Search Results — 2000 specimen records retrieved (1273 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS47988  Abies grandis Alice Louise Griffin 1924-8-7 7 Sonoma Stewart's Stewart's Point Comment
Read comments
Jan 13 2007
  SD125397  Abronia latifolia Robert Robichaux 1975-5-18 129 Sonoma Bodega Bay, northwest end of Bodega Head Comment
  UCD109792  Abronia latifolia Steven Yoder 1969-5-24 28 Sonoma 1 mile north of Marine Lab at Bodega Bay. 7 Comment
  CAS-BOT-BC203226  Abutilon Peter Rubtzoff 1971-6-5 6509 Sonoma Bennett Valley Road, 4.25 mi. west of Glen Ellen Comment
  CAS-BOT-BC451112  Acaena pinnatifida var. californica Alice Eastwood 1915-6-29 4114 Sonoma Bodega Point Comment
  CAS-BOT-BC451110  Acaena pinnatifida var. californica W. P. Vestal; A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross Comment
  UCD67995  Acer macrophyllum S. M. Smukler 1995-6-3 19 Sonoma Across from Mark West Query, 4611 Porter Creek Road, at top of bank on North side of Porter Creek. In a riparian plant association. A tree, 20 m high. 100 Comment
  UCR2992  Acer macrophyllum Wm. Horn Jr. 1963-4-10 630410- 3 Sonoma San Francisco Bay Region, 4 mi west of Sebastopol, 40 yd north of Bodega Hwy Comment
  UCD117125  Acer negundo W. W. Robbins 1932-6-17 s.n. Sonoma Sonoma County. Comment
  CAS-BOT-BC336944  Acer negundo var. californicum Peter Rubtzoff 1951-9-2 715 Sonoma Pitkin Marsh near Forestville, south of Upper Marsh Comment
  UC1171645  Acer negundo var. californicum H. S. Yates 1934-4-21 3809 Sonoma near Markham; Duncan's Mills Quad., near Markham 15 Comment
  CAS-BOT-BC82  Achillea borealis subsp. arenicola Amos Arthur Heller 1902-5-27 5608 Sonoma Bodega Bay Comment
  CAS-BOT-BC30083  Achillea millefolium J. H. Thomas 1976-6-15 18268 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC30084  Achillea millefolium G. DeNevers 1981-5-15 1168 Sonoma N arm of Garrison Canyon Comment
  CAS-BOT-BC30090  Achillea millefolium Mary P. Wells 1982-8-23 s.n. Sonoma Salt Point State Park Comment
  JEPS47752  Achlys triphylla subsp. triphylla Alice Louise Griffin 1924-8-7 Sonoma Stewart's Point Comment
  UC88432  Achyrachaena mollis W. E. Bryant Sonoma Healdsburg Comment
  HSC100949  Acmispon grandiflorus Peter Warner, Jason Martinez 2011-4-27 188 Sonoma Jenner Headlands, Kidd Creek watershed, near ridge-top along road. 285 Comment
  HSC101108  Acmispon grandiflorus var. grandiflorus Peter Warner 2011-6-16 214 Sonoma Jenner Headlands property, northeastern area, on ridge between Jenner Gulch and Kidd Creek watersheds, ~ 200 m fr. boundary with E&P Ranch 470 Comment
  UCD104294  Acmispon parviflorus P. G. Connors 1992-5-13 255 Sonoma At edge of vernal pool near entrance road to Bodega Dunes State Park. Comment
  CAS-BOT-BC391713  Actaea rubra Mrs. E. C. Sutliffe 1928-7-18 s.n. Sonoma Annapolis Comment
  POM40150  Adenocaulon bicolor Marcus E. Jones 1903-4-18 s.n. Sonoma Duncans Mills Comment
  CAS-BOT-BC361370  Adenostoma fasciculatum Greg de Nevers 1997-3-20 10921 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill 400 Comment
  CDA346  Adenostoma fasciculatum D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .273 Sonoma Cavedale Rd. Comment
  HSC98397  Adenostoma fasciculatum R. Spellenberg 1964-6-15 404 Sonoma 5 mi. W of The Geysers on road from Geyserville Comment
  UCD112602  Adenostoma fasciculatum Jennifer Bury; Peggy Herzog 1993-5-8 270 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 Mountain 1 mile. Near visitor center, 100 feet above parking lot, along Lower Bald Mountaing Trail. 402 Comment
  SEINET11908934  Adenostoma fasciculatum W. Knight, Knight, I. 1981-1 3964 Sonoma 2.3 mi up Cavedale Road from jct of State Rt 12 Comment
  RSA12257  Adiantum aleuticum C. B. Wolf 1934-6-29 5802 Sonoma 6/10 of a mile inland from Stewart's Point. 61 Comment
  CDA1677  Aegilops triuncialis T. C. Fuller 1960-6-14 4485 Sonoma J. Black Ranch, River Road, ca. 6 miles E/ Cloverdale. 0 Comment
  UC1112779  Aegilops triuncialis Paul Furbush 1958-5-29 Sonoma Cloverdale, River Road Cloverdale; , River Road 45 Comment
  UCD51564  Aegilops triuncialis T. C. Fuller 1960-6-14 4485 Sonoma J. Black Ranch, River Road, 6 miles E/Cloverdale. Comment
  UCD136639  Aesculus californica Frederica Bowcutt 1997-7-18 2175 Sonoma Sugarloaf Ridge State Park, about 50 air miles north 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 Creek. 365 Comment
  POM64094  Agastache urticifolia A. A. Heller 1902-5-28 5792 Sonoma Between Knight s Valley and Mark West Springs. Comment
  UCD165164  Agoseris Peter Rubtzoff 1974-5-26 7470 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UCD166070  Agoseris Peter Rubtzoff 1971-5-30 6479 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC26633  Agoseris apargioides var. eastwoodiae Alice Eastwood s.d. s.n. Sonoma Bodega Point Comment
  UCD160133  Agoseris grandiflora James A. Neilson Jr. 1973-6-7 2945 a Sonoma Mayacmas Mountains. The Geysers. Big Geysers. Site IV-G. (Elevation and exact location estimated by label maker.) 365 Comment
  CAS-BOT-BC15351  Agoseris grandiflora var. grandiflora John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53957 Sonoma Fairfield Osborn preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on west slope of Sonoma Mountain 457 Comment
  SEINET7096764  Agoseris heterophylla A. G. Vestal 1955-5-8 s.n. Sonoma South end of Bennett Mountain southeast of Santa Rosa. East Bennett Valley NAD27, 38? deg. 24' 31ao, -122?_ 37' 52ao (converted to WGS84 decimal degrees) UTM Zone 10, 532220mE, 4251005mN. Comment
  CAS-BOT-BC22785  Agoseris heterophylla G. DeNevers 1981-4-30 902 Sonoma Pepperwood ranch, at the studio Comment
  CAS-BOT-BC210001  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca. 1 air mi. WSW of Cunningham Station Comment
  RSA785753  Agrostis Peter Rubtzoff 1974-5-25 7461 Sonoma Upper Green Valley Marsh. Comment
  RSA785907  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca 1 air mile WSW of Cunningham Station Comment
  UCD151135  Agrostis James A. Neilson Jr. 1973-6-6 2986 Sonoma Mayacmas Mountains. The Geysers. Site A. (Elevation estimated using Google Earth by label maker.) 441 Comment
  UCR244617  Agrostis Peter Rubtzoff 1967-8-22 5857 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  UCD37163  Agrostis blasdalei Beecher Crampton 1957-7-22 4394 Sonoma Sonoma County, 0.25 mile north of Fort Ross, along State Highway 1. Comment
  UCD51836  Agrostis blasdalei Beecher Crampton 1957-7-11 4340 Sonoma just south of Portugese Beach, Sonoma Coast State Park, 2.5 miles north Salmon Creek. Comment
  UCD37157  Agrostis densiflora Beecher Crampton 1957-7-11 4351 Sonoma Sonoma County, 9 miles north of Salmon Creek, Sonoma Coast State Park, just south of Goat Rock, along pathway to Blind Beach. Comment
  UCD51887  Agrostis densiflora Beecher Crampton 1957-7-11 4331 Sonoma Sonoma Coast State Park, 0.9 miles north of Salmon Creek. Comment
  CAS-BOT-BC126978  Agrostis exarata R. F. Hoover 1966-7-17 9415 Sonoma Sausal Creek north of Alexander Valley. Comment
  UC573821  Agrostis exarata H. S. Yates 1937-5-31 6565 Sonoma in meadow 1 1/2 mi ne Petrified Forest; Calistoga Quadrangle Comment
  UCD52075  Agrostis exarata R. Tofsrud 1941-7-1 s.n. Sonoma near Kenwood. Comment
  CAS-BOT-BC126964  Agrostis exarata Leo Koch 1938-6-12 313 Sonoma Along Redwood Highway about 3 miles north of Santa Rosa. Comment
  CAS-BOT-BC139556  Agrostis gigantea Peter Rubtzoff 1951-7-21 514 Sonoma Pitkin Marsh, near Forestville. Between the Upper and the Lower Marshes. Comment
  UC1146695  Agrostis hallii Freed W. Hoffman 1941-6-20 2093 Sonoma near Camp Meeker (Oregon Canyon); North Coast Ranges, Oregon Canyon Comment
  UCD52723  Agrostis hallii Beecher Crampton 1957-7-11 4347 Sonoma slopes above Shell Beach, Sonoma Coast State Park, 7.4 miles north Salmon Creek. Comment
  CAS-BOT-BC138856  Agrostis microphylla Beecher Crampton 1966-5-10 7727 Sonoma 6.5 miles north of Sonoma, State Highway 12. Comment
  UC1112778  Agrostis microphylla Leo Whitney 1935-4-14 2258 b Sonoma near Occidental (Blunden's Pasture); Blunden's Pasture Comment
  UC1146691  Agrostis microphylla Freed W. Hoffman 1947-4-10 1944 Sonoma The Geysers North Coast Ranges, The Geysers Comment
  SBBG26362  Agrostis microphylla B. Crampton 1966-5-10 Sonoma 5.5 mi N of Sonoma. St Hwy 12 Comment
  SEINET197664  Agrostis microphylla Leo Koch 1940-4-22 837 Sonoma Sulfur Creek Geysers: grassy hills above Comment
  CAS-BOT-BC139116  Agrostis oregonensis Peter Rubtzoff 1951-6-16 261 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC138915  Agrostis pallens R. F. Hoover 1965-6-29 9477 Sonoma North of summit on Harrison Grade road near Occidental. Comment
  CAS-BOT-BC138917  Agrostis pallens G. DeNevers 1981-6-15 1519 Sonoma Pepperwood Ranch. Lower Pepperwood entrance. Comment
  UCD53178  Agrostis pallens P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  UCD53194  Agrostis pallens P. B. Kennedy 1917-8-1 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC138594  Agrostis stolonifera 1947-6-26 11842 Sonoma Cunningham Marsh ca. 1 mile (airline) southwest of Cunningham Station. Comment
  SD34475  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma County coast, 5 miles south of Steward Point, coastal bluffs. Comment
  UCD53528  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma County coast: 5 miles south of Steward Point. Comment
  UCR133544  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Coast, 5 miles south of Stewart's ('Steward') Point 24 Comment
  JEPS45806  Aira caryophyllea Eleanor Armstrong 1932-6-4 188 Sonoma 1/2 mi w Camp Meeker (near St. Dorothy's Rest) 137 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
  UCD55770  Aira caryophyllea P. B. Kennedy 1929-5-24 s.n. Sonoma Clover Hill, between Plantation and Black Point. Comment
  CAS-BOT-BC138213  Aira caryophyllea var. caryophyllea Peter Rubtzoff 1951-6-16 230 Sonoma Pitkin Marsh near Forestville. Lower part of the Upper Marsh. Comment
  UCD137909  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
  UCR279634  Alisma lanceolatum Peter Rubtzoff 1968-8-31 5953 Sonoma Russian River bottom at Forest Hills, 5.5 mi east of Guerneville 13 Comment
  RSA790061  Alisma lanceolatum Peter Rubtzoff 1970-8-18 6303 Sonoma Five miles north of Sears Point. Comment
  CAS-BOT-BC164376  Alisma triviale Peter Rubtzoff 1965-6-20 5560 Sonoma Petaluma Creek, 4 miles northwest of Petaluma (on Stoney Point Road) Comment
  CAS-BOT-BC445465  Alisma triviale Peter Rubtzoff 1958-8-16 3874 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road). Comment
  CAS-BOT-BC445467  Alisma triviale Peter Rubtzoff 1962-7-28 5011 Sonoma Ross Marsh area. Green Valley Creek bank near Ross Station Rd. crossing. Comment
  RSA69760  Alisma triviale F. W. Peirson 1925-8-8 6344 Sonoma 5 miles S of Santa Rosa. Comment
  CAS-BOT-BC462384  Allium amplectens L. S. Rose 1931-4-28 s.n. Sonoma Between Black Point and Shellville Comment
  JEPS82409  Allium bolanderi Roger Raiche 1983-6-4 30374 Sonoma Sweetwater Springs Road 3.9 mi w West Side Highway (above Porter Creek, e of its intersection with John Gordon Creek, on s side of road); Porter Creek 121 Comment
  SEINET3884472  Allium dichlamydeum D. W. McNeal 1968-6-15 411 Sonoma 13.3 mi. n. of Fort Ross.; 0 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-BC451308  Allotropa virgata Greg de Nevers 1991-6-22 9752 Sonoma Pepperwood Natural Preserve., 33450 Franz Valley Road 475 Comment
  UC1585375  Alnus rhombifolia R. Raiche, K. Zadnik, and H. Forbes 1989-1-10 Sonoma 6.9 km w of Soda Springs (e of Stewarts Point, along the Gualala River, on Skaggs Springs-Stewarts Point Road); Gualala River, Skaggs Springs-Stewarts Point Road Comment
  CAS-BOT-BC169368  Alnus rubra John Thomas Howell 1934-3-3 11741 Sonoma near Fort Ross Comment
  CAS-BOT-BC138049  Alopecurus aequalis var. sonomensis J. W. Congdon 1880-6-6 s.n. Sonoma Bloomfield. Comment
  CAS-BOT-BC138003  Alopecurus geniculatus Peter Rubtzoff 1959-6-6 4090 Sonoma Willow Creek Marsh. Comment
  UCD55812  Alopecurus pratensis Mary M. Hektner 1975-4-30 191 Sonoma near State Highway 1, Sea Ranch, just below Sea Ranch Association Office parking lot, Unit 36 Owners' Map . Comment
  JEPS68433  Alopecurus saccatus R. Kuhn 1913-4-15 Sonoma Sonoma Comment
  UCD33095  Alopecurus saccatus Beecher Crampton 1966-5-10 7726 Sonoma Sonoma County, 6.5 miles north of Sonoma on State Hwy. 12, Glen Ellen station (CA dept. of forestry). Comment
  RSA234563  Amaranthus californicus Peter Rubtzoff 1963-8-24 5240 Sonoma Laguna de Santa Rosa east of Graton Comment
  CAS-BOT-BC135668  Amelanchier utahensis A. A. Heller 1902-7-1 5794 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC135669  Amelanchier utahensis D. E. Breedlove 1980-6-27 44779 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD56002  Ammophila arenaria Beecher Crampton 1957-7-11 4317 Sonoma west of Bodega Harbor, 1-2 miles, by road, west of the town of Bodega Bay. Comment
  SEINET3917971  Ammophila arenaria K. Thorne 1984-11-21 3659 Sonoma Sea Ranch, 2.5 mi S of Gualala, stabilized coast dunes old sheep ranch.; 0 Comment
  CAS-BOT-BC361327  Amorpha californica Greg de Nevers 1997-8-17 11081 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  JEPS87225  Amorpha californica var. napensis Jack and Betty Guggolz 1992-5-9 1282 Sonoma 1/2 mi nw Buzzard Peak (ne of Santa Rosa) 271 Comment
  CAS-BOT-BC222278  Amsinckia John Thomas Howell 1934-3-25 11777 Sonoma Lakeville Comment
  UCD35298  Amsinckia intermedia Beecher Crampton 1955-4-5 2423 Sonoma Along State Highways 37, 12, about 3 miles east of Schellville. Comment
  UC725447  Amsinckia lunaris A. A. Heller 1940-4-22 15550 Sonoma e of Santa Rosa (along State Hwy 12) Comment
Read comments
Nov 9 2006
  UCD119719  Amsinckia lycopsoides K. Esau 1932-2-28 s.n. Sonoma Petaluma. Comment
  UC1073292  Amsinckia spectabilis George B. Rossbach 1955-3-19 454 Sonoma northern and highest hill on Bodega Head 76 Comment
  UCD160840  Anagallis arvensis James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3471 Sonoma Section 10, ca. 1.5 miles west of the Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  UCD56042  Andropogon glomeratus Freed W. Hoffman 1943-6-17 s.n. Sonoma Guerneville. Comment
  UCD56045  Andropogon glomeratus H. S. Yates 1937-8-22 6865 Sonoma 2 miles SE of Forestville. 30 Comment
  UC1042505  Andropogon glomeratus var. pumilus Peter Rubtzoff 1951-11-24 849 Sonoma western branch of the Upper Marsh Pitkin Marsh (near Forestville); , western branch of the Upper Marsh Comment
  UCD56062  Andropogon glomeratus var. pumilus Virginia Bufford 1936-8-18 413 Sonoma Pitkins Marsh, Vine Hill District. Comment
  CAS-BOT-BC137791  Andropogon virginicus var. virginicus Walter Knight; Irja Knight; Stephen W. Edwards 1986-8-17 5505 Sonoma Sweetwater Springs Road. Comment
  UC1011023  Andropogon virginicus var. virginicus Virginia Bufford 1936-8-19 412 Sonoma Pitkin's Marsh; Pitkin's Marsh - Vine Hill District Comment
  POM188473  Angelica californica Marcus E. Jones 1931-7-5 29050 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC271431  Anisocarpus madioides Dorothy Scherer 1997-5-6 106 Sonoma Along forest trail northerly from Fort Ross Rd. and .6 mi. west of Seaview Road, Fort Ross State Historic Park 365 Comment
  CAS-BOT-BC271441  Anisocarpus madioides Mary P. Wells 1981-4-18 s.n. Sonoma Near So. Fork Gualala R., the Sea Ranch Comment
  CAS-BOT-BC102234  Anthemis cotula Greg de Nevers 1987-5-11 8175 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  POM187931  Anthemis cotula Marcus E. Jones 1931-7-5 29120 Sonoma The Geysers. Comment
  CAS-BOT-BC173528  Anthemis cotula Peter Rubtzoff 1970-8-19 6327 Sonoma Austin Creek beach, 3.5 miles south of Cazadero. Comment
  UCD129069  Anthemis cotula Charles B. Heiser Jr. 1946-8-17 1827 Sonoma Banks of Russian River, near Duncan Mills. Comment
  RSA259578  Anthemis fuscata Thomas W. Nelson, James Nelson 1975-3-25 1751 Sonoma Asti, Growing as a weed in cultivated areas, vinyards Comment
  CAS-BOT-BC137768  Anthoxanthum aristatum G. DeNevers 1981-5-30 1419 Sonoma Pepperwood Ranch. Low place east of the Pippindale Pond. Comment
  UCD37565  Anthoxanthum aristatum Beecher Crampton 1955-4-5 2412 Sonoma 3 miles northeast of Trenton, 3 miles southwest of Windsor, Starr Road, near Starr School, along Windsor Creek. Comment
  CAS-BOT-BC280663  Anthoxanthum occidentale J. W. Congdon 1880-5-17 s.n. Sonoma Guerneville Comment
  SEINET11688816  Anthoxanthum occidentale F. H. Utech 1988-1 88 -186 Sonoma ca 0.15 mi SE from East Avenue junction with Bohemian Road on latter enroute to Occidental 140 Comment
  UC1011019  Anthoxanthum odoratum Virginia Bufford 1936-5-1 178 Sonoma 2 mi above Duncan's Mill Comment
  UC730018  Anthoxanthum odoratum Leo F. Koch 1940-4-21 Sonoma 2.5 mi n of Anchor Bay (Highway 1); Highway 1 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
  HSC21459  Anthriscus caucalis James Faro 1962-4-17 32 Sonoma W end of Bodega Bay, N end Comment
  RSA47825  Anthriscus caucalis L. Beane, L. James 1949-5-11 1985 Sonoma 3 miles east of Hopland Comment
  JEPS103955  Antirrhinum vexillocalyculatum subsp. breweri Jack and Betty Guggolz 1991-6-20 1193 Sonoma ridge running W from an old homesite, about 1 1/4 mi N of Camp Meeker 161 Comment
  UC444960  Antirrhinum vexillocalyculatum subsp. breweri Milo S. Baker 1907-6-28 Sonoma near Duncan's Mills (Russian River); Russian River Comment
  UC479127  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Marcus E. Jones, A. M. 1931-7-5 28820 Sonoma Cloverdale Comment
  UCSB31778  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Townsend, J. 1977-5-30 Sonoma East side Old Cazadero Rd; 7 miles north-west of Guerneville 472 Comment
  UCD151257  Antirrhinum virga James A. Neilson Jr. 1974-7-10 2833 Sonoma Mayacmas Mountains. South of Little Geysers. 731 Comment
  CAS-BOT-BC361282  Apiastrum angustifolium Greg de Nevers 1997-4-16 10934 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  UC22905  Apocynum androsaemifolium F. T. Bioletti 1892-7-5 Sonoma s. Los Guilucos Comment
  UC1125882  Aquilegia formosa E. Armstrong 1934-3-26 947 Sonoma Camp Meeker Sebastopol Quad. 60 Comment
  UCD95528  Aquilegia formosa Frederica Bowcutt 1997-7-19 2194 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood. 0.75 air mile S of Red Mountain, 0.5 air miles NNW of confluence of the Malm Fork, 1.0 air miles WSW of Brushy Peaks. 457 Comment
  RSA0125766  Arabis glabra A. A. Heller, H. E. Brown 1902-5-29 5929 Sonoma Mt. Hood Comment
  CDA17199  Aralia californica G. F. Hrusa, R. Gross, D. Gross 2003-11-11 16198 Sonoma North Coast Biodiversity Arena; Creekbed of Kellogg Cr., NW base of Mt. St. Helena. Sheet 1 of 2 536 Comment
  CAS-BOT-BC171610  Aralia californica Dorothy Scherer 1997-5-6 098 Sonoma Fort Ross Cr, halfway between Hwy. One and ocean, Fort Ross State Historic Park 7 Comment
  UCD128212  Aralia californica Frederica Bowcutt 1994-6-24 1900 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 Vista Trail about between Headwaters Trail and Gray Pine Trail. 457 Comment
  POM196028  Arbutus menziesii Emma Hawkins 1929-3-10 s.n. Sonoma Coast Ranges Comment
  SEINET11996993  Arbutus menziesii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -244 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CHSC69207  Arctostaphylos James D. Jokerst 1989-4-14 3099 Sonoma Healdsburg Area A Specific Plan Study, in project area. On ridge adjacent to existing subdivision, SW portion of project area. Comment
  JEPS98885  Arctostaphylos James Roof 1967-3-19 Sonoma W of Healdsburg (Dorman Canyon Road); Dry Creek watershed Comment
  RSA629224  Arctostaphylos Jon E. Keeley 1993-9-11 24774 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC909870  Arctostaphylos J. E. Adams 1934-3-28 720 Sonoma near Santa Rosa; Vine Hill School Comment
  UC1120874  Arctostaphylos bakeri C. M. Belshaw 1936-3-7 1553 Sonoma 1 mi ne Occidental; Sebastopol Quadrangle Comment
  UC1120877  Arctostaphylos bakeri A. E. Wieslander 1936-9-19 707 Sonoma 1 mi nw Occidental; Sebastopol Quadrangle Comment
  UC518012  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10956 Sonoma 2 mi e Occidental Comment
  UC727008  Arctostaphylos bakeri A. A. Heller 1942-3-15 16396 Sonoma 2 mi e Occidental (near summit of grade, from type station); Harrison Grade Comment
  UC876383  Arctostaphylos bakeri Lewis S. Rose 1934-2-22 34032 Sonoma 2 mi e Occidental (type locality) Comment
  CDA38594  Arctostaphylos bakeri Jim Jokerst 1989-4-13 3094 Sonoma S side of Graton Rd. 1.2 mi E of junction with Fuscondini Rd., 2 mi E of Occidental, W of Santa Rosa. Comment
  SEINET12524557 Image available Arctostaphylos bakeri C. M. Belshaw 1936-1 1557 Sonoma 2 miles north-northeast of Occidental, Sebastopol quadrangle Sec._ T. 7N.,R. low. 189 Comment
  RSA202121  Arctostaphylos bakeri subsp. bakeri Freed W. Hoffman 1947-3-11 823 Sonoma Northeast of Camp Meeker Comment
  RSA622704  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24698 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA74469  Arctostaphylos bakeri subsp. bakeri Milo S. Baker 1933-3-26 7339 Sonoma near summit of Harrison's Grade 1 mi. NE of Occidental Comment
  RSA8489  Arctostaphylos bakeri subsp. bakeri J. T. Howell 1933-4-2 10954 Sonoma 2 miles east of Occidental Comment
  RSA622716  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24764 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622720  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24758 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 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
  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
  CAS-BOT-BC23968  Arctostaphylos canescens subsp. canescens Milo S. Baker Fall 1936 8622 Sonoma Rutherford - Glen Ellen road halfway to summit Comment
  CAS-BOT-BC23851  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1931-3-14 5761 Sonoma Rincon Ridge, near Santa Rosa Comment
  CAS-BOT-BC23886  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1937-4-11 12896 Sonoma Rincon Ridge NE of Santa Rosa Comment
  OBI14518  Arctostaphylos canescens subsp. sonomensis Robert F. Hoover 1963-1-12 23023 Sonoma Rincon Ridge Comment
  SEINET11984865  Arctostaphylos canescens var. sonomensis R. Gankin, Hildreth, W. R.; Milam, K. 1965-1 517 Sonoma 0.2 mi on Rockridge Lane on Montecito Rd, on Sones Property, Rincon Ridge, Santa Rosa Comment
  CAS-BOT-BC23601  Arctostaphylos columbiana Carl B. Wolf 1927-9-2 1343 Sonoma 2 miles south of Anchor Cove. Comment
  CAS-BOT-BC23605  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11744 Sonoma Between Fort Ross and Stewart's Point Comment
  CAS-BOT-BC23646  Arctostaphylos columbiana C. Hart Merriam 1925-7-8 s.n. Sonoma Coast mountains near Kachia Rancheria, about 5 miles east of Stewarts Point 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-BC24976  Arctostaphylos densiflora Walter Knight; Irja Knight 1980-12-23 3856 Sonoma In a ditch along Vine Hill Road across from McConnell's place. Comment
  CAS-BOT-BC24986  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5770 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  CAS-BOT-BC27250  Arctostaphylos densiflora Milo Samuel Baker 1928-4-18 5045 Sonoma Near Vine Hill School House Comment
  UC549448  Arctostaphylos densiflora J. E. Adams 1934-3-28 716 Sonoma Vine Hill School Sta. Rosa Comment
  UC549449  Arctostaphylos densiflora J. E. Adams 1934-3-28 715 Sonoma Vine Hill School Sta. Rosa Comment
  UC549534  Arctostaphylos densiflora J. E. Adams 1934-3-28 717 Sonoma Vine Hill School Sta. Rosa Comment
  UC726208  Arctostaphylos densiflora A. A. Heller 1941-3-2 15881 Sonoma roadside banks just w Vine Hill Schoolhouse (about 9 mi w of Santa Rosa) Comment
  UCD50797  Arctostaphylos densiflora Roman Gankin 1966-3-3 693 Sonoma Vine Hill School Road, ca. 10 miles west of Santa Rosa. Comment
  CAS-BOT-BC23285  Arctostaphylos glandulosa subsp. cushingiana Walter Knight 1963-4-28 s.n. Sonoma Head of Adobe Canyon, south past Hoods Peak Comment
  RSA631180  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1996-6-22 27487 Sonoma Stewarts Road ca. 10 km W of Geyserville. 420 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
  CAS-BOT-BC24722  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5170 Sonoma S. of Mt. Tam. 5.1 mi. w. on kelly Road from Rockpile Road junction. 609 Comment
  CDA10854  Arctostaphylos glandulosa var. cushingiana G. F. Hrusa, G. L. Stebbins 1994-4-8 11730 Sonoma North Coast Biodiversity Arena; N facing slope at Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  RSA339412  Arctostaphylos hispidula Walter Knight, Irja Knight, Stephen W. Edwards 1985-1-27 5174 Sonoma about 100 yards west of road. At the upper side of a ravine. 7.7 miles from west end of Sonoma Lake bridge on Rockpile Rd. 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
  CAS-BOT-BC38989  Arctostaphylos manzanita Roger Raiche 1983-7-4 30475 Sonoma East Austin Creek State Rec. Area, Morrison Ridge above Gilliam Creek, along old mine road. 274 Comment
  CDA11917  Arctostaphylos manzanita G. F. Hrusa, G. L. Stebbins 1994-4-8 11734 Sonoma North Coast Biodiversity Arena; Cavedale edaphic island, Cavedale Rd. approx. 2.7 m E of Hwy 12. Comment
  UCD36698  Arctostaphylos manzanita Beecher Crampton 1955-6-17 2978 Sonoma Sonoma County, 2.4 miles south of Monte Rio, road to Camp Meeker. Comment
  RSA202113  Arctostaphylos manzanita Freed W. Hoffman 768 Sonoma Del Preti Hill, headwaters of Fife Creek, near Guerneville. Comment
  RSA633053  Arctostaphylos manzanita Jon E. Keeley 1996-6-22 27485 Sonoma Lake Sonoma Overlook off Stewarts Road. 250 Comment
  SEINET11990969  Arctostaphylos manzanita Unknown 1983-1 30491 A Sonoma near intersection between East Austin Creek & Gray Creek 140 Comment
  SEINET11995488  Arctostaphylos manzanita W. Knight, Knight, I.; Edwards, S. 1987-1 6336 Sonoma Pepperwood, Devil's Kitchen 229 Comment
  SEINET11987123  Arctostaphylos manzanita subsp. bakeri S. W. Edwards 1981-1 s.n. Sonoma Green Hill Rd Comment
  CAS-BOT-BC38910  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1923-5-9 11764 Sonoma Mt. St. Helena Comment
  UC517513  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11301 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38652  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-3-14 5779 Sonoma Vine Hill District, 10 miles west of Santa Rosa Comment
  CAS-BOT-BC38691  Arctostaphylos manzanita subsp. manzanita Peter Rubtzoff 1951-9-15 744 Sonoma Dry, open area separating the western branch of the Upper Marsh from the eastern. Comment
  CAS-BOT-BC38695  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; Roger Raiche; Steve Edwards 1983-7-3 4751 Sonoma The Cedars, near Cazadero 274 Comment
  UC1388362  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-2-28 766 Sonoma near Healdsburg (creek is a branch of Mill Creek); North Coast Ranges, Wild Hog Ridge, headwaters of Palmer Cre Comment
  UC1388366  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-2-27 769 Sonoma near Guerneville; North Coast Ranges, Lone Mountain Farm Comment
  UC480591  Arctostaphylos manzanita subsp. manzanita Carl Meyer 1928-3-3 303 Sonoma Santa Rosa Comment
  UC535022  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 9 Sonoma residence of M. S. Baker Mt. Hood (w base of mt.) Comment
  UCD110453  Arctostaphylos manzanita subsp. manzanita Christopher Mallek 2008-1 s.n. Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC47341  Arctostaphylos stanfordiana John Thomas Howell 1931-3-14 5777 Sonoma Vine Hill District, 10 mi. w. of Santa Rosa. Comment
  CDA11229  Arctostaphylos stanfordiana G. F. Hrusa 1989-1-1 5798 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. up Cavedale Rd. from Hwy 12 near Kenwood. Comment
  UC1614287  Arctostaphylos stanfordiana Charles M. Belshaw 1936-3-7 1559 Sonoma 1/4 mi w of Trenton Comment
  UC535025  Arctostaphylos stanfordiana H. F. Copeland 1933-3-18 A 6 Sonoma near Santa Rosa; Rincon Ridge Comment
  CAS-BOT-BC43879  Arctostaphylos stanfordiana Milo S. Baker 1929-6-1 3571 Sonoma Near Vene Hill School House Comment
  SEINET11987349  Arctostaphylos stanfordiana W. Knight, Knight, I. 1981-1 3960 Sonoma 2.3 mi up Cavedale Rd from junction of CA 12 Comment
  SEINET12524558 Image available Arctostaphylos stanfordiana L. S. Rose 1934-1 34032 Sonoma 2 mi E of Occidental. Comment
  JEPS83503  Arctostaphylos stanfordiana subsp. decumbens Jack and Betty Guggolz 1986-2-9 843 Sonoma just inside conservation easement at end of Bluesage Court; Southridge Development Comment
  JEPS95237  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS98846  Arctostaphylos stanfordiana subsp. decumbens unknown 1967-3-19 Sonoma W of Healdsburg (on Dorman Canyon Rd); Dry Creek Watershed Comment
  SBBG100093  Arctostaphylos stanfordiana subsp. decumbens J. Guggolz, B. Guggolz 1985-6-10 838 Sonoma just outside Conservation Easement at the end of Bluesage Court in Southridge Development Comment
  RSA107836  Arctostaphylos stanfordiana subsp. stanfordiana L. S. Rose 1955-3-21 53034 Sonoma Rincon Ridge, 2 mi. NE of Santa Rosa. 152 Comment
  RSA517038  Arctostaphylos stanfordiana subsp. stanfordiana Jack Guggolz, Betty Guggolz 1986-2-9 844 Sonoma North of Guerneville Road and west of Frei Road. Comment
  RSA517039  Arctostaphylos stanfordiana subsp. stanfordiana Jack Guggolz, Betty Guggolz 1986-3-3 851 Sonoma 1.2 miles from West Dry Creek Road on south side of Chamise Ridge Road across from spur road to the north. (west of Geyserville) Comment
  CAS-BOT-BC47204  Arctostaphylos uva-ursi Roger Raiche 1983-7-5 30488 Sonoma Horseshoe Point, near Kruse Rhododendron State Reserve. Comment
  RSA13420  Arctostaphylos viscida subsp. viscida H. F. Copeland 1933-3-18 A- 14 Sonoma Vine Hill region on College Avenue Highway, west of Santa Rosa. Comment
  CAS-BOT-BC47462  Arctostaphylos viscida subsp. viscida Irja Knight; Walter Knight 1964-1-26 822 Sonoma Ca 1 m. high. Foote's Ravine north end Knight's Valley. 1 mi W. Ida Clayton Rd. Comment
  SEINET11845326  Arctotheca calendula W. Knight, Knight, I. 1990-1 6588 Sonoma Petaluma, Lynch Creek Drive Comment
  SEINET11262973  Aristolochia californica James Faro 1962-4-22 5 Sonoma South side of Lake Ralphine in Santa Rosa.; 0 Comment
  CAS-BOT-BC400481  Aristolochia californica Greg de Nevers 1980-3-19 552 Sonoma Pepperwood Ranch. Confluence of Leslie Creek with Mark West Creek 68 Comment
  UCD98503  Armeria maritima subsp. californica Ross Swenerton 1966-4-16 22 Sonoma On hill overlooking ocean, Duncan's Landing. 15 Comment
  JEPS35855  Arnica discoidea M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma between Guerneville and Monte Rio Russian River Comment
  CAS-BOT-BC172579  Artemisia Peter Rubtzoff 1951-9-3 730 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC175853  Artemisia Peter Rubtzoff 1961-9-20 4747 Sonoma Americano Creek area, 0.9 miles west of Bloomfield. Comment
  SD41469  Artemisia douglasiana Edith A. Purer 1932-7-24 Sonoma Near Bodega Bay Comment
  CAS-BOT-BC90490  Artemisia douglasiana Mary P. Wells 1982-8-21 s.n. Sonoma Gerstle Cove, Salt Point State Park Comment
  RSA791570  Artemisia douglasiana Peter Rubtzoff 1973-8-31 7292 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC97233  Artemisia suksdorfii J. Clausen 1939-7-20 1715 Sonoma along road just north of Jenner, towards Fort Ross Comment
  CAS-BOT-BC97234  Artemisia suksdorfii J. Clausen 1939-7-20 1715 (Tr. 1330) Sonoma along road just north of Jenner, towards Fort Ross Comment
  UC1195651  Asclepias solanoana A. R. Kruckeberg 1949-6-4 1762 Sonoma ca 4 mi above Pine Flat (sw of Cobb Mtn.) Comment
  JEPS128388  Aspidotis densa Roger Raiche 2000-4-23 045 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1299771  Aspidotis densa Freed W. Hoffman 1947-3-5 812 Sonoma near Guerneville (Gilliam Creek) Comment
  CAS-BOT-BC376426  Asteraceae Greg de Nevers 1995-5-9 10725 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In quarry by Ward House. 400 Comment
  CAS-BOT-BC186742  Astragalus gambelianus Greg de Nevers; Frank Almeda 1987-4-11 8141 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC186826  Astragalus gambelianus G. DeNevers 1981-4-25 833 Sonoma Lower Pepperwood entrance Comment
  SBBG221  Athyrium filix-femina var. cyclosorum H. and M. Dearing 1939-5-15 3385 Sonoma N of Fort Ross Comment
  CAS-BOT-BC66151  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1959-9-12 4256 Sonoma Willow Creek Marsh Comment
  POM143742  Athysanus pusillus A. A. Heller, H. E. Brown 1902-3-24 s.n. Sonoma Hills East of Santa Rosa. Comment
  SEINET3148002  Athysanus pusillus M. S. Baker 1898-3-26 733 Sonoma Hills near McDonald Reservoir Comment
  UC604106  Atriplex leucophylla Milo S. Baker 1938-6-6 9016 Sonoma beach Salmon Creek Comment
  UCD143729  Atriplex leucophylla Mary M. Hektner 1976-12-14 276 Sonoma Shell Beach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC227671  Avena Peter Rubtzoff 1980-5-26 9450 Sonoma Forest Hills, 5.5 mi. east of Guerneville. Russian River. Comment
  CAS-BOT-BC146136  Avena barbata A. A. Heller 1902-3-26 5157 Sonoma Santa Rosa Creek. Comment
  UCD38525  Avena barbata Beecher Crampton 1956-3-13 3227 Sonoma Asti. Comment
  RSA785740  Avena fatua Carrie A. Herd 1982-5-4 85 Sonoma Rohnert Park, C.S.U, Sonoma. between dorms and Rancho Cotati High School. Comment
  CAS-BOT-BC98648  Baccharis douglasii G. DeNevers 1981-7-11 1746 A Sonoma Pepperwood Ranch - at the big spring at the Skovie Comment
  CAS-BOT-BC99590  Baccharis pilularis Carl B. Wolf; E. R. Johnson 1934-10-13 6182 Sonoma 2 4/10 mi. no. of mouth of Russian River 60 Comment
  UC527412  Baccharis pilularis Carl B. Wolf and E. R. Johnson 1934-10-13 Sonoma 2 4/10 mi n of mouth of Russian River 60 Comment
  CAS-BOT-BC98218  Baccharis salicifolia Mrs. Alexander McCallum 1898-10-1 s.n. Sonoma Preston Comment
  UCD163790  Barbarea Peter Rubtzoff 1989-3-13 9982 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  RSA0025200  Barbarea Peter Rubtzoff 1989-6-10 10005 Sonoma Along Russian River, ca. 6 mi east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC16692  Barbarea orthoceras A. A. Heller; H. E. Brown 1902-3-20 5106 Sonoma Near Windsor. Comment
  UCR254890  Barbarea vulgaris Peter Rubtzoff 1989-6-10 10006 Sonoma Along Russian River, c. 6 miles east of Guerneville, at 9850 River Road 14 Comment
  CAS-BOT-BC145839  Beckmannia syzigachne John Thomas Howell 1930-6-8 5239 Sonoma Bodega Road, 3 miles east of Valley Ford. Comment
  UC37448  Beckmannia syzigachne Michener and Bioletti 1893-6-10 114 Sonoma Kenwood Comment
  UCD56780  Beckmannia syzigachne A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3584 Sonoma On Occidental Road near Barstow Station. Comment
  SEINET10514173  Beckmannia syzigachne A. Arthur Heller 1902-6-7 Heller 5650 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  SEINET10514183  Beckmannia syzigachne A. Arthur Heller 1902-6-27 Heller 5780 Sonoma West Windsor near Russian River. Comment
  CAS-BOT-BC106389  Bellis perennis L. R. Abrams 1920-7-3 7597 Sonoma Gualala River Comment
  CAS-BOT-BC75775  Berberis pinnata A. A. Heller; H. E. Brown 1902-4-11 5257 Sonoma Bodega Bay. Comment
  HSC100948  Betula pendula Peter Warner 2011-4-6 186 Sonoma Pitkin Marsh, lower, ~750 m N2 deg. E from junction of Hwy. 116 and Guerneville Rd., S of main stream channel. 38 Comment
  RSA790983  Bidens cernua Peter Rubtzoff, Nancy Harrison, Edward Lee, Kenneth Stocking 1979-7-21 9293 Sonoma Bennett Mountain Lake. Comment
  SJSU6039  Bidens frondosa C. W. Sharsmith 1972-6-24 7811 Sonoma Laguna de Santa Rosa N of Sebastopol, E of Graton Comment
  UC727762  Bidens frondosa Milo S. Baker 1946-8-17 11560 Sonoma at the crossing of the Occidental Road (The Laguna); The Laguna Comment
  RSA0020350  Bidens frondosa Peter Rubtzoff 1960-9-14 4528 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  JEPS54478  Bidens laevis Rimo Bacigalupi 1967-8-30 9311 Sonoma in central part of upper Pitkin Marsh (just below (s of) confluence of two upper (n) arms, very close to) 45 Comment
  UCR248962  Bidens laevis Peter Rubtzoff 1961-9-6 4740 Sonoma Laguna de Santa Rosa, northeast of Gratton 24 Comment
  CAS-BOT-BC290698  Bidens laevis Peter Rubtzoff 1958-9-27 4015 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mi. north of Guerneville Road) Comment
  SEINET7249073  Bidens laevis Peter Rubtzoff 1962-1 5130 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC100247  Blennosperma bakeri Peter H. Raven 1963-4-28 18251 Sonoma 4.7 miles south of El Verano on Arnold Drive Comment
  CAS-BOT-BC100254  Blennosperma bakeri John Thomas Howell 1949-4-6 25303 Sonoma Low field southwest of Sonoma. Type locality. 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
  CAS-BOT-BC105962  Blennosperma nanum var. nanum G. H. Mallory 1920-3-29 s.n. Sonoma Hills at east end of Sonoma Ave., Santa Rosa Comment
  UC337456  Blennosperma nanum var. nanum J. G. Lemmon 1888-3-1 Sonoma Warner's Ranch, Healdsburg Comment
  UC1299661  Boechera breweri Freed W. Hoffman 1946-8-14 592 Sonoma Rocky Mountain North Coast Ranges Comment
  CAS-BOT-BC154973  Boisduvalia densiflora Peter Rubtzoff 1958-9-6 3976 Sonoma Laguna de Santa Rosa, N of Cunningham (near Todd Road). Comment
  RSA790716  Boisduvalia densiflora Peter Rubtzoff 1961-7-22 4660 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC28223  Bolboschoenus fluviatilis Peter Rubtzoff 1955-8-7 2033 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC28224  Bolboschoenus fluviatilis Peter Rubtzoff 1958-5-11 3656 Sonoma Laguna de Santa Rosa NE of Graton, nr. Guerneville Road. Comment
  UC56354  Bolboschoenus maritimus J. Burtt Davy 1897-9-19 4054 Sonoma Petaluma. Comment
  CAS-BOT-BC31363  Bolboschoenus maritimus Gregory Clark de Nevers; S. Castagnoli 1981-8-2 1791 Sonoma On sand bar in Mark West Creek, at confluence with Leslie Creek. Comment
  CAS-BOT-BC329264  Bolboschoenus maritimus Peter Rubtzoff 1961-9-20 4750 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC290567  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1970-8-18 6306 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC290565  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1960-10-29 4579 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC368070  Boykinia Greg de Nevers 1998-5-31 11268 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Mark West Creek below Michele Lane. 400 Comment
  POM142185  Boykinia occidentalis Michener, Bioletti 1893-06 13 Sonoma Adobe Canyon Comment
  UCD102603  Boykinia occidentalis Frederica Bowcutt 1994-7-5 1940 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 S edge of Sonoma Creek just upstream from confluence with Bear Creek. Immed. E of Goodspeed Trail Bridge over Sonoma Creek. N of Adobe Canyon Road about 60 ft. 225 Comment
  CAS-BOT-BC36618  Brassica nigra Mary P. Wells 1984-5-7 260 Sonoma Santa Rosa. Rincon Valley. Friends House. Comment
  CAS-BOT-BC36708  Brassica rapa Mary P. Wells 1984-5-16 s.n. Sonoma Santa Rosa. Rincon Valley. Friends House grounds. Comment
  CAS-BOT-BC100472  Brickellia californica H. E. McMinn 1922-6-7 187 Sonoma near Cosmo by Russian River Comment
  CSUSB472  Briza maxima L. L. Williams 1971-5-13 Sonoma Collected in North Coastal Sage at junction of road inland with Highway 1, south of Stewarts Point on headland. Comment
  JEPS45817  Briza maxima Eleanor Armstrong 1932-5-16 154 Sonoma 2 mi southeast of Camp Meeker on ridge 106 Comment
  SEINET10514376  Briza media Michener MICHENER s.n. Sonoma Kenwood. Comment
  CAS-BOT-BC145285  Briza minor Peter Rubtzoff 1961-10-15 s.n. Sonoma Vacation Beach, 2 miles below Guerneville. On Russian River bottom. Comment
  CAS-BOT-BC145287  Briza minor Peter Rubtzoff 1956-9-11 2852 Sonoma Vacation Beach, near Guerneville. Margin of a pool on Russian River bottom. Comment
  CAS-BOT-BC145298  Briza minor L. Beane; Lois E. James 1949-5-16 1946 Sonoma About 3 miles south of Healdsburg. Comment
  CAS-BOT-BC145299  Briza minor John H. Thomas 1966-5-8 11602 Sonoma 1.4 mile west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  RSA22248  Briza minor Leo Koch 1938-4-21 82 Sonoma Hayfield along Redwood Highway about four miles north of Santa Rosa Comment
  JEPS79162  Brodiaea appendiculata Nancy Harrison 1980-5-16 2125 Sonoma directly s. of vineyard and Piner Elementary School (Piner and Fulton roads are north, west Santa Rosa); west Santa Rosa Comment
  JEPS5690  Brodiaea californica var. leptandra W. L. Jepson 1918-6-23 7654 Sonoma Windsor, Poor Man's Flat Comment
  UC843568  Brodiaea elegans subsp. elegans Lewis S. Rose 1940-5-22 40363 Sonoma Sonoma 30 Comment
  UCD160815  Brodiaea elegans subsp. elegans James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3354 Sonoma Section 10, One-quarter mile west of Eagle Rock on Geysers Road, The Geysers. (Elevation and coordinates estimated by label maker). 396 Comment
  JEPS18123  Brodiaea stellaris Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-31 5675 Sonoma at base The Butcher Knife (along secondary road following creek); Big Austin Creek 182 Comment
  JEPS7708  Brodiaea terrestris subsp. terrestris W. L. Jepson 1921-6-3 9308 Sonoma Wilfred station Santa Rosa Valley Comment
  UC119909  Brodiaea terrestris subsp. terrestris Katharine Brandegee 1905-6-8 Sonoma between Santa Rosa Sebastopol Comment
  CAS-BOT-BC144150  Bromus F. G. Krauss 1895-5-6 s.n. Sonoma Near Franz Valley, Calistoga. Comment
  RSA127010  Bromus carinatus H. S. Yates 1937-5-30 6556 Sonoma 2 miles N.W. of Freestone Comment
  UCD36682  Bromus carinatus Beecher Crampton 1955-6-17 2929 Sonoma Sonoma County, 1.6 miles west of Forestville, along State Highway 12. Comment
  UCD58187  Bromus carinatus David L. Morgan 1961-4-11 s.n. Sonoma Hwy. 101, 3 min. S of Petaluma. Comment
  CAS-BOT-BC149088  Bromus carinatus var. carinatus John H. Thomas 1976-6-16 18343 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC149095  Bromus carinatus var. carinatus David L. Morgan 1956-4-9 s.n. Sonoma Mountain View Avenue. Comment
  CAS-BOT-BC149097  Bromus carinatus var. carinatus John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53991 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 Comment
  JEPS128361  Bromus carinatus var. carinatus Roger Raiche 2000-6-2 127 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC155656  Bromus diandrus David L. Morgan 1956-6-26 s.n. Sonoma Bank of Austen Creek, 3 miles west of Monte Rio, on State Highway #12. Comment
  CAS-BOT-BC155668  Bromus diandrus Peter H. Raven 1950-4-6 1577 Sonoma Cotati to Santa Rosa. 45 Comment
  CAS-BOT-BC155669  Bromus diandrus A. A. Heller 1902-4-17 5322 Sonoma Santa Rosa. Comment
  LA13805  Bromus diandrus Joseph Andorfer Ewan; 1935-5-12 9222 Sonoma Bodega Bay road 2 mi. W of Bodega Comment
  CAS-BOT-BC155208  Bromus hordeaceus David L. Morgan 1961-5-14 s.n. Sonoma Gold Ridge Road, 4 miles west of Sebastopol. Comment
  CAS-BOT-BC155210  Bromus hordeaceus Peter Rubtzoff 1951-6-16 238 Sonoma Pitkin Marsh near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC155212  Bromus hordeaceus K. Wagnon 1939-4-26 175 Sonoma Near Wagnon home, 5 miles west of Sebastopol. Comment
  CAS-BOT-BC155250  Bromus hordeaceus John H. Thomas 1966-5-8 11596 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  CAS-BOT-BC162390  Bromus laevipes Peter Rubtzoff 1952-6-3 1146 Sonoma South slopes of Fitch Mountain, near Healdsburg. Comment
  CAS-BOT-BC162392  Bromus laevipes G. DeNevers 1981-5-15 1159 Sonoma Pepperwood Ranch. North arm of Garrison Canyon. Comment
  UCR151572  Bromus madritensis Beecher Crampton 1954-4-26 1794 Sonoma N end of Alexander Valley, border of Mendocino Co., 3 miles north of Cloverdale along U.S. Highway 101 122 Comment
  CAS-BOT-BC162255  Bromus maritimus David L. Morgan 1961-5-7 s.n. Sonoma Doran Park, about 1 mile south of Bodega Bay. Comment
  UC766916  Bromus vulgaris R. F. Hoover 1941-5-14 5097 Sonoma sw of Occidental (near Joy District School) Comment
  UCD60243  Bromus vulgaris B. Crampton 1955-6-17 2928 Sonoma 1.6 miles west of Forestville. Comment
  POM232048  Cakile maritima var. maritima Roxana S. Ferris 1937-8-18 9370 Sonoma Near mouth of Salmon Creek on Bodega Bay. Comment
  CAS-BOT-BC185409  Calamagrostis bolanderi Mary P. Wells 1983-8-3 155 Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch. Comment
  CAS-BOT-BC185411  Calamagrostis bolanderi Peter Rubtzoff 1951-6-10 194 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CHSC80116  Calamagrostis bolanderi Colette Beaupre 2000-7-6 Sonoma Near Sea Ranch, on Gualala Redwoods, Inc. property, in portion of German Rancho, MDB and M. 182 Comment
  UC1146621  Calamagrostis bolanderi Freed W. Hoffman 1943-6-20 2058 Sonoma near Salt Point (Eckert Ranch); North Coast Ranges, Sonoma Coast Comment
  SEINET241522 Image available Calamagrostis bolanderi Baraba Wilson, Sami Gray 1997-7-31 8900 Sonoma Sea Ranch; Big Tree loop trail, which originates between unites 27A and 29A off Timber Ridge Rd., off Deerfield Loop Rd. 171 Comment
  CAS-BOT-BC185129  Calamagrostis nutkaensis Peter Rubtzoff 1963-8-17 5228 Sonoma Russian River Mouth Marsh. Comment
  UC1131348  Calamagrostis nutkaensis H. S. Yates 1937-5-30 6559 Sonoma 2 mi ne Freestone; Sebastapol Quadrangle Comment
  UCD57515  Calamagrostis nutkaensis Chris Bowen 1974-6-2 146 Sonoma near State Highway 1, Sea Ranch, Unit 7 Owners' Map, near Whaler's Reach. 30 Comment
  CAS-BOT-BC185117  Calamagrostis ophitidis R. F. Hoover 1965-6-29 9475 Sonoma North of summit of Harrison Grade road near Occidental. Comment
  JEPS128358  Calamagrostis ophitidis Roger Raiche 2000-5-29 126 .00 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  RSA74072  Calamagrostis ophitidis Baker 1947-5-30 s.n. Sonoma 2 miles NE of Occidental along Harrison Grade Comment
  CAS-BOT-BC361366  Calandrinia breweri Greg de Nevers 1997-4-12 10930 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  RSA0065162  Calandrinia breweri Greg de Nevers 1997-4-24 10970 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  UCD144659  Calandrinia ciliata Frederica Bowcutt 1996-3-24 2080 Sonoma Sugarloaf Ridge State Park; about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles northeast of Kenwood and 18 air miles northwest of Napa. About 1/2 air miles S of Red Mtn, along Vista Trail. 563 Comment
  UCD33564  Calendula arvensis Beecher Crampton 1970-3-12 8545 Sonoma Sonoma, 1st. Street West, just south of r.r. depot. Comment
  UCSB22467  Calendula arvensis McCarthy, Sharon 1965-4-17 Sonoma Sonoma, California 25 Comment
  UCR142045  Calendula officinalis Beecher Crampton 1970-3-12 8545 Sonoma Sonoma, 1st Street West, just south of RR depot 30 Comment
  UCR255723  Callitriche Greg de Nevers 1998-4-28 11214 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCSB45513  Callitriche palustris Roos, John 1957-7-2 Sonoma Miller's Ridge Comment
  CAS-BOT-BC293678  Callitriche trochlearis Peter Rubtzoff 1961-5-24 4607 Sonoma Upper Stemple Creek Marsh. Comment
  UC17852  Callitriche trochlearis J. Burtt Davy 1896-3-14 1665 Sonoma Cazadero Comment
  UCR249030  Callitriche verna Peter Rubtzoff 1974-4-6 7348 Sonoma Kenwood Marsh 120 Comment
  JEPS128202  Calochortus amabilis Roger Raiche 2000-5-4 066 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS78289  Calochortus amabilis Susan Smith, Jim Roof, and Barbara Deutach 1979-6-17 Sonoma about 8 mi w Calistoga (along Calistoga road) Comment
  UC843631  Calochortus amabilis Mrs. Eliz. Parsons Hawver Jun 1915 Sonoma Skaggs Springs Comment
  CAS-BOT-BC483284  Calochortus amabilis Elsa Ruckert 1960-4-29 57 -408 Sonoma Trinity Road, 1/4 mile north form Highway 12 152 Comment
  SEINET12048678  Calochortus amabilis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -079 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 0.5 mi N on Cavedale Rd from jct 152 Comment
  SEINET6165529 Image available Calochortus amabilis Unknown 1981-5-18 s.n. Sonoma Franz valley rd 1/10 mile south of Franz valley school rd Comment
  UCD139529  Calochortus luteus Frederica Bowcutt 1994-6-12 1850 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 75 yards N of Sonoma Creek. 411 Comment
  CAS-BOT-BC492636  Calochortus luteus A. Day 1982-6-1 82 -62 Sonoma Pepperwood Ranch Comment
  JEPS82297  Calochortus raichei Roger Raiche 1983-6-25 20424 Sonoma above Layton Mine (Austin Creek watershed); The Cedars, Austin Creek 365 Comment
  NY319591  Calochortus raichei R. Raiche 1986-7-7 60214 Sonoma N of Cazadero, The Cedars, headwaters of Big Austin Creek, near Laton Mine. 840 Comment
  CAS-BOT-BC132638  Calochortus uniflorus Rimo Bacigalupi 1926-3-27 1249 Sonoma Meadow opposite Myrtledale Geyser, 1 1/2 miles north of Calistoga Comment
  UC1106200  Calochortus uniflorus Peter H. Raven 1950-4-6 1566 Sonoma Cotati to Santa Rosa 152 Comment
  SBBG22515  Calochortus venustus H. and M. Dearing 1939-5-15 3396 Sonoma Italian Swiss Colony at Asti Comment
  CAS-BOT-BC270706  Calycadenia multiglandulosa Roxana S. Ferris; Laura Lorraine 1961-6-14 13548 Sonoma Junction of Occidental Road with Facendini Lane Comment
  UCD129819  Calycadenia multiglandulosa Jack Guggolz; Betty Guggolz 1990-6-16 1064 Sonoma north side of intersection of Occidental Road and Facendini Lane on serpentine. Comment
  UC615100  Calycadenia pauciflora Beryl O. Schreiber 1934-5-16 1127 Sonoma Healdsburg, Fitch Mountain Road Comment
  POM215112  Calycadenia truncata subsp. truncata J. T. Howell 1932-10-9 10812 Sonoma Sonoma Creek Canyon near Kenwood Springs Comment
  CAS-BOT-BC90991  Calycanthus occidentalis Peter Rubtzoff 1971-9-3 6698 Sonoma Along southeastern border of Spring Creek Reservoir area. Comment
  CAS-BOT-BC90995  Calycanthus occidentalis A. A. Heller 1902-6-11 5689 Sonoma Santa Rosa Creek, east of Santa Rosa. Comment
  CAS-BOT-BC91000  Calycanthus occidentalis H. E. McMinn 1922-6-7 180 Sonoma Near Monte Rio. Comment
  JEPS40306  Calycanthus occidentalis M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma near Guerneville (Russian River); Russian River Comment
  JEPS78744  Calycanthus occidentalis Edward Lee 1936-6-7 2176 Sonoma Bohemian Grove, Trail No. 10, by streamlet Bohemian Grove, Trail No. 10 Comment
  POM194538  Calycanthus occidentalis Y. Mexia 1929-6-2 2397 Sonoma Near Santa Rosa. Comment
  UC1196353  Calycanthus occidentalis Joseph P. Tracy 1935-7-7 14044 Sonoma near Geysers; Northern Coast Ranges 609 Comment
  JEPS64304  Calypso bulbosa Herman and King 1919-4-15 Sonoma Camp Meeker 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
  UC23186  Calystegia collina subsp. oxyphylla Edw. L. Greene 1892-1 Sonoma Mt. St. Helena Comment
  CDA39871  Calystegia collina subsp. oxyphylla T. C. Fuller 1958-5-24 4002 Sonoma 1/2 mile east of Occidental, State Department of Forestry Station. 0 Comment
  CAS-BOT-BC215788  Calystegia macrostegia subsp. intermedia Greg de Nevers 1993-5-30 10458 Sonoma 3450 Franz Valley Road, Pepperwood Ranch Natural Preserve 457 Comment
  CAS-BOT-BC436379  Calystegia occidentalis subsp. occidentalis Alice Eastwood 1915-6-5 4570 Sonoma Petrified Forest Comment
  UCR255740  Calystegia purpurata subsp. purpurata Greg de Nevers 1993-5-9 10440 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC224744  Calystegia purpurata subsp. saxicola R. K. Brummitt 1997-6-10 19682 Sonoma 1 km S of Sereno Del Mar, just S of Schoolhouse Beach 15 Comment
  JEPS105775  Calystegia purpurata subsp. saxicola Ann Howald 2004-5-29 2390 Sonoma The Sea Ranch, approx. 5 mi S of Gualala, immediate coastal bluff W of One-eyed Jacks picnic area, above Shell Beach 9 Comment
  SD73206  Calystegia purpurata subsp. saxicola Darley F. Howe 1969-5-28 4611 Sonoma 13.5 miles north of Jenner on Highway 1 Comment
  UCD126166  Calystegia soldanella Mary M. Hektner; Cathy Hendel 1974-7-25 168 Sonoma north of Galleon's Reach, Unit 7 Owner's Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC436455  Calystegia subacaulis Lewis S. Rose 1941-5-22 41251 Sonoma Rincon Ridge, 4 mi. E of Santa Rosa 121 Comment
  CAS-BOT-BC224353  Calystegia subacaulis subsp. subacaulis J. W. Congdon 1880-6-13 s.n. Sonoma Petaluma Comment
  SEINET3885514  Camassia quamash Keller, McDowell 1940-5-15 s.n. Sonoma Bennett Mountain. Mer. Boise.; 0 1219 Comment
  CAS-BOT-BC376398  Camassia quamash subsp. linearis Greg de Nevers 1996-4-18 10790 Sonoma Knight's Valley Marsh, on Bavarian Lion Ranch. 137 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
  CAS-BOT-BC266422  Campanula californica Carl B. Wolf 1927-9-2 1355 Sonoma 1 mile S of the Gualala RIver on Coast Road Comment
  CAS-BOT-BC184127  Capsella bursa-pastoris Peter Rubtzoff 1960-6-25 4510 Sonoma Laguna de Santa Rosa east of Graton between Occidental and Guerneville Roads Comment
  CAS-BOT-BC37770  Cardamine californica F. Almeda; G. DeNevers 1981-3-30 4889 Sonoma Pepperwood Ranch. Summit and east-facing slope of Three Tree Hill. Comment
  RSA177957  Cardamine californica var. integrifolia R. F. Thorne 1965-4-20 34330 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  SEINET9367525  Cardamine hirsuta John Nelson, Wnek, Richard 2000-3-8 20950 Sonoma Frequent and weedy in open flower garden; residence/parking lot edge near post office; downtown Guerneville. With Oxalis oregana, Stachys rigida, Nemophila parviflora, Comment
  UCD114519  Cardamine hirsuta John Thomas Howell 1946-3-31 21589 Sonoma Sonoma. Comment
  JEPS128267  Cardamine oligosperma Roger Raiche 2000-4-8 027 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC251241  Cardionema ramosissimum Peter Rubtzoff 1960-5-18 4369 Sonoma Bodega Head Marsh. Comment
  RSA784715  Cardionema ramosissimum Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-3 164 Sonoma Westside Rd, Bodega bay area Comment
  UC1795018  Carduus R. K. Brummitt, A. Wolf, and R. W. Howe 1998-5-15 19862 Sonoma 17 km NNE of Healdsburg, on Pine Flat Road near Red Hill 650 Comment
  CAS-BOT-BC173679  Carduus Peter Rubtzoff 1959-6-13 4141 Sonoma Willow Creek Marsh. Comment
  CDA32954  Carduus pycnocephalus D. Barbe & P. Hiatt 1979-5-1 Sonoma South of Asti; on Asti Road, 0.45 mile south of Washington School Road. 0 Comment
  RSA94306  Carduus pycnocephalus Peter Rubtzoff 1951-7-21 480 Sonoma Southern half of Lower Marsh; near the highway Comment
  CAS-BOT-BC173713  Carex Peter Rubtzoff; Nancy Harrison 1978-6-11 9213 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  CAS-BOT-BC176184  Carex Peter Rubtzoff; Nancy Harrison 1978-6-11 9208 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  UCD140992  Carex G. F. Hrusa; R. Gross 1996-6-30 13063 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. Single colony on W side of pool. 700 Comment
  UCD161841  Carex James A. Neilson Jr. 1975-7-8 3379 a Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD164192  Carex Peter Rubtzoff; Nancy Harrison 1978-6-11 9206 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  CAS-BOT-BC422340  Carex Peter Rubtzoff; Betty Lovell 1975-8-11 8313 Sonoma Kenwood Marsh. Comment
  UCR254740  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh Comment
  UCR255715  Carex abrupta Peter Rubtzoff 1960-5-18 4392 Sonoma Bodega Head Marsh 6 Comment
  CAS-BOT-BC344828  Carex abrupta Peter Rubtzoff 1962-10-9 s.n. Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC18139  Carex athrostachya Peter Rubtzoff 1957-5-26 3361 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC320571  Carex athrostachya Peter Rubtzoff 1974-6-2 7507 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC19367  Carex barbarae A. A. Heller 1902-7-1 5797 Sonoma Lagoon at Sebastopol. Comment
  CAS-BOT-BC328120  Carex barbarae Peter Rubtzoff 1974-6-2 7512 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC422353  Carex barbarae Peter Rubtzoff 1958-5-10 3637 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CDA12902  Carex barbarae G. F. Hrusa, R. Gross, F. Luna 1996-3-29 12736 Sonoma North Coast Biodiversity Arena; Understory of Sequoia sempervirens grove at western terminus of Neeley Rd. approx. 2 m. S of Guerneville and 3 m. N of Bohemian Grove along Russian River. Comment
  UC1017  Carex barbarae H. N. Bolander Apr 1864 3866 Sonoma Russian River Comment
  UCR248957  Carex barbarae Peter Rubtzoff 1958-5-3 3623 Sonoma Atascadero Creek Marsh Comment
  HSC101105  Carex barbarae Peter Warner 2011-6-1 211 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Springs Rd. at Mark West Lodge); on E bank of Mark West Creek, about 150 m NNE of Pelm house. 211 Comment
  RSA0015629  Carex barbarae Peter Rubtzoff 1975-7-3 8152 Sonoma Kenwood Marsh. Comment
  RSA0031800  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncans Mills Marsh. Upper portion of the marsh. Comment
  CAS-BOT-BC34423  Carex cusickii Peter Rubtzoff 1951-7-14 434 Sonoma Pitkin Marsh near Forestville. Southern half of Lower Marsh. Comment
  CAS-BOT-BC34424  Carex cusickii Peter Rubtzoff 1951-6-10 189 Sonoma Pitkin Marsh near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC20477  Carex densa John Thomas Howell; J. W. Stacey 1937-6-6 13019 Sonoma Sebastopol. Comment
  CAS-BOT-BC20487  Carex densa Peter Rubtzoff 1952-5-31 1106 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC20498  Carex densa Peter Rubtzoff 1955-4-30 1795 Sonoma Sonoma County Marshes. Stony Point Marsh. Comment
  UC70609  Carex densa F. Bioletti 1893-5-22 Sonoma Glen Ellen Comment
  CAS-BOT-BC20243  Carex densa Peter Rubtzoff 1968-6-25 5901 Sonoma Lichau Marsh. Comment
  CAS-BOT-BC20505  Carex densa Peter Rubtzoff 1958-5-3 3622 Sonoma Sonoma County Marshes. Atascadero Creek Marsh. Comment
  CAS-BOT-BC20518  Carex densa John Thomas Howell 1943-5-10 17991 Sonoma 1.75 mile N of Windsor. Comment
  RSA91588  Carex densa Alice Eastwood, J. T. Howell 1936-5-19 2500 Sonoma North limits of Santa Rosa. Comment
  SEINET7556735 Image available Carex densa Alice Eastwood 1936-5-19 2500 Sonoma North limits of Santa Rosa. Comment
  CAS-BOT-BC290553  Carex exsiccata Peter Rubtzoff 1958-5-17 3668 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  SEINET10921611  Carex festiva Henry N. Bolander Bolander 3814 Sonoma Meadow near Mark West Creek, Comment
  CAS-BOT-BC20134  Carex feta Peter Rubtzoff 1957-5-11 3328 Sonoma Occidental Marsh. Comment
  RSA0022348  Carex feta Peter Rubtzoff 1975-7-3 8147 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC28367  Carex gracilior Peter Rubtzoff 1954-7-20 1500 Sonoma Guerneville Marsh. Comment
  UCD112363  Carex gracilior Peter Rubtzoff 1954-7-5 1543 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC26256  Carex gracilior H. N. Bolander 3822 Sonoma unspecified Comment
  CAS-BOT-BC28332  Carex gracilior Henry Nicholas Bolander 1864-4-1 3822 a Sonoma Meadow at Cloverdale. Comment
  CAS-BOT-BC331477  Carex gynodynama Peter Rubtzoff 1964-5-20 5317 Sonoma Brooks Gulch Marsh. Comment
  RSA0022421  Carex gynodynama Peter Rubtzoff 1964-5-20 5317 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC21905  Carex harfordii Peter Rubtzoff 1957-5-4 3306 Sonoma Duncan Mills Marsh. At the border of the upper portion of the marsh. Comment
  RSA758131  Carex harfordii Peter Rubtzoff 1954-6-20 1499 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC31175  Carex lemmonii R. F. Hoover 1939-5-30 4111 Sonoma Perry's Ranch near Sebastopol. Comment
  SEINET7485357 Image available Carex lemmonii John Thomas Howell 1957-1 s.n. Sonoma Pitkin Marsh Comment
  UCR248866  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncan Mills Marsh 2 Comment
  JEPS128364  Carex mendocinensis Roger Raiche 2000-5-28 123 .00 Sonoma The Cedars, (shown on SLT maps as Marshall Creek but this is not the name on USGS topo sheets). Gualala River, Wheatfield Fork watershed. Comment
  UC1042355  Carex obnupta Peter Rubtzoff 1951-6-9 165 Sonoma forest s Upper Marsh; Pitkin Marsh Comment
  CAS-BOT-BC119278  Carex ovalis Peter Rubtzoff 1951-6-17 265 Sonoma Pitkin Marsh, near Forestville. Eastern Branch of the Upper Marsh. Comment
  CAS-BOT-BC119250  Carex pachystachya Peter Rubtzoff 1951-6-7 112 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UC904999  Carex praegracilis John Thomas Howell 1947-6-26 23295 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC117672  Carex serratodens Gregory Clark de Nevers 1987-4-25 8164 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd. 400 Comment
  JEPS18140  Carex serratodens Rimo Bacigalupi with G. T. Robbins and Freed Hoffmann 1956-5-30 5660 Sonoma nr. Layton Chromite Mine (headwaters of Big Austin Creek, vicinity of The Cedars); Big Austin Creek 266 Comment
  UCD161822  Carex serratodens James A. Neilson Jr. 1975-5-23 3205 Sonoma Abril property, Truit Creek at Big Sulphur Creek. (Exact location unkown, coordinates estimated by label maker.) Comment
  RSA0023000  Carex serratodens Peter Rubtzoff 1974-6-9 7586 Sonoma Upper Green Valley Marsh. Comment
  UCR248927  Carex simulata Peter Rubtzoff 1975-7-3 8146 Sonoma Kenwood Marsh 120 Comment
  CAS-BOT-BC310296  Carex stipata Peter Rubtzoff 1955-6-4 1904 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC116930  Carex subbracteata Peter Rubtzoff 1960-5-16 4353 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC116932  Carex subbracteata Peter Rubtzoff 1960-5-16 4352 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC371453  Carex subbracteata Peter Rubtzoff 1955-5-14 1842 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC320500  Carex subbracteata var. subbracteata Peter Rubtzoff 1976-5-30 8564 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC115827  Carex subfusca Bolander 3867 Sonoma Russian River Comment
  CAS-BOT-BC422365  Carex tumulicola Peter Rubtzoff 1974-6-2 7505 Sonoma Upper Green Valley Marsh. Comment
  UC836641  Carex tumulicola Lewis S. Rose 1939-5-14 39118 Sonoma 1 mi e Bodega Bay 30 Comment
  LA37651  Carpobrotus edulis Kathleen Baron; 1972-4-15 5 Sonoma Portugese Beach, 1 mi. S of Sonoma Coast State Beach, along Highway 1 Comment
  UC1364567  Carthamus leucocaulos T. C. Fuller 1969-9-16 18901 Sonoma ca 1 mi w Asti turn-off of the freeway (Hwy 101) Comment
  CDA7004  Carthamus leucocaulos T. C. Fuller 1970-5-4 19484 Sonoma 2 miles west of the overpass, Highway 101, Asti. 0 Comment
  CDA7006  Carthamus leucocaulos G. D. Barbe, T. C. Fuller 1972-6-28 951 Sonoma Approximately 1 mile west of U.S. 101 freeway, Asti. 0 Comment
  HSC26187  Carthamus leucocaulos William J. Ferlatte 1972-6-22 1392 Sonoma 1 mile W of Asti Comment
  CAS-BOT-BC371467  Caryophyllaceae Greg de Nevers 1993-5-30 10468 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Piney Canyon Rd. from Bald Hills 400 Comment
  CAS-BOT-BC320502  Caryophyllaceae Peter Rubtzoff; Nancy Harrison 1974-7-13 7676 Sonoma Upper Green Valley Marsh. Comment
  UCD160818  Castilleja affinis James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3481 Sonoma Section 10, along Geysers Road, west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  UC103162  Castilleja ambigua subsp. ambigua J. W. Congdon 1880-5-24 Sonoma Petaluma Comment
  JEPS9415  Castilleja densiflora subsp. densiflora W. L. Jepson 1911-4-30 4187 Sonoma Sonoma Valley 83 Comment
  UC886468  Castilleja densiflora subsp. densiflora Alice Eastwood 1921-4-24 10340 Sonoma Santa Rosa Comment
  SD38277  Castilleja franciscana Edith A. Purer 1932-7-24 4067 Sonoma Bodega bay, to Santa Rosa, along roadside Comment
  CAS-BOT-BC243859  Castilleja latifolia John Thomas Howell 1930-7-27 5401 Sonoma 1 mile north of Fort Ross Comment
  SEINET7042575  Castilleja rubicundula subsp. lithospermoides A. G. Vestal 1947-5-16 s.n. Sonoma Ca. 6.7 miles east of Windsor. Jimtown quadrangle UTM Zone 10, 519948mE, 4276242mN. Comment
  JEPS60454  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1969-6-29 6692 Sonoma 3.9 mi n Jenner (on Highway 1) Comment
Read comments
Jun 1 2015
  JEPS35567  Castilleja wightii L. R. Heckard 1964-6-12 1387 Sonoma about 5 mi n Bodega Bay (at Wrights Beach); Sonoma Coast State Park, Wrights Beach Comment
  JEPS3671  Castilleja wightii C. R. Bell 1951-6-6 1133 Sonoma about 1 mi s Bodega (rocky point between State Hwy 1 and Bodega Bay) Comment
  SEINET12347379  Castilleja wightii F. H. Utech 1988-5-21 88 -223 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Road on CA 1 100 Comment
  CAS-BOT-BC39434  Caulanthus lasiophyllus R. D. Stone 1983-6-14 541 Sonoma Headwaters of Squaw Creek drainage. Ca. 1.2 mile northwest of Geyser Rock. 1005 Comment
  CAS-BOT-BC32771  Ceanothus confusus John Thomas Howell 1937-7-4 13080 Sonoma Rincon Ridge, NE of Santa Rosa Comment
  RSA21894  Ceanothus confusus J. T. Howell 1935-5-5 12619 Sonoma 6 miles from Santa Rosa on road to Sonoma. Comment
  UC870505  Ceanothus confusus Milo S. Baker 1940-6-20 9775 Sonoma top of ridge N of County Hospital, near type locality Comment
  POM136668  Ceanothus cuneatus A. A. Heller 1902-3-12 9027 Sonoma Sonoma Creek, eastern base of Mt. Hood. Comment
  SEINET13945810 Image available Ceanothus cuneatus G. Thomas Robbins 1940-1 295 Sonoma Creek bed of canyon along Chalk Hill road, foothills ca 6 mi E of Windsor. Elev ca 300 ft 91 Comment
  UC70420  Ceanothus cuneatus var. cuneatus Milo S. Baker 1898-6-11 652 Sonoma Little Sulphur Creek Comment
  RSA754440  Ceanothus divergens subsp. confusus Dylan O. Burge 2007-4-10 DOB 833 d Sonoma SE flank of Mount Hood, near the junction of Bear Creek and Sonoma Creek, along the Goodspeed Trail, 3.44 km 19 degrees true NNE of Kenwood. 200 Comment
  SBBG27271  Ceanothus divergens subsp. confusus J. T. Howell 1937-4-11 Sonoma Rincon Ridge, NE of Santa Rosa Comment
  UC18295  Ceanothus foliosus W. H. Brewer 1862-4-18 984 Sonoma near Sonoma Comment
  SEINET13945873 Image available Ceanothus foliosus Lewis S. Rose 1955-1 55061 Sonoma Junction of Vine Hill & School Raods, 10 mi W of Santa Rosa, alt 150 ft 46 Comment
  CAS-BOT-BC64421  Ceanothus foliosus subsp. vineatus Milo S. Baker 1946-4-29 11355 Sonoma Vine Hill region along College Ave. hwy. Comment
  CAS-BOT-BC49901  Ceanothus foliosus var. foliosus Greg de Nevers; Frank Almeda 1987-4-11 8132 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC49913  Ceanothus foliosus var. foliosus D. E. Breedlove 1983-4-11 58671 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA31311  Ceanothus foliosus var. foliosus D. G. Kelch, Ed Biffin 2010-5-3 10 .194 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  JEPS128180  Ceanothus foliosus var. foliosus Roger Raiche 2001-5-17 021 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  RSA0005484  Ceanothus foliosus var. vineatus H. E. McMinn 1936-4-5 4406 Sonoma West of Vine Hill School, ca. 10 miles west of Santa Rosa. Comment
  CAS-BOT-BC49999  Ceanothus gloriosus Milo S. Baker 1935-4-1 8030 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50009  Ceanothus gloriosus John Thomas Howell 1937-4-11 12908 Sonoma MS. Baker place, SW. slope of Mt. Hood Comment
  CAS-BOT-BC50012  Ceanothus gloriosus Milo S. Baker 1935-4-1 8031 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UCD112154  Ceanothus gloriosus var. exaltatus L. Whitney 1932-4-1 s.n. Sonoma Vine Hill, Santa Rosa. Comment
  UC1198031  Ceanothus incanus Joseph P. Tracy 1935-7-7 14045 Sonoma near the Geysers 609 Comment
  UC1299550  Ceanothus incanus Freed W. Hoffman 1947-6-4 598 Sonoma tributary of East Austin Creek Comment
  RSA63688  Ceanothus incanus Howard N. Jensen 1942-4-29 27 Sonoma SW corner science bldg on Santa Rosa Junior College Campus Comment
  UC1176842  Ceanothus jepsonii var. jepsonii Lewis S. Rose 1955-3-21 55030 Sonoma 2 mi NE of Occidental 213 Comment
  SDSU10309  Ceanothus oliganthus var. sorediatus Claire Schneider, Gary Waayers 1993-4-10 10 IV93A Sonoma Located off of Trinity Road., ca. 1.0 mile east from intersection with State Hwy 12. 222 Comment
Read comments
Mar 3 2009
  UCD112305  Ceanothus oliganthus var. sorediatus Frederica Bowcutt 1996-5-19 2133 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 the ridgeline and on the Napa/Sonoma County line, about 1/2 air miles E of Bald Mtn. Gray Pine Trail. 731 Comment
  POM136669  Ceanothus parryi A. A. Heller, H. E. Brown 1902-5-29 5620 Sonoma Mt. Hood. Comment
  SJSU14042  Ceanothus parryi C. L. Schmidt 1986-4-11 1109 Sonoma Trinity Rd, 1.5 mi E of Hwy 12 198 Comment
  UC73364  Ceanothus parryi Milo S. Baker May, 1899 Sonoma near Occidental; Green Valley Comment
  SEINET12210605  Ceanothus parryi W. Knight, Knight, I. 1981-1 3968 Sonoma 2.3 mi up Cavedale Road from junction of State Route #12 Comment
  SEINET13946042 Image available Ceanothus pinetorum A. A. Heller, H. E. Brown 1902-1 5170 Sonoma Western base of Mt. Hood Comment
  UC1299590  Ceanothus prostratus Freed W. Hoffman 1948-5-10 2744 Sonoma e slope Cobb Mountain North Coast Ranges, e slope Cobb Mountain 1219 Comment
  CAS-BOT-BC53047  Ceanothus sonomensis A. A. Heller 1902-6-26 5765 Sonoma Along Sonoma Creek at the foot of Mt. Hood Comment
  CAS-BOT-BC83738  Ceanothus sonomensis D. O. Burge 2008-5-25 991 b Sonoma Mayacmas Mountains, western slope of Hooker Canyon 500 Comment
  UC618361  Ceanothus sonomensis John Thomas Howell 1935-5-5 12609 Sonoma Slopes of Trinity Mt. 2 miles E of Glen Ellen 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
  UC1071391  Ceanothus thyrsiflorus H. S. Yates 1934-4-21 3784 Sonoma near Freestone; Sebastopol Quadrangle Comment
  SEINET11844187  Centaurea calcitrapa W. Knight, Wagnon, K. 1987-1 6486 Sonoma Willow Brook between Corona Road & Old Redwood Hwy 6 Comment
  CAS-BOT-BC272113  Centaurea cyanus L. H. Huffins 1922-6-1 s.n. Sonoma Petaluma Comment
  CDA20599  Centaurea maculosa S. Ostrom 2005-10-2 PDR 1351698 Sonoma North Coast; Hwy 101 S center divide at College Ave exit. 0 Comment
  NY444437  Centaurea solstitialis L. Abrams 1916-7-4 5794 Sonoma Road between Petrified Forest and Mark West Comment
  RSA121125  Centaurea solstitialis H. S. Yates 1935-10-3 5341 Sonoma Santa Rosa 53 Comment
  CAS-BOT-BC277256  Centaurea solstitialis Robert M. King 1980-7-8 8416 Sonoma 5 miles generally Northeast of Santa Rosa Comment
  JEPS20838  Centaurium muehlenbergii Harry K. Roberts 1958-7-8 Sonoma 0.1 mi e junction of the Sebastopol and Occidental roads (and extending w toward Sebastopol for 1.2 mi on the lower half of the borrow pit on the s side of the Sebastopol-Santa Rosa highway) Comment
  POM287526  Centaurium trichanthum Lyman Benson 1930-6-18 2165 Sonoma Four miles south of Santa Rosa, North Coast Mt. Range, San Francisco Bay watershed. 61 Comment
  UCD166220  Centromadia pungens subsp. pungens Peter Rubtzoff 1970-5-30 6252 Sonoma 5 miles north of Sears Point. Comment
  JEPS86810  Cerastium arvense Jack and Betty Guggolz 1991-4-26 1119 Sonoma between Hwy. 1 and ocean just s. of s. end of Meyers Grade Rd. 182 Comment
  CAS-BOT-BC388433  Cerastium glomeratum D. E. Breedlove 1980-6-27 44746 Sonoma Pepperwood Ranch W of Knights Valley Comment
  RSA94648  Cerastium glomeratum Peter Rubtzoff 1952-3-23 902 Sonoma Southern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC400222  Ceratophyllum demersum Greg de Nevers 1991-8-8 9769 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In largest Double Pond 475 Comment
  UCD113023  Cercocarpus betuloides K. Evan 1932-8-28 s.n. Sonoma Near Petrified Forest. Comment
  CAS-BOT-BC135416  Cercocarpus betuloides var. betuloides G. De Nevers 1981-3-31 586 Sonoma Along Hansel's Creek, 100 m S of the Garrison Gate, Pepperwood Ranch Comment
  UCD160819  Chaenactis glabriuscula var. heterocarpha James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3434 Sonoma Section 10, ca. 1.5 miles west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  CAS-BOT-BC166674  Chenopodium Peter Rubtzoff 1973-8-20 7233 Sonoma Sonoma Creek bottom near Aqua Caliente Road crossing west of Agua Caliente. Comment
  RSA783838  Chenopodium Peter Rubtzoff 1971-7-23 6616 Sonoma Laguna, Chileno Valley. Comment
  RSA783839  Chenopodium Peter Rubtzoff 1971-7-23 6617 Sonoma Laguna, Chileno Valley. Comment
  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
  UC168633  Chenopodium botrys T. S. Brandegee July, 1885 Sonoma Cloverdale Comment
  CAS-BOT-BC499253  Chlorogalum pomeridianum Peter Rubtzoff 1961-10-18 4773 Sonoma Pitkin Marsh, near Forestville, western branch of the Upper Marsh Comment
  UCD138412  Chlorogalum pomeridianum var. divaricatum P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC257027  Chorizanthe membranacea Anna F. Rodda 1929-5-6 s.n. Sonoma Geyserville Comment
  CAS-BOT-BC257025  Chorizanthe membranacea G. DeNevers; F. Almeda 1982-5-8 2003 Sonoma Pepperwood Ranch. On a little knob on the N slope of the High Hill E of 3 Tree Hill Comment
  CAS-BOT-BC252849  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1918-5-1 6832 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC176384  Cichorium intybus Peter Rubtzoff 1966-8-25 5808 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCD130613  Cirsium douglasii var. douglasii P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar, near old orchard. 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
  SEINET11842966  Cirsium occidentale var. coulteri F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -197 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd, between Jimtown & Mercuryville 830 Comment
  CAS-BOT-BC285709  Cirsium occidentale var. occidentale Ella Dales Cantelow 1941-6-7 3555 Sonoma State Hy 1 w. of Bodega Comment
  CAS-BOT-BC280364  Cirsium occidentale var. venustum Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CDA1485  Cirsium occidentale var. venustum T. C. Fuller 1958-5-24 4004 Sonoma 1.5 mi. N of Camp Meeker. 0 Comment
  UCD130628  Cirsium quercetorum Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-24 58 Sonoma Unit 1 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC285752  Cirsium remotifolium John Thomas Howell 1937-7-4 13070 Sonoma Near Petrified Forest Comment
  CAS-BOT-BC285750  Cirsium remotifolium Alice Eastwood; John Thomas Howell 1938-7-6 6088 Sonoma Alder Glen Springs Comment
  UCD159440  Cirsium vulgare D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 197 Sonoma Roadside population along road leading to Bodega Marine Labs. Abundant. 7 Comment
  CAS-BOT-BC162556  Clarkia affinis Alva Day 1982-6-1 82 65 B Sonoma Pepperwood Ranch Comment
  CDA40774  Clarkia affinis S. Quick 1996-5-1 8 Sonoma Along Road 32, within 50 meters of the U.C. Reserve access road leading to Stebbins Cold Canyon Reserve. Comment
  CAS-BOT-BC161059  Clarkia amoena subsp. amoena C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  RSA458845  Clarkia amoena subsp. amoena Unspecified 1941-6-20 s.n. Sonoma Between Santa Rosa and Ukiah, Highway 101 Comment
  CAS-BOT-BC172203  Clarkia concinna Wayne Roderick 1967-6-18 s.n. Sonoma Mark West Springs Road, n.e. of Santa Rosa 60 Comment
  SEINET12195099  Clarkia concinna F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -254 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  UCSB4287  Clarkia concinna Robbins, G. 1936-6-4 Sonoma Bennett Valley Comment
  POM194539  Clarkia concinna subsp. concinna Y. Mexia 1929-6-2 2394 Sonoma Near Mark West Springs Comment
  RSA41289  Clarkia gracilis subsp. gracilis Robert F. Hoover 1941-5-14 5083 Sonoma 3 miles south of Monte Rio on road to Camp Meeker Comment
  CAS-BOT-BC163148  Clarkia gracilis subsp. sonomensis Alice Eastwood 1915-6-5 4592 Sonoma Petrified Forest Comment
  CAS-BOT-BC163138  Clarkia gracilis subsp. sonomensis C. L. Hitchcock 1928-6-7 17 Sonoma One-half mile east of Glen Ellen 30 Comment
  JEPS79261  Clarkia imbricata L. R. Heckard 1980-7-4 5405 Sonoma ca. 2 mi ne Graton (at 4851 Vine Hill Road (Schwartz property)) Comment
  SEINET12194279  Clarkia purpurea F. H. Utech 1986-1 86 -099 Sonoma ca 1.5 mi NE on Cavedale Road from junction with CA 12 100 Comment
  CAS-BOT-BC163469  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1939-6-11 7415 Sonoma Near [Triniti] Trinity P.O., Hoot Mt. Range Comment
  CAS-BOT-BC164585  Clarkia purpurea subsp. viminea Barbara Dows 1907-7-12 s.n. Sonoma Sebastopol 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
  JEPS43596  Clarkia unguiculata E. Ferguson 1919-6-11 228 Sonoma near Guerneville Comment
  UCD105033  Clarkia unguiculata Frederica Bowcutt 1994-6-12 1868 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail above Adobe Canyon Road (road visible from trail.) Less than 1/8 mile SW of trail juncture with Pony Gate Gulch Creek. 326 Comment
  CDA5445  Claytonia exigua D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .287 Sonoma Cavedale Rd. Comment
  CAS-BOT-BC439317  Claytonia exigua subsp. exigua Roxana S. Ferris 1962-4-14 13585 Sonoma Ca. 1/8 mi. beyond County dump Comment
  JEPS28104  Claytonia exigua subsp. exigua Roxana S. Ferris 1962-4-14 13585 Sonoma ca .12 mi beyond Sonoma County dump Comment
  RSA6471  Claytonia exigua subsp. exigua Jens Clausen 1933-3-26 745 Sonoma Harrison Grade, betwen Grtaon and Occidental. In orchard, gravelly soil. Comment
  CAS-BOT-BC439409  Claytonia gypsophiloides R. Bacigalupi 1948-3-6 2855 Sonoma 2 mi. w. of Skaggs Springs Comment
  UC1299362  Claytonia gypsophiloides Freed W. Hoffman 1947-2-25 616 Sonoma near Guerneville (on Del Preti Hill, headwaters of Fife Creek); North Coast Ranges, Del Preti Hill, Fife Creek Comment
  CAS-BOT-BC439411  Claytonia gypsophiloides Arthur Menzies 1966-3-27 s.n. Sonoma Between The Geysers and Mercuryville Comment
  RSA712417  Claytonia gypsophiloides K. L. Chambers 1977-3-29 4252 Sonoma Cloverdale to Booneville rd. (Hwy. 128) 3.7 mi. NW of junction with Hwy. 101 near Cloverdale. Gravelly serpentine roadbank. Comment
  CAS-BOT-BC443681  Claytonia perfoliata subsp. perfoliata John Thomas Howell 1931-4-2 6040 Sonoma Kenwood Comment
  RSA135361  Clematis ligusticifolia Volney Rattan 1877-6-21 s.n. Sonoma Santa Rosa Comment
  RSA534574  Clematis ligusticifolia Peter Rubtzoff 1962-9-16 5087 Sonoma Vacation Beach, 1.5 miles below Guerneville, along Russian River Comment
  UC1084477  Clematis ligusticifolia G. Thomas Robbins 1937-6-18 246 Sonoma Santa Rosa, Santa Rosa Creek Comment
  UCD35658  Clinopodium douglasii Beecher Crampton 1959-6-16 5395 Sonoma 1 mile northeast of Freestone. Comment
  CAS-BOT-BC499955  Clintonia andrewsiana George Syme 1917-4-25 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC499957  Clintonia andrewsiana Rimo Bacigalupi 1926-5-8 1393 Sonoma Cazadero Comment
  UC55255  Clintonia andrewsiana Milo S. Baker 1899-5-1 Sonoma Green Valley near Gallager's; Green Valley Comment
  JEPS3574  Collinsia greenei Helen K. Sharsmith 1952-6-18 4130 Sonoma about 0.8 mi w junction of Socrates Mine Rd. with Pine Flat-Middletown road; Mayacamas Mountains 914 Comment
  JEPS21814  Collinsia sparsiflora var. arvensis Alvin W. Urquhart 1958-4-13 21 Sonoma 2 mi e Glenn Ellen (Sonoma Mt. rd) 304 Comment
  UC457176  Collinsia sparsiflora var. arvensis David D. Keck 1931-4-2 999 Sonoma Boyes Springs 30 Comment
  JEPS128185  Collinsia sparsiflora var. sparsiflora Roger Raiche 2000-4-8 032 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC76211  Collinsia sparsiflora var. sparsiflora Milo S. Baker 1898-4-6 Sonoma Between Gualala R. and Skaggs Springs Gualala River Comment
  JEPS7308  Collinsia tinctoria Milo S. Baker 1904-6-19 Sonoma Sonoma Cr. Canyon Comment
  JEPS117066  Collinsia tinctoria Peter Warner 2007-5-12 85 Sonoma Mayacamas Audubon Sanctuary, Pine Flat Road, E of Geyserville; approx. 1/2 km SE of 7-Up (Rebizzo) Ranch, upslope (east) from road on large volcanic outcropping. 457 Comment
  CDA5447  Collomia heterophylla D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .286 Sonoma Cavedale Rd. Comment
  RSA223347  Convolvulus arvensis Peter Rubtzoff 1954-7-5 1540 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC288918  Conyza canadensis Catherine Best 1983-10-12 909 Sonoma At the edge of the Bodega Highway, 2 miles W of Freestone Comment
  CAS-BOT-BC371465  Cordylanthus Greg de Nevers 1989-11-2 9118 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Top of Telegraph Hill. 400 Comment
  SEINET13679568  Cordylanthus pallescens M. J. Williams, Wayne Roderick 1978-7-16 78- 228 -4 Sonoma Near Occidental. Comment
  JEPS68360  Cordylanthus pilosus subsp. pilosus L. R. Heckard with R. Bacigalupi and B. Doren 1971-9-11 2802 Sonoma 1/2 mi w on Lytton Springs road (about 2 mi n of Healdsburg) Comment
  UC1239013  Cordylanthus pringlei Freed W. Hoffman 1946-9-26 582 Sonoma Layton Mine, Austin Creek Layton Mine Comment
  CAS-BOT-BC238233  Cordylanthus tenuis subsp. capillaris R. F. Hoover 1965-6-29 9472 Sonoma North of summit on Harrison Grade road near Occidental Comment
  RSA74323  Cordylanthus tenuis subsp. capillaris Milo S. Baker 1947-7-15 11866 Sonoma 2 miles NE of Occidental, along Harrison Grade Comment
  SD133719  Cordylanthus tenuis subsp. capillaris T. I. Chuang, Fei-Mei Chuang 1970-7-25 6834 Sonoma Stoetz Road, west of harrison grade, 2.7 miles east of Occidental Comment
  UCD123134  Cordylanthus tenuis subsp. capillaris D. Sanchez-Mata; P. Rodriguez-Rojo 1997-8-9 s.n. Sonoma Camp Meeker-Monte Rio. Dutch Bill Creek. 800 Comment
  CAS-BOT-BC368072  Coreopsis grandiflora Greg de Nevers 1998-6-9 11273 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Valley Rd., at mouth of John Kuffenotchi's driveway. 400 Comment
  UCR255684  Cornus glabrata Greg de Nevers 1998-4-27 11196 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 197 Comment
  RSA0045166  Cornus nuttallii Greg de Nevers 1993-4-27 10414 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. Along Franz Creek east of 3865 Franz Valley Rd. 91 Comment
  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
  CAS-BOT-BC427643  Crassula aquatica H. K. Wagnon 1989-5-23 1956 Sonoma Spring Lake Park and environs. Adjacent to Montgomery Drive. Adjacent to Spring Creek diversion channel 67 Comment
  CAS-BOT-BC427650  Crassula aquatica Peter Rubtzoff 1958-4-26 3599 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC427652  Crassula aquatica Peter Rubtzoff 1974-5-11 7386 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road. Comment
  CAS-BOT-BC427918  Crassula connata Catherine Best 1987-3-28 1238 Sonoma Bodega Head Comment
  CAS-BOT-BC143505  Crataegus gaylussacia Peter Rubtzoff 1958-5-4 3628 Sonoma Forestville Marsh Comment
  CAS-BOT-BC143507  Crataegus gaylussacia Peter Rubtzoff 1959-5-30 4062 Sonoma Freestone Marsh Comment
  CAS-BOT-BC290542  Crepis capillaris Robert M. King 1980-7-8 8410 Sonoma Vicinity of Bodega Bay Comment
  UCD116522  Crocanthemum scoparium Frederica Bowcutt 1994-6-25 1917 Sonoma 609 Comment
  SEINET6631294 Image available Croton setiger Gladys L. Smith 1961-1 1454 Sonoma Geysers, near P.G. and E. power house 823 Comment
  CDA37890  Crupina vulgaris CDFA Staff 1991-1 s.n. Sonoma 0 Comment
  CDA4462  Crupina vulgaris G. D. Barbe 1991-5-24 4422 Sonoma Inside western boundary of Annadel State Park, Santa Rosa. Comment
  CAS-BOT-BC190109  Crypsis schoenoides G. DeNevers 1981-9-5 1806 Sonoma Pepperwood Ranch. In creek bed north of the aluminum gate dividing Pepperwood and Pippindale. Comment
  CAS-BOT-BC190150  Crypsis schoenoides Peter Rubtzoff 1962-9-16 5085 Sonoma Vacation Beach, 2 miles below Guerneville. On Russian River bottom. Comment
  RSA227233  Crypsis schoenoides Peter Rubtzoff 1963-9-21 5269 Sonoma Laguna de Santa Rosa east of Graton. Comment
  UCD60004  Crypsis vaginiflora Peter Rubtzoff 1971-8-9 6631 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC376222  Cryptantha Greg de Nevers 1993-3-28 10336 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. Shriver Canyon 304 Comment
  UCD119057  Cryptantha ambigua Collector unknown 1932-7-7 s.n. Sonoma Calistoga, near Petrified Forest. Comment
  UC336281  Cryptantha flaccida Hy. Edwards May 1877 331 Sonoma Knights Valley Comment
  POM64218  Cryptantha leiocarpa A. A. Heller 1902-5-27 5615 Sonoma Bodega Bay Comment
  UCD110844  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Sonoma Hooker Canyon. 590 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-BC80799  Cupressus macrocarpa John H. Thomas 1976-6-15 18283 Sonoma Southern end of Sea Ranch, northwestern part of country, about 7 miles south of Gualala. Coastal bluffs. 30 Comment
  CAS-BOT-BC85467  Cupressus sargentii J. Clausen 1933-3-26 749 Sonoma Summit of Harrison Grade; on serpentine rock and gravel. Between Graton and Occidental Comment
  SEINET3840824  Cupressus sargentii Unknown 2006-6-24 6 .323 Sonoma On serpentine along Harrison Grade 168 Comment
  UCR128480  Cupressus sargentii L. S. Rose 1955-7-11 55113 Sonoma 2 miles east of Occidental 244 Comment
  SEINET11739563  Cupressus sargentii F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -241 Sonoma end of Stoetz Road 200 Comment
  CHSC22662  Cuscuta salina var. major Robert A. Schlising; G. Keator 1963-7-27 2629 Sonoma California Coast Ranges. Near entrance to Bodega Head, east side of Bodega Peninsula. Comment
  CAS-BOT-BC190343  Cynodon dactylon Peter Rubtzoff 1951-7-21 504 Sonoma Pitkin Marsh near Forestville. Between the Upper and the Lower marshes. Comment
  CAS-BOT-BC190350  Cynodon dactylon Peter Rubtzoff 1956-9-14 2859 Sonoma Vacation Beach, near Guerneville. On Russian River bottom. Comment
  UCR248761  Cynodon dactylon Peter Rubtzoff 1971-8-23 6658 Sonoma Meacham Road, 0.35 miles south of Stony Point Road 75 Comment
  UCR248769  Cynodon transvaalensis Peter Rubtzoff 1970-9-13 6385 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville) 13 Comment
  CAS-BOT-BC190429  Cynosurus echinatus Catherine Best 1984-6-11 s.n. Sonoma At Goat Rock Park. Comment
  UC1011015  Cynosurus echinatus Virginia Bufford 1936-5-1 154 Sonoma head of Bodega Canyon Comment
  UCD161845  Cyperus eragrostis James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 s.n. Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  UCD141039  Cyperus eragrostis Mary M. Hektner 1974-9-12 184 Sonoma along Sea Gate Road, Unit 7 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC114435  Cyperus erythrorhizos Peter Rubtzoff 1958-9-20 3992 Sonoma Laguna de Santa Rosa NE of Graton. 1.5 mi N of Guerneville Road. Comment
  CAS-BOT-BC114437  Cyperus erythrorhizos Peter Rubtzoff 1959-8-30 4241 Sonoma Drake's Beach, near Guerneville. Open, wet gravelly margin of Russian River. Comment
  CAS-BOT-BC114341  Cyperus esculentus Peter Rubtzoff 1987-9-27 9858 Sonoma Russian River at Forest Hills, ca. 6 mi E of Guerneville. Comment
  CAS-BOT-BC70722  Cystopteris fragilis Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  UCD105674  Cytisus scoparius Kamala Crompton 1996-5-19 17 Sonoma Roadside 7 miles west of Petaluma. 100 Comment
  POM204594  Dactylis glomerata A. A. Heller 1902-6-7 5657 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  CAS-BOT-BC189847  Dactylis glomerata Mary P. Wells 1982-8-21 137 Sonoma Salt Point State Park. Comment
  CAS-BOT-BC445554  Damasonium californicum Peter Rubtzoff 1965-6-20 5559 Sonoma Petaluma Creek 4 mi. northwest of Petaluma (on Stony Point Rd). Comment
  CAS-BOT-BC445560  Damasonium californicum J. W. Congdon 1880-5-16 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC445562  Damasonium californicum John Thomas Howell 1937-6-6 13012 Sonoma Sebastopol Comment
  CAS-BOT-BC192271  Danthonia californica Alice Eastwood 1921-4-24 10358 Sonoma Santa Rosa Comment
  UCD60982  Danthonia californica Mary M. Hektner; Cathy Hendel and Sue Dakuzaku 1974-6-21 43 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Hwy. 1. Comment
  UCD60989  Danthonia californica Beecher Crampton 1966-5-10 7724 Sonoma 6.5 miles north of Sonoma State Hwy. 12. Comment
  UCD60460  Danthonia californica David L. Morgan 1956-5-17 s.n. Sonoma On Watmaugh Rd., 1/2 mile W of the junction of Arnold Dr. Comment
  UCD60499  Danthonia californica R. Tofsrud 1947-6-16 s.n. Sonoma 1 mi. N. of Valley Ford. Comment
  CHSC100548  Danthonia californica var. americana Beecher Crampton 1965-5-13 7339 Sonoma Ca. 8.5 miles SE of Geyserville, south end of Alexander Valley, jct. of Calistoga (Hwy 128) and Chalk Hill Roads. Comment
  UCD32895  Danthonia californica var. americana Beecher Crampton 1965-5-13 7339 Sonoma Sonoma County, ca. 8.5 miles S.E. of Geyserville, south end of Alexander Valley, jct. of Calistoga (hwy. 128) and Chalk Hill roads. Comment
  UCD36533  Danthonia californica var. americana Beecher Crampton 1954-4-26 1789 Sonoma Sonoma County, 9 miles southeast of Geyserville, along Highway 128, 0.5 mile north of Calistoga Road cutoff, on slope facing Alexander Valley. Comment
  UCD60998  Danthonia californica var. americana P. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar. Comment
  SJSU710  Daucus carota A. W. Jacobs 1941-7-25 Sonoma W bank Russian R near Hilton Comment
  POM133425  Daucus pusillus A. A. Heller, H. E. Brown 1902-5-27 5610 Sonoma Bodega Bay Comment
  UCD127412  Daucus pusillus Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-7-6 129 Sonoma Unit 35A Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC727734 Image available Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Val., West of Occidental on Hedrin Ranch Comment
  LA38290  Delphinium hesperium Lewis; Epling, Stebbins 515 Sonoma Bodega Bay, 1 mi. E of ocean Comment
  UC118585  Delphinium hesperium subsp. hesperium Michener and Bioletti 1892-5-30 932 a Sonoma Hood's Peak Comment
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Jun 5 2007
  UC1299394  Delphinium hesperium subsp. hesperium Freed W. Hoffman 1950-4-27 3475 Sonoma near Hacienda (Roy Litton Ranch); North Coast Ranges 304 Comment
  LA207535  Delphinium luteum Joseph Andorfer Ewan; 1935-5-12 9229 Sonoma 1.5 m. W of Bodega, Bodega Bay rd Comment
  CAS-BOT-BC9900  Delphinium nudicaule Herbert L. Mason 1928-4-8 4287 Sonoma Two miles north of Fort Ross Comment
  CAS-BOT-BC8011  Delphinium nudicaule Margot Lowry 1983-5-1 44 Sonoma One mile from top of Sonoma Mtn. Road, Sonoma Mountain 500 Comment
  CAS-BOT-BC8013  Delphinium nudicaule F. Krauss 1895-5-6 s.n. Sonoma near Franza Valley Comment
  RSA304847  Delphinium nudicaule James R. Shevock 1971-3-21 814 Sonoma Near Sugarloaf St Park 152 Comment
  UC118589  Delphinium variegatum F. T. Bioletti Sonoma Hood Mountain Comment
  RSA59844  Delphinium variegatum subsp. variegatum J. Ewan 1935-5-12 9240 Sonoma Los Guilicos, 2 miles N of Kenwood. Comment
  JEPS128274  Dendromecon rigida Roger Raiche 2000-4-23 047 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD95184  Dendromecon rigida K. Esau; E. Hyde 1938-5-25 s.n. Sonoma Mt. St. Helena. Comment
  CAS-BOT-BC585  Dendromecon rigida subsp. rigida Roxana Stinchfield Ferris; Laura Lorraine 1961-6-15 13558 Sonoma Green Valley Rd, 0.8 miles east of junction with Harrison Grade Rd. Comment
  UCD61230  Deschampsia cespitosa R. Tofsrud 1948-6-1 Sonoma By Mark West School. Comment
  CAS-BOT-BC192606  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1951-6-2 95 Sonoma Western branch of the Upper Marsh Comment
  UCD63790  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1916-7-17 Sonoma Del Mar. Comment
  CAS-BOT-BC201955  Deschampsia elongata Peter Rubtzoff 1959-6-6 4099 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC201957  Deschampsia elongata K. Wagnon 1939-5-14 198 Sonoma Along lane running through lower part of Wagnon Ranch, 5 miles west of Sebastopol Comment
  CAS-BOT-BC201963  Deschampsia elongata Peter Rubtzoff 1960-6-7 4461 Sonoma Austin Creek Marsh Comment
  RSA785843  Deschampsia elongata Peter Rubtzoff 1971-6-25 6560 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing. Comment
  UCD63734  Deschampsia elongata P. B. Kennedy 1916-7-17 Sonoma Del Mar. Comment
  CAS-BOT-BC209247  Dichanthelium acuminatum subsp. acuminatum R. D. Stone; G. Clifton 1983-6-16 553 Sonoma Little Geysers, upper Big Sulphur Creek drainage. 701 Comment
  CAS-BOT-BC254479  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1945-7-18 21322 Sonoma Pitkin Marsh Comment
  UC1198177  Dichelostemma capitatum Joseph P. Tracy 1933-5-1 12125 Sonoma Knights Valley 152 Comment
  UCD166874  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2016-3-26 3042 Sonoma Mayacamas Mountains, along Pine Flat Road, at Rob Roy Flat. 618 Comment
  UCD55137  Dichelostemma congestum Ellen Dean; Tammie Beyerl 2006-4-28 3019 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 179 Comment
  SBBG30007  Dichondra donelliana A. A. Beetle 1940-4-7 2598 Sonoma 5 mi N of Jenner Comment
  CAS-BOT-BC183609  Digitaria Peter Rubtzoff 1971-8-23 6656 Sonoma Meacham Road, 0.35 mi. S of Stony Point Road. Comment
  CAS-BOT-BC183611  Digitaria Peter Rubtzoff 1971-8-23 6645 Sonoma Stony Point Road, just S of Hwy. 116. Comment
  UC1011018  Digitaria sanguinalis Virginia Bufford 1935-10-13 83 Sonoma Santa Rosa Comment
  UCD148387  Digitaria sanguinalis Peter Rubtzoff 1956-9-14 2857 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UC429269  Disporum hookeri Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  UCD64448  Distichlis spicata Collector Unknown Fall 1941 147 Sonoma Few miles above Tolay Creek bridge, off Black Point Road. Comment
  UC22415  Dodecatheon hendersonii J. Burtt Davy 1896-3-15 1672 Sonoma near Fort Ross; near Fort Ross Comment
  UC483301  Dodecatheon hendersonii Ira L. Wiggins 1932-3-12 5759 Sonoma between Knight's Valley and Franz Valley; between Knight's Valley and Franz Valley Comment
  UCD150850  Downingia concolor var. concolor 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
  RSA181927  Downingia concolor var. concolor John Weiler 1960-4-22 60101 Sonoma State Hwy 12; 1.7 miles N of the turn to the Sonoma State Home or 3.0 miles N of Agua Caliente. Comment
  CAS-BOT-BC154161  Downingia pusilla Peter Rubtzoff 1972-4-23 6728 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  UC1188754  Downingia pusilla John Weiler 1960-4-9 6035 Sonoma 4.4 mi n Sears Point (along State Highway 37) Comment
  CAS-BOT-BC159448  Drymocallis glandulosa var. glandulosa A. A. Heller 1903-4-25 6598 Sonoma Fort Ross Comment
  RSA123329  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3755 Sonoma Near Bodega. 61 Comment
  CAS-BOT-BC71016  Dryopteris arguta J. W. Congdon 1880-1-11 s.n. Sonoma Petaluma Comment
  UC1193406  Dryopteris arguta P. Zinke 1950-4-25 115 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  CAS-BOT-BC277741  Dryopteris arguta Mona Bourell; Alva Day; George Lindsey 1986-6-26 1813 Sonoma CAS Pepperwood Ranch. 6 miles east of Santa Rosa 365 Comment
  POM188329  Dryopteris arguta Marcus E. Jones 1931-7-5 29172 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC71075  Dryopteris expansa J. Burtt Davy 1896-3-13 s.n. Sonoma near Duncan's Mill Comment
  CAS-BOT-BC376432  Elatine Greg de Nevers 1996-5-30 10838 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In the side canyon between Leslie Creek and Dentist's Lake. 400 Comment
  CAS-BOT-BC257690  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7880 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  UCD164997  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7881 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  UC1814  Eleocharis macrostachya F. T. Bioletti 1893-6-5 Sonoma Los Guilucos Valley Comment
  CAS-BOT-BC112071  Eleocharis quinqueflora Peter Rubtzoff 1951-8-5 596 Sonoma Pitkin Marsh, near Forestville: Lower part of the Upper Marsh. Comment
  CAS-BOT-BC112208  Eleocharis radicans Milo S. Baker 1939-6-1 9486 Sonoma Brookside Garden Comment
  CAS-BOT-BC451543  Elodea canadensis Peter Rubtzoff 1987-9-27 9860 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville. Comment
  OBI35896  Elymus elymoides David J. Keil 1983-6-30 17211 Sonoma Stillwater Cove Regional Park Comment
  SEINET11690147  Elymus glaucus J. T. Howell, Knight, W.; Knight, I. 1987-1 6229 Sonoma Todd Road Preserve 24 Comment
  UCD62299  Elymus glaucus R. Tofsrud 1941-5-1 52 Sonoma Mc Donald Reservoir. Comment
  CAS-BOT-BC203716  Elymus glaucus subsp. glaucus Greg de Nevers 1990-5-16 9669 A Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. North of the big rocks near the Red Corral 457 Comment
  UCD160893  Elymus glaucus subsp. virescens James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3286 a Sonoma Mayacmas Mountains, adjacent to Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottlerock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  CAS-BOT-BC235230  Elymus multisetus G. DeNevers 1981-7-1 1723 Sonoma Pepperwood Ranch. On the slope W of the Goat Pen in the Garrison Canyon Comment
  CAS-BOT-BC235232  Elymus multisetus G. DeNevers 1981-5-30 1415 Sonoma Pepperwood Ranch. In Bertoli's Creek Comment
  RSA155530  Epilobium ciliatum subsp. ciliatum L. S. Rose 1960-9-14 60096 Sonoma Laguna de Santa Rosa, 4 miles NE of Graton 15 Comment
  RSA37537  Epilobium ciliatum subsp. ciliatum Milo S. Baker 1932-9-18 6060 Sonoma Kenwood, Steven s Ranch Comment
  RSA800035  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1954-8-11 1693 Sonoma Guerneville Marsh. Comment
  UC1042501  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1951-8-4 585 Sonoma marsy opening s Upper Marsh (near Forestville); Pitkin Marsh Comment
  UCD105928  Epilobium ciliatum subsp. watsonii Frederica Bowcutt 1984-6-23 434 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg. North of Gerstle Cove approx. 1/4 mile. W of Highway 1. 15 Comment
  RSA800631  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-8-10 1681 Sonoma Bodega Head Marsh Comment
  UC909712  Epilobium densiflorum Milo S. Baker July 1950 12305 Sonoma along old r.r. right-of-way about 1 1/2 mi nw Kenwood (along Lawndale Rd) Comment
  UCD160972  Epilobium densiflorum James A. Neilson Jr. 1975-7-8 3407 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  UCD55338  Epilobium densiflorum Ellen Dean 2006-6-28 3182 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-BC262789  Epilobium hallianum Peter Rubtzoff 1958-5-10 3634 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road crossing. Comment
  UCD148324  Epilobium torreyi Peter Rubtzoff 1954-7-27 1578 Sonoma Guerneville Marsh. Comment
  JEPS128318  Epipactis gigantea Roger Raiche 2000-5-28 121 .00 Sonoma The Cedars, (shown on SLT maps as Marshall Creek but this is not the name on USGS topo sheets). Gualala River, Wheatfield Fork watershed. Comment
  RSA790976  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC57129  Equisetum X ferrissii Peter Rubtzoff 1951-6-10 191 Sonoma Northern half of Lower Marsh Comment
  UC371111  Equisetum X ferrissii Miss M. Alice King 1897-1 Sonoma Comment
  UCD148435  Equisetum X ferrissii Peter Rubtzoff 1962-5-25 4840 Sonoma Laguna de Santa Rosa area, northeast of Graton, east of Laguna Road. Comment
  CAS-BOT-BC57046  Equisetum arvense Peter Rubtzoff 1962-4-18 4800 Sonoma Laguna de Santa Rosa area northeast of Graton, east of Laguna Road Comment
  CAS-BOT-BC57038  Equisetum arvense Peter Rubtzoff 1954-8-13 1705 Sonoma Bodega Head Marsh Comment
  UC1010445  Equisetum arvense Milo S. Baker 1939-4-2 9268 Sonoma stream in front of Mrs. Morton's place Kenwood Comment
  CAS-BOT-BC57211  Equisetum hyemale subsp. affine John Thomas Howell 1931-9-26 8088 Sonoma Creek bottom at Northwood near Monte Rio on the Russian River Comment
  RSA785850  Equisetum hyemale var. affine Peter Rubtzoff 1961-10-23 4785 Sonoma Laguna de Santa Rosa area NE of Graton. Comment
  CAS-BOT-BC173612  Equisetum laevigatum Peter Rubtzoff 1958-4-26 3602 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC57641  Equisetum telmateia Mary P. Wells 1983-8-3 s.n. Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch Comment
  JEPS79542  Equisetum telmateia subsp. braunii Edward Lee with W. A. Setchell 1936-6-7 2174 Sonoma Trail No. 10 Bohemian Grove Comment
  UC810265  Equisetum telmateia subsp. braunii Koch 1940-4-16 9543 Sonoma Hwy between Salmon Creek and Wright's Beach (Hwy. 1) Comment
  UC810419  Equisetum telmateia subsp. braunii L. Koch 1938-5-24 58 Sonoma 2 mi e Glen Ellen (canyon off Rutherford Rd.) Comment
  UCD135599  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
  UCD135713  Equisetum telmateia subsp. braunii G. F. Hrusa 1995-4-2 12042 Sonoma Franz Valley Rd., approx. 3 m. W of Knights Valley interection with Hwy. 128. 150 Comment
  RSA0023078  Eragrostis hypnoides Peter Rubtzoff 1965-8-16 5599 Sonoma Russian River bottom at Forest Hills, 5.5 mi E of Guerneville. Comment
  CAS-BOT-BC204643  Eragrostis mexicana subsp. virescens G. DeNevers 1981-7-31 1776 Sonoma Pepperwood Ranch. At Cresta Stable Comment
  CAS-BOT-BC284188  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1958-8-30 s.n. Sonoma Vacation Beach near Guerneville, Russian River Comment
  RSA0062824  Ericameria arborescens Greg de Nevers 1989-9-5 9100 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  RSA149838  Ericameria ericoides var. ericoides George W. Barclay 1839-10 3037 Sonoma Bodegas Comment
  UC31486  Erigeron glaucus Harley P. Chandler 1900-5-25 690 Sonoma Bodega Bay Comment
  UC1192210  Erigeron greenei Verne Grant, Herbert L. Mason 1946-7-5 12898 Sonoma 2 mi east of Occidental Comment
  CAS-BOT-BC214551  Erigeron philadelphicus Peter Rubtzoff 1951-6-9 185 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC368066  Erigeron philadelphicus Greg de Nevers 1998-5-26 11264 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Franz Creek 400 Comment
  HSC101101  Erigeron serpentinus Peter Warner 2011-8-12 230 Sonoma Jenner Headlands property, Jenner Pasture, about 400 m E 115 deg. S fr. cottage, corrals 173 Comment
  CAS-BOT-BC300304  Erigeron supplex Mary P. Wells 1984-6-8 338 Sonoma Site of North Fire station area. Near Milepost 55.44 on Hwy. 1. The Sea Ranch Comment
  CAS-BOT-BC224153  Eriodictyon californicum Walter Knight; Irja Knight 1963-12-27 469 Sonoma Summit, Pine Flat Rd. Comment
  SEINET12329981  Eriodictyon californicum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -239 Sonoma end of Stoetz Road 200 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-BC259261  Eriogonum latifolium Alice Eastwood 1915-6-29 4882 Sonoma Bodega Point Comment
  SD38697  Eriogonum latifolium Edith A. Purer 1932-7-16 4033 Sonoma Bodega Bay, sandy bluff Comment
  UCD100328  Eriogonum latifolium Frederica Bowcutt 1984-6-24 472 Sonoma Sonoma Coast State Beaches. Duncan's Landing. 4 miles S of Jenner and the mouth of Russian River. Approx. 7 miles N of Bodega Head. 12 Comment
  CAS-BOT-BC259471  Eriogonum luteolum John Thomas Howell 1932-9-18 10785 Sonoma Field bordering Sonoma Creek where it enters the level of Sonoma Valley Comment
  CAS-BOT-BC270975  Eriogonum nervulosum Roger Raiche 1984-6-23 43234 Sonoma The Cedars, N. of Cazadero on King Ridge Road, headwaters Big Austin and East Austin Creeks, near Red Slide, E. Augstin Creek 548 Comment
  CAS-BOT-BC261693  Eriogonum nudum var. nudum G. DeNevers 1981-6-27 1713 Sonoma Pepperwood Ranch. Road cut at summit of Franz Valley Road Comment
  CAS-BOT-BC261686  Eriogonum nudum var. nudum Walter Knight; Irja Knight 1963-9-1 132 Sonoma Sulphur Creek Rd, 1 mi from US 101, Cloverdale Comment
  POM165167  Eriogonum nudum var. nudum A. A. Heller 1902-7-8 5814 Sonoma Between Healdsburg and Geyserville Comment
  UC635014  Eriogonum nudum var. oblongifolium H. L. Mason 1928-7-10 4885 Sonoma Jenner Comment
  CAS-BOT-BC269749  Eriogonum nudum var. oblongifolium Peter Rubtzoff 1952-6-1 1133 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  SEINET6793133 Image available Eriogonum vimineum Sally Walker 1983-7-18 s.n. Sonoma 3 miles southwest of Occidental Comment
  SEINET11843923  Eriophyllum lanatum W. Knight, Knight, I.; Edwards, S. 1985-1 6318 Sonoma lower S slope of Bradford Mt 366 Comment
  HSC5595  Eriophyllum lanatum var. achilleoides R. Spellenberg 1964-6-15 403 Sonoma 5 mi. W of The Geysers on road from Geyserville Comment
  CAS-BOT-BC301158  Eriophyllum lanatum var. achilleoides Peter Rubtzoff 1952-6-1 1131 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  CDA4966  Eriophyllum lanatum var. achilleoides T. C. Fuller 1960-6-14 4487 Sonoma Italian Swiss Colony, Asti. 0 Comment
  SEINET11844594  Eriophyllum lanatum var. achilleoides F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -239 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CAS-BOT-BC301280  Eriophyllum lanatum var. arachnoideum J. Clausen 1935-5-24 1086 Sonoma 5.1 mi. S. of Jenner on the Bodega road Comment
  CAS-BOT-BC301282  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  UC1118237  Eriophyllum lanatum var. arachnoideum H. S. Yates 1934-4-21 3810 Sonoma near Bodega Port; Duncan Mills Quadrangle 7 Comment
  UC31670  Eriophyllum lanatum var. arachnoideum Harley P. Chandler 1900-5-25 694 Sonoma Bodega Bay Comment
  RSA655455  Eriophyllum staechadifolium Beecher Crampton 1955-6-17 2972 Sonoma State Hwy. 1, 4 miles south of Fort Ross Comment
  RSA44517  Erodium brachycarpum L. S. Rose 1949-4-6 49025 Sonoma Western outskirts of Sonoma. 30 Comment
  JEPS117128  Erodium moschatum Peter Warner 2010-3-29 124 Sonoma 1670 Bloomfield Road, approx. 3 km S of center Sebastopol, throughout property. Comment
  UCD150843  Eryngium aristulatum 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
  UC1307394  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1955-7-16 1962 Sonoma Bennett Mt. Lake Comment
  UC1487264  Eryngium aristulatum var. aristulatum Yusuf Sheikh and Peter Rubtzoff 1971-7-20 504 Sonoma n.w. Cotati (along Todd Rd.) Comment
  UCR224675  Eryngium aristulatum var. aristulatum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  POM259748  Eryngium aristulatum var. aristulatum J. T. Howell 1934-3-26 11806 Sonoma Summit of Bennet Valley road from Glen Ellen to Santa Rosa Comment
  POM259749  Eryngium aristulatum var. aristulatum Alice Eastwood, John Thomas Howell 1936-5-19 2510 Sonoma 2 miles north of Windsor Comment
  RSA290418  Eryngium aristulatum var. aristulatum Yusuf Sheikh, Peter Rubtzoff 1971-7-20 504 Sonoma Drying vernal pool along Todd Road, open country NW of Cotati Comment
  JEPS17450  Eryngium armatum W. L. Jepson 1921-6-3 9309 Sonoma s. Sonoma Co., Cotati Valley, Wilfred Sta. 27 Comment
  UC202767  Eryngium armatum A. D. E. Elmer July, 1903 4776 Sonoma Petaluma Comment
  UC1931037  Eryngium constancei G. F. Hrusa 1996-10-5 13582 A Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m SW of Calistoga. 700 Comment
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Jan 8 2013
  UC117685  Erysimum concinnum Alice Eastwood 1900-7-4 Sonoma Bodega Point Comment
  SEINET14196771  Erythranthe bicolor K. Brandegee 1905-6-8 s.n. Sonoma Between Santa Rosa and Sebastopol. Comment
  CAS-BOT-BC383154  Erythranthe guttata David B. Lowry 2005-5-10 OCC Sonoma East of Occidental at corner of Occidental Road and Facendini Lane 260 Comment
  SD77346  Erythranthe guttata F. W. Pennell, H. L. Mason 1940-5-21 25487 Sonoma Route 28, Knights Valley, along Maacona Creek, 12 mi. e. of Healdsburg, open stream 121 Comment
  UC3610  Erythronium californicum W. A. Setchell 1898-3-15 Sonoma Cloverdale Comment
  CAS-BOT-BC502683  Erythronium californicum Volney Rattan 1877-6-25 s. n. Sonoma near Cloverdale Comment
  UC70419  Erythronium californicum Milo S. Baker 1898-4-6 13 Sonoma Gualala River Comment
  RSA146385  Eschscholzia caespitosa subsp. caespitosa W. R. Ernst 1959-5-3 543 Sonoma About 1 mile southeast of Rionido Comment
  SEINET3355597 Image available Eschscholzia californica Katharine Brandegee 1905-1 Sonoma Comment
  UC1299665  Eschscholzia californica Freed W. Hoffman 1947-6-4 530 Sonoma Red Slide North Coast Ranges, East Austin Creek (headwaters of creek) Comment
  CAS-BOT-BC5891  Eschscholzia debilis Gwendolan Newell 1900-8-1 s.n. Sonoma Russian River Station Comment
  CAS-BOT-BC202773  Euonymus occidentalis H. L. Mason 1925-11-26 2497 Sonoma Near Monte Rio Comment
  UCD107426  Euonymus occidentalis Dan Axelrod 1931-7-10 s.n. Sonoma Ward Creek, 3 miles no. of Cazadero on Ft. Ross Road. Comment
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Feb 6 2013
  JEPS89214  Euonymus occidentalis var. occidentalis Volney Rattan 1877-6-14 Sonoma Guerneville Comment
  CAS-BOT-BC290687  Euphorbia Peter Rubtzoff 1987-10-17 9877 Sonoma Russian River ca. 6 miles east of Guerneville. Comment
  UCR275240  Euphorbia Peter Rubtzoff 1971-7-23 6610 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 70 Comment
  UCR255054  Euphorbia oblongata Greg de Nevers 1992-8-16 10244 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 305 Comment
  JEPS87228  Eurybia radulina Jack and Betty Guggolz 1992-7-25 1333 Sonoma 4+ mi WSW of, (rd-edge through brush field 5/8 mi ssw of Bradford Mtn) Geyserville; Bradford Mountain 292 Comment
  RSA0065155  Eurybia radulina Greg de Nevers 1997-8-17 11078 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. Oak Hill Ranch. 100 Comment
  RSA0025192  Euthamia occidentalis Peter Rubtzoff 1961-9-20 4748 Sonoma Americano Creek, 0.9 mi west of Bloomfield. Comment
  CAS-BOT-BC239724  Fabaceae Peter Rubtzoff 1970-5-16 6226 Sonoma 5 miles north of Sears Point Comment
  RSA0065935  Festuca Greg de Nevers 1989-04 9062 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. 100 Comment
  RSA0022447  Festuca Peter Rubtzoff 1974-5-25 7455 Sonoma Upper Green Valley Marsh. Comment
  CDA18016  Festuca arundinacea S. Parnay 1999-5-25 PDR 008538 Sonoma Glen Ellen. 0 Comment
  SDSU1110  Festuca californica D. F. Howe 1963-5-23 3528 Sonoma 3.8 miles north of Cloverdale on #128 335 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-BC283187  Festuca californica subsp. californica G. DeNevers 1981-6-6 1450 Sonoma Franz Valley Road, Pepperwood Ranch Comment
  RSA123473  Festuca californica var. californica H. S. Yates 1934-4-21 s.n. Sonoma Near Bodega Port 8 Comment
  RSA121316  Festuca idahoensis H. S. Yates 1937-5-30 6544 Sonoma 3 miles WNW of Graton. 61 Comment
  UCD151131  Festuca idahoensis James A. Neilson Jr. 1973-6-6 2976 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  UCD66175  Festuca occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-14 13534 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway. Comment
  OBI35900  Festuca perennis David J. Keil 1983-6-30 17214 Sonoma Stillwater Cove Regional Park Comment
  CAS-BOT-BC279079  Festuca rubra John Thomas Howell 1944-5-14 19485 Sonoma Between Petaluma and Chileno Valley Comment
  UCD66381  Festuca rubra Peter Rubtzoff 1951-6-7 113 Sonoma Pitkin Marsh, near Forestville. Western branch of the upper marsh. Comment
  RSA94608  Festuca rubra Peter Rubtzoff 1951-7-7 353 Sonoma Pitkin Marsh, near Forestville; Western branch of the upper marsh. Comment
  UC12228  Fragaria chiloensis Harley P. Chandler 1900-5-25 692 Sonoma Bodega Bay Comment
  CAS-BOT-BC457580  Fragaria vesca subsp. californica Volney Rattan 1877-6-27 s.n. Sonoma Cloverdale Comment
  CAS-BOT-BC457582  Fragaria vesca subsp. californica J. W. Congdon only April written on sheet s.n. Sonoma Santa Rosa Comment
  UCD112528  Frangula californica P. G. Connors 1991-6-25 176 Sonoma Bodega Head and Dunes. Comment
  CAS-BOT-BC53270  Frangula californica subsp. californica Walter Knight; Irja Knight 1964-11-15 772 Sonoma Hood's Peak, Meadow above Johnson Dam Comment
  CAS-BOT-BC53280  Frangula californica subsp. californica James McMurphy 1909-5-29 s.n. Sonoma Grade, ridge south of the Geysers Comment
  POM130974  Fraxinus latifolia W. A. Setchell 1897-6-16 s.n. Sonoma Western Middle California: Casadero [Cazadero]. Comment
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Dec 31 2015
  UC1299214  Fremontodendron californicum subsp. californicum Freed W. Hoffman 1948-6-16 2698 Sonoma North Coast Ranges, Red Slide, upper East Austin Creek East Austin Creek; North Coast Ranges, Red Slide, upper East Austin Creek Comment
  CAS-BOT-BC130177  Fritillaria affinis John Thomas Howell 1924-3-22 289 Sonoma Camp Meeker Comment
  RSA17443  Fritillaria affinis Elmer I. Applegate 1934-3-25 8861 Sonoma Pine Flat region, west slope of the Mayacama Range Comment
  RSA177936  Galium aparine Robert F. Thorne 1965-4-20 34333 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  LA208415  Galium californicum John Thomas Howell; 1930-6-8 5246 Sonoma 1 mi east of Bodega Bay Comment
  POM311187  Galium divaricatum Leo Koch 1940-6-12 1014 Sonoma In hills behind Fountaingrove Vineyard. 3 miles N of Santa Rosa along Hwy 101. Comment
  UC963917  Galium divaricatum Milo S. Baker 1947-5-12 11768 Sonoma along horse trail from Gray Ranch (sw slope of mt.); Hood Mt. 441 Comment
  SEINET12333743  Galium murale H. K. Wagnon 1989-1 1882 Sonoma Spring Lake Park & environs, adjacent to Montgomery Drive, edge of service road 67 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
  UCD39139  Galium parisiense Beecher Crampton 1964-8-18 7148 Sonoma N.E. part of county. 'The Geysers', Big Sulphur Creek. Comment
  SD123748  Galium parisiense J. C. Roos 1950-7-22 4875 Sonoma Sand bar along stream bed 2 miles east of Duncan Mills 60 Comment
  JEPS87246  Galium porrigens var. porrigens Jack and Betty Guggolz 1992-8-29 1346 Sonoma about 2 mi nnw Camp Meeker 146 Comment
  UC421566  Galium porrigens var. porrigens John Thomas Howell 1929-6-9 4297 Sonoma 2 mi n Sonoma Comment
  UC201104  Galium tricornutum Katharine Brandegee Sonoma Santa Rosa Comment
  RSA94357  Galium trifidum Peter Rubtzoff 1951-6-30 315 Sonoma Western branch of the Upper Marsh. Comment
  SJSU6050  Galium trifidum subsp. columbianum C. W. Sharsmith 1972-6-24 7798 Sonoma Forestville Marsh c. 0.5 mi E of Forestville & NW of Sebastopol Comment
  CAS-BOT-BC303500  Gamochaeta ustulata David D. Keck; J. Clausen 1935-6-15 3370 Sonoma 1 mile N of Salmon Creek, N of mouth of Salmon Creek, on bluff overlooking the ocean Comment
  CAS-BOT-BC303502  Gamochaeta ustulata Peter Rubtzoff 1951-6-30 303 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  HSC39063  Garrya fremontii Gary S. Lester 1974-2-9 66 Sonoma Along Trinity Rd. 549 Comment
  HSC8393  Garrya fremontii S. N. Wiemeyer 1962-1-28 5 Sonoma 3/4mi E of County Hospital along Chanate Rd. 213 Comment
  UC1122666  Garrya fremontii C. M. Belshaw 1936-3-8 1570 Sonoma Rincon Ridge Santa Rosa Quad. (1.5 mi ne of County Farm) 251 Comment
  SEINET12137589  Garrya fremontii W. Knight, Knight, I.; Edwards, S. 1986-1 5359 Sonoma along trail to summit of Geyser Peak, access from Healdsburg-Geysers Rd 869 Comment
  CAS-BOT-BC320559  Gastridium Peter Rubtzoff 1973-7-24 7196 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC278683  Gastridium phleoides G. DeNevers 1981-9-12 1843 Sonoma Pepperwood Ranch. On Mark West Creek, at confluence with Leslie Creek Comment
  UC665621  Gentiana affinis var. ovata Annetta Carter and Ethel Crum 1941-6-22 1638 Sonoma on steep ne-facing slope 3.3 mi e Bodega Bay; North Coast Ranges Comment
  CDA34813  Geranium dissectum Peter Warner 2010-3-29 178 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  SEINET7067224  Gilia capitata A. G. Vestal 1947-5-12 s.n. Sonoma About 1 mile east of Occidental on the Occidental Road. Coordinate datum: NAD27. Comment
  CDA40040  Gilia capitata subsp. capitata T. C. Fuller 1958-5-24 4019 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  JEPS30830  Gilia capitata subsp. chamissonis Rimo Bacigalupi and L. R. Heckard 1962-6-19 8586 Sonoma 1/4 mi se Horseshoe Cove (at northeastern base of low hills forming Bodega Head proper); ne base of low hills Bodega Head, se of Horseshoe Cove 12 Comment
  CAS-BOT-BC226168  Gilia capitata subsp. tomentosa Mrs. H. C. Cantelow 1941-6-7 s.n. Sonoma 3.2 miles north of Jenner on State highway 1 Comment
  POM179726  Gilia capitata subsp. tomentosa J. T. Howell 1930-6-8 5365 Sonoma 1 mile east of Bodega Bay Comment
  RSA0006670  Gilia pallida A. A. Heller 1902-6-23 11498 Sonoma Petrified Forest Comment
  RSA67105  Gilia tricolor Verne Grant, Alva Grant 1950-4-24 8873 Sonoma Between Santa Rosa and Calistoga Comment
  JEPS78761  Githopsis specularioides L. R. Heckard with Michael Morris 1976-4-26 4231 Sonoma n of Guerneville (along n side of Gilman Creek, near road running nw of Vista Point and Redwood Lake (ca 0.75 mi from there)); Armstrong Redwoods State Park, Gilman Creek 182 Comment
  SD88302  Glebionis segetum Darley F. Howe 1972-4-30 Sonoma Bodega Bay Comment
  UC1784202  Glebionis segetum Ethel Crum 1930-1 737 Sonoma Petaluma Comment
  SEINET10717792  Glyceria P. Rubtzoff, Arnaud, P. 1966-5-29 Rubtzoff 5739 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road crossing). Comment
  RSA177984  Glyceria declinata R. F. Thorne 1965-4-19 34293 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  UCD166088  Glyceria declinata Peter Rubtzoff 1971-6-26 6573 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC282728  Glyceria elata Peter Rubtzoff 1951-6-10 204 Sonoma South of the Upper Marsh, Pitkin Marsh near Forestville Comment
  HSC100882  Glyceria leptostachya Peter Warner 2011-8-18 232 Sonoma Pitkin Marsh, ~1.5 mi. SE of Forestville, lower marsh in channel, ~50 m S of N edge of parcel, below off-site water impoundment. 42 Comment
  CAS-BOT-BC166906  Gnaphalium chilense Peter Rubtzoff 1962-10-23 5125 Sonoma Laguna de Santa Rosa area northeast of Graton, east of Laguna Road. Comment
  CAS-BOT-BC176163  Gnaphalium chilense Peter Rubtzoff 1974-8-4 7796 Sonoma Upper Green Valley Marsh. Comment
  POM232045  Gnaphalium chilense Roxana S. Ferris 1937-8-18 9375 Sonoma Near mouth of Salmon Creek on Bodega Bay. Comment
  UCD131650  Gnaphalium palustre Frederica Bowcutt 1984-6-23 442 Sonoma Salt Point State Park. Approx. 20 miles north of Jenner and 80 miles south of Fort Bragg on the Sonoma County coast. North of Gerstle Cove CA. 1/2 mile. 15 Comment
  CAS-BOT-BC176134  Gnaphalium palustre Peter Rubtzoff 1951-9-3 740 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC302694  Gnaphalium palustre Peter Rubtzoff 1958-9-6 3984 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  RSA0004473  Godetia amoena var. sonomensis C. L. Hitchcock 1928-6-7 18 Sonoma 1/2 mile east of Glen Ellen. 30 Comment
  CAS-BOT-BC251226  Gratiola Peter Rubtzoff 1974-5-11 7387 Sonoma Todd Road, 1.4 miles from hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD166115  Gratiola Peter Rubtzoff 1972-5-25 6756 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC305171  Grindelia hirsutula Catherine Best 1982-8-18 s.n. Sonoma At Goat Rock Park Comment
  JEPS87229  Grindelia hirsutula Jack and Betty Guggolz 1992-8-29 1342 Sonoma two mi nnw Camp Meeker 195 Comment
  SBBG33298  Grindelia hirsutula J. P. Broughton 1969-7-13 1275 Sonoma salt marsh bordering Tomales Bay near Tubbs Island Comment
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Oct 1 2009
  UC473549  Grindelia hirsutula John Thomas Howell 1930-7-13 5338 Sonoma Black Point Road 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-BC305194  Grindelia hirsutula Milo S. Baker 1946-7-30 11542 Sonoma Eastern margin of Laguna. Upland. Along Occidental Rd. near bridge Comment
  SEINET10724137 Image available Grindelia hirsutula John Thomas Howell 1930-6-8 Howell 5221 Sonoma 8 miles west of Petaluma. Clay soil. Comment
  POM202659  Grindelia hirsutula var. davyi J. T. Howell 1932-10-9 10816 Sonoma 6 miles from Sonoma on road to Napa. Comment
  CAS-BOT-BC302254  Harmonia nutans J. Clausen 1935-5-23 1073 Sonoma Petrified Forest, near entrance 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-BC306325  Hedypnois cretica G. DeNevers 1981-5-26 1330 Sonoma Pepperwood Ranch. Garrison Canyon Comment
  CAS-BOT-BC306327  Hedypnois cretica F. Almeda; G. DeNevers 1981-4-28 4898 Sonoma Pepperwood Ranch. Vicinity of the Bechtel Cabin Comment
  CAS-BOT-BC306768  Helenium bigelovii Mary P. Wells 1984-8-8 431 Sonoma Deer Trail, The Sea Ranch Comment
  CAS-BOT-BC262951  Helenium puberulum Peter Rubtzoff 1968-7-20 5927 Sonoma Upper Salmon Creek Marsh. 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
  CAS-BOT-BC262983  Helenium puberulum Peter Rubtzoff 1954-8-4 1655 Sonoma North side of the Guerneville Marsh. Comment
  UCD164251  Helenium puberulum Peter Rubtzoff 1979-8-6 9303 Sonoma Knights Valley, off south side of Bavarian Lion Company ranch road (between it and a creek) 1.25 - 1.5 miles west of its junction with Franz Valley Road (0.4 miles south of Hwy. 128). Comment
  CAS-BOT-BC123602  Heliotropium oculatum Amos Arthur Heller 1902-7-8 5813 Sonoma Bank of Russian River at Healdsburg Comment
  CAS-BOT-BC258388  Hemizonia Peter Rubtzoff 1973-8-27 7260 Sonoma Upper Green Valley Marsh area. 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
  CAS-BOT-BC258027  Hemizonia Peter Rubtzoff 1970-8-5 6301 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC258395  Hemizonia Peter Rubtzoff 1974-5-18 7422 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC268071  Hemizonia Peter Rubtzoff 1972-6-29 6797 Sonoma Laguna, Chileno Valley. Comment
  RSA800069  Hemizonia Peter Rubtzoff 1973-9-9 7306 Sonoma Kenwood Marsh. Comment
  UCD166204  Hemizonia Peter Rubtzoff 1969-8-26 6161 Sonoma Laguna de Santa Rosa, northeast of Graton, at end of Piner Road. Comment
  UC89028  Hemizonia congesta Mrs. K. Curran 1888-6-1 Sonoma Verano Comment
  RSA81625  Hemizonia congesta James I. McMurphy 1909-8-9 s.n. Sonoma 1 mile S of Sonoma. Comment
  CAS-BOT-BC306158  Hemizonia congesta subsp. clevelandii James I. McMurphy 1909-8-9 709 Sonoma One mile south of Sonoma Comment
  SD62041  Hemizonia congesta subsp. clevelandii Darley F. Howe 1965-8-3 Sonoma 4.4 miles west of Santa Rosa. Comment
  CAS-BOT-BC306241  Hemizonia congesta subsp. congesta J. W. Congdon 1880-8-2 s.n. Sonoma Petaluma & Santa Rosa Road Comment
  UC134571  Hemizonia congesta subsp. congesta Katharine Brandegee 1905-6-1 Sonoma between Santa Rosa and Sebastopol Comment
Read comments
Jun 26 2010
  UCD132980  Hemizonia congesta subsp. congesta Roxana S. Ferris; Laura Lorraine 1961-6-14 13546 Sonoma Junction of Occidental road with Facendini Lane. Comment
  CAS-BOT-BC306231  Hemizonia congesta subsp. congesta H. M. Hall 1931-5-26 13079 Sonoma Six miles northwest of Petaluma Comment
  CAS-BOT-BC309670  Hemizonia congesta subsp. lutescens L. R. Abrams 1907-8-1 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC309672  Hemizonia congesta subsp. lutescens A. A. Heller 1902-8-20 6054 Sonoma At Sebastopol Comment
  CAS-BOT-BC309724  Hemizonia congesta subsp. lutescens J. Clausen 1935-5-24 1085 Sonoma 5.1 miles south of Jenner, on the Bodega road Comment
  JEPS86755  Hemizonia congesta subsp. lutescens Jack and Betty Guggolz 1990-4-30 1038 Sonoma n side intersection of Occidental Road and Facindini Lane Comment
  UC197510  Hemizonia congesta subsp. lutescens H. M. Hall 1916-7-23 10243 Sonoma Field 7.5 mi nw of Petaluma Comment
  JEPS86758  Hemizonia congesta subsp. lutescens Jack and Betty Guggolz 1990-10-7 1098 Sonoma ne side of high ground e of Hwy 116 (and s of the n part of Gilchrist Road) 53 Comment
  UCD38976  Hemizonia congesta subsp. lutescens Beecher Crampton 1960-11-29 5809 Sonoma 4 miles southeast of Santa Rosa, Mantanzas Creek, 1/2 mile north of Benntett Valley Grange Hall. Comment
  CAS-BOT-BC309950  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-6-8 s.n. Sonoma Valley across hills from Petaluma Comment
  JEPS41000  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-8-26 64064 Sonoma 6.5 mi ne Penngrove 426 Comment
  JEPS86759  Hemizonia congesta subsp. luzulifolia Jack and Betty Guggolz 1990-9-9 1089 Sonoma in river bed between Cloverdale and Asti crossing; Russian River bed 79 Comment
  SD239596  Hemizonia congesta subsp. luzulifolia Ann Howald 2011-8-28 2804 Sonoma North Coast Ranges: west slope of Mayacamas Mountains, Los Alamos Rd. at Cougar Lane, 2.3 miles east of intersection Hwy 12. 328 Comment
  UC990612  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-29 Sonoma summit between Geyserville and The Geysers Comment
  CAS-BOT-BC309951  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-5-29 s.n. Sonoma Grade, ridge S. of Geysers Comment
  CDA20440  Hemizonia fitchii McArthur 2002-9-4 PDR P 092053 Sonoma Northern California; State park in the vicinity of Kenwood. 0 Comment
  RSA169313  Hemizonia lutescens L. S. Rose 1964-8-26 64067 Sonoma 5 miles NE of Penngrove. 244 Comment
  UCSB16906  Hemizonia multicaulis Dennis E. Breedlove 1961-12-31 1437 Sonoma collected 2.3 mi S, along State Highway 1 Russian River - , and State Highway 1 30 Comment
  UCR256284  Hesperevax sparsiflora Peter Rubtzoff 1974-5-26 7490 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  JEPS29497  Hesperevax sparsiflora var. sparsiflora W. L. Jepson 1921-6-3 9306 Sonoma s Santa Rosa (near Wilfred Station, in a flat in the Cotati Valley, on the Northwestern Pacific Ry); Cotati Valley 28 Comment
  UC581116  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-28 8082 Sonoma Jensen's Ranch; Dohrmann Creek Comment
  RSA151707  Hesperolinon clevelandii H. K. Sharsmith 1947-5-30 3966 Sonoma Southern slope of Hood Mountain, volcanic rock, altitude 800 feet, near Grant line. 244 Comment
  UC1212428  Hesperolinon micranthum Herbert L. Mason 1946-7-4 12895 Sonoma 2 mi e Occidental (on Harrison Grade); Inner North Coast Ranges Comment
  UC903740  Hesperolinon micranthum Milo S. Baker 1947-5-5 11728 Sonoma s slope of mountain above Baker Ranch; Inner North Coast Ranges, Hood Mt. 213 Comment
  JEPS122891  Hesperolinon spergulinum Adam C. Schneider with Will Freyman and Yuri P. Springer 2014-5-21 649 Sonoma Along Pine Flat Rd accessed from Alexander Valley Rd. off of Hwy 101 north of Healdsburg Comment
  UC1212386  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-17 4125 Sonoma ca 1 mi beyond origin of Pine Flat road in Alexander Valley (slopes of Saysal Creek canyon); Inner North Coast Ranges, Mayacamas Range, Saysal Creek 182 Comment
  UCD110532  Hesperolinon spergulinum Helen K. Sharsmith 1952-7-23 4168 Sonoma 1.1 mile northeast of Skagg's Springs. 106 Comment
  CAS-BOT-BC310985  Heterotheca grandiflora Freed Hoffman 1943-12-1 s.n. Sonoma Northwood, Russian River near Guerneville Comment
  CAS-BOT-BC251213  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC311074  Heterotheca oregona var. rudis Walter Knight; Irja Knight 1963-9-1 308 Sonoma 1 mi from US 101 on Sulphur Creek Rd - Cloverdale Comment
  UC858024  Heuchera micrantha var. erubescens Eliz. Parsons Hauver June 1915 Sonoma Skaggs Springs Comment
  CAS-BOT-BC423440  Heuchera micrantha var. hartwegii R. Bacegalupi 1926-5-2 1394 Sonoma Cazadero Comment
  RSA0063041  Heuchera pilosissima Herbert Thomas 1933-5-12 s.n. Sonoma Near Larkspur Rock. Comment
  SEINET12221839  Heuchera pilosissima F. H. Utech 1988-5-21 88 -221 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point 75 Comment
  CAS-BOT-BC319704  Hieracium albiflorum D. E. Breedlove 1980-6-28 44817 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA31348  Hieracium albiflorum D. G. Kelch, Ed Biffin 2010-5-3 10 .196 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC75913  Hieracium albiflorum Miss M. Alice King 1897-5-1 Sonoma near Healdsburg Comment
  SEINET9362826  Hieracium albiflorum Unknown 1995-6-8 2825 Sonoma 7 mi NW of Calistoga. Madrone-Douglas Fir-Quercus-Rhus assoc. Rdside rubble Botany 102, Botany Department, University of California, Davis. Comment
  UCD35325  Hieracium albiflorum Beecher Crampton 1955-6-8 2825 Sonoma 7 miles northwest of Calistoga. Comment
  SEINET12164293  Hoita macrostachya W. Knight, Knight, I. 1984-1 5051 Sonoma 3 mi up Cavedale rd from Hwy 12 growing in web area at spring Comment
  UC16315  Hoita orbicularis F. T. Bioletti 1892-1 Sonoma Point Arena Comment
  CAS-BOT-BC280799  Holcus lanatus John H. Thomas 1976-6-16 18337 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  JEPS71229  Holcus lanatus Virginia Bufford 1932-8-27 504 Sonoma near Occidental; near Occidental Comment
  UC573682  Holcus lanatus H. S. Yates 1937-5-30 6538 Sonoma 1 1/2 mi nne Graton; Sebastopol Quadrangle Comment
  POM274868  Holodiscus discolor Lyman D. Benson 1928-6-25 351 Sonoma Cloverdale-Hopland, Russian River. 457 Comment
  CAS-BOT-BC152391  Holodiscus discolor var. discolor D. E. Breedlove 1980-6-27 44761 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC166736  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake. Comment
  UCR244742  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 361 Comment
  HSC90904  Holozonia filipes Rimo Bacigalupi, Peter Rubtzoff 1976-8-6 Sonoma Knights Valley; off S side of Bavarian Lion Company ranch road (between it and a creek), 1-1.5 mi. W of its junction with Franz Vally Rd. (0.4 mi. S of Hwy. 128) Comment
  RSA783727  Holozonia filipes Peter Rubtzoff 1961-7-22 4661 Sonoma Bennett Mountain Lake. Comment
  UCD148362  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC289540  Hordeum brachyantherum subsp. californicum Roxana S. Ferris; Laura Lorraine 1961-6-14 13545 Sonoma Junction of Occidental Road with Facendini Lane Comment
  RSA128787  Hordeum murinum subsp. glaucum P. H. Raven 1950-4-6 1561 Sonoma Cotati to Santa Rosa. 30 Comment
  UCD85936  Hordeum murinum subsp. glaucum Frederica Bowcutt 1984-6-24 465 Sonoma Salt Point State Park. Approx. 20 miles north of Jenner and 80 miles south of Fort Bragg. Old home site near existing barn along road to Gerstle Cove parking lot. Northwest of Gerstle Cove approx. 1/4 mile. West of Highway 1. 30 Comment
  RSA611288  Horkelia californica Joseph A. Ewan 1935-5-12 9198 Sonoma 2 miles west of Bodega, on Bodega Bay Road Comment
  CAS-BOT-BC146521  Horkelia tenuiloba John Thomas Howell 1937-7-4 13083 Sonoma 5 miles north of Sebastopol Comment
  UC424851  Horkelia tenuiloba Milo S. Baker 1929-5-7 3457 ba Sonoma near Sebastopol Comment
  CAS-BOT-BC175971  Hypericum Peter Rubtzoff 1971-6-10 6535 Sonoma Pitkin Marsh, near Forestville. Near the southern end of the upper part of the marsh Comment
  UC177302  Hypericum anagalloides W. E. Bryant July 1887 Sonoma Healdsburg Comment
  OBI48678  Hypericum concinnum Michener & Bioletti, Bioletti June 1893 s.n. Sonoma Hood's peak Comment
  UC1084463  Hypericum concinnum G. Thomas Robbins 1937-6-5 227 Sonoma roadside near Graton (Vine Hill region); Vine Hill region Comment
  SBBG4757  Hypericum concinnum H. and M. Dearing 1939-5-14 3345 Sonoma near Healdsburg Comment
  SEINET11987351  Hypericum concinnum W. Knight, Knight, I. 1981-1 Sonoma 4.1 mi up Cavedale Road from jct of state rt. 12 Comment
  JEPS128241  Hypochaeris glabra Roger Raiche 2000-5-4 078 .00 Sonoma The Cedars. Promentory, Cabin Site. Lower Russian River, Big Austin Creek watershed. Comment
  UCD133345  Hypochaeris glabra P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  SBBG21186  Hypochaeris radicata V. Haraden 1941-7-13 9 Sonoma ca. 1 mi N of head of Bodega Bay Comment
  SBBG8489  Hypochaeris radicata H. and M. Dearing 1939-4-29 3224 Sonoma 4 mi N of San Rafael Comment
  HSC13851  Iris douglasiana H. E. Parks, S. T. Parks 1930-5-9 619 Sonoma Head of Alexander Valley Comment
  POM168822  Iris douglasiana A. A. Heller, H. E. Brown 1902-3-29 5182 Sonoma Bodega Bay Comment
  SEINET12048687  Iris douglasiana F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -156 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  SEINET12050753  Iris douglasiana F. H. Utech 1988-1 88 -183 Sonoma 0.15 mi SE from East Avenue junction with Bohemian Road on latter 140 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
  UC725363  Iris purdyi A. A. Heller 1940-5-10 15611 Sonoma w of Skagg's Springs (on the road to Stewart Point) Comment
  CAS-BOT-BC112389  Isolepis carinata John Thomas Howell; J. W. Stacey 1937-6-6 13027 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC112416  Isolepis carinata Peter Rubtzoff 1963-5-26 5140 Sonoma Bennett Mtn. Lake. Comment
  HSC100952  Isolepis carinata Peter Warner 2011-5-13 191 Sonoma Jenner Headlands, Upper Russian Gulch Pasture, near S fence-line with Boat Field, small drainage flowing NW towards Russian Gulch. 248 Comment
  CAS-BOT-BC340226  Jaumea carnosa Peter Rubtzoff 1962-8-3 5029 Sonoma Lower Salmon Creek Marsh Comment
  CAS-BOT-BC340232  Jaumea carnosa Roxana S. Ferris 1937-8-18 9372 Sonoma Near mouth of Salmon Creek on Bodega Bay Comment
  CAS-BOT-BC340230  Jaumea carnosa W. M. Hiesey 1948-8-19 s.n. Sonoma 0.2 mi. north of Pigeon Point Lighthouse Comment
  CAS-BOT-BC322124  Juncus arcticus Peter Rubtzoff 1962-5-11 4816 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  UCR250390  Juncus balticus Peter Rubtzoff 1957-5-11 3333 Sonoma Occidental Marsh Comment
  UC1601709  Juncus bolanderi F. T. Bioletti 1893-5-27 718 Sonoma Glen Ellen Comment
  RSA368149  Juncus bolanderi Christopher Davidson 1977-6-20 6024 Sonoma Dry Creek Road, 11.9 miles W of Geyserville. Gravel bar in Warm Springs Creek. 137 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
  UC1601701  Juncus bufonius J. Burtt Davy 1894-6-17 Sonoma Knights Valley Comment
  CAS-BOT-BC173534  Juncus dubius Peter Rubtzoff 1972-6-27 6792 Sonoma Atascadero Creek Marsh Comment
  CDA31034  Juncus effusus D. G. Kelch, Troy McGregor 2010-8-22 10 .338 Sonoma Geyser Peak Rd. Comment
  RSA785890  Juncus effusus Peter Rubtzoff 1964-7-29 5455 Sonoma Duncans Mill Marsh. Comment
  SEINET3878596  Juncus effusus Kaye H. Thorne 1984-11-22 3667 Sonoma Sea Ranch, Black Point near Lodge.; 0 Comment
  CAS-BOT-BC157984  Juncus effusus subsp. pacificus Peter Rubtzoff 1959-6-20 4177 Sonoma Willow Creek Marsh Comment
  CDA42414  Juncus effusus subsp. pacificus D. G. Kelch 2012-5-2 12 .068 Sonoma Dry Creek Valley; near Preston Organic Winery along tributary of Dry Creek. Comment
  UCD144658  Juncus effusus subsp. pacificus Frederica Bowcutt 1994-5-1 1781 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco,10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. Campground S of Sonoma Creek about 150 yards. 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 Comment
  RSA368221  Juncus effusus subsp. pacificus Christopher Davidson 1977-6-20 6025 Sonoma Dry Creek Road, 11.9 miles W of Geyserville. Gravel bar in Warm Springs Creek. 137 Comment
  UCD141578  Juncus lescurii Terri Williamson 1990-5-20 64 Sonoma Bayflat Road. Bodega Bay. 3 Comment
  UCR248765  Juncus lescurii Peter Rubtzoff 1962-10-9 5117 Sonoma Lower Salmon Creek Marsh 6 Comment
  UC1146699  Juncus occidentalis Freed W. Hoffman 1941-5-18 2180 Sonoma Franz Valley North Coast Ranges Comment
  CDA13126  Juncus orthophyllus G. F. Hrusa, R. Gross 1996-6-3 13061 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
  CAS-BOT-BC250926  Juncus phaeocephalus J. Penalosa 1961-5-24 1588 Sonoma Upper Stemple Creek Marsh Comment
  UC589957  Juncus phaeocephalus var. paniculatus H. S. Yates 1936-5-16 5596 Sonoma 2 mi se Forestville; Sebastopol Quad., Pitkin Marsh 30 Comment
  UC903171  Juncus phaeocephalus var. phaeocephalus Ethel Crum 1940-5-26 2113 Sonoma Vine Hill North Coast Ranges, Pitkin Marsh Comment
  RSA94456  Juncus phaeocephalus var. phaeocephalus Peter Rubtzoff 1951-6-10 201 Sonoma Pitkin Marsh, near Forestville; Between the Upper and the Lower marshes. Comment
  UCD164994  Juncus xiphioides Peter Rubtzoff; Nancy Harrison 1974-9-7 7871 Sonoma Hinebaugh Creek in Rohnert Park. Creek bed, west of Commerce Blvd. crossing. Comment
  CAS-BOT-BC235869  Keckiella corymbosa W. W. Carruth 1900-7-1 s.n. Sonoma Russian River near Cloverdale Comment
  CAS-BOT-BC350941  Koeleria Peter Rubtzoff 1964-6-6 5357 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  UC1011011  Koeleria macrantha Virginia Bufford 1936-5-20 334 Sonoma Kellogg-Mark West Rd 3 mi from Kellogg Comment
  UCD85719  Koeleria macrantha T. S. Brandegee 1888-6-1 s.n. Sonoma Island of Santa Rosa, coast of California. Comment
Read comments
Apr 25 2016
  UCD86025  Koeleria macrantha Beecher Crampton 1957-7-22 4396 Sonoma 1/4 mile north of Fort Ross, State Hwy. 1. Comment
  HSC100956  Koeleria macrantha Peter Warner 2011-5-13 195 Sonoma Jenner Headlands, Upper Russian Gulch Pasture,~1.5 km, N70 deg. E of Hwy. bridge at Russian Gulch, ~ 90 m N of power lines. 203 Comment
  UC1019891  Koeleria macrantha Milo S. Baker June 1945 10923 Sonoma opposite house at Maplewood Adobe Canyon Comment
  UC903716  Koeleria macrantha Milo S. Baker 1947-5-7 11733 Sonoma 2 mi n Kenwood (above house at Maplewood); n of Kenwood Comment
  SEINET11808817  Lactuca saligna W. Knight, Knight, I. 1989-1 6501 Sonoma across street from Union Hotel in Occidental Comment
  UC1069689  Lactuca serriola H. S. Yates 1935-10-3 5344 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  CDA2215  Lagurus ovatus T. C. Fuller 1971-6-3 19897 Sonoma Sea Ranch. 0 Comment
  JEPS97572  Lagurus ovatus R. D. Stone 1980-11-28 324 Sonoma Northern part of the Sea Ranch development N of Stewart's Point. Comment
  SEINET190913 Image available Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mi N of Steward Point. Comment
  CAS-BOT-BC164354  Lamiaceae Peter Rubtzoff 1954-8-11 1684 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC486689  Lamiaceae Peter Rubtzoff 1971-6-25 6565 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing Comment
  JEPS86746  Lasthenia burkei Jack and Betty Guggolz 1990-4-6 1029 Sonoma 1.25 mi nw old Windsor (Kidd Development) 41 Comment
  UC1594206  Lasthenia burkei L. Huntington 1990-5-4 256 Sonoma n side of Laguna de Santa Rosa; Sebastapol 18 Comment
  UCD133642  Lasthenia burkei Peter Rubtzoff 1966-5-7 5716 Sonoma Laguna de Santa rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCD150130  Lasthenia burkei Ayzik Solomeshch 2009-5-11 s.n. Sonoma Northwest of the city of Santa Rosa, S of River Rd and W of Fulton Rd. Just N of Wood Rd. Sampling pool #4. 44 Comment
  RSA784684  Lasthenia burkei Mark Elvin 1997-5-7 399 Sonoma Near SE corner of Sonoma Co airport adjacent to main runway. 11 Comment
  CAS-BOT-BC355518  Lasthenia glaberrima Peter H. Raven 1963-4-28 18254 Sonoma 4.7 miles south of El Verano on Arnold Drive Comment
  JEPS73356  Lasthenia glaberrima Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 752 Sonoma 1 mi w Two Rock junction Comment
  RSA276854  Lasthenia glaberrima Peter Rubtzoff 1966-5-30 5747 Sonoma Laguna de Santa Rosa, NE of Graton, at end of Piner Road Comment
  CAS-BOT-BC352789  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  POM361574  Lasthenia macrantha subsp. macrantha J. T. Howell 1931-4-18 6425 Sonoma 8 miles N of Bay Comment
  CAS-BOT-BC370854  Lasthenia minor John Thomas Howell 1931-4-18 6420 Sonoma mouth of Salmon Creek, 2 miles n. of Bay Comment
  CAS-BOT-BC370899  Lasthenia minor Peter Rubtzoff 1960-5-18 4376 Sonoma Bodega Head Marsh. Comment
  SD241760  Lasthenia minor J. Clausen 1935-5-24 1084 Sonoma 5 miles south of Jenner, on bluffs overlooking the ocean. Comment
  RSA783476  Lathyrus Peter Rubtzoff 1974-4-17 7363 Sonoma Upper Green Valley Marsh area Comment
  RSA783472  Lathyrus Peter Rubtzoff 1971-9-1 6672 Sonoma Spring Creek Reservoir area east of Santa Rosa Comment
  UCD166119  Lathyrus Peter Rubtzoff 1972-5-25 6769 Sonoma Laguna, Chileno Valley. Comment
  UCD106205  Lathyrus cicera Botany 102 Students 1994-6-12 1843 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 about 35 yards, N of Adobe Canyon Rd. Trail head for Pony Gate trail near kiosk and visitor center. 411 Comment
  SEINET956151  Lathyrus polyphyllus Carl B. Wolf 1934-1 5799 Sonoma 6/10 mi. Inland from Stwearts Pt. Redwood forest floor, semishade. 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
  UCD159762  Lathyrus sulphureus James A. Neilson Jr. 1975-1-24 3430 Sonoma Mayacmas Mountains; Alder Creek drainage; along tributary of Alder Creek. Reservoir #2. Dominichelli Ranch. (Exact location unknown. Elevation and coordinates estimated by label maker.) 731 Comment
  CAS-BOT-BC366856  Lathyrus vestitus Greg de Nevers 1998-3-14 11147 Sonoma Duncans Landing beach, north of Bodega Bay 0 Comment
  UCR265133  Lathyrus vestitus Ann Howald 2015-4-1 3333 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 16.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 294 Comment
  UCSB22473  Lathyrus vestitus var. ochropetalus McCarthy, Sharon 1965-4-16 Sonoma North of junction of 5th Street West and Verano Avenue, Sonoma 60 Comment
  UCR244751  Layia Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC323228  Layia chrysanthemoides David D. Keck 1931-4-2 997 Sonoma Boyes Springs. 30 Comment
  CAS-BOT-BC323257  Layia chrysanthemoides Alice Eastwood 1921-4-24 10395 Sonoma Santa Rosa Comment
  CAS-BOT-BC323234  Layia chrysanthemoides A. A. Heller; H. E. Brown 1902-4-23 5355 Sonoma Near Sonoma Comment
  CAS-BOT-BC323255  Layia chrysanthemoides H. N. Bolander 1864-4-18 3902 Sonoma Santa Rosa Valley. [noted on sheet: in meadow at Mark West, Sonoma County] Comment
  HSC103521  Layia chrysanthemoides Thomas W. Nelson, Jane Nelson 1981-5-3 6469 Sonoma Along Presseley Rd., ~ 3 mi. N of junction with Roberts Rd. Comment
  POM53346  Layia chrysanthemoides A. A. Heller, H. E. Brown 1902-4-23 5355 Sonoma Near Sonoma. Comment
  CAS-BOT-BC123307  Layia chrysanthemoides subsp. maritima Jens Chr. Clausen 1935-5-24 1090 Sonoma 6.2 mi S of Jenner Comment
  CAS-BOT-BC321725  Layia gaillardioides David D. Keck; J. Clausen 1935-6-15 3379 Sonoma Russian River, 3 mi above mouth. Comment
  UCD133977  Layia platyglossa Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 36 Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. Comment
  SEINET11995839  Ledum glandulosum F. H. Utech 1988-1 88 -220 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point, mile marker 38.39 75 Comment
  UCD63606  Leersia oryzoides Freed W. Hoffman 1943-10-26 Sonoma Russian River, near Guerneville. Comment
  CAS-BOT-BC154154  Lemna Peter Rubtzoff 1965-11-9 5667 A Sonoma Laguna de Santa Rosa area, E of Graton (btwn. Occidental and Guerneville Roads). Comment
  CAS-BOT-BC210103  Lemna Peter Rubtzoff 1970-8-18 6315 Sonoma 5 miles north of Sears Point. Comment
  UCD148504  Lemna Peter Rubtzoff 1965-11-9 5668 Sonoma Russian River at Forest Hills, 5.5 mi. E of Guerneville. Comment
  UC1101272  Lemna minuscula Malcolm A. Nobs, S. Galen Smith 1949-8-1 1105 Sonoma 2 mi e of Stewart's Point (on road to Geyserville) Comment
  CAS-BOT-BC173651  Lepidium Peter Rubtzoff 1964-6-24 5377 Sonoma Coleman Marsh, along Salmon Creek Comment
  CAS-BOT-BC89739  Lepidium latifolium Walter Knight; Irja Knight 1963-8-9 199 Sonoma North side Lakeville Highway at Petaluma Fertilizer office - Petaluma (waif). Comment
  UC517474  Lepidium oxycarpum John Thomas Howell 1933-4-1 10924 Sonoma Petaluma Comment
  UC72925  Lepidium virginicum var. pubescens Miss M. Alice King Apr 1897 Sonoma near Healdsburg Comment
  CAS-BOT-BC273997  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1961-10-15 4760 Sonoma Vacation Beach, 2 miles below Guerneville Comment
  CAS-BOT-BC274000  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point Comment
  RSA262194  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC273995  Leptochloa fusca subsp. fascicularis Catherine Best 1987-7-2 1291 Sonoma At the intersection of Todd and Llano Rds. Comment
  SEINET7967475 Image available Leptosiphon androsaceus James Grimes 1981-4-29 1977 Sonoma On Highway 128 2.1 miles north of US 101, north of Cloverdale. Comment
  RSA122133  Leptosiphon androsaceus E. Armstrong 1934-3-26 936 Sonoma 4 miles N. of Camp Meeker 61 Comment
  UCR265105  Leptosiphon bicolor Ann Howald 2015-4-1 3337 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 18.3 miles west of intersection with Rockpile Rd, Wolf Creek drainage 131 Comment
  CAS-BOT-BC226701  Leptosiphon jepsonii D. E. Breedlove 1983-4-11 58684 Sonoma Pepperwood Ranch W of Knights Valley Comment
  JEPS127611  Leptosiphon jepsonii Estelle P. Clifton 2016-4-14 Sonoma 4611 Porter Creek Road, Santa Rosa Comment
  UC23774  Leptosiphon parviflorus W. H. Brewer 1862-4-17 983 Sonoma Sonoma Comment
  JEPS87255  Lessingia arachnoidea Jack and Betty Guggolz 1992-8-29 1338 Sonoma 3/8 mi nne of the quarry on the highway 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
  UC912541  Lessingia ramulosa John Thomas Howell 1920-11-14 2250 Sonoma hills se Santa Rosa 83 Comment
  CAS-BOT-BC342001  Lessingia ramulosa John Thomas Howell No date on label 2250 Sonoma SE. of Santa Rosa 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
  UC1146642  Leymus triticoides Freed W. Hoffman 1941-6-22 2084 Sonoma Wright's Beach North Coast Ranges, Sonoma Coast Comment
  CAS-BOT-BC451706  Lilaea scilloides Greg de Nevers 1997-5-30 11011 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC451714  Lilaea scilloides Peter Rubtzoff 1971-7-9 6593 Sonoma 5 mi. north of Sears Point. Comment
  UC173370  Lilaeopsis occidentalis Katharine Brandegee June 1905 Sonoma Bodega Head Comment
  CAS-BOT-BC133001  Lilium rubescens Greg de Nevers 1990-6-11 9672 Sonoma Pepperwood Natural Preserve, 3450 Franz Valley Road, Weimar Canyon 457 Comment
  UC496430  Lilium rubescens Merle Randall 1930-6-11 Sonoma 2 mi from Cazadero (Christopher Ranch) 304 Comment
  RSA215900  Limnanthes douglasii Peter Rubtzoff 1955-4-30 1788 Sonoma Stony Point Marsh. Comment
  POM137451  Limnanthes douglasii subsp. douglasii A. A. Heller, H. E. Brown 1902-4-16 s.n. Sonoma Fields east of Santa Rosa Comment
  UC1331756  Limnanthes vinculans R. Ornduff 1965-5-8 6860 Sonoma e Cunningham (nr. Llano Road); Laguna de Santa Rosa Comment
  UC1368724  Limnanthes vinculans Peter Rubtzoff 1969-5-3 6026 Sonoma e Sebastopol; Laguna de Santa Rosa Comment
  UCD166212  Limosella acaulis Peter Rubtzoff 1970-5-16 6220 Sonoma 5 miles north of Sears Point. Comment
  JEPS46296  Linanthus androsaceus Eleanor Armstrong 1933-4-15 719 Sonoma Camp Meeker 45 Comment
  SEINET12329973  Linanthus androsaceus F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -195 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  SEINET6969972  Linanthus androsaceus W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma About 7.8 miles south-southeast of Annapolis. Northwest Sonoma County Comment
  JEPS58244  Linanthus bicolor M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma between Gurneville and Monte Rio; Russian River Comment
  UC879936  Linanthus dichotomus Alice Eastwood 1922-5-4 11273 Sonoma Mt. St. Helena Comment
  UC908781  Linanthus jepsonii Herbert L. Mason 1928-4-13 4334 Sonoma Reibli School, near springs Comment
  CAS-BOT-BC225244  Linanthus latisectus Greg de Nevers 1995-5-5 10722 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, on the way to Wiemar Flat 487 Comment
  UCD164544  Lindernia Peter Rubtzoff 1975-8-26 8357 Sonoma Bennett Mountain Lake, northern lakeshore. Comment
  CHSC20702  Lithocarpus densiflorus Robert A. Schlising; Lloyd Thurman 1962-6-15 2311 Sonoma Skaggs Springs Road, 12 mi W Jct with Dutcher Creek Road. Comment
  SEINET8724410 Image available Lithocarpus densiflorus L. Fallon 1939-1 s.n. Sonoma 15 miles west of Santa Rosa. Comment
  JEPS46181  Lithophragma affine Eleanor Armstrong 1933-4-15 734 Sonoma Bodega Hill 18 Comment
  UCD55141  Lithophragma affine Ellen Dean; Tammie Beyerl 2006-4-28 3023 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 174 Comment
  CAS-BOT-BC430585  Lithophragma affine G. DeNevers 1981-4-11 697 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC437153  Lithophragma heterophyllum J. W. Congdon 1883-4-1 19 Sonoma Petaluma Santa Rosa Comment
  SEINET11690148  Lolium multiflorum J. T. Howell, Knight, W.; Knight, I. 1987-1 6231 Sonoma Todd Road Preserve, NE corner of Llano & Todd Rds 24 Comment
  SEINET11690152  Lolium multiflorum W. Knight, Knight, I.; Howell, J. T. 1987-1 6280 Sonoma Todd Road Preserve, near corner of Llano Road 24 Comment
  UCD66634  Lolium temulentum A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3570 Sonoma 9.1 miles northwest of Santa Rosa. Comment
  CAS-BOT-BC269193  Lolium temulentum K. Wagnon 1939-4-20 181 Sonoma Across the road from Santa Rosa Country Club, about 5 miles east of Santa Rosa Comment
  SEINET7067344  Lomatium californicum A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles east of Windsor on Porter Creek Road. Coordinate datum: NAD27. UTM Zone 10, 526145mE, 4266921mN. Comment
  SD99412  Lomatium californicum Christopher Davidson 1977-6-20 6021 Sonoma Dry Creek Road, 9.3 miles west of Geyersville 89 Comment
  SD130503  Lomatium dasycarpum F. Almeda, G. DeNevers 1981-4-28 4911 Sonoma Pepperwood Ranch, near Bechtel cabin. Comment
  UC1046220  Lomatium dasycarpum subsp. dasycarpum Lincoln Constance 1953-4-4 3448 Sonoma 1 mi. s.w. Petrified Forest (Mark West rd.) Comment
  UCD127043  Lomatium dasycarpum var. dasycarpum Frederica Bowcutt 1994-5-21 1803 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa, about 2.5 air miles NE of Kenwood,. Along Meadow Trail, approx. 3/8 mile from trailhead. 1300 Comment
  JEPS79430  Lomatium macrocarpum Nancy Harrison 1980-4-6 2095 Sonoma near Glen Ellen (Sonoma Valley Park, s. on cow trail going down steep slope); Sonoma Valley Park Comment
  UCD167357  Lomatium marginatum James Neilson 1982-6-8 4079 Sonoma Mayacmas Mountains. East of Castle Rock Springs Camp. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1076677  Lomatium utriculatum C. Ritchie Bell 1952-3-19 1247 Sonoma top of Larksur Rock Bodega; , Larkspur Rock Comment
  UC1123059  Lomatium utriculatum H. S. Yates 1934-4-21 3794 Sonoma near Bodgea; Sebastopol Quad. Comment
  UC1714578  Lomatium utriculatum J. Burtt Davy 1896-3-15 1668 Sonoma near Cazadero Comment
  CAS-BOT-BC240646  Lonicera hispidula Walter Knight; Irja Knight 1963-10-3 318 Sonoma Crane Canyon Comment
  UC28524  Lonicera hispidula var. vacillans J. Burtt Davy Aug. 1896 4140 Sonoma Russian River Comment
  UCD137392  Lonicera involucrata P. B. Kennedy 1915-5-31 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC244008  Lonicera involucrata var. ledebourii Peter Rubtzoff 1952-3-23 898 Sonoma North of the Lower Marsh, Pitkin Marsh near Forestville Comment
  CAS-BOT-BC244009  Lonicera involucrata var. ledebourii Peter Rubtzoff 1964-6-3 5345 Sonoma Bodega Bay Marsh Comment
  CAS-BOT-BC244011  Lonicera involucrata var. ledebourii Peter Rubtzoff 1953-5-16 1368 Sonoma Vacation Beach, near Guerneville, bank of Russian River Comment
  UCR275253  Lotus Peter Rubtzoff 1974-9-7 7887 Sonoma Hinebaugh Creek in Rhonert Park, creek bed west of Commerce Blvd. crossing 29 Comment
  UCD35134  Lotus angustissimus Beecher Crampton 1946-8-16 417 Sonoma Fort Ross. Comment
  OBI13230  Lotus angustissimus Robert F. Hoover 1964-9-8 9287 Sonoma KolmerGulch (near Fort Ross) Comment
  SD113608  Lotus angustissimus Darley F. Howe 1962-7-2 3573 Sonoma 0.9 mile north of junction with #12 on #1. Comment
  UC1299177  Lotus humistratus Freed W. Hoffman 1947-7-30 1415 Sonoma near Guerneville (Great Eastern Qucksilver Mines); North Coast Ranges Comment
  UC58330  Lotus junceus A. A. Heller 1903-4-25 6597 Sonoma Fort Ross Comment
  UC424789  Lotus junceus var. biolettii Milo S. Baker Apr 1930 4845 b Sonoma near Plantation Comment
  UC1784177  Lotus oblongifolius Milo S. Baker 1928-4-28 3008 b Sonoma Pitkin Marsh Comment
  UC353934  Lotus stipularis var. stipularis Milo S. Baker 1928-4-18 2970 a Sonoma near Vine Hill School Comment
  UC907562  Lotus tenuis Freed Hoffman 1948-8-12 Sonoma headwaters of Warm Springs Creek Warm Springs Creek 533 Comment
  RSA138211  Lotus unifoliolatus Volney Rattan 1877-1 s.n. Sonoma Santa Rosa Comment
  RSA389  Lotus unifoliolatus E. R. Johnson 1928-8-22 1108 Sonoma Russian River, 1/2 mile E of Cloverdale Comment
  RSA31789  Lotus wrangelianus A. A. Heller 1938-5-14 15079 Sonoma Bluff north of Bodega Bay. Comment
  CAS-BOT-BC290614  Ludwigia Peter Rubtzoff 1987-9-27 9853 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  CAS-BOT-BC478122  Ludwigia Peter Rubtzoff 1986-8-31 9731 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  CDA9765  Ludwigia grandiflora subsp. hexapetala Erik Hawk 2007-10-1 s.n.-LWA Sonoma Wildlife Area, between Guerneville Rd. and Occidental Rd., Laguna de Santa Rosa. Comment
  UCD65993  Ludwigia hexapetala B. J. Grewell 2005-10-3 05- 33 -LU Sonoma Laguna Wildlife Area, Laguna de Santa Rosa at Blucher Creek Confluence. California Dept. of Fish and Game. Downstream of Todd Road bridge, Laguna de Santa Rosa south of Sebastopol, CA. 22 Comment
  UCD66046  Ludwigia hexapetala Robert McKee; Greg Woods 2006-7-31 06- 55 -LU Sonoma Russian River upstream of Wohler Bridge @ Sonoma County Water Agency collectors. 10 Comment
  CAS-BOT-BC251280  Ludwigia palustris Peter Rubtzoff 1961-10-23 4778 Sonoma Laguna de Santa Rosa area, northeast of Graton. Comment
  CAS-BOT-BC164642  Ludwigia peploides Peter Rubtzoff 1955-9-10 2134 Sonoma East Guernewood, near Guerneville along Russian River. Comment
  CAS-BOT-BC201226  Lupinus A. A. Heller 1937-5-1 s.n. Sonoma Base of the bluff north of the town of Bay, Bodega Bay Comment
  CDA36944  Lupinus adsurgens CDFA Staff 2008-1 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 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
  UCD105999  Lupinus albifrons Collector Unknown Date Unknown s.n. Sonoma southwestern part of county. Comment
  CAS-BOT-BC196044  Lupinus albifrons var. collinus Peter Rubtzoff 1953-5-18 1414 Sonoma Near road from Edendale to Vacation Beach, near Guerneville Comment
  CHSC904  Lupinus arboreus A. Small 1954-6-4 Sonoma Doran Park. Comment
  CDA27416  Lupinus bicolor T. C. Fuller 1977-4-21 20192 Sonoma Church of Christ property, 1825 Fulton Road, 0.5 km south of Piner Road, Santa Rosa. 0 Comment
  HSC14954  Lupinus bicolor S. N. Wiemeyer 1932-4-13 12 Sonoma 2.1 mi. N of jct. of Calistoga Rd. and Hwy. 12 274 Comment
  UCD107010  Lupinus chamissonis M. Barbour 1970-11-30 s.n. Sonoma Bodega Head. Comment
  SEINET10838181  Lupinus densiflorus Joseph W. Congdon 1880-5-30 Congdon s.n. Sonoma Petaluma. Comment
  SEINET12165200  Lupinus densiflorus var. palustris F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -224 Sonoma Valley Ford, junction of CA 1 & Valley Ford-Freestone highway, along Ebabias Creek 30 Comment
  UCD108128  Lupinus latifolius P. B. Kennedy 1915-5-31 22 Sonoma Annapolis. Comment
  OBI59275  Lupinus leucophyllus Rhonda Riggins 1993-6-23 1693 Sonoma 5 mi N of Bodega Bay along hwy 1 Comment
  CDA27499  Lupinus microcarpus var. densiflorus T. C. Fuller 1966-6-2 14858 Sonoma East side of Pacific Coast Highway 1, 0.2 mile south of junction with Petaluma-Valley Ford Road, 1 mile east of Valley Ford. 0 Comment
  UC155230  Lupinus microcarpus var. densiflorus Katharine Brandegee 1907-6-30 Sonoma Cliffs near Bodega Bay; Cliffs near Bodega Bay Comment
  SD88508  Lupinus microcarpus var. microcarpus Darley F. Howe 1972-6-29 Sonoma North of Jenner Comment
  SD88509  Lupinus microcarpus var. microcarpus Darley F. Howe 1972-6-28 Sonoma North of Jenner Comment
  SEINET7063004 Image available Lupinus nanus A. G. Vestal 1955-5-8 s.n. Sonoma South of Bennett Mountain. UTM Zone 10, 532837mE, 4251642mN. (WGS84/NAD83). 573 Comment
  UC65701  Lupinus nanus A. A. Heller 1902-4-9 5233 Sonoma Healdsburg Comment
  SEINET10970295  Lupinus nanus subsp. nanus Mcberty 1961-5-13 MCBERTY 35 Sonoma In moist, open pasture at end of hutchins avenue, 1 mi e of sebastopol. Comment
  CDA9233  Lupinus polyphyllus var. polyphyllus D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  CDA27599  Lupinus variicolor T. C. Fuller 1966-6-2 14586 Sonoma Road to Petaluma, 1 mile east of Valley Ford. 0 Comment
  SEINET5500889 Image available Lupinus variicolor Sally Walker 1984-6-6 Sonoma Salt Point Comment
  SEINET13198378 Image available Lupinus versicolor A. G. Vestal 1947-5-13 s.n. Sonoma Comment
  CAS-BOT-BC210019  Luzula Peter Rubtzoff; Nancy Harrison 1978-6-11 9205 Sonoma Cunningham Marsh area. On north side of Blucher Creek Valley Comment
  UCD166730  Luzula Peter Rubtzoff 1962-4-11 4793 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC210025  Luzula Peter Rubtzoff 1958-5-17 3680 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
  UC570331  Luzula comosa H. S. Yates 1936-5-16 5591 Sonoma two mi se Forestville; Sebastopol Quad., se of Forestville 30 Comment
  UCD165122  Luzula comosa Peter Rubtzoff 1974-4-17 7369 Sonoma Upper Green Valley Marsh area. Comment
  UCD167635  Lychnis coronaria James A. Neilson Jr. 1984-6-14 s.n. Sonoma Mayacmas Mountains. St. Helena trout farm. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1122875  Lythrum hyssopifolia H. S. Yates 1936-5-16 5599 Sonoma 2 mi se of Forestville (Pitkin Marsh); Pitkin Marsh 30 Comment
  RSA0015993  Lythrum hyssopifolia Peter Rubtzoff 1958-7-20 3784 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road). Comment
  SEINET12193549  Lythrum hyssopifolia W. Knight, Knight, I. 1983-1 4719 Sonoma Sonoma Mountain Rd #2 at former Jack London property at old Wake Robin Lodge site Comment
  CDA19068  Lythrum salicaria L. Correia 2001-7-16 PDR P 117378 Sonoma North Coast Ranges; N bank Russian River at Rio Nido and to east ~ 0.5 mi 0 Comment
  CAS-BOT-BC342616  Madia anomala John Thomas Howell 1959-5-7 34594 Sonoma Hills east of Agua Caliente Comment
  CAS-BOT-BC344050  Madia elegans John Thomas Howell 1930-7-13 5341 Sonoma Black Point Road Comment
  UCD134197  Madia elegans K. Esau 1932-8-28 s.n. Sonoma Near Petrified Forest. Comment
  RSA917  Madia elegans subsp. densifolia E. R. Johnson 1928-8-22 1110 Sonoma Cloverdale Comment
  UCSB45559  Madia exigua Roos, John 1957-7-2 Sonoma Miller Ridge Comment
  CAS-BOT-BC343449  Madia gracilis John H. Thomas 1976-6-18 18360 Sonoma About 4.6 miles west of Warm Springs Dam, between Skaggs Springs and Geyserville Comment
  UCR244755  Madia gracilis Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh 79 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
  CAS-BOT-BC345228  Madia sativa H. M. Hall 1916-7-24 10250 Sonoma Near Petaluma Comment
  UC830910  Madia sativa A. A. Heller 1902-8-18 6050 Sonoma Santa Rosa Comment
  CAS-BOT-BC345255  Madia sativa Peter Rubtzoff 1951-8-4 580 Sonoma Pitkin Marsh, near Forestville. Opening south of the Upper Marsh Comment
  CAS-BOT-BC345257  Madia sativa H. D. Ripley; R. C. Barneby 1945-6-22 6942 Sonoma North of Jenner 30 Comment
  CAS-BOT-BC345263  Madia sativa Milo S. Baker 1932-8-27 6010 Sonoma M. S. Baker ranch, Adobe Canyon Comment
  POM187938  Malacothrix floccifera Marcus E. Jones 1931-8-3 29094 Sonoma Cloverdale. Comment
  UCD161374  Melica James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Ridge between Squaw Creek and Big Sulphur Creek, (Elevation and exact location estimated by label maker.) 731 Comment
  UCD151224  Melica californica James A. Neilson Jr. 1974-5-17 2977 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, along road to PG and E geothermal units 9 and 10, northeast Sonoma County. (Elevation estimated using Google Earth by label maker.) 1005 Comment
  SEINET10599374  Melica californica A. Arthur Heller Heller 5351 Sonoma Comment
  UCD87214  Melica californica R. Tofsrud 1941-4-1 295 Sonoma S.R. Creek Cy. Comment
  CAS-BOT-BC281275  Melica geyeri G. DeNevers 1981-5-5 950 Sonoma Pepperwood Ranch. On the trail to the Studio Comment
  CAS-BOT-BC281277  Melica geyeri G. DeNevers 1981-5-14 1149 Sonoma Pepperwood Ranch. W arm of Garrison Canyon Comment
  UCD160976  Melica geyeri James A. Neilson Jr. 1975-7-8 3338 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  UCD87313  Melica geyeri Virginia Bufford 1937-5-10 453 Sonoma Top of O'farrell Hill -- West of Sebastopol. Comment
  UC971700  Melica geyeri Leo Koch 1940-4-24 843 Sonoma 1 mi n of 2.5 mi jct from Kenwood and Glen Ellen Glen Ellen; Bennett Valley Comment
  UCD36688  Melica harfordii Beecher Crampton 1955-6-17 2941 Sonoma 4.5 miles S of Cazadero. Comment
  UCD87389  Melica harfordii Beecher Crampton 1955-6-17 2941 Sonoma 4.5 miles S of Cazadero. Comment
  UCD87517  Melica harfordii P. B. Kennedy 1915-5-31 s.n. Sonoma Stewarts Point--Annapolis Road. Comment
  UCD87521  Melica harfordii P. B. Kennedy 1915-5-31 s.n. Sonoma Stewarts Point--Annapolis Road. Comment
  UCD87382  Melica harfordii Beecher Crampton 1955-6-8 2827 Sonoma Sonoma County, 7 miles northwest of Calistoga, along State Highway 128. Comment
  UCD88632  Melica subulata P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  RSA184996  Melica torreyana L. S. Rose 1965-4-4 s.n. Sonoma 1 mile north of Sonoma. 61 Comment
  UC1146646  Melica torreyana Freed W. Hoffman 1941-6-1 2187 Sonoma Oregon Canyon; North Coast Ranges Comment
  UC771211  Melica torreyana W. S. Boyle 1942-4-26 1076 Sonoma between Petrified Forest and Mark West (at junction of side road to Santa Rosa) Comment
  UCD89213  Melica torreyana M. Wiesendanger 1927-5-5 734 Sonoma Kenwood Springs. Comment
  UCD89200  Melica torreyana R. Tofsrud 1942-4-1 300 Sonoma Stream bank 3 mi. east of Mark West resort on same road. Comment
  UCD108072  Melilotus indicus Mary M. Hektner 1975-8-14 226 Sonoma Close to State Highway 1; Unit 24 Owners' Map, Sea Ranch. Comment
  RSA800065  Melilotus indicus Peter Rubtzoff 1968-8-31 5941 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC164362  Mentha Peter Rubtzoff 1958-9-27 4011 Sonoma Laguna de Santa Rosa, northeast of Graton (1.5 mi. N of Guerneville Road). Comment
  RSA247445  Mentha X piperita Peter Rubtzoff 1951-9-3 743 Sonoma Margin of creek at Hwy 12 SE of Forestville Comment
  JEPS117114  Mentha aquatica Peter Warner 2010-7-29 173 Sonoma Lower Pitkin Marsh, along primary drainage channel, near NE property boundary. Comment
  UCD166502  Mentha canadensis Peter Rubtzoff 1960-10-29 4584 Sonoma Laguna de Santa Rosa, east of Graton (btwn. Occidental and Guerneville Road). Comment
  UCR279622  Mentha canadensis Peter Rubtzoff 1959-8-2 4210 Sonoma Willow Creek Marsh 9 Comment
  UC126707  Mentha pulegium Geo. R. Hall 1906-10-14 Sonoma Guerneville; Bohemian Club Grove, etc. Comment
  CAS-BOT-BC164084  Mentha pulegium Peter Rubtzoff 1955-10-12 2165 Sonoma Duncans Mills Marsh, lower portion of marsh. Comment
  SBBG85792  Mentha pulegium L. F. LaPre 1986-7-29 Sonoma Pine Flat Rd, Pine Flat, near the Lake County line, 12 mi E of Healdsburg Comment
  CAS-BOT-BC166691  Mentha spicata Peter Rubtzoff 1968-8-24 5932 Sonoma Upper Salmon Creek Marsh. Comment
  RSA784400  Mentha spicata Peter Rubtzoff 1954-9-6 1740 Sonoma Guerneville Marsh. Comment
  UC727708  Mentha spicata Milo S. Baker 1946-8-17 11567 Sonoma hiwy between Sebastopol and Cunningham Comment
  CAS-BOT-BC164665  Mentha spicata Peter Rubtzoff 1952-6-15 1259 Sonoma Forestville Marsh. Comment
  JEPS87221  Mentzelia dispersa Jack and Betty Guggolz 1992-6-13 1314 Sonoma e Geyserville; Black Mountain, Anderson Trail; on the west side of Black Mountain NW 1/4 of NW1/4 615 Comment
  UCD151001  Micropus californicus D. S. Park; S. Nicole 2010-5-11 81 Sonoma California Route 1, near Bodega Bay. Comment
  SEINET11601909 Image available Microseris bigelovii P. Kamb, F. Chisaki 1952-6-21 2304 Sonoma Fort Ross Comment
  SEINET7096778  Microseris douglasii A. G. Vestal 1955-5-7 s.n. Sonoma Facendini Lane.Ca 1 mile east of Occidenta. NAD27, 38.4070? deg. , -122.9289?_ (converted to WGS84) UTM Zone 10, 506210mE, 4250769mN. Comment
  CAS-BOT-BC322707  Microseris laciniata John Thomas Howell 1937-6-6 13013 Sonoma Sebastapol Comment
  UCD165221  Microseris laciniata subsp. laciniata Peter Rubtzoff; Nancy Harrison, Dug Jones 1974-6-8 7576 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  SEINET11806900  Microseris linearifolia F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -173 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC320518  Mimulus Peter Rubtzoff 1978-6-11 9215 Sonoma Cunningham Marsh area. On north side of Blucher Creek Valley. Comment
  RSA0025384  Mimulus Peter Rubtzoff 1966-5-29 5742 Sonoma Pitkin Marsh. In lower part of the Upper Marsh. Comment
  RSA0025394  Mimulus Peter Rubtzoff 1962-5-30 4849 Sonoma Freestone Marsh. Comment
  RSA0025402  Mimulus Peter Rubtzoff 1976-6-18 8656 Sonoma Kenwood Marsh. Comment
  JEPS11702  Mimulus aurantiacus var. aurantiacus Francis W. Pennell Jul 2 1940-Jul 3 1940 26033 Sonoma mountain ne Kenwood Springs 243 Comment
  OBI39526  Mimulus aurantiacus var. aurantiacus F. H. Utech, Walter and Irja Knight, Irja Knight 1984-4-16 84 -076 Sonoma Ca. 4.0 mi NNW of Sonoma on Cavedale Rd from jctn with CA hwy 12; ca 0.4 mi N on Cavedale rd from jctn 107 Comment
  JEPS86852  Mimulus douglasii David M. Thompson 1989-3-18 990 Sonoma 2.8 mi w of birdge Lake Sonoma (along Rockpile Road, then 0.4 mi s along paved campground road to Liberty Glen campground entrance booth, 0.1-0.2 mi ne of parking area); Lake Sonoma Recreation Area 180 Comment
  UC1041002  Mimulus grandis J. W. Congdon 1880-3 Sonoma Petaluma Comment
  UCD122663  Mimulus grandis Mary M. Hektner 1975-8-14 226 -A Sonoma Unit 24 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UCR248894  Mimulus guttatus Peter Rubtzoff 1958-7-5 3748 Sonoma Atascadero Creek Marsh Comment
  HSC20728  Mimulus guttatus R. F. Good 1962-4-20 24 Sonoma 2 mi. W of Petaluma on D St. Extension toward Point Reyes. Sonoma Mtn. Coast Range 0 Comment
  RSA0022511  Mimulus guttatus Peter Rubtzoff 1958-7-5 3748 Sonoma Atascadero Creek Marsh. Comment
  POM5158  Mimulus kelloggii A. A. Heller, H. E. Brown 1902-3-25 5146 Sonoma Near Mark West Springs Comment
  NY90752  Mimulus nasutus H. T. Edwards 04 1877 s.n. Sonoma Knights Valley Comment
  UCR44927  Mimulus nudatus L. F. LaPre 1986-6-3 s.n. Sonoma Dorr Place, 4 mi up a private road from Mannings Flats in Austin Creek State Recreation Area, 6 mi north of Cazadero on upper Austin Creek 207 Comment
  UC124362  Mimulus pilosus T. S. Brandegee July 1887 Sonoma Healdsburg Comment
  JEPS19397  Mimulus tricolor G. Thomas Robbins 1938-5-19 264 Sonoma sw Santa Rosa (Stony Point Road, near The Lagunas) Comment
  CAS-BOT-BC388901  Minuartia douglasii M. S. Baker 1925-4-26 87 a Sonoma Maple Glen Comment
  RSA293379  Minuartia douglasii Reino Alava 1958-5-24 2069 Sonoma Hillside about one mile from Graton on the road from Graton to Occidental. Comment
  CAS-BOT-BC435109  Mollugo verticillata Peter Rubtzoff 1959-8-30 4245 Sonoma Drake's Beach, near Guerneville. Bottom of Russian River. Comment
  CAS-BOT-BC435111  Mollugo verticillata Peter Rubtzoff 1965-8-29 5624 Sonoma Russian River bottom at Forest Hills (5.5 mi. east of Guerneville). Comment
  JEPS87251  Monardella purpurea Jack and Betty Guggolz 1992-3-12 1242 Sonoma w side Rincon Ridge; Santa Rosa 213 Comment
  UC76203  Monardella villosa subsp. globosa Miss M. Alice King June 1897 Sonoma near Healdsburg Comment
  CAS-BOT-BC314179  Monardella villosa subsp. villosa Ella Dales Cantelow 1941-6-7 3706 Sonoma 3.2 mi N of Jenner. State Hwy 1. Comment
  CAS-BOT-BC314183  Monardella villosa subsp. villosa A. L. Graff 1926-6-1 s.n. Sonoma Near Cazadero. Comment
  CAS-BOT-BC166777  Montia Peter Rubtzoff 1967-5-21 5841 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  CAS-BOT-BC444987  Montia fontana John Thomas Howell 1933-4-1 10926 Sonoma Petaluma Comment
  CAS-BOT-BC444998  Montia fontana Greg de Nevers 1993-3-7 10317 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Above Double Ponds spring. 304 Comment
  UC1106074  Montia fontana John Thomas Howell 1949-4-6 25301 Sonoma sw of Sonoma Comment
  CAS-BOT-BC444985  Montia fontana J. Clausen 1933-3-25 731 Sonoma Between Warfield and Kenwood, along the highway Comment
  SEINET10674983 Image available Montia fontana A. Arthur Heller, H. E. Brown 1902-4-16 Heller 5313 Sonoma Fields east of Santa Rosa. Comment
  UC1713747  Montia parvifolia Milo S. Baker 1902-7-5 Sonoma Sonoma Creek Canyon Comment
  UC496426  Montia parvifolia Merle Randall 1930-6-8 Sonoma Cazadero, Austin Creek Austin Creek; Cazadero, Austin Creek Comment
  CAS-BOT-BC515643  Muilla maritima M. S. Baker 1924-3-27 s. n. Sonoma Slope of Taylor Mountain Comment
  RSA517354  Myosotis discolor L. T. Dempster 1958-5-24 1104 Sonoma Pitkin Marsh (on Pitkin Ranch). Comment
  CAS-BOT-BC257705  Myosurus Peter Rubtzoff 1966-4-17 5681 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  RSA461913  Myrica californica Christopher Davidson 1977-6-17 5887 Sonoma Coast Highway 1, ca. three miles north of Jenner. Comment
  CAS-BOT-BC251166  Myriophyllum aquaticum Peter Rubtzoff 1963-7-6 5195 Sonoma Laguna de Santa Rosa area east of Cunningham. Comment
  CAS-BOT-BC376236  Myriophyllum hippuroides Greg de Nevers 1996-10-18 10887 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Biggest Double Pond 487 Comment
  RSA800336  Myriophyllum hippuroides Peter Rubtzoff 1966-8-21 5797 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC456196  Najas guadalupensis Greg de Nevers 1991-8-8 9768 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In largest Double Pond. 475 Comment
  SEINET257714  Nassella formicarum Mary E. Barkworth, D. Amme 1989-6-15 5170 Sonoma About 2 miles north of Jenner on US 1 Comment
  UCD38706  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma TYPE LOCALITY: 3 miles south of Healdsburg, along US Hwy. 101. Comment
  UCD87470  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma 3 miles south of Healdsburg, along US Hwy. 101. Comment
  UCD87535  Nassella pulchra Mary M. Hektner; Sue Dakuzaku 1974-6-4 22 a Sonoma Unit 31 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD87696  Nassella pulchra H. S. Yates 1934-4-21 3780 Sonoma Near Bodega. 60 Comment
  CAS-BOT-BC260284  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma Raliroad cut through low hill, US Highway 101, 3 miles S of Healdsburg Comment
  CAS-BOT-BC344990  Nasturtium officinale Peter Rubtzoff 1954-6-6 1458 Sonoma Guerneville Marsh Comment
  SEINET12010247  Nasturtium officinale F. H. Utech 1988-5-21 88 -230 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Road on CA 1 100 Comment
  JEPS70348  Navarretia intertexta F. T. Bioletti Jun 1893 Sonoma Kenwood Comment
  UCD39804  Navarretia intertexta Collector Unknown 1947-5-16 Sonoma 4.5 miles E. of Windsor. Comment
  CAS-BOT-BC230369  Navarretia leucocephala subsp. bakeri Peter Rubtzoff; Nancy Harrison 1978-5-20 9176 Sonoma Todd Road 1.4 miles from Highway 116 and 0.6 mile from Llano Road (off N side of the road, in Todd Road Wildflower Preserve) Comment
  LA206694  Navarretia mellita John Thomas Howell; 1937-7-4 sn Sonoma near Petrified Forest Comment
  UC72062  Navarretia pubescens Miss M. Alice King Jun 1897 Sonoma near Healdsburg Comment
  OBI36027  Navarretia squarrosa John C. Roos 1950-7-22 4878 Sonoma 2 miles east of Duncan Mills 61 Comment
  UCR118961  Navarretia squarrosa Beecher Crampton 1957-7-11 4313 Sonoma Central coast, State Highway 1, 1.25 miles southeast Bodega Bay 15 Comment
  UC23886  Navarretia viscidula Harley P. Chandler 1900-5-25 673 Sonoma Bodega Comment
  UC494180  Nemophila heterophylla H. E. and S. T. Parks 1930-5-9 611 Sonoma Knights Valley Comment
  UC67144  Nemophila menziesii Milo S. Baker 1898-4-23 617 Sonoma Santa Rosa Creek Canyon Comment
  JEPS1477  Nemophila menziesii var. atomaria Eleanor Armstrong 1933-4-15 748 Sonoma Bodega Hill 6 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
  UC24256  Nemophila menziesii var. atomaria W. A. Setchell March, 1898 Sonoma Cloverdale Comment
  UCR255657  Nicotiana Greg de Nevers 1997-10-17 11106 Sonoma North Coast Range, Santa Rosa, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 400 Comment
  RSA0060128  Nicotiana quadrivalvis Barbara Ertter 1988-11-5 8030 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  UCD110181  Notholithocarpus densiflorus Mary M. Hektner; Cathy Hendel and Sue Dakuzaku 1974-7-4 118 Sonoma Between Units 28 and 34-A Owners' Map, Sea Ranch, near State Highway 1. 45 Comment
  UCD110189  Notholithocarpus densiflorus A. T. Leiser 1968-1-16 s.n. Sonoma Sea Ranch, N. end of ridge. 91 Comment
  JEPS128195  Notholithocarpus densiflorus var. densiflorus Roger Raiche 1999-12-4 052 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC140456  Oemleria cerasiformis G. DeNevers 1981-4-1 601 Sonoma E of road, in Leslie Creek Comment
  HSC100100  Oemleria cerasiformis J. P. Smith, & J. O. Sawyer 2010-4-26 12719 Sonoma 509 Comment
  CAS-BOT-BC368058  Oemleria cerasiformis Greg de Nevers 1998-5-20 11255 Sonoma Mark West Creek on Cresta Ranch 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
  POM15720  Orthocarpus erianthus A. A. Heller, H. E. Brown 1902-4-4 5219 Sonoma Hills east of Santa Rosa Comment
  POM183040  Orthocarpus erianthus A. A. Heller, H. E. Brown 1902-4-4 5219 Sonoma Hills near Santa Rosa. Comment
  POM15638  Orthocarpus erianthus A. A. Heller, H. E. Brown 1902-4-15 5292 Sonoma Santa Rosa. Comment
  POM15635  Orthocarpus faucibarbatus A. A. Heller 1903-4-23 6607 Sonoma Fort Ross. Comment
  RSA402033A  Orthocarpus lacerus Christopher Davidson 1977-6-20 6006 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  UC1295818  Osmorhiza berteroi unknown 1892-2 Sonoma Petrified Forest Comment
  UCD127765  Osmorhiza berteroi J. Adams; J. Weick 1993-5-8 296 Sonoma about 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. 365 Comment
  UC17220  Oxalis oregana J. Burtt Davy 1896-3-13 1638 Sonoma Duncan's Mills Comment
  UCSB7444  Oxalis oregana Keator, Glenn 1959-4-1 Sonoma 1 mile southeast of city limits of Camp Meeker Comment
  CAS-BOT-BC227659  Panicum Peter Rubtzoff; Nancy Harrison 1977-8-26 9120 Sonoma On grounds of Apple Time apple products cannery on the east side of former Perry Marsh, near Molino. Comment
  UCD165323  Panicum Peter Rubtzoff 1973-8-20 7232 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD166341  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCR244746  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  RSA94264  Panicum acuminatum var. acuminatum Peter Rubtzoff 1951-6-7 134 Sonoma Western branch of the Upper marsh; Pitkin Marsh, near Forestville Comment
  UCD89134  Panicum acuminatum var. thermale A. R. Kruckeberg 1949-6-4 S 21 Sonoma Sulphur Creek.Big Geysers. Comment
  CAS-BOT-BC253774  Panicum capillare Peter Rubtzoff 1956-9-14 2862 Sonoma Russian River bottom, Vacation Beach, near Guerneville Comment
  UCD88621  Parapholis incurva Beecher Crampton 1957-7-11 4316 Sonoma western edge of Bodega Harbor. About 2 miles, by road, west of the town of Bodega Bay. Comment
  CDA31308  Parentucellia viscosa D. G. Kelch, Ed Biffin 2010-5-3 10 .209 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  JEPS112829  Parentucellia viscosa Dean W. Taylor 1994-5-4 14218 Sonoma ca. 2 mi SW of Occidental; at junction of Bittner Road and Joy Road, 249 Comment
  JEPS66219  Parentucellia viscosa T. I. Chuang with L. R. Heckard, R. Bacigalupi and P. Rubtzoff 1971-6-10 6904 Sonoma s central Pitkin Marsh (near end of Templeton Road) Comment
  JEPS128190  Parnassia palustris Roger Raiche 1999-9-20 034 .99 Sonoma The Cedars. Grotto Pool. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS128230  Parnassia palustris Roger Raiche 2000-9-9 152 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC154989  Paspalum Peter Rubtzoff 1973-10-10 7342 Sonoma Tributary of Americano Creek, 2 mi. W of Bloomfield Comment
  UCD148512  Paspalum distichum Peter Rubtzoff 1965-8-16 5607 Sonoma Russina River margin at Forest Hills (5.5 miles E of Guerneville). Comment
  CAS-BOT-BC202873  Paxistima myrsinites M. S. Baker 1934-4-28 s.n. Sonoma Jensen Ranch, Dry Creek Valley, n. of Healdsburg Comment
  CDA17202  Pellaea andromedifolia G. F. Hrusa, R. Gross, D. Gross 2003-11-11 16201 Sonoma North Coast Biodiversity Arena; Kellogg Cr., NW base of Mt. St. Helena. 536 Comment
  UC399517  Pellaea andromedifolia Michener and Bioletti March 1893 Sonoma Hood's Peak 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
  UC42625  Pellaea mucronata var. mucronata F. T. Bioletti 1891-12-25 Sonoma Sonoma Comment
  RSA247449  Pennisetum glaucum Peter Rubtzoff 1968-9-21 5071 Sonoma Russian River bottom at Forest Hills, 5.5 mi east of Guerneville Comment
  NY601785  Penstemon heterophyllus var. purdyi H. L. Mason 1934-4-28 8071 Sonoma Head of Dohrman Creek, Jensen's Ranch Comment
  UC27595  Penstemon heterophyllus var. purdyi State Survey 1890-1 6540 Sonoma Russian River bed at Cloverdale; Russian River bed at Cloverdale Comment
  LA209546  Penstemon newberryi var. newberryi F. W. Embree; 1934-6-6 75 Sonoma 1 mi S, 0.25 mi W of Rutherford 1615 Comment
  CAS-BOT-BC71733  Pentagramma triangularis subsp. triangularis John H. Thomas 1976-6-18 18358 Sonoma About 4.6 miles west of Warm Springs Dam, between Skaggs Springs and Geyserville Comment
  CAS-BOT-BC71734  Pentagramma triangularis subsp. triangularis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54017 A Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove 457 Comment
  JEPS128377  Pentagramma triangularis subsp. triangularis Roger Raiche 2000-4-23 044 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1312868  Perideridia gairdneri subsp. gairdneri L. Constance and T. I. Chuang with Robert Ornduff and Peter Rubtzoff 1965-10-2 3766 Sonoma marsh on creek 1 mi nw Graton; Atascadero Creek 182 Comment
  UC1518541  Perideridia gairdneri subsp. gairdneri Betty Lovell 1984-7-22 696 Sonoma 1000 ft ne Hwy 12 junc. with Frey Rd. (w of creek); Kenwood quad. Comment
  CAS-BOT-BC413650  Persicaria amphibia Peter Rubtzoff 1956-9-15 2912 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC413651  Persicaria amphibia Peter Rubtzoff 1971-9-3 6701 Sonoma Spring Creek Reservoir area Comment
  CAS-BOT-BC413741  Persicaria hydropiper John Thomas Howell 1932-9-18 10779 Sonoma Bank of slough draining Kenwood Marsh Comment
  CAS-BOT-BC418903  Persicaria hydropiperoides Peter Rubtzoff 1954-8-10 1675 Sonoma Bodega Head Marsh Comment
  CAS-BOT-BC419110  Persicaria lapathifolia Peter Rubtzoff 1960-6-25 4516 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads Comment
  CAS-BOT-BC419112  Persicaria lapathifolia Peter Rubtzoff 1955-8-7 2030 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC419108  Persicaria lapathifolia John Thomas Howell 1932-9-18 10777 Sonoma Slough draining Kenwood Marsh Comment
  CAS-BOT-BC419273  Persicaria maculosa Peter Rubtzoff 1970-8-5 6300 Sonoma 5 mi. north of Sears Point Comment
  CAS-BOT-BC419428  Persicaria punctata Peter Rubtzoff 1955-8-28 2106 Sonoma Forestville Marsh Comment
  JEPS128227  Petrorhagia prolifera Roger Raiche 2000-5-4 076 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET5906166 Image available Phacelia distans L. S. Rose 1965-1 65021 Sonoma 1 mi N of Sonoma Comment
  UCD158786  Phacelia heterophylla subsp. virgata James A. Neilson Jr. 1974-6-1 2771 Sonoma Mayacmas Mountains, Geyser Rock, west of Whispering Pines, northeastern Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CDA256  Phacelia imbricata D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .267 Sonoma Cavedale Rd. Comment
  RSA201447  Phacelia imbricata subsp. imbricata J. T. Howell 1929-6-9 4302 Sonoma Two miles north of Sonoma. Comment
  RSA428022  Phacelia imbricata subsp. imbricata Christopher Davidson 1977-6-20 6019 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  UCD88336  Phalaris angusta H. S. Yates 1936-5-16 5617 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  CAS-BOT-BC258947  Phalaris aquatica G. DeNevers 1981-5-30 1404 Sonoma Pepperwood Ranch. 1st Canyons cutting EW on the E slope of Horse Hill Comment
  CAS-BOT-BC258954  Phalaris aquatica Mary P. Wells 1984-5-24 297 Sonoma Annadel State Park (near Santa Rosa) Comment
  UCR248887  Phalaris aquatica Peter Rubtzoff 1970-7-12 6283 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC258945  Phalaris aquatica Walter Knight; Irja Knight; J. T. Howell 1987-5-14 6387 Sonoma Llano Road near sewage treatment plant Comment
  UCD88174  Phalaris aquatica Javier Penalosa 1961-5-24 1602 Sonoma Pepper Road. .9 miles N of Petaluma - Valley Ford Road. Comment
  UCD88771  Phalaris californica H. S. Yates 1936-5-16 5618 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  CAS-BOT-BC265915  Phalaris lemmonii G. DeNevers; S. Kaza 1981-5-7 972 Sonoma 10510 Old Redwood Hwy. 2 mi NW of Windsor exit from 101, vacant lot by Healdsburg Rent-All Comment
  CAS-BOT-BC265917  Phalaris lemmonii John Thomas Howell 1947-6-5 23243 Sonoma Near Wright School 4 mi. W of Santa Rosa Comment
  UC23592  Phlox gracilis Alice King Apr 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC222474  Pholistoma Saichi Kawahara 1968-4-20 316 Sonoma 3 miles northeast of Lakeville Road 76 Comment
  UCD102206  Phoradendron leucarpum subsp. tomentosum Linda A. Bell 1975-5-24 185 Sonoma Mosquito Ridge Road, 17.5 miles East of junction with Auburn-Foresthill Road. 1310 Comment
  UC6100  Phoradendron villosum F. T. Bioletti 1891-12-25 Sonoma Sonoma Comment
  HSC100873  Photinia fraseri Peter Warner 2011-4-6 187 Sonoma Santa Rosa, Howarth Park, along foot-trails S of Lake Ralphine, N of Medica Ct. and Slate Dr. 112 Comment
  UC1977004  Phyllospadix scouleri H. W. Johansen 1963-5-26 1153 Sonoma Bodega Head. S. Shsore, Horseshoe C. Comment
  UC327  Phyllospadix scouleri Milo S. Baker 1899-6-28 Sonoma near mouth of Russian River Comment
  CAS-BOT-BC140616  Physocarpus capitatus Peter Rubtzoff 1951-6-12 282 Sonoma Northern half of Lower Marsh Comment
  POM139826  Physocarpus capitatus A. A. Heller 1902-6-4 5647 Sonoma Santa Rosa. Comment
  UCSC000358  Physocarpus capitatus H. S. Yates 1934-4-21 3801 Sonoma near Bodega - Duncan Mills 61 Comment
  CAS-BOT-BC202285  Pickeringia montana var. montana Walter Knight; Irja Knight 1963-12-27 475 Sonoma Summit, Pine Flat Rd. Comment
  CAS-BOT-BC173529  Picris echioides Peter Rubtzoff 1973-8-20 7221 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. 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
  OBI35913  Pinus muricata David J. Keil 1983-6-30 17208 Sonoma Stillwater Cove Regional Park Comment
  JEPS74967  Pinus ponderosa Tim Tunison Sonoma Sugarloaf Ridge Trail e of Kenwood (Sonoma Valley, 0.5 mi from site of nearest habitation and 100 yds recently built Vista Trail); Sugarloaf Ridge State Park 487 Comment
  CAS-BOT-BC137280  Piperia elegans Peter Rubtzoff 1952-6-3 1159 Sonoma Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC361422  Piperia elongata Greg de Nevers 1993-7-8 10472 Sonoma Field redacted by CAS, contact the data manager for more information 400 Comment
  CAS-BOT-BC376220  Plagiobothrys Greg de Nevers 1992-4-8 10099 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. At the Turtle Pond 475 Comment
  UCR254850  Plagiobothrys Greg de Nevers 1998-5-5 11229 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa; on Weimar Flat 400 Comment
  UCR280130  Plagiobothrys Peter Rubtzoff 1969-6-15 6095 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC155000  Plagiobothrys Peter Rubtzoff 1970-5-30 6237 Sonoma 5 miles north of Sears Point. Comment
  RSA783736  Plagiobothrys Peter Rubtzoff 1969-6-15 6089 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  RSA784980  Plagiobothrys bracteatus Peter Rubtzoff 1969-5-11 6040 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  RSA788370  Plagiobothrys bracteatus Peter Rubtzoff, H. A. Froebe 1971-5-30 6488 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Rd. Comment
  UCD33098  Plagiobothrys bracteatus Beecher Crampton 1966-5-10 7729 Sonoma Sonoma County, 6.5 miles north of Sonoma on State Hwy. 12, Glen Ellen station (CA dept. of forestry). Comment
  RSA369973  Plagiobothrys greenei L. S. Rose 1949-4-6 49028 Sonoma Western outskirts of Sonoma 30 Comment
  UCD120854  Plagiobothrys leptocladus Mary M. Hektner 1976-4-3 233 -A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  POM118682  Plagiobothrys nothofulvus Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  POM63825  Plagiobothrys nothofulvus A. A. Heller, H. E. Brown 1902-3-26 s.n. Sonoma Santa Rosa Creek. Comment
  RSA31970  Plagiobothrys reticulatus var. rossianorum A. A. Heller 1938-5-14 15081 Sonoma In a field just back of the sea north of Bay, Bodega Bay. Comment
  UC881350  Plagiobothrys stipitatus Alice Eastwood 1921-4-24 10261 Sonoma Santa Rosa Comment
  UCD37562  Plagiobothrys tenellus Beecher Crampton 1955-4-5 2409 Sonoma 3 miles west of Fulton, along Woolsey Road, just below Mount Olivet School. Comment
  RSA783847  Plagiobothrys undulatus Peter Rubtzoff 1976-6-5 8582 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UCD121046  Plagiobothrys undulatus Frederica Bowcutt 1984-6-23 443 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. West of Highway 1, approx. 1/3 mile north of Gerstle Cove. Salt Point State Park. 15 Comment
  SD88561  Plantago erecta Darley F. Howe 1972-5-3 4819 Sonoma Ocean bluff, 4.0 miles north of Ft. Ross. Comment
  CAS-BOT-BC258397  Plantago lanceolata Peter Rubtzoff 1959-6-20 4159 Sonoma Willow Creek Marsh. Comment
  JEPS7156  Plantago maritima var. californica W. L. Jepson 1931-7-19 15948 Sonoma near Scotta Creek (between Bodega Bay and mouth of Russian River) Comment
  UCD166337  Plantago subnuda Peter Rubtzoff 1968-7-29 5922 Sonoma Upper Salmon Creek Marsh. Comment
  SEINET3854582 Image available Platystemon Lewis S. Rose 1933-5-9 33157 Sonoma Bodega Bay. Comment
  UC1073296  Platystemon californicus George B. Rossbach 1955-3-19 279 Sonoma w rim Bodega Head; w rim of Bodega Head 45 Comment
  UC855269  Platystemon californicus Alice Eastwood 1921-4-24 10342 Sonoma Santa Rosa Comment
  CAS-BOT-BC92119  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-5-31 4509 Sonoma 6 miles north of Bodega Bay. Comment
  UC58284  Plectritis brachystemon A. A. Heller 1903-4-23 6603 Sonoma Fort Ross Comment
  CDA12905  Pleuropogon californicus G. F. Hrusa, R. Gross, A. Buckmann 1996-3-29 12739 Sonoma North Coast Biodiversity Arena; Napa Valley bottom, immediately S of Tubbs Lane, approx. 2 m. NW of Calistoga. Comment
  UCD37569  Pleuropogon californicus Beecher Crampton 1955-4-5 2418 Sonoma 3 miles northwest of Cotati, Laguna de Santa Rosa, Llano Road. Comment
  UCD90156  Pleuropogon californicus G. F. Hrusa; A. Buckman, R. Gross 1995-4-1 12032 Sonoma Lagunda de Santa Rosa. Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. 75 Comment
  CAS-BOT-BC260967  Pleuropogon californicus var. californicus John R. Reeder; Charlotte G. Reeder 1973-5-28 6197 Sonoma Ca. 12 miles S of Dixon, ca. 1 mile SW of Dozier Station 30 Comment
  CAS-BOT-BC260980  Pleuropogon californicus var. californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  CAS-BOT-BC260982  Pleuropogon californicus var. californicus David L. Morgan 1956-5-17 s.n. Sonoma Watmaugh Road 1/2 mile west of junction of Arnold Drive Comment
  RSA337035  Pleuropogon californicus var. californicus Paul But, Raymond Auyeung 1975-5-17 P 40 Sonoma On Llano Road, 1/4 mile from Highway 12, 2 miles northeast of Sebastopol. Comment
  UC1446221  Pleuropogon hooverianus Paul But with Peter Rubtzoff 1974-4-6 P 3 Sonoma 0.5 mi from Freestone (along Bohemian Hwy at Freestone Flat Road) Comment
  HSC100363  Pleuropogon hooverianus J. McRae 1998-5-21 Sonoma Sonoma Mtn. 0 Comment
  CAS-BOT-BC422342  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma Kenwood Marsh. Comment
  RSA0021491  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC255605  Poa annua Peter Rubtzoff 1954-6-6 1463 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC255607  Poa annua Mary P. Wells 1985-9-9 616 Sonoma At Friends House, Rincon Valley, Santa Rosa Comment
  RSA73959  Poa annua Milo S. Baker 1952-4-20 12397 Sonoma East side of Hwy 12, ca. 0.25 mi N. of Caliente Comment
  RSA796695  Poa annua Peter Rubtzoff 1989-4-30 9990 Sonoma Near Russian River, ca. 6 mi east of Guerneville, at 9850 River Road. Comment
  HSC10653  Poa bulbosa C. S. Chavez 1965-4-19 45 Sonoma 1 mi. E of Forestville on Hwy. 116 Comment
  UCD90681  Poa bulbosa G. F. Hrusa; R. Gross 1995-4-1 12034 Sonoma Foote Ranch at NE corner of Hwy. 128 and Ida Clayton Rd., Knights Valley. 150 Comment
  SEINET175724 Image available Poa douglasii Marcus E. Jones 1882-5-13 Sonoma Santa Rosa Comment
  UC903700  Poa howellii Milo S. Baker 1947-4-22 11698 Sonoma above Gray Ranch Hood Mt 304 Comment
  CAS-BOT-BC256038  Poa pratensis Peter Rubtzoff 1960-6-7 4458 Sonoma Austin Creek Marsh Comment
  CAS-BOT-BC256039  Poa pratensis Peter Rubtzoff 1957-5-4 3303 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC368027  Poa secunda Greg de Nevers 1998-6-10 11280 Sonoma Modini Mayacamas Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  CAS-BOT-BC243255  Poa secunda subsp. secunda G. DeNevers 1981-4-4 622 Sonoma Pepperwood Ranch. By the Studio Comment
  UC1132752  Poa secunda subsp. secunda H. S. Yates 1934-4-21 Sonoma near Bodego; Sebastopol Quadrangle Comment
  UC1132792  Poa secunda subsp. secunda H. S. Yates 1934-4-22 3852 Sonoma 2 mi s Mark West; Calistoga Quadrangle Comment
  CAS-BOT-BC243244  Poa secunda subsp. secunda C. F. Quibell 1980-3-22 1427 Sonoma Geysers Geothermal Area. Open meadow to SE of site knoll Comment
  CAS-BOT-BC244201  Poa trivialis Roxana S. Ferris; Laura Lorraine 1961-6-14 13542 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner Comment
  RSA144371  Poa trivialis Roxana S. Ferris, Laura Lorraine 1961-6-14 13542 Sonoma Willow Creek road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UCD92096  Poa trivialis Beecher Crampton 1955-6-17 2939 Sonoma 0.5 mile south of Guerneville. Comment
  UCD92135  Poa unilateralis Beecher Crampton 1971-6-6 8719 Sonoma Sonoma Coast State Park at Carmet. Comment
  UCD92150  Poa unilateralis P. B. Kennedy 1915-6-1 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC312677  Poaceae Peter Rubtzoff 1964-5-31 s.n. Sonoma Fitch Mountain Grove, near Healdsburg, along Russian River. Comment
  CDA13130  Pogogyne douglasii G. F. Hrusa, R. Gross 1996-6-3 13065 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
  UC1085297  Polemonium carneum J. Ewan 1935-5-13 9207 Sonoma 2 mi w Bodega (Bodega Bay road); w of Bodega, Bodega Bay road Comment
  CDA11013  Polycarpon tetraphyllum G. F. Hrusa 1993-3-14 10527 Sonoma North Coast Biodiversity Arena; NW base of Mt. St. Helena. Foote Ranch, approx 10 m N of Calistoga on Hwy 128. 152 Comment
  JEPS128235  Polygala californica Roger Raiche 2000-3-30 054 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC540806  Polygonum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7847 Sonoma Kenwood Marsh. Comment
  UCD166216  Polygonum Peter Rubtzoff 1970-5-30 6241 Sonoma 5 mi. north of Sears Point. Comment
  POM161244  Polygonum amphibium var. stipulaceum R. C. Bacigalupi 1958-6-18 s.n. Sonoma Beach at mouth of Salmon Creek, 2 miles N of Godega Bay Comment
  CAS-BOT-BC414118  Polygonum aviculare subsp. aviculare A. A. Heller 1902-6-11 5693 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  CAS-BOT-BC414281  Polygonum aviculare subsp. depressum G. DeNevers 1981-7-1 1737 Sonoma Pepperwood Ranch. In Pippindale Garden Comment
  JEPS87242  Polygonum douglasii Jack and Betty Guggolz 1991-10-9 1237 Sonoma 3/4 mi nnw Camp Meeker 195 Comment
  JEPS48950  Polygonum paronychia Hilda W. Grinnell 1934-2-26 Sonoma sand hills near Bodega Bay Comment
  UC465762  Polygonum parryi Brandegee June 1889 Sonoma Mt. St. Helena Comment
  UC1606995  Polypodium glycyrrhiza Margaret Rockwood and L. Esposito 1993-3-31 303 Sonoma Ca. 3 km NW of Bodega town (Fitzpatrick Lane) 30 Comment
  CAS-BOT-BC311839  Polypogon Peter Rubtzoff 1986-9-28 9743 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC328122  Polypogon Peter Rubtzoff 1964-7-14 5402 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC361407  Polypogon Greg de Nevers 1997-5-23 11006 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. In Three Hill vernal pool 457 Comment
  RSA0023111  Polypogon Peter Rubtzoff, Nancy Harrison 1974-9-7 7889 Sonoma Hinebaugh Creek in Rohnert Park, in creek bed under Commerce Blvd. bridge. 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
  UC50629  Polypogon interruptus H. P. Chandler 1900-5-25 680 Sonoma Bodega Bay Comment
  UCD51661  Polypogon interruptus Leo Koch 1940-6-5 1012 Sonoma behind Fountaingrove Vineyard, 3 miles north of Santa Rosa along Highway 101. Comment
  UCD36689  Polypogon interruptus Beecher Crampton 1955-6-17 2945 Sonoma 4.5 miles S of Cazadero. Comment
  CAS-BOT-BC237395  Polypogon monspeliensis John Thomas Howell; Walter & Irja Knight 1988-5-21 6225 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC237397  Polypogon monspeliensis Walter Knight; Irja Knight 1963-12-27 815 Sonoma Pine Flat Road. Circle 8 Ranch Comment
  CAS-BOT-BC237404  Polypogon monspeliensis Peter Rubtzoff 1951-8-19 642 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh Comment
  UCD91325  Polypogon monspeliensis Hursh 1919-5-12 X 3252 Sonoma Santa Rosa. Comment
  UCR218737  Polypogon monspeliensis George K. Helmkamp, E. A. Helmkamp 2010-6-4 16224 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  CAS-BOT-BC237616  Polypogon viridis David L. Morgan 1956-6-26 s.n. Sonoma Spring at Shell Beach, 0.25 mile S of Goat Rock, off State Highway 1 Comment
  UCD151138  Polystichum californicum James A. Neilson Jr. 1973-6-6 2966 Sonoma Mayacmas Mountains. The Geysers. Intermittent stream west of Geyser Canyon. (Elevation estimated using Google Earth by label maker.) 441 Comment
  SEINET11719958  Polystichum californicum Unknown 1987-1 70019 Sonoma W of Cloverdale, Hot Springs Rd area, Lake Somona near inundation point of Brush Creek 183 Comment
  SEINET6744750  Polystichum californicum Michener, Bioletti 1893-1 Sonoma Adobe Canon Comment
  CDA37328  Polystichum imbricans D. G. Kelch, Troy McGregor 2010-8-22 10 .334 Sonoma Geyser Peak Rd. Comment
  CAS-BOT-BC452163  Potamogeton diversifolius Peter Rubtzoff 1955-7-16 1970 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC267173  Potamogeton foliosus Peter Rubtzoff 1955-9-10 2133 Sonoma E Guerneville, near Guerneville, in a small pool in a Russian River Island Comment
  UCR244630  Potamogeton foliosus Peter Rubtzoff 1971-9-1 6667 Sonoma Spring Creek Reservoir area, east of Santa Rosa 87 Comment
  RSA800840  Potamogeton nodosus Peter Rubtzoff 1971-6-25 6552 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing. Comment
  CAS-BOT-BC454023  Potamogeton pectinatus Peter Rubtzoff 1970-8-5 6296 Sonoma 5 miles north of Sears Point. Comment
  RSA800893  Potamogeton pusillus Peter Rubtzoff 1973-8-27 7269 Sonoma Upper Green Valley Marsh area. Comment
  UC903040  Potentilla anserina subsp. pacifica Ethel Crum 1930-6-8 742 Sonoma one mi e Bodega Bay (bottom of gulch); e of Bodega Bay Comment
  CAS-BOT-BC141951  Potentilla anserina subsp. pacifica Peter Rubtzoff 1960-5-18 4386 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  RSA90487  Potentilla glandulosa Joe Mullin 1933-5-5 s.n. Sonoma Santa Rosa Creek Canyon Comment
  CAS-BOT-BC141601  Potentilla uliginosa John Thomas Howell 1947-6-26 23297 Sonoma Cunningham Marsh Comment
  JEPS128324  Prosartes hookeri Roger Raiche 2000-3-26 006 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  UCD36685  Prunella vulgaris Beecher Crampton 1955-6-17 2934 Sonoma 0.5 mile south of Guerneville. Comment
  JEPS62502  Prunella vulgaris var. lanceolata Alice King June 1897 Sonoma Healdsburg Comment
  UC1051657  Prunella vulgaris var. lanceolata Peter Kamb and Francia Chisaki 1950-6-16 1858 Sonoma 1 mi n Sousa Corners (nw of Sebastopol, Pitkin Marsh); Pitkin Marsh Comment
  CAS-BOT-BC154682  Prunus subcordata Stewart Wade 1927-4-1 s.n. Sonoma Healdsburg Comment
  UCD135197  Pseudognaphalium beneolens M. Barbour 1970-11-30 s.n. Sonoma Bodega Head. Comment
  CAS-BOT-BC356501  Pseudognaphalium beneolens Mary P. Wells 1988-9-7 967 Sonoma In a plant bed at Friends House, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC356928  Pseudognaphalium californicum G. DeNevers 1981-7-25 1872 Sonoma Pepperwood Ranch. In Garrison Canyon Comment
  UCD134982  Pseudognaphalium ramosissimum P. G. Connors 1994-8-10 329 Sonoma Bodga Marine Laboratory. Comment
  CAS-BOT-BC361620  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-31 182 Sonoma Magnolia Ave. in ditch - Petaluma Comment
  CAS-BOT-BC361622  Pseudognaphalium stramineum Volney Rattan No date on label s.n. Sonoma Guerneville Comment
  NY621796  Pseudotsuga menziesii B. Crampton 1960-10-10 5789 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
  UC1042434  Pseudotsuga menziesii var. menziesii Peter Rubtzoff 1951-8-18 636 Sonoma w branch of the Upper Marsh in a thicket on damp ground Pitkin Marsh, Upper Marsh (near Forestville) Comment
  CAS-BOT-BC176115  Psilocarphus Peter Rubtzoff 1963-7-14 5203 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  UCD166085  Psilocarphus Peter Rubtzoff 1971-6-25 6553 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  CAS-BOT-BC362074  Psilocarphus tenellus Greg de Nevers 1992-4-28 10119 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 475 Comment
  SEINET10479891  Pterostegia drymarioides A. Arthur Heller, H. E. Brown 1902-5-27 Heller s.n. 1902 Sonoma Bodega Bay on Sand Hills. From type station. Comment
  SEINET4335257  Pterostegia drymarioides K. Brandegee s.n. Sonoma Bodega Comment
  CAS-BOT-BC460851  Pyrola aphylla Volney Rattan 1877-1-1 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC466309  Pyrola picta Greg de Nevers 1991-7-9 9756 Sonoma Pepperwood Natural Reserve, 3450 Franz Valley Rd. 475 Comment
  RSA94346  Pyrus communis Peter Rubtzoff 1952-10-26 1332 Sonoma Pitkin Marsh, near Forestville, eastern branch of the Upper Marsh. Comment
  CAS-BOT-BC376277  Quercus Greg de Nevers 1990-11-8 9747 Sonoma Santa Rosa, County Administration Building 76 Comment
  UCR66548  Quercus X chasei G. Ledyard Stebbins 1943-6-18 3364 Sonoma 2.5 mi. north of Cotati on road to Sebastopol. Comment
  CDA31362  Quercus X eplingii D. G. Kelch, Ed Biffin 2010-5-3 10 .206-B Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCSB22673  Quercus agrifolia var. agrifolia McCarthy, Sharon 1965-4-16 Sonoma Approximately 0.5 mile north of bridge at Leveroni Rd., Sonoma 25 Comment
  UCD151139  Quercus berberidifolia James A. Neilson Jr. 1973-6-6 2959 Sonoma Mayacmas Mountains. The Geysers. Site IV. (Exact location of Site IV unknown. Elevation and coordinates very broadly estimated by label maker.) 441 Comment
  JEPS37398  Quercus douglasii W. H. Calhoun 1907-10-21 Sonoma Windsor Comment
  UCD46181  Quercus dumosa J. M. Tucker 1977-6-16 4395 Sonoma On Shurtleff Ranch off Chalk Hill Road to the east, ca. 4 miles (air-line) northeast of East Windsor (or ca. 10 miles, airline, north-northwest of Santa Rosa), Sonoma County, California. 121 Comment
  JEPS83643  Quercus durata R. Raiche 1988-1-19 80003 Sonoma Bummer Peak Area, Rockpile Rd Lake Sonoma Area 329 Comment
  UCSB34091  Quercus durata var. durata Nixon, Kevin 1978-12-27 Sonoma 3.3 mi north of Cloverdale on hwy 128 274 Comment
  SEINET13953407 Image available Quercus garryana G. Thomas Robbins 1940-1 307 Sonoma Rincon Ridge ca. 6 mi ne of Santa Rosa 168 Comment
  CDA21150  Quercus garryana var. garryana G. F. Hrusa, G. L. Stebbins 1993-10-3 11463 Sonoma Sugarloaf Ridge State Park; Nr. summit of Bald Mountain. 731 Comment
  UCD46072  Quercus garryana var. garryana Lewis S. Rose 1964-8-26 64066 Sonoma 6 miles ne of Penngrove; 365 Comment
  UC1042508  Quercus kelloggii Peter Rubtzoff 1951-8-18 635 Sonoma near Forestville (w branch of the Upper Marsh); Pitkin Marsh Comment
  UC338622  Quercus kelloggii unknown Mar 1888 Sonoma near Healdsburg (Warner's ranch) Comment
  UCD46673  Quercus kelloggii Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 73 Sonoma Sugarloaf Ridge State ParkAbout 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. Beginning on Hillside Trail. 381 Comment
  UCD46723  Quercus kelloggii G. F. Hrusa; R. Gross 1996-3-8 12651 Sonoma At NE edge of Douglas-Fir forest near intersection of Ida Clayton Rd. and Hwy 128. Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. 150 Comment
  UC1193239  Quercus lobata R. H. Neuns 1950-5-8 107 Sonoma 8 mi e Geyserville 579 Comment
  SEINET13953520 Image available Quercus lobata S. N. Stephenson 1979-1 Sonoma Sonoma, terminus of Wyatt Road 250 Comment
  UC1193235  Quercus wislizeni R. H. Neuns 1950-4-26 95 Sonoma 5 mi w The Geysers (Sulphur Creek Rd) 457 Comment
  UCD47597  Quercus wislizeni K. Cuff 1948-8-26 KC 58 Sonoma 5 miles north of Annapolis, Section 1, T. 11N, R. 14W. 426 Comment
  CDA31008  Quercus wislizeni var. frutescens D. G. Kelch, Troy McGregor 2010-8-22 10 .347 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  UCR255890  Ranunculus aquatilis Greg de Nevers 1990-3-26 9655 A Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UC9370  Ranunculus aquatilis var. capillaceus F. T. Bioletti 1892-1 Sonoma Comment
  POM118705  Ranunculus californicus Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma. Comment
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Jan 23 2011
  UCD95929  Ranunculus californicus Beecher Crampton 1973-5-5 8929 Sonoma Sonoma Coast State Park at Carment. Comment
  UCD95956  Ranunculus californicus P. B. Kennedy 1914-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC378678  Ranunculus californicus var. californicus Rimo Bacigalupi 1926-5-2 1372 Sonoma Cazadero Comment
  CAS-BOT-BC378696  Ranunculus californicus var. californicus V. Penalosa 1961-5-24 1579 Sonoma Unspecified Comment
  RSA733909  Ranunculus californicus var. crassifolius Chas. H. Lamoureux, J. M. Tucker, June McCaskill 1957-4-7 1192 Sonoma Duncan Point, Sonoma Coast State Park. 15 Comment
  CAS-BOT-BC378765  Ranunculus californicus var. cuneatus Walter Knight; Irja Knight 1964-2-27 530 Sonoma coastal bluff at Rocky Point a little south of Gualala Comment
  CAS-BOT-BC378767  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma common in moist soil in grassy places on and back of the bluff north of Bay, Bodega Bay Comment
  RSA31774  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma On the bluff N of Bay, Bodega Bay. Comment
  CAS-BOT-BC361405  Ranunculus lobbii Greg de Nevers 1994-3-18 10514 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. Weimar vernal meadow 457 Comment
  CAS-BOT-BC83409  Ranunculus lobbii Peter Rubtzoff 1972-3-31 6721 Sonoma Todd Road 1.4 mile from Highway 116 and 0.6 mile from Llano Road. Comment
  CAS-BOT-BC83412  Ranunculus lobbii J. Penalosa 1961-5-24 1571 Sonoma Upper Stemple Creek Marsh. Comment
  UC118281  Ranunculus lobbii Alice Eastwood 1893-4-26 Sonoma Sebastopol Comment
  RSA534577  Ranunculus muricatus Peter Rubtzoff 1957-4-28 3292 Sonoma Duncans Mills Marsh Comment
  UCD96242  Ranunculus muricatus Caitlin Lewis; William Mutch 1993-4-17 11 Sonoma 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. In opening of mixed evergreen forest adjacent to Sonoma Creek. 365 Comment
  CDA36950  Ranunculus occidentalis CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UC1057477  Ranunculus orthorhynchus var. bloomeri G. Thomas Robbins 1937-5-23 209 Sonoma about 10 mi w Santa Rosa; Vine Hill region, Pitkin Ranch Comment
  RSA3946  Ranunculus orthorhynchus var. bloomeri I. L. Wiggins 1932-3-12 5757 Sonoma roadside ditch, Knight's Valley Comment
  RSA94006  Ranunculus pusillus Peter Rubtzoff 1951-6-17 269 Sonoma Western branch of the Upper Marsh. Comment
  SDSU10124  Ranunculus uncinatus D. F. Howe 1972-5-2 4820 Sonoma Trail above Duncan Mills pond. Comment
  CAS-BOT-BC74199  Raphanus raphanistrum John H. Thomas 1976-6-16 18297 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  HSC6886  Raphanus sativus F. Demostene 1966-4-1 6 Sonoma 2 mi. E of Healdsburg 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-BC227427  Rhododendron occidentale G. F. Hrusa 1988-4-22 5567 Sonoma Cavedale Rd. between Hwy 12 and Hwy 29 300 Comment
  POM131866  Rhododendron occidentale Edward L. Greene 1894-6-17 s.n. Sonoma Mt. St. Helena. Comment
  UC22148  Rhododendron occidentale Edw. L. Greene 1894-6-7 Sonoma Mount St. Helena Comment
  CDA21383  Rhododendron occidentale var. occidentale G. F. Hrusa, M. Griffiths 1989-6-4 7116 Sonoma North Coast Ranges; Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. Comment
  CDA16153  Rhododendron occidentale var. occidentale R. Gross 1999-7-2 s.n. 1 Sonoma North Coast Ranges; NW side of Mt. St. Helena, seep below Ida Clayton Rd. (3 separate inds. on sheet.) 0 Comment
  RSA71061  Rhododendron occidentale var. paludosum L. S. Rose 1951-6-7 51013 Sonoma Pitkin Marsh, 5 miles N of Sebastopol. Comment
  CAS-BOT-BC111866  Rhynchospora alba John Thomas Howell; Hans Leschke 1945-5-30 20896 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111871  Rhynchospora alba John Thomas Howell; Hans Leschke 1945-5-30 20896 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111894  Rhynchospora californica John Thomas Howell 1945-8-14 21382 Sonoma Perry Marsh 182 Comment
  NY51372  Rhynchospora californica J. T. Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 mi N of Sebastopol. Comment
  RSA74058  Rhynchospora californica Milo S. Baker 1945-7-18 11112 Sonoma Pitkin Marsh, upper bog Comment
  JEPS83544  Rhynchospora globularis var. globularis Jack and Betty Guggolz 1987-6-9 891 Sonoma wet area at n end Pitkin Marsh (on what has been known as the Wilhoff property, now owned by Barry Samuels) Comment
  UC1026387  Rhynchospora globularis var. globularis John Thomas Howell 1945-7-18 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111926  Rhynchospora recognita John Thomas Howell 1947-6-26 23313 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC111930  Rhynchospora recognita John Thomas Howell 1945-7-18 21324 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111932  Rhynchospora recognita John Thomas Howell 1936-7-26 12678 Sonoma Pitkin Marsh, 5 miles n of Sebastopol. Comment
  SEINET13942321 Image available Ribes californicum A. A. Heller 2003-1 Sonoma Woods near Cazadero Comment
  CAS-BOT-BC93059  Ribes californicum var. californicum Greg de Nevers 1987-2-10 8126 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa. 400 Comment
  CAS-BOT-BC169005  Ribes divaricatum var. pubiflorum G. DeNevers 1981-5-2 908 Sonoma Conflluence of Leslie Creek and Mark West Creek, Pepperwood Ranch Comment
  UC73089  Ribes sanguineum var. glutinosum Milo S. Baker 1898-4-4 Sonoma near Sea View Comment
  RSA0019523  Ribes sanguineum var. glutinosum A. A. Heller, H. E. Brown 1902-3-21 5112 Sonoma Hills southeast of Santa Rosa Comment
  UCSB2662  Ribes sanguineum var. glutinosum Keator, Glenn 1959-4-1 Sonoma Near lumber mill; 1.8 miles north of Fort Ross monument; on highway 1 Comment
  UC35868  Rigiopappus leptocladus F. T. Bioletti 1893-5-27 Sonoma Hood's Peak Comment
  CAS-BOT-BC74699  Rorippa curvisiliqua Peter Rubtzoff 1958-8-16 3866 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC74703  Rorippa curvisiliqua Peter Rubtzoff 1961-5-24 4600 Sonoma Upper Stemple Creek Marsh. Comment
  CAS-BOT-BC74711  Rorippa curvisiliqua Peter Rubtzoff 1970-5-30 6242 A Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC74704  Rorippa curvisiliqua Peter Rubtzoff 1962-6-13 4913 Sonoma Americano Creek area. Pond near Petaluma Valley Ford road just south of Bloomfield. Comment
  CAS-BOT-BC376306  Rorippa sinuata Greg de Nevers 1992-5-13 10148 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Turtle Pond. 400 Comment
  CAS-BOT-BC368001  Rosa Greg de Nevers 1989-6-8 9075 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  UCD165110  Rosa Peter Rubtzoff 1973-9-9 7314 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC152673  Rosa californica L. R. Abrams 1916-7-4 5782 Sonoma Road between Petrified Forest and Mark West Co. Comment
  UC467669  Rosa californica V. King Chesnut Aug. 1889 Sonoma Santa Rosa Comment
  CAS-BOT-BC146773  Rosa gymnocarpa Irja Knight; Walter Knight 1964-11-15 782 Sonoma Hood's Peak on road to enroute to Johnson Lake Comment
  SD56749  Rosa gymnocarpa D. F. Howe 1963-7-2 Sonoma 3.5 mi. so.east of Guerneville on #12 99 Comment
  RSA63654  Rosa spithamea Milo S. Baker 1947-5-8 11755 Sonoma W slope of Hood Mt, burned chaparral, at top of Rose Butte. 244 Comment
  UCD92279  Rostraria cristata Beecher Crampton 1957-5-16 4038 Sonoma 3 miles SW of Cloverdale, Hot Springs Road. Comment
  CAS-BOT-BC262824  Rubus Peter Rubtzoff 1960-5-16 4357 Sonoma Duncans Mills Marsh; upper portion of the marsh. Comment
  CAS-BOT-BC262848  Rubus Peter Rubtzoff 1954-7-28 1591 Sonoma Guerneville Marsh; northwestern end of marsh. Comment
  RSA800403  Rubus Peter Rubtzoff 1964-6-3 800403 Sonoma Bodega Bay Marsh. Comment
  UCD166345  Rubus Peter Rubtzoff 1953-5-16 1354 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCD166349  Rubus Peter Rubtzoff 1954-8-11 1691 Sonoma Guerneville Marsh. Comment
  UC467858  Rubus spectabilis Katharine Brandegee June 1905 Sonoma Bodega Comment
  CAS-BOT-BC158723  Rubus ulmifolius Mary P. Wells 1985-7-1 527 Sonoma Bank of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC157170  Rubus ursinus Peter Rubtzoff 1951-6-30 291 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  UC666158 Image available Rubus ursinus S. W. Brown 1942-5-10 42004 Sonoma 2 mi n Ft. Ross State Historic Monument; Ft. Ross Comment
  CAS-BOT-BC157172  Rubus ursinus Alice S. M. McKenzie 1981-2-12 15 A Sonoma Calif. State Hwy. 1, marker 44.55 Comment
  CAS-BOT-BC166656  Rumex Peter Rubtzoff 1958-8-23 3917 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC173544  Rumex Peter Rubtzoff 1964-6-24 5387 Sonoma Coleman Marsh. Salmon Creek. Comment
  CAS-BOT-BC376293  Rumex Greg de Nevers 1995-8-1 10764 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Skovie 487 Comment
  CAS-BOT-BC166722  Rumex Peter Rubtzoff 1961-8-24 4707 Sonoma Fife Creek Marsh. 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
  UCD101040  Rumex acetosella P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC421851  Rumex conglomeratus Peter Rubtzoff 1951-6-30 309 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC164667  Rumex crispus Peter Rubtzoff 1954-6-6 1465 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC166746  Rumex fueginus Peter Rubtzoff 1958-9-27 4007 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road). Comment
  RSA783835  Rumex fueginus Peter Rubtzoff 1963-10-5 5286 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  CAS-BOT-BC166935  Rumex pulcher Peter Rubtzoff 1961-8-22 4689 Sonoma Fife Creek Marsh. Comment
  RSA783831  Rumex pulcher Peter Rubtzoff 1966-6-5 5751 Sonoma Laguna de Santa Rosa, area E of Cunningham (near Llano Road). Comment
  RSA698487  Rumex salicifolius var. montigenitus J. R. Bruff 1936-07 s.n. Sonoma Bodega Bay. 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
  UCD166485  Sagina Peter Rubtzoff 1964-6-24 5370 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC445779  Sagittaria latifolia Peter Rubtzoff 1958-7-26 3814 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UC463100  Salix breweri Milo S. Baker 1931-10-10 5615 Sonoma near confluence with Sonoma Cr. (above Los Guilicos Val.); Fitzsimmons Cr. Comment
  RSA534508  Salix exigua Peter Rubtzoff 1954-7-4 1531 Sonoma Austin Creek Marsh. Comment
  UC490515  Salix exigua var. hindsiana Joseph P. Tracy 1932-5-8 9899 Sonoma Geyserville; Northern Coast Ranges Comment
  CAS-BOT-BC107756  Salix hindsiana G. De Nevers 1981-5-20 1236 Sonoma Pepperwood Ranch - along Leslie Creek, 100 m above confluence with Mark West Creek 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
  UC1356332  Salix lasiandra subsp. lasiandra Theodore J. Crovello 1964-4-11 399 Sonoma a few mi. e. Bodga Bay (along CA Hwy. 1); Cheney Gulch, Cheney Creek Comment
  CAS-BOT-BC107089  Salix lasiolepis Mary P. Wells 1986-2-2 726 Sonoma north of Wild Moor Reach, The Sea Ranch Comment
  CAS-BOT-BC107100  Salix lasiolepis Peter Rubtzoff 1952-3-23 904 Sonoma Southern half of Lower Marsh Comment
  CAS-BOT-BC107253  Salix lasiolepis A. A. Heller 1902-3-10 5016 Sonoma Hills two miles southeast of Santa Rosa Comment
  UC453101  Salix lasiolepis W. A. Setchell 1931-7-31 18 Sonoma Bodega Bay; bottom of small canyon Comment
  UC482118  Salix lasiolepis Ball, Bracelin, Parks and Parks 1931-4-21 34 Sonoma ca. 25 km. n.w. of Calistoga (Maacama Creek); Maacama Creek Comment
  UC66163  Salix lasiolepis A. A. Heller 1902-3 5097 Sonoma e Santa Rosa; Santa Rosa Creek Comment
  POM281344  Salix lasiolepis var. bigelovii Carleton R. Ball, B. S. Ball 1933-5-6 2501 Sonoma 4 miles SW of Calistoga. On road to Petrified Forest and just over the Napa Co line. Comment
  RSA534505  Salix lasiolepis var. bigelovii Peter Rubtzoff, T. J. Crovello 1964-9-3 5498 Sonoma Brooks Gulch Marsh. Comment
  RSA534486  Salix lucida subsp. lasiandra Peter Rubtzoff, T. J. Crovello 1964-9-3 5496 Sonoma Bodega Harbor Marsh. Comment
  RSA534501  Salix lucida subsp. lasiandra Peter Rubtzoff 1962-5-5 4805 Sonoma Fife Creek Marsh. Comment
  RSA534563  Salix melanopsis Peter Rubtzoff 1970-9-2 6367 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC126186  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 342 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  CAS-BOT-BC126193  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  SBBG27421  Salix scouleriana Baker, C. R. Ball, H. Bracelin, Crum 1931-5-9 342 Sonoma 2 km E of Occidental, on Occidental grade Comment
  SD881  Salix scouleriana Baker, Ball, Bracelin, Crum 1931-5-9 342 Sonoma Two km east of Occidental, on Occidental Grade, arroyo bank Comment
  RSA90536  Salix scouleriana Milo S. Baker 1939-4-12 3428 -c Sonoma W of Occidental 0.5 mile Coleman Valley Rd Comment
  CAS-BOT-BC128913  Salix sitchensis A. A. Heller 1903-4-23 6602 Sonoma Fort Ross Comment
  CAS-BOT-BC128942  Salix sitchensis Peter Rubtzoff 1959-6-20 4162 Sonoma Willow Creek Marsh Comment
  JEPS86742  Salix sitchensis Jack and Betty Guggolz 1990-6-22 1076 Sonoma ca. 12 km. e Healdsburg (next to Redwood Creek just above its confluence with Maacamas Creek); Ferrari-Carano Ranch 73 Comment
  UC1199055  Salix sitchensis Joseph P. Tracy 1940-8-18 16696 Sonoma Mayacama Creek below Knight's Valley; Mayacama Creek 152 Comment
  UCSB10843  Salix sitchensis Baker, Milo; Ball, Carleton; Bracelin, H. 1931-5-9 Sonoma About 2 km. east of Bodega Bay, Sonoma County Comment
  CAS-BOT-BC366868  Salvia columbariae Greg de Nevers 1998-4-24 11192 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Northwest of High Hill, southwest of big bay 400 Comment
  POM63368  Salvia columbariae A. A. Heller, H. E. Brown 1902-4-4 s.n. Sonoma Hills east of Santa Rosa Comment
  CDA132  Salvia sonomensis D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .279 Sonoma Cavedale Rd. Comment
  CHSC21957  Salvia sonomensis Robert A. Schlising 1962-3-31 2114 Sonoma California Coast Range. Along Cavedale Road, NE of Agua Caliente. Comment
  POM126746  Salvia spathacea M. S. Baker 1904-05 s.n. Sonoma Hills south of Ocean View. Comment
  SEINET12329971  Sambucus caerulea F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -183 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  HSC100945  Sanicula tuberosa Peter Warner, Patricia Chan 2011-3-12 181 Sonoma Annadel State Park, Canyon Trail, ~200 m upslope from 'big bend' in trail, near Woodview Drive. 176 Comment
  SDSU7967  Satureja douglasii D. F Howe 1963-7-3 3589 Sonoma 20 miles north of junction with #12 on #1. Comment
  CAS-BOT-BC436885  Saxifraga mertensiana Milo S. Baker 1924-4-16 69 a Sonoma McDonald to Sea Highway Comment
  CAS-BOT-BC441176  Saxifraga mertensiana Ella Dales Cantelow 1939-4-10 2603 Sonoma 7 mi. e. of Seaview Comment
  SEINET12216689  Saxifraga mertensiana F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -152 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 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-BC283147  Schedonorus arundinaceus David L. Morgan 1956-5-13 s.n. Sonoma 1/2 mile west of Lakeville on Stage Gulch Road Comment
  CAS-BOT-BC111438  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1960-6-25 4522 Sonoma Laguna de Santa Rosa northeast of Graton, ca 1/2 mi north of Guernebille Rd. crossing. Comment
  CAS-BOT-BC111639  Schoenoplectus californicus Peter Rubtzoff 1966-8-18 5790 Sonoma Laguna de Santa Rosa ca. 1 mile ESE of Sebastapool. Comment
  RSA540067  Schoenoplectus californicus Peter Rubtzoff 1966-8-18 5790 Sonoma Laguna de Santa Rosa ca. 1 mile east-southeast of Sebastopol Comment
  CAS-BOT-BC111800  Schoenoplectus pungens var. badius Peter Rubtzoff 1955-8-20 2067 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC111802  Schoenoplectus pungens var. badius Walter Knight; Irja Knight 1963-8-13 176 Sonoma Horseshoe Cove Comment
  UCR248932  Scirpus maritimus Peter Rubtzoff 1961-9-20 4750 Sonoma Bodega Harbor Marsh 0 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
  UC1005694  Scoliopus bigelovii Frank W. Gould 1939-2-25 562 Sonoma canyon ca. 2 1/2 mi. s. Ft. Ross 30 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
  SEINET12058076  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -002 Sonoma WNW of Sebastapol, 0.2 mi S of Occidental Road on Furlough Road, Sturgeon's Mill 80 Comment
  RSA54039  Scribneria bolanderi J. T. Howell 1948-4-18 24209 Sonoma Hills east of Agua Caliente. Comment
  SEINET12332454  Scrophularia californica F. H. Utech 1988-1 88 -204 Sonoma 6 mi W of junction of Willow Creek Road & Coleman Valley Road on former, along Willow Creek 40 Comment
  CAS-BOT-BC417850  Sedella pumila Leo Koch 1940-4-24 848 Sonoma N of Agua Caliente Comment
  CAS-BOT-BC371431  Sedum radiatum subsp. radiatum Greg de Nevers 1997-4-17 10949 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC371442  Sedum radiatum subsp. radiatum Greg de Nevers 1998-4-26 11193 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Al Cuneo's property in Sec. 6 400 Comment
  JEPS48027  Sedum spathulifolium W. L. Jepson 1923-6-28 10017 Sonoma Kenwood , Kenwood (Sonoma Canyon) 243 Comment
  CAS-BOT-BC62201  Selaginella wallacei A. A. Heller 1902-3-10 5024 Sonoma Hills two miles east of Santa Rosa Comment
  CDA31297  Selaginella wallacei D. G. Kelch 2010-5-3 10 .188 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  CDA9639  Selaginella wallacei D. G. Kelch 2007-5-13 7 .3 Sonoma Bouverie Preserve; E of Hwy 12 near Glen Ellen. Comment
  UC726185  Selaginella wallacei A. A. Heller 1902-4-2 5201 Sonoma 10 mi from Santa Rosa (on Calistoga rd.) Comment
  SEINET10471225  Selaginella wallacei A. Arthur Heller 1902-3-10 Heller 5024 Sonoma Hills two miles east of Santa Rosa. Comment
  JEPS37219  Senecio aronicoides Willis L. Jepson 1893-5-4 Sonoma trail to summit, e central Sonoma County Napa River Basin, Mt. St. Helena Comment
  UC485215  Senecio aronicoides H. P. Chandler 1907-4-21 7528 Sonoma road from Glen Ellen to Oakville Comment
  UCD148366  Senecio minimus Peter Rubtzoff 1955-8-20 2056 Sonoma Bodega Harbor Marsh. Comment
  RSA247448  Senecio sylvaticus Peter Rubtzoff 1969-8-14 6135 Sonoma Coleman Marsh. Comment
  CAS-BOT-BC364678  Senecio vulgaris A. A. Heller; H. E. Brown 1902-3-16 5072 Sonoma Russian River, near Trenton Comment
  UC536019  Sequoia sempervirens W. A. Setchell and Victor Duran 1935-3-31 Sonoma garden of Mrs. Max Knittl Monte Rio Comment
  POM21700  Sequoia sempervirens A. A. Heller, H. E. Brown 1902-3-16 5080 Sonoma Russian River, Near Trenton Comment
  SEINET8714496 Image available Sequoia sempervirens L. Fallon 1939-1 s.n. Sonoma 15 miles west of Santa Rosa on Guerneville Hy. Comment
  CDA31828  Sesbania punicea C. Owens 2010-7-7 s.n. Sonoma In the vicinity of Santa Rosa on River Road. 0 Comment
  CAS-BOT-BC366891  Setaria Greg de Nevers 1997-9-29 11099 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  RSA0062818  Setaria Greg de Nevers 1992-6-17 10175 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. 305 Comment
  CAS-BOT-BC243603  Setaria parviflora Catherine Best 1983-10-12 907 Sonoma At the edge of Janine Road near Bodega Avenue west of Sebastopol. Comment
  CDA39792  Setaria parviflora Peter Warner 2013-8-12 295 Sonoma Green Valley Road, 0.15 miles east of junction with Bones and Maddocks Roads. Comment
  CAS-BOT-BC371430  Sherardia arvensis Greg de Nevers 1997-4-17 10948 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS54475  Sidalcea calycosa subsp. calycosa Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9314 Sonoma se Forestville (near eastern end of Templeman Road, Pitkin Marsh); Pitkin Marsh, se of Forestville 45 Comment
  POM210232  Sidalcea diploscypha H. E. Parks, S. T. Parks 1930-05 625 Sonoma Head of Alexander Valley Comment
  RSA79066  Sidalcea diploscypha E. K. Balls, L. W. Lenz 1952-5-8 17108 Sonoma 1.3 miles NE from Mark West Springs along road to Kellogg. Comment
  UCD116782  Sidalcea malviflora Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-20 038 A Sonoma near Bihler Point, Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD116786  Sidalcea malviflora Cynthia Hodges 1982-4-8 13 Sonoma 10 miles south of Healdsburg on Chalk Hill Road directly off Highway 128. 39 Comment
  CHSC3190  Sidalcea malviflora subsp. laciniata Dona Kingsford 1966-4-6 Sonoma 2.5 miles E of Bodega Bay on Tomales- Valley Ford Road. Comment
  UC1012940  Sidalcea malviflora subsp. laciniata C. L. Hitchcock 1952-6-4 19582 Sonoma on road to Petaluma about 2 mi e Sebastopol; e of Sebastopol on road to Petaluma Comment
  UC408411  Sidalcea malviflora subsp. laciniata I. J. Condit 1913-3-7 Sonoma Petaluma Comment
  CAS-BOT-BC251242  Silene Peter Rubtzoff 1959-6-20 4168 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC311803  Silene Peter Rubtzoff 1974-5-19 7444 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads, near the end of Hall Road. Comment
  UCD166326  Silene Peter Rubtzoff 1967-8-28 5860 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  JEPS50893  Silene californica Vina W. Krager 1924-5-18 Sonoma Bodega Comment
  UCR248744  Silene gallica Peter Rubtzoff 1974-5-26 7487 Sonoma Bennett Valley Road, 4.25 miles west of Glen Ellen Comment
  NY342629  Silene grandis A. Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  UCD135848  Silybum marianum Gerry North 1993-4 55 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
  CHSC78104  Sisyrinchium bellum David Cheetham 1998-6-26 27 Sonoma 125-150 ft. elevation. I street extension. 38 Comment
  RSA239774  Sisyrinchium californicum Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1090 Sonoma Pitkin-Jones Tree Farm, on Vine Hill Road north of junction with Guerneyville Road 9 miles west of Santa Rosa Comment
  UC429242  Smilacina racemosa H. P. Chandler 1907-4-21 7529 Sonoma road fr. Glen Ellen to Oakville Comment
  CAS-BOT-BC164681  Solanaceae Peter Rubtzoff 1951-9-3 741 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  CAS-BOT-BC164709  Solanum Peter Rubtzoff 1954-7-27 1577 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC164413  Solanum Peter Rubtzoff 1965-9-11 5649 Sonoma Russian River margin at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD166506  Solanum americanum Peter Rubtzoff 1958-8-9 3837 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  UCR279860  Solanum americanum Peter Rubtzoff 1965-8-22 5612 Sonoma North Coast Ranges, Russian River, Forest Hills 5.5 miles east of Guerneville 9 Comment
  UCD161247  Solanum furcatum James A Neilson Jr.; Teresa A. Sholars 1976-5-11 3711 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  CAS-BOT-BC164711  Solanum umbelliferum Peter Rubtzoff 1960-5-16 4358 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC354317  Solidago Peter Rubtzoff 1955-8-27 2097 Sonoma Bennett Mountain Lake. Comment
  SEINET11808818  Solidago californica W. Knight, Knight, I.; Knight, T.; Edwards, S. W. 1985-1 6357 Sonoma Pine Flat Road 305 Comment
  JEPS54471  Solidago elongata Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9318 Sonoma Pitkin Marsh 53 Comment
  POM232056  Solidago spathulata Roxana S. Ferris 1937-8-19 9378 Sonoma 1.5 miles north of Fort Ross on State Highway 1. Comment
  UCD136065  Solidago spathulata G. F. Hrusa; G. L. stebbins, J. McCaskill 1993-9-14 11419 Sonoma along Cavedale Road approximately 2.7 miles east of Highway 12. 400 Comment
  UCD136069  Solidago spathulata G. F. Hrusa; G. L. stebbins, J. McCaskill 1993-9-14 11419 Sonoma along Cavedale Road approximately 2.7 miles east of Highway 12. 400 Comment
  CAS-BOT-BC365265  Solidago velutina subsp. californica G. DeNevers 1981-7-28 1875 Sonoma Pepperwood Ranch. E side of Leslie Road, 40 miles S of the 1st bridge 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-BC173831  Soliva sessilis Peter Rubtzoff 1960-5-16 4341 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC173832  Soliva sessilis Peter Rubtzoff 1971-5-8 6444 Sonoma Eastern foothills of Sonoma Mtns., on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  CAS-BOT-BC365957  Soliva sessilis G. DeNevers 1981-4-30 888 Sonoma Pepperwood Ranch. At Pippindale Garden. Also at Garrison House Comment
  CAS-BOT-BC365963  Soliva sessilis John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54672 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC164029  Sonchus Peter Rubtzoff 1955-8-20 2062 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC236594  Sorghum halepense G. DeNevers 1981-6-26 1664 Sonoma Along River Road between Fulton and Mirabel Park, Russian River area Comment
  CAS-BOT-BC236636  Spartina foliosa Peter Rubtzoff 1963-8-17 5219 Sonoma Near Petaluma River, just east of Petaluma Comment
  UCD166481  Spergula arvensis Peter Rubtzoff 1962-5-25 4837 Sonoma Laguna de Santa Rosa area, northeast of Graton, east of Laguna Road. Comment
  CAS-BOT-BC390051  Spergula arvensis Walter Knight; Irja Knight 1963-12-25 432 Sonoma Magnolia & Marshall Aves. Comment
  CAS-BOT-BC320501  Spergularia Peter Rubtzoff; Nancy Harrison; Walter Lennon; Marion Weiger 1974-5-11 7399 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC390974  Spergularia marina Walter Knight; Irja Knight 1963-9-29 232 Sonoma Near railroad bridge over Petaluma River ca. 1 mi. s. of Petaluma Comment
  CAS-BOT-BC390728  Spergularia rubra Alice Eastwood; John Thomas Howell 1936-5-19 2497 Sonoma Santa Rosa Comment
  CAS-BOT-BC390734  Spergularia rubra G. DeNevers 1981-6-4 1432 Sonoma Pepperwood Ranch. In Garrison yard Comment
  UCR254753  Spiranthes porrifolia Peter Rubtzoff 1969-6-27 6103 Sonoma 6.5 miles NE of Penngrove on Lichau Road 427 Comment
  CAS-BOT-BC502054  Stachys Peter Rubtzoff 1964-5-20 5303 Sonoma Brooks Gulch Marsh Comment
  CAS-BOT-BC502060  Stachys Peter Rubtzoff 1974-6-9 7584 Sonoma Upper Green Valley Marsh Comment
  UCD160823  Stachys rigida James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3371 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  SEINET9333111  Stachys rigida var. quercetorum John Nelson, Wnek, R. 2000-3-7 20940 Sonoma Coleman Beach Comment
  UCD126030  Stachys rigida var. rigida J. Adams; J. Weick 1993-5-8 283 Sonoma 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. Sugarloaf Ridge State Park. Comment
  CAS-BOT-BC175334  Stellaria borealis subsp. sitchana Peter Rubtzoff 1951-6-30 307 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC251170  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-7-9 1938 Sonoma Forestville Marsh. Comment
  UC465523  Stellaria littoralis Katharine Brandegee 1905-1 Sonoma Bodega Point Comment
  CAS-BOT-BC251172  Stellaria media Peter Rubtzoff 1958-8-16 3883 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC293753  Stellaria media Peter Rubtzoff 1960-5-18 4380 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC394957  Stellaria media Walter Knight; Irja Knight 1963-12-25 430 Sonoma Waste places - Marshall & Magnolia Aves., Petaluma Comment
  CAS-BOT-BC397764  Stellaria media A. A. Heller 1902-6-10 1041 Sonoma Santa Rosa Comment
  UCD151227  Stephanomeria virgata James A. Neilson Jr. 1974-5-1 3119 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
  SACT002404  Stipa pulchra M. Wiesendanger 1927-5-5 Sonoma Comment
  UCD161864  Streptanthus James A. Neilson Jr. 1979-6-26 3976 Sonoma Mayacmas Mountans. About 2 1/2 miles northwest of Socrates Mine, 1/4 mile south of highest knoll above the Geysers on ridge that divides Big and Little Sulphur Creeks. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JEPS97636  Streptanthus barbiger Annetta M. Carter 1947-5-30 1843 Sonoma 2 mi. E of Occidental. Comment
  UC956504  Streptanthus barbiger Freed W. Hoffman 1948-6-1 2334 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UC963921  Streptanthus barbiger Milo S. Baker 1947-5-30 11775 Sonoma along grade ca 2 mi ne Occidental; North Bay Counties, Harrison Grade Comment
  UCD115943  Streptanthus barbiger Roger Raiche 1984-6-10 RR 40212 Sonoma 8.6 miles west on Hot Springs Road from its origin at Rt. 101 near Cloverdale, across from Dry Creek. 198 Comment
  CAS-BOT-BC61215  Streptanthus brachiatus Lawrence F. LaPre 1985-6-25 s.n. Sonoma Around Socrates Mine, west of Pine Flats Road. Comment
  UCD168162  Streptanthus brachiatus James Neilson 1977-3-28 3856 Sonoma Mayacmas Mountains, Location 8, US Geothermal 1. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC956618  Streptanthus brachiatus subsp. brachiatus Freed W. Hoffman 1949-7-6 2871 Sonoma e. Pine Flat (ridge near contact Mine, on Sonoma-Lake co. line); North Coast Ranges 914 Comment
  UC1292752  Streptanthus glandulosus Freed W. Hoffman 1947-5-12 1052 Sonoma Camp Meeker North Coast Ranges Comment
  UC1292748  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-24 3361 Sonoma trail from Gray Creek to the Island North Coast Ranges (headwaters of 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
  UC985967  Streptanthus glandulosus subsp. secundus Freed W. Hoffman April, 1948 2701 Sonoma Gabe's Rock North Coast Range, Poole Ridge (1 mi nw of Guerneville) Comment
  UC1292749  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-6-25 2909 Sonoma Hart Hill gate on road from Cazadero along Morhardt Ridge to Happy Hills Farm North Coast Ranges 441 Comment
  UC483689  Streptanthus glandulosus subsp. secundus Milo S. Baker 1932-5-8 5916 Sonoma 5 mi n Ft. Ross; Salt Point 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
  UC1292737  Streptanthus morrisonii Freed W. Hoffman 1947-6-4 1029 Sonoma Red Slide, Bargeman Creek North Coast Ranges Comment
  UC1292741  Streptanthus morrisonii Freed W. Hoffman 1946-9-26 1025 Sonoma Layton Mine, Austin Creek North Coast Ranges Comment
  UC1292745  Streptanthus morrisonii Freed W. Hoffman 1950-6-17 3378 Sonoma Steelhead Gulch North Coast Ranges Comment
  UC1751203  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1947-5-30 1030 Sonoma Layton Mine, Austin Creek North Coast Ranges Comment
  CAS-BOT-BC245858  Symphoricarpos Peter Rubtzoff 1974-6-2 7530 Sonoma Upper Green Valley Marsh Comment
  UCD166489  Symphoricarpos Peter Rubtzoff 1958-7-19 3760 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  POM188467  Symphoricarpos mollis Marcus E. Jones 1931-7-5 29056 Sonoma West of Cloverdale. Comment
  UC353794  Symphoricarpos mollis Milo S. Baker Jun 1928 3168 a Sonoma e side Los Guilucos Valley (road to Youngman's) Comment
  CAS-BOT-BC97829  Symphyotrichum chilense L. R. Abrams 1907-8-1 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC98568  Symphyotrichum lentum Peter Rubtzoff 1958-9-6 3971 Sonoma Laguna de Santa Rosa north of cunningham (nr. Todd Rd.) - Sonoma County Marshes Comment
  CAS-BOT-BC98571  Symphyotrichum lentum Peter Rubtzoff 1961-9-6 4734 Sonoma Laguna de Santa Rosa area northeast of Graton - Sonoma County Marshes Comment
  CAS-BOT-BC99378  Symphyotrichum subspicatum Peter Rubtzoff 1958-8-31 3960 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC221965  Taeniatherum caput-medusae D. E. Breedlove 1980-6-27 44732 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC221967  Taeniatherum caput-medusae G. DeNevers 1981-5-15 1204 Sonoma Pepperwood Ranch. Hansel's Lake Comment
  UC1103198  Taeniatherum caput-medusae Joseph P. Tracy 1935-7-7 14049 Sonoma on road between the Geysers and Geyserville (Northern Coast Ranges); Northern Coast Ranges 609 Comment
  CAS-BOT-BC157675  Taraxacum Peter Rubtzoff 1958-4-26 3587 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD148394  Taraxacum Peter Rubtzoff 1958-4-26 3587 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD166140  Taraxia ovata Peter Rubtzoff 1969-5-24 6059 Sonoma Vernal pool, 6.5 miles northeast of Penngrove, on Lichan Road. 427 Comment
  UCD107049  Taraxia ovata C. Wistrom-Number 1996-4-6 21 Sonoma Healdsburg 1601 Dry Creek Road. 48 Comment
  UCD167336  Taraxia ovata James A. Neilson Jr. 1981-3-8 3984 Sonoma Mayacmas Mountains. Along Healsderg Geysers Rd. 1 mi. south Bragus Ranch. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CDA3894  Teesdalia coronopifolia Chas F. Quibell 1977-3-7 1392 Sonoma Western edge of Santa Rosa, southwest of intersection of Fulton and Piner Roads. 0 Comment
  CAS-BOT-BC447464  Tellima grandiflora A. A. Heller 1903-4-23 6612 Sonoma Fort Ross Comment
  UC1127670  Tellima grandiflora H. S. Yates 1934-4-21 3789 Sonoma near Bodega; Sebastopol Quad. 60 Comment
  UC58232  Tellima grandiflora A. A. Heller 1903-4-23 6612 Sonoma Fort Ross Comment
  CAS-BOT-BC366874  Thalictrum polycarpum Greg de Nevers 1998-4-27 11200 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  CAS-BOT-BC399885  Thalictrum polycarpum Peter Rubtzoff 1960-6-7 4448 Sonoma Austin Creek Marsh 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
  POM150511  Thalictrum polycarpum A. A. Heller, H. E. Brown 1902-4-18 s.n. Sonoma Windsor. Comment
  CAS-BOT-BC262979  Thermopsis Peter Rubtzoff 1965-5-8 5527 Sonoma Atascadero Creek Marsh. Comment
  POM127141  Thermopsis californica var. californica M. S. Baker 1899-05 s.n. Sonoma Forestville Comment
  RSA800061  Thermopsis californica var. californica Peter Rubtzoff 1965-5-8 5527 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC66818  Thysanocarpus curvipes A. A. Heller; H. E. Brown 1902-3-21 5114 Sonoma Hills southeast of Santa Rosa. Comment
  CAS-BOT-BC66827  Thysanocarpus curvipes Ira L. Wiggins 1949-4-30 12069 A Sonoma 4 miles west of Calistoga. Comment
  CAS-BOT-BC66805  Thysanocarpus curvipes John Thomas Howell 1931-4-4 6177 Sonoma Santa Rosa Canyon. Comment
  CAS-BOT-BC66814  Thysanocarpus curvipes Karl H. Rechinger; J. T. Howell 1953-4-12 s.n. Sonoma Hills north of Sonoma. Comment
  UC117272  Thysanocarpus curvipes K. Brandegee April 1889 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC67339  Thysanocarpus radians Karl H. Rechinger 1953-4-12 s.n. Sonoma Hills north of Sonoma. Comment
  UC11051  Thysanocarpus radians Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  UC14525  Tiarella trifoliata var. unifoliata W. C. Blasdale 1896-7-19 Sonoma Cazadero Comment
  UC570910  Tiarella trifoliata var. unifoliata H. L. Mason 1928-7-11 4888 Sonoma Canyon 2 mi n Fort Ross; n of Fort Ross Comment
  UC1101052  Tofieldia occidentalis subsp. occidentalis Herbert L. Mason 1946-7-4 12887 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  CAS-BOT-BC371426  Torilis arvensis Greg de Nevers 1996-6-3 10825 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD160853  Torilis arvensis James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3300 Sonoma Mayacmas Mountains, ca. 1/4 mile south of 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
  HSC101444  Torreya californica Richard Spjut, Peter Baye 2010-6-21 16713 Sonoma Fuller Creek near jct. with High-Low Rd. and South Brach Rd., east of Annapolis Rd 91 Comment
  CDA8947  Tracyina rostrata J. T. Howell 1967-6-17 42599 Sonoma Near ranch house on Arthur E. Cooley ranch at forks of Dry & Galloway Creeks. Northern Sonoma County. Comment
  UCD136893  Tragopogon porrifolius Gerry North 1993-4 36 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At lower camping area, 50 m E of foot bridge. 365 Comment
  CAS-BOT-BC519552  Triantha occidentalis subsp. occidentalis Peter Rubtzoff 1951-7-14 466 Sonoma Sonoma Comment
  UC762795  Trichostema laxum R. F. Hoover 1942-7-6 5911 Sonoma ridge S of The Geysers Comment
  UCLA54892  Trichostema laxum Marcus E. Jones 1931-7-5 Sonoma The Geysers Comment
  CAS-BOT-BC166775  Trifolium Peter Rubtzoff 1974-4-17 7376 Sonoma Upper Green Valley Marsh. Comment
  RSA785000  Trifolium Peter Rubtzoff, Nancy Harrison 1978-5-20 9188 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC173557  Trifolium Peter Rubtzoff 1974-5-18 7418 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173650  Trifolium Peter Rubtzoff 1974-5-11 7403 Sonoma Laguna de Santa Rosa east of Sebastopol (south of Hwy. 12 crossing). Comment
  SEINET5501407 Image available Trifolium Sally Walker 1983-1 s.n. Sonoma 4 mi W of Occidental Comment
  CAS-BOT-BC376246  Trifolium albopurpureum Greg de Nevers 1995-5-31 10737 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  SEINET7096777  Trifolium albopurpureum var. dichotomum A. G. Vestal 1955-5-7 s.n. Sonoma Facendini Lane.Ca 1 mile east of Occidenta. NAD27, 38.4070? deg. , -122.9289?_ (converted to WGS84) UTM Zone 10, 506210mE, 4250769mN. Comment
  OBI12721  Trifolium amoenum Robert F. Hoover 1969-1 Sonoma Comment
  UC726771  Trifolium amoenum A. A. Heller 1940-5-17 15636 Sonoma 2 mi w Valley Ford (State Hwy 1) Comment
  UC188464  Trifolium barbigerum J. W. Congdon 1880-5-9 Sonoma Petaluma Comment
  UC630863  Trifolium barbigerum P. B. Kennedy June, 1915 Sonoma Del Mar northern county Comment
  UCD165148  Trifolium barbigerum Peter Rubtzoff 1974-5-18 7426 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD165149  Trifolium barbigerum Peter Rubtzoff 1974-5-18 7427 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UC165624  Trifolium bifidum var. decipiens Milo S. Baker 1898-5-7 641 Sonoma Glenn Ellen Comment
  UCSC008685  Trifolium buckwestiorum Randall Morgan 2008-6-4 4896 Sonoma Near Santa Rosa Comment
  JEPS65732  Trifolium depauperatum var. truncatum Milo S. Baker 1934-3-27 7583 Sonoma near vernal pool (Bennett Valley) Comment
  UCD165126  Trifolium dubium Peter Rubtzoff 1974-4-17 7374 Sonoma Upper Green Valley 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
  UCSB50222  Trifolium fucatum Gray, John 1976-5-1 Sonoma Bluffs on Duncan's Landing peninsula, Sonoma Coast State Beaches; T6N R11W 15 Comment
  UCD38690  Trifolium hirtum Beecher Crampton 1957-5-16 4037 Sonoma 2 miles SW of Cloverdale, Hot Springs Road. Comment
  UCD109139  Trifolium hydrophilum P. G. Connors 1996-5-6 364 Sonoma 8 km S of Sonoma, W of Sonoma Creek, Viansa Wetlands. Comment
  UC16904  Trifolium incarnatum unknown 1894-5-4 Sonoma Lytton Springs Healdsburg Comment
  UC1177072  Trifolium microcephalum Peter H. Raven 1951-4-22 2782 Sonoma e Agua Caliente (hills) Comment
  CAS-BOT-BC361358  Trifolium microcephalum Greg de Nevers 1997-4-16 10939 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  UCD111449  Trifolium microcephalum R. Tofsrud 1948-5-1 s.n. Sonoma Santa Rosa. Comment
  UCD165137  Trifolium microdon Peter Rubtzoff 1974-5-18 7421 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD33225  Trifolium microdon Beecher Crampton 1967-5-15 7926 Sonoma Sonoma County, Lytton. Comment
  JEPS128303  Trifolium obtusiflorum Roger Raiche 2009-4-30 028 .09 Sonoma The Cedars. Lower Russian River, East Austin Creek watershed. Comment
  UC85321  Trifolium obtusiflorum Michener and Bioletti 1895-6-1 Sonoma Kenwood Comment
  POM21435  Trifolium oliganthum A. A. Heller, H. E. Brown 1902-4-15 5296 Sonoma Santa Rosa Creek Comment
  UCD147006  Trifolium tomentosum Robert E. Preston 2011-4-28 2851 Sonoma Sonoma, in vacant lot N of MacArthur St, between 4th St and Hayes St. 21 Comment
  UCSC006256  Trifolium variegatum Randall Morgan 1995-6-8 2753 Sonoma Petaluma, Field opposite Lincoln School on Wilson Hill Rd. near Petaluma Rd. Comment
  JEPS86333  Trifolium variegatum var. rostratum Jack and Betty Guggolz 1988-5-4 924 Sonoma Llano Marsh Comment
  RSA19276  Trifolium wormskioldii Jens Clausen 1935-5-24 1091 Sonoma 6.2 miles south of Jenner. Comment
  RSA582648  Trifolium wormskioldii Jens Clausen 1935-5-24 1091 Sonoma 6.2 miles south of Jenner. Comment
  SD40319  Trifolium wormskioldii Edith A. Purer 1932-7-24 4090 Sonoma Near Bridge Bay Comment
  UCD165156  Trifolium wormskioldii Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC451946  Triglochin maritima J. W. Congdon 1880-4-13 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC520845  Trillium albidum Greg de Nevers 1993-3-28 10335 Sonoma Pepperwood Natural Preserve: 3450 Franz Valley Road, T9N, R8W, Sec. 35 and surrounding sections. ALong Mark West Creek and Leslie Road 304 Comment
  CAS-BOT-BC520847  Trillium albidum J. W. Congdon 1880-3-1 s.n. Sonoma Near Santa Rosa Comment
  SEINET12051461  Trillium albidum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -263 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  SEINET12048688  Trillium ovatum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -158 Sonoma ca 5 mi E of Bridgehaven on Willow Creek Road 145 Comment
  CAS-BOT-BC521306  Trillium rivale A. A. Heller; H. E. Brown 1902-3-22 5127 Sonoma West of Sebastopol Comment
  SEINET7075561  Triphysaria eriantha 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
  JEPS77250  Triphysaria eriantha subsp. eriantha Robert M. Lloyd 1963-4-24 2389 Sonoma at Highway 12 and road to Oakdale 7.8 mi n Sonora 152 Comment
  JEPS19394  Triphysaria versicolor subsp. faucibarbata G. Thomas Robbins 1937-6-6 238 Sonoma along roadside near Bodega Bay; near Bodega Bay Comment
  UC185474  Triphysaria versicolor subsp. faucibarbata Katharine Brandegee May 1905 Sonoma Sebastopol Comment
  HSC20865  Triphysaria versicolor subsp. faucibarbata Anonymous 1957-4-13 77 Sonoma 1 mi. N of El Verano Comment
  SBBG68603  Triphysaria versicolor subsp. faucibarbata H. E. Parks 1920-5-9 631 Sonoma Knights Valley Comment
  UC1042399  Triphysaria versicolor subsp. versicolor Lewis S. Rose 1948-5-1 48097 Sonoma Valley Ford 13 Comment
  UC726290  Triphysaria versicolor subsp. versicolor A. A. Heller 1930-5-14 15083 Sonoma back of the bluff Bodega Bay (along the roadside near the town of Bay); back of bluff n of Bodega Bay Comment
  UCD93492  Trisetum canescens Beecher Crampton 1953-5-19 1297 Sonoma Sonoma County, 5 miles west of Calistoga, on Highway 128, at Napa County line. Comment
  UCD93498  Trisetum canescens Beecher Crampton 1955-6-17 2950 Sonoma 4.5 miles S of Cazadero. Comment
  UC1222814  Triteleia hyacinthina Joseph P. Tracy 1950-5-24 18686 Sonoma where the Knight's Valley Road enters Alexander Valley and leaves Mayacamas Creek; , Alexander Valley Comment
  CAS-BOT-BC522365  Triteleia hyacinthina Peter Rubtzoff; R. Bacigalupi 1971-6-10 6527 Sonoma On southside of W. Railroad Avenue between Fwy 101 and Stony Point Road Comment
  CAS-BOT-BC522367  Triteleia hyacinthina H. C. Cantelow 1936-5-3 1326 Sonoma N of Shellville Comment
  RSA264776  Triteleia hyacinthina Peter Rubtzoff 1971-6-5 6511 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Road. Comment
  UC421767  Triteleia hyacinthina R. L. Pendleton 1906-5-24 356 Sonoma Kenwood Saratoga 144 Comment
  UC72473  Triteleia laxa Milo S. Baker 1898-4-23 580 Sonoma Santa Rosa Creek Canyon Comment
  SEINET12049783  Triteleia laxa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -151 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 80 Comment
  SEINET12050340  Triteleia laxa J. T. Vale 1988-1 s.n. Sonoma Skaggs Springs, road between Sonoma Lake and Annapolis Rd 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
  UC1041014  Triteleia peduncularis J. W. Congdon 1880-5-3 Sonoma Santa Rosa Comment
  CAS-BOT-BC527971  Triteleia peduncularis Peter Rubtzoff; R. Bacigalupi 1971-6-10 6526 Sonoma Grassy flat on South side of W. Railroad Ave. between Fwy. 101 and Stony Point Rd. Comment
  UC335173  Tropidocarpum gracile Hy. Edwards Apr 1877 139 Sonoma Skaggs Spr. Comment
  RSA540096  Typha angustifolia Peter Rubtzoff 1971-7-9 6592 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC208025  Ulex europaeus A. A. Heller; H. E. Brown 1902-3-22 5126 Sonoma Among redwood trees West of Sebastopol Comment
  CAS-BOT-BC208027  Ulex europaeus Mrs. H. C. Cantelow 1937-3-25 s.n. Sonoma North of Bodega Comment
  CHSC997  Ulex europaeus M. Anthony 1953-3-9 Sonoma Comment
  POM277662  Ulex europaeus A. A. Heller, H. E. Brown 1902-3-22 s.n. Sonoma Among Redwood Trees W of Sebastopol Comment
  SD69963  Ulex europaeus Darley Howe 1968-5-21 4520 Sonoma 3.7 miles south of Bodega Bay on route 1 Comment
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Feb 6 2013
  UCD164987  Ulmus Peter Rubtzoff; Nancy Harrison, Ruth Hass 1974-8-31 7854 Sonoma Kenwood Marsh. Comment
  RSA39873  Umbellularia californica P. A. Munz 1947-10-9 12209 Sonoma 1.5 miles northeast of Armstrong Redwoods State Park. 91 Comment
  SEINET5339110  Umbellularia californica L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa. Comment
  SEINET9362232  Umbellularia californica Unknown 1990-5-4 Sonoma Sonoma Comment
  CAS-BOT-BC403986  Urtica dioica subsp. gracilis Walter Knight; Irja Knight 1964-2-27 556 Sonoma Ca. 2 mi S. Gualala on highway #1 Comment
  SEINET14053332  Urtica dioica subsp. holosericea Duaccares Ueills 1943-1 Sonoma roadside Comment
  UC55257  Utricularia gibba Milo S. Baker Nov 1898 Sonoma ditch 3 mi. s.e. Santa Rosa Comment
  CAS-BOT-BC391315  Vaccaria hispanica F. G. Krauss 1894-5-1 s.n. Sonoma Mountains near Calistoga Comment
  CAS-BOT-BC193385  Vaccinium ovatum J. W. Congdon 1880-10-24 s.n. Sonoma Near Guerneville Comment
  CAS-BOT-BC193387  Vaccinium ovatum Peter Rubtzoff 1953-5-17 1386 Sonoma Forested hills south of Guerneville, Neeley Mill area. Comment
  UC1121134  Vaccinium ovatum E. Armstrong 1934-3-26 948 Sonoma Camp Meeker Sebastopol Quad. 91 Comment
  UC419732  Vaccinium parvifolium Mrs. H. P. Bracelin 1930-7-27 22 Sonoma 1 mi N of Fort Ross Comment
  CAS-BOT-BC76165  Vancouveria planipetala J. W. Congdon 1892-5-30 s.n. Sonoma Cazadero. Comment
  UC1479609  Vancouveria planipetala Roy Y. Berg 1964-5-10 RYB 8096 Sonoma along Hwy 12 Russian River Valley 1 mi below sideroad to Occidental; Russian River Valley Comment
  HSC15731  Veratrum fimbriatum C. B. Wolf 1927-9-2 1350 Sonoma 1.0 mi. S of Gualala River Comment
  CDA15998  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15678 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. with benches above. Comment
  CDA16002  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15682 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  CDA5686  Verbena bonariensis var. conglomerata Anita Noldeke 1961-5-14 Sonoma Sebastopol. 0 Comment
  UC104852  Verbena lasiostachys var. lasiostachys Alice Eastwood 1900-5-8 Sonoma Knight's Valley Comment
  UC25159  Verbena lasiostachys var. scabrida J. Burtt Davy 1894-12-9 865 Sonoma Kenwood Comment
  CAS-BOT-BC164399  Veronica Peter Rubtzoff 1970-4-19 6211 Sonoma Forest Hills, 5.5 mi. east of Guerneville at 9981 Old River Road. Comment
  JEPS66218  Veronica americana T. I. Chuang and L. R. Heckard, R. Bacigalupi and P. Rubtzoff 1971-6-10 6905 Sonoma Pitkin Marsh Comment
  RSA783732  Veronica americana Peter Rubtzoff 1960-5-22 4409 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville Roads.) Comment
  UCD19306  Veronica americana Terry Reedy 1974-5-11 209 Sonoma Bodega Head, in freshwater marsh in open water. 6 Comment
  SEINET12337135  Veronica anagallis-aquatica W. Knight, Knight, I. 1988-1 6255 Sonoma Hacienda about 1/4 mi below bridge across Russian River Comment
  CAS-BOT-BC164360  Veronica arvensis Peter Rubtzoff 1959-6-20 4147 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC371440  Veronica peregrina Greg de Nevers 1998-4-21 11159 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Franz Valley Road intersection with Mark West Springs Road 400 Comment
  UCD166123  Veronica persica Peter Rubtzoff 1969-3-30 6005 Sonoma Forest Hills, 5.5 mi. east of Guerneville. At 9981 Old River Road. 16 Comment
  UCR255466  Veronica scutellata Ann Howald 2014-5-2 3002 Sonoma North Coast, c. 1.5 mi southeast of Del Mar Point 23 Comment
  RSA0021073  Veronica scutellata Peter Rubtzoff 1966-6-5 5757 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  RSA799984  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC540814  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh area. Comment
  UC424774  Vicia americana var. americana Milo S. Baker 1929-5-7 3453 b Sonoma roadside thru Smith Corner (near Lagoon) Comment
  RSA655446  Vicia benghalensis Beecher Crampton 1955-4-4 2393 Sonoma Asti Comment
  RSA600857  Vicia cracca Joseph A. Ewan 1935-5-13 9244 Sonoma 2.5 miles west of Santa Rosa: Sebastopol Road. Comment
  UCR254843  Vicia gigantea Greg de Nevers 1998-3-14 11147 Sonoma Duncans Landing Beach, north of Bodega bay 0 Comment
  CAS-BOT-BC361421  Vicia tetrasperma Greg de Nevers 1993-7-4 10471 Sonoma Willow Creek drainage downhill from 18375 Willow Creek Rd. 243 Comment
  UCR142293  Viola G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  CAS-BOT-BC270248  Viola adunca Peter Rubtzoff 1977-11-26 9147 Sonoma On E side of Highway 1 ca 1.5 miles NW of junction of the road to Fort Ross State Historic Park Comment
  JEPS46282  Viola adunca Eleanor Armstrong 1933-4-14 740 Sonoma Bodega Hill Comment
  UC1761433  Viola ocellata Milo S. Baker 1906-4 955 Sonoma Adobe Canyon near bridge Comment
  UC19318  Viola pedunculata Davy May 1888 Sonoma Russian River below Guerneville; Russian River Comment
  UC496478  Viola sempervirens Merle Randall 1930-8-6 Sonoma Cazadero Comment
  CAS-BOT-BC135296  Viscum album William O. McCartney 1966-5-4 s.n. Sonoma in a residential property, NW corner of Mill Station Road and Gravestein North Highway, Sebastopol Comment
  SD70998  Viscum album Stanley Rose 1966-4-3 Sonoma about 1 mile from Sebastopol on Gravenstein Highway North Comment
  UC1393645  Viscum album W. J. Ferlatte and William O. McCartney 1970-12-22 1325 Sonoma Sebastopol; nw corner of Mill Station and Gravenstein Highway Comment
  RSA183446  Viscum album subsp. album William O. McCartney 1966-5-4 s.n. Sonoma In a residential property, NW corner of Mill Station Road and Gravestein North Hwy, Sebastopol. Comment
  CAS-BOT-BC203125  Vitis californica Irja Knight; Walter Knight 1964-11-15 778 Sonoma Hood's [Hood] Peak below Johnson Lake Comment
  CAS-BOT-BC203127  Vitis californica John H. Thomas 1976-6-18 18365 Sonoma About 4.6 miles west of Warm Springs, between Skaggs Springs and Geyserville Comment
  CDA15738  Vitis vinifera G. F. Hrusa 1998-6-14 14590 Sonoma Cultivated Plants; on Foote Ranch. Immed. N of corner Ida Clayton Rd. & Hwy. 128, Knights Valley. Comment
  RSA123467  Vulpia bromoides H. S. Yates 1937-6-6 6585 Sonoma 3 miles east of Jenner. 61 Comment
  CAS-BOT-BC184594  Vulpia microstachys var. pauciflora G. DeNevers 1981-6-4 1431 Sonoma On road cut top of W arm of Garrison Canyon Comment
  UCD94897  Vulpia myuros David L. Morgan 1956-4-19 s.n. Sonoma Gold Ridge Rd., 4 miles W of Sebastopol. Comment
  CAS-BOT-BC185831  Vulpia myuros subsp. megalura John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54657 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek 137 Comment
  SEINET10604532  Vulpia myuros var. hirsuta A. Arthur Heller 1902-6-10 Heller 5681 Sonoma Santa Rosa. Comment
  CAS-BOT-BC128701  Whipplea modesta Volney Rattan 1877-6-12 s.n. Sonoma Guerneville Comment
  HSC20443  Whipplea modesta Martha Meagher 1947-4-6 101 Sonoma County rd. 0.5 mi. W of Freezeout Creek across Russian River from Duncan's Mills Comment
  SEINET10814390  Wolffiella lingulata P. Rubtzoff 1963-9-1 Rubtzoff 5250 Sonoma Bennett Mountain Lake. Comment
  RSA784487  Woodwardia Peter Rubtzoff 1970-9-17 6391 Sonoma Forestville Marsh area. Comment
  UCD166290  Woodwardia Peter Rubtzoff 1970-9-17 6391 Sonoma Forestville Marsh area. Comment
  SBBG36546  Wyethia angustifolia H. and M. Dearing 1933-5-14 2359 Sonoma Cloverdale Comment
  RSA42037  Wyethia angustifolia Ella Dales Cantelow 1938-5-7 2387 Sonoma 8 miles W of Petaluma. Comment