Search Results — 2000 specimen records retrieved (1262 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCD109798  Abronia umbellata H. A. Borthwick 1925-6-7 s.n. Sonoma Willow Camp. 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-BC451111  Acaena pinnatifida var. californica Rimo Bacigalupi 1928-6-18 1903 Sonoma Beach at mouth of Salmon Creek; 2 miles north of Bodega Bay Comment
  UC18123  Acer macrophyllum W. H. Brewer 1862-4-18 960 Sonoma near Sonoma; near Sonoma Comment
  UC70393  Acer macrophyllum Milo S. Baker April 1898 606 Sonoma Santa Rosa Creek Canyon Comment
  HSC2827  Acer negundo var. californicum Martha Meagher 1947-3-22 98 Sonoma Co. rd. 0.5 mi. W of Freezeout Creek across Russian River from Duncan's Mills Comment
  NY149868  Achillea arenicola A. A. Heller 1902-5-27 5608 Sonoma Bodega Bay Comment
  CAS-BOT-BC30091  Achillea millefolium John Thomas Howell 1955-8-6 30896 Sonoma Dunes at Bodega Head Comment
  CAS-BOT-BC30449  Achillea millefolium John Thomas Howell 1938-7-3 13958 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC30450  Achillea millefolium Saichi Kawahara 1968-4-20 315 Sonoma Along Highway 116, 3 miles northeast of Lakeville Road 76 Comment
  CAS-BOT-BC29161  Achyrachaena mollis Mrs. H. C. Cantelow 1936-5-3 1248 Sonoma Near Shellville Comment
  NY380619  Acmispon aestivalis A. A. Heller 1902-8-18 6051 Sonoma Santa Rosa Comment
  CAS-BOT-BC391713  Actaea rubra Mrs. E. C. Sutliffe 1928-7-18 s.n. Sonoma Annapolis Comment
  CAS-BOT-BC139920  Adenostoma fasciculatum A. A. Heller 1902-6-23 5741 Sonoma Petrified Forest Comment
  HSC98397  Adenostoma fasciculatum R. Spellenberg 1964-6-15 404 Sonoma 5 mi. W of The Geysers on road from Geyserville Comment
  UC903198  Adiantum aleuticum Ethel Crum 1930-7-27 823 Sonoma 1 mi n Fort Ross; North Coast Ranges Comment
  CAS-BOT-BC65686  Adiantum jordanii Walter Knight; Irja Knight 1963-12-27 459 Sonoma Pine Flat Rd. Comment
  UC1063726  Adiantum jordanii E. Armstrong 1934-3-26 909 Sonoma 1 mi nw Camp Meeker; Sebastopol Quadrangle 121 Comment
  CAS-BOT-BC9072  Aegilops triuncialis Mary P. Wells 1987-7-7 892 Sonoma Spring Lake Park, Santa Rosa Comment
  CDA1673  Aegilops triuncialis T. C. Fuller 1960-6-14 4485 Sonoma J. Black Ranch, River Road, ca. 6 miles E/ Cloverdale. 0 Comment
  CDA1668  Aegilops triuncialis T. C. Fuller 1960-6-14 4484 Sonoma Weeks Ranch, Los Alamos Rd., ca. 8 miles NE/ Santa Rosa 0 Comment
  CAS-BOT-BC210115  Agoseris Peter Rubtzoff 1974-5-26 7470 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UCD160854  Agoseris grandiflora James A. Neilson Jr.; Teresa A. Sholars 1975-6-25 3275 Sonoma Mayacmas Mountains, adjacent to 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
  UC769858  Agoseris grandiflora var. grandiflora R. F. Hoover 1941-5-14 5101 Sonoma hills n of Bodega Comment
  CAS-BOT-BC22783  Agoseris heterophylla John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53989 Sonoma Fairfield Osborn Preserve of the nature Conservancy, 4.5 miles NW of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC22785  Agoseris heterophylla G. DeNevers 1981-4-30 902 Sonoma Pepperwood ranch, at the studio Comment
  UC1195633  Agrimonia gryposepala A. R. Kruckeberg 1948-6-6 1730 Sonoma w side Mt. St. Helena (bank of Briggs Creek at road crossing, Ida Clayton road); , Briggs Creek Comment
  CAS-BOT-BC451164  Agrimonia gryposepala Greg de Nevers 1991-7-20 9765 Sonoma Ida Clayton Road, at the big spring about 7 miles from Hwy 128 609 Comment
  CAS-BOT-BC166697  Agrostis Peter Rubtzoff; Tim Tunison; Nancy Harrison 1976-6-5 8584 Sonoma False Lake Meadow area, Annadel State Park. Comment
  CAS-BOT-BC210002  Agrostis Peter Rubtzoff 1964-8-20 5461 Sonoma Americano Creek area, along Petaluma-Valley Ford road near Bloomfield Comment
  CAS-BOT-BC210003  Agrostis Peter Rubtzoff 1967-8-22 5857 Sonoma SE of Lower Salmon Creek Marsh Comment
  CAS-BOT-BC361297  Agrostis Greg de Nevers 1997-5-8 10992 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa, on Oak Hill Ranch 457 Comment
  RSA785929  Agrostis Peter Rubtzoff, H. A. Froebe 1971-5-30 6501 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road. Comment
  RSA785931  Agrostis Peter Rubtzoff 1973-7-24 7195 Sonoma Upper Green Valley Marsh. Comment
  UCD163998  Agrostis Peter Rubtzoff 1977-9-3 9126 Sonoma Perry Marsh. Comment
  UCR244617  Agrostis Peter Rubtzoff 1967-8-22 5857 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  UCR256104  Agrostis Greg de Nevers 1992-6-26 10201 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 91 Comment
  UCD35657  Agrostis ampla Beecher Crampton 1959-6-16 5391 Sonoma 2 miles E of Occidental, Jonive School area. Comment
  UCD51871  Agrostis capillaris Beecher Crampton 1957-7-22 4378 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  UC1153786  Agrostis densiflora Beecher Crampton 1957-7-11 4344 Sonoma sandy slopes above bluffs (4.6 mi n of Salmon Creek); Sonoma Coast State Park, Duncan's Point Comment
  UCD37153  Agrostis densiflora Beecher Crampton 1957-7-11 4336 Sonoma Sonoma County, 1.7 miles north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  UCD51895  Agrostis densiflora Beecher Crampton 1957-7-22 4377 Sonoma 1.5 miles south of Stewart's Point. Comment
  UCD51967  Agrostis densiflora P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  UCD52003  Agrostis densiflora Beecher Crampton 1957-7-11 4343 Sonoma Duncan's Point, Sonoma Coast State Park, 4.6 miles north of Salmon Creek. Comment
  UCR279633  Agrostis densiflora Peter Rubtzoff 1967-8-22 5854 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  CAS-BOT-BC361400  Agrostis elliottiana Greg de Nevers 1993-5-6 10437 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd., at Weimar Flat 457 Comment
  CAS-BOT-BC126962  Agrostis exarata G. DeNevers 1981-6-20 1590 Sonoma Pepperwood Ranch. Confluence of Mark West Creek and Leslie Creek. Along Leslie Creek bed. Comment
  CAS-BOT-BC126977  Agrostis exarata Beecher Crampton 1959-6-16 5391 Sonoma Jonive School area, ca. 2 miles east of Occidental. Comment
  POM207134  Agrostis exarata A. A. Heller 1902-6-4 5641 Sonoma Santa Rosa Comment
  UCD148470  Agrostis exarata Peter Rubtzoff 1964-6-3 5342 Sonoma Bodega Bay Marsh. Comment
  UCD161760  Agrostis exarata James A. Neilson Jr. 1975-7-8 3393 Sonoma Mayacmas Mountains; western portion of Geyser Rock.(Coordinates and elevation estimated by label maker.) 1066 Comment
  UCD32829  Agrostis exarata Beecher Crampton 1964-8-18 7150 Sonoma N.E. Sonoma County, The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/4 mile east of Geyser Resort area, Big Sulfer Creek. Comment
  UCD52539  Agrostis exarata Beecher Crampton 1957-7-11 4298 Sonoma Along State Hwy. 1, 1.4 miles SW of Bodega Bay. Comment
  UCD52071  Agrostis exarata R. Tofsrud 1941-5-1 136 Sonoma Sonoma County, California. Comment
  UCD53506  Agrostis exarata P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  CDA13129  Agrostis exarata var. monolepis G. F. Hrusa, R. Gross 1996-6-3 13064 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-BC138857  Agrostis microphylla K. Wagnon 1939-5-11 190 Sonoma Vernal Pool in Bennett Valley. Comment
  UCD53026  Agrostis microphylla Beecher Crampton 1959-6-16 5380 Sonoma 1 mile E of Occidental. Comment
  UCD84282  Agrostis microphylla Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UC174639  Agrostis oregonensis A. A. Heller 1902-6-26 Sonoma along creek at foot Mt. Hood; Sonoma Creek Comment
  CAS-BOT-BC138913  Agrostis pallens Roxana S. Ferris; Laura Lorraine 1961-6-15 13568 Sonoma About 1/8 mile beyond County Dump. Comment
  JEPS45797  Agrostis pallens Eleanor Armstrong 1932-6-3 182 Sonoma 2 mi s Occidental 121 Comment
  UCD53197  Agrostis pallens R. Tofsrud 1951-6-1 s.n. Sonoma summit of Oakville to Kenwood road. Comment
  CAS-BOT-BC138595  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma county coast, 5 miles south of Stewart Point. Comment
  UCD53478  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  UCD53495  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  SEINET4342106  Agrostis stolonifera J. B. Davy 1899-7-22 6003 Sonoma Guerneville Comment
  SEINET10868859  Agrostis tenuis Alan A. Beetle 1941-7-8 Beetle 2855 Sonoma Coast, 5 miles south of Steward Point, coastal bluffs. Assoc. Scirpus cernuus, Lagurus ovatus. Comment
  CAS-BOT-BC138391  Aira caryophyllea var. capillaris Mabel Wiesendanger 1927-5-5 712 Sonoma Sonoma. Comment
  CAS-BOT-BC138395  Aira caryophyllea var. capillaris G. DeNevers 1981-4-20 775 Sonoma Pepperwood Ranch. Pippindale farm. On bench between studio and the ridge top. Comment
  UCD37560  Aira caryophyllea var. capillaris Beecher Crampton 1955-4-5 2406 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  CAS-BOT-BC138216  Aira caryophyllea var. caryophyllea John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53959 Sonoma Fairfiled Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 Comment
  CAS-BOT-BC138188  Aira praecox John H. Thomas 1976-6-16 18339 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  UCD55801  Aira praecox Beecher Crampton 1957-7-11 4353 Sonoma above Blind Beach, just south of Goat Rock, Sonoma Coast State Park, ca. 9 miles north of Salmon Creek. Comment
  CAS-BOT-BC257361  Alisma Peter Rubtzoff 1977-8-12 9114 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD55144  Alisma lanceolatum Ellen Dean; Tammie Beyerl 2006-4-28 3026 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. At inlet of small reservoir SE of Pepperwood lake reservoir. 163 Comment
  CAS-BOT-BC173620  Alisma lanceolatum Peter Rubtzoff 1976-5-30 8570 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC173649  Alisma lanceolatum Peter Rubtzoff 1968-8-31 5953 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville Comment
  RSA201189B  Alisma lanceolatum Peter Rubtzoff 1958-7-20 3783 Sonoma Laguna de Santa Rosa, NE of Graton (near Guerneville Road). Comment
  RSA790061  Alisma lanceolatum Peter Rubtzoff 1970-8-18 6303 Sonoma Five miles north of Sears Point. Comment
  SBBG39698  Alisma lanceolatum P. Rubtzoff 1955-7-16 1959 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC445374  Alisma plantago-aquatica W. W. Carruth 1901-6-1 s.n. Sonoma Near Windsor and Alvarado. Comment
  CAS-BOT-BC445466  Alisma triviale Peter Rubtzoff 1958-7-5 3741 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC445471  Alisma triviale Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC445475  Alisma triviale Peter Rubtzoff 1980-8-23 9619 Sonoma Marin-Sonoma county line. San Antonio Creek on east side of Hwy. 101 crossing. On Marin County side of the creek. Comment
  CAS-BOT-BC462381  Allium amplectens Milo S. Baker 1927-6-10 2211 a Sonoma Macartney Woods Comment
  CAS-BOT-BC462385  Allium amplectens Peter Rubtzoff 1963-6-18 5182 Sonoma Bennett Mt. Lake Comment
  CAS-BOT-BC469106  Allium dichlamydeum L. R. Abrams 1920-7-3 7630 Sonoma near Stewart's Point Comment
  SEINET7067339  Allium parryi A. G. Vestal 1947-5-16 s.n. Sonoma About 4.5 miles east of Windsor. Coordinate datum: NAD27. UTM Zone 10, 522900mE, 4266529mN. Comment
  CAS-BOT-BC478829  Allium vineale John Thomas Howell 1976-6-22 51809 Sonoma Sonoma Joe's Restaurant, Petaluma Comment
  UCD138618  Allium vineale G. D. Barbe 1974-4-29 1782 Sonoma 1 mile south of Washington School Road on Asti Road, Asti. Comment
  CAS-BOT-BC451308  Allotropa virgata Greg de Nevers 1991-6-22 9752 Sonoma Pepperwood Natural Preserve., 33450 Franz Valley Road 475 Comment
  SEINET7220232  Allotropa virgata W. Roderick 1967-6-18 s.n. Sonoma Ida Clayton Rd. NW side of Mt. St. Helena 610 Comment
  CAS-BOT-BC251182  Alnus Peter Rubtzoff 1973-10-10 7338 Sonoma Salmon Creek, 0.25 miles south of Freestone. Comment
  RSA786922  Alnus rhombifolia Carrie A. Herd 1982-03 23 Sonoma Crane Creek Regional Park Comment
  UCD166480  Alnus rhombifolia Peter Rubtzoff 1960-9-15 4549 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC169361  Alnus rubra Peter Rubtzoff 1957-4-28 3286 Sonoma Lower Salmon Creek Marsh, along streamlet Comment
  CAS-BOT-BC169365  Alnus rubra Peter Rubtzoff 1959-6-13 4135 Sonoma Willows Creek Marsh, growing along Willow Creek Comment
  CAS-BOT-BC169370  Alnus rubra Mary P. Wells 1984-8-9 448 Sonoma Public path through golf course to the sea, The Sea Ranch Comment
  CAS-BOT-BC138151  Alopecurus aequalis var. aequalis Peter Rubtzoff 1961-6-17 4635 Sonoma Bennett Mountain Lake. Comment
  RSA129280  Alopecurus aequalis var. sonomensis H. S. Yates 1937-5-30 6555 Sonoma 1.5 miles E. of Occidental. 91 Comment
  CAS-BOT-BC376271  Alopecurus pratensis Greg de Nevers 1996-4-18 10792 Sonoma Knights Valley, marsh at south end of valley at base of hills, on Bavarian Lion Ranch. Knight's Valley Marsh. Bavarian Lion Ranch, 450 ft. 91 Comment
  JEPS97562  Alopecurus saccatus R. D. Stone 1985-6-1 675 Sonoma Shiloh Ranch Mark West Springs (2.3 airmiles NE of intersection of Shiloh and Faught rds.; 0.6 airmiles WSW of); valley of sm. tributary in Mark West Creek drainage 259 Comment
  UCD55951  Alopecurus saccatus Beecher Crampton 1966-5-10 7726 Sonoma 6.5 miles north of Sonoma, State Hwy. 12, Glen Ellen Station, California Div. of Forestry. Comment
  CAS-BOT-BC540844  Amaranthus Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7843 Sonoma Kenwood Marsh Comment
  RSA234560  Amaranthus albus Peter Rubtzoff 1958-8-9 3849 Sonoma Laguna de Santa Rosa north of Sebastopol near Occidental Road. Comment
  RSA90498  Amelanchier florida M. V. Ott 1934-3-31 82 Sonoma Larkspur Hill about 3 miles W of Bodega, near the coast. Comment
  RSA790996  Ammannia Peter Rubtzoff 1972-8-26 6860 Sonoma Laguna, Chileno Valley. Comment
  UCR279886  Ammannia robusta Peter Rubtzoff 1972-8-26 6860 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  SEINET211918  Ammophila arenaria subsp. arenaria J. Taylor, C Taylor 1971-5-29 8065 Sonoma South side of the Russian River adjacent to the Pacific Ocean Comment
  CAS-BOT-BC177229  Amorpha californica var. napensis Peter Rubtzoff 1952-6-10 1228 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC177233  Amorpha californica var. napensis Alice Eastwood 1915-6-5 4614 Sonoma Petrified Forest Comment
  POM252870  Amorpha californica var. napensis A. A. Heller 1902-6-24 s.n. Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC222279  Amsinckia John Thomas Howell 1934-3-25 11775 Sonoma Lakeville Comment
  CAS-BOT-BC26885  Amsinckia acuticarpa Alice Eastwood 1921-4-24 10344 Sonoma Santa Rosa Comment
  RSA0089978  Amsinckia helleri J. T. Howell 1948-4-18 24208 Sonoma Hills east of Agua Caliente. Comment
  UC1278041  Amsinckia intermedia Beecher Crampton 1955-4-5 2420 Sonoma 2 mi n Petaluma (along US Hwy 101) Comment
  CAS-BOT-BC26809  Amsinckia nigricans Amos Arthur Heller 1902-5-27 5614 Sonoma Bodega Bay Comment
  UCD117429  Anagallis arvensis Jennifer Bury; Peggy Herzog 1993-5-8 297 Sonoma Sugarloaf Ridge State Park, about 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn. 1 mile. On Bald Mountain Stem Trail. 371 Comment
  CAS-BOT-BC272873  Ancistrocarphus filagineus Greg de Nevers; Frank Almeda 1987-4-11 8134 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  UCD56108  Andropogon virginicus Virginia Bufford 1936-8-19 415 Sonoma Vine Hill District, Pitkins Marsh. Comment
  CAS-BOT-BC221430  Angelica hendersonii Alice Eastwood 1915-6-29 4881 Sonoma Bodega Point Comment
  CAS-BOT-BC271523  Anisocarpus madioides Edw. L. Greene 1894-6-14 s.n. Sonoma Knight's Valley Comment
  UC496379  Anisocarpus madioides Merle Randall 1930-6-7 Sonoma Cazadero Comment
  CAS-BOT-BC271433  Anisocarpus madioides G. DeNevers 1981-5-23 1305 Sonoma In canyon leading to Redwoods from Devils Kitchen Hill, Pepperwood Ranch Comment
  CAS-BOT-BC271440  Anisocarpus madioides H. M. Hall 1931-5-28 13103 Sonoma Four miles northeast of Mark West Spr., Northeastern Sonoma County Comment
  CAS-BOT-BC173818  Anthemis cotula Peter Rubtzoff 1959-6-13 4139 Sonoma Willow Creek Marsh. 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-BC488329  Anthoxanthum aristatum subsp. aristatum Ayzik Solomeshch 2009-5-14 s.n. Sonoma 2.3 km SE of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1 Comment
  OBI35994  Anthoxanthum odoratum David J. Keil 1983-6-30 17210 Sonoma Stillwater Cove Regional Park Comment
  UCD167561  Anthoxanthum odoratum James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. 1/2 mile west of Black Hawk Ranch on Squaw Creek. (Exact location unkown. Coordinates estimated by label maker. Black Hawk Ranch location not found. Location georeferenced at the end of Ottobani Ridge between Big Sulphur Creek and Squaw Creek because neilson collected in that area on 18 June 1976.) Comment
  UCD56240  Anthoxanthum odoratum Chris Bowen 1974-5-18 118 Sonoma near State Highway 1, Sea Ranch, Unit 7 Owners' Map, near Whalers' Reach. Comment
  RSA301700  Anthoxanthum odoratum A. R. Roos 1938-6-20 1524 Sonoma field between Santa Rosa and Sonoma Comment
  SEINET11689068  Anthoxanthum odoratum H. K. Wagnon 1989-1 1878 Sonoma Salt Pt. State Park Comment
  UCD56277  Anthoxanthum odoratum Beecher Crampton 1957-7-22 4362 Sonoma 8 miles north of Stewart's Point, Bishop Pine grove along State Hwy. 1. Comment
  UCR179374  Anthriscus caucalis Frederica Bowcutt 1994-6-12 1859 Sonoma Sugarloaf Ridge, About 50 air miles N of San Francisco, 10 miles east of Santa Rosa, 1.5 miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek, N of Adobe Canyon Road, at Pony Gate trail juncture 433 Comment
  JEPS83374  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-6-13 329 Sonoma e side Fitch Mt. (just s of resort area on e side, Healdsburg); Healdsburg, Healdsburg Quad. (7.5', 1955) 45 Comment
  POM14617  Antirrhinum virga A. A. Heller 1902-6-26 5775 Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  CAS-BOT-BC457590  Aphanes occidentalis G. DeNevers 1981-5-14 1147 Sonoma Pepperwood Ranch, Pippindale Garden. Comment
  UC22905  Apocynum androsaemifolium F. T. Bioletti 1892-7-5 Sonoma s. Los Guilucos Comment
  CAS-BOT-BC376247  Aquilegia formosa Greg de Nevers 1995-6-3 10742 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Weimar Canyon 487 Comment
  SEINET12094716  Aquilegia formosa var. truncata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -269 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  LA210044  Arabis glabra var. glabra W. B. C. after Rollins; 1930-6-8 5291 Sonoma 8.5 mi. N of Bodega Bay Comment
  CAS-BOT-BC128616  Arbutus menziesii D. E. Breedlove 1980-6-27 44760 Sonoma Pepperwood Ranch W of Knights Valley Comment
  SEINET7258086  Arbutus menziesii L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa Comment
  JEPS98885  Arctostaphylos James Roof 1967-3-19 Sonoma W of Healdsburg (Dorman Canyon Road); Dry Creek watershed Comment
  RSA629212  Arctostaphylos Jon E. Keeley 1993-9-11 24778 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 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
  CAS-BOT-BC24079  Arctostaphylos bakeri Catherine Best 1986-2-9 1161 Sonoma Stoetz Lane about 3 miles northeast of Occidental. 213 Comment
  CAS-BOT-BC24087  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10954 Sonoma 2 miles east of Occidental Comment
  CAS-BOT-BC27176  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10955 Sonoma 2 miles E of Occidental Comment
  OBI14769  Arctostaphylos bakeri Robert F. Hoover 1968-2-23 10896 Sonoma Harrison Grade road near summit Comment
  UC1120879  Arctostaphylos bakeri C. M. Belshaw 1936-3-7 1559 Sonoma 1/4 mi w Trenton; Sebastopol Quadrangle Comment
  UC1388372  Arctostaphylos bakeri Freed W. Hoffman 1948-4-1 2753 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UC1422535  Arctostaphylos bakeri Joe Wagner 1977-11-27 Sonoma 11034 Peaks Pike Rd. Harrison Grade Serpentine Syncline (western fringe area), Se Comment
  UC1614275  Arctostaphylos bakeri Charles M. Belshaw 1936-3-7 1556 Sonoma 2 mi nne of Occidental Comment
  UC549711  Arctostaphylos bakeri J. E. Adams 1935-3-1 1031 Sonoma Occidental Comment
  UCD50404  Arctostaphylos bakeri A. E. Wieslander 1936-9-19 706 Sonoma 1 mile northwest of Occidental. 213 Comment
  SBBG28818  Arctostaphylos bakeri subsp. bakeri L. S. Rose 1934-2-22 34032 Sonoma 2 mi E of Occidental Comment
  SBBG33672  Arctostaphylos bakeri subsp. bakeri C. Bornstein, E. Collins 2006-8-23 Sonoma Harrison Grade Rd, ca. 1 mi S of jct with Green Valley Rd 158 Comment
  RSA165884  Arctostaphylos bakeri subsp. bakeri Lee W. Lenz 10903 Sonoma stock from Saratoga Hort. Foundation, Source unknown Comment
  CAS-BOT-BC27178  Arctostaphylos bakeri subsp. sublaevis P. V. Wells 1967-6-18 61867 Sonoma The Cedars, divide ridge above Big Austin Creek, near Cazadero Comment
  CAS-BOT-BC23969  Arctostaphylos canescens subsp. canescens Milo S. Baker Fall 1936 9782 Sonoma Top of Hood's Peak Comment
  RSA13433  Arctostaphylos canescens subsp. canescens H. F. Copeland 1933-3-18 A- 10 Sonoma Vine Hill region west of Santa Rosa. Comment
  UC1309665  Arctostaphylos canescens subsp. canescens A. E. Wieslander 1939-3-18 872 Sonoma head of Hooker Canyon Sonoma Quadrangle 487 Comment
  UC1388355  Arctostaphylos canescens subsp. canescens Freed W. Hoffman 1946-8-20 868 Sonoma at quarry North Coast Ranges, Napa Range (Trinity Road, w slope of range) Comment
  UCD112405  Arctostaphylos canescens subsp. canescens Christopher Mallek 2008-5-2 s.n. Sonoma Hooker Canyon. 590 Comment
  UCD55064  Arctostaphylos canescens subsp. canescens Ellen Dean; California Department of Forestry Personnel 2006-4-26 3002 Sonoma Top of Mt. St. Helena. 1319 Comment
  CAS-BOT-BC23896  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1931-3-14 5760 Sonoma Rincon Ridge, near Santa Rosa Comment
  CAS-BOT-BC23898  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1933-4-2 10945 Sonoma Rincon Ridge, near Santa Rosa Comment
  RSA177966  Arctostaphylos canescens subsp. sonomensis R. F. Thorne 1965-4-20 34387 Sonoma Robert Sone's place on Rock Ridge Lane- Montecito Ave. on Rincon Ridge, Santa Rosa. 106 Comment
Read comments
Aug 10 2011
  UC480593  Arctostaphylos canescens subsp. sonomensis Carl Meyer 1928-3-3 301 Sonoma Santa Rosa Comment
  UC909881  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1025 Sonoma e Sta. Rosa; Rincon Ridge Comment
  CAS-BOT-BC23606  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11746 Sonoma Between Fort Ross and Stewart's Point Comment
  CAS-BOT-BC23650  Arctostaphylos columbiana J. E. Adams 1934-3-28 731 Sonoma Seven miles north of Fort Ross Comment
  OBI14762  Arctostaphylos columbiana H. E. McMinn 1938-6-20 5127 Sonoma Stewarts Point to Gualala Comment
  UC1388311  Arctostaphylos columbiana Freed W. Hoffman 1947-12-1 2747 Sonoma Salt Point North Coast Ranges Comment
  CAS-BOT-BC24977  Arctostaphylos densiflora Walter Knight; Irja Knight 1980-12-23 3858 Sonoma From California Native Plant Society's Preserve on Vine Hill School Road. Near Graton. Comment
  CAS-BOT-BC24989  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5768 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  CAS-BOT-BC25023  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5778 Sonoma Vine Hill District, 10 miles W of Santa Rosa. Comment
  CAS-BOT-BC25025  Arctostaphylos densiflora John Thomas Howell 1963-11-21 421 Sonoma Vine Hill Rd. ca. 5 mi N past Pitkin Ranch. Comment
  POM215711  Arctostaphylos densiflora Jens Clausen 1933-3-26 743 Sonoma Vine Hill School House, 10 miles west of Santa Rosa, along road. Comment
  RSA13429  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma Near Vine Hill School House Comment
  RSA177948  Arctostaphylos densiflora R. F. Thorne 1965-4-19 34320 Sonoma Vine Hill School Road 1/2 mile from Vine Hill Road. 76 Comment
  UC876398  Arctostaphylos densiflora Milo S. Baker 1933-3-18 7330 Sonoma near Vine Hill School House (10 mi w of Santa Rosa) Comment
  SEINET11993015  Arctostaphylos glandulosa W. Knight, Knight, I.; Edwards, S. W. 1985-1 5173 Sonoma 7.7 mi from W end of Sonoma Lake bridge on Rockpile Rd Comment
  SEINET11994913  Arctostaphylos glandulosa f. cushingiana W. Knight, Knight, I. 1987-1 6080 Sonoma Devil's Kitchen adjacent to Pepperwood Preserve 244 Comment
  CAS-BOT-BC23325  Arctostaphylos glandulosa subsp. cushingiana C. Hart Merriam 1907-7-27 s.n. Sonoma Mt. St. Helena, Knights Valley slope Comment
  RSA631192  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24733 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC24677  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight; Steve Edwards 1986-3-23 5366 Sonoma On Geysers Rd. near Mercuryville at junction of private road ro Sulphur Peak. 822 Comment
  CAS-BOT-BC24723  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1933-4-2 10947 Sonoma 8 mi. w. of Santa Rosa. Comment
  CAS-BOT-BC24725  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1931-3-14 5763 Sonoma Raven Ridge near Santa Rosa. Comment
  POM181140  Arctostaphylos glandulosa subsp. glandulosa J. T. Howell 1931-3-14 5763 Sonoma Rincon Ridge. Comment
  RSA339411  Arctostaphylos glandulosa subsp. glandulosa Walter Knight, Ijra Knight, Stephen Edwards 1985-1-27 5173 Sonoma 7.7 miles from west end of Sonoma Lake bridge on Rockpile Road Comment
  UC1388309  Arctostaphylos glandulosa subsp. glandulosa Freed W. Hoffman 1947-4-3 673 Sonoma near Healdsburg (headwaters of creek, branch of Russian River and Mill Creek); North Coast Ranges, Wild Hog Ridge, Palmer Creek 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
  RSA339413  Arctostaphylos hispidula Roger Raiche 1984-2-26 RR 40044 Sonoma On Rockpile Road ca. 9.1 miles north of origin of Skaggs Springs-Stewarts Point Road 502 Comment
  CAS-BOT-BC24405  Arctostaphylos manzanita Walter Knight; Irja Knight; Roger Raiche; Steve Edwards 1983-7-3 4760 Sonoma The Cedars, near Cazadero on Twitchell Ranch. 243 Comment
  CAS-BOT-BC24407  Arctostaphylos manzanita Roger Raiche; Steve Edwards 1983-6-9 100 Sonoma The Cedars, w. of ridge on Twitchell property near Cazadero. 274 Comment
  CAS-BOT-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
  UCD52166  Arctostaphylos manzanita Beecher Crampton 1955-6-17 2978 Sonoma 2.4 miles south of Monte Rio; road to Camp Meeker. Comment
  HSC7652  Arctostaphylos manzanita R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1328 Sonoma ca. 1 mi. NW of the Big Geysers, along road Comment
  SEINET11990961  Arctostaphylos manzanita Unknown 1983-1 30499 D Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990986  Arctostaphylos manzanita W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4758 Sonoma Parker Hill Rd, Santa Rosa 183 Comment
  SEINET11995488  Arctostaphylos manzanita W. Knight, Knight, I.; Edwards, S. 1987-1 6336 Sonoma Pepperwood, Devil's Kitchen 229 Comment
  CAS-BOT-BC38903  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1918-9-3 7949 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38905  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11301 Sonoma Mt. St. Helena Comment
  UC517513  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11301 Sonoma Mt. St. Helena Comment
  SEINET11994915  Arctostaphylos manzanita subsp. glaucescens W. Knight, Knight, I. 1987-1 6083 Sonoma Pepperwood Preserve, Garrison Canyon 122 Comment
  CAS-BOT-BC38677  Arctostaphylos manzanita subsp. manzanita Stephen W. Edwards; Roger Raiche; Walter Knight; Irja Knight 1983-7-3 4751 Sonoma The Cedars, on serpentinite, near Cazadero. 274 Comment
  CAS-BOT-BC38706  Arctostaphylos manzanita subsp. manzanita G. DeNevers 1981-11-20 1883 Sonoma In the Garrison Canyon Comment
  CAS-BOT-BC38708  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1916-7-4 5781 Sonoma Road between Petrified Forest and Mark West Comment
  CAS-BOT-BC38723  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1932-3-18 A 4 Sonoma Rincon Ridge, north of Santa Rosa Comment
  CAS-BOT-BC38725  Arctostaphylos manzanita subsp. manzanita Roman Gankin; W. R. Hildreth 1967-10-3 1073 Sonoma .2 mile along Wine Creek Road from west Dry Creek Road, near Healdsburg Comment
  RSA13422  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 1 Sonoma Spring Mountain Road, about 8 miles east of 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
  CAS-BOT-BC38689  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-6-15 6691 Sonoma Thicket, 1 mile N. of Sebastapool Comment
  RSA96696  Arctostaphylos manzanita subsp. manzanita P. C. Everett, E. K. Balls, George B. Everett 1954-10-20 20377 Sonoma 4 mi. s.w. of Lake-Sonoma Co. line, n.w. to w. slope Mt. St. Helena. 640 Comment
  UCD52046  Arctostaphylos manzanita subsp. manzanita Christine Lee 1993-4-24 97 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; south of Sonoma Creek along Hillside Trail. 396 Comment
  CAS-BOT-BC47336  Arctostaphylos stanfordiana Lewis S. Rose 1955-2-28 55009 Sonoma 2 mi. w. of Graton. Road to Occidental. 121 Comment
  CAS-BOT-BC47338  Arctostaphylos stanfordiana Roger Raiche 1982-4-10 20301 H Sonoma King Ridge Rd. (4.5 mi. from King Ridge Rd. on Old Layton Mine Rd.), about 0.7 mi. in from King Ridge Rd. on old Layton Comment
  CAS-BOT-BC47341  Arctostaphylos stanfordiana John Thomas Howell 1931-3-14 5777 Sonoma Vine Hill District, 10 mi. w. of Santa Rosa. Comment
  CDA12038  Arctostaphylos stanfordiana G. F. Hrusa 1990-1-2 7351 Sonoma North Coast Biodiversity Arena; NW slopes of Hogback Mtn. approx. 4 km. NE of Sonoma. Comment
  SD143521  Arctostaphylos stanfordiana H. F. Copeland 1933-3-18 A 11 Sonoma Spring Mountain Road, about 8 mi. E of Santa Rosa Comment
  SEINET2028691 Image available Arctostaphylos stanfordiana B. F. Copeland 1933-3-18 A 11 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa Comment
  UC1043525  Arctostaphylos stanfordiana P. C. Everett and E. K. Balls 1954-10-20 20376 Sonoma 4 mi sw from Lake-Sonoma Co. line (nw to w slopes of Mt. St. Helena) 640 Comment
  UC1388313  Arctostaphylos stanfordiana Freed W. Hoffman 1947-3-12 752 Sonoma Trinity Rd ne Kenwood; North Coast Ranges, west slope of Napa Range Comment
  SEINET11984942  Arctostaphylos stanfordiana Unknown 1966-1 686 Sonoma S of Hooker Canyon at point directly opposite canyon from Cavedale Rd, 3.1 mi E of junction of CA 12 Comment
  SEINET11987349  Arctostaphylos stanfordiana W. Knight, Knight, I. 1981-1 3960 Sonoma 2.3 mi up Cavedale Rd from junction of CA 12 Comment
  SEINET11989085  Arctostaphylos stanfordiana Unknown 1982-1 20301 F Sonoma King Ridge Rd (4.5 mi N of jct Ft Ross Rd) about 0.7 mi in from King Ridge Rd on Old Layton Mine Rd Comment
  SEINET11989145  Arctostaphylos stanfordiana B. A. Stein 1981-1 453 Sonoma Ida Clayton Rd 457 Comment
  SEINET11991022  Arctostaphylos stanfordiana W. Knight, Knight, I. 1983-1 4701 Sonoma Trinity Grade 270 Comment
  SD73202  Arctostaphylos stanfordiana subsp. bakeri Darley F. Howe 1969-6-8 4635 Sonoma 3.8 mi. E of Occidental 274 Comment
  JEPS95227  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  RSA201846  Arctostaphylos stanfordiana subsp. stanfordiana Roman Gankin 1966-3-3 687 Sonoma 3.1 miles east of junction with State Highway 12. Comment
  SEINET11995501  Arctostaphylos stanfordiana var. repens W. Knight, Knight, I.; Edwards, S. 1985-1 6051 Sonoma Chapman Branch of Crane Creek, near Dorman Canyon 265 Comment
  UC549527  Arctostaphylos uva-ursi J. E. Adams 1934-3-28 738 Sonoma coastal bluffs s Gualala Riv. Comment
Read comments
Nov 10 2011
  CAS-BOT-BC47470  Arctostaphylos viscida subsp. viscida Stephen W. Edwards 1981-2-16 s.n. Sonoma north of Adobe Canyon Road, just outside of w. boundary Sugarloaf Ridge State Park. Comment
  UCR44931  Arenaria douglasii L. F. LaPre 1986-6-2 s.n. Sonoma Red Slide, serpentine rockslide along upper East Austin Creek, 5 mi north of Cazadero, 3 mi up a private road from Mannings Flats, Austin Creek State Recreation Area 305 Comment
  CAS-BOT-BC400483  Aristolochia californica A. A. Heller; H. E. Brown 1902-3-12 5042 Sonoma Sonoma Creek, Eastern base of Mt. Hood Comment
  SD130420  Aristolochia californica F. Almeda, G. DeNevers 1981-3-30 4875 Sonoma Pepperwood Ranch, along the road to the Garrison Cabin at the southwest sector of the ranch. Comment
  CAS-BOT-BC400482  Aristolochia californica Alice D. Sargent 1922-4-18 s.n. Sonoma Russian River near Montesano. (Southwest of Guernewood Park, across the river from Vacation Beach, acc. to map.) [Locality info from collection label and annotation label combined.] Comment
  CDA22413  Aristolochia californica M. Vernon 1985-6-21 Sonoma 6858 Hessel Road, Sebastopol. 0 Comment
  RSA40726  Armeria maritima subsp. californica E. K. Balls, Percy C. Everett 1953-10-9 18602 Sonoma 0.7 mi NW of Salmon Creek, Hwy 1 between Bodega Bay and Jenner, Sonoma Coast State Park. 15 Comment
  RSA0056337  Armeria maritima var. californica Jim Shevock 1971-1-30 627 Sonoma Along HIghway 1. 16 Comment
  RSA0065159  Arnica discoidea Greg de Nevers 1997-4-24 10956 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  UCR280131  Artemisia douglasiana Peter Rubtzoff 1970-9-3 6371 Sonoma Marsh off west side of Highway 1, 0.7 miles SE of Salmon Creek crossing 30 Comment
  CAS-BOT-BC499175  Artemisia douglasiana Peter Rubtzoff 1986-9-28 9752 Sonoma Russian River at Forest Hills, 5.5 mi E of Guerneville Comment
  CAS-BOT-BC90862  Artemisia pycnocephala Alice Eastwood 1915-6-29 4801 Sonoma Bodega Point Comment
  UCSB15414  Artemisia pycnocephala Breedlove, Dennis 1961-12-31 Sonoma At mouth of Russian River 3 Comment
  SEINET258290  Artemisia suksdorfii Leila M. Shultz, John S. Shultz 1986-9-20 10236 Sonoma 1 mile north of Jenner along Pacific Coast Highway 6 Comment
  CAS-BOT-BC368057  Arum italicum Greg de Nevers 1998-5-20 11254 Sonoma Mark West Creek on Cresta Ranch Comment
  CAS-BOT-BC400606  Asarum caudatum Peter Rubtzoff 1951-11-24 839 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  RSA12258  Asarum caudatum C. B. Wolf 1934-6-29 s.n. Sonoma 6/10 of a mile inland from Stewart s Point. 61 Comment
  SEINET11718421  Aspidotis densa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -244 Sonoma end of Stoetz Road 200 Comment
  CDA10240  Aster chilensis P. Robinson 1985-8-1 s.n. Sonoma Guerneville, Sweetwater Springs Road. Comment
  CAS-BOT-BC376340  Astragalus breweri Greg de Nevers 1998-6-10 11278 Sonoma Modini Mayacamas Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  RSA108730  Astragalus claranus H. D. Ripley, R. C. Barneby 1954-4-30 11238 Sonoma 7 miles NE of Santa Rosa near Alpine School. 167 Comment
  UC13433  Astragalus gambelianus E. L. Greene 1892-4-20 Sonoma Mt. St. Helena Comment
  RSA415822  Astragalus gambelianus J. T. Howell 1931-4-19 6433 Sonoma Spring Mountain Road, 7.5 miles from St. Helena. Comment
  RSA0018575  Atriplex Peter Rubtzoff 1958-9-6 3988 Sonoma Laguna de Santa Rosa, east of Sebastopol Comment
  UCD97622  Atriplex prostrata Mary M. Hektner 1975-8-14 228 Sonoma on Shell Beach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD38528  Avena Beecher Crampton 1956-3-13 3227 Sonoma Asti. Comment
  CAS-BOT-BC146137  Avena barbata A. A. Heller 1902-3-26 5157 Sonoma Santa Rosa Creek, east of Santa Rosa. Comment
  UCD56211  Avena barbata Beecher Crampton 1956-3-12 3222 Sonoma Along U.S. Hwy. 101. Italian-Swiss Colony Winery Grape Vineyards. Asti. Comment
  CAS-BOT-BC145719  Avena fatua David L. Morgan 1956-5-7 s.n. Sonoma 1 mile east of Shellyville Railroad station on Cal. Hwy. 12. Comment
  SEINET10514072  Avena fatua A. Arthur Heller 1902-4-9 Heller 5251 Sonoma In a railroad cut 3 miles south of Healdsburg. Comment
  RSA784562  Baccharis douglasii Peter Rubtzoff 1958-8-23 3918 Sonoma Laguna de Santa Rosa E of Cunningham (near Llano Road). Comment
  UC727746  Baccharis glutinosa Milo S. Baker 1946-7-28 11539 Sonoma Sear's Point Highway Comment
  CAS-BOT-BC98218  Baccharis salicifolia Mrs. Alexander McCallum 1898-10-1 s.n. Sonoma Preston Comment
  CAS-BOT-BC16692  Barbarea orthoceras A. A. Heller; H. E. Brown 1902-3-20 5106 Sonoma Near Windsor. Comment
  RSA94330  Barbarea orthoceras Peter Rubtzoff 1951-6-9 163 Sonoma Pitkin Marsh, near Forestville; Forest south of the Upper Marsh. Comment
  CAS-BOT-BC145826  Beckmannia syzigachne Peter Rubtzoff 1958-8-16 3876 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  POM206249  Beckmannia syzigachne A. A. Heller 1902-6-7 5650 Sonoma Bennet Valley, southeast of Santa Rosa. Comment
  UCR248773  Beckmannia syzigachne Peter Rubtzoff 1970-6-14 6263 Sonoma Marsh on River Road, c. 3 miles west of Fulton 27 Comment
  SEINET10514173  Beckmannia syzigachne A. Arthur Heller 1902-6-7 Heller 5650 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  CDA6862  Bellis perennis G. D. Barbe 1982-5-27 3616 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Skaggs Spring Road. Comment
  CAS-BOT-BC102053  Bidens cernua Peter Rubtzoff 1951-9-15 760 Sonoma Pitkin Marsh, near Forestville; Lower part of the Upper Marsh Comment
  CAS-BOT-BC102005  Bidens frondosa John Thomas Howell 1946-8-17 22849 Sonoma The Laguna north of Sebastopol Comment
  RSA0015634  Bidens frondosa Peter Rubtzoff 1958-9-20 3995 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mile north of Guerneville Rd.) Comment
  RSA0020350  Bidens frondosa Peter Rubtzoff 1960-9-14 4528 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC290648  Bidens laevis Peter Rubtzoff 1955-11-27 2170 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC100250  Blennosperma bakeri Wayne Roderick 1961-4-1 s.n. Sonoma 4.6 mi. south of El Verano (From 0.4 to 0.6 mi. n. of Hwy #37 on Arnold Dr.) Comment
  CAS-BOT-BC100256  Blennosperma bakeri John Thomas Howell 1949-4-6 25303 Sonoma Low field sw. of Sonoma Comment
  JEPS25829  Blennosperma bakeri Wayne Roderick 1961-4-2 Sonoma 0.8 mi n of junction of State Highway 37 and Arnold Drive; on the e side of Arnold Drive Comment
  RSA128567  Blennosperma nanum Peter H. Raven 1954-2-27 6421 Sonoma Cavedale Road, ca. 3 miles north of Boyes Springs, Sonoma Valley. Comment
  RSA41980  Blennosperma nanum Ella Dales Cantelow 1941-4-18 3590 Sonoma 2 miles north of Windsor. Comment
  CAS-BOT-BC154962  Boisduvalia Peter Rubtzoff 1970-5-30 6247 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC154957  Boisduvalia densiflora Peter Rubtzoff 1962-6-19 4919 Sonoma Occidental Marsh Comment
  RSA94294  Boisduvalia densiflora var. densiflora Peter Rubtzoff 1951-7-14 455 Sonoma Pitkin Marsh near Forestville, between the Upper and the Lower marshes Comment
  CAS-BOT-BC173611  Boisduvalia glabella Peter Rubtzoff 1956-9-14 2875 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  CAS-BOT-BC28222  Bolboschoenus fluviatilis Peter Rubtzoff 1966-7-4 5772 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Rd. Comment
  UC1100889  Bolboschoenus robustus Verne Grant, Herbert L. Mason 1946-8-28 13077 Sonoma Mouth of Tolay Creek Comment
  CAS-BOT-BC31353  Bolboschoenus robustus Walter Knight; Irja Knight 1984-8-27 5082 Sonoma Gilardi's Resort near Lakeville in tidal area. 3 Comment
  CAS-BOT-BC376305  Boraginaceae Greg de Nevers 1992-4-8 10101 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Martin Creek. 400 Comment
  SEINET12122373  Bowlesia incana Unknown 1987-1 70026 Sonoma S of mouth of Russian River, Goat Rock State Park, area W of Coast Hwy 1 & S of main entrance road 12 Comment
  RSA0057963  Boykinia elata Greg de Nevers 1997-9-22 11090 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction. 100 Comment
  CHSC91605  Boykinia occidentalis G. F. Hrusa; R. Gross, D. Gross 2003-11-11 16200 Sonoma North Coast Biodiversity Arena. Creekbed of Kellogg Cr., NW base of Mt. St. Helena. 536 Comment
  UC964743  Boykinia occidentalis R. F. Hoover 1942-7-6 5914 Sonoma canyon s Geysers; canyon s of the Geysers 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
  UCD57082  Brachypodium distachyon G. Douglas Barbe 1984-6-13 4172 Sonoma On Willow Creek Road between Bridge Haven (Highway 1) and Coleman Valley Road. West of Occidental. Comment
  SEINET944633  Brachypodium distachyon John Thomas Howell 1959-1 Sonoma Hills east of Agua Caliente, Sonomo County. Comment
  CDA3606  Brassica rapa J. M. DiTomaso 2001-5-9 s.n. Sonoma Bodega Bay Marine Lab across from entrance to the marine facility. 0 Comment
  CAS-BOT-BC182741  Brassicaceae Peter Rubtzoff 1958-8-9 3845 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road) Comment
  CAS-BOT-BC376301  Brassicaceae Greg de Nevers 1989-2-1 9035 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Murry. 400 Comment
  JEPS121160  Briza maxima Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18591 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  SEINET4182957 Image available Briza maxima Robert F. Hoover 1941-5-14 5102 Sonoma Hills north of Bodega. Comment
  UCD36535  Briza maxima Beecher Crampton 1954-4-26 1792 Sonoma Sonoma County, 2 miles north Geyserville, along U.S. Highway 101. Comment
  UCD57163  Briza maxima Milo S. Baker 1945-5-5 10894 Sonoma Baker Ranch near Kenwood. 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-BC145294  Briza minor G. DeNevers 1981-5-30 1379 Sonoma Pepperwood Ranch. On the shore of the Pippindale Pond, above the high water mark. Comment
  CAS-BOT-BC145303  Briza minor Alice Eastwood 1921-5-8 10442 Sonoma Petaluma. Comment
  RSA239699  Briza minor Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1097 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  UCD57380  Briza minor Charles B. Heiser Jr. 1946-5-19 1753 Sonoma Russian River near Duncan Mills. Comment
  UCD57399  Briza minor Charles B. Heiser Jr. 1946-5-19 1753 Sonoma Russian River near Duncan Mills. Comment
  UCD151303  Brodiaea elegans subsp. elegans James A. Neilson Jr. 1974-7-25 3032 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  CAS-BOT-BC484388  Brodiaea elegans subsp. elegans James McMurphy 1909-5-28 s.n. Sonoma 1 mile west of Santa Rosa Comment
  CAS-BOT-BC484399  Brodiaea elegans subsp. elegans Peter Rubtzoff 1969-6-15 6087 Sonoma Laguna de Santa Rosa 1 mile east/southeast of Sebastopol Comment
  SEINET10534094  Brodiaea laxa John Thomas Howell 1931-6-15 Howell 6689 Sonoma Near Sebastopol, California Comment
  JEPS5694  Brodiaea leptandra W. L. Jepson 1923-6-28 10006 Sonoma Sonoma Canyon Vicinity of San Francisco Bay, Kenwood Comment
  UC768739  Brodiaea leptandra R. F. Hoover 1938-6-14 3604 Sonoma 2 mi se Healdsburg Comment
  JEPS82292  Brodiaea stellaris Roger Raiche 1983-7-4 30470 Sonoma slope s Gilliam Creek (below Redwood Lake, at convergence of several steep ravines); East Austin Creek Recreation Area 304 Comment
  CAS-BOT-BC486502  Brodiaea stellaris Milo S. Baker 1923-7-26 1278 Sonoma Lamb Ranch near head of South Fork of Yager Comment
  UCD77159  Brodiaea terrestris Robert E. Preston 2005-6-11 2350 Sonoma Irish Hill, along Coleman Valley Rd, ca. 1 mi E of Hwy 1. 208 Comment
  CAS-BOT-BC486474  Brodiaea terrestris subsp. terrestris V. Penalosa 1961-5-24 1578 Sonoma Slope above Upper Stemple Creek Marsh Comment
  CAS-BOT-BC311834  Bromus Peter Rubtzoff; Betty Lovell 1975-8-11 8315 Sonoma Kenwood Marsh. Comment
  SJSU6768  Bromus briziformis J. L. Tipton 1976-5-1 Sonoma orchard 3 mi SE of Sebastopol 121 Comment
  UCD58245  Bromus carinatus G. L. Stebbins Jr.; W. S. Boyle 1942-5-12 3231 Sonoma 2.8 miles north of Occidental. On road to Monte Rio. Comment
  UCD58250  Bromus carinatus Collector unknown 1941-4-1 Sonoma Santa Rosa. Franklin Ave. Comment
  CAS-BOT-BC149091  Bromus carinatus var. carinatus Mary P. Wells 1981-8-2 s.n. Sonoma Between playground on Leeward Road and the sea. The Sea Ranch. Comment
  CAS-BOT-BC149095  Bromus carinatus var. carinatus David L. Morgan 1956-4-9 s.n. Sonoma Mountain View Avenue. Comment
  UC1130960  Bromus carinatus var. carinatus H. S. Yates 1937-5-31 6562 Sonoma 2 mi e of Mark West Springs 243 Comment
  UC1130977  Bromus carinatus var. carinatus H. S. Yates 1934-4-22 3838 Sonoma 3 mi e of Mark West 213 Comment
  CAS-BOT-BC155894  Bromus catharticus var. elatus John Thomas Howell 1955-4-14 30148 Sonoma Ranch yard, about 2 miles southeast of Sonoma. Comment
  CAS-BOT-BC155663  Bromus diandrus Mary P. Wells 1981-8-2 s.n. Sonoma On path to garden of Timber Ridge Road. The Sea Ranch. Comment
  CAS-BOT-BC155211  Bromus hordeaceus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53969 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 Comment
  CAS-BOT-BC155249  Bromus hordeaceus John H. Thomas 1976-6-16 18341 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  UC1010995  Bromus hordeaceus Virginia Bufford 1936-5-22 383 Sonoma about 10 mi from Stewarts Point (Skaggs Spring Road); Skaggs Spring Road Comment
  UCD58707  Bromus hordeaceus Mary M. Hektner; Sue Dakuzaku 1974-6-3 18 Sonoma Sea Ranch. Near State Highway 1. Unit 24 Owners' Map. Comment
  UCSB50252  Bromus hordeaceus Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Breach (T6N, R11W) 18 Comment
  CAS-BOT-BC155215  Bromus hordeaceus Walter Knight; Irja Knight; J. T. Howell 1987-5-27 6275 Sonoma Dodd Road Preserve. 24 Comment
  SEINET11690144  Bromus hordeaceus J. T. Howell, Knight, W.; Knight, I. 21 May 198? 6227 Sonoma Todd Road Preserve 24 Comment
  SDSU951  Bromus japonicus D. F. Howe 1972-5-2 4817 Sonoma Trail above Duncan Mills Pond Comment
  CAS-BOT-BC162397  Bromus laevipes G. DeNevers 1981-5-9 1101 Sonoma Pepperwood Ranch. South of Redwood Canyon. Comment
  JEPS128385  Bromus laevipes Roger Raiche 2000-5-4 064 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SBBG26403  Bromus laevipes B. Crampton 1965-6-30 Sonoma summit of Vaca Mts, near county line 872 Comment
  UCD144425  Bromus laevipes Frederica Bowcutt 1994-6-25 1914 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 Grey Pine Trail about 1/2 way between Brushy Peak Trail and Meadow Trail. 530 Comment
  RSA0056432  Calamagrostis bolanderi Greg de Nevers 1996-6-17 10831 Sonoma CYO Camp south of Occidental on Bohemian Highway. 121 Comment
  CAS-BOT-BC185127  Calamagrostis nutkaensis Peter Rubtzoff 1952-5-21 1058 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  RSA126854  Calamagrostis nutkaensis H. S. Yates 1937-5-30 6559 Sonoma 2 miles N. E. of Freestone; Sebastapol. 122 Comment
  UC1146619  Calamagrostis nutkaensis Freed W. Hoffman 1941-7-27 2219 Sonoma Bodega Bay North Coast Ranges (coastal strand) Comment
  RSA0065200  Calamagrostis rubescens Greg de Nevers 1997-6-7 11019 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On the Oak Hill Ranch burned area. 100 Comment
  CAS-BOT-BC438604  Calandrinia ciliata Peter Rubtzoff 1954-11-18 1765 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC273238  Calendula arvensis Milo S. Baker 1946-4-2 11306 Sonoma Along overflow channel West of Sonoma Cr. a mile or so south of El Verano Comment
  CAS-BOT-BC273243  Calendula arvensis W. R. Russell 1967-3-28 s.n. Sonoma At north end of town, Sonoma Comment
  CAS-BOT-BC167303  California macrophylla J. W. Congdon 1880-5-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC293674  Callitriche heterophylla Peter Rubtzoff 1974-4-6 7355 Sonoma Along Lawndale Road, 0.75 miles south of Highway 12. Comment
  NY370199  Callitriche heterophylla var. bolanderi M. A. Nobs 1949-8-1 1106 Sonoma Bog, 2 miles east of Stewart's Point on road to Geyserville Comment
  UC17873  Callitriche heterophylla var. bolanderi F. T. Bioletti Apr 1893 Sonoma Kenwood Comment
  UCR249053  Callitriche trochlearis Peter Rubtzoff 1961-5-24 4607 Sonoma Upper Stemple Creek Marsh 21 Comment
  UC672157  Calochortus amabilis Herbert L. Mason 1934-4-28 8068 Sonoma Jensen's Ranch Dohrman Creek Comment
  CAS-BOT-BC483272  Calochortus amabilis Saichi Kawahara 1968-4-20 328 Sonoma Oak-Trinity Road, 1 mile northeast of Highway 12 152 Comment
  CAS-BOT-BC483294  Calochortus amabilis Wayne Roderick 1967-5-20 s.n. Sonoma Ida Clayton Road, n.w. side of Mt. St. Helena 304 Comment
  UCSB636  Calochortus pulchellus Keator, Glenn 1959-4-2 Sonoma 0.9 miles east on Cavedale road and 2.0 miles northeast of Agua Caliente Comment
  SEINET4998947  Calochortus raichei Unknown 1995-6-25 093 .95 Sonoma N of Cazadero; The Cedars; Red Slide Creek drainage; at the top of Red Slide Falls Comment
  UCR143606  Calochortus tolmiei G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  UC672142  Calochortus uniflorus Herbert L. Mason 1928-4-13 4327 Sonoma near Petaluma Comment
  RSA369107  Calochortus vestae Christopher Davidson 1977-6-20 6005 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  CAS-BOT-BC181538  Caltha palustris Peter Rubtzoff 1955-5-21 1871 Sonoma Forestville Marsh Comment
  UC1876265  Calycadenia fremontii Gerald D. Carr 1972-9-11 731 Sonoma 1.0 mi W of Westside Rd. on Mill Creek Rd., 2.5 mi SW of Healdsburg. 106 Comment
  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
  RSA93402  Calycadenia multiglandulosa subsp. cephalotes Milo S. Baker 1932-6-9 6000 Sonoma 1 mile east of Occidental Comment
  CAS-BOT-BC270847  Calycadenia pauciflora David D. Keck 1944-7-11 5511 Sonoma The Geysers, Mayacamas Range Comment
  UC479413  Calycadenia pauciflora Marcus E. Jones, A. M. 1931-7-5 29125 Sonoma The Geysers Comment
  CAS-BOT-BC371437  Calycadenia truncata Greg de Nevers 1997-7-29 11072 Sonoma Near Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Just south of Redwood Canyon on neighbor's land 400 Comment
  UCR256115  Calycadenia truncata Greg de Nevers 1997-7-29 11072 Sonoma North Coast Range, near Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC90994  Calycanthus occidentalis Peter Rubtzoff 1987-7-18 9798 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC91013  Calycanthus occidentalis F. G. Krauss 1893-11-1 s.n. Sonoma Kronos Ranch in Kronos Canyon. Comment
  UCR30831  Calycanthus occidentalis John C. Roos 1948-8-28 3956 Sonoma North Coast Ranges, Barrel Spring, Mill Creek, near Healdsburg 292 Comment
  CAS-BOT-BC91015  Calycanthus occidentalis Helen D. Geis 1902-8-1 s.n. Sonoma Unspecified. Comment
  UC4384  Calypso bulbosa Miss Atterbury 1895-3-20 Sonoma Cazadero Comment
  UCD160965  Calyptridium umbellatum James A. Neilson Jr. 1975-7-8 3377 Sonoma Mayacmas Mountains. Near U.S. Geothermal 2, 1/2 mile south of Socrates Mine Road. (Elevation and coordinates estimated by label maker.) 914 Comment
  JEPS83489  Calystegia collina subsp. oxyphylla Jack and Betty Guggolz 1986-5-11 867 Sonoma On a low bank on the NE side of the road through Pine Flat Comment
  JEPS87231  Calystegia collina subsp. oxyphylla Jack and Betty Guggolz 1989-4-23 999 Sonoma Just east of Deer Creek crossing of Pine Flat Road Comment
  JEPS87233  Calystegia collina subsp. oxyphylla Jack and Betty Guggolz 1992-5-2 1271 Sonoma Found on the north side of White Rock, 1 3/4 miles north of Jimtown 304 Comment
  CAS-BOT-BC223618  Calystegia collina subsp. oxyphylla Mrs. H. C. Cantelow 1938-5-15 2406 Sonoma 5 2/10 mi. s. of The Geysers Comment
  SBBG5769  Calystegia purpurata H. and M. Dearing 1939-5-14 3353 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  JEPS111396  Calystegia purpurata subsp. purpurata Jack and Betty Guggolz 1997-6-23 1533 Sonoma North side of Kelly Road from one mile to two miles west of the Rockpile Road crossing 550 Comment
  CAS-BOT-BC224741  Calystegia purpurata subsp. saxicola John Thomas Howell 1930-6-8 5290 Sonoma 8.5 miles n. of Bodega Bay Comment
  SDSU5665  Calystegia purpurata subsp. saxicola D. F. Howe 1969-5-28 4011 Sonoma 13.5 miles north of Jenner on #1. Comment
  JEPS120458  Calystegia purpurata subsp. saxicola Daniel Slakey 2013-7-10 58 Sonoma Salt Point State Park, specimens collected along a 1 mile stretch of coast surrounding Salt Point. Comment
  CAS-BOT-BC436454  Calystegia subacaulis Alice Eastwood 1921-5-8 10473 Sonoma Petaluma Comment
  CAS-BOT-BC160369  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Lewis S. Rose 1962-8-6 s.n. Sonoma Bodega Comment
  CHSC79974  Campanula californica Melissa Brooks; Colette Beaupre 2000-7-20 Sonoma Near Sea Ranch, Ca on Gualala Redwoods, Inc. property, in portion of German Rancho. MDB and M. 60 Comment
  SEINET10463924  Campanula californica Rowntree 1931-7-15 ROWNTREE s.n. Sonoma Skyp Springs road Comment
  SEINET10905987  Campanula californica P. Rubtzoff 1951-6-30 Rubtzoff 299 Sonoma Pitkin Marsh, near Forestville, western branch of Upper Marsh, in a marshy opening Comment
  UC34817  Campanula prenanthoides W. C. Blasdale 1896-7-18 Sonoma Cozadero Comment
  SEINET10463218  Campanula prenanthoides Rattan 1877-6-14 RATTAN s.n. Sonoma Guerneville Comment
  UCR280188  Capsella bursa-pastoris Peter Rubtzoff 1958-8-9 3841 Sonoma Laguna de Santa Rosa, north of Sebastopol, near Occidental Road 20 Comment
  CAS-BOT-BC182782  Capsella bursa-pastoris Peter Rubtzoff 1974-5-19 7443 Sonoma Laguna de Santa Rosa east of Graton between Occidental and Guerneville Roads Comment
  UC10411  Cardamine californica Edw. L. Greene 1892-1 Sonoma Knights' Valley Comment
  UC1299650  Cardamine californica Freed W. Hoffman 1947-3-11 821 Sonoma headwaters Duvoul Creek (a branch of Dutch Bill Creek and tributary of Russian River); North Coast Ranges, , Dutch Bill Creek, Russian Comment
  CAS-BOT-BC37772  Cardamine californica Mrs. H. C. Cantelow 1937-3-25 s.n. Sonoma Near Valley Ford. Comment
  HSC6696  Cardamine californica R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1329 Sonoma 1 mi. NW of Big Geysers Comment
  CDA36842  Cardamine hirsuta CDFA Staff s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  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
  JEPS128267  Cardamine oligosperma Roger Raiche 2000-4-8 027 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC38031  Cardamine oligosperma Peter Rubtzoff 1959-6-20 4160 Sonoma Willow Creek Marsh. Bank of Willow Creek. Comment
  UC727778  Cardamine oligosperma Milo S. Baker Apr. 1946 11309 Sonoma Brookside Garden near Kenwood; Brookside Garden near Kenwood Comment
  UCD114549  Cardamine oligosperma Boris Korotyaev 2000-3-28 s.n. Sonoma Bodega Bay. Comment
  JEPS128330  Cardamine pachystigma var. dissectifolia Roger Raiche 2010-4-17 016 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA107087  Cardionema ramosissimum L. S. Rose 1956-7-16 56129 Sonoma Bodega Point. 9 Comment
  CAS-BOT-BC173834  Carduus Peter Rubtzoff 1962-6-1 4874 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC281766  Carduus pycnocephalus John H. Thomas 1976-6-15 18280 Sonoma S end of the Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CAS-BOT-BC281771  Carduus pycnocephalus Roxana S. Ferris; Laura Lorraine 1948-6-9 11658 Sonoma Franz Valley Rd about 0.75 mile from Mark West Rd Comment
  HSC42204  Carduus tenuiflorus S. Saufferer 1973-5-24 219 Sonoma Bodega Bay near the ocean Comment
  RSA790300  Carduus tenuiflorus Peter Rubtzoff 1962-7-14 4992 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC422340  Carex Peter Rubtzoff; Betty Lovell 1975-8-11 8313 Sonoma Kenwood Marsh. Comment
  UCR254736  Carex abrupta Peter Rubtzoff 1958-5-17 3658 Sonoma Laguna de Santa Rosa north of Sebastopol, near Occidental Road 18 Comment
  UCR248933  Carex athrostachya Peter Rubtzoff, Nancy Harrison 1974-7-13 7681 Sonoma Upper Green Valley Marsh Comment
  UCR137670  Carex barbarae Don Pendleton 1993-5-29 s.n. Sonoma North Coast Ranges, 5297 Westside Rd, Russian River Valley, c. 5 mi SW of Healdsburg 46 Comment
  UCR249345  Carex barbarae Peter Rubtzoff 1958-5-4 3629 Sonoma Forestville Marsh 71 Comment
  CAS-BOT-BC19371  Carex barbarae G. DeNevers 1981-3-14 528 A Sonoma Pepperwood Ranch. Pippindale farm, 7 miles NE of Santa Rosa, near Mark West lodge. In Leslie Creek. In Mark West Creek. Comment
  UC70606  Carex bolanderi Bioletti 1893-6-5 Sonoma South Los Guilucos Valley Comment
  UCR249076  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncan Mills Marsh, upper portion of marsh 2 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-BC34425  Carex cusickii John Thomas Howell; J. W. Stacey 1936-7-26 12683 Sonoma Pitkin Marsh. 5 miles north of Sebastopol. Comment
  RSA0034194  Carex cusickii Peter Rubtzoff 1955-5-14 1839 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC20477  Carex densa John Thomas Howell; J. W. Stacey 1937-6-6 13019 Sonoma Sebastopol. Comment
  CAS-BOT-BC20489  Carex densa James D. Jokerst 1985-4-26 2272 Sonoma Near Caldwell Ranch. Comment
  CAS-BOT-BC20501  Carex densa Peter Rubtzoff 1974-6-2 7509 Sonoma Sonoma County Marshes. Upper Green Valley Marsh. Comment
  RSA758129  Carex densa Peter Rubtzoff 1954-6-6 1466 Sonoma Guerneville Marsh. Comment
  UC1133350  Carex densa H. S. Yates 1936-5-3 5575 Sonoma 1 mi NE of Petrified Forest 304 Comment
  CAS-BOT-BC20517  Carex densa John Thomas Howell 1935-5-5 12605 Sonoma Low field near Kenwood. Comment
  RSA758137  Carex dudleyi Peter Rubtzoff 1975-7-3 8148 Sonoma Kenwood Marsh. Comment
  RSA94279  Carex dudleyi Peter Rubtzoff 1951-6-16 245 Sonoma N half of lower Pitkin Marsh, SE of Forestville Comment
  CAS-BOT-BC19901  Carex echinata subsp. phyllomanica Peter Rubtzoff 1951-6-10 195 Sonoma The Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  UCR248916  Carex exsiccata Peter Rubtzoff 1959-4-18 4024 Sonoma Laguna de Santa Rosa, NE of Graton, c. 0.5 mi north of Guerneville Rd. crossing 21 Comment
  RSA0015631  Carex exsiccata Peter Rubtzoff 1958-5-17 3668 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Rd). Comment
  CAS-BOT-BC28327  Carex gracilior John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53970 Sonoma fairfield Osborn Preserve of the Nature Conservancy, 4.5 mi NE of Penngrove 457 Comment
  CAS-BOT-BC28330  Carex gracilior Henry Nicholas Bolander 1866-3-1 4635 Sonoma Petaluma. Comment
  UCD112446  Carex gracilior Peter Rubtzoff 1959-4-18 4034 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 0.5 mi. north of Guerneville Road crossing. Comment
  CAS-BOT-BC146597  Carex gynodynama John Thomas Howell 1947-6-5 23231 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC146614  Carex gynodynama A. A. Heller 1903-4-23 6605 Sonoma Fort Ross Comment
  CAS-BOT-BC21900  Carex harfordii Lewis S. Rose 1962-6-1 62065 Sonoma 1 mile NW of Freestone. 76 Comment
  CAS-BOT-BC242644  Carex harfordii Peter Rubtzoff 1957-5-4 3306 Sonoma Duncan Mills Marsh Comment
  UCR248920  Carex harfordii Peter Rubtzoff 1962-6-1 4867 Sonoma Freestone Marsh 79 Comment
  RSA0022360  Carex harfordii Peter Rubtzoff 1964-5-20 5304 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC422373  Carex hendersonii Peter Rubtzoff 1957-6-28 3387 Sonoma Duncans Mills Marsh. Comment
  HSC7137  Carex lanuginosa J. T. Howell, J. W. Stacey 1937-6-6 13041 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC311821  Carex lasiocarpa Peter Rubtzoff 1962-4-11 4795 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC419696  Carex lasiocarpa Peter Rubtzoff 1962-5-11 4820 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  RSA0034191  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncan Mills Marsh. Comment
  UCR249078  Carex leptopoda Peter Rubtzoff 1964-5-20 5323 Sonoma Bodega Bay Marsh 15 Comment
  JEPS128344  Carex mendocinensis Roger Raiche 2000-4-8 022 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1508  Carex nudata H. N. Bolander Apr 1864 3812 Sonoma Mark West Creek Comment
  UCD140692  Carex nudata Frederic Hrusa 1988-2-21 5500 Sonoma Sugarloaf Ridge State Park. Upper end of main valley in moist area along creek. 400 Comment
  UCR249339  Carex nudata Peter Rubtzoff 1952-6-3 1176 Sonoma Fitch Mountain Grove, near Healdsburg, along the Russian River 61 Comment
  CAS-BOT-BC119312  Carex obnupta Catherine Best 1981-6-5 s.n. Sonoma Ca 5 mi E of Stewart's Point on Stewart's Point Skaggs Creek Rd. Comment
  CAS-BOT-BC119284  Carex ovalis Peter Rubtzoff 1955-5-21 1861 Sonoma Forestville Marsh. N-facing slope bordering the marsh in the South. Comment
  CAS-BOT-BC119249  Carex pachystachya Lewis Samuel Rose 1962-6-1 62065 Sonoma Freestone Comment
  RSA0022359  Carex pachystachya Peter Rubtzoff 1964-5-20 5316 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC312706  Carex rostrata Peter Rubtzoff 1971-7-20 s.n. Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC331479  Carex rostrata Peter Rubtzoff 1971-6-29 6578 Sonoma Pitkin Marsh, near Forestville. 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
  CHSC98667  Carex serratodens Thomas W. Nelson; Jane P. Nelson 1986-5-11 8049 Sonoma North Coast Ranges. Along Geyserville-Stewardspoint road 3 miles west of bridge over Dry Creek. Comment
  UCD167210  Carex serratodens James Neilson 1977-4-24 3883 Sonoma Mayacmas Mountains, south side of Pine Mt. (Exact location unknown, coordinates estimated by label maker.) Comment
  UCR248724  Carex serratodens Peter Rubtzoff 1962-6-19 4933 Sonoma Occidental Marsh 305 Comment
  CAS-BOT-BC329282  Carex stipata Peter Rubtzoff 1960-5-22 4410 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville roads). Comment
  RSA796406  Carex stipata Peter Rubtzoff, Nancy Harrison 1978-5-20 9178 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  HSC7082  Carex subbracteata L. S. Rose 1964-6-3 64052 Sonoma N end of Bodega Bay swamp 2 Comment
  SEINET10847110  Carex subbracteata Lewis S. Rose 1939-5-14 Rose 39116 Sonoma Bodega. Wet fields. 30 Comment
  CAS-BOT-BC115827  Carex subfusca Bolander 3867 Sonoma Russian River Comment
  CAS-BOT-BC115529  Carex tumulicola Joseph Whipple Congdon 1880-5-31 s.n. Sonoma Santa Rosa 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
  CDA36813  Carthamus creticus D. B. Joley, W. J. Ferlatte 1976-1 24 Sonoma Petaluma Hill Rd. 0 Comment
  HSC33346  Carthamus creticus J. Shelgren, William J. Ferlatte 1973-7-11 1490 Sonoma SE of Santa Rosa Crane Canyon, 1 mile E of Petaluma Hill Rd. 52 Comment
  UCD129939  Carthamus leucocaulos P. F. Knowles 1969-9-23 18901 Sonoma 1 mile west of Asta. Comment
  CAS-BOT-BC257350  Castilleja Peter Rubtzoff; Nancy Harrison 1978-5-20 9189 Sonoma Cunningham Marsh area, north side of Blucher Creek Valley. Comment
  JEPS22230  Castilleja ambigua subsp. ambigua Rimo Bacigalupi with members of the California Botanical Society 1958-5-24 6361 Sonoma n of Sebastopol (ground above Pitkin Marsh); Vine Hill Region 60 Comment
  JEPS74987  Castilleja ambigua subsp. ambigua T. I. and F. M. Chuang 1975-7-5 7518 Sonoma s side Pitkin Marsh Comment
  UC584179  Castilleja ambigua subsp. ambigua J. Clausen 1935-5-24 1095 Sonoma 6.5 mi s Jenner (on the Bodega road) Comment
Read comments
Jan 8 2015
  UCD160862  Castilleja applegatei subsp. martinii James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3301 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD122304  Castilleja attenuata Collector unknown Date unknown s.n. Sonoma location unknown. Comment
  CDA41328  Castilleja densiflora T. C. Fuller 1977-4-21 20194 Sonoma Church of Christ property, 1825 Fulton Road, 0.5 km south of Piner Road, Santa Rosa. 0 Comment
  UC27170  Castilleja densiflora subsp. densiflora Harley P. Chandler 1900-5-25 706 Sonoma Bodega Bay Comment
  UC1567928  Castilleja foliolosa F. H. Utech 1986-5-13 86 -104 Sonoma ca 3.0 mi ne Cavedale (road from junction with CA Hwy 12) 250 Comment
  UCD151301  Castilleja foliolosa James A. Neilson Jr. 1974-7-26 2865 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  UCD122482  Castilleja foliolosa Frederica Bowcutt 1996-5-24 2168 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Adobe Canyon Road W of kiosk. 670 Comment
  UCD122506  Castilleja foliolosa G. E. Kerley 1966-4-3 66- 19 Sonoma Trinity Road, 7.3 miles southwest of Oakville. 304 Comment
  UCD122530  Castilleja foliolosa Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 64 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. 259 Comment
  CAS-BOT-BC243848  Castilleja latifolia Peter Rubtzoff 1952-6-10 1242 Sonoma Resort at east base of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC243853  Castilleja latifolia Ella Dales Cantelow 1939-4-10 2605 Sonoma About 1.6 mi. S of Russian River Bridge Comment
  JEPS35568  Castilleja wightii L. R. Heckard 1964-6-12 1386 Sonoma s side Russian River (just across bridge on State Hwy 1) Comment
  JEPS60456  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-30 6695 Sonoma Timber Cove; on Highway 1 Comment
  UC190979  Castilleja wightii Katharine Brandegee Jul 1905 Sonoma Bodega Comment
  RSA133101  Castilleja wightii Peter H. Raven, Richard Snow 1958-7-23 13688 Sonoma 2.6 miles north of Jenner. Comment
  HSC10890  Catapodium rigidum Leo Koch 1940-5-19 964 Sonoma 349 Second Ave., Santa Rosa Comment
  CAS-BOT-BC47798  Ceanothus John Thomas Howell 1935-5-5 12613 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC47803  Ceanothus John Thomas Howell 1935-5-5 12619 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC47805  Ceanothus James McMurphy 1909-5-29 s.n. Sonoma ridge south of the Geysers Comment
  CAS-BOT-BC56929  Ceanothus Walter Knight; Steve Edwards 1985-11-17 5185 Sonoma Franz Valley School Road, near old schoolhouse Comment
  CAS-BOT-BC83812  Ceanothus confusus D. O. Burge; Steven Kembel 2008-5-29 1003 c Sonoma Mayacmas Mountains, western slope of Mount Hood 560 Comment
  CAS-BOT-BC83850  Ceanothus confusus D. O. Burge 2007-4-10 833 a Sonoma SE flank of Mount Hood, near the junction of Bear Creek and Sonoma Creek 1000 Comment
  RSA21906  Ceanothus confusus J. T. Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC1254093  Ceanothus confusus J. A. Delapp 1964-6-5 75 Sonoma Dorman Canyon Ridge 289 Comment
  UC480609  Ceanothus confusus Carl Meyer 1928-3-3 306 Sonoma Santa Rosa Comment
  UCD111365  Ceanothus confusus Roger Raiche 1985-11-23 RR 50894 Sonoma west of Dry Creek Valley, Bradford Mountain. 371 Comment
  SEINET12211129  Ceanothus confusus Unknown 1985-1 50178 Sonoma W of Healdsburg, Dry Cr. Valley, N of Dorman Cyn 244 Comment
  UCD111374  Ceanothus confusus L. Whitney Date unknown s.n. Sonoma University Hill. Comment
  CAS-BOT-BC49199  Ceanothus cuneatus A. A. Heller; H. E. Brown 1902-3-12 5045 Sonoma Sonoma Creek, Eastern Base of Mt. Hood Comment
  UCD111749  Ceanothus cuneatus G. F. Hrusa 1995-4-2 12041 Sonoma along Franz Valley School Road, approximately 1.25 miles NW of Napa/Sonoma county line. 250 Comment
  CDA11330  Ceanothus divergens G. F. Hrusa 1995-4-2 12040 Sonoma North Coast Biodiversity Arena; Franz Valley School Rd. approx. 1 mile NW of Napa/Sonoma county line. Comment
  UC909729  Ceanothus divergens Milo S. Baker 1950-5-20 12226 Sonoma Coleman Ranch summit above; Hope Valley Comment
  POM136437  Ceanothus foliosus A. A. Heller, H. E. Brown 1902-5-29 s.n. Sonoma Mt. Hood. Comment
  CAS-BOT-BC49906  Ceanothus foliosus var. foliosus Walter Knight; Cliff Schmidt 1987-2-27 6057 Sonoma Cavedale Road 274 Comment
  JEPS25144  Ceanothus foliosus var. foliosus G. Thomas Robbins 1959-5-16 4014 Sonoma Spring Mountain Road, between Calistoga Road and Sonoma-Napa County line Mayacamas Mountains 518 Comment
  CAS-BOT-BC49908  Ceanothus foliosus var. foliosus Michener; Bioletti 1892-5-1 s.n. Sonoma S.L.G. Comment
  UCD112132  Ceanothus foliosus var. vineatus Ray Prag 1970-6-9 s.n. Sonoma Vine Hill School Road, 3/4 mile east of Vine Hill Road. Comment
  CAS-BOT-BC50013  Ceanothus gloriosus John Thomas Howell 1937-4-11 12907 Sonoma M.S. Baker place, SW slope of Mt. Hood Comment
  CAS-BOT-BC50015  Ceanothus gloriosus John Thomas Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC870562  Ceanothus gloriosus John Thomas Howell 1934-3-3 11742 Sonoma 8 miles S of Stewart's Point Comment
  JEPS19405  Ceanothus gloriosus var. exaltatus G. Thomas Robbins 1940-3-22 300 Sonoma about 8.5 mi W of Santa Rosa (along Guernville Road) 45 Comment
  POM215713  Ceanothus gloriosus var. exaltatus Jens Clausen 1933-3-26 742 Sonoma Southern boundary of the Frey Brothers Ranch, about 10 miles west of Santa Rosa on the Santa Rosa-Graton Road (off hwy) Comment
  UC1280768  Ceanothus gloriosus var. gloriosus H. E. McMinn 1938-6-20 5129 Sonoma Stewarts Point to Gualala. Comment
  CAS-BOT-BC50953  Ceanothus integerrimus Brandegee 1890-5-1 22 Sonoma Geysers Comment
  RSA1148  Ceanothus jepsonii B. D. Stark 1929-7-22 1381 Sonoma Sonoma-Mendocino County line. Comment
  SD56786  Ceanothus jepsonii Darley F. Howe 1963-5-23 3531 Sonoma 4 mi. no. of Cloverdale on #128 334 Comment
  UC766014  Ceanothus jepsonii R. F. Hoover 1939-4-18 4042 Sonoma Occidental Comment
  UCD112055  Ceanothus jepsonii J. Adams; J. Weick 1993-5-8 269 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Comment
  CAS-BOT-BC63516  Ceanothus oliganthus var. sorediatus J. Clausen 1935-5-23 1073 a Sonoma 0.3 mi. n. of entrance to Petrified Forest. Comment
  CAS-BOT-BC63518  Ceanothus oliganthus var. sorediatus K. Wagnon 1939-5-13 176 Sonoma Growing along w. side of Science Building on Santa Rosa Junior College Campus with stake #561. Plant came from Seaview Comment
  CAS-BOT-BC51881  Ceanothus parryi Tom Craig 1941-6-18 s.n. Sonoma Trinity Road, west slope, between Glen Ellen and Rutherford Comment
  UC73364  Ceanothus parryi Milo S. Baker May, 1899 Sonoma near Occidental; Green Valley Comment
  CAS-BOT-BC52123  Ceanothus prostratus Carl Meyer 1928-3-3 306 Sonoma Santa Rosa Comment
  CAS-BOT-BC52125  Ceanothus prostratus J. Clausen 1933-3-26 740 Sonoma Rincon Range east of Santa Rosa Comment
  UC1614462  Ceanothus purpureus Charles M. Belshaw 1936-3-8 1582 Sonoma 3/4 mi. n. Annadel (n.w. of Kenwood) 144 Comment
  CAS-BOT-BC53002  Ceanothus sonomensis John Thomas Howell 1937-4-11 12905 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC1281389  Ceanothus sonomensis H. E. McMinn 1941-4-27 5324 Sonoma Trinity road, Mt. Hood Range. Comment
  CAS-BOT-BC52399  Ceanothus velutinus Walter Knight; Irja Knight 1963-12-27 468 Sonoma Summit. Pine Flat Rd. Comment
  UCD130048  Centaurea melitensis Mary M. Hektner; Sue Dakuazku, Cathy Hendel 1974-7-3 111 Sonoma Unit 15 Owners' Map, Sea Ranch, near State Highway 1. 30 Comment
  CAS-BOT-BC277251  Centaurea solstitialis Peter Rubtzoff 1953-11-1 1438 Sonoma Vacation Beach, near Guerneville. Bank of Russian River Comment
  CAS-BOT-BC277255  Centaurea solstitialis G. DeNevers 1981-6-20 1584 Sonoma Pepperwood Ranch. Leslie Creek Comment
  UCD130101  Centaurea solstitialis Gerry North 1993-4 28 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 and 18 air miles NW of Napa. At lower camping area. 60 meters south of vista point at old slide, northeast side of road. 335 Comment
  JEPS79686  Centaurium tenuiflorum Nancy Harrison 1980-7-19 2144 Sonoma n of Kirby Lane (and e of S Wright Rd, air center property); Santa Rosa Comment
  POM130633  Centaurium trichanthum A. A. Heller 1902-6-25 5764 Sonoma Santa Rosa Comment
  CAS-BOT-BC288814  Centromadia fitchii John Thomas Howell 1930-9-14 5485 Sonoma 6 miles N of Geyserville Comment
  UCD166220  Centromadia pungens subsp. pungens Peter Rubtzoff 1970-5-30 6252 Sonoma 5 miles north of Sears Point. Comment
  UCD161264  Cerastium James A Neilson Jr.; Teresa A. Sholars 1976-5-11 3693 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-BC251269  Cerastium Peter Rubtzoff 1955-5-7 1826 Sonoma Guerneville Marsh. Comment
  UCD98062  Cerastium glomeratum Peter Rubtzoff 1951-6-16 241 Sonoma Pitkin Marsh, near Forestville. Western branch of upper marsh. Comment
  CAS-BOT-BC388438  Cerastium glomeratum Peter Rubtzoff 1952-3-23 902 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  CAS-BOT-BC400226  Ceratophyllum demersum Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills Comment
  CAS-BOT-BC207632  Cercis occidentalis Peter Fritsch 1999-10-3 1749 Sonoma 0.5 mi W of the gate to the geothermal plant along Geysers Resort Road. Comment
  CAS-BOT-BC135415  Cercocarpus betuloides var. betuloides A. A. Heller; H. E. Brown 1902-3-25 5147 Sonoma Near Mark West Springs Comment
  CAS-BOT-BC135420  Cercocarpus betuloides var. betuloides J. Clausen 1933-3-25 734 Sonoma Santa Rosa Creek/Canyon, on south exposed slopes. 182 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
  UCD130399  Chamaemelum fuscatum Rimo Bacigalupi 1948-4-4 2870 Sonoma about 2 miles south of Asti, along U.S. Highway 101. Comment
  CAS-BOT-BC279786  Chamaemelum fuscatum M. S. Baker 1940-5-18 9505 Sonoma 101 n. of Cloverdale on s. slope of hill near top of Swiss Italian Colony at Asti Comment
  UCD130400  Chamaemelum fuscatum Philip A. Munz 1952-3-23 17351 Sonoma 2 miles south of Asti Vineyard (Italian Swiss Colony). Comment
  RSA432493B  Chamaesyce serpillifolia L. S. Rose 1935-9-11 35624 Sonoma 2 mi N of Healdsburg. 40 Comment
  UC73437  Chamaesyce serpyllifolia Miss Alice King Sept. 1896 Sonoma near Healdsburg Comment
  CAS-BOT-BC68222  Cheilanthes gracillima James Jokerst 1985-5-29 2391 Sonoma Whispering Pines Quad. near Cobb Mountain 1126 Comment
Read comments
Jan 26 2018
  CAS-BOT-BC166903  Chenopodium Peter Rubtzoff 1973-10-10 7340 Sonoma Tributary of Americano Creek, 2 miles west of Bloomfield. Comment
  UCD165780  Chenopodium Peter Rubtzoff 1972-7-22 6831 Sonoma Laguna, Chileno Valley. Comment
  UCD97920  Chenopodium berlandieri Mary M. Hektner 1974-7-24 163 A Sonoma west end of Wildmoor Reach in Island of cypress; Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET11933366  Chenopodium berlandieri var. zschackei W. Knight, Knight, I.; Edwards, S. W. 1984-1 5042 Sonoma Willow Creek between Denman Flat and Corona Road near Petaluma Comment
  UCR45078  Chenopodium botrys L. F. LaPre 1986-7-29 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  UC7286  Chenopodium botrys J. Burtt Davy Aug. 1896 4138 Sonoma Russian River Comment
  CAS-BOT-BC499254  Chlorogalum pomeridianum Peter Rubtzoff 1961-10-18 4773 Sonoma Pitkin Marsh, near Forestville, western branch of the Upper Marsh Comment
  JEPS51212  Chlorogalum pomeridianum var. pomeridianum Glen Keator 1967-6-26 SN 3 Sonoma 1/2 mi e Occidental Comment
  RSA143967  Chlorogalum pomeridianum var. pomeridianum Roxana S. Ferris, Laura Lorraine 1961-6-14 13527 Sonoma Junction of Bittner Rd. with Joy Rd. between Occidental and Bodega. Comment
  CAS-BOT-BC191512  Chorizanthe cuspidata var. villosa H. D. Ripley; R. C. Barneby 1945-6-22 6950 Sonoma Bodega Bay 15 Comment
  UC1094020  Chorizanthe cuspidata var. villosa Lewis S. Rose 1956-7-16 56128 Sonoma Bodega Point 9 Comment
  UCD150645  Chorizanthe cuspidata var. villosa Lisa McNair 1974-5-11 80 Sonoma Bodega Bay, just outside the University of California Bodega Marine Laboratory. 6 Comment
  CAS-BOT-BC252850  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1925-5-9 11750 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC173825  Chrysanthemum Peter Rubtzoff 1970-9-3 6369 Sonoma Marsh off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  RSA8361  Chrysanthemum segetum L. S. Rose 1933-5-9 33154 Sonoma Bodega Bay. Comment
  RSA130893  Chrysanthemum segetum E. K. Balls 1958-7-20 23582 Sonoma State Hwy. 1, Bodega Bay to Jenner 46 Comment
  UCD110103  Chrysolepis chrysophylla var. minor J. M. Tucker 1951-6-26 2143 Sonoma Near Top of the World Ranch, ca. 5 miles due east of Glen Ellen. Comment
  CAS-BOT-BC285250  Cichorium intybus W. W. Carruth 1900-7-1 s.n. Sonoma Near Healdsburg Comment
  UCD148368  Cirsium arvense Peter Rubtzoff 1955-8-13 2049 Sonoma Willow Creek Marsh. Comment
  RSA0015627  Cirsium brevistylum Peter Rubtzoff 1960-6-11 4499 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC278067  Cirsium douglasii var. breweri Milo S. Baker 1926-1-1 229 c-Local Sonoma Hood Mt 609 Comment
  CAS-BOT-BC280000  Cirsium douglasii var. douglasii H. D. Ripley; R. C. Barneby 1945-6-22 6949 Sonoma Bodega Bay 6 Comment
  CDA18867  Cirsium douglasii var. douglasii R. Breckenridge 1999-6-14 PDR 909431 Sonoma North Coast Ranges; Hwy 1, near Salmon Creek Beach, Salmon Creek/ Bodega. 0 Comment
  CDA1392  Cirsium occidentale var. coulteri Robin Breckenridge 1986-5-14 s.n. Sonoma Bodega Bay; Bodega Dunes State Campground. Comment
  CAS-BOT-BC285702  Cirsium occidentale var. occidentale P. G. Connors 1990-5-18 10 Sonoma Bodega Head. BMR Comment
  CAS-BOT-BC280371  Cirsium occidentale var. venustum A. A. Heller 1902-6-24 5753 Sonoma Near Burke's Sanitarium Comment
  UC76019  Cirsium occidentale var. venustum Milo S. Baker 1898-6-11 658 Sonoma Little Sulphur Creek Comment
  UCD158724  Cirsium occidentale var. venustum Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Ca. 1.5 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd. Elevation estimated by label maker. 822 Comment
  CAS-BOT-BC280366  Cirsium occidentale var. venustum Walter Knight; Irja Knight 1967-7-24 1966 Sonoma Between Santa Rosa and St. Helena on St. Helena Road about 2 miles from Napa County line Comment
  UC30823  Cirsium quercetorum W. A. Setchell 1897-6-1 Sonoma Fort Ross Comment
  UC589641  Cirsium quercetorum F. F. Barbour 1938-4-28 Sonoma Sonoma Valley Comment
  CAS-BOT-BC285747  Cirsium remotifolium Greg de Nevers 1997-6-7 11017 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. On Ken's Restaurant Trail 457 Comment
  RSA73992  Cirsium remotifolium var. odontolepis M. S. Baker 1931-5-22 5209 Sonoma Bennett Valley Road, south of Weavers. Comment
  CAS-BOT-BC285895  Cirsium vulgare Peter Rubtzoff 1951-8-4 568 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  UCD165170  Clarkia Peter Rubtzoff 1974-5-26 7498 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  CHSC27730  Clarkia amoena Coleta Lawler 1978-7-13 297 Sonoma Along Hwy 1, 3.2 to 3.6 miles north of Jenner, near Russian Gulch; on roadcut. Comment
  SD39468  Clarkia amoena subsp. amoena Edith A. Purer 1932-7-14 Sonoma Between Bodega Bay and Santa Rosa Comment
  RSA51337  Clarkia amoena subsp. amoena Joanne Taylor 1941-7-13 11 -a Sonoma Canyon about 10 miles from Bodega Head. Comment
  CAS-BOT-BC163514  Clarkia amoena subsp. huntiana Walter Knight; Irja Knight 1963-8-13 197 Sonoma Corner Roblar & Steinbeck Rds Comment
  RSA108243  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-15 434 Sonoma Highway 1, 3.7 miles south of Fort Ross Historical Monument Comment
  CAS-BOT-BC172212  Clarkia concinna Roxana S. Ferris; Laura Lorraine 1961-6-15 13550 Sonoma Green Valley Road, 0.8 mi. E of junction with Harrison Grade Road Comment
  CDA11250  Clarkia concinna G. F. Hrusa, H. Townsend 1994-5-29 11873 Sonoma Austin Creek State Recreation Area; Gilliam Creek Canyon immediately downslope of Bullfrog Pond Campground. 0 Comment
  LA206049  Clarkia concinna H. Lewis; 1951-7-10 868 Sonoma 0.7 mi W of Mark West Spring Comment
  SEINET6165015 Image available Clarkia concinna Unknown 1981-5-18 s.n. Sonoma Pine Mountain turnoff, Ida Clayton Rd. 914 Comment
  JEPS85536  Clarkia concinna subsp. concinna L. R. Heckard with R. Bacigalupi and A. Q. Howard 1981-5-19 5508 Sonoma 2.5 mi from Mendocino County line (road from Cloverdale to Boonville, near s base of grade) Comment
  UCR222559  Clarkia concinna subsp. concinna George K. Helmkamp, E. A. Helmkamp 2010-6-5 16242 Sonoma North Coast Ranges, River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guerneville on slope above the Russian River 12 Comment
  UCD104045  Clarkia davyi Frederica Bowcutt 1984-6-23 417 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1, N of Gerstle Cove about 1/8 mile. 15 Comment
  UCD104539  Clarkia gracilis Frederica Bowcutt 1994-5-21 1803 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, about 10 air miles E of Santa Rosa, about 1.5 air miles N of Kenwood, about 18 air miles NW of Napa. Along meadow trail, approx. 1/4 mile from trailhead. 1300 Comment
  CDA15740  Clarkia gracilis subsp. sonomensis G. F. Hrusa 1998-6-14 14592 Sonoma Knights Valley; side of Ida Clayton Rd., ~1.5 mi. E of Hwy. 128, NW shoulder of Mt. St. Helena. Comment
  JEPS43826  Clarkia gracilis subsp. sonomensis C. L. Hitchcock 1928-6-7 18 Sonoma 1/2 mi e Glen Ellen 30 Comment
  UC725843  Clarkia gracilis subsp. sonomensis A. A. Heller 1941-6-4 16162 Sonoma several mi e Santa Rosa (on the road to Sonoma) Comment
  CAS-BOT-BC163144  Clarkia gracilis subsp. sonomensis W. W. Carruth 1899-7-1 s.n. Sonoma Healdsburg Comment
  UCD70268  Clarkia gracilis subsp. sonomensis D. Sanchez-Mata 1998-7-12 s.n. Sonoma Alderglen Springs-Cloverdale. 320 Comment
  CAS-BOT-BC163464  Clarkia purpurea subsp. quadrivulnera Alice Eastwood 1915-6-5 4610 Sonoma Petrified Forest along road Comment
  JEPS43725  Clarkia purpurea subsp. viminea E. V. Ferguson 1919-6-11 226 Sonoma near Sebastopol Comment
  CAS-BOT-BC164746  Clarkia rhomboidea Milo S. Baker 1926-4-10 220 a - Son. Ser. Sonoma Mt. St. Helena - 1 mi. S.E. of Inn Comment
  CAS-BOT-BC165675  Clarkia unguiculata A. A. Heller 1902-6-11 5686 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  SEINET12194280  Clarkia unguiculata F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -196 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 740 Comment
  UC1136706  Claytonia exigua subsp. exigua E. Armstrong 1934-3-26 926 Sonoma 2 mi nw Camp Meeker; Sebastopol Quad. 121 Comment
  CAS-BOT-BC439409  Claytonia gypsophiloides R. Bacigalupi 1948-3-6 2855 Sonoma 2 mi. w. of Skaggs Springs Comment
  JEPS128323  Claytonia gypsophiloides Roger Raiche 2000-3-11 004 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  CAS-BOT-BC439399  Claytonia gypsophiloides Peter Rubtzoff 1957-5-26 3352 Sonoma Near Occidental - Graton road, 2.7 mi. east of Occidental. Comment
  CAS-BOT-BC439410  Claytonia gypsophiloides Elmer I. Applegate 1934-3-25 8846 Sonoma Sausal Creek, western foothills of the Mayacama Mountains Comment
  RSA304000  Claytonia gypsophiloides J. R. Shevock 1972-3-28 1486 Sonoma Road bank Hwy 128, N. of Cloverdale. 91 Comment
  SBBG106815  Claytonia gypsophiloides K. L. Chambers 1978-4-29 4466 A Sonoma Hwy 128, the Cloverdale to Ft Bragg rd, 3.8 mi W of its jct with Hwy 101 at Cloverdale Comment
  SEINET7075542  Claytonia parviflora A. G. Vestal 1955-5-6 s.n. Sonoma About 2.5 miles east of Occidental on the Occidental Road. 38? deg. 24' 30" North Latitude, -122? deg. 54' 3" West Longitude. UTM Zone 10, 508655mE, 4250919mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  JEPS117129  Claytonia perfoliata Peter Warner 2010-3-29 122 Sonoma 1670 Bloomfield Road, approx. 3 km S of center Sebastopol Comment
  CAS-BOT-BC439956  Claytonia perfoliata subsp. mexicana A. A. Heller; H. E. Brown 1902-3-16 5077 Sonoma Russian River, near Trenton Comment
  CAS-BOT-BC92747  Clematis ligusticifolia Peter Rubtzoff 1962-9-16 5087 Sonoma Vacation Beach, 1.5 mile below Guerneville. Along Russian River. Comment
  UC302140  Clematis ligusticifolia Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  RSA123629  Clintonia andrewsiana Allison Hastings 1940-4-12 s.n. Sonoma Coast Highway north of Fort Ross. Comment
  UCD13250  Clintonia andrewsiana Neil Miller 1973-5-26 89 Sonoma Along Stewarts Point Rc., 4 miles east of Stewarts Point. 152 Comment
  UC26616  Collinsia greenei H. N. Bolander 1866-1 3968 Sonoma The Geysers Comment
  UCD167317  Collinsia greenei James Neilson 1977-6-7 3909 Sonoma Mayacmas Mountains, about 1/3 mi south east Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  UCR255041  Collinsia heterophylla Greg de Nevers 1998-4-21 11157 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  RSA63335  Collinsia heterophylla Milo S. Baker 1950-6-12 12279 Sonoma Hillside opposite Maplewood, near Kenwood. Comment
  OBI49261  Collinsia sparsiflora Michener & Bioletti, Bioletti April 1893 s.n. Sonoma Kenwood Comment
  POM14827  Collinsia sparsiflora var. arvensis D. C. Michener, F. T. Bioletti 1893-04 s.n. Sonoma Kenwood. Comment
  UC614984  Collinsia sparsiflora var. arvensis Beryl O. Schreiber 1932-4-3 194 Sonoma road to Petrified Forest Comment
  UC672477  Collinsia sparsiflora var. arvensis H. L. Mason 1928-4-8 4298 Sonoma fields near Sebastopol Comment
  POM182699  Collinsia sparsiflora var. arvensis D. D. Keck 1931-4-2 999 Sonoma Boyes Springs 30 Comment
  RSA41892  Collinsia sparsiflora var. arvensis H. C. Cantelow 1936-4-11 1221 Sonoma Bet. Shellville and Napa. Comment
  UC353937  Collinsia sparsiflora var. collina unknown 1928-4-20 2976 b Sonoma Rincon Valley Comment
  UC1238963  Collinsia tinctoria Freed W. Hoffman 1947-5-18 770 Sonoma Dutch Bill Creek near Camp Meeker (North Coast Ranges); , Dutch Bill Creek Comment
  UC1238979  Collinsia tinctoria Freed W. Hoffman 1948-8-2 2356 Sonoma Spring Mountain Road to St. Helena near summit St. Helena; North Coast Ranges, Spring Mountain Road 609 Comment
  UCR30587  Collomia diversifolia John C. Roos 1950-7-22 4873 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  JEPS46209  Collomia grandiflora Eleanor Armstrong 1932-5-25 476 Sonoma 2 mi n Camp Meeker (towards Monte Rio, dry hillside) 121 Comment
  UC72070  Collomia heterophylla Milo S. Baker 1898-4-3 16 Sonoma Guerneville to Cazadero Comment
  CAS-BOT-BC229502  Collomia rawsoniana Walter Knight; Irja Knight; Tiffany Knight 1985-7-15 5144 Sonoma From garden of Knight, Petaluma Comment
  JEPS23537  Cordylanthus pilosus subsp. pilosus Peter H. Raven, R. Snow 1958-7-23 13690 Sonoma Occidental Comment
  JEPS28863  Cordylanthus pilosus subsp. pilosus Roxana S. Ferris and Laura Lorraine 1960-9-30 13594 Sonoma Upper Harrison Grade Comment
  RSA185771  Cordylanthus pilosus subsp. pilosus Roxana S. Ferris, Laura Lorraine 1962-9-30 13594 Sonoma Upper Harrison Grade immediately beyond the Cupressus sargentii area. Comment
  UC103416  Cordylanthus pilosus subsp. pilosus Michener and Bioletti 1891-9-4 1431 a Sonoma s Los Guilucos Comment
  JEPS33010  Cordylanthus tenuis subsp. brunneus Freed W. Hoffman 1947-8-4 1421 Sonoma Mt. St. Helena North Coast Ranges 609 Comment
  UC1239007  Cordylanthus tenuis subsp. capillaris Freed W. Hoffman 1946-8-14 784 Sonoma e Camp Meeker (on serpentine island); North Coast Ranges Comment
  CAS-BOT-BC101571  Corethrogyne filaginifolia L. R. Abrams 1920-7-3 7610 Sonoma near Stewarts Point Comment
  RSA0034034  Cornus Peter Rubtzoff 1987-7-18 9797 Sonoma Russian River at Forest Hills, ca. 5.5 miles east of Guerneville. Along river, off Summerhouse Park Road, 0.2 miles west of Forest Hills Road. Comment
  UCR244638  Cornus Peter Rubtzoff 1973-8-31 7290 Sonoma Upper Green Valley Marsh, slope of Green Valley Road 164 Comment
  UC1090394  Coronopus didymus Milo S. Baker May 1957 13095 Sonoma Junior College at Santa Rosa, next to Industrial Arts Building Junior College at Santa Rosa; North Coast Ranges, Junior College at Santa Rosa Comment
  CAS-BOT-BC376394  Cotoneaster Greg de Nevers 1994-3-26 10518 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Garrison Canyon. 457 Comment
  RSA105374  Cotula australis Mrs Huffine 1932-5-8 5898 Sonoma Vine Hill Region Comment
  UCD130896  Cotula coronopifolia Charles B. Heiser Jr. 1946-3-29 1891 Sonoma on road to Sonoma from Napa, Hwy 12. Comment
  CAS-BOT-BC427657  Crassula aquatica Peter Rubtzoff 1970-10-3 6406 Sonoma Near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC427662  Crassula aquatica Peter Rubtzoff; H. A. Froebe 1971-5-30 6493 Sonoma 4.25 mi. west of Glen Ellen on Bennett Valley Road Comment
  UCD13110  Crassula connata Eileen F. Chun 1974-5-11 78 Sonoma Sonoma CO. Northside of Bodega Head. Sea level. Comment
  UC750804  Crocanthemum scoparium var. scoparium Charles B. Heiser Jr. 1946-5-19 1744 Sonoma w Santa Rosa; Vine Hill Comment
  CDA36048  Crupina vulgaris CDFA Staff Sep 1976 Sonoma Santa Rosa. 0 Comment
  CAS-BOT-BC190146  Crypsis schoenoides Peter Rubtzoff 1987-9-27 9855 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville. Comment
  CAS-BOT-BC366890  Crypsis schoenoides Greg de Nevers 1997-9-29 11098 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  UCD59946  Crypsis schoenoides David L. Morgan 1960-8-1 s. n. Sonoma 1/2 mile south of Penngrove on Hwy. 101. Willow Creek. Comment
  UC908734  Cryptantha muricata Milo S. Baker 1947-5-7 11735 Sonoma near base of Sugar Loaf (sw slope of Hood Mt.); Hood Mt. 365 Comment
  CAS-BOT-BC164356  Cucurbita Peter Rubtzoff 1958-8-9 3847 Sonoma Laguna de Santa Rosa, N of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC85460  Cupressus sargentii John Thomas Howell 1931-9-26 8092 Sonoma Serpentine outcrop 2 miles from Monte Rio on road to Camp Meeker Comment
  CAS-BOT-BC85471  Cupressus sargentii Carl Brandt Wolf; E. R. Johnson 1934-10-13 2140 Sonoma 2 8/10 mi. from Camp Meeker on road to Monte Rio 60 Comment
  CAS-BOT-BC376333  Cuscuta Greg de Nevers 1996-11-10 10891 Sonoma Just north of Highway 37 opposite Port Sonoma, Lower Ranch. 0 Comment
  JEPS120456  Cuscuta Daniel Slakey 2013-8-11 62 Sonoma Salt Point State Park, just north of the parking area at Salt Point. Comment
  UCR280133  Cuscuta pentagona Peter Rubtzoff 1970-9-8 6384 Sonoma [River Road], sluggish tributary of Mark West Creek, c. 3 miles west of Fulton 24 Comment
  UC31350  Cynara cardunculus subsp. cardunculus unknown 1899-7-9 116 Sonoma Sebastopol Comment
  UC1026477  Cynodon dactylon Peter Rubtzoff 1951-7-14 425 Sonoma Pitkin Marsh, southern half of Lower Marsh; near Forestville Comment
  UCD37117  Cynodon plectostachyus Beecher Crampton 1957-5-15 4042 Sonoma 4-5 miles southwest of Healdsburg, Foreman Lane, Frank C. Grace Ranch. 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
  SBBG28837  Cynoglossum grande I. L. Wiggins 1932-3-12 5760 Sonoma between Knight's Valley and Franz Valley Comment
  SEINET6180923  Cynosurus cristatus Fred W. Hoffman 1943-6-20 2061 Sonoma Eckert Ranch near Salt Point, Sonoma Coast.; 0 Comment
  CAS-BOT-BC190475  Cynosurus echinatus Roxana S. Ferris; Laura Lorraine 1948-6-9 11663 Sonoma 11 miles from Geyserville on road to Kellogg. Comment
  UCD60154  Cynosurus echinatus Freed W. Hoffman 1941-6-3 s. n. Sonoma Near Guerneville. Comment
  UCR248758  Cynosurus echinatus Peter Rubtzoff 1978-6-11 9209 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley 35 Comment
  CAS-BOT-BC114513  Cyperus eragrostis Peter Rubtzoff 1951-7-14 452 Sonoma Pitkin Marsh, near Forestville. Damp, open area between the Upper and the Lower marshes. Comment
  UC727744  Cyperus eragrostis Milo S. Baker 1946-8-17 11556 Sonoma at Sebastopol Crossing La Laguna Comment
  RSA44397  Cyperus eragrostis Milo S. Baker 1937-9-20 6037 Sonoma 4 miles southeast of Somona on Vineburg - Napa Road Comment
  UCD69401  Cyperus niger J. Thoits 1997-10-15 Sonoma Area north of Lakewood Hills, a gated community in Windsor (north of Santa Rosa), approximately 1-2 miles from Hwy 101 on the east side of the freeway. Comment
  CAS-BOT-BC70724  Cystopteris fragilis A. A. Heller 1902-6-26 s.n. Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  JEPS86300  Danthonia californica Jack and Betty Guggolz 1989-4-29 1002 Sonoma Comment
  RSA785374  Danthonia californica Peter Rubtzoff 1971-6-5 6508 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Road. Comment
  UCD60480  Danthonia californica B. Crampton 1955-6-17 2960 Sonoma 4.5 miles east of Fort Ross. Comment
  SEINET7042681  Danthonia californica A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  UC1023587  Danthonia californica Virginia Bufford 1936-5-14 282 Sonoma Sonoma Mt. Rd. about 10 mi from Santa Rosa Comment
  UCD60499  Danthonia californica R. Tofsrud 1947-6-16 s.n. Sonoma 1 mi. N. of Valley Ford. Comment
  SEINET10912493  Danthonia californica var. americana B. Crampton 1963-5-27 Crampton 6811 Sonoma Alexander Valley, state Hwy. 128, ca. 8 miles SE of Geyserville. Roadside ditch at base of foothill slope. Comment
  UCD32527  Danthonia californica var. americana Beecher Crampton 1954-5-9 1838 Sonoma Sonoma County, road to Santa Rosa, 4 miles west of Calistoga. Comment
  CAS-BOT-BC154116  Datura Peter Rubtzoff 1953-11-1 1437 Sonoma Vacation Beach, near Guerneville, along Russian River Comment
  SJSU396  Daucus carota A. W. Jacobs 1938-6-15 Sonoma W bank Russian R near Hilton Comment
  UC804504  Delphinium bakeri Milo S. Baker May 1939 9489 Sonoma Coleman Valley, Sonoma Co. Comment
  RSA31776  Delphinium decorum A. A. Heller 1938-5-14 15089 Sonoma East of Bodega Bay. Comment
  CAS-BOT-BC10341  Delphinium hesperium Joseph Whipple Congdon 1880-6-1 s.n. Sonoma Santa Rosa Comment
  UC1299394  Delphinium hesperium subsp. hesperium Freed W. Hoffman 1950-4-27 3475 Sonoma near Hacienda (Roy Litton Ranch); North Coast Ranges 304 Comment
  CAS-BOT-BC10129  Delphinium luteum Ella D. Cantelow 1940-4-6 4272 Sonoma W. of Bodega, Hwy. 1 Comment
  JEPS23518  Delphinium luteum Vina Wiley Kraeger 1923-4-1 Sonoma Bodega Comment
  SEINET3159607  Delphinium luteum L. S. Rose 1939-1 Sonoma Comment
  UC854139  Delphinium luteum L. S. Rose 1939-5-14 39120 Sonoma 1 mi. E of Bodega Bay, Sonoma Co. Comment
  UC906500  Delphinium luteum Joseph Ewan 1935-5-12 9229 Sonoma Bodega Bay road 1 1/2 mi w Bodega Comment
  CAS-BOT-BC8001  Delphinium nudicaule J. H. Thomas 1955-5-22 5186 Sonoma About 2.7 miles west of Sonoma-Napa County line, about 8 miles northeast of Santa Rosa 365 Comment
  UC635360  Delphinium nudicaule H. L. Mason 1928-4-8 4287 Sonoma sea bluff two mi n Fort Ross Comment
  UCD95886  Delphinium nudicaule Charles B. Heiser Jr. 1946-4-13 1726 Sonoma Above Russian River, 3 miles N. of Jenner. Comment
  JEPS86296  Delphinium patens Jack and Betty Guggolz 1989-5-5 1009 Sonoma Comment
  CAS-BOT-BC121725  Delphinium patens subsp. patens Gregory Clark de Nevers 1981-5-7 994 Sonoma Pepperwood Preserve, Hansel's Lake Comment
  CAS-BOT-BC7768  Delphinium variegatum A. A. Heller; H. E. Brown 1902-4-16 5310 Sonoma Fields east of Santa Rosa Comment
  CAS-BOT-BC7774  Delphinium variegatum Volney Rattan 1878-1-1 s.n. Sonoma Vaca Val. Comment
  UC467783  Delphinium variegatum subsp. variegatum H. P. Chandler 1907-4-20 7518 Sonoma Eldridge Comment
  UC703181  Delphinium variegatum subsp. variegatum John Thomas Howell 1941-4-5 16175 Sonoma 1 mi s El Verano Comment
  OBI57152  Deschampsia cespitosa David J. Keil, with V. L. Holland, L. D. Oyler, G. F. Hrusa, G. L. Stebbins, et al. 1994-6-5 24501 Sonoma Salt Point State Park east of Highway 1 near junction with Kruse Ranch Road Comment
  UC573999  Deschampsia cespitosa subsp. cespitosa H. S. Yates 1936-5-16 5605 Sonoma 2 mi. s.e. Forestville (Pitkin Marsh); Sebastopol Quad. Comment
  CAS-BOT-BC192605  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1947-6-5 23245 Sonoma Cunningham Marsh Comment
  UCD165167  Deschampsia danthonioides Peter Rubtzoff 1974-5-26 7494 Sonoma Todd Road 1.5 mi. from Hwy. 116 and 0.5 mi. from Llano Road. Comment
  CDA34803  Deschampsia danthonioides Peter Warner 2010-5-6 147 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall. Comment
  SEINET10662640  Deschampsia danthonioides P. Rubtzoff 1969-6-14 Rubtzoff 6084 Sonoma 6.5 mi. northeast of Penngrove on Lichau Road. 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-BC201962  Deschampsia elongata Peter Rubtzoff 1962-10-9 s.n. Sonoma Russian River Mouth Marsh Comment
  POM207093  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  CAS-BOT-BC383034  Deschampsia elongata Greg de Nevers 1998-6-15 11288 Sonoma CYO Camp on Bohemian Highway. Comment
  RSA0056433  Deschampsia elongata Greg de Nevers 1996-6-17 10832 Sonoma CYO camp south of Occidental on Bohemian Hwy. 121 Comment
  SEINET238950 Image available Dichanthelium acuminatum subsp. thermale Beecher Crampton 1969-7-14 8493 a Sonoma The Geysers 12 miles (direct line) east of Colverdale. North slope of well above Geyser Creek. 494 Comment
  SEINET242425 Image available Dichanthelium acuminatum subsp. thermale Beecher Crampton 1964-8-18 7139 f Sonoma NE Sonoma Co, The Geysers, 12 mi east of Cloverdale, ca. 1.2mi E of Geyser Resort area, slope of steam well no. 10 494 Comment
  UC1084355  Dichelostemma capitatum G. Thomas Robbins 1937-3-25 13 Sonoma 8-10 mi e Santa Rosa; Santa Rosa Creek Canyon Comment
  SEINET12050380  Dichelostemma capitatum F. H. Utech 1988-1 88 -195 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh & adjoining meadows 10 Comment
  SEINET12053848  Dichelostemma capitatum Unknown 1936-1 13369 Sonoma near Healdsburg Comment
  RSA177950  Dichelostemma capitatum subsp. capitatum Robert F. Thorne 1965-4-20 34327 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  CAS-BOT-BC502551  Dichelostemma congestum Alice Eastwood 1921-5-8 10437 Sonoma Petaluma Comment
  RSA130891  Dichondra donelliana E. K. Balls 1958-7-21 23584 Sonoma State Hwy. 1, 7.3 mi. se. from Fort Ross. 137 Comment
  CAS-BOT-BC176370  Digitaria sanguinalis Peter Rubtzoff 1959-8-30 4243 Sonoma Drake's Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC209114  Digitaria sanguinalis G. DeNevers 1981-9-12 1850 Sonoma On bar in Mark West Creek, at its confluence with Leslie Creek, Pepperwood Ranch. Comment
  RSA796380  Digitaria sanguinalis Peter Rubtzoff 1956-9-14 2857 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC152293  Diplacus congdonii Milo S. Baker 1928-3-7 2729 c Sonoma Santa Rosa-St. Helena Road about 4 mi. East Rincon Summit Comment
  CAS-BOT-BC153333  Diplacus layneae Mrs. C. A. Burlingame 1921-5-30 s.n. Sonoma Sonoma Comment
  CDA37724  Dipsacus sativus R. Breckenridge/S. Ostrom 2009-5-6 s.n. Sonoma Windsor, along Highway 101. 0 Comment
  UCR10208  Dirca occidentalis Milo S. Baker 1942-5-20 10197 Sonoma 2 mi west of Bodega town on a road which turns right within the town Comment
  UCR279620  Distichlis spicata Peter Rubtzoff 1962-7-14 5000 Sonoma Lower Salmon Creek Marsh 6 Comment
  CAS-BOT-BC196919  Distichlis spicata David L. Morgan 1956-6-26 s.n. Sonoma Above Shell Beach, 1/4 mi. S of Goat Rock, off State Hiway #1 Comment
  UCD64360  Distichlis spicata Collector Unknown 1941-9-1 153 Sonoma Near mouth of Walker Creek by Tomales Bay. Comment
  HSC17868  Dodecatheon hendersonii R. F. Good 1962-4-20 23 Sonoma 2 mi. W of Petaluma on D St. Extension toward Pt. Reyes: Sonoma Mtn. Coastal Range 46 Comment
  SD106151  Downingia concolor var. concolor W. L. Jepson 1921-6-3 9313 Sonoma Cotati Valley, at Wilfrid Station. Comment
  CAS-BOT-BC527348  Drymocallis glandulosa var. reflexa F. G. Krauss 1894-5-1 s.n. Sonoma Mountains near Calistoga Comment
  UC1201281  Dryopteris arguta E. Samuels 233 Sonoma Comment
  UC1936226  Dryopteris expansa W. Born Jun 2008 s. n. Sonoma Pomo Canyon Campground, Sonoma Co. coast Comment
  CAS-BOT-BC536739  Duchesnea indica Mary P. Wells 1984-5-1 254 Sonoma Near Humbug creek south of Calistoga Rioad, Hood Mt. Range. Comment
  CAS-BOT-BC109485  Dudleya Roxana S. Ferris 1932-5-27 8260 Sonoma Bluffs northern end of Bodega Bay. Comment
  RSA785442  Echinochloa Peter Rubtzoff 1976-8-29 8834 Sonoma Russian River at Forest Hills, 5.5 mi east of Guerneville. Comment
  UCD164211  Echinochloa Peter Rubtzoff 1978-9-10 9264 Sonoma Russian River at Del Rio Beach, ca. 2.5 miles east of Healdsburg on South Fitch Mountain Road. Comment
  CAS-BOT-BC176200  Echinochloa crus-galli Peter Rubtzoff 1956-9-14 2861 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCD148392  Echinochloa crus-galli Peter Rubtzoff 1956-9-15 2901 Sonoma Atascadero Creek Marsh. Comment
  CDA20473  Echium plantagineum P. Lane 2004-4-8 PDR 1303247 Sonoma North Coast Ranges; Anna Street in Windsor. 0 Comment
  UCD61187  Ehrharta calycina Peter G. Connors 1991-5-22 107 Sonoma Bodega Head, Bodega Bay, Bay Flat Road, near Clark Marsh. Comment
  UCD61213  Ehrharta erecta P. G. Connors 1992-5-12 252 Sonoma Near Salmon Creek (Miwok Rd.). Comment
  CAS-BOT-BC274413  Eleocharis Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7849 Sonoma Kenwood Marsh. Comment
  RSA800157  Eleocharis Peter Rubtzoff 1972-8-26 6858 Sonoma Laguna, Chileno 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-BC112207  Eleocharis radicans Peter Rubtzoff 1960-6-5 4440 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  CAS-BOT-BC257701  Eleocharis rostellata Peter Rubtzoff 1973-9-9 7321 Sonoma Kenwood Marsh. Comment
  RSA92834  Eleocharis rostellata Peter Rubtzoff 1951-7-8 404 Sonoma Pitkin Marsh, near Forestville: Lower part of Upper Marsh Comment
  POM193576  Elymus R. C. Bacigalupi 1926-5-2 1405 Sonoma Cazadero. Comment
  OBI35896  Elymus elymoides David J. Keil 1983-6-30 17211 Sonoma Stillwater Cove Regional Park Comment
  SEINET7067272  Elymus glaucus A. G. Vestal 1947-5-13 s.n. Sonoma About 0.6 miles east of Annaplis. Coordinate datum: NAD27. Comment
  UCD62299  Elymus glaucus R. Tofsrud 1941-5-1 52 Sonoma Mc Donald Reservoir. Comment
  CAS-BOT-BC203709  Elymus glaucus subsp. glaucus David L. Morgan 1956-5-13 s.n. Sonoma 2 mi. W. of Petaluma on I st. Ext. Comment
  CAS-BOT-BC203710  Elymus glaucus subsp. glaucus David L. Morgan 1955-6-28 s.n. Sonoma Two Rock Comment
  CAS-BOT-BC203718  Elymus glaucus subsp. glaucus D. E. Breedlove 1980-6-28 44789 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC203721  Elymus glaucus subsp. glaucus G. DeNevers 1981-5-9 1097 Sonoma Pepperwood Ranch. S of Redwood Canyon Comment
  CAS-BOT-BC203725  Elymus glaucus subsp. glaucus L. R. Abrams 1922-6-21 8150 Sonoma 6 mi west of Ukiah on the Low Gap Road to Mendocino City Comment
  JEPS45814  Elymus glaucus subsp. jepsonii Eleanor Armstrong 1932-5-25 176 Sonoma 2 mi s Graton 91 Comment
  UC70815  Elymus multisetus Dr. Ed. Palmer 1892-1 2422 Sonoma Petaluma Comment
  UC1011038  Elymus multisetus Virginia Bufford 1936-5-20 317 Sonoma Mark West Road; Napa-Sonoma Co. line Comment
  CAS-BOT-BC368082  Epilobium Greg de Nevers 1998-4-28 11208 Sonoma Cresta Ranch, Cresta Road east of Mark West Lodge Comment
  UCD167418  Epilobium campestre Peter Rubtzoff 1962-6-21 4940 Sonoma Laguna de Santa Rosa NE of Graton, E of Laguna Road. Comment
  POM32586  Epilobium ciliatum subsp. ciliatum A. A. Heller 1902-7-2 5806 Sonoma Santa Rosa creek, east of Santa Rosa. 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
  UCR248931  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5338 Sonoma Bodega Bay Marsh 15 Comment
  RSA37531  Epilobium ciliatum subsp. watsonii J. Prosser, E. Cahill, E. Hallberg 1940-1 MSB- 9672 Sonoma Bodega Trip Comment
  RSA800038  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1967-8-28 5867 Sonoma Lower Salmon Creek Marsh. Comment
  UCD166183  Epilobium densiflorum Peter Rubtzoff 1969-7-25 6121 Sonoma 6.5 miles NE of Penngrove on Lichan Road. 426 Comment
  RSA155508  Epilobium hallianum L. S. Rose 1962-6-1 62060 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  SD251253  Epilobium hallianum Peter Rubtzoff 1962-6-1 4855 Sonoma Freestone Marsh. Comment
  JEPS128200  Epilobium minutum Roger Raiche 2000-5-4 068 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA41106  Epilobium minutum Robert F. Hoover 1939-4-18 4040 Sonoma Occidental Comment
  UC353896  Epilobium minutum Milo S. Baker 1927-5-7 2145 a Sonoma Adobe Canyon Fitzsimmon's Grade (at base of grade) Comment
  UCD106503  Epilobium minutum Frederica Bowcutt 1994-5-21 1818 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, about 10 air miles E of Santa Rosa, about 1.5 air miles N of Kenwood, about 18 air miles NW of Napa. Along meadow trail approx. 3/4 mile from trailhead. 411 Comment
  UC19963  Epilobium torreyi H. N. Bolander 1867-1 6535 Sonoma Cloverdale; ; Cloverdale, Sonoma Co. Comment
  UCD55326  Epilobium torreyi Ellen Dean 2006-6-28 3170 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. 182 Comment
  JEPS82530  Epipactis gigantea Roger Raiche 1984-5-19 40162 Sonoma n Cazadero; The Cedars, headwaters of Big Austin Creek 243 Comment
Read comments
Oct 16 2007
  POM168221  Epipactis gigantea A. A. Heller 1902-6-24 5747 Sonoma Near Burkes Sanitarium Comment
  CAS-BOT-BC173542  Equisetum Peter Rubtzoff 1973-8-21 7253 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC210075  Equisetum Peter Rubtzoff 1973-8-21 7255 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC210086  Equisetum Peter Rubtzoff 1964-8-20 5462 Sonoma Americano Creek area, Petaluma-Valley Ford roadside near Bloomfield. Comment
  CAS-BOT-BC164072  Equisetum Peter Rubtzoff 1962-5-25 4846 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC173543  Equisetum Peter Rubtzoff 1970-8-25 s.n. Sonoma Austin Creek Marsh. Comment
  RSA94454  Equisetum hyemale var. affine Peter Rubtzoff 1951-6-10 191 Sonoma The Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  SEINET5526046 Image available Equisetum laevigatum Unknown 1976-6-10 Sonoma Bodega Comment
  UCD67319  Equisetum laevigatum D. Sanchez-Mata 1996-4-16 s.n. Sonoma Mercuryville. Big Sulphur Creek. The Geysers. Riparian forests. 400 Comment
  UCD135508  Equisetum laevigatum Herbert L. Mason Date Unknown s.n. Sonoma Alexander Valley. Comment
  CAS-BOT-BC57643  Equisetum telmateia Walter Knight; Irja Knight 1963-9-15 383 Sonoma Los Alamos Rd. Comment
  CAS-BOT-BC57645  Equisetum telmateia Peter Rubtzoff 1955-4-9 1769 Sonoma Forestville Marsh Comment
  CAS-BOT-BC57652  Equisetum telmateia D. M. Porter; S. H. Porter 1967-3-25 1547 Sonoma alongside Highway 1, 2 miles south of Stewarts Point Comment
  UCD135948  Equisetum telmateia subsp. braunii J. M. Tucker; C. H. Lamoureux 1958-6-8 3407 Sonoma Beside State Highway 12, 1.6 miles southeast of center of Guerneville. Comment
  CAS-BOT-BC311809  Eragrostis Peter Rubtzoff 1965-8-16 5603 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  UC38308  Eragrostis hypnoides J. Burtt Davy July 1896 Sonoma Russian River at Russian River R.R. depot; Russian River Comment
  CAS-BOT-BC182757  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1954-7-3 1517 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC284186  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1963-9-28 5278 Sonoma Fitch Mtn. Grove, 2 mi. east of Healdsburg, Russian River Comment
  RSA785229  Erechtites glomeratus Peter Rubtzoff 1960-10-29 4577 Sonoma Bodega Harbor Marsh. Comment
  RSA784478  Erechtites minimus Peter Rubtzoff 1958-8-23 3916 Sonoma Laguna de Santa Rosa E of Cunningham (near Llano Road). Comment
  UC615573  Eremocarpus setiger Beryl O. Schreiber 1933-8-10 925 Sonoma 3 mi s Kenwood Comment
  JEPS19249  Ericameria arborescens W. T. Mooney 1915-9-1 Sonoma Petaluma Comment
  UC567089  Ericameria arborescens J. B. Spring 1932-7-7 97 Sonoma 2/5 mi sw Veader Mountain; Napa Quadrangle 609 Comment
  SD40106  Ericameria ericoides subsp. ericoides Edith A. Purer 1932-7-24 Sonoma Bodega Bay Comment
  UCR255874  Erigeron annuus Greg de Nevers 1994-6-13 10526 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC293625  Erigeron biolettii Milo S. Baker 1948-7-27 12079 Sonoma Near summit of Hood Mt. 792 Comment
  JEPS35239  Erigeron biolettii W. L. Jepson 1933-8-1 16551 Sonoma very dry hills near Agua Caliente Comment
  UC909710  Erigeron biolettii Milo S. Baker 1950-8-1 12309 Sonoma near Kenwood (at summit above Coleman's Ranch); Hope Val Comment
  POM40204  Erigeron glaucus Marcus E. Jones 1882-7-17 3622 Sonoma Duncan's Mills. Comment
  UC1557908  Erigeron glaucus J. Semple, S. Heard 1986-8-18 8545 Sonoma bluffs above Pebble Beach (CA-1, 10.1 km s of Mendocino Co. line); Pebble Beach Coastal Access, Pebble Beach Comment
  UCD132009  Erigeron glaucus Charles B. Heiser Jr. 1946-8-17 1832 Sonoma Jenner. Comment
  POM40212  Erigeron inornatus var. biolettii Marcus E. Jones 1882-7-17 3620 Sonoma Duncan's Mills. Comment
  UC896087  Erigeron petrophilus var. petrophilus Alice Eastwood 1918-9-3 7919 Sonoma Mt. St. Helena Comment
  JEPS86806  Erigeron reductus var. angustatus Jack and Betty Guggolz 1991-6-29 1200 Sonoma approx. one mi NNW of the center of Camp Meeker Camp Meeker Comment
  CAS-BOT-BC300252  Erigeron reductus var. angustatus Marian L. Campbell 1920-8-1 s.n. Sonoma Monte Rio Comment
  JEPS82248  Erigeron serpentinus Roger Raiche 1983-8-6 30587 Sonoma near seep above Austin Creek (below Laton Mine buildings); the Cedars Comment
  CAS-BOT-BC300303  Erigeron supplex Mary P. Wells 1985-6-3 516 Sonoma Drive off Wild Fern Close, The Sea Ranch Comment
  SD6690  Eriodictyon californicum unknown 1880-6-14 Sonoma Near Sonoma Comment
  CAS-BOT-BC250015  Eriogonum fasciculatum var. foliolosum Dorothy Scherer 1996-9-5 066 Sonoma North side of Fort Ross Rd. at intersection with Hwy 1. Fort Ross State Historic Park 51 Comment
  UC412860  Eriogonum latifolium Miss C. M. Hoak 1912-8-8 Sonoma Monte Rio Comment
  CAS-BOT-BC259252  Eriogonum latifolium W. R. Dudley 1893-9-9 s.n. Sonoma Near mouth of Russian River Comment
  CAS-BOT-BC259267  Eriogonum latifolium Mrs. H. P. Bracelin 1930-7-27 24 Sonoma Two miles north of Bodega Bay Comment
  LA206929  Eriogonum latifolium C. L. Hitchcock; J. S. Martin 1939-7-15 5444 Sonoma cliffs below Bodega State Park Comment
  UCSB50229  Eriogonum latifolium Gray, John 1976-5-5 Sonoma Bluff above Carment State Beach; T6N R11W 15 Comment
  UCD168058  Eriogonum nervulosum James Neilson 1978-6-17 3969 Sonoma Mayacmas Mountains, east of Shell Well Site E. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site E was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  CAS-BOT-BC261694  Eriogonum nudum var. nudum R. F. Hoover 1952-6-1 1132 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  RSA222  Eriogonum nudum var. nudum E. R. Johnson 1928-8-22 1107 Sonoma Russian River, 1/2 mile E of Cloverdale Comment
  UCD158794  Eriogonum vimineum James A. Neilson Jr. 1974-6-1 3055 Sonoma Mayacmas Mountains, Geyser Rock, northeast Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CAS-BOT-BC277736  Eriogonum vimineum R. D. Stone 1983-6-16 552 Sonoma At the Little Geysers, upper Big Sulphur Creek drainage 701 Comment
  UCD160898  Eriophyllum lanatum James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3286 Sonoma Mayacmas Mountains, adjacent to Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottlerock Road, east Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  CAS-BOT-BC301149  Eriophyllum lanatum var. achilleoides A. A. Heller 1902-6-26 s.n. Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  CDA4966  Eriophyllum lanatum var. achilleoides T. C. Fuller 1960-6-14 4487 Sonoma Italian Swiss Colony, Asti. 0 Comment
  CAS-BOT-BC301278  Eriophyllum lanatum var. arachnoideum A. A. Heller; H. E. Brown 1902-4-11 5262 Sonoma Bodega Bay Comment
  CAS-BOT-BC301300  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan's Mills Comment
  JEPS128258  Eriophyllum lanatum var. arachnoideum Roger Raiche 2000-4-20 039 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD132185  Eriophyllum lanatum var. arachnoideum Charles B. Heiser Jr. 1946-4-13 1721 Sonoma 2 miles east of Jenner. Comment
  UCSB50218  Erodium cicutarium Gray, John 1976-5-1 Sonoma Bluff above Blind Beach; along the Sonoma County coast; T7N RllW 60 Comment
  CDA13482  Eryngium aristulatum G. F. Hrusa, Allen Buckman 1997-7-21 14010 Sonoma North Coast Biodiversity Arena; approx. 200 m. W of Hwy 128 in drainage of Blossom Creek, 2 km. NW of Tubbs Lane int. Sheet 1 of 2 Comment
  SEINET13944099 Image available Eryngium aristulatum Joseph Andorfer Ewan 1935-1 9256 Sonoma Along railroad tracks all pls. now dormant, W right School on Sebastopol road Comment
  UC1365627  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1958-7-19 3769 Sonoma e. Sebastopol (Laguna de Santa Rosa); Laguna de Santa Rosa Comment
  UC1784137  Eryngium armatum Ethel Crum 1930-1 736 Sonoma Petaluma Comment
  CDA20458  Eryngium armatum P. Lane 2003-7-25 PDR P 092137 Sonoma Northwestern California; 1301 Ferguson Rd, Sebastopol. 0 Comment
  UCD115023  Erysimum Jackie Sinkey 1976-4-17 s.n. Sonoma Bodega Head. 152 Comment
  CAS-BOT-BC384606  Erythranthe grandis David B. Lowry 2005-5-9 WTB Sonoma At mile marker 17.08 along Hwy. 1 36 Comment
  CAS-BOT-BC153622  Erythranthe inodora Peter Rubtzoff 1969-8-14 6125 Sonoma Salmon Creek Road ca. 5 mi. west of Bodega (town) (1.1 mi. west of Finley Creek crossing); Salmon Creek margin Comment
  SEINET9633973 Image available Erythronium californicum Fred W. Hoffman 1947-4-20 1866 Sonoma Near Mercury, Geysers to Healdsburg. Comment
  CAS-BOT-BC133295  Erythronium helenae Walter Knight; Irja Knight; Dr. Steve Edwards 1986-3-24 5256 Sonoma Between Mercuryville and Geysers Resort jct. Comment
  CAS-BOT-BC402866  Eschscholzia caespitosa Alice Eastwood 1900-4-21 s.n. Sonoma Mt. St. Helena Comment
  JEPS51720  Eschscholzia californica W. L. Jepson 1911-4-30 4188 Sonoma near Glen Ellen; Sonoma Valley Comment
  SBBG21100  Eschscholzia californica V. Haraden 1941-7-13 Sonoma E exposure to bay, Bodega Bay 15 Comment
  UC112924  Eschscholzia californica Katharine Brandegee 1905-1 Sonoma Bodega Head Comment
  UCD95274  Eschscholzia californica Chris Bowen 1974-5-19 135 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. 30 Comment
  CAS-BOT-BC202766  Euonymus occidentalis H. E. McMinn 1922-6-7 190 Sonoma Above Monte Rio Comment
  CAS-BOT-BC202771  Euonymus occidentalis Peter Rubtzoff 1960-6-25 4524 Sonoma Duncans Mills Marsh Comment
  SD58246  Euonymus occidentalis Harry K. Roberts 1959-5-18 Sonoma On Louis Giovanni ranch in the first canyon south of ranch house, Green Valley, northwest of Sebastopol. Comment
  JEPS9602  Euonymus occidentalis var. occidentalis M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 249 Sonoma between Guerneville and Monte Rio (Russian R.); Russian R. Comment
  CAS-BOT-BC202537  Euphorbia Peter Rubtzoff 1986-9-28 9748 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  RSA0002811  Euphorbia A. A. Heller 1902-7-2 5802 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  CAS-BOT-BC310742  Euthamia occidentalis Walter Knight; Irja Knight 1963-9-12 248 Sonoma Bridge on Magnolia Ave. near Thompson Lane, Petaluma Comment
  CAS-BOT-BC239726  Fabaceae Peter Rubtzoff 1974-6-2 7503 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC418825  Fagopyrum esculentum H. K. Wagnon 1988-8-8 1797 Sonoma Spring Lake Park and environs. Adjacent to Montgomery Drive 67 Comment
  CAS-BOT-BC371457  Festuca Greg de Nevers 1989-4-1 9062 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  RSA785887  Festuca Peter Rubtzoff 1975-6-4 8034 Sonoma U.C. Blodgett Forest Research Station: County Road, 0.6 mi E of Main Station entrance. 1351 Comment
Read comments
Nov 3 2014
  CAS-BOT-BC283188  Festuca californica subsp. californica G. DeNevers 1981-5-15 1172 Sonoma N arm of Garrison Canyon, Pepperwood Ranch Comment
  RSA123474  Festuca californica var. californica H. S. Yates 1934-4-21 3831 Sonoma 2 miles north of County Farm. 244 Comment
  UCD65917  Festuca elmeri Beecher Crampton 1955-6-17 2944 Sonoma 4.5 miles S of Cazadero. Comment
  CAS-BOT-BC278415  Festuca idahoensis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53981 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  JEPS112968  Festuca idahoensis Dean W. Taylor 1994-5-4 14212 Sonoma ca. 2 mi SW of Occidental; at junction of Bittner Road and Joy Road, 249 Comment
  RSA121316  Festuca idahoensis H. S. Yates 1937-5-30 6544 Sonoma 3 miles WNW of Graton. 61 Comment
  UCD66117  Festuca occidentalis Beecher Crampton 1955-6-17 2964 Sonoma 2 miles east of Fort Ross. Comment
  SEINET6632138  Festuca pacifica D. F. Howe 1963-1 3530 Sonoma 4 mi. no. of Cloverdale on #128 335 Comment
  UCD33234  Festuca roemeri Beecher Crampton 1967-5-15 7930 Sonoma Lytton. Comment
  CAS-BOT-BC279080  Festuca rubra John Thomas Howell; Walter Knight; Irja Knight 1987-5-20 6241 Sonoma Todd Road Preserve 24 Comment
  UC1153832  Festuca subuliflora Beecher Crampton 1955-6-15 2961 Sonoma 2 mi e Fort Ross Comment
  CAS-BOT-BC354073  Filago Peter Rubtzoff; H. A. Froebe 1971-5-30 6466 Sonoma Eastern foothills of Sonoma Mtns. on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  UC12228  Fragaria chiloensis Harley P. Chandler 1900-5-25 692 Sonoma Bodega Bay Comment
  JEPS46056  Fragaria chiloensis Eleanor Armstrong 1933-4-15 762 Sonoma Bodega, on beach near Austin Creek 6 Comment
  UCD160880  Frangula californica James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3274 Sonoma Mayacmas Mountains, ca. 1/4 mile south of Caldwell Pines, ca. 3 1/2 miles west of Whispering Pines, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  CAS-BOT-BC53268  Frangula californica subsp. californica A. A. Heller 1902-7-8 5816 Sonoma Between Healdsburg and Geyserville Comment
  CAS-BOT-BC53283  Frangula californica subsp. californica A. A. Heller 1902-6-26 5768 Sonoma Along Sonoma creek, at the foot of Mt. Hood Comment
  JEPS44085  Fraxinus latifolia W. L. Jepson 1903-10-4 2364 Sonoma near Guerneville; Bohemian Club Grove Comment
  SEINET11993687  Fremontodendron californicum subsp. napense Unknown 1984-1 RR 40133 Sonoma N of Guerneville Morrison Ridge above Gilliam Creek, Austin Creek Recreational Area 183 Comment
  JEPS61915  Fritillaria liliacea Eleanor Armstrong 1933-7-10 559 Sonoma Camp Meeker Comment
  JEPS83496  Fritillaria liliacea Jack and Betty Guggolz 1986-3-16 859 Sonoma California Comment
  RSA276856  Galium aparine Peter Rubtzoff 1964-7-7 5395 Sonoma Duncan Mills Marsh. Comment
  UCD121623  Galium aparine Erik Beever 1993-5-8 222 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. 365 Comment
  CDA15739  Galium californicum subsp. californicum G. F. Hrusa 1998-6-14 14591 Sonoma Knights Valley; Foote Ranch, immed. N of corner Ida Clayton Rd. & Hwy. 128, Knights Valley. Comment
  JEPS6686  Galium californicum subsp. californicum M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma near Guerneville; Russian River Comment
  UCD39139  Galium parisiense Beecher Crampton 1964-8-18 7148 Sonoma N.E. part of county. 'The Geysers', Big Sulphur Creek. Comment
  UC28222  Galium porrigens var. porrigens W. A. Setchell 1898-3-15 Sonoma Cloverdale Comment
  UCD121907  Galium porrigens var. tenue Botany 102 Students 1993-5-8 268 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. In Adobe Canyon N of Sugarloaf Ridge. Bald Mountain Trail about 110 ft. above parking lot. About 1 air mile S of Red Mountain, N of Sonoma Creek. Comment
  UCD121910  Galium porrigens var. tenue Adam Green 1994-5-1 1752 d Sonoma Sugar Loaf Ridge State Park. About 50 air miles N of San Francisco; about 10 miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trail about 1/8 mile from trail head on Adobe Canyon Road. 213 Comment
  UC201102  Galium tricornutum Katharine Brandegee Sonoma Sebastopol Comment
  RSA264732  Galium trifidum Peter Rubtzoff 1962-7-14 4987 Sonoma Laguna. Chileno Valley. Comment
  UCD166078  Gamochaeta purpurea Peter Rubtzoff 1971-6-5 6519 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  RSA94011  Gamochaeta ustulata Peter Rubtzoff 1951-6-30 293 Sonoma Pitkin Marsh, near Forestville; western branch of the Upper Marsh Comment
  UC1122675  Garrya flavescens J. B. Spring 1932-7-7 98 Sonoma 2/5 mi sw Veeder Mountain; Napa Quad. 609 Comment
  CAS-BOT-BC311825  Gastridium Peter Rubtzoff 1969-8-14 6127 Sonoma Along Salmon Creek, ca. 0.5 miles upstream from Highway #1. Comment
  POM188277  Gastridium phleoides Marcus E. Jones 1931-7-5 29208 Sonoma The Geysers. Comment
  HSC101100  Gastridium phleoides Peter Warner 2011-8-10 229 Sonoma Jenner Headlands property, Muniz Ranch Rd., about 0.5 mi. N from Hwy. 1 intersection. 55 Comment
  UCR248771  Gastridium ventricosum Peter Rubtzoff 1972-6-29 6798 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  SEINET8718700 Image available Gastridium ventricosum Leo Koch 1940-1 837 Sonoma above Sulfur Creek Geysers Comment
  UC405441  Gentiana affinis var. ovata Katharine Brandegee June 1905 Sonoma Bodega Bay Comment
  SD88506  Gentiana sceptrum Darley F. Howe 1972-6-27 4841 Sonoma Near Pitkin Marsh Comment
  SFV8504  Geranium dissectum P. Kuehn 1967-5-27 35 Sonoma Ignacio Road. 61 Comment
  SEINET7067347  Gilia capitata A. G. Vestal 1947-5-16 s.n. Sonoma About 4.8 miles east of Windsor and northwest of Mark West Springs. Coordinate datum: NAD27. UTM Zone 10, 523072mE, 4267195mN. Comment
  SEINET12329984  Gilia capitata F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -229 Sonoma end of Stoetz Road 200 Comment
  SEINET5501090  Gilia capitata Sally Walker 1981-5-25 Sonoma 4 miles W of Occidental Sonoma Co. Comment
  UCD117691  Gilia capitata subsp. capitata Frederica Bowcutt 1994-6-12 1864 Sonoma about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 1.5 air miles north of Kenwood, and 18 air mles NW of Napa. Adobe Canyon north of Sonoma Creek, north of Adobe Canyon Road, at Pony Gate trail juncture. 432 Comment
  UCD117705  Gilia capitata subsp. chamissonis Eric S. Ngay 1990-5-18 7 Sonoma Bodega Head, first dune ridge west of harbor along road, east of marine lab dorms, Bodega Bay. Comment
  HSC100880  Gilia capitata subsp. pacifica Peter Warner, Sara Gordon 2011-6-16 219 Sonoma Jenner Headlands property, ~3 mi. NW of Jenner, lower Russian Gulch, near large rock outcrop, downslope from Muniz Ranch Rd., ~400 m N20 deg. E from Hwy. 1, Russian Gulch Bridge. 26 Comment
  UC133787  Gilia millefoliata Alice Eastwood Sonoma Bodega Point Comment
  NY336870  Gilia pallida A. A. Heller 1902-6-23 5739 Sonoma Petrified Forest Comment
  CHSC23105  Gilia tricolor Robert A. Schlising 1962-3-31 2119 Sonoma Coast Ranges. Along Cavedale Road, 1 mi E of Hwy 12. Comment
  UC932018  Gilia tricolor subsp. tricolor Verne Grant, Alva Grant March 1946 7850 Sonoma near Cloverdale; near Cloverdale Comment
  SEINET10464458  Githopsis diffusa subsp. robusta Michener 1892-5-30 MICHENER 1411 Sonoma Comment
  CDA2721  Gladiolus italicus William J. Ferlatte 1974-5-1 Sonoma Northwest corner of East Washington and Adobe Road, Petaluma. 0 Comment
  SD99432  Glinus lotoides Peter Rubtzoff 1969-8-24 6146 Sonoma Pond on River Road, 3.0 miles west of Fulton. Comment
  CAS-BOT-BC227664  Glyceria Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa. 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
  UC1446208  Glyceria declinata Paul But with Peter Rubtzoff 1974-4-6 1005 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC282813  Glyceria leptostachya Peter Rubtzoff 1962-5-30 4850 Sonoma Freestone Marsh Comment
  UCR244735  Glyceria occidentalis Peter Rubtzoff 1966-4-30 5687 Sonoma North side of Hwy 116, 0.5 miles northwest of Stony Point Road crossing Comment
  CAS-BOT-BC303863  Gnaphalium Peter Rubtzoff 1971-9-3 6697 Sonoma Spring Creek Reservoir Area Comment
  UCD166308  Gnaphalium Peter Rubtzoff 1966-8-29 5815 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC166748  Gnaphalium chilense Peter Rubtzoff 1963-9-28 5281 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  RSA790989  Gnaphalium chilense Peter Rubtzoff 1974-8-4 7796 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166794  Gnaphalium palustre Peter Rubtzoff 1958-7-5 3727 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road). Comment
  CAS-BOT-BC164664  Gnaphalium purpureum Peter Rubtzoff 1971-6-5 6519 Sonoma Intermittent lake off wst side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  SEINET8726299 Image available Godetia amoena Calvin, Phyllis McMillan 1951-1 1552 Sonoma with Ceanothus Jepsoni, Quercus durata, and Photinia arbutifolia; Northwest of Cloverdale on road to Boonville, ca. 1 mile east of Mendocino-Sonoma County line, Sonoma County. 335 Comment
  CAS-BOT-BC261653  Gratiola Peter Rubtzoff 1967-7-30 5846 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD84290  Gratiola ebracteata Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  CAS-BOT-BC164094  Grindelia Peter Rubtzoff 1964-7-7 5392 Sonoma Laguna de Santa Rosa E of Graton. Comment
  RSA785749  Grindelia Peter Rubtzoff 1963-7-14 5205 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  CAS-BOT-BC305184  Grindelia hirsutula L. R. Abrams 1916-7-4 5784 Sonoma Road between Petrified Forest and Mark West Comment
  JEPS41888  Grindelia hirsutula Eleanor Armstrong 1932-6-20 493 Sonoma 2 mi sw Santa Rosa; Bennett Valley 60 Comment
  SBBG45076  Grindelia hirsutula H. E. and S. T. Parks -Nov-1929 411 Sonoma Tubbs Island, sea level Comment
Read comments
Feb 9 2015
  UC1093968  Grindelia hirsutula Herbert L. Mason 1930-6-1 5653 Sonoma mouth of Gualala River Gualala River Comment
  UC473547  Grindelia hirsutula John Thomas Howell 1930-6-8 5256 Sonoma 1 mi e Bodega Comment
  POM187850  Grindelia hirsutula var. davyi Marcus E. Jones 1931-7-5 29142 Sonoma The Geysers. Comment
  CAS-BOT-BC123707  Grindelia hirsutula var. hirsutula John Thomas Howell 1930-7-13 5338 Sonoma Black Point Road Comment
  RSA0065160  Guillenia lasiophylla Greg de Nevers 1997-4-24 10959 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  JEPS40061  Harmonia nutans R. Kuhn 1914-10-5 Sonoma Sonoma Comment
  CAS-BOT-BC371462  Hedera helix Greg de Nevers 1989-8-28 9097 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Skovie. 400 Comment
  CAS-BOT-BC306322  Hedypnois cretica W. P. Vestal; A. G. Vestal 1947-5-13 s.n. Sonoma 5 miles north of Fort Ross Comment
  JEPS7068  Helenium bigelovii Peter Kamb 1950-6-16 1850 Sonoma 1 mi n Sousa Corners (n of Sebastopol, about springy bog toward s end of marsh); Pitkin Marsh 60 Comment
  CAS-BOT-BC309579  Helenium puberulum G. DeNevers 1981-5-30 1386 Sonoma Pepperwood Ranch. Shore of Pippindale Pond Comment
  RSA800484  Helenium puberulum Peter Rubtzoff 1955-8-13 2043 Sonoma Duncan Mills Marsh. Upper portion of the marsh. Comment
  UCD132752  Helenium puberulum Mary M. Hektner 1975-8-14 225 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET11842951  Helianthella californica F. H. Utech 1986-1 86 -113 Sonoma ca 5 mi NE on Cavedale Road from junction with CA 12 500 Comment
  CAS-BOT-BC305583  Helianthus bolanderi Walter Knight; Irja Knight 1968-1-1 2271 Sonoma Geysers Resort Comment
  UC578052  Helminthotheca echioides H. S. Yates 1935-10-3 5343 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  CAS-BOT-BC268127  Hemizonia Peter Rubtzoff 1962-10-9 5115 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC257144  Hemizonia Peter Rubtzoff 1959-6-13 4115 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC258387  Hemizonia Peter Rubtzoff 1972-5-21 6746 Sonoma Atascadero Creek Marsh and nearby slopes. Comment
  CAS-BOT-BC258906  Hemizonia Peter Rubtzoff 1961-8-24 4703 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC305994  Hemizonia Peter Rubtzoff 1966-8-25 5803 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads Comment
  UCD166306  Hemizonia Peter Rubtzoff 1966-8-25 5804 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads. Comment
  RSA94176  Hemizonia clevelandii F. W. Peirson 1925-8-8 6347 Sonoma About 1 mile N of Santa Rosa. Comment
  OBI49651  Hemizonia congesta G. Yatskievych, K. Yatskievych 1988-8-20 88 -160 Sonoma W side of Santa Rosa, just E of jctn with Llano Rd on State Rte 12 to Sebastopol 100 Comment
  CAS-BOT-BC306221  Hemizonia congesta subsp. congesta Alice Eastwood; John Thomas Howell 1936-5-19 2513 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC306225  Hemizonia congesta subsp. congesta John Thomas Howell 1930-6-8 5216 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC306234  Hemizonia congesta subsp. congesta A. A. Heller 1902-6-4 5637 Sonoma Santa Rosa Comment
  SD53396  Hemizonia congesta subsp. congesta Darley F. Howe 1962-7-29 3364 Sonoma 4.3 miles north of Jenner on Highway 1. Comment
  SEINET7067333  Hemizonia congesta subsp. congesta A. G. Vestal 1947-5-16 s.n. Sonoma About 4.5 miles East of Windsor on Faught Road. Coordinate datum: NAD27. UTM Zone 10, 521654mE, 4261292mN. Comment
  UC134571  Hemizonia congesta subsp. congesta Katharine Brandegee 1905-6-1 Sonoma between Santa Rosa and Sebastopol Comment
Read comments
Jun 26 2010
  UC197506  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10240 Sonoma 4 mi nw Petaluma; San Francisco Bay Region Comment
  CAS-BOT-BC306218  Hemizonia congesta subsp. congesta H. M. Hall 1931-5-26 13079 Sonoma Six miles northwest of Petaluma Comment
  UCD132982  Hemizonia congesta subsp. congesta Jack Guggolz; Betty Guggolz 1990-4-25 1037 Sonoma approximately 1/4 mile north of Arata Lane and between Hwy 101 and Old Redwood Highway. Comment
  CAS-BOT-BC309672  Hemizonia congesta subsp. lutescens A. A. Heller 1902-8-20 6054 Sonoma At Sebastopol Comment
  CAS-BOT-BC309726  Hemizonia congesta subsp. lutescens Roxana S. Ferris; Laura Lorraine 1961-6-14 13546 Sonoma Junction of Occidental Road with Facendini Lane Comment
  OBI16232  Hemizonia congesta subsp. lutescens Lewis S. Rose 1964-8-26 64067 Sonoma 5 mi NE of Penngrove 244 Comment
  UC483683  Hemizonia congesta subsp. lutescens Milo S. Baker 1932-6-9 5746 Sonoma 1 mi e Occidental Comment
  UC89773  Hemizonia congesta subsp. lutescens A. A. Heller 1902-8-20 6054 Sonoma Lagoon at Sebastapol Comment
  CAS-BOT-BC309694  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-9 714 -B Sonoma 4-1/2 mi. S of Santa Rosa Comment
  JEPS119428  Hemizonia congesta subsp. luzulifolia Anne Howald 2011-8-28 2807 Sonoma North Coast Ranges, Sonoma Valley, Felder Creek drainage, west side of Macabee Rd., 0.2 mi. north of Felder Rd., west of Arnold Dr. 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
  SEINET4560744  Hemizonia congesta subsp. luzulifolia Ann Howald 2011-1 2807 Sonoma North Coast Ranges: Sonoma Valley, Felder Creek drainage, west side of Macabee Rd., 0.2 mi. north of Felder Rd., west of Arnold Dr. 34 Comment
  CDA29448  Hemizonia fitchii Unknown 2009-6-25 PDR# 1535007 Sonoma In the vicinity of Santa Rosa. 0 Comment
  POM215135  Hemizonia fitchii D. D. Keck 1933-11-10 2726 Sonoma 1 mile E of Shellville. Comment
  RSA293431  Hemizonia lutescens Reino Alava 1958-5-24 2061 Sonoma About 4 miles east of Occidental Comment
  RSA81567  Hemizonia lutescens James I. McMurphy 1909-8-9 714 -B Sonoma 4.5 miles S of Santa Rosa. Comment
  UC990611  Hemizonia luzulifolia subsp. luzulifolia James I. McMurphy 1909-8-8 706 Sonoma Sonoma Comment
  RSA144367  Hemizonia multicaulis subsp. vernalis Roxana S. Ferris, Laura Lorraine 1961-6-14 13546 Sonoma Junction of Occidental Road with Facendini Lane Comment
  SD40693  Hesperocyparis sargentii Carl B. Wolf, E. R. Johnson 1934-10-13 Sonoma 2.8 miles from Camp Meeker on road to Monte Rio 60 Comment
  RSA63651  Hesperolinon clevelandii Milo S. Baker 1947-5-7 11743 Sonoma Southwest slope of Hood Mt. above Baker ranch. 213 Comment
  UC1212254  Hesperolinon micranthum Helen K. Sharsmith 1952-6-17 4124 Sonoma Trinity road nw Mount Veeder; Inner North Coast Ranges 457 Comment
  JEPS82315  Hesperolinon spergulinum Roger Raiche 1983-6-19 30411 Sonoma The Cedars; slopes of Red Slide Creek 243 Comment
  UC762260  Hesperolinon spergulinum Robert F. Hoover 1941-6-7 5305 Sonoma Occidental Comment
  UC1212387  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-18 4126 Sonoma n of Pine Flat (slopes above Florence Creek); Inner North Coast Ranges, Mayacamas Mountains, Florence Cree 670 Comment
  CAS-BOT-BC149831  Heteromeles arbutifolia Ynez Whilton Winblad 1941-6-20 s.n. Sonoma Between Ukiah and Santa Rosa, Highway 101 Comment
  CAS-BOT-BC149835  Heteromeles arbutifolia John I. Carlson 1917-7-23 s.n. Sonoma Preston Comment
  CAS-BOT-BC251213  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  UCD166419  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC420942  Heuchera micrantha var. diversifolia D. E. Breedlove 1980-6-27 44763 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC858023  Heuchera micrantha var. erubescens Alice Eastwood 1915-6-5 4577 Sonoma Petrified Forest Comment
  CAS-BOT-BC423440  Heuchera micrantha var. hartwegii R. Bacegalupi 1926-5-2 1394 Sonoma Cazadero Comment
  CAS-BOT-BC424432  Heuchera pilosissima Alice Eastwood 1917-5-13 s.n. Sonoma Bodega Bay Comment
  RSA0063008  Heuchera pilosissima Ella Dales Cantelow 1938-5-7 2402 Sonoma 4.5 miles W of Bodega. Comment
  UC727001  Heuchera pilosissima A. A. Heller 1938-5-14 15085 Sonoma slopes of a canyon opening near s end Bodega Bay; near s end Bodega Bay Comment
  UCD102628  Heuchera pilosissima Steve Clendenning 1973-5-12 105 Sonoma State Hwy 1, 4 miles east of Bodega Bay. 3 Comment
  CDA5016  Hibiscus trionum E. P. Delfino 1959-11-3 Sonoma 199 West Matheson, Santa Rosa. 0 Comment
  UCD133165  Hieracium albiflorum J. M. Tucker 1951-6-26 2134 Sonoma near summit of range, on raod from Glen Ellen to Oakville. Comment
  RSA0009726  Hoita macrostachya Marcus E. Jones 1931-7-5 28969 Sonoma West of Cloverdale. Comment
  CDA27097  Hoita orbicularis D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  JEPS71229  Holcus lanatus Virginia Bufford 1932-8-27 504 Sonoma near Occidental; near Occidental Comment
  RSA144370  Holcus lanatus Roxana S. Ferris, Laura Lorraine 1961-6-14 13543 Sonoma Willow Creek road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UC573682  Holcus lanatus H. S. Yates 1937-5-30 6538 Sonoma 1 1/2 mi nne Graton; Sebastopol Quadrangle Comment
  UC818446  Holcus lanatus Marcus E. Jones, A. M. 1882-7-18 3546 Sonoma Duncan's Mills Comment
  SDSU1671  Holocarpha virgata D. F. Howe 1965-8-3 4104 Sonoma 4.4 miles west of Santa Rosa. Comment
  UC861997  Holodiscus discolor Marcus E. Jones, A. M. 1882-7-18 3579 Sonoma Duncan Mills Comment
  POM274868  Holodiscus discolor Lyman D. Benson 1928-6-25 351 Sonoma Cloverdale-Hopland, Russian River. 457 Comment
  POM91554  Holodiscus discolor Marcus E. Jones 1882-7-18 3579 Sonoma Duncan's Mills. Comment
  CAS-BOT-BC315810  Holozonia filipes James I. McMurphy 1906-7-17 s.n. Sonoma Fulton Comment
  CAS-BOT-BC166740  Holozonia filipes Peter Rubtzoff 1971-7-9 6601 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC315809  Holozonia filipes Catherine Best 1980-4-16 s.n. Sonoma Westerbeke Ranch west of El Verano on Grove St. Comment
  RSA783729  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake. Comment
  SEINET10933146  Hookera terrestris A. Arthur Heller 1940-5-10 Heller 15602 Sonoma Scattered plants on a grassy slope near the Ocean between Fort Rosa and Stewart's Point. Humid Transition Life Zone. Comment
  SEINET257982  Hordeum brachyantherum Mary E. Barkworth, D Amme 1989-6-15 5173 Sonoma S end of Bodega Head onrestored grassland Comment
  CAS-BOT-BC289292  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-4-6 1557 Sonoma Cotati to Santa Rosa 45 Comment
  JEPS75074  Hordeum brachyantherum subsp. brachyantherum Edward Lee 1934-4-30 743 Sonoma 1 mi w 2 Rock junction Comment
  CAS-BOT-BC289539  Hordeum brachyantherum subsp. californicum Roxana S. Ferris; Laura Lorraine 1961-6-14 13545 Sonoma Junction of Occidental Road with Facendini Lane Comment
  CAS-BOT-BC285197  Hordeum marinum subsp. gussoneanum Peter Rubtzoff 1960-5-18 4374 Sonoma Bodega Head Marsh Comment
  CAS-BOT-BC284845  Hordeum murinum subsp. glaucum Peter Rubtzoff 1951-7-21 487 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  RSA123430  Hordeum murinum subsp. glaucum H. S. Yates 1936-5-16 5601 Sonoma 2 miles S.E. of Forestville 30 Comment
  POM205106  Hordeum murinum subsp. leporinum A. A. Heller 1902-4-11 5278 Sonoma Bodega Bay. Comment
  UCD86247  Hordeum murinum subsp. leporinum Gerry North 1993-4 2 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At Goodspeed trailhead pullout. On bank edge above Sonoma Creek. 213 Comment
  UC903149  Horkelia californica Ethel Crum 1930-6-8 753 Sonoma 8 mi n Bodega Bay Comment
  JEPS78465  Horkelia tenuiloba Edward Lee 1936-6-7 Sonoma Near Highpoint (on the fire trail); Bohemiam Grove Comment
Read comments
Dec 10 2008
  UCD161442  Hosackia crassifolia James A. Neilson Jr. 1975-7-8 3385 Sonoma Mayacmas Mountains; west of Alder Creek, vicinity of Geyser Rock; northeast Sonoma County, (Coordinates and elevation estimated by label maker.) 1097 Comment
  CAS-BOT-BC206158  Hosackia crassifolia Crawford Cooley 1992-5-7 s.n. Sonoma Near the Sonoma - Mendocino line ca. 8 airmiles west of Cloverdale on the Cooley Ranch Comment
  UCD106019  Hosackia gracilis Freed W. Hoffman 1947-4-22 626 Sonoma Roadside between Sebastopol and Petaluma. Comment
  UCD128230  Hydrocotyle ranunculoides David E. Bayer 1960-9-29 s. n. Sonoma Santa Rosa. Comment
  CAS-BOT-BC400995  Hypericum anagalloides Peter Rubtzoff 1951-7-1 329 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  CAS-BOT-BC410824  Hypericum concinnum Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road near Warm Spring Dam overlook Comment
  RSA94321  Hypericum formosum var. scouleri Peter Rubtzoff 1951-6-30 292 Sonoma Western branch of the upper Marsh; in a marshy opening. Comment
  CAS-BOT-BC401325  Hypericum scouleri Volney Rattan 1877-6-26 s.n. Sonoma Geysers Comment
  CAS-BOT-BC316686  Hypochaeris glabra Greg de Nevers 1987-4-25 8157 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  UCD148322  Hypochaeris glabra Peter Rubtzoff 1953-11-1 1429 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC316713  Hypochaeris radicata W. R. Dudley 1896-9-20 s.n. Sonoma Tomales Point Comment
  UC905118  Iris fernaldii Milo S. Baker 1947-4-22 11702 Sonoma n of Kenwood (Gray Ranch, above ranch buildings) Comment
  CHSC22983  Iris macrosiphon Robert A. Schlising; Et al 1962-3-31 2115 Sonoma Along Cavedale Road, NE of Agua Caliente. Comment
  SD56796  Iris macrosiphon Darley F. Howe 1963-5-23 Sonoma 3.8 miles north of Cloverdale, on #128. 334 Comment
  RSA135848  Iris macrosiphon E. K. Balls, Lee W. Lenz 1951-5-10 16537 Sonoma 0.7 miles south of Mendocino-Sonoma County line on Highway 28 Comment
  RSA488797  Iris macrosiphon James L. Reveal 1988-6-1 6975 Sonoma Along Geysers Road, 13.2 mile north of California Highway 128 and 14.8 miles east of U.S. Highway 101, 0.8 mile south of the turnoff to Geysers Resort, about 16.5 miles east of Cloverdale 640 Comment
  CAS-BOT-BC210128  Isoetes Peter Rubtzoff; Nancy Harrison 1974-5-26 7477 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UCD166138  Isoetes Peter Rubtzoff 1969-5-24 6053 Sonoma 6.5 miles northeast of Penngrove, on Lichau Road. 427 Comment
  CAS-BOT-BC61924  Isoetes nuttallii Peter Rubtzoff 1963-5-26 5141 Sonoma Bennett Mtn. Lake Comment
  CAS-BOT-BC112413  Isolepis carinata Peter Rubtzoff 1952-5-10 1025 Sonoma Pitkin Marsh near Forestville: Eastern branch of the Upper March. Comment
  JEPS121159  Isolepis carinata Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18594 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  RSA114299  Isolepis carinata J. T. Howell 1957-6-13 32620 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC112577  Isolepis cernua Marcus Eugene Jones 1882-7-17 s.n. Sonoma Duncan Mills Comment
  CHSC91622  Isolepis cernua G. F. Hrusa 2000-11-13 15718 Sonoma Northern California. At base of ocean bluff. Kortum trail head to Goat Rock. Comment
  JEPS19982  Isolepis cernua W. L. Jepson 1931-7-19 15945 Sonoma Sea-bluffs just n Salmon Creek; n of Salmon Creek Comment
  RSA540069  Isolepis cernua Peter Rubtzoff 1963-6-5 5152 Sonoma Brooks Gulch Marsh. Comment
  SD134076  Isolepis cernua Peter Rubtzoff 1955-7-31 2015 Sonoma Forestville Marsh, marshy to wet, partially shaded ground. (IPB 11/07) Comment
  CAS-BOT-BC112563  Isolepis cernua John Thomas Howell 1930-6-8 s.n. Sonoma Salt Marsh at N end of Bodega Bay Comment
  CAS-BOT-BC340229  Jaumea carnosa Milo S. Baker 1936-4-1 8214 Sonoma Near mouth of Salmon Cr. Comment
  SEINET2064756 Image available Juglans californica Royal D. Suttkus 1967-6-25 67 -281 Sonoma Russian River, 1 mile E of Alexander Comment
  UCR250377  Juncus balticus Peter Rubtzoff 1955-7-24 1989 Sonoma Forestville Marsh 71 Comment
  UC1601701  Juncus bufonius J. Burtt Davy 1894-6-17 Sonoma Knights Valley Comment
  UCD141367  Juncus bufonius Frederica Bowcutt 1984-6-23 431 a Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along Sonoma County Coast. Immed. SW of park entrance, W of Hwy 1 and NW of Gerstle Cove along park road. 30 Comment
  SEINET6333666  Juncus bufonius A. A. Heller 1902-6-11 5688 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  RSA790897  Juncus effusus Peter Rubtzoff 1964-8-26 5479 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road 213 Comment
  CAS-BOT-BC227620  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5907 Sonoma Lichan Marsh Comment
  CHSC105755  Juncus effusus subsp. pacificus Peter F. Zika 2008-7-21 23922 Sonoma San Francisco Bay (SnFrB). E side of Route 116 at Llano Road. 40 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
  UCR280144  Juncus effusus subsp. pacificus Peter Rubtzoff 1971-9-3 6693 Sonoma North Coast Range, Spring Creek Reservoir 87 Comment
  CAS-BOT-BC164053  Juncus hesperius Peter Rubtzoff 1970-9-3 6374 Sonoma Sonoma: Marsh off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing Comment
  UCR279616  Juncus hesperius Peter Rubtzoff 1959-6-20 4178 Sonoma Willow Creek Marsh 9 Comment
  UCD161773  Juncus nevadensis James A Neilson Jr. 1976-5-10 3688 a Sonoma Mayacmas Mountains. Aidlin-Govea Leasehold. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC210071  Juncus occidentalis Peter Rubtzoff 1974-6-2 7515 Sonoma Upper Green Valley Marsh Comment
  UCD165134  Juncus occidentalis Peter Rubtzoff 1974-5-18 7413 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD160828  Juncus patens James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3435 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  UCD164186  Juncus phaeocephalus Peter Rubtzoff; Nancy Harrison 1978-6-11 9204 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC273780  Koeleria pyramidata Catherine Best 1981-5-2 s.n. Sonoma Stoetz Lane, north of Occidental Comment
  CAS-BOT-BC273786  Koeleria pyramidata G. DeNevers 1981-6-6 1474 Sonoma Pepperwood Ranch. At top of Telegraph Hill Comment
  CAS-BOT-BC502599  Kopsiopsis strobilacea Greg de Nevers 1991-7-20 9759 Sonoma Mt. St. Helena 1310 Comment
  CAS-BOT-BC166951  Lagophylla Peter Rubtzoff 1975-8-26 8359 Sonoma Bennett Mountain Lake. Comment
  UC619296  Lagophylla ramosissima Milo S. Baker 1934-6-1 7687 Sonoma along the highway 1/2 mi n Warfield Comment
  POM264697  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Steward Point. Comment
  SEINET190913 Image available Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mi N of Steward Point. Comment
  CAS-BOT-BC274319  Lagurus ovatus Mary P. Wells 1981-8-2 s.n. Sonoma Trail north of Crow's Nest and east of Spyglass Lane, The Sea Ranch Comment
  UCD63283  Lamarckia aurea Beecher Crampton 1963-5-27 6813 Sonoma Sonoma County, border with Mendocino County, ca. 3 - 4 miles north of Cloverdale. Comment
  CAS-BOT-BC490425  Lamiaceae Peter Rubtzoff 1971-6-25 6566 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing Comment
  SD56365  Lamium purpureum Wayne Roderick 1962-3-20 Sonoma Near Sebastopol Comment
  UCSC007232  Lasthenia Randall Morgan 2003-6-27 3992 Sonoma Colony on low coastal bluff halfway along Salt Pt. State Park, Sonoma Coast Comment
  JEPS86317  Lasthenia burkei Jack and Betty Guggolz 1988-5-10 931 Sonoma on e side Old Redwood Hwy. (just n of its intersection with Starr Road, Grill property) Comment
  JEPS86746  Lasthenia burkei Jack and Betty Guggolz 1990-4-6 1029 Sonoma 1.25 mi nw old Windsor (Kidd Development) 41 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
  RSA585970  Lasthenia californica Adree M. Desrochers 1988-4-30 335 Sonoma Salt Point State Park, Stump Beach. Comment
  LA102440  Lasthenia californica subsp. macrantha John C. Roos; 1950-7-22 4867 Sonoma Jenner 30 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
  CAS-BOT-BC355521  Lasthenia glaberrima Alice Eastwood 1921-4-24 10356 Sonoma Santa Rosa Comment
  CAS-BOT-BC355534  Lasthenia glaberrima Peter Rubtzoff 1961-5-24 4602 Sonoma Upper Stemple Creek Marsh Comment
  CAS-BOT-BC355525  Lasthenia glaberrima Peter Rubtzoff 1968-6-20 5892 Sonoma 6.5 mi NE of Penngrove, on Lichun Road, 426 Comment
  CAS-BOT-BC352791  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  UCD133808  Lasthenia gracilis Gerry North 1993-3 30 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. 18 air miles northwest of Napa. At picnic site across from parking lot east of kiosk along Adobe Canyon Road. 381 Comment
  UC726106  Lasthenia minor A. A. Heller 1940-5-17 15628 Sonoma n of the town of Bay; Bodega Bay Comment
  UC1084420  Lathyrus jepsonii var. californicus G. Thomas Robbins 1937-5-23 189 Sonoma near Wright School (between Santa Rosa and Sebastopol) Comment
  CDA4166  Lathyrus tingitanus T. C. Fuller 1967-5-19 15882 Sonoma Coast Highway (Highway 1), 0.5 mile south of entrance to Doran Park south of town of Bodega Bay. 0 Comment
  UCD106668  Lathyrus tingitanus Donna Allen 1977-5-24 s.n. Sonoma Dry cr. Rd. next to bridge at site of proposed dam. Comment
  CAS-BOT-BC323257  Layia chrysanthemoides Alice Eastwood 1921-4-24 10395 Sonoma Santa Rosa Comment
  UC30599  Layia chrysanthemoides H. N. Bolander 1864-1 3902 Sonoma Mark West Comment
  CAS-BOT-BC323237  Layia chrysanthemoides John Thomas Howell 1931-4-1 6036 Sonoma 9 miles SW of Sonoma on road to San Rafael. Comment
  CAS-BOT-BC379622  Layia platyglossa J. Clausen 1935-5-24 1094 Sonoma 6.5 miles south of Jenner Comment
  UC1073293  Layia platyglossa George B. Rossbach 1955-3-19 547 Sonoma w rim Bodega Head; w rim of Bodega Head 45 Comment
  UCD133980  Layia platyglossa Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-21 41 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC176127  Leersia Peter Rubtzoff 1970-9-2 6358 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC274363  Leersia oryzoides Peter Rubtzoff 1958-7-19 3762 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  SEINET6096569  Lemna gibba Unknown 1965-11-9 5666 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC344877  Lemna minor Peter Rubtzoff 1958-8-31 3956 Sonoma Atascadero Creek Marsh. Comment
  RSA0028897  Lemna minor Peter Rubtzoff 1954-8-2 1625 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC527275  Lemna minuta Peter Rubtzoff 1951-7-28 543 Sonoma Southern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  CAS-BOT-BC527286  Lemna minuta Peter Rubtzoff 1964-8-20 5467 Sonoma One mile southeast of jenner near crossing of Hwys. 1 and 12 Comment
  CAS-BOT-BC527288  Lemna minuta Mary P. Wells 1984-8-9 437 Sonoma Sagpond near airstrip, Timber Ridge Road, The Sea Ranch Comment
  UCR256273  Lemna valdiviana Peter Rubtzoff 1954-7-29 1612 Sonoma Guerneville Marsh Comment
  UCR256958  Lemna valdiviana Peter Rubtzoff 1958-8-23 3899 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 31 Comment
  SD56748  Leontodon saxatilis subsp. saxatilis Darley F. Howe 1963-7-3 3575 Sonoma 20 miles north of junction with Highway 12 on Highway 1. Comment
  CAS-BOT-BC339165  Leontodon saxatilis subsp. saxatilis Peter Rubtzoff 1951-7-8 394 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  UCD115703  Lepidium latifolium Walter Knight 1963-8-9 s.n. Sonoma Petaluma city limits sign on highway to Lakeville. Comment
  UC72927  Lepidium nitidum Milo S. Baker 1898-2-19 714 Sonoma ne of Santa Rosa Comment
  CAS-BOT-BC12660  Lepidium nitidum A. A. Heller 1902-3-14 5054 Sonoma Santa Rosa. Comment
  NY76571  Lepidium oxycarpum J. T. Howell 1933-4-1 10924 Sonoma Petaluma Comment
  UCD115834  Lepidium strictum Caitlin Lewis; William Mutch 1993-4-17 12 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. 365 Comment
  CAS-BOT-BC361344  Leptosiphon harknessii Greg de Nevers 1997-4-24 10968 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS128322  Leptosiphon parviflorus Roger Raiche 2000-3-26 012 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  UCD118981  Leptosiphon parviflorus Frederica Bowcutt 1994-5-1 1788 Sonoma Sugarloaf Ridge State Park. About 50 air miles north of San Francisco. About 10 air miles east of Santa Rosa. About 1.5 air miles north of Kenwood. About 18 air miles northwest of Napa. South of Sonoma Creek about 125 yards, 0.25 mile northwest of confluence with Rattlesnake Creek. Comment
  JEPS20604  Lessingia hololeuca J. Burtt Davy 1897-9-18 4031 Sonoma between San Rafael and Petaluma Comment
  CDA8201  Lessingia ramulosa M. Mason 1976-7-6 Sonoma Airport Road, Sonoma County Airport, northwest of Santa Rosa. 0 Comment
  CAS-BOT-BC342078  Leucanthemum maximum Mary P. Wells 1982-8-21 143 Sonoma Miller Cr., Salt Point St. Pk. Comment
  JEPS116507  Leymus californicus Peter Warner 2009-6-3 104 Sonoma Poff Ranch, along N unfenced boundary, adjacent to or on Willow Creek (Calif. State Parks Property), upper east Pomo Canyon, along logging road 130 Comment
  UCD61337  Leymus californicus Collector Unknown 1942-5-23 10198 Sonoma 2.5 miles W of Bodega town, turning right in town. Comment
  UC38164  Leymus triticoides J. Burtt Davy 1897-9-18 4037 Sonoma roadside bank near Petaluma Comment
  CAS-BOT-BC451696  Lilaea scilloides Peter Rubtzoff 1961-5-24 4605 Sonoma Upper Stemple Creek Marsh. Comment
  CAS-BOT-BC451703  Lilaea scilloides Peter H. Raven 1963-4-12 18162 Sonoma Along U. S. 101 just south of Asti. Comment
  POM109718  Lilium humboldtii subsp. humboldtii Marcus E. Jones 1882-7-18 s.n. Sonoma Duncans Mills Comment
Read comments
Feb 5 2011
  CAS-BOT-BC130827  Lilium pardalinum John Thomas Howell 1945-5-30 20897 Sonoma Pitkin Marsh Comment
  RSA155473  Limnanthes douglasii L. S. Rose 1962-6-1 62061 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  UCD116498  Limnanthes douglasii Charles B. Heiser Jr. 1947-3-29 1893 Sonoma outskirts of Sonoma. Comment
  UC17900  Limnanthes douglasii subsp. douglasii W. H. Brewer 1862-4-18 972 Sonoma near Sonoma Comment
  UCD21131  Limnanthes douglasii subsp. rosea Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-6 306 Sonoma Todd Road Ecological Reserve, W of Highway 101, N of Todd Road. Pool #TOD001. UTMs 10S0519445; 4248904. Comment
  SEINET5586467  Limnanthes douglasii var. nivea Paul But 1975-1 990 Sonoma Western end of Sebastopol city limit. Comment
  UC1330360  Limnanthes vinculans R. Ornduff 1965-5-8 6864 Sonoma at junction of Hessel Road and Highway 116 Comment
  UCD71176  Limnanthes vinculans M. Plotkin 1995-5-29 MSP 04 Sonoma Todd Road, Southeast of Sebastopol, adjacent to CA Department of Fish and Game Todd Road Ecological Reserve. In culvert inside Todd road right of way. 24 Comment
  SEINET7042679  Linanthus acicularis A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  CDA36957  Linanthus androsaceus 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
  UC106679  Linanthus androsaceus Katharine Brandegee Jun 1905 Sonoma Bodega Heak Bodega Head Comment
  UC908797  Linanthus androsaceus Herbert L. Mason 1928-4-8 4289 Sonoma 2 mi n Fort Ross Comment
  UC106672  Linanthus ciliatus Michener and Bioletti 1892-5-20 1542 a Sonoma Hood's Peak Comment
  UC908664  Linanthus jepsonii Herbert L. Mason 1940-5-21 12293 Sonoma Head of Maycama Creek Knights Valley Comment
  UC52689  Linanthus parviflorus unknown 1898-4-23 Sonoma Santa Rosa Creek Canyon Comment
  UC23768  Linanthus parviflorus Willis L. Jepson 1893-5-1 Sonoma Knights Valley grade Napa River Basin Comment
  UCD110566  Linum bienne William J. Costa 1968-5-18 36 Sonoma Shell Beach, ca. 1.5 air miles south of Jenner. 15 Comment
  SEINET8981358  Lithocarpus densiflorus L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa Comment
  CAS-BOT-BC430800  Lithophragma affine Alice Eastwood 1921-4-24 10374 Sonoma Santa Rosa Comment
  CAS-BOT-BC430797  Lithophragma affine Mrs. Clara Hunt 1921-4-1 s.n. Sonoma St. Helena Comment
  UCD102702  Lithophragma affine Caitlin Lewis; William Mutch 1993-4-17 17 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. Along Sonoma Creek. 365 Comment
  UCR37748  Lobularia maritima A. C. Sanders 1985-1-19 5371 Sonoma Bodega Bay, coastal bluffs behind Lucas Wharf, along the highway 15 Comment
  CAS-BOT-BC361419  Logfia gallica Greg de Nevers 1993-5-30 10465 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Piney Canyon Rd. from Bald Hills 400 Comment
  UCD132737  Logfia gallica Frederica Bowcutt 1994-6-12 1855 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 75 yards, N of Adobe Canyon Road up Pony Gate Trail. 426 Comment
  CAS-BOT-BC283292  Lolium multiflorum David L. Morgan 1960-7-10 s.n. Sonoma 1 mile S of Carmet, State Highway 1, Bodega Coast Comment
  UC1011013  Lolium temulentum Virginia Bufford 1936-5-19 269 Sonoma 2 or 3 mi from Santa Rosa (Bennett Valley); Bennett Valley Comment
  POM266014  Lomatium caruifolium Lincoln Constance, Reed Rollins 1942-5-10 2862 Sonoma Sonoma County: 4 miles N of Geyserville. 61 Comment
  JEPS15810  Lomatium caruifolium var. caruifolium W. L. Jepson 1921-6-2 9297 Sonoma Windsor 51 Comment
  UC875120  Lomatium dasycarpum subsp. dasycarpum Lewis S. Rose 1941-5-22 31247 Sonoma 4 mi. e. Santa Rosa (Rincon Ridge); Rincon Ridge 121 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
  UCD73920  Lomatium repostum G. Ledyard Stebbins 1966-5-1 6390 Sonoma Rincon Ridge, Chanate Road, 1/4 mile west of Montecito. Comment
  UCR265128  Lomatium utriculatum Ann Howald 2015-4-1 3327 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 16.5 miles west of intersection with Rockpile Rd, Wolf Creek drainage 318 Comment
  CAS-BOT-BC258030  Lonicera Peter Rubtzoff 1962-4-11 4787 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  UCD137317  Lonicera hispidula Mary M. Hektner 1974-7-8 138 Sonoma along State Highway 1, just north of Whalebone Reach, Unit 24 Owners' Map, Sea Ranch. Comment
  UC28551  Lonicera involucrata var. ledebourii J. Burtt Davy 1896-3-13 1654 Sonoma Duncan's Mills Comment
  CAS-BOT-BC200971  Lotus John H. Thomas 1966-5-8 11595 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa Comment
  CAS-BOT-BC294706  Lotus Peter Rubtzoff 1971-5-8 6452 Sonoma Intermittent lake off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  RSA115453  Lotus angustissimus Beecher Crampton 1955-6-17 2967 Sonoma Fort Ross Comment
  RSA620424  Lotus formosissimus Peter Rubtzoff 1958-5-10 3632 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road) Comment
  UC1057478  Lotus formosissimus G. Thomas Robbins 1937-5-23 211 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch, Vine Hill region); Vine Hill Region Comment
  UC80972  Lotus formosissimus Michener and Bioletti Jun 1893 Sonoma Kenwood Comment
  UCR105443  Lotus formosissimus Peter Rubtzoff 1958-5-10 3632 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  UC69629  Lotus humistratus J. Burtt Davy 1896-3-13 1655 Sonoma Duncan's Mills Comment
  JEPS117056  Lotus pinnatus Peter Warner 2007-5-12 84 Sonoma Mayacamas Audubon Sanctuary, Pine Flat Road, E of Geyserville; along Little Sulphur Creek, at bridge approx. 1 km N of Sanctuary parking lot at Pine Flat. 631 Comment
  SEINET12154271  Lotus purshianus L. S. Rose 1938-1 38255 Sonoma Bloomfield 30 Comment
  HSC49288  Lotus scoparius J. P. Smith, J. O. Sawyer 1977-6-5 2878 Sonoma Along Arnold Rd. at jct. with State Route 12. Comment
  RSA27256  Lotus scoparius var. scoparius Marcus E. Jones 1902-7-18 s.n. Sonoma Duncans Mills Comment
Read comments
Nov 19 2011
  RSA0034027  Ludwigia Peter Rubtzoff 1987-9-27 9853 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  UCD65846  Ludwigia hexapetala B. J. Grewell 2006-8-23 06- 48 -LU Sonoma Russian River watershed, Russian River at summer water crossing, Asti. Collection immediately downstream of summer bridge, west bank. 64 Comment
  CAS-BOT-BC157696  Ludwigia peploides Peter Rubtzoff 1955-8-21 2091 Sonoma Vacation Beach, near Guerneville along Russian River, below the dam. Comment
  CAS-BOT-BC157972  Ludwigia peploides Peter Rubtzoff 1958-7-26 3807 Sonoma Laguna de Santa Rosa, east of Sebastopol Comment
  CAS-BOT-BC164350  Ludwigia peploides Peter Rubtzoff 1964-6-20 s.n. Sonoma Laguna de Santa Rosa, southeast of Sebastopol (near Cooper Road) Comment
  UC423054  Ludwigia peploides subsp. peploides Milo S. Baker 1899-6-29 Sonoma near Forestville Station Comment
  CDA9766  Ludwigia uruguayensis Erik Hawk 2007-10-1 s.n.-LFCC Sonoma Food control channel E of Stony Point Rd., at Rohnert Park Expressway, Laguna de Santa Rosa. Comment
  CAS-BOT-BC201288  Lupinus Milo S. Baker 1928-6-28 3193 Sonoma Pitkin's Farm upland -Vine HIll Dist. Comment
  UC1299684  Lupinus adsurgens Freed W. Hoffman 1949-6-5 3218 Sonoma summit of road leading from Lake County to Pine Flat; North Coast Ranges, rd fr Lake County to Pine Flat Comment
  UC905105  Lupinus albifrons Milo S. Baker 1947-4-16 11686 Sonoma cliffs at junction of Mark West Road and one from Rincon Summit; cliffs at jct of Mark West Rd and one fr Rincon Summit Comment
  SEINET10488444  Lupinus albifrons Joseph W. Congdon 1880-5-16 Congdon s.n. Sonoma Above Sebastopol. Comment
  CAS-BOT-BC195979  Lupinus albifrons var. albifrons Alice Eastwood 1893-4-27 s.n. Sonoma Hood Mt. Comment
  UC725889  Lupinus albifrons var. albifrons A. A. Heller 1940-5-17 15632 Sonoma about 2 mi e Bodega Bay; e of Bodega Bay Comment
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Jan 27 2007
  POM11031  Lupinus albifrons var. eminens A. A. Heller, H. E. Brown, A. H. Heller 1902-3-27 7175 Sonoma Western base of Mt. Hood. Comment
  CAS-BOT-BC196459  Lupinus arboreus Alice Eastwood; John Thomas Howell 1939-4-2 7371 Sonoma North of Bodega Bay Comment
  CDA36849  Lupinus bicolor CDFA Staff s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  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
  HSC14957  Lupinus bicolor S. N. Wiemeyer 1962-4-13 12 Sonoma 2.1 mi. N of Jct. of Calistoga Rd. and Hwy. 12 274 Comment
  CAS-BOT-BC311854  Lupinus bicolor subsp. tridentatus Peter Rubtzoff 1970-8-25 6340 Sonoma On Austin Creek beach, 0.5 miles north of Cazadero. Comment
  POM186932  Lupinus densiflorus var. aureus Marcus E. Jones 1931-7-5 28954 Sonoma The Geysers. Comment
  RSA413559  Lupinus densiflorus var. densiflorus Lester Rowntree 1931-7-13 s.n. Sonoma Road between Bay and Bodya. Comment
  SEINET10490758  Lupinus formosus var. formosus Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-9 Conrad 7079 Sonoma On n-facing grassy clay bank, 0.6 mi w of sonoma-napa county line on hwy 121. 61 Comment
  SD255743  Lupinus latifolius Ann Howald 2015-4-1 3335 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 17 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 259 Comment
  SEINET10490782  Lupinus latifolius subsp. latifolius Robert F. Thorne 1965-4-19 Thorne 34317 Sonoma Fls violet; on well-drained embankment in douglas-fir forest; harrison grade, 1/2 Mi. From green valley rd.; With calycanthus, pseudotsuga, umbellularia, etc 152 Comment
  NY15940  Lupinus lutosus A. A. Heller 1940-4-22 15546 Sonoma Alexander Valley. Lower Sonoran Life Zone. Comment
  UC865134  Lupinus microcarpus var. densiflorus A. A. Heller 1938-5-14 15091 Sonoma w of Petaluma near Two Rocks; near Two Rocks Comment
  OBI56912  Lupinus microcarpus var. densiflorus Rhonda Riggins 1982-5-22 1418 Sonoma Roadside, D St. (Petaluma-Reyes Rd) 1.4 mi S Petaluma Blvd in Petaluma Comment
  UC424873  Lupinus microcarpus var. densiflorus Milo S. Baker 1930-4-16 4117 a Sonoma on the Lakeport Hiway a few mi e Hopland; e of Hopland Comment
  UC726340  Lupinus microcarpus var. microcarpus A. A. Heller 1938-5-14 15091 Sonoma near Two Rocks; near Two Rocks Comment
  SD130431  Lupinus nanus F. Almeda, G. DeNevers 1981-3-30 4887 Sonoma Pepperwood Ranch; summit and east-facing slope of Three Tree Hill. Comment
  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
  UC65702  Lupinus nanus A. A. Heller 1902-3-21 5115 Sonoma Santa Rosa Comment
  UCD109093  Lupinus nanus Caitlin Lewis; William Mutch 1993-4-17 2 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 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
  POM10734  Lupinus nanus var. apricus A. A. Heller, H. E. Brown, A. H. Heller 1902-3-21 7188 Sonoma Hills southeast of Santa Rosa Comment
  CAS-BOT-BC320462  Lupinus polycarpus Peter Rubtzoff 1969-5-3 6020 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  JEPS78238  Lupinus sericatus Charley Patterson 1979-6-22 Sonoma Socrates Mine Rd. (Whispering Pines Quad.) lower left corner of quad. on bend in road just nw 3066 BM (ca 3 air mi sw of Whispering Pines); Whispering Pines Quad, Lake-Sonoma County Line Comment
  UC1129737  Lupinus variicolor H. S. Yates 1934-4-21 3776 Sonoma near Bodega; Sebastopol Quadrangle Comment
  CDA27598  Lupinus variicolor T. C. Fuller 1967-5-19 15883 Sonoma At the entrance of Doran Park on the Coast Highway (Highway 1), 1 mile south of the town of Bodega Bay. 0 Comment
  UCD148314  Luzula Peter Rubtzoff 1951-9-3 741 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  SEINET7075563  Luzula comosa A. G. Vestal 1955-5-8 s.n. Sonoma South end of Bennett Mountain southeast of Santa Rosa. East Bennett Valley. 38? deg. 24' 31" North Latitude, -122? deg. 37' 52" West Longitude. UTM Zone 10, 532220mE, 4251005mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC436741  Luzula comosa var. comosa John Thomas Howell 1937-6-6 13033 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC441295  Luzula macrantha G. De Nevers 1981-3-14 519 Sonoma Pepperwood Ranch. Pippindale farm, 7 mi. NE of Santa Rosa, near Mark West lodge. At confluence of Mark West Creek and Leslie Creek, by the studio Comment
  CAS-BOT-BC441402  Luzula macrantha A. A. Heller; H. E. Brown 1902-3-26 5156 Sonoma Santa Rosa Creek Comment
  CAS-BOT-BC441392  Luzula subsessilis Peter Rubtzoff 1953-5-17 1373 Sonoma Vacation Beach, near Guerneville Comment
  CAS-BOT-BC376266  Lythrum hyssopifolia Greg de Nevers No date on label 10779 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Garrison Canyon, in headwaters of canyon west of house 487 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-BC166955  Madia Peter Rubtzoff 1969-8-29 6173 Sonoma Salmon Creek, ca. 0.5 miles upstream from Hwy. 1. Comment
  CAS-BOT-BC173556  Madia Peter Rubtzoff 1975-8-28 8361 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC227611  Madia Peter Rubtzoff 1971-6-30 6582 Sonoma Eastern foothills of Sonoma Mtns., on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  CAS-BOT-BC344028  Madia elegans Walter Knight; Irja Knight 1963-8-31 174 Sonoma Near corner Todd Road & freeway Comment
  CAS-BOT-BC344049  Madia elegans Helen D. Geis 1902-8-1 581 Sonoma Cloverdale Comment
  RSA917  Madia elegans subsp. densifolia E. R. Johnson 1928-8-22 1110 Sonoma Cloverdale Comment
  SD254541  Madia exigua Ann Howald, Christina Freeman 2015-1-1 3414 Sonoma Inner North Coast Ranges: Annadel State Park, Lawndale wetlands, northeast of intersection of Lawndale and Marsh trails (Kenwood 7.5'Q) 370 Comment
  CAS-BOT-BC166733  Madia gracilis Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC343453  Madia gracilis John Thomas Howell 1937-7-4 13066 Sonoma Near Petrified Forest Comment
  JEPS128310  Madia gracilis Roger Raiche 2000-5-27 106 .00 Sonoma The Cedars, road into The Cedars at bridge (before 2nd crossing. Lower Russian River, Big Austin Creek watershed. Comment
  UCD148434  Madia gracilis Peter Rubtzoff 1962-6-13 4894 Sonoma Freestone Marsh. Comment
  UCD151199  Madia gracilis James A. Neilson Jr. 1974-7-10 3577 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, west of Whispering Pines, northeast Sonoma County. (Elevation estimated using Google Earth by label maker.) 1082 Comment
  CAS-BOT-BC343448  Madia gracilis John H. Thomas 1966-5-8 11601 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa Comment
  CAS-BOT-BC343472  Madia gracilis Catherine Best 1984-4-22 927 Sonoma Buena Vista Winery south of Sonoma Comment
  POM53609  Madia gracilis subsp. gracilis Michener, F. T. Bioletti 1893-06 s.n. Sonoma Hoods Peak. Comment
  POM231101  Madia nutans Jens Clausen 1935-5-23 1073 Sonoma 0.32 miles N of entance to Peftified Forest. Comment
  CAS-BOT-BC345214  Madia sativa John Thomas Howell 1932-9-17 10764 Sonoma 1 mile south of Kenwood Comment
  CAS-BOT-BC345230  Madia sativa John H. Thomas 1976-6-15 18285 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC345261  Madia sativa David D. Keck 1933-11-6 2645 Sonoma 1 mi. N. of Freestone on road to Occidental Comment
  UC905681  Madia sativa H. M. Hall 1916-7-24 10250 Sonoma near Petaluma Comment
  CAS-BOT-BC345258  Madia sativa John Thomas Howell 1932-9-18 10765 Sonoma South base of Mt. Hood on Sonoma Creek Comment
  RSA81546  Madia sativa James I. McMurphy 1909-8-8 703 Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  CAS-BOT-BC511537  Maianthemum racemosum subsp. amplexicaule Mrs. Alexander McCallum 1894-6-1 s.n. Sonoma Glen Blair Comment
  HSC15644  Maianthemum racemosum subsp. amplexicaule James Faro 1962-4-20 24 Sonoma 5 mi. N of Geurneville on Old Cazadero Rd. Comment
  SEINET12052825  Maianthemum stellatum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -51 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  UCD139120  Maianthemum stellatum Frederica Bowcutt 1994-5-1 1779 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon S of Sonoma Creek about 150 yards, 1/4 mile northwest of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. Campground. 350 Comment
  CAS-BOT-BC511496  Maianthemum stellatum Lewis S. Rose 1962-4-18 62025 Sonoma Laguna de Santa Rosa, 2 mi. ne. of Graton 30 Comment
  SBBG32440  Marah fabacea L. S. Rose 1962-4-18 62026 Sonoma Laguna de Santa Rosa, 2 mi NE of Graton 30 Comment
  CAS-BOT-BC348223  Matricaria discoidea Volney Rattan 1867-4-1 s.n. Sonoma Black Point Comment
  RSA786861  Matricaria matricarioides Carrie A. Herd 1982-5-4 87 Sonoma Rohnert Park, C.S.U. Sonoma, between dorm parking lot and bicycle path Comment
  UCD166339  Medicago Peter Rubtzoff 1968-8-31 5945 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. 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
  POM204781  Melica californica A. A. Heller 1902-4-23 5351 Sonoma Near Sonoma. Comment
  SEINET10926810  Melica californica A. Arthur Heller 1902-4-4 Heller 5315 Sonoma Hills near Santa Rosa. Comment
  UCD86429  Melica californica Frederica Bowcutt 1996-5-24 2155 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 just NW of Sonoma/Rattlesnake Creek confluence. 381 Comment
  CAS-BOT-BC281276  Melica geyeri G. DeNevers 1981-5-15 1164 Sonoma Pepperwood Ranch. N arm of Garrison Canyon Comment
  CAS-BOT-BC281285  Melica geyeri Catherine Best 1981-5-2 s.n. Sonoma Bohemian Highway 3.5 miles N of Occidental Comment
  JEPS78715  Melica geyeri Edward Lee 1936-6-8 2223 Sonoma Bohemian Grove; grounds near entrance Comment
  UC1132265  Melica geyeri H. S. Yates 1937-5-30 6545 Sonoma 3 mi wnw Graton; Sebastopol Quad. 60 Comment
  UCD87353  Melica geyeri R. Tofsrud 1947-5-4 s.n. Sonoma Parker Hill near Santa Rosa. Comment
  CAS-BOT-BC281281  Melica geyeri David L. Morgan 1961-4-17 s.n. Sonoma On Tomales Rd, 2 miles SW of Tomales Comment
  JEPS45822  Melica harfordii Eleanor Armstrong 1932-6-3 181 Sonoma near Camp Meeker 121 Comment
  UCD36688  Melica harfordii Beecher Crampton 1955-6-17 2941 Sonoma 4.5 miles S of Cazadero. Comment
  UCD151137  Melica subulata James A. Neilson Jr. 1973-6-6 2962 Sonoma Mayacmas Mountains. The Geysers. Site IV. (Exact location of Site IV unknown. Elevation and coordinates very broadly estimated by label maker.) 441 Comment
  UC618995  Melica torreyana H. S. Yates 1935-5-16 5616 Sonoma 3 mi nw Camp Meeker; Seabastopol Quad. 60 Comment
  UCD36693  Melica torreyana Beecher Crampton 1955-6-17 2956 Sonoma Sonoma County, 5 miles west of Cazadero, on road to Fort Ross. Comment
  UCD89202  Melica torreyana R. Tofsrud 1942-4-1 301 Sonoma Stream bank about 3 mi. east Mark West resort below main road. Comment
  UCR279644  Melilotus albus Peter Rubtzoff 1953-11-1 1432 Sonoma Vacation Beach, near Guerneville, along Russian River 3 Comment
  CAS-BOT-BC268072  Melilotus indicus Peter Rubtzoff 1971-8-20 6640 Sonoma 5 miles north of Sears Point. Comment
  UCD166100  Melilotus indicus Peter Rubtzoff 1971-8-20 6640 Sonoma 5 miles north of Sears Point. Comment
  UCR244600  Mentha Peter Rubtzoff 1958-9-27 4011 Sonoma Laguna de Santa Rosa, northeast of Graton, 1.5 mi north of Guerneville Road 23 Comment
  CAS-BOT-BC173615  Mentha Peter Rubtzoff 1962-7-4 4965 Sonoma Healdsburg region. Fitch Mts. Grove, 2 mi. east of Healdsburg. Russian River Comment
  RSA785218  Mentha Peter Rubtzoff 1959-8-2 4210 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC166968  Mentha spicata Peter Rubtzoff 1973-9-9 7315 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC348624  Micropus californicus var. californicus Alice Eastwood 1921-4-24 10381 Sonoma Santa Rosa Comment
  CAS-BOT-BC348631  Micropus californicus var. californicus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53960 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UC581122  Micropus californicus var. californicus H. L. Mason 1934-4-28 8090 Sonoma near orchard; Dohrman Creek, Jensen's Ranch Comment
  SEINET11806893  Micropus californicus var. californicus F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -090 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 1.2 mi N on Cavedale Road 244 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-BC322650  Microseris laciniata F. T. Bioletti 1893-6-10 s.n. Sonoma Los Guilucos Valley Comment
  UC682111  Microseris laciniata subsp. laciniata G. L. Stebbins Jr. with A. A. Beetle 1942-6-4 3287 Sonoma on State Highway No. 12 to Sebastopol 4.1 mi w Santa Rosa (e of corner of Wright Road) Comment
  UCD118900  Microsteris gracilis Botany 102 Students 1993-4-24 92 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Hillside Trail. 411 Comment
  RSA0025391  Mimulus Peter Rubtzoff 1963-6-18 5173 Sonoma Bennett Mountain Lake. Comment
  RSA0025394  Mimulus Peter Rubtzoff 1962-5-30 4849 Sonoma Freestone Marsh. Comment
  UC446449  Mimulus arvensis Milo S. Baker 1898-5-7 637 Sonoma Glen Ellen Comment
  UCD122641  Mimulus arvensis Botany 102 Students 1993-5-8 276 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon. Comment
  UCR265126  Mimulus aurantiacus Ann Howald 2015-4-1 3319 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 15.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 397 Comment
  UC27048  Mimulus congdonii F. T. Bioletti 1894-1 Sonoma near Hood's Peak Comment
  RSA535758  Mimulus douglasii David M. Thompson 1989-4-4 995 Sonoma 1.1 mi N of Porter Creek Road along Franz Valley Road. 30 ft S of (and opposite) 900 Franz Valley Road residence gate. 305 Comment
  UCD122663  Mimulus grandis Mary M. Hektner 1975-8-14 226 -A Sonoma Unit 24 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UCR248740  Mimulus guttatus Peter Rubtzoff 1970-6-21 6271 Sonoma North Coast Ranges, tributary of Mark West Creek, c. 3 mi west of Fulton 49 Comment
  UCR275268  Mimulus guttatus Peter Rubtzoff 1955-7-9 1929 Sonoma North Coast Range, Forestville Marsh 71 Comment
  UC1051635  Mimulus inodorus Peter Kamb 1950-6-16 1864 Sonoma 1 mi n Sousa Corners (nw of Sebastopol); Pitkin Marsh Comment
  UC1374916  Mimulus microphyllus Noel H. Holmgren, Liew Fah Seong 1969-6-23 3606 Sonoma 7.2 mi n Marin County line (Calif. 1) Comment
  UCD122796  Mimulus moschatus Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-7-2 96 A Sonoma Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA11104  Mimulus moschatus Carl B. Wolf 1927-9-2 1352 Sonoma Along the coast, 1 mile S of the Gualala River. Comment
  CAS-BOT-BC174581  Minuartia californica A. A. Heller; H. E. Brown 1902-3-14 5067 Sonoma Near Windsor Comment
  RSA54056  Minuartia californica J. T. Howell 1948-4-18 24207 Sonoma Hills east of Agua Caliente. Comment
  HSC4089  Minuartia douglasii H. E. Parks, S. T. Parks 1930-5-10 851 Sonoma Knights Valley 152 Comment
  JEPS42871  Mollugo verticillata Alice King Oct. 1896 Sonoma Russian River, Healdsburg Russian River; , Healdsburg Comment
  POM70494  Monardella odoratissima Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan s Mills Comment
  UC666146  Monardella villosa subsp. globosa Annetta Carter, Ethel Crum 1941-6-22 1641 Sonoma 3.3 mi e Bodega Bay; North Coast Ranges Comment
  CAS-BOT-BC314204  Monardella villosa subsp. villosa H. D. Ripley; R. C. Barneby 1945-6-22 6939 Sonoma N. of Jenner 30 Comment
  SEINET12324061  Monardella viridis W. Knight, Knight, I. 1982-1 4624 Sonoma S-facing slope of Hood's Peak 305 Comment
  CAS-BOT-BC349591  Monolopia major J. W. Congdon 1880-5-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC444986  Montia fontana Alice Eastwood 1921-4-24 10383 Sonoma Santa Rosa Comment
  JEPS42033  Montia fontana Rimo Bacigalupi with Robert Ornduff 1966-3-18 9141 Sonoma 1 mi s of Kenwood (just s of Los Guilicos Hot Springs, along the Warm Springs Road) 106 Comment
  UCD110293  Morella californica Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-29 091 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS128370  Muhlenbergia andina Roger Raiche 1999-8-28 028 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD86410  Muhlenbergia andina Freed W. Hoffman 1947-8-30 575 Sonoma Layton Mine, Austin Creek. Comment
  CAS-BOT-BC515644  Muilla maritima Rimo Bacigalupi 1926-3-27 1252 Sonoma Meadow opposite Myrtledale Geyser 1 1/2 mi north of Calistoga Comment
  UCD166498  Myosurus Peter Rubtzoff 1966-4-17 5681 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC257697  Myosurus Peter Rubtzoff 1970-5-30 6245 Sonoma 5 miles north of Sears Point. 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
  UC1135955  Myrica californica H. S. Yates 1934-4-21 3815 Sonoma near Guerneville; Duncan Mills Quad. Comment
  RSA800083  Myriophyllum Peter Rubtzoff 1971-9-3 6702 Sonoma Spring Creek Reservoir area. Comment
  CAS-BOT-BC251163  Myriophyllum aquaticum Peter Rubtzoff 1970-8-18 6318 Sonoma 5 miles north of Sears Point. Comment
  RSA800151  Myriophyllum brasiliense Peter Rubtzoff 1963-7-6 5195 Sonoma Laguna de Santa Rosa area east of Cunningham. Comment
  RSA800153  Myriophyllum brasiliense Peter Rubtzoff 1970-8-18 6318 Sonoma 5 mi N of Sears Point. Comment
  CAS-BOT-BC251162  Myriophyllum hippuroides Peter Rubtzoff 1966-8-26 5813 Sonoma Atascadero Creek Marsh. Comment
  UCD87884  Nassella lepida P. B. Kennedy 1918-5-28 s.n. Sonoma Santa Rosa to Calistoga Road. Comment
  POM207021  Nassella pulchra A. A. Heller 1902-4-9 5252 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  UCD87528  Nassella pulchra John Elliott 1958-4-6 s.n. Sonoma State Hwy. 1. 2 miles north of Jenner. Comment
  CAS-BOT-BC260289  Nassella pulchra David L. Morgan 1956-5-5 s.n. Sonoma 1 mile W of Petaluma on D Street Ext. Comment
  CAS-BOT-BC60517  Nasturtium officinale Peter Rubtzoff 1951-6-9 173 Sonoma Pitkin Marsh near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC60522  Nasturtium officinale Peter Rubtzoff 1960-5-22 4411 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville roads). Comment
  UCD116053  Nasturtium officinale Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1786 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 125 yds. 1/4 mile NW of confluence with Rattlesnake Creek. 350 Comment
  CAS-BOT-BC230267  Navarretia cotulifolia A. A. Heller 1902-6-4 5638 Sonoma San Miguel Island. Head east fork of Canyon Del Mar 0.3 miles west of the old ranch house. 152 Comment
  UC1008714  Navarretia heterodoxa Beecher Crampton 1950-6-27 597 Sonoma 6 mi ne Glen Ellen (on Trinity Road) Comment
  UC1719843  Navarretia intertexta David Fruchter 1978-9-17 99 Sonoma Diamond D. Comment
  CAS-BOT-BC230368  Navarretia leucocephala subsp. bakeri Peter Rubtzoff 1961-7-22 4672 Sonoma Bennett Mountain Lake Comment
  JEPS86768  Navarretia leucocephala subsp. bakeri Jack and Betty Guggolz 1990-4-6 1030 Sonoma about 1.25 mi nw old Windsor (n side Promenade Lane and e of Herb Lane [Road]) 41 Comment
Read comments
May 29 2009
  UC583200  Navarretia leucocephala subsp. bakeri Alice Eastwood and John Thomas Howell 1936-5-19 2520 Sonoma 2 mi n Windsor Comment
  CAS-BOT-BC233579  Navarretia prostrata Peter Rubtzoff; H. A. Froebe 1971-5-30 6491 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road Comment
  POM261291  Navarretia pubescens L. S. Rose 1940-5-22 40371 Sonoma Sonoma 30 Comment
  CDA16122  Navarretia squarrosa G. F. Hrusa, M. Gillogly 2000-7-26 15675 b Sonoma North Coast Biodiversity Arena; Leslie Creek approx. 1/4 mi. above Mark West Springs road crossing. Comment
  RSA94068  Navarretia squarrosa J. T. Howell 1947-6-26 23318 Sonoma Cunningham Marsh Comment
  RSA94272  Navarretia squarrosa Peter Rubtzoff 1951-8-19 656 Sonoma Pitkin Marsh, near Forestville: near the creek, just north of the Lower Marsh Comment
  UC1719841  Navarretia tagetina David Fruchter 1978-9-17 94 -2 Sonoma Glen Ellen Comment
  UC631639  Navarretia viscidula G. Thomas Robbins 1938-6-23 270 Sonoma just e Pitkin Marsh; Vine Hill Region Comment
  UCD119981  Nemophila heterophylla Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1753 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. In Adobe Canyon along Goodspeed Trail approx. 200 yds. From just E of Bear Creek about 5 yds. N of confluence with Sonoma Creek. 198 Comment
  CDA40366  Nemophila heterophylla J. C. Violetti 1968-5-22 s.n. Sonoma 2939 Mayette Ave., Santa Rosa. 0 Comment
  POM65327  Nemophila heterophylla M. Alice King 1897-1 s.n. Sonoma Near Healdsburg. Comment
  RSA75812  Nemophila heterophylla Lincoln Constance 1938-4-24 2151 Sonoma On Salmon Creek, 2 miles northeast of Bodega. 91 Comment
  UCSB5331  Nemophila menziesii Robbins, G. 1940-3-21 Sonoma At junction of Pleasant Avenue Road and Chalk Hill Road; 2-3 miles southeast of Windsor 91 Comment
  UC24253  Nemophila menziesii var. atomaria Michener and Bioletti Mar 1891 Sonoma Sonoma Comment
  UCD120238  Nemophila menziesii var. atomaria J. Adams; J. Weick 1993-5-8 254 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Comment
  CAS-BOT-BC157698  Nicotiana Peter Rubtzoff 1958-8-30 3939 Sonoma Vacation Beach, near Guerneville, along Russian River Comment
  CAS-BOT-BC290672  Nicotiana Peter Rubtzoff 1986-9-29 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA0034040  Nicotiana Peter Rubtzoff 1986-9-29 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA791569  Nicotiana acuminata Peter Rubtzoff 1961-6-7 4618 Sonoma Laguna de Santa Rosa, about 1 mi SE of Trenton. Comment
  UC70571  Nicotiana quadrivalvis W. A. Setchell 1905-8-13 Sonoma banks of Russian River (Bohemia); Bohemia Comment
  CAS-BOT-BC336873  Oemleria cerasiformis Greg de Nevers 1998-4-27 11199 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  CAS-BOT-BC502783  Orobanche californica subsp. grayana Greg de Nevers 1997-5-23 11005 Sonoma Pepperwood Natural Preserve, 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC361408  Orobanche fasciculata Greg de Nevers 1997-5-17 11004 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. On Oak Hill Ranch burn. 457 Comment
  CAS-BOT-BC500193  Orobanche fasciculata G. DeNevers 1981-7-31 1771 Sonoma Bodega Head, at Duncan's Landing Comment
  CAS-BOT-BC502938  Orobanche uniflora Greg de Nevers 1997-5-3 10987 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Rd 457 Comment
  CAS-BOT-BC500333  Orobanche uniflora subsp. occidentalis Elmer I. Applegate 1934-3-25 8849 Sonoma Sansal Creek, Pine Flat region, west slope Mayacmas Mountains Comment
  CAS-BOT-BC502961  Orobanche vallicola Wade Sturgeon 1928-7-16 s.n. Sonoma Sebastopol Comment
  RSA34066  Orthocarpus faucibarbatus A. A. Heller 1928-5-14 15090 Sonoma Just east of the town of Bodega. Comment
  SEINET3159751  Orthocarpus faucibarbatus L. S. Rose 1933-5-9 33158 Sonoma Bodega Bay Comment
  SEINET8733536 Image available Orthocarpus faucibarbatus Lewis S. Rose 1933-1 33158 Sonoma BODEGA BAY Comment
  SEINET9323534  Oxalis oregana John Nelson, Wnek, R. 2000-3-7 20947 Sonoma Sonoma County Comment
  UC455385  Oxalis oregana I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCSB7444  Oxalis oregana Keator, Glenn 1959-4-1 Sonoma 1 mile southeast of city limits of Camp Meeker Comment
  UC176759  Packera eurycephala var. eurycephala W. J. V. Osterhout 1909-1-1 Sonoma Geysers Comment
  CAS-BOT-BC227649  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC1102744  Panicum acuminatum var. acuminatum A. R. Kruckeberg 1949-6-4 S- 21 Sonoma Sulphur Creek , Sulphur Creek (Big Geysers) Comment
  UCD89131  Panicum acuminatum var. thermale Beecher Crampton 1969-7-14 8493 Sonoma The Geysers. Comment
  RSA0045170  Panicum dichotomiflorum Greg de Nevers 1996-9-2 10872 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road, at base of Al Cuneo's driveway. 91 Comment
  UCD15833  Parentucellia viscosa K. Mawdsley 1998-6-30 42 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 Meadow Trail about 100 yds west of Education Center and gate. 350 Comment
  CAS-BOT-BC154982  Paspalum Peter Rubtzoff 1973-9-9 7307 Sonoma Kenwood Marsh. Comment
  SEINET10717816  Paspalum P. Rubtzoff 1971-8-31 Rubtzoff 6662 Sonoma Todd Road, near Stony Point Road. Comment
  CAS-BOT-BC259692  Paspalum dilatatum Walter & Irja Knight; John Thomas Howell 1987-5-14 6386 Sonoma Llano Road near sewage treatment plant Comment
  CAS-BOT-BC265694  Paspalum distichum Peter Rubtzoff 1951-9-3 742 Sonoma Vacation Beach near Guerneville, margin of Russian River Comment
  CAS-BOT-BC366898  Passiflora citrina Greg de Nevers 1997-12-10 11109 Sonoma Fulton Comment
  CAS-BOT-BC257365  Pelargonium Peter Rubtzoff 1974-6-9 7585 Sonoma Upper Green Valley Marsh area. Comment
  RSA247449  Pennisetum glaucum Peter Rubtzoff 1968-9-21 5071 Sonoma Russian River bottom at Forest Hills, 5.5 mi east of Guerneville Comment
  JEPS78831  Penstemon heterophyllus var. heterophyllus Edward Lee 1936-6-7 2199 Sonoma on the fire trail near Highpoint (Bohemian Grove); , near Highpoint Comment
  JEPS52288  Penstemon heterophyllus var. purdyi Walter Knight and Wayne Roderick 1966-5-26 Sonoma Mark West Springs Comment
  CAS-BOT-BC245714  Penstemon newberryi var. sonomensis E. Swett 1878-6-1 s.n. Sonoma Mt. St. Helena 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
  UC399562  Pentagramma triangularis subsp. triangularis C. F. Sonne April 1887 208 Sonoma White Sulphur Springs near Vallejo Comment
Read comments
1
  CAS-BOT-BC222744  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1951-9-15 752 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  UC1329519  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1967-8-30 5872 Sonoma Upper Marsh Pitkin Marsh (southern part, near Forestville) Comment
  CAS-BOT-BC258014  Persicaria hydropiper Peter Rubtzoff 1973-9-9 7310 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC418902  Persicaria hydropiperoides Peter Rubtzoff 1960-9-14 4535 Sonoma Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads) Comment
  CAS-BOT-BC418893  Persicaria hydropiperoides John Thomas Howell 1946-8-17 22856 Sonoma The Laguna north of Sebastopol Comment
  CAS-BOT-BC419120  Persicaria lapathifolia Peter Rubtzoff 1956-9-14 2888 Sonoma Vacation Beach, near Guerneville Comment
  CAS-BOT-BC419111  Persicaria lapathifolia Peter Rubtzoff 1958-7-20 3787 A Sonoma Laguna de Santa Rosa northeast of Graton (nr. Guerneville Rd.) Comment
  CAS-BOT-BC419115  Persicaria lapathifolia Peter Rubtzoff 1969-10-29 6201 Sonoma Pond on River Road 3 mi. west of Fulton Comment
  CAS-BOT-BC419270  Persicaria maculosa Peter Rubtzoff 1969-8-29 6171 Sonoma Beach of Salmon Creek ca. 1/2 mi. upstream from Hwy. #1 Comment
  CAS-BOT-BC419278  Persicaria maculosa Peter Rubtzoff 1964-5-31 5329 Sonoma Fitch Mtn. Grove, 2 mi. east of Healdsburg Comment
  UCD60448  Persicaria pensylvanica Brenda Grewell; Gene Cooley 2007-8-23 s.n. Sonoma Sebastopol, access from Cooper Road, west of the confluence of the Laguna de Santa Rosa with Gravenstein Creek on the DFG Laguna Wildlife Area's Lago Marsino parcel. Comment
  CAS-BOT-BC330277  Petasites frigidus var. palmatus Walter Knight; Irja Knight; Dr. Stephen W. Edwards 1986-8-17 5512 Sonoma 4.85 mi from end of Mill Creek Road. Comment
  UCR90865  Petrorhagia nanteuilii Kathy Harper, D. Karr 1994-6-10 s.n. Sonoma North Coast Range, King Ridge Road along Big Austin Creek, north of Cazadero 122 Comment
Read comments
Jan 29 2010
  UC1084444  Phacelia G. Thomas Robbins 1940-3-22 304 Sonoma along Guerneville rd ca 8 mi w Santa Rosa Comment
  UC702992  Phacelia californica John Thomas Howell 1930-7-27 5403 Sonoma 1 mi n Fort Ross Comment
  CDA40384  Phacelia distans T. C. Fuller 1958-5-24 4020 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  SJSU7530  Phacelia distans L. S. Rose 1965-4-4 65060 Sonoma 1 mi N of Sonoma 60 Comment
  UCD158769  Phacelia heterophylla subsp. virgata James A. Neilson Jr. 1974-7-10 2830 Sonoma Mayacmas Mountains,west of Cobb Mtn., road to PG and E geothermal units 9 and 10. (Elevation estimated using Google Earth by label maker.) 975 Comment
  JEPS2165  Phacelia imbricata W. L. Jepson 1911-4-30 4185 Sonoma Sonoma Valley Comment
  RSA428197  Phacelia ramosissima var. montereyensis E. A. Purer 1932-7-21 16262 Sonoma Bodega Bay. Comment
  JEPS41073  Phacelia suaveolens var. suaveolens Rimo Bacigalupi and L. R. Heckard, J. R. Sweeney 1965-5-16 9110 Sonoma 1 1/4 mi due w of Sonoma-Napa County Line (along Franz Valley School Road); Franz Valley School Road 219 Comment
  CAS-BOT-BC332702  Phalaris Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7839 Sonoma Kenwood Marsh. Comment
  UC1011000  Phalaris angusta Mary Focht 1935-5-24 64 Sonoma Comment
  CAS-BOT-BC265841  Phalaris arundinacea Peter Rubtzoff 1962-6-21 4943 Sonoma Laguna de Santa Rosa area northeast of Graton, east of Laguna Road, Sonoma County Marshes Comment
  CAS-BOT-BC265912  Phalaris lemmonii David L. Morgan 1961-5-4 s.n. Sonoma Field on Stony Point Road near Graventein Highway Comment
  SEINET4182702 Image available Phalaris minor Leo Koch 1940-4-24 852 Sonoma At Cuttings Wharf near Petaluma. Comment
  UC1023572  Phalaris minor Virginia Bufford 1936-5-19 259 Sonoma Bennett Valley 2 or 3 mi from Santa Rosa; Bennett Valley Comment
  UC1132438  Phalaris paradoxa H. S. Yates 1937-6-6 6578 Sonoma near Windsor; Healdsburg Quad. Comment
  JEPS128175  Phlox speciosa Roger Raiche 2001-5-17 026 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  CAS-BOT-BC135032  Phoradendron bolleanum Catherine Best 1981-5-2 s.n. Sonoma Harrison Grade Rd 2 miles N of Occidental Comment
  SEINET10323396  Phoradendron bolleanum M. J. Williams, W. Roderick 1978-7-18 78- 228 -3 Sonoma Near Occidental. Comment
  UCD102227  Phoradendron leucarpum subsp. tomentosum G. F. Hrusa; T. D. Wilfred 1995-12-3 12481 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Approx. 1/2 distance to summit along Ida Clayton Rd. 300 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
  CAS-BOT-BC141057  Phoradendron serotinum subsp. macrophyllum Peter Rubtzoff 1965-10-10 5655 Sonoma Laguna de Santa Rosa NE of Graton (W. Guerneville Rd. crossing) Comment
  CAS-BOT-BC171217  Phoradendron serotinum subsp. tomentosum G. De Nevers 1981-7-1 1725 A Sonoma Pepperwood Ranch. Along the Road to the Studio on Horse Hill Comment
  CAS-BOT-BC171222  Phoradendron serotinum subsp. tomentosum A. A. Heller; H. E. Brown 1902-3-12 5036 Sonoma Sonoma Creek, Eastern Base of Mt. Hood Comment
  POM267616  Phyla nodiflora Lyman D. Benson 1928-6-25 350 Sonoma Street, Santa Rosa. North Coast mtn range, Sonoma Valley. 61 Comment
  CAS-BOT-BC140612  Physocarpus capitatus Peter Rubtzoff 1959-6-7 4105 Sonoma Bank of Russian RIver betw. East Guerneville and Vacation Beach, nr. Guerneville Comment
  CAS-BOT-BC140627  Physocarpus capitatus Catherine Best 1981-5-2 s.n. Sonoma Bohemian Hwy 1 mi north of Freestone Comment
  POM139826  Physocarpus capitatus A. A. Heller 1902-6-4 5647 Sonoma Santa Rosa. Comment
  CAS-BOT-BC202281  Pickeringia montana var. montana A. A. Heller 1902-6-23 5740 Sonoma Petrified Forest Comment
  CAS-BOT-BC202285  Pickeringia montana var. montana Walter Knight; Irja Knight 1963-12-27 475 Sonoma Summit, Pine Flat Rd. Comment
  POM20260  Pickeringia montana var. montana Michener, Bioletti 7160 Sonoma Hoods Peak Comment
  CAS-BOT-BC164684  Pilularia Peter Rubtzoff; Nancy Harrison 1974-5-26 7479 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UC1134141  Pinus attenuata J. B. Spring 1932-7-3 95 Sonoma 2/5 mi sw Veeder Mountain; Napa Quadrangle 609 Comment
  NY49679  Pinus contorta var. contorta S. Flowers 1988-2-5 s.n. Sonoma Sonoma Road marker, Highway 1, 52.32 mile at Pebble Beach Access trail, across Sea Ranch. Tree located 20 ft. west of Highway 1 and 12 ft. north off parking entrance Comment
  NY61622  Pinus lambertiana Collector unspecified s.n. 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
  SBBG55586  Pinus muricata D. I. Axelrod 1983-7-7 E- 3 Sonoma St Hwy 1, vicinity of Salt Point; ISOTYPE: P. muricata var. borealis 76 Comment
  UCD134776  Pinus muricata Cathy Hendel 1974-7-25 s.n. Sonoma Sea Ranch, Unit 35-A owner's map, near State Highway 1. Comment
  RSA394828  Pinus muricata var. borealis D. Axelrod 1983-7-7 E- 3 Sonoma Vicinity Salt Point, Sate Highway 1. 76 Comment
  UC400281  Pinus ponderosa J. Burtt Davy 1894-10-1 Sonoma above Knights Valley (spur of mt. on the Sonoma Co. side); Mt. St. Helena Comment
  CAS-BOT-BC72885  Pinus ponderosa James McMurphy 1908-10-3 s.n. Sonoma Smith Creek Comment
  UCD133336  Pinus sabiniana Frederica Bowcutt 1994-6-25 1916 Sonoma 609 Comment
  JEPS128341  Piperia elongata Roger Raiche 2010-7-17 037 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA788369  Plagiobothrys Peter Rubtzoff 1971-6-5 6525 Sonoma W side of Hwy 1, 0.7 mi SE of Salmon Creek Crossing. Comment
  UCR244756  Plagiobothrys Peter Rubtzoff 1969-6-15 6089 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  UCR279875  Plagiobothrys Peter Rubtzoff 1969-5-3 6018 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastopol 21 Comment
  CAS-BOT-BC173530  Plagiobothrys Peter Rubtzoff 1969-5-24 6062 Sonoma Vernal pool, 6.5 miles northeast of Penngrove, on Lichan Road. 426 Comment
  SD260916  Plagiobothrys Peter Rubtzoff 1969-6-15 6094 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR105441  Plagiobothrys bracteatus Peter Rubtzoff 1963-6-6 5169 Sonoma Laguna de Santa Rosa, east of Graton Comment
  UCR279864  Plagiobothrys bracteatus Peter Rubtzoff 1970-5-16 6218 Sonoma San Francisco Bay Region, Five miles north of Sears Point 9 Comment
  UCR70807  Plagiobothrys greenei J. T. Howell 1949-4-6 25304 Sonoma North Coast Range, southwest of Sonoma Comment
  POM204149  Plagiobothrys greenei J. T. Howell 1934-3-27 11803 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  UC796670  Plagiobothrys nothofulvus Ira L. Wiggins 1949-4-30 12067 Sonoma 4 mi w Calistoga (just w of the county line) Comment
  RSA788371  Plagiobothrys reticulatus Peter Rubtzoff, H. A. Froebe 1971-5-16 6455 Sonoma Duncans Mills Marsh. Comment
  RSA8527  Plagiobothrys stipitatus J. T. Howell 1933-4-1 10922 Sonoma Petaluma Comment
  RSA785155  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-3 6015 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  UC881361  Plagiobothrys undulatus unknown May 1935 8078 Sonoma 0.5 mi e old Fair Grounds (along Bennett Valley Highway) Comment
  RSA151887  Plagiobothrys undulatus Robert Ornduff 1960-4-21 6072 Sonoma West edge of Sonoma. Both sides of Hayes St., south of Sonoma Elementary School. Comment
  RSA783737  Plagiobothrys undulatus Peter Rubtzoff 1969-6-15 6091 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  UCD124455  Plantago erecta Jennifer Bury; Peggy Herzog 1993-5-8 263 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. Near visitor center. 381 Comment
  UCR280190  Plantago subnuda Peter Rubtzoff 1958-8-23 3907 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 31 Comment
  SEINET3854582 Image available Platystemon Lewis S. Rose 1933-5-9 33157 Sonoma Bodega Bay. Comment
  UC118438  Platystemon californicus T. S. Brandegee May 1890 Sonoma Cloverdale 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
  UC416756  Plectritis ciliosa subsp. ciliosa Milo S. Baker 1898-3-26 691 Sonoma Hills near McDonald's Reservoir Comment
  SEINET780339  Plectritis samolifolia J. Ewan 1935-5-13 9262 Sonoma Wright School on Sebastopol Road. Comment
  UCD90157  Pleuropogon californicus G. F. Hrusa 1996-3-29 12739 Sonoma Napa Valley bottom, immediately S of Tubbs Lane, approximately 2 m. NW of Calistoga. 110 Comment
  UCD90175  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma. 24 Comment
  HSC82085  Pleuropogon californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5128 Sonoma Along Roberts Rd. ca. 100 m past bridge over Copeland Creek, E of Rhonert Park 61 Comment
  UCD90113  Pleuropogon californicus var. californicus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3613 Sonoma on the Occidental Road near Barstow station. Comment
  CAS-BOT-BC260974  Pleuropogon californicus var. californicus Peter Rubtzoff 1955-4-30 1802 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  RSA155469  Pleuropogon californicus var. californicus L. S. Rose 1962-4-11 62020 Sonoma Laguna de Santa Rosa, half mile east of Cunningham. 15 Comment
  UCD90203  Pleuropogon californicus var. californicus A. A. Beetle 1946-5-6 4263 Sonoma 1/2 mile south of Cotati. Comment
  JEPS75984  Pleuropogon hooverianus Craig D. Thomsen 1977-4-16 Sonoma adjacent to Pressley Road (on Sonoma Mountain); Sonoma Mountain 225 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
  UCR275259  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma North Coast Range, Kenwood Marsh 120 Comment
  UCD92205  Poa Collector Unknown 1941-4-1 381 Sonoma field east of old S. R. Cemetary. Comment
  UCD91046  Poa douglasii P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  UCD160974  Poa howellii James A. Neilson Jr. 1975-7-8 3409 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  CAS-BOT-BC255851  Poa kelloggii P. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar Comment
  SEINET10602215  Poa nevadensis A. Arthur Heller 1902-4-9 Heller 5245 Sonoma In a railroad cut 3 miles South of Healdsburg. Comment
  CAS-BOT-BC256037  Poa pratensis Peter Rubtzoff 1960-6-8 4465 Sonoma Fife Creek Marsh Comment
  UC573876  Poa pratensis subsp. pratensis H. S. Yates 1936-5-16 5602 Sonoma 2 mi se Forestville (Pithens Marsh); Sebastopol Quadrangle Comment
  CAS-BOT-BC243249  Poa secunda subsp. secunda Catherine Best 1981-5-2 s.n. Sonoma At the edge of Stoetz Lane about 2 miles NE of Occidental Comment
  UCD92096  Poa trivialis Beecher Crampton 1955-6-17 2939 Sonoma 0.5 mile south of Guerneville. Comment
  UCD84289  Pogogyne douglasii Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  RSA83443  Pogogyne douglasii F. W. Peirson 1925-8-8 6340 Sonoma Field 6 miles south of Santa Rosa Comment
  CDA40764  Pogogyne serpylloides subsp. intermedia Peter Rubtzoff 1963-6-22 5193 Sonoma Ca. 0.5 mile east of Bennett Mtn. Lake. 0 Comment
  UC635628  Polygala californica H. L. Mason 1934-4-28 8087 Sonoma Jensen's Ranch Comment
  UC766345  Polygala californica R. F. Hoover 1939-4-18 4037 Sonoma Occidental Comment
  UCD109701  Polygala californica Roxana S. Ferris; Laura Lorraine 1961-6-15 13553 Sonoma Green Valley Road 0.8 mi. E of junction with Harrison Grade Road. Comment
  UCD109703  Polygala californica Mary M. Hektner; Sue Dakuazku, Cathy Hendel 1974-7-3 107 Sonoma Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC110538  Polygonum Peter Rubtzoff 1986-9-28 9751 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC376404  Polygonum Greg de Nevers 1996-9-2 10871 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Kitchen Creek below Silva's. 400 Comment
  CAS-BOT-BC258038  Polygonum Peter Rubtzoff 1975-8-28 8363 Sonoma Kenwood Marsh. Comment
  UCD166216  Polygonum Peter Rubtzoff 1970-5-30 6241 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC414281  Polygonum aviculare subsp. depressum G. DeNevers 1981-7-1 1737 Sonoma Pepperwood Ranch. In Pippindale Garden Comment
  JEPS103957  Polygonum californicum Jack and Betty Guggolz 1991-6-29 1201 Sonoma 195 Comment
  SEINET11935790  Polygonum lapathifolium W. Knight, Knight, I. 1984-1 Sonoma Willow Creek, 2 mi N of Petaluma Comment
  UCD158838  Polypodium californicum James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2915 Sonoma The Geysers, Section 15. (Elevation estimated by label maker using Google Earth.) 723 Comment
  UCD136916  Polypodium californicum Frederica Bowcutt 1996-5-23 2145 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon at toe of Sugarloaf Ridge just S of campground on rocky slope. 377 Comment
  UC440179  Polypodium calirhiza Michener and Bioletti Mar 1892 Sonoma <I, L, or S> Canyon Comment
  UCR222568  Polypodium glycyrrhiza George K. Helmkamp, E. A. Helmkamp 2010-6-5 16237 Sonoma North Coast Ranges, River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guerneville on slope above the Russian River 12 Comment
  CDA10946  Polypodium glycyrrhiza G. F. Hrusa, G. L. Stebbins 1994-3-28 11704 Sonoma North Coast Biodiversity Arena; Half-way to summit of grade immediately NW of Cazadero. 0 Comment
  SBBG56223  Polypodium scouleri J. T. Howell 1930-7-27 5393 Sonoma cyn 1 mi N of Fort Ross Comment
  RSA201192  Polypogon australis Peter Rubtzoff 1955-8-13 2044 Sonoma Duncan Mills Marsh. Upper portion of the marsh. Comment
  SD71383  Polypogon australis Peter Rubtzoff 1961-9-20 4754 Sonoma Open, wet creek bank, Willow Creek marsh Comment
  CAS-BOT-BC233186  Polypogon interruptus Greg de Nevers 1992-6-26 10211 Sonoma Along Franz Creek. Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 91 Comment
  CAS-BOT-BC233221  Polypogon maritimus Greg de Nevers 1992-6-26 10209 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  CAS-BOT-BC233225  Polypogon maritimus Peter Rubtzoff 1961-6-17 4628 Sonoma Bennett Mountain Lake Comment
  RSA227229  Polypogon maritimus Peter Rubtzoff 1961-6-17 4628 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC237396  Polypogon monspeliensis Walter Knight; Irja Knight 1963-8-13 276 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC237406  Polypogon monspeliensis Peter Rubtzoff 1955-7-9 1935 Sonoma Forestville Marsh Comment
  POM206737  Polypogon monspeliensis A. A. Heller 1902-4-23 5353 Sonoma Near Sonoma. Comment
  CAS-BOT-BC311810  Polypogon viridis Peter Rubtzoff 1973-8-20 7225 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UC479338  Polystichum californicum Marcus E. Jones, A. M. 1931-7-5 29162 Sonoma The Geysers Comment
  UCD168040  Polystichum californicum James A. Neilson Jr. 1981-3-13 3993 Sonoma Mayacmas Mountains, east tributary of Hummingbird Creek. 3/4 NE of confluence of Hummingbird Creek and Squaw Creek. (Newspaper lists S/2 NW/4 Sect. 34 T12 R9 while Notebook lists NE/4 SE/4 Sec. 33 T12 R9. Georeferenced to newspaper location information. Exact location unknown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC72169  Polystichum californicum Walter Knight; Irja Knight; Dr. Stephen W. Edwards 1986-8-17 5510 Sonoma 4.85 miles from end of Mill Creek Road Comment
  JEPS108622  Polystichum californicum R. Raiche 1987-1-12 70019 Sonoma W of Cloverdale, near Prichett Creek, Brush Creek, near point of inundation at Lake Sonoma 182 Comment
  CAS-BOT-BC257343  Populus Peter Rubtzoff 1973-10-10 7336 Sonoma Salmon Creek, 0.25 miles south of Freestone along creek canyon. Comment
  CAS-BOT-BC102664  Populus fremontii G. DeNevers 1982-5-3 1990 Sonoma At the Trapper's Cabin, Pepperwood Ranch Comment
  RSA595078  Populus trichocarpa Peter Rubtzoff 1986-8-31 9737 Sonoma Off Summerhome Park Road 0.2 mile W of Forest HIlls Road. Comment
  CAS-BOT-BC445291  Portulaca oleracea Peter Rubtzoff 1965-9-5 5635 Sonoma Forest Hills 5.5 mi east of Guerneville. Comment
  CAS-BOT-BC445295  Portulaca oleracea Peter Rubtzoff 1965-8-22 5610 Sonoma Russian River, Forest Hills 5.5 mi east of Guerneville. Comment
  RSA800657  Potamogeton crispus Peter Rubtzoff 1970-10-3 6407 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  RSA227252  Potamogeton natans Peter Rubtzoff 1955-8-13 2040 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC272852  Potamogeton nodosus Peter Rubtzoff 1964-7-14 5397 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC272846  Potamogeton pusillus Peter Rubtzoff 1964-7-14 5396 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC141961  Potentilla anserina subsp. pacifica Alice Eastwood 1917-5-13 s.n. Sonoma Bodega Bay Comment
  CAS-BOT-BC141950  Potentilla anserina subsp. pacifica Peter Rubtzoff 1960-5-18 4386 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141958  Potentilla anserina subsp. pacifica Peter Rubtzoff 1954-7-26 1556 Sonoma Coleman Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC354314  Prosartes Peter Rubtzoff 1957-5-4 3316 Sonoma Duncans Mills Marsh area. Comment
  CAS-BOT-BC516401  Prosartes hookeri Greg de Nevers 1993-3-24 10330 Sonoma Weimar Canyon, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 304 Comment
  CAS-BOT-BC516395  Prosartes hookeri A. A. Heller; H. E. Brown 1902-4-11 s.n. Sonoma Bodega Bay Comment
  UCSB663  Prosartes hookeri Keator, Glenn 1959-4-1 Sonoma At abandoned picnic grounds, 1 mile southeast of northern city limits of Camp Meeker on Occidental- Monterio highway Comment
  UCD125271  Prunella vulgaris Beecher Crampton 1959-6-16 5392 Sonoma 2 miles E of Occidental, Jonive School area. Comment
  JEPS62493  Prunella vulgaris var. lanceolata M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma between Guerneville and Monte Rio (Russian River); , between Guerneville and Monte Rio Comment
  UC1288496  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-3 646 Sonoma Pitkin Marsh Comment
  UC25627  Prunella vulgaris var. lanceolata J. Burtt Davy 1894-6-17 Sonoma Knights Valley Comment
  UCD113174  Prunus cerasifera Frederica Bowcutt 1995-11-19 2066 a Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Along Sonoma Creek next to bridge between outdoor center and campground. Comment
  CAS-BOT-BC368037  Prunus subcordata Greg de Nevers 1998-7-6 11298 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Leslie Road 400 Comment
  CAS-BOT-BC356497  Pseudognaphalium beneolens Walter Knight; Irja Knight 1963-8-23 386 Sonoma Joost Ranch, Calistoga Rd. Comment
  UCD135065  Pseudognaphalium californicum Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-7-2 101 Sonoma Near State Highway 1, Sea Ranch, Unit 28 Owner's Map. Comment
  UCD165870  Pseudognaphalium luteoalbum Peter Rubtzoff 1970-10-3 6403 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  HSC2215  Pseudognaphalium stramineum Roxana S. Ferris 1937-8-18 9375 Sonoma At mouth of Salmon Creek on Bodega Bay Comment
  UCD133693  Pseudognaphalium stramineum Frederica Bowcutt 1984-6-23 414 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1. Immediately N of Gerstle Cove near large parking lot. 15 Comment
  CAS-BOT-BC80186  Pseudotsuga menziesii Herman Knoche 1919-11-24 Series A, No. 3091 1/2 Sonoma East of Santa Rosa Comment
  SEINET11738932  Pseudotsuga menziesii I. Knight, Knight, W. 1981-1 3980 Sonoma 6.2 mi up Cavedale Road from jct of state route #12 Comment
  CAS-BOT-BC166787  Psilocarphus Peter Rubtzoff 1971-6-10 6531 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC210047  Psilocarphus Peter Rubtzoff 1971-6-5 6524 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  UC353797  Psilocarphus brevissimus var. brevissimus Milo S. Baker 1928-5-26 3027 b Sonoma Bennett Valley Road Comment
  UCD100924  Pterostegia drymarioides Arlene Johnston 1977-5-11 83 Sonoma Bodega Bay. Comment
  SEINET12121513  Pteryxia terebinthina var. californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -164 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  UCD45323  Quercus X chasei John M. Tucker 1952-9-20 2618 Sonoma (Q. kelloggii Newb. X Q. agrifolia Nee). California, Sonoma Co.: Voight Ranch, ca. 1.25 mi. (airline) southwest of Cunningham, along a lane running east from Voight farmhouse. Comment
  CAS-BOT-BC94703  Quercus X howellii D. E. Breedlove 1980-6-27 44776 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC94705  Quercus X howellii G. De Nevers 1981-9-5 1824 Sonoma Pepperwood Ranch. In the Garrison Yard, between the Blue Damson Plum and the Oregon Oak Comment
  CAS-BOT-BC104298  Quercus X morehus John Thomas Howell 1946-8-17 22859 Sonoma Lloyd Voit Ranch W of Cunningham Comment
  UC424815  Quercus X morehus unknown 1930-3-1 3880 Sonoma Vine Hill Region, on <?>rei Ranch Vine Hill Region Comment
  CDA21841  Quercus berberidifolia D. G. Kelch 2007-5-13 7 .293 Sonoma Bouverie Preserve; E of Hwy 12 near Glen Ellen. Comment
  UCD162764  Quercus berberidifolia Dylan O. Burge 2014-6-5 1643 Sonoma Mayacmas Mountains, western slope of Hooker Canyon, at Elarra Reserve. 500 Comment
  SACT002627  Quercus chrysolepis M. Wiesendanger 1927-5-5 Sonoma Comment
  CAS-BOT-BC86005  Quercus douglasii Peter H. Raven 1955-8-27 8756 Sonoma 3.2 mi N of Sears Point on State Route 37 Comment
  UC1193257  Quercus durata R. H. Neuns 1950-5-3 98 Sonoma 6 mi e Geyserville 441 Comment
  UCD101295  Quercus durata Daniel Sanchez-Mata; Tomas Santamaria 2008-7-13 s.n. Sonoma Healdsburg. Pine Flat Road from Road 128. Red Hill. Audubon Sanctuary. 970 Comment
  OBI70567  Quercus durata var. durata D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .283 Sonoma Cavedale Rd 518 Comment
  CAS-BOT-BC94669  Quercus garryana Lewis S. Rose 1964-8-26 64066 Sonoma 6 miles N of Penngrove 365 Comment
  SEINET5644376  Quercus kelloggii John M. Tucker 1952-9-20 2619 Sonoma Voight Ranch, ca. 1.25 mi. (airline) southwest of Cunningham, along a lane running east from the Voight farmhouse.; 0 Comment
  UCD46674  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 of Hillside Trail. 381 Comment
  UC1042517  Quercus lobata Peter Rubtzoff 1951-11-24 836 Sonoma near Forestville (s of the Upper Marsh); Pitkin Marsh Comment
  UC1135886  Quercus wislizeni var. frutescens R. W. Lundh 1932-7-21 125 Sonoma Hooker Canyon Napa Quad. 548 Comment
  UCD161308  Ranunculus aquatilis James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3695 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  UC9374  Ranunculus aquatilis var. capillaceus W. H. Brewer 1862-4-18 970 Sonoma near Sonoma Comment
  CAS-BOT-BC379125  Ranunculus aquatilis var. diffusus Peter Rubtzoff 1962-8-22 5057 Sonoma Bodega Bay Marsh Comment
  UCD123944  Ranunculus californicus Caitlin Lewis; William Mutch 1993-4-17 6 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mountain. 1 mile. Near visitor center. 365 Comment
  CAS-BOT-BC378693  Ranunculus californicus var. californicus Peter Rubtzoff 1955-4-30 1792 Sonoma Stormy Point Marsh Comment
  CAS-BOT-BC378706  Ranunculus californicus var. californicus Peter Rubtzoff 1969-6-14 6072 -E Sonoma vernal pool 6.5 mi northeast of Penngrove, on Lichen Road 426 Comment
  UC634971  Ranunculus lobbii Carl V. Meyer 1929-3-24 Sonoma Santa Rosa Comment
  UC634967  Ranunculus muricatus H. L. Mason 1928-4-7 4275 Sonoma Jenner Russian River (mouth of river) Comment
  UCD158817  Ranunculus occidentalis var. occidentalis James A. Neilson Jr. 1974-4-17 2890 Sonoma Mayacmas Mountains. Above Big Geyser Canyon. (Elevation estimated using topo map by label maker.) 914 Comment
  SBBG53137  Ranunculus occidentalis var. occidentalis M. R. Benedict 1978-4-18 Sonoma Hwy 128 ca. 5 mi W of Calistoga Comment
  UC1084433  Ranunculus orthorhynchus var. bloomeri G. Thomas Robbins 1940-3-21 291 Sonoma 2-3 mi se Windsor (on Pleasant Ave. road) Comment
  UC570300  Ranunculus orthorhynchus var. bloomeri C. M. Belshaw 1936-3-7 1555 Sonoma 1 mi ne Occidental; Sebastopol Quadrangle 38 Comment
  RSA534706  Ranunculus orthorhynchus var. platyphyllus Peter Rubtzoff 1959-5-31 4084 Sonoma Freestone Marsh Comment
  RSA155471  Ranunculus orthorhynchus var. platyphyllus L. S. Rose 1962-6-1 62063 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  SDSU10124  Ranunculus uncinatus D. F. Howe 1972-5-2 4820 Sonoma Trail above Duncan Mills pond. Comment
  UCD81448  Raphanus sativus M. Wiesendanger 1927-5-5 716 Sonoma Sonoma. Comment
  RSA289508  Rhamnus californica Edward Lee 1936-6-8 2213 Sonoma trail 3A (N Ridge to Smith Creek), Bohemian Grove Comment
  RSA390199  Rhamnus californica Christopher Davidson 1977-6-20 60115 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  UC1121738  Rhamnus californica C. M. Belshaw 1936-3-7 1558 Sonoma 0.25 mi w Trenton; Sebastopol Quad. 182 Comment
  RSA178029  Rhamnus tomentella subsp. tomentella Robert F. Thorne 1965-4-19 34285 a Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  CAS-BOT-BC53742  Rhododendron columbianum Peter Rubtzoff 1951-6-2 106 Sonoma Pitkin Marsh, near Forestville - Western branch of the Upper Marsh Comment
  CDA38870  Rhododendron columbianum T. C. Fuller 1958-5-24 3996 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  SBBG5547  Rhododendron neoglandulosum J. M. Tucker 1958-5-24 3387 Sonoma NW end of Pitkin Marsh, ca. 1.25 mi ESE of Forestville Comment
  CAS-BOT-BC229008  Rhododendron occidentale G. F. Hrusa 1989-6-7 7176 Sonoma Above Franz Valley School Rd. immed. W of Sonoma/Napa Co. line 259 Comment
  CLARK-A1528-5112  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  UCD117989  Rhododendron occidentale J. M. Tucker 1952-5-4 2361 Sonoma On bank of the Wheatfield Fork of the Gualala River, beside road from Geyserville to Stewart's Point, ca. 12 miles east of Stewart's Point. Comment
  CAS-BOT-BC200342  Rhododendron occidentale var. occidentale Peter Rubtzoff 1955-5-21 1856 Sonoma Forestville Marsh. North facing slope bordering the Marsh in the south Comment
  CDA32768  Rhododendron occidentale var. occidentale G. F. Hrusa 1990-6-2 8065 Sonoma Outer North Coast Ranges; Skagg's Springs road from Stewart's Point, approx. 1 mile inland from Hwy 1. 91 Comment
  POM131901  Rhododendron occidentale var. occidentale A. A. Heller 1902-6-24 5749 Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC200336  Rhododendron occidentale var. occidentale Walter Knight; Irja Knight 1964-2-27 557 Sonoma Ca. 2 mi. S. Gualala on hiway #1 Comment
  RSA0037117  Rhododendron sonomense G. Fred Hrusa 1989-5-8 6097 Sonoma Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  CAS-BOT-BC350939  Rhynchospora californica Peter Rubtzoff 1961-10-18 4763 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC111896  Rhynchospora capitellata John Thomas Howell 1945-8-14 21389 Sonoma Perry Marsh Comment
  CAS-BOT-BC111900  Rhynchospora capitellata John Thomas Howell 1945-7-18 21318 Sonoma Pitkin Marsh Comment
  UC1055945  Rhynchospora capitellata Peter Kamb 1950-6-16 1855 Sonoma 1 mi n Sousa Corners (nw of Sebastopol); Pitkin Marsh Comment
  UCD141235  Rhynchospora capitellata Peter Rubtzoff 1951-7-28 561 Sonoma Pitkin Marsh, near Forestville. Upper Marsh. Comment
  CAS-BOT-BC212924  Ribes menziesii F. H. Utech; W. & I. Knight 1984-4-17 84 -157 Sonoma 5 miles east of Bridgehaven on Willow Creek Road 144 Comment
  CAS-BOT-BC211981  Ribes sanguineum Alice S. M. McKenzie 1981-2-23 16 Sonoma State Hwy #1 at Kolmer Gulch, coast between Russian and Gualala Rivers Comment
  CAS-BOT-BC209369  Ribes sanguineum var. glutinosum Alice D. Sargent 1922-4-18 s.n. Sonoma Russian River near Montesano Comment
  CAS-BOT-BC168766  Ribes victoris A. A. Heller 1902-6-26 5773 Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  UC191399  Ribes victoris var. minus Michener and Bioletti 1892-7-8 629 a Sonoma Comment
  SEINET7075471  Rigiopappus leptocladus 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. (NAD 27), UTM Zone 10, 532220mE, 4251005mN. [Coordinate Datum: WGS84/NAD83]. Comment
  POM203710  Romanzoffia californica J. T. Howell 1931-4-18 6411 Sonoma Larkspur Rock near Bodega Bay. Comment
  CAS-BOT-BC74696  Rorippa curvisiliqua Peter Rubtzoff 1958-5-17 3662 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC74698  Rorippa curvisiliqua Peter Rubtzoff 1958-7-19 3772 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  RSA295091  Rorippa curvisiliqua Robert A. Norris, John L. Inase, Allen Nakagawa 1981-6-27 4207 Sonoma On the Boriolo Ranch, near Trenton Rd., just S of and paralleling River Rd., (N part of Laguna de Santa Rosa), approx halfway between Guerneville and Santa Rosa. 15 Comment
  CAS-BOT-BC152653  Rosa californica Alice Eastwood; John Thomas Howell 1936-5-19 2522 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC152672  Rosa californica Ynez Whilton Winblad 1941-6-20 s.n. Sonoma Between Santa Rosa and Ukiah, Highway 101 Comment
  CAS-BOT-BC146779  Rosa gymnocarpa Peter Rubtzoff 1954-7-27 1589 Sonoma Guerneville Marsh Comment
  POM187580  Rosa gymnocarpa Marcus E. Jones 1931-7-5 29009 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC262829  Rubus Peter Rubtzoff 1959-6-6 4089 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC262848  Rubus Peter Rubtzoff 1954-7-28 1591 Sonoma Guerneville Marsh; northwestern end of marsh. Comment
  UCD166345  Rubus Peter Rubtzoff 1953-5-16 1354 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  RSA54149  Rubus parviflorus var. bifarius Alice Eastwood, John T. Howell 1939-6-11 7411 Sonoma Near Triniti P. O. Hood Mtn range. Comment
  JEPS76920  Rubus spectabilis Robert M. Lloyd 1963-2-24 2058 Sonoma on State Highway 1, 4 mi s State Highway 12 15 Comment
  UC1073291  Rubus spectabilis George B. Rossbach 1955-3-19 310 Sonoma on thoroughfare into Bodega Harbor opposite Doran Beach Point (e edge Bodega Head); , thoroughfare into Bodega Harbor 22 Comment
  POM91786  Rubus spectabilis var. franciscanus Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  CAS-BOT-BC157184  Rubus ursinus John H. Thomas 1976-6-15 18267 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  UCR280129  Rumex Peter Rubtzoff 1964-7-29 5444 Sonoma Central Coast, Brooks Gulch Marsh 15 Comment
  CAS-BOT-BC422231  Rumex acetosella A. A. Heller 1902-6-7 5655 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  CAS-BOT-BC422235  Rumex acetosella J. D. Randall 1907-7-12 297 Sonoma Sebastopol Comment
  CAS-BOT-BC166705  Rumex conglomeratus Peter Rubtzoff 1957-8-17 3510 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC421582  Rumex crassus Peter H. Raven; R. Snow 1958-7-23 13687 Sonoma 2.6 miles north of Jenner Comment
  CAS-BOT-BC433410  Rumex crispus Mary P. Wells 1984-5-30 317 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  UCR279631  Rumex fueginus Peter Rubtzoff 1962-9-30 5097 Sonoma Vacation Beach, 2 miles below Guerneville 6 Comment
  RSA783832  Rumex obtusifolius Peter Rubtzoff 1962-10-23 5121 Sonoma Laguna de Santa Rosa area East of Graton, West of the Laguna. Between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC433741  Rumex occidentalis Mary P. Wells 1987-2-28 846 Sonoma Within the fork in the north creek south of Pacific Reach. The Seaside Meadow of The Sea Ranch. Comment
  CAS-BOT-BC166935  Rumex pulcher Peter Rubtzoff 1961-8-22 4689 Sonoma Fife Creek Marsh. Comment
  SDSU9724  Rumex pulcher D. F. Howe 1963-7-2 3579 Sonoma 4.2 miles N of juction with #12, on #1. Comment
  UC1541361  Rupertia physodes H. E. and S. T. Parks 1930-5-9 604 Sonoma along stream Knights Valley Comment
  RSA216138  Ruppia maritima Peter Rubtzoff 1962-8-3 5033 Sonoma Lower Salmon Creek Marsh. In rather deep water of Salmon Creek. Comment
  CAS-BOT-BC249312  Sagina Peter Rubtzoff 1960-5-18 4377 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC445688  Sagittaria cuneata Peter Rubtzoff 1955-10-12 2167 Sonoma East Guernewood, near Guerneville. Comment
  CAS-BOT-BC290694  Salix Peter Rubtzoff; J. Eckenwalder 1974-4-6 7352 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC126268  Salix X sepulcralis Peter Rubtzoff 1952-3-23 905 Sonoma Southern half of Lower Marsh Comment
  CAS-BOT-BC135955  Salix alba subsp. vitellina Walter Knight; Irja Knight 1987-3-16 6010 Sonoma Corner Adobe Rd. & Stage Gulch Rd. Comment
  CAS-BOT-BC103079  Salix bonplandiana C. R. Ball; H. E. Parks 1931-2-17 22 Sonoma Santa Rosa Creek, 1 mile south of Santa Rosa Comment
  RSA534507  Salix exigua Peter Rubtzoff 1966-4-30 5698 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 mile from Llano Road. Comment
  SEINET10380777  Salix exigua A. A. Heller 1902-4-8 5224 Sonoma Bennet Valley, SE of Santa Rosa. Comment
  UC453085  Salix exigua var. hindsiana W. A. Setchell 1931-7-25 6 Sonoma bed of Russian R. at Bohemian Grove near Monte Rio Comment
  UC490515  Salix exigua var. hindsiana Joseph P. Tracy 1932-5-8 9899 Sonoma Geyserville; Northern Coast Ranges Comment
  RSA0035349  Salix gooddingii Peter Rubtzoff 1955-4-9 1770 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC107798  Salix hindsiana Walter Knight; Irja Knight 1963-9-14 254 Sonoma North roadside, Storny Pt. Road 1/2 mi. W. Railroad Ave. Comment
  CAS-BOT-BC106847  Salix hookeriana Mary P. Wells 1981-4-18 s.n. Sonoma Draw, Unit 24, The Sea Ranch Comment
  SEINET5633132 Image available Salix jepsonii A. A. Heller 1902-1 5044 Sonoma Foot of Mount Hood. Comment
  UC1084372  Salix laevigata G. Thomas Robbins 1937-3-27 43 Sonoma Santa Rosa Creek Santa Rosa, Santa Rosa Creek Comment
  UC66170  Salix laevigata A. A. Heller 1902-4-23 5348 Sonoma near Sonoma Sonoma Comment
  UC353926  Salix lasiandra subsp. lasiandra Milo S. Baker 1928-3-17 2732 Sonoma 1 mi. e. of town Santa Rosa Creek Comment
  UC453097  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 15 Sonoma Bohemian Grove near Monte Rio (lower bank of Russian R.); Russian R. Comment
  UC66156  Salix lasiandra subsp. lasiandra A. A. Heller 1902-3-28 5174 Sonoma Santa Rosa Creek e. of Santa Rosa Comment
  CAS-BOT-BC128057  Salix lasiandra var. lasiandra Peter Rubtzoff; T. J. Crovello 1964-9-3 5496 Sonoma Bodega Harbor Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC128062  Salix lasiandra var. lasiandra Peter Rubtzoff 1952-3-23 890 Sonoma Pitkin Marsh, near Forestville, lower part of the Upper Marsh Comment
  CAS-BOT-BC107096  Salix lasiolepis Peter Rubtzoff 1952-3-23 894 Sonoma south of the Upper Marsh Comment
  CHSC118273  Salix lasiolepis Barbara L. Wilson 2015-9-22 18818 Sonoma Santa Rosa, Howarth Lake. 71 Comment
  UC1135035  Salix lasiolepis H. S. Yates 1934-4-21 3779 Sonoma near Bodega Bodega; Sebastopol quad. Comment
  UC482061  Salix lasiolepis Baker, Ball, Bracelin, and Crum 1931-5-9 345 Sonoma about 2 km e Bodega Bay (creek bed) Comment
  SEINET10396745  Salix lasiolepis A. A. Heller 1902-3-28 5177 Sonoma Bodega Bay. Comment
  CAS-BOT-BC107354  Salix lasiolepis var. bigelovii Alice Eastwood 1915-6-29 4809 Sonoma Bodega Point Comment
  RSA534485  Salix lasiolepis var. lasiolepis Peter Rubtzoff 1987-9-12 9849 Sonoma Russian River at Forest Hills. 5.5 miles E of Guerneville. Comment
  SD918  Salix melanopsis W. A. Setchell 1931-8-1 Sonoma Bohemian Grove, near Monte Rio, gravelly bed pf Russian River Comment
  CAS-BOT-BC129235  Salix piperi Mary P. Wells 1981-4-18 s.n. Sonoma Draw on Unit 24, The Sea Ranch Comment
  CAS-BOT-BC126192  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  RSA10901  Salix scouleriana Milo S. Baker 1933-1 s.n. Sonoma Along Santa-Rosa Hwy. At O'Farrell Hill. 3 miles W of Sebastopol. Comment
  UC482055  Salix scouleriana Baker, Ball, Bracelin, and Crum 1931-5-9 342 Sonoma 2 km. e. Occidental (on Occidental grade) Comment
  UC498690  Salix scouleriana Ynes Mexia 1933-2-18 Sonoma 4 mi. s. Camp Meeker Comment
  UC524787  Salix scouleriana W. A. Setchell 1934-7-10 5 Sonoma Coast Hwy. above Fort Ross Comment
  LA208908  Salix scouleriana Milo S. Baker; March 1933 7565 Sonoma at foot of O'Farrel Hill on Bodega Hwy Comment
  CAS-BOT-BC128943  Salix sitchensis Peter Rubtzoff 1958-8-30 3945 Sonoma Betw. East Guernewood and Vacation Beach, nr. Guerneville. Along the water line of the Russian River Comment
  CAS-BOT-BC128950  Salix sitchensis W. A. Setchell 1934-7-10 4 Sonoma Kru's Ranch, Coast Highway above Fort Ross Comment
  POM219061  Salix sitchensis Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 344 Sonoma About 2 km E of Bodega Bay. Comment
  UC1173578  Salix sitchensis Joseph P. Tracy 1935-8-18 14743 Sonoma w. of Knight's Valley (Mayacamas Creek); Mayacamas Creek 152 Comment
  LA208958  Salix sitchensis Carleton R. Ball; Bracelin, Parks, Parks 1931-4-21 35 Sonoma Mancama Creek, 25 km NE of Calistoga Comment
  CAS-BOT-BC225212  Salvia sonomensis J. Clausen 1935-5-23 1073 b Sonoma 0.3 mi. N. of entrance to Petrified Forest Comment
  CAS-BOT-BC361369  Salvia sonomensis Greg de Nevers 1997-3-20 10924 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa In Oak Hill burn 400 Comment
  JEPS97554  Salvia sonomensis R. D. Stone 1985-3-8 652 Sonoma Near ridgetop W of Stuart Canyon Mt. Veeder (approx. 2.5 airmiles W of) Comment
  UCR30517  Salvia sonomensis John C. Roos 1939-4-1 311 Sonoma Hood Peak Range, west of Calistoga. Comment
  SEINET13947665 Image available Salvia sonomensis Peter H. Raven 1954-1 6429 Sonoma N side of Hooker Creek, Hoods Peak Range, Sonoma County; ca 2000 ft alt. 610 Comment
  OBI39521  Sambucus racemosa var. racemosa F. H. Utech, Walter and Irja Knight, Irja Knight 1984-4-17 84 -159 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek rd 145 Comment
  RSA302186  Sanicula arctopoides James R. Sherock 1971-1-30 628 Sonoma Along Highway 1; Coastal Bluffs. Comment
  CDA36949  Sanicula bipinnatifida 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
  CAS-BOT-BC223347  Sanicula bipinnatifida G. H. Mallory 1920-3-29 s.n. Sonoma East end of Sonoma Ave, Santa Rosa Comment
  RSA52124  Sanicula bipinnatifida A. A. Heller, H. E. Brown 1902-3-14 5066 Sonoma Near Windsor Comment
  UC1022490  Sanicula crassicaulis C. Ritchie Bell 1952-3-19 3 X349 Sonoma 1 mi s of Geyserville 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
  UCD166462  Saponaria Peter Rubtzoff 1955-9-10 2127 Sonoma Guerneville Marsh. Comment
  POM142444  Saxifraga mertensiana A. A. Heller 1903-4-24 6616 Sonoma Woods near Cazadero. Comment
  UCD65651  Schedonorus arundinaceus Mary M. Hektner; Cathy Hendel 1974-7-24 164 A Sonoma Beside the Kirkwood house, Unit 24 Owners' Map, Sea Ranch, near State Hwy. 1. Comment
  CAS-BOT-BC311818  Schedonorus arundinaceus Peter Rubtzoff 1958-5-17 3674 Sonoma Laguna de Santa Rosa area east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC422352  Schedonorus arundinaceus Peter Rubtzoff 1962-5-5 4807 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC111439  Schoenoplectus acutus var. occidentalis Adolph Daniel Edward Elmer 1903-7-1 4940 Sonoma Vallejo Comment
  CAS-BOT-BC111529  Schoenoplectus americanus Peter Rubtzoff 1971-9-3 6689 Sonoma Springy area along southeartern border of Spring Creek Reservoir area. Comment
  CAS-BOT-BC111533  Schoenoplectus americanus Peter Rubtzoff 1970-5-16 6216 Sonoma Eldridge. In and at the edge aof shallow water of streamlet 0.7 mi NE of Arnold drive. Comment
  CAS-BOT-BC366889  Schoenoplectus mucronatus Greg de Nevers 1997-9-29 11097 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  UCD126452  Schoenoplectus pungens var. badius D. C. Fruchtenicht 1965-5-1 s.n. Sonoma around 50 yards from sea, southwest exposure; Marine Biological Station, Horseshoe Cove, Bodega Head. Comment
  SEINET11750297  Schoenoplectus tabernaemontani W. Knight, Knight, I. 1984-1 5427 Sonoma Willow Cr. Road 61 Comment
  SEINET9307598  Scirpus Unknown 2000-3-7 20945 Sonoma Sonoma Comment
  UC56352  Scirpus americanus J. Burtt Davy 1897-9-19 4056 Sonoma Petaluma Petaluma (salt-marsh) Comment
  CDA16375  Scirpus cernuus G. F. Hrusa 2000-11-13 15718 Sonoma Kortum trail head to Goat Rock. 0 Comment
  CAS-BOT-BC111118  Scirpus microcarpus Gregory Clark de Nevers 1992-7-25 10234 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. 304 Comment
  CAS-BOT-BC111109  Scirpus microcarpus John Thomas Howell; Catherine Best; Wilma Follette; Mary P. Wells 1982-4-28 54678 Sonoma Bouverine Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek. 121 Comment
  CAS-BOT-BC111110  Scirpus microcarpus Gregory Clark de Nevers 1981-6-20 1627 Sonoma In Mark West Creek, Pepperwood Ranch. Comment
  CAS-BOT-BC361398  Scleranthus annuus Greg de Nevers 1993-5-9 10441 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd., at Double Culverts 457 Comment
  UC1005694  Scoliopus bigelovii Frank W. Gould 1939-2-25 562 Sonoma canyon ca. 2 1/2 mi. s. Ft. Ross 30 Comment
  UCSB705  Scoliopus bigelovii Keator, Glenn 1959-4-1 Sonoma About abandoned picnic grounds, 1 miles southeast of northern city limits of Camp Meeker Comment
  POM188459  Scrophularia californica Marcus E. Jones 1931-7-5 29063 Sonoma West of Cloverdale. Comment
  NY415716  Scutellaria viarum A. A. Heller 1902-6-27 5786 Sonoma West of Windsor near Russian River Comment
  UCD102068  Sedum spathulifolium Winifred Anderson 1966-5-7 21 Sonoma Pine Flat Road, 10 miles east of Healdsburg. 182 Comment
  CAS-BOT-BC366869  Selaginella wallacei Greg de Nevers 1998-4-26 11194 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Al Cuneo's property in Sec. 6 400 Comment
  CDA42468  Selaginella wallacei T. C. Fuller 1958-5-24 4016 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  UC1299457  Senecio minimus Freed W. Hoffman 1946-9-1 1236 Sonoma ocean bank Bodega Park; North Coast Ranges, Bodega Park Comment
  SJSU14233  Senecio minimus C. W. Sharsmith 1989-5-14 9090 Sonoma Salt Point State Park c. 10 mi NW of Fort Ross Comment
  UCD135625  Senecio minimus Mary M. Hektner; Cathy Hendel 1974-7-26 179 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. 30 Comment
  RSA791558  Senecio vulgaris Peter Rubtzoff 1973-8-20 7220 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC173684  Senecio vulgaris Peter Rubtzoff 1961-8-22 4688 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC364679  Senecio vulgaris John H. Thomas 1976-6-15 18312 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CDA31319  Sequoia sempervirens D. G. Kelch, Ed Biffin 2010-5-3 10 .195 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC536019  Sequoia sempervirens W. A. Setchell and Victor Duran 1935-3-31 Sonoma garden of Mrs. Max Knittl Monte Rio Comment
  CDA31828  Sesbania punicea C. Owens 2010-7-7 s.n. Sonoma In the vicinity of Santa Rosa on River Road. 0 Comment
  SBBG4695  Sidalcea H. and M. Dearing 1939-5-14 3368 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC290640  Sidalcea Peter Rubtzoff 1971-6-5 6509 Sonoma Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UC871431 Image available Sidalcea calycosa Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  CAS-BOT-BC187886  Sidalcea calycosa subsp. rhizomata Peter Rubtzoff 1951-9-15 767 Sonoma Lower part of the Upper Marsh, Pitkin Marsh, near Forestville Comment
  UC1541484  Sidalcea diploscypha H. E. and S. T. Parks May 1930 625 Sonoma head of Alexander Valley Comment
  UCD116611  Sidalcea diploscypha Botany 102 Students 1993-5-8 239 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Adobe Canyon. Comment
  UCD116613  Sidalcea diploscypha Frederica Bowcutt; Jeff Kennedy 1994-5-21 1800 Sonoma about 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa, about 18 air miles NW of Napa, and about 1.5 air miles NE of Kenwood. Along the Meadow Trail, about 0.25 mile from the trail head. 396 Comment
  RSA87979  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19585 Sonoma 2 miles N. of Ft. Ross. Comment
  RSA87994  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19586 Sonoma 8 miles N. of Ft Ross. Comment
  UC1013006  Sidalcea malviflora subsp. purpurea C. L. Hitchcock 1952-6-4 19584 Sonoma one mi n Ft. Ross; n of Ft. Ross Comment
  CAS-BOT-BC290629  Sidalcea oregana subsp. valida Peter Rubtzoff 1979-7-15 9292 Sonoma Knights Valley. South side of Bavarian Lion Company ranch road, 1.25-1.5 miles west of its junction with Franz Valley Road. Comment
  SEINET3228072  Sidalcea oregana subsp. valida John Thomas Howell 1932-1 Sonoma Comment
  RSA800081  Silene Peter Rubtzoff 1962-6-21 4935 Sonoma Laguna de Santa Rosa area NE of Graton, E of Laguna Road. Comment
  JEPS50892  Silene californica M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 235 Sonoma near Guerneville; Russian River, near Guerneville Comment
  SEINET11933906  Silene gallica F. H. Utech 1986-1 86 -100 Sonoma ca 1.5 mi NE on Cavedale Road from junction with CA 12 100 Comment
  CAS-BOT-BC389220  Silene laciniata subsp. californica L. R. Abrams 1922-6-21 8097 Sonoma Healdsburg to Cloverdale Comment
  CAS-BOT-BC389228  Silene laciniata subsp. californica Volney Rattan 1877-6-12 s.n. Sonoma Guerneville Comment
  UCSB11203  Sisyrinchium californicum Breedlove, Dennis 1961-10-31 Sonoma at base of cliff; at S side of mouth of Russian River 6 Comment
  JEPS62131  Smilacina racemosa Docia Patchett 1917-5-12 Sonoma on grade near Annapolis Comment
  UC1134661  Smilacina racemosa E. Armstrong 1934-3-26 917 Sonoma 2 mi s Camp Meeker; Sebastopol Quadrangle Comment
  UC844172  Smilacina racemosa Mrs. E. C. Sutliff Aug. 1920 Sonoma near Annapolis Comment
  CDA28745  Smilacina stellata S. Blank, P. Kerr 2007-4-3 s.n. Sonoma North Coast Ranges; Annadel State Park. Hunter Spring. Comment
  RSA0030766  Solanum Peter Rubtzoff 1963-10-5 5287 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  RSA227218  Solanum americanum Peter Rubtzoff 1958-8-17 3889 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road). Comment
  CDA5905  Solanum carolinense T. C. Fuller 1967-9-12 16360 Sonoma 1605 Laguna Road, Sebastopol . 0 Comment
  SEINET11807811  Solidago occidentalis W. Knight, Wagnon, K. 1987-1 6106 Sonoma Willow Brook, N of Petaluma Comment
  CAS-BOT-BC365657  Solidago spathulata John Thomas Howell 1945-8-14 21409 Sonoma Perry Marsh Comment
  UC485623  Solidago velutina subsp. californica Miss C. M. Huak August 1912 Sonoma Monte Rio Comment
  UCD136117  Soliva sessilis P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC173701  Soliva sessilis Peter Rubtzoff 1960-5-18 4363 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC365959  Soliva sessilis Peter Rubtzoff 1952-6-10 1204 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  POM51894  Soliva sessilis Katherine Brandegee 1905-07 s.n. Sonoma Bodega. Comment
  UCD32631  Soliva sessilis Beecher Crampton 1954-6-24 2005 Sonoma Sonoma - Napa County: 5 miles northeast Calistoga, along highway 128, in roadbed. Comment
  CAS-BOT-BC164029  Sonchus Peter Rubtzoff 1955-8-20 2062 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC374742  Sonchus oleraceus Walter Knight; Irja Knight 1963-10-3 357 Sonoma Crane Canyon Comment
  UC813854  Sparganium erectum subsp. stoloniferum Roxana S. Ferris 1937-8-18 9373 Sonoma mouth of Salmon Creek Bodega Bay (on Bodega Bay) Comment
  RSA178018  Spergula arvensis R. F. Thorne 1965-4-19 34277 Sonoma Titus Ranch, Valley Ford. 18 Comment
  UCR275246  Spergularia Peter Rubtzoff 1971-7-9 6597 Sonoma San Francisco Bay Region, 5 miles north of Sears Point 9 Comment
  UCD160293  Spergularia bocconi James A. Neilson Jr. 1974-5-24 2880 Sonoma Mayacmas Mountains, Geyser Rock, ca. 3 mi. west of Whispering Pines, Sonoma County. (Elevation and georeferencing estimated by label maker.) 1127 Comment
  UCD99212  Spergularia macrotheca Michael Fleschner 1965-5-1 8 - Sonoma University Marine Laboratory, Horsehoe Cove, Bodega Head. Comment
  UCD160119  Spergularia rubra James A. Neilson Jr. 1973-6-3 2995 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  CAS-BOT-BC390725  Spergularia rubra Walter Knight; Irja Knight 1985-9-23 5178 Sonoma Lower Tubbs Island, about 1/4 mile from San Pablo Bay Comment
  CAS-BOT-BC390734  Spergularia rubra G. DeNevers 1981-6-4 1432 Sonoma Pepperwood Ranch. In Garrison yard Comment
  UCD139040  Spiranthes romanzoffiana Mary M. Hektner 1974-7-10 144 -A Sonoma Unit 35-B Owner' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC502057  Stachys Peter Rubtzoff 1968-7-13 5915 Sonoma Upper Salmon Creek Marsh Comment
  JEPS87220  Stachys ajugoides Jack and Betty Guggolz 1992-6-22 1320 Sonoma cattle pasture se Knowles Corner 36 Comment
  UCD158712  Stachys albens Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Ca. 0.5 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd. Elevation estimated by label maker. 731 Comment
  RSA227237  Stachys chamissonis Peter Rubtzoff 1962-8-22 5048 Sonoma Bodega Bay Marsh. Comment
  SEINET12331118  Stachys rigida subsp. quercetorum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -179 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 485 Comment
  UCD166327  Stellaria Peter Rubtzoff 1967-8-28 5866 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. 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
  HSC4280  Stellaria media S. N. Wiemeyer 1962-4-20 17 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  CAS-BOT-BC371406  Stellaria nitens Greg de Nevers 1993-3-24 10333 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. Weimar Canyon 457 Comment
  CAS-BOT-BC405133  Stellaria nitens D. E. Breedlove 1983-4-11 58691 Sonoma Pepperwood Ranch W of Knights Valley. Comment
  CAS-BOT-BC376286  Stephanomeria Greg de Nevers 1992-7-15 10219 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Valley Road 304 Comment
  JEPS128256  Stephanomeria virgata Roger Raiche 2000-9-2 150 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA74053  Streptanthus barbiger Milo S. Baker 1947-5-30 11775 Sonoma Located 2 miles NE of Occidental along Harrison Grade. Comment
  CAS-BOT-BC61214  Streptanthus brachiatus Lawrence F. LaPre 1985-6-5 s.n. Sonoma Socrates Mine near Lake County Line, just west of Pine Flats Road. Comment
  NY185741  Streptanthus brachiatus A. R. Kruckeberg 1949-6-5 2905 Sonoma Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line. "This locality is near junction of Socrates Mine road with Pine Flat-Middletown road on ridge west of canyon of Big Sulphur Creek. The Napa-Lake county line is 914.4 Comment
  UC1478046  Streptanthus brachiatus Charlie Patterson 1980-6-16 Sonoma ca 1 1/2 mi e Socrates Mine (near Lake Co. line) Comment
  CAS-BOT-BC61231  Streptanthus breweri Herbert L. Mason 1946-7-4 12896 Sonoma 2 miles east of Occidental. Comment
  UCD116004  Streptanthus glandulosus subsp. glandulosus Jennifer Bury; Peggy Herzog 1993-5-8 289 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. 487 Comment
  CAS-BOT-BC87236  Streptanthus glandulosus subsp. hoffmanii A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero. Comment
  UC10915  Streptanthus glandulosus subsp. secundus Edw. L. Greene 1894-6-17 Sonoma Mt. St. Helena 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
  UC1292750  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-7-4 2869 Sonoma NW of Guerneville (Russian Gulce[h]); North Coast Ranges 243 Comment
  UC985960  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1947-7-29 1063 Sonoma Gabe's Rock North Coast Ranges, Poole Ridge (1 mi nw of Guerneville) Comment
  RSA0121906  Streptanthus glandulosus subsp. secundus Patricia Wilder 1965-6-9 3629 Sonoma 2.5 mi up Los Alamos Road from CA State Hwy 12; Rincon Ridge. North Coast mtn range, Russian River drainage. 305 Comment
  UC1492747  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1951-5-24 3861 Sonoma Blue Knoll North Coast Ranges, Ungewitter Ranch (w of Cazadero) Comment
  CAS-BOT-BC87295  Streptanthus glandulosus subsp. sonomensis Peter Rubtzoff 1952-6-3 1141 Sonoma South slopes of Fitch Mountain, near Healdsburg. Comment
  UC673192  Streptanthus glandulosus subsp. sonomensis Lincoln Constance and Reed C. Rollins 1942-5-10 2863 Sonoma 4 mi n Geyserville; North Coast Ranges 60 Comment
  CAS-BOT-BC87293  Streptanthus glandulosus subsp. sonomensis Peter Rubtzoff 1952-6-1 1135 Sonoma Fitch Mountain Grove, near Healdsburg. Comment
  SEINET11998403  Streptanthus glandulosus var. sonomensis Unknown 1986-1 60156 Sonoma W of Healdsburg, Palmer Creek drainage (tributary of Mill Creek) 427 Comment
  UC2031713  Streptanthus hesperidis Sherry Adams 2009-6-10 Sonoma About 12 miles ENE from Healdsburg, via Pine Flat Road. About 500' north of the confluence of McDonnell and Ingalls Creeks Modini Ingalls Ecological Preserve of Audubon Canyon Ranch Comment
  UCD167452  Streptanthus morrisonii James Neilson 1983-6-13 4099 Sonoma East Austin Creek. (On the same date Neilson was in the upper reaches of East Austin Creek. Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167942  Streptanthus morrisonii James Neilson Date Unkown 4056 Sonoma Bergland Ranch, Austin Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1102676  Streptanthus morrisonii subsp. hirtiflorus F. W. Hoffman 1948-6-17 2344 Sonoma bluffs and cliff talus above Dorr's Cabin (headwaters of creek); North Coast Ranges, East Austin Creek; above Dorr's cabin, headwaters of East Austin Creek, Sonoma Co. Comment
  UC1492807  Streptanthus morrisonii subsp. hirtiflorus F. W. Hoffman 1948-6-17 2344 Sonoma bluffs and cliff talus above Dorr's Cabin (headwaters of creek); North Coast Ranges, East Austin Creek; above Dorr's cabin, headwaters of East Austin Creek, Sonoma Co. Comment
  JEPS2878 Image available Streptanthus tortuosus Michener and Bioletti 1893-5-30 Sonoma Hood's Peak; ; Hood's Peak, Sonoma Co. Comment
  CAS-BOT-BC540813  Symphoricarpos Peter Rubtzoff 1970-6-14 6259 Sonoma Marsh on River Road, about 3 miles west of Fulton. Comment
  CAS-BOT-BC97832  Symphyotrichum chilense Walter Knight; Irja Knight 1963-9-26 116 Sonoma ca. 3 mi. from San Antonio Rd. on I. St. Ext. Comment
  CAS-BOT-BC99379  Symphyotrichum subspicatum Peter Rubtzoff 1962-8-3 5018 Sonoma Atascadero Creek Marsh Comment
  UC469053  Symphyotrichum subspicatum Miss C. M. Hoak 1912-8-1 Sonoma Monte Rio Comment
  SEINET10575096  Tamarix parviflora John F. Gaskin 1998-7-2 Gaskin 78 Sonoma Hyde and Pearson Road, E 150 yds to corner. Comment
  CAS-BOT-BC164033  Taraxacum Peter Rubtzoff 1960-5-16 s.n. Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC262979  Thermopsis Peter Rubtzoff 1965-5-8 5527 Sonoma Atascadero Creek Marsh. Comment
  HSC96004  Thermopsis californica var. californica Thomas W. Nelson, Jane Nelson 1981-5-3 6461 Sonoma 4809 Pressley Rd., 2 mi. N of junction with Roberts Rd. Comment
  CAS-BOT-BC66809  Thysanocarpus curvipes John Thomas Howell 1933-4-2 10936 Sonoma Sonoma Creek Canyon. Comment
  POM143752  Thysanocarpus curvipes var. curvipes A. A. Heller, H. E. Brown 1902-4-14 5287 Sonoma Near Mark West Springs Comment
  CHSC57363  Thysanocarpus curvipes var. elegans Shelly A. Kirn 1991-3-28 7 Sonoma Ca. 50 yds e of Hwy 101, 0.5 mi n of Cloverdale. 97 Comment
  RSA0049971  Thysanocarpus radians Peter H. Raven 1913-4-6 1602 Sonoma Lower slopes of Rincon River. 4 miles from Santa Rosa to Sonoma. 243 Comment
  SBBG2854  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3384 Sonoma N of Fort Ross Comment
  CAS-BOT-BC447588  Tiarella trifoliata var. unifoliata J. W. Congdon 1901-8-6 s.n. Sonoma Trail from Shell Beach to Pomo Campground. 40 Comment
  CAS-BOT-BC447599  Tiarella trifoliata var. unifoliata Catherine Best 1981-6-5 s.n. Sonoma Skaggs Spring Road 3 mi east of Stewarts' Point Comment
  UCR265119  Tonella tenella Ann Howald 2015-4-1 3317 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 15.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 397 Comment
  UCD128162  Torilis arvensis G. F. Hrusa; R. Gross 1999-6-12 15077 Sonoma Foote Ranch, corner of Ida Clayton Rd and Hwy 128, Knights Valley. Comment
  UCR218632  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 2010-6-4 16214 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), about five miles east of its junction with US-101, 5.85 air mi. east (88 deg. ) of Windsor 145 Comment
  POM316512  Torilis arvensis Patricia Wilder 1965-6-10 3641 -a Sonoma About one mile from junction of Fort Ross Road and Seaview Road, on Seaview Road 549 Comment
  SEINET5850106 Image available Torilis arvensis Robert A. Norris, John L. Inase, Allen Nakagwa 1981-1 4205 Sonoma Local in dry ditch by Trenton Rd., just S of and paralleling River Rd., (near N part of Laguna de Santa Rosa), approx. halfway between Guerneville and Santa Rosa, Sonoma Co. Calif. 15 Comment
  UCD134688  Torreya californica Andrew T. Leiser 1969-6-25 s.n. Sonoma Just So. Ft. Ross Park, Highway 1. Comment
  UCD135170  Torreya californica A. T. Leiser 1969-6-25 s.n. Sonoma Just So. Ft. Ross Park, Highway 1. Comment
  UCR265548  Torreyochloa pallida var. pauciflora Ann Howald, Christina Freeman 2015-6-1 3412 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, northwest corner, south of Marsh Trail 362 Comment
  CAS-BOT-BC169262  Toxicodendron diversilobum Saichi Kawahara 1968-4-20 326 Sonoma Trinity Road, 1 mile northeast of Highway 12 152 Comment
  JEPS58985  Tracyina rostrata John Thomas Howell 1967-6-17 42599 Sonoma Arthur E. Cooley ranch, at confluence of Galloway and Dry Creeks, n Sonoma County Galloway Creek, Dry Creek 182 Comment
  CAS-BOT-BC377111  Tragopogon porrifolius Volney Rattan 1877-6-6 s.n. Sonoma Healdsburg Comment
  SEINET9299121  Tragopogon porrifolius Unknown 1990-5-10 Sonoma Grassy meadow edge With Brassica, Plantago, Raphanus Comment
  UCD81429  Tragopogon porrifolius M. Wiesendanger 1927-5-5 s.n. Sonoma Sonoma. Comment
  POM188235  Trichostema laxum Marcus E. Jones 1931-7-5 28816 Sonoma Geysers Comment
  UC971948  Trientalis latifolia Martha Meagher 1947-4-6 102 Sonoma county road 1/2 mi w of Freezeout Creek (across Russian River from Duncan's Mills) Comment
  HSC17939  Trientalis latifolia James Faro 1962-4-20 1 Sonoma About 5 mi. N of Geurnville on the Old Cazadero Rd. Comment
  CAS-BOT-BC173536  Trifolium Peter Rubtzoff 1974-6-2 7510 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC173570  Trifolium Peter Rubtzoff 1974-4-17 7373 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166753  Trifolium Peter Rubtzoff 1976-5-30 8554 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC173578  Trifolium Peter Rubtzoff; Nancy Harrison 1978-5-20 9188 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC173628  Trifolium Peter Rubtzoff 1974-5-18 7428 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  POM316686  Trifolium Patricia Wilder 1965-6-10 3650 Sonoma Seaview road, ca. 1 miles north of junction with Fort Ross road. 549 Comment
  UC1130009  Trifolium albopurpureum var. dichotomum H. S. Yates 1934-4-21 3821 Sonoma near Duncan Mills; Duncan Mills quadrangle 60 Comment
  RSA216712  Trifolium amoenum Robert F. Hoover 1969-5-26 11349 Sonoma 2 miles S of Petaluma on Point Reyes Road Comment
  UC630864  Trifolium barbigerum C. V. Piper 1904-5-27 6350 Sonoma Petaluma Comment
  UC16440  Trifolium bifidum var. bifidum H. N. Bolander 1864-1 3856 Sonoma Russian River Bed Comment
  CAS-BOT-BC368062  Trifolium ciliolatum Greg de Nevers 1998-5-26 11260 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  CDA36828  Trifolium ciliolatum 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
  SEINET7042676  Trifolium ciliolatum A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  JEPS2903 Image available Trifolium columbinum var. argillorum W. L. Jepson 1893-5-3 13740 Sonoma Mt. St. Helena grade Napa River Basin; Napa River Basin, Mt. St. Helena grade Comment
  SEINET12166391  Trifolium cyathiferum H. K. Wagnon 1989-1 1888 Sonoma ca 20 yards N of Fort Ross Schools Reservoir 122 Comment
  CHSC33018  Trifolium depauperatum var. depauperatum Jane A. Rogers 1979-4-14 7 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  UC16467  Trifolium depauperatum var. depauperatum Michener and Bioletti 1892-5-1 Sonoma Schellville Comment
  POM21428  Trifolium depauperatum var. truncatum A. A. Heller, H. E. Brown 1902-4-8 5229 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UCR141952  Trifolium dichotomum Beecher Crampton 1967-5-15 7927 Sonoma Coast Range, Lytton, Alexander Valley 122 Comment
  UCSC010687  Trifolium dichotomum R. Morgan 1995-5-18 2612 Sonoma Serpentine outcrop 4 miles up Coleman Valley Road from Occidental Comment
  UCD167338  Trifolium dubium James A. Neilson Jr. 1983-5-9 4091 Sonoma Mayacmas Mountains. About 3 mi north of beginning of Geysers-Healsderg Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC16619  Trifolium microcephalum H. N. Bolander 1864-1 3852 Sonoma Russian River Bed Comment
  UCR255043  Trifolium microcephalum Greg de Nevers 1997-4-24 10976 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  UC165622  Trifolium microdon Milo S. Baker 1898-5-7 642 Sonoma Glen Ellen Comment
  UCD109385  Trifolium subterraneum Curtis Daehler; Ngan Lu 1993-5-8 271 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. 411 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
  UCD109332  Trifolium tomentosum P. G. Connors 1966-5-12 366 Sonoma west of Sonoma Creek, 8 km south of Sonoma. Comment
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Feb 19 2013
  JEPS74301  Trifolium variegatum var. melananthum Peter Rubtzoff 1969-5-3 6023 Sonoma e Sebastopol (Laguna de Santa Rosa) Comment
  JEPS4393  Trifolium variegatum var. variegatum E. Ferguson Jun 8 1919-Jun 10 1919 240 Sonoma near Guerneville Comment
  UCD55337  Trifolium vesiculosum Ellen Dean 2006-6-28 3181 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  JEPS4162  Trifolium willdenovii Milo S. Baker 1898-6-12 645 Sonoma Geyser Canyon Comment
  UC725692  Trifolium willdenovii A. A. Heller 1902-6-10 Sonoma Santa Rosa Comment
  RSA13534  Trifolium willdenovii H. E. Parks 1930-5-9 621 Sonoma Alexander Valley. Comment
  SEINET12165540  Trifolium willdenovii F. H. Utech 1986-1 86 -122 Sonoma 3 mi SW on Sonoma Mt. Road from junction with CA 12, near Jack London Historical Park 250 Comment
  UC535099  Trifolium willdenovii H. E. Parks 1930-5-9 621 Sonoma edge of Alexander Valley Comment
  UCD33092  Trifolium willdenovii Beecher Crampton 1966-5-10 7722 Sonoma Sonoma County, ca. 2 miles west of Fulton along River Road. Comment
  OBI78224  Trifolium wormskioldii Michener & Bioletti, Bioletti May1893 s.n. Sonoma Kenwood Comment
  UC85324  Trifolium wormskioldii Michener and Bioletti 1892-5-15 Sonoma South Los Guilicos Comment
  CAS-BOT-BC520851  Trillium albidum Greg de Nevers 1993-4-6 10358 Sonoma Pepperwood Ranch Natural Preserve: 3450 Franz Valley Road 304 Comment
  JEPS76933  Trillium ovatum Robert M. Lloyd 1963-2-24 2045 Sonoma abandoned picnic ground 0.5 mi. n. of Occidental on rd. to Camp Meeks 45 Comment
  UC72279  Trillium ovatum Milo S. Baker 1898-4-2 Sonoma near Guerneville Guerneville Comment
  UCD139917  Trillium ovatum L. Whitney 1932-4-1 s.n. Sonoma Vine Hill, Santa Rosa. Comment
  CHSC33029  Triphysaria eriantha Jane A. Rogers 1979-4-14 8 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  JEPS11169  Triphysaria versicolor subsp. faucibarbata R. F. Hoover 1939-4-18 4034 Sonoma Occidental Comment
  JEPS73311  Triphysaria versicolor subsp. faucibarbata Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 750 Sonoma 1 mi w of Two Rock Junction Comment
  UC673454  Triphysaria versicolor subsp. faucibarbata H. L. Mason 1928-4-8 4297 Sonoma in fields near Sebastopol Comment
  UC886476  Triphysaria versicolor subsp. faucibarbata A. A. Heller 1938-5-14 15090 Sonoma just e Bodega Comment
  SBBG68603  Triphysaria versicolor subsp. faucibarbata H. E. Parks 1920-5-9 631 Sonoma Knights Valley Comment
  SEINET13748164  Triphysaria versicolor subsp. faucibarbata W. Roderick 1967-5-6 s. n. Sonoma 3 mi SE of Petaluma 15 Comment
  UC1133276  Trisetum canescens H. S. Yates 1936-5-16 5609 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  RSA264776  Triteleia hyacinthina Peter Rubtzoff 1971-6-5 6511 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Road. Comment
  CHSC22981  Triteleia laxa Robert A. Schlising; Lloy Thurman 1962-6-15 2305 Sonoma Dutcher Creek Road, S of Cloverdale and Asti. Comment
  SEINET7067244  Triteleia laxa A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1 and east of Ocean Cove. Coordinate datum: NAD27. Comment
  SEINET7067336  Triteleia laxa A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles East of Windsor on Mendocino Avenue. Coordinate datum: NAD27. UTM Zone 10, 523728mE, 4258330mN. Comment
  CAS-BOT-BC527036  Triteleia laxa D. E. Breedlove 1980-6-27 44750 Sonoma Pepperwood Ranch west of Knights Valley Comment
  CAS-BOT-BC527042  Triteleia laxa John H. Thomas 1976-6-16 18330 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  SD112291  Triteleia laxa Darley F. Howe 1963-7-2 Sonoma Sea bluff, 4.2 miles north of junction with #12 on #1. Comment
  CAS-BOT-BC527977  Triteleia peduncularis Peter Rubtzoff 1962-6-19 4924 Sonoma Occidental Marsh Comment
  CAS-BOT-BC74109  Turritis glabra John F. Emmel 1971-5-8 348 Sonoma Above Mark West Springs Road along Mark West Creek, 0.5 mile south of Mark West Springs. 146 Comment
  RSA216183  Typha latifolia Peter Rubtzoff 1960-9-14 4537 Sonoma Laguna de Santa Rosa east of Graton below Occidental and Guerneville roads. Comment
  UCD164987  Ulmus Peter Rubtzoff; Nancy Harrison, Ruth Hass 1974-8-31 7854 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC382822  Uropappus lindleyi D. E. Breedlove 1983-5-4 58699 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC403975  Urtica dioica subsp. gracilis Peter Rubtzoff 1962-9-16 5088 Sonoma Vacation Beach, 1.5 mile below Guerneville along the Russian River 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
  CAS-BOT-BC404237  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-7-27 1584 Sonoma Guerneville Marsh Comment
  RSA471153  Vaccinium parvifolium Christopher Davidson 1977-6-20 6031 Sonoma Ridge Crest Rd., on Sea Ranch property south of Gualala River. 30 Comment
  CAS-BOT-BC76170  Vancouveria planipetala Volney Rattan 1877-6-14 s.n. Sonoma Guerneville. Comment
  JEPS58976  Verbascum virgatum Pat Watters and Walter Knight 1963-7-19 Sonoma Gravenstein Highway intersection with US 101 Freeway Cotati (Cotati) Comment
  POM64648  Verbena lasiostachys var. lasiostachys A. A. Heller 1902-6-27 5785 Sonoma West of Windsor near Russian river. Comment
  CAS-BOT-BC262805  Veronica Peter Rubtzoff 1974-9-7 7867 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  UCD166504  Veronica Peter Rubtzoff 1959-4-18 4025 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of the Guerneville road crossing. Comment
  CAS-BOT-BC164370  Veronica Peter Rubtzoff 1962-6-8 s.n. Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC166701  Veronica americana Peter Rubtzoff 1954-8-3 1632 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC262801  Veronica americana Peter Rubtzoff 1977-9-4 9127 Sonoma Cunningham Marsh area, ca. 1 air mile west-southwest of Cunningham Station. Comment
  RSA783733  Veronica americana Peter Rubtzoff 1960-6-9 4481 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  CAS-BOT-BC177117  Veronica americana Peter Rubtzoff 1955-6-4 1896 Sonoma Stony Point Marsh. Comment
  UCR255034  Veronica peregrina Greg de Nevers 1998-4-21 11159 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC267247  Viburnum ellipticum Greg de Nevers 1982-5-17 2012 Sonoma Pepperwood Ranch. Mark West Creek and Leslie Creek Comment
  RSA799986  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh. Comment
  UCD108841  Vicia Mary M. Hektner; Sue Dakuazku, Cathy Hendel 1974-7-3 108 Sonoma Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD165332  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh area. Comment
  RSA92779  Vicia dasycarpa Peter H. Raven 1951-4-22 2786 Sonoma Hills E. of Agua Caliente. Comment
  UCR255891  Vicia hirsuta Greg de Nevers 1993-5-6 10425 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS73355  Vicia sativa Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 758 Sonoma 1 mi w Two Rock Junction Comment
  JEPS87244  Vicia tetrasperma Jack and Betty Guggolz 1991-5-27 1154 Sonoma s of s end Meyers Grade (between Hwy 1 and the ocean) 182 Comment
  CHSC63932  Viola adunca John Hale 1990-4-12 23 Sonoma 610 m. N. of Stillwater Cove. 24 Comment
  SEINET6176299  Viola adunca James Faro 1962-4-22 23 Sonoma Ocean Cove Ranch, about 4 miles north of Fort Ross on Highway 1.; 0 Comment
  UC1762559  Viola douglasii Milo S. Baker 1928-3-1 3239 Sonoma Melitta, Golf Club Links Comment
  CDA122  Viola glabella D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .285 Sonoma Cavedale Rd. Comment
  CAS-BOT-BC536909  Viola glabella Volney Rattan 1877-6-14 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC536910  Viola glabella Dorothy Scherer 1996-3-25 012 Sonoma Kolmer Gulch, just E of Hwy 1 and S side of stream, Fort Ross State Historic Park 11 Comment
  UCD110696  Viola ocellata Thomas Miller 1976-5-8 25 Sonoma Canyon 3 Creek. 1.1 miles N of River Road and Russian River. 106 Comment
  UC540625  Viola palustris subsp. brevipes Milo S. Baker 1935-8-1 7692 b Sonoma Kenwood Garden Kenwood; Kenwood, Sonoma Co. Comment
  JEPS76916  Viola sempervirens Robert M. Lloyd 1963-2-24 2048 Sonoma 0.5 mi n of Occidental (on road to Camp Meeks, abandoned picnic ground) 45 Comment
  UC1742247  Viola viarum Milo S. Baker 1939-4-1 9273 Sonoma Brookside Garden Comment
  SBBG40537  Viscum album L. S. Rose 1966-5-8 Sonoma ca. 1 mi from Sebastopol on Gravenstein Hwy N Comment
  UCR55537  Viscum album William McCartney 1966-5-4 s.n. Sonoma Residential property, NW corner of Mills Station Road and Gravenstein Hwy North, Sebastopol 55 Comment
  CAS-BOT-BC203130  Vitis californica Lewis S. Rose 1968-6-25 68115 Sonoma Rincon Ridge ne. of Santa Rosa 121 Comment
  CAS-BOT-BC385036  Vitis californica L. R. Abrams 1922-6-21 8099 Sonoma Healdsburg to Cloverdale Comment
  UCD58728  Vitis californica Eric Wada 2006-9-3 RR 3 Sonoma On Westside Road between Healdsburg and Guerneville. North bank of Russian River 18 Comment
  SEINET10691477  Vitis californica John H. Redfield 1872-8-26 Redfield 1106 Sonoma Geysers Comment
  CAS-BOT-BC199896  Vulpia bromoides G. DeNevers 1981-7-1 1725 B Sonoma On the slope W of the Goat Pen at the Garrison House Comment
  CAS-BOT-BC199900  Vulpia bromoides John Thomas Howell 1947-6-26 23314 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC199908  Vulpia bromoides Peter Rubtzoff 1960-5-18 4365 Sonoma Bodega Head Marsh Comment
  RSA94641  Vulpia bromoides Peter Rubtzoff 1952-5-31 1095 Sonoma Eastern branch of the upper marsh. Comment
  SEINET197662 Image available Vulpia bromoides Leo Koch 23/47/0001 85564 Sonoma At Geysers in Sulfur Creek Canyon. Comment
  SEINET5427986  Vulpia microstachys L. Koch 1940-4-22 835 Sonoma At Geysers in Sulfur Creek Canyon Comment
  UC933823  Vulpia microstachys var. ciliata Leo Koch 1940-4-22 824 a Sonoma Geyers; Sulphur Creek Canyon Comment
  UCD151186  Vulpia microstachys var. ciliata James A. Neilson Jr. 1974-4-17 3486 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  SEINET10559775  Vulpia microstachys var. ciliata Henry N. Bolander Bolander 37 Sonoma Geysirs, lower California Comment
  UC971689  Vulpia microstachys var. pauciflora Leo Koch 1940-4-22 838 a Sonoma Geysers; Sulphur Creek Canyon Comment
  UCD94740  Vulpia myuros Beecher Crampton 1955-4-11 2470 Sonoma Green Valley. Comment
  UCD94793  Vulpia myuros Hursh 1919-6-12 3247 Sonoma Santa Rosa. Comment
  CAS-BOT-BC185834  Vulpia myuros subsp. megalura W. L. Jepson 1911-4-30 4186 Sonoma Sonoma Valley 83 Comment
  JEPS3025  Vulpia myuros var. hirsuta Milo S. Baker Apr 1952 12395 Sonoma Kenwood, in front of Maplewood House Kenwood Comment