Search Results — 2000 specimen records retrieved (1255 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC221681  Abronia umbellata subsp. breviflora Alice Eastwood 1900-7-4 Sonoma Bodega Point Comment
  JEPS44843  Acaena pinnatifida var. californica W. L. Jepson 1931-7-19 15933 Sonoma Bodega, Watson School 152 Comment
  CAS-BOT-BC332799  Acer macrophyllum John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54011 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the west slope of Sonoma Mountain 457 Comment
  RSA785741  Acer macrophyllum Carrie A. Herd 1982-5-9 91 Sonoma Trinity Road; turnout; down hillside of road cut. Comment
  UC18098  Acer negundo J. Burtt Davy 1896-3-13 1656 Sonoma Duncan's Mills Comment
  UC1084475  Acer negundo var. interior G. Thomas Robbins 1937-6-18 244 Sonoma Santa Rosa Santa Rosa Creek, Santa Rosa (bed of Santa Rosa Creek) Comment
  SEINET6998157  Achillea borealis subsp. californica Wanda P. Vestal, A. G. Vestal 1962-4-11 s.n. Sonoma 1 mile east of Occidental. Comment
  UC496396  Achillea millefolium Merle Randall 1930-6-10 Sonoma shore above mouth Russian River Comment
  CAS-BOT-BC30088  Achillea millefolium W. E. Lawrence 1942-1-1 L 5031 Sonoma Bodega Coast, grown in Stanford gardens Comment
  UCD128330  Achillea millefolium G. V. Morejohn 1954-5-23 36 Sonoma at roadside, between Petaluma and Dillon Beach. Comment
  CLARK-A1528-2275  Achlys triphylla John C. Roos 1957-7-2 6646 Sonoma Millers Ridge Comment
  UC88432  Achyrachaena mollis W. E. Bryant Sonoma Healdsburg Comment
  RSA783728  Achyrachaena mollis Peter Rubtzoff 1963-6-18 5180 Sonoma Bennett Mountain Lake. Comment
  UCD104098  Acmispon brachycarpus H. S. Yates 1934-4-22 3861 Sonoma Near Petrified Forest. 243 Comment
  UCD104106  Acmispon glaber Frederica Bowcutt 1994-6-12 1871 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail above Adobe Canyon Road (road visible from trail.) Less than 1/8 mile SW of trail juncture with Pony Gate Gulch Creek. 326 Comment
  OBI12975  Acmispon glaber var. glaber Robert F. Hoover 1964-9-8 9289 Sonoma Timber cove Comment
  CAS-BOT-BC30279  Adenocaulon bicolor Volney Rattan 1877-6-25 s.n. Sonoma Cloverdale Comment
  JEPS128363  Adiantum capillus-veneris Roger Raiche 2000-5-27 112 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS97806  Adiantum capillus-veneris R. Raiche 1983-6-25 30523 Sonoma The Cedars; Headwaters of Austin Creek 365 Comment
Read comments
Oct 22 2013
  CAS-BOT-BC65686  Adiantum jordanii Walter Knight; Irja Knight 1963-12-27 459 Sonoma Pine Flat Rd. Comment
  CAS-BOT-BC202703  Aesculus californica Margot Lowry 1983-5-5 27 Sonoma 1 mi from top of Sonoma Mtn Rd on Sonoma Mtn. 500 Comment
  SEINET12237640  Aesculus californica F. H. Utech 1986-1 86 -103 Sonoma ca 1.5 mi NE on Cavedale Road from junction with CA 12 100 Comment
  UCD151194  Agastache urticifolia James A. Neilson Jr. 1974-7-10 2829 Sonoma Mayacmas Mountains, road to PG and E geothermal unit 9. (Elevation estimated using Google Earth by label maker.) 975 Comment
  CAS-BOT-BC29574  Agoseris apargioides var. eastwoodiae Doreen Smith 2003-5-22 s.n. Sonoma Bodega Dunes, SE of research facility Comment
  UC891242  Agoseris grandiflora var. grandiflora Alice Eastwood 1921-5-8 10481 Sonoma Petaluma Comment
  POM180621  Agoseris hirsuta J. T. Howell 1930-6-8 5268 Sonoma North end of Bodega Bay. Comment
  CAS-BOT-BC422324  Agropyron Greg de Nevers 1989-4-1 9064 Sonoma Pepperwood Ranch Natural Preserve. Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CAS-BOT-BC166697  Agrostis Peter Rubtzoff; Tim Tunison; Nancy Harrison 1976-6-5 8584 Sonoma False Lake Meadow area, Annadel State Park. Comment
  RSA785931  Agrostis Peter Rubtzoff 1973-7-24 7195 Sonoma Upper Green Valley Marsh. Comment
  RSA785933  Agrostis Peter Rubtzoff 1974-5-25 7453 Sonoma Upper Green Valley Marsh. Comment
  UCD166338  Agrostis Peter Rubtzoff 1968-8-24 5933 Sonoma Upper Salmon Creek Marsh. Comment
  RSA129634  Agrostis H. S. Yates 1936-4-3 5574 Sonoma 1 mile NE of Petrified Forest. 305 Comment
  SEINET10717804  Agrostis P. Rubtzoff 1967-8-22 Rubtzoff 5857 Sonoma SE of Lower Salmon Creek Marsh. Comment
  SACT000118  Agrostis alba Herbert Mason 1946-7-4 Sonoma Pitkin Marsh, btw Santa Rosa and Forestville Comment
  UC1146626  Agrostis alba Freed W. Hoffman 1942-8-29 2269 Sonoma near Guerneville (Lone Mountain Farm); North Coast Ranges, Lone Mountain Farm Comment
  UCD37154  Agrostis blasdalei Beecher Crampton 1957-7-11 4340 Sonoma Sonoma County, 2.5 miles north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  UCD51836  Agrostis blasdalei Beecher Crampton 1957-7-11 4340 Sonoma just south of Portugese Beach, Sonoma Coast State Park, 2.5 miles north Salmon Creek. Comment
  UCD37148  Agrostis densiflora Beecher Crampton 1957-7-11 4320 Sonoma Sonoma County, 0.5 mile north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  UCD51888  Agrostis densiflora Beecher Crampton 1957-7-11 4320 Sonoma Sonoma Coast State Park, 1/2 mile north of Salmon Creek. Comment
  UCD51967  Agrostis densiflora P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  UCD167557  Agrostis exarata James A. Neilson Jr. 1975-7-8 3381 Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD52506  Agrostis exarata Freed W. Hoffman 1941-5-27 2175 Sonoma Lone Mountain Farm, near Guernerville. Comment
  SEINET10790027  Agrostis exarata A. Arthur Heller 1902-6-4 Heller 5641 Sonoma Santa Rosa. Comment
  UCD52229  Agrostis exarata var. pacifica Beecher Crampton 1957-7-22 4381 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC139556  Agrostis gigantea Peter Rubtzoff 1951-7-21 514 Sonoma Pitkin Marsh, near Forestville. Between the Upper and the Lower Marshes. Comment
  CAS-BOT-BC139550  Agrostis gigantea David L. Morgan 1955-7-18 s.n. Sonoma 5th Street, Petaluma. Comment
  RSA144721  Agrostis hallii Roxana S. Ferris, Laura Lorraine 1961-6-15 13568 Sonoma About 1/8 mile beyond County Dump Comment
  UCD36302  Agrostis hallii Beecher Crampton 1953-5-19 1298 Sonoma Sonoma County, 5 miles west of Calistoga, on Highway 128, at Napa Coutny line. Comment
  UC1146632  Agrostis microphylla Freed W. Hoffman 1941-6-15 2153 Sonoma near Salt Point (Eckert Ranch); North Coast Ranges, Eckert Ranch Comment
  UCD148468  Agrostis microphylla Peter Rubtzoff 1964-6-24 5368 Sonoma Lower Salmon Creek Marsh. Comment
  UCD53048  Agrostis microphylla Beecher Crampton 1969-7-14 8494 Sonoma The Geysers, 12 miles (in direct line) east of Cloverdale. Comment
  UCD53054  Agrostis microphylla Freed W. Hoffman 1941-6-15 2153 Sonoma Eckert Ranch near Salt Point, Sonoma Coast. Comment
  CAS-BOT-BC138920  Agrostis pallens G. DeNevers 1981-6-6 1483 Sonoma Pepperwood Ranch. South slope of Telegraph Hill. Comment
  CAS-BOT-BC138926  Agrostis pallens G. DeNevers 1981-6-20 1592 Sonoma Pepperwood Ranch. Confluence of Mark West Creek and Leslie Creek. Comment
  UCD53211  Agrostis pallens R. Tofsrud 1951-5-1 s.n. Sonoma Summit of road between Kenwood and Oakville. Comment
  RSA313173  Agrostis stolonifera H. L. Mason 1946-7-4 12888 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  SEINET3127807  Aira caryophyllea Michener, Bioletti sn Sonoma S. Los Guilicos Comment
  CAS-BOT-BC138190  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
  SEINET11689067  Aira praecox H. K. Wagnon 1989-1 1873 Sonoma Salt Pt. State Park 0 Comment
  CAS-BOT-BC445335  Alisma lanceolatum Peter Rubtzoff 1954-7-17 1550 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC445457  Alisma triviale Walter Knight; Irja Knight 1963-1-1 639 Sonoma N. side San Antonio Road about half way between D St. Ext and I. St. Ext. Comment
  RSA0051269  Allium Greg de Nevers 1993-5-17 10450 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Devil's Kitchen east of 3865 Franz Valley Road. 100 Comment
  CAS-BOT-BC462389  Allium amplectens Milo S. Baker 1934-4-28 7754 Sonoma Jensen ranch. West of Dry Creek Comment
  RSA63706  Allium peninsulare var. franciscanum Milo S. Baker 1950-5-20 s.n. Sonoma About 1 mile SW of Kenwood in Hope Valley Comment
  CAS-BOT-BC453448  Allotropa virgata Hugh Leech 1966-5-30 s.n. Sonoma Ida Clayton Road summit, at Lake Co. line 807 Comment
  CAS-BOT-BC169654  Alnus rhombifolia Peter Rubtzoff 1960-6-10 4497 Sonoma Fife Creek Marsh Comment
  CAS-BOT-BC169657  Alnus rhombifolia Peter Rubtzoff 1960-6-9 4491 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road Comment
  CAS-BOT-BC251207  Alnus rhombifolia Peter Rubtzoff 1960-6-11 4504 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  RSA800595  Alnus rubra Peter Rubtzoff 1966-11-9 5836 Sonoma Salmon Creek near Freestone. Comment
  CAS-BOT-BC138042  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1957-5-11 3332 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC138048  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1959-5-31 4083 Sonoma Freestone Marsh. Comment
  RSA129282  Alopecurus aequalis var. sonomensis H. S. Yates 1936-5-16 5619 Sonoma Near Green Valley school. 91 Comment
  SD30763  Ambrosia chamissonis Edith A. Purer 1932-7-21 4044 Sonoma Bodega Bay, Sandy bluff Comment
  SEINET5710304  Ambrosia chamissonis Michael Fleschner 1965-1 s.n. Sonoma University of California Marine Biology Laboratory, Bodega Bay.; Bodega Bay Comment
  RSA29215  Ambrosia chamissonis var. chamissonis E. K. Balls 1953-10-9 18595 Sonoma South end of Doran Park, Bodega Bay, Hwy 1 3 Comment
  UC891354  Ambrosia psilostachya Milo S. Baker 1932-1-1 6025 Sonoma 3 mi s, towards Napa Sonoma Comment
  RSA301113  Amelanchier pallida D. C. Michener 1982-7-26 4120 Sonoma Graton road 3.1 miles W of RR xing in Graton, 2.7 miles E of jct with Bohemian Hwy. Comment
  UC58118  Amelanchier utahensis A. A. Heller 1903-4-24 6617 Sonoma woods near Cazadero Comment
  CAS-BOT-BC135663  Amelanchier utahensis Robert Owen 1928-5-1 s.n. Sonoma Rio Nido Comment
  CAS-BOT-BC154122  Ammannia coccinea Peter Rubtzoff 1958-9-27 4005 Sonoma Laguna de Santa Rosa, northwest of Graton (0.5 mi. N of Guerneville Road.) Comment
  CAS-BOT-BC137885  Ammophila arenaria John H. Thomas 1976-6-17 18349 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma county, about 4 miles south of Gualala. Comment
  CAS-BOT-BC180632  Amorpha californica var. californica M. K. Curran 1886-6-6 s.n. Sonoma Duncan's Mills Comment
  POM252870  Amorpha californica var. napensis A. A. Heller 1902-6-24 s.n. Sonoma Near Burke's Sanitarium Comment
  UC13282  Amorpha californica var. napensis Joseph Burtt Davy and Walter C. Blasdale 1899-7-22 6007 B Sonoma Austin Creek Comment
  UC486489  Amsinckia intermedia H. E. and S. T. Parks 1930-5-9 609 Sonoma Knights Valley Comment
  SD60233  Amsinckia spectabilis Roxana S. Ferris 1932-5-27 8257 Sonoma Bodega Bay, Comment
  CDA36951  Anagallis arvensis 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
  UC36576  Ancistrocarphus filagineus Edw. L. Greene 1892-4-30 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC221435  Angelica hendersonii David D. Keck; J. Clausen 1935-6-15 3373 Sonoma 1 mile north of Salmon Creek Comment
  UCD126249  Angelica tomentosa Frederica Bowcutt 1997-7-20 2204 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood, 1 air mile S of Red Mountain. Edge of service roade just SW of group campground. Adobe Canyon near trailhead to Meadows Trail. 396 Comment
  CAS-BOT-BC271439  Anisocarpus madioides Peter Rubtzoff 1954-6-5 1454 Sonoma Hills south of Guerneville, Neeley Hill area Comment
  CAS-BOT-BC271441  Anisocarpus madioides Mary P. Wells 1981-4-18 s.n. Sonoma Near So. Fork Gualala R., the Sea Ranch Comment
  CAS-BOT-BC137770  Anthoxanthum aristatum Alice Eastwood; John Thomas Howell 1936-5-19 2506 Sonoma 2 miles north of Windsor. Comment
  RSA47825  Anthriscus caucalis L. Beane, L. James 1949-5-11 1985 Sonoma 3 miles east of Hopland Comment
  JEPS82255  Antirrhinum vexillocalyculatum subsp. breweri Roger Raiche 1983-8-6 30583 Sonoma headwaters (creek has no name) of Austin Creek (the Cedars) 457 Comment
  JEPS78899  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Edward Lee 1936-6-8 2212 Sonoma Bohemian Grove; Trail 3A (North Ridge to Smith Creek) Comment
  UC26380  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum J. Burtt Davy 1894-12-9 867 Sonoma Kenwood Comment
  CAS-BOT-BC248905  Antirrhinum virga R. D. Stone; G. Clifton 1983-6-16 556 Sonoma At intersection of Burma (Kingcaid) Rd. and Big Sulphur Creek Rd., upper Big Sulphur Cr. drainage, ca. 3.0 mi. due S of summit Cobb Mt. 822 Comment
  CDA36839  Aphanes occidentalis CDFA Staff s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  CAS-BOT-BC361282  Apiastrum angustifolium Greg de Nevers 1997-4-16 10934 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  CAS-BOT-BC17341  Arabis blepharophylla Roxana S. Ferris; D. H. Morey 1958-4-10 13335 Sonoma Summit of Bodega Head. Comment
  CHSC69210  Arctostaphylos James D. Jokerst 1989-4-14 3096 Sonoma Healdsburg Area A Specific Plan Study, outside project area. Comment
  UC526220  Arctostaphylos John Thomas Howell 1931-3-14 5773 Sonoma Vine Hill District 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-BC24084  Arctostaphylos bakeri B. A. Stein 1981-3-7 447 Sonoma Harrison Grade Rd. c. 1/2 mi. east of Stoez Rd. 243 Comment
  CAS-BOT-BC24087  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10954 Sonoma 2 miles east of Occidental Comment
  UC549713  Arctostaphylos bakeri J. E. Adams 1935-3-1 1029 Sonoma 2 mi w Occidental Comment
  RSA107837  Arctostaphylos bakeri subsp. bakeri L. S. Rose 1955-3-21 55031 Sonoma 2 mi NE of Occidental 213 Comment
  RSA139995  Arctostaphylos bakeri subsp. bakeri A. E. Wieslander 1936-9-19 707 Sonoma 1 mile northwest of Occidental 213 Comment
  RSA164630  Arctostaphylos bakeri subsp. bakeri Percy C. Everett 1963-11-21 24566 Sonoma Harrison Grade, northeast of Occidental. 76 Comment
  RSA622706  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24696 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA622707  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24695 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  SDSU1487  Arctostaphylos bakeri subsp. bakeri D. F. Howe 1969-6-8 4635 Sonoma 3.8 miles east of Occidental. 274 Comment
  RSA252145  Arctostaphylos bakeri subsp. bakeri G. D. Wallace 1974-12-23 1348 Sonoma NE of Occidental on Grafton Road, 2 mile or so from Occidental. 152 Comment
  RSA622716  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24764 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622717  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24762 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622726  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24763 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UCD162183  Arctostaphylos canescens D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2014-3-23 1521 Sonoma Hooker Creek watershed. 520 Comment
  UCSB24459  Arctostaphylos canescens McMinn, Howard 1936-4-4 Sonoma Ridge near R. L. Stevenson Monument, Mt. St. Helena Comment
  CAS-BOT-BC23970  Arctostaphylos canescens subsp. canescens Mrs. H. C. Cantelow 1940-4-6 3781 Sonoma On Triniti road w. of Boyes Spring Comment
  CAS-BOT-BC23975  Arctostaphylos canescens subsp. canescens John Thomas Howell 1934-3-3 11747 Sonoma Between Fort Ross and Stwearts Point Comment
  POM367248  Arctostaphylos canescens subsp. sonomensis L. S. Rose 1948-1-17 48002 Sonoma Rincon Ridge, east of Sonoma. 152 Comment
  UC549697  Arctostaphylos columbiana J. E. Adams 1935-3-28 734 Sonoma seven mi n Fort Ross Comment
  CAS-BOT-BC24976  Arctostaphylos densiflora Walter Knight; Irja Knight 1980-12-23 3856 Sonoma In a ditch along Vine Hill Road across from McConnell's place. Comment
  CAS-BOT-BC24993  Arctostaphylos densiflora Milo S. Baker 1928-4-18 5045 -G Sonoma Near Vine Hill Schoolhouse. Comment
  CAS-BOT-BC24996  Arctostaphylos densiflora J. Clausen 1933-3-26 743 Sonoma Vine Hill Schoolhouse, 10 mi. W of Santa Rosa, along road. Comment
  LA42171  Arctostaphylos densiflora E. B. Copeland; 1933-3-18 A 5 Sonoma near Vine Hill School House Comment
  UC1120151  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 829 Sonoma Vine Hill Sebastapol Quadrangle Comment
  UC1120153  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 831 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC726208  Arctostaphylos densiflora A. A. Heller 1941-3-2 15881 Sonoma roadside banks just w Vine Hill Schoolhouse (about 9 mi w of Santa Rosa) Comment
  UCD50797  Arctostaphylos densiflora Roman Gankin 1966-3-3 693 Sonoma Vine Hill School Road, ca. 10 miles west of Santa Rosa. Comment
  UCD50800  Arctostaphylos densiflora Roman Gankin 1966-3-3 693 Sonoma Vine Hill School Road, ca. 10 miles west of Santa Rosa. Comment
  UCD50801  Arctostaphylos densiflora Charles B. Heiser Jr. 1946-5-19 1745 Sonoma Vine Hill, W of Santa Rosa Comment
  UCD50802  Arctostaphylos densiflora Roman Gankin 1957-11-1 247 Sonoma Vine Hill School Road, 0.1 mile east of juncture with Vine Hill Road. Comment
  RSA339412  Arctostaphylos hispidula Walter Knight, Irja Knight, Stephen W. Edwards 1985-1-27 5174 Sonoma about 100 yards west of road. At the upper side of a ravine. 7.7 miles from west end of Sonoma Lake bridge on Rockpile Rd. Comment
  UCD50864  Arctostaphylos hispidula Roger Raiche 1984-2-26 RR 40044 Sonoma ca. 9.1 miles north of origin of Skaggs Springs-Stewarts Point Road on Rockpile Road. 502 Comment
  OBI14676  Arctostaphylos hispidula B. F. Smith 1962-8-3 28 Sonoma 3.5 mi NNW of Occidental 158 Comment
  SEINET11993340  Arctostaphylos hispidula Unknown 1984-1 40028 Sonoma Kelly Road NW of Mt. Tom (5.3 mi NW from its origin at Rockpile Rd) 533 Comment
  CAS-BOT-BC24406  Arctostaphylos manzanita Roger Raiche; Steve Edwards; Walter Knight; Irja Knight 1983-7-3 4753 Sonoma Populations samples from n. end of study area. The Cedars, near Cazadero. 274 Comment
  RSA633057  Arctostaphylos manzanita Jon E. Keeley 1996-6-22 27492 Sonoma Highway 116 west of intersection with Occidental Road, west of Sabastopol. 75 Comment
  UC1614286  Arctostaphylos manzanita Charles M. Belshaw 1936-3-7 1560 Sonoma 1/4 mi w of Trenton Comment
  CAS-BOT-BC24403  Arctostaphylos manzanita Walter Knight; Irja Knight; Roger Raiche; Steve Edwards 1983-7-3 4758 Sonoma Parker Hill Road, Santa Rosa. 182 Comment
  CAS-BOT-BC38990  Arctostaphylos manzanita Roger Raiche 1983-7-10 30489 Sonoma Ridge is eastern end of Rocky Mt. Ridge west of Blue Rock between Gray Creek to the south and Devil Creek to the north. 304 Comment
  RSA633056  Arctostaphylos manzanita Jon E. Keeley 1996-6-22 27490 Sonoma Stewarts Road ca. 3 km west of Forestville. 120 Comment
Read comments
Feb 21 2013
  SEINET11990958  Arctostaphylos manzanita Unknown 1983-1 30499 A Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11991026  Arctostaphylos manzanita W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4753 Sonoma The Cedars, near Cazadero 274 Comment
  CAS-BOT-BC38910  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1923-5-9 11764 Sonoma Mt. St. Helena Comment
  UC674748  Arctostaphylos manzanita subsp. elegans E. A. Goldman 1907-12-29 71 Sonoma Mt. St. Helena 1219 Comment
  CAS-BOT-BC38679  Arctostaphylos manzanita subsp. manzanita Steve Edwards; Roger Raiche; Walter Knight; Irja Knight 1983-7-3 4752 Sonoma The Cedars, near Cazadero 274 Comment
  CAS-BOT-BC38684  Arctostaphylos manzanita subsp. manzanita Roman Gankin 1957-11-1 248 Sonoma Vine Hill Shcool Road, .1 mile east of junction with Vine Hill road, ca. 10 miles west of Santa Rosa Comment
  CAS-BOT-BC38687  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-3-14 5762 Sonoma Rincon Ridge near Santa Rosa Comment
  CAS-BOT-BC38699  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 14 Sonoma Vine Hill region on College Avenue Highway, west of Santa Rosa Comment
  CAS-BOT-BC38711  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 9 Sonoma Residence of M. S. Batker, at west base of Mt. Hood. Comment
  CHSC83180  Arctostaphylos manzanita subsp. manzanita Christine Lee 1993-4-24 97 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. South of Sonoma Creek along Hillside Trail. 396 Comment
  UC1193143  Arctostaphylos manzanita subsp. manzanita G. W. Tourtillott 1950-5-5 15 Sonoma 1/2 mi e Hale Ranch; Quad 60B3, Sulphur Creek 243 Comment
  UC726694  Arctostaphylos manzanita subsp. manzanita A. A. Heller 1941-6-4 16161 Sonoma on the Gurneville Road about 2 mi n Graton Comment
  CAS-BOT-BC38692  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1964-2-16 805 Sonoma Sonoma Mt. Rod. near Enterprise Rd. Comment
  CAS-BOT-BC45397  Arctostaphylos nummularia Mary P. Wells 1986-1-9 405 B Sonoma Off Pilot's Reach, The Sea Ranch. Comment
  SBBG28819  Arctostaphylos patula H. F. Copeland 1932-3-18 A 4 Sonoma Rincon Ridge, N of Santa Rosa Comment
  UC1409193  Arctostaphylos patula C. W. Tilforth and John Dourley 1973-7-18 909 Sonoma Graton Rd 1 mi e Occidental Comment
  CDA11143  Arctostaphylos stanfordiana G. F. Hrusa, G. L. Stebbins, D. Kelch 1993-11-22 11554 Sonoma North Coast Biodiversity Arena; First (unnamed) tributary of Sulphur Creek, immediately after Geysers Road crosses creek. Adjacent to old homestead (on 7.5' quad). Comment
  RSA636806  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24755 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636807  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24745 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636816  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24747 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636817  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24749 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1614287  Arctostaphylos stanfordiana Charles M. Belshaw 1936-3-7 1559 Sonoma 1/4 mi w of Trenton Comment
  UC549545  Arctostaphylos stanfordiana J. E. Adams 1934-3-10 639 Sonoma Mt. St. Helena Comment
  UC549680  Arctostaphylos stanfordiana J. E. Adams 1935-3-1 1021 Sonoma e Sta. Rosa; Rincon Ridge Comment
  CAS-BOT-BC43878  Arctostaphylos stanfordiana Jacob Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4086 Sonoma at Napa/Sonoma county line in Butts Canyon Comment
  SEINET7267257  Arctostaphylos stanfordiana L. Fallon 1939-1-6 s.n. Sonoma 1 mile north of Santa Rosa Comment
  JEPS95228  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS95236  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS95237  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS73685  Arctostaphylos stanfordiana subsp. stanfordiana L. R. Heckard 1968-2-25 1753 Sonoma along Cavedale Road about 5 mi from its junction with the Sonoma-Kenwood Road (edge of Macnab Cypress area, western slope of Hooker Canyon (head of)); w slope of Hooker Canyon (head of) 548 Comment
  RSA107836  Arctostaphylos stanfordiana subsp. stanfordiana L. S. Rose 1955-3-21 53034 Sonoma Rincon Ridge, 2 mi. NE of Santa Rosa. 152 Comment
  RSA364258  Arctostaphylos stanfordiana subsp. stanfordiana Roger Raiche 1983-9-25 RR- 30733 Sonoma Clipper Mill Bridge, Stewarts Point Road (2.6 miles east on that road from Highway 1). Comment
  SEINET12524556 Image available Arctostaphylos stanfordiana subsp. stanfordiana C. M. Belshaw 1936-1 1565 Sonoma Vine hill. Sebastopol quadrangle. T. 7N. R. 9W. Comment
  RSA339402  Arctostaphylos stanfordiana var. repens Roger Raiche 1985-11-23 50895 Sonoma W side of Dry Cr Valley, Bradford Mt 371 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
  UC909827  Arctostaphylos uva-ursi J. E. Adams 1934-3-28 740 Sonoma s McNamees Store Comment
  UC101569  Arctostaphylos viscida subsp. pulchella Alice Eastwood 1900-2-22 Sonoma Mt. St. Helena Comment
  JEPS21819  Arctostaphylos viscida subsp. viscida Roy Ramberg 1958-4-5 Sonoma one-half mi from end of Alta Vista Road; Santa Rosa, Montecito 91 Comment
  UC1388344  Arctostaphylos viscida subsp. viscida Freed W. Hoffman 1949-6-4 3217 Sonoma summit of ridge between Pine Flat and Big Sulphur Creek; North Coast Ranges 914 Comment
  UCR44918  Arenaria douglasii L. F. LaPre 1986-6-5 s.n. Sonoma Dorr Place, 4 mi up a private road from Mannings Flats in Austin Creek State Recreation Area, 6 mi north of Cazadero on upper Austin Creek 207 Comment
  RSA262356  Armeria maritima subsp. californica Steven Yoder 1969-5-24 29 Sonoma 1 mile N of Bodega Marine Lab. 9 Comment
  CAS-BOT-BC82561  Arnica discoidea Greg de Nevers 1996-6-17 10833 Sonoma CYO camp south of Occidental on Bohemian Hwy. 121 Comment
  UCR255653  Arnica discoidea Greg de Nevers 1997-4-24 10956 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  UCR255670  Arnica discoidea Greg de Nevers 1998-6-15 11285 Sonoma CYO Camp on Bohemian Highway [2136 Bohemian Hwy, Occidental] 99 Comment
  UCD56032  Arrhenatherum elatius David L. Morgan 1956-6-10 s.n. Sonoma 2 miles south of Occidental. On Bohemian Highway. Comment
  CAS-BOT-BC173847  Artemisia Peter Rubtzoff 1951-9-3 731 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC84951  Artemisia californica Wm. Mrs. Matthaie 1964-11-3 s.n. Sonoma Hills about 2 mi. SE of Sonoma. Comment
  CAS-BOT-BC90491  Artemisia douglasiana John Thomas Howell 1926-11-14 2253 Sonoma Two miles east of Santa Rosa Comment
  UCD129280  Artemisia douglasiana Mary M. Hektner 1974-7-24 162 Sonoma roadside at junction of Vantage Road and Breaker Reach; Unit 21 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC400605  Asarum caudatum Peter Rubtzoff 1951-6-17 284 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  SBBG1379  Asarum caudatum H. and M. Dearing 1939-5-15 3381 Sonoma N of Fort Ross Comment
  UC72227  Asarum caudatum Milo S. Baker 1898-4-5 Sonoma Near Stewart's Point Comment
  UCSB40584  Asarum caudatum Takeda, Brian 1978-5-28 Sonoma 20 miles north of Bodega Bay on highway 1 in a small Redwood canyon Comment
  UC449992  Asclepias cordifolia Milo S. Baker 1898-7-12 676 Sonoma Geyser Canyon Comment
  CAS-BOT-BC478540  Asparagus officinalis Peter Rubtzoff 1952-7-20 1318 Sonoma Pitkin Marsh, near Forestville Comment
  UC42606  Aspidotis densa unknown 1893-3-12 Sonoma Sonoma Comment
  CAS-BOT-BC344836  Asteraceae Peter Rubtzoff 1966-8-3 5779 Sonoma Going up Bennett Mountain from Lawndale to Bennett Mountain Lake. Comment
  UC82559  Astragalus clevelandii Edward Lee Greene 1883-8-22 Sonoma n side Mt. St. Helena Comment
  POM143740  Athysanus pusillus Michener, Bioletti 1893-04 s.n. Sonoma Adobe Canyon. Comment
  UCD97497  Atriplex leucophylla P. G. Connors 1991-6-17 162 Sonoma Bodega Marine Laboratory. Comment
  UCR248507  Atriplex prostrata Peter Rubtzoff 1958-9-6 3988 Sonoma Laguna de Santa Rosa, east of Sebastopol 20 Comment
  CAS-BOT-BC145720  Avena fatua David L. Morgan 1956-5-11 s.n. Sonoma 311 Mountain View Ave. Petaluma. Comment
  CDA33712  Azolla filiculoides Patrick Akers 2011-2-22 s.n. Sonoma Sonoma. 2299 Sobre Vista Road 0 Comment
  CAS-BOT-BC154153  Baccharis douglasii Peter Rubtzoff 1974-8-4 7797 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC98647  Baccharis douglasii Peter Rubtzoff 1951-8-4 575 Sonoma Pitkin Marsh, near Forestville - open area between the Upper and the Lower marshes. Comment
  UCR279607  Baccharis glutinosa Peter Rubtzoff 1955-9-10 2130 Sonoma North Coast Ranges, Guerneville Marsh 15 Comment
  CAS-BOT-BC99587  Baccharis pilularis John H. Thomas 1976-6-17 18354 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma County, about 4 miles south of Gualala Coastal bluffs Comment
  CAS-BOT-BC99592  Baccharis pilularis Carl B. Wolf; E. R. Johnson 1934-10-13 6181 Sonoma 2 4/10 mi. no. of mouth of Russian River 60 Comment
  CAS-BOT-BC99599  Baccharis pilularis Walter Knight; Irja Knight 1963-9-29 233 Sonoma On freeway fill 200 yds southbound from Lakeville highway Comment
  POM56589  Baccharis salicifolia Michener, Bioletti 1893-06 s.n. Sonoma Glen Ellen Comment
  CAS-BOT-BC145829  Beckmannia syzigachne A. A. Heller 1902-6-27 5780 Sonoma West of Windsor near Russian River. Comment
  CAS-BOT-BC145840  Beckmannia syzigachne Peter Rubtzoff 1958-7-5 3744 Sonoma Atascaderos Creek Marsh. Comment
  CAS-BOT-BC145846  Beckmannia syzigachne Peter Rubtzoff 1962-6-13 4914 Sonoma Americano Creek area. Just south of Bloomfield. Comment
  JEPS45857  Beckmannia syzigachne Eleanor Armstrong 1932-5-16 156 Sonoma 8 mi w Santa Rosa (near Wright School, swamp) 30 Comment
  SEINET10967575  Beckmannia syzigachne H. P. Bracelin 1930-7-27 Bracelin 20 Sonoma On Redwood slope. One mile north of Fort Ross. Comment
  CAS-BOT-BC106392  Bellis perennis Mildred Parks 1925-7-20 s.n. Sonoma Stewart's Point Comment
  UC1076435  Berberis nervosa Herbert L. Mason 1925-11-26 2495 Sonoma Monte Rio Comment
  UCD164214  Bidens cernua Peter Rubtzoff; Nancy Harrison, Edward Lee, Kenneth Stocking 1979-7-21 9293 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC290551  Bidens frondosa Peter Rubtzoff 1958-9-27 4012 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mi. north of Guerneville Road). 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
  RSA0015635  Bidens frondosa Peter Rubtzoff 1958-8-17 3891 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mi north of Guerneville Road). Comment
  RSA0020350  Bidens frondosa Peter Rubtzoff 1960-9-14 4528 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  JEPS54478  Bidens laevis Rimo Bacigalupi 1967-8-30 9311 Sonoma in central part of upper Pitkin Marsh (just below (s of) confluence of two upper (n) arms, very close to) 45 Comment
  UCR250384  Bidens laevis Peter Rubtzoff 1955-11-27 2170 Sonoma Bodega Head Marsh 2 Comment
  CAS-BOT-BC290575  Bidens laevis Peter Rubtzoff 1962-11-8 5129 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC100252  Blennosperma bakeri Milo S. Baker 1952-4-20 12401 Sonoma Western outskirts of Sonoma, along 5th St. between Bettencourt & McArthur Comment
  JEPS3027  Blennosperma bakeri Milo S. Baker 1952-4-20 12401 Sonoma western outskirts of Sonoma, along 5th st betw. Bellencourt and McArthur Comment
  JEPS35788  Blennosperma bakeri Rimo Bacigalupi, R. Ornduff, L. Heckard 1964-3-25 8929 Sonoma along Hayes St. just s Bettencourt (southern outskirts of town, at type locality); Sonoma 19 Comment
  RSA800149  Blennosperma bakeri Peter Rubtzoff, Nancy Harrison, Walter Lennon 1974-5-11 7391 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  RSA0008303  Blennosperma bakeri Peter H. Raven 1963-4-28 18251 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  RSA6404  Blennosperma nanum Jens Clausen 1933-3-25 729 Sonoma Between Warfield and Ken Wood, along the highway. Comment
  CAS-BOT-BC105961  Blennosperma nanum var. nanum A. A. Heller; H. E. Brown 1902-3-14 s.n. Sonoma Near Windsor Comment
  CAS-BOT-BC154953  Boisduvalia densiflora Peter Rubtzoff 1954-9-6 1739 Sonoma Guerneville Marsh. Comment
  RSA94293  Boisduvalia densiflora var. densiflora Peter Rubtzoff 1951-8-5 600 Sonoma Pitkin Marsh near Forestville, western branch of the Upper Marsh Comment
  CAS-BOT-BC156320  Boisduvalia glabella Peter Rubtzoff 1955-8-6 2026 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC164391  Boisduvalia glabella Peter Rubtzoff 1958-8-31 3959 Sonoma Atascadero Creek Marsh Comment
  RSA791563  Boisduvalia stricta Peter Rubtzoff 1961-6-7 4617 Sonoma Laguna de Santa Rosa, about 1 mi SE of Trenton. Comment
  CAS-BOT-BC28224  Bolboschoenus fluviatilis Peter Rubtzoff 1958-5-11 3656 Sonoma Laguna de Santa Rosa NE of Graton, nr. Guerneville Road. Comment
  CAS-BOT-BC322143  Bolboschoenus maritimus Peter Rubtzoff 1972-8-26 6859 Sonoma Laguna, Chileno Valley. Comment
  UC964743  Boykinia occidentalis R. F. Hoover 1942-7-6 5914 Sonoma canyon s Geysers; canyon s of the Geysers Comment
  CAS-BOT-BC418500  Boykinia occidentalis Lizzie Way 1886-6-1 s.n. Sonoma Mark West Creek Comment
  RSA331975  Boykinia occidentalis Dave Kelly, W. Wisura 1985-7-26 4058 Sonoma Sugarloaf Ridge State Park E of Santa Rosa. Comment
  UCD102603  Boykinia occidentalis Frederica Bowcutt 1994-7-5 1940 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along S edge of Sonoma Creek just upstream from confluence with Bear Creek. Immed. E of Goodspeed Trail Bridge over Sonoma Creek. N of Adobe Canyon Road about 60 ft. 225 Comment
  CAS-BOT-BC145445  Brachypodium distachyon G. DeNevers 1981-5-14 1151 Sonoma Pepperwood Ranch. Small canyon north of Pippindale pond, draw. Comment
  UC571416  Brachypodium pinnatum R. C. Morehouse 1937-8-23 Sonoma Sample plot 1 mi w of Bloomfield (George Jones Property) 30 Comment
  CAS-BOT-BC36618  Brassica nigra Mary P. Wells 1984-5-7 260 Sonoma Santa Rosa. Rincon Valley. Friends House. Comment
  SEINET10480785  Brassica nigra David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-9 Dunn 20710 Sonoma Collected 5.3 mi e of the jct of hwy 101 and hwy 116 on 116. Rolling hills of grasses. Along the roadside in clay banks. Comment
  CHSC91447  Brassica rapa Richard R. Halse 1987-2-22 3374 Sonoma Along State Hwy. 121, .4 miles E of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley. 6 Comment
  HSC6588  Brassica rapa F. Demostene 1966-4-1 9 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC154992  Brassicaceae Peter Rubtzoff 1969-6-22 6100 Sonoma Forest Hills, 5.5 miles east of Guerneville, at 9981 Old River Road Comment
  CAS-BOT-BC182743  Brassicaceae Peter Rubtzoff 1969-8-29 6169 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC376281  Brickellia californica Greg de Nevers 1992-6-26 10189 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  RSA604102  Briza maxima C. Wistrom 1996-5-26 35 Sonoma Healdsburg, 6101 Dry Creek Road 49 Comment
  SEINET5717720 Image available Briza maxima Anthony Tin Yan Tse 1972-1 3 -4 Sonoma 2 miles south of Jenner of Highway 1, Sonoma County, California.; Jenner Comment
  CAS-BOT-BC145302  Briza minor Alice Eastwood 1921-4-24 10373 Sonoma Santa Rosa. Comment
  POM204032  Briza minor J. T. Howell 1934-3-25 367 Sonoma Petaluma Comment
  CAS-BOT-BC376235  Brodiaea californica subsp. leptandra Greg de Nevers 1992-6-26 10180 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  SEINET12049904  Brodiaea californica subsp. leptandra Unknown 1985-1 50553 Sonoma W side of Dry Cr. Valley, W of town of Dry Creek, unnamed ridge N of Crane Creek & S of Bradford Mt. 162 Comment
  CAS-BOT-BC123412  Brodiaea californica var. leptandra Amos Arthur Heller 1902-6-23 5742 Sonoma Petrified Forest Comment
  CAS-BOT-BC132209  Brodiaea californica var. leptandra Milo S. Baker 1925-1-1 234 local Sonoma Adobe [Canon] Canyon above Kenwood Sps. Comment
  UCD150146  Brodiaea coronaria Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain. NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds. Sampling pool #1. 43 Comment
  RSA227221  Brodiaea elegans subsp. elegans Peter Rubtzoff 1969-6-15 6087 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  SEINET5500783 Image available Brodiaea laxa Sally Walker 1981-5-25 Sonoma 4 mi W of Occidental. Comment
  JEPS74720  Brodiaea leptandra W. L. Jepson 1923-6-28 10006 Sonoma Kenwood Sonoma Canyon 243 Comment
  CAS-BOT-BC486501  Brodiaea stellaris Milo S. Baker 1926-4-1 2086 Sonoma Graton-Occidental Road Comment
  CHSC22978  Brodiaea terrestris Robert A. Schlising; Lloy Thurman 1962-6-15 2314 Sonoma Ca. 9 mi N Jct Hwy 1 and Stewarts Point Road. Comment
  UCD139140  Brodiaea terrestris Mary M. Hektner; Cathy Hendel 1974-6-28 82 -A Sonoma Unit 21 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UC1300937  Brodiaea terrestris subsp. terrestris Helen K. Sharsmith 1963-5-25 5474 Sonoma Two Rock to Tomales road (w edge of Sonoma County); San Francisco Region 91 Comment
  CAS-BOT-BC486460  Brodiaea terrestris subsp. terrestris H. C. Cantelow 1938-5-1 3931 Sonoma About 25 mi. N. of Ross Comment
  CAS-BOT-BC486466  Brodiaea terrestris subsp. terrestris Peter Rubtzoff; Rimo Bacigalupi 1971-6-10 6528 Sonoma Bennett Mtn. Lake Comment
  CAS-BOT-BC144149  Bromus Rimo Bacigalupi 1926-5-2 1391 Sonoma Cazadero. Comment
  CAS-BOT-BC144167  Bromus J. W. Congdon 1880-5-1 s.n. Sonoma Petaluma. Comment
  CAS-BOT-BC149090  Bromus carinatus var. carinatus Peter Rubtzoff 1953-5-18 1401 Sonoma South of Guernevile (Neeley Hill area). Comment
  CAS-BOT-BC149096  Bromus carinatus var. carinatus Lewis S. Rose 1962-4-18 62024 Sonoma 1 mile northwest of Freestone. 76 Comment
  CAS-BOT-BC149085  Bromus carinatus var. carinatus David L. Morgan 1961-4-26 s.n. Sonoma Marshall - Petaluma road 2 miles west of junction of Wilson Hill Road. Comment
  SD88313  Bromus commutatus D. F. Howe 1972-5-2 4817 Sonoma Duncan Mills Pond; trail above pond Comment
  CAS-BOT-BC155661  Bromus diandrus G. DeNevers 1981-4-8 672 Sonoma Pepperwood Ranch. Pippindale Farm. Cresta Stable. 3000 Mark West Springs Road. Comment
  CAS-BOT-BC155667  Bromus diandrus John H. Thomas 1966-5-8 11597 Sonoma 1.4 mile west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  JEPS71167  Bromus diandrus Virginia Bufford 1932-9-23 575 Sonoma 4 mi sw of Santa Rosa Comment
  UC1010997  Bromus diandrus Virginia Bufford 1936-5-1 148 Sonoma w of Sebastopol (top of O'Farrell Hill); O'Farrell Hill Comment
  UC903718  Bromus diandrus Milo S. Baker 1947-5-5 11730 Sonoma Hood Mountain, near nw corner of M.S. Baker property, (East Grant line) Hood Mountain Comment
  CAS-BOT-BC155245  Bromus hordeaceus David L. Morgan 1961-5-14 s.n. Sonoma 1 mile east of Cotati on Cotati Avenue. Comment
  UCD58769  Bromus hordeaceus Beecher Crampton 1956-4-24 3309 Sonoma Healdsburg. Prince and Sherman Sts. Comment
  UCD58807  Bromus hordeaceus Collector unknown 1941-3-1 Sonoma Santa Rosa. Doyle Park. Comment
  JEPS45824  Bromus laevipes Eleanor Armstrong 1932-5-19 161 Sonoma 1/4 mi w of Occidental 106 Comment
  SBBG20731  Bromus laevipes M. S. Walters 1960-6-18 Sonoma ca. 1.5 mi E of Russian River bridge at Guerneville on St Hwy 12 Comment
  UCD58888  Bromus laevipes H. S. Yates 1937-5-30 6543 Sonoma 3 miles WNW of Graton. 60 Comment
  UCD36300  Bromus laevipes Beecher Crampton 1953-5-19 1296 Sonoma Sonoma County, 10 miles west of Calistoga, on Highway 128. Comment
  UCD58924  Bromus laevipes B. Crampton 1955-6-8 2826 Sonoma 7 miles northwest of Calistoga. Along State Hwy. 128. Comment
  UCD58929  Bromus laevipes Beecher Crampton 1953-5-19 1296 Sonoma 10 miles west of Calistoga. Hwy. 128. Comment
  CAS-BOT-BC162256  Bromus maritimus Peter H. Raven 1963-4-28 18249 Sonoma Between town of Bodega Bay and Bodega Head. Comment
  SEINET14440067  Bromus orcuttianus J. A. Churchill 1974-5-1 74 3022 Sonoma CAmp Meeker Comment
  UC1010996  Bromus racemosus Virginia Bufford 1936-5-1 168 Sonoma Bodega Canyon, Larkspur Rock Larkspur Rock; Bodega Canyon, Larkspur Rock Comment
  UCD60058  Bromus tectorum R. Tofsrud 1949-6-1 s.n. Sonoma Mark West Creek Road between Mark West Creek Springs and Burks' Resort. Comment
  CDA3587  Cakile maritima H. F. McCracken 1965-8-23 Sonoma Bodega Bay. 0 Comment
  RSA0064342  Calamagrostis Peter Rubtzoff 1967-8-22 5856 Sonoma Hillside depression southeast of lower Salmon Creek Marsh. Comment
  CAS-BOT-BC185401  Calamagrostis bolanderi Mary P. Wells 1985-10-4 665 Sonoma Road to almost-pygmy forest. The Sea Ranch (now property of Travelers Insurance). Comment
  CAS-BOT-BC185404  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Highway 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC185407  Calamagrostis bolanderi John Thomas Howell 1947-6-26 23312 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC185413  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Highway 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC185302  Calamagrostis koelerioides Roxana S. Ferris; Laura Lorraine 1961-6-15 13563 Sonoma Harrison Grade, 1.3 mile from junction with Green Valley Road. Comment
  RSA115463  Calamagrostis ophitidis Beecher Crampton 1957-5-16 s.n. Sonoma Hot Springs Road, 3 miles southwest of Cloverdale Comment
  UC963876  Calamagrostis ophitidis Milo S. Baker 1947-5-30 11772 Sonoma along Harrison Grade ca 2 mi ne Occidental; Nort Bay Counties Comment
  CAS-BOT-BC273248  Calendula arvensis John Thomas Howell 1946-3-31 21591 Sonoma Just east of Sonoma Comment
  CAS-BOT-BC273242  Calendula arvensis W. R. Russell 1967-3-28 s.n. Sonoma At north end of town, Sonoma Comment
  CAS-BOT-BC376223  Callitriche marginata Greg de Nevers 1995-5-20 10729 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In road through Fern Canyon 487 Comment
  CAS-BOT-BC293678  Callitriche trochlearis Peter Rubtzoff 1961-5-24 4607 Sonoma Upper Stemple Creek Marsh. Comment
  UCR249030  Callitriche verna Peter Rubtzoff 1974-4-6 7348 Sonoma Kenwood Marsh 120 Comment
  RSA144397  Calochortus amabilis Roxana S. Ferris, Laura Lorraine 1961-6-15 13551 Sonoma On Harrison Grade Road, 0.3 mi from Junction with Green Valley Road. Comment
  CAS-BOT-BC483279  Calochortus amabilis A. A. Heller; H. E. Brown 1902-4-22 s.n. Sonoma Between Santa Rosa and Agua Caliente Comment
  CAS-BOT-BC483285  Calochortus amabilis D. E. Breedlove 1962-6-6 2895 Sonoma Along State Highway 128, 1.5 miles northwest of U.S. Highway 101 at Cloverdale 121 Comment
  CAS-BOT-BC483290  Calochortus amabilis W. W. Carruth 1901-6-1 s.n. Sonoma Near Seaview Comment
  SD88413  Calochortus amabilis Darley F. Howe 1972-4-25 Sonoma Trinity Road, Mount Hood Range. 121 Comment
  UC423007  Calochortus amabilis H. P. Chandler 1907-4-27 7541 Sonoma St. Helena to Santa Rosa Comment
  JEPS82291  Calochortus raichei Roger Raiche 1983-7-4 30473 Sonoma above Gilliam Creek; Morrison Ridge 243 Comment
  JEPS83742 Image available Calochortus raichei Roger Raiche 1986-7-7 60214 Sonoma n Cazadero (near Laton Mine); The Cedars, headwaters of Big Austin Creek; N of Cazadero, The Cedars, headwaters of Big Austin Creek, near Laton Mine. Sonoma Co. 840 Comment
  NY319591  Calochortus raichei R. Raiche 1986-7-7 60214 Sonoma N of Cazadero, The Cedars, headwaters of Big Austin Creek, near Laton Mine. 840 Comment
  JEPS55638  Calochortus tolmiei Wayne Roderick 1967-5-13 Sonoma ca 1 rd mi n Fort Ross 22 Comment
  CAS-BOT-BC494038  Calochortus tolmiei A. A. Heller 1940-5-10 15612 Sonoma West of Slag's Springs on the Stewart Point road. Comment
  CAS-BOT-BC132638  Calochortus uniflorus Rimo Bacigalupi 1926-3-27 1249 Sonoma Meadow opposite Myrtledale Geyser, 1 1/2 miles north of Calistoga Comment
  UCR265135  Calochortus uniflorus Ann Howald, Christina Freeman 2015-4-13 3340 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, south shore, c. 300 feet north of intersection Pig Flat and Marsh trails 363 Comment
  CAS-BOT-BC270847  Calycadenia pauciflora David D. Keck 1944-7-11 5511 Sonoma The Geysers, Mayacamas Range Comment
  CAS-BOT-BC270841  Calycadenia pauciflora G. DeNevers 1981-6-27 1703 Sonoma Summit of Franz Valley Road Comment
  CAS-BOT-BC270844  Calycadenia pauciflora Gerald D. Carr 1972-3-20 687 Sonoma 1.0 mile W of Westside Road on Mill Creek Road, 2.5 miles SW of Healdsburg 106 Comment
  CAS-BOT-BC91007  Calycanthus occidentalis Mrs. E. C. Sutliffe 1920-7-18 s.n. Sonoma Annapolis. Comment
  CAS-BOT-BC91014  Calycanthus occidentalis L. R. Abrams 1916-7-4 5801 Sonoma Burkes Sanitarium. Comment
  OBI49312  Calycanthus occidentalis Michener & Bioletti, Bioletti Jun 1893 s.n. Sonoma Hoods Peak Comment
  UC400137  Calycanthus occidentalis Ynes Mexia 1929-6-2 2397 Sonoma near Santa Rosa Comment
  CAS-BOT-BC91017  Calycanthus occidentalis W. W. Carruth 1899-7-1 s.n. Sonoma Russian River. Comment
  JEPS29352  Calypso bulbosa Wayne Roderick 1963-3-2 Sonoma 3 mi nw of Occidental (on Willow Creek Road); Willow Creek Road 304 Comment
  UC1140871  Calypso bulbosa R. M. and A. Tryon 1958-3-9 Sonoma 1 mi w of Cazadero (on road to Fort Ross) Comment
  UC494235  Calypso bulbosa Anna E. Ehlers April 1920 532 Sonoma Cascadero, (4 mi in redwoods) Cascadero 487 Comment
  UCR45086  Calyptridium quadripetalum L. F. LaPre 1986-5-31 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  CAS-BOT-BC376265  Calystegia occidentalis Greg de Nevers 1995-6-3 10744 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along road below Double Ponds 487 Comment
  JEPS78953  Calystegia purpurata subsp. saxicola Edward Lee with Annetta Carter 1936-6-21 2245 Sonoma on Bodega-Bodega Bay Road 2.2 mi from Bodega Bay Bodega Bay; 2.2 mi from Bodega Bay Comment
  UC879438  Calystegia purpurata subsp. saxicola Alice Eastwood 1917-5-13 Sonoma Bodega Bay Comment
  UCD126166  Calystegia soldanella Mary M. Hektner; Cathy Hendel 1974-7-25 168 Sonoma north of Galleon's Reach, Unit 7 Owner's Map, Sea Ranch, near State Highway 1. Comment
  JEPS18142  Calystegia subacaulis Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-30 5664 Sonoma Along and just above creek-bed, headwaters of Big Austin Creek, vicinity of The Cedars, near Layton Chromite Mine. 266 Comment
  CAS-BOT-BC497687  Camassia quamash Greg de Nevers 1996-4-18 10790 Sonoma Knights Valley, marsh at south end of valley at base of hills, on Bavarian Lion Ranch 137 Comment
  SEINET3885514  Camassia quamash Keller, McDowell 1940-5-15 s.n. Sonoma Bennett Mountain. Mer. Boise.; 0 1219 Comment
  UCR255884  Camassia quamash subsp. quamash Greg de Nevers 1996-4-18 10790 Sonoma North Coast Range, Knights Valley Marsh, on Bavarian Lion Ranch 137 Comment
  JEPS81953  Campanula californica Rimo Bacigalupi 1967-8-30 9312 Sonoma se of Forestville (near e end of Templeman Road); Pitkin Marsh 45 Comment
  UC657708  Campanula californica Milo S. Baker 1941-8-4 10165 Sonoma Coast Hwy between Ft. Ross and Stewart's Point Comment
  HSC86665  Campanula californica R. W. Becking 1988-8-12 Sonoma Seaside Estate Meadow area W of Hwy. 1 Comment
  SEINET10463913  Campanula californica Baker 1928-6-28 Baker 30466 Sonoma Pitkin Marsh. Comment
  JEPS128212  Campanula griffinii Roger Raiche 2003-5-24 016 .03 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET10873281  Campanula prenanthoides Rattan 1877-1 RATTAN s.n. Sonoma GUERNEVILLE Comment
  SEINET10905924  Campanula prenanthoides Rattan 1877-6-25 RATTAN s.n. Sonoma Cloverdale Comment
  CAS-BOT-BC37195  Capsella bursa-pastoris Walter Knight; Irja Knight 1963-10-6 490 Sonoma Petaluma. Jess Street. Comment
  CAS-BOT-BC37768  Cardamine californica J. Clausen 1933-3-25 728 Sonoma About 4 miles east of Warfields on road to Oakville. 213 Comment
  UCD114191  Cardamine californica G. F. Hrusa; R. Gross 1996-3-8 12657 Sonoma on N-facing slope above lower Foote Creek. Foote Ranch at corner of Ida Clayton Road and Highway 128. 200 Comment
  JEPS53387  Cardamine californica var. integrifolia Milo S. Baker April 1899 Sonoma hill back Dillon's Beach; hills back of Dillon's Beach Comment
  CDA16135  Cardamine hirsuta G. F. Hrusa 1999-2-26 14925 Sonoma North Coast Ranges; Foote Ranch, NW base of Mt. St. Helena, near corner of Hwy 128 and Ida Clayton Rd. 152 Comment
  CAS-BOT-BC38027  Cardamine oligosperma Peter Rubtzoff 1955-5-14 1852 Sonoma Duncans Mills Marsh. In upper portion of marsh. Comment
  CAS-BOT-BC281764  Carduus pycnocephalus John Thomas Howell; Catherine Best; Gordon H. True 1982-5-6 54683 Sonoma Bouverie Audubon Preserve, about 1.5 miles E of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC281767  Carduus pycnocephalus Peter Rubtzoff 1951-7-21 480 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh, near the highway Comment
  SEINET5713022  Carduus pycnocephalus Peta Lewis 1967-1 13 Sonoma Ca. 2 miles east on River Road, 3 miles north of Guerneville.; Guerneville 23 Comment
  UCD159445  Carduus pycnocephalus subsp. pycnocephalus D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 202 Sonoma Near Sonoma state beach hiking trail. Abundant. 40 Comment
  UCD129926  Carduus tenuiflorus Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1771 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trailhead along Adobe Canyon Road S of Sonoma Creek. 198 Comment
  UCR255708  Carex abrupta Peter Rubtzoff 1957-5-4 3307 Sonoma Duncan Mills Marsh 2 Comment
  CAS-BOT-BC334525  Carex abrupta Peter Rubtzoff 1958-5-17 3658 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC344827  Carex abrupta Peter Rubtzoff 1960-5-20 4394 Sonoma Laguna de Santa Rosa east of Graton, between Occidentalis and Guerneville roads. Comment
  CAS-BOT-BC344830  Carex abrupta Peter Rubtzoff 1962-7-14 s.n. Sonoma Lower Salmon Creek Marsh Comment
  RSA0021493  Carex amplifolia Peter Rubtzoff 1975-7-12 8199 Sonoma Jordan Oark, 1.7 miles northwest of Cobb. Along Kelsey Creek Comment
  CAS-BOT-BC18138  Carex athrostachya Peter Rubtzoff 1954-7-4 1532 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC18140  Carex athrostachya Peter Rubtzoff 1958-5-3 3611 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC18145  Carex athrostachya Peter Rubtzoff 1959-5-30 4055 Sonoma Freestone Marsh. Comment
  UCR208535  Carex athrostachya Peter Rubtzoff 1960-5-15 4325 Sonoma Fife Creek Marsh [near Guerneville] Comment
  UCR248933  Carex athrostachya Peter Rubtzoff, Nancy Harrison 1974-7-13 7681 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC19363  Carex barbarae John Thomas Howell; J. W. Stacey 1937-6-6 13022 Sonoma Sebastopol. Comment
  CAS-BOT-BC19366  Carex barbarae J. W. Congdon 1880-5-17 s.n. Sonoma Sebastopol. Comment
  CAS-BOT-BC290554  Carex barbarae Peter Rubtzoff 1975-7-3 8152 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC329309  Carex barbarae Peter Rubtzoff 1974-6-2 7524 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC371452  Carex barbarae Peter Rubtzoff 1953-5-16 1360 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  RSA122799  Carex barbarae H. S. Yates 1936-5-16 5584 Sonoma 1 mile northeast of Graton. 30 Comment
  UCR137670  Carex barbarae Don Pendleton 1993-5-29 s.n. Sonoma North Coast Ranges, 5297 Westside Rd, Russian River Valley, c. 5 mi SW of Healdsburg 46 Comment
  UCR248934  Carex barbarae Peter Rubtzoff 1976-5-30 8577 Sonoma North Coast Range, Kenwood Marsh 120 Comment
  CAS-BOT-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
  JEPS116508  Carex californica Peter Warner 2009-6-9 107 Sonoma Salt Point State Park, main trail to pygmy forest from Woodside Campground, approx. 1.3 mi E of Hwy 1, approx. 0.25 mi ESE of water tanks, along trail edge 200 Comment
  CAS-BOT-BC350934  Carex cusickii Peter Rubtzoff 1955-5-14 1839 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC20481  Carex densa John Thomas Howell 1930-6-8 5235 Sonoma 3 miles east of Valley Ford. Comment
  CAS-BOT-BC20506  Carex densa Peter Rubtzoff 1960-5-15 4323 Sonoma Sonoma County Marshes. Fife Creek Marsh. Comment
  CAS-BOT-BC242637  Carex densa Peter Rubtzoff 1958-4-26 3603 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC246555  Carex densa Peter Rubtzoff 1958-5-3 3621 Sonoma Atascadero Creek Marsh Comment
  UC1133352  Carex densa H. S. Yates 1936-5-16 5583 Sonoma 1 mi NE of Graton 30 Comment
  UC934  Carex densa H. N. Bolander Apr 1864 3871 Sonoma Russian River Comment
  UC935  Carex densa H. N. Bolander April 1864 3824 Sonoma at Cloverdale Cloverdale; Cloverdale, Sonoma Co. Comment
  UCD151306  Carex densa James A. Neilson Jr. 1974-8-19 2852 Sonoma Mayacmas Mountains. Little Geysers. (Elevation estimated by label-maker using topo map.) 731 Comment
  CAS-BOT-BC20242  Carex densa Peter Rubtzoff 1968-6-25 5901 Sonoma Lichau Marsh. Comment
  CAS-BOT-BC20503  Carex densa Peter Rubtzoff 1962-5-30 4853 Sonoma Sonoma County Marshes. Upper Freestone Marsh. Comment
  RSA0015631  Carex exsiccata Peter Rubtzoff 1958-5-17 3668 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Rd). Comment
  CAS-BOT-BC20452  Carex globosa John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54676 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek. 137 Comment
  CAS-BOT-BC20445  Carex globosa G. DeNevers 1981-4-4 661 Sonoma Pepperwood Ranch. High in 1st Canyon S of Pepperwood-Pippindale Gate on W side of Creek. Comment
  CAS-BOT-BC28326  Carex gracilior John Thomas Howell 1947-6-5 23241 Sonoma Cunningham Marsh. Comment
  UC8079  Carex gracilior H. N. Bolander 1866-4 4635 Sonoma Petaluma Comment
  CAS-BOT-BC28332  Carex gracilior Henry Nicholas Bolander 1864-4-1 3822 a Sonoma Meadow at Cloverdale. Comment
  SEINET7560150 Image available Carex gracilior Alice Eastwood, John Thomas Howell 1936-5-19 2499 Sonoma North limits of Santa Rosa. Comment
  CAS-BOT-BC320572  Carex harfordii Peter Rubtzoff 1964-5-20 5320 Sonoma Bodega Bay Marsh. Comment
  RSA0023073  Carex hassei Peter Rubtzoff 1962-5-11 4819 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC419698  Carex hendersonii Peter Rubtzoff 1960-5-16 4360 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC31174  Carex lemmonii John Thomas Howell; J. W. Stacey 1936-7-26 12681 Sonoma Pitkin Marsh. 5 mi N of Sebastopol. Comment
  CAS-BOT-BC31177  Carex lemmonii Peter Rubtzoff 1951-6-7 140 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UCD140480  Carex leporina Frederica Bowcutt 1994-5-1 1782 a Sonoma Sugarloaf Ridge State Park. About 50 air miles north of San Francisco. About 10 air miles east of Santa Rosa. About 2.5 air miles north of Kenwood. About 18 air miles northwest of Napa. Campground, south of Sonoma Creek about 150 yards, 1/4 miles NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. Comment
  RSA0034190  Carex leptopoda Peter Rubtzoff 1960-6-7 4459 Sonoma Austin Creek Marsh. Comment
  UCR249078  Carex leptopoda Peter Rubtzoff 1964-5-20 5323 Sonoma Bodega Bay Marsh 15 Comment
  CAS-BOT-BC422366  Carex nudata Peter Rubtzoff 1962-5-6 4811 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. 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
  CAS-BOT-BC119280  Carex ovalis Peter Rubtzoff 1951-7-7 378 Sonoma Pitkin Marsh, near Forestville. Eastern Branch of the Upper Marsh. Comment
  CAS-BOT-BC119286  Carex ovalis John Thomas Howell; J. W. Stacey 1937-6-6 13038 Sonoma Pitkin Marsh. Comment
  RSA52171  Carex praegracilis J. T. Howell 1947-6-26 23295 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC422360  Carex serratodens Peter Rubtzoff 1974-6-9 7586 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC117675  Carex serratodens Gregory Clark de Nevers 1982-2-27 1922 Sonoma Pepperwood Ranch, near the barn at Pepperwood. Comment
  RSA0023000  Carex serratodens Peter Rubtzoff 1974-6-9 7586 Sonoma Upper Green Valley Marsh. Comment
  RSA0020333  Carex stipata Peter Rubtzoff 1960-5-22 4410 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville Roads.) Comment
  RSA90862  Carex stipata J. W. Stacey 1937-6-6 13021 Sonoma Sebastopol. Comment
  CAS-BOT-BC249294  Carex subbracteata Peter Rubtzoff 1959-6-13 4124 Sonoma Willow Creek Marsh Comment
  SEINET10847110  Carex subbracteata Lewis S. Rose 1939-5-14 Rose 39116 Sonoma Bodega. Wet fields. 30 Comment
  CAS-BOT-BC115829  Carex subfusca John Thomas Howell 1947-6-5 23241 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC350937  Carex tumulicola Peter Rubtzoff 1959-5-31 4076 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC115530  Carex tumulicola Alice Eastwood; John Thomas Howell 1936-5-19 2500 B Sonoma Fulton Comment
  UC589968  Carex vesicaria var. major H. S. Yates 1936-5-17 5632 Sonoma 2 mi ne Graton; Sebastopol Quadrangle 30 Comment
  JEPS23563  Carthamus lanatus Peter H. Raven, R. Snow 1958-7-23 13684 Sonoma 15.5 mi w of Skaggs Springs (near farm above Wolf Creek, along road to Stewarts Point); Wolf Creek, Stewarts Point Comment
  CAS-BOT-BC281920  Carthamus lanatus Greg de Nevers 1992-7-22 10223 Sonoma Sonoma Mountain, Lichau Rd, Fairfield-Osborn Preserve 243 Comment
  OBI68597  Carthamus leucocaulos T. C. Fuller 1978-8-17 20253 Sonoma along the inner face of dam at edge of water cutting action, 1.6 km (1mi) W of fwy exit, hwy 101, Asti Comment
  CAS-BOT-BC249236  Castilleja affinis Milo S. Baker 1924-4-27 102 Local-'24 Sonoma Road to Coopers Grove Comment
  UC726108  Castilleja ambigua subsp. ambigua A. A. Heller 1940-6-12 15722 Sonoma w of Two Rocks Comment
  UCD122118  Castilleja ambigua subsp. ambigua Mary M. Hektner; Cathy Hendel and Sue Dakuzaku 1974-6-19 35 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC27170  Castilleja densiflora subsp. densiflora Harley P. Chandler 1900-5-25 706 Sonoma Bodega Bay Comment
  RSA177902  Castilleja foliolosa Robert F. Thorne 1965-4-20 34357 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 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
  RSA523434  Castilleja franciscana L. R. Heckard 1964-6-12 1385 Sonoma South side of Russian River, just across bridge on state highway 1. Comment
  SEINET12337432  Castilleja franciscana Unknown 1986-1 60158 Sonoma W of Healdsburg, Palmer Creek drainage (tributary of Mill Creek) 366 Comment
  CAS-BOT-BC243855  Castilleja latifolia Alice Eastwood 1915-6-29 4835 Sonoma Bodega Point Comment
  JEPS35569  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-6-12 1385 Sonoma s side Russian River (just across bridge on State Highway 1) Comment
  CAS-BOT-BC241090  Castilleja uliginosa Hans Leschke 1945-5-30 s.n. Sonoma Pitkin Marsh Comment
  JEPS35564  Castilleja wightii L. R. Heckard 1964-6-12 1390 Sonoma about 1 mi s Bodega Bay (town) (beach between highway and Bodega Bay) Comment
  JEPS35572  Castilleja wightii L. R. Heckard 1964-6-12 1382 Sonoma about 2 mi n Stewarts Point (along Calif Hwy 1) Comment
  JEPS60456  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-30 6695 Sonoma Timber Cove; on Highway 1 Comment
  JEPS60457  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-30 6696 Sonoma about 1 mi s Stewart's Point Comment
  JEPS85724  Castilleja wightii L. R. Heckard 1968-7-23 2070 Sonoma n of Bodege Bay; Schoolhouse Beach Comment
  POM180613  Castilleja wightii J. T. Howell 1930-6-8 5281 Sonoma 8.5 miles north of Bodega Bay. Comment
  UCSB5988  Castilleja wightii Keator, Glenn 1958-6-17 Sonoma Near the northern end of Tomales Bay Comment
  CAS-BOT-BC366948  Caulanthus lasiophyllus Greg de Nevers 1997-4-16 10945 Sonoma Moon Mountain Road Area burned Sept. 1996 Comment
  CAS-BOT-BC47800  Ceanothus John Thomas Howell 1937-4-11 12899 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC47805  Ceanothus James McMurphy 1909-5-29 s.n. Sonoma ridge south of the Geysers Comment
  UC70418  Ceanothus Milo S. Baker May 1899 Sonoma near Occidental Comment
  CAS-BOT-BC48508  Ceanothus confusus Walter Knight 1963-4-28 s.n. Sonoma Head of Adobe Canyon, south part of Hoods Peak Comment
  CAS-BOT-BC48522  Ceanothus confusus J. Clausen 1933-3-26 739 Sonoma Rincon Range east of Santa Rosa Comment
  SBBG4133  Ceanothus confusus M. Van Rensselaer 1941-4-27 1639 Sonoma Montecito Rd, Rincon Ridge Comment
  UC480609  Ceanothus confusus Carl Meyer 1928-3-3 306 Sonoma Santa Rosa Comment
  RSA0005481  Ceanothus confusus J. T. Howell 1937-4-11 12897 Sonoma Rincon Ridge northeast of Santa Rosa. Comment
  CAS-BOT-BC49151  Ceanothus cuneatus John Thomas Howell 1931-3-14 5766 Sonoma River Ridge near Santa Rosa Comment
  CAS-BOT-BC49197  Ceanothus cuneatus Walter Knight; Irja Knight 1963-12-27 477 Sonoma Summit, Pine Flat Rd. Comment
  RSA339398  Ceanothus cuneatus Roger Raiche 1985-4-6 50182 Sonoma Dry Creek area near Healdsburg, ridge W of Dry Creek Valley, unamed road N of Dorman Canyon on ridge. 244 Comment
  SBBG27271  Ceanothus divergens subsp. confusus J. T. Howell 1937-4-11 Sonoma Rincon Ridge, NE of Santa Rosa Comment
  CAS-BOT-BC64424  Ceanothus foliosus Walter Knight; Irja Knight 1963-8-23 191 Sonoma Josh Ranch, Calistoga Rd. Comment
  UC1070626  Ceanothus foliosus R. W. Lundh 1932-6-19 109 Sonoma 1 mi nw Los Alamos School; Santa Rosa quad. 579 Comment
  SEINET11191419  Ceanothus foliosus subsp. foliosus C. L. Schmidt 1987-2-27 1135 Sonoma 4 miles up Cavedale from CA-12, Hooker Canyon. 500 Comment
  CAS-BOT-BC49900  Ceanothus foliosus var. foliosus Greg de Nevers; Frank Almeda 1987-4-11 8133 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC49905  Ceanothus foliosus var. foliosus Walter Knight; Irja Knight 1963-8-23 189 Sonoma Joost Ranch, Calistoga Rd. Comment
  RSA300966  Ceanothus foliosus var. vineatus D. C. Michener 1982-7-26 4118 Sonoma Vine Hill School road, 100' west of Vine Hill school, lot west of residence 6096; north road bank between vineyard and road Comment
  OBI10528  Ceanothus foliosus var. vineatus H. E. McMinn 1941-4-26 5320 Sonoma Nine mi S of Guerneville Comment
  RSA0005484  Ceanothus foliosus var. vineatus H. E. McMinn 1936-4-5 4406 Sonoma West of Vine Hill School, ca. 10 miles west of Santa Rosa. Comment
  CAS-BOT-BC50001  Ceanothus gloriosus John Thomas Howell 1935-5-5 12617 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC49946  Ceanothus gloriosus var. exaltatus John Thomas Howell 1935-5-5 12624 Sonoma Kenwood Comment
  SD42465  Ceanothus gloriosus var. exaltatus Carl B. Wolf 1941-7-30 11108 Sonoma Along coast, 8I(c) mi. S. Stewarts Poimt at entrance to Salt Point Ranch 29 Comment
  UC604115  Ceanothus gloriosus var. exaltatus Leo Koch 1938-3-30 72 Sonoma Santa Rosa Junior College Campus. Beside north entrance. Vine Hill region Comment
  LA43584  Ceanothus gloriosus var. exaltatus Henry Reents; 1936-5-2 sn Sonoma 0.5 mi. past slough, on rd. to Rio Nido Comment
  CAS-BOT-BC63736  Ceanothus griseus A. A. Heller 1903-4-23 6606 Sonoma Fort Ross. Comment
  UC1070782  Ceanothus jepsonii E. Armstrong 1934-3-26 935 Sonoma 4 mi nw Camp Meeker; Sebastopol quad Comment
  CDA9346  Ceanothus jepsonii subsp. jepsonii D. G. Kelch 2006-6-24 6 .325 Sonoma On serpentine along Harrison Grade. Comment
  CAS-BOT-BC51878  Ceanothus parryi John Thomas Howell 1941-4-5 16172 Sonoma Rincon Ridge Comment
  JEPS25143  Ceanothus parryi G. Thomas Robbins 1959-5-16 4013 Sonoma on Spring Mtn Road between Calistoga Road and Sonoma-Napa County line (along upper Mark West Creek, Mayacamas Mts.); Mayacamas Mts., along upper Mark West Creek 426 Comment
  POM136669  Ceanothus parryi A. A. Heller, H. E. Brown 1902-5-29 5620 Sonoma Mt. Hood. Comment
  CAS-BOT-BC53041  Ceanothus sonomensis A. A. Heller; H. E. Brown 1902-3-27 s.n. Sonoma Western Base of Mt. Hood Comment
  CAS-BOT-BC53039  Ceanothus sonomensis Milo S. Baker 1927-3-5 2011 a Sonoma South slope of Hood Mt. on Macertney Ranch 213 Comment
  UCD112735  Ceanothus thyrsiflorus var. griseus Steven E. Smith 1977-5-14 25 Sonoma 3.8 mi. N. of Graton, W. side of Graton-Occidental Road. 5 Comment
  CAS-BOT-BC366942  Centaurea Greg de Nevers 1993-5-30 10467 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Piney Canyon Rd. from Bald Hills 400 Comment
  CAS-BOT-BC282017  Centaurea calcitrapa Greg de Nevers 1987-5-11 8176 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd, Santa Rosa 400 Comment
  SEINET11843779  Centaurea calcitrapa W. Knight, Wagnon, K. 1987-1 6102 Sonoma Willow Brook N of Petaluma Comment
  UCD130037  Centaurea melitensis Frederica Bowcutt 1996-5-19 2136 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 air mile east of Red Mountain. Gray Pine Trail. 731 Comment
  UCD130036  Centaurea melitensis Frederica Bowcutt 1994-6-24 1891 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles E of Kenwood and 18 air miles NW of Napa. Vista Trail about 1/4 way from Bald Mountain Trail to Headwaters Trail. 554 Comment
  UC579562  Centaurea solstitialis H. S. Yates 1935-10-3 5341 Sonoma Santa Rosa 53 Comment
  JEPS20838  Centaurium muehlenbergii Harry K. Roberts 1958-7-8 Sonoma 0.1 mi e junction of the Sebastopol and Occidental roads (and extending w toward Sebastopol for 1.2 mi on the lower half of the borrow pit on the s side of the Sebastopol-Santa Rosa highway) Comment
  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
  JEPS97613  Centaurium trichanthum R. D. Stone and G. L. Clifton 1983-6-16 551 Sonoma Little Geysers; Upper Big Sulphur Creek drainage 701 Comment
  CAS-BOT-BC288812  Centromadia fitchii Lewis S. Rose 1935-9-11 35623 Sonoma 2 miles N of Healdsburg 39 Comment
  UCD160839  Centromadia fitchii James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3482 Sonoma Section 10, ca. 1 mile west of the Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  UC1125792  Cerastium arvense H. S. Yates 1934-4-21 3788 Sonoma near Bodega; Sebastopol Quad. Comment
  CAS-BOT-BC388439  Cerastium glomeratum Peter H. Raven 1954-2-27 6423 Sonoma Cavedale Road, ca. 3 miles n. of Boyes Springs, Sonoma Valley Comment
  CAS-BOT-BC279779  Chamaemelum fuscatum John H. Thomas 1974-3-20 17061 Sonoma Near Asti Comment
  CAS-BOT-BC279785  Chamaemelum fuscatum Thomas Nelson; James Nelson 1975-3-25 1751 Sonoma Asti Comment
  CAS-BOT-BC279790  Chamaemelum fuscatum Peter H. Raven 1963-4-12 18161 Sonoma Along U.S. 101 just south of Asti Comment
  RSA79015  Chamaemelum fuscatum P. A. Munz 1952-3-23 17351 Sonoma 0.5 mile among Vines in vineyard, 2 miles S of Asti Vineyard (Italian Swiss Colony). Comment
  UCD130400  Chamaemelum fuscatum Philip A. Munz 1952-3-23 17351 Sonoma 2 miles south of Asti Vineyard (Italian Swiss Colony). Comment
  UC73437  Chamaesyce serpyllifolia Miss Alice King Sept. 1896 Sonoma near Healdsburg Comment
  RSA0010715  Chasmanthium latifolium Joan Stewart 1997-6-8 635 Sonoma Luther Burbank Home and Gardens, Santa Rosa CA Comment
  UC205112  Cheilanthes intertexta Michener and Bioletti March 1893 Sonoma Hood's Peak Comment
  RSA783840  Chenopodium Peter Rubtzoff 1971-8-9 6638 Sonoma Laguna, Chileno Valley. Comment
  RSA756235  Chenopodium botrys Barbara Ertter 1988-11-5 8029 Sonoma Lake Sonoma 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  RSA788829  Chlorogalum Carrie A. Herd 1982-4-25 80 Sonoma Crane Creek Regional Park, Flattened area above Crane Creek Comment
  CAS-BOT-BC354325  Chlorogalum pomeridianum Peter Rubtzoff 1958-7-19 3765 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UCR121475  Chlorogalum pomeridianum George K. Helmkamp, E. A. Helmkamp 2000-6-18 5697 Sonoma Outer North Coast Ranges, along Calif. Hwy 128, 0.5 mi south of Mendocino Co. line 381 Comment
  CAS-BOT-BC493399  Chlorogalum pomeridianum Roxana S. Ferris; Laura Lorraine 1961-6-14 13527 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  RSA369225  Chlorogalum pomeridianum var. pomeridianum Christopher Davidson 1977-6-20 6010 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  CAS-BOT-BC191506  Chorizanthe cuspidata var. villosa Alice Eastwood 1915-6-29 4832 Sonoma Bodega Point Comment
  CAS-BOT-BC191550  Chorizanthe cuspidata var. villosa Walter Knight; Irja Knight 1963-8-13 164 Sonoma Horseshoe Cove Comment
  SBBG32386  Chorizanthe cuspidata var. villosa L. S. Rose -Aug-1962 62077 Sonoma Bodega Pt 30 Comment
  UC126080  Chorizanthe cuspidata var. villosa Katharine Brandegee June 1905 Sonoma Bodega Point Comment
  CAS-BOT-BC257010  Chorizanthe membranacea H. N. Bolander 1860-1-1 3959 Sonoma At the geysers Comment
  SEINET3385995 Image available Chrysanthemum segetum Lewis S. Rose 1933-5-9 33154 Sonoma Bodega Bay, Wet Fields Comment
  OBI59827  Chrysolepis chrysophylla var. minor P. C. Pendse 1979-10-7 s.n. Sonoma Salt Point State Park Comment
  CAS-BOT-BC176198  Cichorium intybus Peter Rubtzoff 1961-9-6 4727 Sonoma Laguna de Santa Rosa area northeast of Graton. 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
  UCD160834  Cirsium cymosum James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3369 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC279996  Cirsium douglasii var. douglasii Alice Eastwood 1915-6-29 4887 Sonoma Bodega Point Comment
  CAS-BOT-BC285709  Cirsium occidentale var. occidentale Ella Dales Cantelow 1941-6-7 3555 Sonoma State Hy 1 w. of Bodega Comment
  UC1618421  Cirsium occidentale var. venustum Barbara Ertter, Lincoln Constance 1993-7-10 12100 Sonoma 5 mi. beyond pavement on Rockpile Rd. w. of Lake Sonoma (rd. to Annapolis) Comment
  UC76019  Cirsium occidentale var. venustum Milo S. Baker 1898-6-11 658 Sonoma Little Sulphur Creek Comment
  RSA0070859  Cirsium quercetorum J. T. Howell 1938-7-3 13953 Sonoma Stony Point. Comment
  UC582991  Clarkia amoena P. A. Munz 1936-8-8 14311 Sonoma coast 5 mi n Jenner Comment
  UC20290  Clarkia amoena F. T. Bioletti 1892-1 Sonoma Point Arena Comment
  POM184784  Clarkia amoena subsp. amoena Merle Randall 1930-6-14 s.n. Sonoma Sonoma County: Alamere Creek Comment
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Sep 20 2012
  UC167080  Clarkia amoena subsp. amoena Marcus E. Jones, A. M. 1881-7-1 Sonoma Duncan's Mills Comment
  RSA458845  Clarkia amoena subsp. amoena Unspecified 1941-6-20 s.n. Sonoma Between Santa Rosa and Ukiah, Highway 101 Comment
  CHSC22113  Clarkia amoena subsp. huntiana Robert A. Schlising; Lloy Thurman 1962-6-15 2303 Sonoma Coast Ranges. Dutcher Creek Road, S of Cloverdale and Asti; roadside. Comment
  POM171626  Clarkia amoena subsp. huntiana Charlotte M. Hoak 1912-08 s.n. Sonoma Monte Rio. Comment
  CAS-BOT-BC172207  Clarkia concinna Rimo Bacigalupi 1926-5-2 1397 Sonoma Cazadero Comment
  CAS-BOT-BC172213  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
  UCD158780  Clarkia concinna James A. Neilson Jr. 1974-6-1 2776 Sonoma Mayacmas Mountains, Geyser Rock, west of Whispering Pines, in the vicinity of the boundary line of Sonoma and Lake Counties. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  UCSB15930  Clarkia concinna Breedlove, Dennis 1962-6-6 Sonoma along State Highway 128; 1.5 miles northwest of U.S. Highway 101; at Cloverdale 121 Comment
  CAS-BOT-BC172204  Clarkia concinna Dorothy Scherer 1997-5-16 132 Sonoma Skaggs Springs Rd, south side, 10-11 mi. east of Hwy. 1 365 Comment
  SD64377  Clarkia concinna Darley F. Howe 1966-6-2 Sonoma Cliff, 1 mile South of Bodega Bay on Highway #1 Comment
  UCSB4289  Clarkia concinna Haller, John 1960-5-28 Sonoma 2.5 miles northwest of US 101; 3.5 miles northwest of Cloverdale; on California 128 152 Comment
  POM161720  Clarkia concinna subsp. concinna R. C. Bacigalupi 1928-5-2 1397 Sonoma Cazadero. Comment
  RSA299011  Clarkia concinna subsp. concinna W. L. Jepson 1921-6-2 9293 Sonoma Alder Glen School. Hopland, N Sonoma County 177 Comment
  CAS-BOT-BC162511  Clarkia gracilis subsp. gracilis G. DeNevers 1981-5-9 1032 Sonoma Pepperwood Ranch, just above the old Strebel Homestead Comment
  UC762861  Clarkia gracilis subsp. gracilis Robert F. Hoover 1941-5-14 5083 Sonoma 3 mi s Monte Rio (on road to Camp Meeker) Comment
  CAS-BOT-BC162514  Clarkia gracilis subsp. gracilis Freed W. Hoffman 1947-5-18 771 Sonoma Dutch Bill Creek near Camp Meeker Comment
  CAS-BOT-BC163134  Clarkia gracilis subsp. sonomensis Volney Rattan 1877-6-23 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC163137  Clarkia gracilis subsp. sonomensis Michener; Bioletti 1893-6-1 s.n. Sonoma Glen Ellen Comment
  UC107859  Clarkia gracilis subsp. sonomensis Michener and Bioletti 1893-6-10 37 Sonoma Glen Ellen Comment
  CAS-BOT-BC163131  Clarkia gracilis subsp. sonomensis May 1886-6-1 s.n. Sonoma Unspecified Comment
  POM153237  Clarkia gracilis subsp. sonomensis C. L. Hitchcock 1928-6-7 19 Sonoma Sonoma to Santa Rosa Highway, 0.5 mile south of junction with road to Glen Ellen. 30 Comment
  CAS-BOT-BC163149  Clarkia imbricata Peter Rubtzoff 1952-7-20 1308 Sonoma Pitkin Ranch, Nine Hill region Comment
  RSA108400  Clarkia imbricata Harlan Lewis, M. Lewis 1951-7-10 865 Sonoma Santa Rosa to Guerneville; 6230 Vine Hill road Comment
  SEINET7067345  Clarkia purpurea 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
  UC424795  Clarkia purpurea Milo S. Baker 1930-6-6 4165 a Sonoma between Wake Robin Lodge and Brenner's Comment
  UC423081  Clarkia purpurea subsp. quadrivulnera Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  CAS-BOT-BC164584  Clarkia purpurea subsp. viminea A. A. Heller 1902-6-4 5646 Sonoma Santa Rosa Comment
  CAS-BOT-BC164587  Clarkia purpurea subsp. viminea Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road 12 miles west of Hwy 101 Comment
  CAS-BOT-BC165675  Clarkia unguiculata A. A. Heller 1902-6-11 5686 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  JEPS43595  Clarkia unguiculata W. L. Jepson 1923-6-28 10014 Sonoma Sonoma Canyon Kenwood 243 Comment
  UC75680  Clarkia unguiculata Milo S. Baker 1898-6-11 594 Sonoma Cemetery Santa Rosa Comment
  SEINET12194281  Clarkia unguiculata F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -156 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 80 Comment
  UCD100578  Claytonia exigua J. Adams; J. Weick, Daehler, Lu 1993-5-8 286 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
  UC754333  Claytonia gypsophiloides R. Bacigalupi 1948-3-6 2855 Sonoma 2 mi w Skaggs Springs Comment
  CAS-BOT-BC439633  Claytonia parviflora subsp. parviflora Peter Rubtzoff 1957-5-4 3305 Sonoma Duncan Mills Marsh. Comment
  SEINET11935786  Claytonia perfoliata Unknown 1987-1 70028 Sonoma S of mouth of Russian River, Goat Rock State Park, W of Coast Hwy 1, S of main entrance rd into park 9 Comment
  CAS-BOT-BC443682  Claytonia perfoliata subsp. perfoliata Alice Eastwood 1921-4-24 10385 Sonoma Santa Rosa Comment
  SEINET12091841  Clematis lasiantha F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -101 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  RSA0017422  Clematis ligusticifolia Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills Comment
  CHSC101621  Clintonia andrewsiana David W. Isle; Rhonda Isle 2005-11-11 1632 Sonoma SE of Gualala, along drainage, just west of bridge, south of road between Annapolis and Stewart's Point in old growth redwood forest. Comment
  CAS-BOT-BC499955  Clintonia andrewsiana George Syme 1917-4-25 s.n. Sonoma Guerneville Comment
  UCD123569  Collinsia heterophylla Frederica Bowcutt 1994-5-21 1830 Sonoma Sugarloaf Ridge State Park. About 40 air miles north of San Francisco, 11 air miles east of Santa Rosa, 18 air miles northwest of Napa, 1.5 air miles northeast of Kenwood. Along the Hillside Trail, 1/4 mile past Sugar Pine Trail junction. 396 Comment
  JEPS21814  Collinsia sparsiflora var. arvensis Alvin W. Urquhart 1958-4-13 21 Sonoma 2 mi e Glenn Ellen (Sonoma Mt. rd) 304 Comment
  UC583427  Collinsia sparsiflora var. arvensis Elmer I. Applegate 1934-3-25 8850 Sonoma w slope of Mayacama Mountains, Pine Flat Region, Sansal Creek Sansal Creek; Mayacama Mountains, Pine Flat Region, Sansal Creek Comment
  UC1238965  Collinsia sparsiflora var. arvensis Freed W. Hoffman 1947-3-16 828 Sonoma near Guerneville (Road to Austin Ranch, headwaters of Fife Creek, North Coast Ranges); North Coast Ranges, headwaters of Fife Creek Comment
  UCD123670  Collinsia sparsiflora var. sparsiflora Botany 102 Students 1993-4-24 99 Sonoma About 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles northeast of Kenwood and 18 air miles northwest of Napa. About 1.25 air miles southeast of Red Mountain, southeast of Sonoma Creek, along Hillside Trail. 396 Comment
  CHSC22315  Collinsia tinctoria Robert A. Schlising; Lloy Thurman 1962-6-15 2307 Sonoma Dry Creek Road, few miles E of Skaggs Springs. Coast Ranges. Comment
  JEPS15453  Collinsia tinctoria Eleanor Armstrong May 1932 508 Sonoma Camp Meeker; near rr tressel 121 Comment
  UCSB31777  Collinsia tinctoria Townsend, J. 1977-5-30 Sonoma East side Russian river; about 2 miles south of Guerneville 335 Comment
  UC879756  Collomia grandiflora Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
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Jan 23 2016
  UC30212  Collomia heterophylla H. N. Bolander 1864-1 3860 Sonoma bed Russian River Comment
  UCR265087  Collomia heterophylla Ann Howald 2015-4-28 3373 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 11.5 miles west of intersection with Rockpile Rd, Warm Springs drainage 408 Comment
  OBI23312  Convolvulus arvensis Jim Rogers 1972-7-16 6 Sonoma Comment
  CAS-BOT-BC288969  Conyza floribunda Mary P. Wells 1990-1-3 1027 Sonoma Edge of large parking lot two blocks W of Laguna de Santa Rosa Creek, Sebastapol Comment
  SDSU657  Corallorhiza maculata D. F. Howe 1963-7-3 3591 Sonoma Under redwoods, 20 miles north of #12 on #1. Comment
  UCD138898  Corallorhiza striata K. Esau 1933-4-14 s.n. Sonoma Napa County, Calistoga, near petrified forest. Comment
  CAS-BOT-BC371465  Cordylanthus Greg de Nevers 1989-11-2 9118 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Top of Telegraph Hill. 400 Comment
  UCR256101  Cordylanthus Greg de Nevers 1997-8-17 11074 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa, Oak Hill Ranch 400 Comment
  SEINET4676260  Cordylanthus brunneus Lewis S. Rose 1955-7-11 55110 Sonoma 2 miles east of Occidental.; 0 244 Comment
  UCD151307  Cordylanthus tenuis subsp. brunneus James A. Neilson Jr. 1974-7-31 2863 Sonoma Mayacmas Mountains. North of Little Geysers. (Elevation estimated by label-maker using topo map.) 731 Comment
  CAS-BOT-BC212289  Cornus glabrata Peter Rubtzoff 1958-7-26 3815 Sonoma Laguna de Santa Rosa east of Sabastapol Comment
  UCD15008  Cornus nuttallii James Aronson 1977-4-15 20 Sonoma along Skaggs Springs Road, 12.7 miles west of the intersection with Dutcher Creek Road; Comment
  CAS-BOT-BC210428  Cornus sericea Peter Rubtzoff 1951-6-7 126 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC180191  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-2-16 527 Sonoma Mill Creek Road Comment
  CDA13750  Corylus cornuta var. californica G. F. Hrusa, R. Gross 1997-2-1 13620 Sonoma North Coast Ranges; Kortum Canyon Rd., approx. 1/4 mi. W of Hwy 29, immed. W of downtown Calistoga. Comment
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Jul 28 2008
  POM66990  Cotula coronopifolia Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  SD38617  Cotula coronopifolia Edith A. Purer 1932-7-24 Sonoma Bodega Bay Comment
  CAS-BOT-BC290303  Cotula coronopifolia Peter Rubtzoff 1954-8-9 1666 Sonoma Bodega Head Marsh. Comment
  SD206992  Crassula Reid Moran, J. Vale 1989-5-3 Sonoma Sonoma Valley Regional Park; E of Glen Ellen. Comment
  CAS-BOT-BC427652  Crassula aquatica Peter Rubtzoff 1974-5-11 7386 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road. Comment
  CAS-BOT-BC427658  Crassula aquatica Peter Rubtzoff 1971-7-3 6587 Sonoma Near (south of) U.C. Bodega Marine Laboratory dormitory. Comment
  SD206990  Crassula solieri Reid Moran 1991-5-14 Sonoma Sonoma Valley Regional Park; E of Glen Ellen, Highway 12, 0.3 miles southeast of intersection with Arnold Drive. 99 Comment
  UCD101816  Crassula solieri Reid Moran; Chas. Quibell 1991-5-15 31053 Sonoma Sonoma Valley Regional Park, 1 km E of Glen Ellen (Rt. 12, 0.5 km S of Arnold Drive.) 110 Comment
  CAS-BOT-BC143502  Crataegus gaylussacia Peter Rubtzoff 1958-5-4 3628 Sonoma Forestville Marsh Comment
  CAS-BOT-BC143508  Crataegus gaylussacia Peter Rubtzoff 1958-5-3 3614 Sonoma Atascadero Creek Marsh Comment
  UCD116890  Crocanthemum scoparium Charles B. Heiser Jr. 1946-5-19 1744 Sonoma Vine Hill, W of Santa Rosa Comment
  UC963925  Crocanthemum scoparium var. vulgare Milo S. Baker 1947-5-30 11770 Sonoma sw slope Hood Mt. Comment
  UCR246781  Crupina vulgaris Les Sonder 1990-1-25 s.n. Sonoma Anadell State Park, Santa Rosa 351 Comment
  CDA37890  Crupina vulgaris CDFA Staff 1991-1 s.n. Sonoma 0 Comment
  OBI51541  Crupina vulgaris Keith Wagnon 1989-7-3 s.n. Sonoma SE of Santa Rosa at Annadel State Park 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
  RSA262196  Crypsis schoenoides Peter Rubtzoff 1970-5-30 6243 Sonoma 5 mi. north of Sears Point. Comment
  RSA262197  Crypsis schoenoides Peter Rubtzoff 1969-10-29 6200 Sonoma Pond on River Road 3 miles W of Fulton. Comment
  SEINET10569437  Cupressus William H. Brewer 1861-11-9 Brewer s.n. 1861 Sonoma Near the little Geysers Comment
  CAS-BOT-BC80749  Cupressus macnabiana Walter Knight; Irja Knight; J. T. H. 1984-9-26 5239 Sonoma 4.5 mi. up Cavedale Rd. Comment
  SEINET11738930  Cupressus macnabiana W. Knight, Knight, I. 1981-1 3983 Sonoma 5.2 mi up Cavedale Road from jct of state route 12 Comment
  HSC99996  Cupressus pygmaea J. P. Smith, , J. O. Sawyer, & R. J. Cole 2009-10-10 12692 Sonoma Salt Point State Park Comment
  CAS-BOT-BC85472  Cupressus sargentii J. Ed. McClellan; Mrs. J. Ed. McClellan 1975-1-11 s.n. Sonoma Harrison Grade Rd. Comment
  JEPS39740  Cupressus sargentii Alice King Sonoma Van Ness Ranch Mt. St. Helena, Van Ness Ranch Comment
  UC353811  Cupressus sargentii Milo S. Baker 1928-4-18 2966 a Sonoma 3 mi n Occidental (W. B. Coy Ranch) 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
  CAS-BOT-BC190350  Cynodon dactylon Peter Rubtzoff 1956-9-14 2859 Sonoma Vacation Beach, near Guerneville. On Russian River bottom. Comment
  POM115532  Cynodon dactylon Marcus E. Jones 1982-7-18 s.n. Sonoma Duncan's Mills ., [County not indicated on specimen label]. Comment
  CAS-BOT-BC190433  Cynosurus echinatus G. DeNevers 1981-5-5 957 Sonoma Pepperwood Ranch. On the bench south of the Studio. Comment
  OBI35889  Cynosurus echinatus David J. Keil 1983-6-29 17203 Sonoma Ca. 10 mi SE of Ft. Ross along Hwy 1 Comment
  UCD160966  Cynosurus echinatus James A. Neilson Jr. 1975-7-8 3416 Sonoma Mayacmas Mountains. Socrates Mine Road, near summit. (Elevation and coordinates estimated by label maker.) 975 Comment
  CAS-BOT-BC350926  Cyperus Peter Rubtzoff 1978-7-19 9239 Sonoma Russian River at Del Rio Beach, c. 2.5 miles east of Healdsburg on South Fitch Mountain Road. Comment
  UCR254742  Cyperus Peter Rubtzoff 1970-9-2 6351 Sonoma Russian River bottom at Mirabel Park 5 Comment
  CAS-BOT-BC114749  Cyperus alternifolius Peter Rubtzoff 1970-10-27 6417 Sonoma Freestone. Comment
  UCR218735  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 2010-6-4 16222 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  CAS-BOT-BC114519  Cyperus eragrostis Walter Knight; Irja Knight 1963-10-1 381 Sonoma Railroad Ave & freeway, Cotati. Comment
  JEPS117113  Cyperus niger Peter Warner 2010-7-29 176 Sonoma Lower Pitkin Marsh, N of primary drainage channel, ~ 347 m, N 45 deg. E from Hwy. 116 gate, in quaking bog (fen) area Comment
  UC845295  Cypripedium montanum Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
Read comments
Jan 23 2016
  SEINET12078101  Cypripedium montanum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -257 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC435189  Cypselea humifusa Peter Rubtzoff 1958-8-17 3886 Sonoma Laguna de Santa Rosa northeast of Graton (nr. Guerneville Rd.). Comment
  JEPS97535  Dactylis glomerata R. D. Stone 1980-11-29 327 Sonoma Northern part of the Sea Ranch development N of Stewart's Point. Comment
  CAS-BOT-BC445560  Damasonium californicum J. W. Congdon 1880-5-16 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC192272  Danthonia californica G. DeNevers 1981-7-1 1719 A Sonoma On the trail to the Studio. Pepperwood Ranch Comment
  CAS-BOT-BC192278  Danthonia californica John Thomas Howell 1930-6-8 5217 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  UCD60467  Danthonia californica P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa, Calistoga. Petrified Forest Road. Comment
  UCD61010  Danthonia californica R. Tofsrud 1948-5-9 Sonoma 1 mi. E of Mark West Springs. Comment
  UCR152279  Danthonia californica var. americana Beecher Crampton 1965-5-13 7339 Sonoma c. 8.5 mi SE of Geyersville, S end of Alexander Valley, jct. of Calistoga (hwy 128) and Chalk Hill roads 85 Comment
  UC444931  Datura stramonium V. King Chesnut 1887-8-1 Sonoma Santa Rosa Comment
  UCR279632  Datura stramonium Peter Rubtzoff 1968-9-21 5986 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  CDA41056  Datura stramonium J. C. Violetti 1968-6-16 s.n. Sonoma Mrs. Lucas prop. 652 Brittain Lane, Santa Rosa. 0 Comment
  CDA5765  Datura stramonium T. C. Fuller 1957-12-17 Sonoma 1 mile north of Petaluma. 0 Comment
  CDA15310  Daucus carota G. F. Hrusa 1998-11-29 14907 Sonoma Foote Ranch, corner of Hwy 128 and Ida Clayton Rd., Knights Valley. 0 Comment
  UCR279606  Deinandra corymbosa Peter Rubtzoff 1955-9-9 2121 Sonoma Bodega Head Marsh 2 Comment
  UC906499  Delphinium Elizebeth Armstrong 1931-4 Sonoma ranch near Santa Rosa Comment
  UC912489  Delphinium Herbert L. Mason 1928-4-13 4326 Sonoma wet marsh and pools near Petaluma Comment
  UC963909  Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Val., west of Occidental on Hedrin Ranch Sonoma Co. Comment
  CAS-BOT-BC9014  Delphinium decorum A. A. Heller 1938-5-14 15089 Sonoma East of Bodega Bay Comment
  JEPS23883  Delphinium decorum subsp. decorum A. A. Heller 1938-5-14 15089 Sonoma steep slope just e Bodega Bay Comment
  UC118571  Delphinium decorum subsp. decorum Alice Eastwood April 1899 Sonoma type locality Bodega Point 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
  UC635360  Delphinium nudicaule H. L. Mason 1928-4-8 4287 Sonoma sea bluff two mi n Fort Ross Comment
  UC635362  Delphinium nudicaule H. L. Mason 1930-6-1 5643 Sonoma mouth Gualala River Comment
  UC136330  Delphinium nudicaule C. F. Baker 1903-4-20 2620 Sonoma Mt. St. Helena Comment
  JEPS83463  Delphinium variegatum subsp. variegatum Jack and Betty Guggolz 1985-5-9 829 Sonoma e Spring Lake; Spring Meadows tent. subdiv. Comment
  UC906473  Delphinium variegatum subsp. variegatum J. Ewan 1935-5-12 9240 Sonoma 2 mi n Kenwood; Los Guilicos Comment
  UC118682  Delphinium variegatum subsp. variegatum Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  CAS-BOT-BC5964  Dendromecon myrtifolia Amos Arthur Heller; H. E. Brown 1902-5-29 5618 Sonoma Mt. Hood Comment
  NY387587  Dendromecon myrtifolia A. A. Heller 1902-5-29 5618 Sonoma Mt. Hood Comment
  UCD95188  Dendromecon rigida E. Frost 1996-5-26 21 Sonoma Mt. St. Helena, 160 yards in along hiking trail. 609 Comment
  UCD95180  Dendromecon rigida Mrs. H. Dwyer 1928-5-1 1411 Sonoma Location unknown. 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-BC192604  Deschampsia cespitosa subsp. holciformis John H. Thomas 1976-6-16 18345 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC192607  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1945-5-30 20898 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC192613  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1951-6-2 95 Sonoma Western branch of the Upper Marsh Comment
  UC1146616  Deschampsia cespitosa subsp. holciformis Freed W. Hoffman 1944-6-8 2032 Sonoma Kruz Ranch North Coast Ranges, Sonoma Coast, Kruz Ranch Comment
  UC573728  Deschampsia cespitosa subsp. holciformis H. S. Yates 1937-6-6 6586 Sonoma 5 mi. s. Jenner; Duncan Mills Quad. Comment
  UCD63789  Deschampsia cespitosa subsp. holciformis David L. Morgan 1956-5-23 Sonoma 4 mi. S of Jenner on State Highway 1. Comment
  JEPS45809  Deschampsia danthonioides Eleanor Armstrong 1932-5-18 160 Sonoma 4 mi. w. Santa Rosa 45 Comment
  RSA785842  Deschampsia danthonioides Peter Rubtzoff 1974-5-26 7494 Sonoma Todd road 1.5 mi from Hwy 116 and 0.5 mi from Llano Road Comment
  UCD62498  Deschampsia danthonioides R. Tofsrud 1941-5-1 77 Sonoma Near Santa Rosa. Comment
  CAS-BOT-BC201646  Deschampsia danthonioides G. DeNevers 1981-5-14 1155 Sonoma Top of Horse Hill near the Water Tank Comment
  CAS-BOT-BC201972  Deschampsia elongata Peter Rubtzoff 1960-5-22 4403 Sonoma Laguna de Santa Rosa area east of Graton, between Occidental and Guerneville roads Comment
  CAS-BOT-BC227672  Deschampsia elongata Peter Rubtzoff 1971-6-25 6560 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing. Comment
  RSA155506  Deschampsia elongata L. S. Rose 1962-6-1 62064 Sonoma 1 mi. nw of Freestone 76 Comment
  RSA126963  Deschampsia holciformis H. S. Yates 1937-6-6 6586 Sonoma 5 miles S. of Jenner. 30 Comment
  UC9933  Dicentra formosa Harley P. Chandler 1900-5-25 669 Sonoma Bodega Comment
  CAS-BOT-BC208932  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell; J. W. Stacey 1936-7-26 12680 Sonoma Pitkin Marsh, 5 miles N of Sebastopol Comment
  CAS-BOT-BC242664  Dichanthelium acuminatum subsp. thermale Beecher Crampton 1964-8-18 7139 b Sonoma N.E. Sonoma County, The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/2 mile east of Geyser Resort area, slope of steam well (locally called The Outlaw) or otherwise thermal no. 10 (Thermal Power co.) Comment
  SEINET10559863  Dichanthelium acuminatum var. acuminatum Crampton 1964-8-18 CRAMPTON 7139 f Sonoma N.E. Sonoma Country, The Geysers. 12 miles (in direct line) east of Colverdale, ca. 1/2 mile east Geyser Resort area, slope of stream well (locally called "The Outlaw") or otherwise thermal no. 10 (Thermal Power co.), steep banks along road to steam well. Below slope of live oaks and digger pines, loose sandy-cinnabar soil, moist to dry, plants erect to wide spreading, Topotype. 494 Comment
  RSA94467  Dichanthelium acuminatum var. fasciculatum Peter Rubtzoff 1951-6-9 174 Sonoma Pitkin Marsh, near Forestville; lower part of the Upper Marsh Comment
  UC1084355  Dichelostemma capitatum G. Thomas Robbins 1937-3-25 13 Sonoma 8-10 mi e Santa Rosa; Santa Rosa Creek Canyon Comment
  UC1198177  Dichelostemma capitatum Joseph P. Tracy 1933-5-1 12125 Sonoma Knights Valley 152 Comment
  CAS-BOT-BC502208  Dichelostemma capitatum L. R. Abrams 1918-4-27 6907 Sonoma Independence School near Healdsburg Comment
  SEINET10965902  Dichelostemma capitatum A. Arthur Heller, H. E. Brown 1902-3-17 Heller 5087 Sonoma Hills 8 miles Northeast of Santa Rosa. Comment
  UCD23377  Dichelostemma capitatum Steven E. Smith 1977-4-15 16 Sonoma Perianth deep purple, 3 linear staminodes. 10.4 miles west of intersection with Dutcher Creek Rd. on Skaggs Springs Rd. Comment
  CHSC33027  Dichelostemma capitatum subsp. capitatum Jane A. Rogers 1979-4-15 11 Sonoma S side of Barnett Valley Rd., ca. 2 mi. e of intersection of Barnett Valley Rd. and Bodega Hwy., ca. 4 mi. w of Sebastopol. 137 Comment
  UCD139157  Dichelostemma congestum Frederica Bowcutt 1996-5-19 2149 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 1 air mile souht of Red Mountain. Lower Bald Mountain Trail. 472 Comment
  CAS-BOT-BC151881  Diplacus congdonii John Thomas Howell 1937-4-11 12892 Sonoma Triniti Mt. east of Glen Ellen Comment
  CAS-BOT-BC151973  Diplacus douglasii Milo S. Baker 1927-4-12 2072 a Sonoma S.E. slope Hood's Peak 396 Comment
  SEINET12326112  Dipsacus fullonum W. Knight, Knight, I. 1983-1 4710 Sonoma Calistoga Road 3 mi from State Rt 12, 300 yards N of summit 152 Comment
  UCD116840  Dirca occidentalis G. L. Stebbins Jr.; W. S. Boyle 1942-5-12 3230 Sonoma 2 miles west of Bodega, on Bodega Canyon Road. Comment
  UCD64360  Distichlis spicata Collector Unknown 1941-9-1 153 Sonoma Near mouth of Walker Creek by Tomales Bay. Comment
  UCD64361  Distichlis spicata Collector Unknown 1941-9-1 153 Sonoma Near mouth of Walker Cr. by Tomales Bay. Comment
  UCD64362  Distichlis spicata Collector Unknown 1941-9-1 154 Sonoma Near mouth of Walker Cr. by Tomales Bay. Comment
  CDA1349  Dittrichia graveolens S. Ostrom 2006-9-1 PDR# 1328648 Sonoma Windsor; Shiloh Rd. & Business Park Ct. Comment
  RSA66917  Dodecatheon hendersonii subsp. cruciatum E. K. Balls 1951-5-3 16406 Sonoma Maacama (Miyakama) Creek, 2mi. from turn-off to Geyserville, from Petrifird Forest, Hwy 28, 610 Comment
  UCD33097  Downingia concolor Beecher Crampton 1966-5-10 7728 Sonoma Sonoma County, 6.5 miles north of Sonoma on State Hwy. 12, Glen Ellen station (CA dept. of forestry). Comment
  UC1244021  Downingia concolor var. concolor John H. Weiler 1960-5-22 60128 Sonoma Schellville, Southern Pacific railroad gradings Schellville Comment
  JEPS108504  Downingia concolor var. concolor Lisa Schultheis 1995-5-31 191 -95 Sonoma North Windsor. Intersection of Starr Rd. and Redwood Hwy., NE end. Comment
  JEPS29142  Downingia concolor var. concolor John H. Weiler 1961-4-30 6197 Sonoma 1.2 mi w Schellville railroad station (along State Highway 37) Comment
  UC76661  Downingia concolor var. concolor Miss M. Alice King May 1897 Sonoma Comment
  UCD164686  Downingia cuspidata Peter Rubtzoff; Tim Tunison, Nancy Harrison 1976-6-5 8581 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC28975  Downingia pusilla F. T. Bioletti 1892-1 Sonoma Comment
  CAS-BOT-BC41418  Draba verna G. DeNevers 1981-4-1 600 Sonoma Pepperwood Ranch. In Leslie Creek, 200 m up from Mark West Creek and Leslie Creek intersection. Comment
  LA208036  Drymocallis glandulosa John Thomas Howell; 1930-6-8 5289 Sonoma 8.5 mi. N of Bodega Bay Comment
  CAS-BOT-BC159463  Drymocallis glandulosa var. glandulosa John Thomas Howell 1930-6-8 5255 Sonoma Rocky slope, 1 mile east of Bodega Bay Comment
  CAS-BOT-BC71017  Dryopteris arguta A. A. Heller 1902-3-18 5095 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  CAS-BOT-BC71014  Dryopteris arguta Volney Rattan 1877-6-25 s.n. Sonoma Cloverdale Comment
  UC1201281  Dryopteris arguta E. Samuels 233 Sonoma Comment
  CAS-BOT-BC411378  Dudleya caespitosa Peter Rubtzoff 1952-6-10 1245 Sonoma Resort at E base of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC428379  Dudleya farinosa Alice Eastwood 1915-6-5 s.n. Sonoma Calistoga Comment
  SEINET1909911  Dysphania botrys Barbara Ertter 1988-1 8029 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge 152 Comment
  UCD98818  Dysphania pumilio Barbara Ertter 1988-11-5 8032 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  CAS-BOT-BC210080  Echinochloa Peter Rubtzoff 1976-8-29 8835 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC176373  Echinochloa crus-galli Peter Rubtzoff 1953-11-1 1430 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCR74391  Ehrharta calycina Peter G. Connors 1991-5-22 107 Sonoma Bodega Head, Bodega Bay. Bay Flat Road, near Clark Marsh Comment
  CAS-BOT-BC257351  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7881 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  CAS-BOT-BC274413  Eleocharis Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7849 Sonoma Kenwood Marsh. Comment
  UCD164996  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7880 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  UCD164997  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7881 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  CAS-BOT-BC113725  Eleocharis acicularis LeRoy Abrams 1920-7-3 7614 Sonoma Stewarts Point. Comment
  CAS-BOT-BC113318  Eleocharis montevidensis Helen D. Geis 1902-8-1 s.n. Sonoma Sring. Comment
  CAS-BOT-BC112665  Eleocharis parvula Peter Rubtzoff 1969-8-29 6177 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC112073  Eleocharis quinqueflora Peter Rubtzoff 1952-5-31 1125 Sonoma Pitkin Marsh, near Forestville: Lower part of the Upper Marsh. Comment
  CAS-BOT-BC112271  Eleocharis rostellata Peter Rubtzoff 1951-7-21 495 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  CAS-BOT-BC112274  Eleocharis rostellata Peter Rubtzoff 1951-7-7 361 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  RSA94017  Eleocharis rostellata Peter Rubtzoff 1952-5-31 1127 Sonoma Pitkin Marsh, near Forestville; lower part of the Upper Marsh Comment
  CAS-BOT-BC221830  Elymus canadensis Rimo Bacigalupi 1926-5-2 1405 Sonoma Cazadero Comment
  UCD18405  Elymus condensatus William A. Harrey 1982-7-7 s.n. Sonoma 0.5 mi west of state Hwy 1, along Bean Ave. bordering Salmon Creek. Comment
  CDA36958  Elymus glaucus 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
  UCD61840  Elymus glaucus Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-19 23 A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC203719  Elymus glaucus subsp. glaucus G. DeNevers 1981-5-9 1034 Sonoma Pepperwood Ranch. Just above the old Strebel Homestead Comment
  JEPS128373  Elymus glaucus subsp. glaucus Roger Raiche 2000-5-4 062 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS45814  Elymus glaucus subsp. jepsonii Eleanor Armstrong 1932-5-25 176 Sonoma 2 mi s Graton 91 Comment
  UC1146607  Elymus glaucus subsp. virescens Freed W. Hoffman 1943-5-19 2199 Sonoma Russian Gulch North Coast Ranges, Sonoma Coast (cliffs) Comment
  UCD62509  Elymus multisetus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3577 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  UCD62675  Elymus trachycaulus subsp. subsecundus Frederica Bowcutt 1995-11-19 2061 b Sonoma Sugarloaf Ridge State Park. About 50 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, due south of Red Mtn. about 1 air mile along Lower Bald Mtn. SE facing. 411 Comment
  UCD119201  Emmenanthe penduliflora Frederica Bowcutt 1996-5-19 2125 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 firebreak (narrow) btw lower Bald Mtn. and Bald Mtn. Trail. 487 Comment
  RSA609960  Epilobium canum R. S. Woglum 1937-7-17 831 Sonoma Outer Coast Ranges: North of Point Reyes National Seashore, south of the Russian River, Salmon Creek. Comment
  CAS-BOT-BC166618  Epilobium canum subsp. canum Walter Knight; Irja Knight 1963-10-3 497 Sonoma Bennett Valley Comment
  CAS-BOT-BC166621  Epilobium canum subsp. canum John Thomas Howell 1932-10-9 10815 Sonoma Sonoma Creek Canyon near Kenwood Springs Comment
  UC582992  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-7 14307 Sonoma six mi n Bodega (edge of road) Comment
  UCR248960  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1955-7-24 1985 Sonoma Forestville Marsh 71 Comment
  RSA800031  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1955-7-23 1977 Sonoma Forestville Marsh. Comment
  RSA800033  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1954-7-4 1524 Sonoma Austin Creek Marsh. In an area adjoining the marsh in the southwest. Comment
  RSA800039  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1964-8-26 5486 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road 213 Comment
  UC582990  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-8 14312 Sonoma rocky bank Ft. Ross Comment
  UCD105936  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1951-7-8 415 Sonoma Pitkin Marsh, near Forestville. Comment
  UCR248931  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5338 Sonoma Bodega Bay Marsh 15 Comment
  CAS-BOT-BC290557  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1962-8-22 5052 Sonoma Bodega Bay Marsh. Comment
  RSA0015638  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5339 Sonoma Bodega Bay Marsh. Comment
  JEPS38199  Epilobium densiflorum W. L. Jepson 1921-9-8 9431 Sonoma ne Healdsburg (s side of valley); Alexander Valley, Lytton School Comment
  UC873152  Epilobium densiflorum Lewis S. Rose 1938-9-11 38252 Sonoma dry ditch Bloomfield 30 Comment
  UCD106302  Epilobium densiflorum Peter Rubtzoff 1951-8-4 576 Sonoma Pitkin Marsh, near Forestville. Comment
  UC1299436  Epilobium foliosum Freed W. Hoffman 1947-4-13 1848 Sonoma near Guerneville; North Coast Ranges, Gilliam Creek Comment
  CAS-BOT-BC262789  Epilobium hallianum Peter Rubtzoff 1958-5-10 3634 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road crossing. Comment
  RSA800405  Epilobium hallianum Peter Rubtzoff 1962-6-1 4855 Sonoma Freestone Marsh Comment
  UC353896  Epilobium minutum Milo S. Baker 1927-5-7 2145 a Sonoma Adobe Canyon Fitzsimmon's Grade (at base of grade) Comment
  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-BC210086  Equisetum Peter Rubtzoff 1964-8-20 5462 Sonoma Americano Creek area, Petaluma-Valley Ford roadside near Bloomfield. Comment
  RSA790976  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC57209  Equisetum hyemale subsp. affine Peter Rubtzoff 1952-5-31 1104 Sonoma Western branch of the Upper Marsh Comment
  UC1084510  Equisetum laevigatum G. Thomas Robbins 1937-6-18 249 Sonoma along R.R. right-of-way Santa Rosa Comment
  HSC24598  Equisetum telmateia subsp. braunii F. Demostene 1966-4-12 46 Sonoma 25 mi. W of Healdsburg. Comment
  CAS-BOT-BC291171  Erechtites glomeratus Mary P. Wells 1985-5-26 495 Sonoma One-Eyed Jack's Playground. A meadow area at The Sea Ranch Comment
  CAS-BOT-BC164645  Erechtites minimus Peter Rubtzoff 1955-8-20 2056 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC291250  Erechtites minimus Walter Knight; Irja Knight 1963-9-3 256 Sonoma Wiggins Hill Comment
  SD40110  Ericameria ericoides subsp. ericoides Edith A. Purer 1932-7-19 Sonoma Bodega Bay Comment
  CAS-BOT-BC376287  Erigeron Greg de Nevers 1992-6-16 10173 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Franz Creek 304 Comment
  CAS-BOT-BC376395  Erigeron Greg de Nevers 1994-6-13 10526 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Creek. 400 Comment
  SEINET7067253  Erigeron glaucus A. G. Vestal 1947-5-13 s.n. Sonoma South Sonoma Coast, about 1.3 miles north of Salmon Creek on Route 1. Coordinate datum: NAD27. Comment
  UC1299254  Erigeron greenei Freed W. Hoffman 1947-9-5 1249 Sonoma Dutch Bill Creek North Coast Ranges, Dutch Bill Creek Comment
  CAS-BOT-BC295151  Erigeron inornatus Greg de Nevers 1987-7-10 8236 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCR254906  Erigeron inornatus Greg de Nevers 1993-8-7 10480 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC224151  Eriodictyon californicum Peter Rubtzoff 1952-6-3 1169 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC224154  Eriodictyon californicum Walter Knight; Irja Knight 1963-10-27 439 Sonoma Spring Mt Road Comment
  CAS-BOT-BC224157  Eriodictyon californicum D. E. Breedlove 1980-6-28 44800 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC250013  Eriogonum fasciculatum var. foliolosum Catherine Best 1981-6-5 s.n. Sonoma Skaggs Spring Road near the Warm Springs Dam Overlook Comment
  CAS-BOT-BC259255  Eriogonum latifolium H. L. Mason 1928-7-10 4885 Sonoma Jenner Comment
  CAS-BOT-BC259262  Eriogonum latifolium P. A. Munz 1936-8-7 14305 Sonoma 2 mi. north of Bodega Comment
  UC196696  Eriogonum latifolium Charlotte M. Hoak 1912-8-8 Sonoma mouth of Russian River Russian River Comment
  CAS-BOT-BC259268  Eriogonum latifolium C. L. Hitchcock; J. S. Martin 1939-7-15 5444 Sonoma Cliffs below Bodega State Park Comment
  RSA197065  Eriogonum latifolium Noel Holmgren, James L. Reveal 1966-6-6 2648 Sonoma Just north of Ocean View. On bluff above shore line (form away from immediate coastal influence). Comment
  CAS-BOT-BC259483  Eriogonum luteolum John Thomas Howell 1929-6-30 4320 Sonoma 4 miles from Petrified Forest on road to Knights Valley Comment
  CAS-BOT-BC259466  Eriogonum luteolum R. D. Stone 1983-6-14 539 Sonoma Headwaters of Squaw Cr. drainage, S-facing slope ca. 1.2 mi. NW of Geyser Rock 1005 Comment
  CAS-BOT-BC261682  Eriogonum nudum var. nudum A. A. Heller 1902-7-8 5814 Sonoma Near Healdsburg Comment
  CAS-BOT-BC261688  Eriogonum nudum var. nudum Mary P. Wells 1985-7-7 544 Sonoma King's Ridge Road, north of Cazadero Comment
  CAS-BOT-BC253068  Eriogonum roseum Helen D. Geis 1902-8-1 s.n. Sonoma Russian River bed Comment
  UC1520694  Eriogonum ternatum R. Raiche 1985-8-10 50716 Sonoma The Cedars, N of Cazadero, headwaters of Big Austin Creek, near Laton Mine site. 371 Comment
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Oct 15 2009
  UCD101270  Eriogonum ternatum Roger Raiche 1984-6-23 RR 40234 Sonoma The Cedars, 5 miles N of Cazadero on King Ridge Road, headwaters of Big Austin Creek. Above tributary creek referred to locally as Azalea Creek (NE fork before Layton Mine bldgs.) 548 Comment
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Oct 17 2013
  SEINET11933967  Eriogonum ternatum Unknown 1984-1 40234 Sonoma The Cedars,5 mi N of Cazadero on King Ridge Rd, headwaters of Big Austin Creek 549 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
  SEINET11842952  Eriophyllum lanatum F. H. Utech 1986-1 86 -123 Sonoma 3 mi SW on Sonoma Mt. Rd from jct with CA 12, near Jack London Historical Park 250 Comment
  CAS-BOT-BC301151  Eriophyllum lanatum var. achilleoides F. G. Krauss 1893-10-8 s.n. Sonoma Krauss Ranch Comment
  CAS-BOT-BC301157  Eriophyllum lanatum var. achilleoides Roxana S. Ferris; Laura Lorraine 1961-6-14 13524 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  HSC5595  Eriophyllum lanatum var. achilleoides R. Spellenberg 1964-6-15 403 Sonoma 5 mi. W of The Geysers on road from Geyserville Comment
  UC507059  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-20 E 25 Sonoma 3.5 mi from Healdsburg (between Santa Rosa and) Comment
  CAS-BOT-BC301154  Eriophyllum lanatum var. achilleoides Greg de Nevers 1981-5-9 1111 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC301276  Eriophyllum lanatum var. arachnoideum Lewis S. Rose 1933-9-3 33354 Sonoma 2 miles w. of Petrified Forest Comment
  CAS-BOT-BC301299  Eriophyllum lanatum var. arachnoideum Peter Rubtzoff 1953-11-1 1446 Sonoma South of Guerneville (Neeley Hill area) Comment
  UC614628  Eriophyllum lanatum var. arachnoideum L. Constance 1938-4-24 2157 Sonoma 8 mi s of Fort Ross; Russian Gulch 121 Comment
  POM180623  Eriophyllum staechadifolium J. T. Howell 1930-6-8 5292 Sonoma 8.5 miles north of Bodega Bay. Comment
  UC1307394  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1955-7-16 1962 Sonoma Bennett Mt. Lake Comment
  UC1365628  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1958-4-26 Sonoma e. Sebastopol (Laguna de Santa Rosa); Laguna de Santa Rosa Comment
  CAS-BOT-BC474708  Eryngium armatum Ayzik Solomeshch 2009-5-14 s.n. Sonoma 2.3 km SE of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1 22 Comment
  HSC92211  Eryngium armatum A. T. Austin 1990-5-23 Sonoma Fort Ross State Park, FR 42 Comment
  POM179766  Eryngium armatum J. T. Howell 1930-6-8 5215 Sonoma 8 miles west of Petaluma on Bodega Road. Comment
  SBBG5184  Eryngium armatum H. and M. Dearing 1939-5-14 3355 Sonoma bluffs above the sea, Bodega State Park [Bodega Dunes State Beach] Comment
  POM287755  Eryngium armatum Lyman Benson 1930-6-18 2166 Sonoma South of Santa Rosa. 61 Comment
  SEINET3826189 Image available Erysimum concinnum Sally Walker 1983-5-12 s.n. Sonoma Goat Rock Comment
  CAS-BOT-BC402865  Eschscholzia caespitosa Catherine Best 1982-4-17 s.n. Sonoma Bohemian Hwy about 5 miles north of Occidental Comment
  SEINET6911603  Eschscholzia caespitosa W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Weedy grassland about 7.8 miles south-southeast of Annapolis; northwest Sonoma county. Comment
  JEPS51720  Eschscholzia californica W. L. Jepson 1911-4-30 4188 Sonoma near Glen Ellen; Sonoma Valley Comment
  UCD103207  Eucalyptus globulus Frederica Bowcutt 1997-7-18 2185 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  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
  JEPS9606  Euonymus occidentalis var. occidentalis Miss Mabel White Sonoma Russian R., Camp Meeker Comment
  UC635627  Euonymus occidentalis var. occidentalis H. L. Mason June 1930 5661 Sonoma mouth of Gualala R. Comment
  CAS-BOT-BC202539  Euphorbia Peter Rubtzoff 1978-9-10 9265 Sonoma Russian River at Del Rio Beach, ca. 2.5 mi. east of Healdsburg on So. Fitch Mtn. Road Comment
  CAS-BOT-BC202541  Euphorbia Peter Rubtzoff 1987-10-17 9877 Sonoma Russian River ca. 6 miles east of Guerneville Comment
  CAS-BOT-BC294704  Euphorbia Peter Rubtzoff 1969-8-29 6180 Sonoma Forest Hills, 5.5 miles east of Guerneville, at 9981 Old River Road. Comment
  JEPS117122  Euphorbia oblongata Peter Warner 2010-4-22 134 Sonoma State Hwy. 128 ~3.03 mi. (fr. N) at turnout on E side of road at metal gate, in adjacent disturbed grassland and across road, about 2 miles NW of Cloverdale. Comment
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Jul 7 2017
  CDA19933  Euphorbia oblongata S. Opbroek 2002-6-27 PDR P 092645 Sonoma Northern California; 13799 Occidental Rd, Sebastopol. 0 Comment
  SEINET9325144  Euphorbia peplus John Nelson, Wnek, R. 2000-3-8 20951 Sonoma Near Safeway Grocery, S side of Main St/River Rd (=Hwy 116) in downtown Guerneville. AC Moore Herbarium (USCH) Univ of S. Carolina Comment
  UCD142479  Euphorbia peplus C. Wistrom 1996-5-26 32 Sonoma Healdsburg, 1601 Dry Creek Road. 48 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
  RSA0056426  Festuca arundinacea Greg de Nevers 1998-6-10 11276 Sonoma Modini Mayacama Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  CAS-BOT-BC283183  Festuca californica subsp. californica G. DeNevers 1981-6-15 1543 Sonoma Along the stream down from the Rogers Apple Orchard, Pepperwood Ranch Comment
  CAS-BOT-BC283191  Festuca californica subsp. californica K. Wagnon 1939-5-14 196 Sonoma East edge of Wagnon rock quarry, five miles west of Sebastopol Comment
  CAS-BOT-BC283194  Festuca californica subsp. californica John Thomas Howell; Catherine Best; Wilma Follette; Mary P. Wells; Gordon H. True 1981-5-14 54013 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on teh west slope of Sonoma Mountain 457 Comment
  RSA123474  Festuca californica var. californica H. S. Yates 1934-4-21 3831 Sonoma 2 miles north of County Farm. 244 Comment
  UCR255651  Festuca microstachys var. pauciflora Greg de Nevers 1997-4-24 10963 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC278886  Festuca occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-14 13534 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway Comment
  UC1024771  Festuca occidentalis Leo Whitney 1935-4-14 2257 a Sonoma near Occidental Comment
  UCD66116  Festuca occidentalis Beecher Crampton 1955-6-17 2926 Sonoma State Hwy. 12, 1.6 miles west of Forestville. Comment
  UCR248743  Festuca octoflora Peter Rubtzoff 1976-6-5 8588 Sonoma North Coast Ranges, False Lake Meadow area, Annadel State Park 244 Comment
  UCD66269  Festuca roemeri P. B. Kennedy 1915-5-28 Sonoma Del Mar. Comment
  CAS-BOT-BC279078  Festuca rubra Peter Rubtzoff 1951-9-15 758 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the Upper Marsh Comment
  UCR256282  Filago gallica Peter Rubtzoff 1971-6-23 6542 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road 229 Comment
  CDA5256  Filago pyramidata var. pyramidata J. T. Howell 1976-4-26 51595 Sonoma Hills east of Geyserville on road to Geysers. 0 Comment
  POM140717  Fragaria californica A. A. Heller 1902-3-16 5074 Sonoma Russian River, Near Trenton. Comment
  CHSC63925  Fragaria chiloensis John Hale 1990-4-12 22 Sonoma 610 m. N. of Stillwater Cove. Meadow. 24 Comment
  UCD113198  Fragaria chiloensis Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-24 059 Sonoma Unit 1 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR37769  Fragaria vesca A. C. Sanders 1985-1-19 5375 Sonoma Bodega Bay, coastal bluffs behind Lucas Wharf, along the highway 15 Comment
  CAS-BOT-BC53271  Frangula californica subsp. californica Walter Knight; Irja Knight 1963-12-27 467 Sonoma Summit, Pine Flat Rd. Comment
  CAS-BOT-BC55646  Frangula purshiana Mary P. Wells 1985-7-11 553 Sonoma Pilot's Reach, the Sea Ranch Comment
  SBBG32298  Fraxinus latifolia L. S. Rose 1968-6-25 68117 Sonoma Rincon Valley, Brush Crk NE of Santa Rosa 121 Comment
  UCD122047  Fraxinus latifolia Frederica Bowcutt 1994-5-1 1777 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon S of Sonoma Creek bout 150 yards, 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 Comment
  JEPS55695  Fritillaria M. and A. Ackley 1967-4-26 Sonoma 2/3 way down from summit towards Oakville (Trinity Grade Road); Trinity Grade Road 304 Comment
  UC1084349  Fritillaria affinis G. Thomas Robbins 1937-3-25 4 Sonoma Bennett Valley, Sonoma Creek Sonoma Creek; Bennett Valley, Sonoma Creek Comment
  POM169385  Fritillaria affinis A. A. Heller, H. E. Brown 1902-3-25 5148 Sonoma Near Mark West Springs Comment
  UCD139713  Fritillaria affinis UC Davis Botany 102 Students 1993-4-17 48 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 Sugarloaf Ridge. Near group campground. Comment
  RSA304275  Fritillaria recurva James R. Shevock 1972-3-28 1485 Sonoma Highway 128, north of Cloverdale 91 Comment
  SD88433  Galium aparine Darley F. Howe 1972-4-30 Sonoma South of Bodega Bay Comment
  HSC19845  Galium aparine S. N. Wiemeyer 1962-4-20 23 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  CDA31316  Galium californicum D. G. Kelch, Ed Biffin 2010-5-3 10 .198 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  LA208415  Galium californicum John Thomas Howell; 1930-6-8 5246 Sonoma 1 mi east of Bodega Bay Comment
  POM63227  Galium divaricatum Michener, Bioletti 1892-7-1 s.n. Sonoma Hood's Peak Comment
  HSC100970  Galium muricatum Peter Warner 2011-5-26 209 Sonoma Cresta Ranch, (off Mark West Springs Rd. at Mark West Lodge), ~540 m South of Cresta Rd. 0 Comment
  UCD39139  Galium parisiense Beecher Crampton 1964-8-18 7148 Sonoma N.E. part of county. 'The Geysers', Big Sulphur Creek. Comment
  CHSC30057  Galium porrigens var. tenue Terrence Finn 1980-3-15 16 Sonoma Plant found just under Buzzard Rock. 85 Comment
  UC495528  Galium triflorum Merle Randall 1930-6-7 Sonoma Cazadero Comment
  RSA790991  Gamochaeta ustulata Peter Rubtzoff 1974-5-25 7458 Sonoma Upper Green Valley Marsh. Comment
  RSA790993  Gamochaeta ustulata Peter Rubtzoff 1963-6-22 5186 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC199062  Garrya elliptica Ida K. McClish 1928-10-1 s.n. Sonoma Near Healdsburg. Comment
  CAS-BOT-BC199068  Garrya elliptica Greg de Nevers 1987-7-10 8238 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  RSA0022353  Gastridium phleoides Peter Rubtzoff 1970-9-2 6366 Sonoma Russian River bottom at Mirabel Park. Comment
  SEINET4571745  Gastridium phleoides L. Koch 1940-4-22 837 Sonoma Grassy hills above Sulfur Creek Geysers Comment
  SEINET8718700 Image available Gastridium ventricosum Leo Koch 1940-1 837 Sonoma above Sulfur Creek Geysers Comment
  CAS-BOT-BC193255  Genista monspessulana Walter & Irja Knight 1990-5-1 6591 Sonoma Calistoga Road near junction of Porter Creek Road 182 Comment
  RSA28626  Gentiana affinis Annetta Carter, E. K. Crum 1941-6-22 1638 Sonoma 3.3 miles E of Bay (Bodega Bay). Comment
  UC1084424  Gentiana sceptrum G. Thomas Robbins 1938-6-23 268 Sonoma ca 10 mi w Santa Rosa (on Pitkin ranch, Vine Hill region); Vine Hill Comment
  SDSU7330  Geranium dissectum D. F. Howe 1963-5-22 3520 Sonoma 14 miles south of Santa Rosa on #12. 122 Comment
  UCD103335  Geranium dissectum Adam Green 1994-5-1 1784 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. S of Sonoma Creek about 125 yards 1/4 mile NW of confluence with Rattlesnake Creek, meadow in center of campground. Comment
  UCD15829  Geranium dissectum J. D. DiTomaso 1998-5-18 s.n. Sonoma Sugarloaf Ridge State Park. 430 Comment
  SEINET12183466  Geranium molle F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -181 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 485 Comment
  JEPS30830  Gilia capitata subsp. chamissonis Rimo Bacigalupi and L. R. Heckard 1962-6-19 8586 Sonoma 1/4 mi se Horseshoe Cove (at northeastern base of low hills forming Bodega Head proper); ne base of low hills Bodega Head, se of Horseshoe Cove 12 Comment
  JEPS69553  Gilia capitata subsp. chamissonis W. S. Cooper 1925-7-25 88 Sonoma Bodega Pt. Comment
  RSA178597  Gilia capitata subsp. chamissonis Roxana S. Ferris 1932-5-27 8259 Sonoma Upper Bodega Bay Comment
  SD60184  Gilia capitata subsp. chamissonis Roxana S. Ferris 1932-5-27 8259 Sonoma Sand dunes, upper 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
  RSA83145  Gilia capitata subsp. tomentosa Verne Grant, Alva Grant 1948-7-7 8599 Sonoma 3.7 miles south of Fort Ross on Hwy 1 Comment
  UC932018  Gilia tricolor subsp. tricolor Verne Grant, Alva Grant March 1946 7850 Sonoma near Cloverdale; near Cloverdale Comment
  UC124891  Gilia tricolor subsp. tricolor Katharine Brandegee May 1890 Sonoma Mt. St. Helena Comment
  UCD117977  Gilia tricolor subsp. tricolor Christine Lee 1993-4-24 106 Sonoma about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, about 2.5 air miles north of Kenwood, about 18 air miles NW of Napa. N of Sonoma Creek about 25 meters. 396 Comment
  CAS-BOT-BC266478  Githopsis diffusa Milo S. Baker 1926-1-1 237 A Local Sonoma Side canyon above Kenwood Springs Comment
  JEPS81970  Githopsis diffusa subsp. robusta Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9111 Sonoma between 1 and 1.25 mi due w Napa County line (along the Franz Valley School road) 219 Comment
  SEINET3146240  Glebionis segetum L. S. Rose 1938-9-11 38251 Sonoma Bloomfield 30 Comment
  SEINET3821488  Glebionis segetum Lewis S. Rose 1938-9-11 38251 Sonoma Bloomfield 30 Comment
  CAS-BOT-BC303750  Glebionis segetum Robert M. King 1980-7-8 8411 Sonoma Generally 2 miles N of Bodega Bay Comment
  CAS-BOT-BC227642  Glyceria Peter Rubtzoff 1964-6-24 5382 Sonoma Coleman Marsh. Comment
  UCD148471  Glyceria Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa. Comment
  UCD166292  Glyceria declinata Peter Rubtzoff 1966-5-7 5707 Sonoma North side of Hessel Road, just west of Hwy. 116. Comment
  CDA2161  Glyceria declinata H. F. McCracken 1968-4-3 Sonoma Santa Rosa district. 0 Comment
  CAS-BOT-BC282729  Glyceria elata Peter Rubtzoff 1951-6-10 204 Sonoma South of the Upper Marsh, Pitkin Marsh near Forestville Comment
  UCD66743  Glyceria leptostachya Collector Unknown 1941-7-1 Sonoma Parker Hill. Comment
  RSA94606  Glyceria leptostachya Peter Rubtzoff 1952-5-31 1120 Sonoma Pitkin Marsh, near Forestville, northern half of Lower Marsh Comment
  UCR244673  Glyceria occidentalis Peter Rubtzoff 1968-8-24 5935 Sonoma Upper Salmon Creek Marsh Comment
  CAS-BOT-BC166916  Gnaphalium chilense Peter Rubtzoff 1962-6-21 4936 Sonoma Laguna de Santa Rosa area, northeast of Graton. Comment
  CAS-BOT-BC166683  Gnaphalium chilense Peter Rubtzoff 1951-8-26 685 Sonoma Along road from East Guernewood to Vacation Beach. Comment
  CAS-BOT-BC302689  Gnaphalium palustre Peter Rubtzoff 1973-10-10 7339 Sonoma 2 miles west of Bloomfield along a tributary of Americano Creek. Comment
  CAS-BOT-BC261651  Gratiola Peter Rubtzoff 1972-4-23 6730 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  UCR279626  Gratiola ebracteata Peter Rubtzoff 1961-7-22 4664 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 363 Comment
  CAS-BOT-BC164095  Grindelia Peter Rubtzoff 1963-7-14 5205 Sonoma Laguna de Santa Rosa, E of Graton. Comment
  CAS-BOT-BC305171  Grindelia hirsutula Catherine Best 1982-8-18 s.n. Sonoma At Goat Rock Park Comment
  CAS-BOT-BC305174  Grindelia hirsutula P. A. Munz 1936-8-7 14306 Sonoma 2 mi. north of Bodega Comment
  CAS-BOT-BC305177  Grindelia hirsutula John Thomas Howell 1930-6-8 5222 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC305200  Grindelia hirsutula D. E. Breedlove 1980-6-27 44780 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC305169  Grindelia hirsutula Walter Knight; Irja Knight 1963-10-29 434 Sonoma Between Two Rock Ranch and County Line Comment
  UC535112  Grindelia hirsutula H. E. and S. T. Parks 1929-11-1 411 Sonoma Tubbs Island 0 Comment
Read comments
Oct 1 2009
  POM187850  Grindelia hirsutula var. davyi Marcus E. Jones 1931-7-5 29142 Sonoma The Geysers. Comment
  UCD85229  Hainardia cylindrica P. G. Connors 1991-6-11 145 Sonoma University of California Bodega Marine Laboratory. Bodega Head. NW corner of Laboratory building. Comment
  SEINET11689069  Hainardia cylindrica H. K. Wagnon 1989-1 1890 Sonoma adjacent to Fort Ross School's reservoir, Timber Cove 122 Comment
  CAS-BOT-BC302249  Harmonia nutans F. G. Krauss 1895-5-6 s.n. Sonoma Mountain near Franze [Franz] & Knights Valleys Comment
  UCD132741  Helenium bigelovii Charles B. Heiser Jr. 1946-5-19 1746 Sonoma Vine Hill region, Pitkin Marsh Comment
  UCSB9937  Helenium bigelovii Chisaki, Francia 1950-6-16 Sonoma Pitkin Marsh, northwest of Sebastopol, 1 mile north of Sousa Corners 60 Comment
  POM187815  Helenium bigelovii Marcus E. Jones 1931-7-5 29104 Sonoma The Geysers. Comment
  RSA94303  Helenium bigelovii Peter Rubtzoff 1951-6-9 155 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC262951  Helenium puberulum Peter Rubtzoff 1968-7-20 5927 Sonoma Upper Salmon Creek Marsh. Comment
  CAS-BOT-BC262989  Helenium puberulum Peter Rubtzoff 1970-9-3 6372 Sonoma Marsh, off west side of Highway 1, 0.7 miles southeast of Salmon Creek Crossing. Comment
  POM54893  Helenium puberulum A. A. Heller 1902-7-1 5795 Sonoma Lagoon at Sebastopol Comment
  UCSB16905  Helenium puberulum Breedlove, Dennis 1961-12-31 Sonoma At S side of mouth of Russian River 6 Comment
  UC134630  Helianthella californica subsp. californica Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  UC194163  Helianthella californica subsp. californica Michener and Bioletti 1893-6-1 Sonoma Wood's Ranch Comment
  CAS-BOT-BC314739  Helianthella californica var. californica Catherine Best 1981-5-16 s.n. Sonoma About three miles east of Sonoma on Wood Valley Road Comment
  CAS-BOT-BC314741  Helianthella californica var. californica G. De Nevers 1982-5-2 1978 Sonoma Along road on ridge above Hansel's Lake, Pepperwood Ranch Natural Preserve Comment
  SEINET1782495  Heliotropium oculatum A. A. Heller 1902-7-8 5813 Sonoma Russian river at Healdsburg. Comment
  CAS-BOT-BC305969  Helminthotheca echioides G. DeNevers 1981-6-15 1517 Sonoma Pepperwood Ranch. At the big road cut on Franz Valley Road Comment
  CAS-BOT-BC305971  Helminthotheca echioides Walter Knight; Irja Knight No date on label 120 Sonoma Blue Bell Lane, Coddingtown Comment
  UCD166266  Hemizonia Peter Rubtzoff 1970-9-3 6379 Sonoma Marsh off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek. Comment
  CAS-BOT-BC257144  Hemizonia Peter Rubtzoff 1959-6-13 4115 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC258927  Hemizonia Peter Rubtzoff 1959-9-12 4263 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC262975  Hemizonia Peter Rubtzoff 1954-8-3 1646 Sonoma Bodega Head Marsh. Comment
  UC75963  Hemizonia citrina Miss M. Alice King 1987-6-1 Sonoma Comment
  JEPS86804  Hemizonia congesta Jack and Betty Guggolz 1991-7-7 1208 Sonoma alongside a small intermittent stream about 1 1/2 mi nnw Camp Meeker Comment
  CAS-BOT-BC306163  Hemizonia congesta subsp. clevelandii Lewis S. Rose 1935-9-11 35622 Sonoma 2 mi. N. of Healdsburg 39 Comment
  UC990644  Hemizonia congesta subsp. clevelandii James I. McMurphy 1909-8-9 709 Sonoma 1 mi s Sonoma Comment
  UCSC000757  Hemizonia congesta subsp. clevelandii M. Alice King October 1896 s.n. Sonoma near Healdsburg Comment
  UC193422  Hemizonia congesta subsp. congesta H. M. Hall 1916-6-23 10241 Sonoma twelve km n Petaluma Comment
  UC65349  Hemizonia congesta subsp. congesta A. A. Heller 1902-6-4 5637 Sonoma Santa Rosa Comment
  CAS-BOT-BC306242  Hemizonia congesta subsp. congesta James I. McMurphy 1908-9-26 s.n. Sonoma Foothills east of Fulton Comment
  CAS-BOT-BC306248  Hemizonia congesta subsp. congesta James I. McMurphy 1910-6-8 701 Sonoma Summit of Sonoma to Petaluma road Comment
  UC193421  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10241 Sonoma 6 mi nw Petaluma Comment
  CAS-BOT-BC309691  Hemizonia congesta subsp. lutescens J. McMurphy 1909-8-8 s.n. Sonoma Leddy Station, between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC309697  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-8 701 b Sonoma Leddy Station between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC309716  Hemizonia congesta subsp. lutescens John Thomas Howell 1930-7-27 5411 Sonoma 4 miles north of Bodega Bay Comment
  CAS-BOT-BC309732  Hemizonia congesta subsp. lutescens Roxana S. Ferris; Laura Lorraine 1961-6-14 13546 Sonoma Junction of Occidental Road with Facendini Lane Comment
  CAS-BOT-BC309683  Hemizonia congesta subsp. lutescens Marian L. Campbell 1920-8-1 s.n. Sonoma Monte Rio Comment
  CAS-BOT-BC309694  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-9 714 -B Sonoma 4-1/2 mi. S of Santa Rosa Comment
  CAS-BOT-BC309705  Hemizonia congesta subsp. lutescens Catherine Best 1981-8-22 s.n. Sonoma Morelli Lane about 2 miles northeast of Occidental Comment
  CAS-BOT-BC309710  Hemizonia congesta subsp. lutescens H. M. Hall 1931-5-28 13104 Sonoma Bodega Bay Comment
  UC897703  Hemizonia congesta subsp. lutescens Milo S. Baker 5718 Sonoma Comment
  UC990587  Hemizonia congesta subsp. lutescens James I. McMurphy 1910-6-8 Sonoma e; where road enters hills Comment
  CAS-BOT-BC309955  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1929-10-26 4539 Sonoma 7 1/2 miles from Santa Rosa on road to Petrified Forest Comment
  UC1199371  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1935-8-18 14744 Sonoma Knights Valley North Coast Ranges, Knights Valley 152 Comment
  UC495618  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1930-9-1 9173 Sonoma Knight's Valley North Coast Ranges Comment
  UC990617  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-8-8 705 Sonoma near Kenwood Comment
  CAS-BOT-BC309938  Hemizonia congesta subsp. luzulifolia Walter Knight; Irja Knight; J. T. H. 1984-9-26 5234 Sonoma 5.9 mi. up Cavedale Rd. Comment
  CAS-BOT-BC309962  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-7 699 Sonoma Callistoga [Calistoga] Road, 7 miles from Santa Rosa Comment
  RSA216761  Hemizonia lutescens Robert F. Hoover 1969-8-31 11567 Sonoma Adobe Road and Casa Grande Road near Petaluma. Comment
  RSA81605  Hemizonia lutescens James I. McMurphy 1909-8-9 711 Sonoma Hills between Sonoma and Petaluma. Comment
  RSA227201  Heracleum maximum Peter Rubtzoff 1964-5-20 227201 Sonoma Brooks Gulch Marsh. Comment
  HSC100953  Hesperevax sparsiflora var. brevifolia Peter Warner 2011-5-13 192 Sonoma Jenner Headlands, Dairy Field, northern area, S of Johnson Ranch, ~300 m E of Hwy. 1. 121 Comment
  UC31907  Hesperevax sparsiflora var. sparsiflora Alice King 1897-6-1 Sonoma Healdsburg Comment
  UCR261633  Hesperevax sparsiflora var. sparsiflora Ann Howald 2003-5-15 2334 B Sonoma Inner North Coast Ranges, Sonoma Mountains, south end, lower east slope, c. 0.2 mile southeast of intersection of Lewis Creek and Felder Creek 151 Comment
  OBI70563  Hesperocyparis macnabiana D. G. Kelch 2007-5-13 7 .284 Sonoma Cavedale Rd 518 Comment
  SD40684  Hesperocyparis macnabiana Carl B. Wolf, E. R. Johnson 1934-10-18 Sonoma Head of Hooker Canyon, 4.7 miles east of Sonoma-Kenwood Road 550 Comment
  SD175774  Hesperocyparis sargentii D. G. Kelch 2006-6-24 06 323 Sonoma On serpentine along Harrison Grade. 167 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
  UCR49205  Hesperolinon L. F. LaPre 1987-7-30 s.n. Sonoma Socrates Mine, c. 9 mi. ENE of Geyserville 976 Comment
  CAS-BOT-BC361350  Hesperolinon spergulinum Greg de Nevers 1997-4-24 10960 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  RSA74068  Hesperolinon spergulinum Milo S. Baker 1947-7-15 11867 Sonoma 2 miles NE of Occidental, along Harrison Grade Comment
  UCD95457  Hesperomecon linearis Laurie E. Miller 1974-5-11 158 Sonoma Bodega Head outside Bodega Marine Life Refuge. 6 Comment
  CAS-BOT-BC149828  Heteromeles arbutifolia Walter Knight; Irja Knight 1963-12-27 461 Sonoma Summit, Pine Flat Rd. Comment
  CAS-BOT-BC251213  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  UC496422  Heuchera micrantha var. erubescens Merle Randall 1930-6-7 Sonoma Redwood Forest Comment
  CAS-BOT-BC424435  Heuchera pilosissima Catherine Best 1985-5-15 1091 Sonoma Coleman Valley Road about 3 miles W of Occidental Comment
  RSA0063040  Heuchera pilosissima H. C. Cantelow 1941-6-7 s.n. Sonoma Near Bodega Bay. On State Hwy 1. Comment
  SEINET12216686  Heuchera pilosissima F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -153 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  SEINET3817294 Image available Heuchera pilosissima Lewis S. Rose 1939-5-14 39119 Sonoma 2 miles east of Bodega Bay. 30 Comment
  CAS-BOT-BC319705  Hieracium albiflorum Mary P. Wells 1984-5-24 271 Sonoma Annadel State Park, Santa Rosa Comment
  UCD160127  Hieracium albiflorum James A. Neilson Jr. 1973-6-6 3559 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  CAS-BOT-BC319710  Hieracium albiflorum Marian L. Campbell 1920-8-1 s.n. Sonoma Monte Rio Comment
  RSA178030  Hierochloe occidentalis R. F. Thorne 1965-4-19 34316 Sonoma 1/2 mile from Green Valley Road 152 Comment
  SD134002  Hoita macrostachya Greg de Nevers, Buddy Goatcher 1987-6-30 8228 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa, at spring 99 Comment
  UC1084457  Hoita orbicularis G. Thomas Robbins 1937-6-5 219 Sonoma 10 mi w Santa Rosa; Vine Hill region, Pitkin Ranch Comment
  CAS-BOT-BC280786  Holcus lanatus G. DeNevers 1981-5-30 1364 Sonoma Pepperwood Ranch. Shore of Pippindale Pond Comment
  CAS-BOT-BC280795  Holcus lanatus Peter Rubtzoff 1951-6-16 244 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  UC38610  Holcus lanatus J. Burtt Davy 1896-7-24 Sonoma below Duncan's Mills; below Duncan's Mills Comment
  CAS-BOT-BC164689  Holocarpha Peter Rubtzoff 1963-8-24 5245 Sonoma 2.5 miles north of Sebastopol Comment
  UCD150125  Holocarpha virgata 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
  JEPS128300  Holodiscus discolor Roger Raiche 2010-6-16 020 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC315812  Holozonia filipes James I. McMurphy 1909-8-18 704 Sonoma Kenwood Comment
  UCR244742  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 361 Comment
  UCR279627  Holozonia filipes Peter Rubtzoff 1961-7-22 4661 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 363 Comment
  CAS-BOT-BC166738  Holozonia filipes Peter Rubtzoff 1971-6-23 6546 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  SD133785  Holozonia filipes Rimo Bacigalupi, P. Rubtzoff 1976-8-6 Sonoma Knights Valley, off south side of Bavarian Lion Company ranch road, 1-1.5 miles west of its junction with Franz Valley Road(0.4 mi S of Hwy128 Comment
  UCD85403  Hordeum brachyantherum Hursh 1919-5-13 X 3244 Sonoma Santa Rosa. Comment
  CAS-BOT-BC285008  Hordeum depressum L. R. Abrams 1918-4-27 6923 Sonoma Independence School near Healdsburg Comment
  UCD85936  Hordeum murinum subsp. glaucum Frederica Bowcutt 1984-6-24 465 Sonoma Salt Point State Park. Approx. 20 miles north of Jenner and 80 miles south of Fort Bragg. Old home site near existing barn along road to Gerstle Cove parking lot. Northwest of Gerstle Cove approx. 1/4 mile. West of Highway 1. 30 Comment
  CAS-BOT-BC282022  Hordeum murinum subsp. leporinum Peter Rubtzoff 1959-6-6 4100 Sonoma Willow Crane Marsh Comment
  UCD160310  Hordeum murinum subsp. leporinum James A. Neilson Jr. 1975-5-23 3196 Sonoma Big Sulphur Creek. Abril property. (Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC536156  Horkelia californica P. A. Munz 1936-8-7 14309 Sonoma Six miles north of Bodega Comment
  UC70428  Horkelia tenuiloba Milo S. Baker may 1899 Sonoma near the Laguna (Forest Hill Rd); Forestville Comment
  UCD106011  Hosackia gracilis Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-7-5 126 Sonoma Unit 35-C Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD106021  Hosackia gracilis P. B. Kennedy 1915-5-28 s.n. Sonoma Northern part of county, Del Mar. Comment
  UCD106023  Hosackia gracilis P. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC293672  Hypericum Peter Rubtzoff 1969-7-21 6115 Sonoma Guerneville Marsh, Pocket Canyon area. Comment
  CAS-BOT-BC400997  Hypericum anagalloides Peter Rubtzoff 1954-7-29 1610 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC400994  Hypericum anagalloides Carl B. Wolf 1927-9-2 1349 Sonoma One mile south of the Gualala River on coast road Comment
  JEPS128179  Hypericum concinnum Roger Raiche 2001-5-17 022 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  CAS-BOT-BC316682  Hypochaeris glabra John H. Thomas 1976-6-15 18319 Sonoma Southern end of Sea Ranch northeastern part of county about 7 miles south of Gualala 30 Comment
  UC1300922  Hypochaeris glabra Helen K. Sharsmith 1963-5-25 5481 Sonoma 121 Comment
  UCD133345  Hypochaeris glabra P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  SEINET3875273  Iris douglasiana James Faro 1962-4-14 20 Sonoma Salt Point Ranch, about 5 miles North of Fort Ross on Highway 1.; 0 Comment
  RSA48724  Iris fernaldii Lee W. Lenz 1949-5-2 14427 Sonoma Santa Rosa - Calistoga Road, 0.5 mile from junction with road to Mark West Springs 610 Comment
  CAS-BOT-BC133678  Iris longipetala Peter Rubtzoff 1962-6-19 4925 Sonoma Occidental Marsh 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
  POM320439  Iris missouriensis Lynne Hayden 1970-4-5 68 Sonoma Fort Ross, Route 1 76 Comment
  CAS-BOT-BC376406  Isoetes Greg de Nevers 1997-5-30 11010 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Three Tree Hill. 400 Comment
  POM203033  Isoetes howellii J. T. Howell 1934-3-27 11805 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  SD134069  Isolepis carinata Peter Rubtzoff 1963-5-26 5140 Sonoma Bennett Mountain Lake, vernally wet, partially shaded ground. Comment
  CAS-BOT-BC112575  Isolepis cernua Peter Rubtzoff 1954-7-26 1560 Sonoma Lower Salmon Creek Marsh. Comment
  CHSC42880  Isolepis cernua Mary M. Hektner 1975-8-14 229 Sonoma Shell Beach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET4170787 Image available Isolepis cernua W. L. Jepson 1931-7-19 15945 Sonoma Just north of Salmon Creek Comment
  UCR250390  Juncus balticus Peter Rubtzoff 1957-5-11 3333 Sonoma Occidental Marsh Comment
  CAS-BOT-BC164383  Juncus balticus subsp. ater Peter Rubtzoff 1970-5-16 6225 Sonoma Sonoma: Five miles north of Sears Point Comment
  UCD141316  Juncus bolanderi Mary M. Hektner 1976-8-26 265 Sonoma Unit 28 Owner;s Map, Sea Ranch, near State Highway 1. Comment
  SEINET10533021  Juncus bufonius Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-9 Conrad 7082 Sonoma On n-facing grassy clay bank, .6 mile w of sonoma-napa co. Line on hwy. 121. 61 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
  UCR279617  Juncus effusus var. pacificus Peter Rubtzoff 1959-6-20 4177 Sonoma Willow Creek Marsh 9 Comment
  CAS-BOT-BC173632  Juncus hemiendytus var. hemiendytus Peter Rubtzoff 1972-4-23 6733 Sonoma Vernal pool, 4.25 mi. W of Glen Ellen on Bennett Valley Road Comment
  UCR279616  Juncus hesperius Peter Rubtzoff 1959-6-20 4178 Sonoma Willow Creek Marsh 9 Comment
  CDA39264  Juncus phaeocephalus T. C. Fuller 1958-1-29 s.n. Sonoma Horn Ave., south of Santa Rosa. 0 Comment
  CAS-BOT-BC320542  Kickxia Peter Rubtzoff 1971-8-9 6633 Sonoma Laguna, Chileno Valley. Comment
  UCD86025  Koeleria macrantha Beecher Crampton 1957-7-22 4396 Sonoma 1/4 mile north of Fort Ross, State Hwy. 1. 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
  UCD158720  Lactuca serriola Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. At the end of the road leading to headwaters of Big Sulphur Creek. Ca. 2 mi southeast of the junction of Pine Flat Rd. and Socrates Mine Rd. Elevation estimated by label maker. 975 Comment
  CAS-BOT-BC340661  Lactuca serriola Mary P. Wells 1985-9-2 611 Sonoma Bed of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC341707  Lagophylla ramosissima John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53963 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  SEINET10589342  Lagurus Alan A. Beetle 1941-7-8 Beetle 2856 Sonoma 1 mile north of Steward Point, open coastal bluffs. Assoc. Sedum, Phacelia. Comment
  CAS-BOT-BC173572  Lamiaceae Peter Rubtzoff 1958-9-1 3964 Sonoma Guerneville region, Vacation Beach, near Guerneville. Russian River. Comment
  UC1594208  Lasthenia burkei L. Huntington 1990-5-12 260 Sonoma n side of Laguna de Santa Rosa; Sebastapol 18 Comment
  RSA0008548  Lasthenia burkei Peter Rubtzoff 1963-6-6 5165 Sonoma Laguna de Santa Rosa, east of Graton Comment
  CAS-BOT-BC385627  Lasthenia californica A. A. Heller; H. E. Brown 1902-4-11 5270 Sonoma Bodega Bay Comment
  UC76020  Lasthenia californica subsp. bakeri Milo S. Baker 1899-5-6 Sonoma near Sebastopol Comment
  UC174195  Lasthenia californica subsp. californica Katharine Brandegee 1905-6-1 Sonoma between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC324413  Lasthenia californica subsp. macrantha Mrs. H. C. Cantelow 1936-1-26 1102 Sonoma Bodega Bay Comment
  JEPS104665  Lasthenia conjugens Sarah Lynch and Geoff Monk 2003-5-1 Sonoma Martinelli Ranch off Stage Gulch Road at Petaluma Road, Petuluma 85 Comment
  CAS-BOT-BC355520  Lasthenia glaberrima John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54020 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-BC355534  Lasthenia glaberrima Peter Rubtzoff 1961-5-24 4602 Sonoma Upper Stemple Creek Marsh Comment
  UC1224622  Lasthenia glaberrima Peter H. Raven 1963-4-28 18254 Sonoma 4.7 mi s El Verano (on Arnold Dr.) Comment
  CAS-BOT-BC355526  Lasthenia glaberrima Peter Rubtzoff 1972-4-25 6734 Sonoma Vernal pool 4.25 mi. W of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC355531  Lasthenia glaberrima Peter Rubtzoff 1966-5-7 5712 Sonoma Todd Road, 1.4 mi. from Hwy. 116 and 0.6 mi. from Llado Rd. Comment
  CAS-BOT-BC355537  Lasthenia glaberrima Lois E. James; L. Beane 1949-5-16 1947 Sonoma About 3 mi. S. of Healdsburg. Comment
  RSA47550  Lasthenia glaberrima L. Beane, Lois E. James 1949-5-16 1947 Sonoma About 3 miles S of Healdsburg Comment
  CAS-BOT-BC352789  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  POM203664  Lasthenia glabrata subsp. glabrata J. T. Howell 1933-4-1 10925 Sonoma Petaluma Comment
  UC2061430  Lasthenia gracilis Rachael L. Olliff Yang 2017-5-2 20 Sonoma Pepperwood Preserve, Double ponds area, about 200 m North of the road. Comment
  CAS-BOT-BC370852  Lasthenia minor John Thomas Howell 1931-4-18 6420 Sonoma mouth of Salmon Creek, 2 miles n. of Bay Comment
  CAS-BOT-BC370893  Lasthenia minor Alice Eastwood 1901-4-1 s.n. Sonoma Bodega Comment
  CAS-BOT-BC164394  Lathyrus Peter Rubtzoff 1974-4-17 7363 Sonoma Upper Green Valley Marsh area. Comment
  JEPS86809  Lathyrus Jack and Betty Guggolz 1991-5-20 1140 Sonoma 97 Comment
  UCD106205  Lathyrus cicera Botany 102 Students 1994-6-12 1843 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 35 yards, N of Adobe Canyon Rd. Trail head for Pony Gate trail near kiosk and visitor center. 411 Comment
  UCD106225  Lathyrus grandiflorus H. S. Reed 1937-5-31 755 Sonoma Bodega. Comment
  CAS-BOT-BC204993  Lathyrus jepsonii var. californicus Alice Eastwood; John Thomas Howell 1936-5-19 2523 Sonoma 2 miles n. of Windsor Comment
  UCD106467  Lathyrus vestitus Frederica Bowcutt 1984-6-23 441 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. West of Highway 1. Along bluff trail north of Gerstle Cove about 1/2 mile. 15 Comment
  HSC95596  Lavandula stoechas Gordon Leppig 2000-4-22 1311 Sonoma Fuller Mtn. Rd. near summit of Fuller Mtn. Comment
  UC89158  Layia chrysanthemoides Michener and Bioletti 1892-5-1 1233 a Sonoma Shellville Comment
  JEPS24288  Layia chrysanthemoides G. Thomas Robbins with Hsuan Keng and Erika Amstutz 1959-4-3 3973 Sonoma along shallow drainage ditch by State Highway 37 (about .5 mi e of big Bend and .25 mi w of Sonoma Creek crossing); Sonoma Valley 3 Comment
  RSA786927  Layia chrysanthemoides Carrie A. Herd 1982-4-25 83 Sonoma Crane Creek Regional Park Comment
  UC584226  Layia platyglossa J. Clausen 1935-5-24 1094 Sonoma 6.5 mi s Jenner Comment
  CAS-BOT-BC183607  Leersia Peter Rubtzoff 1965-10-17 5660 Sonoma Forest Hills (5.5 miles E of Guerneville). Comment
  CAS-BOT-BC274323  Leersia Peter Rubtzoff 1987-9-27 9851 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville Comment
  RSA0034026  Leersia Peter Rubtzoff 1987-9-27 9851 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  CAS-BOT-BC274365  Leersia oryzoides Greg de Nevers 1992-6-26 10191 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek. Franz Creek 91 Comment
  CAS-BOT-BC274358  Leersia oryzoides John Thomas Howell 1946-8-17 22880 Sonoma The Laguna just east of Sebastopol Comment
  CAS-BOT-BC210095  Lemna Peter Rubtzoff 1974-4-6 7349 Sonoma Kenwood Marsh. Comment
  UCD148506  Lemna gibba Peter Rubtzoff 1965-11-9 5666 Sonoma Stony Point Marsh. Comment
  POM311075  Lemna minor Leo Koch 1940-6-12 1011 Sonoma In hills behind Fountaingrove Vineyard. 3 miles N of Santa Rosa along Hwy 101. Comment
  UCR255074  Lemna minor Peter Rubtzoff 1961-10-23 4783 Sonoma Laguna de Santa Rosa area northeast of Graton 20 Comment
  CAS-BOT-BC183613  Lemna minor Peter Rubtzoff 1965-11-9 5669 Sonoma Willow Creek Marsh. Comment
  UCD166177  Lemna valdiviana Peter Rubtzoff 1969-7-5 6105 Sonoma Pond 5.25 mi. NE of Penngrove near Lichau Road. 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
  UCD167420  Lepidium didymum Peter Rubtzoff 1958-8-9 3840 Sonoma Laguna de Santa Rosa N of Sebastopol (nr. Occidental Rd.) 20 Comment
  CAS-BOT-BC177112  Lepidium didymum Peter Rubtzoff 1960-5-15 4333 Sonoma Fife Creek Marsh Comment
  CAS-BOT-BC89739  Lepidium latifolium Walter Knight; Irja Knight 1963-8-9 199 Sonoma North side Lakeville Highway at Petaluma Fertilizer office - Petaluma (waif). Comment
  CAS-BOT-BC89741  Lepidium latifolium John Thomas Howell 1966-6-2 41550 Sonoma South of Schellville near Black Point road. Comment
  RSA247447  Lepidium latifolium Peter Rubtzoff 1969-8-26 6158 Sonoma On River Road. 3 miles W of Fulton. Comment
  POM144015  Lepidium nitidum A. A. Heller, H. E. Brown 1902-3-14 5054 Sonoma Near Santa Rosa Comment
  CAS-BOT-BC12757  Lepidium oxycarpum J. W. Congdon 1880-4-1 s.n. Sonoma Petaluma. Comment
  CAS-BOT-BC12970  Lepidium strictum John Thomas Howell; Catherine Best; Wilma Follette; Mary P. Wells 1982-4-28 54673 Sonoma Bouverie Audubon Preserve, about 1.5 mile east of Glen Ellen near Stuart Creek. 137 Comment
  CAS-BOT-BC273995  Leptochloa fusca subsp. fascicularis Catherine Best 1987-7-2 1291 Sonoma At the intersection of Todd and Llano Rds. Comment
  UCSB5189  Leptosiphon androsaceus Keator, Glenn 1959-4-2 Sonoma 5.5 miles up Cavedale road near its end; 6.6 miles from Agua Caliente Comment
  SBBG115929  Leptosiphon parviflorus J. Adams, J. Weick 1993-5-8 253 Sonoma ca. 11 air mi E of Santa Rosa;, ca. 2.5 air mi NE of Kenwood. In Adobe Cyn, N of Sugarloaf Ridge and 1 mi S of Red Mt; T7N R7W NE 1/4 of SW 1/4 S22 Comment
  JEPS87253  Lessingia arachnoidea Jack and Betty Guggolz 1992-8-29 1335 Sonoma 1 1/2 mi nw of Camp Meeker 45 Comment
  CAS-BOT-BC324190  Lessingia hololeuca J. W. Compton 1880-9-1 s.n. Sonoma Petaluma Comment
  JEPS20604  Lessingia hololeuca J. Burtt Davy 1897-9-18 4031 Sonoma between San Rafael and Petaluma Comment
  JEPS128329  Lessingia ramulosa Roger Raiche 2009-8-23 039 .09 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCR255875  Leucanthemum vulgare Greg de Nevers 1994-4-1 10517 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD64309  Leymus condensatus P. B. Kennedy 1924-6-1 Sonoma Del Mar. Comment
  CAS-BOT-BC376325  Leymus triticoides Greg de Nevers 1993-7-27 10476 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa E base of Telegraph Hill 400 Comment
  CAS-BOT-BC371402  Ligusticum apiifolium Greg de Nevers 1998-7-25 11302 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek, just upstream of bridge at Mark West Lodge 400 Comment
  CAS-BOT-BC451706  Lilaea scilloides Greg de Nevers 1997-5-30 11011 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC451693  Lilaea scilloides Peter Rubtzoff 1951-8-5 606 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC451700  Lilaea scilloides Alice Eastwood 1921-4-24 10362 Sonoma Santa Rosa Comment
  CAS-BOT-BC451715  Lilaea scilloides D. E. Breedlove 1983-5-4 58697 Sonoma Pepperwood Ranch W of Knights Valley. Comment
  RSA73967  Lilaea scilloides Milo S. Baker 1952-4-20 12400 Sonoma Western outskirts of Sonoma, along 5th street. Comment
  CAS-BOT-BC130835  Lilium pardalinum J. W. Congdon 1880-6-21 s.n. Sonoma Sebastopol Road Comment
  CAS-BOT-BC132997  Lilium rubescens Alice Eastwood; John Thomas Howell 1939-6-11 7434 Sonoma W.F. Booth Ranch, Knights Valley Comment
  UC1057485  Limnanthes douglasii G. Thomas Robbins 1938-4-15 259 Sonoma 6-7 mi w Santa Rosa (along road to Graton) Comment
  RSA155473  Limnanthes douglasii L. S. Rose 1962-6-1 62061 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  SEINET6670409  Limnanthes douglasii M. S. Baker s.n. Sonoma Between Santa Rosa and Stony Point Comment
  RSA184883  Limnanthes douglasii subsp. douglasii L. S. Rose 1965-4-4 65020 Sonoma Sonoma. 24 Comment
  RSA262357  Limnanthes douglasii subsp. douglasii Lynn Gould 1962-4-20 57 Sonoma 1 mile east of Sonoma. 24 Comment
  SEINET5556953  Limnanthes douglasii var. nivea H. S. Gentry 1962-1 19701 Sonoma Oakville. Comment
  CAS-BOT-BC45942  Limnanthes vinculans Mrs. A. E. Alexander 1946-4-23 s.n Sonoma Between Bodega and Petaluma Comment
  CAS-BOT-BC45949  Limnanthes vinculans Peter Rubtzoff 1958-5-3 3607 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC45950  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5689 Sonoma North side of Hessel Rd. just west of Hwy. 116 Comment
  UC1331758  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5699 Sonoma Todd Road 1.4 mi from Hwy. 116 (0.6 mi from Llano Road); ; Todd Road, near Llano Road, Sonoma Co. Comment
  RSA800892  Limosella acaulis Peter Rubtzoff 1966-4-17 5675 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  JEPS58144  Linanthus parviflorus Joseph Andorfer Ewan 1935-5-13 9258 Sonoma Wright School on Sebastopol road Comment
  JEPS23256  Linaria vulgaris G. Thomas Robbins 1958-8-11 3924 Sonoma w of the town of Bodega (along Estero Lane a dirt road about 2 mi s of State Highway 1); Estero Lane Comment
  UCD110565  Linum bienne Chris Bowen 1974-6-1 141 Sonoma Near Pacific Reach, Unit 24, Sea Ranch, near State Highway 1. Comment
  UCD81453  Lithocarpus densiflorus M. Wiesendanger 1927-5-5 729 Sonoma Kenwood Springs. Comment
  JEPS46181  Lithophragma affine Eleanor Armstrong 1933-4-15 734 Sonoma Bodega Hill 18 Comment
  CAS-BOT-BC437153  Lithophragma heterophyllum J. W. Congdon 1883-4-1 19 Sonoma Petaluma Santa Rosa Comment
  RSA177918  Lithophragma heterophyllum R. F. Thorne 1965-4-20 34365 Sonoma 3 miles up Cavedale Rd. Ca 5 miles N of Sonoma. Comment
  CAS-BOT-BC342498  Logfia gallica John Thomas Howell 1930-6-8 5236 Sonoma Bodega Road 3 miles east of Valley Ford Comment
  CAS-BOT-BC342502  Logfia gallica D. E. Breedlove 1980-6-28 44810 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD167965  Logfia gallica James Neilson 1977-6-12 3920 Sonoma Mayacmas Mountains, McMicking Ranch, well site 2. (McMicking Ranch is also known as Santa Angelina Ranch and is in the vicinity of Knights Valley and Coon Creek.) Comment
  UC176579  Lolium multiflorum C. F. Bruggemann 1914-7-8 Sonoma Santa Rosa Comment
  UC573668  Lolium multiflorum H. S. Yates 1937-5-30 6552 Sonoma 1 1/2 mi e Occidental; Sebastopol Quad. Comment
  UCD66200  Lolium multiflorum R. Tofsrud 1941-6-1 Sonoma Santa Rosa, Odd Fellows Cemetery. Comment
  UCD66201  Lolium multiflorum Collector Unknown 1941-3-1 Sonoma Fremont School, Santa Rosa. Comment
  UCD66417  Lolium perenne Mary M. Hektner; Sue Dakuzaku 1974-6-3 18 A Sonoma Sea Ranch, near State Highway 1. Comment
  UCD84596  Lolium perenne Frederica Bowcutt 1996-5-24 2162 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Approx. 1.2 air miles S of Red Mountain. Adobe Canyon just NW of Sonoma/Rattlesnake Creek confluence. 365 Comment
  CAS-BOT-BC269191  Lolium temulentum A. A. Heller 1902-6-10 5679 Sonoma Santa Rosa Comment
  UCD66660  Lolium temulentum David L. Morgan 1956-5-13 Sonoma On Watmaugh Road, 1/2 mile W of junction of Arnold Drive. Comment
  SEINET7067344  Lomatium californicum A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles east of Windsor on Porter Creek Road. Coordinate datum: NAD27. UTM Zone 10, 526145mE, 4266921mN. Comment
  SD130502  Lomatium californicum F. Almeda, G. DeNevers 1981-4-28 4907 Sonoma Approximately I(c) mile from main gate to Pepperwood Ranch Natural Preserve just off Franz Valley Road Comment
  SEINET7040129  Lomatium dasycarpum A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  JEPS128223  Lomatium dasycarpum subsp. tomentosum Roger Raiche 2000-5-4 059 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SJSU10970  Lomatium nudicaule T. A. Wayne 1962-4-21 Sonoma Bennett Valley by Bennett Valley Rd 3 mi S of Santa Rosa Comment
  JEPS86814  Lomatium repostum Jack and Betty Guggolz 1991-5-4 1127 Sonoma <firebrake> on s. side Bradford Mt. (1 mi. w. of Dry Creek Rd.) 341 Comment
  CAS-BOT-BC217810  Lomatium repostum Alice Eastwood 1923-5-9 11740 Sonoma Hills above Calistoga Comment
  CAS-BOT-BC361356  Lomatium repostum Greg de Nevers 1997-4-16 10942 Sonoma Moon Mountain Road Area burned Sept. 1996 Comment
  UC1076677  Lomatium utriculatum C. Ritchie Bell 1952-3-19 1247 Sonoma top of Larksur Rock Bodega; , Larkspur Rock Comment
  SD241724  Lomatium utriculatum Dean Wm. Taylor 1994-5-4 14213 Sonoma Ca. 2 miles SW of Occidental; at junction of Bittner Road and Joy Road (Camp Meeker 7.5'Q) 249 Comment
  CAS-BOT-BC240645  Lonicera hispidula Walter Knight; Irja Knight 1963-9-15 294 Sonoma Los Alamos Rd., Santa Rosa Comment
  SEINET12329227  Lonicera hispidula var. vacillans W. Knight, Knight, I. 1984-1 5114 Sonoma Gualda Point Regional Park Comment
  CAS-BOT-BC244009  Lonicera involucrata var. ledebourii Peter Rubtzoff 1964-6-3 5345 Sonoma Bodega Bay Marsh Comment
  SEINET12327831  Lonicera ledebourii F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -148 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  CAS-BOT-BC294701  Lotus Peter Rubtzoff 1971-5-8 6438 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  CAS-BOT-BC304423  Lotus Peter Rubtzoff 1970-5-16 6226 Sonoma Five miles north of Sears Point. Comment
  UC15740  Lotus aboriginus Michener and Bioletti 1892-7-6 Sonoma Gualala Comment
  POM258887  Lotus angustissimus Alice Eastwood, John T. Howell 1938-6-11 6267 Sonoma Near Stillwater Cove. Comment
  SD113608  Lotus angustissimus Darley F. Howe 1962-7-2 3573 Sonoma 0.9 mile north of junction with #12 on #1. Comment
  POM18310  Lotus benthamii A. A. Heller 1903-4-25 7458 Sonoma Fort Ross Comment
  UC75639  Lotus formosissimus Miss Emma Lobenstein 1906-1-1 Sonoma Valley Ford Comment
  UC80972  Lotus formosissimus Michener and Bioletti Jun 1893 Sonoma Kenwood Comment
  SEINET7067239  Lotus heermannii A. G. Vestal 1947-5-13 s.n. Sonoma Base of dunes, Bodega Head. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  SEINET12166761  Lotus humistratus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -235 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  UC1057479  Lotus oblongifolius var. oblongifolius G. Thomas Robbins 1937-5-23 215 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch); Vine Hill Region Comment
  SEINET3729647  Lotus purshianus A. A. Heller 1941-8-8 16278 Sonoma West of Petrified Forest Comment
  POM18955  Lotus unifoliolatus A. A. Heller 1902-6-24 5754 Sonoma Near Burkes Sanitarium Comment
  RSA18653  Lotus wrangelianus A. A. Heller 1903-4-25 6599 Sonoma Fort Ross Comment
  RSA32862  Lotus wrangelianus A. A. Heller 1937-5-1 16175 Sonoma Bodega Bay Comment
  UCD65927  Ludwigia hexapetala B. J. Grewell 2006-11-10 06- 90 -LU Sonoma Russian River at Veteran's Memorial Park, Healdsburg. Collection upstream of dam, east bank at canoe/kayak launch area. 24 Comment
  UCD66046  Ludwigia hexapetala Robert McKee; Greg Woods 2006-7-31 06- 55 -LU Sonoma Russian River upstream of Wohler Bridge @ Sonoma County Water Agency collectors. 10 Comment
  CAS-BOT-BC258921  Ludwigia palustris Peter Rubtzoff 1958-8-9 3858 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC258924  Ludwigia palustris Peter Rubtzoff 1958-7-19 3758 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC249320  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-7-4 1527 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC201286  Lupinus Milo S. Baker 1948-7-3 12059 Sonoma Millstation Rd. 4/10 mi from Gravestein [Gravenstein] Hiwy and 1.4 mi from Church on the Main St. in Sebastopol. North side of Millstation Rd. near Post box 35 Route 1 Comment
  CAS-BOT-BC201295  Lupinus Charles Piper Smith 1946-4-26 46233 Sonoma Highway 1 at Coast Russian River Bridge Comment
  CDA36944  Lupinus adsurgens CDFA Staff 2008-1 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  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
  UCD151110  Lupinus adsurgens James A. Neilson Jr. 1974-6-1 2763 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UC1299160  Lupinus albifrons Freed W. Hoffman 1947-2-28 758 Sonoma road from Great Eastern Quicksilver Mines to Austin's Ranch at top of grade near Guerneville; North Coast Ranges, near Guerneville Comment
  LA205175  Lupinus arboreus J. A. Ewan; 1935-5-12 9231 Sonoma 1.5 mi. W of Bodega on Bodega Bay road Comment
  RSA0070145  Lupinus arboreus Daisie Huang 2006-5-30 06053016 Sonoma Bodega Marine Laboratory. In parking lot. 3 Comment
  HSC14798  Lupinus bicolor R. Spellenberg, D. Sutherland, , A. Sylvester 1966-3-26 1338 Sonoma 7 mi. W of Big Geysers along Sulphur Creek Rd. Comment
  UCD167410  Lupinus bicolor James Neilson 1977-3-25 3853 Sonoma Mayacmas Mountains, about 3 miles south Pine Flat on Pine Flat Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCR248892  Lupinus bicolor Peter Rubtzoff 1969-5-3 6020 Sonoma Laguna de Santa Rosa, east of Sebastopol 21 Comment
  POM186932  Lupinus densiflorus var. aureus Marcus E. Jones 1931-7-5 28954 Sonoma The Geysers. Comment
  RSA34035  Lupinus densiflorus var. palustris A. A. Heller 1938-5-14 15091 Sonoma Near Two Rocks. Comment
  UC15856  Lupinus formosus Ivar Tidestrom 1895-6-14 Sonoma Petaluma Comment
  UC1084419  Lupinus formosus var. formosus G. Thomas Robbins 1937-5-23 184 Sonoma between Santa Rosa and Sebastopol near Wright School Comment
  JEPS77259  Lupinus latifolius Robert M. Lloyd 1963-4-24 2396 Sonoma 16.0 mi from State Highway 12 on road to Oakdale; road to Oakdale 274 Comment
  SEINET12165889  Lupinus micranthus F. H. Utech 1988-1 88 -196 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh and adjoining meadows 10 Comment
  SEINET5790384 Image available Lupinus microcarpus Marcus E. Jones 1882-1 3329 Sonoma Duncan's Mills Comment
  CDA27500  Lupinus microcarpus var. densiflorus T. C. Fuller 1966-6-2 14858 Sonoma East side of Pacific Coast Highway 1, 0.2 mile south of junction with Petaluma-Valley Ford Road, 1 mile east of Valley Ford. 0 Comment
  UCD108752  Lupinus microcarpus var. densiflorus R. Tofsrud 1948-5-1 s.n. Sonoma Cloverdale. Comment
  SD64433  Lupinus microcarpus var. microcarpus Darley F. Howe 1966-6-2 Sonoma 5 miles south of Bodega Bay Comment
  UCD108851  Lupinus microcarpus var. microcarpus Freed W. Hoffman 1947-4-18 664 Sonoma roadside one mile north of Cloverdale. Comment
  SEINET10837773  Lupinus nanus subsp. nanus P. Rubtzoff 1974-5-18 Rubtzoff 7411 Sonoma Todd road 1.4 mi from hwy 116 and .6 mi from llano rd. Vernally wet, now Drying meadow. Comment
  UC82220  Lupinus pachylobus Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  CAS-BOT-BC320548  Lupinus polycarpus Peter Rubtzoff 1969-5-11 6045 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC207258  Lupinus sericatus John Thomas Howell 1935-5-5 12610 Sonoma Near summit of Trinity P.O. Road, Mt. Hood Range Comment
  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
  UCD109676  Lupinus variicolor John M. Tucker 1957-4-7 3288 Sonoma Chaney Gulch, beside road to Bodega Bay, ca. 3 miles east of the community of Bodega Bay. Comment
  UCD160116  Luzula James A. Neilson Jr. 1973-6-3 2973 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-BC210025  Luzula Peter Rubtzoff 1958-5-17 3680 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) Comment
  CHSC20576  Luzula macrantha Robert A. Schlising 1962-3-31 2129 Sonoma Coast Ranges. Ca 2 mi NE of Kenwood along road in to Sugarloaf Ridge. Comment
  RSA0015986  Lythrum hyssopifolia Carl B. Wolf 1927-9-2 1351 Sonoma Along the old coast road 1 mile south of the Gualala River in the north end of Sonoma Co. 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-BC166732  Madia Peter Rubtzoff; Nancy Harrison 1974-7-13 7669 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166955  Madia Peter Rubtzoff 1969-8-29 6173 Sonoma Salmon Creek, ca. 0.5 miles upstream from Hwy. 1. Comment
  UC523537  Madia elegans David D. Keck 1933-11-6 2650 Sonoma 4 mi n of Occidental Comment
  UC990649  Madia elegans James I. McMurphy 1909-8-10 716 Sonoma West Santa Rosa Comment
  CAS-BOT-BC344032  Madia elegans Peter Rubtzoff 1951-8-26 675 Sonoma Hills south of Guerneville (Neeley Hill area) Comment
  CAS-BOT-BC344038  Madia elegans CNPS Milo Baker Chapter 1985-8-20 601 Sonoma Rincon Valley, Santa Rosa Comment
  RSA81535  Madia elegans subsp. elegans James I. McMurphy 1908-9-27 s.n. Sonoma 2 miles south of Fulton Comment
  CAS-BOT-BC344553  Madia exigua Catherine Best 1981-5-2 s.n. Sonoma Stoetz Lane about 4 miles north of Occidental 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
  CDA8260  Madia madioides G. D. Barbe 1982-5-27 3620 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  CAS-BOT-BC345206  Madia sativa John Thomas Howell 1930-6-8 5220 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC345215  Madia sativa John Thomas Howell 1932-9-17 10764 Sonoma Near Kenwood Comment
  CAS-BOT-BC345256  Madia sativa Peter Rubtzoff 1951-8-4 580 Sonoma Pitkin Marsh, near Forestville. Opening south of the Upper Marsh Comment
  UC990650  Madia sativa James I. McMurphy 1909-8-8 703 Sonoma electric RR station between Santa Rosa and Sebastopol; Leddy Comment
  UCD134339  Madia sativa Ann F. Johnson 1979-6-19 s.n. Sonoma Bodega Dunes State Park. 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
  UCD107560  Marah oregana M. Wiesendanger 1927-5-5 726 Sonoma Kenwood Springs. Comment
  CAS-BOT-BC348218  Matricaria discoidea Peter Rubtzoff 1974-4-17 7381 Sonoma Upper Green Valley Marsh area Comment
  CAS-BOT-BC348221  Matricaria discoidea G. DeNevers 1981-6-8 1506 Sonoma Pepperwood Ranch. In Pippindale Garden Comment
  UCD166176  Medicago lupulina Peter Rubtzoff 1969-6-22 6102 Sonoma Forest Hills, 5.5 miles east of Guerneville at 9981 Old River Road. Comment
  RSA0009775  Medicago polymorpha Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma 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
  UCD87314  Melica geyeri Virginia Bufford 1937-5-10 454 Sonoma Larkspur Rock, Bodega Canyon. Comment
  SBBG29007  Melica geyeri B. Crampton 1967-5-15 Sonoma Sonoma-Napa County line; 4 mi NW of Calistoga, St Hwy 128 Comment
  UC971700  Melica geyeri Leo Koch 1940-4-24 843 Sonoma 1 mi n of 2.5 mi jct from Kenwood and Glen Ellen Glen Ellen; Bennett Valley Comment
  UCD87347  Melica geyeri R. Tofsrud 1942-4-1 279 Sonoma Along Mark West road about 3 mi. above the Springs resort. Comment
  UC34142  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-22 6001 Sonoma Guerneville Comment
  UCD88610  Melica subulata B. Crampton 1955-6-17 2962 Sonoma 2 miles east of Fort Ross. Comment
  CAS-BOT-BC262550  Melica torreyana John Thomas Howell; Catherine Best; Gordon H. True 1982-5-6 54695 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC262556  Melica torreyana Catherine Best 1981-5-2 s.n. Sonoma Bohemian Hwy 3 miles north of Occidental Comment
  RSA184996  Melica torreyana L. S. Rose 1965-4-4 s.n. Sonoma 1 mile north of Sonoma. 61 Comment
  UC903706  Melica torreyana Milo S. Baker 1947-5-7 11753 Sonoma Rose Butte summit Hood Mt. (Macartney Ranch, e of residence near Grant Line) 228 Comment
  UCD89114  Melica torreyana Gerry North 1993-4 5 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. Across road from Goodspeed trailhead pullout. On bank edge above Sonoma Creek. 213 Comment
  UCD89219  Melica torreyana H. S. Yates 1936-5-16 5616 Sonoma California Forest and Range Experiment Station. 3 miles N.W. of Camp Meeker. 60 Comment
  POM348173  Melilotus albus Christopher Davidson 1977-6-17 5877 Sonoma State Highway 12 ca. 3 miles west of Guerneville, along Russian River 15 Comment
  RSA784568  Melissa Peter Rubtzoff 1973-8-28 7277 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC164086  Mentha Peter Rubtzoff 1954-8-11 1686 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC166905  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region. Vacation Beach, near Guerneville; Russian River. Comment
  RSA784596  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region: Russian River. Vacation Beach, near Guerneville. Comment
  UCR244668  Mentha Peter Rubtzoff 1960-9-14 4553 Sonoma Laguna de Santa Rosa area northeast of Graton (near Laguna Road) 30 Comment
  CAS-BOT-BC164675  Mentha Peter Rubtzoff 1963-8-17 5229 Sonoma Russian River Mouth Marsh. Comment
  RSA784597  Mentha Peter Rubtzoff 1962-7-4 4965 Sonoma Healdsburg region: Russian River. Fitch Mts. Grove, 2 mi E of Healdsburg. Comment
  RSA785672  Mentha Peter Rubtzoff 1960-9-17 4567 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  UC456136  Mentha canadensis I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  RSA785664  Mentha pulegium Peter Rubtzoff 1955-9-24 2157 Sonoma Guerneville Marsh. Comment
  RSA94355  Mentha pulegium Peter Rubtzoff 1951-7-14 458 Sonoma Pitkin Marsh near Forestville, between the Upper and the Lower marshes Comment
  RSA785149  Mentha rotundifolia Peter Rubtzoff 1973-8-28 7276 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166691  Mentha spicata Peter Rubtzoff 1968-8-24 5932 Sonoma Upper Salmon Creek Marsh. Comment
  UCR244615  Mentha spicata Peter Rubtzoff 1955-8-28 2112 Sonoma Forestville Marsh 71 Comment
  CAS-BOT-BC166968  Mentha spicata Peter Rubtzoff 1973-9-9 7315 Sonoma Kenwood Marsh. Comment
  RSA784546  Mentha spicata Peter Rubtzoff 1955-8-28 2112 Sonoma Forestville Marsh. Comment
  RSA784547  Mentha spicata Peter Rubtzoff 1955-10-12 2166 Sonoma Duncans Mill Marsh. Comment
  RSA784550  Mentha spicata Peter Rubtzoff 1961-8-24 4708 Sonoma Fife Creek Marsh. Comment
  RSA785144  Mentha spicata Peter Rubtzoff 1973-8-28 7275 Sonoma Upper Green Valley Marsh. Comment
  UCR244650  Mentha suaveolens Peter Rubtzoff 1973-9-9 7316 Sonoma Kenwood Marsh 120 Comment
  CDA31024  Mentzelia laevicaulis D. G. Kelch, Troy McGregor 2010-8-22 10 .361 Sonoma Geyser Peak Rd along Sulfur Creek nr historic bridge. Comment
  JEPS42867  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1921-9-8 9429 Sonoma Russian River, Healdsburg Comment
  CAS-BOT-BC322609  Micropus amphibolus Herbert L. Mason 1934-4-28 8081 Sonoma Jensen's Ranch, head of Dohrman Creek four miles west of Healdsburg Comment
  SEINET11807614  Micropus californicus var. californicus F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -187 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 630 Comment
  SEINET11601909 Image available Microseris bigelovii P. Kamb, F. Chisaki 1952-6-21 2304 Sonoma Fort Ross Comment
  CAS-BOT-BC348856  Microseris douglasii subsp. douglasii Greg de Nevers 1993-4-11 10366 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 304 Comment
  SD6295  Mimetanthe pilosa Michener, Bioletti 1891-9-7 1686 b Sonoma Shellville Comment
  RSA0025392  Mimulus Peter Rubtzoff 1972-5-25 6764 Sonoma Laguna, Chileno Valley. Comment
  SEINET10614150  Mimulus aurantiacus Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2618 Sonoma Fort Ross State Park, along State Highwa 1, between Fort Ross and Jenner above Pacific Ocean. 50 miles northwest of San Francisco. 30 Comment
  UC672457  Mimulus grandis H. L. Mason June 1930 5651 Sonoma mouth Gualala River Comment
  UC353818  Mimulus inodorus Milo S. Baker 1928-6-28 3191 b Sonoma Pitkin's Marsh Vine Hill District Comment
  UC26956  Mimulus kelloggii H. N. Bolander 1864-1 3951 Sonoma near Pine Mt.; The Geysers Comment
  UCD151248  Mimulus layneae James A. Neilson Jr. 1974-4-24 2732 Sonoma Mayacmas Mountains. Little Geysers Creek. 731 Comment
  CAS-BOT-BC174580  Minuartia californica Mary P. Wells 1894-4-20 s.n. Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  POM161866  Modiola caroliniana Rimo Bacigalupi 1928-6-18 1904 Sonoma Beach at mouth of Salmon Creek, 2 miles N of Bodega Bay. Comment
  POM85787  Monardella lanceolata var. lanceolata Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan's Mills. Comment
Read comments
Dec 18 2017
  JEPS87251  Monardella purpurea Jack and Betty Guggolz 1992-3-12 1242 Sonoma w side Rincon Ridge; Santa Rosa 213 Comment
  UC2035939  Monardella purpurea Robert F. Hoover 1938-6-14 3609 Sonoma 3 miles west of Graton on road to Occidental Comment
  UC634860  Monardella villosa subsp. franciscana H. L. Mason 1928-7-10 4883 Sonoma Near Ocean, Jenner Comment
  CAS-BOT-BC314177  Monardella villosa subsp. subserrata C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  CAS-BOT-BC314206  Monardella villosa subsp. subserrata Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Rd., 18 miles E of Stewart's Point. Comment
  CHSC68015  Monardella viridis Jack Guggolz; Betty Guggolz 1992-7-25 1332 Sonoma Ca. 0.6 mi SSW of Bradford Mountain, 4.5 mi S of Geyserville. 292 Comment
  UC1784120  Monardella viridis Ethel Crum 1930-7-13 816 Sonoma Mt. St. Helena, S shoulder Comment
  SEINET12320782  Monardella viridis W. Knight, Knight, I. 1981-1 3958 Sonoma 2.3mi up Cavedale Road from State Hwy #12 Comment
  CAS-BOT-BC166932  Montia Peter Rubtzoff 1974-4-17 7371 Sonoma Upper Green Valley Marsh area. Comment
  UCD144662  Montia fontana Frederica Bowcutt; Jolie Hendricks, Jeff Kennedy 1994-5-1 1792 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood, and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 125 yds. 1/4 mile NW of confluence of Rattlesnake Creek, meadow in center of campground. 350 Comment
  UCD110297  Morella californica P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  UCD86410  Muhlenbergia andina Freed W. Hoffman 1947-8-30 575 Sonoma Layton Mine, Austin Creek. Comment
  UCD86411  Muhlenbergia andina Freed W. Hoffman 1947-5-30 1700 Sonoma Layton Mine, Austin Creek. Comment
  CAS-BOT-BC376363  Myosotis discolor Greg de Nevers 1990-3-26 9655 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Weimar Flat. 400 Comment
  RSA227203  Myosotis discolor Peter Rubtzoff 1962-6-19 4917 Sonoma Occidental Marsh. Comment
  SEINET12332729  Myosotis discolor W. Knight, Knight, I. 1985-1 6327 Sonoma Cooper's Grove, Sonoma Mt. Rd near Matanzas Creek Comment
  RSA97982  Myosotis latifolia N. F. Sommer 1954-5-15 81 Sonoma State Highway 12, at park on north edge of Occidental. 30 Comment
  UCD166497  Myosurus Peter Rubtzoff 1966-4-17 5672 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UC5274  Myrica californica J. Burtt Davy 1896-3-14 1670 Sonoma Fort Ross Comment
  RSA799987  Myriophyllum brasiliense Peter Rubtzoff 1973-10-10 7334 Sonoma Laguna de Santa Rosa ca. 1 mi east-southeast of Sebastopol. Comment
  CAS-BOT-BC456193  Najas guadalupensis Peter Rubtzoff 1971-9-1 6666 Sonoma Spring Creek Reservoir area. Comment
  RSA543177  Najas guadalupensis Peter G. Connors 1992-6-18 289 Sonoma Button Ranch (prospective Univ. Calif. Natural Reserve, pond #15 of Connor s numbering system). Between Walker Road and Roblar Road, 5 km north of Two Rock. 20 km from coast between Bodega Bay and Petaluma 122 Comment
  CAS-BOT-BC260072  Nassella lepida G. DeNevers 1981-6-8 1503 Sonoma Pepperwood Ranch. N arm of Garrison Canyon Comment
  RSA115461  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma US Highway 101, 3 miles south of Healdsburg. Comment
  UC1153820  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma US Hwy 101 3 mi s Healdsburg (banks of railway cut) Comment
  CAS-BOT-BC60527  Nasturtium officinale John H. Thomas 1976-6-18 18363 Sonoma About 4.6 miles west of Warm Springs Dam, between Skaggs Springs and Geyserville. Comment
  UCD116102  Nasturtium officinale Terri Williamson 1990-5-20 65 Sonoma Bayflat Rd. Bodega Bay. 3 Comment
  CAS-BOT-BC60524  Nasturtium officinale Dorothy Scherer 1997-5-7 103 Sonoma Southeast of largest Sag Pond, Fort Rose State Historic Park. 106 Comment
  RSA0065153  Navarretia Greg de Nevers 1997-8-17 11075 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. Oak Hill Ranch. 100 Comment
  JEPS86361  Navarretia cotulifolia Jack and Betty Guggolz 1988-4-30 921 Sonoma Todd Road Preserve, close to w end of preserve, on both sides of the n fence Rancho Llano de Santa Rosa Comment
  UCD160967  Navarretia heterandra James A. Neilson Jr. 1975-7-8 3378 Sonoma Mayacmas Mountains. Socrates Mine Road, near summit. (Elevation and coordinates estimated by label maker.) 975 Comment
  CDA390  Navarretia heterodoxa D. G. Kelch 2003-7-14 3 .38 Sonoma Cavedale Road. Comment
  SD7675  Navarretia heterodoxa M. Bioletti 1891-1 Sonoma Hords Peak Comment
  CAS-BOT-BC232688  Navarretia pubescens James McMurphy 1909-5-29 s.n. Sonoma Canyon near Geyserville Comment
  UC631638  Navarretia squarrosa G. Thomas Robbins 1939-7-4 272 Sonoma near Graton Comment
  CDA38609  Navarretia squarrosa A. Smith & C. Morgan 2012-7-12 PDR# 1604317 Sonoma Vicinity of Annapolis. 0 Comment
  UCD37159  Navarretia squarrosa Beecher Crampton 1957-7-22 4364 Sonoma Sonoma County, Sonoma Coast State Park, 8.2 miles north of Stewart's Point. Comment
  JEPS70518  Navarretia viscidula F. T. Bioletti 1892-5-31 Sonoma Shellville Comment
  SEINET8729376 Image available Navarretia viscidula Helen K. Sharsmith 1952-1 4178 Sonoma Stewartt's Point road 12.2 miles west of Skagg's Spring. 579 Comment
  UC1069145  Nemophila heterophylla E. Armstrong 1934-3-26 950 Sonoma 2 mi n Camp Meeker; Sebastopol Quad., n of Camp Meeker 121 Comment
  UC67243  Nemophila heterophylla M. Baker May 1899 Sonoma near Laguna; near the Laguna Comment
Read comments
Feb 16 2007
  UCD23401  Nemophila heterophylla Wesley Ebert 1977-4-9 18 Sonoma Pale blue flowers with white center. In rich moist humus. Shaded by Umbellularia californica and Quercus agrifolia, but getting some afternoon exposure. On east facing slope. 6000 Soldiers Ln., Penngrove. On west side of Sonoma Mtn. 457 Comment
  CHSC23124  Nemophila menziesii Robert A. Schlising 1962-3-31 2110 Sonoma In pastured field. Comment
  UC1057474  Nemophila menziesii G. Thomas Robbins 1940-3-21 289 Sonoma 2-3 mi se Windsor (Pleasant Avenue Road and Chalk Hill Road); se of Windsor 91 Comment
  UC24235  Nemophila menziesii J. Burtt Davy 1896-3-15 1673 Sonoma near Fort Ross; near Fort Ross Comment
  UC67144  Nemophila menziesii Milo S. Baker 1898-4-23 617 Sonoma Santa Rosa Creek Canyon Comment
  UC24256  Nemophila menziesii var. atomaria W. A. Setchell March, 1898 Sonoma Cloverdale 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
  UCD120253  Nemophila menziesii var. menziesii Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 70 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. 381 Comment
  UC606948  Nemophila parviflora L. Constance 1938-4-24 2153 Sonoma 8 mi s Fort Ross; Russian Gulch, s of Fort Ros 121 Comment
  UC65022  Nemophila parviflora M. L. Baker 1898-4-3 15 Sonoma betw Guerneville and Cazadero; betw Guerneville and Cazadero Comment
  RSA0034040  Nicotiana Peter Rubtzoff 1986-9-29 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA0057976  Nicotiana Greg de Nevers 1997-10-17 11106 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Hansel's corral. 100 Comment
  CAS-BOT-BC157975  Nicotiana Peter Rubtzoff 1961-8-24 4699 Sonoma Fife Creek Marsh, in creek bed Comment
  UC111229  Nicotiana acuminata var. multiflora W. A. Setchell 1906-9-3 Sonoma near Monte Rio Comment
  SACT001614  Notholcus lanatus M. Wiesendanger 1927-5-5 Sonoma Comment
  UCD110164  Notholithocarpus densiflorus Frederica Bowcutt; Jeff Kennedy and Jolie Henricks 1994-5-1 1765 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa; about 18 air miles NW of Napa; about 1.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge along the Goodspeed Trail about 200 yards from the trail head on Adobe Canyon Rd and just E of Bear Creek about 5 yards N of confluence w/ Sonoma Creek. 198 Comment
  HSC8113  Notholithocarpus densiflorus var. densiflorus F. Demostene 1966-4-4 20 Sonoma 1 mi. W of Healdsburg Comment
  UC161225  Nuphar lutea subsp. polysepala V. King Chesnut Jul 1 1887-Aug 1 1887 Sonoma Santa Rosa Comment
  CAS-BOT-BC400124  Nuphar polysepala Peter Rubtzoff 1958-7-26 3813 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC400121  Nuphar polysepala Peter Rubtzoff 1951-7-8 417 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  CAS-BOT-BC400127  Nuphar polysepala Mary P. Wells 1984-7-20 368 Sonoma Sagpond east of Timber Ridge Road near the air strip. The Sea Ranch Comment
  CAS-BOT-BC140456  Oemleria cerasiformis G. DeNevers 1981-4-1 601 Sonoma E of road, in Leslie Creek Comment
  POM232044  Oenanthe sarmentosa Roxana S. Ferris 1937-8-18 9376 Sonoma mouth of Salmon Creek on Bodega Bay. Comment
  CAS-BOT-BC251251  Oenothera Peter Rubtzoff 1960-5-18 4383 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC361300  Olea europaea Greg de Nevers 1990-9-30 9682 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa, by Double Culverts 457 Comment
  CAS-BOT-BC376284  Olea europaea Greg de Nevers 1995-5-9 10723 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In quarry by Ward House 487 Comment
  RSA34066  Orthocarpus faucibarbatus A. A. Heller 1928-5-14 15090 Sonoma Just east of the town of Bodega. Comment
  SEINET12270158  Orthocarpus faucibarbatus Unknown 1936-1 13418 Sonoma near Healdsburg Comment
  NY90845  Orthocarpus faucibarbatus var. albidus D. D. Keck 1935-6-15 3375 Sonoma 3 mi. S of Russian River mouth. Comment
  RSA239768  Orthocarpus faucibarbatus var. albidus Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1102 Sonoma Fort Ross State Park. Comment
  POM182702  Orthocarpus faucibarbatus var. albidus D. D. Keck 1931-4-1 995 Sonoma 2 miles north of Sears Point (9 miles south of Sonoma) 10 Comment
  UCD110761  Oxalis corniculata Lloyd M. Harwood 1964-4-20 s.n. Sonoma Santa Rosa. Comment
  CDA34796  Oxalis pes-caprae Peter Warner 2010-3-29 123 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  CDA7164  Oxalis pes-caprae Plane/S. Thomas 2008-2-26 PDR# 1481679 Sonoma Kenwood, 11011 Sonoma Hwy 0 Comment
  HSC16713  Oxalis pes-caprae S. N. Wiemeyer 1962-4-13 9 Sonoma 2.1 mi. N of Jct. of Calistoga Rd. and Hwy. 12 274 Comment
  UC35989  Packera eurycephala var. eurycephala H. N. Bolander 1864-1 3963 Sonoma at the Geysers Geysers Comment
  CAS-BOT-BC227648  Panicum Peter Rubtzoff; Nancy Harrison 1978-5-20 9186 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  UC479421  Panicum acuminatum var. acuminatum Marcus E. Jones, A. M. 1931-7-5 29210 Sonoma The Geysers Comment
  CAS-BOT-BC253774  Panicum capillare Peter Rubtzoff 1956-9-14 2862 Sonoma Russian River bottom, Vacation Beach, near Guerneville Comment
  CAS-BOT-BC253771  Panicum capillare Catherine Best 1984-8-18 1039 Sonoma Near the pond on Stoetz Lane, about 3 miles NE of Occidental Comment
  CAS-BOT-BC253824  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 487 Comment
  CAS-BOT-BC253860  Panicum miliaceum Mary P. Wells 1984-7-7 361 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  UC39250  Panicum miliaceum subsp. miliaceum E. M. Smith 1898-8-9 Sonoma Kenwood Comment
Read comments
Mar 30 2009
  SEINET3277114 Image available Panicum thermale Leo Koch 1940-4-22 825 Sonoma Slopes around Sulfur Creek Geysers, east of Cloverdale, Inner North Coast Ranges. Comment
  UCD18203  Parentucellia latifolia Joe Ditomaso 2001-5-9 s.n. Sonoma Bodega Bay Marine Lab, near entrance to research housing facility. Comment
  CDA31308  Parentucellia viscosa D. G. Kelch, Ed Biffin 2010-5-3 10 .209 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  CHSC59824  Parentucellia viscosa Herb McLane 1980-4-21 5 Sonoma W of U. S. 101 and n 20 ft of Healsburg Ave. Comment
  UC984865  Parentucellia viscosa L. Beane and Lois E. James 1949-5-16 1963 Sonoma about 2 mi s Cloverdale Comment
  CAS-BOT-BC154998  Paspalum Peter Rubtzoff 1971-8-31 6662 Sonoma Todd Road, near Stony Point Road. Comment
  UCD88734  Paspalum dilatatum Mary M. Hektner 1974-7-10 145 B Sonoma along State Highway 1, just off Leeward Road, Unit 28 Owners' Map, Sea Ranch. Comment
  RSA118963  Paspalum distichum L. S. Rose 1956-8-20 56147 Sonoma San Antonio Creek, Highway 101 3 Comment
  CAS-BOT-BC366898  Passiflora citrina Greg de Nevers 1997-12-10 11109 Sonoma Fulton Comment
  RSA786926  Paxistima myrsinites Carrie A. Herd 1982-3-27 36 Sonoma Hwy. 128, 32.2 mi. S. of junction w/Philo-Greenwood Rd., side of road Comment
  CAS-BOT-BC69303  Pellaea andromedifolia Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  UC1238912  Penstemon heterophyllus var. heterophyllus Freed W. Hoffman 1947-8-4 1419 Sonoma Mt. St. Helena North Coast Ranges 609 Comment
  UCD124236  Penstemon heterophyllus var. heterophyllus Frederica Bowcutt; Joy Keeney, Adam Green 1994-5-21 1809 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 miles northwest of Napa. Along Meadow trail appx. 3/4 mi from trailhead. 396 Comment
  NY601785  Penstemon heterophyllus var. purdyi H. L. Mason 1934-4-28 8071 Sonoma Head of Dohrman Creek, Jensen's Ranch Comment
  CAS-BOT-BC245723  Penstemon newberryi var. sonomensis Rimo Bacigalupi 1920-5-30 s.n. Sonoma Summit of Mt. St. Helena, Lake-Sonoma Co. Comment
  CAS-BOT-BC328001  Pentachaeta alsinoides Alice Eastwood 1921-4-24 10367 Sonoma Santa Rosa Comment
  UC35607  Pentachaeta alsinoides F. T. Bioletti 1893-5 Sonoma Comment
  RSA0059040  Pentagramma triangularis Ira L. Wiggins 1932-3-12 5761 Sonoma Fence row between Knights Valley and Franz Valley. Comment
  OBI59451  Perideridia gairdneri subsp. gairdneri L. Constance, T. I. Chuang 1965-2-1 3766 Sonoma Marsh on Atascadero Creek 1 mi NW of Graton. 183 Comment
  UC1329520  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1967-9-16 5883 Sonoma Upper Marsh Pitkin Marsh (southern part, near Forestville) Comment
  UCD151298  Perideridia kelloggii James A. Neilson Jr. 1974-7-25 2896 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  RSA97466  Perideridia kelloggii F. W. Peirson 1925-8-8 6343 Sonoma 5 miles south of Santa Rosa Comment
  CAS-BOT-BC413651  Persicaria amphibia Peter Rubtzoff 1971-9-3 6701 Sonoma Spring Creek Reservoir area Comment
  CAS-BOT-BC413654  Persicaria amphibia Peter Rubtzoff 1966-8-26 5812 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC413657  Persicaria amphibia Peter Rubtzoff 1963-7-6 5197 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of Guerneville Rd. crossing Comment
  CAS-BOT-BC418895  Persicaria hydropiperoides Greg de Nevers 1987-7-10 8237 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  SD123635  Persicaria hydropiperoides Peter Rubtzoff 1960-9-14 4526 Sonoma Laguna de Santa Rosa east of Graton, (betw. Occidental and Guerneville rds.) Comment
  CAS-BOT-BC419120  Persicaria lapathifolia Peter Rubtzoff 1956-9-14 2888 Sonoma Vacation Beach, near Guerneville Comment
  CAS-BOT-BC330278  Petasites frigidus var. palmatus Alice S. M. McKenzie 1975-3-15 s.n. Sonoma Coast between Russian and Gualala Rivers. Fort Ross gulch beside Calif State Hwy #1. Comment
  SBBG16283  Phacelia bolanderi H. and M. Dearing 1939-5-15 3391 Sonoma Gualala River near Stewarts Pt Comment
  UC726925  Phacelia bolanderi A. A. Heller 1940-5-10 15603 Sonoma near bridge spanning the Gualala River (on road between Stewart Point and Skagg's Springs) Comment
  CDA40384  Phacelia distans T. C. Fuller 1958-5-24 4020 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  JEPS128279  Phacelia distans Roger Raiche 2005-4-22 016 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC24390  Phacelia egena F. T. Bioletti 1892-1 Sonoma Sonoma Comment
  POM127624  Phacelia imbricata subsp. imbricata Milo S. Baker 1898-8-23 s.n. Sonoma Santa Rosa Canon [Canyon] Comment
  RSA428197  Phacelia ramosissima var. montereyensis E. A. Purer 1932-7-21 16262 Sonoma Bodega Bay. Comment
  CAS-BOT-BC258847  Phalaris angusta Peter Rubtzoff 1962-6-19 4921 Sonoma Sonoma County Marshes. Occidental Marsh Comment
  UCD105400  Phalaris aquatica Frederica Bowcutt 1994-6-25 1927 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. Brushy Peak Trail about 1/2 mi from Gray Pine Trail. 609 Comment
  UCD160753  Phalaris aquatica James A. Neilson Jr. 1975-5-23 3216 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  CDA32602  Phalaris californica P. B. Kennedy 1919-5-16 Sonoma Del Mar. 0 Comment
  UCD88874  Phalaris lemmonii A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3580 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  CAS-BOT-BC250745  Phalaris paradoxa John Thomas Howell; Walter Knight; Irja Knight 1987-6-4 6243 Sonoma Todd Road Preserve 24 Comment
  UCD89374  Phalaris paradoxa Beecher Crampton 1957-7-11 4295 Sonoma Along State Hwy. 1, 1.4 miles SE of Bodega Bay. Comment
  UCD89379  Phalaris paradoxa Beecher Crampton 1959-6-16 5369 Sonoma 0.2 miles E of Occidental. Comment
  CAS-BOT-BC260876  Phleum pratense Peter Rubtzoff 1951-7-8 402 Sonoma Lower part of the Upper Marsh, Pitkin Marsh near Forestville Comment
  SEINET12330326  Phlox speciosa Unknown 1985-1 50169 Sonoma W of Healdburg, Dry Crk area, ridge W side of Dry Creek Valley, N of Dorman Canyon on Bradford Mt 244 Comment
  UC1520699  Phlox speciosa subsp. nitida R. Raiche 1985-4-6 50169 Sonoma w of Healdsburg (ridge w side of Dry Creek Valley, n of Dorman Canyon to Bradford Mt. area); Dry Creek Area, Dry Creek Valley 243 Comment
  UC327  Phyllospadix scouleri Milo S. Baker 1899-6-28 Sonoma near mouth of Russian River Comment
  UCD138370  Phyllospadix scouleri P. G. Connors 1993-6-6 316 Sonoma Bodega Head and Dunes. Horseshoe Cove. Comment
  UCD108160  Pickeringia montana E. Frost 1996-5-26 24 Sonoma Mt. St. Helena, 150 yards in along hiking trail. 609 Comment
  UC1134141  Pinus attenuata J. B. Spring 1932-7-3 95 Sonoma 2/5 mi sw Veeder Mountain; Napa Quadrangle 609 Comment
  CAS-BOT-BC78334  Pinus attenuata Elsa G. Ruckert 1960-3-12 19 Sonoma 1/2 mile from junction of Highway 12 on [Triniti] Trinity Road 335 Comment
  SEINET3560620 Image available Pinus muricata James Montgomery 1969-8-13 83751 a Sonoma Along Route 1, 9 miles north of Ft. Ross. 61 Comment
  SEINET3874232 Image available Pinus muricata Ralph R. Wilson 1939-7-25 439 Sonoma North of Ft. Ross.; 0 15 Comment
  UC496428  Piperia candida Merle Randall 1930-6-7 Sonoma Cazadero Redwood Forest Comment
  JEPS87245  Pisum sativum Jack and Betty Guggolz 1991-5-20 1139 Sonoma about 1 mi s Asti (on w side of Highway 101) 97 Comment
  JEPS78945  Pityopus californicus Edward Lee 1936-6-7 2203 Sonoma South ridge, fire trail, Bohemian Trail Comment
  UC1044488  Pityopus californicus Mary L. Bowerman 1954-6-27 4334 Sonoma old mill site ca 3 mi e Fort Ross Comment
  UCR244646  Plagiobothrys Peter Rubtzoff 1969-5-3 6012 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastopol 21 Comment
  UCR244647  Plagiobothrys Peter Rubtzoff 1969-5-3 6015 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastopol 21 Comment
  CAS-BOT-BC166762  Plagiobothrys Peter Rubtzoff 1971-7-23 6618 Sonoma Laguna, Chileno Valley. Comment
  UC1277974  Plagiobothrys bracteatus B. Crampton 1957-7-11 4312 Sonoma 1.4 mi se Bodega Bay (ditch along State Hwy 1) Comment
  UC1601345  Plagiobothrys bracteatus Milo S. Baker 1898-5-7 629 Sonoma Glen Ellen Comment
  RSA620969  Plagiobothrys bracteatus Peter Rubtzoff 1962-6-8 4889 Sonoma Bennett Mountain Lake Comment
  UC881317  Plagiobothrys bracteatus Milo S. Baker 1927-5-8 2141 b Sonoma summit Bennett Val. Road Comment
  UCD33795  Plagiobothrys collinus var. californicus Beecher Crampton 1973-5-5 8927 Sonoma Sonoma County, Sonoma Coast State Park at Carmet. Comment
  UCD120854  Plagiobothrys leptocladus Mary M. Hektner 1976-4-3 233 -A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS80989  Plagiobothrys reticulatus Edward Lee with William Setchell 1936-6-8 2225 Sonoma near entrance of disturbed redwood forest; Bohemian Grove Comment
  UC1057462  Plagiobothrys stipitatus G. Thomas Robbins 1937-5-23 185 Sonoma near Wright School (along road between Santa Rosa and Sebastopol) Comment
  UC881350  Plagiobothrys stipitatus Alice Eastwood 1921-4-24 10261 Sonoma Santa Rosa Comment
  UC353903  Plagiobothrys stipitatus var. micranthus Milo S. Baker 1927-5-8 2141 a Sonoma summit of Bennett Valley Road Comment
  UCD121046  Plagiobothrys undulatus Frederica Bowcutt 1984-6-23 443 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. West of Highway 1, approx. 1/3 mile north of Gerstle Cove. Salt Point State Park. 15 Comment
  UCR279881  Plagiobothrys undulatus Peter Rubtzoff 1971-7-23 6618 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 70 Comment
  UCD166496  Plantago Peter Rubtzoff 1965-8-16 5596 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA177988  Plantago erecta Robert F. Thorne 1965-4-20 34342 Sonoma Top of Parker Hill ( N end of Parker Hill Road). ca. 3 miles N of Santa Rosa 244 Comment
  UCD124486  Plantago erecta Robert F. Thorne 1965-4-20 34342 Sonoma top of Parker Hill (north end of Parker Hill Road), ca. 3 miles north of Santa Rosa. 152 Comment
  UC1125647  Plantago maritima var. californica H. S. Yates 1934-4-21 3808 Sonoma near Bodega Port; Duncan Mills Quad. 15 Comment
  UC4551  Platanthera leucostachys F. T. Bioletti 1892-1 Sonoma Point Arena Comment
  SEINET3854582 Image available Platystemon Lewis S. Rose 1933-5-9 33157 Sonoma Bodega Bay. Comment
  CAS-BOT-BC92123  Platystemon californicus Walter Knight; Irja Knight 1963-8-13 178 Sonoma Horseshoe Cove. Comment
  CAS-BOT-BC92126  Platystemon californicus George H. Mallory 1920-3-29 s.n. Sonoma East side of Rincon Valley 6 miles from Santa Rosa. Comment
  CAS-BOT-BC376252  Plectritis Greg de Nevers 1993-4-11 10369 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. North slope, in Bald Hills 304 Comment
  SEINET12333745  Plectritis ciliosa H. K. Wagnon 1989-1 1846 Sonoma Spring Lake Park & environs, adjacent to Montgomery Drive 67 Comment
  POM59709  Plectritis ciliosa subsp. ciliosa A. A. Heller, H. E. Brown 1902-3-24 5139 Sonoma Hills East of Santa Rosa. Comment
  SEINET780339  Plectritis samolifolia J. Ewan 1935-5-13 9262 Sonoma Wright School on Sebastopol Road. Comment
  UCR244671  Pleuropogon californicus Peter Rubtzoff 1966-4-30 5686 Sonoma North side of Hwy 116, 0.5 miles northwest of Stony Point Road crossing Comment
  CAS-BOT-BC260926  Pleuropogon californicus Catherine Best 1983-5-11 s.n. Sonoma At the edge of Arnold Drive about .5 mi. south up the intersection of Hwy. 116 Comment
  CDA19188  Pleuropogon californicus L. Correia 2001-5-23 PDR 038348 Sonoma North Coast Ranges; Stony Pt Rd, Petaluma. 0 Comment
  CAS-BOT-BC260967  Pleuropogon californicus var. californicus John R. Reeder; Charlotte G. Reeder 1973-5-28 6197 Sonoma Ca. 12 miles S of Dixon, ca. 1 mile SW of Dozier Station 30 Comment
  CAS-BOT-BC260979  Pleuropogon californicus var. californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  CAS-BOT-BC260985  Pleuropogon californicus var. californicus A. A. Heller 1902-4-15 5294 Sonoma Santa Rosa Comment
  RSA184881  Pleuropogon californicus var. californicus L. S. Rose 1965-4-4 65019 Sonoma Sonoma. 24 Comment
  RSA227223  Pleuropogon californicus var. californicus Peter Rubtzoff 1961-5-24 4601 Sonoma Upper Stemple Creek Marsh. Comment
  UCD90132  Pleuropogon californicus var. californicus Beecher Crampton 1955-4-5 2417 Sonoma 2.5 miles south of Windsor, western boundary of Sonoma County Airport, along Mark West Road. Comment
  RSA176931  Pleuropogon californicus var. californicus P. H. Raven 1963-4-28 18252 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  UC1446217  Pleuropogon hooverianus Paul But with Grace Law 1977-5-3 P 6 Sonoma 3 mi ne of Penngrove (along Pressley Road) Comment
  UCD92179  Poa Beecher Crampton 1955-6-17 2938 Sonoma 1/2 mile south of Guerneville. Comment
  UCD92203  Poa Collector Unknown 1941-4-1 379 Sonoma near Wright School. Comment
  CAS-BOT-BC255602  Poa annua Peter Rubtzoff 1953-5-16 1361 Sonoma Vacation Beach, near Guerneville, Banks of Russian River Comment
  CAS-BOT-BC255608  Poa annua John Thomas Howell; et al. 1981-5-14 53940 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain Comment
  SEINET13347297 Image available Poa annua A. G. Vestal 1955-5-7 s.n. Sonoma Comment
  UCD90230  Poa annua Collector Unknown 1941-10-1 s.n. Sonoma Santa Rosa Creek. Comment
  CAS-BOT-BC256026  Poa pratensis Catherine Best 1981-6-5 s.n. Sonoma Stoltz Lane about 2 miles N.E. of Occidental Comment
  CAS-BOT-BC256031  Poa pratensis Peter Rubtzoff 1960-6-5 4431 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road Comment
  CAS-BOT-BC256034  Poa pratensis Peter Rubtzoff 1958-5-3 3612 Sonoma Atascadero Creek Marsh 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-BC243252  Poa secunda subsp. secunda G. DeNevers 1981-4-25 803 Sonoma Pepperwood Ranch. Along Franz Valley Road below lower Pepperwood entrance Comment
  UC1132792  Poa secunda subsp. secunda H. S. Yates 1934-4-22 3852 Sonoma 2 mi s Mark West; Calistoga Quadrangle Comment
  CAS-BOT-BC243202  Poa secunda subsp. secunda David L. Morgan 1961-4-12 s.n. Sonoma Junction of J Street extension and San Antonio Road, 2 miles SW of Petaluma Comment
  CAS-BOT-BC244193  Poa trivialis Peter Rubtzoff 1951-7-8 410 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  RSA144371  Poa trivialis Roxana S. Ferris, Laura Lorraine 1961-6-14 13542 Sonoma Willow Creek road between Occidental and Jenner, 5.7 miles from Jenner Comment
  CAS-BOT-BC244260  Poa unilateralis B. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar Comment
  SEINET10659519  Poa unilateralis A. Arthur Heller Heller 5279 Sonoma Bodega Bay. Comment
  RSA83443  Pogogyne douglasii F. W. Peirson 1925-8-8 6340 Sonoma Field 6 miles south of Santa Rosa Comment
  SEINET9339237  Pogogyne douglasii Unknown 2009-5-12 Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). Associates: Juncus bufonius, Deschampsia danthoniodes, Leontodon taraxacoides. Comment
  CDA40768  Pogogyne douglasii subsp. minor Peter Rubtzoff 1971-5-3 6487 Sonoma 4.25 miles west of Glen Ellen. 0 Comment
  CDA11013  Polycarpon tetraphyllum G. F. Hrusa 1993-3-14 10527 Sonoma North Coast Biodiversity Arena; NW base of Mt. St. Helena. Foote Ranch, approx 10 m N of Calistoga on Hwy 128. 152 Comment
  JEPS46103  Polygala californica Eleanor Armstrong 1932-5-18 474 Sonoma Camp Meeker 121 Comment
  RSA132211  Polygala californica Delzie Demaree 1955-6-12 36976 Sonoma Westminister Woods. P.O. Camp Meeker Comment
  SEINET12205658  Polygala californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -240 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CAS-BOT-BC110537  Polygonum Peter Rubtzoff 1987-9-27 9854 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville. Comment
  CAS-BOT-BC110531  Polygonum Peter Rubtzoff 1975-8-28 8363 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC110534  Polygonum Peter Rubtzoff 1973-9-9 7310 Sonoma Kenwood Marsh. Comment
  UC6718  Polygonum amphibium var. emersum Alice King June 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC414280  Polygonum aviculare subsp. depressum Peter Rubtzoff 1961-8-22 4681 Sonoma Fife Creek Marsh Comment
  UCD99974  Polygonum aviculare subsp. depressum Frederica Bowcutt 1996-5-18 2120 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 about 1/2 air mile NNW of Bald Mtn. 396 Comment
  CAS-BOT-BC414335  Polygonum aviculare subsp. rurivagum John Thomas Howell 1932-9-18 10780 Sonoma Near Kenwood Comment
  UCR19269  Polygonum convolvulus John C. Roos 1959-7-30 s.n. Sonoma North Coast Ranges, Healdsburg garden Comment
  UC903079  Polypodium scouleri Ethel Crum 1930-7-27 822 Sonoma 1 mi n Fort Ross; North Coast Ranges Comment
  CAS-BOT-BC331489  Polypogon Peter Rubtzoff 1973-9-4 7293 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC233000  Polypogon australis Peter Rubtzoff 1962-8-22 5054 Sonoma Bodega Bay Marsh Comment
  JEPS45804  Polypogon australis Eleanor Armstrong 1932-5-23 168 Sonoma near Wright School 3 mi w Santa Rosa Comment
  HSC10826  Polypogon interruptus C. S. Chavez 1965-6-9 84 Sonoma 1 mi. S of Guerneville on Hwy. 116, bank of Russian River. Comment
  UC50626  Polypogon interruptus J. Burtt Davy 1896-7-24 Sonoma along the Russian River below Guerneville; along the Russian River Comment
  UC971701  Polypogon interruptus Leo Koch 1940-6-5 1012 Sonoma along Highway 101, three mi n Santa Rosa (near pond in hills behind Fountaingrove Vineyard); hills behind Fountaingrove Vineyard Comment
  CAS-BOT-BC237398  Polypogon monspeliensis Greg de Nevers 1981-5-12 1142 Sonoma Pepperwood Ranch. At the Red Corral, Old McCann Homestead Comment
  CAS-BOT-BC237412  Polypogon monspeliensis Peter Rubtzoff 1963-7-27 5217 Sonoma Lower Salmon Creek Marsh Comment
  SEINET8465033 Image available Polypogon monspeliensis G. K Helmkamp, E. A. Helmkamp 2010-6-4 16224 Sonoma North Coast Ranges; Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  UC50644  Polypogon monspeliensis A. B. Leckenby 1896-6-9 Sonoma Petaluma Comment
  UCR248741  Polypogon monspeliensis Peter Rubtzoff 1973-9-8 7303 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  OBI23270  Polypogon monspeliensis Jim Rogers 1972-7-30 10 Sonoma Santa rosa. Where Reovir Dr crosses Santa Rosa Crk Comment
  RSA93467  Polypogon monspeliensis Milo S. Baker 12390 Sonoma Near creek west of Petrified Forest at Shale Quarry. Comment
  UC71449  Polystichum Bioletti 1894-12-25 Sonoma Graham Canyon Comment
  SEINET11718542  Polystichum californicum W. Knight, Knight, I.; Ellman, P. 1986-1 5850 Sonoma Bouverie Audubon Preserve, 0.75 mi E of parking log along fire road 46 Comment
  SEINET11720934  Polystichum dudleyi F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -56 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  UC1784892  Polystichum dudleyi Wendy Born Jul 2003 Sonoma Armstrong Redwoods State Park Comment
  CAS-BOT-BC72484  Polystichum munitum Peter Rubtzoff 1952-3-22 862 Sonoma bordering the Upper Marsh in the west Comment
  RSA12253  Polystichum munitum C. B. Wolf 1934-6-29 5798 Sonoma 6/10 mile inland from Stewarts Point. 61 Comment
  CAS-BOT-BC257354  Populus Peter Rubtzoff 1980-5-26 9447 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC102353  Populus alba Peter Rubtzoff 1972-8-25 6854 Sonoma San Antonio Creek on east side of Hwy 101 crossing Comment
  CAS-BOT-BC102665  Populus fremontii Peter Rubtzoff 1960-5-15 4335 Sonoma Fife Creek Marsh Comment
  RSA800144  Populus fremontii subsp. fremontii Peter Rubtzoff 1973-10-10 7736 Sonoma Salmon Creek, 0.25 mi south of Freestone along creek canyon. Comment
  CAS-BOT-BC445295  Portulaca oleracea Peter Rubtzoff 1965-8-22 5610 Sonoma Russian River, Forest Hills 5.5 mi east of Guerneville. Comment
  CAS-BOT-BC274037  Potamogeton crispus Peter Rubtzoff 1970-10-3 6407 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  RSA800842  Potamogeton foliosus Peter Rubtzoff 1971-9-1 6667 Sonoma SPring Creek Reservoir area, east of Santa Rosa Comment
  CAS-BOT-BC257683  Potamogeton nodosus Peter Rubtzoff 1971-6-25 6552 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  CAS-BOT-BC272852  Potamogeton nodosus Peter Rubtzoff 1964-7-14 5397 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC453901  Potamogeton nodosus M. S. Baker 1900-8-1 s.n. Sonoma Mark West Creek near Saguna. Comment
  CAS-BOT-BC454022  Potamogeton pectinatus Peter Rubtzoff 1955-9-9 2123 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC141959  Potentilla anserina subsp. pacifica Walter Knight; Irja Knight 1963-8-13 212 Sonoma Horseshoe Cove Comment
  UCD19495  Potentilla anserina subsp. pacifica Terry Reedy 1974-5-11 205 Sonoma Bodega Head. 1 Comment
  SD37703  Potentilla norvegica Edith A. Purer 1932-7-24 4068 Sonoma Roadside from Bodega Bay to Santa Rosa-canon Comment
  UCD139802  Prosartes hookeri Mary M. Hektner 1976-5-13 258 Sonoma Unit 34-A Owners' Map, Sea Ranch, near State Highway 1. 1325 Comment
  UC1288498  Prunella Andrew P. Nelson 1960-8-3 646 -B Sonoma Pitkin Marsh Comment
  UCD36685  Prunella vulgaris Beecher Crampton 1955-6-17 2934 Sonoma 0.5 mile south of Guerneville. Comment
  UCD125332  Prunella vulgaris A. A. Heller 1902-6-7 5658 Sonoma Santa Rosa. Comment
  POM64541  Prunella vulgaris var. lanceolata A. A. Heller 1902-6-4 12191 Sonoma Santa Rosa. Comment
  RSA135471  Prunella vulgaris var. lanceolata Volney Rattan 1877-6-16 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC159826  Prunus angustifolia Peter Rubtzoff 1952-5-31 1107 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  RSA0045172  Prunus virginiana var. demissa Greg de Nevers 1998-6-2 11267 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Franz Valley School Road at Bordjeiffs. 100 Comment
  RSA785669  Pseudognaphalium luteoalbum Peter Rubtzoff 1970-10-3 6403 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  UCD135219  Pseudognaphalium stramineum P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  UCD159438  Pseudognaphalium stramineum D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 195 -2 Sonoma Abandoned volleyball court/field. Disturbed. 6 Comment
  UCR2993  Pseudotsuga menziesii Wm. Horn Jr. 1963-4-10 630410- 2 Sonoma San Francisco Bay, 0.5 mi N on Jonive Rd. at a point 5 mi west of Sebastopol on Bodega Highway Comment
  JEPS46756  Pseudotsuga menziesii var. menziesii W. L. Jepson 1931-7-19 15955 Sonoma Watson School near Bodega Comment
  CAS-BOT-BC166938  Psilocarphus Peter Rubtzoff 1966-5-30 s.n. Sonoma Laguna de Santa Rosa, northeast of Graton, ca. 0.5 mi. N of Guerneville Road. Comment
  CAS-BOT-BC166710  Psilocarphus Peter Rubtzoff 1959-6-20 4150 Sonoma Willow Creek Marsh Comment
  UCD148450  Psilocarphus Peter Rubtzoff 1963-6-6 5168 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  CAS-BOT-BC361729  Psilocarphus brevissimus var. brevissimus J. W. Congdon 1880-5-24 s.n. Sonoma Santa Rosa Comment
  UC1601292  Psilocarphus oregonus E. Palmer Sonoma Petaluma Comment
  CAS-BOT-BC362072  Psilocarphus tenellus Alice Eastwood 1921-5-8 10466 Sonoma Petaluma Comment
  CAS-BOT-BC362078  Psilocarphus tenellus John Thomas Howell 1930-6-8 5243 Sonoma Bodega Road 3 miles east of Valley Ford Comment
  SEINET8722024 Image available Psoralea macrostachya Unknown 1892-1 51 a Sonoma Comment
  SD27372  Pteridium aquilinum var. pubescens Kate O. Sessions 1881-1 Sonoma Comment
  UCD137795  Pteridium aquilinum var. pubescens Ivette Loredo-Prendeville; Nicole Canon 1993-4-4 59 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 195 Comment
  CAS-BOT-BC421374  Pterostegia drymarioides A. A. Heller 1902-5-27 5612 Sonoma Bodega Bay Comment
  UCR254916  Pterostegia drymarioides Greg de Nevers 1998-6-8 11271 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC421371  Pterostegia drymarioides Milo S. Baker 1925-4-26 234 Local Sonoma Bluff opp. House, Maple Glen Comment
  JEPS78472  Pyrola aphylla Edward Lee 1936-6-7 2207 Sonoma MacLaren Trail, Bohemian Grove Comment
  CAS-BOT-BC460850  Pyrola aphylla Volney Rattan 1877-6-14 s.n. Sonoma Guerneville 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
  RSA155532  Quercus agrifolia L. S. Rose 1960-9-14 60097 Sonoma Laguna de Santa Rosa, 4 miles NE of Graton. 15 Comment
  UC503094  Quercus agrifolia Joseph P. Tracy 1930-11-30 9271 Sonoma creek below Knights Valley; North Coast Ranges 152 Comment
  UCD45024  Quercus agrifolia Joseph P. Tracy 1939-10-14 16513 Sonoma Alexander Valley. Foothills 4 miles S.E. of Geyserville. Abundant tree. 121 Comment
  CDA21841  Quercus berberidifolia D. G. Kelch 2007-5-13 7 .293 Sonoma Bouverie Preserve; E of Hwy 12 near Glen Ellen. Comment
  UCD162812  Quercus berberidifolia D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2015-3-8 1684 Sonoma Hooker Creek watershed. 590 Comment
  UCD45276  Quercus berberidifolia Roman Gankin 1967-10-4 1078 4 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  UCD60446  Quercus douglasii K. Aram 2007-10-1 s.n. Sonoma From SW bank of Lake Sonoma reservoir. Comment
  CAS-BOT-BC79572  Quercus dumosa John Thomas Howell 1946-3-31 21592 Sonoma Hills coast fo Sonoma Comment
  SD113991  Quercus durata Darley F. Howe 1972-4-28 4813 Sonoma Mt Hood Range, Trinity Road 395 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
  UCSB15790  Quercus durata var. durata Breedlove, Dennis 1962-6-6 Sonoma State Highway 128, 4.0 miles northwest of U.S. Highway 101 at Cloverdale 289 Comment
  SJSU16080  Quercus garryana Allen W. Jacobs 1934-8-1 3 Sonoma Found near the Hilton on NW slope above the Russian River Comment
  UCD46199  Quercus garryana Roman Gankin 1967-10-4 1078 6 Sonoma (Back crossed to Q. garryana). Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  CDA18984  Quercus garryana S. Parnay 2000-8-14 PDR 022421 Sonoma Hidden Oaks Rd., Santa Rosa. 0 Comment
  OBI37030  Quercus garryana var. garryana P. C. Pende 1979-10-7 s.n. Sonoma On hwy 116 3 mi from Sebastopol Comment
  CAS-BOT-BC105482  Quercus kelloggii Mrs. E. C. Suttiffe 1921-9-5 s.n. Sonoma Valley of the Moon, London's Place Comment
  CDA31300  Quercus kelloggii D. G. Kelch, Ed Biffin 2010-5-3 10 .192 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  HSC97740  Quercus kelloggii J. M. Tucker 1952-9-20 2624 Sonoma Voight Ranch 1.25 mi (air) SW of Cunningham, back of Voight House Comment
  CDA23789  Quercus lobata D. G. Kelch 2006-10-4 06 .497-B Sonoma Entrance to Bouverie Reserve. 2 km N of Agua Caliente along Rte 12. Comment
  UC1193242  Quercus lobata G. W. Tourtillott 1950-4-28 13 Sonoma 1 mi (off) Hale Ranch; Sulphur Creek 213 Comment
  UCD46789  Quercus lobata G. L. Stebbins Jr. 1945-10-7 3585 Sonoma 2 miles northwest of Kenwood. Comment
  CDA31302  Quercus wislizeni var. wislizeni D. G. Kelch, Ed Biffin 2010-5-3 10 .207 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCR255890  Ranunculus aquatilis Greg de Nevers 1990-3-26 9655 A Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CHSC33026  Ranunculus californicus Jane A. Rogers 1979-4-14 6 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. Field. 27 Comment
  SEINET7096763  Ranunculus californicus A. G. Vestal 1955-5-7 s.n. Sonoma Facendini Lane off Occidental Road 1 mile east of Occidental. NAD27, 38? deg. 24' 25ao, -122?_ 55' 38ao (converted to WGS84 decimal degrees) UTM Zone 10, 566349mE, 4250771mN. Comment
  UCD14289  Ranunculus californicus L. Coats 1983-5-17 22 Sonoma Sonoma Co.; along Highway 1, 4.3 miles north of Salt Point State Park; 21 Comment
  CAS-BOT-BC378692  Ranunculus californicus var. californicus Peter Rubtzoff 1966-5-29 5727 Sonoma Laguna de Santa Rosa area east of Cunningham (nr. Llano Rd.) Comment
  CAS-BOT-BC378698  Ranunculus californicus var. californicus A. A. Heller; H. E. Brown 1902-3-14 5055 Sonoma near Santa Rosa Comment
  CAS-BOT-BC378767  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma common in moist soil in grassy places on and back of the bluff north of Bay, Bodega Bay Comment
  CDA36950  Ranunculus occidentalis CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UCR222564  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2010-6-5 16251 Sonoma North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville 44 Comment
  RSA268383  Ranunculus occidentalis var. eisenii Lyman Benson 1935-3-31 6405 Sonoma Hwy 101, N Coast, Russian River. 244 Comment
  RSA155471  Ranunculus orthorhynchus var. platyphyllus L. S. Rose 1962-6-1 62063 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  JEPS87238  Ranunculus pusillus Jack and Betty Guggolz 1992-5-6 1273 Sonoma about 1 1/4 mi nw Windsor 42 Comment
  UC480962  Ranunculus pusillus Katharine Brandegee Sonoma Sebastopol Comment
  RSA181374  Rhamnus californica James I. McMurphy 1909-5-29 s.n. Sonoma Grade, ridge S of the Geysers. Comment
  RSA289508  Rhamnus californica Edward Lee 1936-6-8 2213 Sonoma trail 3A (N Ridge to Smith Creek), Bohemian Grove Comment
  POM88553  Rhamnus ilicifolia Helen D. Geis 1902-08 s.n. Sonoma Road to Skagg's Springs Comment
  UCD141958  Rhododendron occidentale G. F. Hrusa 1989-5-8 7009 Sonoma Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  UCR23636  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  CAS-BOT-BC227170  Rhododendron occidentale var. occidentale G. F. Hrusa 1988-4-22 5569 Sonoma Cavedale Rd. between Hwy 12 and Hwy 29 300 Comment
  CDA21375  Rhododendron occidentale var. occidentale G. F. Hrusa, M. Griffiths 1989-6-4 7096 Sonoma North Coast Ranges; Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. Comment
  RSA787919  Rhododendron occidentale var. occidentale G. Fred Hrusa 1989-5-8 6091 Sonoma Hogback Mountain at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  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
  RSA74060  Rhynchospora alba Milo S. Baker 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog Comment
  CAS-BOT-BC6187  Rhynchospora californica John Thomas Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 miles N of Sebastopol Comment
  UC710417  Rhynchospora californica John Thomas Howell 1936-7-26 12679 Sonoma 5 mi n Sebastopol (Pitkin Marsh); Pitkin Marsh Comment
  UCD141235  Rhynchospora capitellata Peter Rubtzoff 1951-7-28 561 Sonoma Pitkin Marsh, near Forestville. Upper Marsh. Comment
  UC75444  Ribes californicum Milo S. Baker 1898-4-4 19 Sonoma Sea View Comment
  CAS-BOT-BC168999  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1952-3-23 899 Sonoma Damp area north of the Lower Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC212922  Ribes menziesii John Thomas Howell 1934-3-3 11737 Sonoma 8 miles south of Fort Ross Comment
  UC75436  Ribes menziesii Milo S. Baker 1898-4-3 24 Sonoma between Forestville and Guerneville Comment
  CAS-BOT-BC198923  Ribes roezlii var. cruentum R. Bacigalupi 1948-3-6 2857 Sonoma Slopes of Mayacamas Range, on road from the Geysers to Geyserville. Comment
  UC754295  Ribes roezlii var. cruentum R. Bacigalupi 1948-3-6 2857 Sonoma on road from The Geyers to Geyserville; Mayacamas Range Comment
  UC75453  Ribes roezlii var. cruentum Milo S. Baker 1898-4-4 23 Sonoma Sea View Comment
  UC73089  Ribes sanguineum var. glutinosum Milo S. Baker 1898-4-4 Sonoma near Sea View Comment
  JEPS9657 Image available Ribes victoris W. L. Jepson 1893-5-5 13507 Sonoma Middletown Grade Mt. St. Helena; Middletown Grade, Mt. St. Helena Comment
  UC79623  Ribes victoris Michener and Bioletti Apr. 1893 Sonoma Adobe Canyon Comment
  UC11671  Ribes victoris F. T. Bioletti Mar 1891 Sonoma Watson's Canyon Comment
  CAS-BOT-BC362937  Rigiopappus leptocladus Alice Eastwood 1915-6-5 4587 Sonoma Petrified Forest Comment
  CAS-BOT-BC376258  Rorippa Greg de Nevers 1992-5-5 10141 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. West of Three Tree Hill 475 Comment
  CAS-BOT-BC74698  Rorippa curvisiliqua Peter Rubtzoff 1958-7-19 3772 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC74705  Rorippa curvisiliqua Peter Rubtzoff 1968-9-21 5973 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74721  Rorippa curvisiliqua John Thomas Howell 1947-6-26 23303 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC74700  Rorippa curvisiliqua Peter Rubtzoff 1958-9-6 s.n. Sonoma Laguna de Santa Rosa north of Cunningham (near Todd Road crossing). Comment
  CAS-BOT-BC152656  Rosa californica John Thomas Howell 1926-11-14 2248 Sonoma Santa Rosa Comment
  SD133982  Rosa californica Greg de Nevers 1986-11-7 8116 Sonoma Riebli Rd., NE of Santa Rosa 149 Comment
  CAS-BOT-BC146773  Rosa gymnocarpa Irja Knight; Walter Knight 1964-11-15 782 Sonoma Hood's Peak on road to enroute to Johnson Lake Comment
  SDSU9226  Rosa gymnocarpa D. F. Howe 1963-7-2 3576 Sonoma 3.5 miles E of Guerneville on #12 . 30 Comment
  UCD92279  Rostraria cristata Beecher Crampton 1957-5-16 4038 Sonoma 3 miles SW of Cloverdale, Hot Springs Road. Comment
  JEPS117050  Rotala ramosior Peter Warner 2008-8-26 91 Sonoma Lower Pitkin Marsh, 1 mi SE of Forestville, on Sonoma Land Trust parcel, N of primary stream channel, in small drainage downslope from adjacent, off-site water impoundment (pond). 41 Comment
  CAS-BOT-BC262825  Rubus Peter Rubtzoff 1954-8-11 1691 Sonoma Guerneville Marsh. Comment
  UCD166345  Rubus Peter Rubtzoff 1953-5-16 1354 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCR265086  Rubus armeniacus Ann Howald 2015-4-28 3374 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, c. 11.7 miles west of intersection with Rockpile Rd, Warm Springs drainage 431 Comment
  UC1128639  Rubus parviflorus A. Lewis 1932-5-13 75 Sonoma Calabasas Creek Napa Quadrangle, Calabasas Creek 457 Comment
  RSA800354  Rubus spectabilis Peter Rubtzoff 1957-4-28 3291 Sonoma Duncans Mills Marsh. Comment
  UC73080  Rubus spectabilis Milo S. Baker 1898-4-5 Sonoma near Stewarts Point; near Stewarts Point Comment
  RSA122155  Rubus spectabilis var. franciscanus H. S. Yates 1934-4-21 5348 Sonoma Near Bodega, Duncan Mills. 915 Comment
  UCR47956  Rubus spectabilis var. franciscanus D. Neubacher 1975-5-11 17 Sonoma Duncan Mills Campground in Duncan Mills Comment
  CAS-BOT-BC157175  Rubus ursinus Mrs. E. C. Sutliffe 1920-7-18 s.n. Sonoma Annapolis Comment
  CAS-BOT-BC376293  Rumex Greg de Nevers 1995-8-1 10764 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Skovie 487 Comment
  RSA0057966  Rumex Greg de Nevers 1997-9-22 11088 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction. 100 Comment
  CAS-BOT-BC173548  Rumex Peter Rubtzoff 1964-7-29 5444 Sonoma Brooks Gulch Marsh. Comment
  UCD148370  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  CAS-BOT-BC422231  Rumex acetosella A. A. Heller 1902-6-7 5655 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  CAS-BOT-BC422234  Rumex acetosella Walter Knight; Irja Knight 1963-8-13 410 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC422237  Rumex acetosella Blanca Barrell 1982-8-7 s.n. Sonoma The Sea Ranch Comment
  CAS-BOT-BC166705  Rumex conglomeratus Peter Rubtzoff 1957-8-17 3510 Sonoma Occidental Marsh. Comment
  UCD101139  Rumex crispus Mary M. Hektner; Cathy Hendel 1974-7-25 178 Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC433696  Rumex obtusifolius Peter Rubtzoff 1987-7-18 9800 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Off Summerhouse Park Road 0.2 mile from (west of) Forest Hills Road. Comment
  CAS-BOT-BC433848  Rumex pulcher John H. Thomas 1976-6-16 18300 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  UC188628  Rupertia physodes Michener and Bioletti 1893-5-28 Sonoma Glen Ellen Comment
  HSC49283  Rupertia physodes J. P. Smith, J. O. Sawyer 1977-6-5 2880 Sonoma Canyon Rd. about 1/2 mi. W of US 101 across from Pendrocelli Winery Comment
  RSA107069  Rupertia physodes L. S. Rose 1956-6-18 56097 Sonoma 4 mi. w. of Graton, junction of Harrison grade and Green Valley Road. Comment
  SEINET4344595 Image available Rytidosperma penicillatum Unknown 2003-7-19 18246 Sonoma Bodega Bay, coastal meadow behind community center on west side of Hwy 1 north of town. Comment
  CAS-BOT-BC259173  Sagina Peter Rubtzoff 1964-6-24 5370 Sonoma Lower Salmon Creek Marsh. Comment
  RSA247450  Sagittaria cuneata Peter Rubtzoff 1971-7-9 6594 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC445772  Sagittaria latifolia Peter Rubtzoff 1951-8-19 663 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the Upper Marsh Comment
  CAS-BOT-BC445778  Sagittaria latifolia Peter Rubtzoff 1955-9-25 2160 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC445803  Sagittaria montevidensis Peter Rubtzoff 1970-8-18 6305 Sonoma 5 mi. north of Sears Point. Comment
  UC903712  Salicornia europaea Milo S. Baker 1946-10 11661 Sonoma 1 mi n junction with Sears Point Hwy. (e of hwy) Comment
  UCR249325  Salix Peter Rubtzoff 1974-4-17 7364 Sonoma Upper Green Valley Marsh Comment
  UCR250389  Salix Peter Rubtzoff, J. E. Eckenwalder 1974-4-6 7361 Sonoma Salmon Creek, 0.25 mi. south of Freestone 64 Comment
  RSA0019508  Salix Peter Rubtzoff, J. Eckenwalder 1974-4-6 7352 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC126267  Salix X sepulcralis Peter Rubtzoff 1952-3-23 905 Sonoma Southern half of Lower Marsh Comment
  CAS-BOT-BC135954  Salix alba subsp. vitellina Walter Knight; Irja Knight 1986-3-3 5246 Sonoma Junction Stage Gulch Road and Old Adobe Rd., at edge of summer-dry creek. Comment
  CAS-BOT-BC103080  Salix bonplandiana C. R. Ball; H. E. Parks 1931-2-17 22 Sonoma Santa Rosa Creek, 1 mile south of Santa Rosa Comment
  CAS-BOT-BC103086  Salix bonplandiana Peter Rubtzoff 1961-8-24 4700 Sonoma Fife Creek Marsh, along Fife Creek Comment
  UC1299158  Salix breweri Freed W. Hoffman 1947-5-30 517 Sonoma Layton Mine North Coast Ranges, Austin Creek Comment
  UC66167  Salix exigua var. hindsiana A. A. Heller 1902-4-18 5328 Sonoma on Russian R. near Windsor Comment
  POM220468  Salix laevigata Carleton R. Ball, Harold E. Parks 1931-2-17 22 Sonoma Santa Rosa Creek, 1 mile S of Santa Rosa. Comment
  SD133980  Salix laevigata Peter Rubtzoff 1966-9-10 5819 Sonoma Atascadero Creek Marsh. Along sluggish marshy Atascadero Creek just below the marsh Comment
  UC66158  Salix laevigata A. A. Heller 1902-4-22 5346 Sonoma on Santa Rosa Creek near Santa Rosa; Santa Rosa Creek Comment
  UC453090  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 10 Sonoma Bohemian Grove near Monte Rio; Russian R. Comment
  UC453091  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 11 Sonoma Bohemian Grove near Monte Rio; Russian R. Comment
  UC453098  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 16 Sonoma Bohemian Grove near Monte Rio (lower bank of Russian R.); Russian R. Comment
  UC482064  Salix lasiandra subsp. lasiandra Baker, Ball, Bracelin, and Crum 1931-5-9 347 Sonoma ca. 2 km. e. Bodega Bay (near Bodega, on Santa Rosa - Bodega Hwy., Larkspur R__k) Comment
  CAS-BOT-BC128059  Salix lasiandra var. lasiandra A. A. Heller 1902-4-18 5329 Sonoma Near Windsor on Russian River Comment
  CAS-BOT-BC107095  Salix lasiolepis Peter Rubtzoff 1952-6-15 1263 Sonoma Fitch Mtn. Grove, near Healdsburg. Bank of Russian River Comment
  UC453087  Salix lasiolepis W. A. Setchell 1931-7-25 8 Sonoma lower bank of Russian at Bohemian Grove (near Monte Rio) Comment
  UC453092  Salix lasiolepis W. A. Setchell 1931-7-25 12 Sonoma Bohemian Grove Russian River (lower bank of river, near Monte Rio) Comment
  UC482324  Salix lasiolepis C. R. Ball and H. E. Parks 1931-2-17 20 Sonoma 1 mi s Santa Rosa; Santa Rosa Creek Comment
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Sep 7 2012
  UC505684  Salix lasiolepis C. R. and B. S. Ball 1933-5-30 2511 Sonoma Bodega Bay; at base of bluff below road Comment
  RSA31743  Salix lasiolepis A. A. Heller 1900-3-18 5097 Sonoma Santa Rosa Creek. Near Santa Rosa. Comment
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May 1 2014
  POM281344  Salix lasiolepis var. bigelovii Carleton R. Ball, B. S. Ball 1933-5-6 2501 Sonoma 4 miles SW of Calistoga. On road to Petrified Forest and just over the Napa Co line. Comment
  CAS-BOT-BC125697  Salix melanopsis W. A. Setchell 1931-8-1 s.n. Sonoma Bohemian Grove, near Monte Rio, in gravelly bed of Russian River Comment
  SD918  Salix melanopsis W. A. Setchell 1931-8-1 Sonoma Bohemian Grove, near Monte Rio, gravelly bed pf Russian River Comment
  CAS-BOT-BC128902  Salix sitchensis Ball; Bracelin; Parks & Parks 1931-4-21 35 Sonoma Maacama Creek, 25 km. northwest of Calistoga Comment
  CAS-BOT-BC128908  Salix sitchensis Mary P. Wells 1982-8-21 120 Sonoma North end of South Gerstle Cove, Salt Point State Park Comment
  UC482069  Salix sitchensis Baker, Ball, Bracelin, and Crum 1931-5-9 344 Sonoma 2 km. e. Bodega Bay Comment
  UC524785  Salix sitchensis W. A. Setchell 1934-7-10 4 Sonoma Coast Hwy. above Fort Ross (Kru's Ranch) Comment
  UC66174  Salix sitchensis A. A. Heller 1902-3 5044 Sonoma foot of Mt. Hood (Sonoma Creek); , Sonoma Creek Comment
  UCD111894  Salix sitchensis P. G. Connors 1991-7-2 192 Sonoma On lower slope of damp hillside on Bodega Head, bordering harbor. Comment
  CAS-BOT-BC176848  Salsola australis Mary P. Wells 1992-11-16 1075 Sonoma Sixth Street where Adams Street ends, Santa Rosa Comment
  CAS-BOT-BC176914  Salsola tragus Catherine Best 1986-11-16 1232 Sonoma At the edge of Hwy. 121 near the railroad crossing Comment
  UCD160126  Sambucus nigra subsp. caerulea James A. Neilson Jr. 1973-6-6 2958 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  CAS-BOT-BC235077  Sambucus racemosa var. racemosa F. H. Utech; Walter Knight; Irja Knight 1984-4-17 84 -159 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek Road 144 Comment
  OBI39520  Sambucus racemosa var. racemosa F. H. Utech, Walter and Irja Knight, Irja Knight 1984-4-17 84 -160 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek rd 145 Comment
  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
  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
  POM117336  Sanicula bipinnatifida Marcus E. Jones 1924-4-23 s.n. Sonoma Petaluma Comment
  SEINET12121509  Sanicula bipinnatifida F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -091 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 244 Comment
  UCD128015  Sanicula bipinnatifida Caitlin Lewis; William Mutch 1993-4-17 1 Sonoma About 40 air miles north of San Francisco, 11 air miles east of Santa Rosa and 2.5 air miles northeast of Kenwood. In Adobe Canyon north of Sugarloaf Ridge and south of Red Mountain 1 mile. Near visitor center. 365 Comment
  UC1022536  Sanicula crassicaulis C. Ritchie Bell 1952-3-8 3 X335 Sonoma near entrance to Mountain Home Ranch Comment
  UCD128074  Sanicula crassicaulis J. M. Tucker 1951-6-26 2137 Sonoma at roadside, near summit of range, road from Glen Ellen to Oakville. Comment
  CDA12824  Sanicula laciniata G. F. Hrusa, R. Gross 1996-3-8 12656 Sonoma North Coast Biodiversity Arena; S side of Foote Creek. Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  SEINET13945233 Image available Sanicula menziesii Carl B. Wolf 1934-1 5804 Sonoma 0.6 mi inland from Stewarts Point, alt. ca 200 ft 61 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
  UC1010439  Saxifraga californica Leo Koch 1938-3-20 48 Sonoma 4 mi n of Santa Rosa (Miss Marian Barbours pasture, on Hwy 101, (Ranch)); North Bay Comment
  UC11769  Saxifraga californica F. T. Bioletti 1894-1 Sonoma Hood's Peak Comment
  UC635550  Saxifraga californica H. L. Mason 1931-3-7 5807 Sonoma 12 mi w of Santa Rosa (Vine Hill School); Vine Hill School Comment
  SD254704  Saxifraga mertensiana Ann Howald 2015-4-1 3331 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 16.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 294 Comment
  CAS-BOT-BC441181  Saxifraga mertensiana R. Bacigalupi 1948-3-6 2854 Sonoma One mile west of Skaggs Springs, on cliff Comment
  UC75643  Scandix pecten-veneris Milo S. Baker 1899-6-5 Sonoma Santa Rosa Comment
  CAS-BOT-BC111396  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1958-8-23 3924 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llamo Rd). Comment
  CAS-BOT-BC111432  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1958-8-31 3955 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC111438  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1960-6-25 4522 Sonoma Laguna de Santa Rosa northeast of Graton, ca 1/2 mi north of Guernebille Rd. crossing. Comment
  CAS-BOT-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
  RSA227213  Schoenoplectus fluviatilis Peter Rubtzoff 1955-8-7 2033 Sonoma Sonoma County: Guerneville Marsh. Comment
  SD134064  Schoenoplectus mucronatus Peter Rubtzoff, Lucy Blake, Nancy Harrison, Betty Lovell 1979-7-15 9290 Sonoma Knights Valley, pond on east side of Ida Clayton Road, just north of its junction with Highway 128. In shallow water along marshy margin of pond. Comment
  CAS-BOT-BC111800  Schoenoplectus pungens var. badius Peter Rubtzoff 1955-8-20 2067 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC111806  Schoenoplectus pungens var. badius Peter Rubtzoff 1959-6-13 4126 Sonoma Willow Creek Marsh. Comment
  UCR249061  Scirpus maritimus Peter Rubtzoff 1954-8-6 2021 Sonoma Bodega Harbor Marsh 0 Comment
  CAS-BOT-BC361425  Scirpus microcarpus Greg de Nevers 1997-4-1 10925 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 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
  UCD141248  Scirpus microcarpus Mary M. Hektner 1976-10-19 271 Sonoma just south of Irena Morgan's house on Pacific Reach, Unit 24 Owner's Map, Sea Ranch. Comment
  UC70382  Scoliopus bigelovii Milo S. Baker 1898-4-3 Sonoma near Guerneville Comment
  SEINET12058066  Scoliopus bigelovii F. H. Utech 1988-3-2 88 -011 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Rd on CA 1 100 Comment
  CAS-BOT-BC240033  Scribneria bolanderi Catherine Best 1985-4-5 1068 Sonoma Stoetz Lane about 3 miles northeast of Occidental Comment
  UCD92507  Scribneria bolanderi Beecher Crampton 1959-6-16 5384 Sonoma 1 mile east of Occidental. Comment
  JEPS77870 Image available Scrophularia californica Robert M. Lloyd 1965-5-8 3633 Sonoma Corner of Pressley Road and Sonoma Mt. Road, west of Glen Ellen. Comment
  UCD160751  Scrophularia californica James A. Neilson Jr. 1975-5-23 3208 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  RSA0022386  Scrophularia californica Peter Rubtzoff 1953-5-16 1356 Sonoma Vacation Beach. Near Guerneville. along Russian River. Comment
  RSA0004003  Scutellaria viarum A. A. Heller 1902-6-27 5786 Sonoma West of Windsor near Russian river. Comment
  OBI59736  Selaginella wallacei S. F. Blake 1927-8-28 10351 Sonoma Near Petrified Forest, near Santa Rosa Comment
  UC480625  Senecio aronicoides Carl Meyer 1928-3-3 308 Sonoma Santa Rosa Comment
  RSA167465  Senecio flaccidus var. douglasii Joseph P. Tracy 1946-9-3 17652 Sonoma Russian River. Comment
  CAS-BOT-BC364681  Senecio vulgaris Peter Rubtzoff 1973-8-20 7220 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  JEPS128269  Senecio vulgaris Roger Raiche 2000-4-8 025 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC252  Sequoia sempervirens J. Burtt Davy July 1896 Sonoma near Guerneville Comment
  CAS-BOT-BC361288  Setaria Greg de Nevers 1997-8-20 11086 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Along Mark West Spring Road 400 Comment
  CAS-BOT-BC187889  Sidalcea calycosa subsp. rhizomata Peter Rubtzoff 1951-8-19 640 Sonoma Southern half of Lower Marsh, Pitkin Marsh, near Forestville Comment
  RSA245528  Sidalcea malviflora Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1103 Sonoma Fort Ross State Park. Comment
  RSA87995  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19584 Sonoma 1 mile N. of Ft Ross. Comment
  SEINET11998343  Sidalcea malviflora C. F. Quibell 1976-1 1356 Sonoma Meacham Hill, Christo fence route 30 Comment
  SEINET7042576  Sidalcea malviflora subsp. laciniata A. G. Vestal 1947-5-16 s.n. Sonoma Ca. 6.7 miles east of Windsor. Jimtown quadrangle UTM Zone 10, 519948mE, 4276242mN. Comment
  JEPS21824  Sidalcea malviflora subsp. purpurea Gayle Westigard 1958-5-9 71 Sonoma on the coast near sea level Plantion (Plantation) 0 Comment
  SEINET3228072  Sidalcea oregana subsp. valida John Thomas Howell 1932-1 Sonoma Comment
  UCR143600  Silene gallica G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  CAS-BOT-BC392491  Silene gallica John H. Thomas 1976-6-16 18229 A Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC392494  Silene gallica G. DeNevers 1981-5-30 1340 Sonoma Pepperwood Ranch; In creekbed N of Hansel's corral. Comment
  CAS-BOT-BC392497  Silene gallica Peter Rubtzoff 1952-5-10 1020 Sonoma Bordering the Upper Marsh in the east. Comment
  RSA41908  Silene gallica H. C. Cantelow 1936-5-3 1244 Sonoma 3 miles S of El Verano. Comment
  UCD98974  Silene laciniata subsp. californica K. Esau 1933-7-7 s.n. Sonoma Calistoga, near Petrified Forest. Comment
  UC1745645  Silene multinervia Annetta M. Carter 1947-5-30 1841 Sonoma S slopes of Hood Mt. N of Milo S Baker residence, Kenwood. Comment
  RSA0056440  Silene multinervia Greg de Nevers 1997-4-16 10931 Sonoma Cavedale Road. 152 Comment
  UC852864  Silene scouleri subsp. grandis Baker 1938-6-6 9026 Sonoma top of Bodega Rock North Bay Counties, Bodega Bay, top of Bodega Rock Comment
  CAS-BOT-BC389883  Silene scouleri subsp. scouleri Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC74920  Sinapis arvensis L. R. Abrams 1943-5-2 14332 Sonoma Vacant lot along U.S. Highway 101, Healdsburg. Comment
  UCD160117  Sisyrinchium James A. Neilson Jr. 1973-6-3 3040 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
  CHSC34405  Sisyrinchium bellum Jeffrey D. Prouty 1979-4-11 216 Sonoma CA. 7 mi. n of Santa Rosa. Mark West Springs Road, ca. 300 yards n of juct. with Michelle Way. 137 Comment
  SBBG1135  Sisyrinchium bellum H. and M. Dearing 1939-5-14 3371 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  RSA239773  Sisyrinchium californicum Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1100 Sonoma Fort Ross State Park. Comment
  UC1134661  Smilacina racemosa E. Armstrong 1934-3-26 917 Sonoma 2 mi s Camp Meeker; Sebastopol Quadrangle Comment
  CAS-BOT-BC164411  Solanum Peter Rubtzoff 1962-7-14 4991 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC164422  Solanum Peter Rubtzoff 1963-10-5 5287 Sonoma Laguna de Santa Rosa east of Graton. Comment
  CAS-BOT-BC166694  Solanum Peter Rubtzoff 1959-9-19 4277 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC164417  Solanum Peter Rubtzoff 1965-8-22 5612 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD166506  Solanum americanum Peter Rubtzoff 1958-8-9 3837 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  UCD126855  Solanum carolinense T. C. Fuller 1967-9-12 16360 Sonoma 1605 Laguna Road, Sebastopol. Comment
  UC473574  Solidago spathulata John Thomas Howell 1931-9-26 8095 Sonoma 7 mi n Fort Ross Comment
  UCD136069  Solidago spathulata G. F. Hrusa; G. L. stebbins, J. McCaskill 1993-9-14 11419 Sonoma along Cavedale Road approximately 2.7 miles east of Highway 12. 400 Comment
  CAS-BOT-BC365658  Solidago spathulata John Thomas Howell 1946-8-17 22866 Sonoma Cunningham Marsh Comment
  UCD136064  Solidago spathulata Mary M. Hektner 1974-1 s.n. Sonoma Unit 17 Owners' Map, Sea ranch, near State Highway 1. Comment
  OBI76737  Solidago velutina G. S. Ringius 1982-8-7 1495 Sonoma 8 km N of Bodega on Hwy 1 Comment
  CAS-BOT-BC365269  Solidago velutina subsp. californica Walter Knight; Irja Knight 1963-8-13 200 Sonoma Bodega Head Comment
  CAS-BOT-BC173668  Soliva sessilis Peter Rubtzoff; Walter Lennon 1974-5-11 7397 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC173844  Soliva sessilis Peter Rubtzoff 1969-6-22 6101 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC365956  Soliva sessilis G. DeNevers 1981-4-11 688 Sonoma Pepperwood Ranch. Lower orchard Comment
  UCD136129  Sonchus asper subsp. asper Mary M. Hektner; Cathy Hendel 1974-7-24 163 Sonoma alongside Kirkwood House on Pacific Reach, Unit 24 Owners' Map, Sea ranch, near State Highway 1. Comment
  UCD136184  Sonchus oleraceus Mary M. Hektner 1974-7-25 167 Sonoma Galleon's Reach, Unit 3 Owner's Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC236587  Sorghum halepense Mary P. Wells 1984-5-21 264 Sonoma Friends House grounds, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC236593  Sorghum halepense G. DeNevers 1981-7-31 1777 Sonoma Summerhome Park on the Russian River Comment
  SEINET11787288  Sparganium eurycarpum W. Knight, Knight, I. 1984-1 5012 Sonoma at Sea Ranch property 23 Comment
  CAS-BOT-BC258918  Spergula Peter Rubtzoff 1954-7-27 1576 Sonoma Guerneville Marsh. Comment
  UC972189  Spergula arvensis subsp. arvensis Milo S. Baker 1952-4-23 12404 Sonoma western outskirts Sonoma (e. side of 5th. St. between Bettencourt & McArthur) Comment
  CAS-BOT-BC251315  Spergularia Peter Rubtzoff 1959-6-20 4146 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC323963  Spergularia Peter Rubtzoff 1971-7-23 6614 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC390124  Spergularia bocconi Catherine Best 1982-8-18 s.n. Sonoma Goat Rock Park off of Hwy 1 Comment
  UC1563939  Spergularia rubra Barbara Ertter 1988-11-5 8027 Sonoma ca. 5 air mi due s Cloverdale (point below Little Flat parking area w of bridge); Lake Sonoma 152 Comment
  CAS-BOT-BC390727  Spergularia rubra Alice Eastwood; John Thomas Howell 1936-5-19 2497 Sonoma Santa Rosa Comment
  CAS-BOT-BC390730  Spergularia rubra John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53937 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-BC390994  Spergularia villosa Walter Knight; Irja Knight 1984-8-27 5085 Sonoma Near Gilardi Resort near Lakeville, along Petaluma River Comment
  CAS-BOT-BC500700  Stachys Peter Rubtzoff 1962-6-13 4910 Sonoma Freestone Marsh Comment
  CAS-BOT-BC502060  Stachys Peter Rubtzoff 1974-6-9 7584 Sonoma Upper Green Valley Marsh Comment
  CDA36952  Stachys ajugoides 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
  UC25968  Stachys ajugoides var. rigida Harley P. Chandler 1900-5-25 Sonoma Bodega Bay Comment
  UC416741  Stachys ajugoides var. rigida Katharine Brandegee Sonoma Bodega Comment
  UCD125776  Stachys chamissonis Mary M. Hektner 1974-6-3 17 -A Sonoma Sea Ranch. Near State Highway 1. Unit 24 Owners' Map. Comment
  SEINET9333111  Stachys rigida var. quercetorum John Nelson, Wnek, R. 2000-3-7 20940 Sonoma Coleman Beach Comment
  SEINET9361053  Stachys rigida var. quercetorum John Nelson, Wnek, Richard 2000-3-7 21352 Sonoma Guerneville Comment
  UCD126054  Stachys rigida var. quercetorum D. G. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  CAS-BOT-BC175334  Stellaria borealis subsp. sitchana Peter Rubtzoff 1951-6-30 307 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC175337  Stellaria borealis subsp. sitchana John Thomas Howell 1945-8-14 21399 Sonoma Perry Marsh Comment
  CAS-BOT-BC251170  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-7-9 1938 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC251306  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-7-9 1932 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC251257  Stellaria media Peter Rubtzoff 1958-8-31 3951 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC397763  Stellaria media Mary P. Wells 1990-4-9 1041 Sonoma Santa Rosa; Yard in Rincon Valley Comment
  JEPS36888  Stephanomeria virgata subsp. pleurocarpa W. L. Jepson 1938-10-1 19047 Sonoma s slope of Mt. St. Helena (half-way to pass) Comment
  UCD167313  Streptanthus James Neilson 1977-6-7 3905 Sonoma Mayacmas Mountains, between Lunar Point and crest of Mayacmas. Same area as Neilson 3904. (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
  JEPS96915  Streptanthus barbiger Dean W. Taylor 1998-6-22 16682 Sonoma Geysers Area, serpentine barren along John King Cade Road; headwters Cobb Creek 975 Comment
  UC1492715  Streptanthus barbiger Freed W. Hoffman 1948-6-1 2334 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UC956505  Streptanthus barbiger Freed W. Hoffman 1947-9-5 1067 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  CAS-BOT-BC61157  Streptanthus barbiger R. D. Stone 1983-6-14 534 Sonoma Headwaters of Squaw Creek drainage, 0.8 mile northwest of Geyser Rock. 960 Comment
  UC1292730  Streptanthus brachiatus Freed W. Hoffman 1950-5-25 3358 Sonoma E of Pine Flat, near Contact Mine Comment
  UC10874  Streptanthus glandulosus subsp. glandulosus F. T. Bioletti 1892-5-1 Sonoma Hood's Peak Comment
  JEPS18148  Streptanthus glandulosus subsp. secundus Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-30 5672 Sonoma headwaters of creek near Layton Chromite Mine (along and just above creek-bed); Big Austin Creek, vicinity of The Cedars 266 Comment
  UC1492785  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-6-4 2904 Sonoma along road at base of mt 2.2 mi from Healdsburg Park (e of Healdsburg); North Coast Ranges, Fitch Mountain Comment
  UC985967  Streptanthus glandulosus subsp. secundus Freed W. Hoffman April, 1948 2701 Sonoma Gabe's Rock North Coast Range, Poole Ridge (1 mi nw of Guerneville) Comment
  NY185747  Streptanthus glandulosus subsp. secundus F. W. Hoffman 1948-6-8 2323 Sonoma North Coast Ranges; Great Eastern Quicksilver Mine near Guerneville Comment
  JEPS128232  Streptanthus morrisonii Roger Raiche 2000-5-5 087 .00 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  JEPS82241  Streptanthus morrisonii Roger Raiche 1983-8-6 30581 Sonoma headwaters Austin Creek (The Cedars); , Austin Creek 182 Comment
  UCD167022  Streptanthus morrisonii James Neilson 1981-7-1 4046 Sonoma Mayacmas Mountains. Abril Ridge. (Abril Ridge assumed to be on Abril property which, based on other Neilson collections, includes T11N R9W Sect. 15. Exact location unknown, coordinates estimated by label maker.) Comment
  UCD167449  Streptanthus morrisonii James Neilson 1983-6-13 4096 Sonoma wind ridge upper East Austin Creek. East side of the Cedars. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC936538 Image available Streptanthus morrisonii subsp. hirtiflorus Freed W. Hoffman 1948-6-16 2344 Sonoma a short distance above Dorr's Cabin (Headwaters of East Austin Creek); North Coast Ranges, East Austin Creek; East Austin Creek above Dorr's 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-BC274034  Stuckenia pectinata Peter Rubtzoff 1964-8-20 5465 Sonoma 1 mile southeast of Jenner (near crossing of Hwys. 1 & 12). Comment
  CAS-BOT-BC540809  Symphoricarpos Peter Rubtzoff 1958-7-19 3760 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD137411  Symphoricarpos albus var. laevigatus Frederica Bowcutt; Jeff Kennedy , Jolie Henricks 1994-5-1 1763 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa; about 18 air miles NW of Napa; about 1.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge along the Goodspeed Trail about 200 yards from the trail head on Adobe Canyon Rd and just E of Bear Creek about 5 yards N of confluence w/ Sonoma Creek. 198 Comment
  CAS-BOT-BC97828  Symphyotrichum chilense J. W. C. 1880-9-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC164033  Taraxacum Peter Rubtzoff 1960-5-16 s.n. Sonoma Duncans Mills Marsh. Comment
  OBI23271  Taraxacum officinale Jim Rogers 1972-7-30 9 Sonoma 3764 Oregon Dr, Santa Rosa Comment
  UCR279883  Thermopsis californica Peter Rubtzoff 1965-5-8 5527 Sonoma Atascadero Creek Marsh 30 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
  UCD108604  Thermopsis californica var. californica Frederica Bowcutt; Botany 102 students 1994-5-21 1821 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. Along Meadow trail about 3/4 mile from trailhead. East from trail about 100 yards. 426 Comment
  UC1611636  Thermopsis macrophylla var. macrophylla R. Spellenberg, N. Zucker 1994-6-9 12070 Sonoma 7 air mi se of Stewart's Point (2.3 mi s of Skagg's Springs on road to Plantation) Comment
  CAS-BOT-BC66808  Thysanocarpus curvipes John Thomas Howell 1933-4-2 10935 Sonoma Sonoma Creek Canyon. Comment
  CAS-BOT-BC66822  Thysanocarpus curvipes David D. Keck 1931-4-4 1099 Sonoma Santa Rosa Creek Canyon. 225 Comment
  UC857532  Thysanocarpus curvipes L. Koch 1938-3-24 65 Sonoma near Kenwood (Los Alamos Canyon (near the quarry)); Los Alamos Canyon, near Kenwood Comment
  UC1084484  Thysanocarpus radians G. Thomas Robbins 1938-4-15 260 Sonoma along road to Graton 6-7 mi w Santa Rosa Comment
  CAS-BOT-BC67334  Thysanocarpus radians John H. Thomas 1968-4-4 14268 Sonoma 2.8 miles northeast of highway 101 on road to Mark Springs West, along Mark Springs road. Comment
  CAS-BOT-BC67337  Thysanocarpus radians John Thomas Howell 1934-3-27 11804 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa. Comment
  UC11051  Thysanocarpus radians Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  UC496421  Tiarella trifoliata var. unifoliata Merle Randall 1930-6-11 Sonoma Cazadero Comment
  SFV17047  Torilis arvensis P. Wilson 1997-6-1 3463 Sonoma Sugarloaf Ridge State Park. 500 Comment
  UCD93180  Torreyochloa pallida var. pauciflora P. G. Connors 1991-6-25 177 Sonoma Bodega Marine Laboratory. In Clark Marsh. Comment
  CAS-BOT-BC169261  Toxicodendron diversilobum Alice Eastwood 1922-5-4 11256 Sonoma Calistoga Comment
  CDA35358  Toxicodendron diversilobum G. D. Barbe 1974-4-29 1783 Sonoma 1 mile south of Washington School Road on Asti Road, south of Asti. 0 Comment
  SD254493  Toxicoscordion fontanum Ann Howald 2015-1-30 3311 Sonoma North Coast: Coastal terrace, ca. 3.0 miles southeast of Del Mar Point. 99 Comment
  UCD139836  Toxicoscordion fremontii Frederica Bowcutt 1996-3-24 2078 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 1 air mile south of Red Mountian. Along Lower Bald Mtn. Trail on second switchback. 487 Comment
  UCD81429  Tragopogon porrifolius M. Wiesendanger 1927-5-5 s.n. Sonoma Sonoma. Comment
  UCSB21811  Tragopogon porrifolius McCarthy, Sharon 1965-4-17 Sonoma At corner of 5th Street West and McArthur Street, Sonoma 25 Comment
  SEINET3153534  Trichostema laxum M. S. Baker 1898-6-12 675 Sonoma Geysers Comment
  UCD117567  Trientalis latifolia F. Bowcutt 1994-5-1 1756 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. Along Sonoma Creek just E of Bear Creek near bridge over Sonoma Creek. On Goodspeed trail about 30 yards from trail head. Along Sonoma Creek. 198 Comment
  CAS-BOT-BC166755  Trifolium Peter Rubtzoff 1974-8-5 7815 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-BC173638  Trifolium Peter Rubtzoff 1974-5-19 7442 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCSC006358  Trifolium Randall Morgan 1996-5-30 2980 Sonoma Bodega Bay, Bodega Marine Lab Comment
  UCSC010632  Trifolium R. Morgan 2014-5-12 5637 a Sonoma Bodega Head Comment
  JEPS65855 Image available Trifolium amoenum Joseph P. Tracy 1921-5-13 5548 Sonoma near Petaluma; Northern Coast Ranges 15 Comment
  CAS-BOT-BC217060  Trifolium amoenum Peter G. Connors 320 Sonoma West of Occidental Comment
  UCD107142  Trifolium amoenum Enoch Torpen 1940-1 s.n. Sonoma Valley Ford area. Comment
  UCR119035  Trifolium barbigerum var. andrewsii Beecher Crampton 1955-4-5 2416 Sonoma Santa Rosa Area, 2.5 miles south of Windsor, western boundary of Sonoma County Airport, along Mark West Road 91 Comment
  UCD107880  Trifolium bifidum R. Tofsrud 1948-5-1 s.n. Sonoma Santa Rosa. Comment
  POM21441  Trifolium bifidum var. decipiens A. A. Heller, H. E. Brown, A. H. Heller 1902-4-15 7339 Sonoma Santa Rosa. Comment
  UC16467  Trifolium depauperatum var. depauperatum Michener and Bioletti 1892-5-1 Sonoma Schellville Comment
  UCD108895  Trifolium fragiferum Frederica Bowcutt 1997-7-18 2186 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  UCR254855  Trifolium fragiferum Greg de Nevers 1995-6-16 10755 Sonoma Knights Valley Marsh on Bavarian Lion Ranch 197 Comment
  UCR255728  Trifolium fragiferum Greg de Nevers 1995-7-19 10761 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 488 Comment
  UCD143710  Trifolium grayi Beecher Crampton 1955-4-5 2411 Sonoma Starr Road 3 miles northeast of Trenton, along Windsor Creek. Comment
  UCD109772  Trifolium hirtum Frederica Bowcutt 1996-5-19 2122 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. Lower Bald Mountain trail. 426 Comment
  UCSC009060  Trifolium hydrophilum Randall Morgan 1995-5-25 2743 Sonoma Viansa Vineyard Comment
  RSA120928  Trifolium incarnatum Milo S. Baker 1957-05 13175 Sonoma Santa Rosa. Hwy 101 near S. F. State College. Comment
  SEINET12165542  Trifolium incarnatum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -158 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd., between Jimtown & Mercuryville 120 Comment
  UCD111243  Trifolium incarnatum Michael A. Vincent; Ethan H. Freid 1998-4-7 8170 Sonoma Cloverdale. Along S. Cloverdale Blvd., just of Rt. 101 exit. Comment
  UCR248354  Trifolium microcephalum Peter Rubtzoff 1983-8-28 9683 Sonoma Austin Creek, c. 0.5 mi. north of Hwy 116 on Cazadero Road 15 Comment
  UC631590  Trifolium microdon P. B. Kennedy 1915-5-31 Sonoma along trails; Del Mar Comment
  UCD33225  Trifolium microdon Beecher Crampton 1967-5-15 7926 Sonoma Sonoma County, Lytton. Comment
  UC16687  Trifolium oliganthum Edward Lee Greene 1892-1 Sonoma Knights Valley Comment
  UCD38485  Trifolium pratense Beecher Crampton 1955-6-17 2935 Sonoma 1/2 mile south of Guerneville. Comment
  CDA121  Trifolium repens D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .277 Sonoma Cavedale Rd. Comment
  UCR254917  Trifolium repens Greg de Nevers 1998-6-20 11289 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCR261660  Trifolium striatum Ann Howald 2003-5-15 2337 Sonoma Inner North Coast Ranges, Sonoma Mountains, south end, upper east slope, c. 0.1 mile south of Rodgers Creek 205 Comment
  SEINET12165539  Trifolium subterraneum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -194 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  SEINET10577425  Trifolium tridentatum var. tridentatum Michener MICHENER s.n. Sonoma Kenwood 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
  UC165494  Trifolium willdenovii Milo S. Baker 1898-4-26 693 Sonoma Santa Rosa Creek Canyon Comment
  UCD35299  Trifolium willdenovii Beecher Crampton 1955-4-5 2422 Sonoma Aong state Highway 104, 3 miles west of Schellville. Comment
  UC1541596  Trifolium wormskioldii H. E. and S. T. Parks 1930-5-9 603 Sonoma Knights Valley Comment
  UC729259  Trifolium wormskioldii A. A. Heller 1940-5-17 15630 Sonoma n of the town Bodega Bay Comment
  SEINET5869493 Image available Triglochin maritima L. S. Rose 1964-1 64055 Sonoma N end of Bodega Bay Comment
  CAS-BOT-BC520845  Trillium albidum Greg de Nevers 1993-3-28 10335 Sonoma Pepperwood Natural Preserve: 3450 Franz Valley Road, T9N, R8W, Sec. 35 and surrounding sections. ALong Mark West Creek and Leslie Road 304 Comment
  HSC22046  Trillium chloropetalum var. chloropetalum F. Demostene 1966-4-11 40 Sonoma 25 mi. W of Healdsburg Comment
  CAS-BOT-BC521309  Trillium rivale Peter Rubtzoff 1957-5-4 3317 Sonoma Duncans Mills Marsh area. Redwood forest bordering the Marsh in the west. Comment
  SEINET7075561  Triphysaria eriantha A. G. Vestal 1955-5-8 s.n. Sonoma South end of Bennett Mountain southeast of Santa Rosa. East Bennett Valley. 38? deg. 24' 31" North Latitude, -122? deg. 37' 52" West Longitude. UTM Zone 10, 532220mE, 4251005mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  HSC26831  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-3-23 349 Sonoma 3 mi. S of Healdsburg Comment
  UC730025  Triphysaria eriantha subsp. eriantha Leo F. Koch 1940-4-20 808 Sonoma along Plantation Rd two mi from Highway 1 Comment
  CHSC60152  Triphysaria eriantha subsp. rosea E. L. Knight 1988-4-1 1 Sonoma Ca 0.25 m ene of southernmost point of Bodega Head and 100 ft n of Pacific Ocean. 15 Comment
  CAS-BOT-BC376400  Triphysaria pusilla Greg de Nevers 1996-5-3 10796 C Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Trail to Franz Creek from Murry Gate. 400 Comment
  SEINET6987687  Triphysaria pusilla W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Maritime grassland 5 miles north of Fort Ross. Comment
  UC138992  Triphysaria versicolor subsp. faucibarbata J. W. Congdon 1880-6-6 Sonoma Petaluma Comment
  UC1537449  Triphysaria versicolor subsp. faucibarbata Gordon H. True Jr. 1936-4-7 406 Sonoma near Sonoma 91 Comment
  UCSB22950  Triphysaria versicolor subsp. faucibarbata McCarthy, Sharon 1965-4-17 Sonoma West of 5th Street opposite Betancourt Street Intersection 25 Comment
  UC1042399  Triphysaria versicolor subsp. versicolor Lewis S. Rose 1948-5-1 48097 Sonoma Valley Ford 13 Comment
  UC726290  Triphysaria versicolor subsp. versicolor A. A. Heller 1930-5-14 15083 Sonoma back of the bluff Bodega Bay (along the roadside near the town of Bay); back of bluff n of Bodega Bay Comment
  CAS-BOT-BC200095  Trisetum canescens P. B. Kennedy 1915-6-1 s.n. Sonoma Del Mar Comment
  UC1133276  Trisetum canescens H. S. Yates 1936-5-16 5609 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  UC766848  Trisetum canescens R. F. Hoover 1941-5-14 5096 Sonoma sw of Occidental (near Joy District School) Comment
  UCD36301  Trisetum canescens Beecher Crampton 1953-5-19 1297 Sonoma Sonoma County, 5 miles west of Calistoga, on Highway 128, at Napa County line. Comment
  UCD93496  Trisetum canescens Beecher Crampton 1955-6-17 2931 Sonoma Sonoma County, 3.3 miles west of Forestville, along State Highway 12. Comment
  UCD93633  Trisetum canescens R. Tofsrud 1941-4-1 157 Sonoma Rhododendron Park. Comment
  CAS-BOT-BC522356  Triteleia hyacinthina Peter Rubtzoff 1959-5-31 4087 Sonoma Freestone Marsh; Sonoma County Marshes Comment
  UCD139397  Triteleia laxa Mary M. Hektner; Sue Dakuzaku 1974-6-2 12 A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CLARK-A1528-1521  Triteleia laxa John C. Roos 1950-7-22 4866 Sonoma Jenner Comment
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Sep 13 2015
  RSA70138  Triteleia laxa F. W. Peirson, Mabel Peirson 1926-4-1 6547 Sonoma 6 miles south of Cloverdale. Comment
  CAS-BOT-BC527966  Triteleia peduncularis John Thomas Howell 1937-6-6 13037 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC200492  Triticum aestivum David L. Morgan 1956-5-18 s.n. Sonoma On State Hiway #12, 5.4 mi. S. of Santa Rosa city limits Comment
  UCD108657  Ulex europaeus T. I. Storer 1930-6-24 2153 Sonoma Near Bodega. Comment
  POM21294  Ulex europaeus A. A. Heller, H. E. Brown 1902-3-22 7308 Sonoma Among Redwood Trees W of Sebastopol Comment
  RSA699636  Ulex europaeus Keith E. Hoffmaster 1946-3-9 s.n. Sonoma Roadside, spreading thruoghout a hillside pasture. Near Petaluma. Comment
  POM149110  Umbellularia californica A. A. Heller, H. E. Brown 1902-3-10 5013 Sonoma Hills East of Santa Rosa. Comment
  CDA7733  Uropappus lindleyi D. G. Kelch 2007-5-13 7 .294 Sonoma Bouverie Preserve; E of Hwy 12 near Glen Ellen. Comment
  CAS-BOT-BC403980  Urtica dioica subsp. gracilis Peter Rubtzoff 1958-9-1 3965 Sonoma Vacation Beach, near Guerneville. Sandy bank of 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-BC404233  Urtica dioica subsp. holosericea Peter Rubtzoff 1958-8-17 3890 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road) Comment
  CAS-BOT-BC404225  Urtica dioica subsp. holosericea Peter Rubtzoff 1973-8-29 7279 Sonoma Sonoma Creek bottom near Auga [Agua] Caliente Road crossing west of Agua Caliente Comment
  SFV8773  Vaccinium ovatum J. C. Lee 1966-4-27 41 Sonoma Highway 116, 1 mile east of Guerneville. 30 Comment
  POM192687  Vaccinium parvifolium H. P. Bracelin 1930-7-27 22 Sonoma One mile N. of Fort Ross. Comment
  JEPS45856  Vancouveria planipetala Eleanor Armstrong 1932-5-18 475 Sonoma Camp Meeker 121 Comment
  SD88335  Vancouveria planipetala Darley F. Howe 1972-5-1 Sonoma Duncan Mills Pond 149 Comment
  CAS-BOT-BC76169  Vancouveria planipetala M. S. Baker 1899-5-6 s.n. Sonoma Green Valley, near Gallagher's. Comment
  JEPS33033  Vancouveria planipetala Elizabeth Van E. Ferguson Jun 8 1919-Jun 10 1919 248 Sonoma near Guernewood; Russian River, near Guernewood Comment
  JEPS62208  Veratrum fimbriatum Alice Griffin 1924-9-1 Sonoma Stewart's Point, nw Sonoma County Stewart's Point Comment
  RSA201200  Verbascum virgatum Walter Knight, Pat Watters 1963-7-19 s.n. Sonoma Gravenstein Highway inersection with US 101 Freeway, Cotati. Comment
  UCR256103  Verbena Greg de Nevers 1992-7-25 10227 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  UCR129499  Verbena lasiostachys var. scabrida Don Pendleton 1993-5-29 s.n. Sonoma North Coast Ranges, 5297 Westside Rd, Russian River Valley, c. 5 mi SW of Healdsburg 46 Comment
  CAS-BOT-BC164366  Veronica Peter Rubtzoff 1955-5-7 1825 Sonoma Guerneville Marsh. Comment
  RSA789959  Veronica americana Peter Rubtzoff 1954-6-6 1461 Sonoma Guerneville Marsh. Comment
  RSA264764  Veronica anagallis-aquatica Peter Rubtzoff 1972-6-23 6782 Sonoma Laguna de Santa Rosa northeast of Graton, ca 0.5 mi north of Guerneville Road crossing. Comment
  CAS-BOT-BC164360  Veronica arvensis Peter Rubtzoff 1959-6-20 4147 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC368091  Veronica peregrina Greg de Nevers 1998-5-5 11225 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat 400 Comment
  UCD124784  Veronica scutellata Malcolm A. Knobs; S. Galen Smith 1949-8-1 1107 Sonoma 2 miles E of Stewart's Point on road to Geyserville. Comment
  RSA799986  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC257977  Vicia Peter Rubtzoff 1974-5-26 7500 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  UCR255736  Vicia benghalensis Greg de Nevers 1998-8-25 11307 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa; along road to Weimar Flat 400 Comment
  UC764641  Vicia gigantea R. F. Hoover 1941-5-14 5098 Sonoma sw of Occidental (near Joy District School) Comment
  UCR254843  Vicia gigantea Greg de Nevers 1998-3-14 11147 Sonoma Duncans Landing Beach, north of Bodega bay 0 Comment
  UCR256113  Vicia lutea Greg de Nevers 1994-5-21 10524 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  SBBG3895  Vicia sativa H. and M. Dearing 1939-5-15 3382 Sonoma N of Fort Ross Comment
  RSA29239  Vicia sativa Joseph A. Ewan 1935-5-13 9245 Sonoma 2.5 miles west of Santa Rosa: Sebastopol Road. Comment
  SEINET7040131  Vicia sativa subsp. nigra A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  UCSB31791  Vicia villosa Townsend, J. 1977-5-30 Sonoma North side of Calif, state 116, 2 miles west of Forestville Comment
  UCSB31793  Vicia villosa Townsend, J. 1977-5-29 Sonoma On north side of Calif, state 12 in Freestone 304 Comment
  UCD15000  Vinca major Wesley Ebert 1977-4-9 13 Sonoma Sonoma County; along Copeland Creek, on the northwest corner of Sonoma State College; 42 Comment
  JEPS46282  Viola adunca Eleanor Armstrong 1933-4-14 740 Sonoma Bodega Hill Comment
  UC1023467  Viola adunca Leo Koch 1939-4-8 496 Sonoma near Plantation; North Bay, Baxman Ranch Comment
  UC1763362  Viola adunca Milo S. Baker 1898-3-15 5502 Sonoma near Sebastopol Comment
  POM134840  Viola douglasii A. A. Heller, H. E. Brown 1902-3-14 5062 Sonoma Near Windsor. Comment
  CDA122  Viola glabella D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .285 Sonoma Cavedale Rd. Comment
  CAS-BOT-BC536906  Viola glabella Peter Rubtzoff 1954-6-19 1496 Sonoma Sonoma County Marshes: Guerneville Marsh, along the margin of the Marsh where it borders a redwood forest Comment
  UC1761451  Viola lobata Milo S. Baker 1926-5-31 164 -1926 Sonoma Triniti road, 1 mi up Comment
  UC1761515  Viola lobata Milo S. Baker 1926-3-31 165 a Sonoma Triniti[sic] Road 1 mi from hwy Comment
  UC1749379  Viola lobata Milo S. Baker 1937-4-18 8633 Sonoma Hope Valley north of Chamberlain's House, ca. 3/4 miles Comment
  UC1761445  Viola lobata Milo S. Baker 1924-5-3 463 Sonoma Howell Mt., Pinecrest Comment
  UCD110909  Viola lobata G. F. Hrusa 1992-4-15 10376 Sonoma Along Cavedale Road, approximately 5 m. E of Boyes Hot Springs. Comment
  JEPS50443  Viola ocellata Vina W. Krager 1924-5-18 Sonoma Bodega Comment
  POM161242  Viola ocellata R. C. Bacigalupi 1926-5-2 1365 Sonoma Cazadero. Comment
  UCD110694  Viola ocellata Frederica Bowcutt 1996-5-22 2143 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 about 1.25 air miles SW of Red Mountain. Along Canyon Trail near lower elev trailhead. Just N of Sonoma Creek. Down slope of Adobe Canyon Road. 231 Comment
  CAS-BOT-BC385077  Vitis girdiana L. R. Abrams 1916-7-4 5799 Sonoma Road between Petrified Forest and Mark West Comment
  CAS-BOT-BC199897  Vulpia bromoides Catherine Best 1980-4-29 s.n. Sonoma Westerbecks [Westerbeke] Ranch near El Verano Comment
  CAS-BOT-BC199916  Vulpia bromoides Peter Rubtzoff 1957-5-11 3346 Sonoma Occidental Marsh Comment
  CAS-BOT-BC199894  Vulpia bromoides Mary P. Wells 1985-4-27 508 a Sonoma Monan's Rill, no. of St. Helena Road southeast of Calistoga Road Comment
  UCD93701  Vulpia microstachys K. Wagnon 1940-5-4 260 Sonoma Adobe Canyon. Comment
  CAS-BOT-BC199969  Vulpia microstachys var. ciliata John Thomas Howell 1943-4-18 17924 Sonoma Hills east of Aqua Caliente Comment
  CAS-BOT-BC184594  Vulpia microstachys var. pauciflora G. DeNevers 1981-6-4 1431 Sonoma On road cut top of W arm of Garrison Canyon Comment
  CAS-BOT-BC184597  Vulpia microstachys var. pauciflora Greg de Nevers 1990-5-1 9669 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. West of Three Tree Hill 457 Comment
  UC1024768  Vulpia microstachys var. pauciflora Leo Whitney 1935-4-14 2260 Sonoma near Occidental (Blunden's pasture) Comment
  POM206212  Vulpia myuros A. A. Heller 1902-4-4 5221 Sonoma Hills near Santa Rosa. Comment
  UCD161305  Vulpia myuros James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3687 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-BC185828  Vulpia myuros subsp. megalura G. DeNevers 1981-4-30 901 Sonoma At the Studio. Pepperwood Ranch Comment
  SEINET10604532  Vulpia myuros var. hirsuta A. Arthur Heller 1902-6-10 Heller 5681 Sonoma Santa Rosa. Comment
  CAS-BOT-BC128702  Whipplea modesta D. E. Breedlove 1980-6-28 44799 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC114970  Whipplea modesta Michener and Bioletti 1892-5-1 641 a Sonoma Woods Peak Comment
  UCD160300  Whipplea modesta James A. Neilson Jr. 1975-5-17 3195 Sonoma Robert Louis Stevenson State Park, Mt. St. Helena. (Exact location unknown. Elevation and coordinates estimated by label maker based on Neilson 3193.) 1165 Comment
  UCD117295  Whipplea modesta L. Whitney 1932-4-2 s.n. Sonoma Russian River. Comment
  RSA784486  Woodwardia Peter Rubtzoff 1971-9-3 6700 Sonoma Southeastern border of Spring Creek Reservoir area. Comment
  RSA784487  Woodwardia Peter Rubtzoff 1970-9-17 6391 Sonoma Forestville Marsh area. Comment
  RSA94266  Woodwardia fimbriata Peter Rubtzoff 1951-11-24 842 Sonoma Pitkin Marsh