Search Results — 2000 specimen records retrieved (1276 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78077  Abies grandis Roxana S. Ferris 1940-3-22 9841 Sonoma at Stillwater Cove Ranch, north of Fort Ross on State Highway #1 Comment
  CAS-BOT-BC78078  Abies grandis John Thomas Howell 1930-7-27 5398 Sonoma canyon 1 mile north of Fort Ross Comment
  UC221681  Abronia umbellata subsp. breviflora Alice Eastwood 1900-7-4 Sonoma Bodega Point Comment
  UCD112505  Acaena pinnatifida var. californica Frederica Bowcutt 1984-6-23 415 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. Immediately N of Gerstle Cove near large parking lot. 15 Comment
  UC718032  Acer macrophyllum Carl B. Wolf 1933-9-27 5513 Sonoma on rd to Calistoga 2 mi se Kellogg; se of Kellogg 91 Comment
  UCD117027  Acer macrophyllum G. F. Hrusa 1995-4-2 12051 Sonoma corner of Franz Valley School Road and Franz Valley Road. 200 Comment
  CAS-BOT-BC30082  Achillea millefolium Barbara Dows 1907-7-12 s.n. Sonoma Sebastopol 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-BC166795  Achyrachaena mollis Peter Rubtzoff 1974-5-26 s.n. Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC29159  Achyrachaena mollis D. D. Keck 1931-4-2 1000 Sonoma Boyes Springs 30 Comment
  CAS-BOT-BC29160  Achyrachaena mollis D. D. Keck 1931-4-2 1000 Sonoma Boyes Springs 30 Comment
  CAS-BOT-BC29157  Achyrachaena mollis A. A. Heller; H. E. Brown 1902-4-16 5304 Sonoma Fields east of Santa Rosa Comment
  CAS-BOT-BC29158  Achyrachaena mollis D. D. Keck 1933-5-28 2323 Sonoma 3.4 miles east of Shellville (jsut east of intersection of Sonoma Road) Comment
  CAS-BOT-BC26655  Acmispon aestivalis Amos Arthur Heller 1902-8-18 6051 Sonoma Santa Rosa Comment
  CAS-BOT-BC85  Acmispon aestivalis Amos Arthur Heller 1902-8-18 6051 Sonoma Santa Rosa Comment
  JEPS128216  Acmispon brachycarpus Roger Raiche 2000-5-4 057 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC391714  Actaea rubra L. R. Abrams 1920-7-3 7602 Sonoma Gualala River, near Mendocino - Sonoma County Line Comment
  JEPS128375  Adiantum aleuticum Roger Raiche 2000-5-5 092 .00 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  UC1193407  Adiantum jordanii P. Zinke 1950-4-25 113 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  CAS-BOT-BC9073  Aegilops triuncialis Thomas C. Fuller 1960-6-14 4483 Sonoma Roadside near Golf Course, Los Alamos Rd., ca. 6 mi. E/Santa Rosa Comment
  CAS-BOT-BC210115  Agoseris Peter Rubtzoff 1974-5-26 7470 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  CAS-BOT-BC173633  Agoseris Peter Rubtzoff 1974-5-19 7449 Sonoma Todd Road, 1.4 mi. from Hwy. 116, and 0.6 miles from Llano Road. Comment
  JEPS128199  Agoseris heterophylla Roger Raiche 2000-5-4 069 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC176398  Agrostis Peter Rubtzoff 1964-6-24 5378 Sonoma Coleman Marsh, along Salmon Creek Comment
  CAS-BOT-BC176399  Agrostis Peter Rubtzoff 1964-5-31 5337 Sonoma Fitch Mtn. Grove, 2 mi. E of Healdsburg, along Russian River Comment
  CAS-BOT-BC331480  Agrostis Peter Rubtzoff 1970-9-3 6377 Sonoma Marsh off west side of Highway 1, 0.7 miles southeast of Salmon Creek Crossing. Comment
  RSA785752  Agrostis Peter Rubtzoff 1971-6-29 6580 Sonoma Pitkin Marsh, near Forestville Comment
  RSA785929  Agrostis Peter Rubtzoff, H. A. Froebe 1971-5-30 6501 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road. Comment
  UCD148481  Agrostis Peter Rubtzoff 1964-7-14 5403 Sonoma Bennett Mountain Lake. Comment
  HSC83439  Agrostis blasdalei Mary M. Hektner 1975-6-2 195 Sonoma Sea Ranch, near State Hwy. 1, E of Walk-on Beach. Comment
  UCD37154  Agrostis blasdalei Beecher Crampton 1957-7-11 4340 Sonoma Sonoma County, 2.5 miles north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  UCD37148  Agrostis densiflora Beecher Crampton 1957-7-11 4320 Sonoma Sonoma County, 0.5 mile north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  UCD37160  Agrostis densiflora Beecher Crampton 1957-7-22 4367 Sonoma Sonoma County, Sonoma Coast State Park, 0.3 mile south of Stewart's Point, bluffs above Fisherman's Bay. Comment
  UCD52002  Agrostis densiflora Beecher Crampton 1957-7-11 4332 Sonoma Sonoma Coast State Park, 0.9 mile north of Salmon Creek. Comment
  CAS-BOT-BC127404  Agrostis elliottiana Catherine Best 1993-5-6 1413 Sonoma Pepperwood, growing in Weimar Meadow. Comment
  CAS-BOT-BC126967  Agrostis exarata A. A. Heller 1902-6-7 5654 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UC1146630  Agrostis exarata Freed W. Hoffman 1941-6-29 2069 Sonoma Sonoma Mountain Road North Coast Ranges Comment
  UC1146692  Agrostis exarata Freed W. Hoffman 1943-10-2 2171 Sonoma on Ross Road near Graton; North Coast Ranges Comment
  UCR244656  Agrostis exarata Peter Rubtzoff 1967-8-22 5855 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  UCD52441  Agrostis exarata H. S. Yates 1937-6-6 6577 Sonoma 3 miles W of Santa Rosa. 45 Comment
  CAS-BOT-BC139555  Agrostis gigantea Peter Rubtzoff 1951-7-21 508 Sonoma Pitkin Marsh near Forestville. Between the Upper and the Lower Marshes. Comment
  RSA129614  Agrostis hallii H. S. Yates 1936-5-16 5582 Sonoma 1 mile northeast of Graton. 30 Comment
  UCD37348  Agrostis hallii Beecher Crampton 1959-6-16 5379 Sonoma Sonoma County, 1 mile east of Occidental. Comment
  UCD52716  Agrostis hallii Roxana S. Ferris; Laura Lorraine 1961-6-15 13568 Sonoma About 1/8 mile beyond County Dump. Comment
  UCD53018  Agrostis microphylla Beecher Cramppon 1959-6-16 5381 Sonoma 1 mile east of Occidental. Comment
  CDA21566  Agrostis pallens D. G. Kelch 2003-7-14 3 .382 Sonoma Cavedale Road. Comment
  SD34475  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma County coast, 5 miles south of Steward Point, coastal bluffs. Comment
  CAS-BOT-BC176185  Aira caryophyllea Peter Rubtzoff 1974-5-25 7459 Sonoma Upper Green Valley Marsh. Comment
  JEPS45806  Aira caryophyllea Eleanor Armstrong 1932-6-4 188 Sonoma 1/2 mi w Camp Meeker (near St. Dorothy's Rest) 137 Comment
  RSA785372  Aira caryophyllea Peter Rubtzoff 1974-5-18 7438 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  UCD165152  Aira caryophyllea Peter Rubtzoff 1974-5-18 7438 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  UCD55791  Aira caryophyllea var. capillaris R. Tofsrud 1941-5-1 151 Sonoma Kenwood. Comment
  UCD55335  Alisma lanceolatum Ellen Dean 2006-6-28 3179 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-BC445341  Alisma lanceolatum Peter Rubtzoff 1962-7-4 4967 Sonoma Fitch Mtn. Grove, 2 mi. east of Healdsburg. Comment
  CAS-BOT-BC445348  Alisma lanceolatum Peter Rubtzoff 1955-7-10 1956 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC445349  Alisma lanceolatum Peter Rubtzoff 1958-7-20 3783 Sonoma Laguna de Santa Rosa northeast of Graton (nr. Guerneville Road). Comment
  CAS-BOT-BC445460  Alisma triviale Peter Rubtzoff 1951-7-28 565 Sonoma Pitkin Marsh, near Forestville.Lower part of the Upper Marsh Comment
  UC1083344  Allium amplectens Herbert L. Mason 1934-4-28 8076 Sonoma head of Dohrman Creek Dohrman Creek, Jensen's Ranch Comment
  CAS-BOT-BC466698  Allium cepa Peter Rubtzoff 1963-8-17 5226 Sonoma Near Petaluma River, just east of Petaluma Comment
  POM231288  Allium dichlamydeum David D. Keck, Jens Clausen 1935-6-15 3366 Sonoma 1 mile north of mouth of Salmon Creek. Comment
  JEPS77859  Allium hickmanii Robert M. Lloyd 1965-5-8 3624 Sonoma 3 mi n. of junction with Aqua Caliente Road Highway 12 (meadow across from Lawrence Triangle End Garage) Comment
  RSA123627  Allium peninsulare var. franciscanum Milo S. Baker 1936-5-1 s.n. Sonoma Hope Valley Comment
  CAS-BOT-BC474313  Allium unifolium Greg de Nevers 1992-4-29 10127 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In streambed above Rogers 475 Comment
  CAS-BOT-BC371473  Allium vineale Greg de Nevers 1994-6-29 10527 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On the road below Red Corral. 400 Comment
  CAS-BOT-BC478830  Allium vineale Greg de Nevers 1994-6-29 10527 Sonoma On road below Red Corral, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 457 Comment
  RSA786922  Alnus rhombifolia Carrie A. Herd 1982-03 23 Sonoma Crane Creek Regional Park Comment
  RSA800208  Alnus rubra Peter Rubtzoff 1973-10-10 7338 Sonoma Salmon Creek, 0.25 mi south of Freestone along creek canyon. Comment
  RSA800594  Alnus rubra Peter Rubtzoff 1969-7-21 6118 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC138151  Alopecurus aequalis var. aequalis Peter Rubtzoff 1961-6-17 4635 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC138040  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1962-6-13 4895 Sonoma Freestone Marsh. Comment
  UC576308  Alopecurus aequalis var. sonomensis H. S. Yates 1936-5-16 5603 Sonoma 2 mi. s.e. Forestville (Pitkin Marsh); Sebastopol Quad., Pitkin Marsh 30 Comment
  CAS-BOT-BC137906  Alopecurus saccatus A. S. Hitchcock 1902-6-10 5685 Sonoma Santa Rosa. Comment
  UCD150834  Alopecurus saccatus Ayzik Solomescsh 2009-5-13 s.n. Sonoma Vicinity of Santa Rosa, north of city of Rohnert Park. East of Hwy 101 and south of Horn Ave. Elevation estimated from Google Earth by label maker. 30 Comment
  CAS-BOT-BC258029  Amaranthus Peter Rubtzoff 1973-8-29 7284 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC540844  Amaranthus Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7843 Sonoma Kenwood Marsh Comment
  RSA234553  Amaranthus retroflexus Peter Rubtzoff 1971-8-31 6665 Sonoma Todd Road near Stony Point Road Comment
  OBI33919  Ambrosia chamissonis David J. Keil 1983-6-29 17190 Sonoma Doran Beach County Park, Bodega Head Comment
  CAS-BOT-BC55541  Ambrosia psilostachya Peter Rubtzoff 1951-9-15 762 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC135663  Amelanchier utahensis Robert Owen 1928-5-1 s.n. Sonoma Rio Nido Comment
  CAS-BOT-BC154125  Ammannia coccinea Peter Rubtzoff 1963-9-21 5271 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  CAS-BOT-BC177231  Amorpha californica var. napensis Brandegee 1893-7-1 s.n. Sonoma Cazadero Comment
  POM252870  Amorpha californica var. napensis A. A. Heller 1902-6-24 s.n. Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC222272  Amsinckia Rimo Bacigalupi 1928-6-18 1880 Sonoma At mouth of Salmon Creek 2 miles north of Bodega Bay Comment
  CAS-BOT-BC222282  Amsinckia John Thomas Howell 1934-3-26 11786 Sonoma Southwestern base of Mt. Hood Comment
  UC1303044  Amsinckia spectabilis Roxana S. Ferris 1932-5-27 8257 Sonoma Bodega Bay Comment
  HSC3552  Amsinckia vernicosa R. F. Good 1962-4-20 2 Sonoma 2 mi. W of Petaluma on D St., extension toward Pt. Reyes. Sonoma Mt. Coast Range. 46 Comment
  UCD117429  Anagallis arvensis Jennifer Bury; Peggy Herzog 1993-5-8 297 Sonoma Sugarloaf Ridge State Park, 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. On Bald Mountain Stem Trail. 371 Comment
  UCD117551  Anagallis arvensis Rene Westbrook 1976-4-15 16 Sonoma California: Bodega Head. Comment
  RSA0079932  Anemone oregana Greg de Nevers 1997-2-28 10902 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. West of Tower-in-Saddle, along fence line downhill from gate to Shurtleff property. 100 Comment
  UC70435  Anemone oregana Milo S. Baker 1903-3-19 Sonoma Sonoma; Creek canyon Comment
  CAS-BOT-BC271436  Anisocarpus madioides Volney Rattan 1877-6-16 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC271523  Anisocarpus madioides Edw. L. Greene 1894-6-14 s.n. Sonoma Knight's Valley 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-BC271443  Anisocarpus madioides John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 54015 Sonoma Fairfield Osborn Preserve of teh Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UCR218639  Anthemis cotula George K. Helmkamp, E. A. Helmkamp 2010-6-4 16219 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), about five miles east of its junction with US-101, 5.85 air mi. east (88 deg. ) of Windsor 145 Comment
  RSA796686  Anthemis cotula Peter Rubtzoff 1954-7-27 1566 Sonoma Guernerville Marsh. Comment
  CAS-BOT-BC137766  Anthoxanthum aristatum G. DeNevers 1982-5-2 1971 Sonoma Pepperwood Ranch. Along manzanita trail just before the tunnel. Comment
  JEPS71147  Anthoxanthum aristatum Eleanor Armstrong 1932-6-9 191 Sonoma near Camp Meeker 121 Comment
  UCD85356  Anthoxanthum occidentale Robert F. Thorne 1965-4-19 34316 Sonoma Harrison Grade. 1/2 mile from Green Valley Road. 152 Comment
  CAS-BOT-BC280666  Anthoxanthum occidentale K. Wagnon 1939-4-10 165 Sonoma About 1/2 mile south of Jonive Grammar School, six miles west of Sebastopol Comment
  CAS-BOT-BC137695  Anthoxanthum odoratum David L. Morgan 1961-4-15 s.n. Sonoma Russian River Highway 4 miles west of Monte Rio. Comment
  JEPS78901  Anthoxanthum odoratum Edward Lee 1936-6-8 2224 Sonoma Bohemian Grove, grounds near entrance Bohemian Grove Comment
  UCD36687  Anthoxanthum odoratum Beecher Crampton 1955-6-17 2940 Sonoma Sonoma County, 0.5 mile north of Guerneville, along Fife Creek. Comment
  UCR142043  Anthoxanthum odoratum Beecher Crampton 1955-6-17 2940 Sonoma North Coast Range, 0.5 mile north of Guerneville, along Fife Creek 30 Comment
  UCD56167  Anthoxanthum odoratum David L. Morgan 1956-5-23 s.n. Sonoma Middle Two Rock Road, 100 yds from junction of Petaluma-Valley Ford Rd. Comment
  UCD161271  Anthriscus caucalis James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3700 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
  HSC21459  Anthriscus caucalis James Faro 1962-4-17 32 Sonoma W end of Bodega Bay, N end Comment
  UCD151252  Antirrhinum vexillocalyculatum James A. Neilson Jr. 1974-7-10 2835 Sonoma Mayacmas Mountains. Little Geysers. 731 Comment
  JEPS83374  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-6-13 329 Sonoma e side Fitch Mt. (just s of resort area on e side, Healdsburg); Healdsburg, Healdsburg Quad. (7.5', 1955) 45 Comment
  UC26380  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum J. Burtt Davy 1894-12-9 867 Sonoma Kenwood Comment
  POM14615  Antirrhinum virga Mcluner, Bioletti 1893-06 s.n. Sonoma Hood's Peak Comment
  UC1299575  Apocynum androsaemifolium Freed W. Hoffman 1947-7-29 1418 Sonoma near Guerneville Guerneville (Gabe's Rock); North Coast Ranges, Gabe's Rock Comment
  CAS-BOT-BC394994  Aquilegia formosa Volney Rattan 1877-1-1 s.n. Sonoma Guerneville Comment
  LA204393  Arabis blepharophylla John Thomas Howell; 1930-6-8 5253 Sonoma 1 mi. east of Bodega Bay Comment
  CAS-BOT-BC171645  Aralia californica Greg de Nevers 8239 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC128617  Arbutus menziesii Saichi Kawahara 1968-4-20 325 Sonoma Trinity Road, 1 mile northeast of Highway 12 152 Comment
  UCD117476  Arbutus menziesii Jennifer Bury; Peggy Herzog 1993-5-8 266 Sonoma Sugarloaf Ridge State Park. 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. Near visitor center. 100 ft. above parking lot, on Lower Bald Mountain Trail. 402 Comment
  OBI14777  Arbutus menziesii David Burgess 1957-11-25 10 Sonoma On a Mountain East of Santa Rosa Comment
  CHSC67659  Arctostaphylos bakeri James D. Jokerst 1989-4-13 3095 Sonoma NE side of Hawson Grade Rd 0.4 mi N of its junction with Stoetz Rd., ca. 1 mi NE of Camp Meeker, N of Occidental, W of Santa Rosa. 228 Comment
  HSC7753  Arctostaphylos bakeri Freed W. Hoffman Apr 1948 2753 Sonoma Dutch Bill Creek near Camp Meeker Comment
  UC1120877  Arctostaphylos bakeri A. E. Wieslander 1936-9-19 707 Sonoma 1 mi nw Occidental; Sebastopol Quadrangle Comment
  UC549713  Arctostaphylos bakeri J. E. Adams 1935-3-1 1029 Sonoma 2 mi w Occidental Comment
  SEINET11998395  Arctostaphylos bakeri Unknown 1986-1 60001 Sonoma NE of Healdsburg, Reservoir Hill 122 Comment
  RSA622701  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24704 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  SBBG28818  Arctostaphylos bakeri subsp. bakeri L. S. Rose 1934-2-22 34032 Sonoma 2 mi E of Occidental Comment
  SBBG33672  Arctostaphylos bakeri subsp. bakeri C. Bornstein, E. Collins 2006-8-23 Sonoma Harrison Grade Rd, ca. 1 mi S of jct with Green Valley Rd 158 Comment
  CAS-BOT-BC23971  Arctostaphylos canescens subsp. canescens A. A. Heller; H. E. Brown 1902-3-27 s.n. Sonoma Western base of Mt. Hood Comment
  CAS-BOT-BC23974  Arctostaphylos canescens subsp. canescens Alice Eastwood 1915-6-5 4567 Sonoma Petrified Forest Comment
  RSA177924  Arctostaphylos canescens subsp. canescens R. F. Thorne 1965-4-20 34376 Sonoma 4 mi. up Cavedale Rd., ca. 6 mi. N of Sonoma. 457 Comment
  UCD170266  Arctostaphylos canescens subsp. canescens S. J. Seybold; M. A. Siefker 2017-11-14 s.n. Sonoma Vadasz Vineyards, 18070 Carriger Road.Located along driveway near house. 64 Comment
  CAS-BOT-BC23892  Arctostaphylos canescens subsp. sonomensis Walter Knight; Irja Knight 1985-12-29 6376 Sonoma Santa Rosa, Rincon Ridge. Montecito Drive and Rockridge Road, Finley property. 121 Comment
  CAS-BOT-BC23896  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1931-3-14 5760 Sonoma Rincon Ridge, near Santa Rosa Comment
  UC1120076  Arctostaphylos canescens subsp. sonomensis A. E. Wieslander 1939-3-18 876 Sonoma s edge Rincon Hills; Santa Rosa Quadrangle 121 Comment
  CAS-BOT-BC23602  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11745 Sonoma Between Fort Ross and Stewart's Point Comment
  CAS-BOT-BC23606  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11746 Sonoma Between Fort Ross and Stewart's Point Comment
  CAS-BOT-BC23650  Arctostaphylos columbiana J. E. Adams 1934-3-28 731 Sonoma Seven miles north of Fort Ross Comment
  OBI14762  Arctostaphylos columbiana H. E. McMinn 1938-6-20 5127 Sonoma Stewarts Point to Gualala Comment
  POM202851  Arctostaphylos columbiana J. T. Howell 1934-3-3 11743 Sonoma Between Fort Ross and Stewart's Point. Comment
  UCD50753  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth and Ken Milam 1965-4-13 496 Sonoma 0.1 mile north of Timber Cove, east of State Highway 1. Comment
  CAS-BOT-BC23638  Arctostaphylos columbiana Mary P. Wells 1985-10-4 669 a Sonoma About 1 mile south of Gualala River Comment
  CAS-BOT-BC23639  Arctostaphylos columbiana Mary P. Wells 1985-10-4 667 a Sonoma About 1 mile south of Gualala River Comment
  POM204431  Arctostaphylos densiflora J. T. Howell 1931-3-14 5770 Sonoma Vine Hill District Comment
  UC1084443  Arctostaphylos densiflora G. Thomas Robbins 1940-3-22 303 Sonoma ca 8.5 mi w Santa Rosa (apple orchard along Guerneville rd); Vine Hill region 45 Comment
  UC1120149  Arctostaphylos densiflora C. M. Belshaw 1936-3-7 1564 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC535026  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma near Vine Hill School House (some hundreds of yds e from type locality) Comment
  UC909866  Arctostaphylos densiflora J. E. Adams 1934-3-28 713 Sonoma Vine Hill School Sta. Rosa Comment
  UCD50804  Arctostaphylos densiflora L. Whitney 1932-4-1 Sonoma Santa Rosa. Vine Hill. Comment
  UCSB23053  Arctostaphylos densiflora McMinn, Howard 1936-4-5 Sonoma Just west of Vine Hill School, 16 miles west of Santa Rosa Comment
  UCSB12556  Arctostaphylos densiflora Huot, J. 1961-3-25 Sonoma 4 miles east of Healdsburg, along north side of Highway 101 on roadbanks 30 Comment
  CAS-BOT-BC23282  Arctostaphylos glandulosa subsp. cushingiana Alice Eastwood 1918-5-1 6865 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC23286  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1986-3-23 5367 Sonoma On Geysers Road near Mercuryville at junction of private road to Sulphur Peak. 822 Comment
  JEPS98887  Arctostaphylos glandulosa subsp. cushingiana James Roof 1967-3-19 Sonoma W of Healdsburg (Dorman Canyon Road); Dry Creek watershed Comment
  CAS-BOT-BC24721  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5173 Sonoma 7.7 mi. from w. end of Sonoma Lake Bridge on Rockpile Road. Comment
  CAS-BOT-BC24724  Arctostaphylos glandulosa subsp. glandulosa A. A. Heller; H. E. Brown 1902-3-31 5194 Sonoma Mt. Hood. Comment
  JEPS57128  Arctostaphylos glandulosa subsp. glandulosa L. R. Heckard 1967-5-7 1592 Sonoma near summit (w of) peak Hood Peak (nw of Kenwood) 822 Comment
  JEPS79449  Arctostaphylos glandulosa subsp. glandulosa Edward Lee with W. A. Setchell 1936-6-7 2197 Sonoma s ridge Bohemian Grove Comment
  UC1120203  Arctostaphylos glandulosa subsp. glandulosa C. M. Belshaw 1936-3-8 1569 A Sonoma 1 1/2 mi n County Farm; Santa Rosa Quadrangle, Rincon Ridge Comment
  UC535029  Arctostaphylos glandulosa subsp. glandulosa H. F. Copeland 1933-3-18 A 1 Sonoma Spring Mountain Rd about 8 mi e Santa Rosa Comment
  UC727007  Arctostaphylos glandulosa subsp. glandulosa A. A. Heller 1942-3-15 16390 Sonoma ne Santa Rosa (top of ridge); Rincon Ridge Comment
  CAS-BOT-BC24718  Arctostaphylos glandulosa subsp. glandulosa Susan M. Smith 2004-2-9 s.n. Sonoma Scattered over 80 acre native plant preserve. On St. Helena Rd, 3.5 mi' e. of Calistoga Rd. 487 Comment
  CAS-BOT-BC39113  Arctostaphylos hispidula Roger Raiche 1984-2-3 40016 Sonoma Rockpile Road, 9/1 miles north from its intersection and beginning at Skaggs Spring-Stewarts Point Road. 502 Comment
  RSA364261  Arctostaphylos hispidula Roger Raiche 1984-1-14 40016 Sonoma Rockpile Road, 9.1 miles northwest of its intersection and beginning at Stewarts Point- Skaggs Springs Rd. 502 Comment
  RSA339410  Arctostaphylos hispidula Walter Knight, Irja Knight, Stephen W. Edwards 1985-1-27 5172 Sonoma south of Mt. Tom 5.1 miles west on Kelly Road from Rockpile Road junction 609 Comment
  CAS-BOT-BC24404  Arctostaphylos manzanita Walter Knight; Irja Knight; Roger Raiche; Steve Edwards 1983-7-3 4762 Sonoma The Cedars, Twitchell Ranch. 243 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-BC24408  Arctostaphylos manzanita Roger Raiche 1983-7-15 30499 -I Sonoma Along powerline right-of-way near entrance to public landfill site, road to Annapolis, 1.2 mi. e. of intersection of Comment
  JEPS111436  Arctostaphylos manzanita John Gill Lemmon Apr 1888 Sonoma Healdsburg Comment
  LA42192  Arctostaphylos manzanita H. F. Copeland; 1933-3-18 A 1 Sonoma Spring Mountain Road, about 8 mi. E of Santa Rosa Comment
  RSA633060  Arctostaphylos manzanita Jon E. Keeley 1993-9-11 24711 Sonoma Along Calistoga Road, 19 km southwest of Highway 128. 220 Comment
  SEINET11984821  Arctostaphylos manzanita R. Gankin, Hildreth, W. R. 1967-1 1072 Sonoma Vine Hill School Rd, ca 0.5 mi E of Vine Hill Rd Comment
  SEINET11990957  Arctostaphylos manzanita Unknown 1983-1 30585 B Sonoma Layton Mine, Austin Creek, The Cedars Comment
  SEINET11990962  Arctostaphylos manzanita Unknown 1983-1 30499 F Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990969  Arctostaphylos manzanita Unknown 1983-1 30491 A Sonoma near intersection between East Austin Creek & Gray Creek 140 Comment
  SEINET11990980  Arctostaphylos manzanita Unknown 1982-1 20862 Sonoma above Gilliam Creek, East Austin Creek State Rec. Area Comment
  SEINET11990994  Arctostaphylos manzanita R. Raiche, Edwards, S. W. 1983-1 100 Sonoma The Cedars, W of ridge on Twitchell property 274 Comment
  SEINET11993022  Arctostaphylos manzanita W. Knight, Knight, T. 1985-1 5176 Sonoma Lovers' Leap area of John Joost Ranch on Calistoga Road between St. Helena Rd & Porter Creek Rd Comment
  RSA21886  Arctostaphylos manzanita subsp. bakeri Alice Eastwood, John Thomas Howell 1939-4-2 7376 Sonoma Near Camp Meeker on road to Monte Rio Comment
  SEINET11977792  Arctostaphylos manzanita subsp. bakeri C. M. Belshaw 1936-1 1553 Sonoma 1 mi NE of Occidental 37 Comment
  SEINET11991013  Arctostaphylos manzanita subsp. bakeri W. Knight, Knight, I.; Knight, T. 1983-1 4767 Sonoma intersection of Occidental Rd & Fascindini Lane near Occidental Comment
  SEINET11995499  Arctostaphylos manzanita subsp. bakeri Unknown 1986-1 60001 Sonoma NE of Healdsburg, Reservoir Hill 122 Comment
  CAS-BOT-BC38902  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1918-9-3 7939 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38906  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11302 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38950  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1918-9-3 7944 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38677  Arctostaphylos manzanita subsp. manzanita Stephen W. Edwards; Roger Raiche; Walter Knight; Irja Knight 1983-7-3 4751 Sonoma The Cedars, on serpentinite, near Cazadero. 274 Comment
  CAS-BOT-BC38679  Arctostaphylos manzanita subsp. manzanita Steve Edwards; Roger Raiche; Walter Knight; Irja Knight 1983-7-3 4752 Sonoma The Cedars, near Cazadero 274 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
  CAS-BOT-BC38716  Arctostaphylos manzanita subsp. manzanita Lewis S. Rose 1955-2-14 55000 Sonoma Forestville 22 Comment
  POM209630  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 1 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa. Comment
  RSA394834B  Arctostaphylos manzanita subsp. manzanita D. Koutnik, Mary Barbercheck 1981-6-18 394834 Sonoma Austin Creek State Recreation Area about four miles north of Guerneville. 488 Comment
  RSA70859  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 13 Sonoma Vine Hill region on College Avenue Highway, near Santa Rosa. Comment
  UC1281098  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1936-4-5 4410 Sonoma along road just w Vine Hill School House Comment
  UC909869  Arctostaphylos manzanita subsp. manzanita J. E. Adams 1934-3-28 727 Sonoma 4 or 5 mi from Seaview (Cazadero Rd) Comment
  CAS-BOT-BC38678  Arctostaphylos manzanita subsp. manzanita Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4157 Sonoma From Strybing Arboretum, San Francisco, #78-161. Originally from Hood's Peak in Sonoma County. Comment
  CAS-BOT-BC38743  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5171 Sonoma A couple of miles down Kelly Road west of Rockpile road junction. 487 Comment
  UC549423  Arctostaphylos nummularia J. E. Adams 1934-6-9 832 Sonoma near McNamees Store Comment
  RSA13419  Arctostaphylos patula H. F. Copeland 1933-3-18 A- 13 Sonoma Vine Hill region on College Avenue Highway, near Santa Rosa. Comment
  CAS-BOT-BC47345  Arctostaphylos stanfordiana C. Hart Merriam 1925-7-8 s.n. Sonoma Coast Mountains near Kachia Rancheria about 5 mi. e of Stewarts Point. Comment
  HSC7717  Arctostaphylos stanfordiana S. N. Wiemeyer 1962-1-28 4 Sonoma 3/4 mi. E of County Hospital along Chanate Rd. 122 Comment
  SEINET2028696 Image available Arctostaphylos stanfordiana H. F. Copeland 1933-3-18 Sonoma Rincon Ridge, near Santa Rosa Comment
  UC1043525  Arctostaphylos stanfordiana P. C. Everett and E. K. Balls 1954-10-20 20376 Sonoma 4 mi sw from Lake-Sonoma Co. line (nw to w slopes of Mt. St. Helena) 640 Comment
  UC424812  Arctostaphylos stanfordiana Milo S. Baker 1930-2-21 3878 a Sonoma Rincon Ridge Comment
  UCD53848  Arctostaphylos stanfordiana Roman Gankin 1966-3-3 687 Sonoma Ridge south of Hooker Canyon at a point directly opposite canyon from Cavedale Road; 3.1 miles east of junction with State Highway 12. Comment
  UCR279675  Arctostaphylos stanfordiana Ann Howald 2016-1-23 3554 Sonoma North Coast Ranges, Annapolis Ridge, west side Annapolis Rd c. 0.6 mile south of intersection with Soda Springs Rd, just north of transfer station 207 Comment
  SEINET11989085  Arctostaphylos stanfordiana Unknown 1982-1 20301 F Sonoma King Ridge Rd (4.5 mi N of jct Ft Ross Rd) about 0.7 mi in from King Ridge Rd on Old Layton Mine Rd Comment
  UCD53860  Arctostaphylos stanfordiana R. E. Preston 1996-4-22 928 Sonoma 5.7 miles SE of Hopland; on north ridge of Salt Canyon. 609 Comment
  JEPS83499  Arctostaphylos stanfordiana subsp. decumbens Jack and Betty Guggolz 1986-2-22 847 Sonoma Sones-Finley properties Comment
  JEPS95232  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  RSA17680  Arctostaphylos stanfordiana subsp. stanfordiana Elmer I. Applegate 1924-3-25 8858 Sonoma Pine Flat region, west slope of Mayacama Mountains. Comment
  HSC7746  Arctostaphylos viscida S. N. Wiemeyer 1962-1-28 3 Sonoma 3/4 mi. E of County Hospital along Chanate Rd. 122 Comment
  HSC7741  Arctostaphylos viscida P. J. Zinke 1949-6-19 63 Sonoma Divide between Smith and Dry Creek 457 Comment
  UC1193017  Arctostaphylos viscida subsp. pulchella P. Zinke 1949-6-14 62 Sonoma divide between Dry Creek and Smith Creek; Quad 61A3 457 Comment
  SEINET11845326  Arctotheca calendula W. Knight, Knight, I. 1990-1 6588 Sonoma Petaluma, Lynch Creek Drive Comment
  POM165727  Aristolochia californica A. A. Heller, H. E. Brown 1902-3-12 s.n. Sonoma Sonoma Creek, eastern base of Mt. Hood. Comment
  UC1135994  Aristolochia californica H. S. Yates 1934-4-22 3850 Sonoma 3 mi. e. Mark West; Calistoga Quad. Comment
  SD99366  Aristolochia californica Christopher Davidson 1977-6-17 5975 Sonoma Sate Hwy #12, ca. 3 miles west of Guerneville, along Russian River. 14 Comment
Read comments
Mar 18 2012
  UCSB19199  Armeria maritima subsp. californica Jensen, Karen 1965-4-16 Sonoma State Highway 1; 3 km. N of Salmon Creek Bridge; N of Bodega 18 Comment
  RSA0056337  Armeria maritima var. californica Jim Shevock 1971-1-30 627 Sonoma Along HIghway 1. 16 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
  CAS-BOT-BC227670  Arrhenatherum elatius Peter Rubtzoff 1979-8-5 9302 Sonoma Freestone Marsh area; along Bohemian Highway at Freestone Flat Road junction, southeast of Freestone marsh. Comment
  RSA129574  Arrhenatherum elatius H. S. Yates 1937-5-30 6557 Sonoma 1 1/2 miles N of Freestone. Comment
  UC573782  Arrhenatherum elatius H. S. Yates 1937-5-30 6557 Sonoma 1 1/2 mi n of Freeestone 91 Comment
  RSA791570  Artemisia douglasiana Peter Rubtzoff 1973-8-31 7292 Sonoma Upper Green Valley Marsh area. 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-BC400605  Asarum caudatum Peter Rubtzoff 1951-6-17 284 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  UC116648  Asarum caudatum F. T. Bioletti 1892-1 Sonoma Comment
  UC543764  Asarum caudatum Herbert L. Mason 1926-3-21 2778 Sonoma Middleton Road - Mt. St Helena; Lake Co. Comment
  UC1084478  Asclepias fascicularis G. Thomas Robbins 1937-6-18 250 Sonoma College Avenue Santa Rosa Comment
  CAS-BOT-BC222857  Asclepias solanoana Helen K. Sharsmith 1952-6-18 4128 Sonoma Inner North Coast Ranges. Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains 975 Comment
  UC1299580  Asclepias solanoana Freed W. Hoffman 1947-5-30 549 Sonoma Layton Mine; North Coast Ranges, Austin Creek Comment
  UC972154  Asclepias solanoana Helen K. Sharsmith 1952-6-18 4128 Sonoma near Socrates Mine road junction with Pine-Flat-Middletown road; Inner North Coast Ranges, Mayacamas MOuntains 975 Comment
  RSA164631  Aspidotis densa P. C. Everett 1963-11-21 24565 Sonoma Harrison Grade, northeast of Occidental. 76 Comment
  CDA10240  Aster chilensis P. Robinson 1985-8-1 s.n. Sonoma Guerneville, Sweetwater Springs Road. Comment
  UC13335  Astragalus breweri W. H. Brewer 1862-4-18 979 Sonoma Sonoma Valley Comment
  CAS-BOT-BC178663  Astragalus claranus John Thomas Howell 1931-4-19 6431 Sonoma Grassy meadow, 12.5 miles from St. Helena on Spring Mountain Road to Santa Rosa Comment
  UC1614406  Astragalus clevelandii Charles M. Belshaw 1936-9-18 2671 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC186820  Astragalus gambelianus A. A. Heller; H. E. Brown 1902-4-4 5214 Sonoma Hills East of Santa Rosa Comment
  RSA415822  Astragalus gambelianus J. T. Howell 1931-4-19 6433 Sonoma Spring Mountain Road, 7.5 miles from St. Helena. Comment
  CAS-BOT-BC66010  Athyrium filix-femina Greg de Nevers 1996-9-1 10870 Sonoma Ida Clayton Road over Mt. St. Helena 914 Comment
  CAS-BOT-BC66147  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1958-8-23 3911 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano road) Comment
  CAS-BOT-BC66148  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1951-11-24 843 Sonoma Northern half of Lower Marsh Comment
  CAS-BOT-BC66149  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1952-5-31 1119 Sonoma Northern half of Lower Marsh Comment
  CAS-BOT-BC66152  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1962-7-14 4996 Sonoma Lower Salmon Creek Marsh Comment
  CAS-BOT-BC66156  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1951-7-8 411 Sonoma Northern half of Lower Marsh Comment
  UC1299654  Athysanus pusillus Freed Hoffman 1947-2-28 610 Sonoma near. headwaters of Gilliam Creek Guerneville; North Coast Ranges, Gilliam Creek Comment
  CAS-BOT-BC290670  Atriplex Peter Rubtzoff 1958-9-6 3974 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  UCSC000219  Atriplex prostrata E. L. Greene 1888-9-1 s.n. Sonoma Petaluma Comment
  UC7080  Atriplex triangularis Edw. L. Greene 1888-9-1 Sonoma Petaluma Comment
  CAS-BOT-BC146136  Avena barbata A. A. Heller 1902-3-26 5157 Sonoma Santa Rosa Creek. Comment
  UCR152108  Avena barbata Beecher Crampton 1955-3-15 2326 Sonoma Town of Asti Comment
  CAS-BOT-BC145730  Avena sativa John Thomas Howell; Walter Knight; Irja Knight 1987-5-20 6238 Sonoma East Cotati Avenue, near Sonoma State University. Comment
  CAS-BOT-BC154150  Baccharis douglasii Peter Rubtzoff 1974-8-4 7798 Sonoma Upper Green Valley Marsh Comment
  RSA783716  Baccharis douglasii Peter Rubtzoff 1955-9-24 2147 Sonoma Duncan Mills Marsh 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
  HSC5131  Baccharis salicifolia P. J. Zinke 1950-4-25 117 Sonoma 2 miles S. of Cloverdale 152 Comment
  CDA18777  Barbarea orthoceras Boris Korotyaev 2000-3-26 s.n. Sonoma Northern California; Coleman Valley Rd. 4 km. W of Occidental. 0 Comment
  UC573779  Beckmannia syzigachne H. S. Yates 1937-6-5 6576 Sonoma near Wildwood; Santa Rosa Quadrangle 121 Comment
  UCD56805  Beckmannia syzigachne Lloyd M. Harwood 1972-5-25 s.n. Sonoma Near Petaluma. Comment
  UCD129544  Bellis perennis Mary M. Hektner 1975-4-29 189 Sonoma Sea Ranch, near State Highway 1. Comment
  UC72742  Berberis nervosa Milo S. Baker 1898-4-5 761 Sonoma near Stewart's Point Comment
  RSA227207  Berula erecta Peter Rubtzoff 1955-7-24 1986 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC290723  Bidens frondosa Peter Rubtzoff 1960-9-14 4528 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads. 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
  JEPS86324  Blennosperma bakeri Jack and Betty Guggolz 1988-2-18 900 Sonoma Kovatch property Comment
  SD51682  Blennosperma bakeri M. S. Baker 1946-4-2 11307 Sonoma Western outskirts of Sonoma in hog wallow about 0.25 mile south of Napa Street, in field on east side of street. Comment
  SEINET3074489  Blennosperma bakeri M. S. Baker 1946-1 Sonoma Comment
  UC725276 Image available Blennosperma bakeri Milo S. Baker 1946-4-2 11307 Sonoma ca 0.25 mi s Napa Street (in field on e side of street, Hog Wallow w outskirts of Sonoma); Sonoma, Hog Wallow; near Sonoma, Sonoma Co. Comment
  CDA10525  Blennosperma bakeri T. C. Fuller 1977-4-21 20200 Sonoma North of the fence of the Church of Christ, 1825 Fulton Road, 0.5 km south of Piner Road, Santa Rosa. 0 Comment
  UC727776  Blennosperma nanum var. nanum Milo S. Baker 1946-4-21 11335 Sonoma near, along S.R.-Sonoma Hiwy. Old Dunbar School Comment
  CAS-BOT-BC105960  Blennosperma nanum var. nanum Milo S. Baker 1946-4-21 11355 Sonoma Santa Rosa - Sonma Hwy near old Dunbar School house Comment
  UC337456  Blennosperma nanum var. nanum J. G. Lemmon 1888-3-1 Sonoma Warner's Ranch, Healdsburg Comment
  CAS-BOT-BC154963  Boisduvalia Peter Rubtzoff; Nancy Harrison; Ruth Hass 1974-8-31 7850 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC154956  Boisduvalia Peter Rubtzoff 1971-7-23 6613 Sonoma Laguna, Chileno Valley Comment
  CAS-BOT-BC166653  Boisduvalia densiflora Peter Rubtzoff 1959-9-13 4266 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  SEINET12194245  Boisduvalia densiflora W. Knigh, Knight, I. 1984-1 5235 Sonoma 5.9 mi up Cavedale Rd Comment
  CAS-BOT-BC28224  Bolboschoenus fluviatilis Peter Rubtzoff 1958-5-11 3656 Sonoma Laguna de Santa Rosa NE of Graton, nr. Guerneville Road. Comment
  CAS-BOT-BC290549  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1963-8-17 5221 Sonoma Salt marsh near Petaluma River just east of Petaluma. Comment
  SEINET11749892  Bolboschoenus robustus W. Knight, Knight, I. 1984-1 5083 Sonoma Gilardis Resort near Lakeville on Petaluma River 3 Comment
  UC20849  Bowlesia incana Bolander 1866-4-11 4633 Sonoma Petaluma Comment
Read comments
Mar 13 2009
  CAS-BOT-BC418503  Boykinia occidentalis Mrs. C. A. Burlingame 1921-6-28 s.n. Sonoma Sonoma Comment
  CAS-BOT-BC145444  Brachypodium distachyon G. DeNevers 1981-5-15 1188 Sonoma Pepperwood Ranch. On the ridge above Hansel's Lake, in a roadcut. Comment
  UCD57082  Brachypodium distachyon G. Douglas Barbe 1984-6-13 4172 Sonoma On Willow Creek Road between Bridge Haven (Highway 1) and Coleman Valley Road. West of Occidental. Comment
  CAS-BOT-BC100477  Brickellia californica Walter Knight; Irja Knight 1963-9-15 292 Sonoma Los Alamos Rd., Santa Rosa Comment
  CAS-BOT-BC145484  Briza maxima Roxana S. Ferris; Laura Lorraine 1961-6-14 13530 Sonoma Junction of Bittner Road with Joy Road between Occidental and Bodega. Comment
  RSA239698  Briza maxima Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1096 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  UC565401  Briza maxima G. Thomas Robbins 1937-6-5 223 Sonoma about 10 mi w Santa Rosa; Vine Hill region, Pitkin Ranch Comment
  UCD57168  Briza maxima Roxana S. Ferris; Laura Lorraine 1961-6-14 13530 Sonoma Junction of Bittner Rd. with Joy Rd. between Occidental and Bodega. Comment
  UCSC000040  Briza maxima H. S. Yates 1936-5-16 5606 Sonoma 2 miles SE o fForestville - Sebastopol 30 Comment
  UCD57140  Briza maxima Collector unknown 1941-5-1 Sonoma Montacello Ave. Santa Rosa? Comment
  CAS-BOT-BC145282  Briza minor Peter Rubtzoff 1955-5-21 1864 Sonoma Forestville Marsh. Bordering the marsh in teh south. Comment
  CAS-BOT-BC145292  Briza minor G. DeNevers 1981-6-20 1639 Sonoma Pepperwood Ranch. Northeast of Peperwood, on the east road to Knights Valley at a pond filling with silt. Comment
  POM205306  Briza minor A. S. Hitchcock 1902-6-7 5649 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  UCD57393  Briza minor Mary M. Kektner; Cathy Hendel and Sue Dakuzaku 1974-6-19 028 Sonoma Unit 24 Owners' Map. Sea Ranch. Near State Highway 1. Comment
  CAS-BOT-BC140074  Brodiaea californica var. leptandra Roger Raiche 1985-6-22 RR 50553 Sonoma West side of Dry Cr Valley and west of town site of Dry Creek, unnamed ridge north of Crane Cr and south of Bradford Mt. 161 Comment
  UC843568  Brodiaea elegans subsp. elegans Lewis S. Rose 1940-5-22 40363 Sonoma Sonoma 30 Comment
  CAS-BOT-BC486537  Brodiaea elegans subsp. elegans D. E. Breedlove 1980-6-28 44804 Sonoma Pepperwood Ranch west of Knights Valley Comment
  UC463107  Brodiaea leptandra Milo S. Baker June 1925 2346 Sonoma canyon above Kenwood Springs Comment
  UCD163100  Brodiaea stellaris Robert E. Preston 2014-5-17 2963 Sonoma 4.5 mi NNW of Cazadero. 190 Comment
  SEINET207371  Brodiaea stellaris Rimo Bacigalupi, G. T. Robbins; F. Hoffmann 1956-5-31 5675 Sonoma Along secondary road following Big Austin Creek at base of 'The Butcher Knife 183 Comment
  UC353798  Brodiaea terrestris subsp. terrestris Milo S. Baker 1928-4-28 3002 b Sonoma Pitkin Swamp Comment
  CAS-BOT-BC486457  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1971-6-5 6507 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. 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
  CAS-BOT-BC487727  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1962-6-13 4907 Sonoma Freestone Marsh Comment
  CAS-BOT-BC311812  Bromus Peter Rubtzoff 1964-6-24 5376 Sonoma Coleman Marsh. Comment
  CAS-BOT-BC328121  Bromus Peter Rubtzoff 1964-5-31 5331 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg, along Russian River. Comment
  UCD58257  Bromus carinatus Collector unknown 1941-3-1 Sonoma S. R. J. C. Santa Rosa. Comment
  SEINET943634  Bromus carinatus var. carinatus Lewis S. Rose 1962-1 62024 Sonoma 1 mile NW of Freestone 76 Comment
  UC1155624  Bromus carinatus var. carinatus G. L. Stebbins Jr. 1942-5-12 3232 Sonoma Sebastopol Comment
  UC577602  Bromus carinatus var. carinatus H. S. Yates 1934-6-21 Sonoma near Bodega 60 Comment
  CAS-BOT-BC148786  Bromus carinatus var. marginatus G. DeNevers 1981-6-6 1498 Sonoma Pepperwood Ranch. South slope of Telegraph Hill. Comment
  UCD160977  Bromus carinatus var. marginatus James A. Neilson Jr. 1975-7-8 3305 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  CAS-BOT-BC156276  Bromus catharticus Catherine Best 1982-6-30 s.n. Sonoma At Bodega Bay. Comment
  CAS-BOT-BC155851  Bromus catharticus var. elatus Peter Rubtzoff 1962-5-5 4804 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC155957  Bromus commutatus Peter Rubtzoff 1959-5-30 4071 Sonoma Freestone Marsh. Comment
  UC1534066  Bromus diandrus Carol Conner 1980-3-12 21 Sonoma 2 mi s of Glen Ellen (and 1/2 mi ne of Josephine Lake) 91 Comment
  CAS-BOT-BC155665  Bromus diandrus Peter Rubtzoff 1952-5-10 1021 Sonoma Pitkin Marsh near Forestville. Bordering the Upper Marsh in the east. Comment
  UC730043  Bromus hordeaceus Leo F. Koch 1940-4-22 831 Sonoma 2 mi from Jimtown (Alexander Valley Road to Geysers); Alexander Valley Road Comment
  UCD58688  Bromus hordeaceus Beecher Crampton 1957-7-11 4338 Sonoma Bluffs just south of Portuguese Beach. Sonoma Coast State Park. 2.5 miles north of Salmon Creek. Comment
  SEINET11690157  Bromus hordeaceus W. Knight, Knight, I.; Howell, J. T. 1987-1 6275 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC162394  Bromus laevipes Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road 15 miles west of Highway 101. Comment
  RSA126882  Bromus laevipes H. S. Yates 1937-5-30 6543 Sonoma Three miles northwest of Graton. 61 Comment
  UC1146638  Bromus laevipes Freed W. Hoffman 1941-6-20 2102 Sonoma near Camp Meeker (North Coast Ranges, Oregon Canyon); North Coast Ranges, Oregon Canyon Comment
  UCD58936  Bromus laevipes B. Crampton 1955-6-17 2977 Sonoma 2.4 miles south of Monte Rio. Comment
  UCD58929  Bromus laevipes Beecher Crampton 1953-5-19 1296 Sonoma 10 miles west of Calistoga. Hwy. 128. Comment
  SEINET10524463  Bromus marginatus A. Arthur Heller 1902-4-9 Heller 5247 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  CAS-BOT-BC161700  Bromus rubens Mary P. Wells 1984-5-24 306 Sonoma Annadel State Park southeast of Santa Rosa. Comment
  UCD151081  Bromus vulgaris James A. Neilson Jr. 1974-6-1 3022 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area, ca. 3 1/2 mi. west of Whispering Pines, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  SD38261  Cakile edentula var. edentula Edith A. Purer 1932-7-21 4040 Sonoma Bodega Bay Comment
  CAS-BOT-BC352235  Calamagrostis neglecta var. inexpansa Peter Rubtzoff 1966-5-29 5741 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC185122  Calamagrostis nutkaensis Mary P. Wells 1983-8-3 160 Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch. Comment
  UCD57507  Calamagrostis nutkaensis Virginia Bufford 1936-5-22 409 Sonoma Hwy. 1, 9 miles south of Stewarts Point. Comment
  CAS-BOT-BC185131  Calamagrostis nutkaensis Mary P. Wells 1982-8-21 128 Sonoma South Gerstle Cove, Salt Point State Park. Comment
  JEPS128372  Calamagrostis ophitidis Roger Raiche 1999-6-20 016 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  OBI22358  Calamagrostis ophitidis Robert F. Hoover 1965-6-29 9475 Sonoma N of summit on Harrison Grade rd near Occidental Comment
  UCD57533  Calamagrostis ophitidis Freed W. Hoffman 1941-6-1 2185 Sonoma North Coast Ranges, Oregon Canyon. Comment
  RSA0065200  Calamagrostis rubescens Greg de Nevers 1997-6-7 11019 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On the Oak Hill Ranch burned area. 100 Comment
  CAS-BOT-BC438606  Calandrinia ciliata Peter Rubtzoff 1952-5-10 1026 Sonoma Pitkin Marsh, near Forestville. Bordering the Upper Marsh in the west. Comment
  CAS-BOT-BC438614  Calandrinia ciliata G. H. Mallory 1920-3-29 s.n. Sonoma East end of Sonoma Ave., Santa Rosa. Comment
  UC727779  Calendula arvensis Milo S. Baker 1946-4-2 11306 Sonoma a mi or so s of El Verano (along overflow channel just w of Sonoma Cr.) Comment
  RSA99617  Calendula arvensis J. T. Howell 1954-4-1 29138 Sonoma Just east of Shellville. Comment
  CAS-BOT-BC290610  Callitriche Peter Rubtzoff 1972-6-11 6776 Sonoma Laguna, Chileno Valley Comment
  UC1134511  Calochortus amabilis H. S. Yates 1934-4-22 3859 Sonoma 3 mi sw Petrified Forest; Calistoga Quad. 182 Comment
  UC157875  Calochortus amabilis Milo S. Baker May 1899 Sonoma Stewarts Canyon Comment
  UC400140  Calochortus amabilis Ynes Mexia 1929-6-2 2393 Sonoma near Mark West Springs Comment
  UCD139486  Calochortus amabilis C. Wistrom 1996-5-26 23 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  CAS-BOT-BC483273  Calochortus amabilis James L. Reveal 1988-6-1 6972 Sonoma Along Geysers Road, 9.2 miles east-southeawst of U.S. Highway 101, 1 mile southeast of West Squaw Creek Road and 4.2 miles northwest of the turnoff to Geysers Resort, about 13 miles east of Cloverdale 320 Comment
  CAS-BOT-BC483283  Calochortus amabilis Roxana S. Ferris; Laura Lorraine 1961-6-15 13551 Sonoma Harrison Grade Road, 0.3 mile from junction with Green Valley Road 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-BC488475  Calochortus amabilis H. N. Bolander No date on label 6247 Sonoma Anderson Valley Comment
  SEINET12049777  Calochortus amabilis F. H. Utech 1986-1 86 -106 Sonoma ca 3 mi NE on Cavedale Road from junction with CA 12 250 Comment
  CAS-BOT-BC492641  Calochortus luteus Volney Rattan 1885-5-9 s.n. Sonoma Sonoma Creek Comment
  CAS-BOT-BC494025  Calochortus tolmiei Wayne Roderick 1967-5-15 s.n. Sonoma 1 mile n. of Fort Ross 22 Comment
  UC1876265  Calycadenia fremontii Gerald D. Carr 1972-9-11 731 Sonoma 1.0 mi W of Westside Rd. on Mill Creek Rd., 2.5 mi SW of Healdsburg. 106 Comment
  UC331107  Calycadenia multiglandulosa unknown 1877-5-1 309 Sonoma Knights Valley Comment
  UC894254  Calycadenia multiglandulosa Milo S. Baker 1931-7-9 5344 Sonoma s of The Petrified Forest Comment
  CAS-BOT-BC270844  Calycadenia pauciflora Gerald D. Carr 1972-3-20 687 Sonoma 1.0 mile W of Westside Road on Mill Creek Road, 2.5 miles SW of Healdsburg 106 Comment
  CDA11977  Calycadenia truncata G. F. Hrusa, T. D. Wilfred 1995-12-3 12482 Sonoma North Coast Biodiversity Arena; Immed. below W base of Chalk Mtn. Foote Ranch, NW base of Mt. St. Helena. Comment
  UCD129978  Calycadenia truncata G. F. Hrusa; T. D. Wilfred 1995-12-3 12482 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Immediately below west base of Chalk Mountain. 500 Comment
  UCR256115  Calycadenia truncata Greg de Nevers 1997-7-29 11072 Sonoma North Coast Range, near Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC272758  Calycadenia truncata subsp. truncata F. G. Krauss 1893-10-4 s.n. Sonoma 5 miles west of Calistoga Comment
  CAS-BOT-BC272759  Calycadenia truncata subsp. truncata Milo S. Baker 1932-10-9 6044 Sonoma Above Kenwood Sprg. South side of canyon Comment
  CAS-BOT-BC91002  Calycanthus occidentalis D. E. Breedlove 1962-6-6 2905 Sonoma On State Highway 128, 4.0 miles northwest of U.S. Highway 101 at Cloverdale. 289 Comment
  CAS-BOT-BC91006  Calycanthus occidentalis Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  RSA271933  Calycanthus occidentalis Christopher Davidson 1977-6-17 5883 Sonoma State Hwy 12, ca. 3 mi. W of Guerneville. Along Russian River. 15 Comment
  UC34864  Calycanthus occidentalis W. C. Blasdale 1894-5-10 Sonoma Guerneville Comment
  UC635500  Calycanthus occidentalis H. L. Mason 1934-4-28 8067 Sonoma head of Dohrman Creek Dohrman Creek (Jensen Ranch) Comment
  UCSB15842  Calycanthus occidentalis 1962-6-6 Sonoma State Highway 128, 4.0 miles northwest of U.S. Highway 101 at Cloverdale 289 Comment
  CAS-BOT-BC292508  Calystegia R. K. Brummitt; T. F. Daniel 1997-5-31 19615 Sonoma 10 km NE of Santa Rosa, Pepperwood Ranch Natural Preserve, near Bechtel Cabin. 300 Comment
  CAS-BOT-BC292509  Calystegia R. K. Brummitt; T. F. Daniel 1997-5-31 19617 Sonoma 10 km NE of Santa Rosa, Pepperwood Ranch Natural Preserve, 2 km N of Bechtel Cabin. 300 Comment
  UC1794971  Calystegia R. K. Brummitt and T. F. Daniel 1997-5-31 19615 Sonoma 10 km NE of Santa Rosa, Pepperwood Ranch Natural Preserve, near of Bechtel Cabin. Comment
  RSA710255  Calystegia collina R. K. Brummitt 1998-5-15 19860 Sonoma 17 km NNE of Healdsburg, on Pine Flat Road near Red Hill. 198 Comment
  RSA394815  Calystegia purpurata J. Russell Bruff 1968-5-1 s.n. Sonoma Bodega Bay. Comment
  CAS-BOT-BC224741  Calystegia purpurata subsp. saxicola John Thomas Howell 1930-6-8 5290 Sonoma 8.5 miles n. of Bodega Bay 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
  UC1134551  Camassia quamash E. Armstrong 1934-4-22 1196 Sonoma 1 mi ne of Occidental 91 Comment
  UCD166111  Camissonia Peter Rubtzoff 1972-4-23 6739 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC266420  Campanula californica Herbert L. Mason 1946-7-4 12894 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  HSC86665  Campanula californica R. W. Becking 1988-8-12 Sonoma Seaside Estate Meadow area W of Hwy. 1 Comment
  SEINET10905925  Campanula prenanthoides P. Rubtzoff 1951-8-25 Rubtzoff 667 Sonoma Forested hills southeast of Guerneville Comment
  SEINET10905928  Campanula prenanthoides Rattan 1877-6-25 RATTAN s.n. Sonoma CLOVERDALE Comment
  CAS-BOT-BC183626  Capsella bursa-pastoris Peter Rubtzoff 1958-8-9 3841 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road) Comment
  HSC6632  Capsella bursa-pastoris C. S. Chavez 1965-6-3 79 Sonoma 1 mi. E of Forestville on Hwy. 116 Comment
  HSC6633  Capsella bursa-pastoris S. N. Wiemeyer 1962-4-20 28 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  CAS-BOT-BC37753  Cardamine californica R. H. Thompson 1880-4-1 s.n. Sonoma Near Healdsburg. Comment
  JEPS128330  Cardamine pachystigma var. dissectifolia Roger Raiche 2010-4-17 016 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  OBI63072  Carduus pycnocephalus R. K. Brummitt, A. Wolf, & R. W. Howe, R. W. Howe 1998-5-15 19862 Sonoma 17 km NNE of Healdsburg, on Pine Flat rd near Red Hill 650 Comment
  UCD85586  Carduus pycnocephalus Gerry North 1993-4 43 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. South of Hillside trail, at fork by water tank. 426 Comment
  CAS-BOT-BC281768  Carduus pycnocephalus Peter Rubtzoff 1951-7-21 480 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh, near the highway Comment
  CAS-BOT-BC281769  Carduus pycnocephalus F. H. Utech; Walter & Irja Knight 1986-5-15 86 -160 Sonoma The Geysers, ca 14.0 miles ESE of Preston and US Highway 101 on Geysers Rd 120 Comment
  SEINET10799431  Carduus pycnocephalus David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-9 Dunn 20709 Sonoma Coll. 5.3 mi. E of the Jc t. of Hwy. 101 and Hwy. 116 on 116. Rolling hills of grasses. Along the roadside in clay banks. Comment
  UCD159445  Carduus pycnocephalus subsp. pycnocephalus D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 202 Sonoma Near Sonoma state beach hiking trail. Abundant. 40 Comment
  CAS-BOT-BC173806  Carex Peter Rubtzoff; Nancy Harrison 1978-5-20 9184 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  UCR254740  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC334518  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC334519  Carex abrupta Peter Rubtzoff 1954-6-19 1494 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC344831  Carex abrupta Peter Rubtzoff 1963-8-17 s.n. Sonoma Russian River Mouth Marsh. Comment
  JEPS117069  Carex albida Peter Warner 2008-5-22 92 Sonoma Lower Pitkin Marsh, 1 mi SE of Forestville, on Sonoma Land Trust parcel, S of primary stream channel 44 Comment
  UCD140074  Carex amplifolia Frederica Bowcutt 1994-7-5 1934 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 30 feet, 70 ft. S of campfire center along N edge of Sonoma Creek, N and E of campground, just N of bridge to campfire center. 381 Comment
  CAS-BOT-BC18137  Carex athrostachya Peter Rubtzoff 1954-7-4 1530 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC18138  Carex athrostachya Peter Rubtzoff 1954-7-4 1532 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC18139  Carex athrostachya Peter Rubtzoff 1957-5-26 3361 Sonoma Occidental Marsh. Comment
  CDA13128  Carex athrostachya G. F. Hrusa, R. Gross 1996-6-3 13063 Sonoma North Coast Biodiversity Arena; W end of Diamond Mtn. Rd. Lower of two pools, approx 150 meters apart. 2 m. SW of Calistoga. Comment
  UCR208538  Carex athrostachya Peter Rubtzoff 1960-5-29 4426 Sonoma Laguna de Santa Rosa near Trenton [Rd.], south of Woolsey Road Comment
  CAS-BOT-BC422353  Carex barbarae Peter Rubtzoff 1958-5-10 3637 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  RSA122799  Carex barbarae H. S. Yates 1936-5-16 5584 Sonoma 1 mile northeast of Graton. 30 Comment
  UCR137670  Carex barbarae 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
  UCR248934  Carex barbarae Peter Rubtzoff 1976-5-30 8577 Sonoma North Coast Range, Kenwood Marsh 120 Comment
  CAS-BOT-BC19365  Carex barbarae Catherine Best 1981-5-17 s.n. Sonoma About 2 miles East of Sonoma. Near the intersection of Lovall Valley Road and Wood Valley Road. Comment
  CAS-BOT-BC19371  Carex barbarae G. DeNevers 1981-3-14 528 A Sonoma Pepperwood Ranch. Pippindale farm, 7 miles NE of Santa Rosa, near Mark West lodge. In Leslie Creek. In Mark West Creek. Comment
  CAS-BOT-BC329312  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncans Mills Marsh. Comment
  JEPS117110  Carex bolanderi Peter Warner 2010-7-8 171 Sonoma Jenner Headlands, along main road across property, ~ 4.1 km, W 322 deg. N of Duncans Mills Comment
  SEINET7552671 Image available Carex brevicaulis John Thomas Howell 1955-6-2 30258 Sonoma Near Vine Hill school Comment
  UCR248870  Carex cusickii Peter Rubtzoff 1955-5-14 1839 Sonoma Forestville Marsh 71 Comment
  CAS-BOT-BC20240  Carex densa Peter Rubtzoff 1975-7-3 8150 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC20485  Carex densa Peter Rubtzoff 1952-5-31 1122 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC20501  Carex densa Peter Rubtzoff 1974-6-2 7509 Sonoma Sonoma County Marshes. Upper Green Valley Marsh. Comment
  CAS-BOT-BC20509  Carex densa Peter Rubtzoff 1957-5-11 3329 Sonoma Sonoma County Marshes. Occidental Marsh. Comment
  CAS-BOT-BC242641  Carex densa Peter Rubtzoff 1959-4-18 4033 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 0.5 mi. north of Guerneville Road crossing Comment
  JEPS73338  Carex densa Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 756 Sonoma 1 mi W of Two Rock junction Comment
  UC934  Carex densa H. N. Bolander Apr 1864 3871 Sonoma Russian River Comment
  CAS-BOT-BC20504  Carex densa Peter Rubtzoff 1958-7-19 3776 Sonoma Sonoma County Marshes. Laguna de Santa Rosa east of Sebastapol. Comment
  CAS-BOT-BC20507  Carex densa Peter Rubtzoff 1958-4-26 3604 Sonoma Sonoma County Marshes. Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC20508  Carex densa Peter Rubtzoff 1958-4-26 3603 Sonoma Sonoma County Marshes. Laguna de Santa Rosa east of Sebastopol. Comment
  UC70636  Carex deweyana subsp. leptopoda Jos. Burtt Davy 1896-7-24 Sonoma Duncan's Mill Comment
  RSA758137  Carex dudleyi Peter Rubtzoff 1975-7-3 8148 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC290571  Carex echinata subsp. phyllomanica Peter Rubtzoff; Bacigalupi; Chuang; Heckard 1971-6-10 6536 Sonoma Pitkin Marsh Comment
  RSA0031406  Carex exsiccata Peter Rubtzoff 1955-6-26 1906 Sonoma Duncans Mills Marsh, lower portion of the marsh. Comment
  CAS-BOT-BC19951  Carex exsiccata John Thomas Howell 1946-8-17 22858 Sonoma The Laguna north of Sebastopol. Comment
  CAS-BOT-BC290552  Carex exsiccata Peter Rubtzoff 1958-5-3 3617 Sonoma Atascadero Creek Marsh. Comment
  RSA0037207  Carex exsiccata Peter Rubtzoff 1954-7-4 1535 Sonoma Duncans Mills Marsh, upper portion of the marsh. Comment
  CAS-BOT-BC20443  Carex globosa 1895-5-30 s.n. Sonoma Cazadero. Comment
  SEINET10706382  Carex glomerata Henry N. Bolander Bolander 3824 Sonoma In meadow at Cloverdale. Comment
  CAS-BOT-BC146614  Carex gynodynama A. A. Heller 1903-4-23 6605 Sonoma Fort Ross Comment
  CAS-BOT-BC419697  Carex gynodynama Peter Rubtzoff 1959-5-31 4085 Sonoma Freestone Marsh. Comment
  RSA0022421  Carex gynodynama Peter Rubtzoff 1964-5-20 5317 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC249298  Carex harfordii Peter Rubtzoff 1960-5-16 4350 Sonoma Duncan Mills Marsh Comment
  UCR248967  Carex hassei Peter Rubtzoff 1963-7-6 5194 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) 31 Comment
  NY11188  Carex lacunarum A. A. Heller 1902-7-1 5797 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC31180  Carex lemmonii Peter Rubtzoff 1951-7-21 496 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh. Comment
  UCR252542  Carex leptopoda Peter Rubtzoff 1960-5-16 4359 Sonoma Duncan Mills Marsh 2 Comment
  CAS-BOT-BC119733  Carex nebrascensis John Thomas Howell 1946-8-17 22864 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC422366  Carex nudata Peter Rubtzoff 1962-5-6 4811 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  SJSU8870  Carex obnupta C. W. Sharsmith 1972-6-24 7804 Sonoma Pitkin Marsh c. 1.5 mi SE of Forestville N of Sebastopol 48 Comment
  UCD150841  Carex obnupta Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  UCR208530  Carex ovalis Peter Rubtzoff 1958-5-10 3638 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  JEPS100609  Carex serratodens Dean W. Taylor 1994-5-4 14207 Sonoma ca. 2 mi SW of Occidental; at junction of Bittner Road and Joy Road, 249 Comment
  CAS-BOT-BC117671  Carex serratodens Ella D. Cantelow 1938-5-15 2405 Sonoma 5.2 mi S of the Geyers. Comment
  RSA0000226  Carex sonomensis J. T. Howell, J. W. Stacey 1937-6-6 13042 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC117341  Carex stipata Peter Rubtzoff 1951-6-7 143 Sonoma Pitkin marsh, near Forestville. Branch of the Upper marsh. Comment
  RSA796406  Carex stipata Peter Rubtzoff, Nancy Harrison 1978-5-20 9178 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC116931  Carex subbracteata Peter Rubtzoff 1957-5-11 3330 Sonoma Occidental Marsh. Comment
  RSA0022361  Carex subbracteata Peter Rubtzoff 1962-6-1 4868 Sonoma Freestone Marsh. Comment
  UC1278013  Carthamus lanatus B. Crampton 1957-7-22 4356 Sonoma 15.2 mi w of, on road to Stewart's Point Skagg's Springs Comment
  CDA6966  Carthamus lanatus T. C. Fuller 1970-5-4 19487 Sonoma East of Monte Vista Lane, south side of Petaluma-Valley Ford Road, 4.2 miles west of Petaluma. 0 Comment
  RSA234562  Carthamus lanatus Peter Rubtzoff 1960-7-5 6110 Sonoma Ca. 6 mo. northeast of Penngrove, on Lichan Road Comment
  UC353895  Castilleja affinis subsp. affinis Milo S. Baker 1927-5-7 2125 a Sonoma Fitzsimmons Grade to Adobe Canyon Comment
  JEPS128327  Castilleja attenuata Roger Raiche 2000-5-4 073 .00 Sonoma The Cedars. Lower Russian River, Big Austin watershed. 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
  JEPS9415  Castilleja densiflora subsp. densiflora W. L. Jepson 1911-4-30 4187 Sonoma Sonoma Valley 83 Comment
  UC27170  Castilleja densiflora subsp. densiflora Harley P. Chandler 1900-5-25 706 Sonoma Bodega Bay Comment
  SEINET12331446  Castilleja foliolosa F. H. Utech 1986-1 86 -104 Sonoma ca 3 mi NE on Cavedale Road from junction with CA 12 250 Comment
  UCD122482  Castilleja foliolosa Frederica Bowcutt 1996-5-24 2168 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 W of kiosk. 670 Comment
  RSA518685  Castilleja franciscana T. I. Chuang, F. M. Chuang 1969-6-29 6690 Sonoma On south side of Russian River on Highway 1. Comment
  SD131915  Castilleja franciscana L. R. Heckard 1964-6-12 1384 Sonoma On SE facing slope back from the ocean in Russian Gulchnear point where highway loops backwestward (about 2I(c) miles N of mouth of Russian River) 91 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
  SD38268  Castilleja latifolia Edith A. Purer 1932-7-21 4055 Sonoma Bodega bay, sandy bluff Comment
  CAS-BOT-BC243853  Castilleja latifolia Ella Dales Cantelow 1939-4-10 2605 Sonoma About 1.6 mi. S of Russian River Bridge Comment
  JEPS3672  Castilleja subinclusa subsp. franciscana C. R. Bell 1951-4-29 1103 Sonoma near Bodega; Larkspur Rock Comment
  JEPS60455  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-29 6693 Sonoma 3.9 mi n Jenner (on Highway 1) Comment
  UC1341744  Castilleja wightii Noel H. Holmgren and James L. Reveal 1966-6-6 2649 Sonoma 3.5 mi n Bodega Bay (Calif Hwy 1, Coleman Beach); Sonoma Coast, Coleman Beach Comment
  RSA133101  Castilleja wightii Peter H. Raven, Richard Snow 1958-7-23 13688 Sonoma 2.6 miles north of Jenner. Comment
  CAS-BOT-BC39436  Caulanthus lasiophyllus John Thomas Howell 1930-6-8 5283 Sonoma 8.5 miles north of the Bodega Bay. Overlooking the ocean. Comment
  CAS-BOT-BC47800  Ceanothus John Thomas Howell 1937-4-11 12899 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC48521  Ceanothus confusus J. Clausen 1933-3-26 735 Sonoma Rincon Range east of Santa Rosa Comment
  CAS-BOT-BC48524  Ceanothus confusus Walter Knight; Cliff Schmidt 1987-2-27 6059 Sonoma Bradford Mt. Road near Dorman Canyon, west of Healdsburg Comment
  JEPS81592  Ceanothus confusus R. Raiche and K. Zadnik 1982-3-27 20251 Sonoma NW of Hood Mountain (Rincon Ridge) Comment
  RSA21892  Ceanothus confusus J. T. Howell 1935-5-5 12620 Sonoma 6 miles from Santa Rosa on road to Sonoma. Comment
  UC18316  Ceanothus confusus F. T. Bioletti 1892-1 Sonoma Comment
  OBI10271  Ceanothus confusus H. E. McMinn 1944-11-5 5451 Sonoma From Olive orchard, Rincon Ridge Comment
  UCD111373  Ceanothus confusus Roger Raiche 1985-11-28 RR 50897 Sonoma W of Cloverdale, Red Mt. between Hot Springs Road and Cherry Creek Road. 377 Comment
  CAS-BOT-BC49151  Ceanothus cuneatus John Thomas Howell 1931-3-14 5766 Sonoma River Ridge near Santa Rosa Comment
  RSA339398  Ceanothus cuneatus Roger Raiche 1985-4-6 50182 Sonoma Dry Creek area near Healdsburg, ridge W of Dry Creek Valley, unamed road N of Dorman Canyon on ridge. 244 Comment
  UC580708  Ceanothus cuneatus var. cuneatus C. M. Belshaw 1936-3-8 1583 Sonoma .75 mi n. Annadel; Santa Rosa quad. 144 Comment
  SBBG119966  Ceanothus divergens A. Howald 2007-4-2 2458 Sonoma Peirson Rd, ca. 0.6 km NW of confluence of Bear and Sonoma crks; Sugarloaf Ridge State Park 275 Comment
  RSA177972  Ceanothus divergens subsp. confusus Robert F. Thorne 1965-4-20 34348 Sonoma Top of Parker Hill (N end of Parker Hill Rd.) ca. 3 mi. No. of Santa Rosa. 244 Comment
  UC1070622  Ceanothus foliosus A. E. Wieslander 1938-10-29 860 Sonoma 3 mi e Mt. St. Helena; Calistoga quad. 457 Comment
  UC1614284  Ceanothus foliosus Charles M. Belshaw 1936-3-7 1569 A Sonoma just east of Trenton (turn off to Vine Hill School); Forest Hill Road Comment
  SEINET13945879 Image available Ceanothus foliosus A. E. Wieslander 1938-1 860 Sonoma 3 miles E of Mt. St. Helena, T9N R7W. Alt 1500 ft Comment
  JEPS128180  Ceanothus foliosus var. foliosus Roger Raiche 2001-5-17 021 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  UCD112131  Ceanothus foliosus var. vineatus Roman Gankin; W. R. Hildreth 1967-10-3 1071 Sonoma Vine Hill School Road, 1/2 mile east of Vine Hill Road. Comment
  SD42465  Ceanothus gloriosus var. exaltatus Carl B. Wolf 1941-7-30 11108 Sonoma Along coast, 8I(c) mi. S. Stewarts Poimt at entrance to Salt Point Ranch 29 Comment
  UC604114  Ceanothus gloriosus var. exaltatus Leo Koch 1938-5-26 164 Sonoma transplanted from Vine Hill near type locality Santa Rosa (Junior College). Comment
  HSC101102  Ceanothus gloriosus var. exaltatus Peter Warner 2011-8-12 231 Sonoma Jenner Headlands, mid-upper Jenner Gulch watershed, ridgetop, about 1.6 km N42 deg. E fr. cottage on Willig Extension 322 Comment
  UCD111962  Ceanothus integerrimus Beecher Crampton 1954-4-26 1795 Sonoma Sonoma County, at border with Mendocino County, 3 miles north of Cloverdale, along U.S. Highway 101. Comment
  UCD36545  Ceanothus integerrimus Beecher Crampton 1954-4-26 1795 Sonoma Sonoma County, at border with Mendocino County, 3 miles north of Cloverdale, along U.S. Highway 101. Comment
  CAS-BOT-BC50955  Ceanothus integerrimus Maxine Wilkes 1933-6-1 s.n. Sonoma Mts near Cloverdale Comment
  SD56785  Ceanothus integerrimus var. macrothyrsus Darley F. Howe 1963-5-23 3529 Sonoma 4 mi. no. of Cloverdale on #128 334 Comment
  UCD112062  Ceanothus jepsonii R. H. Neuns 1950-5-5 104 Sonoma 2 1/2 miles west of Mercuryville. 914 Comment
  SEINET12210770  Ceanothus jepsonii var. jepsonii B. A. Stein 1981-1 448 Sonoma Summit of Harrison Grade Road, east of Occidental 244 Comment
  UCD112489  Ceanothus parryi B. Crampton 1955-6-17 2932 Sonoma State Hwy. 12, 3.3 miles west of Forestville. Comment
  UC1254092  Ceanothus purpureus J. A. Delapp 1964-2-28 71 Sonoma Black Mountain, Quad. 61D-3 457 Comment
  RSA755235  Ceanothus sonomensis Dylan O. Burge 2007-4-26 DOB 895 c Sonoma Mayacmas Mts.: head of Hooker Canyon, roadside on Cavedale Road, 4.0 road miles east of SR 12, 4.9 km 85 degrees true ENE of Glen Ellen. 560 Comment
  UC1299588  Ceanothus sonomensis Freed W. Hoffman 1947-3-12 754 Sonoma Trinity road, northeast of Kenwood, Napa Range, west slope Comment
  SBBG4507  Ceanothus sonomensis M. Van Rensselaer 1941-4-27 1638 Sonoma Mt Hood Range, between Valley of the Moon and Napa Valley on Trinity Rd just above rock quarry Comment
  UCD112733  Ceanothus thyrsiflorus var. griseus Mary M. Hektner 1976-5-10 251 Sonoma Along old fence on California Highway 1, Unit 35-A Owners' Map, Sea Ranch. Comment
  CAS-BOT-BC272113  Centaurea cyanus L. H. Huffins 1922-6-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC277018  Centaurea iberica Bremner 1932-8-11 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC277019  Centaurea iberica Greg de Nevers 1992-6-16 10167 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 304 Comment
  JEPS128218  Centaurea melitensis Roger Raiche 2000-5-5 098 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC277256  Centaurea solstitialis Robert M. King 1980-7-8 8416 Sonoma 5 miles generally Northeast of Santa Rosa Comment
  RSA662536  Centaurium floribundum J. C. Roos 1957-7-3 6652 Sonoma Healdsberg Comment
  JEPS79685  Centaurium trichanthum Nancy Harrison 1980-7-19 2143 Sonoma n of Kirby Lane (and e of s Wright Rd, air center property); Santa Rosa Comment
  CDA388  Centaurium venustum D. G. Kelch 2003-7-14 3 .379 Sonoma Cavedale Road. Comment
  CAS-BOT-BC157673  Centromadia Peter Rubtzoff; Nancy Harrison 1977-8-26 9118 Sonoma False Lake Meadow area, Annadel State Park. Comment
  CAS-BOT-BC249313  Cerastium Peter Rubtzoff 1963-6-22 s.n. Sonoma Bennett Mountain Lake. 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
  CAS-BOT-BC400233  Ceratophyllum demersum Peter Rubtzoff 1964-8-20 5464 Sonoma 1 mi. southeast of Jenner (nr. crossing of Hwys. 1 & 12) Comment
  CAS-BOT-BC135417  Cercocarpus betuloides var. betuloides Mary P. Wells 1987-3-27 878 Sonoma By West Soda Creek Road on cliff above Russian River Comment
  HSC18566  Cercocarpus montanus var. glaber R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1347 Sonoma 10 mi. W of Big Geysers along Sulphur Creek Comment
  RSA783837  Chenopodium Peter Rubtzoff 2012-3-7 8370 Sonoma South side of American River in the vicinity (west) of Watt Ave. bridge. Comment
Read comments
Sep 29 2013
  SEINET5763969 Image available Chenopodium ambrosioides H. S. Reed 1948-1 2025 Sonoma Sonoma Creek, near Kenwood Comment
  RSA94649  Chenopodium ambrosioides var. ambrosioides Peter Rubtzoff 1952-10-26 1337 Sonoma Open area between the Upper and the Lower marshes; Pitkin Marsh, near Forestville. Comment
  UCD158802  Chenopodium californicum James A. Neilson Jr. 1974-1 3062 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC499252  Chlorogalum pomeridianum Peter Rubtzoff 1951-8-18 617 Sonoma Pitkin Marsh, near Forestville, uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC191597  Chorizanthe cuspidata var. cuspidata John Thomas Howell 1930-6-8 5271 Sonoma at N end of Bodega Bay Comment
  CAS-BOT-BC376251  Chorizanthe membranacea Greg de Nevers 1995-5-2 10717 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. On south slope of rock west of High Hill 487 Comment
  CHSC297  Chrysanthemum segetum 1952-7-15 Sonoma Coastal. 30 Comment
  UC1193057  Chrysolepis chrysophylla var. minor R. H. Neuns 1950-5-23 114 Sonoma 2 mi w Cobb (on Cobb Mountain, on Sonoma-Lake County line); Cobb Mountain 1264 Comment
  CAS-BOT-BC285250  Cichorium intybus W. W. Carruth 1900-7-1 s.n. Sonoma Near Healdsburg Comment
  CAS-BOT-BC173837  Cirsium arvense Peter Rubtzoff 1955-8-13 2049 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC279994  Cirsium douglasii var. douglasii A. A. Heller 1902-7-2 5804 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  UC178901  Cirsium douglasii var. douglasii Katharine Brandegee 1905-6-25 Sonoma Bodega Comment
  CAS-BOT-BC280004  Cirsium douglasii var. douglasii L. R. Abrams 1920-7-3 7620 Sonoma Near Stewart Point Comment
  UCD160217  Cirsium occidentale James A. Neilson Jr. 1974-5-17 3166 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
  CAS-BOT-BC285705  Cirsium occidentale var. occidentale John Thomas Howell 1930-6-8 5251 Sonoma 1 mile east of Bodega Bay Comment
  CDA1484  Cirsium occidentale var. venustum T. C. Fuller 1958-5-24 4004 Sonoma 1.5 mi. N of Camp Meeker. 0 Comment
  CAS-BOT-BC280366  Cirsium occidentale var. venustum Walter Knight; Irja Knight 1967-7-24 1966 Sonoma Between Santa Rosa and St. Helena on St. Helena Road about 2 miles from Napa County line Comment
  RSA666353  Cirsium occidentale var. venustum Barbara Ertter, Lincoln Constance 1993-7-10 12100 Sonoma 5 miles beyond pavement on Rockpile Road west of Lake Sonoma (road to Annapolis) Comment
  RSA0070859  Cirsium quercetorum J. T. Howell 1938-7-3 13953 Sonoma Stony Point. Comment
  JEPS79728  Cirsium remotifolium var. odontolepis Edward Lee with W. A. Setchell 1936-6-7 2205 Sonoma MacLaren Trail Bohemian Grove (roadside) Comment
  UC30827  Cirsium remotifolium var. odontolepis F. T. Bioletti 1892-1 Sonoma Tracy 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-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
  UC422846  Clarkia amoena Milo S. Baker 1904-6-20 Sonoma Sonoma Creek Canyon Comment
  UC112987  Clarkia amoena subsp. amoena Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  CAS-BOT-BC161047  Clarkia amoena subsp. amoena Mary P. Wells 1981-8-2 s.n. Sonoma The Sea Ranch Comment
  CDA40856  Clarkia amoena subsp. huntiana G. F. Hrusa, A. Buckmann 1996-10-5 13585 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. Approx. 2 m. SW of Calistoga. Comment
  RSA108243  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-15 434 Sonoma Highway 1, 3.7 miles south of Fort Ross Historical Monument Comment
  SBBG60242  Clarkia concinna E. Rockwell -Jun-1926 Sonoma Guerneville, Russian River Comment
Read comments
Mar 19 2010
  UCD104432  Clarkia concinna P. B. Kennedy 1915-5-31 s.n. Sonoma Stewarts Point-Annapolis Road. Comment
  RSA299011  Clarkia concinna subsp. concinna W. L. Jepson 1921-6-2 9293 Sonoma Alder Glen School. Hopland, N Sonoma County 177 Comment
  UCD151107  Clarkia gracilis James A. Neilson Jr. 1974-6-1 s.n. Sonoma Mayacmas Mountains, Geyser Rock area, old road to Geyser Peak, ca. 3.5 mi. west of Whispering Pines, northeast Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UCD104539  Clarkia gracilis Frederica Bowcutt 1994-5-21 1803 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. 1/4 mile from trailhead. 1300 Comment
  RSA60765  Clarkia gracilis subsp. sonomensis A. A. Heller 1902-6-10 5682 Sonoma Santa Rosa Comment
  CAS-BOT-BC163150  Clarkia imbricata John Thomas Howell 1945-7-18 21315 Sonoma Dry slope bordering Pitkin Marsh Comment
  UC20370  Clarkia purpurea subsp. quadrivulnera F. T. Bioletti 1892-1 Sonoma Hood's Peak Comment
  CAS-BOT-BC163470  Clarkia purpurea subsp. quadrivulnera H. E. Parks; S. T. Parks 1930-5-10 0606 Sonoma In open hills around Knight's Valley Comment
  CAS-BOT-BC172355  Clarkia purpurea subsp. viminea J. W. Congdon 1880-6-5 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC164587  Clarkia purpurea subsp. viminea Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road 12 miles west of Hwy 101 Comment
  JEPS43668  Clarkia rhomboidea Eleanor Armstrong 1932-5-18 488 Sonoma 3 mi w Kenwood; Adobe Canyon 152 Comment
  CAS-BOT-BC165674  Clarkia unguiculata Freed W. Hoffman 1947-6-4 509 Sonoma Upper reaches of East Austin Creek, Rocky Mountain Comment
  CAS-BOT-BC439316  Claytonia exigua subsp. exigua F. Almeda; G. DeNevers 1981-3-30 4876 Sonoma Pepperwood Ranch. Along road to the Garrison Cabin at the SW sector of the ranch. Comment
  SJSU9881  Claytonia gypsophiloides G. J. Woodside 1969-4-29 Sonoma Dutton Bill Creek 4 mi above Camp Meeker at St Dorothy's Rest Comment
  UC1587551  Claytonia gypsophiloides K. L. Chambers 1977-3-29 4253 Sonoma 3.7 mi nw Hwy. 128 (Cloverdale to Boonedale rd.) jct. with Hwy. 101 (near Cloverdale) Comment
  CAS-BOT-BC439396  Claytonia gypsophiloides Catherine Best 1982-3-20 s.n. Sonoma On Graton Rd. 1 mi. East of Occidental Comment
  HSC49616  Claytonia gypsophiloides R. York 1979-4-8 202 Sonoma Along Hwy. 128, 2 mi. N of Calistoga 305 Comment
  POM164088  Claytonia gypsophiloides A. A. Heller, H. E. Brown 1902-3-16 4611 Sonoma Russian River, Near Trenton Comment
  RSA734381  Claytonia gypsophiloides Rimo Bacigalupi 1948-3-6 2855 Sonoma 2 mi. w. of Skaggs Springs, on loose shaly slope. Comment
  CAS-BOT-BC439633  Claytonia parviflora subsp. parviflora Peter Rubtzoff 1957-5-4 3305 Sonoma Duncan Mills Marsh. Comment
  UCD160143  Claytonia rubra subsp. depressa James A. Neilson Jr. 1974-4-4 3168 Sonoma Mayacmas Mountains, upper Squaw Creek. (Elevation estimated using Google Earth by label maker.) 975 Comment
  UCD100892  Claytonia sibirica Mary M. Hektner 1975-6-3 199 Sonoma coastal terrace, next to trail leading to the beach. Below Pipers' Reach, Unit 24 Owners' Map, near State Highway 1. Comment
  CAS-BOT-BC92746  Clematis ligusticifolia Volney Rattan 1877-6-24 s.n. Sonoma Healdsburg. Comment
  CAS-BOT-BC92751  Clematis ligusticifolia Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  CAS-BOT-BC92754  Clematis ligusticifolia John I. Carlson 1917-7-23 s.n. Sonoma Preston. Comment
  UC372781  Clematis ligusticifolia Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mill's Comment
  UC422862  Clintonia andrewsiana Milo S. Baker 1903-6-28 Sonoma near Duncan's Mills Comment
  UC909544  Clintonia andrewsiana E. W. Gifford August, 1950 Sonoma near Stewart's Point (adjacent to coast) 304 Comment
  RSA12260  Clintonia andrewsiana Carl B. Wolf 1934-6-29 5805 Sonoma 6/10 mile inland from Stewarts Point. 61 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
  SEINET5737213 Image available Collinsia heterophylla Johann D. Watjen 1969-1 26 Sonoma West slope of Sugar Loaf Ridge, 8 miles north of Sonoma.; Sugar Loaf Ridge 244 Comment
  POM126797  Collinsia sparsiflora H. P. Chandler 1907-4-28 7549 Sonoma Santa Rosa to Calistoga. Comment
  JEPS19379  Collinsia sparsiflora var. arvensis G. Thomas Robbins 1938-4-15 258 Sonoma 6-7 mi w Santa Rosa (along rd to Graton) Comment
  POM14838  Collinsia sparsiflora var. arvensis A. A. Heller 1903-4-23 6601 Sonoma Fort Ross. From type locality. Comment
  UC26654  Collinsia sparsiflora var. arvensis Mrs. Ward 1891-1 Sonoma Kenwood Comment
  RSA52690  Collinsia sparsiflora var. arvensis I. L. Wiggins 1949-4-30 12061 Sonoma Roadside 6.8 miles east of Santa Rosa on road to Calistoga Comment
  UC1238963  Collinsia tinctoria Freed W. Hoffman 1947-5-18 770 Sonoma Dutch Bill Creek near Camp Meeker (North Coast Ranges); , Dutch Bill Creek Comment
  UCSB31777  Collinsia tinctoria Townsend, J. 1977-5-30 Sonoma East side Russian river; about 2 miles south of Guerneville 335 Comment
  CAS-BOT-BC229502  Collomia rawsoniana Walter Knight; Irja Knight; Tiffany Knight 1985-7-15 5144 Sonoma From garden of Knight, Petaluma Comment
  UC23137  Convolvulus arvensis Alice King May 1897 Sonoma Healdsburg Comment
  POM232055  Conyza canadensis Roxana S. Ferris 1937-8-18 9369 Sonoma Dunes near mouth of Salmon Creek on Bodega Bay Comment
  UCD138898  Corallorhiza striata K. Esau 1933-4-14 s.n. Sonoma Napa County, Calistoga, near petrified forest. Comment
  CDA41356  Cordylanthus pilosus G. D. Barbe 1989-8-4 4356 Sonoma East of Dan Galvin Park, east of Matanzas Creek off Bennett Valley Road, south of Annadel State Park, South Santa Rosa. 0 Comment
  UC615338  Cordylanthus pilosus subsp. pilosus Beryl O. Schreiber 1933-8-10 Sonoma Jack London home Glen Ellen Comment
  JEPS83652  Cordylanthus pringlei R. Raiche 1987-6-20 70332 Sonoma N of Cazadero, The Cedars, Red Slide Creek at Rede Slice Falls. 304 Comment
  CAS-BOT-BC238230  Cordylanthus tenuis subsp. brunneus Steve Edwards 1984-7-22 s.n. Sonoma N. of Duvoul Cr., N. of Camp Meeker, E. of but not far above, Bohemian Hwy. 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
  UC1044679  Cordylanthus tenuis subsp. capillaris Milo S. Baker 1947-7-15 11866 Sonoma 2 mi ne Occidental; Harrison Grade Comment
  UCD123140  Cordylanthus tenuis subsp. capillaris Lewis S. Rose 1962-4-6 62078 Sonoma 2 mi. NE of Occidental. 182 Comment
  CAS-BOT-BC212287  Cornus glabrata Peter Rubtzoff 1952-5-31 1112 Sonoma South of the Upper Pitkin Marsh near Forestville Comment
  CAS-BOT-BC366870  Cornus glabrata Greg de Nevers 1998-4-27 11196 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  POM132437  Cornus occidentalis A. A. Heller 1902-7-1 5796 Sonoma Lagoon at Sebastopol Comment
  UCR248518  Cornus sericea subsp. occidentalis Peter Rubtzoff 1987-7-18 9797 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Along river, off Summerhouse Park Road, 0.2 miles west of Forest Hills Road 13 Comment
  UC1784134  Coronopus didymus Ethel Crum 1930-1 Sonoma Petaluma Comment
  UC480599  Corylus californica Carl Meyer 1928-3-4 325 Sonoma Sonoma County Comment
  UCD110093  Corylus cornuta subsp. californica J. M. Tucker 1951-6-26 2140 Sonoma Near summit of the range, beside road from Oakville to Glen Ellen. Comment
  UCSB1014  Corylus cornuta subsp. californica Keator, Glenn 1959-4-2 Sonoma 0.6 miles north of junction of Laguna road and 5.1 miles north of Sebastopol in Vinehill region Comment
  CAS-BOT-BC290297  Cotula coronopifolia Peter Rubtzoff 1952-5-10 1011 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  CAS-BOT-BC290301  Cotula coronopifolia Greg de Nevers; Frank Almeda 1987-4-11 8151 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC173676  Cotula coronopifolia Peter Rubtzoff 1962-10-9 5106 Sonoma Brooks Gulch Marsh. Comment
  UCD148403  Cotula coronopifolia Peter Rubtzoff 1958-5-17 3660 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occiental Road). Comment
  UCD165873  Cotula coronopifolia Peter Rubtzoff 1970-10-29 6419 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC368093  Crassula aquatica Greg de Nevers 1998-5-5 11227 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat 400 Comment
  CAS-BOT-BC427690  Crassula connata A. A. Heller; H. E. Brown 1902-4-14 5286 Sonoma Near Mark West Springs Comment
  CAS-BOT-BC143511  Crataegus gaylussacia Peter Rubtzoff 1973-10-10 7344 Sonoma (Tributary of Americano Creek) 2 mi. west of Bloomfield Comment
  CAS-BOT-BC32984  Crataegus gaylussacia Amos Arthur Heller 1902-8-20 6052 Sonoma at Sebastopol Comment
  RSA0025202  Crataegus monogyna Peter Rubtzoff, Roman Gatkin 1975-5-21 7977 Sonoma San Bruno Mtns: 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction. Comment
  UCD142160  Croton setiger Lewis S. Rose 1964-8-26 64065 Sonoma 6.5 miles NE of Penngrove; 426 Comment
  UCD142091  Croton setiger Barbara Ertter 1988-11-5 8033 Sonoma Lake Sonoma ca 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  CDA36048  Crupina vulgaris CDFA Staff Sep 1976 Sonoma Santa Rosa. 0 Comment
  CDA37889  Crupina vulgaris CDFA Staff s.n. Sonoma Santa Rosa. 0 Comment
  CDA4464  Crupina vulgaris H. K. Wagnon, J. T. Vale 1989-6-3 1896 Sonoma Anradel State Park, Santa Rosa. 0 Comment
  CAS-BOT-BC361330  Crypsis schoenoides Greg de Nevers 1997-7-20 11070 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa At Double Ponds and Turtle Pond 400 Comment
  CAS-BOT-BC366890  Crypsis schoenoides Greg de Nevers 1997-9-29 11098 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  RSA63678  Cryptantha intermedia M. S. Baker 1950-5-20 12218 Sonoma Hope Valley on Wood road opposite old Chamberlain Ranch, near Kenwood. Comment
  RSA0079376  Cryptantha muricata var. jonesii Michener, Bioletti 1892-5-30 s.n. Sonoma Hood s Peak. Comment
  SEINET10531470  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-18 Wolf 2154 Sonoma Head of Hooker Canyon, 4 7/10 mi E of Sonoma-Kenwood Road. Upper sonoran:- Chaparral. Sun. Open ridge in porous gray volcanic rock. 550 Comment
  CAS-BOT-BC85471  Cupressus sargentii Carl Brandt Wolf; E. R. Johnson 1934-10-13 2140 Sonoma 2 8/10 mi. from Camp Meeker on road to Monte Rio 60 Comment
  CAS-BOT-BC85474  Cupressus sargentii Lewis Samuel Rose 1955-7-11 55113 Sonoma 2 mi. e. of Occidental 243 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
  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
  SEINET10834045  Cupressus sargentii Carl B. Wolf, E. R. Johnson 1934-10-13 Wolf 2141 Sonoma Coys Ranch about 2 miles from Occidental. Life zone: Transition:- Sun. Serpentine. 90 Comment
  RSA120965  Cuscuta campestris Anita Noldeke 1956-7-24 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC166912  Cuscuta howelliana Peter Rubtzoff; Nancy Harrison 1976-6-18 8648 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UCD144421  Cynodon dactylon Frederica Bowcutt 1996-5-24 2165 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. Along Adobe Canyon Road in front of Bud Getty's house, near service area and coral. 365 Comment
  UCD119158  Cynoglossum grande Frederica Bowcutt; Kate Mawdsley 1996-3-24 2090 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. About 1 1/2 air miles W of Mount Saint John, along Brushy Peaks Trail just S of Malm Fork of Sonoma Creek. 426 Comment
  HSC3649  Cynoglossum grande F. Demostene 1966-4-12 50 Sonoma 25 mi. W of Healdsburg Comment
  CAS-BOT-BC312690  Cynosurus Peter Rubtzoff 1971-6-5 6515 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC190433  Cynosurus echinatus G. DeNevers 1981-5-5 957 Sonoma Pepperwood Ranch. On the bench south of the Studio. Comment
  UCD60164  Cynosurus echinatus Beecher Crampton 1957-7-11 4346 Sonoma Sonoma Coast State Park, 7.4 miles north of Salmon Creek. Comment
  CAS-BOT-BC114434  Cyperus erythrorhizos Peter Rubtzoff 1963-9-21 5270 Sonoma Laguna de Santa Rosa E of Graton. Comment
  CAS-BOT-BC114228  Cyperus fuscus Peter Rubtzoff 1987-10-17 9872 Sonoma Russian River ca. 6 mi E of Guerneville. Comment
  CAS-BOT-BC113907  Cyperus niger var. capitatus John Thomas Howell 1945-8-14 21412 Sonoma Perry marsh Comment
  CAS-BOT-BC113913  Cyperus niger var. capitatus Peter Rubtzoff 1959-8-30 4242 Sonoma Drake's Beach, near Guerneville. Open, wet gravelly margin of Russian River. Comment
  CAS-BOT-BC435190  Cypselea humifusa Peter Rubtzoff 1966-8-3 5780 Sonoma Bennett Mtn. Lake. Comment
  JEPS97535  Dactylis glomerata R. D. Stone 1980-11-29 327 Sonoma Northern part of the Sea Ranch development N of Stewart's Point. Comment
  UCD60289  Dactylis glomerata David L. Morgan 1961-4-26 s.n. Sonoma 6 mi. SW of Petaluma on Wilson Hill Rd., near junction of Petaluma--Pt. Reyes Rd. Comment
  UC1100154  Damasonium californicum Herbert L. Mason 1928-4-13 4325 Sonoma near Petaluma Petaluma Comment
  UC115528  Damasonium californicum unknown May 8 1880-Jun 7 1880 Sonoma near Petaluma Petaluma Comment
  CAS-BOT-BC176175  Danthonia californica Peter Rubtzoff 1971-6-5 6508 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC192272  Danthonia californica G. DeNevers 1981-7-1 1719 A Sonoma On the trail to the Studio. Pepperwood Ranch Comment
  CAS-BOT-BC192282  Danthonia californica H. S. Yates 1937-5-30 6540 Sonoma 1 1/2 miles N. N. E. of Graton Comment
  JEPS128374  Danthonia californica Roger Raiche 2000-5-4 065 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS86300  Danthonia californica Jack and Betty Guggolz 1989-4-29 1002 Sonoma Comment
  UC1023587  Danthonia californica Virginia Bufford 1936-5-14 282 Sonoma Sonoma Mt. Rd. about 10 mi from Santa Rosa Comment
  UC1131394  Danthonia californica var. americana H. S. Yates 1937-5-30 6541 Sonoma 1 1/2 mi nne Graton; Sebastopol Quadrangle Comment
  UCD37939  Danthonia californica var. americana Beecher Crampton 1962-5-8 6411 Sonoma Sonoma County, 5 miles south of Geyserville. Comment
  UCD60997  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3578 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  UCR152279  Danthonia californica var. americana Beecher Crampton 1965-5-13 7339 Sonoma c. 8.5 mi SE of Geyersville, S end of Alexander Valley, jct. of Calistoga (hwy 128) and Chalk Hill roads 85 Comment
  SEINET3926762  Danthonia californica var. americana Beecher Crampton 1962-5-8 6411 Sonoma Located 5 miles south of Geyserville.; 0 Comment
  UC19640  Datisca glomerata F. T. Bioletti 1891-9-7 Sonoma Los Guilucos Comment
  JEPS15984  Daucus carota W. L. Jepson 1931-7-19 15936 Sonoma Bodega, Watson School 152 Comment
  SEINET11845323  Delairea odorata W. Knight, Knight, I. 1990-1 6568 Sonoma along Coast Hwy #1 northbound through Jenner Comment
  UC963909  Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Val., west of Occidental on Hedrin Ranch Sonoma Co. Comment
  UC854102  Delphinium decorum Lewis S. Rose 1939-5-14 39123 Sonoma hills 1 mi e Bodega Bay 30 Comment
  CAS-BOT-BC10341  Delphinium hesperium Joseph Whipple Congdon 1880-6-1 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC10347  Delphinium hesperium Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC10349  Delphinium hesperium Roxana Stinchfield Ferris; L. Lorraine 1961-6-14 13540 Sonoma 1 mile on Joy Road from junction with Bodega Highway Comment
  UCSC000516  Delphinium hesperium C. B. Churchill 1-May s.n. Sonoma Sonoma Cr. Canon Comment
  CAS-BOT-BC10344  Delphinium hesperium Ella D. Cantelow 1938-5-15 2408 Sonoma About 5 mi. E of Geyserville near foot of grade to The Geysers Comment
  CAS-BOT-BC10348  Delphinium hesperium H. D. Ripley; R. C. Barneby 1945-6-22 6940 Sonoma North of Jenner Comment
  UC912568  Delphinium hesperium subsp. hesperium Herbert L. Mason 1934-4-28 8088 Sonoma Jensen's Ranch Comment
  CAS-BOT-BC10126  Delphinium luteum Mary Hallett 1927-4-1 s.n. Sonoma Graton Comment
  JEPS23518  Delphinium luteum Vina Wiley Kraeger 1923-4-1 Sonoma Bodega Comment
  UC725453  Delphinium luteum A. A. Heller 1940-5-17 15634 Sonoma on steep hillside along State Hwy 1 about a mile or so e Bodega Bay Comment
  UC1126017  Delphinium nudicaule E. Armstrong 1934-3-26 953 Sonoma 1 mi nw Camp Meeker; Sebastopol Quadrangle 121 Comment
  HSC24994  Delphinium nudicaule D. Sutherland, R. Spellenberg, A. Sylvester 1345 Sonoma 12 mi. W of Big Geysers along Sulphur Creek Comment
  LA207566  Delphinium variegatum J. Ewan; 1935-5-12 9241 Sonoma Los Guilicos, 2 mi. N of Kenwood Comment
  CAS-BOT-BC7768  Delphinium variegatum A. A. Heller; H. E. Brown 1902-4-16 5310 Sonoma Fields east of Santa Rosa Comment
  UC353904  Delphinium variegatum Milo S. Baker 1926-7 2140 a Sonoma Bennet Val Road near Summit Comment
  CAS-BOT-BC7765  Delphinium variegatum subsp. variegatum Ella D. Cantelow 1940-4-6 4273 Sonoma South of Shellville Comment
  CAS-BOT-BC5964  Dendromecon myrtifolia Amos Arthur Heller; H. E. Brown 1902-5-29 5618 Sonoma Mt. Hood Comment
  JEPS78745  Dendromecon rigida Edward Lee 1936-6-7 2187 Sonoma South Ridge fire trail Bohemian Grove Comment
  UCD95188  Dendromecon rigida E. Frost 1996-5-26 21 Sonoma Mt. St. Helena, 160 yards in along hiking trail. 609 Comment
  CAS-BOT-BC583  Dendromecon rigida subsp. rigida Catherine Best 1981-4-4 s.n. Sonoma Staetz Lane, 3 miles north of Occidental. Comment
  CAS-BOT-BC376437  Deschampsia danthonioides Greg de Nevers 1997-5-13 10999 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat. 400 Comment
  CAS-BOT-BC201954  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
  CAS-BOT-BC201967  Deschampsia elongata Peter Rubtzoff 1962-6-23 4960 Sonoma Guerneville Marsh Comment
  RSA126943  Deschampsia elongata H. S. Yates 1936-5-16 5607 Sonoma 1 mile N.W. of Mountain View School; Sebastopol 91 Comment
  CAS-BOT-BC907  Dicentra formosa subsp. formosa Peter Rubtzoff 1975-4-27 7950 Sonoma Forest Hills, 5.5 miles E of Guerneville. At 9981 Old River Road. Comment
  CAS-BOT-BC208931  Dichanthelium acuminatum subsp. acuminatum Peter Rubtzoff 1951-7-22 532 Sonoma Uppermost part of NE western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  UCR131633  Dichanthelium acuminatum subsp. thermale Beecher Crampton 1969-7-14 8493 A Sonoma Coast Range, The Geysers, 12 miles (direct line) east of Cloverdale, north slope of well above Geyser Creek 494 Comment
  RSA654140  Dichanthelium acuminatum var. thermale Beecher Crampton 1969-7-14 8493 a Sonoma The Geysers, 12 miles (direct line) east of Cloverdale. North slope of well above Geysers Creek. 494 Comment
  RSA670068  Dichanthelium acuminatum var. thermale Beecher Crampton 1964-8-18 7139 e Sonoma N.E. Somona 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.);, just below bubbling hat spring. 494 Comment
  UC1198177  Dichelostemma capitatum Joseph P. Tracy 1933-5-1 12125 Sonoma Knights Valley 152 Comment
  UCD166875  Dichelostemma capitatum Robert E. Preston 2016-3-26 3041 Sonoma Mayacamas Mountains, along Pine Flat Rd, 0.15 mi S of Red Hill summit. 660 Comment
  CAS-BOT-BC502211  Dichelostemma capitatum Alice Eastwood 1921-4-24 10346 Sonoma Santa Rosa Comment
  CAS-BOT-BC502218  Dichelostemma capitatum Dorothy Scherer 1996-4-26 038 Sonoma Along Fort Ross road ca 800' west of Seaview Road, Fort Ross State Historic Park 457 Comment
  CAS-BOT-BC502219  Dichelostemma capitatum F. G. Kraus 1894-5-1 s.n. Sonoma Mountains near Calistoga Comment
  SEINET12048691  Dichelostemma congestum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -170 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  UCD139158  Dichelostemma congestum Frederica Bowcutt 1996-5-24 2170 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 Creek and below confluence of Malm Fork. Along Meadow Trail. 381 Comment
  RSA130891  Dichondra donelliana E. K. Balls 1958-7-21 23584 Sonoma State Hwy. 1, 7.3 mi. se. from Fort Ross. 137 Comment
  CAS-BOT-BC209113  Digitaria sanguinalis Mary P. Wells 1985-8-19 599 Sonoma Ducker Creek Dike, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC152045  Diplacus aurantiacus F. H. Utech; Walter Knight; Irja Knight 1984-4-16 84 -076 Sonoma Ca 4.0 mi. NNW of Sonoma on Cavedale road from junction with CA hwy 12, ca. 0.4 mi N on Cavedale Road from junction. 106 Comment
  CAS-BOT-BC151881  Diplacus congdonii John Thomas Howell 1937-4-11 12892 Sonoma Triniti Mt. east of Glen Ellen Comment
  UC429275  Disporum hookeri Milo S. Baker 1904-6-20 Sonoma Sonoma Creek Canyon Comment
  CAS-BOT-BC182763  Distichlis spicata Peter Rubtzoff 1962-7-14 5000 Sonoma Lower Salmon Creek Marsh. Comment
  SJSU8499  Dodecatheon hendersonii T. A. Wayne III 1962-4-7 Sonoma midway between Bodega Bay & Salmon Cr 91 Comment
  JEPS77865  Downingia concolor var. concolor Robert M. Lloyd 1965-5-8 3628 Sonoma 3 mi n Highway 12 junction with Aqua Caliente Road (on Highway 12, meadow across from Lawrence Triangle End Garage) Comment
  SD106151  Downingia concolor var. concolor W. L. Jepson 1921-6-3 9313 Sonoma Cotati Valley, at Wilfrid Station. Comment
  JEPS14401  Downingia pusilla W. L. Jepson 1921-5-6 9194 Sonoma Sonoma Valley Comment
  JEPS26984  Downingia pusilla Milo S. Baker 1927-5-8 2114 Sonoma near Bennett Valley Road summit Comment
  UC1188755  Downingia pusilla John H. Weiler 1960-4-22 60100 Sonoma 1.7 mi n Sonoma State Home entrance (3 mi n of Agua Caliente, on the w side of State Highway 12) Comment
  CAS-BOT-BC159446  Drymocallis glandulosa var. glandulosa Peter Rubtzoff 1953-5-18 1410 Sonoma Near road from Edendale to Vacation Beach, near Guerneville Comment
  POM179770  Drymocallis glandulosa var. wrangelliana J. T. Howell 1930-6-8 5255 Sonoma 1 mile east of Bodega Bay Comment
  SEINET3859844 Image available Drymocallis wrangelliana A. A. Heller 1903-4-25 6598 Sonoma Fort Ross.; 0 Comment
  CAS-BOT-BC71017  Dryopteris arguta A. A. Heller 1902-3-18 5095 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  CAS-BOT-BC71018  Dryopteris arguta Peter Rubtzoff 1952-6-10 1230 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  UCR222528  Dryopteris arguta George K. Helmkamp, E. A. Helmkamp 2010-6-5 16249 Sonoma North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville 44 Comment
  CAS-BOT-BC71014  Dryopteris arguta Volney Rattan 1877-6-25 s.n. Sonoma Cloverdale Comment
  CAS-BOT-BC71019  Dryopteris arguta A. T. Graff 1926-2-1 s.n. Sonoma Cazadero Comment
  UCR143604  Dudleya G. F. Pratt, C. Pierce 2003-6-12 s.n. Sonoma Pacific Coast, Salt Point State Park 12 Comment
  SEINET12216915  Dudleya cymosa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -207 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd, between Jimtown & Mercuryville 800 Comment
  SD71429  Dysphania ambrosioides Peter Rubtzoff 1958-8-16 3867 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road) Comment
  UCD98756  Dysphania botrys Peter Rubtzoff 1956-9-14 2881 Sonoma Vacation Beach, near Guerneville. Comment
  UCD98818  Dysphania pumilio Barbara Ertter 1988-11-5 8032 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  CAS-BOT-BC210130  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
  CAS-BOT-BC176371  Echinochloa crus-galli Peter Rubtzoff 1955-9-10 2140 Sonoma East Guernewood, near Guerneville. Comment
  CAS-BOT-BC257351  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7881 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  UC1055948  Eleocharis acicularis Francia Chisaki, Peter Kamb 1950-6-16 1865 Sonoma 1 mi N of Sousa Corners (NW from Sebastopol, Pitkin Marsh) Comment
  CAS-BOT-BC113727  Eleocharis acicularis Catherine Best 1981-8-22 s.n. Sonoma At the pond on Stoltz Lane about 2 miles NE of Occidental. Comment
  CAS-BOT-BC113318  Eleocharis montevidensis Helen D. Geis 1902-8-1 s.n. Sonoma Sring. Comment
  RSA800154  Eleocharis palustris Peter Rubtzoff 1976-5-30 8563 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC112664  Eleocharis parvula Peter Rubtzoff 1962-8-3 5026 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC112074  Eleocharis quinqueflora Peter Rubtzoff 1952-5-31 1125 Sonoma Pitkin Marsh, near Forestville: Lower part of the Upper Marsh. Comment
  CAS-BOT-BC112202  Eleocharis radicans Peter Rubtzoff 1956-9-16 2918 Sonoma Vacation Beach, near Guerneville. Open, muddy margin of a pool on Russian River bottom. Comment
  UCD165112  Eleocharis rostellata Peter Rubtzoff 1973-9-9 7321 Sonoma Kenwood Marsh. Comment
  RSA92834  Eleocharis rostellata Peter Rubtzoff 1951-7-8 404 Sonoma Pitkin Marsh, near Forestville: Lower part of Upper Marsh Comment
  CAS-BOT-BC213785  Elymus X hansenii D. E. Breedlove 1980-6-28 44805 Sonoma Pepperwood Ranch W of Knights Valley Comment
  JEPS27642 Image available Elymus divergens J. Burtt Davy 1897-9-18 4037 Sonoma near Petaluma; ; Near Petaluma, Sonoma Co. Comment
  UCD61432  Elymus elymoides Beecher Crampton 1959-6-16 5386 Sonoma 1 mile E of Occidental. Comment
  SEINET266626  Elymus glaucus P. G. Connors 1990-6-4 25 Sonoma Bodega Head. Comment
  CAS-BOT-BC203708  Elymus glaucus subsp. glaucus Milo S. Baker 1945-5-15 10919 Sonoma 4 mi W of Santa Rosa near Wright's School Comment
  CAS-BOT-BC203709  Elymus glaucus subsp. glaucus David L. Morgan 1956-5-13 s.n. Sonoma 2 mi. W. of Petaluma on I st. Ext. Comment
  CAS-BOT-BC203710  Elymus glaucus subsp. glaucus David L. Morgan 1955-6-28 s.n. Sonoma Two Rock Comment
  JEPS128373  Elymus glaucus subsp. glaucus Roger Raiche 2000-5-4 062 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD37354  Elymus glaucus subsp. virescens Beecher Crampton 1959-6-16 5399 Sonoma Sonoma County, 1.5 miles southeast of Bodega Bay, along State Highway 101. Comment
  CAS-BOT-BC235233  Elymus multisetus Roxana S. Ferris; Laura Lorraine 1961-6-15 13571 Sonoma About 1/8 mile beyond County Dump Comment
  UCD62508  Elymus multisetus David L. Morgan 1956-5-15 Sonoma 3 mi. W. of Petaluma on 'I' st. Ext. Comment
  CAS-BOT-BC376326  Elymus stebbinsii Greg de Nevers 1993-8-7 10479 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UC1042506  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1951-8-4 586 Sonoma opening s Upper Marsh (near Forestville); Pitkin Marsh Comment
  RSA800032  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1954-7-4 1520 Sonoma Austin Creek Marsh. In an area adjoining the marsh in the southwest. Comment
  CAS-BOT-BC290548  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5339 Sonoma Bodega Bay Marsh. Comment
  SBBG5065  Epilobium ciliatum subsp. watsonii H. and M. Dearing 1939-5-14 3365 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC268073  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-8-13 1715 Sonoma Bodega Head Marsh. Comment
  RSA181915  Epilobium foliosum Freed W. Hoffman 1947-4-13 1848 Sonoma North Coast Ranges: Gilliam Creek, near Guerneville Comment
  RSA784480  Equisetum Peter Rubtzoff 1973-8-29 7285 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC57130  Equisetum X ferrissii John Thomas Howell 1951-5-28 27502 Sonoma Eastern branch of the Pitkin Marsh Comment
  RSA784475  Equisetum laevigatum Peter Rubtzoff 1961-8-26 4725 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  JEPS79542  Equisetum telmateia subsp. braunii Edward Lee with W. A. Setchell 1936-6-7 2174 Sonoma Trail No. 10 Bohemian Grove Comment
  UCD135595  Equisetum telmateia subsp. braunii Frederica Bowcutt 1997-7-18 2180 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, West Bear Ck. 365 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
  RSA216112  Equisetum telmateia var. braunii Peter Rubtzoff 1957-4-28 3288 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC204540  Eragrostis curvula Peter Rubtzoff 1971-8-23 6653 Sonoma Meacham Road 0.35 mi. south of Stony Point Road Comment
  CAS-BOT-BC182756  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1956-9-21 2937 Sonoma Vacation Beach, near Guerneville. Comment
  UCD148327  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1954-7-3 1517 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC284043  Eragrostis minor Peter Rubtzoff 1958-8-30 3931 Sonoma Vacation Beach 1.5 mile below Guerneville, bank of Russian River Comment
  CAS-BOT-BC291253  Erechtites minimus John H. Thomas 1976-6-17 18351 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma County, about 4 miles south of Gualala Comment
  CAS-BOT-BC368007  Ericameria arborescens Greg de Nevers 1989-9-5 9100 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  UC194498  Ericameria arborescens Edw. L. Greene 1888-9-1 Sonoma Petrified Forest Comment
  CAS-BOT-BC131610  Ericameria arborescens Walter Knight; Irja Knight 1963-8-23 194 Sonoma Joost Ranch, Calistoga Rd. Comment
  CAS-BOT-BC293624  Erigeron biolettii Walter Knight; Irja Knight 1963-10-27 411 Sonoma Spring Mt. Road Comment
  JEPS41420  Erigeron biolettii W. L. Jepson 1937-9-29 18575 Sonoma Glass Mt. St. Helena (on road to sanitarium) Comment
  SD40124  Erigeron glaucus Edith A. Purer 1932-7-24 4080 Sonoma Bodega Bay Comment
  CAS-BOT-BC300305  Erigeron supplex Mary P. Wells 1984-7-6 357 A Sonoma Site of North Fire Station. The Sea Ranch Comment
  CAS-BOT-BC224153  Eriodictyon californicum Walter Knight; Irja Knight 1963-12-27 469 Sonoma Summit, Pine Flat Rd. Comment
  SEINET12329974  Eriodictyon californicum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -191 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  SEINET12329981  Eriodictyon californicum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -239 Sonoma end of Stoetz Road 200 Comment
  RSA765541  Eriogonum cedrorum Roger Raiche 2010-7-11 36 .1 Sonoma The Cedars, headwaters of Big Austin Creek, Azalea Creek drainage 383 Comment
  UCD158782  Eriogonum compositum var. compositum James A. Neilson Jr. 1974-6-1 2775 Sonoma Mayacmas Mountains, Geyser Rock, northeastern Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CAS-BOT-BC248813  Eriogonum compositum var. compositum Roger Raiche 1983-6-4 30373 Sonoma On s. side of Sweetwater Springs Rd. (above Porter Creek somewhat e. of its intersection with John Gordon Creek), 3.9 mi. w. on Sweetwater Springs Rd. from its origin at west side highway 121 Comment
  POM105430  Eriogonum latifolium Marcus E. Jones 1882-7-17 5 M-11-26 Sonoma Duncan's Mills. Comment
  RSA48870  Eriogonum latifolium Lucille Roos 1949-1 4654 Sonoma Shell Beach, Jenne [Jenner]. Comment
Read comments
Sep 24 2015
  SD22291  Eriogonum latifolium John Thomas Howell 1930-7-27 5413 Sonoma Marine bluff, 4 miles north of Bodega Bay Comment
  SD22296  Eriogonum latifolium John Thomas Howell 1930-7-27 5414 Sonoma Marine bluff, 4 miles north of Bodega Bay Comment
  CAS-BOT-BC259469  Eriogonum luteolum R. F. Hoover 1965-6-29 9476 Sonoma North of summit on Harrison Grade road near Occidental Comment
  JEPS128231  Eriogonum luteolum Roger Raiche 1999-10-9 046 .99 Sonoma The Cedars. Barnes' Blue Spring Complex. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC259468  Eriogonum luteolum Catherine Best 1981-8-23 s.n. Sonoma Stoetz Lane, 2 m. east of Occidental Comment
  UC1299729  Eriogonum luteolum var. luteolum Freed W. Hoffman 1946-9-26 568 Sonoma Layton Mine Austin Creek, Layton Mine Comment
  UC6525  Eriogonum luteolum var. luteolum Alice King Oct. 1896 Sonoma Healdsburg Comment
  CAS-BOT-BC261685  Eriogonum nudum var. nudum F. G. Krauss 1893-10-8 s.n. Sonoma K. Ranch Comment
  CAS-BOT-BC261695  Eriogonum nudum var. nudum Peter Rubtzoff 1952-6-10 1246 Sonoma Resort at east base of Fitch Mtn., near Healdsburg Comment
  SEINET3160014  Eriogonum nudum var. nudum L. S. Rose 1933-9-3 33351 Sonoma 9 mi. W Petrified Forest Comment
  CAS-BOT-BC269748  Eriogonum nudum var. oblongifolium J. W. Congdon 1880-9-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC269749  Eriogonum nudum var. oblongifolium Peter Rubtzoff 1952-6-1 1133 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  UCD160898  Eriophyllum lanatum James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3286 Sonoma Mayacmas Mountains, adjacent to Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottlerock Road, east Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD131472  Eriophyllum lanatum Beecher Crampton 1959-6-16 5366 Sonoma 3 miles west of Graton. Comment
  CAS-BOT-BC301151  Eriophyllum lanatum var. achilleoides F. G. Krauss 1893-10-8 s.n. Sonoma Krauss Ranch Comment
  CAS-BOT-BC301159  Eriophyllum lanatum var. achilleoides D. E. Breedlove 1980-6-27 44749 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC494084  Eriophyllum lanatum var. achilleoides H. E. and S. T. Parks 1930-5-10 0 -837 Sonoma Knights Valley Comment
  CAS-BOT-BC301158  Eriophyllum lanatum var. achilleoides Peter Rubtzoff 1952-6-1 1131 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  JEPS34642  Eriophyllum lanatum var. arachnoideum M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 250 Sonoma between Gurneville and Monte Rio; Russian River Comment
  RSA603483  Eriophyllum lanatum var. arachnoideum Jens Clausen 1935-5-24 1086 Sonoma 5.1 miles S of Jenner, on the Bodega Road. Comment
  UCD38478  Eriophyllum staechadifolium Beecher Crampton 1955-6-17 2972 Sonoma State Hwy. 1, 4 miles south of Fort Ross. Bluffs above the sea. Comment
  SEINET12183675  Erodium brachycarpum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -247 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  RSA178011  Erodium moschatum Robert F. Thorne 1965-4-19 34264 Sonoma Cotati, Waters Ranch 30 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
  UC1307395  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1955-4-23 1773 Sonoma Bennett Mt. Lake Comment
  UC1487266  Eryngium aristulatum var. aristulatum Yusuf Sheikh and Peter Rubtzoff 1971-7-20 502 Sonoma w. Santa Rosa (at junction of State Hwy. 12 & Wright Rd.) Comment
  RSA93411  Eryngium aristulatum var. aristulatum Milo S. Baker 1954-8-12 13036 Sonoma Coney Lake Kenwood on Coney Ranch Comment
  SBBG5184  Eryngium armatum H. and M. Dearing 1939-5-14 3355 Sonoma bluffs above the sea, Bodega State Park [Bodega Dunes State Beach] Comment
  SEINET12121701  Eryngium armatum W. Knight, Knight, I. 1984-1 5424 Sonoma Willow Creek "Rd 61 Comment
  UCD38723  Eryngium armatum Beecher Crampton 1957-7-11 4324 Sonoma Sonoma Coast State Park. 0.8 miles north of Salmon Creek. Comment
  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
  UC1126593  Erysimum capitatum E. Armstrong 1934-3-26 939 Sonoma 3 mi n Camp Meeker; Sebastopol Quadrangle Comment
  CAS-BOT-BC54719  Erysimum concinnum Alice Eastwood 1899-5-1 s.n. Sonoma Bodega Point. Comment
  CAS-BOT-BC54721  Erysimum concinnum Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point. Comment
  UC1299356  Erythronium californicum Freed W. Hoffman 1947-4-20 1866 Sonoma near Mercury (Geysers to Healdsburg); North Coast Ranges Comment
  UCD151111  Erythronium californicum James A. Neilson Jr. 1974-6-1 2938 Sonoma Mayacmas Mountains, Mercuryville, The Geysers Road. (Elevation estimated by label maker using Google Earth.) 822 Comment
  UCR265137  Erythronium californicum Ann Howald 2015-4-1 3314 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 14.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 520 Comment
  CAS-BOT-BC502683  Erythronium californicum Volney Rattan 1877-6-25 s. n. Sonoma near Cloverdale Comment
  CAS-BOT-BC110557  Eschscholzia John H. Thomas 1969-4-28 14929 Sonoma Duncan's Mill between the coast and Guerneville. Comment
  CAS-BOT-BC402862  Eschscholzia caespitosa W. R. Ernst 1959-5-3 543 Sonoma About 1 mile southeast of Rionido Comment
  CAS-BOT-BC403701  Eschscholzia californica Alice Eastwood 1915-6-29 4823 Sonoma Bodega Point Comment
  CAS-BOT-BC403708  Eschscholzia californica Joanne Taylor 1941-7-13 3 Sonoma Bodega Head 30 Comment
  CAS-BOT-BC403710  Eschscholzia californica John H. Thomas 1976-6-16 18328 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC403709  Eschscholzia californica G. DeNevers 1981-4-23 789 Sonoma Pepperwood Ranch. Pippindale farm. Pippindale Garden Comment
  CAS-BOT-BC202766  Euonymus occidentalis H. E. McMinn 1922-6-7 190 Sonoma Above Monte Rio Comment
  SJSU1062  Euonymus occidentalis A. W. Jacobs 1950-7-15 Sonoma near Cloverdale Comment
  JEPS22971  Euonymus occidentalis var. occidentalis Harry K. Roberts 1959-5-18 Sonoma n.w. Sebastopol (Louis Giovanni ranch, first canyon s. of ranch house); Green Valley, Louis Giovanni ranch Comment
  CAS-BOT-BC202538  Euphorbia Peter Rubtzoff 1978-8-12 9251 Sonoma Russian River at Del Rio Beach, ca. 2.5 mi. east of Healdsburg on So. Fitch Mtn. Road 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
  RSA0059081  Euphorbia Greg de Nevers 1992-8-16 10244 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Rd. On Franz Valley School Road. 152 Comment
  RSA0051265  Euthamia occidentalis Greg de Nevers 2002-9-9 12841 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 152 Comment
  CAS-BOT-BC239725  Fabaceae Peter Rubtzoff 1971-6-25 6563 Sonoma Intermittent lake off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing Comment
  CAS-BOT-BC283185  Festuca californica subsp. californica G. DeNevers 1981-4-27 882 Sonoma West arm of Garrison Canyon, Pepperwood Ranch Comment
  CAS-BOT-BC278885  Festuca occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-14 13534 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway Comment
  UCD151089  Festuca occidentalis James A. Neilson Jr. 1973-6-3 2960 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
  UCD66260  Festuca roemeri H. S. Yates 1937-5-30 6544 Sonoma 3 miles NW of Graton. 60 Comment
  UCD66381  Festuca rubra Peter Rubtzoff 1951-6-7 113 Sonoma Pitkin Marsh, near Forestville. Western branch of the upper marsh. Comment
  CAS-BOT-BC353382  Filago Peter Rubtzoff 1972-6-29 6801 Sonoma Laguna, Chileno Valley. Comment
  RSA177900  Filago californica R. F. Thorne 1965-4-20 34352 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  SEINET181249  Filago gallica Bassett Maguire, R Maguire; Maguire 1934-6-7 15312 Sonoma 2 mi N of Kellogg Comment
  RSA285079  Filago pyramidata J. T. Howell 1976-4-26 51595 Sonoma Hills E o Geyserville on road to Geysers Comment
  UCSB50247  Fragaria chiloensis Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach. T6N R11W. 18 Comment
  CAS-BOT-BC53282  Frangula californica subsp. californica Mrs. E. C. Sutliffe 1920-8-1 s.n. Sonoma Annapolis Comment
  CAS-BOT-BC223852  Frankenia palmeri Peter Rubtzoff 1955-8-20 2076 Sonoma Bodega Harbor Marsh Comment
  CDA43437  Frankenia salina Stephanie Larson 2015-7-21 PDR# 49 UP06191161 Sonoma Near Highway 37. 0 Comment
  CAS-BOT-BC218577  Fraxinus latifolia D. E. Breedlove 1980-6-27 44770 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC218587  Fraxinus latifolia Peter Rubtzoff 1951-8-19 653 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  CDA29319  Fraxinus latifolia D. G. Kelch 2007-10-16 7 .644 Sonoma Novato. Novato Creek nr Pioneer Park. 0 Comment
  UC34903  Fraxinus latifolia W. A. Setchell 1897-6-16 Sonoma Cazadero Comment
Read comments
Dec 31 2015
  UCD122047  Fraxinus latifolia Frederica Bowcutt 1994-5-1 1777 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 S of Sonoma Creek bout 150 yards, 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 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-BC130358  Fritillaria liliacea J. W. Congdon 1880-4-3 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC508138  Fritillaria recurva Roger Raiche 1985-4-6 50176 Sonoma West of Healdsburg, ridge on west side of Dry Creek Valley, north of Dorman Canyon up to Bradford Mt. 243 Comment
  CAS-BOT-BC508139  Fritillaria recurva John Thomas Howell 1934-3-26 11782 Sonoma Southwestern base of Mt. Hood Comment
  RSA264748  Galium aparine Peter Rubtzoff 1964-7-29 5439 Sonoma Brooks Gulch Marsh. Comment
  UCD121640  Galium aparine Frederica Bowcutt 1994-6-12 1851 b 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 along east west trending stretch before entering oak woodland, out of view of kiosk and campground. 420 Comment
  LA208415  Galium californicum John Thomas Howell; 1930-6-8 5246 Sonoma 1 mi east of Bodega Bay Comment
  UCD121863  Galium parisiense Frederica Bowcutt 1997-7-18 2181 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
  UCR30592  Galium parisiense John C. Roos 1950-7-22 4875 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  POM367848  Galium parisiense Christopher Davidson 1977-6-20 6039 Sonoma Ca 30 miles W of Geyserville on Stewart's Point-Skaggs Springs Rd. Or 5 miles E of jct of latter with road N to Annapolis. Gravel bar and gravel bank just above it on Wheatfield Fork of Gualala River. 76 Comment
  OBI35972  Galium triflorum David J. Keil 1983-6-29 17198 Sonoma Ca 10 mi SE of Ft Ross along hwy 1 Comment
  JEPS20521  Gamochaeta ustulata M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 231 Sonoma Guerneville Russian River, Guerneville Comment
  RSA790991  Gamochaeta ustulata Peter Rubtzoff 1974-5-25 7458 Sonoma Upper Green Valley Marsh. Comment
  UCD132378  Gamochaeta ustulata Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-27 78 Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC303497  Gamochaeta ustulata G. DeNevers 1981-4-23 784 Sonoma Pippindale farm, Clarence Wright land at Garrison fence, ridgetop, along Hansel's fenceline Comment
  RSA28561  Gamochaeta ustulata Annetta Carter, Ethel Crum 1941-6-22 2148 Sonoma 3.3 miles E of Bay (Bodega Bay). Comment
  RSA94010  Gamochaeta ustulata Peter Rubtzoff 1951-7-8 398 Sonoma Pitkin Marsh, near Forestville: Lower part of Upper Marsh Comment
  CAS-BOT-BC199062  Garrya elliptica Ida K. McClish 1928-10-1 s.n. Sonoma Near Healdsburg. Comment
  UC486540  Garrya elliptica Mrs. G. Earle Kelly 1932-7-13 Sonoma Stewart Point Comment
  CDA11138  Garrya fremontii G. F. Hrusa, G. L. Stebbins, D. Kelch 1993-11-22 11549 Sonoma North Coast Biodiversity Arena; First (unnamed) tributary of Sulphur Creek, immediately after Geysers Road crosses creek. Adjacent to old homestead (on 7.5' quad). Comment
  UC353921  Garrya fremontii Milo S. Baker Jan 1928 3235 b Sonoma Hope Valley; n of Barber place Comment
  CAS-BOT-BC182162  Garrya fremontii Walter Knight; Steve Edwards 1985-11-17 5184 Sonoma ridge northwest of summit of Kortum Canyon Road Comment
  CAS-BOT-BC320553  Gastridium Peter Rubtzoff 1972-6-29 6798 Sonoma Laguna, Chileno Valley. Comment
  SEINET4571745  Gastridium phleoides L. Koch 1940-4-22 837 Sonoma Grassy hills above Sulfur Creek Geysers Comment
  UC903724  Gastridium ventricosum Milo S. Baker 1947-5-7 11746 Sonoma sw slope Hood Mt. (above Baker Ranch); sw slope of Hood Mt. 213 Comment
  UC903743  Gastridium ventricosum Milo S. Baker 1947-5-5 11727 Sonoma s slope Hood Mt. (above Baker ranch); s slope of Hood Mt. 213 Comment
  UCSB4791  Gaultheria shallon Keator, Glenn 1959-4-1 Sonoma 1.5 miles north of Fort Ross Monument on Highway 1 Comment
  UC1191687  Gentiana sceptrum Herbert L. Mason 1946-7-4 12891 Sonoma between Santa Rosa and Forestville; Pitkin Marsh Comment
  SBBG3921  Geranium dissectum H. and M. Dearing 1939-5-14 3360 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  RSA74043  Gilia capitata Anonymous 1947-5-30 11776 Sonoma ca 2 mi NE of Occidental along Harrison grade Comment
  UCD117655  Gilia capitata Roxana S. Ferris; Laura Lorraine 1961-6-15 13569 Sonoma about 0.125 mile beyond County Dump. Comment
  UCD117691  Gilia capitata subsp. capitata Frederica Bowcutt 1994-6-12 1864 Sonoma 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, at Pony Gate trail juncture. 432 Comment
  CAS-BOT-BC225282  Gilia capitata subsp. chamissonis Roxana S. Ferris 1932-5-27 8259 Sonoma Sand dunes, upper Bodega Bay Comment
  CAS-BOT-BC227640  Glyceria Peter Rubtzoff 1966-4-30 5687 Sonoma North side of Hwy. 116, 0.5 miles northwest of Stony Point Road crossing. Comment
  RSA786494  Glyceria declinata Peter Rubtzoff 1966-5-29 5739 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road crossing). Comment
  UCD66769  Glyceria declinata Collector Unknown 1982-5-21 Sonoma Sonoma County. Comment
  CAS-BOT-BC282731  Glyceria elata Peter Rubtzoff 1962-5-25 4842 Sonoma Laguna de Santa Rosa area northeast of Graton east of Laguna Road Comment
  RSA126635  Glyceria leptostachya H. S. Yates 1937-5-30 6554 Sonoma 1.5 miles E. of Occidental. 91 Comment
  UCD57076  Glyceria leptostachya B. Crampton 1955-6-17 2937 Sonoma 1/2 mile south of Guerneville. Comment
  UCR244672  Glyceria occidentalis Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa 24 Comment
  CAS-BOT-BC290690  Gnaphalium Peter Rubtzoff 1987-10-17 9875 Sonoma Russian River ca. 6 miles east of Guerneville. Comment
  UCD165005  Gnaphalium Peter Rubtzoff; Nancy Harrison 1974-9-7 7883 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  CAS-BOT-BC173574  Gnaphalium Peter Rubtzoff 1970-10-3 6403 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC166785  Gnaphalium palustre Peter Rubtzoff 1959-8-30 s.n. Sonoma Drake's Beach near Guerneville. Comment
  CAS-BOT-BC302685  Gnaphalium palustre A. A. Heller 1902-6-10 5684 Sonoma Santa Rosa Comment
  CAS-BOT-BC302695  Gnaphalium palustre Peter Rubtzoff 1958-7-5 3736 Sonoma Atascadero Creek Marsh. Comment
  RSA785847  Gnaphalium palustre Peter Rubtzoff 1969-10-29 6202 Sonoma River Road, 3 mi W of Fulton Comment
  CDA6005  Gnaphalium purpureum T. C. Fuller 1958-5-24 3985 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  UCD165129  Gratiola Peter Rubtzoff 1974-5-11 7387 Sonoma Todd Road, 1.4 miles from hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC305171  Grindelia hirsutula Catherine Best 1982-8-18 s.n. Sonoma At Goat Rock Park Comment
  CAS-BOT-BC305178  Grindelia hirsutula John Thomas Howell 1930-6-8 5294 Sonoma 4 miles n. of Bodega Bay Comment
  CAS-BOT-BC305179  Grindelia hirsutula John Thomas Howell 1938-7-3 13946 Sonoma Stony Point Comment
  CAS-BOT-BC305181  Grindelia hirsutula J. T. Howell 1930-7-13 5338 Sonoma Black Point Road Comment
  CAS-BOT-BC305188  Grindelia hirsutula J. T. Howell 1930-7-13 5338 Sonoma Black Point road Comment
  CAS-BOT-BC305198  Grindelia hirsutula Marcus E. Jones 1931-7-5 29142 Sonoma The Geysers Comment
  CAS-BOT-BC305199  Grindelia hirsutula A. A. Heller 1902-7-8 5810 Sonoma Mark West Creek north of Santa Rosa Comment
  JEPS41905  Grindelia hirsutula R. F. Hoover 1941-6-7 5306 Sonoma Occidental Comment
  UCD166081  Grindelia hirsutula Peter Rubtzoff 1971-6-10 6533 Sonoma Laguna de Santa Rosa E of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC305189  Grindelia hirsutula John Thomas Howell 1929-6-9 4304 Sonoma 4 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC305191  Grindelia hirsutula Catherine Best 1981-10-18 s.n. Sonoma On the Coleman Valley Road about 7 mi West of Occidental Comment
  POM225966  Grindelia stricta var. platyphylla P. A. Munz 1936-8-7 14306 Sonoma 2 miles north of Bodega. Comment
Read comments
Feb 6 2013
  JEPS54106  Guillenia lasiophylla Milo S. Baker 1898-6-1 589 Sonoma Santa Rosa Cemetery Comment
  CAS-BOT-BC361294  Habenaria Greg de Nevers 1993-8-30 10493 Sonoma Field redacted by CAS, contact the data manager for more information 457 Comment
  UC38767  Hainardia cylindrica A. B. Leckenby July, 1896 Sonoma Petaluma Comment
  CDA34787  Hedera helix Peter Warner 2010-2-28 109 Sonoma Sweetwater Springs Rd., 4.7 mi. W of Westside Rd.; in redwood stand immediately along S road edge. Comment
  CAS-BOT-BC262954  Helenium puberulum Peter Rubtzoff 1959-9-19 4286 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC309586  Helenium puberulum Marcus E. Jones 1931-7-5 29104 Sonoma The Geysers Comment
  UCR30567  Helenium puberulum John C. Roos 1948-8-28 3957 Sonoma North Coast Ranges, Barrel Spring, Mill Creek, near Healdsburg 152 Comment
  POM260541  Helenium puberulum Roxana S. Ferris 1937-8-18 9374 Sonoma Near mouth of Salmon Creek on Bodega Bay. Comment
  CAS-BOT-BC258388  Hemizonia Peter Rubtzoff 1973-8-27 7260 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC262967  Hemizonia Peter Rubtzoff 1956-9-16 2927 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC268124  Hemizonia Peter Rubtzoff; Nancy Harrison 1974-9-7 7875 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  RSA800068  Hemizonia Peter Rubtzoff, Nancy Harrison 1974-9-7 7875 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  UCD166252  Hemizonia Peter Rubtzoff 1970-8-5 6302 Sonoma 5 miles north of Sears Point. 11 Comment
  CAS-BOT-BC305994  Hemizonia Peter Rubtzoff 1966-8-25 5803 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads Comment
  UC1199370  Hemizonia congesta Joseph P. Tracy 1933-9-9 13071 Sonoma Santa Rosa North Coast Ranges, Santa Rosa 60 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
  UCD168063  Hemizonia congesta James Neilson 1981-8-21 4062 Sonoma Mayacmas Mountains. Healdsberg-Geysers Rd ca. 2 mi. from foothills. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC306155  Hemizonia congesta subsp. clevelandii James I. McMurphy 1909-8-10 717 -A Sonoma About a mile west of Santa Rosa on road to Fulton Comment
  CAS-BOT-BC306160  Hemizonia congesta subsp. clevelandii James McMurphy 1908-9-27 s.n. Sonoma Between Fulton and Sebastopol Comment
  CAS-BOT-BC306226  Hemizonia congesta subsp. congesta John Thomas Howell; J. W. Stacey 1936-7-26 12672 Sonoma Pitkin Marsh, 5 miles n. of Sebastopol Comment
  JEPS87226  Hemizonia congesta subsp. congesta Jack and Betty Guggolz 1992-6-22 1326 Sonoma cattle pasture se Knowles Corner 36 Comment
  SDSU4572  Hemizonia congesta subsp. congesta D. F. Howe 1962-7-29 3364 Sonoma 4.3 miles north of Jenner on #1. 122 Comment
  SD53369  Hemizonia congesta subsp. congesta Darley F. Howe 1962-7-28 3358 Sonoma 6.3 miles east of Marin -Sonoma County line of Highway 37. Comment
Read comments
Sep 10 2008
  CAS-BOT-BC309674  Hemizonia congesta subsp. lutescens J. McMurphy 1909-8-8 s.n. Sonoma Leddy Station, between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC309684  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-8-31 11567 Sonoma Adobe Road and Casa Grande Road near Petaluma Comment
  CAS-BOT-BC309694  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-9 714 -B Sonoma 4-1/2 mi. S of Santa Rosa Comment
  CAS-BOT-BC309712  Hemizonia congesta subsp. lutescens Catherine Best 1981-6-5 s.n. Sonoma Hwy. 1, one mile north of Jenner Comment
  UC1301039  Hemizonia congesta subsp. lutescens Helen K. Sharsmith 1963-5-25 5484 Sonoma 152 Comment
  UC197516  Hemizonia congesta subsp. lutescens H. M. Hall 1916-7-23 10246 b Sonoma 14 mi nw Petaluma (2 mi e of Tocaloma) Comment
  CAS-BOT-BC309945  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-8-26 64064 Sonoma 6.5 miles ne. of Penngrove 426 Comment
  OBI16230  Hemizonia congesta subsp. luzulifolia Robert F. Hoover 1966-8-23 9918 Sonoma Mark West Creek, on Santa Rosa-Calistoga Rd near jctn of St Helena Rd Comment
  RSA169312  Hemizonia luzulifolia L. S. Rose 1964-8-26 64064 Sonoma 6.5 miles NE of Penngrove. 427 Comment
  SEINET11841731  Hemizonia luzulifolia W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4755 Sonoma The Cedars, near Cazadero on Twitchell Ranch 229 Comment
  UC990611  Hemizonia luzulifolia subsp. luzulifolia James I. McMurphy 1909-8-8 706 Sonoma Sonoma Comment
  RSA0028848  Hemizonia multicaulis subsp. vernalis Roxana S. Ferris, Laura Lorraine 1961-6-14 13546 Sonoma Junction of Occidental Road with Facendini Lane Comment
  CAS-BOT-BC310213  Hesperevax sparsiflora var. sparsiflora John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54004 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  SD40697  Hesperocyparis sargentii Carl B. Wolf, E. R. Johnson 1934-10-13 Sonoma 2 miles from Occidental, Coys Ranch 89 Comment
  JEPS128296  Hesperolinon micranthum Roger Raiche 2010-6-26 029 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1212254  Hesperolinon micranthum Helen K. Sharsmith 1952-6-17 4124 Sonoma Trinity road nw Mount Veeder; Inner North Coast Ranges 457 Comment
  UC1212379  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-18 4132 Sonoma near Pine Flat-Middletown road crossing (above Big Sulphur Creek); Inner North Coast Ranges, Mayacamas Range 762 Comment
  UCD95454  Hesperomecon linearis P. G. Connors 1992-5-14 256 Sonoma Bodega Marine Laboratory. On north slope of old dune. Comment
  CAS-BOT-BC311161  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-13 5342 Sonoma Black Point Road Comment
  RSA0063138  Heuchera micrantha var. hartwegii Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  RSA0063143  Heuchera micrantha var. hartwegii Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  CAS-BOT-BC424436  Heuchera pilosissima H. D. Ripley; R. C. Barneby 1945-6-22 6946 Sonoma Wright's Beach 50 Comment
  SEINET12216686  Heuchera pilosissima F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -153 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  SEINET195012  Heuchera pilosissima A. A. Heller 1938-5-14 15085 Sonoma Near S end of Bodega Bay Comment
  UCSB2552  Heuchera pilosissima Keator, Glenn 1959-4-1 Sonoma 1.5 miles north of Fort Ross Monument on Highway 1 Comment
  UCD160127  Hieracium albiflorum James A. Neilson Jr. 1973-6-6 3559 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
  UC479115  Hoita macrostachya Marcus E. Jones, A. M. 1931-7-5 28969 Sonoma w Cloverdale Comment
  POM252698  Hoita macrostachya Michener, Bioletti 1893-7-31 2504 Sonoma Adobe Canyon Comment
  SEINET4461157 Image available Hoita villosa A. A. Heller 1902-1 5761 Sonoma Comment
  CAS-BOT-BC280785  Holcus lanatus John Thomas Howell; Walter Knight; Irja Knight 1987-6-4 6230 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC280795  Holcus lanatus Peter Rubtzoff 1951-6-16 244 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  UC573681  Holcus lanatus H. S. Yates 1936-5-16 5595 Sonoma 2 mi se Forestville (<Pitkin Marsh>); Sebastopol Quad. Comment
  CAS-BOT-BC376282  Holocarpha virgata Greg de Nevers 1995-9-30 10774 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  CAS-BOT-BC320404  Holocarpha virgata James I. McMurphy 1906-7-17 s.n. Sonoma Fulton Comment
  RSA81670  Holocarpha virgata subsp. virgata James I. McMurphy 1906-7-17 s.n. Sonoma Fulton. Comment
  JEPS120286  Holodiscus dumosus var. cedrorum Barbara Ertter with R. Raiche, J. Shevock, R. Bittman, et al. 1994-6-23 12850 Sonoma The Cedars serpentine area at head of Big Austin Creek N of Cazadero, ca 20 airmiles due W of Healdsburg, along south side of creek Comment
  JEPS128298  Holodiscus dumosus var. cedrorum Roger Raiche 2010-6-16 022 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCR280161  Holozonia filipes Peter Rubtzoff, Nancy Harrison 1976-6-18 8646 Sonoma North Coast Range, False Lake Meadow area, Annadel State Park 221 Comment
  CAS-BOT-BC315811  Holozonia filipes James I. McMurphy 1906-7-21 s.n. Sonoma Fulton Comment
  UCD85403  Hordeum brachyantherum Hursh 1919-5-13 X 3244 Sonoma Santa Rosa. Comment
  UCD147291  Hordeum brachyantherum subsp. brachyantherum Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-6 304 Sonoma Todd Road Ecological Reserve, W of Highway 101, N of Todd Road. Pool #TOD001. UTMs 10S0519445; 4248904. Comment
  UCD81357  Hordeum marinum subsp. gussoneanum Frederica Bowcutt; Jolie Hendricks, Jeff Kennedy 1994-5-1 1791 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
  RSA128787  Hordeum murinum subsp. glaucum P. H. Raven 1950-4-6 1561 Sonoma Cotati to Santa Rosa. 30 Comment
  RSA128792  Hordeum vulgare P. H. Raven 1950-4-6 1556 Sonoma Cotati to Santa Rosa. 30 Comment
  UC903144  Horkelia californica Ethel Crum 1930-7-27 818 Sonoma n Fort Ross; North Coast Ranges Comment
  CAS-BOT-BC536157  Horkelia californica John Thomas Howell 1930-6-8 5279 Sonoma 8 miles north of Bodega Bay Comment
  JEPS86763  Horkelia tenuiloba Jack and Betty Guggolz 1990-7-1 1082 Sonoma about 2 1/4 mi nne Graton; CNPS Vine Hill Preserve 76 Comment
  UC75491  Horkelia tenuiloba Milo S. Baker May 1899 Sonoma near the Laguna (Forestville Rd); Forestville Comment
  SD88314  Hosackia gracilis Darley F. Howe 1972-5-4 Sonoma 6.0 miles east of Highway 1 on road to Annapolis. Comment
  UC70368  Hydrocotyle verticillata Milo S. Baker 1898-1 Sonoma near Santa Rosa Comment
  CAS-BOT-BC400996  Hypericum anagalloides Peter Rubtzoff 1951-6-16 226 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  CAS-BOT-BC401001  Hypericum anagalloides Peter Rubtzoff 1958-8-23 3903 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Road) Comment
  SEINET7062821  Hypericum anagalloides A. G. Vestal 1937-6-18 s.n. Sonoma Stewarts Point. UTM Zone 10, 464491mE, 4278527mN. (WGS84/NAD83). 0 Comment
  SD7537  Hypericum anagalloides Glen Ellen July 1891 432 a Sonoma Comment
  RSA0009747  Hypochaeris glabra Marcus E. Jones 1931-7-5 29093 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC316717  Hypochaeris radicata John H. Thomas 1976-6-16 18270 Sonoma Southern part of Sea Ranch, northwestern part of county about 7 miles south of Gualala 30 Comment
  RSA0065196  Ipomoea mutabilis Greg de Nevers 1996-11-10 10893 Sonoma Santa Rosa, Sonoma Avenue. 31 Comment
  SEINET3875269  Iris douglasiana Janet McIntosh 1966-4-27 24 Sonoma Ca. 1000 feet from shore; State Highway 1, 5 miles North of Jenner, Sonoma County, California.; 0 Comment
  SJSU10186  Iris douglasiana T. A. Wayne III 1962-4-7 Sonoma by Valley Ford Rd c. 1/3 the distance between Salmon Creek & Bodega Bay 60 Comment
  RSA261388  Iris fernaldii Johann D. Watjen 1969-4-27 22 Sonoma Adobe Canyon, 3 miles east of Highway 12, 11 miles north of Sonoma Comment
  UCD55146  Iris macrosiphon Ellen Dean; Tammie Beyerl 2006-4-28 3028 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Hills to the east, near center of property. 254 Comment
  SEINET3876028  Iris macrosiphon James L. Reveal 1988-6-1 6975 Sonoma Along Geysers Road, 13.2 miles north of California Highway 128 and 14.8 miles east of US highway 101, 0.8 mile South of the turnoff to Geyers Resort, about 16.5 miles east of Cloverdale.; 0 640 Comment
  RSA135849  Iris purdyi E. K. Balls, Lee W. Lenz 1951-5-10 16538 Sonoma 0.7 miles south of Mendocino-Sonoma County line on Highway 28 Comment
  CAS-BOT-BC376406  Isoetes Greg de Nevers 1997-5-30 11010 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Three Tree Hill. 400 Comment
  RSA784488  Isoetes Peter Rubtzoff 1969-5-24 6058 Sonoma 6.5 miles SE of Penngrove, on Lichan Road. 427 Comment
  CAS-BOT-BC368083  Isoetes howellii Greg de Nevers 1998-4-28 11209 Sonoma Cresta Ranch, Cresta Road east of Mark West Lodge Comment
  SEINET10794085  Isoetes howellii Wayne Roderick Roderick s.n. Sonoma In a vernal pool, in the Sonoma Mountains east of Cotati, on the Rivers Ranch. 305 Comment
  CAS-BOT-BC112416  Isolepis carinata Peter Rubtzoff 1963-5-26 5140 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC112566  Isolepis cernua Peter Rubtzoff 1960-6-9 4485 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  UCD166263  Juglans Peter Rubtzoff 1970-8-31 6348 Sonoma 5.5 miles East of Guerneville, along Russian River at Forest Hills. Comment
  UCD161825  Juncus James A. Neilson Jr. 1975-5-23 3197 Sonoma Abril property, Big Sulphur Creek. (Exact location unkown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC164643  Juncus Peter Rubtzoff 1964-7-29 5456 Sonoma Duncans Mills Marsh. Comment
  RSA790896  Juncus Peter Rubtzoff 1968-6-25 5903 Sonoma Lichan Marsh. Comment
Read comments
Apr 16 2014
  CAS-BOT-BC164383  Juncus balticus subsp. ater Peter Rubtzoff 1970-5-16 6225 Sonoma Sonoma: Five miles north of Sears Point Comment
  CDA37961  Juncus bolanderi D. G. Kelch, Troy McGregor 2010-8-22 10 .339 Sonoma Geyser Peak Rd. Comment
  UC1057463  Juncus bufonius G. Thomas Robbins 1937-5-23 195 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch, Vine Hill region) 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
  UCD141394  Juncus bufonius Gerry North 1993-4 14 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 first pullout on right after Goodspeed trailhead. Less than 0.2 mile east of park entrance gate. 228 Comment
  CDA31034  Juncus effusus D. G. Kelch, Troy McGregor 2010-8-22 10 .338 Sonoma Geyser Peak Rd. Comment
  CAS-BOT-BC157999  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5903 Sonoma Lichan Marsh Comment
  UCR244616  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-7-13 5920 Sonoma Upper Salmon Creek Marsh Comment
  SD262153  Juncus effusus var. pacificus Peter Rubtzoff 1959-6-20 4177 Sonoma Willow Creek Marsh (Duncan Hills 7.5'Q) 9 Comment
  CHSC8230  Juncus ensifolius J. G. Moore 1969-5-10 139 Sonoma 8 mi. s of Stewarts Point. On e side of Hwy. 1. 30 Comment
  CAS-BOT-BC245808  Juncus hemiendytus var. hemiendytus Alice Eastwood; John Thomas Howell 1940-5-5 7865 Sonoma Summit of Bennett Valley Road Comment
  CAS-BOT-BC157998  Juncus hesperius Peter Rubtzoff 1959-6-20 4178 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC329266  Juncus lescurii Peter Rubtzoff 1955-8-20 2068 Sonoma Bodega Harbor Marsh. Comment
  RSA0019005  Juncus lescurii Peter Rubtzoff 1954-8-9 1665 Sonoma Bodega Head Marsh. Comment
  RSA94317  Juncus mexicanus Peter Rubtzoff 1951-9-2 717 Sonoma Pitkin Marsh, near Forestville. South of the Upper Marsh. Comment
  RSA128807  Juncus occidentalis Peter H. Raven 1950-4-23 1914 Sonoma Solne Vista. 152 Comment
  UCD141648  Juncus occidentalis M. Wiesendanger 1927-5-5 713 Sonoma Sonoma. Comment
  SEINET10533400  Juncus oxymeris Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-9 Conrad 7081 Sonoma On n-facing grassy clay bank, .6 mile w of sonoma-napa county line on hwy. 121. 61 Comment
  POM110915  Juncus patens Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  UC143757  Juncus patens A. A. Heller 1902-6-10 5680 Sonoma Santa Rosa Comment
  UCR130525  Juncus patens 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
  UCD142832  Juncus xiphioides Frederica Bowcutt 1994-6-24 1895 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. Vista Trail about 1/4 way from bald Mountain Trail to Headwaters Trail. 554 Comment
  RSA0023016  Kickxia Peter Rubtzoff 1973-8-20 7228 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCR248905  Kickxia elatine Peter Rubtzoff 1970-7-11 6281 Sonoma Laguna de Santa Rosa northwest of Trenton, at Healdsburg Road crossing 61 Comment
  SEINET12327556  Kickxia elatine W. Knight, Knight, I.; Edwards, S. W. 1984-1 5044 Sonoma Willow Creek between Denman Flat & Corona Rd, near Petaluma Comment
  CAS-BOT-BC350941  Koeleria Peter Rubtzoff 1964-6-6 5357 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  UCD160309  Koeleria macrantha James A. Neilson Jr. 1975-5-23 3218 Sonoma Truit Creek on Big Sulphur Creek. Abril property. (Elevation and coordinates estimated by label maker.) 388 Comment
  SEINET11688012  Koeleria macrantha F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -232 Sonoma end of Stoetz Road 200 Comment
  CAS-BOT-BC273787  Koeleria pyramidata G. DeNevers 1981-5-23 1289 Sonoma Pepperwood Ranch. Lower Pepperwood entrance Comment
  CAS-BOT-BC166951  Lagophylla Peter Rubtzoff 1975-8-26 8359 Sonoma Bennett Mountain Lake. Comment
  CDA2216  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Stewart s ( Steward ) Point Comment
  UCD63273  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Steward Point. Comment
  UCD151151  Lamarckia aurea James A. Neilson Jr. 1973-6-7 2963 Sonoma Mayacmas Mountains. The Geysers. Big Geysers. Site IV-G. (Elevation and exact location estimated by label maker.) 441 Comment
  UCD36536  Lamarckia aurea Beecher Crampton 1954-4-26 1793 Sonoma Sonoma County, at border with Mendocino County, 3 miles north of Cloverdale, along U.S. Highway 101. Comment
  UC66154  Lamium amplexicaule A. A. Heller 1902-6-7 5658 Sonoma Santa Rosa Comment
  JEPS86815  Lamium purpureum Jack and Betty Guggolz 1991-5-14 1133 Sonoma s of Lone Pine Road (w of Hwy 116) 27 Comment
  CDA28919  Lamium purpureum C. Morgan 2009-3-19 s.n. Sonoma Kenwood, 9550 Frederica. 0 Comment
  UC353935  Lasthenia burkei Milo S. Baker 1928-4-16 2973 d Sonoma Hi<gh>way a few mi n of Winsor Comment
  UCR258101  Lasthenia burkei Mark A. Elvin 1997-5-7 398 Sonoma Central Western; Outer North Coast Ranges, west side of RR track north of San Miguel Ave., NW of Santa Rosa 43 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
  UC893741  Lasthenia californica subsp. bakeri Milo S. Baker 1932-4-25 5958 Sonoma one mi e Bodega Bay Comment
  UCD133664  Lasthenia californica subsp. californica Mary M. Hektner; Cathy Hendel 1974-7-2 102 Sonoma Near State Highway 1, Sea Ranch, Unit 28 Owner's Map. Comment
  JEPS86752  Lasthenia californica subsp. californica Jack and Betty Guggolz 1990-4-30 1039 Sonoma 243 Comment
  CAS-BOT-BC324413  Lasthenia californica subsp. macrantha Mrs. H. C. Cantelow 1936-1-26 1102 Sonoma Bodega Bay Comment
  SEINET11447679 Image available Lasthenia californica subsp. macrantha K. Brandegee 1905-6-27 s.n. Sonoma Near Bodega Bay Comment
  CAS-BOT-BC355536  Lasthenia glaberrima J. Penalosa 1961-5-24 1601 Sonoma Upper Stemple Creek Marsh Comment
  UC33079  Lasthenia glaberrima H. N. Bolander 1864-1 3981 Sonoma Mark West Creek Comment
  CAS-BOT-BC370894  Lasthenia minor Alice Eastwood 1915-6-29 4837 Sonoma Bodega Point Comment
  CAS-BOT-BC164693  Lathyrus Peter Rubtzoff 1974-9-7 7862 Sonoma Hinebaugh Creek, Rohnert Park; west of Commerce Blvd. crossing. Comment
  UCD165121  Lathyrus Peter Rubtzoff 1974-4-17 7363 Sonoma Upper Green Valley Marsh area. Comment
  UCD166119  Lathyrus Peter Rubtzoff 1972-5-25 6769 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC204993  Lathyrus jepsonii var. californicus Alice Eastwood; John Thomas Howell 1936-5-19 2523 Sonoma 2 miles n. of Windsor Comment
  UC33397  Lathyrus jepsonii var. californicus W. C. Blasdale Jun 1894 Sonoma Santa Rosa Comment
  UC699623  Lathyrus littoralis F. W. Hoffman 1943-6-7 Sonoma Guerneville Comment
  UCR255451  Lathyrus palustris Ann Howald 2014-5-16 3004 Sonoma North Coast, lowest coastal terrace, c. 1.5 mi southeast of Del Mar Point 21 Comment
  UCD55070  Lathyrus sphaericus Ellen Dean; Tammie Beyerl 2006-4-28 3014 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 177 Comment
  UCD33238  Lathyrus tingitanus Beecher Crampton 1967-5-15 7934 Sonoma Sonoma County, 1 mile N.E. of Cloverdale, US Hwy. 101. Comment
  HSC100959  Lathyrus torreyi Peter Warner, Sarah Gordon 2011-5-16 198 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), Fern Trail along lower to mid-Mill Creek. 273 Comment
  NY15643  Lathyrus venosus var. californicus J. Torrey 1865-1 Sonoma Sonoma Valley Comment
  RSA12254  Lathyrus vestitus subsp. bolanderi Carl B. Wolf 1934-6-29 5799 Sonoma 6/10 of a mile inland from Stewarts Point. 61 Comment
  POM29620  Lathyrus vestitus subsp. vestitus Marcus E. Jones 1882-7-17 3576 Sonoma Duncan's Mills. Comment
  UC15379  Lathyrus vestitus var. vestitus State Survey 1862-4-18 966 Sonoma near Sonoma Comment
Read comments
Jan 20 2011
  UC192961  Lathyrus vestitus var. vestitus J. W. Congdon 1892-5-30 Sonoma Cazadero Comment
  UCR244751  Layia Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  UC1537075  Layia chrysanthemoides Gordon H. True Jr. 1938-4-13 862 Sonoma near Sonoma 60 Comment
  UC913069  Layia chrysanthemoides David D. Keck 1933-5-28 2320 Sonoma 3.4 mi e Shellville (just e of intersection of Sonoma Road) Comment
  CAS-BOT-BC323234  Layia chrysanthemoides A. A. Heller; H. E. Brown 1902-4-23 5355 Sonoma Near Sonoma Comment
  SEINET5181835  Layia chrysanthemoides Unknown 1935-5-24 1090 Sonoma 6.2 mi S of Jenner Comment
  CAS-BOT-BC313745  Layia chrysanthemoides subsp. maritima J. Clausen 1935-5-24 1090 Sonoma 6.2 miles S of Jenner Comment
  SEINET3071642 Image available Layia chrysanthemoides subsp. maritima J. C. Clausen 1935-5-24 1090 Sonoma 6.2 mi. S. of Jenner Comment
  UC185672  Layia platyglossa Katharine Brandegee 1905-6-1 Sonoma Bodega Comment
  RSA0001366  Layia platyglossa Jens Clausen 1935-5-24 1094 Sonoma 6.5 miles S. of Jenner. Comment
  UC1120990  Ledum glandulosum H. S. Yates 1936-5-16 5592 Sonoma 2 mi se of Forestville 30 Comment
  SD260873  Leersia oryzoides Peter Rubtzoff 1973-9-4 7298 Sonoma Russian River at Forest Hills, 5.5 mi. E of Guerneville. In shallow water near the margin, in the open. Comment
  RSA785224  Lemna Peter Rubtzoff 1969-5-11 6049 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  UCD166221  Lemna Peter Rubtzoff 1970-5-30 6253 Sonoma 5 miles north of Sears Point. Comment
  UC971684  Lemna gibba Leo Koch 1940-6-12 1011 Sonoma 3 mi n of Santa Rosa (behind Fountaingrove Vineyard along Highway 101) Comment
  SEINET8715371 Image available Lemna gibba Leo Koch 1940-1 1011 Sonoma On surface of pond in hills behind Fountaingrove Vineyard three miles north of Santa Rosa along Highway 101. Comment
  CAS-BOT-BC173646  Lepidium Peter Rubtzoff 1962-9-30 5101 Sonoma Vacation Beach, 2 miles below Guerneville on Russian River bottoms Comment
  CAS-BOT-BC89146  Lepidium didymum Peter Rubtzoff 1987-10-17 9870 Sonoma Russian River at Forest Hills, 5.5 mile east of Guerneville, 9981 Old River Road near Forest Hills Road junction. Comment
  CAS-BOT-BC89151  Lepidium didymum Katharine Brandegee 1905-6-1 s.n. Sonoma Bodega. Comment
  RSA247447  Lepidium latifolium Peter Rubtzoff 1969-8-26 6158 Sonoma On River Road. 3 miles W of Fulton. Comment
  UCD115699  Lepidium latifolium John Thomas Howell 1966-6-2 41550 Sonoma South of Schellville near Black Pt. road. Comment
  CAS-BOT-BC12973  Lepidium strictum Catherine Best 1990-3-24 1361 Sonoma Northwest of Santa Rosa near Piner and Fulton. Comment
  UC72925  Lepidium virginicum var. pubescens Miss M. Alice King Apr 1897 Sonoma near Healdsburg Comment
  CAS-BOT-BC320566  Leptochloa Peter Rubtzoff 1965-8-16 5598 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  CAS-BOT-BC226546  Leptosiphon acicularis John Thomas Howell 1933-4-2 10932 Sonoma Sonoma Creek Canyon 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
  JEPS117109  Leptosiphon parviflorus Peter Warner 2010-5-12 148 Sonoma Jenner Headlands, in saddle meadow along Willig Extension Drive (main dirt road on property), 2.06 km past barn; E side of road, S edge of grassland along forest ecotone; on divide between upper SE Russian Gulch and NW Jenner Gulch watersheds Comment
  JEPS87254  Lessingia arachnoidea Jack and Betty Guggolz 1992-8-29 1336 Sonoma about 1 3/4 mi nw of Camp Meeker 146 Comment
  UC1299300  Lessingia hololeuca Freed W. Hoffman 1947-7-30 1414 Sonoma near Guerneville; North Coast Ranges, Great Eastern Quicksilver Mines Comment
  UC65346 Image available Lessingia ramulosa A. A. Heller 1902-8-18 6049 Sonoma Santa Rosa; ; Santa Rosa, Sonoma Co. Comment
  UC75905  Lessingia ramulosa Miss M. Alice King September 1896 Sonoma near Healdsburg Comment
  UCD61337  Leymus californicus Collector Unknown 1942-5-23 10198 Sonoma 2.5 miles W of Bodega town, turning right in town. Comment
  UCD64625  Leymus mollis P. G. Connors 1992-5-7 246 Sonoma near Mussel Point, overlooking Salmon Creek Beach. Comment
  UC648276  Ligusticum apiifolium Alice Eastwood and John Thomas Howell 1939-6-11 7409 Sonoma near Triniti P.O. (Hood Mt. Range); Hood Mt. Range Comment
  UCR255737  Ligusticum apiifolium Greg de Nevers 1998-7-15 11294 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa; Mark West Creek, just upstream of bridge at Mark West Lodge 134 Comment
  CAS-BOT-BC451705  Lilaea scilloides Greg de Nevers 1992-5-5 10142 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 475 Comment
  CAS-BOT-BC451703  Lilaea scilloides Peter H. Raven 1963-4-12 18162 Sonoma Along U. S. 101 just south of Asti. Comment
  SEINET12050381  Lilium maritimum F. H. Utech 1988-1 88 -218 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point, mile marker 38.39 75 Comment
  UC1051675  Lilium pardalinum Peter Kamb and Francia Chisaki 1950-6-16 1860 Sonoma nw of Sebastopol (Pitkin Marsh, 1 mi n of Sousa Corners); Pitkin Marsh Comment
  CHSC22062  Limnanthes douglasii Robert A. Schlising 1962-3-31 2109 Sonoma Coast Ranges. Field. Comment
  RSA215900  Limnanthes douglasii Peter Rubtzoff 1955-4-30 1788 Sonoma Stony Point Marsh. Comment
  SEINET12183756  Limnanthes douglasii W. Knight, Knight, I.; Johnson, B.; Edwards, S.; Edwards, J. 1990-1 6589 Sonoma Skyway Drive between Airport Drive and Shiloh Road Comment
  RSA262357  Limnanthes douglasii subsp. douglasii Lynn Gould 1962-4-20 57 Sonoma 1 mile east of Sonoma. 24 Comment
  SJSU10801  Limnanthes douglasii subsp. douglasii T. A. Wayne 1962-4-21 Sonoma Bennett Valley 3 mi SE of Sants Rosa Comment
  RSA0004098  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5699 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 mile from Llano Road. Comment
  UCD165771  Limosella Peter Rubtzoff 1973-8-27 7271 Sonoma Upper Green Valley Marsh area. Comment
  UCD166212  Limosella acaulis Peter Rubtzoff 1970-5-16 6220 Sonoma 5 miles north of Sears Point. Comment
  UC30171  Linanthus acicularis H. N. Bolander 1864-1 3853 Sonoma Russian River Bed Comment
  UC30163  Linanthus dichotomus W. H. Brewer 1862-4-18 969 Sonoma near Sonoma Comment
  UC1763994  Linanthus latisectus Douglas W. Schemske 1993-4-30 1 C Sonoma Pepperwood Ranch Natural Preserve Comment
  RSA800891  Lindernia dubia Peter Rubtzoff 2013-2-15 8357 Sonoma Bennet Mountain Lake, northern lakeshore. Comment
  CAS-BOT-BC290635  Linum Peter Rubtzoff 1974-6-2 7522 Sonoma Upper Green Valley Marsh. Comment
  POM316764  Linum angustifolium Patricia Wilder 1965-6-10 3635 Sonoma 1.0 mile N of Jenner on Calif. State Hwy 1. North Coast Mt. Range. 23 Comment
  JEPS70989  Linum grandiflorum Peter Rubtzoff 1972-4-23 6727 Sonoma 0.9 mi s Meacham Road junction with Stony Point Road (near Public Refuse Disposal Area road 0.25 mi w of Meacham Road junction) Comment
  CDA34809  Linum trigynum Peter Warner 2010-6-16 167 Sonoma Jenner Headlands, Knoll Field, 203 m, S244 deg. W of residence house. Comment
  UC1076091  Lithocarpus densiflorus Herbert L. Mason 1928-4-8 4296 Sonoma 2 mi n Ft. Ross (coast) Comment
  UC1011107  Lithocarpus densiflorus Milo S. Baker 1941-8-4 8593 Sonoma 457 Comment
  CAS-BOT-BC36014  Lithocarpus densiflorus var. densiflorus H. E. McMinn 1922-6-7 191 Sonoma Redwoods near Monte Rio Comment
  CAS-BOT-BC36011  Lithocarpus densiflorus var. densiflorus Mary Rhyne; Mary P. Wells; John Madison 1985-11-4 701 Sonoma ca. 3/4 mile south of the Gualala River Comment
  UC1127213  Lithophragma affine E. Armstrong 1934-3-26 934 Sonoma 2 mi w Camp Meeker; Sebastopol Quadrangle 91 Comment
  CAS-BOT-BC437153  Lithophragma heterophyllum J. W. Congdon 1883-4-1 19 Sonoma Petaluma Santa Rosa Comment
  SJSU10360  Lithophragma heterophyllum T. A. Wayne III 1962-4-21 Sonoma 3 mi S of Santa Rosa through Bennett Valley Comment
  CAS-BOT-BC342501  Logfia gallica Peter Rubtzoff 1952-6-3 1168 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC283283  Lolium multiflorum John Thomas Howell; et al. 1981-5-14 53951 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  UCSC000076  Lolium multiflorum H. S. Yates 1937-5-30 6551 Sonoma 1.5 miles E. of Occidental - Sebastopol 91 Comment
  CAS-BOT-BC283293  Lolium multiflorum David L. Morgan 1961-5-17 s.n. Sonoma Watkins Ranch, 0.25 mile NW of Penngrove Comment
  JEPS25142  Lomatium nudicaule G. Thomas Robbins 1959-5-16 4012 Sonoma s.w. outskirts El Verano (Sonoma Valley); Sonoma Valley 30 Comment
  RSA177956  Lomatium repostum R. F. Thorne 1965-4-20 343226 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  UCD144574  Lomatium repostum Frederica Bowcutt 1994-6-25 1922 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. Brushy Peaks Trail about 1/4 mi E from Gray Pine Trail. 670 Comment
  UCD137325  Lonicera hispidula C. Wistrom 1996-5-26 27 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  UCD137330  Lonicera hispidula Mrs. C. Dresel 1927-9-1 816 Sonoma Exact location unknown. Comment
  JEPS12837  Lonicera hispidula var. vacillans M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma near Guerneville; Russian River Comment
  UCD137392  Lonicera involucrata P. B. Kennedy 1915-5-31 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC244002  Lonicera involucrata var. ledebourii A. A. Heller 1902-6-11 5690 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  CAS-BOT-BC198582  Lotus Peter Rubtzoff; Nancy Harrison 1974-9-7 7870 Sonoma Creek bed west of Commerce Blvd. crossing, Hinebaugh Creek in Rohnert Park Comment
  CAS-BOT-BC200970  Lotus Peter Rubtzoff 1983-8-28 9682 Sonoma Austin Creek ca. 0.5 mile north of Hwy 116 on Cazadero Road Comment
  POM316662  Lotus angustissimus Patricia Wilder 1965-6-10 3633 Sonoma 1.0 mile N of Jenner on Calif. state Hwy 1. 46 Comment
  UC80808  Lotus heermannii Alice Eastwood 1899-6-9 Sonoma Bodega Point Comment
  UCR44916  Lotus humistratus L. F. LaPre 1986-5-31 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  POM27250  Lotus humistratus Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan[s] Mills. Comment
  UC1300860  Lotus micranthus Helen K. Sharsmith 1963-5-25 5475 Sonoma from Freestone to Occidental; San Francisco Bay Region 121 Comment
  UC353803  Lotus oblongifolius var. oblongifolius Milo S. Baker 1928-4-28 3008 a Sonoma Pitkin Swamp Comment
  SD62044  Lotus pedunculatus Darley F. Howe 1965-8-3 4102 Sonoma 8 miles east of Bodega Bay on Hwy 1 Comment
  SEINET3523773 Image available Lotus purshianus Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15122 Sonoma Roadside, 2 miles N of Kellogg Comment
  JEPS55882  Lotus stipularis var. stipularis P. B. Kennedy ca. 1914 Sonoma Del Mar Comment
  UC907562  Lotus tenuis Freed Hoffman 1948-8-12 Sonoma headwaters of Warm Springs Creek Warm Springs Creek 533 Comment
  SDSU4356  Lotus uliginosus D. F. Howe 1965-8-3 4102 Sonoma 8 miles east of Bodega Bay on #1. Comment
  CDA36840  Lotus wrangelianus 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
  UC15702  Lotus wrangelianus Harley P. Chandler 1900-5-25 719 Sonoma Bodega Bay Comment
  UC1745892  Lotus wrangelianus Annetta M. Carter, Edward Lee 1936-6-21 1199 Sonoma 2.2 mi. inland from Bodega Bay on road to Bodega. Comment
  UCD66028  Ludwigia hexapetala B. J. Grewell 2006-8-25 06- 53 -LU Sonoma Laguna de Santa Rosa tributary to Russian River at Gallo's Laguna Ranch, downstream of Guerneville Rd Bridge/gaging stn. East of Hwy 116, Sebastopol across channel from Laguna Wastewater Treatment Delta Pond discharge. 16 Comment
  UCD78331  Ludwigia hexapetala B. J. Grewell 2005-11-21 05- 45 -LU Sonoma Local tributary to Mark West Creek, n. side River Road, Santa Rosa across rd. from Martinelli Winery. Within Laguna de Santa Rosa sub-basin of the Russian River Watershed. 28 Comment
Read comments
Aug 10 2011
  CAS-BOT-BC258913  Ludwigia palustris Peter Rubtzoff 1969-8-24 6149 Sonoma Pond on River Road, 3 miles west of Fulton. Comment
  CAS-BOT-BC376292  Ludwigia palustris Greg de Nevers 1992-6-26 10206 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In oxbow of Franz Creek 91 Comment
  RSA800588  Ludwigia palustris Peter Rubtzoff 1958-8-9 3858 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  UC73309  Ludwigia palustris Miss M. Alice King Sept. 1896 Sonoma near Healdsburg Comment
  RSA800126  Ludwigia palustris Peter Rubtzoff 1969-8-24 6149 Sonoma Pond on River Road, 3 miles west of Fulton. Comment
  CAS-BOT-BC173514  Ludwigia peploides Peter Rubtzoff 1955-7-9 1937 Sonoma Forestville Marsh Comment
  CAS-BOT-BC157979  Ludwigia peploides Peter Rubtzoff 1958-9-6 3969 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road) Comment
  CAS-BOT-BC164056  Ludwigia peploides Peter Rubtzoff 1956-9-15 2911 Sonoma Atascadero Creek Marsh Comment
  SJSU393  Ludwigia peploides A. W. Jacobs 1938-6-15 Sonoma Russian R near Hilton Comment
  SEINET10488401  Lupinus albifrons Charles Piper Smith 1948-4-27 Smith 48163 Sonoma Junction melitta-mark west-petrified forest roads. Petrified forest, junction Comment
  SEINET12164398  Lupinus albifrons F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -104 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  UC157780  Lupinus albifrons H. P. Chandler 1907-4-21 7530 Sonoma road from Glen Ellen to Oakville; rd fr Glen Ellen to Oakville Comment
  CAS-BOT-BC195972  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-27 48163 Sonoma Junction Melitta-Mark West-Petrified Forest roads. Petrified Forest, junction Comment
  CAS-BOT-BC195982  Lupinus albifrons var. albifrons Charles Piper Smith 1908-4-3 1392 Sonoma Forestville, 3 mi. west along Guerneville road Comment
  POM299302  Lupinus arboreus var. eximius H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, State Highway 1. Comment
  CDA27407  Lupinus bicolor G. D. Barbe, T. C. Fuller 1985-3-28 4197 Sonoma 6560 Sonoma Mountain Road, south of Santa Rosa. Comment
  RSA413559  Lupinus densiflorus var. densiflorus Lester Rowntree 1931-7-13 s.n. Sonoma Road between Bay and Bodya. Comment
  UC1482882  Lupinus formosus D. B. Dunn, Conrad and LeDoux 1973-6-9 20712 Sonoma on 116, 5.3 mi e Jct of Hwy 101 and Hwy 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
  SD255743  Lupinus latifolius Ann Howald 2015-4-1 3335 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 17 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 259 Comment
  SEINET12164395  Lupinus latifolius F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -084 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  UC479108  Lupinus luteolus Marcus E. Jones, A. M. 1931-7-5 28954 Sonoma The Geysers Comment
  UC15953  Lupinus microcarpus var. microcarpus Harley P. Chandler 1900-5-25 686 Sonoma Bodega Comment
  UCD108851  Lupinus microcarpus var. microcarpus Freed W. Hoffman 1947-4-18 664 Sonoma roadside one mile north of Cloverdale. Comment
  SD130431  Lupinus nanus F. Almeda, G. DeNevers 1981-3-30 4887 Sonoma Pepperwood Ranch; summit and east-facing slope of Three Tree Hill. Comment
  SEINET5558926  Lupinus nanus H. S. Gentry 1962-1 19702 Sonoma Oakville. Comment
  UCD108930  Lupinus nanus Botany 102 Students 1993-5-8 232 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 Meadow Creek. 396 Comment
  SEINET12165155  Lupinus polycarpus W. Knight, Kinight, I.; DrEdwards, S. 1986-1 5337 Sonoma Geyser Peak - access from Healdsburg-Geysers Rd 853 Comment
  CAS-BOT-BC376259  Lupinus sericatus Greg de Nevers 1996-5-31 10821 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Oak Hill Ranch, Devil's Kitchen 487 Comment
  UCD109522  Lupinus sericatus Roger Raiche 1984-3-25 RR 40074 Sonoma Kelly Road just west of its intersection with Rockpile Road. 609 Comment
  SEINET12165051  Lupinus sericatus Unknown 1984-1 RR 40074 Sonoma Kelly Rd just W of its intersection w/ Rockpile Rd 610 Comment
  HSC34850  Lupinus succulentus Thomas W. Nelson 1975-5-8 1811 Sonoma Beside Hwy. 101 just S of Ash Creek near the Mendocino-Sonoma Co. line Comment
  UC909758  Lupinus succulentus Milo S. Baker Apr 1950 12159 Sonoma w of Mellita Comment
  JEPS83726  Lupinus tidestromii R. Raiche 1988-4-10 80068 Sonoma Goat Rock State Park mouth of the Russian River (dune area nr parking lot at mouth of the Russian River); , Goat Rock State Park 4 Comment
  CDA27598  Lupinus variicolor T. C. Fuller 1967-5-19 15883 Sonoma At the entrance of Doran Park on the Coast Highway (Highway 1), 1 mile south of the town of Bodega Bay. 0 Comment
  CAS-BOT-BC210068  Luzula Peter Rubtzoff 1951-9-3 741 Sonoma Guerneville, Vacation Beach, Russian River Comment
  CAS-BOT-BC210028  Luzula Peter Rubtzoff 1962-5-11 4818 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) Comment
  SEINET7075563  Luzula comosa 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
  CAS-BOT-BC441392  Luzula subsessilis Peter Rubtzoff 1953-5-17 1373 Sonoma Vacation Beach, near Guerneville Comment
  UCR218644  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2010-6-4 16209 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
  RSA0015992  Lythrum hyssopifolia A. A. Heller 1902-6-7 5656 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  RSA0015993  Lythrum hyssopifolia Peter Rubtzoff 1958-7-20 3784 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road). Comment
  RSA0015994  Lythrum hyssopifolia Peter Rubtzoff 1958-7-19 3775 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  RSA0015995  Lythrum hyssopifolia Peter Rubtzoff 1956-9-15 2904 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC227610  Madia Peter Rubtzoff 1974-5-18 7415 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC342618  Madia anomala Karl H. Rechinger; J. T. Howell 1953-4-12 s.n. Sonoma Hills north of Sonoma Comment
  CAS-BOT-BC342619  Madia anomala G. DeNevers 1981-4-20 765 Sonoma Pepperwood Ranch. Pippindale farm. On bench between Studio and the ridge top Comment
  CAS-BOT-BC344050  Madia elegans John Thomas Howell 1930-7-13 5341 Sonoma Black Point Road Comment
  HSC100974  Madia elegans Peter Warner 2011-8-10 225 Sonoma Jenner Headlands Property, Upper Russian Gulch Pasture, N of power line overcrossing. 227 Comment
  CAS-BOT-BC343446  Madia gracilis Peter Rubtzoff 1952-6-3 1171 Sonoma Fitch Mtn. Grove, near Healdsburg Comment
  SEINET3148102  Madia gracilis L. S. Rose 1940-5-22 40370 Sonoma Sonoma 30 Comment
  HSC100964  Madia gracilis Peter Warner 2011-5-28 203 Sonoma Cresta Ranch (Sonoma Co. Ag. Preservation and Open Space Dist. Property; off Mark West Springs Rd. at Mark West Lodge), upslope S from Cresta Rd., near western property boundary. 0 Comment
  UCR198240  Madia madioides Dean Kelch, A. G. Murdock, Ben Carter 2007-5-13 07 .276 Sonoma Cavesdale Road 518 Comment
  CAS-BOT-BC345213  Madia sativa Alice Eastwood; John Thomas Howell 1936-7-4 3825 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC345207  Madia sativa James I. McMurphy 1909-8-8 702 Sonoma Leddy, electric r.r. station between Santa Rosa & Sebastopol Comment
  UCD132831  Madia sativa Frederica Bowcutt 1997-7-19 2199 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Franscio, 10 air miles E of Santa Rosa, 0.5 air miles SSE of Red Mountain, 0.1 air mile ENE of confluence of the Malm Fork and Sonora Creek. Along Meadow Trail E. of Gray Pine Trailhead and N. of Sonora Creek. Downstream of culvert under trail. 411 Comment
  SEINET12052825  Maianthemum stellatum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -51 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC511497  Maianthemum stellatum Volney Rattan 1880-1-1 s.n. Sonoma Healdsburg Comment
  RSA155501  Maianthemum stellatum Lewis S. Rose 1952-4-18 62025 Sonoma Laguna de Santa Rosa, 2 miles northeast of Graton 30 Comment
  CAS-BOT-BC347364  Malacothrix floccifera Marcus E. Jones 1931-8-3 29094 Sonoma Cloverdale Comment
  CAS-BOT-BC540134  Malus domestica Peter Rubtzoff 1955-4-9 1771 Sonoma Forested slope near Occidental-Graton Road, 1/4 mile northest of Occidential-Camp Meeker Road (Occidental region). Comment
  HSC7018  Marah fabacea F. Demostene 1966-4-1 3 Sonoma 2 mi. E of Healdsburg Comment
  UCD107560  Marah oregana M. Wiesendanger 1927-5-5 726 Sonoma Kenwood Springs. Comment
  CAS-BOT-BC271126  Melica aristata L. S. Smith 1925-6-9 49340 Sonoma In 1924 burn top of hill est of Bloom, Tahoe Forest 1219 Comment
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May 7 2019
  UCD87217  Melica californica R. Tofsrud 1947-6-17 195 Sonoma Old Santa Rosa cemetery. Comment
  UCD87314  Melica geyeri Virginia Bufford 1937-5-10 454 Sonoma Larkspur Rock, Bodega Canyon. Comment
  CAS-BOT-BC281280  Melica geyeri David L. Morgan 1961-4-17 s.n. Sonoma On Bohemian Highway, 3 miles N of Occidental Comment
  CAS-BOT-BC262452  Melica subulata Peter Rubtzoff 1959-6-6 4104 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC262561  Melica torreyana Peter Rubtzoff 1953-5-17 1381 Sonoma Near road from Vacation Beach to Edendale, near Guerneville Comment
  RSA184996  Melica torreyana L. S. Rose 1965-4-4 s.n. Sonoma 1 mile north of Sonoma. 61 Comment
  UC1146593  Melica torreyana Freed W. Hoffman 1947-5-30 1701 Sonoma Austin Creek Layton Mine; North Coast Ranges, Austin Creek Comment
  CAS-BOT-BC262568  Melica torreyana David L. Morgan 1961-4-15 s.n. Sonoma On the Bohemian Highway, 3 mi. N. of Occidental 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
  UCR218736  Melilotus indicus George K. Helmkamp, E. A. Helmkamp 2010-6-4 16223 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
  UCSC000404  Melilotus indicus Merle Randall 1930-7-10 s.n. Sonoma Shore, Jenner to Fort Ross Comment
  UCR279859  Melissa officinalis Peter Rubtzoff 1965-9-5 5639 Sonoma North Coast Ranges, Forest Hills, 5.5 miles east of Guerneville 9 Comment
  RSA784596  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region: Russian River. Vacation Beach, near Guerneville. Comment
  UCR244600  Mentha Peter Rubtzoff 1958-9-27 4011 Sonoma Laguna de Santa Rosa, northeast of Graton, 1.5 mi north of Guerneville Road 23 Comment
  RSA785216  Mentha Peter Rubtzoff 1958-8-16 3882 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  RSA785671  Mentha Peter Rubtzoff 1960-9-17 4571 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  UCD148385  Mentha canadensis Peter Rubtzoff 1956-9-15 2899 Sonoma Atascadero Creek Marsh. Comment
  UCD148406  Mentha canadensis Peter Rubtzoff 1958-8-16 3882 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  PASA1168  Mentha pulegium Frank W. Peirson 1925-8-8 Sonoma 5 miles east of Santa Rosa Comment
  RSA33085  Mentha pulegium A. A. Heller 1923-7-12 s.n. Sonoma Windsor Comment
  UCR255872  Mentha spicata Greg de Nevers 1992-6-26 10184 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 91 Comment
  RSA784548  Mentha spicata Peter Rubtzoff 1960-9-14 4557 Sonoma Laguna de Santa Rosa area NE of Graton (near Laguna Road). Comment
  CDA31024  Mentzelia laevicaulis D. G. Kelch, Troy McGregor 2010-8-22 10 .361 Sonoma Geyser Peak Rd along Sulfur Creek nr historic bridge. Comment
  CAS-BOT-BC428957  Micranthes californica A. A. Heller; H. E. Brown 1902-3-12 5040 Sonoma Sonoma Creek, Eastern base of Mt. Hood Comment
  JEPS58999  Micropus amphibolus John Thomas Howell 1965-3-25 41033 Sonoma 3 mi se of Sonoma Comment
  UC673613  Micropus amphibolus Herbert L. Mason 1934-4-28 8081 Sonoma four mi w Healdsburg (head of Dohrman Creek); Jensen's Ranch Comment
  SD71410  Micropus amphibolus John Thomas Howell 1965-3-25 41033 Sonoma 3.0 miles southeast of Sonoma. 74 Comment
  CAS-BOT-BC348634  Micropus californicus var. californicus Barrett Anderson 1987-4-27 3472 Sonoma Petaluma, south of El Rose and west of D Street 120 Comment
  CAS-BOT-BC348687  Microseris acuminata Alice Eastwood 1921-4-24 10393 Sonoma Santa Rosa Comment
  CAS-BOT-BC348732  Microseris bigelovii Alice Eastwood 1915-6-29 4870 Sonoma Bodega Point Comment
  UC50030  Microseris douglasii subsp. douglasii Edw. L. Greene 1892-4-23 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC349106  Microseris douglasii subsp. tenella Alice Eastwood 1921-5-8 10446 Sonoma Petaluma Comment
  SEINET12333744  Microsteris gracilis H. K. Wagnon 1989-1 1847 Sonoma Spring Lake Park and environs 67 Comment
  CAS-BOT-BC320496  Mimulus Peter Rubtzoff 1955-8-20 2064 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC311872  Mimulus Peter Rubtzoff 1976-6-18 8656 Sonoma Kenwood Marsh. Comment
  RSA0025400  Mimulus Peter Rubtzoff 1954-7-29 1606 Sonoma Guerneville Marsh. Comment
  JEPS77266  Mimulus arvensis Robert M. Lloyd 1963-4-24 2403 Sonoma 18.3 mi e State Highway 12 (on road to Oakdale) 243 Comment
  UC1012384  Mimulus aurantiacus var. aurantiacus Francis W. Pennell Jul 2 1940-Jul 3 1940 26033 Sonoma mountain ne Kenwood Springs 243 Comment
  CDA15996  Mimulus cardinalis G. F. Hrusa, M. Gillogly 2000-7-26 15676 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. 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
  RSA535826  Mimulus douglasii David M. Thompson 1988-4-2 864 Sonoma 1.1 mi N of Porter Creek Road along Franz Valley Road. 30 ft S of (and opposite) 900 Franz Valley Road residence gate. 305 Comment
  UCR248878  Mimulus guttatus Peter Rubtzoff 1962-6-19 4918 Sonoma Occidental Marsh 305 Comment
  UCR275257  Mimulus guttatus Peter Rubtzoff 1959-6-20 4171 Sonoma Willow Creek Marsh 9 Comment
  UC26911  Mimulus pilosus Alice King Sept., 1896 Sonoma Healdsburg Comment
  JEPS86356  Mimulus tricolor Jack and Betty Guggolz 1988-5-10 929 Sonoma on e side Old Redwood Hwy. (just n of its intersection with Starr Road, Grill property) Comment
  POM5035  Mimulus tricolor Katherine Brandegee 1905-6-8 s.n. Sonoma Along electric line near Santa Rosa. Comment
  CAS-BOT-BC435110  Mollugo verticillata Peter Rubtzoff 1958-9-21 4002 Sonoma Vacation Beach, near Guerneville. Bottom of Russian River. Comment
  CAS-BOT-BC435109  Mollugo verticillata Peter Rubtzoff 1959-8-30 4245 Sonoma Drake's Beach, near Guerneville. Bottom of Russian River. Comment
  UCD167562  Monardella James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. 1/4 mile north of Black Hawk Ranch. Banks above Squaw Creek. (Exact location unkown. Coordinates estimated by label maker. Black Hawk Ranch location not found. Location georeferenced at the end of Ottobani Ridge between Big Sulphur Creek and Squaw Creek because neilson collected in that area on 18 June 1976.) Comment
  LA62442  Monardella villosa Herbert L. Mason; 1928-7-10 4883 Sonoma Jenner Comment
  CAS-BOT-BC314204  Monardella villosa subsp. villosa H. D. Ripley; R. C. Barneby 1945-6-22 6939 Sonoma N. of Jenner 30 Comment
  SEINET7042573  Monardella villosa subsp. villosa A. G. Vestal 1947-5-16 s.n. Sonoma Ca. 6.7 miles east of Windsor. Jimtown quadrangle UTM Zone 10, 519948mE, 4276242mN. Comment
  UC50091  Monolopia major H. N. Bolander 1866-4-18 4665 Sonoma Petaluma Comment
  CAS-BOT-BC444994  Montia fontana Greg de Nevers 1990-3-26 9654 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In Weimar Pond. 457 Comment
  CAS-BOT-BC444984  Montia fontana H. L. Mason 1926-3-20 2752 Sonoma Along railroad right-of-way, south of Calistoga Comment
  UC634934  Montia fontana H. L. Mason 1926-3-20 2752 Sonoma s of Calistoga (along railroad right-of-way) Comment
  UCD144661  Montia fontana Frederica Bowcutt; Kate Mawdsley 1996-3-24 2067 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. About 1 air miles S of Red Mtn, just S of Sonoma Creek. 365 Comment
  RSA0102995  Montia gypsophiloides Lyman Benson 1935-3-31 6407 Sonoma U.S. 101, Healdsburg. Mt. Range: North Coast. Watershed: Russian River. 243 Comment
  SBBG128418  Morella californica L. Ahart, M. Anthony, J. Dittes, J. Guardino 2013-4-25 18601 Sonoma near the edge of a residential driveway, 0.7 mi E of Pacific Ocean, 0.8 mi W of Gualala River 111 Comment
  UC1146576  Muhlenbergia andina Freed W. Hoffman 1947-8-30 575 Sonoma Red Slide North Coast Ranges, Austin Creek, Layton Mine Comment
  UCD86411  Muhlenbergia andina Freed W. Hoffman 1947-5-30 1700 Sonoma Layton Mine, Austin Creek. Comment
  CAS-BOT-BC515646  Muilla maritima Peter H. Raven 1950-4-6 1567 Sonoma Cotati to Santa Rosa Comment
  JEPS23885  Myosotis discolor G. Thomas Robbins 1937-5-23 198 Sonoma ca. 10 mi. w. Santa Rosa (marsh on Pitkin Ranch); Vine Hill region, Pitkin Ranch Comment
  CAS-BOT-BC83247  Myosurus minimus J. W. Congdon 1880-4-22 s.n. Sonoma Petaluma. Comment
  CAS-BOT-BC101792  Myrica californica Peter Rubtzoff 1962-4-11 4788 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road) Comment
  UCD166107  Myriophyllum Peter Rubtzoff 1971-9-3 6702 Sonoma Spring Creek Reservoir area. Comment
  UCR244608  Myriophyllum aquaticum Peter Rubtzoff 1966-6-27 5770 Sonoma Santa Rosa Creek area, c. 1 mile east of the Laguna de Santa Rosa 28 Comment
  CAS-BOT-BC251163  Myriophyllum aquaticum Peter Rubtzoff 1970-8-18 6318 Sonoma 5 miles north of Sears Point. Comment
  RSA800084  Myriophyllum brasiliense Peter Rubtzoff 1961-10-18 4770 Sonoma Cunningham Marsh. Comment
  UCD87895  Nassella cernua Gerry North 1993-4 51 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. On Vista trail 1/2 mile NE of fork with Bald Mountain trail. Sugarloaf Ridge State Park. 556 Comment
  CAS-BOT-BC260071  Nassella lepida John Thomas Howell; et al. 1981-5-14 53946 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  UC1133173  Nassella lepida H. S. Yates 1937-5-31 6567 Sonoma 2 mi sw Petrified Forest; Calistoga Quadrangle 304 Comment
  SEINET7040130  Nassella pulchra A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  CAS-BOT-BC60515  Nasturtium officinale Peter Rubtzoff 1951-6-9 158 Sonoma Pitkin Marsh near Forestville. Northern half of Lower Marsh. Comment
  POM65215  Navarretia cotulifolia A. A. Heller 1902-6-4 s.n. Sonoma Santa Rosa. Comment
  UC23655  Navarretia intertexta Alice King Jun 1897 Sonoma Healdsburg Comment
  UCR30586  Navarretia intertexta John C. Roos 1950-7-22 4876 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  UC1719858  Navarretia jepsonii David Fruchter 1978-9-17 97 Sonoma Diamond D. Comment
  CAS-BOT-BC230375  Navarretia leucocephala subsp. bakeri Niall McCarten; R. Bittman 1985-5-19 5491 Sonoma SE of junction of Highway 101 and Shiloh Road, N of Santa Rosa Comment
  SEINET191588  Navarretia pubescens Lewis S. Rose 1940-5-22 40371 Sonoma Sonoma 30 Comment
  HSC100965  Navarretia pubescens Peter Warner, Sarah Gordon 2011-5-27 204 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), ~675 m, N75 deg. E from main residence, E from Mark West Creek Rd., S of 2nd bridge below power lines. 58 Comment
  SD38214  Navarretia squarrosa Edith A. Purer 1932-7-21 4043 Sonoma Bodega Bay, sandy bluff Comment
  UCD55331  Navarretia squarrosa Ellen Dean 2006-6-28 3174 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. 182 Comment
  SD53367  Navarretia squarrosa Darley F. Howe 1962-7-28 3360 Sonoma Mark West Creek, 3.4 miles east of #101 Comment
  UC856900  Navarretia viscidula John Thomas Howell 1937-7-4 13082 Sonoma 5 mi n Sebastopol Comment
  UC1069145  Nemophila heterophylla E. Armstrong 1934-3-26 950 Sonoma 2 mi n Camp Meeker; Sebastopol Quad., n of Camp Meeker 121 Comment
  POM180750  Nemophila heterophylla J. T. Howell 1929-6-30 4315 Sonoma 6 miles from Petrified Forest on road to Knights Valley. Comment
  UC606952  Nemophila menziesii var. atomaria L. Constance 1938-4-24 2158 Sonoma mouth of small canyon 0.5 mi s Fort Ross; s of Fort Ross 91 Comment
  UCD160061  Nemophila menziesii var. atomaria James A. Neilson Jr. 1975-4-9 3126 Sonoma Mayacmas Mountains, Hilary Farms. (Exact location unknown. Elevation and coordinates estimated by label maker.) 609 Comment
  POM65261  Nemophila menziesii var. atomaria A. A. Heller, H. E. Brown 1902-3-12 5047 Sonoma Sonoma Creek, eastern base of Mt. Hood. Comment
  UCD120241  Nemophila menziesii var. atomaria Frederic Hrusa 1988-2-21 5501 Sonoma South of Mt. St. Helena. Near Kenwood. Comment
  CAS-BOT-BC157971  Nicotiana Peter Rubtzoff 1974-8-3 7793 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River Comment
  SEINET12327553  Nicotiana acuminata var. multiflora W. Knight, Knight, I.; Edwards, S. W. 1984-1 5043 Sonoma along Willow Creek near Stony Point Rd, between Corona Rd & Old Redwood Hwy 6 Comment
  UC26162  Nicotiana quadrivalvis J. B. Davy Jul 1896 Sonoma near Russian River Station Comment
  HSC8113  Notholithocarpus densiflorus var. densiflorus F. Demostene 1966-4-4 20 Sonoma 1 mi. W of Healdsburg Comment
  HSC100100  Oemleria cerasiformis J. P. Smith, & J. O. Sawyer 2010-4-26 12719 Sonoma 509 Comment
  POM89246  Oemleria cerasiformis Marcus E. Jones 1982-7-18 3578 Sonoma Duncan Mill Comment
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Mar 22 2010
  JEPS15790  Oenanthe sarmentosa M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 239 Sonoma near Guerneville (Russian River); Russian River Comment
  JEPS77874  Oenanthe sarmentosa Robert M. Lloyd 1965-5-8 3637 Sonoma e. of Cunningham s.e. of Sebastopol (ca. 4 mi. n. of Rte. 116, Llano Rd., upper portion of Laguna de Santa Rosa Marsh); Laguna de Santa Rosa Marsh Comment
  SEINET6171222 Image available Orobanche bulbosa Sally Walker 1984-7-22 Sonoma Schoolhouse beach Comment
  JEPS66549  Orobanche californica subsp. grayana Peter Rubtzoff 1971-7-23 6615 Sonoma Laguna, Cheleno Valley. Comment
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Apr 3 2019
  CAS-BOT-BC500334  Orobanche uniflora subsp. occidentalis Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  POM182697  Orthocarpus erianthus D. D. Keck 1931-4-2 1001 Sonoma Boyes Springs 30 Comment
  SEINET12270159  Orthocarpus faucibarbatus L. D. Thurman 1963-1 150 Sonoma 2 mi W of Valley Ford on State Hwy 1 Comment
  NY90845  Orthocarpus faucibarbatus var. albidus D. D. Keck 1935-6-15 3375 Sonoma 3 mi. S of Russian River mouth. Comment
  POM180617  Orthocarpus faucibarbatus var. albidus J. T. Howell 1930-6-8 5278 Sonoma Hillside overlooking the ocean, 8 miles N of Bodega Bay Comment
  RSA31780  Orthocarpus lithospermoides A. A. Heller 1940-5-10 s.n. Sonoma Several miles east of Skagg's Springs. Comment
  UC1295818  Osmorhiza berteroi unknown 1892-2 Sonoma Petrified Forest Comment
  SEINET12121508  Osmorhiza chilensis F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -087 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  POM139492  Oxalis albicans subsp. pilosa A. A. Heller, H. E. Brown 1902-4-9 8378 Sonoma Three Miles South of Healdsburg. Comment
  JEPS76915  Oxalis oregana Robert M. Lloyd 1963-2-24 2047 Sonoma 1/2 mi n Occidental (abandoned picnic ground, on rd to Camp Meeks) 45 Comment
  SEINET3347656 Image available Oxalis oregana Martha Meagher 1947-3-23 93 Sonoma Along county road 1/2 mile W of Freezeout Creek across Russian River from Duncan's Mills Comment
  HSC16713  Oxalis pes-caprae S. N. Wiemeyer 1962-4-13 9 Sonoma 2.1 mi. N of Jct. of Calistoga Rd. and Hwy. 12 274 Comment
  UCD160904  Packera greenei James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3433 Sonoma Section 10, The Geysers, above Geysers Road. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  RSA784566  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River bottom at Forest HIlls, 5.5 mi 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
  RSA94264  Panicum acuminatum var. acuminatum Peter Rubtzoff 1951-6-7 134 Sonoma Western branch of the Upper marsh; Pitkin Marsh, near Forestville 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
  UCD167112  Panicum acuminatum var. fasciculatum James Neilson 1975-7-8 3404 Sonoma Mayacmas Mountains. Socrates Mine. (Exact location unknown, coordinates estimated by label maker.) Comment
  HSC83426  Panicum acuminatum var. fasciculatum Mary M. Hektner 1974-7-6 132 Sonoma Sea Ranch, near golf course. 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
  CAS-BOT-BC253774  Panicum capillare Peter Rubtzoff 1956-9-14 2862 Sonoma Russian River bottom, Vacation Beach, near Guerneville Comment
  CAS-BOT-BC253794  Panicum hillmanii Peter Rubtzoff 1971-8-23 6659 Sonoma Meacham Road 0.35 mile S of Stony Point Road Comment
  SBBG115658  Panicum thermale B. Crampton 1964-8-18 7139 c Sonoma The Geysers, above Geyser Crk, ca. 12 mi (in direct line) E of Cloverdale, ca. 0.5 mi E of Geyser Resort area, slope of steam thermal no 10 (Thermal Power Co.) 493 Comment
  UC1299671  Parnassia californica Freed W. Hoffman 1946-9-26 571 Sonoma North Coast Ranges, Layton Mine, Austin Creek Austin Creek Austin Creek; North Coast Ranges, Layton Mine, Austin Creek Comment
  CAS-BOT-BC156322  Paspalum Peter Rubtzoff 1971-8-23 6654 Sonoma Meacham Road, 0.35 mi. S of Stony Point Road. Comment
  CAS-BOT-BC259690  Paspalum dilatatum Richard W. Pohl 1963-6-1 9436 Sonoma Geyser Summit Comment
  CAS-BOT-BC371443  Pectocarya pusilla Greg de Nevers 1998-4-26 11195 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Silva's property, Devils Kitchen, in Section 6 400 Comment
  HSC20925  Pedicularis densiflora James Faro 1962-4-14 19 Sonoma 5 mi. N of Guerneville on Old Cazadero Rd. Comment
  UCD165222  Pelargonium Peter Rubtzoff 1974-6-9 7585 Sonoma Upper Green Valley Marsh area. Comment
  HSC1057  Pellaea andromedifolia A. Sylvester, D. Sutherland, R. Spellenberg 1966-3-26 1346 Sonoma 12 mi. W of Big Geysers along Sulfur Cr. Comment
  UCD151229  Penstemon heterophyllus James A. Neilson Jr. 1974-5-17 2847 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
  UCD160868  Penstemon heterophyllus James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3292 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UC1238912  Penstemon heterophyllus var. heterophyllus Freed W. Hoffman 1947-8-4 1419 Sonoma Mt. St. Helena North Coast Ranges 609 Comment
  NY601758  Penstemon heterophyllus var. purdyi A. A. Heller 1902-5-29 5625 Sonoma Mount Hood Comment
  UC1980579  Penstemon heterophyllus var. purdyi James L. Reveal 1987-6-7 6415 Sonoma Along Cavedale Road, about 2.4 mile south of Trinity Road and about 5 miles northeast of California Highway 12, about 13 airline miles south east of Santa Rosa Comment
  UC27595  Penstemon heterophyllus var. purdyi State Survey 1890-1 6540 Sonoma Russian River bed at Cloverdale; Russian River bed at Cloverdale Comment
  NY627433  Penstemon newberryi var. sonomensis A. A. Heller 1902-5-29 5626 Sonoma Mt. Hood Comment
  SEINET12327816  Pentagramma triangularis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -095 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 244 Comment
  SEINET12332457  Pentagramma triangularis F. H. Utech 1988-1 88 -226 Sonoma 3 mi S of Ft. Ross Historic Site and junction with Ft. Ross Road on CA 1 (Coastal Hwy) Mile 29.90 100 Comment
  SEINET8465052 Image available Pentagramma triangularis subsp. triangularis G. K. Helmkamp, E. A. Helmkamp 2010-6-5 16241 Sonoma North Coast Ranges: River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guemeville on slope above the Russian River 12 Comment
  UC1193125  Pentagramma triangularis subsp. triangularis P. Zinke 1950-4-25 114 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  UCD137796  Pentagramma triangularis subsp. triangularis C. Wistrom 1996-5-26 37 Sonoma Healdsburg. 1735 Dry Creek Road. 48 Comment
  CAS-BOT-BC222745  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1962-8-3 5017 Sonoma Atascadero Creek Marsh Comment
  JEPS120461  Perideridia gairdneri subsp. gairdneri Daniel Slakey 2013-8-11 63 Sonoma Salt Point State Park, along the Salt Point trail, about 0.4 mile north of Salt Point, along the coast. Comment
  CHSC101363  Perideridia kelloggii Holly Forbes; Barbara Keller 2007-10-26 UCBG- 10 Sonoma Ecoregion 15. Coleman Valley Road, 8.05 km west of junction with Bohemian Highway. 304 Comment
  UCD127856  Perideridia kelloggii G. F. Hrusa; R. Gross 1996-6-30 13058 Sonoma on summit of Mayacmas Range at west end of Diamond Mtn. Rd.; 2 m. SW of Calistoga. 700 Comment
  CAS-BOT-BC413653  Persicaria amphibia Peter Rubtzoff 1958-8-23 3925 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Rd.) Comment
  CAS-BOT-BC413666  Persicaria amphibia Walter Knight; Irja Knight 1964-10-4 726 Sonoma Howarth Park, Santa Rosa Comment
  CAS-BOT-BC413745  Persicaria hydropiper Peter Rubtzoff 1966-9-25 5821 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads Comment
  CAS-BOT-BC418900  Persicaria hydropiperoides Peter Rubtzoff 1969-8-24 6144 Sonoma On River Road 3 mi. west of Fulton Comment
  CAS-BOT-BC418911  Persicaria hydropiperoides Peter Rubtzoff 1963-10-5 5289 Sonoma Laguna de Santa Rosa east of Graton Comment
  CAS-BOT-BC418918  Persicaria hydropiperoides Peter Rubtzoff 1958-8-16 3880 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road) Comment
  CAS-BOT-BC418919  Persicaria hydropiperoides Peter Rubtzoff 1958-8-23 3928 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Rd.) Comment
  CAS-BOT-BC418897  Persicaria hydropiperoides Peter Rubtzoff 1951-7-1 349 Sonoma Pitkin Marsh, near Forestville. North of the Lower Marsh Comment
  CAS-BOT-BC419116  Persicaria lapathifolia Peter Rubtzoff 1965-9-5 5643 Sonoma Russian River bottom at Forest Hills (5.5 mi. east of Guerneville) Comment
  CAS-BOT-BC419270  Persicaria maculosa Peter Rubtzoff 1969-8-29 6171 Sonoma Beach of Salmon Creek ca. 1/2 mi. upstream from Hwy. #1 Comment
  CAS-BOT-BC419280  Persicaria maculosa M. S. Jussel 1931-5-3 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC419290  Persicaria pensylvanica John Thomas Howell 1932-9-18 10778 Sonoma Bank of slough draining Kenwood Marsh Comment
  CAS-BOT-BC419423  Persicaria punctata Peter Rubtzoff 1966-9-25 5824 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads Comment
  UC35660  Petasites frigidus var. palmatus J. Burtt Davy March 1896 1639 Sonoma near Duncan's Mills Comment
  UCR90865  Petrorhagia nanteuilii Kathy Harper, D. Karr 1994-6-10 s.n. Sonoma North Coast Range, King Ridge Road along Big Austin Creek, north of Cazadero 122 Comment
Read comments
Jan 29 2010
  SD88415  Phacelia californica Darley F. Howe 1972-4-30 Sonoma South of Bodega Bay. Comment
  UC1333289  Phacelia californica Malcolm L. Byce 1936-3-21 147 Sonoma 1 1/2 mi e Bodega Bay; Larkspur Rock Comment
  UCD120297  Phacelia californica P. G. Connors 1991-7-3 194 Sonoma Bodega Marine Laboratory, Bodega Head and Dunes. Comment
  JEPS22726  Phacelia distans Rimo Bacigalupi 1958-5-24 6364 Sonoma n slope just below Camp Meeker; Dutch Bill Creek Canyon, Alder Canyon 97 Comment
  UC923116  Phacelia egena Freed W. Hoffman 1950-5-24 3322 Sonoma East Austin Creek North Coast Ranges, Rocky Mountain Comment
  JEPS2165  Phacelia imbricata W. L. Jepson 1911-4-30 4185 Sonoma Sonoma Valley Comment
  UC1051811  Phacelia nemoralis subsp. nemoralis L. R. Heckard 1952-4-14 226 Sonoma roadcuts and roadsides about 2.5 mi e Alexander Flat (along rd to Pine Valley) 60 Comment
  UCR244624  Phalaris angusta Peter Rubtzoff 1972-6-23 6785 Sonoma Atascadero Creek Marsh Comment
  UCD88174  Phalaris aquatica Javier Penalosa 1961-5-24 1602 Sonoma Pepper Road. .9 miles N of Petaluma - Valley Ford Road. Comment
  CAS-BOT-BC259020  Phalaris californica Peter Rubtzoff 1962-6-1 4859 Sonoma Freestone Marsh Comment
  CAS-BOT-BC210061  Phalaris lemmonii Peter Rubtzoff 1972-6-23 6784 Sonoma Atascadero Creek Marsh. Comment
  UC1011003  Phalaris paradoxa Virginia Bufford 1936-5-20 307 Sonoma Mark West Creek Rd about 3 or 4 mi from Redwood Hiway; Mark West Creek Rd. Comment
  HSC101099  Phalaris paradoxa Peter Warner 2011-8-10 227 Sonoma Jenner Headlands property, Muniz Ranch Rd., about 0.5 mi. N from Hwy. 1 intersection. 55 Comment
  UCD89316  Phleum alpinum P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC222474  Pholistoma Saichi Kawahara 1968-4-20 316 Sonoma 3 miles northeast of Lakeville Road 76 Comment
  CAS-BOT-BC135036  Phoradendron bolleanum John Thomas Howell 1933-4-2 10961 Sonoma 2 miles E of Occidental Comment
  RSA178022  Phoradendron densum Robert F. Thorne 1965-4-19 34280 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  UCD160920  Phragmites australis James A. Neilson Jr. 1975-7-8 3383 Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. (Exact location unknown. Coordinates and elevation estimated by label maker.) 731 Comment
  CAS-BOT-BC140624  Physocarpus capitatus Peter Rubtzoff 1964-5-20 5314 Sonoma Brooks Gulch Marsh Comment
  RSA534576  Physocarpus capitatus Peter Rubtzoff 1957-4-28 3287 Sonoma Lower Salmon Creek marsh. Thicket on hillslope at the edge of the marsh. Comment
  UCD113680  Physocarpus capitatus Mary M. Hektner 1975-6-3 208 Sonoma Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  CDA20075  Phytolacca americana R. Gross 2002-10-26 s.n. Sonoma Northwestern California; Hwy 128 at Foss Hill Rd. 0 Comment
  CAS-BOT-BC202284  Pickeringia montana var. montana Walter Knight; Irja Knight 1963-9-15 289 Sonoma Los Alamos Rd, Santa Rosa Comment
  RSA796390  Picris echioides Peter Rubtzoff 1973-8-20 7221 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  RSA796384  Picris echioides Peter Rubtzoff 1964-8-26 5489 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road 213 Comment
  CDA500  Pinus attenuata G. Fred Hrusa 2000-2-6 s.n. Sonoma Mt. St. Helena, NW facing slope; 1/4 mi N of summit of Ida Clayton Rd. 0 Comment
  POM316057  Pinus muricata Patricia Wilder 1965-6-10 3652 Sonoma Seaview road, ca. 1 miles north of junction with Fort Ross road. 549 Comment
  SEINET5055374  Pinus muricata Unknown 1983-7-7 E- 3 Sonoma Vicinity Salt Point, State Hwy 1 Comment
  UCD134794  Pinus muricata Lalit M. Srivastava 1957-11-2 25 Sonoma East side of State Highway 1, ca. 2 miles north of Fort Ross. 30 Comment
  UCD158878  Pinus ponderosa James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2900 Sonoma Mayacmas Mountains; northeast corner of Section 15, southwest of The Geysers. (Elevation estimated by label maker using Google Earth.) 609 Comment
  UCD134988  Pinus radiata Mary M. Hektner 1975-8-14 222 Sonoma Next to Whalers' Reach, Unit 7 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCSC008209  Piperia elegans Randall Morgan 1989-1 1321 -P, 1324-P Sonoma Malm Flat Trail, Sugarloaf Ridge State Park Comment
  JEPS78945  Pityopus californicus Edward Lee 1936-6-7 2203 Sonoma South ridge, fire trail, Bohemian Trail Comment
  CAS-BOT-BC164673  Plagiobothrys Peter Rubtzoff 1971-7-3 6590 Sonoma W side of Hwy. 1, 0.7 mi. SE of Salmon Creek Crossing Comment
  CAS-BOT-BC173584  Plagiobothrys Peter Rubtzoff 1969-5-3 6015 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC176145  Plagiobothrys Peter Rubtzoff 1969-5-11 6032 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC176381  Plagiobothrys Peter Rubtzoff 1969-5-11 6040 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CHSC110480  Plagiobothrys Peter Rubtzoff; H. A. Froebe 1971-5-30 6488 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  RSA785154  Plagiobothrys Peter Rubtzoff 1969-5-3 6016 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  UCD166174  Plagiobothrys Peter Rubtzoff 1969-6-15 6091 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
  UCR279865  Plagiobothrys bracteatus Peter Rubtzoff 1970-5-16 6231 Sonoma San Francisco Bay Region, Five miles north of Sears Point 9 Comment
  JEPS35790  Plagiobothrys greenei Rimo Bacigalupi, R. Ornduff, L. Heckard 1964-3-25 8925 Sonoma pasture e Arnold Drive (0.7 mi n of its junction with state hwy 37, s of Sonoma) Comment
  JEPS117070  Plagiobothrys greenei Peter Warner 2010-3-30 128 Sonoma Annadel State Park, east of Santa Rosa; approx. 200 m south of Cobblestone Trail, approx. 1 km west of Channel Drive. Comment
  UC881328  Plagiobothrys greenei Milo S. Baker 1940-4-24 9549 Sonoma s Warfield Comment
  UCR255045  Plagiobothrys reticulatus var. reticulatus Greg de Nevers 1989-1 9070 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UC881350  Plagiobothrys stipitatus Alice Eastwood 1921-4-24 10261 Sonoma Santa Rosa Comment
  RSA785155  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-3 6015 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  SD130522  Plagiobothrys tenellus F. Almeda, G. DeNevers 1981-3-30 4892 Sonoma southeast facing slopes just west of the Redwood Canyon. Comment
  UCR280147  Plagiobothrys tener var. tener Peter Rubtzoff 1972-4-23 6735 Sonoma North Coast Range, 4.25 miles west of Glen Ellen on Bennett Valley Road 220 Comment
  UCD164695  Plagiobothrys undulatus Peter Rubtzoff; Tim Tunison, Nancy Harrison 1976-6-5 8582 Sonoma False Lake Meadow area, Annadel State Park. Comment
  CAS-BOT-BC258398  Plantago Peter Rubtzoff 1973-10-10 7341 Sonoma Tributary of Americano Creek, 2 miles west of Bloomfield. Comment
  CAS-BOT-BC258399  Plantago Peter Rubtzoff 1959-6-20 4143 Sonoma Willow Creek Marsh. Comment
  SD88561  Plantago erecta Darley F. Howe 1972-5-3 4819 Sonoma Ocean bluff, 4.0 miles north of Ft. Ross. Comment
  UCD160860  Plantago lanceolata James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3289 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  SD88566  Plantago maritima subsp. juncoides Darley F. Howe 1972-5-3 Sonoma 4.0 miles north of Ft. Ross. Comment
  UC1125647  Plantago maritima var. californica H. S. Yates 1934-4-21 3808 Sonoma near Bodega Port; Duncan Mills Quad. 15 Comment
  CAS-BOT-BC258381  Plantago subnuda Peter Rubtzoff 1968-7-29 5922 Sonoma Upper Salmon Creek Marsh. Comment
  UC1057476  Platanthera leucostachys G. Thomas Robbins 1937-5-23 208 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch, Vine Hill region); Vine Hill Comment
  CAS-BOT-BC92121  Platystemon californicus A. A. Heller; H. E. Brown 1902-3-20 5105 Sonoma Near Windsor. Comment
  CAS-BOT-BC92124  Platystemon californicus Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs. Comment
  CAS-BOT-BC92127  Platystemon californicus Roxana S. Ferris; D. H. Morey 1958-4-10 13328 Sonoma Bodega Bay. Comment
  CAS-BOT-BC92129  Platystemon californicus F. Almeda; G. DeNevers 1981-3-30 4882 Sonoma Pepperwood Ranch. Vicinity of the Bechtel Cabin. Comment
  UC147066  Platystemon californicus H. P. Chandler 1907-4-28 7548 Sonoma near road to Mark West Sprs.; near road to Mark West Sprs. Comment
  CAS-BOT-BC92128  Platystemon californicus G. DeNevers 1981-5-2 914 Sonoma Pepperwood Ranch. At Pepperwood by the barn. Comment
  SD130425  Platystemon californicus F. Almeda, G. DeNevers 1981-3-30 4882 Sonoma Vicinity of the Bechtel Cabin. Comment
  SFV8385  Platystemon californicus K. D. Parman 1972-5-6 24 Sonoma Bodega Bay, University of California Marine Laboratory on State Highway 1. Meadow at head of peninsula. Comment
  RSA51320  Platystemon californicus var. californicus Peter H. Raven 1950-4-6 1572 Sonoma Cotati to Santa Rosa. 30 Comment
  POM253176  Plectritis congesta subsp. nitida A. A. Heller 1938-5-14 15088 Sonoma Just east of Bodega Bay. Comment
  OBI22106  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  SD71039  Pleuropogon californicus David L. Morgan 1961-4-25 Sonoma Low wet field near Stemple Creek, 3 miles southwest of Cotati Comment
  SJSU5733  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  CDA32629  Pleuropogon californicus J. Sallee 1971-4-28 Sonoma Railroad tracks, 8th Street East, Sonoma 0 Comment
  UCD90167  Pleuropogon californicus var. californicus John Lenz 1947-4-18 s.n. Sonoma near road between Freestone and Bodega. Comment
  UCD90189  Pleuropogon californicus var. californicus R. Tofsrud 1947-4-6 s.n. Sonoma Santa Rosa, off Hoen Avenue. Larry King's place. Comment
  UC1446217  Pleuropogon hooverianus Paul But with Grace Law 1977-5-3 P 6 Sonoma 3 mi ne of Penngrove (along Pressley Road) Comment
  RSA0021491  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
  UC1132643  Poa howellii H. S. Yates 1936-5-16 5608 Sonoma 1 mi nw Mountain View School; Sebastopol Quadrangle Comment
  CAS-BOT-BC256036  Poa pratensis Peter Rubtzoff 1963-6-5 5153 Sonoma Brooks Gulch Marsh Comment
  RSA0021487  Poa pratensis Peter Rubtzoff 1976-6-18 8650 Sonoma Kenwood Marsh. Comment
  POM204983  Poa secunda A. A. Heller 1902-4-9 5249 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  CAS-BOT-BC243250  Poa secunda subsp. secunda Catherine Best 1980-4-16 s.n. Sonoma Westerbeke Ranch near El Verano Comment
  UCD90893  Poa secunda subsp. secunda B. A. Etcheverry 1928-4-22 s.n. Sonoma Wilbur Springs. Comment
  CAS-BOT-BC243202  Poa secunda subsp. secunda David L. Morgan 1961-4-12 s.n. Sonoma Junction of J Street extension and San Antonio Road, 2 miles SW of Petaluma Comment
  CAS-BOT-BC244189  Poa trivialis Peter Rubtzoff 1954-6-6 1470 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC244191  Poa trivialis Peter Rubtzoff 1960-6-5 4435 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road Comment
  CAS-BOT-BC244198  Poa trivialis Peter Rubtzoff 1955-7-17 1972 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC244199  Poa trivialis Peter Rubtzoff 1955-6-26 1905 Sonoma Duncans Mills Marsh, edge of the lower portion of the marsh Comment
  UCD92150  Poa unilateralis P. B. Kennedy 1915-6-1 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC376366  Poaceae Greg de Nevers 1992-6-26 10192 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Creek. 400 Comment
  UCD125255  Pogogyne douglasii G. F. Hrusa; R. Gross 1996-6-30 13065 Sonoma Permanent spring-derived pool at W end of Diamond Mtn. Rd. Lower of two pools, approx 150 meters apart. 2 m. SW of Calistoga. 700 Comment
  RSA83443  Pogogyne douglasii F. W. Peirson 1925-8-8 6340 Sonoma Field 6 miles south of Santa Rosa Comment
  CDA40768  Pogogyne douglasii subsp. minor Peter Rubtzoff 1971-5-3 6487 Sonoma 4.25 miles west of Glen Ellen. 0 Comment
  UC1085297  Polemonium carneum J. Ewan 1935-5-13 9207 Sonoma 2 mi w Bodega (Bodega Bay road); w of Bodega, Bodega Bay road Comment
  UC1002652  Polycarpon tetraphyllum Milo S. Baker and H. K. Wagnon 1954-7-1 12960 Sonoma Santa Rosa; sidewalk crevices in front of Hughes Garage 2nd St. Comment
  UC1130349  Polygala californica H. S. Yates 1934-4-21 3813 Sonoma 2 mi n County Farm; Santa Rosa Quad. Comment
  UC450151  Polygala californica Milo S. Baker 1898-6-11 657 Sonoma Little Sulphur Creek Comment
  SEINET12205239  Polygala californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -088 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 244 Comment
  SEINET12205240  Polygala californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -162 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC164373  Polygonum Peter Rubtzoff 1970-5-30 6246 Sonoma 5 mi. north of Sears Point Comment
  CAS-BOT-BC290599  Polygonum Peter Rubtzoff 1966-8-25 5802 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC540806  Polygonum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7847 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC414110  Polygonum aviculare subsp. aviculare Walter Knight; Irja Knight 1963-10-3 346 Sonoma Bennett Valley Comment
  RSA0072156  Polygonum convolvulus Greg de Nevers 1992-8-1 10239 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 500 Comment
  RSA234469  Polygonum hydropiper Peter Rubtzoff 1966-9-25 5821 Sonoma Laguna de Santa Rosa E of Graton, betw. Occidental and Guerneville Roads. Comment
  POM225313  Polygonum punctatum J. T. Howell 1932-9-18 10770 Sonoma Kenwood Marsh near Kenwood Comment
  SEINET11720935  Polypodium californicum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -64 Sonoma Glen Ellen area, junction Warm Springs Road & Sonoma Mt. Road along Graham Creek Comment
  UC440181  Polypodium calirhiza Michener and Bioletti Mar 1892 Sonoma Adobe Canyon Comment
  JEPS60082  Polypodium scouleri Alice Griffin 1924-9-1 Sonoma Stewart's Point Comment
  UC1051680  Polypodium scouleri Peter Kamb 1950-6-17 1881 Sonoma 2.9 mi w of fork in road to Bodega and Valley Ford (Larkspur Rock); s side Cheney Gulch 30 Comment
  CAS-BOT-BC331490  Polypogon Peter Rubtzoff 1973-9-8 7303 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC233003  Polypogon australis Peter Rubtzoff 1951-7-1 327 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  SEINET197659 Image available Polypogon interruptus L. Koch 1940-6-5 1012 Sonoma Hills behind Fountaingrove Vinyard 3 mi N of Santa Rosa along Hwy 101 Comment
  UC1026466  Polypogon interruptus Peter Rubtzoff 1951-7-14 431 Sonoma near Forestville (Pitkin Marsh, southern half Lower Marsh); Pitkin Marsh, Lower Marsh Comment
  UC1056223  Polypogon interruptus Virginia E. Long 1930-9-13 7 a Sonoma about 10 mi n Cloverdale Comment
  RSA94462  Polypogon interruptus Peter Rubtzoff 1951-6-16 220 Sonoma Pitkin Marsh, near Forestville. Northern 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
  SEINET8719333 Image available Polypogon lutosus Leo Koch 1940-1 1012 Sonoma Behind Fountaingrove Vineyard three miles north of Santa Rosa along Highway 101 Comment
  CAS-BOT-BC233220  Polypogon maritimus D. E. Breedlove 1980-6-27 44733 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC237407  Polypogon monspeliensis Peter Rubtzoff 1955-7-31 2013 A Sonoma Forestville Marsh Comment
  SD39929  Polypogon monspeliensis Edith A. Purer 1932-7-24 4082 Sonoma Bodega Bay, stabilized dunes Comment
  UCR248741  Polypogon monspeliensis Peter Rubtzoff 1973-9-8 7303 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  CAS-BOT-BC237413  Polypogon monspeliensis John H. Thomas 1976-6-17 18355 Sonoma Near N end of Sea Ranch, NW part of county, about 4 miles S of Gualala Comment
  SEINET10828403  Polypogon monspeliensis A. Arthur Heller 1902-6-7 Heller 5652 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  UCD91340  Polypogon monspeliensis P. B. Kennedy 1920-6-17 X 3252 Sonoma Santa Rosa; Field -- Campus -- Berkeley Comment
  UCD91413  Polypogon monspeliensis Terri Williamson 1990-5-24 73 Sonoma Cal-State Hayward Campus, Hayward. 243 Comment
  UC2031961  Polystichum californicum Wendy Born July 2012 Sonoma Armstrong Redwoods State Park, along the road to the Pack Station about 3/4 the way up (immediately across road from large downed tree, on right side of road) Comment
  CAS-BOT-BC72175  Polystichum californicum A. T. Graff 1926-2-1 s.n. Sonoma Cazadero Comment
  UC1481826  Polystichum imbricans subsp. imbricans Milo S. Baker 1898-6-11 656 Sonoma Little Sulphur Creek Comment
  UCD163795  Populus Peter Rubtzoff 1980-5-26 9447 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC102354  Populus alba Peter Rubtzoff 1972-9-3 6882 Sonoma Forestville Marsh Comment
  CAS-BOT-BC102667  Populus fremontii Peter Rubtzoff 1970-6-21 6266 Sonoma tributary of Mark West Creek ca. 3 mi. west of Fulton Comment
  CAS-BOT-BC445293  Portulaca oleracea Peter Rubtzoff 1958-8-30 3941 Sonoma Russian River. Vacation Beach near Guerneville. Comment
  CAS-BOT-BC445300  Portulaca oleracea G. DeNevers 1981-7-1 1742 Sonoma Pepperwood Ranch. In Pippindale Garden. 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
  CAS-BOT-BC257682  Potamogeton foliosus Peter Rubtzoff 1971-9-1 6667 Sonoma Spring Creek Reservoir area, east of Santa Rosa. Comment
  POM118993  Potamogeton illinoensis Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  CAS-BOT-BC251265  Potamogeton nodosus Peter Rubtzoff 1973-8-27 7267 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC272846  Potamogeton pusillus Peter Rubtzoff 1964-7-14 5396 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC258907  Potamogeton pusillus Peter Rubtzoff 1961-7-22 4669 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC141948  Potentilla anserina subsp. pacifica Peter Rubtzoff 1961-5-6 4675 Sonoma Americano Creek 1/2 mi. east of Valley Ford - Sonoma County Marshes Comment
  CAS-BOT-BC141949  Potentilla anserina subsp. pacifica Peter Rubtzoff 1961-5-6 4675 Sonoma Americano Creek 1/2 mi. east of Valley Ford - Sonoma County Marshes Comment
  CAS-BOT-BC141952  Potentilla anserina subsp. pacifica Peter Rubtzoff 1954-8-9 1659 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  SEINET12052828  Prosartes hookeri F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -57 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC159826  Prunus angustifolia Peter Rubtzoff 1952-5-31 1107 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  UCD113175  Prunus cerasifera Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 75 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. S of Sonoma Creek, 1/8 mile beginning of Hillside Trail (lower slope). 381 Comment
  CAS-BOT-BC159902  Prunus emarginata T. E. Rawlins 1942-9-1 s.n. Sonoma Fort Ross Comment
  UCD160846  Prunus virginiana var. demissa James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 s.n. Sonoma Truit Creek. (Coordinates, and elevation estimated by label maker.) 426 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-BC356928  Pseudognaphalium californicum G. DeNevers 1981-7-25 1872 Sonoma Pepperwood Ranch. In Garrison Canyon Comment
  CAS-BOT-BC356929  Pseudognaphalium californicum G. DeNevers 1981-6-15 1531 Sonoma Pepperwood Ranch. Below the big spring below the 180 deg. turn in the road S of the aluminum gate by the orange tree Comment
  CAS-BOT-BC361615  Pseudognaphalium stramineum A. A. Heller 1982-5-27 s.n. Sonoma Bodega Bay Comment
  UC75921  Pseudognaphalium thermale Miss M. Alice King 1896-9-1 Sonoma near Healdsburg Comment
  UCD133373  Pseudotsuga menziesii var. menziesii Beecher Crampton 1960-10-10 5789 Sonoma 5 miles northwest of Calistoga, Franz Valley, along Highway 128. Comment
  SEINET5345374  Pseudotsuga menziesii var. menziesii L. Fallon 1939-1-6 s.n. Sonoma 10 miles north of Guerneville Comment
  CAS-BOT-BC176115  Psilocarphus Peter Rubtzoff 1963-7-14 5203 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  CAS-BOT-BC176130  Psilocarphus Peter Rubtzoff 1971-6-10 6530 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  UCD150849  Psilocarphus chilensis Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  CAS-BOT-BC361862  Psilocarphus oregonus Alice Eastwood 1921-4-24 10330 Sonoma Santa Rosa Comment
  CAS-BOT-BC362080  Psilocarphus tenellus H. L. Mason 1934-4-28 8083 Sonoma Jensen's Ranch, Dohrmann Creek Comment
  CAS-BOT-BC72691  Pteridium aquilinum Peter Rubtzoff 1958-8-23 3906 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Road) Comment
  CAS-BOT-BC421373  Pterostegia drymarioides Greg de Nevers 1990-4-19 9666 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. On south slope of Telegraph Hill. 457 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
  CAS-BOT-BC334469  Pyracantha fortuneana G. K. Helmkamp; E. A. Helmkamp 2010-6-5 16254 Sonoma North Coast Ranges: junction of Martinelli Rd and River Rd, 4.65 air mi. due E of Guerneville 9 Comment
  JEPS58840  Pyrola aphylla M. E. and E. Van E. Ferguson Jun 8-10 1919 Sonoma Near Gurneville Comment
  CAS-BOT-BC94231  Quercus X eplingii G. De Nevers 1981-9-5 1812 Sonoma Pepperwood Ranch. Bottom of Bauer's driveway, near Hansel's Corral Comment
  CAS-BOT-BC94234  Quercus X eplingii Peter H. Raven 1955-8-27 8757 Sonoma 3.2 mi N of Sears Point on State Route 37 Comment
  CAS-BOT-BC61633  Quercus agrifolia Walter Knight; Irja Knight 1963-8-23 407 Sonoma Joosh Ranch, Calistoga Rd Comment
  POM166598  Quercus agrifolia A. A. Heller, H. E. Brown 1902-4-15 s.n. Sonoma Santa Rosa Creek Comment
  UC1193299  Quercus agrifolia P. Zinke 1950-4-25 116 Sonoma 4 mi e Cloverdale (Quad. 61A4) 365 Comment
  UC503094  Quercus agrifolia Joseph P. Tracy 1930-11-30 9271 Sonoma creek below Knights Valley; North Coast Ranges 152 Comment
  SEINET8981498  Quercus agrifolia L. Fallon 1939-1-6 s.n. Sonoma Santa Rosa Comment
  CDA12908  Quercus agrifolia var. agrifolia G. F. Hrusa, R. Gross 1996-3-31 12741 Sonoma North Coast Biodiversity Arena; On flats near residences of Foote Ranch, NE corner of Hwy 128 and Ida Clayton Rd. Approx. 10 m. N of Calistoga. Comment
  OBI37030  Quercus garryana var. garryana P. C. Pende 1979-10-7 s.n. Sonoma On hwy 116 3 mi from Sebastopol Comment
  CAS-BOT-BC105483  Quercus kelloggii A. A. Heller; H. E. Brown 1902-3-17 5085 Sonoma Hills 8 miles NE of Santa Rosa Comment
  CDA12817  Quercus kelloggii G. F. Hrusa, R. Gross 1996-3-8 12651 Sonoma North Coast Biodiversity Arena; Near intersection of Ida Clayton Rd. and Hwy 128 on Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  CDA31848  Quercus kelloggii D. G. Kelch 2006-10-4 6 .496 Sonoma Entrance to Bouverie Reserve. 2 km N of Agua Caliente along Rte 12. Comment
  OBI4985  Quercus kelloggii Lewis S. Rose 1964-6-27 64058 Sonoma 2 mi N of Sonoma 274 Comment
  SEINET2066832 Image available Quercus kelloggii Lewis S. Rose 1964-6-27 Sonoma 2 miles n of Sonoma 274 Comment
  SEINET3144234  Quercus kelloggii Unknown 1952-9-20 2620 Sonoma Voight Ranch, ca. 1.25 mi (airline) SW of Cunningham, along a lane running E from the Voight farmhouse Comment
  CAS-BOT-BC62846  Quercus lobata Dorothy Scherer 1996-10-14 74 Sonoma North of barn off Deaview Rd. SE corner of Fort Ross State Historic Park 441 Comment
  RSA169363  Quercus lobata L. S. Rose 1964-6-27 64059 Sonoma 2 miles north of Sonoma. 274 Comment
  UCD46789  Quercus lobata G. L. Stebbins Jr. 1945-10-7 3585 Sonoma 2 miles northwest of Kenwood. Comment
  UCD46874  Quercus lobata J. M. Tucker 1950-11-5 2010 Sonoma Large tree beside Highway 28, ca. 6 miles northwest of Calistoga, in Sonoma County, California. Comment
  SEINET12034642  Quercus lobata L. H. Pammel 1899-1 112 Sonoma Asti Comment
  CAS-BOT-BC134866  Quercus wislizeni Steven Barnhart 1994-6-5 s.n. Sonoma Salt Point State Park E of Highway 1, near junction of fire road up to the meadow and the rail to the Pygmy Forest Comment
  RSA82770  Ranunculus californicus var. cuneatus R. Miller 1949-4-6 28 Sonoma along coast beside Hwy1, 5 miles S of Jenner Comment
  UC9461  Ranunculus lobbii J. Burtt Davy 1896-3-13 1659 Sonoma Cujadera Comment
  UC634968  Ranunculus muricatus H. L. Mason 1928-4-13 4324 Sonoma near Petaluma Comment
  UCD67951  Ranunculus muricatus Wesley Ebert 1977-4-9 2 Sonoma Crane Creek, downstream from Pressley Rd. Growing in low spot of short, grazed grassland. Clayey soil. Bright sunshine. Yellow flowers. 106 Comment
  UCD96257  Ranunculus muricatus Robert F. Thorne 1965-4-19 34273 Sonoma on Titus Ranch, Valley Ford. 18 Comment
  UC1126138  Ranunculus orthorhynchus var. bloomeri C. M. Belshaw 1936-3-7 1555 Sonoma 1 mi ne Occidental; Sebastopol Quadrangle Comment
  UC205821  Ranunculus orthorhynchus var. bloomeri A. A. Heller 1902-3-14 5061 Sonoma near Windsor Comment
  CAS-BOT-BC251225  Ranunculus orthorhynchus var. platyphyllus Peter Rubtzoff 1962-5-11 4827 Sonoma Freestone marsh. Comment
  RSA534613  Ranunculus orthorhynchus var. platyphyllus Peter Rubtzoff 1962-5-11 4827 Sonoma Freestone Marsh Comment
  JEPS18121  Ranunculus pusillus Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-31 5677 Sonoma above Canyon of Big Austin Creek (4 mi n of Cazadero, above Arroyo Gun Club); Onion Pond 154 Comment
  UC639127  Ranunculus pusillus G. Thomas Robbins 1937-5-23 181 Sonoma near Wright School (on hwy between Santa Rosa and Sebastopol, edge of vernal pool) Comment
  UC118347  Ranunculus pusillus Katharine Brandegee 1905-6-8 Sonoma bet. Santa Rosa and Sebastopol (along the electric line) Comment
  CAS-BOT-BC427548  Reseda luteola Walter Knight; Irja Knight; Tiffany Knight 1985-8-8 5142 Sonoma Willow Creek Road ca 3 mi from Coleman Valley road. Comment
  UCD135421  Rhagadiolus stellatus Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1778 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 south of Sonoma Creek approximately 150 yards 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 Comment
  UCD135429  Rhagadiolus stellatus Caitlin Lewis; William Mutch 1993-4-17 25 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 Mtn 1 mile. Near visitor center. Along Sonoma Creek. 365 Comment
  UC1121738  Rhamnus californica C. M. Belshaw 1936-3-7 1558 Sonoma 0.25 mi w Trenton; Sebastopol Quad. 182 Comment
  UC18564  Rhamnus californica subsp. californica Mrs. Newhall 1901-1 Sonoma Camp Meeker Comment
  CAS-BOT-BC196915  Rhododendron James McMurphy 1909-5-29 s.n. Sonoma Between Geyser Mountain and the Geysers Comment
  CAS-BOT-BC53742  Rhododendron columbianum Peter Rubtzoff 1951-6-2 106 Sonoma Pitkin Marsh, near Forestville - Western branch of the Upper Marsh Comment
  CAS-BOT-BC53746  Rhododendron columbianum Ella Dales Cantelow 1941-6-7 3643 Sonoma 5 mi. n. of Fort Ross. Hwy 1 Comment
  UCD117871  Rhododendron columbianum J. M. Tucker 1958-5-24 3387 Sonoma Northwest end of Pitkin Marsh, ca. 1 1/4 miles east-southeast of Forestville. Comment
  CAS-BOT-BC200338  Rhododendron occidentale var. occidentale Volney Rattan 1877-6-17 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC200339  Rhododendron occidentale var. occidentale H. E. McMinn 1922-6-7 181 Sonoma Near Monte Rio Comment
  CDA32769  Rhododendron occidentale var. occidentale G. F. Hrusa 1990-6-2 8062 Sonoma Outer North Coast Ranges; Skagg's Springs road from Stewart's Point, approx. 1 mile inland from Hwy 1. 91 Comment
  CAS-BOT-BC111873  Rhynchospora alba Hans Leschke; John Thomas Howell; Baker 1945-7-18 s.n. Sonoma Pitkin Marsh Comment
  RSA90513  Rhynchospora alba Milo S. Baker 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog Comment
  CAS-BOT-BC111883  Rhynchospora californica Peter Rubtzoff 1951-7-28 560 Sonoma Pitkin Marsh, Lower part of the Upper Marsh Comment
  CAS-BOT-BC111893  Rhynchospora californica John Thomas Howell 1945-7-18 21321 Sonoma Pitkin Marsh 182 Comment
  CHSC65438  Rhynchospora californica J. T. Howell 1945-7-18 21321 Sonoma Pitkin Marsh. Comment
  NY51372  Rhynchospora californica J. T. Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 mi N of Sebastopol. Comment
  CAS-BOT-BC111901  Rhynchospora capitellata Hans Leschke 1945-7-18 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111935  Rhynchospora recognita Peter Rubtzoff 1951-7-21 506 Sonoma Pitkin Marsh, Damp, open area between the Upper and Lower Marshes. Comment
  UC58224  Ribes californicum A. A. Heller 1903-4-24 6613 Sonoma near Cazadero Comment
  CAS-BOT-BC93053  Ribes californicum var. californicum A. A. Heller; H. E. Brown 1902-3-21 5113 Sonoma Hills southeast of Santa Rosa. Comment
  UCR255687  Ribes divaricatum Greg de Nevers 1998-4-27 11204 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 197 Comment
  CAS-BOT-BC168996  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1962-4-11 4786 Sonoma Laguna de Santa Rosa east of Cunningham, near Llamo Road Comment
  CAS-BOT-BC169002  Ribes divaricatum var. pubiflorum A. A. Heller; H. E. Brown 1902-3-12 5038 Sonoma Sonoma Creek, eastern base of Mt. Hood Comment
  RSA0025036  Ribes divaricatum var. pubiflorum L. S. Rose 1962-4-11 62018 Sonoma Laguna de Santa Rosa. 0.5 mile E of Cunningham. 15 Comment
  CAS-BOT-BC198924  Ribes roezlii var. cruentum R. Bacigalupi 1948-3-6 2857 Sonoma Slopes of Mayacamas Range, on road from the Geysers to Geyserville. Comment
  JEPS76923  Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-2-24 2056 Sonoma 4 mi s State Highway 12 (above State Highway 1) 15 Comment
  CAS-BOT-BC168764  Ribes victoris A. A. Heller 1903-4-24 6615 Sonoma Woods near Cazadero Comment
  POM203710  Romanzoffia californica J. T. Howell 1931-4-18 6411 Sonoma Larkspur Rock near Bodega Bay. Comment
  CAS-BOT-BC376258  Rorippa Greg de Nevers 1992-5-5 10141 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. West of Three Tree Hill 475 Comment
  CAS-BOT-BC74716  Rorippa curvisiliqua Peter Rubtzoff 1986-9-28 9750 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC152665  Rosa californica Greg de Nevers 1995-6-3 10747 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, along Franz Creek, just below Mountain House 487 Comment
  CAS-BOT-BC146772  Rosa gymnocarpa Walter Knight; Irja Knight 1964-11-3 762 Sonoma Cooper's Grove, Sonoma Mt. Road Comment
  CAS-BOT-BC361345  Rosa spithamea Greg de Nevers 1997-4-24 10967 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC262828  Rubus Peter Rubtzoff 1964-5-20 5306 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC262829  Rubus Peter Rubtzoff 1959-6-6 4089 Sonoma Willow Creek Marsh. Comment
  UC12954  Rubus leucodermis J. Burtt Davy July 1896 Sonoma near Guerneville; near Guerneville Comment
  UCD160015  Rubus leucodermis James A. Neilson Jr.; Teresa A. Sholars 1975-3-27 3291 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  SD254702  Rubus parviflorus Ann Howald 2015-4-1 3312 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 11.5 miles west of intersection with Rockpile Rd, Warm Springs drainage. 408 Comment
  UCD113851  Rubus parviflorus Mary M. Hektner 1974-6-28 85 Sonoma Unit 21 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD113895  Rubus parviflorus T. E. Weier 1942-5-20 s.n. Sonoma Gualala River. Comment
  RSA800356  Rubus spectabilis Peter Rubtzoff 1964-5-20 5306 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC157174  Rubus ursinus Alice Eastwood 1915-6-29 4803 Sonoma Bodega Point Comment
  CAS-BOT-BC157184  Rubus ursinus John H. Thomas 1976-6-15 18267 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 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
  CAS-BOT-BC173544  Rumex Peter Rubtzoff 1964-6-24 5387 Sonoma Coleman Marsh. Salmon Creek. Comment
  UCD148370  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  UCD166089  Rumex Peter Rubtzoff 1971-6-29 6579 Sonoma Pitkin Marsh, Area 27. Comment
  UCD101015  Rumex acetosella Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 29 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SD39768  Rumex acetosella E. A. Purer 1932-7-21 4039 Sonoma Bodega Bay Comment
  UCD158827  Rumex crispus James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2897 Sonoma old mine on the Geysers Road, west of The Geysers, Section 14. (Elevation estimated by label maker using Google Earth.) 548 Comment
  CAS-BOT-BC433413  Rumex crispus G. DeNevers 1981-5-30 1395 Sonoma Pepperwood Ranch. Near Pippindale Pond. Comment
  UCR279637  Rumex fueginus Peter Rubtzoff 1958-9-27 4007 Sonoma Laguna de Santa Rosa, northeast of Graton, near Guerneville Road 18 Comment
  CAS-BOT-BC433741  Rumex occidentalis Mary P. Wells 1987-2-28 846 Sonoma Within the fork in the north creek south of Pacific Reach. The Seaside Meadow of The Sea Ranch. Comment
  RSA32478  Rumex salicifolius var. transitorius Milo S. Baker 1945-8-14 s.n. Sonoma Santa Rosa Junior College, Santa Rosa, Comment
  SEINET7042613  Rupertia physodes A. G. Vestal 1947-5-16 s.n. Sonoma 8.1 miles east of Winsor.Mark West Springs quadrangle UTM Zone 10, 531876mE, 4267566mN. Comment
  UCD108456  Rupertia physodes P. B. Kennedy 1915-5-31 s.n. Sonoma Woods near Annapolis. Comment
  UC450  Ruppia maritima J. Burtt Davy 1897-9-19 4034 Sonoma Petaluma Comment
  SEINET11764773  Ruppia maritima P. G. Connors 1991-1 s.n. Sonoma Bodega Head Comment
  RSA658431  Rytidosperma pilosum J. C. Roos 1957-7-2 6651 Sonoma Miller ridge Comment
  CAS-BOT-BC249307  Sagina Peter Rubtzoff 1959-4-18 4026 Sonoma Laguna de Santa Rosa, northeast of Graton, ca. 0.5 miles north of Guerneville Road crossing. Comment
  CAS-BOT-BC445688  Sagittaria cuneata Peter Rubtzoff 1955-10-12 2167 Sonoma East Guernewood, near Guerneville. Comment
  CAS-BOT-BC445689  Sagittaria cuneata Peter Rubtzoff 1960-4-30 4311 Sonoma Laguna de Santa Rosa northeast of Graton (ca. 1/2 mi. n. of Guerneville Road). Comment
  CAS-BOT-BC445691  Sagittaria cuneata Peter Rubtzoff 1955-7-30 1993 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC445698  Sagittaria cuneata Peter Rubtzoff 1963-7-27 5211 Sonoma Laguna de Santa Rosa east of Graton. Comment
  UCD151195  Salix James A. Neilson Jr. 1974-7-10 2975 Sonoma Mayacmas Mountains, road to PG and E geothermal units 9 and 10. (Elevation estimated using topo map by label maker.) 975 Comment
  UCR249074  Salix Peter Rubtzoff 1971-9-1 6679 Sonoma Spring Creek Reservoir area, east of Santa Rosa 87 Comment
  RSA0015566  Salix Peter Rubtzoff 1973-8-27 7264 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC126267  Salix X sepulcralis Peter Rubtzoff 1952-3-23 905 Sonoma Southern half of Lower Marsh Comment
  UCR249334  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh 71 Comment
  CAS-BOT-BC103082  Salix bonplandiana M. S. Baker 1930-4-11 3946 Sonoma Banks of Santa Rosa Creek Comment
  CAS-BOT-BC103092  Salix bonplandiana Peter Rubtzoff 1960-5-29 4421 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road) Comment
  CAS-BOT-BC102863  Salix breweri John Thomas Howell 1933-4-2 10940 Sonoma slopes of Mt. Hood, Sonoma Creek Canyon Comment
  CAS-BOT-BC103946  Salix exigua Peter Rubtzoff 1960-5-29 4422 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road) Comment
  POM106848  Salix exigua Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan's Mills. Comment
  UC490514  Salix exigua var. hindsiana Joseph P. Tracy 1932-5-8 9899 Sonoma in river bed Geyserville; Northern Coast Ranges Comment
  CAS-BOT-BC106847  Salix hookeriana Mary P. Wells 1981-4-18 s.n. Sonoma Draw, Unit 24, The Sea Ranch Comment
  CDA42346  Salix laevigata D. G. Kelch 2012-5-2 12 .064 Sonoma Dry Creek Valley; near Preston Organic Winery along tributary of Dry Creek. Comment
  UC453097  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 15 Sonoma Bohemian Grove near Monte Rio (lower bank of Russian R.); Russian R. Comment
  UC726800  Salix lasiandra subsp. lasiandra A. A. Heller 1900-3-18 5098 Sonoma Santa Rosa Creek near Santa Rosa Comment
  CAS-BOT-BC128054  Salix lasiandra var. lasiandra Peter Rubtzoff 1962-5-5 4806 Sonoma Fife Creek Marsh, open bank of Fife Creek - Sonoma County Marshes Comment
  CAS-BOT-BC128067  Salix lasiandra var. lasiandra Baker; Ball; Bracelin; Crum 1931-5-9 347 Sonoma About 2 km. east of Bodega Bay. Comment
  CAS-BOT-BC107092  Salix lasiolepis Peter Rubtzoff; J. Eckenwalder 1973-10-3 7333 Sonoma along Salmon Creek 0.75 mi. northwest of Freestone Comment
  RSA534495  Salix lasiolepis Peter Rubtzoff 1964-8-26 5487 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road 213 Comment
  UC1042518  Salix lasiolepis Peter Rubtzoff 1952-3-23 872 Sonoma Upper Marsh Pitkin Marsh (lower part, near Forestville) Comment
  UC482062  Salix lasiolepis Baker, Ball, Bracelin, and Crum 1931-5-9 345 Sonoma about 2 km e Bodega Bay (creek bed) Comment
  UC511621  Salix lasiolepis W. A. Setchell 1933-7-2 1 Sonoma well away from Russian R. Bohemian Grove (Monte Rio) Comment
  UC517939  Salix lasiolepis W. A. Setchell 1934-3-17 Sonoma Monte Rio; right-hand side of road entering Bohemian Grove Comment
  UC517941  Salix lasiolepis W. A. Setchell 1934-3-17 Sonoma Monte Rio; left hand side of road entering Bohemian Grove Comment
  UC66165  Salix lasiolepis A. A. Heller 1902-3-28 5177 Sonoma Bodega Bay Comment
  CAS-BOT-BC128317  Salix lasiolepis var. lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  CAS-BOT-BC125698  Salix melanopsis W. A. Setchell 1931-8-1 s.n. Sonoma Bohemian Grove, near Monte Rio, in gravelly bed of Russian River Comment
  CAS-BOT-BC125699  Salix melanopsis H. E. McMinn 1922-6-7 183 Sonoma Russian River near Guerneville Comment
  RSA534563  Salix melanopsis Peter Rubtzoff 1970-9-2 6367 Sonoma Russian River bottom at Mirabel Park. Comment
  UC482049  Salix melanopsis W. A. Setchell 1931-8-1 Sonoma Bohemian Grove near Monte Rio (Russian R.); Russian R. Comment
  CAS-BOT-BC126182  Salix scouleriana Peter Rubtzoff 1955-8-13 2048 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC126192  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  SBBG28810  Salix scouleriana Baker, C. R. Ball, H. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental, on Occidental grade Comment
  SJSU192  Salix scouleriana Baker, Ball, Bracelin & Crum 1931-5-9 342 Sonoma 2 km E of Occidenta on Occidental Grade Comment
  UC524788  Salix scouleriana W. A. Setchell 1934-7-10 6 Sonoma Coast Hwy. n. of Fort Ross Comment
  UC524790  Salix scouleriana W. A. Setchell 1934-7-10 8 Sonoma Ridge Hwy. above Fort Ross Comment
  CAS-BOT-BC128901  Salix sitchensis W. A. Setchell 1934-7-10 7 Sonoma Kru's Ranch, Coast Highway above Fort Ross 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
  CAS-BOT-BC128909  Salix sitchensis Mary P. Wells 1981-4-19 s.n. Sonoma East of Coast Highway, part way up Moonraker Rd., The Sea Ranch Comment
  CAS-BOT-BC128910  Salix sitchensis A. A. Heller 1902-3-12 5044 Sonoma Sonoma Creek, foot of Mt. Hood Comment
  RSA304941  Salix sitchensis James R. Shevock 1971-1-30 625 Sonoma Along Russian River. 12 Comment
  SBBG57991  Salix sitchensis C. R. Ball, H. P. Bracelin, H. E. Parks, S. Parks 1931-4-21 36 Sonoma Maacama Crk, 25 km NW of Calistoga Comment
  UC1173578  Salix sitchensis Joseph P. Tracy 1935-8-18 14743 Sonoma w. of Knight's Valley (Mayacamas Creek); Mayacamas Creek 152 Comment
  UC66174  Salix sitchensis A. A. Heller 1902-3 5044 Sonoma foot of Mt. Hood (Sonoma Creek); , Sonoma Creek Comment
  UCD158832  Salvia James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2922 Sonoma the Geysers, Section 14. (Elevation estimated by label maker using Google Earth.) 533 Comment
  CAS-BOT-BC221106  Salvia sonomensis Alice Eastwood 1915-6-5 4601 Sonoma Petrified Forest Comment
  CAS-BOT-BC225212  Salvia sonomensis J. Clausen 1935-5-23 1073 b Sonoma 0.3 mi. N. of entrance to Petrified Forest Comment
  UCR30517  Salvia sonomensis John C. Roos 1939-4-1 311 Sonoma Hood Peak Range, west of Calistoga. Comment
  POM126741  Salvia sonomensis H. P. Chandler 1907-4-27 7545 Sonoma Napa County: St. Helena to Santa Rosa via spring Mt. Comment
  OBI39520  Sambucus racemosa var. racemosa F. H. Utech, Walter and Irja Knight, Irja Knight 1984-4-17 84 -160 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek rd 145 Comment
  CDA10850  Sanicula laciniata G. F. Hrusa, G. L. Stebbins 1994-4-8 11726 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  UC923166  Sanicula laciniata Freed W. Hoffman 1950-5-24 3281 Sonoma North Coast Ranges, The Island, Devil Creek, a tributary of East Austin Creek Devil Creek; North Coast Ranges, The Island, Devil Creek Comment
  UCD128030  Sanicula laciniata G. F. Hrusa; R. Gross 1996-3-8 12656 Sonoma Northcoast Biodiversity Arena, Foote Creek. Foote Ranch at corner of Ida Clayton Road and Highway 128. 250 Comment
  UCD166462  Saponaria Peter Rubtzoff 1955-9-10 2127 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
  UCD161371  Saxifraga mertensiana James A. Neilson Jr. 1976-6-18 3986 Sonoma Mayacmas Mountains. Junction of Squaw Creek and Big Sulphur Creek. (Elevation and exact location estimated by label maker.) 731 Comment
  RSA178019  Scandix pecten-veneris R. F. Thorne 1965-4-19 34278 Sonoma Titus Ranch, Valley Ford. 18 Comment
  RSA52688  Scandix pecten-veneris I. L. Wiggins 1949-4-30 12059 Sonoma Roadside 6.8 miles east of Santa Rosa on road to Calistoga Comment
  CAS-BOT-BC283145  Schedonorus arundinaceus Mary P. Wells 1984-5-7 259 Sonoma By guest parking lot, Friends House, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC111397  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1951-7-7 383 Sonoma Eastern branch of the Upper Marsh in the open on damp ground. Comment
  UCD50086  Schoenoplectus acutus var. occidentalis P. G. Connors 1991-8-15 205 Sonoma In Clark Marsh with Typha latifolia. Comment
  CAS-BOT-BC111631  Schoenoplectus californicus Peter Rubtzoff 1962-8-3 5030 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC111634  Schoenoplectus californicus Peter Rubtzoff 1963-9-1 5249 Sonoma Bennett Mtn. Lake. 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
  UCD126452  Schoenoplectus pungens var. badius D. C. Fruchtenicht 1965-5-1 s.n. Sonoma around 50 yards from sea, southwest exposure; Marine Biological Station, Horseshoe Cove, Bodega Head. Comment
  CAS-BOT-BC111836  Schoenoplectus tabernaemontani Peter Rubtzoff 1955-7-9 1930 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC111843  Schoenoplectus tabernaemontani Peter Rubtzoff 1962-7-4 4970 Sonoma Fitch Mtn. Grove, 2 mi. E of Healdsburg. Comment
  RSA0009470  Schoenoplectus tabernaemontani Marcus E. Jones 1931-7-5 29197 Sonoma Cloverdale. Comment
  UCR255465  Scirpus koilolepis Ann Howald 2014-5-2 3001 Sonoma North Coast, c. 1.5 mi southeast of Del Mar Point 23 Comment
  CAS-BOT-BC111104  Scirpus microcarpus LeRoy Abrams 1920-7-3 7612 Sonoma Near Stewarts Point Comment
  CAS-BOT-BC111116  Scirpus microcarpus Peter Rubtzoff 1955-8-20 2070 Sonoma Bodega Harbor Marsh. Open damp sandy ground bordering the marsh. Comment
  SEINET7883439 Image available Scleropoa rigida Leo Koch 1940-1 964 Sonoma 349 Second Avenue Wood Residence; persisting at this locality for at least 10 years Comment
  CAS-BOT-BC516416  Scoliopus bigelovii Volney Rattan 1880-1-1 s.n. Sonoma Duncan's Mills Comment
  SEINET12050503  Scoliopus bigelovii F. H. Utech 1988-1 88 -231 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Road on CA 1, mile marker 29.90 100 Comment
  SEINET12050506  Scoliopus bigelovii F. H. Utech 1988-1 88 -181 Sonoma 0.2 mi S of Occidental Road on Furlough Road, Sturgeon's Mill 80 Comment
  SEINET12058057  Scoliopus bigelovii F. H. Utech 1988-3-2 88 -013 Sonoma Stillwater Cove Park between CA 1 & Pacific Ocean, 4.5 mi N of Ft. Ross 10 Comment
  SEINET12058069  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
  UCR249341  Scrophularia californica Peter Rubtzoff 1955-8-20 2069 Sonoma Bodega Harbor Marsh 0 Comment
  RSA73968  Sedella pumila Milo S. Baker 1952-4-20 12399 Sonoma East side of Hwy 12 on outcrop of [tuff?] and ca. 0.25 miles N of Caliente. Comment
  UC764995  Sedum radiatum R. F. Hoover 1938-6-14 3608 Sonoma on road to Occidental 2 mi w Graton; w of Graton Comment
  CAS-BOT-BC361395  Sedum spathulifolium Greg de Nevers 1993-5-17 10453 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. 457 Comment
  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
  UC201784  Senecio glomeratus P. B. Kennedy 1914-10-1 Sonoma Del Mar Ranch Comment
  UCD135615  Senecio minimus D. Sampson 1926-7-8 s.n. Sonoma Monte Rio Ranch. Comment
  UCD135623  Senecio minimus Freed W. Hoffman 1946-8-23 796 Sonoma North Coast Ranges. Lone Mountain Farm, near Guerneville. Comment
  UCD133859  Senecio vulgaris Frederica Bowcutt 1996-3-24 2077 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. 1 air mile south of Red Mountian. Along Lower Bald Mtn. Trail on first switchback. 441 Comment
  NY64464  Sequoia sempervirens A. A. Heller 1902-3-16 5080 Sonoma Russian River, near Trenton Comment
  SEINET3876427  Sequoia sempervirens Ralph R. Wilson 1939-7-25 438 Sonoma Ft. Ross. 1/2 mile from ocean.; 0 Comment
  SEINET10827242  Setaria parviflora P. Rubtzoff 1971-9-2 Rubtzoff 6685 Sonoma Todd Road near Stony Point Road. Dry roadside ditch, in the open. Comment
  CAS-BOT-BC240277  Setaria viridis G. DeNevers 1981-6-20 1621 Sonoma Pepperwood Ranch. In Mark West Creek Comment
  CAS-BOT-BC290640  Sidalcea Peter Rubtzoff 1971-6-5 6509 Sonoma Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  RSA253002  Sidalcea diploscypha A. A. Heller 1937-5-9 15337 Sonoma Roadside bank in clay soil between Hopland and Mountain House. Comment
  RSA293430  Sidalcea diploscypha Reino Alava 1958-5-24 2060 Sonoma About 4 miles east of Occidental Comment
  UCD116613  Sidalcea diploscypha Frederica Bowcutt; Jeff Kennedy 1994-5-21 1800 Sonoma about 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa, about 18 air miles NW of Napa, and about 1.5 air miles NE of Kenwood. Along the Meadow Trail, about 0.25 mile from the trail head. 396 Comment
  RSA87994  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19586 Sonoma 8 miles N. of Ft Ross. Comment
  UCD116808  Sidalcea malviflora M. Wiesendanger 1927-5-5 704 Sonoma Sonoma County. Comment
  UCSB50223  Sidalcea malviflora Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach; T6N R11W 16 Comment
  SEINET7042680  Sidalcea malviflora subsp. laciniata A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  CAS-BOT-BC213167  Sidalcea oregana subsp. valida Milo S. Baker 1932-8-15 6013 Sonoma Marshy road ditch just W. of Kenwood. Comment
  UC1601098  Sidalcea oregana subsp. valida Mrs. Booth Aug. 1894 Sonoma Knight's Valley Comment
  UC112916  Silene californica Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  UCD98715  Silene gallica Terri Williamson 1990-5-20 57 Sonoma Bayflat Road, Bodega Bay. 3 Comment
  SEINET11933908  Silene gallica F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -185 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  UCD98635  Silene gallica Frederica Bowcutt; Botany 102 Students 1994-5-21 1814 Sonoma Sugarloaf Ridge State Park; about 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. Along Meadow Trail about 3/4 mile from trailhead. East from trail about 100 yards. 426 Comment
  UCD98711  Silene gallica Rimy Waraich; Patti Togioka 1993-5-8 240 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. Ponygate Trail. 365 Comment
  UCD160832  Silene laciniata subsp. californica James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3361 Sonoma Section 10, on the Geysers Road west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC389224  Silene laciniata subsp. californica G. DeNevers 1981-6-27 1698 Sonoma Pepperwood Ranch. Along Franz Valley Road Comment
  UCD98974  Silene laciniata subsp. californica K. Esau 1933-7-7 s.n. Sonoma Calistoga, near Petrified Forest. Comment
  SEINET11807289  Silybum marianum F. H. Utech 1986-1 86 -127 Sonoma 3 mi SW on Sonoma Mt. Rd from jct with CA 12, near Jack London Historical Park 250 Comment
  JEPS53886  Sisymbrium altissimum R. Kuhn 1914-6-1 Sonoma Sonoma Comment
  SEINET12050589  Sisyrinchium bellum F. H. Utech 1988-1 88 -190 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh 10 Comment
  SEINET7042393  Sisyrinchium bellum A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  SEINET3876315  Sisyrinchium californicum James Faro 1962-4-22 27 Sonoma Ocean Cove Ranch, about 4 miles north of Fort Ross on Highway 1.; 0 Comment
  UC672674  Sisyrinchium californicum H. L. Mason 1928-4-8 4284 Sonoma Fort Ross Comment
  UC1134661  Smilacina racemosa E. Armstrong 1934-3-26 917 Sonoma 2 mi s Camp Meeker; Sebastopol Quadrangle Comment
  CAS-BOT-BC166972  Solanum Peter Rubtzoff 1954-9-6 1734 Sonoma Guerneville Marsh. Comment
  RSA227219  Solanum americanum Peter Rubtzoff 1963-10-5 5287 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  UCR255057  Solidago californica Greg de Nevers 1989-9-15 9104 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC365660  Solidago spathulata L. R. Abrams 1920-7-3 7608 Sonoma Near Stewarts Point Comment
  CAS-BOT-BC365655  Solidago spathulata Mary P. Wells 1972-8-4 s.n. Sonoma The Sea Ranch Comment
  UC485623  Solidago velutina subsp. californica Miss C. M. Huak August 1912 Sonoma Monte Rio Comment
  CAS-BOT-BC365267  Solidago velutina subsp. californica G. DeNevers 1981-7-19 1765 Sonoma Pepperwood Ranch. Near the Trapper's Cabin Comment
  CAS-BOT-BC173670  Soliva sessilis Peter Rubtzoff 1963-5-26 5137 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC173686  Soliva sessilis Peter Rubtzoff 1974-5-18 7433 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173844  Soliva sessilis Peter Rubtzoff 1969-6-22 6101 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC365967  Soliva sessilis Alice Eastwood 1921-4-24 10377 Sonoma Santa Rosa Comment
  UCD148378  Sonchus Peter Rubtzoff 1955-9-24 2153 Sonoma Duncans Mills Marsh. Comment
  UCD133992  Sonchus asper subsp. asper Frederica Bowcutt 1996-5-24 2171 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 near entrance. Comment
  CAS-BOT-BC236592  Sorghum halepense Walter Knight; Irja Knight 1963-9-29 227 Sonoma Near Lindberg Lane on Lakeville Highway, Petaluma Comment
  RSA477990  Spergula arvensis E. A. Purer 1932-7-21 16084 Sonoma Bodega Bay. Comment
  UCR275245  Spergularia Peter Rubtzoff 1971-7-3 6591 Sonoma Intermittent lake off west side of Hwy 1, 0.7 miles SE of Salmon Creek crossing 30 Comment
  UCD99212  Spergularia macrotheca Michael Fleschner 1965-5-1 8 - Sonoma University Marine Laboratory, Horsehoe Cove, Bodega Head. 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
  UCD99235  Spergularia marina S. F. Bailey 1951-6-1 s.n. Sonoma Skagg's Island, north of Plack Point cutoff (Highway 48). Comment
  CAS-BOT-BC257342  Stachys Peter Rubtzoff 1977-9-3 9124 Sonoma Perry Marsh. Comment
  CAS-BOT-BC500697  Stachys Peter Rubtzoff 1958-7-5 3737 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC502056  Stachys Peter Rubtzoff 1965-10-10 5658 Sonoma Bodega Head Marsh Comment
  RSA82588  Stachys ajugoides F. W. Peirson 1925-8-8 6341 Sonoma Roadside 6 miles south of Santa Rosa 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
  UCR218631  Stellaria media George K. Helmkamp, E. A. Helmkamp 2010-6-4 16216 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), about five miles east of its junction with US-101, 5.85 air mi. east (88 deg. ) of Windsor 145 Comment
  UCR74759  Stipa formicarum M. E. Barkworth, D. Amme 1989-6-15 5170 Sonoma c. 2 mi north of Jenner on US Hwy 1 70 Comment
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Aug 4 2008
  CAS-BOT-BC61146  Streptanthus barbiger Milo S. Baker 1946-7-4 11519 Sonoma Harrison Grade, 2 miles northeast of Occidental. Comment
  CAS-BOT-BC61158  Streptanthus barbiger R. D. Stone; G. Clifton 1983-6-16 549 Sonoma Along Burma (Kincaid) Road, headwaters of the Cobb Creek drainage. Ca. 0.4 mile southwest of Geyser Rock. 1005 Comment
  UC1492715  Streptanthus barbiger Freed W. Hoffman 1948-6-1 2334 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  CAS-BOT-BC61157  Streptanthus barbiger R. D. Stone 1983-6-14 534 Sonoma Headwaters of Squaw Creek drainage, 0.8 mile northwest of Geyser Rock. 960 Comment
  NY185741  Streptanthus brachiatus A. R. Kruckeberg 1949-6-5 2905 Sonoma Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line. "This locality is near junction of Socrates Mine road with Pine Flat-Middletown road on ridge west of canyon of Big Sulphur Creek. The Napa-Lake county line is 914.4 Comment
  UC1292754  Streptanthus glandulosus Freed W. Hoffman 1948-5-24 2337 Sonoma Austin Creek road just above Great Easten Quicksilver Mine North Coast Ranges Comment
  UCD151165  Streptanthus glandulosus James A. Neilson Jr. 1974-3-27 3018 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  SEINET10947471 Image available Streptanthus glandulosus Fred W. Hoffman 1948-7-9 Hoffman 2311 Sonoma Serpentine soil 6.9 miles north of California-Oregon line on Happy Camp-O'Brien road, Josephine County Comment
Read comments
May 8 2018
  UC10874  Streptanthus glandulosus subsp. glandulosus F. T. Bioletti 1892-5-1 Sonoma Hood's Peak Comment
  UC117404  Streptanthus glandulosus subsp. glandulosus Michener and Bioletti 1892-5-1 Sonoma Hood's Peak Comment
  JEPS83491  Streptanthus glandulosus subsp. secundus Jack and Betty Guggolz 1986-4-23 863 Sonoma w-facing steep bank on Kelly Rd 0.2 mi w junction with Rockpile Road (ca 15 mi nw of Healdsburg) Comment
  UC1492791  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-16 2346 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  UC985953  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-17 2343 Sonoma Red Slide at headwaters of creek North Coast Ranges, East Austin Creek Comment
  CAS-BOT-BC87292  Streptanthus glandulosus subsp. secundus Mrs. H. C. Campbell 1921-5-10 s.n. Sonoma Fitch Mountain. Comment
  UC1492747  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1951-5-24 3861 Sonoma Blue Knoll North Coast Ranges, Ungewitter Ranch (w of Cazadero) Comment
  UC1492769  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-25 3396 Sonoma near Guerneville; North Coast Ranges, Great Eastern Quicksilver Mines 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
  UCD167364  Streptanthus morrisonii James Neilson Date Unknown 4058 Sonoma Creek northeast of Layton Mine buildings. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167365  Streptanthus morrisonii James Neilson Date Unknown 4059 Sonoma Hillside due east of Layton Mines. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD168052  Streptanthus morrisonii James Neilson 1981-5-15 4031 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
  UC1102675  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
  UC1492812  Streptanthus tortuosus Freed W. Hoffman 1949-7-9 2849 Sonoma on road from Healdsburg to Geysers 1.4 mi from Geyser-Cloverdale road (ledge 200 ft above road); North Coast Ranges 624 Comment
  UCD166329  Symphoricarpos Peter Rubtzoff 1967-9-2 5877 Sonoma Freestone Marsh. Comment
  UCD166492  Symphoricarpos Peter Rubtzoff 1961-9-6 4735 Sonoma Laguna de Santa Rosa area northeast of Graton. Comment
  UCR254879  Symphyotrichum Peter Rubtzoff 1971-8-23 6649 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  CAS-BOT-BC97833  Symphyotrichum chilense Walter Knight; Irja Knight 1963-9-25 118 Sonoma [Coffy] Coffee Lane, Coddington Comment
  UC463221  Symphyotrichum spathulatum L. R. Abrams 1907-8-1 Sonoma Sebastapol Comment
  UC1042435  Symphyotrichum subspicatum Peter Rubtzoff 1951-9-15 748 Sonoma Upper Marsh, Western branch Comment
  RSA155470  Tellima grandiflora L. S. Rose 1962-4-18 62023 Sonoma 1 mile NW of Freestone. 76 Comment
  CAS-BOT-BC399887  Thalictrum polycarpum Greg de Nevers 1996-4-21 10796 A Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  UCD166413  Thermopsis californica var. californica Peter Rubtzoff 1962-6-8 4886 Sonoma Bennett Mountain Lake. Comment
  UC1611636  Thermopsis macrophylla var. macrophylla R. Spellenberg, N. Zucker 1994-6-9 12070 Sonoma 7 air mi se of Stewart's Point (2.3 mi s of Skagg's Springs on road to Plantation) Comment
  UC614842  Thysanocarpus curvipes Beryl O. Schreiber 1932-4-3 195 Sonoma road to Petrified Forest Petrified Forest; road to Petrified Forest Comment
  CAS-BOT-BC66823  Thysanocarpus curvipes John H. Thomas 1969-4-28 14924 Sonoma About 3.6 miles north of Monte Rio. Comment
  CAS-BOT-BC67333  Thysanocarpus radians A. A. Heller; H. E. Brown 1902-4-8 5223 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  RSA0049966  Thysanocarpus radians John H. Thomas 1968-4-4 14268 Sonoma 2.8 miles NE of highway 101 on road to Mark Springs West, along Mark Springs road. Comment
  POM14850  Tonella tenella Michener, Bioletti 1893-04 s.n. Sonoma Adobe Canyon. Comment
  SD131965  Tonella tenella Harry K. Roberts 1968-4-6 Sonoma North side of Mt. Jackson, 1I(c) air-line miles n.ne. of Rio Nido, on road to lookout, ca. 1 mile n.e. of Sonoma Mercury Mine 320 Comment
  CDA16158  Torilis arvensis G. F. Hrusa, R. Gross 1999-6-12 15077 Sonoma North Coast Ranges; Foote Ranch, corner of Ida Clayton Rd & Hwy 128, Knights Valley. 152 Comment
  POM316512  Torilis arvensis Patricia Wilder 1965-6-10 3641 -a Sonoma About one mile from junction of Fort Ross Road and Seaview Road, on Seaview Road 549 Comment
  RSA801567  Torilis arvensis Peter Rubtzoff 1967-7-2 5844 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA47813  Torilis nodosa Roxana S. Ferris, Laura Lorraine 1948-6-9 s.n. Sonoma Franz Valley Road ca. 3/4 mi. from Mark West Road 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
  SBBG34159  Torreya californica L. M. Srivastava 1957-11-1 22 Sonoma Hwy 1, ca. 100 yards S of Fort Ross 30 Comment
  UCD93173  Torreyochloa pallida var. pauciflora A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3582 Sonoma on Occidental Road near Barstow Station. Comment
  UCD93245  Torreyochloa pallida var. pauciflora H. S. Yates 1936-6-16 5590 Sonoma 2 miles SE of Forestville. 30 Comment
  SEINET7295150 Image available Torreyochloa pallida var. pauciflora A. S. Hitchcock 1908-1 2702 Sonoma Sherwood Comment
  UCD112403  Toxicoscordion Christopher Mallek 2008-5-2 HC1- 1 Sonoma Hooker Canyon. 590 Comment
  SD254493  Toxicoscordion fontanum Ann Howald 2015-1-30 3311 Sonoma North Coast: Coastal terrace, ca. 3.0 miles southeast of Del Mar Point. 99 Comment
  UCD139836  Toxicoscordion fremontii Frederica Bowcutt 1996-3-24 2078 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. 1 air mile south of Red Mountian. Along Lower Bald Mtn. Trail on second switchback. 487 Comment
  UCD81429  Tragopogon porrifolius M. Wiesendanger 1927-5-5 s.n. Sonoma Sonoma. Comment
  UCD163995  Trichostema Peter Rubtzoff; Nancy Harrison 1977-8-26 9117 Sonoma False Lake Meadow area, Annadel State Park. Comment
  JEPS63118  Trichostema lanceolatum W. L. Jepson 1895-8-30 14883 Sonoma Petrified Forest Comment
  UC32606  Trichostema lanceolatum Alice King Sep 1896 Sonoma Healdsburg Comment
  OBI13449  Trichostema laxum Robert F. Hoover 1965-6-29 9473 Sonoma N of summit on Harrison Grade rd near Occidental Comment
  UC157931  Trichostema laxum Milo S. Baker 1898-6-12 675 Sonoma Geyser Canyon Comment
  SEINET3153534  Trichostema laxum M. S. Baker 1898-6-12 675 Sonoma Geysers Comment
  UCD117574  Trientalis latifolia Charles B. Heiser Jr. 1946-5-19 1759 Sonoma Russian River near Duncan Mills. Comment
  CAS-BOT-BC166775  Trifolium Peter Rubtzoff 1974-4-17 7376 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC376242  Trifolium Greg de Nevers No date on label 10837 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  JEPS128277  Trifolium Roger Raiche 2005-4-22 013 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA784995  Trifolium Peter Rubtzoff, Nancy Harrison 1974-5-26 7467 Sonoma On Bennett Valley Road, 4.25 mi W of Glen Ellen. 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-BC173537  Trifolium Peter Rubtzoff 1974-5-26 7496 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  JEPS117950  Trifolium Zoya Akulova-Barlow 2005-12-1 Sonoma Cloverdate River Park, Russian River Comment
  OBI12721  Trifolium amoenum Robert F. Hoover 1969-1 Sonoma Comment
  JEPS65920  Trifolium barbigerum var. andrewsii V. Blackney April 1929 Sonoma betw Trenton and Mark West Mt. Oliver School; Santa Rosa Comment
  HSC15107  Trifolium breweri James Faro 1962-4-18 26 Sonoma About 5 mi. N of Geurneville on the Old Cazadero Rd. Comment
  SEINET12166393  Trifolium campestre H. K. Wagnon 1989-1 1891 Sonoma Jack London State Park Comment
  SEINET7042676  Trifolium ciliolatum A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  UCD108373  Trifolium depauperatum var. depauperatum Frederica Bowcutt 1996-3-24 2075 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. 1 air mile south of Red Mountian. Trail head for Lower Bald Mountain Trail at group campsite just west of Sonoma Creek. 381 Comment
  UCSC005278  Trifolium depauperatum var. hydrophilum Randall Morgan 1995-5-18 2617 Sonoma Santa Rosa, Stony Point Road, across from Yuba Drive Comment
  UC16722  Trifolium depauperatum var. truncatum Edw. L. Greene 1892-4-23 Sonoma Knight's Valley Comment
  UCD84294  Trifolium depauperatum var. truncatum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UCD166122  Trifolium dubium Peter Rubtzoff 1972-6-23 6786 Sonoma Atascadero Creek Marsh. Comment
  RSA0079933  Trifolium fragiferum Greg de Nevers 1997-7-24 11071 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Double Ponds and Turtle Pond. 100 Comment
  UCD108895  Trifolium fragiferum Frederica Bowcutt 1997-7-18 2186 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
  SEINET12165545  Trifolium incarnatum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -198 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd., between Jimtown & Mercuryville 690 Comment
  UCD165163  Trifolium microcephalum Peter Rubtzoff; Nancy Harrison 1974-5-26 7467 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  SEINET9336961  Trifolium microdon Unknown 1967-5-15 7926 Sonoma Foothill slopes, serpentine soils. Comment
  UC80353  Trifolium microdon Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  RSA0079934  Trifolium repens Greg de Nevers 1998-6-20 11289 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Rogers Apple Orchard. 100 Comment
  UCD109429  Trifolium variegatum R. Tofsrud 1951-5-20 s.n. Sonoma Huichica School near Sonoma. Comment
  UCD150135  Trifolium variegatum Ayzik Solomeshch 2009-5-13 s.n. Sonoma West edge of city of Santa Rosa, S of Hwy 12 and just E of S Wright Rd. San Jones wetland, sampling pool #1. 31 Comment
  JEPS128229  Trifolium willdenovii Roger Raiche 2000-5-4 072 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD109507  Trifolium willdenovii J. Adams; J. Weick 1993-5-8 272 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. Comment
  RSA582648  Trifolium wormskioldii Jens Clausen 1935-5-24 1091 Sonoma 6.2 miles south of Jenner. Comment
  SEINET10577447  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1902-6-10 Heller s.n. Sonoma Santa Rosa Comment
  UCD139917  Trillium ovatum L. Whitney 1932-4-1 s.n. Sonoma Vine Hill, Santa Rosa. Comment
  HSC22048  Trillium ovatum F. Demostene 1966-4-11 39 Sonoma 25 mi. W of Healdsburg Comment
  SEINET7067236  Triphysaria eriantha A. G. Vestal 1947-5-13 s.n. Sonoma Base of dunes, Bodega Head. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  CHSC32884  Triphysaria versicolor subsp. faucibarbata N. Kvasnik 1980-4-2 2 Sonoma Ca. 15 mi se of Petaluma. Ca. 1.3 mi w of jct of Warm Springs Rd and Sonoma Mountain Rd on s side of road. 225 Comment
  UC1334870  Triphysaria versicolor subsp. faucibarbata L. D. Thurman 1964-5-4 468 Sonoma 0.1 mi w of junction of Petaluma-Valley Ford road with Tomales-Petaluma road Comment
  CAS-BOT-BC200101  Trisetum canescens G. DeNevers 1981-5-20 1231 Sonoma Leslie Creek and Mark West Creek Comment
  CAS-BOT-BC200108  Trisetum canescens K. Wagnon 1939-5-14 202 Sonoma In Wagnon's rock quarry 5 mi. west of Sebastopol Comment
  CAS-BOT-BC200109  Trisetum canescens John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54007 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-BC200110  Trisetum canescens Roxana S. Ferris; Laura Lorraine 1961-6-14 13533 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway Comment
  JEPS45810  Trisetum canescens Eleanor Armstrong 1932-5-25 172 Sonoma near Camp Meeker 137 Comment
  UCD93498  Trisetum canescens Beecher Crampton 1955-6-17 2950 Sonoma 4.5 miles S of Cazadero. Comment
  UCD93507  Trisetum canescens Beecher Crampton 1957-7-11 4310 Sonoma Along State Hwy. 1, 1.25 miles SE of Bodega Bay. Comment
  UCD15865  Trisetum canescens Botany 102 Students 1993-3 9 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. Across road from Goodspeed trailhed pullout. 228 Comment
  CAS-BOT-BC522355  Triteleia hyacinthina Peter Rubtzoff 1961-6-17 4621 Sonoma Bennett Mountain Lake 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-BC523026  Triteleia hyacinthina David D. Keck 1933-5-28 2322 Sonoma 3.4 miles east of Shellville (just east intersection of Sonoma road). Comment
  SEINET7067336  Triteleia laxa A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles East of Windsor on Mendocino Avenue. Coordinate datum: NAD27. UTM Zone 10, 523728mE, 4258330mN. Comment
  RSA173356  Triteleia laxa Walter Knight 1965-6-5 1116 Sonoma McDowell Road 1/2 mile from Casa Grande Road. Petaluma Comment
  UCD139377  Triteleia laxa Frederica Bowcutt 1994-6-12 1863 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
  CAS-BOT-BC80204  Tsuga heterophylla John Madison; Mary P. Wells; Mary Rhyne 1985-11-4 691 Sonoma Forest about 1/3 mile south of the Gualala River Comment
  RSA216176  Typha domingensis Peter Rubtzoff 1955-8-21 2090 Sonoma Vacation Beach, near Guerneville. Near the margin of the Russian River. Comment
  RSA540051  Typha domingensis Peter Rubtzoff 1966-7-4 5775 Sonoma Saguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC208026  Ulex europaeus John H. Thomas 1966-3-22 11543 Sonoma on hillsides in the vicinity of Bodega Comment
  RSA699636  Ulex europaeus Keith E. Hoffmaster 1946-3-9 s.n. Sonoma Roadside, spreading thruoghout a hillside pasture. Near Petaluma. Comment
  CAS-BOT-BC91281  Umbellularia californica Walter Knight; Irja Knight 1963-9-15 272 Sonoma Los Alamos Road. Santa Rosa. Comment
  CAS-BOT-BC91284  Umbellularia californica Wosnessensky 1840-11-30 s.n. Sonoma Saint Pavio. Fort Ross. Comment
  CAS-BOT-BC91287  Umbellularia californica Aven Nelson; Ruth A. Nelson 1933-5-14 551 Sonoma Kenwood. (Baker's). Comment
  CAS-BOT-BC91288  Umbellularia californica A. A. Heller; H. E. Brown 1902-3-10 s.n. Sonoma Hills east of Santa Rosa. Comment
  CAS-BOT-BC91289  Umbellularia californica R. F. Hoover 1968-2-23 10894 Sonoma Graton-Occidental road. Comment
  HSC14488  Umbellularia californica D. Sutherland, A. Sylvester, R. Spellenberg 1966-3-26 1336 Sonoma Near Big Geysers Comment
  RSA785729  Umbellularia californica Carrie A. Herd 1982-3-9 13 Sonoma Crane Creek Regional Park Comment
  CAS-BOT-BC404236  Urtica dioica subsp. holosericea Peter Rubtzoff 1962-9-16 5088 Sonoma Vacation Beach, 1.5 miles below Guerneville Comment
  CAS-BOT-BC404243  Urtica dioica subsp. holosericea Peter Rubtzoff 1962-9-30 5098 Sonoma Vacation Beach, 2 mi. below Guerneville Comment
  RSA40679  Vaccinium parvifolium I. L. Wiggins 1948-3-21 11617 Sonoma Western margin of Kruse Rhododendron State Park. Comment
  CAS-BOT-BC76164  Vancouveria planipetala J. W. Congdon 1892-5-30 s.n. Sonoma Cazadero. Comment
  CAS-BOT-BC76167  Vancouveria planipetala Rimo Bacigalupi 1926-4-30 1376 Sonoma Cazadero. Comment
  CAS-BOT-BC76168  Vancouveria planipetala Peter Rubtzoff 1953-5-18 1409 Sonoma South of Guerneville. (Neeley Hill Area). Comment
  CAS-BOT-BC76169  Vancouveria planipetala M. S. Baker 1899-5-6 s.n. Sonoma Green Valley, near Gallagher's. Comment
  CAS-BOT-BC135770  Veratrum fimbriatum Saichi Kawahara 1968-8-28 497 Sonoma Salt Point Ranch 9 Comment
  CAS-BOT-BC320526  Verbascum Peter Rubtzoff 1973-8-29 7289 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC311842  Verbascum Peter Rubtzoff; Nancy Harrison 1974-7-13 7678 Sonoma Upper Green Valley Marsh. Comment
  CDA15999  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15679 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  CDA37932  Verbascum virgatum D. G. Kelch, Troy McGregor 2010-8-22 10 .34 Sonoma Geyser Peak Rd. Comment
  UCD167954  Verbena lasiostachys James Neilson 1981-7-16 4057 Sonoma Mayacmas Mountains. Big Sulphur Cr. 100 yards below bridge of Cloverdale-Geysers Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA785448  Veronica Peter Rubtzoff 1955-5-7 1825 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC176391  Veronica americana Peter Rubtzoff 1954-6-6 1461 Sonoma Guerneville Marsh. Comment
  RSA783724  Veronica americana Peter Rubtzoff 1954-6-6 1460 Sonoma Guerneville Marsh. Comment
  RSA786488  Veronica americana Peter Rubtzoff 1962-5-11 4813 Sonoma Freestone Marsh Comment
  CAS-BOT-BC177117  Veronica americana Peter Rubtzoff 1955-6-4 1896 Sonoma Stony Point Marsh. Comment
  RSA264766  Veronica anagallis-aquatica Peter Rubtzoff 1956-9-16 2920 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  UC1299208  Veronica peregrina subsp. xalapensis Freed W. Hoffman 1947-5-15 775 Sonoma near Guerneville (Lone Mountain Farm); North Coast Ranges, Lone Mountain Farm Comment
  UCD164195  Veronica scutellata Peter Rubtzoff; Nancy Harrison 1978-6-11 9211 Sonoma Cunningham Marsh Area, on north side of Blucher Creek Valley. Comment
  JEPS12695  Viburnum ellipticum Miss R. Kuhn May 1914 Sonoma Sonoma Comment
  CAS-BOT-BC257966  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC540814  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh area. Comment
  RSA29231  Vicia angustifolia Joseph A. Ewan 1935-5-13 9277 Sonoma 3 miles W of Santa Rosa on Sebastopol Road. Comment
  UCD38373  Vicia benghalensis Beecher Crampton 1955-4-4 2393 Sonoma Asti. Comment
  CHSC33020  Vicia sativa Jane A. Rogers 1979-4-14 5 Sonoma Ca. 50 yds e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  SBBG3895  Vicia sativa H. and M. Dearing 1939-5-15 3382 Sonoma N of Fort Ross Comment
  UCSB22472  Vicia sativa subsp. nigra McCarthy, Sharon 1965-4-17 Sonoma In field west of 5th Street West, opposite Betancourt Street intersection, Sonoma 25 Comment
Read comments
Jul 28 2008
  UCR254854  Vicia tetrasperma Greg de Nevers 1993-7-4 10471 Sonoma Willow Creek drainage downhill from 18375 Willow Creek Road [Occidental] 244 Comment
  UCD15000  Vinca major Wesley Ebert 1977-4-9 13 Sonoma Sonoma County; along Copeland Creek, on the northwest corner of Sonoma State College; 42 Comment
  UC1742244  Viola Milo S. Baker 1948-5-17 12040 Sonoma Brookside Garden Comment
  UC581533  Viola adunca H. L. Mason June 1930 5663 Sonoma mouth of Gualala River Comment
  UC1761563  Viola adunca Edith Hessel 1927-4-26 Sonoma Hessel Station, 100 ft up car track from store, to W Comment
  UCD110667  Viola adunca subsp. adunca Jo Nixon 1951-3-24 5 Sonoma Along Highway 1, 5 miles N of Bodega Bay. Comment
  UC1763347  Viola douglasii Milo S. Baker 1905-4-15 5515 Sonoma Santa Rosa Golf Links, Peach Flat Comment
  UC1761451  Viola lobata Milo S. Baker 1926-5-31 164 -1926 Sonoma Triniti road, 1 mi up Comment
  RSA80503  Viola lobata Milo S. Baker 1942-4-29 10189 Sonoma Spring Mt Road near summit. Near Napa -Sonoma county line. 457 Comment
Read comments
Jun 10 2012
  UC1762486  Viola lobata subsp. integrifolia Milo S. Baker 1942-6-11 10205 Sonoma Spring Mt. Rd. near Summit. 457 Comment
  UC496479  Viola ocellata Merle Randall 1930-6-8 Sonoma Cazadero Comment
  HSC21828  Viola ocellata Malcolm L. Byce 1936-3-22 168 Sonoma Camp Miller, 3.5 mi. W of Cazadero, towards Ft. Ross, on Ward Creek Comment
  RSA304244  Viola ocellata James R. Shevock 1971-4-8 918 Sonoma Entrance Sugarloaf State Park. 152 Comment
  UC1761625  Viola pedunculata Mary Eloise Bauder 1929-4-2 5 Sonoma Roberts place--Pet. Hill Road Comment
  SDSU11390  Viola sempervirens D. F. Howe 1963-7-3 3590 Sonoma 20 miles north of junction with #12 on #1, under redwoods. Comment
  POM161243  Viola sempervirens R. C. Bacigalupi 1928-5-2 1395 Sonoma Cazadero. Comment
  RSA412784  Viola sempervirens Christopher Davidson 1977-6-20 6038 Sonoma Ridge Crest Rd., on Sea Ranch property south of Gualala River. 30 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
  UC1393644  Viscum album W. J. Ferlatte and William O. McCartney 1970-12-22 1326 Sonoma Sebastopol; 525 Main Street Comment
  UCR248749  Vitis californica Peter Rubtzoff 1970-8-31 6350 Sonoma Forest Hills, 5.5 miles east of Guerneville, along the Russian River 13 Comment
  CAS-BOT-BC203124  Vitis californica Walter Knight; Irja Knight 1963-9-1 134 Sonoma Along 1st stream up from County Dump on Pine Mt Rd NE of Cloverdale Comment
  SEINET10691484  Vitis californica Henry N. Bolander 1866-1 Bolander s.n. Sonoma River at Cloverdale, Calif. Comment
  UCD17549  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma 2 miles N on Upper Lake Highway, E of Ukiah. Near first highway bridge. Comment
  UCD60314  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma On highway near Hilton, 2 miles E of Korbel on Russian River. Comment
  CAS-BOT-BC199825  Vulpia John H. Thomas 1976-6-16 18347 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  RSA123467  Vulpia bromoides H. S. Yates 1937-6-6 6585 Sonoma 3 miles east of Jenner. 61 Comment
  UCD151221  Vulpia bromoides James A. Neilson Jr. 1974-5-17 2979 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, west of Whispering Pines. (Elevation estimated using Google Earth by label maker.) 1082 Comment