Search Results — 2000 specimen records retrieved (1271 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCD14884  Abronia latifolia Chris Chan 1991-3-5 4 Sonoma California, Sonoma Co.; at the University of California Bodega Marine Lab; 33 Comment
  CAS-BOT-BC268102  Acacia Peter Rubtzoff 1973-8-21 7252 Sonoma Sonoma Creek bottom, near Agua Caliente Road crossing, west of Agua Caliente. Comment
  UCD160513  Acaena novae-zelandiae Daniel Potter; T. Harrington, M. Harrington, P. Lash, T. Potter. 2013-10-24 701 Sonoma Salt Point State Park, along Highway 1 at mile marker 43.37. 56 Comment
  CAS-BOT-BC451110  Acaena pinnatifida var. californica W. P. Vestal; A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross Comment
  CAS-BOT-BC332753  Acer macrophyllum Peter Rubtzoff 1980-5-26 9449 Sonoma Russian River at Forest Hills, 5.5 mi. E of Guerneville. Comment
  CAS-BOT-BC332799  Acer macrophyllum John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54011 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC332755  Acer macrophyllum Saichi Kawahara 1968-4-20 330 Sonoma King's mailbox, 3700 Trinity Road 304 Comment
  CAS-BOT-BC336942  Acer negundo var. californicum Irja Knight; Walter Knight 1964-11-3 761 Sonoma Sonoma Mt. Road. Between Folger Ranch and Enterprise Rd. Comment
  CAS-BOT-BC30086  Achillea millefolium Roxana S. Ferris 1937-8-18 9377 A Sonoma near mouth of Salmon Creek on Bodega Bay Comment
  CAS-BOT-BC30081  Achillea millefolium Peter Rubtzoff 1952-6-10 1227 Sonoma Top of Fitch Mtn. near Healdsburg 304 Comment
  CAS-BOT-BC166735  Achyrachaena mollis Peter Rubtzoff; H. A. Froebe 1971-5-30 6478 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC29164  Achyrachaena mollis Alice Eastwood 1921-4-24 10354 Sonoma Santa Rosa Comment
  UCD151098  Acmispon James A. Neilson Jr. 1974-6-1 s.n. Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  SBBG84015  Acmispon brachycarpus L. F. LaPre 1986-5-31 Sonoma Socrates Mine, ca. 9 mi ENE of Geyerville 914 Comment
  CAS-BOT-BC26654  Acmispon gracilis Amos Arthur Heller 1902-6-24 5754 Sonoma Near Burke's Sanitarium Comment
  UCD104197  Acmispon grandiflorus var. grandiflorus P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  UCD104299  Acmispon parviflorus Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-7-6 135 Sonoma Unit 35-B Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD104493  Acmispon wrangelianus Mary M. Hektner 1974-6-2 11 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC391711  Actaea rubra Mary P. Wells 1981-4-18 s.n. Sonoma Near So. Fork Gualala River, The Sea Ranch Comment
  CAS-BOT-BC29847  Adenocaulon bicolor Volney Rattan 1877-6-17 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC30277  Adenocaulon bicolor A. A. Heller 1902-6-26 5771 Sonoma Along Sonoma Creek at the foot of Mt. Hood Comment
  CAS-BOT-BC139920  Adenostoma fasciculatum A. A. Heller 1902-6-23 5741 Sonoma Petrified Forest Comment
  UCD162160  Adiantum aleuticum D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2014-3-23 1514 Sonoma Hooker Creek watershed. 480 Comment
  SEINET11720936  Adiantum jordanii F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -58 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC368050  Aegilops triuncialis Greg de Nevers 1989-6-8 9074 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CDA1676  Aegilops triuncialis T. C. Fuller 1960-6-14 4485 Sonoma J. Black Ranch, River Road, ca. 6 miles E/ Cloverdale. 0 Comment
  UCD136676  Aesculus californica Frederica Bowcutt 1994-6-12 1865 Sonoma Sugarloaf Ridge State Park. about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 1.5 air miles north of Kenwood, and 18 air mles NW of Napa. Adobe Canyon north of Sonoma Creek, north of Adobe Canyon Road, About 50 yards N. of Pony Gate trail juncture. 432 Comment
  UCSB15939  Aesculus californica Breedlove, Dennis 1962-6-6 Sonoma along State Highway 128; 1.2 miles northwest of U.S. Highway 101 at Cloverdale 121 Comment
  CAS-BOT-BC15351  Agoseris grandiflora var. grandiflora John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53957 Sonoma Fairfield Osborn preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC15399  Agoseris grandiflora var. grandiflora Mary P. Wells 1984-5-24 245 Sonoma Annadel State Park, Santa Rosa Comment
  JEPS36308  Agoseris hirsuta W. L. Jepson 1896-6-2 Sonoma Bodega Bay Comment
  UCD161266  Agoseris retrorsa James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3710 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  CAS-BOT-BC176398  Agrostis Peter Rubtzoff 1964-6-24 5378 Sonoma Coleman Marsh, along Salmon Creek Comment
  CAS-BOT-BC210001  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca. 1 air mi. WSW of Cunningham Station Comment
  CAS-BOT-BC383037  Agrostis Greg de Nevers 1989-4-1 9061 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  RSA785932  Agrostis Peter Rubtzoff 1973-8-27 7263 Sonoma Upper Green Valley Marsh. Comment
  SEINET10817024  Agrostis P. Rubtzoff 1966-8-22 Rubtzoff 5854 Sonoma SE of Lower Salmon Creek Marsh. Comment
  SACT000118  Agrostis alba Herbert Mason 1946-7-4 Sonoma Pitkin Marsh, btw Santa Rosa and Forestville Comment
  UC1100113  Agrostis alba Herbert L. Mason 1946-7-4 12888 Sonoma between Santa Rosa and Forestville Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC1153791  Agrostis blasdalei Beecher Crampton 1957-7-11 4345 Sonoma 4.6 mi n Salmon Creek (Duncan's Point, Sonoma Coast State Park); Sonoma Coast State Park, Salmon Creek Comment
  UCD51885  Agrostis densiflora Beecher Crampton 1957-7-22 4367 Sonoma 0.3 mile south of Stewart's Point, above Fisherman's Bay. Comment
  UCD52011  Agrostis densiflora Beecher Crampton 1957-7-22 4359 Sonoma 2 miles north of Stewart's Point, State Hwy. 1. Comment
  SEINET10790020  Agrostis exarata A. Arthur Heller 1902-6-27 Heller 5779 Sonoma West of Windsor near Russian river. Comment
  SEINET10790027  Agrostis exarata A. Arthur Heller 1902-6-4 Heller 5641 Sonoma Santa Rosa. Comment
  UCD52229  Agrostis exarata var. pacifica Beecher Crampton 1957-7-22 4381 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC139554  Agrostis gigantea Peter Rubtzoff 1951-7-1 335 Sonoma Pitkin Marsh near Forestville. Western branch of the Upper Marsh. Comment
  UC1146696  Agrostis microphylla Freed W. Hoffman 1941-6-20 2088 Sonoma Dutch Bill Creek North Coast Ranges, Dutch Bill Creek Comment
  UCD53054  Agrostis microphylla Freed W. Hoffman 1941-6-15 2153 Sonoma Eckert Ranch near Salt Point, Sonoma Coast. Comment
  CAS-BOT-BC138914  Agrostis pallens Milo S. Baker 1947-5-30 11774 Sonoma 2 miles northeast of Occidental along Harrison Grade. Comment
  UCD53074  Agrostis pallens Beecher Crampton 1955-6-17 2976 Sonoma 2.4 miles south of Monte Rio. Comment
  UCD53117  Agrostis pallens P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar Ranch. Comment
  UCD53211  Agrostis pallens R. Tofsrud 1951-5-1 s.n. Sonoma Summit of road between Kenwood and Oakville. Comment
  SEINET7594115 Image available Agrostis pallens A. S. Hitchcock 1908-1 2675 Sonoma Cloverdale, Cloverdale Comment
  UCD144566  Agrostis pallens Frederica Bowcutt 1994-6-12 1856 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air milse N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek, N of Adobe Canyon Road, at Pony Gate trail juncture. 432 Comment
  SEINET7594124 Image available Agrostis perennans A. A. Beetle 1941-1 2855 Sonoma 5 miles south of Steward Point 24 Comment
  CAS-BOT-BC138594  Agrostis stolonifera 1947-6-26 11842 Sonoma Cunningham Marsh ca. 1 mile (airline) southwest of Cunningham Station. Comment
  UC790981  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma 5 mi s Steward Point Comment
  UCD53458  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  UCD53478  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  RSA129082  Aira caryophyllea H. S. Yates 1934-4-21 3822 Sonoma Near Duncan Mills. Comment
  RSA316038  Aira caryophyllea Patricia Wilder 1934-6-10 3634 Sonoma 1.0 mile N of Jenner on California state Hwy 1.North coast 23 Comment
  UCD55801  Aira praecox Beecher Crampton 1957-7-11 4353 Sonoma above Blind Beach, just south of Goat Rock, Sonoma Coast State Park, ca. 9 miles north of Salmon Creek. Comment
  CAS-BOT-BC445341  Alisma lanceolatum Peter Rubtzoff 1962-7-4 4967 Sonoma Fitch Mtn. Grove, 2 mi. east of Healdsburg. Comment
  RSA790060  Alisma lanceolatum Peter Rubtzoff 1968-8-31 5953 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  SBBG39698  Alisma lanceolatum P. Rubtzoff 1955-7-16 1959 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC182744  Alisma triviale Peter Rubtzoff 1970-8-18 6304 Sonoma Five miles north of Sears Point Comment
  CAS-BOT-BC445473  Alisma triviale Volney Rattan 1879-1-1 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC445475  Alisma triviale Peter Rubtzoff 1980-8-23 9619 Sonoma Marin-Sonoma county line. San Antonio Creek on east side of Hwy. 101 crossing. On Marin County side of the creek. Comment
  CAS-BOT-BC445478  Alisma triviale Walter Knight; Irja Knight 1965-9-12 1188 Sonoma Newanga Road, Santa Rosa. Comment
  CAS-BOT-BC156311  Alismataceae Peter Rubtzoff 1955-5-21 1880 Sonoma Ross Marsh Comment
  UC843292  Allium amplectens Alice Eastwood 1915-6-6 4607 Sonoma Mt. St. Helena Comment
  UCD35882  Allium amplectens Beecher Crampton 1966-5-10 7731 Sonoma 6.5 miles n. of Sonoma, State Hwy. 12. Comment
  CAS-BOT-BC462380  Allium amplectens Milo S. Baker 1927-5-7 2124 b Sonoma Adobe Canon Comment
  CAS-BOT-BC462387  Allium amplectens R. C. Barneby 1954-4-30 11226 Sonoma S of Schellville 100 Comment
  UCD150550  Allium dichlamydeum P. G. Connors 1991-7-3 193 Sonoma Bodega Marine Laboratory, Bodega Head and Dunes. Comment
  SDSU11569  Allium dichlamydeum D. F. Howe 1963-7-2 3716 Sonoma Seabluff 4.2 miles north of Junction with #12 on #1 Comment
  SEINET3884472  Allium dichlamydeum D. W. McNeal 1968-6-15 411 Sonoma 13.3 mi. n. of Fort Ross.; 0 Comment
  UC1083345  Allium falcifolium Herbert L. Mason 1934-4-28 8074 Sonoma head of Dohrman Creek Dohrman's Creek, Jensen's Ranch Comment
  OBI49238  Allium falcifolium F. T. Bioletti 1892-1 s.n. Sonoma Comment
  CHSC79062  Allium neapolitanum John B. Nelson 2000-3-7 20944 Sonoma Pacific Coast Range. W side of Guerneville on S edge of River Road (=US Hwy 116). 48 Comment
  CAS-BOT-BC475434  Allium sativum Mary P. Wells 1985-7-1 523 Sonoma Dike of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC251181  Alnus Peter Rubtzoff 1960-9-15 4549 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  SEINET12031413  Alnus rhombifolia F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -256 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC169369  Alnus rubra Mary P. Wells 1984-7-20 394 A Sonoma E bank So. Fork Gualala River, The Sea Ranch (near Hot Spot) Comment
  UCD165117  Alnus rubra Peter Rubtzoff 1973-10-10 7338 Sonoma Salmon Creek, 0.25 miles south of Freestone. Comment
  CAS-BOT-BC138040  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1962-6-13 4895 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC138047  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1955-5-21 1882 Sonoma Ross Marsh. Comment
  UCD55875  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1955-5-14 1835 Sonoma Ross Marsh. Comment
  UCR261632  Alopecurus saccatus Ann Howald 2003-5-15 2335 Sonoma Inner North Coast Ranges, Sonoma Mountains, south end, upper east slope, c. 0.1 mile south of Rodgers Creek 205 Comment
  UCD55917  Alopecurus saccatus Milo Baker 1941-6-1 s.n. Sonoma somewhere on coast. Comment
  UCD165776  Amaranthus Peter Rubtzoff 1973-8-29 7284 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CDA37330  Amaranthus albus D. G. Kelch, Troy McGregor 2010-8-22 10 .335 Sonoma Geyser Peak Rd. Comment
  OBI33919  Ambrosia chamissonis David J. Keil 1983-6-29 17190 Sonoma Doran Beach County Park, Bodega Head Comment
  CAS-BOT-BC135666  Amelanchier utahensis A. A. Heller 1903-4-24 6617 Sonoma Woods near Cazadero Comment
  CAS-BOT-BC135671  Amelanchier utahensis John Thomas Howell; Alice Eastwood 1939-4-2 7378 Sonoma Near Camp Meeker on road to Occidental Comment
  UC12070  Amelanchier utahensis Jepson 1893-5-5 Sonoma Mt. St. Helena Comment
  POM161569  Amorpha californica var. napensis R. C. Bacigalupi 1927-9-3 s.n. Sonoma 2 miles NW of Cazadero on road to Sea View Comment
  POM252870  Amorpha californica var. napensis A. A. Heller 1902-6-24 s.n. Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC222279  Amsinckia John Thomas Howell 1934-3-25 11775 Sonoma Lakeville Comment
  RSA0089978  Amsinckia helleri J. T. Howell 1948-4-18 24208 Sonoma Hills east of Agua Caliente. Comment
  UC1178201  Amsinckia intermedia Francia Chisaki with R. Ornduff and H. G. Baker 1958-4-26 1122 Sonoma on road to Calistoga (2.9 mi n of junction with Hwy #12, junction e of Santa Rosa) Comment
  UCD119271  Amsinckia intermedia Botany 102 Students 1993-5-8 32 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon. N of Sugarloaf Ridge, near group campground. Comment
  JEPS30836  Amsinckia lunaris Rimo Bacigalupi and L. R. Heckard 1962-6-19 8592 Sonoma 1/4 mile southeast of Horseshoe Cove, at northeastern base of low hills forming Bodega Head proper. Comment
  CAS-BOT-BC26809  Amsinckia nigricans Amos Arthur Heller 1902-5-27 5614 Sonoma Bodega Bay Comment
  UC1084537  Amsinckia spectabilis Peter Kamb Ray 1952-5-30 2298 -1 Sonoma Hill 108 between Horseshoe Cove and Mussel Point (n end Bodega Bay); Bodega Head 30 Comment
  UCD128838  Anaphalis margaritacea Mary M. Hektner 1976-9-16 270 Sonoma below west half of Yardarm Drive, Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC137790  Andropogon virginicus var. virginicus H. S. Yates 1937-8-22 6865 Sonoma 2 miles southeast of Forestville. 30 Comment
  UC573792  Andropogon virginicus var. virginicus Virginia Bufford 1936-9-10 Sonoma 2 mi se Forestville (Pitkin Marsh); Sebastopol Quad., Pitkin Marsh Comment
  HSC71392  Angelica californica J. M. DiTomaso 1980-6-13 1602 Sonoma 4900 Trinity Rd., between Glen Ellen and Oakville Comment
  HSC71481  Angelica californica J. M. DiTomaso 1980-6-13 1596 Sonoma 4900 Trinity Rd., between Glen Ellen and Oakville Comment
  CAS-BOT-BC221430  Angelica hendersonii Alice Eastwood 1915-6-29 4881 Sonoma Bodega Point Comment
  CAS-BOT-BC221437  Angelica hendersonii L. R. Abrams 1920-7-3 7583 Sonoma Near Anchor Bay Comment
  UC891451  Anisocarpus madioides A. A. Heller 1902-6-26 5769 Sonoma along Sonoma creek, at the foot of Mt. Hood Mt. Hood Comment
  CAS-BOT-BC102232  Anthemis cotula A. A. Heller 1902-6-10 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC173666  Anthemis cotula Peter Rubtzoff 1958-8-9 3834 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC173815  Anthemis cotula Peter Rubtzoff 1956-9-14 2895 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC173818  Anthemis cotula Peter Rubtzoff 1959-6-13 4139 Sonoma Willow Creek Marsh. Comment
  UCD129069  Anthemis cotula Charles B. Heiser Jr. 1946-8-17 1827 Sonoma Banks of Russian River, near Duncan Mills. Comment
  HSC93590  Anthoxanthum occidentale G. Fred Hrusa, G. L. Stebbins 1994-3-28 11705 Sonoma 14 mi. W of Cazadero Comment
  CAS-BOT-BC137691  Anthoxanthum odoratum Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road 3 miles east of Stewarts Point. Comment
  RSA129297  Anthoxanthum odoratum H. S. Yates 1937-6-6 6583 Sonoma 1 mile E. of Duncan Mills 91 Comment
  RSA47825  Anthriscus caucalis L. Beane, L. James 1949-5-11 1985 Sonoma 3 miles east of Hopland Comment
  JEPS5335  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum W. L. Jepson 1923-6-28 10004 Sonoma near Kenwood; Sonoma Canyon 243 Comment
  JEPS83373  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-6-15 330 Sonoma 0.3 mi n Porter Creek Road on Tarwater Grade portion of Franz Vlly Rd (w of Calistoga (Napa County), w side of road); Mark West Springs Quad. (7.5', 1958) 198 Comment
  UC1238996  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Freed W. Hoffman 1947-5-23 535 Sonoma near Guerneville (Gabe's Rock, Pool Ridge); North Coast Ranges, Pool Ridge, Gabe's Rock Comment
  UC192792  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum unknown 1880-7 Sonoma Petaluma Comment
  UC421606  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum John Thomas Howell 1929-6-30 4319 Sonoma 4 mi from Petrified Forest (on road to Knights Valley) Comment
  UC479120  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Marcus E. Jones, A. M. 1931-7-5 28810 Sonoma The Geysers Comment
  OBI49250  Antirrhinum virga Michener & Bioletti, Bioletti 2005-3-7 s.n. Sonoma Hoods Peak [illegible] Comment
  UC26385  Antirrhinum virga Edw. L. Greene 1894-6-17 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC457592  Aphanes occidentalis John H. Thomas 1966-3-22 11537 Sonoma Near the intersection of Occidental Road and Facedini Lane between Occidental and Graton, 1 mile east of Occidental. Serpentine. Comment
  UC32476  Apiastrum angustifolium V. K. Chesnut before August, 1901 Sonoma Sonoma County Comment
  UC1125882  Aquilegia formosa E. Armstrong 1934-3-26 947 Sonoma Camp Meeker Sebastopol Quad. 60 Comment
  SJSU8313  Arabis blepharophylla D. N. Glover 1974-2-24 Sonoma 1 mi E of junction of Valley Ford & Freestone Rds, 2 mi W of Bodega 76 Comment
  RSA0125531  Arabis blepharophylla A. A. Heller, H. E. Brown 1902-3-29 5178 Sonoma Bodega Bay. Comment
  LA210044  Arabis glabra var. glabra W. B. C. after Rollins; 1930-6-8 5291 Sonoma 8.5 mi. N of Bodega Bay Comment
  JEPS98902  Arctostaphylos James Roof and Walter Knight 1967-3-20 Sonoma N side of Guerneville Road, 1/2 mi W of Vine Hill Road Comment
  RSA629210  Arctostaphylos Jon E. Keeley 1993-9-11 24790 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629223  Arctostaphylos Jon E. Keeley 1993-9-11 24776 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1084441  Arctostaphylos G. Thomas Robbins 1940-3-22 301 Sonoma Guerneville Rd ca 8.5 mi w Santa Rosa (in small gully along road); Vine Hill region 45 Comment
  UC535018  Arctostaphylos H. F. Copeland 1933-3-18 A 13 Sonoma on College Ave. Hwy near Santa Rosa; Vine Hill region Comment
  UC535027  Arctostaphylos H. F. Copeland 1932-3-18 A 4 Sonoma n Santa Rosa; Rincon Ridge Comment
  UC1388323  Arctostaphylos X candidissima Freed W. Hoffman 1947-9-29 505 Sonoma headwaters of creek North Coast Ranges, Main Austin Creek, Layton Mine Comment
  CDA11253  Arctostaphylos bakeri G. F. Hrusa, G. L. Stebbins, D. Keil, V. L. Holland 1994-6-5 11876 Sonoma North Coast Biodiversity Arena; Approx. 1 m. N of Camp Meeker on Bohemian Hwy. 0 Comment
  UC1281479  Arctostaphylos bakeri H. E. McMinn 1936-4-5 4409 Sonoma two mi n Occidental Comment
  CAS-BOT-BC24076  Arctostaphylos bakeri Roger Raiche 1986-1-12 60001 Sonoma NE of Healdsburg, Reservoir Hill 121 Comment
  SDSU1487  Arctostaphylos bakeri subsp. bakeri D. F. Howe 1969-6-8 4635 Sonoma 3.8 miles east of Occidental. 274 Comment
  UCD50474  Arctostaphylos bakeri subsp. bakeri Roman Gankin; W. R. Hildreth 1967-10-4 1074 Sonoma Harrison Grade Road, near summit, east of Occidental. Comment
  UCD50475  Arctostaphylos bakeri subsp. bakeri Roman Gankin; W. R. Hildreth 1967-10-4 1075 Sonoma Harrison Grade Road, near summit, east of Occidental. Comment
  RSA622716  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24764 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622718  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24761 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622719  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24760 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622724  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24767 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  SEINET11987356  Arctostaphylos canescens W. Knight, Knight, I. 1981-1 3986 Sonoma 4.2 mi up Cavedale Rd from jct of CA 12 Comment
  SEINET11991947  Arctostaphylos canescens W. Knight, Knight, I. 1984-1 5062 Sonoma Alta Vista Lane, Rincon Ridge, Santa Rosa Comment
  CAS-BOT-BC23970  Arctostaphylos canescens subsp. canescens Mrs. H. C. Cantelow 1940-4-6 3781 Sonoma On Triniti road w. of Boyes Spring Comment
  CDA10853  Arctostaphylos canescens subsp. canescens G. F. Hrusa, G. L. Stebbins 1994-4-8 11729 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  POM209916  Arctostaphylos canescens subsp. canescens H. F. Copeland 1933-3-18 A- 10 Sonoma Vine Hill region west of Santa Rosa. Comment
  RSA164627  Arctostaphylos canescens subsp. canescens P. C. Everett 1963-11-21 11807 Sonoma Rincon Ridge, now Robt. Sones' residence, ca. 3 mi. ne. of Sasnta Rosa. 145 Comment
  CAS-BOT-BC23968  Arctostaphylos canescens subsp. canescens Milo S. Baker Fall 1936 8622 Sonoma Rutherford - Glen Ellen road halfway to summit Comment
  CAS-BOT-BC23885  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1937-4-11 12894 Sonoma Rincon Ridge NE of Santa Rosa Comment
  CAS-BOT-BC23900  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1937-4-11 12894 Sonoma Rincon Ridge, northeast of Santa Rosa Comment
  UC549709  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1024 Sonoma e Sta. Rosa; Rincon Ridge Comment
  SEINET11989213  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1982-1 4669 Sonoma Tilden Botanic Garden, Berkeley, originally from Sones property on Rincon Ridge, Montecito Ave near Comment
  SEINET11989282  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1982-1 4443 Sonoma Tilden Botanic Garden, Berkeley, originally from Rincon Ridge Comment
  POM202851  Arctostaphylos columbiana J. T. Howell 1934-3-3 11743 Sonoma Between Fort Ross and Stewart's Point. Comment
  RSA30114  Arctostaphylos columbiana E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-9 18603 Sonoma 0.2 mi. NW of Ocean cove, Hwy 1 between Fort Ross and Point Arena; 5 mi. NW of Fort Ross 91 Comment
  SBBG5404  Arctostaphylos columbiana H. and M. Dearing 1939-5-15 3392 Sonoma N of Fort Ross Comment
  UC424786  Arctostaphylos columbiana Milo S. Baker 1929-7-16 3621 c Sonoma nw Inverness (near Hiway) Comment
  UC549698  Arctostaphylos columbiana J. E. Adams 1935-3-28 730 Sonoma seven mi n Fort Ross Comment
  UCD50671  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth and Ken Milam 1965-4-13 497 Sonoma 0.1 mile north of Timber Cove, east of State Highway 1. Comment
  CAS-BOT-BC23603  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11743 Sonoma Between Fort Ross and Stewart's Point Comment
  UCD51494  Arctostaphylos columbiana Beecher Crampton 1957-7-22 4388 Sonoma Along State Hwy. 1; 8.7 miles south of Sewart's Point. Comment
  CAS-BOT-BC24981  Arctostaphylos densiflora Catherine Best 1986-2-9 1162 Sonoma On Stoetz Lane about 3 miles NE of Occidental. Comment
  CAS-BOT-BC24986  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5770 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  CAS-BOT-BC25020  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma Near Vine Hill Schoolhouse. Comment
  POM209918  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma Near Vine Hill School House Comment
  SBBG28870  Arctostaphylos densiflora J. Clausen 1933-3-26 743 Sonoma Vine Hill Schoolhouse, 10 mi W of Santa Rosa Comment
  UC1120152  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 830 Sonoma Vine Hill Sebastapol Quadrangle Comment
  UC549450  Arctostaphylos densiflora J. E. Adams 1934-3-28 723 Sonoma Vine Hill School Sta. Rosa Comment
  UCD23476  Arctostaphylos glandulosa Alan T. Whittemore 1976-5-31 134 Sonoma Hwy 1 about 2 mi. south of Salt Point State Park and north of Fort Ross. Comment
  CAS-BOT-BC23325  Arctostaphylos glandulosa subsp. cushingiana C. Hart Merriam 1907-7-27 s.n. Sonoma Mt. St. Helena, Knights Valley slope Comment
  UC1084434  Arctostaphylos glandulosa subsp. glandulosa G. Thomas Robbins 1940-3-21 292 Sonoma bed of creek e Chalk Hill road (5-6 mi e of Windsor); Barnes Creek 38 Comment
  RSA631196  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1993-9-11 24732 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA631198  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1993-9-11 24728 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA339404  Arctostaphylos hispidula Roger Raiche 1984-11-10 RR 40541 Sonoma Rockpile Road: 7.8 mi north of its beginning at intersection of Skaggs Springs-Stewart Point Rd 548 Comment
  SEINET11993339  Arctostaphylos hispidula Unknown 1984-1 RR 40016 Sonoma Rockpile Road, 9.1 mi N from its intersection & beginning at Skaggs Springs-Stewarts Point Rd 503 Comment
  CAS-BOT-BC24407  Arctostaphylos manzanita Roger Raiche; Steve Edwards 1983-6-9 100 Sonoma The Cedars, w. of ridge on Twitchell property near Cazadero. 274 Comment
  CAS-BOT-BC38987  Arctostaphylos manzanita Roger Raiche; Steve Edwards; Walter Knight; Irja Knight 1983-7-3 4753 Sonoma Near Cazadero, The Cedars, population samples from north end of 10 acre study area. 274 Comment
  RSA633060  Arctostaphylos manzanita Jon E. Keeley 1993-9-11 24711 Sonoma Along Calistoga Road, 19 km southwest of Highway 128. 220 Comment
  SEINET3164297  Arctostaphylos manzanita L. S. Rose 1940-2-12 40004 Sonoma Rincon Ridge, 2 mi. e. of Santa Rosa 61 Comment
  RSA633053  Arctostaphylos manzanita Jon E. Keeley 1996-6-22 27485 Sonoma Lake Sonoma Overlook off Stewarts Road. 250 Comment
  SEINET11990966  Arctostaphylos manzanita Unknown 1983-1 30499 K Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection of Soda Springs Rd Comment
  SEINET11990969  Arctostaphylos manzanita Unknown 1983-1 30491 A Sonoma near intersection between East Austin Creek & Gray Creek 140 Comment
  CAS-BOT-BC38905  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11301 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38921  Arctostaphylos manzanita subsp. glaucescens P. V. Wells; Walter Knight; Irja Knight 1986-1-10 5223 Sonoma Next to Carlton Spridegeon's mailbox on Rockridge Lane, Rincon Ridge, Santa Rosa. Comment
  CAS-BOT-BC38654  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-3-14 5763 Sonoma Rincon Ridge Comment
  CAS-BOT-BC38695  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; Roger Raiche; Steve Edwards 1983-7-3 4751 Sonoma The Cedars, near Cazadero 274 Comment
  CAS-BOT-BC38704  Arctostaphylos manzanita subsp. manzanita A. A. Heller; H. E. Brown 1902-3-20 5107 Sonoma Near Windsor Comment
  CAS-BOT-BC38712  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 1 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa Comment
  UC726694  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1941-6-4 16161 Sonoma on the Gurneville Road about 2 mi n Graton Comment
  SBBG115507  Arctostaphylos nummularia subsp. nummularia A. T. Leiser 1968-1-16 Sonoma Sea Ranch 106 Comment
  CAS-BOT-BC43874  Arctostaphylos stanfordiana John Thomas Howell 1933-4-1 10929 Sonoma Triniti Mt., 2 miles ne. of Glen Ellen Comment
  CAS-BOT-BC47331  Arctostaphylos stanfordiana Walter Knight; Irja Knight 1963-9-1 259 Sonoma Pine Mt. Rd. NE of Cloverdale. Harold Smith Ranch. Comment
  CAS-BOT-BC47336  Arctostaphylos stanfordiana Lewis S. Rose 1955-2-28 55009 Sonoma 2 mi. w. of Graton. Road to Occidental. 121 Comment
  JEPS98851  Arctostaphylos stanfordiana James B. Roof 1963-2-28 Sonoma Mt. St. Helena 868 Comment
  RSA636810  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24754 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636823  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24744 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  SEINET2028691 Image available Arctostaphylos stanfordiana B. F. Copeland 1933-3-18 A 11 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa Comment
  UC126754  Arctostaphylos stanfordiana Miss Alice Eastwood 1907-3-29 Sonoma Mt. St. Helena Comment
  UC1784231  Arctostaphylos stanfordiana Ethel Crum 1930-3-23 540 Sonoma Mt. St. Helena Comment
  UC549545  Arctostaphylos stanfordiana J. E. Adams 1934-3-10 639 Sonoma Mt. St. Helena Comment
  SEINET11987193  Arctostaphylos stanfordiana W. Knight, Knight, I. 1981-1 3919 Sonoma Tilden Botanic Garden, Berkeley, orig. from near Annapolis Comment
  SEINET11989145  Arctostaphylos stanfordiana B. A. Stein 1981-1 453 Sonoma Ida Clayton Rd 457 Comment
  UCD51008  Arctostaphylos stanfordiana subsp. decumbens Roger Raiche 1982-4-10 20301 C Sonoma King Ridge Rd. (4.5 mi. n. of jct. with Ft. Ross Rd.) about .7 mi. in from King Ridge Rd. on Old Layton Mine Rd. On topo map area is called ' Red Slide', north of Cazadero in Sonoma County. Comment
Read comments Oct 17 2013
  POM209919  Arctostaphylos stanfordiana subsp. stanfordiana H. F. Copeland 1933-3-18 A- 6 Sonoma Rincon Ridge, north of Santa Rosa. Comment
  POM210078  Arctostaphylos stanfordiana subsp. stanfordiana H. F. Copeland 1933-3-18 A- 11 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa. Comment
  UCD112580  Arctostaphylos stanfordiana subsp. stanfordiana Christopher Mallek 2008-5-2 s.n. Sonoma Hooker Canyon. 590 Comment
  SEINET11990990  Arctostaphylos stanfordiana var. repens W. Knight, Knight, I. 1983-1 4726 Sonoma Tilden Botanic Garden, Berkeley, orig. from Rincon Ridge near Santa Rosa Comment
  UC549527  Arctostaphylos uva-ursi J. E. Adams 1934-3-28 738 Sonoma coastal bluffs s Gualala Riv. Comment
Read comments Nov 10 2011
  UC549531  Arctostaphylos uva-ursi J. E. Adams 1934-3-28 747 Sonoma 1 mi s McNamees Store Comment
  SEINET11989191  Arctostaphylos viscida S. W. Edwards 1982-1 s.n. Sonoma The Cedars Ridge, N of Cazadero, NW of King Ridge Rd at source of Big Austin Creek Comment
  RSA8490  Arctostaphylos viscida subsp. pulchella J. T. Howell 1933-4-2 10939 Sonoma Sonoma Creek Canyon. Comment
  RSA416044  Aristolochia californica Christopher Davidson 1977-6-17 5875 Sonoma State Hwy 12, ca. 3 mi. W of Guerneville. Along Russian River. 15 Comment
  SEINET7253522 Image available Armeria maritima subsp. californica W. L. Jepson 1931-1 15944 Sonoma Salmon Creek Comment
  CDA31283  Arnica discoidea D. G. Kelch, Ed Biffin 2010-5-3 10 .192-B Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCR255653  Arnica discoidea Greg de Nevers 1997-4-24 10956 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  SEINET10887982  Arrhenatherum elatius P. Rubtzoff 1979-8-5 Rubtzoff 9302 Sonoma Freestone Marsh area; along Bohemian Highway at Freestone Flat Road junction, southeast of Freestone Marsh. Comment
  CAS-BOT-BC90489  Artemisia douglasiana G. DeNevers 1981-6-6 1446 Sonoma at the first Pepperwood entrance, Pepperwood Ranch Comment
  CAS-BOT-BC90493  Artemisia douglasiana Peter Rubtzoff 1951-9-2 699 Sonoma Southern half of Lower Marsh Comment
  UCD158727  Artemisia douglasiana Teresa A. Sholars 1976-9-11 s.n. Sonoma Mayacmas Mtns. Ca. 2 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd. along Big Sulphur Creek. Elevation estimated by label maker. 853 Comment
  SEINET258297  Artemisia suksdorfii Leila M. Shultz 1986-9-20 10234 Sonoma 1 mile north of Jenner along Pacific Coast Highway 6 Comment
  CAS-BOT-BC97232  Artemisia suksdorfii Mrs. Bailey 1930-4-1 s.n. Sonoma coast near Jenner Comment
  SEINET196505  Artemisia vulgaris J. D. Skoss 1948-7-25 41 Sonoma Sonoma County: Shellville. Comment
  CAS-BOT-BC368057  Arum italicum Greg de Nevers 1998-5-20 11254 Sonoma Mark West Creek on Cresta Ranch Comment
  SEINET197693  Asclepias solanoana Helen K. Sharsmith 1952-6-18 4128 Sonoma Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains. 975 Comment
  CAS-BOT-BC478540  Asparagus officinalis Peter Rubtzoff 1952-7-20 1318 Sonoma Pitkin Marsh, near Forestville Comment
  UC1299770  Aspidotis densa Freed W. Hoffman 1947-5-30 553 Sonoma Austin Creek Layton Mine Comment
  CAS-BOT-BC68785  Aspidotis densa Catherine Best 1983-4-16 s.n. Sonoma On serpentine on the Bohemian Hwy. about 3 miles north of Occidental. Comment
  UC1242061  Aspidotis densa Don Branscomb 1958-6-1 Sonoma head of Oregon Canyon Guerneville Comment
  CAS-BOT-BC157688  Asteraceae Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR143601  Astragalus G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  CAS-BOT-BC186742  Astragalus gambelianus Greg de Nevers; Frank Almeda 1987-4-11 8141 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC186818  Astragalus gambelianus M. S. B. 1925-4-19 270 a-Local Sonoma Near Bruner's, Sonoma Mt. Comment
  CAS-BOT-BC66146  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1957-6-28 3384 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC66156  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1951-7-8 411 Sonoma Northern half of Lower Marsh Comment
  CAS-BOT-BC66151  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1959-9-12 4256 Sonoma Willow Creek Marsh Comment
  UCD114253  Athysanus pusillus L. Whitney 1932-4-1 s.n. Sonoma Vine Hill, Santa Rosa. Comment
  UCD151169  Athysanus pusillus James A. Neilson Jr. 1974-3-27 3021 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  UCD144426  Avena barbata Frederica Bowcutt; Jolie Henricks and Jeff Kennedy 1994-5-1 1789 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 125 yds. 1/4 mile NW of confluence with Rattlesnake Creek. 350 Comment
  UCD56217  Avena barbata B. Crampton 1955-3-15 2326 Sonoma U.S. Hwy. 101. Asti. Comment
  CDA36981  Avena fatua CDFA Staff s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  CAS-BOT-BC98603  Baccharis douglasii John Thomas Howell 1945-8-14 21398 Sonoma Perry Marsh Comment
  RSA783715  Baccharis douglasii Peter Rubtzoff 1955-9-24 2148 Sonoma Duncan Mills Marsh Comment
  JEPS40663  Baccharis glutinosa W. L. Jepson 1921-9-12 9481 Sonoma Alexander Valley 45 Comment
  UC527412  Baccharis pilularis Carl B. Wolf and E. R. Johnson 1934-10-13 Sonoma 2 4/10 mi n of mouth of Russian River 60 Comment
  CAS-BOT-BC173596  Barbarea Peter Rubtzoff 1989-4-20 9989 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  RSA0025201  Barbarea Peter Rubtzoff 1989-6-10 10004 Sonoma Along Russian River, ca. 6 mi east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC16693  Barbarea orthoceras A. A. Heller; H. E. Brown 1902-3-20 5106 Sonoma Near Windsor. Comment
  CAS-BOT-BC16698  Barbarea orthoceras John Thomas Howell 1951-5-28 27497 Sonoma Laguna east of Sebastopol. Comment
  CAS-BOT-BC145836  Beckmannia syzigachne Michener; Bioletti 1893-6-10 114 Sonoma Kenwood. Comment
  CAS-BOT-BC145840  Beckmannia syzigachne Peter Rubtzoff 1958-7-5 3744 Sonoma Atascaderos Creek Marsh. Comment
  JEPS97716  Beckmannia syzigachne Annetta M. Carter 1934-4-29 508 Sonoma 1 mi. W of Two Rock Junction on rd. to Tomales. Comment
  RSA13556  Beckmannia syzigachne H. P. Bracelin 1930-7-27 20 Sonoma One mile N. of Fort Ross. Comment
  UCR248770  Beckmannia syzigachne Peter Rubtzoff 1976-5-30 8571 Sonoma North Coast Range, Kenwood Marsh 120 Comment
  CAS-BOT-BC75659  Berberis nervosa Walter Knight; Irja Knight 1963-11-22 426 Sonoma Ida Clayton Road not far from Lake county line. Comment
  CAS-BOT-BC102051  Bidens cernua Peter Rubtzoff 1952-10-26 1333 Sonoma Pitkin Marsh, near Forestville; lower part of the Upper Marsh Comment
  CAS-BOT-BC290718  Bidens frondosa Peter Rubtzoff 1968-9-21 5984 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  CAS-BOT-BC290651  Bidens laevis Peter Rubtzoff 1963-10-30 5300 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC290564  Bidens laevis Peter Rubtzoff 1967-8-30 5874 Sonoma Pitkin Marsh, near Forestville. Southern part of the Upper Marsh. Comment
  CAS-BOT-BC100251  Blennosperma bakeri Milo S. Baker 1952-3-20 12401 Sonoma East side of 5th St between McArthur and Bettencourt Strs. This is type loc. West Sonoma City Comment
  CAS-BOT-BC258028  Blennosperma bakeri Peter Rubtzoff; Nancy Harrison; Walter Lennon 1974-5-11 7391 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  SEINET3074489  Blennosperma bakeri M. S. Baker 1946-1 Sonoma Comment
  RSA0000973  Blennosperma bakeri Milo S. Baker 1946-4-2 11307 Sonoma Western outskirts of Sonoma in 'hog wallow' about 0.25 mi south of Napa Street in field on east side of street. Comment
  RSA0008303  Blennosperma bakeri Peter H. Raven 1963-4-28 18251 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  SEINET4964102  Blennosperma bakeri Unknown 1946-1 Sonoma Comment
  RSA128567  Blennosperma nanum Peter H. Raven 1954-2-27 6421 Sonoma Cavedale Road, ca. 3 miles north of Boyes Springs, Sonoma Valley. Comment
  CAS-BOT-BC105957  Blennosperma nanum var. nanum Ruth Hass 1975-3-9 s.n. Sonoma Near Summerfiled Road near Bennett Valley, se. of Santa Rosa Comment
  CAS-BOT-BC105963  Blennosperma nanum var. nanum Peter H. Raven 1954-2-27 6421 Sonoma Cavedale Road, ca. 3 miles n. of Boyes Springs, Sonoma Valley Comment
  UC337456  Blennosperma nanum var. nanum J. G. Lemmon 1888-3-1 Sonoma Warner's Ranch, Healdsburg Comment
  UC353927  Blennosperma nanum var. nanum Milo S. Baker 1928-3-24 2617 b Sonoma near, along Pacific Hiway Windsor Comment
  CAS-BOT-BC164674  Boisduvalia Peter Rubtzoff 1972-4-23 6731 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC154867  Boisduvalia Peter Rubtzoff; Nancy Harrison 1974-6-8 7579 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road Comment
  CAS-BOT-BC154956  Boisduvalia Peter Rubtzoff 1971-7-23 6613 Sonoma Laguna, Chileno Valley Comment
  SEINET8726059 Image available Boisduvalia densiflora var. imbricata Lewis S. Rose 1938-1 38252 Sonoma Bloomfield. 30 Comment
  CAS-BOT-BC156320  Boisduvalia glabella Peter Rubtzoff 1955-8-6 2026 Sonoma Austin Creek Marsh. Comment
  UCR250386  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1955-8-20 2083 Sonoma Bodega Harbor Marsh 0 Comment
  UCD136850  Botrychium multifidum Mary M. Hektner 1974-7-25 171 Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1, off of Headland's Reach 6 feet south of draw which parallels Headland's Reach and is east of Green Cove Drive. Comment
  UC20849  Bowlesia incana Bolander 1866-4-11 4633 Sonoma Petaluma Comment
Read comments Mar 13 2009
  CDA19901  Boykinia occidentalis R. Gross 2002-6-11 s.n. Sonoma Northern California; Trout farm on NW side of Mt St Helena. 0 Comment
  RSA93383  Brachypodium distachyon J. T. Howell 1948-4-18 24214 Sonoma Hills east of Agua Caliente. Comment
  CAS-BOT-BC157983  Brassicaceae Peter Rubtzoff 1972-4-23 6737 Sonoma Vernal pool, 4.25 miles W of Glen Ellen on Bennett Valley Road Comment
  UC1222965  Brickellia californica Joseph P. Tracy 1947-10-6 17938 Sonoma w of Knight's Valley (gravel bar along Mayacamas Creek); Mayacamas Creek Comment
  UC1299277  Brickellia californica Freed W. Hoffman 1946-8-16 786 Sonoma 1 mi below Guerneville (gravel bar along Russian River, North Coast Ranges); North Coast Ranges, Russian River Comment
  OBI35095  Briza maxima David J. Keil 1983-6-30 17213 Sonoma Stillwater Cove Regional Park Comment
  RSA47576  Briza maxima L. Beane, Lois E. James 1949-5-16 1949 Sonoma About 3 mi. S. of Cloverdale Comment
  UCR218634  Briza maxima George K. Helmkamp, E. A. Helmkamp 2010-6-4 16204 Sonoma North Coast Ranges, Mark West Springs Road, 1.7 rd. miles east of US-101, 2.5 air miles NE (75 deg. ) of Fulton 63 Comment
  SEINET10861606  Briza maxima Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2619 Sonoma Fort Ross State Park, along State Highwa 1, between Fort Ross and Jenner above Pacific Ocean. 50 miles northwest of San Francisco. 30 Comment
  CAS-BOT-BC145281  Briza minor A. A. Heller 1902-6-7 5649 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UC1130933  Briza minor H. S. Yates 1934-4-21 Sonoma near Duncan Mills; Duncan Mills Quadrangle Comment
  UCD57380  Briza minor Charles B. Heiser Jr. 1946-5-19 1753 Sonoma Russian River near Duncan Mills. Comment
  CAS-BOT-BC478963  Brodiaea californica subsp. californica Greg de Nevers 1991-6-22 9753 Sonoma Pepperwood Natural Preserve 3450 Franz Valley Road 475 Comment
  CAS-BOT-BC478965  Brodiaea californica subsp. californica Greg de Nevers 1991-6-22 9753 Sonoma Pepperwood Natural Preserve 3450 Franz Valley Road 475 Comment
  CAS-BOT-BC376235  Brodiaea californica subsp. leptandra Greg de Nevers 1992-6-26 10180 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  CAS-BOT-BC132209  Brodiaea californica var. leptandra Milo S. Baker 1925-1-1 234 local Sonoma Adobe [Canon] Canyon above Kenwood Sps. Comment
  UCD150146  Brodiaea coronaria Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain. NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds. Sampling pool #1. 43 Comment
  JEPS7638  Brodiaea elegans subsp. elegans W. L. Jepson 1918-6-21 7620 Sonoma Calhoun Ranch Windsor, Calhoun Ranch 30 Comment
  CAS-BOT-BC484399  Brodiaea elegans subsp. elegans Peter Rubtzoff 1969-6-15 6087 Sonoma Laguna de Santa Rosa 1 mile east/southeast of Sebastopol Comment
  CAS-BOT-BC486531  Brodiaea elegans subsp. elegans Peter Rubtzoff 1961-6-17 4631 Sonoma Bennett Mountain Lake Comment
  RSA227221  Brodiaea elegans subsp. elegans Peter Rubtzoff 1969-6-15 6087 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  UC72287  Brodiaea elegans subsp. elegans Milo S. Baker 1904-6-19 Sonoma above Maple Glen; Sonoma Creek Canyon Comment
  UC963918  Brodiaea leptandra Milo S. Baker 1947-5-30 11771 Sonoma sw slope Hood Mt. (near house trail from Gray Ranch) Comment
  SEINET206246  Brodiaea stellaris Rimo Bacigalupi, L. R. Heckard 1961-6-9 7746 Sonoma Along Stoeti Lane about 0.5 mile northwest of its junction with Harrison Grade road and about 0.75 mile northwest of O 229 Comment
  UC1300937  Brodiaea terrestris subsp. terrestris Helen K. Sharsmith 1963-5-25 5474 Sonoma Two Rock to Tomales road (w edge of Sonoma County); San Francisco Region 91 Comment
  CAS-BOT-BC486462  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1951-6-30 288 Sonoma Uppermost part of the western branch of the Upper Marsh, near the edge of a thickett Comment
  CAS-BOT-BC486464  Brodiaea terrestris subsp. terrestris Rimo Bacigalupi 1926-3-27 1251 Sonoma Meadow opposite Myrtle dale gyser 11/2 miles north of Calistoga Comment
  SBBG12947  Brodiaea terrestris subsp. terrestris A. I. Richardson 1961-6-17 22 Sonoma overlooking ocean, near Timber Cove, N of Ft Ross Comment
  SBBG53021  Brodiaea terrestris subsp. terrestris M. R. Benedict 1978-4-18 Sonoma Skaggs Springs Rd, ca. 8 mi W of Geyserville Comment
  UCD58202  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3564 Sonoma 10.2 miles northeast of Santa Rosa on road to Calistoga. Comment
  CAS-BOT-BC149090  Bromus carinatus var. carinatus Peter Rubtzoff 1953-5-18 1401 Sonoma South of Guernevile (Neeley Hill area). Comment
  CAS-BOT-BC149097  Bromus carinatus var. carinatus John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53991 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 Comment
  UC1010989  Bromus carinatus var. carinatus Virginia Bufford 1936-5-19 263 Sonoma 2 or 3 mi from Santa Rosa (Bennett Valley); Bennett Valley Comment
  UC1155619  Bromus carinatus var. carinatus G. L. Stebbins Jr. 1942-5-12 3232 Sonoma Sebastopol Comment
  UC1155624  Bromus carinatus var. carinatus G. L. Stebbins Jr. 1942-5-12 3232 Sonoma Sebastopol Comment
  UC573756  Bromus carinatus var. carinatus H. S. Yates 1936-5-17 5627 Sonoma 2 mi n of Bodega Bay 3 Comment
  RSA127002  Bromus commutatus H. S. Yates 1937-6-6 6581 Sonoma 8 miles S. W. of Healdsburg 152 Comment
  UCD36635  Bromus commutatus Beecher Crampton 1955-6-8 2829 Sonoma Sonoma County, 6 miles northwest of Calistoga, along State Highway 128. Comment
  CAS-BOT-BC155661  Bromus diandrus G. DeNevers 1981-4-8 672 Sonoma Pepperwood Ranch. Pippindale Farm. Cresta Stable. 3000 Mark West Springs Road. Comment
  UCD58521  Bromus diandrus Gerry North 1993-4 1 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At Goodspeed trailhead pullout. On bank edge above Sonoma Creek. 213 Comment
  CAS-BOT-BC155213  Bromus hordeaceus Mary P. Wells 1984-4-23 190 Sonoma Rincon Valley, Santa Rosa. Comment
  CAS-BOT-BC155249  Bromus hordeaceus John H. Thomas 1976-6-16 18341 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC155250  Bromus hordeaceus John H. Thomas 1966-5-8 11596 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  CAS-BOT-BC155215  Bromus hordeaceus Walter Knight; Irja Knight; J. T. Howell 1987-5-27 6275 Sonoma Dodd Road Preserve. 24 Comment
  SEINET11690154  Bromus hordeaceus W. Knight, Knight, I.; Howell, J. T. 1987-1 6278 Sonoma Todd Road Preserve 24 Comment
  UCD58771  Bromus hordeaceus var. glabrescens P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa. Calistoga. Petrified forest-road. Comment
  UCD58951  Bromus laevipes Gerry North 1993-4 20 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Second pullout on right after park entrance. 0.3 miles from Goodspeed trailhead. 50 m south of Pony Gate Gulch Creek crossing. 274 Comment
  UC903721  Bromus madritensis subsp. rubens Milo S. Baker 1947-5-7 11724 Sonoma Hood Mountain, near Grant Line Hood Mountain 228 Comment
  JEPS77265  Bromus madritensis subsp. rubens Robert M. Lloyd 1963-4-24 2402 Sonoma 18.3 mi e of State Highwat 12 on road to Oakdale 243 Comment
  UC766916  Bromus vulgaris R. F. Hoover 1941-5-14 5097 Sonoma sw of Occidental (near Joy District School) Comment
  UCD114948  Cakile maritima Mary M. Hektner 1974-7-19 150 Sonoma Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD114956  Cakile maritima Walter Russell 1947-3-5 s.n. Sonoma Bodega Bay. Comment
  UCD114959  Cakile maritima Helen K. Sharsmith 1963-5-25 5499 Sonoma Sand dunes just south of Bodega Harbor. 1 Comment
  UC1026380  Calamagrostis bolanderi John Thomas Howell 1947-6-26 23312 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC185124  Calamagrostis nutkaensis David D. Keck 1948-6-29 5929 Sonoma 2 miles north of Fort Ross. 45 Comment
  UCD57517  Calamagrostis nutkaensis Alan A. Beetle 1945-8-4 4012 Sonoma 10 miles north of Fort Ross. Comment
  UCD57536  Calamagrostis ophitidis Beecher Crampton 1957-5-16 4039 Sonoma 3 miles SW of Cloverdale, Hot Springs Road. Comment
  CAS-BOT-BC273241  Calendula arvensis Rimo Bacigalupi 1946-2-1 s.n. Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UCD129661  Calendula arvensis Shirley C. Tucker 1965-2-7 s.n. Sonoma ca. 2 miles east of Sonoma. Comment
  UCD33564  Calendula arvensis Beecher Crampton 1970-3-12 8545 Sonoma Sonoma, 1st. Street West, just south of r.r. depot. Comment
  CAS-BOT-BC293759  Callitriche heterophylla var. heterophylla Peter Rubtzoff 1961-5-24 4611 Sonoma Upper Stemple Creek Marsh. Comment
  HSC100960  Callitriche marginata Peter Warner, Sarah Gordon 2011-5-16 199 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), 175 m E144 deg. S from swimming pool. 210 Comment
  CAS-BOT-BC331476  Callitriche trochlearis Peter Rubtzoff 1961-5-24 4604 Sonoma Upper Stemple Creek Marsh. Comment
  JEPS128202  Calochortus amabilis Roger Raiche 2000-5-4 066 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC483272  Calochortus amabilis Saichi Kawahara 1968-4-20 328 Sonoma Oak-Trinity Road, 1 mile northeast of Highway 12 152 Comment
  CAS-BOT-BC483286  Calochortus amabilis D. E. Breedlove 1980-6-27 44757 Sonoma Pepper wood Ranch west of Knights Valley Comment
  CAS-BOT-BC483293  Calochortus amabilis Charles H. Newman 1964-5-24 s.n. Sonoma Mayacamas Range, N.E. of Santa Rosa Comment
  CAS-BOT-BC483295  Calochortus amabilis Wayne Roderick 1967-4-28 s.n. Sonoma Cavedale Road, n. of Sonoma 304 Comment
  RSA177940  Calochortus amabilis Robert F. Thorne 1965-4-20 34360 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  SBBG57657  Calochortus amabilis H. E. and S. T. Parks 1930-5-9 605 Sonoma Alexander Valley Comment
  CAS-BOT-BC492630  Calochortus luteus Elsa G. Ruckert 1960-5-28 161 Sonoma Highway 12 1 mile from Trinity Road 243 Comment
  CAS-BOT-BC492637  Calochortus luteus James L. Reveal 1988-6-1 6971 Sonoma Along Geysers Road, 4.4 miles east-southeast of U.S. Highway 101 above Big Sulphur Creek, about 4 air miles northeast of Cloverdale, in sandy soil on a grassy flat associated with Quercus and Lupinus 243 Comment
  SD69996  Calochortus luteus Darley F. Howe 1968-5-21 Sonoma 7.7 miles on road east of Petaluma. Comment
  JEPS82297  Calochortus raichei Roger Raiche 1983-6-25 20424 Sonoma above Layton Mine (Austin Creek watershed); The Cedars, Austin Creek 365 Comment
  JEPS61740  Calochortus tolmiei Vina Krager 1849-4-26 Sonoma 15 mi from Duncan's Mills; Bodega Comment
  RSA0120932  Caltha palustris Peter Rubtzoff 1955-4-9 1768 Sonoma Forestville Marsh Comment
  CAS-BOT-BC270711  Calycadenia multiglandulosa A. D. E. Elmer 1903-6-1 4295 Sonoma Black Mountain Comment
  UC1971751  Calycadenia truncata R. L. Carr 1986-10-2 2262 Sonoma Mountain Home Ranch Road, ca. 75 yards W of Petrified Forest Road, 1.3 mi NE of Petrified Forest Lane, ca. 3.6 mi SW of Calistoga Comment
  JEPS78743  Calycanthus occidentalis Edward Lee 1936-6-7 2176 Sonoma Bohemian Grove, Trail No. 10 Comment
  UC854800  Calycanthus occidentalis Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
  UCD166583  Calycanthus occidentalis Dylan O. Burge 2016-8-20 2123 Sonoma Hooker Creek. 415 Comment
  CAS-BOT-BC91015  Calycanthus occidentalis Helen D. Geis 1902-8-1 s.n. Sonoma Unspecified. Comment
  JEPS64303  Calypso bulbosa Dorothea Gorter 1919-4-21 Sonoma near Cazadero Comment
  UC1134726  Calypso bulbosa E. Armstrong 1934-3-26 944 Sonoma 2 mi sw of Camp Meeker 121 Comment
  SD39361  Calypso bulbosa var. occidentalis Olive Peterson 1936-3-13 6840 Sonoma Bog, near Annopolis. Comment
  UCD138891  Calypso bulbosa var. occidentalis J. M. Tucker 1957-4-14 3291 Sonoma around 1/2 mile south of Highway 12, around 4 miles southeast of Guerneville. Comment
  CAS-BOT-BC215788  Calystegia macrostegia subsp. intermedia Greg de Nevers 1993-5-30 10458 Sonoma 3450 Franz Valley Road, Pepperwood Ranch Natural Preserve 457 Comment
  RSA289509  Calystegia purpurata Edward Lee 1936-6-7 2202 Sonoma South Ridge, Bohemian Grove. Comment
  CAS-BOT-BC224743  Calystegia purpurata subsp. saxicola Mary P. Wells 1981-7-2 s.n. Sonoma On road between Black Point and the Sea Ranch Lodge Comment
  JEPS128289  Calystegia subacaulis Roger Raiche 2008-5-18 005 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1123588  Calystegia subacaulis E. Armstrong 1934-3-26 938 Sonoma 4 miles N of Camp Meeker; Sebastopol Quad. Comment
  UCD125687  Calystegia subacaulis subsp. episcopalis Frederica Bowcutt 1996-5-24 2162 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Approx. 1.2 air miles S of Red Mountain. Adobe Canyon just NW of Sonoma/Rattlesnake Creek confluence. 365 Comment
  SEINET7075564  Camissonia ovata A. G. Vestal 1955-5-8 s.n. Sonoma South end of Bennett Mountain southeast of Santa Rosa. East Bennett Valley. 38? deg. 24' 31" North Latitude, -122? deg. 37' 52" West Longitude. UTM Zone 10, 532220mE, 4251005mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UC726605  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. A. Heller 1940-5-17 15626 Sonoma bluff n Bodega Bay Comment
  RSA135458  Campanula prenanthoides Volney Rattan 1877 Sonoma Guerneville. Comment
  RSA456184  Campanula prenanthoides Lester Rowntree 1931-7-15 s.n. Sonoma Stewart Pt. Skaggs Springs Road. Comment
  CHSC10119  Capsella bursa-pastoris S. N. Wiemeyer 1962-4-20 28 Sonoma 3/4 mile east of County Hospital along Chanate Rd. 121 Comment
  CAS-BOT-BC182782  Capsella bursa-pastoris Peter Rubtzoff 1974-5-19 7443 Sonoma Laguna de Santa Rosa east of Graton between Occidental and Guerneville Roads Comment
  CAS-BOT-BC37196  Capsella bursa-pastoris G. DeNevers 1981-5-2 923 Sonoma Pepperwood Ranch. In Pippindale Garden. Comment
  RSA786866  Capsella bursa-pastoris Carrie A. Herd 1982-3-14 19 Sonoma Crane Creek Regional Park, above Crane Creek Comment
  CAS-BOT-BC37767  Cardamine californica J. Clausen 1933-3-25 728 Sonoma About 4 miles east of Warfields on road to Oakville. 213 Comment
  CDA18771  Cardamine californica Boris Korotyaev 2000-3-28 s.n. Sonoma Northern California; Bodega Bay. 0 Comment
  UC10434  Cardamine californica F. T. Bioletti 1894-1 Sonoma Kenwood Comment
  RSA128603  Cardamine californica var. integrifolia P. H. Raven 1950-4-6 1558 Sonoma Cotati to Santa Rosa. 46 Comment
  UCD114519  Cardamine hirsuta John Thomas Howell 1946-3-31 21589 Sonoma Sonoma. Comment
  UCD151170  Cardamine oligosperma James A. Neilson Jr. 1974-3-27 3014 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  CAS-BOT-BC38031  Cardamine oligosperma Peter Rubtzoff 1959-6-20 4160 Sonoma Willow Creek Marsh. Bank of Willow Creek. Comment
  CAS-BOT-BC38036  Cardamine oligosperma G. DeNevers 1981-3-30 583 Sonoma Pepperwood Ranch. At Garrison House. Comment
  UC1795018  Carduus R. K. Brummitt, A. Wolf, and R. W. Howe 1998-5-15 19862 Sonoma 17 km NNE of Healdsburg, on Pine Flat Road near Red Hill 650 Comment
  CAS-BOT-BC281770  Carduus pycnocephalus Gordon H. True 1968-7-5 4668 Sonoma Point Reyes Bird Observatory ca 3 miles NW of Bolinas at Arroyo Hondo. Conium plot between Arroyo Hondo and entrance road 60 Comment
  UCR248965  Carex Peter Rubtzoff 1975-8-11 8313 Sonoma Kenwood Marsh 120 Comment
  CAS-BOT-BC334522  Carex abrupta Peter Rubtzoff 1957-6-28 3376 Sonoma Duncans Mills Marsh. Comment
  UCR248947  Carex athrostachya Peter Rubtzoff 1970-6-14 6260 Sonoma Marsh on River Road, c. 3 miles west of Fulton 27 Comment
  CAS-BOT-BC350810  Carex barbarae Peter Rubtzoff 1958-7-26 3800 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  RSA0037208  Carex barbarae Peter Rubtzoff 1976-5-30 8577 Sonoma Kenwood Marsh. Comment
  UCR248957  Carex barbarae Peter Rubtzoff 1958-5-3 3623 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC19568  Carex bolanderi Roxana S. Ferris; Laura Lorraine 1961-6-14 13539 Sonoma Joy Road grade, 1.8 mile from junction with Bodgea Highway. Comment
  RSA94269  Carex buxbaumii Peter Rubtzoff 1952-5-31 1108 Sonoma Pitkin Marsh, near Forestville, northern half of Lower Marsh Comment
  CAS-BOT-BC34423  Carex cusickii Peter Rubtzoff 1951-7-14 434 Sonoma Pitkin Marsh near Forestville. Southern half of Lower Marsh. Comment
  RSA94278  Carex cusickii Peter Rubtzoff 1951-7-14 434 Sonoma Pitkin Marsh, near Forestville. Southern half of lower marsh. Comment
  CAS-BOT-BC18981  Carex densa John Thomas Howell; J. W. Stacey 1937-6-6 13040 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC18986  Carex densa G. DeNevers 1981-6-15 1536 Sonoma Pepperwood Ranch. Along the stream down from the Rogers Apple Orchard. Comment
  CAS-BOT-BC20494  Carex densa Peter Rubtzoff 1960-6-9 4474 Sonoma Sonoma County Marshes. Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  CAS-BOT-BC320552  Carex feta Peter Rubtzoff; Tim Tunison 1976-6-5 8586 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC727688  Carex feta Milo S. Baker 1946-5-13 11391 Sonoma s end of Pitkin Marsh Vine Hill Region Comment
  UCD140352  Carex globosa Roxana S. Ferris; Laura Lorraine 1961-6-15 13556 Sonoma Green Valley Road 0.8 mi. E of junction with Harrison Grade Road. Comment
  CAS-BOT-BC20445  Carex globosa G. DeNevers 1981-4-4 661 Sonoma Pepperwood Ranch. High in 1st Canyon S of Pepperwood-Pippindale Gate on W side of Creek. Comment
  CAS-BOT-BC28367  Carex gracilior Peter Rubtzoff 1954-7-20 1500 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC28332  Carex gracilior Henry Nicholas Bolander 1864-4-1 3822 a Sonoma Meadow at Cloverdale. Comment
  UCD112361  Carex gracilior Peter Rubtzoff 1955-4-30 1794 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC328118  Carex gynodynama Peter Rubtzoff 1964-6-3 5348 Sonoma Bodega Bay Marsh. Comment
  SEINET3901419  Carex gynodynama Lewis S. Rose 1964-6-3 64053 Sonoma N end of Bodega Bay.; 0 2 Comment
  UCR248717  Carex gynodynama Peter Rubtzoff 1959-5-31 4085 Sonoma Freestone Marsh 79 Comment
  CAS-BOT-BC21904  Carex harfordii Peter Rubtzoff 1960-5-16 4355 Sonoma Duncan Mills Marsh. In upper portion of the marsh. Comment
  CAS-BOT-BC311836  Carex harfordii Peter Rubtzoff 1974-6-2 7513 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC320579  Carex harfordii Peter Rubtzoff 1962-6-1 4867 Sonoma Freestone Marsh. Comment
  UCR248914  Carex harfordii Peter Rubtzoff 1962-6-1 4861 Sonoma Freestone Marsh 79 Comment
  CAS-BOT-BC21912  Carex harfordii Peter Rubtzoff 1951-6-9 166 Sonoma The Pitkin Marsh, near Forestville. A damp opening south of the upper marsh. Comment
  UCR248725  Carex hassei Peter Rubtzoff 1962-5-11 4819 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  UCR249356  Carex hendersonii Peter Rubtzoff 1957-6-28 3387 Sonoma Duncan Mills Marsh 2 Comment
  CAS-BOT-BC31173  Carex lemmonii John Thomas Howell 1945-5-30 20889 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC31178  Carex lemmonii Peter Rubtzoff 1951-6-16 235 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC329276  Carex leptopoda Peter Rubtzoff 1960-5-16 4359 Sonoma Duncans Mills Marsh. Comment
  UCR248866  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncan Mills Marsh 2 Comment
  UC1508  Carex nudata H. N. Bolander Apr 1864 3812 Sonoma Mark West Creek Comment
  SEINET10711633  Carex nudata Prouty 1980-4-12 PROUTY 122 Sonoma T8N, R7W, sec. 8 Porter Creek Rd., .1 mi. west of the junction with Petrified Forest Rd. Mixed Evergreen, south side of road along Porter Creek. 256 Comment
  UC1100482  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-1 1111 Sonoma 2 mi e Stewart's Point (on road to Geyserville) Comment
  CAS-BOT-BC119310  Carex obnupta Mary P. Wells 1981-8-2 s.n. Sonoma S end of Timber Ridge Road, The Sea Ranch. Comment
  CAS-BOT-BC119317  Carex obnupta P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  RSA0025195  Carex obnupta Peter Rubtzoff 1958-5-17 3658 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Rd.) Comment
  CAS-BOT-BC119278  Carex ovalis Peter Rubtzoff 1951-6-17 265 Sonoma Pitkin Marsh, near Forestville. Eastern Branch of the Upper Marsh. Comment
  JEPS117098  Carex pachystachya Peter Warner 2010-7-7 170 Sonoma Jenner Headlands, Middle Pasture, ~ 565 m, S 223 deg W of residence house Comment
  CHSC98667  Carex serratodens Thomas W. Nelson; Jane P. Nelson 1986-5-11 8049 Sonoma North Coast Ranges. Along Geyserville-Stewardspoint road 3 miles west of bridge over Dry Creek. Comment
  UCR248926  Carex serratodens Peter Rubtzoff 1957-5-11 3341 Sonoma Occidental Marsh Comment
  CAS-BOT-BC329282  Carex stipata Peter Rubtzoff 1960-5-22 4410 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville roads). Comment
  CAS-BOT-BC116927  Carex subbracteata Peter Rubtzoff 1959-6-13 4124 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC115529  Carex tumulicola Joseph Whipple Congdon 1880-5-31 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC281916  Carthamus lanatus Peter H. Raven; R. Snow 1958-7-23 13684 Sonoma Near a farm above Wolf Creek, along road to Stewart's Point, 15.5 miles W of Skaggs Springs Comment
  CDA6988  Carthamus lanatus T. C. Fuller 1970-9-29 19804 Sonoma North side of Valley Ford Road, 6 miles west of Petaluma. 0 Comment
  HSC33347  Carthamus lanatus William J. Ferlatte, J. Shelgren 1973-7-11 1489 Sonoma SE of Santa Rosa; Crane Canyon, 1 mile E of Petaluma Hill Rd. 52 Comment
  CDA7002  Carthamus leucocaulos T. C. Fuller 1970-5-4 19484 Sonoma 2 miles west of the overpass, Highway 101, Asti. 0 Comment
  SEINET9362144  Carthamus leucocaulos Unknown 1978-8-17 20253 Sonoma 12 plants in a line along the inner face of dam at edge of water cutting action, 1.6 km W of freeway exit, hwy 101, Asti. Botany 102, Botany Department, University of California, Davis. Comment
  JEPS74987  Castilleja ambigua subsp. ambigua T. I. and F. M. Chuang 1975-7-5 7518 Sonoma s side Pitkin Marsh Comment
  UCD15832  Castilleja attenuata K. Mawdsley 1998-5-10 30 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Bald Mountain Trail, east of junction with Lower Bald Mountain Trail. 548 Comment
  HSC103519  Castilleja densiflora Thomas W. Nelson, Jane Nelson 1981-5-3 6463 Sonoma Along Pressley Rd., ~ 1 mi. N of junction with Roberts Rd. Comment
  UCD151301  Castilleja foliolosa James A. Neilson Jr. 1974-7-26 2865 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  SEINET12320784  Castilleja foliolosa W. Knight, Knight, I. 1981-1 3970 Sonoma 2.3 mi up Cavedale Rd from jct of CA 12 Comment
  OBI60005  Castilleja lacera Joseph Andorfer Ewan 1935-5-13 9250 Sonoma Along low places of RR right-of-way. Wright school on Sebastopal rd Comment
  SEINET10582686  Castilleja roseana Rimo Bacigalupi 1956-5-30 Bacigalupi 5667 Sonoma Along and just above creek-bed, headwaters of Big Austin Creek, vicinity of "The Cedars", near Layton chromite mine. 267 Comment
  SEINET236310 Image available Castilleja rubicundula Richard J. Shaw 1963-6-10 1297 Sonoma Highway 1 across the street from Arch Rock Beach. Comment
  CAS-BOT-BC241091  Castilleja uliginosa Peter Rubtzoff; L. R. Heckard 1971-6-10 6534 Sonoma Pitkin Marsh, near Forestville. Near the southern end of the upper part of the marsh Comment
  CAS-BOT-BC32577  Castilleja uliginosa John Thomas Howell 1937-6-6 13031 Sonoma Pitkin Marsh Comment
  UC1191869  Castilleja uliginosa Herbert L. Mason 1946-7-4 12892 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  JEPS35564  Castilleja wightii L. R. Heckard 1964-6-12 1390 Sonoma about 1 mi s Bodega Bay (town) (beach between highway and Bodega Bay) Comment
  UC1374936  Castilleja wightii Noel H. Holmgren and Liew Fah Seong 1969-6-23 3607 Sonoma by entrance Shell Beach (Calif Hwy 1, 18.6 mi n of Marin County line) Comment
  UC473463  Castilleja wightii John Thomas Howell 1930-6-27 5412 Sonoma 4 mi n Bodega Bay Comment
  CAS-BOT-BC195605  Catapodium rigidum G. DeNevers 1981-7-19 1761 Sonoma Garrison yard Comment
  CAS-BOT-BC366948  Caulanthus lasiophyllus Greg de Nevers 1997-4-16 10945 Sonoma Moon Mountain Road Area burned Sept. 1996 Comment
  CAS-BOT-BC47801  Ceanothus John Thomas Howell 1937-4-11 12900 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC47806  Ceanothus W. R. Dudley 1896-9-18 s.n. Sonoma Between Sea View and Plantation House Comment
  CAS-BOT-BC48514  Ceanothus confusus Alice Eastwood 1923-5-9 11749 Sonoma Mt. St. Helena Comment
  UC1281313  Ceanothus confusus H. E. McMinn 1941-4-27 5322 Sonoma Rincon Ridge Comment
  SEINET12211129  Ceanothus confusus Unknown 1985-1 50178 Sonoma W of Healdsburg, Dry Cr. Valley, N of Dorman Cyn 244 Comment
  CAS-BOT-BC49197  Ceanothus cuneatus Walter Knight; Irja Knight 1963-12-27 477 Sonoma Summit, Pine Flat Rd. Comment
  SEINET12211126  Ceanothus divergens W. Knight, Knight, I.; Edwards, S. 1984-1 5386 Sonoma Kortum canyon Road Comment
  UC909729  Ceanothus divergens Milo S. Baker 1950-5-20 12226 Sonoma Coleman Ranch summit above; Hope Valley Comment
  RSA339387  Ceanothus divergens subsp. confusus Roger Raiche 1985-11-28 50897 Sonoma W of Cloverdale, Red Mt. betw Hot Springs Road and cherry Creek Road. 378 Comment
  POM136437  Ceanothus foliosus A. A. Heller, H. E. Brown 1902-5-29 s.n. Sonoma Mt. Hood. Comment
  UC1299554  Ceanothus foliosus Freed W. Hoffman 1947-5-30 522 Sonoma Layton Mine, Austin Creek North Coast Ranges Comment
  POM126433  Ceanothus foliosus H. P. Chandler 1907-4-27 7544 Sonoma St. Helena to Santa Rosa via spring Mt. Comment
  SEINET11191419  Ceanothus foliosus subsp. foliosus C. L. Schmidt 1987-2-27 1135 Sonoma 4 miles up Cavedale from CA-12, Hooker Canyon. 500 Comment
  CAS-BOT-BC64419  Ceanothus foliosus subsp. vineatus John Thomas Howell 1941-4-5 16173 Sonoma Raven Ridge. Comment
  CAS-BOT-BC64422  Ceanothus foliosus subsp. vineatus W. R. Hildreth 1967-10-3 1071 Sonoma Vine Hill School rd., ca. 1/2 mi. e. of Vine Hill Road. Comment
  UC1084483  Ceanothus foliosus var. vineatus G. Thomas Robbins 1938-4-15 257 Sonoma along road to Occidental W q Green Valley. Comment
  CAS-BOT-BC49999  Ceanothus gloriosus Milo S. Baker 1935-4-1 8030 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50010  Ceanothus gloriosus Milo S. Baker 1935-4-1 8029 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC870562  Ceanothus gloriosus John Thomas Howell 1934-3-3 11742 Sonoma 8 miles S of Stewart's Point Comment
  CAS-BOT-BC49946  Ceanothus gloriosus var. exaltatus John Thomas Howell 1935-5-5 12624 Sonoma Kenwood Comment
  CAS-BOT-BC49951  Ceanothus gloriosus var. exaltatus Roman Gankin 1966-3-3 694 Sonoma east of Occidental Ridge on Graton Road, ca. 2.5 miles east of Occidental Comment
  UC912378  Ceanothus gloriosus var. exaltatus Herbert L. Mason 1931-3-7 5802 Sonoma Vine Hill School, 12 miles west of Santa Rosa. Comment
  RSA136660  Ceanothus griseus A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross. Comment
  UC1070747  Ceanothus incanus H. S. Yates 1934-4-21 3782 Sonoma Near Freestone 60 Comment
  SACT002923  Ceanothus incanus Josephine Van Ess 1982-7-21 Sonoma Collected at Mount Mill House Girl Scout Camp. Open area in forest. Medium size shrubs. White flowers. Comment
  CAS-BOT-BC50954  Ceanothus integerrimus James McMurphy 1909-5-29 s.n. Sonoma Grade between Black Mountain and Geyser Mountain Comment
  RSA1120  Ceanothus integerrimus var. californicus B. D. Stark, H. E. McMinn 1929-7-22 1380 Sonoma Sonoma-Mendocino County line. Comment
  UC1193312  Ceanothus jepsonii P. Zinke 1949-6-14 64 Sonoma Divide between Dry Creek and Smith Creek Quad. 61A3 457 Comment
  UCD168054  Ceanothus jepsonii James Neilson 1978-6-9 3964 Sonoma Mayacmas Mountains, Shell Well Site E. Bear Ridge. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site E was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  SACT002940  Ceanothus jepsonii J. Mensch 1963-4-10 Sonoma 15 miles east of Stewarts Point on road from Geyserville. Comment
  UCD160147  Ceanothus oliganthus var. sorediatus James A. Neilson Jr. 1974-4-24 2717 Sonoma Mayacmas Mountains, Squaw Creek drainage, at site of geothermal well Ottoboni 17. (Exact location of Ottoboni 17 unknown; this record is georeferenced along Ottoboni Ridge Road in The Geysers; elevation estimated by label-maker). 967 Comment
  CAS-BOT-BC51874  Ceanothus parryi F. T. Bioletti 1892-1-1 226 Sonoma unspecified Comment
  RSA0084060  Ceanothus parryi D. C. Michener 1982-7-26 4122 Sonoma Openings in mixed evergreen forest along lBohemian Hwy, 1.8miles N of jct with Graton road, 4.8 miles S of jct with 116 in Monte Rio Comment
Read comments Oct 9 2018
  SJSU14042  Ceanothus parryi C. L. Schmidt 1986-4-11 1109 Sonoma Trinity Rd, 1.5 mi E of Hwy 12 198 Comment
  UC1071243  Ceanothus parryi A. Lewis 1932-5-14 77 Sonoma Calabasas Creek Napa Quadrangle 457 Comment
  UCD166541  Ceanothus parryi Dylan O. Burge 2016-2-16 2042 Sonoma Gilfillian Vineyard, roadside on Cavedale Road. 400 Comment
  RSA301114  Ceanothus parryi D. C. Michener 1982-7-26 4121 Sonoma Graton road 5.6 miles W of RR xing in Graton, 0.2 miles E of jct with Bohemian Hwy Comment
  SEINET12210605  Ceanothus parryi W. Knight, Knight, I. 1981-1 3968 Sonoma 2.3 mi up Cavedale Road from junction of State Route #12 Comment
  SDSU10296  Ceanothus parvifolius D. F. Howe 1972-4-28 4811 Sonoma Trinity Road, Mt. Hood Range. 396 Comment
  CAS-BOT-BC83740  Ceanothus sonomensis D. O. Burge; Steven Kembel 2008-5-29 1002 b Sonoma Sonoma Mountains, Annadel State Park 330 Comment
  SBBG26768  Ceanothus sonomensis J. T. Howell 1935-5-5 Sonoma Triniti Mtn 2 mi NE of Glen Ellen Comment
  SD88410  Ceanothus sonomensis D. F. Howe 1972-4-28 Sonoma Trinity Road, Mt. Hood Range 395 Comment
  SEINET12210794  Ceanothus sonomensis W. Knight, Knight, I. 1982-1 4676 Sonoma Tilden Botanic Garden, Berkeley Comment
  SEINET12210980  Ceanothus sonomensis W. Knight, Knight, I.; Howell, J. T. 1984-1 5076 Sonoma Cavedale Road., near Macnab cypresses 640 Comment
  CAS-BOT-BC52347  Ceanothus thyrsiflorus Mary P. Wells 1985-9-13 654 Sonoma Forest no. of junction of Timber Ridge and Longmeadow Roads, The Sea Ranch Comment
  JEPS86737  Centaurea calcitrapa Jack and Betty Guggolz 1990-10-7 1099 Sonoma pasture at the highest point s of N. Gilchrist Road and e of Highway 16 N. Gilchris Road 60 Comment
  UC397072  Centaurea iberica Grace M. Cole 1929-7-29 Sonoma Santa Rosa Comment
  UC66150  Centaurium muehlenbergii A. A. Heller 1902-6-28 5793 Sonoma near Mark West Springs Comment
  CAS-BOT-BC271550  Centromadia parryi subsp. rudis Walter Knight; Irja Knight 1985-9-23 5181 Sonoma Lower Tubbs Island about 1/4 mile from San Pablo Bay 0 Comment
  CAS-BOT-BC251311  Cerastium Peter Rubtzoff 1959-6-20 4155 Sonoma Willow Creek Marsh. Comment
  UCD160129  Cerastium fontanum subsp. vulgare James A. Neilson Jr. 1973-6-6 2956 Sonoma Mayacmas Mountains. The Geysers. Site IV A. (Exact location of Site IV A unknown. Elevation and coordinates estimated as near Site IV G by label maker.) 731 Comment
  SEINET7067242  Cerastium glomeratum A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head. Coordinate datum: NAD27. Comment
  UCD98035  Cerastium glomeratum Daehler; Lu 1993-5-8 255 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 371 Comment
  UCD98054  Cerastium glomeratum Caitlin Lewis; William Mutch 1993-4-17 s.n. Sonoma about 40 air miles N of San francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. In Adobe Canyon, N of Sugarloaf Ridge and S of Red Mtn. 1 mile. Near visiter center. 365 Comment
  UC1127922  Cercocarpus betuloides var. betuloides E. Armstrong 1934-3-26 910 Sonoma 1 mi nw of Camp Meeker 121 Comment
  UC31015  Chaenactis glabriuscula var. heterocarpha H. N. Bolander 1864-1 3953 Sonoma at the Geysers Old Pine Mt.; Pine Mt., at the Geysers, Sonoma Co. Comment
  UC1278119  Chamaemelum fuscatum B. Crampton 1955-3-14 2319 Sonoma Italian-Swiss Colony Winery, Asti Comment
  CAS-BOT-BC279789  Chamaemelum fuscatum P. A. Munz 1952-3-23 17351 Sonoma Along highway 2 miles south of Asti Comment
  RSA79015  Chamaemelum fuscatum P. A. Munz 1952-3-23 17351 Sonoma 0.5 mile among Vines in vineyard, 2 miles S of Asti Vineyard (Italian Swiss Colony). Comment
  UCD35265  Chamaemelum fuscatum Beecher Crampton 1955-3-14 2319 Sonoma Asti. Comment
  UCD167959  Chamaesyce maculata James Neilson 1981-7-16 4051 Sonoma Mayacmas Mountains. Big Sulphur Cr. At bridge crossing road to Cloverdale. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1299768  Cheilanthes intertexta Freed W. Hoffman April 1948 2752 Sonoma near Guerneville (Gabe's Rock, Poole Ridge); North Coast Ranges Comment
  CAS-BOT-BC166903  Chenopodium Peter Rubtzoff 1973-10-10 7340 Sonoma Tributary of Americano Creek, 2 miles west of Bloomfield. Comment
  JEPS54472  Chenopodium ambrosioides Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9317 Sonoma near Pitkin family farmhouse; Pitkin Marsh 53 Comment
  CAS-BOT-BC493399  Chlorogalum pomeridianum Roxana S. Ferris; Laura Lorraine 1961-6-14 13527 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  POM169099  Chlorogalum pomeridianum var. pomeridianum A. A. Heller 1902-6-27 5781 Sonoma West of Windsor near Russian river. Comment
  OBI35907  Chloropyron maritimum subsp. palustre David J. Keil 1983-6-29 17193 Sonoma Doran Beach Co Park. Bodega Head Comment
  CAS-BOT-BC246321  Chloropyron maritimum subsp. palustre John Thomas Howell 1955-8-6 30895 Sonoma On west side of Bodega Bay Comment
  CAS-BOT-BC191508  Chorizanthe cuspidata var. villosa Lewis S. Rose 1962-8-6 s.n. Sonoma Bodega Comment
  CAS-BOT-BC257027  Chorizanthe membranacea Anna F. Rodda 1929-5-6 s.n. Sonoma Geyserville Comment
  CAS-BOT-BC257011  Chorizanthe membranacea H. N. Bolander 1860-1-1 3959 Sonoma At the geysers Comment
  RSA0045165  Chorizanthe polygonoides var. polygonoides Greg de Nevers 1993-4-27 10410 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. East of 3865 Franz Valley Road. 91 Comment
  POM289615  Chrysanthemum segetum Lyman Benson 1934-8-30 6132 Sonoma Bodega Bay, Seaward N Coast Mt. Range, Pacific Ocean Watershed 30 Comment
  RSA8361  Chrysanthemum segetum L. S. Rose 1933-5-9 33154 Sonoma Bodega Bay. Comment
  SEINET7067231  Chrysanthemum segetum A. G. Vestal 1947-5-12 s.n. Sonoma About 3 miles east of Bodega Bay. Coordinate datum: NAD27. UTM Zone 10, 500177mE, 4243446mN. Comment
  UCR249045  Cirsium Peter Rubtzoff 1960-9-14 4547 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  CAS-BOT-BC284428  Cirsium brevistylum John Thomas Howell 1930-6-8 5277 Sonoma 8 miles n. of Bodega Bay Comment
  POM53745  Cirsium douglasii var. breweri A. A. Heller 1902-7-2 5804 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  SEINET10615512 Image available Cirsium douglasii var. canescens A. Arthur Heller 1902-7-2 Heller 5804 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  CAS-BOT-BC280000  Cirsium douglasii var. douglasii H. D. Ripley; R. C. Barneby 1945-6-22 6949 Sonoma Bodega Bay 6 Comment
  OBI16748  Cirsium douglasii var. douglasii Robert F. Hoover 1966-7-17 9914 Sonoma Sausal Crk N of Alexander Valley Comment
  CAS-BOT-BC285703  Cirsium occidentale var. occidentale Alice Eastwood 1915-6-29 4889 Sonoma Bodega Point Comment
  CAS-BOT-BC285705  Cirsium occidentale var. occidentale John Thomas Howell 1930-6-8 5251 Sonoma 1 mile east of Bodega Bay Comment
  CAS-BOT-BC285708  Cirsium occidentale var. occidentale Walter Knight; Irja Knight 1963-8-13 163 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC280372  Cirsium occidentale var. venustum F. G. Krauss 1893-10-8 s.n. Sonoma Krauss Ranch Comment
  CDA1485  Cirsium occidentale var. venustum T. C. Fuller 1958-5-24 4004 Sonoma 1.5 mi. N of Camp Meeker. 0 Comment
  UC30833  Cirsium occidentale var. venustum F. T. Bioletti 1892-7-24 Sonoma Glen Ellen Comment
  CAS-BOT-BC280539  Cirsium quercetorum John Thomas Howell 1938-7-3 13953 Sonoma Stony Point Comment
  CAS-BOT-BC285752  Cirsium remotifolium John Thomas Howell 1937-7-4 13070 Sonoma Near Petrified Forest Comment
  SBBG7970  Cirsium scariosum var. citrinum H. and M. Dearing 1939-5-14 3370 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC285898  Cirsium vulgare John Thomas Howell 1930-6-8 5286 Sonoma 8.5 miles n. of Bodega Bay Comment
  CAS-BOT-BC285895  Cirsium vulgare Peter Rubtzoff 1951-8-4 568 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  UCD165170  Clarkia Peter Rubtzoff 1974-5-26 7498 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC251250  Clarkia Peter Rubtzoff 1974-5-26 7498 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  UC1541515  Clarkia amoena H. E. and S. T. Parks 1930-5-10 606 Sonoma Knights Valley 152 Comment
  CAS-BOT-BC161055  Clarkia amoena subsp. amoena C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  CAS-BOT-BC161058  Clarkia amoena subsp. amoena C. M. Hoak 1912-8-1 s.n. Sonoma Monte Rio Comment
  UC112987  Clarkia amoena subsp. amoena Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  CAS-BOT-BC161053  Clarkia amoena subsp. amoena John Thomas Howell 1930-7-27 5410 Sonoma 8 miles south of Fort Ross Comment
  CAS-BOT-BC161060  Clarkia amoena subsp. amoena H. Lewis; M. Lewis 1947-6-15 436 Sonoma Highway 1, Bodega Bay at west road to Doran Park Comment
  UC1181828  Clarkia amoena subsp. huntiana H. Lewis and M. Lewis 1951-7-10 866 Sonoma 4.0 mi w Mark West Springs Comment
  CAS-BOT-BC163514  Clarkia amoena subsp. huntiana Walter Knight; Irja Knight 1963-8-13 197 Sonoma Corner Roblar & Steinbeck Rds Comment
  CAS-BOT-BC172205  Clarkia concinna A. A. Heller 1902-6-26 5776 Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  CAS-BOT-BC172208  Clarkia concinna C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  UCR115038  Clarkia concinna G. Fred Hrusa, H. Townsend 1994-5-2 11873 Sonoma Gilliam Creek, canyo immediately downslope of Bullfrog Pond Campground Comment
  CAS-BOT-BC172203  Clarkia concinna Wayne Roderick 1967-6-18 s.n. Sonoma Mark West Springs Road, n.e. of Santa Rosa 60 Comment
  JEPS43617  Clarkia concinna subsp. concinna Vina W. Krager 1924-5-18 Sonoma Bodega Comment
  UC1299414  Clarkia concinna subsp. concinna Freed W. Hoffman 1947-5-18 539 Sonoma Dutch Bill Creek North Coast Ranges Comment
  UC725785  Clarkia concinna subsp. concinna A. A. Heller 1940-5-10 15600 Sonoma near Fort Ross Comment
  UCD104045  Clarkia davyi Frederica Bowcutt 1984-6-23 417 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1, N of Gerstle Cove about 1/8 mile. 15 Comment
  UCD160114  Clarkia gracilis James A. Neilson Jr. 1973-6-3 2970 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  SBBG4971  Clarkia gracilis H. and M. Dearing 1939-5-14 3344 Sonoma near Healdsburg Comment
  CAS-BOT-BC162511  Clarkia gracilis subsp. gracilis G. DeNevers 1981-5-9 1032 Sonoma Pepperwood Ranch, just above the old Strebel Homestead Comment
  JEPS25145  Clarkia gracilis subsp. sonomensis G. Thomas Robbins 1959-5-16 4015 Sonoma Spring Mt. Road Mayacamas Mt. (between Calistoga Road and Sonoma-Napa County line) 487 Comment
  UC20298  Clarkia gracilis subsp. sonomensis Alice King June, 1897 Sonoma Healdsburg Comment
  POM187553  Clarkia gracilis subsp. sonomensis Marcus E. Jones 1931-7-5 s.n. Sonoma Cloverdale Comment
  RSA125115  Clarkia gracilis subsp. sonomensis Peter H. Raven 1958-7-23 13686 Sonoma 8.3 miles east of Skaggs Springs on the road to Stewarts Point Comment
  RSA449288  Clarkia gracilis subsp. sonomensis Christopher Davidson 1977-6-20 6004 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  CAS-BOT-BC163464  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-6-5 4610 Sonoma Petrified Forest along road Comment
  UCD104919  Clarkia purpurea subsp. quadrivulnera Frederica Bowcutt 1996-5-24 2159 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma/Rattlesnake Creek confluence on small knoll. 381 Comment
  JEPS43668  Clarkia rhomboidea Eleanor Armstrong 1932-5-18 488 Sonoma 3 mi w Kenwood; Adobe Canyon 152 Comment
  POM32298  Clarkia unguiculata A. A. Heller 1902-6-11 5686 Sonoma Santa Rosa creek, E of Santa Rosa Comment
  JEPS128336  Claytonia exigua Roger Raiche 2010-2-28 009 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS128323  Claytonia gypsophiloides Roger Raiche 2000-3-11 004 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  UCD33223  Claytonia gypsophiloides Beecher Crampton 1967-5-15 7924 Sonoma Lytton. Comment
  RSA304000  Claytonia gypsophiloides J. R. Shevock 1972-3-28 1486 Sonoma Road bank Hwy 128, N. of Cloverdale. 91 Comment
  CDA34795  Claytonia perfoliata Peter Warner 2010-3-29 122 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  HSC17700  Claytonia perfoliata F. Demostene 1966-4-2 11 Sonoma 2 mi. E of Healdsburg Comment
  RSA620423  Claytonia sibirica Peter Rubtzoff 1964-7-3 5340 Sonoma Sonoma County: Bodega Bay Marsh Comment
  UCD55149  Collinsia heterophylla Ellen Dean; Tammie Beyerl 2006-4-28 3031 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Hills to the east, near center of property. 260 Comment
  HSC20622  Collinsia sparsiflora R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1335 Sonoma At Big Geysers Comment
  JEPS34522  Collinsia sparsiflora var. arvensis Freed W. Hoffman 1947-3-16 828 Sonoma near Guerneville (rd to Austin Ranch, headwaters of Fife Creek); North Coast Ranges Comment
  UCD151166  Collinsia sparsiflora var. sparsiflora James A. Neilson Jr. 1974-3-27 3016 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  CAS-BOT-BC361353  Collomia heterophylla Greg de Nevers 1997-4-24 10957 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC506653  Collomia heterophylla Ann Howald 2015-4-28 3373 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 11.5 mi W of jct with Rockpile Rd, Warm Springs drainage 408 Comment
  UCR265087  Collomia heterophylla Ann Howald 2015-4-28 3373 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 11.5 miles west of intersection with Rockpile Rd, Warm Springs drainage 408 Comment
  CAS-BOT-BC230698  Collomia rawsoniana Walter Knight; Irja Knight; Tiffany Knight 1985-7-15 5144 Sonoma From garden of Knight, Petaluma Comment
  RSA0051273  Convolvulus Greg de Nevers 1993-5-9 10440 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Just above the Pippindale-Pepperwood gate. 100 Comment
  OBI23312  Convolvulus arvensis Jim Rogers 1972-7-16 6 Sonoma Comment
  NY318907  Convolvulus saxicola A. Eastwood 1900-7-4 Sonoma Bodega Point Comment
  JEPS128187  Conyza canadensis Roger Raiche 1999-8-28 027 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SBBG32433  Cordylanthus pilosus L. S. Rose 1956-8-20 56152 Sonoma Rincon Ridge, E of Santa Rosa 91 Comment
  JEPS33001  Cordylanthus pilosus subsp. pilosus Freed W. Hoffman 1946-8-14 783 Sonoma near serpentine island e Camp Meeker; North Coast Ranges Comment
  JEPS82263  Cordylanthus pringlei Roger Raiche 1983-8-6 30586 Sonoma near old mine buildings (headwaters of creek); Austin Creek, The Cedars, Laton Mine Comment
  JEPS16345  Cordylanthus tenuis subsp. capillaris H. L. Mason 1946-7-4 12900 Sonoma 2 mi e Occidental; ; E of Occidental, Sonoma Co. Comment
  JEPS62600  Cordylanthus tenuis subsp. capillaris T. I. Chuang with Fei-Mei Chuang 1970-7-25 6834 Sonoma 2.7 mi ne Occidental (Stoetz Road, w of Harrison grade) Comment
  JEPS69348  Cordylanthus tenuis subsp. capillaris Tsan-Iang Chuang, F. M. Chuang and Carl Chuang 1972-7-22 7081 Sonoma 2 mi nw Camp Meeker (on way to Monte Rio) Comment
  OBI9577  Cordylanthus tenuis subsp. capillaris Robert F. Hoover 1965-1 Sonoma Comment
  CAS-BOT-BC368068  Cornus Greg de Nevers 1998-5-25 11266 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At the caves 400 Comment
  CAS-BOT-BC212287  Cornus glabrata Peter Rubtzoff 1952-5-31 1112 Sonoma South of the Upper Pitkin Marsh near Forestville Comment
  JEPS50119  Cornus glabrata W. L. Jepson 1921-9-12 9488 Sonoma Alexander Valley 45 Comment
  RSA223352  Cornus glabrata Peter Rubtzoff 1958-8-9 3861 Sonoma Laguna de Santa Rosa north of Sebastopol near Occidental Road. Comment
  RSA0045166  Cornus nuttallii Greg de Nevers 1993-4-27 10414 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. Along Franz Creek east of 3865 Franz Valley Rd. 91 Comment
  CAS-BOT-BC210473  Cornus sericea subsp. occidentalis A. A. Heller 1902-7-1 5796 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC180190  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1963-9-15 296 Sonoma Los Alamos Rd., Santa Rosa Comment
  CHSC118276  Cotoneaster franchetii Barbara L. Wilson 2015-9-22 18824 Sonoma Santa Rosa, Howarth Lake. 71 Comment
  CAS-BOT-BC143501  Cotoneaster pannosus Mary P. Wells 1989-2-13 975 Sonoma At curve of Montecito Ave. opposite Manzanita Ave., Rincon Ridge, Santa Rosa Comment
  CAS-BOT-BC290299  Cotula coronopifolia Walter Knight; Irja Knight 1963-8-13 203 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC173671  Cotula coronopifolia Peter Rubtzoff 1959-6-6 4101 Sonoma Willow Creek Marsh. Comment
  SD206992  Crassula Reid Moran, J. Vale 1989-5-3 Sonoma Sonoma Valley Regional Park; E of Glen Ellen. Comment
  UC1299210  Crocanthemum scoparium var. vulgare Freed W. Hoffman 1947-7-30 1412 Sonoma near Guerneville; North Coast Ranges, Mt. Jackson Comment
  CDA37889  Crupina vulgaris CDFA Staff s.n. Sonoma Santa Rosa. 0 Comment
  CDA4479  Crupina vulgaris K. M. Stocking 1976-6-27 Sonoma Southeast of Bennett Valley golf course. City of Santa Rosa land, Santa Rosa . 0 Comment
  CAS-BOT-BC190184  Crypsis vaginiflora Peter Rubtzoff 1971-8-9 6631 Sonoma Laguna, Chileno Valley. Comment
  UC353795  Cryptantha intermedia Milo S. Baker 1928-6-26 3043 b Sonoma n of Barber Ranch; Hope Valley Comment
  UC1731386  Cryptantha milobakeri Dean W. Taylor 1998-6-22 16683 Sonoma 0.3 mi along ridge from Eagle Rock Substation ((ridge dividing Bear Canyon from Squaw Cr.)); North Coast Ranges, Mayacamas Mountains, The Geysers Geother 792 Comment
  UC1731388  Cryptantha torreyana Dean W. Taylor 1998-6-22 16688 Sonoma 0.3 mi along ridge from Eagle Rock Substation ((ridge dividing Bear Canyon from Squaw Cr.)); North Coast Ranges, Mayacamas Mountains, The Geysers Geother 792 Comment
  CDA12255  Cupressus macnabiana G. F. Hrusa, J. M. Tucker, G. L. Webster 1994-10-29 11921 A Sonoma North Coast Biodiversity Arena; Grove of small trees to 10 meters tall on Cavedale Rd. approx. 2.7 m E of Hwy 12. Rhyolitic ash substratum, assoc. w/ Pinus attenuata, Arctostaphylos stanfordiana, Salvia sonomensis, Solidago spathulata, Xerophyllum tenax. Comment
  RSA178043  Cupressus macnabiana Robert F. Thorne 1965-4-20 34367 Sonoma Head of Hooker Canyon on Cavedale Road, north of Sonoma 610 Comment
  CAS-BOT-BC85469  Cupressus sargentii Elmer Ivan Applegate 1934-3-25 8859 Sonoma Pine Flat region, west slope of the Mayacama mts. Comment
  UCD132950  Cupressus sargentii Frederica Bowcutt 1997-7-18 2187 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  CAS-BOT-BC85456  Cupressus sargentii Milo Samuel Baker 1929-1-2 3383 d Sonoma 2 or 3 mi. north of Mill Cr. Along trail from Cooper's Ranch Comment
  NY16795  Cupressus sargentii C. B. Wolf 1934-10-13 6184 Sonoma 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
  SEINET11739342  Cupressus sargentii F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -166 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC182776  Cuscuta pentagona Peter Rubtzoff 1975-8-15 8321 Sonoma Laguna, Chileno Valley. Comment
  CDA39985  Cuscuta subinclusa Mary-Jean Sawyer 2008-7-3 PDR# 1544920 Sonoma Sears Pt. Dr., on Hwy 37 X Hwy 121, On side of road down to waters edge, near Tolby Creek. 0 Comment
  SEINET176301 Image available Cynodon dactylon var. dactylon M. E. Jones 1882-7-18 Sonoma Duncan's Mills Comment
  UCR248769  Cynodon transvaalensis Peter Rubtzoff 1970-9-13 6385 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville) 13 Comment
  SEINET12329972  Cynoglossum grande F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -192 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  CAS-BOT-BC331482  Cynosurus Peter Rubtzoff 1969-8-29 6165 Sonoma Along Salmon Creek, ca. 0.5 miles upstream from Highway #1. Comment
  CAS-BOT-BC190473  Cynosurus echinatus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53954 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 Comment
  CAS-BOT-BC190475  Cynosurus echinatus Roxana S. Ferris; Laura Lorraine 1948-6-9 11663 Sonoma 11 miles from Geyserville on road to Kellogg. Comment
  JEPS27965  Cynosurus echinatus Rimo Bacigalupi and L. R. Heckard 1961-6-9 7743 Sonoma about 3/4 mi nw Occidental School (just below serpentine area along Stoetz Lane ca 1/2 mi nw of its junction w/Harrison Grade rd, nr reservoir at head North Fork of Lancel Creek); head of North Fork of Lancel Creek 222 Comment
  CAS-BOT-BC114773  Cyperus acuminatus Gregory Clark de Nevers 1981-6-6 1493 Sonoma At the marshy spring on the S slope of Telegraph Hill E of the road, above cow trough. Comment
  UC1103633  Cyperus eragrostis Joseph P. Tracy 1947-10-6 17939 Sonoma Mayacama Creek below Knights Valley; Mayacama Creek 152 Comment
  CAS-BOT-BC114437  Cyperus erythrorhizos Peter Rubtzoff 1959-8-30 4241 Sonoma Drake's Beach, near Guerneville. Open, wet gravelly margin of Russian River. Comment
  UC1100638  Cyperus niger Herbert L. Mason 1946-7-4 12884 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UCR254758  Cyperus niger Peter Rubtzoff 1970-7-17 6290 Sonoma San Francisco Bay Region, 5 miles north of Sears Point 9 Comment
  CAS-BOT-BC113906  Cyperus niger var. capitatus Peter Rubtzoff 1951-7-1 323 Sonoma Plants of the Pitkin Marsh, near Forestville. Lower part of the upper marsh. Comment
  CAS-BOT-BC113914  Cyperus niger var. capitatus Peter Rubtzoff 1958-8-23 3902 Sonoma Laguna de Santa Rosa E of Cunningham (nr. Llamo Road). Comment
  UC1063767  Cystopteris fragilis E. Armstrong 1934-3-26 919 Sonoma 3 mi w Camp Meeker; Sebastopol Quadrangle Comment
Read comments Nov 14 2007
  UCD137999  Damasonium californicum Herbert L. Mason 1928-4-13 4325 Sonoma near Petaluma. Comment
  CAS-BOT-BC192274  Danthonia californica G. DeNevers 1982-5-2 1979 Sonoma At the Garrison Canyon. Pepperwood Ranch Comment
  CAS-BOT-BC192280  Danthonia californica John Thomas Howell 1935-5-5 12611 Sonoma 6 miles from Santa Rosa, on road to Sonoma Comment
  CAS-BOT-BC210134  Danthonia californica Peter Rubtzoff 1958-5-10 3642 Sonoma Laguna de Santa Rosa east of Cunningham, near the Llano road crossing. Comment
  CAS-BOT-BC210142  Danthonia californica Peter Rubtzoff 1974-5-18 7414 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  CDA11928  Danthonia californica G. F. Hrusa 1989-6-4 7188 Sonoma North Coast Biodiversity Arena; Near headwaters of Nathanson Creek, E of town of Sonoma. Comment
  CDA31317  Danthonia californica D. G. Kelch, Ed Biffin 2010-5-3 10 .21 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC1131385  Danthonia californica H. S. Yates 1937-5-30 6540 Sonoma 1 1/2 mi sse Graton; Sebastopol Quadrangle Comment
  UCD144428  Danthonia californica Frederica Bowcutt; Jolie Hendricks, Jeff Kennedy 1994-5-1 1793 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood, and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 125 yds. 1/4 mile NW of confluence of Rattlesnake Creek, meadow in center of campground. 350 Comment
  UCD21145  Danthonia californica Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-6 320 Sonoma Todd Road Ecological Reserve, W of Highway 101, N of Todd Road. Pool #TOD001. UTMs 10S0519445; 4248904. Comment
  SEINET3926762  Danthonia californica var. americana Beecher Crampton 1962-5-8 6411 Sonoma Located 5 miles south of Geyserville.; 0 Comment
  UC76181  Datura stramonium Miss M. Alice King May, 1897 Sonoma near Healdsburg (Dry Creek); Dry Creek Comment
  UCR279632  Datura stramonium Peter Rubtzoff 1968-9-21 5986 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  RSA662528  Datura stramonium J. C. Roos 1948-8-28 3987 Sonoma Healdsburg. Comment
  CAS-BOT-BC154138  Datura stramonium var. tatula Peter Rubtzoff 1951-8-5 593 Sonoma Mirabel Park, 1.5 miles north of Forestville. Comment
  JEPS15988  Daucus carota W. L. Jepson 1933-8-5 16552 Sonoma Sonoma Comment
  UCD127390  Daucus carota G. F. Hrusa 1998-11-29 14907 Sonoma mowed field across from furthest south residence. Comment
  UC405403  Deinandra corymbosa P. B. Kennedy 1914-10-1 Sonoma Comment
  CAS-BOT-BC9604  Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Valley, west of Occidental Comment
  CAS-BOT-BC9020  Delphinium decorum John Thomas Howell 1931-4-18 6416 Sonoma Larkspur Rock near Bodega Bay Comment
  LA207501  Delphinium hesperium Carl Epling; L. Stebbins, H. Lewis 1943-6-17 515 Sonoma Bodega Bay, ca. 2 mi. E of bay at rock outcrops Comment
  CAS-BOT-BC10005  Delphinium hesperium Peter Rubtzoff 1974-5-25 7465 Sonoma Highway 116, 2 miles west of Forestville. Comment
  LA207535  Delphinium luteum Joseph Andorfer Ewan; 1935-5-12 9229 Sonoma 1.5 m. W of Bodega, Bodega Bay rd Comment
  RSA59836  Delphinium luteum Joseph A. Ewan 1935-5-12 9203 Sonoma 2 miles west of Bodega, on Bodega Bay Road Comment
  CAS-BOT-BC8008  Delphinium nudicaule William Henry Brewer 1862-4-18 968 Sonoma near Sonoma Comment
  CAS-BOT-BC9898  Delphinium nudicaule Mary Hallett 1927-4-1 s.n. Sonoma Graton Comment
  POM150547  Delphinium nudicaule A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross. Comment
  RSA0089555  Delphinium nudicaule Ann Howald 2015-4-1 3316 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 14.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 520 Comment
  CDA24249  Delphinium nudicaule G. D. Barbe, T. C. Fuller 1985-3-28 4198 Sonoma In ravine southwest of pasture; 6560 Sonoma Mountain Road, south of Santa Rosa. Comment
  RSA59856  Delphinium variegatum J. Ewan 1935-5-12 9241 Sonoma Los Guilicos, 2 miles N of Kenwood Comment
  UC353904  Delphinium variegatum Milo S. Baker 1926-7 2140 a Sonoma Bennet Val Road near Summit Comment
  JEPS128274  Dendromecon rigida Roger Raiche 2000-4-23 047 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD136322  Dendromecon rigida M. Rei Scampavia Evangelista 2012-5-20 9 Sonoma Cazadero. Cook House Site at The Cedars. 262 Comment
  CAS-BOT-BC11002  Dendromecon rigida subsp. rigida J. Clausen 1933-3-25 725 Sonoma About 4 miles east of Warfield along the road to Oakville. On the Youngman Ranch. 213 Comment
  CAS-BOT-BC586  Dendromecon rigida subsp. rigida Roxana Stinchfield Ferris; Laura Lorraine 1961-6-15 13558 Sonoma Green Valley Rd, 0.8 miles east of junction with Harrison Grade Rd. Comment
  CAS-BOT-BC192603  Deschampsia cespitosa subsp. holciformis David L. Morgan 1956-5-23 s.n. Sonoma 4 mi. S. of Jenner on State Highway #1 Comment
  CAS-BOT-BC192605  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1947-6-5 23245 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC192608  Deschampsia cespitosa subsp. holciformis Catherine Best 1982-8-18 s.n. Sonoma Goat Rock Park off of Hwy. 1 Comment
  CAS-BOT-BC210040  Deschampsia danthonioides Peter Rubtzoff 1969-5-24 6061 Sonoma Vernal pool 7.5 mi. northeast of Penngrove on Lichau Road. 426 Comment
  RSA785842  Deschampsia danthonioides Peter Rubtzoff 1974-5-26 7494 Sonoma Todd road 1.5 mi from Hwy 116 and 0.5 mi from Llano Road Comment
  UC730019  Deschampsia danthonioides Leo F. Koch 1940-4-24 845 Sonoma field just n. of Warfield Station Comment
  CAS-BOT-BC201956  Deschampsia elongata Roxana S. Ferris; Laura Lorraine 1961-6-14 13544 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner Comment
  POM207093  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  RSA144369  Deschampsia elongata Roxana S. Ferris, Laura Lorraine 1961-6-14 13544 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UC1023590  Deschampsia elongata Virginia Bufford 1936-5-19 262 Sonoma Bennett Valley - 2 or 3 mi. from Santa Rosa; Bennett Valley Comment
  UC9934  Dicentra formosa Harley P. Chandler 1900-5-25 669 Sonoma Bodega Comment
  CAS-BOT-BC208932  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell; J. W. Stacey 1936-7-26 12680 Sonoma Pitkin Marsh, 5 miles N of Sebastopol Comment
  CAS-BOT-BC208927  Dichanthelium acuminatum subsp. acuminatum Helen D. Geis 1903-8-1 569 Sonoma The Geysers Comment
  CAS-BOT-BC209248  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-7 1618 Sonoma The Geysers, along Sulphur Creek downstream from the geysers area. 100 Comment
  CAS-BOT-BC502209  Dichelostemma capitatum F. Almeda; G. DeNevers 1981-3-30 4883 Sonoma Vicinity of the Bechtel Cabin. Comment
  HSC3074  Dichelostemma capitatum subsp. capitatum S. N. Wiemeyer 1962-4-20 19 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  RSA177950  Dichelostemma capitatum subsp. capitatum Robert F. Thorne 1965-4-20 34327 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  CHSC20585  Dichelostemma congestum Robert A. Schlising; Glenn Keator 1965-5-22 2824 Sonoma About 1 mile north of Occidental; Comment
  UCD55137  Dichelostemma congestum Ellen Dean; Tammie Beyerl 2006-4-28 3019 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 179 Comment
  JEPS79159  Dichelostemma multiflorum Nancy Harrison 1980-5-16 2124 Sonoma s of Piner Elementary School; Santa Rosa Comment
  SEINET4207210  Dichondra occidentalis A. A. Beetle 1940-4-7 2598 Sonoma Five miles north of Jenner.; 0 Comment
  RSA788366  Digitaria Peter Rubtzoff 1971-8-31 6664 Sonoma Todd Road near Stony Point Road Comment
  CAS-BOT-BC209111  Digitaria sanguinalis Catherine Best 1987-7-2 1299 Sonoma Along Todd Road about 1 mile from Llano Road Comment
  CAS-BOT-BC151881  Diplacus congdonii John Thomas Howell 1937-4-11 12892 Sonoma Triniti Mt. east of Glen Ellen Comment
  CAS-BOT-BC151379  Diplacus tricolor Peter Rubtzoff; Nancy Harrison; Walter Lennon 1974-5-11 7400 Sonoma Laguna de Santa Rosa ca. 1 mi. east-souteast of Sebastopol Comment
  RSA122773  Dirca occidentalis Milo S. Baker 1942-5-20 10197 Sonoma 2 miles west of Bodega town on a road which turns right within the town Comment
  RSA74474  Dirca occidentalis Milo S. Baker 1942-5-20 10197 Sonoma 2 miles west of Bodega town on a road which turns right within the town Comment
  UC429275  Disporum hookeri Milo S. Baker 1904-6-20 Sonoma Sonoma Creek Canyon Comment
  UCD64361  Distichlis spicata Collector Unknown 1941-9-1 153 Sonoma Near mouth of Walker Cr. by Tomales Bay. Comment
  UCD151168  Dodecatheon hendersonii James A. Neilson Jr. 1974-3-27 s.n. Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  SJSU8499  Dodecatheon hendersonii T. A. Wayne III 1962-4-7 Sonoma midway between Bodega Bay & Salmon Cr 91 Comment
  JEPS26980  Downingia bicornuta var. bicornuta Allison Hastings 1940-5-3 Sonoma e of Santa Rosa Fair Grounds Comment
  CAS-BOT-BC154135  Downingia concolor var. concolor Peter Rubtzoff 1969-5-11 6039 Sonoma Laguna de Santa Rosa, northeast of Graton, at the end of Piner Road. Comment
  UC1244024  Downingia concolor var. concolor John H. Weiler 1960-4-22 60102 Sonoma Schellville station, Southern Pacific Railroad Comment
  UC726434  Downingia concolor var. concolor A. A. Heller 1941-5-17 16135 Sonoma 2 mi n Windsor (on U.S. Highway 101) Comment
  SD108305  Downingia concolor var. concolor Walter Knight, Irja Knight 1980-5-12 Sonoma 0.5 mile south of junction of highways 116 and 121 in Sonoma Valley. Comment
  CAS-BOT-BC401544  Drosera rotundifolia H. B. Humphrey 1908-5-15 s.n. Sonoma Bog near Santa Rosa Comment
  UCSB3686  Drosera rotundifolia Kamb, Peter; Chisaki, Francia 1950-6-16 Sonoma Pitkin Marsh; northwest of Sebastopol; 1 mile north of Sousa Corners; toward south end of marsh Comment
  POM179770  Drymocallis glandulosa var. wrangelliana J. T. Howell 1930-6-8 5255 Sonoma 1 mile east of Bodega Bay Comment
  RSA123329  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3755 Sonoma Near Bodega. 61 Comment
  UCD136430  Dryopteris arguta Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1754 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trail approx. 200 yds. From just E of Bear Creek about 5 yds. N of confluence with Sonoma Creek. 198 Comment
  UCD167958  Dysphania James Neilson 1981-7-16 4050 Sonoma Mayacmas Mountains. Big Sulphur Cr. At bridge crossing road to Cloverdale. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC210080  Echinochloa Peter Rubtzoff 1976-8-29 8835 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC210126  Echinochloa Peter Rubtzoff 1971-8-9 s.n. Sonoma Laguna Lake area, Chileno Valley. Comment
  RSA785443  Echinochloa Peter Rubtzoff 1973-9-4 7296 Sonoma Russian River at Forest Hills, 5.5 mi east of Guerneville. Comment
  UCD164337  Echinochloa Peter Rubtzoff 1976-8-29 8834 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD165779  Echinochloa Peter Rubtzoff 1973-9-4 7296 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD167956  Echinochloa James Neilson 1981-7-16 4048 Sonoma Mayacmas Mountains. Big Sulphur Cr. At bridge crossing road to Cloverdale. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC173585  Echinochloa crus-galli Peter Rubtzoff 1956-9-15 2901 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC176199  Echinochloa crus-galli Peter Rubtzoff 1956-9-14 2860 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC208552  Echinochloa crus-galli G. DeNevers; S. Castagnoli 1981-8-2 1780 Sonoma Mark West Creek, at its confluence with Leslie Creek, Pepperwood Ranch Comment
  CAS-BOT-BC208554  Echinochloa crus-galli Lewis S. Rose 1956-8-20 56148 Sonoma San Antonio Creek, Highway 101 3 Comment
  UCR244503  Echinodorus berteroi Peter Rubtzoff 1970-8-5 6297 Sonoma San Francisco Bay Region, Five miles north of Sears Point 11 Comment
Read comments Oct 13 2015
  CAS-BOT-BC113736  Eleocharis acicularis var. gracilescens Peter Rubtzoff 1951-6-17 268 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC112982  Eleocharis macrostachya Peter Rubtzoff 1951-7-14 471 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  UC1146675  Elymus X hansenii Freed W. Hoffman 1941-8-2 2224 Sonoma Gualala River North Coast Ranges (headwaters) Comment
  UCD61432  Elymus elymoides Beecher Crampton 1959-6-16 5386 Sonoma 1 mile E of Occidental. Comment
  CDA15742  Elymus elymoides subsp. elymoides G. F. Hrusa 1998-6-14 14594 Sonoma Knights Valley; Serpentine slopes on side of Ida Clayton Rd., ~1.5 mi. E of Hwy. 128, NW shoulder of Mt. St. Helena. Serpentine interfingering with volcanic substrate, this apparently on both. Occasional, perennial bunchgrass. Comment
  HSC9712  Elymus glaucus C. S. Chavez 1965-6-5 82 Sonoma 1 mi. N of Sebastopol on Guerneville Rd. Comment
  UCD62305  Elymus glaucus H. S. Yates 1936-5-16 5585 Sonoma 1 mile N.E. of Graton. 30 Comment
  UCR255679  Elymus glaucus Greg de Nevers 1989-1 9065 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 488 Comment
  UC1011033  Elymus glaucus Virginia Bufford 1935-5-9 35 Sonoma Stony Point-Two Rock Rd.; along R.R. Comment
  JEPS45813  Elymus glaucus subsp. glaucus Eleanor Armstrong 1932-5-19 162 Sonoma 1 mi w Camp Meeker 91 Comment
  UC1153909  Elymus glaucus subsp. virescens Beecher Crampton 1957-7-11 4311 Sonoma 1.4 mi se Bodega Bay (along State Hwy 1) Comment
  UCD62509  Elymus multisetus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3577 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  UCR255660  Epilobium Greg de Nevers 1998-4-28 11208 Sonoma North Coast Range, Cresta Ranch, Cresta Road east of Mark West Lodge, on flood plain of Mark West Creek 137 Comment
  UC20095  Epilobium brachycarpum J. Burtt Davy Aug. 1896 4139 Sonoma Russian River Comment
  CAS-BOT-BC268117  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1970-6-21 6270 Sonoma Sluggish tributary of Mark West Creek, ca. 3 miles west of Fulton. Comment
  CAS-BOT-BC262970  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1955-8-20 2088 Sonoma Bodega Harbor Marsh. Comment
  RSA37533  Epilobium ciliatum subsp. watsonii Milo S. Baker 1939-5-19 9332 Sonoma Twin Pine Ranch Comment
  UCR244514  Epilobium densiflorum Peter Rubtzoff 1969-8-26 6154 Sonoma On River Road, c. 3 miles west of Fulton 27 Comment
  RSA800405  Epilobium hallianum Peter Rubtzoff 1962-6-1 4855 Sonoma Freestone Marsh Comment
  UC353896  Epilobium minutum Milo S. Baker 1927-5-7 2145 a Sonoma Adobe Canyon Fitzsimmon's Grade (at base of grade) Comment
  UCD165166  Epilobium torreyi Peter Rubtzoff 1974-5-26 7491 Sonoma 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  JEPS128318  Epipactis gigantea Roger Raiche 2000-5-28 121 .00 Sonoma The Cedars, (shown on SLT maps as Marshall Creek but this is not the name on USGS topo sheets). Gualala River, Wheatfield Fork watershed. Comment
  CAS-BOT-BC164680  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA790976  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD165778  Equisetum Peter Rubtzoff 1973-8-31 7291 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC210087  Equisetum Peter Rubtzoff 1964-6-20 5361 Sonoma Laguna de Santa Rosa southeast of Sebastopol (near Cooper Road). Comment
  UCD135324  Equisetum Donna Allen 1977-5-24 s.n. Sonoma Dry cr. rd. side 15 miles from the coast. Comment
  CAS-BOT-BC57042  Equisetum arvense Peter Rubtzoff 1959-6-20 4183 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC57229  Equisetum laevigatum J. W. Congdon 1880-10-27 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC57813  Equisetum laevigatum Dorothy Scherer 1997-5-6 134 Sonoma SE. of Fort Ross Cove picnic area, Fort Ross State Historic Park. 7 Comment
  UCD135948  Equisetum telmateia subsp. braunii J. M. Tucker; C. H. Lamoureux 1958-6-8 3407 Sonoma Beside State Highway 12, 1.6 miles southeast of center of Guerneville. Comment
  RSA309328  Equisetum telmateia var. braunii Edward Lee, W. A. Setchell 1936-6-7 2174 Sonoma Trail No. 10, Bohemian Grove. Comment
  CAS-BOT-BC173850  Eragrostis cilianensis Peter Rubtzoff 1956-9-14 2863 Sonoma Vacation Beach, near Guerneville. Comment
  UCD148411  Eragrostis cilianensis Peter Rubtzoff 1958-8-30 3930 Sonoma Vacation Beach, near Guerneville. Comment
  UC1563681  Eremocarpus setiger Barbara Ertter 1988-11-5 8033 Sonoma point below Little Flat parking area (w of bridge, ca 5 air mi due s of Cloverdale); Lake Sonoma 152 Comment
  CAS-BOT-BC376296  Erigeron Greg de Nevers 1992-7-25 10226 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 304 Comment
  UCR255874  Erigeron annuus Greg de Nevers 1994-6-13 10526 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UC895875  Erigeron glaucus Marcus E. Jones, A. M. 1882-7-17 3622 Sonoma Duncan's Mills Comment
  CAS-BOT-BC224151  Eriodictyon californicum Peter Rubtzoff 1952-6-3 1169 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  JEPS128178  Eriodictyon californicum Roger Raiche 2001-5-17 023 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  JEPS128205  Eriodictyon californicum Roger Raiche 2000-4-30 055 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET12329795  Eriodictyon californicum W. Knight, Knight, I.; Edwards, S. 1986-1 5321 Sonoma trail to Geyser Peak W of Geyserville from Geyser Rd 853 Comment
  JEPS82528  Eriogonum compositum var. compositum Roger Raiche 1984-6-1 40173 Sonoma 2 mi n Camp Meeker (Duvoul Creek where it crosses the Bohemian Highway); Duvoul Creek Comment
  CAS-BOT-BC259264  Eriogonum latifolium John Thomas Howell 1930-7-27 5402 Sonoma 1 mile north of Fort Ross Comment
  LA206932  Eriogonum latifolium John Thomas Howell; 1930-6-8 5288 Sonoma 8.5 mi. N of Bodega Bay Comment
  RSA29503  Eriogonum latifolium E. K. Balls, Percy C. Everett 1953-10-9 18598 Sonoma 0.5 mi. n.w. of Salmon Creek, Hwy 1, between Bodega Bay and Jenner. Comment
  CAS-BOT-BC259467  Eriogonum luteolum Walter Knight; Irja Knight; Tiffany Knight; Dr. Steve Edwards 1985-7-21 5395 Sonoma Red Hill off Pine Flat Road 640 Comment
  CDA30996  Eriogonum luteolum D. G. Kelch, Troy McGregor 2010-8-22 10 .356 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  UC85726  Eriogonum luteolum var. luteolum Alice Eastwood 1900-9-9 Sonoma Mt. St. Helena Comment
  SBBG20895  Eriophyllum lanatum A. I. Richardson 1961-5-16 18 Sonoma Sweetwater Springs Rd, 1 mi beyond turn to Armstrong Redwoods State Park, N of Guerneville Comment
  UC615101  Eriophyllum lanatum var. achilleoides Beryl O. Schreiber 1934-5-14 1111 Sonoma Fitch Mountain Road Healdsburg, Fitch Mountain road Comment
  CAS-BOT-BC301283  Eriophyllum lanatum var. arachnoideum G. DeNevers 1981-4-25 825 Sonoma Pepperwood Ranch. Lower Pepperwood entrance Comment
  CAS-BOT-BC301285  Eriophyllum lanatum var. arachnoideum Walter Knight; Irja Knight 1963-10-27 396 Sonoma Spring Mt. Road Comment
  CAS-BOT-BC301288  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Sonoma Jensen Ranch, at head of Dohrman Creek, four miles west of Healdsburg Comment
  CAS-BOT-BC301296  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan's Mills Comment
  JEPS128258  Eriophyllum lanatum var. arachnoideum Roger Raiche 2000-4-20 039 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM66821  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan[s] Mills. Comment
Read comments Jun 19 2012
  RSA603483  Eriophyllum lanatum var. arachnoideum Jens Clausen 1935-5-24 1086 Sonoma 5.1 miles S of Jenner, on the Bodega Road. Comment
  UC750800  Eriophyllum lanatum var. arachnoideum Charles B. Heiser Jr. 1946-4-13 1721 Sonoma 2 mi e Jenner Comment
  SD88414  Eriophyllum lanatum var. grandiflorum Darley F. Howe 1972-4-30 Sonoma Bodega Bay Comment
  RSA0039520  Eryngium aristulatum G. Fred Hrusa, A. Buckmann 1996-10-5 13582 C Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Road +/- 2 m. SW of Calistoga. 700 Comment
  SEINET13944099 Image available Eryngium aristulatum Joseph Andorfer Ewan 1935-1 9256 Sonoma Along railroad tracks all pls. now dormant, W right School on Sebastopol road Comment
  SBBG27233  Eryngium aristulatum var. aristulatum J. T. Howell 1933-8-27 11619 Sonoma San Pablo Bay SW of Sonoma Comment
  POM179766  Eryngium armatum J. T. Howell 1930-6-8 5215 Sonoma 8 miles west of Petaluma on Bodega Road. Comment
  UC1122952  Eryngium armatum H. S. Yates 1936-5-17 5631 Sonoma 2 mi. n. Bodega Bay; Duncan Mills Quad. 15 Comment
  UC1931038  Eryngium constancei G. F. Hrusa 1996-10-5 13582 C Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m SW of Calistoga. 700 Comment
Read comments Jan 8 2013
  UC1931039  Eryngium constancei G. F. Hrusa 1996-10-5 13582 B Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m SW of Calistoga. 700 Comment
Read comments Jan 8 2013
  UCD127468  Eryngium constancei G. F. Hrusa 1997-7-5 14010 Sonoma approximately 200 meters west of Highway 128 in drainage of Blossom Creek, 2km. northwest of Tubbs Lane int. 200 Comment
Read comments Dec 30 2014
  JEPS46176  Erysimum capitatum var. capitatum Eleanor Armstrong 1933-4-15 792 Sonoma hillside Camp Meeker 45 Comment
  SD77326  Erythranthe guttata F. W. Pennell, H. L. Mason 1940-5-21 25489 Sonoma Route 28, Kinghts Valley, along Maacona Creek, 12 mi. e. Healdsburg, along stream 121 Comment
  SEINET8255128  Erythranthe microphylla Unknown 1940-5-21 25883 Sonoma Route 28. 183 Comment
  RSA304233  Erythronium californicum James R. Shevock 1972-3-28 1484 Sonoma Highway 128, north of Cloverdale. 244 Comment
  RSA785713  Erythronium californicum Carrie A. Herd 1982-3-28 62 Sonoma Scagg Springs Road, near bridge no. 1 Comment
  SEINET3991264  Erythronium helenae Unknown 1934-3-25 8855 Sonoma Headwaters of Sulpher Creek, opposite the old Sonoma quicksilver mine 610 Comment
  JEPS51720  Eschscholzia californica W. L. Jepson 1911-4-30 4188 Sonoma near Glen Ellen; Sonoma Valley Comment
  RSA33437  Eschscholzia californica subsp. californica E. K. Balls, Percy C. Everett 1953-10-9 18596 Sonoma South end of Doran Park, Bodega Bay, Hwy 1 3 Comment
  UC1010408  Euonymus occidentalis var. occidentalis K. Wagnon May 1939 220 Sonoma 5 mi. w. Sebastopol (1/8 mi. n.e. of Wagnon Ranch, along Jonive Creek); Jonive Creek Comment
  CAS-BOT-BC202539  Euphorbia Peter Rubtzoff 1978-9-10 9265 Sonoma Russian River at Del Rio Beach, ca. 2.5 mi. east of Healdsburg on So. Fitch Mtn. Road Comment
  CAS-BOT-BC540836  Euphorbia Peter Rubtzoff 1970-9-2 6359 Sonoma Mirabel Park; Russian River bottom Comment
  UCD142451  Euphorbia peplus Freed W. Hoffman 1947-2-28 604 Sonoma Wild Hog Ridge; headwaters of Palmer Creek, a branch of Mill Creek. Comment
  SEINET12143865  Euphorbia supina K. Wagnon, Knight, W. 1987-1 6103 Sonoma Spring Lake Village east of Santa Rosa 15 Comment
  CAS-BOT-BC312187  Eurybia radulina Walter Knight; Irja Knight 1963-9-1 385 Sonoma Harold Smith Ranch, Pine Int. Rd. NE of Cloverdale 548 Comment
  UCR255678  Euthamia occidentalis Greg de Nevers 2002-9-9 12841 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 366 Comment
  RSA0025192  Euthamia occidentalis Peter Rubtzoff 1961-9-20 4748 Sonoma Americano Creek, 0.9 mi west of Bloomfield. Comment
  RSA0021488  Festuca Peter Rubtzoff 1976-6-5 8588 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UCR248731  Festuca arundinacea Peter Rubtzoff 1962-5-11 4823 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  CAS-BOT-BC278280  Festuca californica Greg de Nevers 1988-6-4 8690 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC283183  Festuca californica subsp. californica G. DeNevers 1981-6-15 1543 Sonoma Along the stream down from the Rogers Apple Orchard, Pepperwood Ranch Comment
  CAS-BOT-BC283188  Festuca californica subsp. californica G. DeNevers 1981-5-15 1172 Sonoma N arm of Garrison Canyon, Pepperwood Ranch Comment
  CAS-BOT-BC283185  Festuca californica subsp. californica G. DeNevers 1981-4-27 882 Sonoma West arm of Garrison Canyon, Pepperwood Ranch Comment
  UCD151131  Festuca idahoensis James A. Neilson Jr. 1973-6-6 2976 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  RSA121313  Festuca idahoensis H. S. Yates 1937-5-31 6568 Sonoma Alpine School. 305 Comment
  JEPS41089  Festuca rubra Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9113 Sonoma between 1 and 1.25 mi due w Napa County line (along the Franz Valley School road) 219 Comment
  SEINET11690155  Festuca rubra W. Knight, Knight, I.; Howell, J. T. 1987-1 6276 Sonoma Todd Road Preserve 24 Comment
  UCD111853  Ficus carica Frederica Bowcutt 1994-6-12 1867 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. At intersection of Pony Gate Trail and seasonal creek in Pony Gate Gulch. 326 Comment
  CAS-BOT-BC354068  Filago Peter Rubtzoff 1958-8-30 3943 Sonoma Vacation Beach, near Guerneville. Comment
  SEINET181249  Filago gallica Bassett Maguire, R Maguire; Maguire 1934-6-7 15312 Sonoma 2 mi N of Kellogg Comment
  UCD16109  Fragaria chiloensis I. Coats 1983-5-17 26 Sonoma California. Sonoma County: Hwy 1, 4.3 mi N of the entrance to Salt Point State Park. 21 Comment
  CAS-BOT-BC457575  Fragaria vesca subsp. californica Peter Rubtzoff 1957-5-4 3304 Sonoma Upper part of Duncan's Mills Marsh, Sonoma County Marshes Comment
  CAS-BOT-BC457578  Fragaria vesca subsp. californica Peter Rubtzoff 1957-5-4 3304 Sonoma Border of upper part of Duncan's Mills Marsh, Sonoma County Marshes Comment
  CAS-BOT-BC53271  Frangula californica subsp. californica Walter Knight; Irja Knight 1963-12-27 467 Sonoma Summit, Pine Flat Rd. Comment
  CAS-BOT-BC53276  Frangula californica subsp. californica Peter Rubtzoff 1957-6-28 3377 Sonoma Duncans Mills Marsh Comment
  UCSB22888  Frangula californica subsp. californica Von Grafen, Helen 1928-8-20 Sonoma No data Comment
  CAS-BOT-BC218586  Fraxinus latifolia Peter Rubtzoff 1951-8-19 653 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  RSA232867  Fraxinus latifolia L. S. Rose 1968-6-25 68117 Sonoma Rincon Valley, Brush Creek, NE of Santa Rosa. 122 Comment
  UCD116299  Fremontodendron californicum Roger Raiche 1984-5-4 RR 40133 Sonoma North of Guerneville, Morrison Ridge above Gilliam Creek. Austin Creek Recreational Area, headwaters of East Austin Creek Recreational Area. 182 Comment
  CAS-BOT-BC130183  Fritillaria affinis J. W. Congdon 1880-4-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC130185  Fritillaria affinis Elmer I. Applegate 1934-3-25 8861 Sonoma Pine Flat region, west slope of the [Mayacama] Mayacmas range Comment
  SEINET12048685  Fritillaria affinis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -155 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  CAS-BOT-BC130357  Fritillaria liliacea Miss. L. S. Huffine 1927-4-1 s.n. Sonoma On road from Occidental to Sebastopol Comment
  UC480623  Fritillaria recurva Carl Meyer 1928-3-3 321 Sonoma Santa Rosa Comment
  UCD121960  Galium Frederica Bowcutt 1996-5-23 2146 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Adobe Canyon at toe of Sugarloaf Ridge, just S of campground. 377 Comment
  CAS-BOT-BC376341  Galium andrewsii Greg de Nevers 1998-6-10 11283 Sonoma Modini Mayacamas Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  JEPS128191  Galium californicum Roger Raiche 1999-5-23 007 .99 Sonoma The Cedars, Mineral Falls Canyon, Lunar Fork. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS52892  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3902 Sonoma 4.8 mi n Cazadero (on King Mt. Rd.) Comment
  UCD161310  Galium divaricatum James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3701 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  JEPS117088  Galium murale Peter Warner 2010-5-20 156 Sonoma Jenner Headlands, upper Middle Pasture, near small drainage, downslope ~155 m from Willig Extension Drive (main property road) Comment
  UCD151154  Galium nuttallii James A. Neilson Jr. 1973-6-7 3563 Sonoma Mayacmas Mountains. The Geysers. Site IV. (Exact location of Site IV unknown. Elevation and coordinates very broadly estimated by label maker.) 441 Comment
  UCR30592  Galium parisiense John C. Roos 1950-7-22 4875 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  POM67597  Galium porrigens Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  JEPS52756  Galium porrigens var. porrigens Rimo Bacigalupi 1964-8-3 8999 Sonoma on stretch of road between Fort Ross and Russian Gulch (slopes 450-500 ft above and facing sea, just s of Meyer Gulch (exactly 0.9 mi n of junction of road to Seaview)) 137 Comment
  JEPS52967  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3903 Sonoma 4.8 mi n Cazadero (on King Mt. Road) Comment
  JEPS6610  Galium porrigens var. porrigens Willis L. Jepson 1892-8-7 Sonoma to Knights; Alexand Valley Grade Comment
  UCD121901  Galium porrigens var. porrigens Frederica Bowcutt 1994-5-21 1831 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, about 10 air miles E of Santa Rosa, about 18 air miles NW of Napa, about 1.5 air miles N of Kenwood. Along Hillside Trail past the junction with Digger Pine trail approx. 1/4 mile. 411 Comment
  RSA264732  Galium trifidum Peter Rubtzoff 1962-7-14 4987 Sonoma Laguna. Chileno Valley. Comment
  RSA603802  Gamochaeta ustulata D. D. Keck, Jens Clausen 1935-6-15 3370 Sonoma 1 mile north of Salmon Creek (North of mouth of Salmon Creek.) Comment
  SEINET4571745  Gastridium phleoides L. Koch 1940-4-22 837 Sonoma Grassy hills above Sulfur Creek Geysers Comment
  UCD81373  Gastridium phleoides Frederica Bowcutt 1996-5-19 2127 a Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon firebreak (narrow) btw. lower Bald Mtn. and Bald Mt. Trail. 487 Comment
  UCR248754  Gastridium ventricosum Peter Rubtzoff 1970-8-19 6334 Sonoma On Austin Creek beach, 0.5 miles north of Cazadero 38 Comment
  UCD103411  Geranium molle Mary M. Hektner 1976-9-15 268 Sonoma Irena Morgan's garden. Pacific Reach Road, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CDA34794  Geranium molle Peter Warner 2010-3-29 121 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  UC17156  Geranium pusillum Harley P. Chandler 1900-5-25 708 Sonoma Bodega Bay Comment
  CAS-BOT-BC361360  Gilia capitata Greg de Nevers 1997-4-16 10937 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  CAS-BOT-BC361367  Gilia capitata subsp. capitata Greg de Nevers 1997-4-12 10929 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  JEPS46208  Gilia capitata subsp. capitata Eleanor Armstrong 1932-5-15 453 Sonoma near Camp Meeker; near Camp Meeker 106 Comment
  UC932032  Gilia capitata subsp. capitata Verne Grant, Alva Grant 1947-5-4 7960 Sonoma Rincon grade 4 mi nw Santa Rosa (on road to petrified forest); nw of Santa Rosa on road to petrified forest Comment
  UCSB31713  Gilia capitata subsp. capitata Townsend, J. 1977-5-30 Sonoma East bank Russian River, 1 mile south of Gurneyville Comment
  CAS-BOT-BC225279  Gilia capitata subsp. chamissonis Peter Rubtzoff 1960-5-18 4384 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC226167  Gilia capitata subsp. tomentosa John Thomas Howell 1930-6-8 5265 Sonoma 1 mile east of Bodega Bay Comment
  RSA83145  Gilia capitata subsp. tomentosa Verne Grant, Alva Grant 1948-7-7 8599 Sonoma 3.7 miles south of Fort Ross on Hwy 1 Comment
  NY336870  Gilia pallida A. A. Heller 1902-6-23 5739 Sonoma Petrified Forest Comment
  POM65678  Gilia tricolor A. A. Heller, H. E. Brown 1902-4-4 5211 Sonoma Hills east of Santa Rosa Comment
  RSA51328  Gilia tricolor P. H. Raven 1950-4-6 1604 Sonoma Lower slopes of Rincon Ridge, 4 miles from Santa Rosa to Sonoma. 244 Comment
  JEPS86003  Gilia tricolor subsp. tricolor Alice King 1897-5-10 Sonoma Healdsburg Comment
  JEPS128197  Githopsis specularioides Roger Raiche 2000-5-4 075 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC764573  Githopsis specularioides R. F. Hoover 1939-4-18 4035 Sonoma Occidental Comment
  CDA2720  Gladiolus italicus William J. Ferlatte 1974-5-1 Sonoma Northwest corner of East Washington and Adobe Road, Petaluma. 0 Comment
  UC1784202  Glebionis segetum Ethel Crum 1930-1 737 Sonoma Petaluma Comment
  RSA234555  Glinus lotoides Peter Rubtzoff 1966-9-25 5825 Sonoma Laguna de Santa Rosa east of Grafton, betw. Occidental and Guerneville Rds. Comment
  CAS-BOT-BC227651  Glyceria Peter Rubtzoff 1966-5-29 5739 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road crossing). Comment
  SEINET10717791  Glyceria P. Rubtzoff 1968-8-24 Rubtzoff 5935 Sonoma Upper Salmon Creek Marsh. Comment
  SEINET10959322  Glyceria fluitans Adolph D. E. Elmer Elmer 4652 Sonoma Petaluma. Comment
  RSA94258  Glyceria leptostachya Peter Rubtzoff 1951-6-17 285 Sonoma Northern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC303864  Gnaphalium Peter Rubtzoff 1970-9-2 6360 Sonoma Russian River bottom at Mirabel Park, near a pool Comment
  CAS-BOT-BC164700  Gnaphalium Peter Rubtzoff 1966-8-29 5815 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD166104  Gnaphalium Peter Rubtzoff 1971-9-3 6697 Sonoma Spring Creek Reservoir Area. Comment
  CAS-BOT-BC166679  Gnaphalium chilense Peter Rubtzoff 1958-8-23 3927 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC176155  Gnaphalium chilense Peter Rubtzoff 1955-9-9 2125 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC166783  Gnaphalium palustre Peter Rubtzoff 1954-7-3 1515 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC166785  Gnaphalium palustre Peter Rubtzoff 1959-8-30 s.n. Sonoma Drake's Beach near Guerneville. Comment
  CAS-BOT-BC302692  Gnaphalium palustre Peter Rubtzoff 1969-11-2 6208 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC261652  Gratiola Peter Rubtzoff; H. A. Froebe 1971-5-30 6495 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA785227  Grindelia Peter Rubtzoff 1963-8-17 5225 Sonoma Along Petaluma River, just E of Petaluma. Comment
  CAS-BOT-BC305179  Grindelia hirsutula John Thomas Howell 1938-7-3 13946 Sonoma Stony Point Comment
  JEPS86802  Grindelia hirsutula Jack and Betty Guggolz 1991-7-20 1210 Sonoma 2.25 mi nw Camp Meeker (along a road) 182 Comment
  CAS-BOT-BC371464  Habenaria Greg de Nevers 1989-9-10 9103 Sonoma Field redacted by CAS, contact the data manager for more information 400 Comment
  CAS-BOT-BC376285  Habenaria Greg de Nevers 1992-7-12 10217 Sonoma Field redacted by CAS, contact the data manager for more information 304 Comment
  UC38767  Hainardia cylindrica A. B. Leckenby July, 1896 Sonoma Petaluma Comment
  SEINET11689070  Hainardia cylindrica H. K. Wagnon 1989-1 1895 Sonoma Spring Lake Park & environs, adjacent to Montgomery Drive, trail at entrance to Annadel Park 67 Comment
  UC30652  Harmonia nutans F. T. Bioletti 1892-5-15 Sonoma Hood's Peak; ; Hood's Peak, Sonoma Co. Comment
  UC584185  Harmonia nutans J. Clausen 1935-5-24 1077 Sonoma first ravine above Kenwood Springs; Adobe Canyon, Sonoma Creek Comment
  UC1032155  Helenium bigelovii H. S. Yates 1936-5-16 5598 Sonoma 2 mi se Forestville (Pittsin Marsh <from dip>); Sebastopol Quadrangle Comment
  UCSB9937  Helenium bigelovii Chisaki, Francia 1950-6-16 Sonoma Pitkin Marsh, northwest of Sebastopol, 1 mile north of Sousa Corners 60 Comment
  CAS-BOT-BC306765  Helenium bigelovii Milo S. Baker 1927-6-9 2217 b Sonoma About Kenwood Comment
  CAS-BOT-BC306768  Helenium bigelovii Mary P. Wells 1984-8-8 431 Sonoma Deer Trail, The Sea Ranch Comment
  RSA74050  Helenium bigelovii Milo S. Baker 1947-6-26 11834 Sonoma Cunningham Marsh, ca 1 mile SW of Cunningham Sta. (air line) Comment
  CAS-BOT-BC309580  Helenium puberulum Mildred Parks 1925-7-20 s.n. Sonoma Stewarts Point Comment
  CAS-BOT-BC309586  Helenium puberulum Marcus E. Jones 1931-7-5 29104 Sonoma The Geysers Comment
  CAS-BOT-BC305581  Helianthus bolanderi Volney Rattan 1877-6-26 s.n. Sonoma Geysers Comment
  UC578052  Helminthotheca echioides H. S. Yates 1935-10-3 5343 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  CAS-BOT-BC173588  Hemizonia Peter Rubtzoff 1969-5-3 6021 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UCD166184  Hemizonia Peter Rubtzoff 1969-7-25 6122 Sonoma Vernal pool area, 6.5 mi northeast of Penngrove on Lichau Road. 427 Comment
  UCD166205  Hemizonia Peter Rubtzoff 1969-8-28 6164 Sonoma Vernal pool area, 6.5 miles northeast of Penngrove on Lichau Road. 427 Comment
  UCR244619  Hemizonia Peter Rubtzoff 1969-7-25 6122 Sonoma Vernal pool area, 6.5 mi northeast of Penngrove on Lichau Road 427 Comment
  CAS-BOT-BC262984  Hemizonia Peter Rubtzoff 1971-7-23 6619 Sonoma Laguna, Chileno Valley. Comment
  POM53599  Hemizonia congesta A. A. Heller 1902-6-4 5637 Sonoma Santa Rosa Comment
  UCD167319  Hemizonia congesta James Neilson 1977-6-7 3911 Sonoma Mayacmas Mountains, Locke Cabin area east of Lunar Point. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA81606  Hemizonia congesta James I. McMurphy 1908-9-26 s.n. Sonoma Foothills E of Fulton. Comment
  CAS-BOT-BC306154  Hemizonia congesta subsp. clevelandii J. McMurphy 1909-7-10 502 Sonoma Hills near Cloverdale Comment
  CAS-BOT-BC306217  Hemizonia congesta subsp. congesta H. M. Hall 1931-5-26 13082 Sonoma El Verano Comment
  CAS-BOT-BC306221  Hemizonia congesta subsp. congesta Alice Eastwood; John Thomas Howell 1936-5-19 2513 Sonoma 2 miles n. of Windsor Comment
  JEPS77885  Hemizonia congesta subsp. congesta Edward Lee 1934-4-30 751 Sonoma 1 mi w 2 Rock junction Comment
  UC193422  Hemizonia congesta subsp. congesta H. M. Hall 1916-6-23 10241 Sonoma twelve km n Petaluma Comment
  CAS-BOT-BC309668  Hemizonia congesta subsp. lutescens John I. Carlson 1917-7-23 s.n. Sonoma Preston Comment
  CAS-BOT-BC309723  Hemizonia congesta subsp. lutescens David D. Keck 1933-11-6 2652 Sonoma 1/2 mi. S. of Jenner Comment
  CAS-BOT-BC309728  Hemizonia congesta subsp. lutescens David D. Keck 1933-11-6 2649 Sonoma 2.5 mi. N. of Occidental Comment
  CAS-BOT-BC309725  Hemizonia congesta subsp. lutescens W. M. Heusi 1930-10-18 108 Sonoma Eight miles east of Petaluma on highway toward Sonoma Comment
  SBBG128853  Hemizonia congesta subsp. lutescens A. Howald 2011-8-30 2808 Sonoma eastern Petaluma Valley, Manor Lane, 0.5 mi N of intersection with Old Adobe Rd 75 Comment
  CAS-BOT-BC309949  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1930-9-1 9173 Sonoma North Coast Ranges. Knight's Valley Comment
  CAS-BOT-BC309950  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-6-8 s.n. Sonoma Valley across hills from Petaluma Comment
  CAS-BOT-BC309957  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1907-8-1 s.n. Sonoma Santa Rosa Comment
  CHSC107539  Hemizonia congesta subsp. luzulifolia D. G. Kelch; Troy McGregor 2010-8-22 10 .352 Sonoma Nr Peak of Geyser Peak Rd. Comment
  CAS-BOT-BC306255  Hemizonia congesta subsp. luzulifolia David D. Keck 1933-11-10 2731 Sonoma 2.3 mi. S.W. of Shellville railroad station Comment
  CAS-BOT-BC309963  Hemizonia congesta subsp. luzulifolia J. McMurphy 1910-6-8 s.n. Sonoma Near Shellville Comment
  CAS-BOT-BC309965  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-8-9 714 -A Sonoma 4-1/2 miles south of Santa Rosa Comment
  CDA6976  Hemizonia corymbosa T. C. Fuller 1981-9-9 20386 Sonoma Bodega Harbor subdivision just south of Bodega Bay. 0 Comment
  CDA20440  Hemizonia fitchii McArthur 2002-9-4 PDR P 092053 Sonoma Northern California; State park in the vicinity of Kenwood. 0 Comment
  CDA38362  Heracleum lanatum T. C. Fuller 1957-9-16 414 -57 Sonoma Jenner. 0 Comment
  HSC100953  Hesperevax sparsiflora var. brevifolia Peter Warner 2011-5-13 192 Sonoma Jenner Headlands, Dairy Field, northern area, S of Johnson Ranch, ~300 m E of Hwy. 1. 121 Comment
  HSC1230  Hesperocyparis sargentii L. S. Rose 1969-8-17 69096 Sonoma 4 mi. NE of Occidental, Harrison Grade 244 Comment
  CAS-BOT-BC123115  Hesperolinon spergulinum Henry Nicholas Bolander 1867-6-1 6568 Sonoma Cloverdale Comment
  JEPS82314  Hesperolinon spergulinum Roger Raiche 1983-6-19 30411 Sonoma The Cedars; slopes of Red Slide Creek 243 Comment
  UC66032  Hesperolinon spergulinum A. A. Heller 1902-6-24 5751 Sonoma near Santa Rosa Comment
  UC762260  Hesperolinon spergulinum Robert F. Hoover 1941-6-7 5305 Sonoma Occidental Comment
  RSA264760  Heterocodon rariflorum Peter Rubtzoff 1963-5-26 5133 Sonoma Bennett Mountain Lake. Comment
  SEINET10460647  Heterocodon rariflorum P. Rubtzoff 1963-5-26 Rubtzoff 5133 Sonoma BENNETT MTN LAKE, VERNALLY WET PARTIALLY SHADED GROUND Comment
  CAS-BOT-BC149831  Heteromeles arbutifolia Ynez Whilton Winblad 1941-6-20 s.n. Sonoma Between Ukiah and Santa Rosa, Highway 101 Comment
  UCD102191  Heteromeles arbutifolia Daniel Sanchez-Mata; Tomas Santamaria 2008-7-13 s.n. Sonoma Healdsburg. Alexander Valley. Pine Flat Road to the Geysers Area. Audubon Sanctuary. 400 Comment
  JEPS23929  Heuchera micrantha var. diversifolia Volney Rattan 1877-1 Sonoma Guerneville Comment
  UCSC000335  Heuchera pilosissima H. S. Yates 1934-3-21 3790 Sonoma near Bodega - Sebastopol 61 Comment
  CAS-BOT-BC424437  Heuchera pilosissima A. A. Heller 1938-5-14 15085 Sonoma Steep slope of a canyon near Bodega Bay Comment
  SBBG2695  Heuchera pilosissima H. and M. Dearing 1939-5-14 3368 Sonoma N of Fort Ross 91 Comment
  CAS-BOT-BC319702  Hieracium albiflorum John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 54006 Sonoma Fairfield Osborn Preserve of the Nature Conservancy 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UC496386  Hieracium albiflorum Merle Randall 1930-6-8 Sonoma Cazadero Comment
  CAS-BOT-BC319710  Hieracium albiflorum Marian L. Campbell 1920-8-1 s.n. Sonoma Monte Rio Comment
  SEINET9362826  Hieracium albiflorum Unknown 1995-6-8 2825 Sonoma 7 mi NW of Calistoga. Madrone-Douglas Fir-Quercus-Rhus assoc. Rdside rubble Botany 102, Botany Department, University of California, Davis. Comment
  UC866224  Hoita macrostachya Lewis S. Rose 1933-9-3 33358 Sonoma 2 mi w Petrified Forest Comment
  RSA144370  Holcus lanatus Roxana S. Ferris, Laura Lorraine 1961-6-14 13543 Sonoma Willow Creek road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UCD84893  Holcus lanatus Mary M. Hektner; Sue Dakuzaku 1974-6-4 20 a Sonoma Near State Hwy 1, Unit 24 Owners' Map, Sea Ranch. Comment
  CAS-BOT-BC320403  Holocarpha virgata Milo S. Baker 1945-7-17 11106 Sonoma Field S of Guerneville Hiwy about 6 mi from Santa Rosa Comment
  SEINET11843924  Holocarpha virgata W. Knight, Knight, I. 1988-1 6340 Sonoma Kortum Canyon, at county line 351 Comment
  UCD38483  Holodiscus discolor Beecher Crampton 1955-6-17 2957 Sonoma 5 miles west of Cazadero, road to Fort Ross. Comment
  JEPS128299  Holodiscus dumosus var. cedrorum Roger Raiche 2010-6-16 021 .10 Sonoma The Cedars, Campbell Ranch. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC315813  Holozonia filipes A. A. Heller 1902-7-1 5800 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC166738  Holozonia filipes Peter Rubtzoff 1971-6-23 6546 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA783727  Holozonia filipes Peter Rubtzoff 1961-7-22 4661 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC289286  Hordeum brachyantherum subsp. brachyantherum Peter Rubtzoff 1955-5-7 1819 Sonoma Ross Marsh Comment
  CAS-BOT-BC289293  Hordeum brachyantherum subsp. brachyantherum Barrett Anderson 1987-4-27 3464 Sonoma Petaluma, south of El Rose and west of D Street 120 Comment
  CAS-BOT-BC289295  Hordeum brachyantherum subsp. brachyantherum G. DeNevers 1981-5-9 1025 Sonoma At the Red Corral, McCann Homestead, Pepperwood Ranch Comment
  UCD85486  Hordeum brachyantherum subsp. brachyantherum Gerry North 1993-4 38 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At lower camping area, 50 m E of foot bridge. 365 Comment
  UCSB50253  Hordeum brachyantherum subsp. brachyantherum Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach; T6N R11W 13 Comment
  CAS-BOT-BC285008  Hordeum depressum L. R. Abrams 1918-4-27 6923 Sonoma Independence School near Healdsburg Comment
  CAS-BOT-BC285189  Hordeum marinum subsp. gussoneanum A. A. Heller 1902-6-4 5636 Sonoma Santa Rosa Comment
  UCD85931  Hordeum murinum subsp. leporinum A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3557 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  CAS-BOT-BC146521  Horkelia tenuiloba John Thomas Howell 1937-7-4 13083 Sonoma 5 miles north of Sebastopol Comment
  CAS-BOT-BC206158  Hosackia crassifolia Crawford Cooley 1992-5-7 s.n. Sonoma Near the Sonoma - Mendocino line ca. 8 airmiles west of Cloverdale on the Cooley Ranch Comment
  UCR265134  Hosackia gracilis Ann Howald, Christina Freeman 2015-4-13 3339 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, south shore, c. 300 feet north of intersection Pig Flat and Marsh trails 363 Comment
  CAS-BOT-BC400994  Hypericum anagalloides Carl B. Wolf 1927-9-2 1349 Sonoma One mile south of the Gualala River on coast road Comment
  CAS-BOT-BC401293  Hypericum perforatum D. E. Breedlove 1962-6-6 2898 Sonoma Along State Highway 128, 1.5 miles northwest of U. S. Highway 101 at Cloverdale 121 Comment
  UCD160833  Hypericum perforatum subsp. perforatum James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3355 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  JEPS128241  Hypochaeris glabra Roger Raiche 2000-5-4 078 .00 Sonoma The Cedars. Promentory, Cabin Site. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC316711  Hypochaeris radicata Greg de Nevers 1981-5-9 1022 Sonoma By the Red Corral at teh McCann Homestead, Pepperwood Ranch Comment
  UCD133475  Hypochaeris radicata Gerry North 1993-4 41 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. At lower camping area, 50 m. east of foot bridge. 365 Comment
  CAS-BOT-BC257366  Iris Peter Rubtzoff 1964-6-3 5343 Sonoma Bodega Bay Marsh. Comment
  POM168822  Iris douglasiana A. A. Heller, H. E. Brown 1902-3-29 5182 Sonoma Bodega Bay Comment
  SEINET3875273  Iris douglasiana James Faro 1962-4-14 20 Sonoma Salt Point Ranch, about 5 miles North of Fort Ross on Highway 1.; 0 Comment
  SEINET6882951  Iris douglasiana W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Ca. 1.3 miles north of Salmon Creek. Comment
  RSA137360  Iris fernaldii Lee W. Lenz, E. K. Balls 1951-5-3 16401 Sonoma About 1 mile east from Petrified Forest on road to Calistoga 610 Comment
  SDSU11754  Iris macrosiphon D. F. Howe 1963-5-23 3526 Sonoma 3.8 miles north of Cloverdale on #128 335 Comment
  UC810503  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  UCD84281  Isoetes howellii Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  CAS-BOT-BC57735  Isoetes howellii Peter Rubtzoff 1962-6-8 4890 Sonoma Bennett Mountain Lake Comment
  JEPS79612  Isoetes howellii Edward Lee 1974-5-11 Sonoma Laguna R.R. bridge Sebastopol Comment
  CAS-BOT-BC61923  Isoetes nuttallii Peter Rubtzoff 1951-6-7 138 Sonoma Western branch of the Upper Marsh Comment
  UC604130  Isoetes nuttallii Leo Koch 1938-4-1 61 Sonoma near Kenwood (small gulch off Adobe Canyon) Comment
  CAS-BOT-BC61928  Isoetes nuttallii Peter Rubtzoff 1951-7-14 468 Sonoma Lower part of the Upper Marsh Comment
  UCD82016  Isolepis levynsiana Ayzik Solomeshch 2009-5-12 s.n. Sonoma Sonoma Regional Park. Vernal Pool Plot SRP04. 37 Comment
  SEINET2064756 Image available Juglans californica Royal D. Suttkus 1967-6-25 67 -281 Sonoma Russian River, 1 mile E of Alexander Comment
  SEINET265720  Juglans californica Royal D. Suttkus 1967-6-25 67- 28 -1 Sonoma Russian River 1 mi E of Alexander Comment
  CAS-BOT-BC164386  Juncus balticus subsp. ater Peter Rubtzoff 1971-7-23 6606 Sonoma Sonoma: Laguna, Chileno Valley Comment
  SEINET7067269  Juncus bufonius A. G. Vestal 1947-5-13 s.n. Sonoma About 1.6 miles east of Annaplis on the Annapolis Road. Coordinate datum: NAD27. UTM 10, 425816mE, 4285229mN. Comment
  SEINET7042397  Juncus bufonius A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  CAS-BOT-BC157996  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5902 Sonoma Lichan Marsh Comment
  UCR244616  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-7-13 5920 Sonoma Upper Salmon Creek Marsh Comment
  CAS-BOT-BC157985  Juncus effusus subsp. pacificus Peter Rubtzoff 1964-8-26 5479 Sonoma Marsh 5 miles NE of Penngrove on Lichan Road 213 Comment
  RSA368222  Juncus hesperius Christopher Davidson 1977-6-20 6035 Sonoma Ridge Crest road, on Sea Ranch property south of Gualala River. 30 Comment
  RSA789174  Juncus hesperius Peter Rubtzoff 1969-8-14 6137 Sonoma Coleman Marsh. Comment
  POM261452  Juncus kelloggii Alice Eastwood, John Thomas Howell 1940-5-5 7866 Sonoma Summit of Bennett Valley Road. Comment
  UCD166334  Juncus laccatus Peter Rubtzoff 1968-7-13 5919 Sonoma upper Salmon Creek Marsh. Comment
  CAS-BOT-BC328115  Juncus lescurii Peter Rubtzoff 1954-8-9 1661 Sonoma Bodega Head Marsh. Comment
  UC1146699  Juncus occidentalis Freed W. Hoffman 1941-5-18 2180 Sonoma Franz Valley North Coast Ranges Comment
  RSA368303  Juncus oxymeris Christopher Davidson 1977-6-17 5882 Sonoma State Highway 12 ca. 3 miles west of Guerneville, along Russian River 15 Comment
  SEINET3880603  Juncus oxymeris M. L. Conrad, Dunn; LeDoux 1973-6-9 7081 Sonoma 0.6 mile west of Sonoma-Napa County Line on Hwy. 121.; 0 61 Comment
  CDA39261  Juncus phaeocephalus T. C. Fuller & D. L. Bristow 1957-12-17 s.n. Sonoma Horn Ave., south of Santa Rosa. 0 Comment
  UCD38691  Juncus tenuis Beecher Crampton 1957-5-16 4041 Sonoma 3 miles south of Healdsburg, along US Hwy. 101. Comment
  RSA45356  Keckiella corymbosa R. C. Bacigalupi 1947-8-17 2850 Sonoma On dirt road just above and east of Cazadero, (County road to Guernewood Park), in canyon of Austin Creek. Comment
  UC903716  Koeleria macrantha Milo S. Baker 1947-5-7 11733 Sonoma 2 mi n Kenwood (above house at Maplewood); n of Kenwood Comment
  CAS-BOT-BC273791  Koeleria pyramidata Peter Rubtzoff 1952-6-11 1250 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  RSA796383  Lactuca serriola Peter Rubtzoff 1958-9-6 3975 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  CAS-BOT-BC341710  Lagophylla ramosissima Milo S. Baker 1934-6-1 7687 Sonoma Along highway north of Warfield one-half mile Comment
  CAS-BOT-BC274320  Lagurus ovatus John H. Thomas 1976-6-15 18228 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CDA2215  Lagurus ovatus T. C. Fuller 1971-6-3 19897 Sonoma Sea Ranch. 0 Comment
  UCD63259  Lagurus ovatus Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 28 A Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. 30 Comment
  UC66154  Lamium amplexicaule A. A. Heller 1902-6-7 5658 Sonoma Santa Rosa Comment
  SD56365  Lamium purpureum Wayne Roderick 1962-3-20 Sonoma Near Sebastopol Comment
  CAS-BOT-BC474557  Lasthenia burkei Ayzik Solomeshch 2009-5-11 s.n. Sonoma NW of the city of Santa Rosa, S of River Rd and W of Fulton Rd, just N of Wood Rd, Sampling pool #4. 44 Comment
  JEPS86317  Lasthenia burkei Jack and Betty Guggolz 1988-5-10 931 Sonoma on e side Old Redwood Hwy. (just n of its intersection with Starr Road, Grill property) Comment
  UC1368723  Lasthenia burkei Peter Rubtzoff 1969-5-11 6035 Sonoma ne of Graton at end of Pinar Road; Laguna de Santa Rosa Comment
  CDA11328  Lasthenia californica G. F. Hrusa 1995-4-2 12038 Sonoma North Coast Biodiversity Arena; Franz Valley School Rd. approx. 1 mile NW of Napa/Sonoma county line. Comment
  CAS-BOT-BC346329  Lasthenia californica John H. Thomas 1976-6-15 18305 Sonoma Southern end of Sea Ranch, NW part of county, about 7 miles south of Gualala Comment
  CAS-BOT-BC385626  Lasthenia californica Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  POM55151  Lasthenia californica A. A. Heller, H. E. Brown 1902-4-15 5302 Sonoma Santa Rosa Creek Comment
  JEPS15071  Lasthenia californica subsp. californica A. A. Heller and H. E. Brown 1902-4-15 Sonoma Santa Rosa Creek Comment
  UC174195  Lasthenia californica subsp. californica Katharine Brandegee 1905-6-1 Sonoma between Santa Rosa and Sebastopol Comment
  UC1363833  Lasthenia californica subsp. macrantha Robert Ornduff 1958-4-30 4968 Sonoma just n of mouth Salmon Creek (between road (Highway 1) and ocean); Sonoma Coast Park Comment
  UCD33659  Lasthenia californica subsp. macrantha Beecher Crampton 1971-6-6 8720 Sonoma Carmet, Sonoma Coast State Park. Comment
  UCD133685  Lasthenia californica subsp. macrantha Mary M. Hektner 1976-12-14 278 Sonoma overlooking Black Point Beach; Unit 1 Owners' Map Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC355533  Lasthenia glaberrima Peter Rubtzoff 1971-5-30 3492 Sonoma 4.25 mi. west of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC355535  Lasthenia glaberrima Peter Rubtzoff 1972-5-25 6755 Sonoma Laguna, Chileno Valley Comment
  UCD133795  Lasthenia gracilis G. F. Hrusa 1995-4-2 12038 Sonoma along Franz Valley School Road, approx. 1 mile NW of Napa/Sonoma county line. 250 Comment
  RSA19275  Lasthenia minor Jens Clausen 1935-5-24 1084 Sonoma 5 miles S of Jenner. Comment
  CAS-BOT-BC164646  Lathyrus Peter Rubtzoff 1971-5-30 6467 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  CAS-BOT-BC164395  Lathyrus Peter Rubtzoff 1971-9-1 6672 Sonoma Spring Creek Reservoir area east of Santa Rosa. Comment
  CDA20555  Lathyrus hirsutus A. Stephens 2005-6-16 PDR 1293626 Sonoma North Coast; Petaluma Hill Rd, Petaluma. 44 Comment
  CAS-BOT-BC204991  Lathyrus jepsonii var. californicus A. A. Heller 1902-6-11 5692 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  RSA130892  Lathyrus littoralis E. K. Balls 1958-7-20 23583 Sonoma Sonoma Coast State Park off State Hwy. 1. 3 Comment
  UC864425  Lathyrus vestitus var. alefeldii Marcus E. Jones, A. M. 1882-7-17 3576 Sonoma Duncan's Mills Comment
  UCD106545  Lathyrus vestitus var. ochropetalus Christine Lee 1993-4-24 85 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Hillside Trail about 2 air miles S of Bald Mtn. Midslope on Hillside Trail. 411 Comment
  UC15380  Lathyrus vestitus var. vestitus unknown 1862-4-1 966 Sonoma near Sonoma Comment
Read comments Jan 20 2011
  UC15384  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-18 966 Sonoma near Sonoma Comment
  UC931193  Lathyrus vestitus var. vestitus C. L. Hitchcock 1950-6-6 19257 Sonoma 2 mi n Fort Ross Comment
  UCR244751  Layia Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC323230  Layia chrysanthemoides David D. Keck 1931-4-1 992 Sonoma 2 miles N of Sears Point (9 miles S of Sonoma), southern Sonoma County. 10 Comment
  CAS-BOT-BC323236  Layia chrysanthemoides John Thomas Howell 1931-4-18 6426 Sonoma 8 miles N of Bay Comment
  CAS-BOT-BC323237  Layia chrysanthemoides John Thomas Howell 1931-4-1 6036 Sonoma 9 miles SW of Sonoma on road to San Rafael. Comment
  SEINET7545196  Layia chrysanthemoides subsp. maritima J. Clausen 1935-1 1090 Sonoma 6.2 miles S of Jenner, coastal bluffs at a little bay Comment
  CAS-BOT-BC379622  Layia platyglossa J. Clausen 1935-5-24 1094 Sonoma 6.5 miles south of Jenner Comment
  JEPS18021  Layia platyglossa George B. Rossbach 1955-3-19 547 Sonoma w rim of Bodega Head 45 Comment
  UCSB50243  Layia platyglossa Gray, John 1976-5-1 Sonoma Bluff above Blind Beach, Sonoma Coast State Beach, 1/2 mile west of Highway 1; T7N R11W 60 Comment
  CAS-BOT-BC274361  Leersia oryzoides Peter Rubtzoff 1961-10-15 4759 Sonoma Vacation Beach, 2 mi. below Guerneville Comment
  RSA0028899  Lemna minor Peter Rubtzoff 1961-6-23 4655 Sonoma Bennett Mountain Lake Comment
  UCD148503  Lemna minor Peter Rubtzoff 1965-11-9 5669 Sonoma Willow Creek Marsh. Comment
  UCR256956  Lemna minuta Peter Rubtzoff 1960-9-14 4552 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  UCR256959  Lemna minuta Peter Rubtzoff 1962-5-11 4815 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  CAS-BOT-BC527286  Lemna minuta Peter Rubtzoff 1964-8-20 5467 Sonoma One mile southeast of jenner near crossing of Hwys. 1 and 12 Comment
  UCR255071  Lemna perpusilla Peter Rubtzoff 1961-8-24 4709 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River 3 Comment
  RSA0025207  Lemna perpusilla Peter Rubtzoff 1961-8-24 4709 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  UCR256276  Lemna valdiviana Peter Rubtzoff 1961-8-24 4710 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River 3 Comment
  UCR256958  Lemna valdiviana Peter Rubtzoff 1958-8-23 3899 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 31 Comment
  UC1784119  Lepechinia calycina Ethel Crum 1930-7-13 815 Sonoma Mt. St. Helena, S shoulder Comment
  UCD161377  Lepechinia calycina James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Crest of ridge between Squaw Creek and Big Sulphur Creek. (Elevation and exact location estimated by label maker.) 731 Comment
  SEINET12329980  Lepechinia calycina F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -190 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road, between Jimtown & Mercuryville 630 Comment
  UCD115699  Lepidium latifolium John Thomas Howell 1966-6-2 41550 Sonoma South of Schellville near Black Pt. road. Comment
  CHSC28849  Lepidium nitidum Jane A. Rogers 1979-4-14 9 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/4 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  CAS-BOT-BC273997  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1961-10-15 4760 Sonoma Vacation Beach, 2 miles below Guerneville Comment
  JEPS117077  Leptosiphon acicularis Peter Warner 2010-5-6 143 Sonoma Annadel State Park, ~200 m N12 degrees E of Rough Go - Live Oak Trail junction in rocky grassland Comment
  POM179768  Leptosiphon androsaceus J. T. Howell 1930-6-8 5254 Sonoma 1 mile east of Bodega Bay Comment
  SBBG5965  Leptosiphon androsaceus H. and M. Dearing 1939-5-14 3354 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC226695  Leptosiphon jepsonii Rimo Bacigalupi 1926-5-2 1366 Sonoma Cazadero Comment
  CAS-BOT-BC226698  Leptosiphon jepsonii Alice Eastwood; John Thomas Howell 1938-5-15 5508 Sonoma Near Mark West Springs Comment
  JEPS127611  Leptosiphon jepsonii Estelle P. Clifton 2016-4-14 Sonoma 4611 Porter Creek Road, Santa Rosa Comment
  CAS-BOT-BC499111  Leptosiphon parviflorus Ann Howald 2015-4-13 3343 Sonoma Inner North Coast Ranges: Annadel State Park, Ledson Marsh, NW corner, S of Marsh Trail 362 Comment
  CAS-BOT-BC324193  Lessingia hololeuca John Thomas Howell 1931-9-26 8090 Sonoma 2 miles from Monte Rio on road to Camp Meeker Comment
  CAS-BOT-BC283530  Leymus X vancouverensis Peter Rubtzoff 1960-10-29 4583 Sonoma Bodega Harbor Marsh. Saline part of the Marsh and along dirt road Comment
  CAS-BOT-BC273567  Leymus californicus M. S. Baker 1942-5-23 10198 Sonoma 2 1/2 miles west of Bodega town turning right in town Comment
  JEPS116507  Leymus californicus Peter Warner 2009-6-3 104 Sonoma Poff Ranch, along N unfenced boundary, adjacent to or on Willow Creek (Calif. State Parks Property), upper east Pomo Canyon, along logging road 130 Comment
  CAS-BOT-BC451695  Lilaea scilloides Peter Rubtzoff 1972-6-11 6775 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC451698  Lilaea scilloides John Thomas Howell 1930-6-8 5238 Sonoma Bodega Road 3 miles east of Valley Ford Comment
  CAS-BOT-BC451706  Lilaea scilloides Greg de Nevers 1997-5-30 11011 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC451693  Lilaea scilloides Peter Rubtzoff 1951-8-5 606 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC451714  Lilaea scilloides Peter Rubtzoff 1971-7-9 6593 Sonoma 5 mi. north of Sears Point. Comment
  RSA304185  Lilium maritimum S. Ganley 1971-5-31 691 Sonoma North of Fort Ross. 46 Comment
  CAS-BOT-BC133000  Lilium rubescens A. T. Graff 1925-6-7 s.n. Sonoma Trospers Comment
  HSC15782  Limnanthes douglasii L. S. Rose 1965-4-4 65020 Sonoma Sonoma 24 Comment
  SEINET6205134  Limnanthes douglasii L. S. Rose 1965-1 65020 Sonoma Sonoma Comment
  UC17900  Limnanthes douglasii subsp. douglasii W. H. Brewer 1862-4-18 972 Sonoma near Sonoma Comment
  UC726862  Limnanthes douglasii subsp. douglasii A. A. Heller 1940-4-22 15553 Sonoma field between East Windsor and West Windsor Comment
  UC971868  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-3-7 1117 Sonoma along Sonoma-Glen Ellen-Santa Rosa road; ditch at crossroad Comment
  CDA12906  Limnanthes douglasii subsp. nivea G. F. Hrusa, R. Gross, A. Buckmann 1996-3-29 12740 Sonoma North Coast Biodiversity Arena; Napa Valley bottom, immediately S of Tubbs Lane, approx. 2 m. NW of Calistoga. Comment
  RSA177974  Limnanthes douglasii subsp. nivea Robert F. Thorne 1965-4-19 34274 Sonoma Titus Ranch, Valley Ford. 18 Comment
  UCD21131  Limnanthes douglasii subsp. rosea Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-6 306 Sonoma Todd Road Ecological Reserve, W of Highway 101, N of Todd Road. Pool #TOD001. UTMs 10S0519445; 4248904. Comment
  UC1330360  Limnanthes vinculans R. Ornduff 1965-5-8 6864 Sonoma at junction of Hessel Road and Highway 116 Comment
  UCSC008591  Limnanthes vinculans Randall Morgan 2003-1 Sonoma Comment
  CAS-BOT-BC258915  Limosella Peter Rubtzoff 1970-8-18 6310 Sonoma 5 miles north of Sears Point. Comment
  UC72067  Linanthus androsaceus Milo S. Baker 1903-3-19 Sonoma Sonoma Creek Comment
  SEINET6969972  Linanthus androsaceus W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma About 7.8 miles south-southeast of Annapolis. Northwest Sonoma County Comment
  UC908783  Linanthus jepsonii Herbert L. Mason 1928-4-13 4337 Sonoma Reibli School Comment
  UC908795  Linanthus jepsonii Herbert L. Mason 1928-4-13 4339 Sonoma Reibli School, near springs Comment
  UC730032  Linanthus jepsonii Leo F. Koch 1940-4-22 832 Sonoma 15 mi from Geysers; Sulfur Creek Canyon Comment
  UC133827  Linanthus parviflorus Katharine Brandegee Jun 1905 Sonoma between Santa Rosa and Sebastopol Comment
  UC52689  Linanthus parviflorus unknown 1898-4-23 Sonoma Santa Rosa Creek Canyon Comment
  CAS-BOT-BC540822  Linum Peter Rubtzoff 1974-6-2 7522 Sonoma Upper Green Valley Marsh. Comment
  SEINET12030991  Lithocarpus densiflorus F. H. Utech 1988-1 88 -209 Sonoma 6 mi W of junction of Willow Creek Road & Coleman Valley Road on former, along Willow Creek 40 Comment
  RSA476678  Lithocarpus densiflorus var. densiflorus Christopher Davidson 1977-6-17 5874 Sonoma State Hwy 12, ca. 3 mi. W of Guerneville. Along Russian River. 15 Comment
  JEPS46181  Lithophragma affine Eleanor Armstrong 1933-4-15 734 Sonoma Bodega Hill 18 Comment
  UC1127211  Lithophragma affine E. Armstrong 1934-3-26 913 Sonoma 1 mi w Camp Meeker; Sebastopol Quad. Comment
  UC11905  Lithophragma bolanderi F. T. Bioletti 1892-1 Sonoma Sonoma (?) Comment
  CAS-BOT-BC435673  Lithophragma heterophyllum G. de Nevers 1993-3-24 10334 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Weimar Canyon 304 Comment
  CAS-BOT-BC435675  Lithophragma heterophyllum Alice Eastwood 1918-5-1 6814 Sonoma Mt. St. Helena Comment
  UCD102721  Lithophragma heterophyllum Frederica Bowcutt 1994-5-1 1759 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa; 2.5 air miles NE of Kenwood. Along Sonoma Creek just E of Bear Creek near bridge over Sonoma Creek. 198 Comment
  CAS-BOT-BC437153  Lithophragma heterophyllum J. W. Congdon 1883-4-1 19 Sonoma Petaluma Santa Rosa Comment
  UC1093939  Logfia filaginoides Herbert L. Mason 1947-5-4 13211 Sonoma near Kenwood (burned area of Hood Mountain); Hood Mountain Comment
  UCD167964  Logfia filaginoides James Neilson 1977-6-12 3919 Sonoma Mayacmas Mountains, McMicking Ranch, well site 2. (McMicking Ranch is also known as Santa Angelina Ranch and is in the vicinity of Knights Valley and Coon Creek.) Comment
  UC573666  Lolium multiflorum H. S. Yates 1936-5-16 5581 Sonoma 1 mi ne Graton; Sebastopol Quadrangle Comment
  CAS-BOT-BC283284  Lolium multiflorum John H. Thomas 1966-5-8 11598 Sonoma 1.4 miles W of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa Comment
  UCD66201  Lolium multiflorum Collector Unknown 1941-3-1 Sonoma Fremont School, Santa Rosa. Comment
  UCR218641  Lolium perenne subsp. multiflorum George K. Helmkamp, E. A. Helmkamp 2010-6-4 16221 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  CAS-BOT-BC269193  Lolium temulentum K. Wagnon 1939-4-20 181 Sonoma Across the road from Santa Rosa Country Club, about 5 miles east of Santa Rosa Comment
  UCD167355  Lomatium californicum James Neilson 1981-5-28 4036 Sonoma Mayacmas Mountains. The Geysers. Vicinity of PG and E lookout. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA452569  Lomatium caruifolium Christopher Davidson 1977-6-20 6011 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  SEINET12118785  Lomatium dasycarpum Unknown 1953-1 3448 Sonoma Mark West road, 1 mi SW of Petrified Forest Comment
  UCD127044  Lomatium dasycarpum subsp. dasycarpum Frederica Bowcutt 1994-5-21 1806 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, about 10 air miles E of Santa Rosa, about 1.5 air miles N of Kenwood, about 18 air miles NW of Napa. Along meadow trail, approx. 3/8 mile from trailhead. 1300 Comment
  SJSU10970  Lomatium nudicaule T. A. Wayne 1962-4-21 Sonoma Bennett Valley by Bennett Valley Rd 3 mi S of Santa Rosa Comment
  UC1076677  Lomatium utriculatum C. Ritchie Bell 1952-3-19 1247 Sonoma top of Larksur Rock Bodega; , Larkspur Rock Comment
  UC333728  Lomatium utriculatum Hy. Edwards May 1877 316 Sonoma Knights Valley Comment
  CAS-BOT-BC540801  Lonicera Peter Rubtzoff 1962-4-11 4787 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC240650  Lonicera hispidula Alice Eastwood 1915-6-5 4565 Sonoma Petrified Forest Comment
  CAS-BOT-BC240649  Lonicera hispidula Mary P. Wells 1985-6-14 518 Sonoma Sea Ridge Road, north of Pilots Reach, The Sea Ranch Comment
  SEINET12329227  Lonicera hispidula var. vacillans W. Knight, Knight, I. 1984-1 5114 Sonoma Gualda Point Regional Park Comment
  CAS-BOT-BC243998  Lonicera involucrata var. ledebourii Marcus E. Jones 1882-7-17 2739 Sonoma Duncan's Mills Comment
  CAS-BOT-BC243995  Lonicera involucrata var. ledebourii Mary P. Wells 1982-8-24 s.n. Sonoma Salt Point State Park Comment
  CDA31015  Lotus crassifolius D. G. Kelch, Troy McGregor 2010-8-22 10 .346 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  SEINET6932526  Lotus heermannii Wanda P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head, at middle of the peninsula. Comment
  UC1277995  Lotus junceus var. biolettii B. Crampton 1957-7-22 4370 Sonoma 0.9 mi s of Stewart's Point (along State Highway 1); State Highway 1 Comment
  RSA568548  Lotus unifoliolatus E. A. Purer 1932-7-24 4071 Sonoma West of Santa Rosa. Comment
  UC81110  Lotus wrangelianus Alice Eastwood 1899-6-9 Sonoma Bodega Point Comment
  CDA9765  Ludwigia grandiflora subsp. hexapetala Erik Hawk 2007-10-1 s.n.-LWA Sonoma Wildlife Area, between Guerneville Rd. and Occidental Rd., Laguna de Santa Rosa. Comment
  UCD65934  Ludwigia hexapetala B. J. Grewell 2006-11-10 06- 91 -LU Sonoma Russian River just downstream of seasonal dam, Veteran's Memorial Park, Healdsburg. Access via kayak. 23 Comment
  UCD66026  Ludwigia hexapetala B. J. Grewell 2006-8-24 06- 51 -LU Sonoma Russian River at Sunset Beach, downstream of vacation home area. 12 Comment
  CAS-BOT-BC258913  Ludwigia palustris Peter Rubtzoff 1969-8-24 6149 Sonoma Pond on River Road, 3 miles west of Fulton. Comment
  RSA800588  Ludwigia palustris Peter Rubtzoff 1958-8-9 3858 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  RSA800589  Ludwigia palustris Peter Rubtzoff 1966-6-26 5763 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC249320  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-7-4 1527 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC251071  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-8-2 1628 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC157696  Ludwigia peploides Peter Rubtzoff 1955-8-21 2091 Sonoma Vacation Beach, near Guerneville along Russian River, below the dam. Comment
  CAS-BOT-BC164062  Ludwigia peploides Peter Rubtzoff 1958-8-16 3881 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road) Comment
  SBBG60088  Ludwigia peploides L. Rowntree 1931-8-26 Sonoma near Sonoma Comment
  CAS-BOT-BC201226  Lupinus A. A. Heller 1937-5-1 s.n. Sonoma Base of the bluff north of the town of Bay, Bodega Bay Comment
  SEINET10488426  Lupinus albifrons Melvin L. Conrad, David B. Dunn; Katherine L. Morris 1973-6-8 Conrad 7077 Sonoma Roadside along hwy 1, 3.4 miles n of jenner 91 Comment
  UCD167634  Lupinus albifrons James A. Neilson Jr. 1977-3-7 3846 Sonoma Mayacmas Mountains. Near soulth base Mt. St. Helena. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCR2994  Lupinus albifrons Wm. Horn Jr. 1963-4-10 630410- 01 Sonoma Coast Range, 0.25 mi N on Jonive Rd. at a point 5 mi west of Sebastopol on Bodega Hwy 168 Comment
  SEINET12165153  Lupinus albifrons W. Knight, Knight, I.; Ellman, P.; Petersen, J. 1986-1 5248 Sonoma Bowerie Aubdubon Preserve, betw Cavedale Rd adn Stuart Canyon .5mi off hwy 12 Comment
  UC1299160  Lupinus albifrons Freed W. Hoffman 1947-2-28 758 Sonoma road from Great Eastern Quicksilver Mines to Austin's Ranch at top of grade near Guerneville; North Coast Ranges, near Guerneville Comment
  CAS-BOT-BC195979  Lupinus albifrons var. albifrons Alice Eastwood 1893-4-27 s.n. Sonoma Hood Mt. Comment
  UCD106015  Lupinus albifrons var. albifrons Frederica Bowcutt 1996-5-24 2158 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma/Rattlesnake Creek confluence on small knoll. 381 Comment
  CAS-BOT-BC196043  Lupinus albifrons var. collinus A. A. Heller; H. E. Brown 1902-3-27 5162 Sonoma Western base of Mt. Hood Comment
  CAS-BOT-BC196045  Lupinus albifrons var. collinus A. A. Heller 1940-5-17 15632 Sonoma About 2 miles east of Bodega Bay, near State Highway #1 Comment
  RSA66919  Lupinus albifrons var. collinus E. K. Balls 1951-5-3 16404 Sonoma Ca. 1 mi. e. from Petrified forest on rd. to Calistoga. 610 Comment
  CAS-BOT-BC196461  Lupinus arboreus Mrs. H. C. Cantelow 1940-4-20 s.n. Sonoma South end of Russian River Bridge on highway 1 Comment
  RSA0070145  Lupinus arboreus Daisie Huang 2006-5-30 06053016 Sonoma Bodega Marine Laboratory. In parking lot. 3 Comment
  UC1197261  Lupinus bicolor Joseph P. Tracy 1933-5-1 12127 Sonoma Knight's Valley 152 Comment
  UCD150127  Lupinus bicolor Ayzik Solomeshch 2009-5-11 s.n. Sonoma Northwest of the city of Santa Rosa, S of River Rd and W of Fulton Rd. Just N of Wood Rd. Sampling pool #4. 44 Comment
  HSC14954  Lupinus bicolor S. N. Wiemeyer 1932-4-13 12 Sonoma 2.1 mi. N of jct. of Calistoga Rd. and Hwy. 12 274 Comment
  UC1076235  Lupinus formosus H. L. Mason June 1930 5655 Sonoma mouth of Gualala River Comment
  SEINET10485343  Lupinus formosus P. Rubtzoff 1974-6-22 Rubtzoff 7624 Sonoma Todd road, 1.5 mi from hwy 116 and .5 mi from (w of) llano road. Vernally wet, Now dry meadow. Comment
  RSA372144  Lupinus formosus var. formosus David B. Dunn, M. L. Conrad, LeDoux 1973-6-9 20712 Sonoma 5.3 miles east of the junction of Highway 101 and Highway 116 on 116. Comment
  SEINET10490759  Lupinus formosus var. formosus David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-9 Dunn 20712 Sonoma Coll 5.3 mi e of the jct of hwy 101 and hwy 116 on 116. Rolling hills of grasses. Along the roadside in clay banks. Comment
  UCD160313  Lupinus latifolius James A. Neilson Jr. 1975-5-23 3200 Sonoma Big Sulphur Creek, Abril property. ( (Elevation and coordinates estimated by label maker.) 388 Comment
  SD88508  Lupinus microcarpus var. microcarpus Darley F. Howe 1972-6-29 Sonoma North of Jenner Comment
  UCD108973  Lupinus nanus Mary M. Hektner 1975-4-27 185 Sonoma next to parking lot; Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD151182  Lupinus nanus James A. Neilson Jr. 1974-4-16 3064 Sonoma Mayacmas Mountains. Sulphur bank number 13. (Elevation estimated using Google Earth by label maker.) 487 Comment
  RSA0023080  Lupinus nanus subsp. nanus Peter Rubtzoff 1974-5-18 7411 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  SEINET7040132 Image available Lupinus polycarpus A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  CAS-BOT-BC207260  Lupinus sericatus Greg de Nevers 1996-4-19 10794 Sonoma In Devil's Kitchen outcrops on Oak Hill Ranch east of Chalk Mountain, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 487 Comment
  CAS-BOT-BC207258  Lupinus sericatus John Thomas Howell 1935-5-5 12610 Sonoma Near summit of Trinity P.O. Road, Mt. Hood Range Comment
  SEINET10489101  Lupinus variicolor H. Dearing, M. Dearing 1939-5-14 Dearing 3349 Sonoma From coast on russian river. Prostrate, flower stalks ascending, leaves green Two and a half inches long, banner whitish, wings deep blue. Comment
  UCD109667  Lupinus variicolor Eric Davidson 1972-5-27 391 Sonoma near University of California's Bodega Marine Lab, Bodega Head. Comment
  CAS-BOT-BC210022  Luzula Peter Rubtzoff 1962-4-11 4793 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) Comment
  UCD160060  Luzula subsessilis James A. Neilson Jr. 1975-4-9 3664 Sonoma Mayacmas Mountains, Hilary Farms. (Exact location unknown. Elevation and coordinates estimated by label maker from Nielson 3126 near Cascade Creek.) 609 Comment
  CAS-BOT-BC441394  Luzula subsessilis Mrs. H. C. Cantelow 1939-4-10 s.n. Sonoma About 1.6 miles S of Russian River Bridge Comment
  RSA0015993  Lythrum hyssopifolia Peter Rubtzoff 1958-7-20 3784 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road). Comment
  UCR244645  Madia Peter Rubtzoff, Nancy Harrison 1974-7-13 7669 Sonoma Upper Green Valley Marsh Comment
  RSA785884  Madia Peter Rubtzoff, Nancy Harrison 1974-7-13 7669 Sonoma Upper Green Valley Marsh. Comment
  UC1069880  Madia anomala H. S. Yates 1934-4-22 3851 Sonoma 2 mi s of Mark West; Calistoga Quadrangle Comment
  UC455510  Madia elegans I. J. Condit 1908-8-14 Sonoma Sebastopol Comment
  CAS-BOT-BC344031  Madia elegans Peter Rubtzoff 1951-7-21 524 Sonoma 1 mile southeast of Forestville Comment
  POM56176  Madia elegans subsp. densifolia M. Alice King 1896-10 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC344549  Madia exigua Peter Rubtzoff 1952-6-10 1207 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  SD254541  Madia exigua Ann Howald, Christina Freeman 2015-1-1 3414 Sonoma Inner North Coast Ranges: Annadel State Park, Lawndale wetlands, northeast of intersection of Lawndale and Marsh trails (Kenwood 7.5'Q) 370 Comment
  CAS-BOT-BC166733  Madia gracilis Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh. Comment
  UC598735  Madia gracilis John Bright 1936-5-2 13114 Sonoma near Healdsburg Comment
  UCD55336  Madia gracilis Ellen Dean 2006-6-28 3180 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  CAS-BOT-BC343464  Madia gracilis G. DeNevers 1981-5-5 926 Sonoma Pepperwood Ranch. W arm of Garrison Canyon Comment
  CAS-BOT-BC345224  Madia sativa David D. Keck 1933-11-6 2645 Sonoma 1 mi. N. of Freestone on road to Occidental Comment
  RSA790979  Madia sativa Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh. Comment
  RSA790981  Madia sativa Peter Rubtzoff 1962-6-13 4894 Sonoma Freestone Marsh. Comment
  UCD132830  Madia sativa Frederica Bowcutt 1997-7-18 2184 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  CAS-BOT-BC345259  Madia sativa David D. Keck 1933-11-6 2653 Sonoma 6.5 mi. N. of Jenner Comment
  SEINET12052827  Maianthemum racemosum subsp. amplexicaule F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -55 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC511573  Maianthemum racemosum subsp. amplexicaule A. A. Heller; H. E. Brown 1902-4-11 s.n. Sonoma Bodega Bay Comment
  CAS-BOT-BC511575  Maianthemum racemosum subsp. amplexicaule G. de Nevers 1981-3-21 578 Sonoma Jenner. Mouth of Russian River. Coastal Brush. Comment
  HSC15644  Maianthemum racemosum subsp. amplexicaule James Faro 1962-4-20 24 Sonoma 5 mi. N of Geurneville on Old Cazadero Rd. Comment
  CAS-BOT-BC511492  Maianthemum stellatum Greg de Nevers 1981-6-27 1669 Sonoma On walk up through the Devil's Kitchen, Kellog Ranch, starting from the bottom of the hill in Franz Valley, along Franz Valley Road, Pepperwood Ranch Comment
  UCD116558  Malva nicaeensis Mary M. Hektner 1976-4-3 240 Sonoma Along fence and road at Sea Ranch Association Office, Sea Ranch, near State Highway 1. Comment
  UCD107583  Marah fabacea Frederica Bowcutt 1994-5-1 1775 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. Adobe Canyon, along Goodspeed trail about 1/8 mile from trail head on Adobe Canyon Rd. 198 Comment
  UCD107655  Marah fabacea Lewis S. Rose 1962-4-18 62026 Sonoma Laguna de Santa Rosa, 2 mi. ne. of Graton. 30 Comment
  RSA128555  Marah oregana P. H. Raven 1950-4-6 1601 Sonoma Lower slopes of Rincon Ridge. Comment
  CAS-BOT-BC348313  Matricaria occidentalis Peter Rubtzoff 1972-5-25 6772 Sonoma Laguna, Chileno Valley Comment
  CAS-BOT-BC268110  Medicago Peter Rubtzoff; Nancy Harrison 1974-9-7 7874 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  CAS-BOT-BC268116  Medicago Peter Rubtzoff 1956-9-14 2890 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC262977  Medicago Peter Rubtzoff 1968-8-31 5945 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA0009775  Medicago polymorpha Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma Comment
  UCD107847  Medicago polymorpha P. B. Kennedy 1915-5-31 s.n. Sonoma Del Mar. Comment
  UCD151224  Melica californica James A. Neilson Jr. 1974-5-17 2977 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, along road to PG and E geothermal units 9 and 10, northeast Sonoma County. (Elevation estimated using Google Earth by label maker.) 1005 Comment
  UCD87156  Melica californica David L. Morgan 1956-4-25 s.n. Sonoma 2 mi. W. of Petaluma on 'I' st. Ext. Comment
  UCD87211  Melica californica R. Tofsrud 1941-4-1 293 Sonoma Pasture hills above Russian Gultch. Comment
  CAS-BOT-BC281273  Melica geyeri Peter Rubtzoff 1952-6-10 1202 Sonoma NE slopes of Fitch Mountain, near Healdsburg Comment
  CAS-BOT-BC281275  Melica geyeri G. DeNevers 1981-5-5 950 Sonoma Pepperwood Ranch. On the trail to the Studio Comment
  CAS-BOT-BC281278  Melica geyeri G. DeNevers 1981-5-9 1108 Sonoma Pepperwood Ranch. S of Redwood Canyon Comment
  UCD160976  Melica geyeri James A. Neilson Jr. 1975-7-8 3338 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  UCD87349  Melica geyeri R. Tofsrud 1941-4-1 281 Sonoma Parker Hill, Santa Rosa. Comment
  RSA123514  Melica harfordii H. S. Yates 1937-5-31 6563 Sonoma 1 mile WSW of Petrified Forest. 274 Comment
  UCD36691  Melica harfordii Beecher Crampton 1955-6-17 2949 Sonoma 4.5 miles S of Cazadero. Comment
  UCD87571  Melica harfordii H. S. Yates 1937-5-31 6563 Sonoma 1 mile SW of Petrified Forest 274 Comment
  UCD36634  Melica harfordii Beecher Crampton 1955-6-8 2827 Sonoma Sonoma County, 7 miles northwest of Calistoga, along State Highway 128. Comment
  CAS-BOT-BC262452  Melica subulata Peter Rubtzoff 1959-6-6 4104 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC262552  Melica torreyana G. DeNevers 1981-5-15 1182 Sonoma Pepperwood Ranch. In first big left hand Canyon off N arm of Garrison Canyon Comment
  RSA129328  Melica torreyana H. S. Yates 1937-5-30 6542 Sonoma 3 miles WNW of Graton. 61 Comment
  SEINET6205052  Melica torreyana L. S. Rose 1965-1 65022 Sonoma 1 mi N of Sonoma Comment
  UCD144429  Melica torreyana Frederica Bowcutt 1994-6-24 1883 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Lower Bald Mountain Trail. 396 Comment
  UCD89197  Melica torreyana R. Tofsrud 1941-3-1 302 Sonoma S. R. Creek Cy. Comment
  UCD89201  Melica torreyana R. Tofsrud 1942-4-1 300 Sonoma Stream bank 3 mi. east of Mark West resort on same road. Comment
  POM348173  Melilotus albus Christopher Davidson 1977-6-17 5877 Sonoma State Highway 12 ca. 3 miles west of Guerneville, along Russian River 15 Comment
  CAS-BOT-BC268121  Melilotus indicus Peter Rubtzoff 1953-11-1 1432 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC166905  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region. Vacation Beach, near Guerneville; Russian River. Comment
  CAS-BOT-BC376288  Mentha Greg de Nevers 1992-6-26 10197 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  RSA785662  Mentha Peter Rubtzoff 1954-8-11 1686 Sonoma Guerneville Marsh. Comment
  CHSC112548  Mentha Peter Pubtzoff 1962-7-4 4965 Sonoma Healdsburg region. Fitch Mts. Grove, 2 mi east of Healdsburg. Russian River. Comment
  RSA785215  Mentha Peter Rubtzoff 1956-9-15 2899 Sonoma Atascadero Creek Marsh. Comment
  RSA785671  Mentha Peter Rubtzoff 1960-9-17 4571 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  RSA788368  Mentha Peter Rubtzoff 1960-10-29 4584 Sonoma Laguna de Santa Rosa, east of Graton (btwn. Occidental and Guereville Road). Comment
  UCD163793  Mentha aquatica Peter Rubtzoff 1962-10-9 s.n. Sonoma Brooks Gulch Marsh. Comment
  UC353819  Mentha pulegium Milo S. Baker 1928-6-28 3194 b Sonoma Pitkins Farm Comment
  RSA784551  Mentha spicata Peter Rubtzoff 1968-8-24 5932 Sonoma Upper Salmon Creek Marsh. Comment
  CAS-BOT-BC166908  Mentha spicata Peter Rubtzoff 1961-8-24 4708 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC322609  Micropus amphibolus Herbert L. Mason 1934-4-28 8081 Sonoma Jensen's Ranch, head of Dohrman Creek four miles west of Healdsburg Comment
  RSA52653  Micropus californicus var. californicus I. L. Wiggins 1949-4-30 12069 Sonoma 4 miles W of Calistoga, just W of country line. Comment
  SEINET11807614  Micropus californicus var. californicus F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -187 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 630 Comment
  CAS-BOT-BC157685  Microseris Peter Rubtzoff; H. A. Froebe 1971-5-30 6464 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  SEINET11601909 Image available Microseris bigelovii P. Kamb, F. Chisaki 1952-6-21 2304 Sonoma Fort Ross Comment
  SEINET7096778  Microseris douglasii A. G. Vestal 1955-5-7 s.n. Sonoma Facendini Lane.Ca 1 mile east of Occidenta. NAD27, 38.4070? deg. , -122.9289?_ (converted to WGS84) UTM Zone 10, 506210mE, 4250769mN. Comment
  SEINET11806899  Microseris douglasii F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -174 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC348855  Microseris douglasii subsp. douglasii John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53980 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UCD118900  Microsteris gracilis Botany 102 Students 1993-4-24 92 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Hillside Trail. 411 Comment
  CAS-BOT-BC311872  Mimulus Peter Rubtzoff 1976-6-18 8656 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC320503  Mimulus Peter Rubtzoff 1955-7-9 1929 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC320508  Mimulus Peter Rubtzoff 1964-5-31 5326 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg, along Russian River. Comment
  RSA0025386  Mimulus Peter Rubtzoff 1964-7-29 5442 Sonoma Brooks Gulch Marsh. Comment
  UC446449  Mimulus arvensis Milo S. Baker 1898-5-7 637 Sonoma Glen Ellen Comment
  SEINET12337127  Mimulus aurantiacus C. F. Quibell 1976-1 1377 Sonoma Marshall-Petaluma Rd Comment
  RSA550833  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-4 1111 Sonoma 7.0 mi S of Mendocino co. line along Hwy 1; 0.5 mi N of Black Point Beach access road 96 Comment
  HSC100943  Mimulus congdonii Peter Warner 2011-3-9 179 Sonoma Pepperwood Preserve, NE corner, 1,125 m, W299 deg. N from junction of Franz Valley and Franz Valley School Roads. 0 Comment
  RSA535766  Mimulus congdonii David M. Thompson 1988-4-1 863 Sonoma Ca. 3 air miles E of Glen Ellen. 3.9 mi NE of Hwy 12 along Cavedale Road; W side of Road, 5 ft S of entrance to 3845-3850-3860 private driveway. 183 Comment
  RSA535770  Mimulus congdonii David M. Thompson 1989-4-4 994 Sonoma Ca. 3 air mi E of Glen Ellen. 3.9 mi NE of Hwy 12 along Cavedale Road; W side of Road, 5 ft S of entrance to 3845-3850-3860 private driveway. 183 Comment
  RSA178001  Mimulus guttatus Robert F. Thorne 1965-4-19 34286 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  RSA698954  Mimulus guttatus J. R. Bruff 1936-8-21 s.n. Sonoma Bodega Bay. Comment
  UCR253011  Mimulus guttatus Peter Rubtzoff 1959-6-20 4170 Sonoma Willow Creek Marsh 9 Comment
  POM5021  Mimulus guttatus C. F. Baker 1899-05 s.n. Sonoma Stewarts Canon, near Falls. Comment
  SEINET12334049  Mimulus guttatus Unknown 1977-1 17 Sonoma no further locality 122 Comment
  UC1348905  Mimulus microphyllus Robert F. Thorne 1965-4-19 34286 Sonoma 2 mi ne Occidental (near county dump on Stoetz Road, off of Harrison Grade) 182 Comment
  SBBG83869  Mimulus nudatus L. F. LaPre 1986-6-3 Sonoma Dorr Place, 4 mi up private road from Mannings Flats in Austin Crk State Recreation Area, 6 mi N of Cazadero on upper Austin Crk 207 Comment
  SEINET7067136  Mimulus rubellus A. G. Vestal 1947-4-29 s.n. Sonoma About 1.4 miles west of Green Valley. Coordinate datum: NAD27. UTM Zone 10, 648599mE, 4507677mN. Comment
  CAS-BOT-BC174582  Minuartia californica A. A. Heller; H. E. Brown 1902-3-14 5067 Sonoma Near Windsor Comment
  UC852247  Minuartia californica Keith Wagnon 1940-3-31 238 Sonoma 5 mi w Sebastopol; Gold Ridge Subdivision Comment
  JEPS117071  Minuartia californica Peter Warner 2010-3-30 127 Sonoma Annadel State Park, east of Santa Rosa; approx. 200 m south of Cobblestone Trail, approx. 1 km west of Channel Drive. Comment
  UC7699  Mollugo verticillata Miss Alice King 1897-1 Sonoma Healdsburg Comment
  CAS-BOT-BC314202  Monardella villosa L. R. Abrams 1916-7-4 5790 Sonoma Road between Petrified Forest and Mark West. Comment
  CAS-BOT-BC314210  Monardella villosa subsp. villosa John H. Thomas 1969-9-21 15470 Sonoma Coastal bluffs to the S of the mouth of the Russian River. 121 Comment
  UCR42321  Monardella viridis L. F. LaPre 1985-6-25 s.n. Sonoma Coast Ranges, Socrates Mine, c. 9 mi. ENE of Geyserville 917 Comment
  UC1995308  Monardella viridis Milo S. Baker 1934-6-20 7654 Sonoma 2 1/2 mi ne Glen Ellen (Youngman Ranch) Comment
  RSA0005226  Montia clara A. A. Heller, H. E. Brown 1902-4-16 5313 Sonoma Fields east of Santa Rosa Comment
  CAS-BOT-BC444997  Montia fontana Greg de Nevers 1993-2-14 10313 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Bald Hills vernal pools. 304 Comment
  CAS-BOT-BC445001  Montia fontana Peter Rubtzoff 1966-4-30 s.n. Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road. Comment
  CAS-BOT-BC444990  Montia fontana Catherine Best 1982-3-20 s.n. Sonoma Stoetz Lane 2 mi. north east of Occidental Comment
  UCD86410  Muhlenbergia andina Freed W. Hoffman 1947-8-30 575 Sonoma Layton Mine, Austin Creek. Comment
  POM161366  Muilla maritima Rimo C. Bacigalupi 1252 Sonoma Opposite Myrtledale Geyser. 1.5 miles north of Calistoga. Comment
  RSA123590  Muilla maritima Leo Koch 1938-3-23 63 Sonoma Roadside near Shiloh cemetery, near Windsor. Comment
  JEPS21579  Myosotis discolor Lauramay T. Dempster 1958-5-24 1104 Sonoma Pitkin Ranch, Pitkin Marsh Comment
  JEPS23179  Myosotis discolor Reino Alava 1955-5-24 2044 Sonoma Pitkin Marsh n.w. of Sebastopol; Pitkin Marsh Comment
  UCR198114  Myosotis latifolia Allen Hahus 1978-4-22 17 Sonoma North Coast Range, 0.6 mi north of Hwy 12 on Jonive Road [Sebastapol] 152 Comment
  UCD166291  Myosurus Peter Rubtzoff 1966-5-7 5703 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UC5274  Myrica californica J. Burtt Davy 1896-3-14 1670 Sonoma Fort Ross Comment
  RSA461913  Myrica californica Christopher Davidson 1977-6-17 5887 Sonoma Coast Highway 1, ca. three miles north of Jenner. Comment
  CAS-BOT-BC251162  Myriophyllum hippuroides Peter Rubtzoff 1966-8-26 5813 Sonoma Atascadero Creek Marsh. Comment
  RSA800894  Myriophyllum hippuroides Peter Rubtzoff 1955-7-2 1916 Sonoma Boggs Lake, southern shore of the lake. Comment
  JEPS86817  Myrtus communis Jack and Betty Guggolz 1991-3-6 1101 Sonoma 7.25 mi from s side of Highway 128 (Ida Clayton Road); Ida Clayton Road 734 Comment
  CAS-BOT-BC456196  Najas guadalupensis Greg de Nevers 1991-8-8 9768 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In largest Double Pond. 475 Comment
  UC1146589  Nassella lepida Freed W. Hoffman 1942-5-11 2267 Sonoma Headwaters Gualala River (The Roughs) North Coast Ranges Comment
  UCD87822  Nassella lepida Beecher Crampton 1955-6-17 2952 Sonoma 4.5 miles S of Cazadero. Comment
  JEPS497  Nassella pulchra W. L. Jepson 1911-4-30 4181 Sonoma Sonoma Valley 83 Comment
  SEINET7067245  Nassella pulchra A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1. Coordinate datum: NAD27. Comment
  UC1133204  Nassella pulchra H. S. Yates 1937-5-30 6549 Sonoma 4 mi nw Graton; Sebastopol Quadrangle Comment
  UCD87470  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma 3 miles south of Healdsburg, along US Hwy. 101. Comment
  UCD87690  Nassella pulchra M. Wiesendanger 1927-5-5 714 Sonoma Sonoma. Comment
  UCD161268  Nasturtium officinale James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3684 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of Big Sulphur Creek and the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  POM65215  Navarretia cotulifolia A. A. Heller 1902-6-4 s.n. Sonoma Santa Rosa. Comment
  UCR66595  Navarretia cotulifolia F. W. Peirson 1925-8-8 6339 Sonoma 6 mi south of Santa Rosa 38 Comment
  UC106834  Navarretia heterodoxa Michener and Bioletti Jul 1891 1554 a Sonoma Hoods Peak Comment
  JEPS70317  Navarretia heterodoxa Milo S. Baker 1928-6-16 3041 b Sonoma Hope Valley, n of Barber Ranch Hope Valley Comment
  CAS-BOT-BC230374  Navarretia leucocephala subsp. bakeri Alice Eastwood; John Thomas Howell 1938-7-6 6083 Sonoma 2 miles N of Windsor Comment
  UCD84273  Navarretia leucocephala subsp. bakeri Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UC73615  Navarretia pubescens Milo S. Baker 1898-5-7 Sonoma Glen Ellen Comment
  CDA40114  Navarretia pubescens G. D. Barbe 1991-5-15 4412 c Sonoma Along ridge west of Annadel State Park boundary, Santa Rosa. Comment
  SDSU3220  Navarretia pubescens D. F. Howe 1963-7-2 3574 Sonoma 3.5 miles south of Guerneville on #12. 30 Comment
  UCD48682  Navarretia squarrosa Frederica Bowcutt 1984-6-23 425 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along Sonoma County Coast. W of Hwy 1. N of Gerstle Cove growing along roads. On Plantation 7.5' Quad. Coastal terrace. 30 Comment
  CDA15294  Navarretia squarrosa P. Lane 1998-7-17 s.n. Sonoma North Coast Biodiversity Arena; on Lakeville Hwy near Petaluma. 0 Comment
  SEINET3156469  Nemophila atomaria L. S. Rose 1933-5-9 33160 Sonoma Bodega Bay Comment
  UC58517  Nemophila heterophylla A. A. Heller 1903-4-24 6619 Sonoma near Cazadero; near Cazadero Comment
  CDA40366  Nemophila heterophylla J. C. Violetti 1968-5-22 s.n. Sonoma 2939 Mayette Ave., Santa Rosa. 0 Comment
  POM125417  Nemophila heterophylla Alice Eastwood 1923-5-9 s.n. Sonoma Mt. St. Helena. Comment
  UCD13104  Nemophila menziesii William Sischo 1973-5-10 123 Sonoma Sonoma County, Bodega Bay Head. Comment
  CAS-BOT-BC231193  Nemophila parviflora Roxana S. Ferris; Laura Lorraine 1961-6-14 13529 Sonoma Junction of Bittner Road with Joy Road between Occidental and Bodega Comment
  CAS-BOT-BC231195  Nemophila parviflora A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross Comment
  UC58518  Nemophila parviflora A. A. Heller 1903-4-23 6611 Sonoma Fort Ross Comment
  RSA0034040  Nicotiana Peter Rubtzoff 1986-9-29 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  SD133974  Nicotiana quadrivalvis Barbara Ertter 1988-11-5 8030 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge 152 Comment
  CAS-BOT-BC400129  Nuphar polysepala James McMurphy 1908-9-27 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC140456  Oemleria cerasiformis G. DeNevers 1981-4-1 601 Sonoma E of road, in Leslie Creek Comment
  CAS-BOT-BC502770  Orobanche bulbosa Alice Eastwood 1915-6-6 4704 Sonoma Mt. St. Helena Comment
  SEINET13754683  Orthocarpus W. Roderick 1967-5-13 s. n. Sonoma N. of Steward's Pt. 15 Comment
  RSA789045  Orthocarpus faucibarbatus Carrie A. Herd 1982-4-25 75 Sonoma Crane Creek Regional Park. Comment
  SEINET8733536 Image available Orthocarpus faucibarbatus Lewis S. Rose 1933-1 33158 Sonoma BODEGA BAY Comment
  UCD127444  Osmorhiza berteroi Botany 102 Students 1993-4-17 29 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, and 18 air miles NW of Napa. About 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge. S of Red Mountain about 1 air mile. In campground. 365 Comment
  UCD127765  Osmorhiza berteroi J. Adams; J. Weick 1993-5-8 296 Sonoma about 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. 365 Comment
  SEINET3143955  Osmorhiza chilensis L. S. Rose 1940-5-6 40263 Sonoma Sonoma Creek Canyon 213 Comment
  CHSC26016  Oxalis oregana William Larkin 1961-3-28 Sonoma Rio Nido; along canyon road leading to cabins. 30 Comment
  UCR3592  Oxalis oregana Carolyn McNeill 1969-5-25 s.n. Sonoma Sebastopol, 0.75 mi. east of Coffee Lane 107 Comment
  UCD110971  Oxalis oregana Linda A. Bell 1975-5-18 156 Sonoma on highway 116, 3 miles west of Guerneville. Comment
  JEPS117127  Oxalis pes-caprae Peter Warner 2010-3-29 123 Sonoma 1670 Bloomfield Road, approx. 3 km S of center Sebastopol, throughout property. Comment
  UC1389001  Packera Milo S. Baker 1934-4-28 7605 Sonoma w Dry Creek Valley (ne corner of ranch); Jensen Ranch Comment
  RSA0000459  Panicularia davyi Jos Burtt Davy 1899-7-21 6005 Sonoma Near Guerneville. Comment
  CAS-BOT-BC254465  Panicum Peter Rubtzoff 1986-9-28 9749 Sonoma Russian River at Forest Hills, 5.5 miles E of Guerneville Comment
  UCD166341  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC1254541  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-7 1618 Sonoma downstream from the geyser area (along Sulphur Creek); The Geysers, along Sulphur Creek Comment
  UCD161862  Panicum acuminatum var. fasciculatum James A. Neilson Jr. 1978-7-15 3970 Sonoma Mayacmas Mountains. Socrates Mine Headquarters. (Exact location unknown, coordinates estimated by label maker.) Comment
  UCD88410  Panicum acuminatum var. fasciculatum Beecher Crampton 1957-7-22 4398 Sonoma State Highway 1, 1/4 mile north of Fort Ross. Comment
  UCD32828  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 f Sonoma N.E. Sonoma County: The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/2 mile east of Geyser Resort area, slope of steam well (locally called 'The Outlaw') or otherwise thermal no. 10 (Thermal Power co.), steep banks along road to steam well. 493 Comment
  UCD89124  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 b Sonoma North East part of county. The Geysers, Comment
  UCD89125  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 c Sonoma North East part of county. The Geysers. Comment
  CAS-BOT-BC253861  Panicum miliaceum P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar ranch Comment
  CAS-BOT-BC7044  Panicum thermale Henry Nicholas Bolander 1860-1-1 3941 Sonoma Geysers Comment
  JEPS30838  Parapholis incurva Rimo Bacigalupi and L. R. Heckard 1962-6-19 8594 Sonoma just above beach line on Bodega Harbor side Bodega Head (opposite spit of Doran Beach); Bodega Harbor side of Bodega Head, opposite Doran Beach Comment
  UC1185392  Parvisedum pumilum Wayne Roderick 1961-5-4 Sonoma Agua Caliente 3 mi n of Sonoma (at intersection of Route 12 and Sierra Avenue) Comment
  CAS-BOT-BC154989  Paspalum Peter Rubtzoff 1973-10-10 7342 Sonoma Tributary of Americano Creek, 2 mi. W of Bloomfield Comment
  UCD88720  Paspalum dilatatum Frederica Bowcutt 1996-5-23 2144 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Entrance to campground in Adobe Canyon. 350 Comment
  CAS-BOT-BC259690  Paspalum dilatatum Richard W. Pohl 1963-6-1 9436 Sonoma Geyser Summit Comment
  CDA19021  Paspalum dilatatum P. Lane 2000-11-3 PDR 116684 Sonoma Along Sequoia Ridge, 3790 Harrison Grade Rd., Sebastopol. 0 Comment
  RSA784152  Paspalum dilatatum Peter Rubtzoff 1971-8-31 6662 Sonoma Todd Road near Stony Point Road Comment
  CAS-BOT-BC202869  Paxistima myrsinites W. Knight; I. Knight; Dr. Steve Edwards 1986-6-9 5444 Sonoma Annadel State Park Comment
  CHSC22339  Pedicularis densiflora Robert A. Schlising 1962-3-31 2117 Sonoma California Coast Ranges. Along Cavedale Road, 1 mi E of Hwy 12. Comment
  RSA401967B  Pedicularis densiflora Cora Mae Life 1924-3-22 s.n. Sonoma Camp Weeker. Comment
  RSA800161  Pelargonium capitatum Peter Rubtzoff 1970-10-29 6424 Sonoma Bodega Harbor Marsh. Comment
  UCD137553  Pellaea andromedifolia Frederica Bowcutt 1994-6-12 1870 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail above Adobe Canyon Road (road visable from trail). Less than 1/8 mile SW of trail juncture with Pony Gate Gulch Creek. 326 Comment
  UC399539  Pellaea mucronata var. mucronata Michener and Bioletti 1892-12-24 Sonoma Comment
  SEINET12326114  Penstemon heterophyllus W. Knight, Knight, I. 1983-1 4710 Sonoma Calistoga Rd 2.5 mi from State Route 12,300 yds S of summit 152 Comment
  UC27456  Penstemon heterophyllus var. heterophyllus H. N. Bolander 1864-1 3957 Sonoma at the Geysers Comment
  UC1238920  Penstemon heterophyllus var. purdyi Freed W. Hoffman 1947-4-20 654 Sonoma near Guerneville (headwaters of Fife Creek, Del Preti Hill); North Coast Ranges, headwaters Fife Creek Comment
  UC27503  Penstemon newberryi var. sonomensis F. T. Bioletti 1892-1 Sonoma Hood's Peak Comment
  SEINET6174116 Image available Penstemon newberryi var. sonomensis Sally Walker 1981-5-8 81 H04 Sonoma Summit of North peak of Mt. St. Helena 1324 Comment
  SEINET12341670  Pentagramma triangularis F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -60 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  UC399579  Pentagramma triangularis subsp. triangularis Mrs. Carlotta C. Hall June 1909 12 Sonoma w of Guerneville (Graystone Trail, w side of canyon) Comment
  SEINET9293705  Perideridia howellii George Hrusa, Buckmann, A 1996-10-5 13584 Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. Two pools, approx 150 meters apart, 45x60 meters in size. Approx. 2m. SW of Calistoga. Douglas-fir-forest surrounding. Small colony in lower pool, to 1 meter tall/ Elev. 700 meters. Quadrangle: Calistoga 7.5 700 Comment
  UCD127636  Perideridia kelloggii Frederica Bowcutt 1997-7-19 2192 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood. 0.75 air mile S of Red Mountain, 0.5 air miles NNW of confluence of the Malm Fork, 1.0 air miles WSW of Brushy Peaks. 457 Comment
  CAS-BOT-BC413643  Persicaria amphibia Peter Rubtzoff 1954-9-4 1732 Sonoma Bodega Head Marsh Comment
  CAS-BOT-BC413648  Persicaria amphibia Peter Rubtzoff 1955-9-9 2116 Sonoma Bodega Head Marsh Comment
  CAS-BOT-BC413645  Persicaria amphibia Peter Rubtzoff 1966-8-26 5811 Sonoma Atascadero Creek Marsh Comment
  UCD99359  Persicaria amphibia Ann F. Johnson 1979-6-19 s.n. Sonoma South of entrance road to Bodega Dunes State Park. Comment
  CAS-BOT-BC418903  Persicaria hydropiperoides Peter Rubtzoff 1954-8-10 1675 Sonoma Bodega Head Marsh Comment
  CAS-BOT-BC418905  Persicaria hydropiperoides Peter Rubtzoff 1960-9-14 4526 Sonoma Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads) Comment
  CAS-BOT-BC418908  Persicaria hydropiperoides Peter Rubtzoff 1958-7-19 3777 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC419108  Persicaria lapathifolia John Thomas Howell 1932-9-18 10777 Sonoma Slough draining Kenwood Marsh Comment
  SD99428  Persicaria lapathifolia Peter Rubtzoff 1962-10-23 5127 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC419266  Persicaria maculosa Peter Rubtzoff 1951-7-14 4 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC419271  Persicaria maculosa Peter Rubtzoff 1965-8-29 5630 Sonoma Russian River bottom at Forest Hills (5.5 mi. east of Guerneville) Comment
  CAS-BOT-BC419431  Persicaria punctata John Thomas Howell 1946-8-17 22854 Sonoma The Laguna north of Sebastopol Comment
  UCD98399  Petrorhagia nanteuilii Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 67 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Adobe Canyon Road. 259 Comment
  UC753396  Phacelia californica Florence Signaigo and Thomas Morley 1946-5-19 129 Sonoma Vine Hill School rd 5-6 mi n Sebastopol 30 Comment
Read comments Dec 30 2011
  JEPS128247  Phacelia corymbosa Roger Raiche 2000-5-28 116 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CDA40384  Phacelia distans T. C. Fuller 1958-5-24 4020 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  JEPS2394  Phacelia distans Milo S. Baker 1898-4-23 Sonoma Santa Rosa Cr. Canyon Comment
  UC126049  Phacelia distans Katharine Brandegee July 1905 Sonoma Bodega Head Comment
  UC881084  Phacelia distans Alice Eastwood 1915-6-29 4848 Sonoma near type locality Bodega Point Comment
  CAS-BOT-BC361355  Phacelia distans Greg de Nevers 1997-4-16 10943 Sonoma Moon Mountain Road Area burned Sept. 1996 Comment
  RSA0056425  Phacelia distans Greg de Nevers 1997-4-16 10943 Sonoma Moon Mountain Road. Comment
  UC1046968  Phacelia imbricata L. R. Heckard 1952-4-15 227 Sonoma about 2.5 mi ne Alexander Valley (along road to Pine Flat) Comment
  SD99425  Phacelia imbricata var. imbricata Christopher Davidson 1977-6-20 6019 Sonoma Dry Creek Road, 9.3 miles west of Geyserville. 91 Comment
  CAS-BOT-BC332702  Phalaris Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7839 Sonoma Kenwood Marsh. Comment
  UCD88336  Phalaris angusta H. S. Yates 1936-5-16 5617 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  UCR244624  Phalaris angusta Peter Rubtzoff 1972-6-23 6785 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC258949  Phalaris aquatica Walter Knight; Irja Knight 1963-9-11 281 Sonoma Live Oak Road, Liberty Dist. Petaluma Comment
  CAS-BOT-BC258950  Phalaris aquatica J. Penalosa 1961-5-24 1602 Sonoma Pepper Rd. 0.9 mi. N of Petaluma - Valley Ford Rd. Comment
  RSA227235  Phalaris arundinacea Peter Rubtzoff 1958-5-17 3659 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Rd.) Comment
  CAS-BOT-BC265911  Phalaris lemmonii Peter Rubtzoff 1960-5-15 4339 Sonoma Fife Creek Marsh, Sonoma County Marshes Comment
  UCD88874  Phalaris lemmonii A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3580 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  UC1011004  Phalaris paradoxa Virginia Bufford 1936-5-20 341 Sonoma Kellogg Mark West Rd 3 mi from Mark West; 3 mi from Mark West Comment
  CAS-BOT-BC253562  Phleum alpinum Alice Eastwood 1915-6-29 4874 Sonoma Bodega Point Comment
  CAS-BOT-BC260876  Phleum pratense Peter Rubtzoff 1951-7-8 402 Sonoma Lower part of the Upper Marsh, Pitkin Marsh near Forestville Comment
  SEINET12330326  Phlox speciosa Unknown 1985-1 50169 Sonoma W of Healdburg, Dry Crk area, ridge W side of Dry Creek Valley, N of Dorman Canyon on Bradford Mt 244 Comment
  JEPS69993  Phlox speciosa subsp. occidentalis Milo S. Baker 1928-3-24 2718 c Sonoma 5 mi w Healdsburg (on Jensen ranch) Comment
  CAS-BOT-BC135032  Phoradendron bolleanum Catherine Best 1981-5-2 s.n. Sonoma Harrison Grade Rd 2 miles N of Occidental Comment
  SBBG39485  Phoradendron bolleanum L. S. Rose 1970-2-27 Sonoma 2 mi E of Occidental 213 Comment
  CAS-BOT-BC135034  Phoradendron bolleanum Roxana S. Ferris 1962-4-14 13584 Sonoma on ridge ca. 1/8 mi. beyond County dump Comment
  CAS-BOT-BC140622  Physocarpus capitatus Peter Rubtzoff 1953-5-16 1355 Sonoma Vacation Beach, near Guerneville. Bank of Russian River Comment
  CAS-BOT-BC140630  Physocarpus capitatus Volney Rattan 1877-6-14 s.n. Sonoma Guerneville Comment
  CDA39793  Phytolacca americana var. americana Peter Warner 2013-8-18 297 Sonoma 5381 Thomas Road, Sebastopol (northwest of Graton); along driveway, inside fenced area. 0 Comment
  CAS-BOT-BC202279  Pickeringia montana var. montana James McMurphy 1909-5-29 s.n. Sonoma Grade, ridge south of the Geysers Comment
  CAS-BOT-BC173849  Picris echioides Peter Rubtzoff 1966-8-16 5783 Sonoma Laguna de Santa Rosa, northeast of Graton, ca. 0.5 miles North of Guerneville. Comment
  CAS-BOT-BC176158  Picris echioides Peter Rubtzoff 1955-8-14 2050 Sonoma Forestville Marsh. Comment
  UCD134386  Pinus attenuata J. M. Tucker; C. H. Lamoureux 1958-6-8 3405 Sonoma 1.8 miles east of junction of Trinity Road and State Highway 12, beside the former. Comment
  UC400281  Pinus ponderosa J. Burtt Davy 1894-10-1 Sonoma above Knights Valley (spur of mt. on the Sonoma Co. side); Mt. St. Helena Comment
  JEPS128340  Piperia transversa Roger Raiche 2010-7-10 032 .10 Sonoma The Cedars. Processing Area. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC368049  Piperia transversa Greg de Nevers 1989-6-8 9073 Sonoma Field redacted by CAS, contact the data manager for more information 400 Comment
  UCD144568  Piptatherum miliaceum Frederica Bowcutt 1994-7-5 1931 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 70 ft. S of Campfire Center along N edge of Sonoma Creek, N and E of campground. 381 Comment
  RSA785901  Plagiobothrys Peter Rubtzoff 1972-4-23 6735 Sonoma 4.25 mi. W. of Glen Ellen on Bennett Valley road Comment
  RSA788369  Plagiobothrys Peter Rubtzoff 1971-6-5 6525 Sonoma W side of Hwy 1, 0.7 mi SE of Salmon Creek Crossing. Comment
  UCD166175  Plagiobothrys Peter Rubtzoff 1969-6-15 6096 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR279874  Plagiobothrys Peter Rubtzoff 1969-6-15 6092 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC166952  Plagiobothrys Peter Rubtzoff 1969-6-15 6090 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  RSA788370  Plagiobothrys bracteatus Peter Rubtzoff, H. A. Froebe 1971-5-30 6488 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Rd. Comment
  SEINET3101780  Plagiobothrys bracteatus Ayzik Solomeshch 2009-5-12 s.n Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UCR279863  Plagiobothrys bracteatus Peter Rubtzoff 1970-5-16 6217 Sonoma San Francisco Bay Region, Five miles north of Sears Point 9 Comment
  JEPS21216  Plagiobothrys nothofulvus H. S. Yates 1934-4-22 3842 Sonoma 2 mi s Mark West; Calistoga Quadrangle Comment
  RSA785157  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-3 6013 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  UCD37562  Plagiobothrys tenellus Beecher Crampton 1955-4-5 2409 Sonoma 3 miles west of Fulton, along Woolsey Road, just below Mount Olivet School. Comment
  UCR244618  Plagiobothrys undulatus Peter Rubtzoff 1971-7-23 6612 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 70 Comment
  RSA151887  Plagiobothrys undulatus Robert Ornduff 1960-4-21 6072 Sonoma West edge of Sonoma. Both sides of Hayes St., south of Sonoma Elementary School. Comment
  SD88561  Plantago erecta Darley F. Howe 1972-5-3 4819 Sonoma Ocean bluff, 4.0 miles north of Ft. Ross. Comment
  UC565399  Plantago subnuda G. Thomas Robbins 1937-6-5 220 Sonoma Pitkin Ranch, Vine Hill region, about 10 miles west of Santa Rosa. Comment
  CAS-BOT-BC92125  Platystemon californicus Peter H. Raven 1955-3-20 8242 Sonoma One mile west of Schelville. Comment
  UC50149  Platystemon californicus Willis L. Jepson 1893-4-25 Sonoma trail to Caux's Cabin w St. Helena; w of St. Helena Comment
  RSA51320  Platystemon californicus var. californicus Peter H. Raven 1950-4-6 1572 Sonoma Cotati to Santa Rosa. 30 Comment
  UC573891  Pleuropogon californicus H. S. Yates 1937-6-5 6575 Sonoma near Wildwood 121 Comment
  CAS-BOT-BC260973  Pleuropogon californicus var. californicus Peter Rubtzoff 1958-5-10 3648 Sonoma Laguna de Santa Rosa north of Cunningham near Todd Road Comment
  CAS-BOT-BC260975  Pleuropogon californicus var. californicus Peter Rubtzoff 1958-4-26 3600 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC260978  Pleuropogon californicus var. californicus Lewis S. Rose 1962-4-11 62020 Sonoma Laguna de Santa Rosa, 1/2 mi. e. of Cunningham 15 Comment
  UCD90193  Pleuropogon californicus var. californicus R. Tofsrud 1949-4-1 s.n. Sonoma south of East Windsor. Comment
  CAS-BOT-BC311824  Poa Peter Rubtzoff 1974-5-11 7405 Sonoma Laguna de Santa Rosa east of Sebastopol (south of Hwy. 12 crossing). Comment
  CAS-BOT-BC422342  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC255603  Poa annua Peter Rubtzoff 1960-5-20 4399 Sonoma Laguna de Santa Rosa E of Graton, between Occidental and Guerneville roads Comment
  CAS-BOT-BC255605  Poa annua Peter Rubtzoff 1954-6-6 1463 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC255608  Poa annua John Thomas Howell; et al. 1981-5-14 53940 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain Comment
  SEINET175724 Image available Poa douglasii Marcus E. Jones 1882-5-13 Sonoma Santa Rosa Comment
  UC905109  Poa howellii Milo S. Baker 1947-4-22 11698 Sonoma Hood Mt, w slope Hood Mt (along trail towards cliffs) 304 Comment
  SEINET10602215  Poa nevadensis A. Arthur Heller 1902-4-9 Heller 5245 Sonoma In a railroad cut 3 miles South of Healdsburg. Comment
  SEINET10602223  Poa nevadensis A. Arthur Heller 1902-4-9 Heller 5249 Sonoma In a railroad cut 3 miles South of Healdsburg. Comment
  CAS-BOT-BC243254  Poa secunda subsp. secunda G. DeNevers 1981-4-25 862 Sonoma Pepperwood Ranch. Roadside at Mark West Creek and Leslie Creek Comment
  UCD92101  Poa trivialis Roxana S. Ferris; Laura Lorraine 1961-6-14 13542 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner. Comment
  UCD92135  Poa unilateralis Beecher Crampton 1971-6-6 8719 Sonoma Sonoma Coast State Park at Carmet. Comment
  CAS-BOT-BC329227  Poaceae Peter Rubtzoff 1968-6-20 5899 Sonoma 6.5 miles northeast of Penngrove on Lichan Road. 426 Comment
  POM233136  Pogogyne douglasii subsp. parviflora Lyman Benson 1930-6-18 2164 Sonoma South of Santa Rosa. 61 Comment
  CAS-BOT-BC361399  Pogogyne serpylloides Greg de Nevers 1993-5-6 10437 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd., at Weimar Flat 457 Comment
  UCD109703  Polygala californica Mary M. Hektner; Sue Dakuazku, Cathy Hendel 1974-7-3 107 Sonoma Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  POM316694  Polygala californica Patricia Wilder 1965-6-10 3640 Sonoma About one mile from junction of Fort Ross Road and Seaview Road, on Seaview Road. North Coast mountain range, Pacific drainage area 549 Comment
  CAS-BOT-BC414112  Polygonum aviculare subsp. aviculare Alice Eastwood 1921-5-8 10476 Sonoma Petaluma Comment
  CLARK-A1528-3782  Polygonum convolvulus John C. Roos 1959-7-30 Sonoma Healdsburg Garden Comment
  RSA234545  Polygonum hydropiperoides Peter Rubtzoff 1958-8-31 3954 Sonoma Atascadero Creek Marsh. Comment
  RSA518814  Polygonum punctatum Barbara J. Ertter 1988-11-5 8031 Sonoma Lake Sonoma 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  RSA94323  Polygonum punctatum Peter Rubtzoff 1952-10-26 1330 Sonoma Western branch of the upper Marsh, at a shady place in shallow water Comment
  CAS-BOT-BC72010  Polypodium californicum A. A. Heller 1902-3-10 5011 Sonoma Hills near Santa Rosa Comment
  POM22455  Polypodium californicum A. A. Heller 1902-3-10 5011 Sonoma Hills near Santa Rosa Comment
  UC914094  Polypodium calirhiza Milo S. Baker June 1944 10886 Sonoma 1 1/2 mi n in hills Sonoma Comment
  CAS-BOT-BC320505  Polypogon Peter Rubtzoff 1973-8-21 7249 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC233190  Polypogon interruptus Peter Rubtzoff 1956-9-11 2848 Sonoma Vacation Beach near Guerneville, Russian River bottom Comment
  CAS-BOT-BC233197  Polypogon interruptus Peter Rubtzoff 1951-6-16 220 Sonoma Pitkin Marsh, near Forestville. N half of Lower Marsh Comment
  SEINET10860395  Polypogon interruptus George B. Van Schaack, George F. Freytag 1950-8-15 Van Schaack 3073 Sonoma In soil chinks on sea side rocks. 5 m S of Stewart's Point. Comment
  CAS-BOT-BC233220  Polypogon maritimus D. E. Breedlove 1980-6-27 44733 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC233227  Polypogon maritimus Peter Rubtzoff 1962-9-16 5084 Sonoma Russian River bottom, Vacation Beach, 2 miles below Guerneville Comment
  CAS-BOT-BC237403  Polypogon monspeliensis Peter Rubtzoff 1951-8-19 642 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh Comment
  CAS-BOT-BC237405  Polypogon monspeliensis Peter Rubtzoff 1960-10-29 4574 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC237408  Polypogon monspeliensis Peter Rubtzoff 1956-9-11 2847 Sonoma Vacation Beach, near Guerneville, Russian River bottom Comment
  POM206737  Polypogon monspeliensis A. A. Heller 1902-4-23 5353 Sonoma Near Sonoma. Comment
  UCR248766  Polypogon monspeliensis Peter Rubtzoff 1986-7-13 9723 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  UCD91338  Polypogon monspeliensis P. B. Kennedy 1920-6-16 X 3252 Sonoma Santa Rosa; Field -- Campus -- Berkeley Comment
  UC1400835  Polystichum P. Fischer 1970-9-20 4248 Sonoma 7.6 mi. from Point Stewart on rd. to Healdsburg 60 Comment
  CAS-BOT-BC72173  Polystichum californicum Eliz. Parsons Hawver 1915-6-1 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC102665  Populus fremontii Peter Rubtzoff 1960-5-15 4335 Sonoma Fife Creek Marsh Comment
  CAS-BOT-BC102668  Populus fremontii Peter Rubtzoff 1973-10-10 7335 Sonoma Forestville Marsh area, field ca. 25 yards from creek draining the Forestville Marsh Comment
  CAS-BOT-BC445296  Portulaca oleracea Peter Rubtzoff 1961-8-25 4713 Sonoma Forest Hills (on Russian River) east of Guerneville. Comment
  CAS-BOT-BC376233  Potamogeton Greg de Nevers 1992-8-16 10246 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Franz Creek 304 Comment
  CAS-BOT-BC376364  Potamogeton Greg de Nevers 1992-6-8 10159 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CAS-BOT-BC249289  Potamogeton crispus Peter Rubtzoff 1969-8-14 6126 Sonoma Salmon Creek, 5 miles west of Bodega (town) on Salmon Creek Road (1.1 mi. west of Finlay Creek Crossing). Comment
  UC441349  Potamogeton illinoensis Milo S. Baker Aug. 1900 Sonoma laguna near Sebastopol Comment
  UCD164983  Potamogeton nodosus Peter Rubtzoff; Vanette Bunyan, Nancy Harrison, Marion Weiger 1974-8-5 7812 Sonoma Kenwood Marsh. Comment
  HSC98398  Potentilla anserina subsp. pacifica James Faro 1962-4-17 28 Sonoma W side of Bodega Bay, N end Comment
  RSA0005687  Potentilla hickmanii Milo S. Baker 1947-6-26 11831 Sonoma Cunningham Marsh, ca 1 mile SW of Cunningham Sta. (air line) Comment
  UCD168044  Prosartes hookeri James A. Neilson Jr. 1981-3-13 3997 Sonoma Mayacmas Mountains, Hummingbird Creek, Squaw Creek drainage. (Exact location unknown, coordinates estimated by label maker.) Comment
  SBBG12370  Prunella vulgaris A. I. Richardson 1961-6-17 23 Sonoma near Timber Cove, N of Ft Ross Comment
  SEINET13947122 Image available Prunella vulgaris A. A. Heller 1902-1 5639 Sonoma Santa Rosa Comment
  CAS-BOT-BC158589  Prunus Peter Rubtzoff 1987-3-15 9757 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Off Summerhome Park Road 0.2 miles west of Forest Hills Road Comment
  UC861010  Prunus virginiana var. demissa Alice Eastwood 1922-5-5 11295 Sonoma Mount St. Helena Comment
  UCR254918  Prunus virginiana var. demissa Greg de Nevers 1998-6-2 11267 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC356497  Pseudognaphalium beneolens Walter Knight; Irja Knight 1963-8-23 386 Sonoma Joost Ranch, Calistoga Rd. Comment
  CAS-BOT-BC356921  Pseudognaphalium californicum Peter Rubtzoff 1952-6-11 1248 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC357411  Pseudognaphalium microcephalum Walter Knight; Irja Knight 1963-9-15 300 Sonoma Los Alamos Rd, Santa Rosa Comment
  UC1118475  Pseudognaphalium stramineum H. S. Yates 1936-5-17 5628 Sonoma 2 mi n of Bodega Bay; Duncan Hills Quadrangle 3 Comment
  CAS-BOT-BC361616  Pseudognaphalium stramineum Roxana S. Ferris 1937-8-18 9375 Sonoma At mouth of Salmon Creek on Bodega Bay Comment
  UCD148334  Pseudognaphalium stramineum Peter Rubtzoff 1954-9-4 1725 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC80185  Pseudotsuga menziesii A. A. Heller; H. E. Brown 1902-3-31 5188 Sonoma Mt. Hood Comment
  UCD135110  Pseudotsuga menziesii Alan A. Beetle 1940-4-7 2596 Sonoma 1 mile south of Ft. Ross; hgwy #1 between Jenner and Ft. Ross. Comment
  UC1042434  Pseudotsuga menziesii var. menziesii Peter Rubtzoff 1951-8-18 636 Sonoma w branch of the Upper Marsh in a thicket on damp ground Pitkin Marsh, Upper Marsh (near Forestville) Comment
  CAS-BOT-BC166788  Psilocarphus Peter Rubtzoff 1974-6-9 7587 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC361863  Psilocarphus oregonus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53943 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC362079  Psilocarphus tenellus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53942 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC72687  Pteridium aquilinum Walter Knight; Irja Knight 1963-10-3 382 Sonoma Crane Canyon Comment
  UCD137795  Pteridium aquilinum var. pubescens Ivette Loredo-Prendeville; Nicole Canon 1993-4-4 59 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 195 Comment
  UCR254916  Pterostegia drymarioides Greg de Nevers 1998-6-8 11271 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC366943  Pyracantha crenulata Greg de Nevers 1993-7-10 10474 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa in creek W of Finnel cabin 400 Comment
  UCR222561  Pyracantha fortuneana George K. Helmkamp, E. A. Helmkamp 2010-6-5 16254 Sonoma North Coast Ranges, junction of Martinelli Road and River Road, 4.65 air mi. due east of Guerneville 9 Comment
  UC496405  Pyrola picta Merle Randall 1930-7-11 Sonoma Cazadero Comment
  RSA74429  Quercus X ganderi Milo S. Baker 1952-9-20 12518 Sonoma Voigt Ranch SW of (near) Cunningham Sta. Comment
  UCD46180  Quercus X howellii J. M. Tucker 1977-6-16 4394 Sonoma (Q. garryana X Q. dumosa). On Shurtleff Ranch off Chalk Hill Road to the east, ca. 4 miles (air-line) northeast of East Windsor (or ca. 10 miles, airline, north-northwest of Santa Rosa), Sonoma County, California. 121 Comment
  UC1173734  Quercus agrifolia Joseph P. Tracy 1939-10-14 16514 Sonoma 4 mi se Geyserville; Alexander Valley 121 Comment
  SEINET12029925  Quercus agrifolia W. Knight, Knight, I.; Howell, J. T. 1984-1 5086 Sonoma 1.85mi up Cavedale Rd from State Rt-12 244 Comment
  UC5583  Quercus berberidifolia Edw. L. Greene 1894-6-17 Sonoma Mt. St. Helena Comment
  UCD45376  Quercus chrysolepis M. Wiesendanger 1927-5-5 730 Sonoma Maul Oak. Canyon Oak. Kenwood Springs. Comment
  UCD45473  Quercus chrysolepis Frederica Bowcutt; Jolie Henricks and Jeff Kennedy 1994-5-1 1774 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trailhead along Adobe Canyon Road S of Sonoma Creek. Elev: 650', reletively flat. Canyon Live Oak. Native. 198 Comment
  JEPS37398  Quercus douglasii W. H. Calhoun 1907-10-21 Sonoma Windsor Comment
  UC1193272  Quercus douglasii G. W. Tourtillott 1950-4-28 14 Sonoma 1 mi e Hale ranch; Sulphur Creek 213 Comment
  CAS-BOT-BC79569  Quercus dumosa Milo S. Baker 1927-10-15 s.n. Sonoma Santa Rosa - St. Helena Road Comment
  UCD45936  Quercus durata var. durata Maunsell Van Rensselaer 1941-10-12 s.n. Sonoma Rincon Ridge, Sonoma County, California. Comment
  UCD46202  Quercus garryana Roman Gankin 1967-10-4 1078 3 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  SEINET13953407 Image available Quercus garryana G. Thomas Robbins 1940-1 307 Sonoma Rincon Ridge ca. 6 mi ne of Santa Rosa 168 Comment
  CAS-BOT-BC105486  Quercus kelloggii Lewis S. Rose 1964-6-27 64058 Sonoma 2 miles N of Sonoma 900 Comment
  POM166601  Quercus kelloggii A. A. Heller, H. E. Brown 1902-3-17 5085 Sonoma Hills 8 miles northeast of Santa Rosa Comment
  RSA623531  Quercus kelloggii J. M. Tucker 1952-9-20 2622 Sonoma Voight Ranch, ca. 1.25 miles (airline) southwest of Cunningham, along a lane running east from the Voight farmhouse. Comment
  SEINET2066832 Image available Quercus kelloggii Lewis S. Rose 1964-6-27 Sonoma 2 miles n of Sonoma 274 Comment
  CAS-BOT-BC62807  Quercus lobata Mary P. Wells 1984-4-20 188 Sonoma Ground of Friends House 684 Benicia Drive, Santa Rosa, Rincon Valley Comment
  UC1193239  Quercus lobata R. H. Neuns 1950-5-8 107 Sonoma 8 mi e Geyserville 579 Comment
  UCD47144  Quercus parvula var. shrevei Willis L. Jepson 1893-9-23 s.n. Sonoma Mt. St. Helena. Napa River Basin. 914 Comment
Read comments Jul 28 2008
  JEPS37979  Quercus wislizeni W. L. Jepson 1893-9-23 Sonoma Mt. St. Helena 914 Comment
  UCD47592  Quercus wislizeni Steven J. Barnhart 1994-6-5 s.n. Sonoma California, Sonoma Co.; Salt Point State Park east of Highway 1, near junction of fire road up to the meadow and the trail to the Pygmy Forest. Comment
  CDA11187  Quercus wislizeni var. frutescens G. F. Hrusa 1989-1-2 5804 Sonoma North Coast Biodiversity Arena; NW side of Mt. St. Helena, midway up Ida Clayton Rd from Hwy 128. Comment
  CDA31302  Quercus wislizeni var. wislizeni D. G. Kelch, Ed Biffin 2010-5-3 10 .207 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCD161308  Ranunculus aquatilis James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3695 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  UC1126147  Ranunculus californicus A. Lewis 1932-5-14 76 Sonoma Calabasas Creek Napa Quadrangle 457 Comment
  UCD123944  Ranunculus californicus Caitlin Lewis; William Mutch 1993-4-17 6 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mountain. 1 mile. Near visitor center. 365 Comment
  UCD95980  Ranunculus californicus Rimy Waraich; Patti Togioka, Valerie Bullock 1993-5-8 223 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail. 365 Comment
  POM118704  Ranunculus californicus var. gratus Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UC634968  Ranunculus muricatus H. L. Mason 1928-4-13 4324 Sonoma near Petaluma Comment
  POM268846  Ranunculus muricatus A. A. Heller, H. E. Brown 1903-4-23 5356 Sonoma Near Sonoma. Comment
  RSA639495  Ranunculus muricatus Wesley Ebert 1977-4-9 2 Sonoma Crane Creek, downsream from Pressley Road. 107 Comment
  UCD96226  Ranunculus muricatus Botany 102 Students 1993-5-8 300 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 25 air miles NE of Kenwood, and 18 airmiles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge. Bold Mountain Trail less than 1 air mile S of Red Mountain, N of Sonoma Creek. 350 Comment
  CAS-BOT-BC492930  Ranunculus pusillus Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain; NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds; sampling pool #1 43 Comment
  UCR242982  Ranunculus pusillus Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  UCD115180  Raphanus sativus Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-21 44 Sonoma near Sea Ranch Lodge, Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CDA14169  Reseda luteola G. F. Hrusa, R. Gross 1997-5-12 13769 Sonoma North Coast Biodiversity Arena; Ida Clayton Rd. on NW shoulder of Mt. St. Helena. Comment
  UCR179424  Rhagadiolus stellatus Caitlin Lewis, William Mutch 1993-4-17 s.n. Sonoma Sugarloaf Ridge State Park, c. 40 air mi N of San Francisco, 11 air mi east of Santa Rosa, and 2.5 mi NE of Kenwood. Adobe Canyon N of Sugarloaf Ridge and south of Red Mountain, near visitor center, along Sonoma Creek 366 Comment
  RSA289508  Rhamnus californica Edward Lee 1936-6-8 2213 Sonoma trail 3A (N Ridge to Smith Creek), Bohemian Grove Comment
  UC1121738  Rhamnus californica C. M. Belshaw 1936-3-7 1558 Sonoma 0.25 mi w Trenton; Sebastopol Quad. 182 Comment
  UC1299570  Rhododendron occidentale Freed W. Hoffman 1946-9-26 569 Sonoma Layton Mine, Austin Creek Austin Creek; North Coast Ranges, Layton Mine, Austin Creek Comment
  UC22148  Rhododendron occidentale Edw. L. Greene 1894-6-7 Sonoma Mount St. Helena Comment
  UC750808  Rhododendron occidentale Charles B. Heiser Jr. 1946-5-19 1750 Sonoma Vine Hill Region, Pitkin Marsh Pitkin Marsh; Vine Hill Region, Pitkin Marsh Comment
  CAS-BOT-BC200343  Rhododendron occidentale var. occidentale Peter Rubtzoff 1970-6-6 6254 Sonoma Bloomfield Road. 4 1/4 mi. northeast of Bloomfield Comment
  CAS-BOT-BC200345  Rhododendron occidentale var. occidentale John H. Thomas 1955-5-22 5190 Sonoma Graton - Occidental Road, about 3.5 miles west of Occidental 60 Comment
  CAS-BOT-BC200348  Rhododendron occidentale var. occidentale Peter Rubtzoff 1959-6-7 4106 Sonoma Bank of Russian River betw. East Guernewood and Vacation Beach, near Guerneville Comment
  CDA21337  Rhododendron occidentale var. occidentale G. F. Hrusa 1989-6-7 7177 Sonoma North Coast Ranges; Above Franz Valley School Rd. immed. W of Sonoma/Napa Co. line. 259 Comment
  RSA787919  Rhododendron occidentale var. occidentale G. Fred Hrusa 1989-5-8 6091 Sonoma Hogback Mountain at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  RSA177963  Rhododendron occidentale var. occidentale R. F. Thorne 1965-4-20 34382 Sonoma Charles Newman's place up Los Alamos Rd, on Rincon Ridge 396 Comment
  CAS-BOT-BC111862  Rhynchospora alba Milo S. Baker; John Thomas Howell 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog. Comment
  CAS-BOT-BC350939  Rhynchospora californica Peter Rubtzoff 1961-10-18 4763 Sonoma Cunningham Marsh. Comment
  RSA74058  Rhynchospora californica Milo S. Baker 1945-7-18 11112 Sonoma Pitkin Marsh, upper bog Comment
  RSA94003  Rhynchospora californica Peter Rubtzoff 1951-7-1 343 Sonoma Lower part of Upper Marsh Comment
  RSA94093  Rhynchospora globularis var. recognita J. T. Howell 1945-7-18 21324 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111929  Rhynchospora recognita John Thomas Howell 1945-7-18 21324 Sonoma Pitkin Marsh Comment
  UC730046  Ribes californicum Leo F. Koch 1940-4-20 807 Sonoma about 3 mi from Highway 1 (Plantation road) Comment
  CAS-BOT-BC93057  Ribes californicum var. californicum Walter Knight; Irja Knight 1964-3-9 562 Sonoma San Antonio Creek near bridge to Henry Corda Ranch. Comment
  CAS-BOT-BC169003  Ribes divaricatum var. pubiflorum G. DeNevers 1981-6-20 1579 Sonoma At confluence of Leslie Creek and Mark West Creek, Pepperwood Ranch Comment
  CAS-BOT-BC169005  Ribes divaricatum var. pubiflorum G. DeNevers 1981-5-2 908 Sonoma Conflluence of Leslie Creek and Mark West Creek, Pepperwood Ranch Comment
  UCD151117  Ribes menziesii James A. Neilson Jr.; Teresa A. Sholars 1974-6-26 3272 Sonoma Mayacmas Mountains, ca. 3 miles west of Glenbrook, vicinity of Caldwell Pines. (Elevation estimated by label maker using Google Earth.) 716 Comment
  UC75453  Ribes roezlii var. cruentum Milo S. Baker 1898-4-4 23 Sonoma Sea View Comment
  CAS-BOT-BC186077  Ribes roezlii var. roezlii Susan M. Smith 2004-2-9 s.n. Sonoma Over 80 acre on native plant preserve Nefertierra. Off St. Helena Rd, 3 1/2 m. e. of Calistoga Rd. 472 Comment
  CAS-BOT-BC362938  Rigiopappus leptocladus G. DeNevers 1981-5-15 1215 Sonoma Pepperwood Ranch. Along road to Hansel's Lake (from the bottom of her driveway) Comment
  CAS-BOT-BC344922  Rorippa curvisiliqua Peter Rubtzoff 1974-6-2 7517 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC74707  Rorippa curvisiliqua Peter Rubtzoff 1965-8-16 5594 A Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74713  Rorippa curvisiliqua Peter Rubtzoff 1974-4-17 7366 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC74718  Rorippa curvisiliqua G. DeNevers; S. Kaza 1981-5-7 987 Sonoma 10510 Old Redwood Highway 2 miles northwest of Windsor exit from 101. Vacant lot by Healdsburg Rent-All. Comment
  CAS-BOT-BC74848  Rorippa palustris var. palustris Peter Rubtzoff 1964-8-20 5470 Sonoma Near pond 1 mile southeast of Jenner (near junction of Hihgways 1 and 12). Comment
  CAS-BOT-BC376306  Rorippa sinuata Greg de Nevers 1992-5-13 10148 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Turtle Pond. 400 Comment
  UCR254919  Rosa Greg de Nevers 1989-1 9071 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC152661  Rosa californica Peter Rubtzoff 1951-6-16 210 Sonoma Northern half of Lower Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC152676  Rosa californica A. A. Heller 1902-6-10 5678 Sonoma Santa Rosa Comment
  UC766411  Rosa gymnocarpa R. F. Hoover 1941-5-14 5076 Sonoma 3 mi s Monte Rio (on road to Camp Meeker) Comment
  CAS-BOT-BC148202  Rosa rubiginosa Peter Rubtzoff 1955-6-4 1898 Sonoma Stony Piont Marsh Comment
  CAS-BOT-BC146919  Rosa spithamea Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  UC903698  Rosa spithamea Milo S. Baker 1947-5-8 11755 Sonoma top of Rose Butte Hood Mtn. (w slope of mt.) 243 Comment
  UCD92279  Rostraria cristata Beecher Crampton 1957-5-16 4038 Sonoma 3 miles SW of Cloverdale, Hot Springs Road. Comment
  CAS-BOT-BC262823  Rubus Peter Rubtzoff 1964-5-20 5311 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC262825  Rubus Peter Rubtzoff 1954-8-11 1691 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC262828  Rubus Peter Rubtzoff 1964-5-20 5306 Sonoma Brooks Gulch Marsh. Comment
  UCR279643  Rubus Peter Rubtzoff 1964-5-20 5306 Sonoma Bodega Bay Marsh 15 Comment
  POM91634  Rubus macropetalus Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  UCD113825  Rubus parviflorus Donna Allen 1977-5-29 s.n. Sonoma 20 miles from coast. Comment
  POM91786  Rubus spectabilis var. franciscanus Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  SEINET11912601  Rubus ulmifolius var. inermis H. K. Wagnon 1990-1 1976 Sonoma bank of Santa Rosa Creek by Brookwood Ave. bridge, Santa Rosa Comment
  UCD166411  Rubus ursinus Peter Rubtzoff 1958-5-3 3613 Sonoma Atascadero Creek Marsh. Comment
  UCD17814  Rubus ursinus H. Olmo 8-10 May 1962 62 09 Sonoma California. Sonoma County: 1.5 miles east of Fort Ross on road to Cazadero. Comment
  UCD17815  Rubus ursinus H. Olmo 8-10 May 1962 62 10 Sonoma California. Sonoma County: 1.6 miles south of Timber Cove on ocean front ravine. Comment
  CAS-BOT-BC164081  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  UCD166303  Rumex Peter Rubtzoff 1966-8-20 5793 Sonoma Boggs Lake. On south side of lake. Comment
  CAS-BOT-BC166796  Rumex Peter Rubtzoff 1962-8-22 5039 Sonoma Bodega Bay Marsh. Comment
  UCD19485  Rumex acetosella Terry Reedy 1974-5-11 206 Sonoma Bodega Head, between road and freshwater marsh. 6 Comment
  CAS-BOT-BC421582  Rumex crassus Peter H. Raven; R. Snow 1958-7-23 13687 Sonoma 2.6 miles north of Jenner Comment
  RSA783835  Rumex fueginus Peter Rubtzoff 1963-10-5 5286 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  RSA785147  Rumex obtusifolius Peter Rubtzoff 1954-6-7 1480 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC433738  Rumex occidentalis J. W. Congdon 1880-5-23 s.n. Sonoma Petaluma Comment
  SEINET11934234  Rumex pulcher F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -155 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd, between Jimtown & Mercuryville 80 Comment
  CAS-BOT-BC249311  Sagina Peter Rubtzoff 1953-5-30 1419 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  RSA247450  Sagittaria cuneata Peter Rubtzoff 1971-7-9 6594 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC445774  Sagittaria latifolia Peter Rubtzoff 1960-9-14 4525 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads Comment
  UC728605  Sagittaria latifolia Milo S. Baker 1945-7-18 11119 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC445780  Sagittaria latifolia John Thomas Howell 1946-8-17 22879 Sonoma The Laguna just east of Sebastopol Comment
  CAS-BOT-BC290623  Salix Peter Rubtzoff 1971-9-1 6679 Sonoma Spring Creek Reservoir area. Comment
  CAS-BOT-BC290694  Salix Peter Rubtzoff; J. Eckenwalder 1974-4-6 7352 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC290713  Salix Peter Rubtzoff; J. Eckenwalder 1974-4-6 7353 Sonoma Kenwood Marsh. Comment
  UCR249348  Salix Peter Rubtzoff, J. E. Eckenwalder 1974-4-6 7347 Sonoma Kenwood Marsh 120 Comment
  UCR250388  Salix Peter Rubtzoff 1973-10-10 7337 Sonoma Salmon Creek, 0.25 mi south of Freestone 64 Comment
  UCR250389  Salix Peter Rubtzoff, J. E. Eckenwalder 1974-4-6 7361 Sonoma Salmon Creek, 0.25 mi. south of Freestone 64 Comment
  CAS-BOT-BC126270  Salix X sepulcralis Peter Rubtzoff 1951-8-19 645 Sonoma Southern half of Lower Marsh Comment
  RSA0015567  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC103091  Salix bonplandiana Peter Rubtzoff 1961-10-23 4782 Sonoma Laguna de Santa Rosa area northeast of Graton Comment
  UC463100  Salix breweri Milo S. Baker 1931-10-10 5615 Sonoma near confluence with Sonoma Cr. (above Los Guilicos Val.); Fitzsimmons Cr. Comment
  CAS-BOT-BC103943  Salix exigua Peter Rubtzoff 1957-5-26 3371 Sonoma Vacation Beach, near Guerneville. Sandy bank of Russian River Comment
  CAS-BOT-BC103945  Salix exigua Peter Rubtzoff 1969-8-29 6179 Sonoma Pond ca. 3 mi. west of Fulton on River Road Comment
  CAS-BOT-BC103948  Salix exigua Peter Rubtzoff 1957-5-26 3370 Sonoma Vacation Beach, near Guerneville. Sandy bank of Russian River Comment
  RSA534507  Salix exigua Peter Rubtzoff 1966-4-30 5698 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 mile from Llano Road. Comment
  RSA155474  Salix laevigata L. S. Rose 1962-4-18 62022 Sonoma 1 mile NW of Freestone. 76 Comment
  UC453090  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 10 Sonoma Bohemian Grove near Monte Rio; Russian R. Comment
  UC453098  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 16 Sonoma Bohemian Grove near Monte Rio (lower bank of Russian R.); Russian R. Comment
  UC482064  Salix lasiandra subsp. lasiandra Baker, Ball, Bracelin, and Crum 1931-5-9 347 Sonoma ca. 2 km. e. Bodega Bay (near Bodega, on Santa Rosa - Bodega Hwy., Larkspur R__k) Comment
  UC482065  Salix lasiandra subsp. lasiandra Baker, Ball, Bracelin, and Crum 1931-5-9 347 Sonoma ca. 2 km. e. bodega Bay Comment
  CAS-BOT-BC107087  Salix lasiolepis Mary P. Wells 1986-2-2 735 Sonoma north of Wild Moor Reach, The Sea Ranch Comment
  UC517941  Salix lasiolepis W. A. Setchell 1934-3-17 Sonoma Monte Rio; left hand side of road entering Bohemian Grove Comment
  UC66159  Salix lasiolepis A. A. Heller 1902-3-10 5016 Sonoma hills 2 mi se Santa Rosa Comment
  RSA534484  Salix lasiolepis var. bigelovii Peter Rubtzoff 1966-11-9 5837 Sonoma Salmon Creek near Freestone. Comment
  UC490559  Salix melanopsis Joseph P. Tracy 1932-5-8 9898 Sonoma Geyserville Northern Coast Ranges, Geyserville Comment
  UC490560  Salix melanopsis Joseph P. Tracy 1932-5-8 9897 Sonoma Geyserville Northern Coast Ranges, Geyserville Comment
  CAS-BOT-BC126183  Salix scouleriana W. A. Setchell 1934-7-10 5 Sonoma Coast Highway above Fort Ross Comment
  CAS-BOT-BC126188  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 343 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  CAS-BOT-BC126196  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 342 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  POM219058  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  UC1135087  Salix scouleriana E. Armstrong 1934-3-26 904 Sonoma 1 mi. w. Camp Meeker; Sebastopol Quadrangle 152 Comment
  UC524791  Salix scouleriana W. A. Setchell 1934-7-10 8 Sonoma Ridge Hwy. above Fort Ross Comment
  UCD111843  Salix scouleriana Baker; Ball, Bracelin, and Crum 1931-5-9 342 Sonoma Two km. east of Occidental. Comment
  CAS-BOT-BC126185  Salix scouleriana W. W. Schneebeli 1963-7-1 s.n. Sonoma Joy Grade Road on Fathergill Ranch west of Occidental Comment
  CAS-BOT-BC128903  Salix sitchensis Ball; Bracelin; Parks & Parks 1931-4-21 36 Sonoma Maacama Creek, 25 km. northwest of Calistoga Comment
  CAS-BOT-BC128905  Salix sitchensis Ball; Bracelin; Parks & Parks 1931-4-21 35 Sonoma Maacama Creek, 25 km. northwest of Calistoga Comment
  CAS-BOT-BC128908  Salix sitchensis Mary P. Wells 1982-8-21 120 Sonoma North end of South Gerstle Cove, Salt Point State Park Comment
  UC498691  Salix sitchensis Annetta Carter 1933-2-18 254 Sonoma 185 yds. from ocean Fort Ross (beside creek) 3 Comment
  UCD161270  Salvia columbariae James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3699 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  UCR255030  Salvia columbariae Greg de Nevers 1993-5-30 10466 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC225208  Salvia sonomensis Alice Eastwood 1923-5-9 s.n. Sonoma Mt. St. Helena Comment
  RSA396195  Salvia sonomensis F. H. Utech, Walter Knight, I. Knight 1984-4-16 84 -99 Sonoma ca 4.0 mi NNW of Sanoma on Cavedale Road from junction with CA hwy 12; ca 1.6 mi N on Cavedale Road from junction 396 Comment
  UCR30517  Salvia sonomensis John C. Roos 1939-4-1 311 Sonoma Hood Peak Range, west of Calistoga. Comment
  CAS-BOT-BC245889  Sambucus nigra subsp. caerulea G. DeNevers 1981-5-9 1013 Sonoma Below the red corral at the McCann Homestead, Pepperwood Ranch Comment
  UCD160126  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1973-6-6 2958 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  UCSB15938  Sambucus nigra subsp. caerulea 1962-6-6 Sonoma Along State Highway 128, 0.9 mile northwest of U.S. Highway 101 at Cloverdale 106 Comment
  SEINET10501134  Sambucus racemosa var. arborescens Frederick H. Utech, Walter Knight; Irja Knight 1984-4-17 Utech 84 -159 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek Rd. Tree to 10 ft tall; edge of Redwood Forest Association. 145 Comment
  UC1005695  Sanicula arctopoides Frank W. Gould 1939-2-25 566 Sonoma Sonoma County 91 Comment
  UC73327  Sanicula arctopoides Milo S. Baker 1898-4-5 6 a Sonoma between Stewarts Point and Sea View Comment
  CHSC34607  Sanicula bipinnatifida Jeffrey D. Prouty 1979-4-11 224 Sonoma Ca. 7 mi n of Santa Rosa. Grassy slope ca. 100 yds w of Mark West Springs Rd., ca. 300 yds n of jctn. with Michelle Way. 164 Comment
  RSA52124  Sanicula bipinnatifida A. A. Heller, H. E. Brown 1902-3-14 5066 Sonoma Near Windsor Comment
  UCD128015  Sanicula bipinnatifida Caitlin Lewis; William Mutch 1993-4-17 1 Sonoma About 40 air miles north of San Francisco, 11 air miles east of Santa Rosa and 2.5 air miles northeast of Kenwood. In Adobe Canyon north of Sugarloaf Ridge and south of Red Mountain 1 mile. Near visitor center. 365 Comment
  POM117139  Sanicula crassicaulis Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UCD151099  Sanicula crassicaulis James A. Neilson Jr. 1973-6-3 3003 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 441 Comment
  CAS-BOT-BC251239  Saponaria Peter Rubtzoff 1955-8-7 2028 Sonoma Guerneville Marsh. Comment
  JEPS82982  Saxifraga californica Patrick Elvander 1982-3-27 1021 Sonoma 2.2 mi on road to Sugarloaf State Park (from Hwy 12, 7 mi e of Santa Rosa) Comment
  CAS-BOT-BC441179  Saxifraga mertensiana Milo S. Baker; et al 1926-4-14 179 a Sonoma Cliff near Yellow Larkspur Comment
  UCD102936  Saxifraga mertensiana Rimo Bacigalupi 1948-3-6 2854 Sonoma One mile west of Skaggs Springs. Comment
  JEPS77257  Scandix pecten-veneris Robert M. Lloyd 1963-4-24 2395 Sonoma 13.8 mi from State Highway 12 (on road to Oakdale) 365 Comment
  UCD128058  Scandix pecten-veneris Botany 102 Students 1993-4-24 88 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Hillside Trail. 411 Comment
  CAS-BOT-BC283138  Schedonorus arundinaceus Catherine Best 1981-4-4 s.n. Sonoma North side of Bodega Bay Comment
  CAS-BOT-BC422370  Schedonorus arundinaceus Peter Rubtzoff 1962-5-25 4835 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  CAS-BOT-BC111432  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1958-8-31 3955 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC111532  Schoenoplectus americanus Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7803 Sonoma Kenwood Marsh. Comment
  SD134081  Schoenoplectus californicus Peter Rubtzoff 1962-8-3 5030 Sonoma Lower Salmon Creek Marsh, in open wet mud, formerly under water. Comment
  RSA0015641  Schoenoplectus maritimus Peter Rubtzoff 1960-10-29 4579 Sonoma Bodega Harbor Marsh. Comment
  RSA0019149  Schoenoplectus maritimus Peter Rubtzoff 1955-8-6 2021 Sonoma Bodega Harbor Marsh. Comment
  RSA0009471  Schoenoplectus pungens Marcus E. Jones 1882-7-18 3526 Sonoma Duncan Mills. Comment
  CAS-BOT-BC111797  Schoenoplectus pungens var. badius Marcus Eugene Jones 1882-7-18 3526 Sonoma Duncan's Mills Comment
  CAS-BOT-BC111800  Schoenoplectus pungens var. badius Peter Rubtzoff 1955-8-20 2067 Sonoma Bodega Harbor Marsh. Comment
  UC70382  Scoliopus bigelovii Milo S. Baker 1898-4-3 Sonoma near Guerneville Comment
  CAS-BOT-BC516414  Scoliopus bigelovii Alfaretta Wood No date on label. s.n. Sonoma Duncan's Mill Comment
  SEINET12050533  Scoliopus bigelovii F. H. Utech 1988-1 88 -198 Sonoma 6 mi W of junction of Willow Creek Rd & Coleman Valley Rd on former along Willow Creek 40 Comment
  SEINET12051402  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -224 Sonoma ca 0.15 mi SE from East Avenue jct with Bohemian Rd on latter enroute to Occidental from Camp Meeker 140 Comment
  SEINET12058068  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -006 Sonoma 5.75 mi W of jct of Willow Creek Rd & Coleman Valley Rd on former near headwater of Willow Creek 60 Comment
  SEINET926249  Scoliopus bigelovii Frank W. Gould 1939-1 562 Sonoma 2 miles south of Ft. Boss. Comment
  UCD124849  Scrophularia californica Terri Williamson 1990-5-20 51 Sonoma Bayflat Road, Bodega Bay. 3 Comment
  UCD161244  Scrophularia californica James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3694 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  UCD167316  Scutellaria James Neilson 1977-6-7 3908 Sonoma Mayacmas Mountains, about 1/3 mi south east Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  UC478878  Scutellaria californica Marcus E. Jones, A. M. 1931-7-5 28823 Sonoma w of Cloverdale Comment
  UC905116  Scutellaria tuberosa Milo S. Baker 1947-4-22 11695 Sonoma Hood Mountain, along trail towards cliffs Hood Mountain 243 Comment
  HSC6467  Sedella pumila Leo Koch 1940-4-24 848 Sonoma N of Agua Caliente Comment
  UCD151102  Sedum spathulifolium James A. Neilson Jr. 1973-6-3 2946 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  CAS-BOT-BC63941  Sedum spathulifolium J. F. Emmel 1970-5-10 274 Sonoma .3 air mile E of confluence of Rancheria Creek and Warm Springs Creek on Stewarts Pt. Skaggs Springs Road. 144 Comment
  RSA683758  Selaginella bigelovii June N. Ackley 1937-02 424 Sonoma Bridgehaven, western edge of Colorado Desert. 427 Comment
Read comments Apr 9 2013
  SEINET10471225  Selaginella wallacei A. Arthur Heller 1902-3-10 Heller 5024 Sonoma Hills two miles east of Santa Rosa. Comment
  UCD33565  Semiarundinaria fastuosa Beecher Crampton 1970-3-12 8543 Sonoma Sonoma County, El Verano, Green Tree Nursery. Comment
  CAS-BOT-BC363430  Senecio aronicoides A. A. Heller; H. E. Brown 1902-4-11 5264 Sonoma Bodega Bay Comment
  UCR45083  Senecio greenei L. F. LaPre 1986-5-31 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  UC1299457  Senecio minimus Freed W. Hoffman 1946-9-1 1236 Sonoma ocean bank Bodega Park; North Coast Ranges, Bodega Park Comment
  CAS-BOT-BC364219  Senecio sylvaticus Peter Rubtzoff 1969-8-14 6135 Sonoma Coleman Marsh Comment
  UCD18204  Senecio sylvaticus Joe Ditomaso 2001-5-9 s.n. Sonoma Bodega Bay Marine Lab, in sand dunes near housing facility. Comment
  JEPS128269  Senecio vulgaris Roger Raiche 2000-4-8 025 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC80327  Sequoia sempervirens Peter Rubtzoff 1983-7-30 9669 Sonoma Annapolis area, near the road from [Annopolis] Annapolis to the coast, 3.6 miles from Hwy 1 Comment
  SEINET3876427  Sequoia sempervirens Ralph R. Wilson 1939-7-25 438 Sonoma Ft. Ross. 1/2 mile from ocean.; 0 Comment
  CAS-BOT-BC240276  Setaria viridis G. DeNevers 1981-6-20 1653 Sonoma Pepperwood Ranch. Along Franz Valley Road, N side of main hill at bottom of Hill Comment
  CAS-BOT-BC290628  Sidalcea Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC187881  Sidalcea calycosa subsp. rhizomata Lillian Reinecke 1940-4-20 s.n. Sonoma Black Point Road, 5 miles S of Sonoma Comment
  RSA293430  Sidalcea diploscypha Reino Alava 1958-5-24 2060 Sonoma About 4 miles east of Occidental Comment
  UCD116611  Sidalcea diploscypha Botany 102 Students 1993-5-8 239 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Adobe Canyon. Comment
  UCD14885  Sidalcea malviflora Chris Chan 1991-3-5 6 Sonoma California, Sonoma Co.; along Bay Hill Road on a southwest-facing hill overlooking Bodega Bay; 182 Comment
  CHSC66957  Sidalcea malviflora subsp. laciniata James D. Jokerst; Lorie May 1993-5-13 3980 Sonoma Sonoma Air Center. Comment
  CAS-BOT-BC540830  Sidalcea oregana subsp. valida Peter Rubtzoff 1979-7-15 9292 Sonoma Knights Valley. South side of Bavarian Lion Company ranch road, 1.25-1.5 miles west of its junction with Franz Valley Road. Comment
  CAS-BOT-BC311840  Silene Peter Rubtzoff; H. A. Froebe 1971-5-30 6477 Sonoma Vernal pool 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC361292  Silene Greg de Nevers 1993-5-16 10449 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Devil's Kitchen east of 3865 Franz Valley Road 457 Comment
  CAS-BOT-BC384436  Silene coronaria Peter Rubtzoff 1954-6-19 1498 Sonoma East Guernewood, near Guerneville Comment
  UC1541419  Silene gallica H. E. and S. T. Parks 1930-5-10 846 Sonoma Knights Valley 152 Comment
  UCR248744  Silene gallica Peter Rubtzoff 1974-5-26 7487 Sonoma Bennett Valley Road, 4.25 miles west of Glen Ellen Comment
  CAS-BOT-BC392499  Silene gallica Peter Rubtzoff 1952-5-10 1020 Sonoma Bordering the Upper Marsh in the east. Comment
  SEINET11935783  Silene gallica P. G. Connors 1991-1 Sonoma Bodega Marine Reserve 9 Comment
  SEINET4856109  Silene grandis Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point. Comment
  CAS-BOT-BC389228  Silene laciniata subsp. californica Volney Rattan 1877-6-12 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC389223  Silene laciniata subsp. californica A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero Comment
  CAS-BOT-BC389225  Silene laciniata subsp. californica G. DeNevers 1981-5-23 1255 Sonoma Pepperwood Ranch. Along Franz Valley Road Comment
  UCD135839  Silybum marianum Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-21 049 -A Sonoma near unused barn by Sea Ranch Lodge. Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC74920  Sinapis arvensis L. R. Abrams 1943-5-2 14332 Sonoma Vacant lot along U.S. Highway 101, Healdsburg. Comment
  CAS-BOT-BC75370  Sisymbrium officinale Peter Rubtzoff 1951-7-21 490 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh. Near the highway. Comment
  JEPS108631  Sisyrinchium bellum W. Roderick Sonoma NW of Glen Ellen Comment
  SEINET5272562  Sisyrinchium californicum Unknown 1994-4-3 81 Sonoma approx. 6.5mi SE of Gualala in the Sea Ranch community on the Pacific Coast; Hwy 1 Comment
  UC1134661  Smilacina racemosa E. Armstrong 1934-3-26 917 Sonoma 2 mi s Camp Meeker; Sebastopol Quadrangle Comment
  UC496431  Smilacina racemosa Merle Randall 1930-6-11 Sonoma near Cazadero Comment
  CAS-BOT-BC164418  Solanum Peter Rubtzoff 1965-8-22 5613 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC164707  Solanum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7845 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC164712  Solanum Peter Rubtzoff 1956-9-16 2929 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC164687  Solanum Peter Rubtzoff 1951-8-5 594 Sonoma Mirabel Park, 1.5 miles north of Forestville. Comment
  UCD126816  Solanum americanum C. B. Heiser; D. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  UCD126855  Solanum carolinense T. C. Fuller 1967-9-12 16360 Sonoma 1605 Laguna Road, Sebastopol. Comment
  UC1125083  Solanum umbelliferum E. Armstrong 1934-3-26 931 Sonoma 4 mi n of Camp Meeker 91 Comment
  NY820383  Solanum xanti A. A. Heller 1902-3-16 5076 Sonoma Russian River, Near Trenton Comment
  CAS-BOT-BC365262  Solidago velutina subsp. californica J. W. Congdon 1880-9-1 s.n. Sonoma Petaluma Comment
  UCD159447  Solidago velutina subsp. californica D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 204 Sonoma Hill near W Shore Rd. Overlooking Campbell Cove. 29 Comment
  UCR255522  Solidago velutina subsp. californica Peter Rubtzoff 1961-9-6 4745 Sonoma 2 miles NE of Freestone 58 Comment
  UCR280137  Soliva sessilis Peter Rubtzoff 1971-5-8 6444 Sonoma Eastern foothills of Sonoma Mountains, on Sobre Vista Road, 0.9 miles west of Arnold Drive 137 Comment
  UCD133996  Sonchus asper subsp. asper Frederica Bowcutt; Jolie Henricks and Jeff Kennedy 1994-5-1 1772 Sonoma Sugarloaf Ridge State ParkAbout 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 1.5 air miles NE of Kenwood and 18 air miles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge along the S edge of Sonoma Creek at the parking lot/trail head of Goodspeed Trail. 198 Comment
  UCD92809  Sorghum bicolor subsp. drummondii David L. Morgan 1955-8-1 s.n. Sonoma On Arnold Drive, 3 miles S of Sonoma State Home. Comment
  UC813854  Sparganium erectum subsp. stoloniferum Roxana S. Ferris 1937-8-18 9373 Sonoma mouth of Salmon Creek Bodega Bay (on Bodega Bay) Comment
  SEINET11787288  Sparganium eurycarpum W. Knight, Knight, I. 1984-1 5012 Sonoma at Sea Ranch property 23 Comment
  CAS-BOT-BC236635  Spartina foliosa James Moffett 1928-10-8 s.n. Sonoma Black Pint cut-off Comment
  CAS-BOT-BC258918  Spergula Peter Rubtzoff 1954-7-27 1576 Sonoma Guerneville Marsh. Comment
  UCD160215  Spergula arvensis James A. Neilson Jr. 1974-5-1 3059 b Sonoma On the border of Lake and Sonoma Counties: Mayacmas Mountains, Geyser Rock area, west of Whispering Pines and State Highway 175. (Elevation estimated using Google Earth by label maker.) 1115 Comment
  UCD99214  Spergularia macrotheca Mary M. Hektner; Cathy Hendel 1974-7-25 176 Sonoma at west end of Fish Rock Road; Unit 35-A Owners' Map, Sea Ranch, near Highway 1. Comment
  CAS-BOT-BC390515  Spergularia macrotheca var. macrotheca Walter Knight; Irja Knight 1963-8-13 139 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC390518  Spergularia macrotheca var. macrotheca Alice Eastwood; John Thomas Howell 1937-5-31 4502 Sonoma 6 miles north of Bodega Bay Comment
  RSA518741  Spergularia rubra Barbara Ertter 1988-11-5 8027 Sonoma Lake Sonoma 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  SEINET11933368  Spergularia villosa W. Knight, Knight, I. 1984-1 5085 Sonoma near Gilardi's Resort, near Lakeville along Petaluma River Comment
  CAS-BOT-BC376238  Spiranthes porrifolia Greg de Nevers 1995-7-20 10762 Sonoma Field redacted by CAS, contact the data manager for more information 487 Comment
  UCD167318  Stachys James Neilson 1977-6-7 3910 Sonoma Mayacmas Mountains, about 1/3 mi south east Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  JEPS87220  Stachys ajugoides Jack and Betty Guggolz 1992-6-22 1320 Sonoma cattle pasture se Knowles Corner 36 Comment
  UCD160979  Stachys albens James A. Neilson Jr. 1975-7-8 3403 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  UCD126021  Stachys bullata Author Unknown Date Unknown s.n. Sonoma exact location unknown. Comment
  SEINET6744782 Image available Stachys chamissonis Marcus E. Jones 1882-1 Sonoma Duncan's Mills Comment
Read comments Apr 7 2018
  POM252831  Stachys emersonii A. A. Heller 1938-5-14 s.n. Sonoma Just east of Bodega Bay. Comment
  UCD151096  Stachys rigida James A. Neilson Jr. 1973-6-3 2974 Sonoma Mayacmas Mountains. The Geysers. Site I. In Geyser Canyon. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  CAS-BOT-BC366880  Stachys stricta Greg de Nevers 1993-8-8 10485 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At marsh above Skovie, at base of Telegraph Hill. 400 Comment
  UC25954 Image available Stachys stricta J. Burtt Davy 1894-6-18 Sonoma Knight's Valley; ; Knight's Valley, Sonoma Co. Comment
  CAS-BOT-BC175336  Stellaria borealis subsp. sitchana Peter Rubtzoff 1951-6-9 153 Sonoma Northern half of Lower Marsh. The Pitkin Marsh, near Forestville Comment
  UCD99339  Stellaria borealis subsp. sitchana Mary M. Hektner 1974-6-27 77 8 Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC136315  Stellaria littoralis Alice Eastwood Jun 1899 Sonoma Bodega Point Comment
  CAS-BOT-BC251256  Stellaria media Peter Rubtzoff 1964-7-29 5437 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC397766  Stellaria media John H. Thomas 1976-6-15 18310 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC397771  Stellaria media Peter Rubtzoff 1981-4-27 1116 Sonoma Pitkin Marsh, near Forestville; Thickets south of the Upper Marsh. Comment
  CAS-BOT-BC371406  Stellaria nitens Greg de Nevers 1993-3-24 10333 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. Weimar Canyon 457 Comment
  SEINET1783484  Stipa pulchra A. A. Heller 1902-4-9 5252 Sonoma 3 mi S of Healdsburg. Comment
  UCD167448  Streptanthus James Neilson 1983-6-13 4095 Sonoma East Austin Creek tributary. (On the same date Neilson was in the upper reaches of East Austin Creek, however the exact tributary is unknown. Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC61215  Streptanthus brachiatus Lawrence F. LaPre 1985-6-25 s.n. Sonoma Around Socrates Mine, west of Pine Flats Road. Comment
  UC1292755  Streptanthus glandulosus Freed W. Hoffman 1947-6-4 1066 Sonoma near Dorr's Cabin, East Austin Creek Comment
  UC410837  Streptanthus glandulosus subsp. glandulosus Miss Anna F. Rodda 1929-5-6 Sonoma Geyserville Comment
  JEPS86337  Streptanthus glandulosus subsp. secundus Jack and Betty Guggolz 1988-5-8 928 Sonoma outcrop on e side of Pine Flat Road 7.9 mi from Hwy 128 Comment
  UC985967  Streptanthus glandulosus subsp. secundus Freed W. Hoffman April, 1948 2701 Sonoma Gabe's Rock North Coast Range, Poole Ridge (1 mi nw of Guerneville) Comment
  UC1492787  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1931-5-24 3862 Sonoma a little w Blue Knoll (w of Cazadero); North Coast Ranges, Ungewitter Ranch Comment
  CAS-BOT-BC87296  Streptanthus glandulosus subsp. sonomensis Peter Rubtzoff 1964-6-6 s.n. Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  JEPS128181  Streptanthus morrisonii Roger Raiche 2001-3-17 008 .01 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS82240  Streptanthus morrisonii Roger Raiche 1983-8-6 30581 Sonoma headwaters Austin Creek (The Cedars); , Austin Creek 182 Comment
  UCD167367  Streptanthus morrisonii James Neilson Date Unknown 4060 Sonoma Hillside due east of Layton Mine. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167449  Streptanthus morrisonii James Neilson 1983-6-13 4096 Sonoma wind ridge upper East Austin Creek. East side of the Cedars. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD168066  Streptanthus morrisonii James Neilson 1981-5-28 4032 Sonoma Mayacmas Mountains, Shell Well Site B. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site B was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  UCD168068  Streptanthus morrisonii James Neilson 1981-5-28 4032 Sonoma Mayacmas Mountains, Shell Well Site B. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site B was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  UC1292745  Streptanthus morrisonii Freed W. Hoffman 1950-6-17 3378 Sonoma Steelhead Gulch North Coast Ranges Comment
  NY185750  Streptanthus morrisonii subsp. hirtiflorus F. W. Hoffman 1948-6-17 2344 Sonoma North Coast Ranges; above Dorr's Cabin, headwaters of East Austin Creek Comment
  UC956621  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1946-9-26 1020 Sonoma Layton Chromite Mine North Coast Ranges, Big Austin Creek (headwaters of creek); headwaters of Big Austin Creek at Layton Chromite Mine, Sonoma Co. Comment
  UCD166222  Symphoricarpos Peter Rubtzoff 1970-6-14 6259 Sonoma Marsh on River Road, about 3 miles west of Fulton. Comment
  CAS-BOT-BC245856  Symphoricarpos James McMurphy 1909-5-29 s.n. Sonoma Between Geyser Peak and Black Mountain Comment
  UC353794  Symphoricarpos mollis Milo S. Baker Jun 1928 3168 a Sonoma e side Los Guilucos Valley (road to Youngman's) Comment
  UCR255676  Symphyotrichum Greg de Nevers 1997-8-17 11078 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa, Oak Hill Ranch 400 Comment
  CAS-BOT-BC97816  Symphyotrichum chilense Peter Rubtzoff 1958-8-9 3826 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road) Comment
  UCD136522  Symphyotrichum chilense Mary M. Hektner; Sue Dakizaku and Cathy Hendel 1974-6-28 83 Sonoma Unit 21 Owner's Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC97833  Symphyotrichum chilense Walter Knight; Irja Knight 1963-9-25 118 Sonoma [Coffy] Coffee Lane, Coddington Comment
  UC29833  Symphyotrichum subspicatum Harley P. Chandler 1900-5-25 698 Sonoma Bodega Bay Comment
  UC1735312  Symphyotrichum subspicatum J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-14 9329 Sonoma W of Glen Ellen, 6471 Sonoma Mountain Road Comment
  UCD86177  Taeniatherum caput-medusae G. F. Hrusa; R. Gross 1999-6-12 15078 Sonoma Foote Ranch, corner of Ida Clayton Rd and Hwy 128, Knights Valley. Comment
  SEINET10575096  Tamarix parviflora John F. Gaskin 1998-7-2 Gaskin 78 Sonoma Hyde and Pearson Road, E 150 yds to corner. Comment
  CAS-BOT-BC447459  Tellima grandiflora Dorothy Scherer 1997-5-6 100 Sonoma Lower Fort Ross Cr, north side, Fort Ross State Historic Park 7 Comment
  CAS-BOT-BC366874  Thalictrum polycarpum Greg de Nevers 1998-4-27 11200 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  POM68315  Thermopsis californica var. californica Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma Comment
  RSA87001  Thermopsis californica var. californica F. W. Peirson, Mabel B. Peirson 1926-4-1 6546 Sonoma 3 miles south of Santa Rosa. Comment
  SEINET12165190  Thermopsis macrophylla F. H. Utech 1986-1 86 -116 Sonoma ca 6 mi NE on Cavedale Road from junction with CA 12 600 Comment
  SEINET6934810  Thermopsis macrophylla var. argentata W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Ca. 1 mile west of Annapolis. Comment
  CAS-BOT-BC66803  Thysanocarpus curvipes John Thomas Howell 1929-6-9 4299 Sonoma 2 miles north of Sonoma. Comment
  CAS-BOT-BC66808  Thysanocarpus curvipes John Thomas Howell 1933-4-2 10935 Sonoma Sonoma Creek Canyon. Comment
  CAS-BOT-BC66817  Thysanocarpus curvipes G. DeNevers 1981-4-25 843 Sonoma Pepperwood Ranch. At the big road cut and turnout below Walter Ward's House on Franz Valley Road. Comment
  CAS-BOT-BC447593  Tiarella trifoliata subsp. unifoliata Peter Rubtzoff 1957-7-28 3395 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC447595  Tiarella trifoliata subsp. unifoliata Catherine Best 1980-7-1 s.n. Sonoma Growing on the bank of Dutch Bill Creek about 1 mile north of Occidental Comment
  UC420446  Tiarella trifoliata var. unifoliata Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  CAS-BOT-BC447598  Tiarella trifoliata var. unifoliata Volney Rattan 1877-6-14 118 Sonoma Guernville Comment
  UC909775  Torilis arvensis Milo S. Baker June 1950 12277 Sonoma South end of bridge across Sonoma Creek at Baker Ranch near Kenwood. Comment
  CAS-BOT-BC81456  Torreya californica Peter H. Raven; R. Snow 1958-7-23 13685 Sonoma on south bank of Wheatfield Fork of Gualala River, 12.5 miles east of Stewarts Point on road to Skaggs Springs Comment
  UCD93180  Torreyochloa pallida var. pauciflora P. G. Connors 1991-6-25 177 Sonoma Bodega Marine Laboratory. In Clark Marsh. Comment
  CAS-BOT-BC169262  Toxicodendron diversilobum Saichi Kawahara 1968-4-20 326 Sonoma Trinity Road, 1 mile northeast of Highway 12 152 Comment
  UCD110462  Toxicoscordion fremontii Christopher Mallek 2008-1 HC1- 1 Sonoma Hooker Canyon. 590 Comment
  CDA8947  Tracyina rostrata J. T. Howell 1967-6-17 42599 Sonoma Near ranch house on Arthur E. Cooley ranch at forks of Dry & Galloway Creeks. Northern Sonoma County. Comment
  UCSB21811  Tragopogon porrifolius McCarthy, Sharon 1965-4-17 Sonoma At corner of 5th Street West and McArthur Street, Sonoma 25 Comment
  SEINET6174104 Image available Trientalis europaea var. latifolia Sally Walker 1981-5-25 Sonoma 3 miles west of Occidental Sonoma co. Comment
  SEINET11995244  Trientalis latifolia F. H. Utech 1988-1 88 -207 Sonoma 6 mi W of Coleman Valley Road on Willow Creek Road, along Willow Creek 40 Comment
  CAS-BOT-BC173535  Trifolium Peter Rubtzoff 1974-6-2 7511 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC173538  Trifolium Peter Rubtzoff 1974-5-26 7485 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  SEINET7062818  Trifolium A. G. Vestal 1937-6-18 s.n. Sonoma Stewarts Point. UTM Zone 10, 464490mE, 4278527mN. (WGS84/NAD83). 0 Comment
  CAS-BOT-BC173533  Trifolium Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC173569  Trifolium Peter Rubtzoff 1974-5-18 7421 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCSC010633  Trifolium R. Morgan 2014-5-12 5637 b Sonoma Bodega Head Comment
  CAS-BOT-BC217061  Trifolium amoenum Peter G. Connors 1993-5-31 311 Sonoma West-facing slope near top of ridge, Fitzpatrick Lane, west of Occidental Comment
  UCD107142  Trifolium amoenum Enoch Torpen 1940-1 s.n. Sonoma Valley Ford area. Comment
  POM21666  Trifolium barbigerum A. A. Heller 1903-4-23 6609 Sonoma Fort Ross. Comment
  UC630839  Trifolium barbigerum P. B. Kennedy June, 1915 Sonoma Del Mar northern part of county Comment
  JEPS83493  Trifolium barbigerum var. andrewsii Jack and Betty Guggolz 1986-4-1 862 Sonoma ne Shilo Rd-Hwy 101 intersection (sw corner of a field) Comment
  SEINET7067270  Trifolium barbigerum var. andrewsii A. G. Vestal 1947-5-13 s.n. Sonoma About 1.6 miles east of Annaplis on the Annapolis Road. Coordinate datum: NAD27. UTM 10, 425816mE, 4285229mN. Comment
  UC750533  Trifolium bifidum var. decipiens Lewis S. Rose 1947-5-9 47135 Sonoma Occidental Comment
  UC165614  Trifolium ciliolatum Milo S. Baker 1898-5-7 641 Sonoma Glen Ellen Comment
  UCD165169  Trifolium depauperatum var. depauperatum Peter Rubtzoff 1974-5-26 7496 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD165131  Trifolium depauperatum var. depauperatum Peter Rubtzoff; Walter Lennon 1974-5-11 7393 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC376283  Trifolium fragiferum Greg de Nevers 1995-6-13 10752 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Trapper's Cabin yard 487 Comment
  POM89154  Trifolium fucatum F. W. Peirson 1926-4-1 6551 Sonoma 6 miles south of Cloverdale. Comment
  RSA90940  Trifolium fucatum F. W. Peirson, Mabel B. Peirson 1926-4-1 6551 Sonoma 6 miles south of Cloverdale. Comment
  SEINET6165257 Image available Trifolium fucatum Unknown 1982-5-24 s.n. Sonoma Duncan's Landing Comment
  POM21433  Trifolium gracilentum A. A. Heller, H. E. Brown, A. H. Heller 1902-4-9 5242 Sonoma Three Miles South of Healdsburg. Comment
  UCD165154  Trifolium gracilentum Peter Rubtzoff 1974-5-18 7429 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UC16904  Trifolium incarnatum unknown 1894-5-4 Sonoma Lytton Springs Healdsburg Comment
  SEINET12165542  Trifolium incarnatum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -158 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd., between Jimtown & Mercuryville 120 Comment
  UCD111236  Trifolium incarnatum Elsie Zeile Lovegrove 1954-4-21 s.n. Sonoma Near Sonoma. Comment
  CAS-BOT-BC368063  Trifolium microcephalum Greg de Nevers 1998-5-26 11261 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  UCR248354  Trifolium microcephalum Peter Rubtzoff 1983-8-28 9683 Sonoma Austin Creek, c. 0.5 mi. north of Hwy 116 on Cazadero Road 15 Comment
  CAS-BOT-BC361358  Trifolium microcephalum Greg de Nevers 1997-4-16 10939 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  CAS-BOT-BC368065  Trifolium microdon Greg de Nevers 1998-5-26 11263 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  UC165622  Trifolium microdon Milo S. Baker 1898-5-7 642 Sonoma Glen Ellen Comment
  UC80353  Trifolium microdon Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  CDA121  Trifolium repens D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .277 Sonoma Cavedale Rd. Comment
  UCR255722  Trifolium striatum Greg de Nevers 1998-5-12 11245 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCR261660  Trifolium striatum Ann Howald 2003-5-15 2337 Sonoma Inner North Coast Ranges, Sonoma Mountains, south end, upper east slope, c. 0.1 mile south of Rodgers Creek 205 Comment
  UCD165125  Trifolium subterraneum Peter Rubtzoff 1974-4-17 7373 Sonoma Upper Green Valley Marsh. Comment
  UC353905  Trifolium variegatum var. melananthum Milo S. Baker 1927-5-8 2142 a Sonoma along Bennett Valley Rd (near Summit) Comment
  UC725692  Trifolium willdenovii A. A. Heller 1902-6-10 Sonoma Santa Rosa Comment
  UCD165168  Trifolium wormskioldii Peter Rubtzoff 1974-5-26 7495 Sonoma Todd Road, 1.5 miles from hwy. 116 and 0.5 miles from Llano Road. Comment
  CAS-BOT-BC520853  Trillium albidum Greg de Nevers 1993-4-6 10361 Sonoma Pepperwood Ranch Natural Preserve: 3450 Franz Valley Road 304 Comment
  UCD151245  Trillium chloropetalum James A. Neilson Jr. 1974-4-24 2729 Sonoma Mayacmas Mountains, upper Squaw Creek. (Elevation estimated using Google Earth by label maker.) 883 Comment
  JEPS76933  Trillium ovatum Robert M. Lloyd 1963-2-24 2045 Sonoma abandoned picnic ground 0.5 mi. n. of Occidental on rd. to Camp Meeks 45 Comment
  UC1334890  Triphysaria eriantha subsp. rosea L. D. Thurman 1965-5-3 668 Sonoma Horseshoe cove on Bodega Head; Horseshoe cove n Bodega Head Comment
  SD130528  Triphysaria pusilla F. Almeda, G. DeNevers 1981-3-30 4890 Sonoma Pepperwood Ranch, SE facing slopes just west of the Redwood Canyon Comment
  UCSB22950  Triphysaria versicolor subsp. faucibarbata McCarthy, Sharon 1965-4-17 Sonoma West of 5th Street opposite Betancourt Street Intersection 25 Comment
  JEPS15322  Triphysaria versicolor subsp. versicolor H. S. Yates 1934-4-21 3793 Sonoma near Bodega; Sebastopol Quad., near Bodega Comment
  CAS-BOT-BC522355  Triteleia hyacinthina Peter Rubtzoff 1961-6-17 4621 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC522358  Triteleia hyacinthina Peter Rubtzoff 1971-5-8 6439 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mile west of Arnold Drive Comment
  CAS-BOT-BC522360  Triteleia hyacinthina Peter Rubtzoff 1969-5-11 6042 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner road. Comment
  CAS-BOT-BC522367  Triteleia hyacinthina H. C. Cantelow 1936-5-3 1326 Sonoma N of Shellville Comment
  POM221986  Triteleia hyacinthina W. C. Merrill 1895-05 s.n. Sonoma Ross Station [or Marin Co.] Comment
  RSA264776  Triteleia hyacinthina Peter Rubtzoff 1971-6-5 6511 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Road. Comment
  UC72473  Triteleia laxa Milo S. Baker 1898-4-23 580 Sonoma Santa Rosa Creek Canyon Comment
  CAS-BOT-BC527043  Triteleia laxa John Thomas Howell 1931-6-15 6689 Sonoma Near Sebastopol Comment
  CAS-BOT-BC527045  Triteleia laxa Alice Eastwood 1915-6-29 4886 Sonoma Bodega Point Comment
  RSA70138  Triteleia laxa F. W. Peirson, Mabel Peirson 1926-4-1 6547 Sonoma 6 miles south of Cloverdale. Comment
  UCSB15936  Triteleia laxa Breedlove, Dennis 1962-6-6 Sonoma Along State Highway 128, 1.5 miles northwest of U.S. Highway 101 at Cloverdale 121 Comment
  CAS-BOT-BC74106  Turritis glabra John Thomas Howell 1930-6-8 5291 Sonoma 8.5 miles north of Bodega Bay. Comment
  SD69963  Ulex europaeus Darley Howe 1968-5-21 4520 Sonoma 3.7 miles south of Bodega Bay on route 1 Comment
Read comments Feb 6 2013
  UC16921  Ulex europaeus Harley P. Chandler 1900-5-25 685 Sonoma Bodega Comment
  UCD108657  Ulex europaeus T. I. Storer 1930-6-24 2153 Sonoma Near Bodega. Comment
  POM21294  Ulex europaeus A. A. Heller, H. E. Brown 1902-3-22 7308 Sonoma Among Redwood Trees W of Sebastopol Comment
  SEINET9317589  Umbellularia californica John Nelson, Wnek, R. 2000-3-5 20956 Sonoma Livereau Creek Comment
  RSA39873  Umbellularia californica P. A. Munz 1947-10-9 12209 Sonoma 1.5 miles northeast of Armstrong Redwoods State Park. 91 Comment
  SEINET12090183  Umbellularia californica W. Knight, Knight, I. 1981-1 3963 Sonoma 2.3 mi up Cavedale Road from junction of State Route #12 Comment
  CAS-BOT-BC382823  Uropappus lindleyi K. L. Chambers 1978-4-29 4466 Sonoma Cloverdale to Fort Bragg road (Hwy. 128), 3.8 miles W of junction with Hwy. 101 at Cloverdale Comment
  CAS-BOT-BC382825  Uropappus lindleyi G. DeNevers 1981-4-25 847 Sonoma Pepperwood Ranch. Lower road cut turnout on Franz Valley Road, on Mark West Springs Road side Comment
  CAS-BOT-BC404226  Urtica dioica subsp. holosericea Peter Rubtzoff 1973-9-9 7311 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC404242  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-7-27 1588 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC404234  Urtica dioica subsp. holosericea Peter Rubtzoff 1964-8-26 5480 Sonoma Marsh 5 miles northeast of Penngrove on Lichan Road 213 Comment
  POM192687  Vaccinium parvifolium H. P. Bracelin 1930-7-27 22 Sonoma One mile N. of Fort Ross. Comment
  RSA471153  Vaccinium parvifolium Christopher Davidson 1977-6-20 6031 Sonoma Ridge Crest Rd., on Sea Ranch property south of Gualala River. 30 Comment
  UC912416  Vaccinium parvifolium Herbert L. Mason 1928-7-11 4892 Sonoma 2 miles north of Fort Ross Comment
  UCD95096  Vancouveria planipetala K. Esau 1932-8-28 s.n. Sonoma near Petrified Forest. Comment
  CAS-BOT-BC135770  Veratrum fimbriatum Saichi Kawahara 1968-8-28 497 Sonoma Salt Point Ranch 9 Comment
  CAS-BOT-BC154133  Verbascum Peter Rubtzoff 1951-9-3 735 Sonoma Vacation Beach, near Guerneville along Russian River Comment
  UCD166734  Verbascum blattaria Peter Rubtzoff 1955-7-17 1976 Sonoma Guerneville Marsh. Comment
  UCD165781  Verbena Peter Rubtzoff 1972-7-23 6836 Sonoma Forest Hills-Summerhome Park area, ca. 5 miles east of Guerneville; Terrace Drive, 0.4 miles up from Summerhome Park Road. Comment
  JEPS39095  Verbena lasiostachys var. lasiostachys W. L. Jepson 1921-9-12 9486 Sonoma Alexander Valley 45 Comment
  UCR129499  Verbena lasiostachys var. scabrida Don Pendleton 1993-5-29 s.n. Sonoma North Coast Ranges, 5297 Westside Rd, Russian River Valley, c. 5 mi SW of Healdsburg 46 Comment
  CAS-BOT-BC164398  Veronica Peter Rubtzoff 1966-6-5 5757 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCD166503  Veronica Peter Rubtzoff 1960-5-20 4397 Sonoma Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads). Comment
  UCR244667  Veronica Peter Rubtzoff 1969-3-30 6005 Sonoma Forest Hills, 5.5 miles east of Guerneville, at 9981 Old River Road 16 Comment
  CAS-BOT-BC164359  Veronica Peter Rubtzoff 1969-3-30 6005 Sonoma Forest Hills, 5.5 mi. east of Guerneville. At 9981 Old River Road. Comment
  UCR244741  Veronica americana Peter Rubtzoff 1962-5-11 4813 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  CAS-BOT-BC166806  Veronica americana Peter Rubtzoff 1962-6-22 4955 Sonoma Fife Creek Marsh. Comment
  UCD19306  Veronica americana Terry Reedy 1974-5-11 209 Sonoma Bodega Head, in freshwater marsh in open water. 6 Comment
  RSA0021066  Veronica peregrina subsp. xalapensis Peter Rubtzoff 1969-5-11 6037 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road. Comment
  JEPS19383  Veronica persica G. Thomas Robbins 1937-3-27 45 Sonoma Santa Rosa Comment
  CAS-BOT-BC257966  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh area. Comment
  UCD165332  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh area. Comment
  SEINET12165197  Vicia angustifolia F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -225 Sonoma Valley Ford, junction of CA 1 & Valley Ford-Freestone highway, along Ebabias Creek 30 Comment
  UCD108855  Vicia sativa subsp. nigra Botany 102 Students 1993-4-24 79 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Hillside Trail near beginning of trail S of Sonoma Creek. 381 Comment
  CDA36953  Vicia sativa subsp. sativa CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  RSA582459  Vicia villosa Joseph A. Ewan 1935-5-13 9245 Sonoma 2.5 miles west of Santa Rosa: Sebastopol Road. Comment
  UCD121401  Vinca major Anthony E. Hall 1965-4-11 16 Sonoma 3 miles west of Sebastopol. Comment
  UC1742244  Viola Milo S. Baker 1948-5-17 12040 Sonoma Brookside Garden Comment
  UC1761451  Viola lobata Milo S. Baker 1926-5-31 164 -1926 Sonoma Triniti road, 1 mi up Comment
  UC1749379  Viola lobata Milo S. Baker 1937-4-18 8633 Sonoma Hope Valley north of Chamberlain's House, ca. 3/4 miles Comment
  UCD110909  Viola lobata G. F. Hrusa 1992-4-15 10376 Sonoma Along Cavedale Road, approximately 5 m. E of Boyes Hot Springs. Comment
  UC1762485  Viola lobata subsp. lobata Milo S. Baker 1942-6-11 10206 Sonoma Spring Mt. Rd. near summit 45 Comment
  UC19294  Viola lobata subsp. lobata W. H. Brewer 1862-4-18 977 Sonoma summit of ridge 3 mi se of Sonoma Comment
  UC828264  Viola ocellata Milo S. Baker June 1939 9469 Sonoma between Occidental and Graton (s side of Meeker Grade); Meeker Grade Comment
  UC540625  Viola palustris subsp. brevipes Milo S. Baker 1935-8-1 7692 b Sonoma Kenwood Garden Kenwood; Kenwood, Sonoma Co. Comment
  POM179744  Viola pedunculata A. A. Heller, H. E. Brown 1902-4-23 5357 Sonoma Near Sonoma. Comment
  CHSC26275  Viola sempervirens P. Kunst 1977-4-12 25 Sonoma Ca. 3 ft to sw of Coleman Valley Rd and 0.8 mi w of Occidental. 207 Comment
  RSA40694  Viola sempervirens I. L. Wiggins 1948-3-21 11616 Sonoma Western margin of Kruse Rhododendron State Park. Comment
  CAS-BOT-BC135292  Viscum album Stanley Rose 1966-3-13 s.n. Sonoma about 1 mile N from Sebastopol on Gravenstein Highway North (#1090) Comment
  RSA201205  Viscum album Stanley Rose 1966-5-8 s.n. Sonoma On apple trees about 1 mile from Sebastopole on Gravenstein Highway North (1090) Comment
  SEINET12230244  Viscum album W. O. McCartney 1966-1 s.n. Sonoma NW corner of Mill Station Road and Gravestein North Highway, Sebastopol Comment
  CDA2768  Viscum album subsp. album C. W. Nichols, W. O. McCartney 1966-1-17 Sonoma In back yard of property, 1220 Gravenstein Highway North at Hill Station Road, 1 mile north of Sebastopol. 0 Comment
  RSA183446  Viscum album subsp. album William O. McCartney 1966-5-