lasthenia gracilis V. F. Hesse 1962-7-19 3166 San Mateo 6 Comment
  CAS-BOT-BC368189  Lasthenia minor Peter H. Raven 1950-4-30 1953 San Mateo Montara 15 Comment
  SFV1827  Lathyrus littoralis W. R. Russell 1961-6-5 s. n. San Mateo North end of Pacifica (formerly Sharp Park), sand hills about 1 block west of business district. Comment
  SEINET956172  Lathyrus vestitus subsp. puberulus A. D. E. Elmer 1903-1 4745 San Mateo San Mateo Comment
  POM223333  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  JROH2039  Lathyrus vestitus var. vestitus John Hunter Thomas 1985-4-11 23518 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC864588  Lathyrus vestitus var. vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno 182 Comment
  RSA20413  Lavatera arborea I. L. Wiggins 1935-6-29 8050 San Mateo Bluffs near the beach near old Pebble Beach Hotel, between Pescardero and Pingeo Point Comment
  CAS-BOT-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323178  Layia chrysanthemoides Elizabeth McClintock; Paul Reeberg 1987-5-31 s.n. San Mateo San Bruno Mountains. Comment
  POM298220  Layia chrysanthemoides D. D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  UC30646  Layia gaillardioides J. Burtt Davy Apr 21 1893-Apr 23 1893 1161 San Mateo Pilarcitos Lake and Canyon Comment
  UC990575  Layia gaillardioides James I. McMurphy 1909-5-25 San Mateo above Pulpit Rock; San Mateo Canyon Comment
  CAS-BOT-BC321091  Layia gaillardioides Kellogg; Brannan 1890-5-31 s.n. San Mateo Redwoods Comment
  RSA195579  Layia hieracioides John H. Thomas 1966-4-22 11568 San Mateo Jasper Ridge Biological Experimental Area. About 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC327465  Layia hieracioides Alice Eastwood; John Thomas Howell 1938-6-16 60047 San Mateo Ano Nuevo Pines Comment
  CAS-BOT-BC327510  Layia hieracioides W. R. Dudley 1900-5-19 s.n. San Mateo La Honda Stage Road below Grand View Saloon Comment
  POM216310  Layia hieracioides D. D. Keck 1933-5-11 2299 San Mateo Near W base of Montara Mountain Grade (S side of mountain.) Comment
  RSA92182  Layia hieracioides D. D. Keck 1932-5-11 1760 San Mateo Above Searsville Lake, on La Honda Road, E slope of Santa Cruz Mountains. Comment
  JEPS121448  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-3-9 25 San Mateo Crystal Springs Reservoir Comment
  POM88088  Layia platyglossa subsp. platyglossa L. R. Abrams 1902-5-11 2442 San Mateo Crystal Springs Lake. Comment
  POM298330  Layia platyglossa subsp. platyglossa D. D. Keck 1932-5-6 1491 San Mateo East side of Crystal Springs Lake. 61 Comment
  CAS-BOT-BC266607  Legenere limosa W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Ponds, Coal Mine Ridge Comment
  CAS-BOT-BC534547  Lemna gibba A. D. E. Elmer 1903-7-1 4765 San Mateo San Pedro Comment
  JROH4535  Lemna minor John Hunter Thomas 1978-7-2 19252 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC221525  Lepechinia calycina Daniel Cohen 1953-6-5 111 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC221536  Lepechinia calycina Fred Hemphill 1973-4-22 721 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2785  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  POM202471  Lepechinia calycina L. S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  RSA18304  Lepechinia calycina Carl B. Wolf 1927-5-31 412 San Mateo North end of Searsville Lake. Comment
  UC518036  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  CAS-BOT-BC89134  Lepidium didymum Class Collection 1940-1-1 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC89136  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC89140  Lepidium didymum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountains. Below parking lot. Comment
  JROH1538  Lepidium nitidum E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1553  Lepidium nitidum John Hunter Thomas 1987-4-7 24174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12595  Lepidium nitidum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountains. Below top of mountain in vicinity of radio station. Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  UCSB17149  Lepidium nitidum Schulte, John 1963-4-28 San Mateo Jurassic dike, Jasper Ridge; 3 miles southwest of Stanford campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  RSA6470  Lepidium perfoliatum D. D. Keck 1932-3-24 1400 San Mateo Redwood City, at border of San Francisco Bay. Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12950  Lepidium strictum Walter Knight; Irja Knight 1965-5-16 1201 San Mateo San Bruno Mountains. Crocker Avenue. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  JROH5273  Leptochloa fusca subsp. fascicularis Ann Lambrecht 2006-8-23 33 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry streambed of San Francisquito Creek 71 Comment
  CAS-BOT-BC226596  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226604  Leptosiphon ambiguus Ned Cahill 1974-4-1 149 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  CAS-BOT-BC226611  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  JROH3172  Leptosiphon androsaceus John H. Thomas 1971-4-10 15750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD3902  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Near La Honda Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  RSA8491  Leptosiphon androsaceus L. S. Rose 1933-4-30 33135 San Mateo Redwood City Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  CAS-BOT-BC226624  Leptosiphon grandiflorus W. R. Dudley 1896-7-30 s.n. San Mateo Summit of hill just beyond La Honda 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
  RSA0103655  Leptosiphon parviflorus C. B. Wolf 1929-5-25 3727 San Mateo Pebble Beach, S of Pescadero. Comment
  SJSU15218  Leptosiphon rosaceus Toni Corelli 2010-5-10 626 San Mateo Pillar Point Air Force Station 28 Comment
Read comments
Jan 23 2015
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  SEINET3071639 Image available Lessingia arachnoidea C. F. Baker 1902-9-2 1548 San Mateo Crystal Spring Lake. Comment
  CHSC39182  Lessingia hololeuca R. N. Bowman 1984-6-29 3693 San Mateo .7 m. e of Skyline Rd. on Crystal Springs Rd. 500 Comment
  JEPS20328  Lessingia hololeuca Lewis S. Rose 1949-8-14 49165 San Mateo w of Redwood City; Emerald Lake Comment
  JROH5723  Lessingia hololeuca John Rawlings 2015-9-23 1646 San Mateo Jasper Ridge Biological Preserve, Stanford University. Location may be supplied to researchers on request. 145 Comment
  UCR66541  Lessingia hololeuca L. S. Rose 1936-9-19 36732 San Mateo Crystal Springs Lake 152 Comment
  SEINET10958233 Image available Lessingia hololeuca Charles F. Baker 1902-10-20 Baker 1834 San Mateo Small colonies on grassy slopes. Comment
  UC905072  Leucanthemum vulgare John Thomas Howell 1949-7-4 24356 San Mateo n of Millbrae; Skyline Blvd. Comment
  CAS-BOT-BC257355  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  JEPS71207  Leymus X vancouverensis William S. Cooper 1919-7-22 207 San Mateo Ano Nuevo Pt. Comment
  UCD61319  Leymus californicus G. L. Stebbins Jr. 1941-4-26 3089 San Mateo 1 mile Northeast of La Honda, along San Gregorio Creek. Comment
  CAS-BOT-BC272184  Leymus triticoides Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Lower Guadalupe Parkway north of school, San Bruno Mountains Comment
  CAS-BOT-BC272188  Leymus triticoides John H. Thomas 1962-5-20 10113 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC272191  Leymus triticoides W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  RSA100982  Leymus triticoides G. Oberlander 1950-5-28 990 San Mateo Under redwoods, Cahill Ridge, San Francisco Watershed Reserve Comment
  POM193948  Lilaea scilloides W. R. Dudley 1893-05 s.n. San Mateo Santa Cruz Mountain peninsula: Back of Mira Vista, near Stanford University Comment
  SEINET12182118  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lake and Sky Line Drive Comment
  RSA700355  Limnanthes macounii T. W, Henrich 2004-4-21 s.n. San Mateo Moss Beach. Adjacent to Hwy 1 and immediately east of Half Moon Bay Airport, on Cabrillo Ranch property. Comment
  UC1278836  Limosella acaulis J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  UC202814  Linanthus androsaceus A. D. E. Elmer Apr 1903 4746 San Mateo Comment
  SEINET3696412 Image available Linanthus filipes Lewis S. Rose 1932-4-10 32140 San Mateo Redwood City. Comment
  SEINET12279071  Linanthus filipes L. S. Rose 1932-1 32140 San Mateo Redwood City Comment
  UCR122632  Linum bienne George K. Helmkamp, E. A. Helmkamp 2001-6-2 6764 San Mateo Central Coast, Purissima Road east of Half Moon Bay, 1.9 mi east of CA Hwy 1 168 Comment
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  CDA34068  Lithocarpus densiflorus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yinli Guo 2011-4-22 11 .157 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  RSA17953  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1927-7-14 s.n. San Mateo La Honda Grade. Comment
  RSA252256  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1974-12-28 1375 B San Mateo Santa Cruz Mtns. along Skyline Blvd (Hwy. 35) w of Redwood City, 2.8 mi n of King Mtn Rd. 640 Comment
  POM142561  Lithophragma affine subsp. affine C. F. Baker 1902-4-4 443 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC342308  Logfia filaginoides Peter H. Raven 1950-4-16 1803 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  CAS-BOT-BC342464  Logfia gallica John H. Thomas 1961-5-7 9249 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
Read comments
Oct 28 2021
  JROH729  Logfia gallica John H. Thomas 1961-4-29 9193 A 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
  UC1132203  Lolium multiflorum H. S. Yates 1935-5-8 5224 San Mateo 1 mi n Bolsa Pt.; Santa Cruz Quad. Comment
  RSA128341  Lolium perenne P. H. Raven 1950-6-3 2205 San Mateo along Millbrae Ave, Millbrae. Comment
  RSA6410  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  UC1073369  Lomatium caruifolium var. caruifolium George B. Rossbach 1955-3-26 373 San Mateo upper N slope, N of radio tower San Bruno Mountain 335 Comment
  UC21278  Lomatium caruifolium var. caruifolium J. Burtt Davy 1895-4-20 1031 San Mateo Lake San Andreas Comment
  UCD127627  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  UCSB4597  Lomatium dasycarpum Walker, Clifford 1954-4-20 San Mateo Canada Rd. and Jefferson Rd. Comment
  JEPS17132  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 b San Mateo Redwood City Comment
  CAS-BOT-BC240596  Lonicera hispidula A. D. E. Elmer 1903-7-1 4596 San Mateo Lake San Andreas Comment
  CAS-BOT-BC240600  Lonicera hispidula J. H. Thomas 1949-10-16 1157 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  CAS-BOT-BC240602  Lonicera hispidula W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Upper Pescadero Creek Comment
  CAS-BOT-BC240604  Lonicera hispidula Josephine D. Randall 1907-7-8 22 San Mateo Santa Cruz Peninsula. King's Mt. Road Comment
  JROH1664  Lonicera hispidula John Hunter Thomas 1989-5-9 24721 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5861  Lonicera hispidula Carol Zabel, Irene Brown 2003-7-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  RSA164830  Lonicera hispidula var. vacillans Wesley O. Griesel 1963-6-20 811 San Mateo Road between Palo Alto to State Hwy 5. 457 Comment
  SEINET8907183  Lonicera interrupta A. D. 1974-1 San Mateo hwy. 35 ca. 6 mi. from Jct. hwy. 92 701 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
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  RSA51271  Lonicera involucrata var. ledebourii P. H. Raven 1950-4-30 1983 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  RSA788374  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  UC595117  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  CHSC57081  Lotus corniculatus Steven Triano 1988-5-24 195 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. Comment
  SD227810  Lotus corniculatus G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3742 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SFV4289  Lotus corniculatus J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  JROH2044  Lotus corniculatus John Hunter Thomas 1977-6-16 18754 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  UC15579  Lotus formosissimus Alice Eastwood Apr 1896 San Mateo between Crystal Springs and Millbrae Comment
  RSA120441  Lotus heermannii W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  UC15648  Lotus micranthus J. Burtt Davy Jun 21 1893-Jun 23 1893 1156 San Mateo Pilarcitos Lake and Canyon Comment
  JEPS55903  Lotus scoparius Dr. L. M. Newlon 1921-7-30 249 San Mateo Salada Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH3078  Ludwigia peploides subsp. peploides John Hunter Thomas 1981-7-12 20706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC60245  Lunaria annua Emma Millett 1917-4-4 s.n. San Mateo Kings Mountain. Comment
  CAS-BOT-BC60248  Lunaria annua J. H. Thomas 1965-4-29 10632 San Mateo San Bruno Mountain. Comment
  CAS-BOT-BC198275  Lupinus W. R. Dudley 1900-5-19 s.n. San Mateo 1/2 mile west of summit of La Honda Stage Road - Santa Cruz Mountain Peninsula Comment
  UC81978  Lupinus affinis C. F. Baker 1902-4-6 473 San Mateo Crystal Springs Lake Comment
  RSA262978  Lupinus affinis Dunn, Brown 1946-5-15 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the highway from Woodside to La Honda. Comment
  SEINET5558503  Lupinus albifrons H. S. Gentry 1931-1 31 San Mateo Collected about 2 miles W of San Bruno. Comment
  SEINET10488409  Lupinus albifrons Charles F. Baker 1903-4-6 Baker 1889 San Mateo San bruno hills, tufts of many stems on a woody base Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail road Comment
  CAS-BOT-BC195793  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48497 San Mateo Highway 5 - junction Pagemill Road, 0.5 miles north Comment
  CAS-BOT-BC195796  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48467 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC196109  Lupinus albifrons var. collinus Javier Penalosa 1963-3-30 2725 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  RSA800198  Lupinus albifrons var. collinus Robert F. Thorne, Percy C. Everett 1963-6-9 32209 San Mateo On top of San Bruno Mountain, near TV tower. 335 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-BC8521  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  CAS-BOT-BC8524  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, field back of Cedro Cottage Comment
  RSA0065264  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  SD39019  Lupinus arboreus Edith A. Purer 1933-7-27 5371 San Mateo Partially stabilized sand dunes 2 miles south of Pigeon Point Comment
  SD39024  Lupinus arboreus Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  POM11367  Lupinus arboreus var. eximius C. P. Smith 1922-4-29 3503 San Mateo Montara Mountains, above Lake Pilarcitos. Comment
  JROH2116  Lupinus bicolor John H. Thomas 1977-4-8 18518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA178649  Lupinus bicolor subsp. pipersmithii James I. McMurphy 1911-4-22 s.n. San Mateo Stanford Park, near Stanford University. Comment
  POM10639  Lupinus bicolor subsp. umbellatus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range. Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  SEINET12154528  Lupinus densiflorus var. aureus G. A. McCallum 1933-1 s.n. San Mateo Los Franus ranch Comment
  RSA212136  Lupinus densiflorus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough. 91 Comment
  UC703121  Lupinus formosus Alice Eastwood, John Thomas Howell 1941-7-4 9688 San Mateo Crystal Spring Lakes Comment
  SBBG11058  Lupinus formosus D. E. Breedlove 1961-6-18 600 San Mateo 3 mi S of rd to Half Moon Bay on US 5 365 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
  SEINET4853650  Lupinus lasiotropis Carl F. Baker Not on sheet 470 San Mateo Crystal Springs Lake. Comment
  RSA0003448  Lupinus lasiotropis Edward L. Greene 470 San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
  RSA134073  Lupinus latifolius subsp. latifolius W. R. Dudley 1894-7-9 s.n. San Mateo Summit of Bear Gulch Road. Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  JROH2129  Lupinus nanus John H. Thomas 1975-4-19 17801 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5565  Lupinus nanus John Rawlings 2013-4-19 1147 San Mateo Jasper Ridge Biological Preserve, Stanford University; south edge of Rd B along the northeast base of the powerline hillock 91 Comment
  SEINET7076097 Image available Lupinus nanus 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
  UC1303093  Lupinus nanus James McMurphy 1911-4-24 San Mateo corner between San Francisquito and Los Trancos creeks near Stanford University; betw San Francisquito and Los Trancos creeks Comment
  JROH5732  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA178637  Lupinus nanus subsp. nanus James I. McMurphy 1911-4-24 s.n. San Mateo Corner between San Francisquito and Los Trancos creeks near Stanford University. Comment
  POM276299  Lupinus polycarpus Lyman D. Benson 1934-3-31 5747 San Mateo Menlo Park 30 Comment
  CAS-BOT-BC157981  Lupinus polycarpus Peter Rubtzoff 1979-7-26 9296 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In upper par to fEast Fork Colma Creek canyon area Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  POM276548  Lupinus variicolor Lyman D. Benson 1931-3-3 2619 San Mateo Moss Beach 30 Comment
  SJSU16062  Lupinus variicolor Toni Corelli 2010-4-9 515 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica Comment
  UC201947  Lupinus variicolor A. D. E. Elmer May, 1903 4709 San Mateo San Pedro Comment
  SEINET10489095  Lupinus variicolor Walter Knight, Irja Knight 1965-3-28 Knight 974 San Mateo San bruno mtn. In grassy area. April brook. Only occasional plant. Comment
  SEINET10489108  Lupinus variicolor Smith 1948-4-23 Smith 48139 San Mateo Hwy 1, montara, government property. Comment
  UCD109673  Lupinus variicolor P. B. Kennedy 1921-6-3 s.n. San Mateo back of Millbrae Ranch. Comment
  JROH4529  Luzula comosa var. comosa John Hunter Thomas 1982-3-12 20805 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441363  Luzula subsessilis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain: on top of mountain Comment
  CAS-BOT-BC441366  Luzula subsessilis Javier Penalosa 1963-3-30 2723 San Mateo San Bruno Mountain: North of Randolph Drive at Hillside Blvd in South San Francisco 91 Comment
  UC311531  Lysichiton americanus A. D. E. Elmer June, 1903 4551 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0011333  Lythrum hyssopifolia John H. Thomas 1959-7-8 8020 San Mateo Pescadero Beach. Comment
  JEPS19491  Madia elegans Peter H. Raven 1957-9-1 11299 San Mateo King Mountain road 2.3 mi w Woodside Road Comment
  CAS-BOT-BC343903  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  POM362143  Madia elegans subsp. elegans D. D. Keck 1931-10-5 1279 San Mateo Crystal Springs lake, E side Comment
  CAS-BOT-BC344491  Madia exigua D. E. Breedlove 1974-5-13 36227 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH1046  Madia exigua John H. Thomas 1975-5-26 17903 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1065  Madia exigua John Hunter Thomas 1992-5-25 25349 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA63052  Madia exigua L. S. Rose 1950-5-20 50145 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC343339  Madia gracilis James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CHSC56970  Madia gracilis Steven Triano 1988-5-24 182 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
  SBBG33375  Madia gracilis A. D. E. Elmer -Apr-1901 San Mateo Stanford University Comment
  RSA11165  Madia gracilis C. B. Wolf 1927-7-14 595 San Mateo Summit of Kings Mountain road at junction with Skyline Blvd. 610 Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC345112  Madia sativa Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CAS-BOT-BC345114  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC345139  Madia sativa Margaret A. Barry 1937-7-17 211 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC345121  Madia sativa James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  CDA8283  Madia sativa A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  CAS-BOT-BC510725  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA244377  Maianthemum racemosum subsp. amplexicaule C. W. Tilforth, John Dourley 1973-7-19 932 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514166  Maianthemum stellatum George Oberlander 1950-3-18 513 San Mateo Pilarcites Canyon Comment
  CAS-BOT-BC203907  Malacothamnus aboriginum George Oberlander 1949-7-10 258 San Mateo San Francisco Watershed Reserve. South end of Sawyer Ridge Comment
  CAS-BOT-BC206248  Malacothamnus fasciculatus Josephine D. Randall 1907-7-24 249 San Mateo Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC344965  Malus pumila Peter Rubtzoff 1981-6-30 9656 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  SJSU2303  Malva arborea C. W. Sharsmith 1950-4-16 6632 San Mateo near Pescadero Point near Pescadero Comment
  SBBG53017  Malva arborea M. R. Benedict 1978-5-7 San Mateo Moss Beach near Princeton Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  JROH1898  Marah fabacea James Newman 1951-4-21 41 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  UC25352  Marrubium vulgare Michener and Bioletti Sept. 1891 San Mateo San Bruno Road Comment
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Jul 2 2009
  SEINET3816869  Matricaria discoidea Cynthia Taylor 1971-6-8 151 San Mateo Corner of watkins avenue and railroad tracks, Atherton 17 Comment
  JROH2154  Medicago arabica John Hunter Thomas 1990-5-8 24853 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH2155  Medicago arabica John Hunter Thomas 1992-4-23 25156 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  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
  SJSU4256  Medicago lupulina E. J. Dalton 1962-10-7 39 San Mateo San Gregorio Cr 2 mi SW of La Honda Comment
  JROH2171  Medicago polymorpha John Hunter Thomas 1983-5-23 22243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2160  Medicago polymorpha John H. Thomas 1957-4-16 6659 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5298  Melica californica Herbert Dengler 1957-4-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5306  Melica imperfecta John Hunter Thomas 1980-5-8 24852 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  POM296604  Melica imperfecta Lyman Benson 1935-5-5 6537 San Mateo Lake Searsville 152 Comment
  JROH5316  Melica torreyana W. Lennihan 1989-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Intersection of Road D and the trail to Rattlesnake Rock. Comment
  SEINET3561264 Image available Melica torreyana Lewis S. Rose 1932-5-3 32216 San Mateo San Bruno. 183 Comment
  JROH2191  Melilotus indicus John Hunter Thomas 1980-5-8 19938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  UC311106  Melilotus indicus A. D. E. Elmer June, 1903 4278 San Mateo Crystal Springs Lake Comment
  JROH2185  Melilotus indicus John H. Thomas 1971-5-30 15952 San Mateo Jasper Ridge Biological Preserve, Stanford University; at dam Comment
  UCD163783  Melilotus indicus Peter Rubtzoff 1988-6-9 9923 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
  JROH2829  Mentha X piperita Ruth Porter 1997-11-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; low flow crossing Comment
  JROH2816  Mentha pulegium John Hunter Thomas 1980-11-12 20163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA20054  Mentha pulegium L. Kuwahara 2002-10-9 PDR 064652 San Mateo San Francisco Bay Area; Along dam of reservoir at Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  UCD148357  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo east fence line, Sanchez Adobe House, south side of Linda Mar Blvd., Pedro Valley. Comment
  CAS-BOT-BC438138  Mesembryanthemum nodiflorum T. Winfield 1973-10-10 1222 San Mateo San Francisco Bay: Redwood City Comment
  UC1191376  Mesembryanthemum nodiflorum Malcolm A. Nobs, S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City. Comment
  CAS-BOT-BC428907  Micranthes californica Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City, near Hesler farm entrance - Hills. 45 Comment
  JROH3907  Micranthes californica John Hunter Thomas 1981-4-5 20279 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC348764  Microseris bigelovii E. L. Greene 1886-5-10 s.n. San Mateo Near Belmont Comment
  SJSU1071  Microseris douglasii C. W. Sharsmith 1951-4-6 5826 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  OBI15616  Microseris douglasii Lewis S. Rose 1966-5-2 66037 A San Mateo Emeral Lake, W of Redwood City 91 Comment
  CAS-BOT-BC349015  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  JROH1140  Microseris douglasii subsp. douglasii John H. Thomas 1957-4-16 6658 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  UC203060  Microseris douglasii subsp. douglasii A. D. E. Elmer May, 1903 4721 San Mateo Crystal Springs Lake 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
  SEINET12269792  Mimulus aurantiacus L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  SEINET8208860  Mimulus aurantiacus J. I. McMurphy 1906-5-20 25 San Mateo Kings Mt. Santa Cruz Mts. Comment
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  POM5152  Mimulus cardinalis A. D. E. Elmer 1903-07 4941 San Mateo Lake San Andreas. Comment
  UC886188  Mimulus grandis Alice Eastwood 1912-6-2 210 San Mateo Granada Comment
  POM151741  Minuartia douglasii Edward L. Greene 1902-5-4 835 San Mateo Woodside. Comment
  UC1111631  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w San Mateo 182 Comment
  CAS-BOT-BC214076  Monardella villosa Elizabeth McClintock 1965-8-1 s.n. San Mateo Slope above April Brook, San Bruno Mountain Comment
  RSA185020  Monardella villosa L. S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 366 Comment
  SEINET10961433  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 2 San Mateo 0.35 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JROH2849  Monardella villosa subsp. villosa John Hunter Thomas 1983-6-29 22712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC104640  Monardella villosa subsp. villosa Katharine Brandegee 1905-6-20 San Mateo Near Lake Pilarcitos Comment
  JROH2834  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-BC327791  Monolopia gracilens Donald A. Johansen 1932-5-21 683 San Mateo East of La Honda, Santa Cruz Mountains. Comment
  CAS-BOT-BC444950  Montia fontana John H. Thomas 1973-4-25 16688 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  CAS-BOT-BC444952  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts. 1 mi. no of summit of La Honda Grade on Skyline Blvd. Comment
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  UC672605  Morella californica Herbert L. Mason 1927-4-23 3694 San Mateo Pescadero Creek near Bloomquist Mill Comment
  CAS-BOT-BC508581  Muilla maritima Cynthia Steele 1948-4-18 34 San Mateo Redwood City Comment
  SFV16938  Myosotis discolor J. N. Hogue 1980-9-1 82 .2 San Mateo Santa Cruz Mountains Heritage Grove Redwood Reserve, near Loma Mar. Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 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
  JROH3468  Myosurus minimus John Hunter Thomas 1981-4-5 20265 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC101771  Myrica californica John H. Thomas 1976-10-7 18394 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  JROH6206  Narcissus tazetta Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Rd. 20 and south of the Douglas Iris Site. 85 Comment
  CAS-BOT-BC259766  Nassella cernua Walter & Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CAS-BOT-BC260023  Nassella lepida John Thomas Howell 1952-5-28 28316 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC260026  Nassella lepida George Oberlander 1950-5-6 774 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  POM199067  Nassella pulchra A. D. E. Elmer 1903-06 4712 San Mateo Crystal Springs Lake. Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  RSA106988  Nassella pulchra L. S. Rose 1956-5-7 56071 San Mateo Skyline Blvd west of San Mateo. 183 Comment
  UCD87671  Nassella pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd. West of San Mateo. 91 Comment
  JROH3207  Navarretia heterodoxa John Hunter Thomas 1986-6-9 24092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7963123 Image available Navarretia heterodoxa L. S. Rose 1941-1 41269 San Mateo West of Redwood City, Emerald Lake 120 Comment
  SJSU42  Navarretia mellita C. D. Duncan 1925-7-13 San Mateo Mud Lakes, summit of Coal Mine Ridge above Corte Madera Cr Comment
  JROH3217  Navarretia squarrosa John Hunter Thomas 1983-7-20 22892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD3919  Navarretia squarrosa Ulysses S. Grant 1925-9-2 San Mateo Burlingame Comment
  SEINET12279167  Navarretia squarrosa Unknown 1933-1 10468 San Mateo near Baden Station Comment
  JROH2755  Nemophila John Hunter Thomas 1992-4-7 25130 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock. Comment
  CAS-BOT-BC219474  Nemophila parviflora Alice Eastwood 1922-5-27 11325 San Mateo La Honda Comment
  CAS-BOT-BC219478  Nemophila parviflora Ira L. Wiggins 1928-4-14 2901 San Mateo Alpine Creek Road Comment
  SBBG41706  Nemophila parviflora J. T. Howell 1971-4-12 San Mateo Butano St Park, Santa Cruz Mtns 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
  UCR3596  Notholithocarpus densiflorus Wm. Horn Jr. 1963-8-26 630826- 01 San Mateo 7 mi. south of Skyline Blvd. - Half Moon Bay [Hwy 92] junction on Skyline (State Route 5) 610 Comment
  CAS-BOT-BC140426  Oemleria cerasiformis W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam Comment
  CAS-BOT-BC140435  Oemleria cerasiformis Walter Knight; Irja Knight 1965-4-4 1011 San Mateo Bitter Cherry Ravine Comment
  CAS-BOT-BC140449  Oemleria cerasiformis W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountains Comment
  JROH3709  Oemleria cerasiformis John H. Thomas 1975-5-2 17852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3719  Oemleria cerasiformis Toni Corelli 2003-1-28 253 San Mateo Jasper Ridge Biological Preserve, Stanford University; limited access Road A, that goes toward Whiskey Hill Gate 91 Comment
  POM89248  Oemleria cerasiformis Winslow s.n. San Mateo King's mt. near Palo Alto. Comment
  RSA124761  Oemleria cerasiformis John H. Thomas 1958-2-15 6983 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  UC12459  Oemleria cerasiformis J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Creek Comment
  UC860380  Oemleria cerasiformis Lewis S. Rose 1941-3-12 40123 San Mateo w of San Bruno (Skyline Blvd) 152 Comment
  POM275613  Oemleria cerasiformis Lyman D. Benson 1929-3-5 978 San Mateo Road from Searsville Lake to King's Mountain. Comment
  SEINET12189809  Oenothera elata L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  JEPS43966  Oenothera glazioviana W. L. Jepson 1910-8-17 4156 San Mateo Purissima Ck. Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  RSA0087773  Orobanche uniflora subsp. occidentalis C. F. Baker 1903-4-8 1927 San Mateo Crystal Springs Lake. 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
  POM15373  Orthocarpus erianthus var. roseus A. D. E. Elmer 1903-05 4670 San Mateo South San Francisco. Comment
  RSA407989  Orthocarpus floribundus Francis W. Pennell, D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  POM286414  Orthocarpus purpurascens Lyman D. Benson 1930-5-1 2051 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  JROH304  Osmorhiza berteroi John Hunter Thomas 1992-5-26 25354 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  UCSB16637  Oxalis oregana Schulte, John 1963-4-14 San Mateo 2 miles by air west of Portola Valley 182 Comment
  JROH3093  Oxalis pes-caprae Toni Corelli 2012-2-28 379 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 along south side of upper section of trail 121 Comment
  JROH5870  Parthenocissus quinquefolia Ann Lambrecht 2011-7-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; at Bear Creek crossing near Preserve boundary fence Comment
  JROH5349  Paspalum distichum John Hunter Thomas 1981-7-12 20699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1101567  Paspalum distichum Verne Grant and Herbert L. Mason 1946-8-28 13085 San Mateo at entrance to San Francisco County Prison Comment
  JROH1403  Pectocarya pusilla John H. Thomas 1981-4-27 20499 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4103  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA14984  Pedicularis densiflora L. S. Rose 1935-2-24 35016 San Mateo Belmont. Comment
  UCR136713  Pedicularis densiflora L. S. Rose 1948-3-31 48031 San Mateo San Francisco Bay Region, Millbrae Highlands 91 Comment
  JROH4108  Pedicularis densiflora John H. Thomas 1961-4-8 9068 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Searsville Lake end of ridge Comment
  LA209451  Pedicularis densiflora R. L. A.; 1902-3-16 2278 San Mateo Woodside 60.0 Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
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Jun 13 2020
  CAS-BOT-BC266668  Pedicularis dudleyi W. R. Dudley 1903-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Iverson's, Pescadero Creek 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
  SBBG33318  Pedicularis dudleyi A. D. E. Elmer -Jun-1903 4289 San Mateo Pescadero Crk (Iverson's); ISOTYPE Comment
Read comments
Oct 5 2011
  UCSC006899  Pedicularis dudleyi Randall Morgan 1988-6-5 1236 San Mateo Upper Escape Rd, Portola S.P. Comment
  SFV4292  Pelargonium capitatum J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  CAS-BOT-BC207027  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  JROH103  Pellaea andromedifolia John Hunter Thomas 1982-11-8 21257 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Path below dam Comment
  JROH105  Pellaea mucronata var. mucronata L. R. Abrams 1916-3-27 5588 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  CAS-BOT-BC327977  Pentachaeta alsinoides John H. Thomas 1958-5-10 7140 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC330499  Pentachaeta bellidiflora John H. Thomas 1971-5-2 15821 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about 3 miles westward from Redwood City. 152 Comment
  JROH108  Pentagramma triangularis subsp. triangularis John H. Thomas 1964-11-29 10544 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH112  Pentagramma triangularis subsp. triangularis Lawrence J. Winship 1974-11-16 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM132815  Perideridia kelloggii A. D. E. Elmer 1901-09 3411 San Mateo Crystal Springs Comment
  JROH3242  Persicaria amphibia Le Roy Abrams 1900-10-1 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3276  Persicaria maculosa John Hunter Thomas 1980-11-27 20196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area. Comment
  CAS-BOT-BC419388  Persicaria punctata W. R. Dudley 1897-10-10 s.n. San Mateo Toward Pilar Pt. Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  POM87739  Petunia parviflora L. R. Abrams 1902-9-21 2994 San Mateo Crystal Lake Comment
  UC1084386  Phacelia californica G. Thomas Robbins 1937-4-11 92 San Mateo in field along road to Woodside above San Mateo Comment
  POM65579  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  JROH2760  Phacelia nemoralis subsp. nemoralis John H. Thomas 1967-5-31 12939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  CAS-BOT-BC258933  Phalaris aquatica J. H. Thomas 1958-8-1 7375 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  JROH5355  Phalaris aquatica John Hunter Thomas 1978-7-2 19243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5371  Phalaris aquatica John Hunter Thomas 1985-5-21 23660 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat house. Comment
  JROH5377  Phalaris aquatica John Hunter Thomas 1989-6-6 24760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC259005  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  POM199083  Phalaris californica A. D. E. Elmer 1903-06 4699 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC250643  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  JROH5385  Phleum pratense John Rawlings 2009-7-1 1023 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek. 82 Comment
  SD49975  Phoradendron leucarpum subsp. tomentosum John H. Thomas 1959-8-22 8080 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto 152 Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  CAS-BOT-BC452001  Phyllospadix scouleri Robert Setzer 1969-7-3 3311 San Mateo Montara Beach Comment
  CAS-BOT-BC251002  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1988-4-27 s.n. San Mateo San Bruno Mountains. 40 feet up trail from GCP towards Old Quarry in Colma Canyon, on south side of trail 91 Comment
  JROH4174  Physalis philadelphica Toni Corelli 2011-7-12 370 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road B 77 Comment
  CAS-BOT-BC142179  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3726  Physocarpus capitatus John H. Thomas 1977-4-19 18535 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek along low flow crossing Comment
  CAS-BOT-BC142183  Physocarpus capitatus W. R. Dudley 1902-6-1 s.n. San Mateo Steven's Creek Road, lower part - Santa Cruz Peninsula Comment
  CAS-BOT-BC206940  Pickeringia montana var. montana George Oberlander 1950-2-1 412 San Mateo Southern Cahill - San Francisco Watershed Reserve Comment
  RSA10337  Pickeringia montana var. montana H. A. Barker 1926-5-1 567 San Mateo Kings Mt. Comment
  SEINET11737741  Pinus halepensis Unknown 1931-1 7790 San Mateo Gov. Rolph Estate Comment
  CAS-BOT-BC136531  Piperia candida A. D. E. Elmer 1903-8-1 5058 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137312  Piperia elegans Robert Cox, Jr. 1946-8-17 s.n. San Mateo Field redacted by CAS, contact the data manager for more information 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-BC137321  Piperia elegans Elizabeth McClintock 1965-8-1 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  UC78190  Plagiobothrys chorisianus K. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda Comment
  CAS-BOT-BC228137  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 1953 San Mateo The Santa Cruz Mountain Peninsula. On abandoned road above N fork of Peters Creek, about spring 640 Comment
  POM190562  Plagiobothrys chorisianus D. D. Keck 1932-4-18 1435 San Mateo Burlingame, on the shore of San Francisco Bay. 2 Comment
  RSA518799  Plagiobothrys chorisianus L. R. Heckard, Thomas 1972-4-16 2897 San Mateo Along Old Canada Road (private), ca 1.5 miles south of Pulgas Water Temple (SW of Upper Crystal Springs Reservior) 122 Comment
  JEPS67914  Plagiobothrys chorisianus var. chorisianus L. R. Heckard and J. H. Thomas 1972-4-16 2897 San Mateo along Old Canada road (private) ca 1 1/2 mi s Pulgas Water Temple ((sw of Upper Crystal Springs Reservoir)) 121 Comment
  CAS-BOT-BC228155  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Between King's Mountain and La Honda, below Hayman's Ranch Comment
  CAS-BOT-BC228171  Plagiobothrys chorisianus var. hickmanii Class Collection 1940-1-1 s.n. San Mateo Between Pescadero and Ano Nuevo Point Comment
  JROH1408  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC511480  Plagiobothrys nothofulvus Ira L. Wiggins 1933-4-17 6651 San Mateo 2 mi w Redwood City; Emeral Lake hills Comment
  UCD120893  Plagiobothrys nothofulvus R. E. Dengler 1960-4-12 20 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  CAS-BOT-BC389766  Plagiobothrys tenellus R. D. Hennessey 1964-4-26 s.n. San Mateo Area where Pilarcitos Creek empties into ocean Comment
  HSC16818  Plantago coronopus R. E. Jones 1966-4-4 35 San Mateo Ano Nuevo Beach 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
  JROH3119  Plantago erecta John Hunter Thomas 1981-5-25 20643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3126  Plantago erecta John Hunter Thomas 1992-4-29 25172 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU654  Plantago erecta A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  UC203055  Plantago erecta A. D. E. Elmer Apr 1903 4795 San Mateo San Bruno Hills Comment
  UCR101664  Plantago lanceolata George K. Helmkamp, E. A. Helmkamp 1998-5-16 3739 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  JROH5882  Plantago lanceolata J. C. Gaither Jr. 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; inside Sand Hill Road gate near old motorcycle racetrack Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  POM61259  Plantago maritima E. B. Copeland 1903-6-5 3331 San Mateo Montara Point. Comment
  UC1736686  Plantago subnuda Dean W. Taylor 1991-5-20 11790 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  CAS-BOT-BC92020  Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  CHSC24850  Platystemon californicus B. A. Rosene 1976-4-18 5 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  UC855242  Platystemon californicus Lewis S. Rose 1937-4-24 37230 San Mateo w Redwood City (Emerald Lake); Emerald Lake 106 Comment
  CAS-BOT-BC92019  Platystemon californicus George Oberlander 1950-4-2 597 San Mateo San Francisco Watershed Reserve. Grassland about Lower Crystal Spring Lake. Comment
  RSA445724  Platystemon californicus var. californicus L. S. Rose 1937-4-24 37230 San Mateo Emerald Lake, west of Redwood City 107 Comment
  POM204134  Platystemon californicus var. californicus L. S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  UC28852  Plectritis ciliosa subsp. ciliosa Ivar Tidestrom May 1894 San Mateo San Mateo County Comment
  JROH4244  Plectritis congesta subsp. brachystemon John Hunter Thomas 1979-5-10 19546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC458187  Pleuricospora fimbriolata W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: between Pescadero Creek and Butano, back of Iversons Comment
  JEPS67916  Pleuropogon californicus L. R. Heckard and J. H. Thomas 1972-4-16 2900 San Mateo 1 1/2 mi s of Pulgas Water Temple (sw of Upper Crystal Springs Reservoir, along Old Canada Road (private)) 121 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
  UCD92187  Poa August L. Hormay 1932-5-29 s.n. San Mateo San Bruno to San Francisco Bay Shore Highway. Comment
  CAS-BOT-BC255567  Poa annua George Oberlander 1949-4-30 112 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH5400  Poa annua John H. Thomas 1977-2-20 18466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC261644  Poa infirma Peter Rubtzoff 1988-5-3 9912 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC243123  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  JROH5676  Poa secunda subsp. secunda John Rawlings 2015-3-15 1459 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 160 Comment
  JROH5424  Poa secunda subsp. secunda Herbert Dengler 1962-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Searsville Rocks 100 ft from S. F. Cr. Comment
  CAS-BOT-BC244250  Poa unilateralis H. L. Mason 1921-5-28 s.n. San Mateo Pebble Peach, near Pescadero Comment
  CAS-BOT-BC244252  Poa unilateralis Dr. E. B. Copeland 1903-6-17 3306 San Mateo Montara Point 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
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  CAS-BOT-BC109246  Polygonum paronychia Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountains. Colma Canyon. Comment
  SD27835  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach so. of Pescadero Comment
  UC1187045  Polygonum paronychia V. F. Hesse 1956-11-15 2137 San Mateo coastal bluff between Pigeon Point and Pebble Beach 6 Comment
  RSA88326  Polygonum patulum J. T. Howell 1953-6-3 29057 San Mateo Bayshore Hwy, Redwood City. Comment
  CAS-BOT-BC76907  Polypodium californicum W. R. Dudley 1899-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula - Pescadero Creek, near Iverson's Comment
  CAS-BOT-BC76915  Polypodium californicum J. H. Thomas 1949-3-29 197 San Mateo King's Mountain. Comment
  JROH77  Polypodium californicum John H. Thomas 1967-4-28 12729 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCSB17938  Polypodium californicum Schulte, John 1963-4-14 San Mateo NE Jasper Ridge, 3 mi SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 152 Comment
  UC62435  Polypodium scouleri W. C. Blasdale 1893-6-23 San Mateo San Mateo Comment
  UCD164005  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC237343  Polypogon monspeliensis Ned Cahill 1974-6-21 339 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC237350  Polypogon monspeliensis Verne Grant; Herbert L. Mason 1946-8-28 13094 San Mateo On Highway 5, about 3 miles S of Daly City Road Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  JROH5445  Polypogon monspeliensis John H. Thomas 1974-10-29 17644 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  UC1100390  Polypogon monspeliensis Herbert L. Mason and Verne Grant 1946-8-28 13094 San Mateo pond on Highway 5 about 3 mi s Daly City Road Comment
  UC1132915  Polypogon monspeliensis G. E. Sindel 1935-5-25 306 San Mateo Mouth of Pescadero Creek; Santa Cruz Quad., mouth of Pescadero Creek Comment
  CAS-BOT-BC237358  Polypogon monspeliensis V. F. Hesse No date on label 3203 San Mateo Whitehouse Creek road, near coast 30 Comment
  CAS-BOT-BC237587  Polypogon viridis George Oberlander 1949-7-10 243 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  JROH4813  Polypogon viridis John Hunter Thomas 1979-5-22 19573 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA100973  Polypogon viridis G. Oberlander 1949-7-10 243 San Mateo Marsh, Upper Crystal Springs Lake, San Francisco. Watershed Reserve Comment
  CAS-BOT-BC72218  Polystichum dudleyi John H. Thomas 1961-5-23 9454 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC72221  Polystichum dudleyi W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain Comment
  JROH52  Polystichum dudleyi Ann Lambrecht 2005-10-26 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Trail 2 on creek bank 60 m beyond first drainage past intersection of Trails 1 & 5. Comment
  CAS-BOT-BC76603  Polystichum munitum Ira L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands Comment
  CAS-BOT-BC76609  Polystichum munitum D. E. Breedlove 1973-9-26 35557 San Mateo Pescadero Creek County Park 365 Comment
  POM23442  Polystichum munitum C. F. Baker 1902-1-15 321 San Mateo West side of King's Mountain Comment
  CAS-BOT-BC389729  Polystichum munitum J. Lovelle 1973-7-22 24 San Mateo Mt. Ellen 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
  JROH3357  Portulaca oleracea John H. Thomas 1974-6-27 17450 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low flow crossing below Searsville Dam Comment
  UCD100109  Portulaca oleracea Gertrud Aronstein 1930-7-16 s.n. San Mateo Atherton. Comment
  CAS-BOT-BC453835  Potamogeton nodosus L. R. Abrams; I. L. Wiggins 1939-6-3 435 San Mateo Ano Nuevo Point Comment
  POM193749  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Unspecified. Comment
  UC814176  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453997  Potamogeton pectinatus Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  SD39944  Potentilla anserina Edith A. Purer 1933-7-27 5365 San Mateo High stabilized sand dunes, but damp, Pigeon Point Comment
  UCR63022  Potentilla anserina Donald G. Nelson 1939-6-14 617 San Mateo East side of Skyline Blvd., a few miles south of Daly City. Large permanent pond 196 Comment
  CAS-BOT-BC141926  Potentilla anserina subsp. pacifica Anne Constant 1955-5-28 196 San Mateo Top of bluff at Pescadero Beach 7 Comment
  JEPS44182  Potentilla anserina subsp. pacifica Alice King 1908-7-25 San Mateo near San Francisco (Moss Beach); Moss Bearch Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  UCSB17159  Poterium sanguisorba Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  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
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  UC1124441  Prunella vulgaris var. lanceolata N. K. Carlson 1935-6-28 97 San Mateo 1 mi e Pigeon Pt.; Santa Cruz Quad. Comment
  UC12750  Prunus emarginata J. Burtt Davy 1895-4-20 1041 San Mateo San Mateo Creek Comment
  CAS-BOT-BC154500  Prunus ilicifolia J. H. Thomas 1954-5-28 4239 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC389746  Prunus ilicifolia M. Danielson 1966-10-1 s.n. San Mateo On old road above and south of Crystal Springs Rd. Comment
  UC1128422  Prunus ilicifolia A. Wright 1928-9-16 San Mateo San Andreas Lake 152 Comment
  JROH3746  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1978-7-2 19246 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  HSC5682  Pseudognaphalium beneolens L. S. Rose 1966-8-15 66082 San Mateo Emerald Lake, W of Redwood City 91 Comment
  CAS-BOT-BC356471  Pseudognaphalium beneolens Josephine D. Randall 1907-7-28 76 San Mateo Santa Cruz Peninsula. Black Mt. Road near Iverson's 335 Comment
  JROH772  Pseudognaphalium beneolens John H. Thomas 1964-11-29 10537 San Mateo Jasper Ridge Biological Preserve, Stanford University; W end of Searsville dam Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357122  Pseudognaphalium luteoalbum Fred Hemphill 1973-3-1 622 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 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-BC357128  Pseudognaphalium luteoalbum Javier Penalosa 1963-2-23 2659 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC413801  Pseudognaphalium luteoalbum Robert I. Gilbreath 1977-8-16 105 San Mateo Hillsborough. Cultivated garden area at 366 Alberta Way 160 Comment
  JROH782  Pseudognaphalium luteoalbum John Hunter Thomas 1980-11-27 20184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH784  Pseudognaphalium luteoalbum John Hunter Thomas 1986-5-6 24001 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bath house Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero 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-BC357508  Pseudognaphalium ramosissimum Janet Jones 1978-8-28 s.n. San Mateo Near Montara Comment
  JROH5642  Pseudognaphalium stramineum John Rawlings 2014-6-7 1251 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few meters east of the Caretaker's Residence 106 Comment
  SD39789  Pseudognaphalium stramineum Edith A. Purer 1933-7-27 5359 San Mateo Pigeon Point Comment
  CAS-BOT-BC361566  Pseudognaphalium stramineum Phillip Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. Cow Palace area Comment
  RSA249487  Pseudognaphalium stramineum John F. Emmel 1971-9-6 387 San Mateo NE facing slope 0.4 air mile SSW of Midway Village School on 1956 topo quad., above Guadalupe cyn. parkway, San Bruno Mts. 91 Comment
  SJSU7541  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mt 121 Comment
  CAS-BOT-BC85906  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mountain Comment
  CAS-BOT-BC85912  Pseudotsuga menziesii James McMurphy 1906-3-9 s.n. San Mateo King's Mountain Comment
  RSA384643  Pseudotsuga menziesii E. A. Purer 1932-7-18 s.n. San Mateo King s Mountain. Comment
  CAS-BOT-BC85904  Pseudotsuga menziesii unspecified 1893-12-3 s.n. San Mateo Fr. Lyon's Gate Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA149177  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo Franklin Point. Comment
  CAS-BOT-BC421314  Pterostegia drymarioides W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. By grade south slope Montara Mts. Comment
  UC635041  Pterostegia drymarioides Herbert L. Mason 1927-4-23 3683 San Mateo along rd. between La Honda and Pescadero Creek Comment
  JROH5770  Quercus X chasei Carol Zabel, Ann Lambrecht 2001-10-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; northeast side of Jasper Ridge along lower Trail 5 going down below switchback, first oak past valley oak with exposed roots, creek side of trail Comment
  JROH2537  Quercus X jolonensis Lucile Roush 1917-10-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM192780  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Goat Ranch Road near Alpine Road, Black Mountain, Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC61706  Quercus agrifolia Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo Point San Bruno. On bluff near shoreline, San Bruno Mountain Comment
  CAS-BOT-BC61710  Quercus agrifolia Ned Cahill 1974-5-13 258 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  UCD14593  Quercus agrifolia Edmond W. Holm 1993-10-20 s.n. San Mateo California, San Mateo Co.; Huddart Park, near Sequoia Picnic Area; Comment
  SEINET12031837  Quercus agrifolia F. G. Meyer 1984-1 20335 San Mateo Woodside, Filoli Gardens Comment
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JEPS121557  Quercus chrysolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 323 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  UCD45585  Quercus chrysolepis Roman Gankin; W. R. Hildreth 1966-5-17 s.n. San Mateo Elevation 1600 feet, ca. .4 mile northeast of Peak Mountain of greater Montara Mountain, San Mateo County, California. 487 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
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  CAS-BOT-BC94280  Quercus durata James McMurphy 1908-8-20 s.n. San Mateo near shore this side of Crystal Springs Comment
  CAS-BOT-BC94282  Quercus durata James McMurphy 1908-8-20 s.n. San Mateo this side of Crystal Springs Reservoir Comment
  JROH2483  Quercus durata var. durata John H. Thomas 1970-4-28 15608 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2488  Quercus durata var. durata John H. Thomas 1974-8-3 17502 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39513  Quercus durata var. durata L. S. Rose 1970-7-21 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC105386  Quercus kelloggii W. R. Dudley 1901-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula, near Los Trancos Creek Comment
  CAS-BOT-BC105400  Quercus kelloggii James McMurphy 1909-3-20 s.n. San Mateo Woodside Comment
  CAS-BOT-BC105402  Quercus kelloggii David D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  POM270203  Quercus kelloggii Lyman Benson 1930-5-3 2116 San Mateo La Honda Grade, above Woodside, Santa Cruz mt. range, San Francisco Bay watershed. 457 Comment
  UCD46742  Quercus kelloggii Edmond W. Holm 1993-11-26 s.n. San Mateo (Q. parvula var. shrevei (Muller) Nixon. California, San Mateo Co,; Huddart Park, near Miwok Picnic Area. Comment
  SEINET3523079 Image available Quercus kelloggii Unknown 1932-10-12 32670 San Mateo Hill slopes, Kings Mountain. Comment
  CAS-BOT-BC62890  Quercus lobata W. R. Dudley 1893-11-19 s.n. San Mateo By Alpine road up Black Mt. Comment
  CAS-BOT-BC134778  Quercus wislizeni John Thomas Howell 1964-10-8 40961 San Mateo Portola State Park Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 Comment
  CAS-BOT-BC134795  Quercus wislizeni Charles Piper Smith 1908-3-28 1371 San Mateo Woodside-Kings Moutain Road. Pacific slope Comment
  JROH5828  Quercus wislizeni var. frutescens John Rawlings 2016-12-29 1954 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 120 yards north of Road F opposite its intersection with Trail 17 to Goya Gate 178 Comment
  CAS-BOT-BC362551  Rafinesquia californica W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine Comment
  POM268414  Ranunculus californicus Lyman Benson 1931-3-15 s.n. San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  UC135552  Ranunculus californicus C. F. Baker 1902-4-12 504 San Mateo San Gregorio; hills along coast Comment
  UC277217  Ranunculus californicus H. M. Hall 1923-2-20 11844 a San Mateo Pigeon Point; 3.4 mi s of L.H., near the sea Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  POM268416  Ranunculus californicus Lyman Benson 1930-4-6 s.n. San Mateo San Lorenzo Mt: Crystal Springs Lake. 183 Comment
  POM268422  Ranunculus californicus Arthur L. Cohen 1935-4-21 619 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  RSA399413  Ranunculus californicus Paul C. Silva 1948-1-31 2627 San Mateo Old La Honda Grade, 1 mi. S of Skyline Blvd. 457 Comment
  RSA400645  Ranunculus californicus E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  SD80176  Ranunculus californicus R. S. Woglum 1935-5-25 1156 San Mateo San Francisco area, Skyline Drive Comment
  CAS-BOT-BC378529  Ranunculus californicus var. californicus Elizabeth McClintock; Virginia Ryder 1964-2-16 s.n. San Mateo San Bruno Mountain, Guadalupe Road Comment
  CAS-BOT-BC378543  Ranunculus californicus var. californicus J. H. Thomas 1954-4-25 3994 San Mateo near intersection of Stanford and Mayfield Avenues in open field which is occasionally plowed; Stanford University campus Comment
  CAS-BOT-BC378550  Ranunculus californicus var. californicus Paul F. Covel 1937-4-15 644 San Mateo Hgwy no. Half Moon Bay Comment
  UC575705  Ranunculus hebecarpus Lewis S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  CAS-BOT-BC83424  Ranunculus lobbii W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge. Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  JROH3499  Ranunculus muricatus John Hunter Thomas 1985-4-10 23513 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy areas, east of low flow crossing. Comment
  UC854390  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37341 San Mateo Brisbane 6 Comment
  UC13950  Ranunculus orthorhynchus var. bloomeri Alice Eastwood Feb. 1896 San Mateo Comment
  UCD97310  Ranunculus trilobus Phil Greer 2002-4-17 s.n. San Mateo Hwy 101, in Half Moon Bay. Comment
  CAS-BOT-BC74340  Raphanus sativus Fred Hemphill 1973-3-9 642 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  JROH1576  Raphanus sativus John H. Thomas 1969-6-4 15106 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA210922  Raphanus sativus John H. Thomas 1969-6-4 15106 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  OBI27163  Raphanus sativus Laura Wells 1970-2-1 8 San Mateo Half Moon Bay about 14 mi W of San Mateo Comment
  POM283043  Rhamnus californica Lyman Benson 1928-12-4 770 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 Comment
  UC1121743  Rhamnus californica A. E. Wieslander 1935-2-2 505 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  UC202778  Rhamnus californica subsp. californica A. D. E. Elmer Jul 1901 4772 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC55892  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  JROH5728  Rhamnus crocea John Rawlings 2015-3-3 1306 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 8 twenty-five yards south of Trail 7 intersection. 134 Comment
  LA207744  Rhamnus crocea Carl B. Wolf; 1928-3-16 1540 San Mateo Jasper Ridge, near Searsville Lake Comment
  POM282947  Rhamnus crocea Lyman Benson 1930-5-21 s.n. San Mateo Lake Searsville. 152 Comment
  UC592766  Rhamnus crocea unknown 1927-8-7 717 San Mateo back of Stanford University (at Schenkel's Camp); Los Trancos Creek Comment
  RSA7858  Rhamnus tomentella subsp. tomentella Carl B. Wolf 1928-2-11 1472 San Mateo 1/2 way up Kings Mt Comment
  POM132207  Rhododendron occidentale var. occidentale A. D. E. Elmer 1903-06 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  CAS-BOT-BC93003  Ribes californicum var. californicum A. D. E. Elmer 1903-3-1 4683 San Mateo Portola. Comment
  CAS-BOT-BC93009  Ribes californicum var. californicum J. I. McMurphy 1906-5-11 57 San Mateo Santa Cruz Mountain Peninsula. San Francisquito Creek Stanford University. Comment
  JROH2639  Ribes californicum var. californicum John H. Thomas 1964-4-7 10302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH2644  Ribes californicum var. californicum John Hunter Thomas 1981-2-14 20217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0003752  Ribes deductum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  SEINET13942455 Image available Ribes divaricatum Lewis S. Rose 1965-1 65008 San Mateo Searsville Lake, stream banks. Alt ca 400 ft 122 Comment
  CAS-BOT-BC173083  Ribes divaricatum var. pubiflorum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon, south ridge Comment
  CAS-BOT-BC173086  Ribes divaricatum var. pubiflorum W. R. Dudley 1893-1-1 s.n. San Mateo Near Searsville, Portola Valley Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  UC1736497  Ribes divaricatum var. pubiflorum Dean W. Taylor 1989-4-18 10219 San Mateo Montara Mountain; ridgetop between Ox Hill and Scarper Peak 472 Comment
  CAS-BOT-BC173467  Ribes malvaceum A. D. E. Elmer 1903-3-1 535 San Mateo Portola Comment
  CAS-BOT-BC173473  Ribes malvaceum A. D. E. Elmer 1903-3-1 4535 San Mateo Portola Comment
  RSA0021675  Ribes malvaceum A. D. E. Elmer 1903-03 4535 San Mateo Portola Comment
  CAS-BOT-BC212811  Ribes menziesii David D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mts. 200 Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212820  Ribes menziesii R. Bacigalupi 1946-7-6 2792 San Mateo Canyon along Edgemar Road, 1.5 miles above Edgemar Comment
  CAS-BOT-BC212822  Ribes menziesii W. R. Dudley 1894-7-7 s.n. San Mateo Road to La Honda, below first long turn beyond the crest Comment
  RSA0021751  Ribes menziesii var. leptosmum D. D. Keck 1933-2-22 1986 San Mateo Sand Hill Road, near Stanford University. 61 Comment
  RSA0021755  Ribes menziesii var. leptosmum D. D. Keck 1932-3-6 1397 San Mateo Near La Honda, Santa Cruz Mountains. 200 Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  JROH6179  Ribes menziesii var. menziesii John Rawlings, Rebecca Reynolds 2017-11-14 2305 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2, 400 m east of its intersection with Trail 5 99 Comment
  JROH2689  Ribes sanguineum var. glutinosum John Hunter Thomas 1992-4-7 25131 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  SEINET12220350  Ribes sanguineum var. glutinosum W. R. Dudley 1904-1 62 San Mateo Santa Cruz Peninsula, Carte de Madera Creek, Santa Cruz Mts Comment
  CAS-BOT-BC207159  Ricinus communis John H. Thomas 1967-5-25 11637 San Mateo Menlo Park, near Southern Pacific train station. Comment
  JEPS25747  Romanzoffia californica L. R. Heckard with R. Bacigalupi 1961-5-14 1232 San Mateo ca. 2 mi. s. Pilarcitos Reservoir (near Stone Dam Reservoir, along Pilarcitos Creek); Pilarcitos Creek 182 Comment
  SJSU15226  Rorippa curvisiliqua Toni Corelli 2012-7-12 802 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 24 Comment
  CAS-BOT-BC74650  Rorippa curvisiliqua W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Edge of Earthquake Pond east of Jersey Pond west of Baden. Comment
  CAS-BOT-BC74652  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  JROH1583  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19712 San Mateo Jasper Ridge Biological Preserve, Stanford University; on dam Comment
  CAS-BOT-BC146689  Rosa gymnocarpa James McMurphy 1902-5-1 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC146703  Rosa gymnocarpa Ira L. Wiggins 1928-4-14 2922 San Mateo Alpine Creek Road Comment
  JROH3764  Rosa gymnocarpa var. gymnocarpa Toni Corelli 2007-10-31 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, along north side of trail 80 Comment
  JROH3765  Rosa laevigata Carol Zabel 2004-5-19 51 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 30 feet north of main gate on Sand Hill Road. Comment
  RSA0005651  Rosa piscatoria A. D. E. Elmer 1903-05 4923 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CDA33988  Rubus parviflorus D. G. Kelch 2011-3-13 11 .057 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3772  Rubus parviflorus John H. Thomas 1973-5-5 16763 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB11517  Rubus parviflorus Olson, Jim 1962-4-15 San Mateo Junction of Portola State Park Road and Camp Pomponio Road; 20 miles south of La Honda; 609 Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156764  Rubus spectabilis W. R. Dudley 1894-3-26 s.n. San Mateo Ravine of Spanishtown Creek Comment
  CAS-BOT-BC156768  Rubus spectabilis Walter Knight; Irja Knight 1964-4-25 1242 San Mateo Half way up Colma Canyon adjacent to creek. San Bruno Mountain Comment
  HSC19689  Rubus spectabilis P. A. Murphy 1965-4-15 12 San Mateo 3 mi. from Half Moon Bay on Higgin's Canyon Rd. 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-BC157086  Rubus ursinus Walter Knight; Irja Knight 1965-3-15 s.n. San Mateo Colma Canyon. San Bruno Mt. Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  CAS-BOT-BC157104  Rubus ursinus A. D. E. Elmer 1903-6-1 4664 San Mateo Crystal Springs Lake, southern end Comment
  CAS-BOT-BC157108  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC389668  Rubus ursinus M. Wicksten 1968-6-20 s.n. San Mateo Memorial Park Comment
  CHSC39824  Rubus ursinus Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  SBBG50777  Rubus ursinus R. E. Dengler 1960-4-14 34 San Mateo Jasper Ridge, Stanford Biological Reserve 121 Comment
  POM140136  Rubus vitifolius Edward L. Greene 1902-1-15 246 San Mateo W side King's Mtn. Comment
  CHSC1352  Rumex acetosella D. Stover 1929-5-10 San Mateo Half Moon Bay. Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  CAS-BOT-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  CAS-BOT-BC422089  Rumex acetosella Elizabeth McClintock; Philip Wheeler 1967-5-15 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house. Comment
  UCD101053  Rumex acetosella Robert A. Norris 1984-5-9 4728 San Mateo Olivet Memorial Park Throughway, Colma. Comment
  CAS-BOT-BC433545  Rumex fueginus W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  UC1191273  Rumex maritimus Herbert L. Mason and Verne Grant 1946-8-28 13090 San Mateo pond between Santa Cruz and Daly City (on Highway 5) Comment
  UC127315  Rumex maritimus Miss Harriet A. Walker 1908-8-22 1539 San Mateo Granada Comment
  SEINET4182631  Rumex maritimus var. persicarioides K. Thorne, J. chandler 1986-7-25 4948 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  UC202769  Rumex pulcher A. D. E. Elmer Jul 1903 4778 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC433819  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  JROH3313  Rumex salicifolius John Hunter Thomas 1977-6-16 18787 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176869  Rumex salicifolius var. crassus John H. Thomas 1964-6-19 10419 San Mateo Ano Nuevo Island, 1/2 mile off shore and 20 miles NW of Santa Cruz Comment
  UCD164248  Rumex transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  SEINET3837363  Ruppia maritima Unknown 1946-4-30 s.n. San Mateo .5 mile north of Redwood City 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
  CDA38781  Rytidosperma caespitosum Eric Wrubel 2012-6-19 NPS 41 San Mateo Golden Gate National Recreation Area; Sweeney Ridge, Baquiano Trail. 0 Comment
  JROH1714  Sagina apetala John H. Thomas 1966-4-6 11548 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5580  Sagina apetala John Rawlings 2013-7-2 1200 San Mateo Jasper Ridge Biological Preserve, Stanford University; just downstream from Low Flow Crossing, San Francisquito Cr. 80 Comment
  JROH1715  Sagina apetala Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1720  Sagina apetala John Hunter Thomas 1978-4-25 19145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1076484  Sagina decumbens subsp. occidentalis Herbert L. Mason 1927-4-23 3685 San Mateo outcrop on rd. from La Honda to Pescadero Creek Comment
  UCD99141  Salicornia rubra Malcolm A. Nobs; S. Galen Smith 1948-12-11 713 San Mateo Highway 101 near shore of bay, at Whipple Avenue intersection, Redwood City. Comment
  POM216545  Salicornia virginica D. D. Keck 1931-9-27 1266 San Mateo Dumbarton Bridge. Comment
  LA208828  Salix lasiandra David D. Keck; 1932-3-6 1392 San Mateo Searsville Lake Comment
  UC492362  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  CAS-BOT-BC125369  Salix lasiandra var. lasiandra W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC125370  Salix lasiandra var. lasiandra W. R. Dudley 1898-4-24 s.n. San Mateo El Corte de Madera Creek Comment
  CAS-BOT-BC125378  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC125374  Salix lasiandra var. lasiandra W. R. Dudley 1903-4-14 s.n. San Mateo Near Old Hotel, Searsville Comment
  CAS-BOT-BC107132  Salix lasiolepis Ira L. Wiggins 1976-4-20 22178 San Mateo Along N bank of San Francisquito Creek, near Pope Street Bridge, Menlo Park Comment
  CAS-BOT-BC107134  Salix lasiolepis David D. Keck 1932-1-24 1356 San Mateo Portola 150 Comment
  JROH3864  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  OBI9820  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  POM216549  Salix lasiolepis D. D. Keck 1932-1-24 1356 San Mateo Portola. 150 Comment
  UCD111654  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake. 121 Comment
  CAS-BOT-BC108261  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC126495  Salix sitchensis Phillip Wheeler 1966-10-16 s.n. San Mateo Crocker Industrial Park Comment
  CAS-BOT-BC126506  Salix sitchensis D. E. Breedlove 1974-5-13 36212 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  POM167485  Salix sitchensis A. D. E. Elmer 1903-03 4874 San Mateo Portola. Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  CDA20077  Salsola soda W. Shek 2002-10-29 PDR 065875 San Mateo San Francisco Bay Area; Rangeland at 3517 Haven Ave, Menlo Park. 2 Comment
  RSA201244  Salsola soda W. Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  RSA681665  Salvia clevelandii Annuschka Deb 1989-7-19 313 San Mateo Yerba Buena Herbarium Stock Comment
  RSA681668  Salvia sonomensis Annuschka Deb 1989-4-14 108 San Mateo YBN Demonstration Garden, Woodside, CA Comment
  RSA681669  Salvia sonomensis Annuschka Deb 1989-4-19 114 San Mateo YBN Berm near parking lot Comment
  UC306578  Salvia spathacea A. D. E. Elmer May 1903 4440 San Mateo Colma Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  JEPS49086  Sambucus mexicana Lewis S. Rose 1966-8-15 66084 San Mateo Pulgas Water Temple; stream banks 91 Comment
  CDA3947  Sanguisorba minor subsp. muricata T. C. Fuller 1974-5-21 19992 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  UCSC005903  Sanicula Randall Morgan 1983-2-15 s.n. San Mateo From large extended population in small ravine between El Corte Madera Creek and Bogess Creek (N of San Gregorio Rd.) Comment
  UC579535  Sanicula arctopoides H. S. Yates 1935-2-3 5102 San Mateo 0.5 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC223318  Sanicula bipinnatifida Ned Cahill 1974-4-30 219 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC223321  Sanicula bipinnatifida George Oberlander 1949-4-17 99 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA40105  Sanicula bipinnatifida L. S. Rose 1948-3-31 48033 San Mateo Skyline Blvd. above San Andreas Lake. 152 Comment
  UCR121545  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4963 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  SEINET5766644 Image available Sanicula laciniata Robert A. Norris 1981-1 4122 San Mateo Open bank near small paved road: Vista Point, near Interstate Hwy. 280, ca. 1.5 SE of Jct. with State Hwy. 92, San Mateo Co., Calif. Comment
  RSA128598  Satureja douglasii Peter H. Raven 1950-4-30 1988 San Mateo Montara Mountains 122 Comment
  RSA445295  Satureja douglasii H. F. Copeland 1929-7-4 1231 San Mateo La Honda Grade. Comment
  JROH357  Scandix pecten-veneris John Hunter Thomas 1981-5-25 20627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH362  Scandix pecten-veneris John Hunter Thomas 1986-5-1 23990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH359  Scandix pecten-veneris John Hunter Thomas 1983-4-20 21537 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA140840  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  SJSU1654  Schoenoplectus acutus var. occidentalis L. S. Chan 1955-5-29 112 San Mateo freshwater pond near San Gregorio Beach Comment
  UC1190033  Scirpus cernuus H. L. Mason 1921-6-2 San Mateo Pebble Beach near Pescadero; Pebble Beach near Pescadero Comment
  JEPS85228  Scirpus koilolepis Roy E. Buck and James A. West 1985-4-29 526 San Mateo 1.9 air km. e.-n.e. Franklin Point (ca. 0.8 air km. n.e. of Whitehouse Canyon Rd.-CA Hwy. 1 jct, just n. of Whitehouse Canyon Rd., shallow watercourse at head of minor gulch); Cascade Ranch 60 Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  POM202952  Scoliopus bigelovii Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UC494236  Scoliopus bigelovii Anna E. Ehlers 278 San Mateo San Andreas Comment
  CAS-BOT-BC519007  Scoliopus bigelovii W. R. Dudley 1898-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519015  Scoliopus bigelovii A. D. E. Elmer 1903-3-1 4559 San Mateo King's Mountain Comment
  JROH5459  Scribneria bolanderi John H. Thomas 1980-5-1 19912 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road D Comment
  RSA152269  Scrophularia californica John H. Thomas 1961-5-7 9301 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM128330  Scrophularia californica R. L. Pendleton 1907-4-20 602 San Mateo Lake Merced. 30 Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UCD124850  Scrophularia californica R. S. Woglum 1935-5-25 1167 San Mateo Southeast San Mateo County: San Francisco area, Skyline Drive to Big Basin. Comment
  JROH2884  Scutellaria tuberosa John H. Thomas 1961-4-28 9175 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  SD38739  Scutellaria tuberosa Janet Turner 1933-4-19 3711 San Mateo Emerald Lake Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  UC884214  Scutellaria tuberosa Lewis S. Rose 1933-5-21 33179 San Mateo Belmont 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
  CAS-BOT-BC59076  Sedum spathulifolium J. H. Thomas 1974-5-9 17333 San Mateo San Pedro Valley, Northern Part of county, inland from Pacifica. 152 Comment
  JEPS27357  Senecio aronicoides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7617 a San Mateo just e KRON television tower (on lateral ridge below and se of end of paved ridge-top, on Guadalupe Valley side of summit of San Bruno Mountain); San Bruno Mountain 304 Comment
  RSA0012754  Senecio aronicoides John H. Thomas 1961-5-7 9308 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC363387  Senecio aronicoides Walter Knight; Irja Knight 1965-3-21 966 San Mateo San Bruno Mountain. About 1/4 mi. e. of Brisbane power lines near road on ridge Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  RSA0013329  Senecio aronicoides P. H. Raven 1950-4-6 s.n. San Mateo Colma Canyon, San Bruno Mts. Comment
  RSA195550  Senecio mikanioides John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  JROH1223  Senecio vulgaris John H. Thomas 1967-4-20 12706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1228  Senecio vulgaris John Hunter Thomas 1982-11-6 21197 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC80296  Sequoia sempervirens W. R. Dudley 1895-10-19 s.n. San Mateo By Summit Spr. Road, King's Mt. Comment
  CAS-BOT-BC85780  Sequoia sempervirens W. R. Dudley 1897-1-1 s.n. San Mateo Santa Cruz Mountain Peninsula, Butano Creek Comment
  RSA157753  Sequoia sempervirens I. L. Wiggins 1925-04 1659 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  SBBG52369  Sequoia sempervirens F. C. Boutin 1968-3-25 1839 San Mateo Palo Alto, from the "Palo Alto" near the train bridge over San Francisquito Crk Comment
  UC766822  Sequoia sempervirens R. F. Hoover 1941-2-12 4756 San Mateo above La Honda; La Honda Creek Comment
  UC813084  Sequoia sempervirens E. W. Rust 1908-3-28 154 San Mateo vicinity of Stanford University (King's Mountain Road, Redwood formation) 609 Comment
Read comments
Sep 22 2011
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  SEINET10612340  Sequoia sempervirens Charles F. Baker 1902-1-15 Baker 319 San Mateo West side King's Mountain. The redwood of the Coast Range. Plants of the Pacific Coast. Spermaphytes and Ferns. Distributed by C.F. Baker. Comment
  SEINET10612343  Sequoia sempervirens Paulson 1914-10-21 PAULSON s.n. 1914 San Mateo Kings Mountain near woodside. Herbarium of Leland Stanford Jr. University. Plants of the Santa Cruz Mountain Penninsula. Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  SEINET8057876 Image available Sequoia sempervirens M. E. Springer 1946-1 735 San Mateo Skyline Blvd. near La Honda Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  POM61910  Sidalcea malviflora subsp. laciniata A. D. E. Elmer 1903-05 4687 San Mateo San Bruno Hills. Comment
  UC676738  Sidalcea malviflora subsp. laciniata Reed C. Rollins 1941-3-22 2949 San Mateo 1 mi n Belmont; n of Belmont Comment
  UC871437  Sidalcea malviflora subsp. laciniata Alice Eastwood 1912-6-10 329 San Mateo Crystal Springs Comment
  UC1084384  Sidalcea malviflora subsp. malviflora G. Thomas Robbins 1937-4-11 90 San Mateo along road to Woodside (above San Mateo); , rd to Woodside Comment
  UC1537663  Sidalcea malviflora subsp. malviflora Gordon H. True Jr. 1936-6-7 492 San Mateo top of ocean bluff 2 mi s Pescadero; s of Pescadero 15 Comment
  CHSC39826  Sidalcea malviflora subsp. purpurea Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
Read comments
Aug 5 2010
  UC311135  Silene californica A. D. E. Elmer June, 1903 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate 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
  CAS-BOT-BC389199  Silene laciniata subsp. californica Josephine D. Randall 1907-7-24 30 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC384626  Silene laciniata subsp. californica L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC389898  Silene scouleri subsp. scouleri Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC389894  Silene scouleri subsp. scouleri C. F. Leitholt 1894-7-29 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Comment
  JROH1232  Silybum marianum John H. Thomas 1969-6-4 15116 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  JEPS127795  Sisyrinchium bellum Adam C. Schneider with C. Matt Guilliams 2013-4-7 66 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  JROH4440  Sisyrinchium bellum John H. Thomas 1964-4-19 10322 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  UCD138851  Sisyrinchium bellum R. S. Woglum 1935-5-24 1154 San Mateo San Francisco area, Skyline Drive south to Big Basin. Comment
  SEINET3561666 Image available Sitanion jubatum Lewis S. Rose 1932-1 32226 San Mateo Redwood City. Comment
  UC1084412  Smilacina racemosa G. Thomas Robbins 1937-4-11 110 San Mateo hillside above Redwood City Comment
  UCR51647  Smilacina racemosa 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
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  IRVC9074  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 B San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  IRVC9075  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 San Mateo 1 mile East of Skyline Hwy on La Honda Rd. 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
  UC73600  Solanum americanum Harley P. Chandler 1901-3-15 814 San Mateo w of Colma Comment
  JEPS12105  Solanum douglasii W. I. Follett 1934-2-18 10 San Mateo 2.6 mi n of Pigeon Point (beside the main highway) Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC157040  Solanum umbelliferum Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC58477  Solanum umbelliferum N. Cahill 1975-1-18 395 San Mateo Near the intersection of Canada and Edgewood Rds, about 3 mi westward from Redwood City. Comment
  JROH4187  Solanum umbelliferum John H. Thomas 1967-5-12 12887 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3162583  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake 183 Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  NY820584  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo San Bruno Mts. 244 Comment
  SEINET5571956  Solanum umbelliferum H. S. Gentry 1931-1 19 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  RSA507799  Solidago canadensis J. C. Semple, S. Heard 1986-8-23 8591 San Mateo Ca-1 ca. one km south of Pescadero State Beach. Comment
  CAS-BOT-BC353471  Solidago elongata Peter Rubtzoff 1976-10-5 8909 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Western part of the area, on slope near fence, San Bruno Mountains. Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  HSC24021  Solidago velutina subsp. californica Mary Katherine Wicksten 1971-8-20 207 San Mateo Huddart Park; area by King's Mtn. Rd., above Miwok Area Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  CAS-BOT-BC365925  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  JROH1252  Soliva sessilis John Hunter Thomas 1989-5-9 24709 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
  JROH1248  Soliva sessilis John Hunter Thomas 1984-4-12 23292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  CAS-BOT-BC374497  Sonchus asper Daniel Cohen 1953-5-9 75 San Mateo Top of sea cliff at Pescadero Comment
  CAS-BOT-BC374707  Sonchus oleraceus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Horseshoe Ridge Comment
  JROH1261  Sonchus oleraceus John H. Thomas 1970-7-5 15656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235287  Sorghum bicolor J. H. Thomas 1959-11-19 8513 San Mateo Near Bayshore and University Avenue. East Palo Alto Comment
  RSA181336  Sorghum bicolor subsp. drummondii John H. Thomas 1965-9-8 11444 San Mateo Near intersection of Bayshore & University Ave., East Palo Alto Comment
  RSA17933  Sparganium erectum subsp. stoloniferum Carl B. Wolf, Le Roy Abrams 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  CAS-BOT-BC236627  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  SACT002295  Spartina foliosa Malcolm Nobs, S. Smith 1949-8-27 San Mateo Salt marches east of Redwood City. Comment
  RSA15628  Spergula arvensis C. B. Wolf 1928-2-16 1476 San Mateo Near Alpine Road. Comment
  JEPS51204  Spergula arvensis subsp. arvensis W. L. Jepson 1923-10-18 10257 San Mateo hills w. Colma (near ocean) Comment
  CAS-BOT-BC390209  Spergularia bocconi Alice Eastwood 1921-7-17 s.n. San Mateo Grenada Comment
  RSA18465  Spergularia macrotheca C. B. Wolf 1927-6-29 543 San Mateo South of Pebble Beach near Pescadero Comment
  RSA0098757  Spergularia macrotheca E. B. Copeland 1903-6-5 3317 San Mateo Montara Point. Comment
  CAS-BOT-BC390465  Spergularia macrotheca var. macrotheca Ira L. Wiggins 1938-7-9 8932 San Mateo Cliffs near Pigeon Point light house Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  POM224475  Stachys ajugoides L. S. Rose 1936-5-23 s.n. San Mateo E. of Crystal Springs Lake. 152 Comment
  HSC23942  Stachys bullata Mary Katherine Wicksten 1971-6-15 50 San Mateo Huddart Park near horse ring Comment
  JROH2897  Stachys bullata John H. Thomas 1967-5-31 12932 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC25935  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 1141 San Mateo Pilarcitos Lake and Canyon Comment
  UCLA71396  Stachys bullata Alice Eastwood 1933-5-31 18840 San Mateo on road near Pescadero Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence Comment
  POM284551  Stachys bullata Lyman Benson 1930-5-26 2136 San Mateo Stanford University. Lake Searsville. 152 Comment
  RSA116738  Stachys bullata W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  RSA107098  Stachys chamissonis L. S. Rose 1956-7-2 56118 San Mateo Emerald Lake, hills of Redwood City. 183 Comment
  SEINET13948132 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  JEPS121450  Stachys rigida subsp. quercetorum Adam C. Schneider 2013-5-17 125 San Mateo Crystal Springs Reservoir Comment
  UCR279847  Stachys rigida subsp. quercetorum Peter Rubtzoff 1977-6-21 9063 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA785893  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Northwest of Fog Forest. Comment
  JROH5890  Stachys rigida var. quercetorum Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1778  Stellaria media John H. Thomas 1967-3-13 12411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC394065  Stellaria media Robert Martineau 1974-3-27 11 San Mateo Foothills of the eastern side of the Santa Cruz Mountains. Five miles south of center of Palo Alto; Foothill Park, Palo Alto 548 Comment
  CAS-BOT-BC398981  Stellaria nitens George Oberlander 1950-3-11 446 San Mateo Top of Sawyer Ridge Comment
  JROH5391  Stipa miliacea var. miliacea Toni Corelli 2004-7-14 280 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, In causeway, on south side of Leonard's bridge. 106 Comment
  JROH5329  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. Comment
  JROH5335  Stipa pulchra John Hunter Thomas 1978-5-16 19216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5748  Stipa pulchra M. Ray 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Whiskey Hill Gate Comment
  UCD138364  Stuckenia pectinata Malcolm A. Nobs; S. Galen Smith 1949-8-25 1552 San Mateo Sharp Park. Comment
  CAS-BOT-BC423014  Stylomecon heterophylla Walter Knight; Irja Knight 1965-4-25 1072 San Mateo San Bruno Mountain. Owl's Canyon Comment
  CAS-BOT-BC423012  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown Comment
  CAS-BOT-BC271603  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge, San Bruno Mountain Comment
  SJSU110  Symphoricarpos albus var. laevigatus C. D. Duncan 1929-5-30 San Mateo Jasper Ridge above Searsville L Comment
  CAS-BOT-BC237066  Symphoricarpos mollis Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon, San Bruno Mountain Comment
  POM46711  Symphoricarpos mollis C. F. Baker 1901-9-5 238 San Mateo West Side Kings Mt. Comment
  SEINET5579326  Symphoricarpos mollis H. S. Gentry 1931-1 78 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  HSC5051  Symphyotrichum chilense L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  CAS-BOT-BC99096  Symphyotrichum chilense W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) Comment
  SEINET5540436  Symphyotrichum chilense H. S. Gentry 1931-1 75 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC57661  Symphyotrichum subspicatum unknown 1874-9-19 San Mateo Belmont Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  SJSU15440  Tanacetum parthenium Toni Corelli 2011-8-31 717 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  JROH5940  Taraxacum officinale John Rawlings 1917-2-22 1958 San Mateo Jasper Ridge Biological Preserve, Stanford University; in and along Trail 20 85 Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCSB18577  Taraxacum officinale Hutchinson, Sandra 1964-3-22 San Mateo Backyard, 908 Patricia Ave., San Mateo Comment
  SD39527  Taraxia ovata Janet Tuaner 1933-4-18 2126 San Mateo Emerald Lake Comment
  OBI48850  Tauschia kelloggii Lewis S. Rose 1939-5-5 39092 San Mateo San Mateo Cyn 46 Comment
  CAS-BOT-BC438267  Tetragonia tetragonoides Walter Knight; Irja Knight 1965-4-24 1081 San Mateo San Bruno Mountain. Near dumps at west end of mt. Comment
  CAS-BOT-BC66660  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66662  Thysanocarpus curvipes John H. Thomas 1969-4-12 14878 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66677  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 3 San Mateo On Coal Mine Ridge. Comment
  JROH1596  Thysanocarpus curvipes John Hunter Thomas 1982-4-4 20819 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1588  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1978-4-8 19059 D San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH383  Torilis nodosa John Hunter Thomas 1980-5-13 19966 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH385  Torilis nodosa John Hunter Thomas 1981-4-30 20521 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH388  Torilis nodosa John Hunter Thomas 1981-5-25 20622 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC81497  Torreya californica William R. Dudley 1894-4-24 s.n. San Mateo near La Honda, Santa Cruz Mts. Comment
  UC754285  Torreya californica Ira L. Wiggins 1945-5-5 11160 San Mateo about 1 mi above La Honda (along La Honda Creek); La Honda Creek 152 Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10559  Toxicoscordion fremontii W. J. Cervenka 1962-2-2 San Mateo S end of Portofino Dr, San Carlos Comment
  CAS-BOT-BC377137  Tragopogon porrifolius Phillip Wheeler 1965-5-28 s.n. San Mateo San Bruno Mountain. Sierra Point Area Comment
  RSA134113  Tragopogon porrifolius John H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore Hwy and Main St. Redwood City. Comment
  JROH3394  Trientalis latifolia John Hunter Thomas 1978-4-28 19161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116747  Trientalis latifolia Josephine Randall 1907-4-27 s.n. San Mateo KingsM Mt. Comment
  JROH2227  Trifolium albopurpureum John Hunter Thomas 1980-4-10 19868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA634967  Trifolium albopurpureum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8202 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JROH2241  Trifolium barbigerum John H. Thomas 1974-4-25 17202 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  UCD147019  Trifolium barbigerum Robert E. Preston 2011-6-16 2864 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.7 mi NW of Waterman Gap. 298 Comment
  POM88143  Trifolium bifidum L. R. Abrams 1902-5-20 2470 San Mateo Kings Mountain Comment
  UC631333  Trifolium bifidum var. decipiens A. A. Heller 1907-5-23 8559 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC165566  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 1020 San Mateo Pilarcitos Comment
  SJSU7635  Trifolium dubium D. D. Kohler 1963-4-11 San Mateo by Skyline Blvd, 3 mi N of San Bruno Comment
  SJSU7974  Trifolium fucatum S. H. Anderson 1962-4-15 San Mateo Burlingame Hills Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  POM223326  Trifolium fucatum var. fucatum L. S. Rose 1935-5-4 35152 San Mateo Burlingame. Comment
  UCSC003369  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 3730 San Mateo on bluff at San Gregorio State Beach, San Mateo County Comment
  CAS-BOT-BC5350  Trifolium macraei Adolph Daniel Edward Elmer 1903-5-1 4812 San Mateo San Pedro Comment
  UCSC006205  Trifolium macraei Randall Morgan 1996-5-18 2452 San Mateo Pacifica, Young plants transplanted from colony on Montara Mtn. Comment
  UC575704  Trifolium microcephalum Lewis S. Rose 1935-5-1 35139 San Mateo Belmont Comment
  UC1130082  Trifolium microdon H. S. Yates 1935-5-8 5205 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JROH5592  Trifolium oliganthum John Rawlings 2013-4-19 1165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 in chaparral. 144 Comment
  UCD109275  Trifolium oliganthum R. Tofsrud 1952-1 2 San Mateo Near Foster. Comment
  JROH2367  Trifolium subterraneum John Hunter Thomas 1990-4-7 24802 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSC006359  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  UC165589  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1027 San Mateo Pilarcitos Comment
  RSA349594  Trifolium variegatum var. melananthum L. S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  RSA95537  Trifolium variegatum var. melananthum L. S. Rose 1953-4-5 53011 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  JROH2401  Trifolium willdenovii John H. Thomas 1971-4-24 15777 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU1077  Trifolium willdenovii C. W. Sharsmith 1951-4-7 5828 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  UC80455  Trifolium wormskioldii Katharine Brandegee June 1905 San Mateo Moss Beach Comment
  UCSC007785  Trifolium wormskioldii Becky Hendricks 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4731  Trillium chloropetalum John H. Thomas 1979-4-8 19444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC101805  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  RSA15264  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo Near Pescadero, 1/2 mile inland. Comment
  CAS-BOT-BC521202  Trillium chloropetalum var. giganteum W. R. Dudley 1901-3-16 s.n. San Mateo Santa Cruz Peninsula: Los Trancos Creek Comment
  CAS-BOT-BC521204  Trillium chloropetalum var. giganteum Ira L. Wiggins 1931-2-21 5092 San Mateo Pescadero Beach Comment
  SEINET12046255  Trillium chloropetalum var. giganteum C. F. Leithold 1894-1 s.n. San Mateo Santa Cruz Peninsula, Woodside Comment
  CAS-BOT-BC133429  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC133431  Trillium ovatum John Hunter Thomas 1954-4-3 3822 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC133443  Trillium ovatum D. T. Fullaway 1908-4-1 s.n. San Mateo King's Mountain Comment
  UC202804  Trillium ovatum A. D. E. Elmer April, 1903 4752 San Mateo Portola Comment
  UCD139910  Trillium ovatum Janet Jacob 1951-4-1 55 San Mateo 7 miles east of Pescadero. Comment
  SD39140  Trillium sessile Edith A. Purer 1933-4-18 3619 San Mateo No further locality information given on label on specimen sheet. Comment
  JEPS100825  Triphysaria eriantha subsp. rosea Dean W. Taylor 2000-6-12 17463 San Mateo Highway 1 at junction Pescadero Road, Pescadero State beach 6 Comment
  OBI9375  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo San Bruno Mts, N end 122 Comment
  UC27281  Triphysaria eriantha subsp. rosea Ivar Tidestrom May, 1894 San Mateo Comment
  CAS-BOT-BC238575  Triphysaria floribunda R. S. Ferris; I. L. Wiggins 1932-4-7 8038 A San Mateo Hills above Colma Comment
  JROH4137  Triphysaria pusilla John H. Thomas 1968-3-17 14187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7076094  Triphysaria versicolor subsp. faucibarbata 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
  UCD123415  Triphysaria versicolor subsp. faucibarbata H. A. Borthwick 1925-6-15 1926 San Mateo Santa Cruz Road, Pescadero. Comment
  JROH4737  Triteleia hyacinthina John H. Thomas 1967-6-1 12961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC523097  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-14 829 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC389750  Triteleia ixioides subsp. ixioides M. Danielson 1965-5-15 s.n. San Mateo Westward extension of Edgewood Road - Redwood City Comment
  JROH4751  Triteleia laxa John H. Thomas 1976-5-26 18157 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1133960  Triteleia laxa N. Carlson 1935-6-20 71 San Mateo between Slate and Oil Creek Santa Cruz Quad. 60 Comment
  UC1133973  Triteleia laxa W. W. Akey 1935-5-25 26 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  CAS-BOT-BC526789  Triteleia laxa D. D. Davis 1903-5-1 2 San Mateo near [?]avery place Comment
  JROH1626  Tropidocarpum gracile John H. Thomas 1977-4-18 18532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC74059  Turritis glabra Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountain. Near Ranger Station (Nike Base). Comment
  UC1241808  Typha angustifolia Malcolm A. Nobs and S. Galen Smith 1949-8-25 1556 San Mateo marshes at Sharp Park; marshes at Sharp Park Comment
  POM204316  Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo Marsh near Pescadero Beach. Comment
  POM282155  Typha angustifolia Lyman Benson 1931-5-16 2802 San Mateo San Mateo. 91 Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  POM282152  Typha latifolia Lyman Benson 1931-5-29 2809 San Mateo Santa Cruz Mt. Range, Lake Searsville, upper end of lake. 244 Comment
  CAS-BOT-BC213097  Ulex europaeus J. H. Thomas 1960-11-11 8924 San Mateo Along Skyline Drive about 0.2 mi. N. of Pulgas water temple. 91 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
  UCR101543  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo San Francisco Bay Area, South San Francisco, south side of Hickey Blvd. between Junipero Serra Blvd. and the 280 Fwy, east of Mandarin Dr. and west of Longford Dr., at edge of Daly City, SW of Cypress Lawn Cemetery Comment
  CAS-BOT-BC91226  Umbellularia californica Elizabeth McClintock 1969-3-9 s.n. San Mateo San Bruno Mountains. In Gladys Canyon, south of Brisbane. Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo Comment
  JROH1290  Uropappus lindleyi John H. Thomas 1963-5-12 10084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517991  Uropappus lindleyi Lewis S. Rose 1933-4-30 33127 San Mateo Redwood City Comment
  CAS-BOT-BC403968  Urtica dioica subsp. gracilis L. R. Abrams 1909-8-1 4246 San Mateo Santa Cruz Peninsula. Between La Honda and Pescadero Comment
  JROH4239  Urtica dioica subsp. holosericea John Hunter Thomas 1989-6-6 24766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC404027  Urtica dioica subsp. holosericea Walter Knight; Irja Knight 1964-9-2 725 San Mateo San Bruno Mountain. In Buckeye Canyon Comment
  SJSU6082  Vaccinium cespitosum S. H. Casey 1969-5-18 263 San Mateo Kamtchatka Point, San Bruno Mt Comment
  CAS-BOT-BC199351  Vaccinium ovatum Elmer I. Applegate 1895-3-9 307 San Mateo Summit Springs, Santa Cruz Mountains, road to La Honda Comment
  RSA174014  Vaccinium ovatum R. F. Thorne, Percy C. Everett, K. Thorne 1963-6-9 32222 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  RSA187267  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain. Comment
  RSA471170  Vaccinium ovatum L. H. Jones 1909-3-3 s.n. San Mateo Summit of King's Mountain, Stanford University. 732 Comment
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Sep 22 2011
  CAS-BOT-BC199375  Vaccinium ovatum W. R. Dudley 1902-5-17 s.n. San Mateo King's [Kings] Mountain Ranch, King's [Kings] Mountain Comment
  JEPS90930  Vaccinium ovatum var. ovatum Dean W. Taylor 1988-4-29 9587 San Mateo n slope of San Bruno Mountain 0.3 mi n(22d)w of summit, summit of small hill (local botaniceal placename of Kamchatka Point), Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  CAS-BOT-BC76139  Vancouveria planipetala Eric Walther 1919-6-9 s.n. San Mateo Woodside. Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4266  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1987-5-26 24318 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC157693  Veronica americana Peter Rubtzoff; Roman Gankin 1975-5-21 7971 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. 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
  UC1252125  Veronica filiformis Mrs. M. C. O'Neil Jr. 1964-5-7 San Mateo 3805 Fernwood Street, San Mateo San Mateo; 3805 Fernwood Street, San Mateo Comment
  POM278056  Vicia americana var. americana Lyman D. Benson 1935-5-5 6530 San Mateo Lake Searsville. 152 Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  POM248720  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  SD27838  Vicia cracca Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek, back of Stanford University, roadsides Comment
  JROH2438  Vicia sativa subsp. nigra John Hunter Thomas 1982-4-28 20867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2433  Vicia sativa subsp. nigra John H. Thomas 1965-4-10 10559 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Dam Comment
  JEPS34465  Vicia sativa subsp. sativa L. R. Heckard, and R. Bacigalupi 1963-7-2 1354 San Mateo nw slope Montara Peak (trail to Montara Peak (nw slope) above old county road) 304 Comment
  UCD121405  Vinca major C. M. Rivera 1969-5-24 17 San Mateo ca. 1 1/2 miles south of State Highway 35 intersection with Skyline Blvd., Belmont. 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
  CAS-BOT-BC264043  Viola adunca Catherine A. Toschi 1963-3-17 63 :70 San Mateo San Bruno Mountain. NE slope below radio station Comment
  CAS-BOT-BC264050  Viola adunca Roxana S. Ferris 1920-4-26 1978 San Mateo Road above Lagoon and mouth of Arroyo de Los Frijoles 30 Comment
  CAS-BOT-BC536571  Viola glabella John Hunter Thomas 1954-4-3 3814 San Mateo La Honda Creek, about 1 mi N of La Honda 152 Comment
  PASA1525  Viola glabella San Mateo Kings Mt. Comment
  RSA130981  Viola ocellata H. L. Mason 1917-3-8 66 San Mateo Kings Mtn. Comment
  JEPS50194  Viola odorata James G. Daly c. 1934 181 San Mateo 4 mi w of Skyline (Upper Corte Madera Canyon); Santa Cruz Mountains, Upper Corte Madera Canyon Comment
  UC581493  Viola sempervirens H. L. Mason 1927-4-23 3668 San Mateo La Honda Comment
  UC74940  Viola sempervirens C. F. Baker 1902-1-15 232 San Mateo w side of King's Mountain; The Pacific Slope, King's Mountain Comment
  RSA130691