Search Results — 2000 specimen records retrieved (1250 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC203225  Abutilon Peter Rubtzoff 1974-5-26 7497 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road Comment
  CAS-BOT-BC203226  Abutilon Peter Rubtzoff 1971-6-5 6509 Sonoma Bennett Valley Road, 4.25 mi. west of Glen Ellen Comment
  CAS-BOT-BC436992  Acaena pinnatifida var. californica J. W. Congdon 1880-4-1 s.n. Sonoma Petaluma Comment
  POM161248  Acaena pinnatifida var. californica Rimo Bacigalupi 1928-6-18 1903 Sonoma Beach at mouth of Salmon Creek, 2 miles N of Bodega Bay. Comment
  CAS-BOT-BC332753  Acer macrophyllum Peter Rubtzoff 1980-5-26 9449 Sonoma Russian River at Forest Hills, 5.5 mi. E of Guerneville. Comment
  CAS-BOT-BC332754  Acer macrophyllum Peter Rubtzoff 1953-5-17 1383 Sonoma Neeley Hill area S of Guerneville Comment
  UCD117035  Acer macrophyllum Loredo-Prendeville; Canon 1993-4-24 53 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. Road at confluence of Sonoma and Bear Creeks. 195 Comment
  UC971946  Acer negundo var. californicum Martha Meagher 1947-3-22 99 Sonoma county road one-half mi w Freezeout Creek (across Russian River from Duncan's Mills); Russina River, w of Freezeout 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
  CAS-BOT-BC30092  Achillea millefolium John Thomas Howell 1930-6-8 5270 Sonoma North end of Bodega Bay Comment
  CAS-BOT-BC400008  Achlys triphylla Greg de Nevers; Susan Charnley 1987-3-28 8129 Sonoma Sea Ranch, along the Gualala River 20 Comment
  CAS-BOT-BC166737  Achyrachaena mollis Peter Rubtzoff 1963-6-18 5180 Sonoma Bennett Mountain Lake. Comment
  POM55004  Achyrachaena mollis A. A. Heller, H. E. Brown 1902-4-16 s.n. Sonoma Fields east of Santa Rosa Comment
  RSA783728  Achyrachaena mollis Peter Rubtzoff 1963-6-18 5180 Sonoma Bennett Mountain Lake. Comment
  SBBG3390  Acmispon cytisoides H. and M. Dearing 1939-5-14 3378 Sonoma near Fort Ross Comment
  CAS-BOT-BC26654  Acmispon gracilis Amos Arthur Heller 1902-6-24 5754 Sonoma Near Burke's Sanitarium Comment
  OBI13223  Acmispon junceus var. biolettii Robert F. Hoover 1964-9-8 9286 Sonoma Kolmer Gulch (near Fort Ross) Comment
  UCD35511  Acmispon junceus var. biolettii Beecher Crampton 1957-7-22 4370 Sonoma State Hwy. 1, 0.9 mile south of Stewart's Point. Comment
  CAS-BOT-BC29847  Adenocaulon bicolor Volney Rattan 1877-6-17 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC30276  Adenocaulon bicolor A. A. Heller 1902-6-26 5771 Sonoma Along Sonoma Creek at the foot of Mt. Hood Comment
  CAS-BOT-BC361370  Adenostoma fasciculatum Greg de Nevers 1997-3-20 10921 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill 400 Comment
  CHSC60064  Adiantum jordanii H. A. McLane 1980-3-29 3 Sonoma 4 mi n of Calistoga Road from California State Highway 12, 60 ft e of road. Comment
  CAS-BOT-BC9072  Aegilops triuncialis Mary P. Wells 1987-7-7 892 Sonoma Spring Lake Park, Santa Rosa 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-BC29576  Agoseris apargioides var. eastwoodiae Rimo Bacigalupi 1928-6-18 1877 Sonoma At mouth of Salmon Creek, 2 miles south of Bodega Bay Comment
  UCD158808  Agoseris heterophylla James A. Neilson Jr. 1974-3-27 2943 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC13168  Agoseris hirsuta Alice Eastwood 1915-6-29 4846 Sonoma Bodega Point Comment
  CAS-BOT-BC451164  Agrimonia gryposepala Greg de Nevers 1991-7-20 9765 Sonoma Ida Clayton Road, at the big spring about 7 miles from Hwy 128 609 Comment
  RSA0065938  Agropyron Greg de Nevers 1989-04 9067 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. 100 Comment
  CAS-BOT-BC176392  Agrostis Peter Rubtzoff 1967-8-22 5854 Sonoma SE of Lower Salmon Creek Marsh Comment
  CAS-BOT-BC209998  Agrostis Peter Rubtzoff 1967-8-22 5855 Sonoma SE of Lower Salmon Creek Marsh Comment
  CAS-BOT-BC210006  Agrostis Peter Rubtzoff 1964-7-29 s.n. Sonoma Brooks Gulch Marsh. Comment
  RSA0051268  Agrostis Greg de Nevers 1992-6-26 10201 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 91 Comment
  RSA785752  Agrostis Peter Rubtzoff 1971-6-29 6580 Sonoma Pitkin Marsh, near Forestville Comment
  RSA785907  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca 1 air mile WSW of Cunningham Station Comment
  RSA785929  Agrostis Peter Rubtzoff, H. A. Froebe 1971-5-30 6501 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road. Comment
  UCD163998  Agrostis Peter Rubtzoff 1977-9-3 9126 Sonoma Perry Marsh. Comment
  SACT000118  Agrostis alba Herbert Mason 1946-7-4 Sonoma Pitkin Marsh, btw Santa Rosa and Forestville Comment
  UCR119036  Agrostis clivicola Beecher Crampton 1957-7-11 4336 Sonoma Central Coast, 1.7 miles north of Salmon Creek, Sonoma Coast State Park along State Highway 1 30 Comment
  UCD51897  Agrostis densiflora Beecher Crampton 1957-7-11 4339 Sonoma Sonoma Coast State Park, 2.5 miles north of Salmon Creek, just south of Portugese Beach. Comment
  UCD51997  Agrostis densiflora Beecher Crampton 1957-7-11 4328 Sonoma Sonoma Coast State Park, 0.9 mile north of Salmon Creek. Comment
  CAS-BOT-BC126967  Agrostis exarata A. A. Heller 1902-6-7 5654 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  JEPS97573  Agrostis exarata R. D. Stone 1983-6-16 554 Sonoma the Little Geysers, upper Big Sulphur Creek drainage 701 Comment
  UC1146692  Agrostis exarata Freed W. Hoffman 1943-10-2 2171 Sonoma on Ross Road near Graton; North Coast Ranges Comment
  UC1153924  Agrostis exarata Beecher Crampton 1957-7-22 4361 Sonoma along State Highway 1 8.0 mi n Stewart's Point Comment
  UC573815  Agrostis exarata H. S. Yates 1937-6-6 6577 Sonoma 3 mi w Santa Rosa; Santa Rosa Quad. Comment
  UCD38653  Agrostis exarata Beecher Crampton 1956-6-26 3619 Sonoma 8.5 miles northwest of Calistoga. Comment
  UCD52135  Agrostis exarata Freed W. Hoffman 1941-6-29 2069 Sonoma Sonoma Mountain Road. Comment
  UCD52441  Agrostis exarata H. S. Yates 1937-6-6 6577 Sonoma 3 miles W of Santa Rosa. 45 Comment
  CDA13129  Agrostis exarata var. monolepis G. F. Hrusa, R. Gross 1996-6-3 13064 Sonoma North Coast Biodiversity Arena; W end of Diamond Mtn. Rd. Lower of two pools, approx 150 meters apart. 2 m. SW of Calistoga. Comment
  RSA129614  Agrostis hallii H. S. Yates 1936-5-16 5582 Sonoma 1 mile northeast of Graton. 30 Comment
  UC36899  Agrostis hallii Michener and Bioletti 1893-6-10 109 Sonoma Hood's Peak Comment
  UC76872  Agrostis hallii Michener and Bioletti 1892-7-5 2256 a Sonoma Skaggs Springs Comment
  UCD66731  Agrostis microphylla Leo Koch 1940-4-22 837 Sonoma Above Sulfur Creek Geysers. Comment
  UCR279856  Agrostis microphylla Peter Rubtzoff, Tim Tunison, Nancy Harrison 1976-6-5 8584 Sonoma North Coast Ranges, False Lake Meadow area, Annadel State Park 244 Comment
  CAS-BOT-BC139116  Agrostis oregonensis Peter Rubtzoff 1951-6-16 261 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UCD53168  Agrostis pallens A. A. Beetle; G. L. Stebbines Jr. 1942-6-4 3568 Sonoma 10.2 miles northeast of Santa Rosa on road to Calistoga. Comment
  UCD53178  Agrostis pallens P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC138597  Agrostis stolonifera John Thomas Howell 1947-6-26 23302 Sonoma Cunningham Marsh. Comment
  RSA94459  Agrostis stolonifera Peter Rubtzoff 1951-7-21 514 Sonoma Pitkin Marsh, near Forestville, between the Upper and the Lower marshes Comment
  SEINET4342106  Agrostis stolonifera J. B. Davy 1899-7-22 6003 Sonoma Guerneville Comment
  CAS-BOT-BC47988  Ailanthus altissima Greg de Nevers 1992-6-26 10185 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek. 91 Comment
  RSA94464  Aira caryophyllea Peter Rubtzoff 1951-6-16 230 Sonoma Lower part of the upper marsh. Comment
  CAS-BOT-BC138399  Aira caryophyllea var. capillaris John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54665 Sonoma Bouverie Audubon Preserve, about 1.5 mile east of Glen Ellen near Stuart Creek. 137 Comment
  CAS-BOT-BC138189  Aira praecox Catherine Best 1980-9-18 s.n. Sonoma On the south side of the mouth of the Russian River. Comment
  UC1023613  Aira praecox Virginia Bufford 1935-5-19 54 Sonoma Portugese Beach; n end, coming up cliff Comment
  SEINET11689067  Aira praecox H. K. Wagnon 1989-1 1873 Sonoma Salt Pt. State Park 0 Comment
  RSA201189B  Alisma lanceolatum Peter Rubtzoff 1958-7-20 3783 Sonoma Laguna de Santa Rosa, NE of Graton (near Guerneville Road). Comment
  UCD137919  Alisma lanceolatum Peter Rubtzoff 1956-9-11 2845 Sonoma Vacation Beach, 1.5 miles below Guerneville. Comment
  UC1130600  Alisma plantago-aquatica H. S. Yates 1936-5-17 5633 Sonoma 2 mi ne Graton; Sebastopol Quad. 30 Comment
  CAS-BOT-BC445467  Alisma triviale Peter Rubtzoff 1962-7-28 5011 Sonoma Ross Marsh area. Green Valley Creek bank near Ross Station Rd. crossing. Comment
  SEINET7852114  Allium Unknown 1974-1 6432 Sonoma Salmon Creek, Pacific coastal area. Ca. 1 at Duncan Point along living, rocky coastal cliffs. Comment
  CAS-BOT-BC462383  Allium amplectens Milo S. Baker 1927-6-19 2211 a Sonoma Macartney Woods Comment
  CAS-BOT-BC462384  Allium amplectens L. S. Rose 1931-4-28 s.n. Sonoma Between Black Point and Shellville Comment
  SEINET181187  Allium amplectens Bassett Maguire, R Maguire; C. B. Maguire 1934-6-7 15081 Sonoma 2 mi N of Geyserville Comment
  POM180615  Allium dichlamydeum J. T. Howell 1930-6-8 5282 Sonoma 8.5 miles north of Bodega Bay. Comment
  CAS-BOT-BC469101  Allium dichlamydeum Dorothy Scherer 1996-6-3 045 Sonoma 1 mile north of park headquarters, Fort Ross State Historic Park 12 Comment
  CAS-BOT-BC469102  Allium dichlamydeum Milo S. Baker 1932-5-3 5948 Sonoma 1 mile north of Salmon Creek Comment
  CAS-BOT-BC472797  Allium neapolitanum Nina Boyle 1941-3-1 s.n. Sonoma Rio Nido Comment
  SEINET3879931  Allium unifolium Dennis Taniguchi 1977-4-30 31 Sonoma Moist, heavy clay soil in an orchard on the bank of a tributary of Atascadero Creek on the Morita Ranch, 2369 Sanders Rd., 0.8 mi from the jct. of Watertrough Rd. near Sebastopol.; 0 Comment
  CAS-BOT-BC169652  Alnus rhombifolia Walter Knight; Irja Knight 1963-10-27 438 Sonoma Stream bank on Spring Mt. road Comment
  CAS-BOT-BC251211  Alnus rhombifolia Peter Rubtzoff 1960-9-14 4550 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  RSA800598  Alnus rubra Peter Rubtzoff 1960-6-11 4504 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC138058  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1955-5-14 1835 Sonoma Ross Marsh. Comment
  JEPS45803  Alopecurus aequalis var. sonomensis Eleanor Armstrong 1932-5-25 173 Sonoma 3 mi. w. Graton (<Schackley> Flat) 45 Comment
  CAS-BOT-BC137902  Alopecurus saccatus Peter Rubtzoff 1969-5-24 6066 Sonoma Vernal pool 6.5 miles northeast of Penngrove, on Lichan Road. 426 Comment
  SEINET10511202  Alopecurus saccatus A. Arthur Heller 1902-6-10 Heller 5685 Sonoma Santa Rosa. Comment
  POM223643  Amaranthus retroflexus L. S. Rose 1935-9-11 35625 Sonoma 2 mi N of Healdsburg 40 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
  CAS-BOT-BC135667  Amelanchier utahensis A. A. Heller 1903-4-24 6617 Sonoma Woods near Cazadero Comment
  SEINET3917971  Ammophila arenaria K. Thorne 1984-11-21 3659 Sonoma Sea Ranch, 2.5 mi S of Gualala, stabilized coast dunes old sheep ranch.; 0 Comment
  SEINET7062934  Amorpha californica var. napensis A. G. Vestal 1947-5-16 s.n. Sonoma About 8.2 miles east of Windsor on Porter Creek Road. UTM Zone 10, 528660mE, 4266821mN. (WGS84/NAD83). 329 Comment
  UC80627  Amorpha californica var. napensis Michener and Bioletti May, 1893 Sonoma Nun's Canyon Comment
  CAS-BOT-BC222275  Amsinckia Alice Eastwood 1933-5-7 18843 a Sonoma Sonoma Comment
  CAS-BOT-BC222276  Amsinckia John Thomas Howell 1934-3-25 11774 Sonoma Lakeville Comment
  CHSC21835  Amsinckia intermedia Robert A. Schlising 1962-3-31 2113 Sonoma In pastured field. Comment
  UC486489  Amsinckia intermedia H. E. and S. T. Parks 1930-5-9 609 Sonoma Knights Valley Comment
  UC1073292  Amsinckia spectabilis George B. Rossbach 1955-3-19 454 Sonoma northern and highest hill on Bodega Head 76 Comment
  UC1084536  Amsinckia spectabilis Peter Kamb Ray 1952-5-30 2298 s Sonoma Hill 108 between Horseshoe Cove and Mussel Point (n end Bodega Bay); Bodega Head 30 Comment
  SEINET12337128  Amsinckia spectabilis C. Best, Irja, W.; Knight, T. 1991-1 6601 Sonoma Bodega Marine Preserve Comment
  HSC71392  Angelica californica J. M. DiTomaso 1980-6-13 1602 Sonoma 4900 Trinity Rd., between Glen Ellen and Oakville Comment
  HSC71420  Angelica californica J. M. DiTomaso 1980-7-8 1738 Sonoma Summit of road between Glen Ellen and Oakville 457 Comment
  SD109160  Angelica californica Joseph M. DiTomaso 1980-6-13 1592 Sonoma 4900 Trinity Road, between Glen Ellen and Oakville Comment
  UC640633  Angelica californica Alice Eastwood, John Thomas Howell 1938-7-6 6084 Sonoma Alder Glen Springs Comment
  CAS-BOT-BC221435  Angelica hendersonii David D. Keck; J. Clausen 1935-6-15 3373 Sonoma 1 mile north of Salmon Creek Comment
  CAS-BOT-BC221436  Angelica hendersonii David D. Keck; J. Clausen 1935-6-15 3373 Sonoma 1 mile N. of Salmon Creek Comment
  JEPS16077  Angelica hendersonii W. L. Jepson 1931-7-19 15940 Sonoma Salmon Creek 12 Comment
  POM187931  Anthemis cotula Marcus E. Jones 1931-7-5 29120 Sonoma The Geysers. Comment
  CAS-BOT-BC173667  Anthemis cotula Peter Rubtzoff 1958-7-5 3735 Sonoma Atascadero Creek Marsh. Comment
  UCD56145  Anthoxanthum aristatum Leo Koch 1940-4-22 841 Sonoma along Highway 101, north of Windsor. Comment
  CAS-BOT-BC280670  Anthoxanthum occidentale Mary P. Wells 1983-8-3 156 Sonoma Timber Preserve of Oceanic of California Inc., The Sea Ranch Comment
  UCD85329  Anthoxanthum occidentale Collector Unknown 1941-3-1 s.n. Sonoma Garden in S. R. (Bud's) Comment
  UCD56240  Anthoxanthum odoratum Chris Bowen 1974-5-18 118 Sonoma near State Highway 1, Sea Ranch, Unit 7 Owners' Map, near Whalers' Reach. Comment
  SD133976  Antirrhinum vexillocalyculatum subsp. breweri Greg de Nevers 1987-6-1 8185 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 99 Comment
  CAS-BOT-BC237924  Antirrhinum virga W. W. Carruth 1901-6-1 s.n. Sonoma Near Cazadero Comment
  CAS-BOT-BC237923  Antirrhinum virga Milo S. Baker 1926-1-1 230 a-Local Sonoma Macartney Ranch - Los Gulicos [Guilicos] Val. Comment
  CAS-BOT-BC395018  Aquilegia formosa Ella Dales Cantelow 1939-4-10 2601 Sonoma 2.3 mi s. of Stewarts Point Comment
  UCD166536  Arbutus menziesii Dylan O. Burge 2016-1-31 2037 Sonoma Russian River Valley, just S of Hopland, roadside on U.S. Route 101. 170 Comment
  SEINET7258086  Arbutus menziesii L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa Comment
  RSA629224  Arctostaphylos Jon E. Keeley 1993-9-11 24774 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1388332  Arctostaphylos Freed W. Hoffman 1947-2-28 764 Sonoma near Healdsburg (headwaters of creek (which is a branch of Mill Creek)); North Coast Ranges, Wild Hog Ridge, Palmer Creek Comment
  UC1389135  Arctostaphylos A. E. Wieslander 1938-10-29 833 Sonoma Vine Hill Comment
  UC424805  Arctostaphylos Milo S. Baker 1930-3-8 3899 b Sonoma Frei Bros. Ranch Vine Hill Region Comment
  CHSC67489  Arctostaphylos bakeri James D. Jokerst 1989-4-13 3095 Sonoma NE side of Hawson Grade Rd 0.4 mi N of its junction with Stoetz Rd., ca. 1 mi NE of Camp Meeker, N of Occidental, W of Santa Rosa. 228 Comment
  CHSC67658  Arctostaphylos bakeri James D. Jokerst; Virginia Getz 1988-3-16 3049 Sonoma Healdsburg near water reservoir across highway from Simi Winery. Comment
  UC1220417  Arctostaphylos bakeri B. F. Smith 1962-8-3 28 Sonoma 3.5 mi nnw Occidental; Quad. 64B2 158 Comment
  UC1281479  Arctostaphylos bakeri H. E. McMinn 1936-4-5 4409 Sonoma two mi n Occidental Comment
  UC518012  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10956 Sonoma 2 mi e Occidental Comment
  UCD50406  Arctostaphylos bakeri E. Armstrong 1934-3-26 932 Sonoma 3 m. N. Camp Meeker. 91 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
  SBBG28818  Arctostaphylos bakeri subsp. bakeri L. S. Rose 1934-2-22 34032 Sonoma 2 mi E of Occidental Comment
  RSA622719  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24760 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA622722  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24769 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UCD50522  Arctostaphylos canescens Frederica Bowcutt 1966-5-19 2135 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along the ridgeline and on the Napa/Sonoma County line, about 1/2 air miles E of Bald Mtn. Gray Piine Trail. 731 Comment
  CDA30999  Arctostaphylos canescens subsp. canescens D. G. Kelch, Troy McGregor 2010-8-22 10 .348 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  UC1309655  Arctostaphylos canescens subsp. sonomensis A. E. Wieslander 1939-3-18 876 Sonoma s edge Rincon Hills; Santa Rosa Quadrangle 121 Comment
  UC535019  Arctostaphylos canescens subsp. sonomensis H. F. Copeland 1933-3-18 A 12 Sonoma n Santa Rosa; Rincon Ridge Comment
  SBBG5404  Arctostaphylos columbiana H. and M. Dearing 1939-5-15 3392 Sonoma N of Fort Ross Comment
  UC549698  Arctostaphylos columbiana J. E. Adams 1935-3-28 730 Sonoma seven mi n Fort Ross Comment
  UC571194  Arctostaphylos columbiana H. L. Mason 1928-4-8 4290 Sonoma Fort Ross Comment
  UCD50681  Arctostaphylos columbiana Freed W. Hoffman 1947-12-1 2747 Sonoma Salt Point. Comment
  CAS-BOT-BC24995  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5773 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  POM367502  Arctostaphylos densiflora L. S. Rose 1934-2-22 34031 Sonoma Vine Hill Region, 10 mi. W of Santa Rosa, Type & only locality. Comment
  RSA164632  Arctostaphylos densiflora Percy C. Everett 1963-11-21 24564 Sonoma Vine Hill School Rd., west of Vine Hill School. N of Sebastopol. 76 Comment
  SBBG25391  Arctostaphylos densiflora R. Gankin 1957-11-1 247 Sonoma Vine Hill School Rd, 0.1 mi E of jct with Vine Hill Rd, ca. 10 mi W of Santa Rosa Comment
  UC1120149  Arctostaphylos densiflora C. M. Belshaw 1936-3-7 1564 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC571087  Arctostaphylos densiflora H. L. Mason 1931-3-7 5805 Sonoma 12 mi w Santa Rosa; Vine Hill School Comment
  UCD50800  Arctostaphylos densiflora Roman Gankin 1966-3-3 693 Sonoma Vine Hill School Road, ca. 10 miles west of Santa Rosa. Comment
  CDA38591  Arctostaphylos densiflora T. C. Fuller 1958-5-24 3997 Sonoma Vinehill District. 0 Comment
  CDA38592  Arctostaphylos densiflora T. C. Fuller 1958-5-24 3997 Sonoma Vinehill District. 0 Comment
  CAS-BOT-BC23278  Arctostaphylos glandulosa subsp. cushingiana H. F. Copeland 1933-3-18 A 14 Sonoma Vine Hill region on College Avenue Highway, west of Santa Rosa. Comment
  CAS-BOT-BC23286  Arctostaphylos glandulosa subsp. cushingiana Walter Knight; Irja Knight 1986-3-23 5367 Sonoma On Geysers Road near Mercuryville at junction of private road to Sulphur Peak. 822 Comment
  CAS-BOT-BC23290  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1933-4-1 10928 Sonoma Slopes of Triniti Mt., 2 miles NE of Glen Ellen Comment
  JEPS98887  Arctostaphylos glandulosa subsp. cushingiana James Roof 1967-3-19 Sonoma W of Healdsburg (Dorman Canyon Road); Dry Creek watershed Comment
  RSA631180  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1996-6-22 27487 Sonoma Stewarts Road ca. 10 km W of Geyserville. 420 Comment
  UC1120216  Arctostaphylos glandulosa subsp. glandulosa C. M. Belshaw 1936-3-8 1572 Sonoma 1 1/2 mi n County Farm; Santa Rosa Quadrangle, Rincon Ridge Comment
  UCD50863  Arctostaphylos hispidula Walter Knight; Irja Knight and Stephen W. Edwards 1985-1-27 5174 Sonoma 7.7 miles from west end of Sonoma Lake bridge on Rockpile Road. Comment
  CAS-BOT-BC39109  Arctostaphylos hispidula Walter Knight; Irja Knight; P. V. Wells 1985-12-30 6325 Sonoma Rockpile Road above Lake Sonoma Comment
  RSA339410  Arctostaphylos hispidula Walter Knight, Irja Knight, Stephen W. Edwards 1985-1-27 5172 Sonoma south of Mt. Tom 5.1 miles west on Kelly Road from Rockpile Road junction 609 Comment
  SEINET11993016  Arctostaphylos hispidula W. Knight, Knight, I.; Edwards, S. W. 1985-1 5172 Sonoma S of Mt. Tom, 5.1 mi W of Kelly Road from Rockpile Road junction 610 Comment
  CAS-BOT-BC38989  Arctostaphylos manzanita Roger Raiche 1983-7-4 30475 Sonoma East Austin Creek State Rec. Area, Morrison Ridge above Gilliam Creek, along old mine road. 274 Comment
  CAS-BOT-BC38994  Arctostaphylos manzanita Roger Raiche; Stephen W. Edwards 1983-6-9 101 Sonoma The Cedars. On serpentinite, east of ridge on Twitchell property near Cazadero. 274 Comment
  CDA11186  Arctostaphylos manzanita G. F. Hrusa 1989-1-2 5803 Sonoma North Coast Biodiversity Arena; NW side of Mt. St. Helena near summit of Chalk Mtn. off Ida Clayton Rd. Comment
  UCD160866  Arctostaphylos manzanita James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3304 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD52230  Arctostaphylos manzanita Roman Gankin; W. R. Hildreth 1967-10-3 1068 Sonoma Vine Hill School Road; ca. 1/2 mile east of Vine Hill Road. Comment
  RSA633050  Arctostaphylos manzanita Jon E. Keeley 1993-9-11 24812 Sonoma Vinehill School Road [near Graton, E of Pitkin Marsh] 90 Comment
Read comments
Feb 9 2014
  SEINET11987219  Arctostaphylos manzanita W. Knight, Knight, I. 1980-1 3857 Sonoma S end of Vine Hill Rd (E side) near Graton Comment
  SEINET11990957  Arctostaphylos manzanita Unknown 1983-1 30585 B Sonoma Layton Mine, Austin Creek, The Cedars Comment
  SEINET11990959  Arctostaphylos manzanita Unknown 1983-1 30499 C Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990960  Arctostaphylos manzanita Unknown 1983-1 30499 B Sonoma near entrance to public landfill site, rd to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990986  Arctostaphylos manzanita W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4758 Sonoma Parker Hill Rd, Santa Rosa 183 Comment
  SEINET11991011  Arctostaphylos manzanita W. Knight, Knight, I. 1983-1 4699 Sonoma Trinity Grade 300 Comment
  RSA21886  Arctostaphylos manzanita subsp. bakeri Alice Eastwood, John Thomas Howell 1939-4-2 7376 Sonoma Near Camp Meeker on road to Monte Rio Comment
  CAS-BOT-BC38948  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1918-9-3 7950 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38706  Arctostaphylos manzanita subsp. manzanita G. DeNevers 1981-11-20 1883 Sonoma In the Garrison Canyon 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
  POM209912  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 9 Sonoma Residence of M.S. Baker, at west base of Mt. Hood. Comment
  UC1121475  Arctostaphylos manzanita subsp. manzanita A. E. Wieslander 1938-10-29 835 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC1388363  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-2-28 758 Sonoma near Healdsburg (creek is branch of Mill Creek); North Coast Ranges, Wild Hog Ridge, headwaters of Palmer Cre Comment
  UC1388368  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-3-11 822 Sonoma creek is branch of Dutch Bill Creek North Coast Ranges, Duvoul Creek Comment
  UC518977  Arctostaphylos manzanita subsp. manzanita J. Clausen 1933-3-26 750 Sonoma Baker Ranch Kenwood, Adobe Canyon Comment
  UC909869  Arctostaphylos manzanita subsp. manzanita J. E. Adams 1934-3-28 727 Sonoma 4 or 5 mi from Seaview (Cazadero Rd) Comment
  CAS-BOT-BC38689  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-6-15 6691 Sonoma Thicket, 1 mile N. of Sebastapool Comment
  CAS-BOT-BC38694  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight; Jacob Sigg 1981-3-11 4158 Sonoma From Strybing Arboretum, Golden Gate Park, San Francisco, #68-88, via Univ. of Cal. Davis, their #67.718. Comment
  CAS-BOT-BC56921  Arctostaphylos nummularia Mary P. Wells 1983-8-4 s.n. Sonoma Stump Beach, Salt Point State Beach Comment
  SBBG115507  Arctostaphylos nummularia subsp. nummularia A. T. Leiser 1968-1-16 Sonoma Sea Ranch 106 Comment
  CAS-BOT-BC43881  Arctostaphylos stanfordiana Lewis S. Rose 1955-2-28 55008 Sonoma 2 mi. w. of Graton 121 Comment
  CAS-BOT-BC47336  Arctostaphylos stanfordiana Lewis S. Rose 1955-2-28 55009 Sonoma 2 mi. w. of Graton. Road to Occidental. 121 Comment
  JEPS98844  Arctostaphylos stanfordiana unknown 1967-3-19 Sonoma W of Healdsburg (on Dorman Canyon Rd); Dry Creek Watershed 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
  RSA636812  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24752 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636819  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24742 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636822  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24739 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC535025  Arctostaphylos stanfordiana H. F. Copeland 1933-3-18 A 6 Sonoma near Santa Rosa; Rincon Ridge Comment
  UC674756  Arctostaphylos stanfordiana E. A. Goldman 1907-12-29 Sonoma se slope Mt. St. Helena 1066 Comment
  SEINET7267257  Arctostaphylos stanfordiana L. Fallon 1939-1-6 s.n. Sonoma 1 mile north of Santa Rosa Comment
  JEPS95233  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  POM181015  Arctostaphylos stanfordiana subsp. stanfordiana J. T. Howell 1931-3-14 5771 Sonoma Vine Hill District Comment
  POM209919  Arctostaphylos stanfordiana subsp. stanfordiana H. F. Copeland 1933-3-18 A- 6 Sonoma Rincon Ridge, north of Santa Rosa. Comment
  RSA178044  Arctostaphylos stanfordiana subsp. stanfordiana R. F. Thorne 1965-4-20 34375 Sonoma 4 mi. up Cavedale Rd., ca. 6 mi. N of Sonoma. 457 Comment
  RSA201846  Arctostaphylos stanfordiana subsp. stanfordiana Roman Gankin 1966-3-3 687 Sonoma 3.1 miles east of junction with State Highway 12. Comment
  SBBG28448  Arctostaphylos stanfordiana subsp. stanfordiana H. F. Copeland 1933-3-18 A 6 Sonoma Rincon Ridge, near Santa Rosa Comment
  RSA96695  Arctostaphylos stanfordiana subsp. stanfordiana P. C. Everett, E. K. Balls, George B. Everett 1954-10-20 20376 Sonoma 4 mi. s.w. of Lake-Sonoma Co. line, n.w. to w. slope Mt. St. Helena. 640 Comment
  SEINET11990990  Arctostaphylos stanfordiana var. repens W. Knight, Knight, I. 1983-1 4726 Sonoma Tilden Botanic Garden, Berkeley, orig. from Rincon Ridge near Santa Rosa Comment
  SDSU2845  Arctostaphylos viscida D. F. Howe 1972-2-20 4805 Sonoma Trinity Road, Mt. Mood Range. Note: Label states 5,800 feet altitude, beyond maximum for county, changed to 2,800 feet. 878 Comment
  RSA202101  Arctostaphylos viscida subsp. pulchella Freed W. Hoffman 1947-2-28 762 Sonoma Near Guerneville, headwaters of Gilliam Creek. 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
  CAS-BOT-BC47471  Arctostaphylos viscida subsp. viscida C. H. M. 1907-7-27 s.n. Sonoma Mt. St. Helena, Calif. Near summit 1st ridge on road from Middletown to Knight's Valley. 731 Comment
  CDA20097  Arctotheca prostrata G. Bjork 2003-3-24 PDR 1279789 Sonoma North Coast Ranges; at 4052 Hessel Rd, Sebastopol. 0 Comment
  UC1518542  Aristida ternipes var. hamulosa Barbara Malloch Leitner 1984-8-10 Sonoma 1/2 mi n Socrates Mine Rd. (ca 1 mi e of Big Sulphur Creek); Little Geysers Comment
  CAS-BOT-BC400489  Aristolochia californica John Thomas Howell 1934-2-22 11733 Sonoma Santa Rosa Comment
  UC543758  Aristolochia californica M. Stason and L. Roush 1926-2-28 Sonoma Hoods Peak Comment
  RSA301116  Armeria maritima subsp. californica D. C. Michener 1982-7-26 4124 Sonoma Gualala Point county park just south of the Mendocino Co line on CA 1. Comment
  CDA5448  Arnica discoidea D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .281 Sonoma Cavedale Rd. Comment
  RSA129574  Arrhenatherum elatius H. S. Yates 1937-5-30 6557 Sonoma 1 1/2 miles N of Freestone. Comment
  RSA785845  Arrhenatherum elatius Peter Rubtzoff 1979-8-5 9302 Sonoma Freestone Marsh area. Along Bohemian Highway at Freestone Flat Road junction, SE of Freestone marsh. Comment
  CAS-BOT-BC84951  Artemisia californica Wm. Mrs. Matthaie 1964-11-3 s.n. Sonoma Hills about 2 mi. SE of Sonoma. Comment
  UC892496  Artemisia pycnocephala Milo S. Baker 1932-6-10 5878 Sonoma next beach n of Salmon Creek Comment
  UCD56044  Arundinaria J. Alexander 1921-11-1 s.n. Sonoma Healdsburg. Comment
  CAS-BOT-BC376327  Asteraceae Greg de Nevers 1994-4-1 10517 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Cresta horse pasture 400 Comment
  CAS-BOT-BC477894  Asteraceae Peter Rubtzoff 1974-9-8 7891 Sonoma Forest Hills. 5.5 mi. east of Guerneville. Comment
  RSA227214  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1957-6-28 3384 Sonoma Ducans Mills Marsh Comment
  UC71465  Athyrium filix-femina var. cyclosorum J. Burtt Davy 1896-7-22 4145 Sonoma Russian River Comment
  CAS-BOT-BC17428  Athysanus pusillus A. A. Heller; H. E. Brown 1902-3-24 5142 Sonoma Hills East of Santa Rosa. Comment
  CAS-BOT-BC290689  Atriplex Peter Rubtzoff 1956-9-15 2898 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC176182  Avena Peter Rubtzoff 1972-5-25 6766 Sonoma Laguna, Chileno Valley Comment
  LA11004  Avena barbata Nesta Dunn; 1932-5-15 sn Sonoma Santa Rosa Comment
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Dec 29 2014
  UCD166116  Avena fatua Peter Rubtzoff 1972-5-25 6766 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC98648  Baccharis douglasii G. DeNevers 1981-7-11 1746 A Sonoma Pepperwood Ranch - at the big spring at the Skovie Comment
  JEPS40663  Baccharis glutinosa W. L. Jepson 1921-9-12 9481 Sonoma Alexander Valley 45 Comment
  UC727746  Baccharis glutinosa Milo S. Baker 1946-7-28 11539 Sonoma Sear's Point Highway Comment
  UCD148380  Baccharis glutinosa Peter Rubtzoff 1955-9-10 2129 Sonoma Guerneville Marsh. Comment
  UCR279607  Baccharis glutinosa Peter Rubtzoff 1955-9-10 2130 Sonoma North Coast Ranges, Guerneville Marsh 15 Comment
  SD39664  Baccharis pilularis Edith A. Purer 1932-7-21 Sonoma Bodega Bay. Comment
  CAS-BOT-BC98218  Baccharis salicifolia Mrs. Alexander McCallum 1898-10-1 s.n. Sonoma Preston Comment
  POM41966  Baccharis salicifolia Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UCD163789  Barbarea Peter Rubtzoff 1989-3-13 9981 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC16696  Barbarea orthoceras Dorothy Scherer 1996-3-25 018 Sonoma West of Highway 1 and south of Kolmer Gulch, Fort Rose State Historic Park. 12 Comment
  CAS-BOT-BC145828  Beckmannia syzigachne Hy Edwards 1877-1-1 s.n. Sonoma Knight's Valley. Comment
  CAS-BOT-BC145838  Beckmannia syzigachne Peter Rubtzoff 1961-6-25 4656 Sonoma Laguna de Santa Rosa near Trenton. Comment
  UC70977  Beckmannia syzigachne W. C. Blasdale 1893-6-10 Sonoma Los Guitucos Comment
  UCD56776  Beckmannia syzigachne G. F. Hrusa; R. Gross 1996-6-30 13060 Sonoma 2 mi. SW of Calistoga. Diamond Mountain Road. 700 Comment
  SEINET7596631 Image available Beckmannia syzigachne Mrs. H. P. Bracelin 1930-1 20 Sonoma 1 mi. N of Fort Ross Comment
  UC127249  Beckmannia syzigachne C. H. Dwinelle 1908-7-13 3 Sonoma Meacham Sta. Fulton Comment
  CDA43436  Bellardia trixago Stephanie Larson 2015-7-21 PDR# 49 UP06191162 Sonoma Near Highway 37. 0 Comment
  CAS-BOT-BC75775  Berberis pinnata A. A. Heller; H. E. Brown 1902-4-11 5257 Sonoma Bodega Bay. Comment
  CHSC22858  Berula erecta Robert A. Schlising 1963-7-27 2630 Sonoma In fresh water marsh adjoining salt marsh on east side of Bodega Penninsula. Comment
  UCR248930  Bidens frondosa Peter Rubtzoff 1973-9-4 7297 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  UCR250384  Bidens laevis Peter Rubtzoff 1955-11-27 2170 Sonoma Bodega Head Marsh 2 Comment
  CAS-BOT-BC290563  Bidens laevis Peter Rubtzoff 1963-11-11 5301 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC100254  Blennosperma bakeri John Thomas Howell 1949-4-6 25303 Sonoma Low field southwest of Sonoma. Type locality. Comment
  JEPS86325  Blennosperma bakeri Jack and Betty Guggolz 1988-2-23 901 Sonoma Kovatch property, n side of San Miguel Road, 1/10 m w of Walzer Rd 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
  CAS-BOT-BC100253  Blennosperma bakeri Rimo Bacigalupi; R. Ornduff; L. Heckard 1964-3-25 8924 Sonoma In pastures along (east of) Arnold Drive, 0.7 mile north of its junction with State Highway 37, south of Sonoma Comment
  SEINET4964102  Blennosperma bakeri Unknown 1946-1 Sonoma Comment
  UC195943  Blennosperma nanum var. nanum I. J. Condit 1913-3-7 Sonoma Petaluma Comment
  UC353927  Blennosperma nanum var. nanum Milo S. Baker 1928-3-24 2617 b Sonoma near, along Pacific Hiway Windsor Comment
  SEINET8466128 Image available Bloomeria crocea J. A. Ewan 1935-5-13 9264 Sonoma Wright School on Sebastopol Rd. Comment
  CAS-BOT-BC154867  Boisduvalia Peter Rubtzoff; Nancy Harrison 1974-6-8 7579 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road Comment
  CAS-BOT-BC154971  Boisduvalia densiflora Peter Rubtzoff 1964-7-14 5404 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC154970  Boisduvalia densiflora Peter Rubtzoff 1955-8-27 2094 Sonoma Bennett Mtn. Lake. Comment
  POM32026  Boisduvalia densiflora var. densiflora A. A. Heller 1902-6-4 5640 Sonoma Santa Rosa. Comment
  CAS-BOT-BC154972  Boisduvalia glabella Peter Rubtzoff 1963-7-27 5212 Sonoma Laguna de Santa Rosa E of Graton. Comment
  RSA791566  Boisduvalia glabella Peter Rubtzoff 1962-6-21 4940 Sonoma Laguna de Santa Rosa area NE of Graton, E of Laguna Road. Comment
  CAS-BOT-BC28178  Bolboschoenus fluviatilis Peter Rubtzoff 1962-7-6 4798 Sonoma Laguna de Santa Rosa, near Trenton, S of Woolsey Rd. Comment
  CAS-BOT-BC75486  Bolboschoenus glaucus John Thomas Howell 1987-5-17 s.n. Sonoma Llano Road Marsh. Comment
  UC1100889  Bolboschoenus robustus Verne Grant, Herbert L. Mason 1946-8-28 13077 Sonoma Mouth of Tolay Creek Comment
  CAS-BOT-BC368070  Boykinia Greg de Nevers 1998-5-31 11268 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Mark West Creek below Michele Lane. 400 Comment
  CAS-BOT-BC366885  Boykinia occidentalis Greg de Nevers 1997-9-22 11090 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  CAS-BOT-BC145445  Brachypodium distachyon G. DeNevers 1981-5-14 1151 Sonoma Pepperwood Ranch. Small canyon north of Pippindale pond, draw. Comment
  CAS-BOT-BC145446  Brachypodium distachyon Barrett Anderson 1987-4-27 3461 Sonoma Petaluma, south of El Rose and west of D Street. 120 Comment
  UCD57095  Brachypodium distachyon Frederica Bowcutt 1996-5-23 2151 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 Mountain. Lower Bald Mountain Trail. 472 Comment
  CAS-BOT-BC36651  Brassica oleracea Mary P. Wells 1989-4-3 977 Sonoma Santa Rosa. Rincon Valley. Streamside of fence east of Friends House. Comment
  POM94767  Brassica rapa Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  UC1199316  Brickellia californica Joseph P. Tracy 1935-8-18 14745 Sonoma Knights Valley 152 Comment
  CAS-BOT-BC145477  Briza maxima Roxana S. Ferris 1961-6-14 13530 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega. Comment
  CAS-BOT-BC145480  Briza maxima H. S. Yates 1936-5-16 5606 Sonoma 2 miles southeast of Forestville. 30 Comment
  CAS-BOT-BC145482  Briza maxima Peter Rubtzoff 1952-5-31 1098 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern. Comment
  UCD36535  Briza maxima Beecher Crampton 1954-4-26 1792 Sonoma Sonoma County, 2 miles north Geyserville, along U.S. Highway 101. Comment
  UCD57133  Briza maxima B. Crampton 1954-4-26 1792 Sonoma U. S. Hwy. 101. 2 miles north of Geyserville. Comment
  UCD57168  Briza maxima Roxana S. Ferris; Laura Lorraine 1961-6-14 13530 Sonoma Junction of Bittner Rd. with Joy Rd. between Occidental and Bodega. Comment
  CAS-BOT-BC145481  Briza maxima L. Beane; Lois E. James 1949-5-16 1949 Sonoma About 3 miles south of Cloverdale. Comment
  CAS-BOT-BC145293  Briza minor G. DeNevers 1981-5-12 1141 Sonoma Pepperwood Ranch. At the Red Corral, Old McCann Homestead. Comment
  CAS-BOT-BC145303  Briza minor Alice Eastwood 1921-5-8 10442 Sonoma Petaluma. Comment
  RSA22248  Briza minor Leo Koch 1938-4-21 82 Sonoma Hayfield along Redwood Highway about four miles north of Santa Rosa Comment
  SEINET10514426  Briza minor A. Arthur Heller 1902-6-7 Heller 5649 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  CAS-BOT-BC123412  Brodiaea californica var. leptandra Amos Arthur Heller 1902-6-23 5742 Sonoma Petrified Forest 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
  CAS-BOT-BC484390  Brodiaea elegans subsp. elegans Peter Rubtzoff; H. A. Froebe 1971-5-30 6461 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road 0.9 miles west of Arnold Drive Comment
  CAS-BOT-BC484391  Brodiaea elegans subsp. elegans D. E. Breedlove 1980-6-27 44744 Sonoma Pepperwood Ranch west of Knights Valley Comment
  CAS-BOT-BC484392  Brodiaea elegans subsp. elegans Peter Rubtzoff; Nancy Harrison 1976-6-18 8643 Sonoma False Lake Meadow area, Annadel State Park Comment
  RSA173355  Brodiaea elegans subsp. elegans Walter Knight 1117 Sonoma McDowell Road about 0.5 mile from Casa Grande Road. Comment
  RSA376764  Brodiaea elegans subsp. elegans Christopher Davidson 1977-6-20 6008 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  JEPS18123  Brodiaea stellaris Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-31 5675 Sonoma at base The Butcher Knife (along secondary road following creek); Big Austin Creek 182 Comment
  SEINET206246  Brodiaea stellaris Rimo Bacigalupi, L. R. Heckard 1961-6-9 7746 Sonoma Along Stoeti Lane about 0.5 mile northwest of its junction with Harrison Grade road and about 0.75 mile northwest of O 229 Comment
  CAS-BOT-BC486459  Brodiaea terrestris subsp. terrestris Peter Rubtzoff; Nancy Harrison 1978-5-20 9183 Sonoma Cunningham Marsh area on north side of Blucher Creek valley. Comment
  CAS-BOT-BC487728  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1962-6-1 4871 Sonoma Freestone Marsh Comment
  SBBG53021  Brodiaea terrestris subsp. terrestris M. R. Benedict 1978-4-18 Sonoma Skaggs Springs Rd, ca. 8 mi W of Geyserville 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
  CAS-BOT-BC149086  Bromus carinatus var. carinatus Peter H. Raven 1950-4-23 1894 Sonoma Solve Vista. 152 Comment
  CAS-BOT-BC156277  Bromus catharticus G. DeNevers 1981-5-5 931 Sonoma Pepperwood Ranch. In Pippindale Garden. Alos in west arm of Garrison Canyon. Comment
  UCD58378  Bromus catharticus Collector unknown 1941-7-1 Sonoma Santa Rosa. Comment
  CAS-BOT-BC422358  Bromus commutatus Peter Rubtzoff 1976-6-18 8652 Sonoma Kenwood Marsh. Comment
  UCD58474  Bromus commutatus B. Crampton 1955-5-8 2820 Sonoma Hwy. 128. Alexander Valley. Comment
  RSA789052  Bromus diandrus Carrie A. Herd 1982-5-4 86 Sonoma Rohnert Park, C.S.U, Sonoma. between dorms and Rancho Cotati High School. Comment
  SEINET10517953  Bromus diandrus A. Arthur Heller 1902-4-17 Heller 5322 Sonoma Santa Rosa. Comment
  CAS-BOT-BC155213  Bromus hordeaceus Mary P. Wells 1984-4-23 190 Sonoma Rincon Valley, Santa Rosa. Comment
  CAS-BOT-BC155214  Bromus hordeaceus G. DeNevers 1981-5-12 1132 Sonoma Pepperwood Ranch. North arm of Garrison Canyon. Comment
  UCD38532  Bromus hordeaceus Beecher Crampton 1956-3-13 3226 Sonoma Asti, Italian Swiss Colony Winery. Comment
  UCD58796  Bromus hordeaceus L. Whitney 1935-3-16 s.n. Sonoma Sutherland Orchard--near Occidental. Comment
  CAS-BOT-BC162389  Bromus laevipes G. DeNevers 1981-5-23 1291 Sonoma Pepperwood Ranch. Lower Pepperwood entrance. Comment
  UCD36697  Bromus laevipes Beecher Crampton 1955-6-17 2977 Sonoma Sonoma County, 2.4 miles south of Monte Rio, road to Camp Meeker. Comment
  UCD58929  Bromus laevipes Beecher Crampton 1953-5-19 1296 Sonoma 10 miles west of Calistoga. Hwy. 128. Comment
  CAS-BOT-BC161585  Bromus sterilis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53965 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain. 457 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
  UCD60243  Bromus vulgaris B. Crampton 1955-6-17 2928 Sonoma 1.6 miles west of Forestville. Comment
  CAS-BOT-BC176119  Cakile maritima Peter Rubtzoff 1955-8-20 2078 Sonoma Bodega Harbor Marsh Comment
  UCD114957  Cakile maritima Walter Russell 1947-3-5 4 Sonoma Bodega Bay. Comment
  CAS-BOT-BC36951  Cakile maritima var. maritima John H. Thomas 1976-6-17 18352 Sonoma Near northern end of Sea Ranch, northwestern part of county, about 4 miles south of Gualala. Comment
  SEINET10789362  Calamagrostis P. Rubtzoff 1971-6-10 Rubtzoff 6537 Sonoma Pitkin Marsh, near Forestville. Near the southern end of the upper part of the marsh. Comment
  UC1146621  Calamagrostis bolanderi Freed W. Hoffman 1943-6-20 2058 Sonoma near Salt Point (Eckert Ranch); North Coast Ranges, Sonoma Coast Comment
  UC1779151  Calamagrostis bolanderi Barbara L. Wilson, Sami Gray 1997-7-31 8900 Sonoma Sea Ranch; Big Tree loop trail, which originates between unites [sic] 27A and 29A off Timber Ridge Road, off Deerfield Loop, off Hwy 1 170 Comment
  CAS-BOT-BC185127  Calamagrostis nutkaensis Peter Rubtzoff 1952-5-21 1058 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  SDSU970  Calamagrostis nutkaensis D. F. Howe 1963-7-3 3582 Sonoma 19 miles north of junction with #12 on #1 Comment
  UCD57532  Calamagrostis nutkaensis P. B. Kennedy 1915-1 s.n. Sonoma Del Mar Ranch. Comment
  UCD160969  Calamagrostis ophitidis James A. Neilson Jr. 1975-7-8 3411 Sonoma Mayacmas Mountains. Socrates Mine Road, near summit. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD57738  Calamagrostis rubescens R. Tofsrud 1951-6-1 s.n. Sonoma north of Sonoma, 'Top-O-The-World' Road, near Bay Area Lookout. Comment
  JEPS117091  Calandrinia ciliata Peter Warner 2010-4-15 129 Sonoma Jenner Headlands, Sonoma Land Trust property, along primary access road (Willig Ave. Extension), approx. 1 km N of Jenner village, in ultramafic grassland about 25 m E of road. Comment
  POM273085  Calendula arvensis J. T. Howell 1946-3-31 21591 Sonoma JOrchards and fields just east of Sonoma. Comment
  CAS-BOT-BC290610  Callitriche Peter Rubtzoff 1972-6-11 6776 Sonoma Laguna, Chileno Valley Comment
  RSA0015564  Callitriche Peter Rubtzoff 1969-5-16 6050 Sonoma Guerneville Marsh, eastern part of the marsh in Pocket Canyon. Comment
  CAS-BOT-BC331476  Callitriche trochlearis Peter Rubtzoff 1961-5-24 4604 Sonoma Upper Stemple Creek Marsh. Comment
  JEPS86779  Callitriche verna Jack and Betty Guggolz 1990-4-29 1042 Sonoma about 1 mi s Dutcher Creek Road junction with Highway 101 (Gallo property on w side of Dutcher Creek Road) 106 Comment
  UC1197699  Calochortus amabilis Joseph P. Tracy 1933-5-1 12126 Sonoma Knights Valley Mayacama Creek 152 Comment
  UCD160859  Calochortus amabilis James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3297 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  SEINET4152157  Calochortus amabilis H. E. Parks, S. T. Parks 1930-5-9 0605 Sonoma Alexander Valley, at edge of valley Comment
  UCD139536  Calochortus luteus C. Wistrom 1996-5-26 24 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  JEPS82298  Calochortus raichei Roger Raiche 1983-6-19 30413 Sonoma n of Cazadero (above middle fork of Red Slide Creek); The Cedars 457 Comment
  UCSB641  Calochortus tolmiei Robbins, G. 1938-4-15 Sonoma About 2.5 miles east of Bodega Bay Comment
  CAS-BOT-BC494039  Calochortus tolmiei Dorothy Scherer 1997-3-24 075 Sonoma Grassy area south of Kolmer Gulch and ca 300' east of Hwy one. Fort Ross State Historic Park 91 Comment
  CAS-BOT-BC132635  Calochortus uniflorus Alice Eastwood 1921-4-24 10336 Sonoma Santa Rosa Comment
  UCR255747  Calochortus uniflorus Greg de Nevers 1996-4-18 10791 Sonoma North Coast Range, Knights Valley Marsh, on Bavarian Lion Ranch 137 Comment
  CAS-BOT-BC270708  Calycadenia multiglandulosa Milo S. Baker 1932-6-9 6000 Sonoma 1 mile E of Occidental Comment
  UC615100  Calycadenia pauciflora Beryl O. Schreiber 1934-5-16 1127 Sonoma Healdsburg, Fitch Mountain Road Comment
  CAS-BOT-BC270843  Calycadenia pauciflora Gerald D. Carr 1972-3-20 688 Sonoma 2.0 miles N of Highway 128 on Ida Clayton Road 487 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
  UCD129813  Calycadenia pauciflora Gerald D. Carr 1971-8-17 640 Sonoma The Geysers. Comment
  UCD129872  Calycadenia pauciflora Jack Guggolz; Betty Guggolz 1990-6-22 1074 Sonoma north side of Ida Clayton road 2.15 miles from Highway 128. Comment
  CAS-BOT-BC90995  Calycanthus occidentalis A. A. Heller 1902-6-11 5689 Sonoma Santa Rosa Creek, east of Santa Rosa. Comment
  CAS-BOT-BC91000  Calycanthus occidentalis H. E. McMinn 1922-6-7 180 Sonoma Near Monte Rio. Comment
  CAS-BOT-BC91008  Calycanthus occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-15 13554 Sonoma Green Valley Road 0.8 mile east of junction with Harrison Grade Road. Comment
  UC72737  Calycanthus occidentalis Miss M. Alice King Jun 1897 Sonoma near Healdsburg Comment
  UCD137801  Calycanthus occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-15 13554 Sonoma Green Valley Road 0.8 mi. E of junction with Harrison Grade Road. Comment
  UCSB23042  Calycanthus occidentalis McMinn, Howard 1922-6-7 Sonoma Near Monte Rio, by stream Comment
  JEPS64301  Calypso bulbosa Docia Patchett 1917-3-29 Sonoma Cazadero Comment
  UC4384  Calypso bulbosa Miss Atterbury 1895-3-20 Sonoma Cazadero Comment
  SEINET7096768  Calystegia collina subsp. collina 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
  HSC96671  Calystegia collina subsp. oxyphylla Thomas W. Nelson, Jane Nelson 2004-5-5 9198 Sonoma Along Pine Flat Rd. 2 mi. from jct. with Hwy. 128 136 Comment
  JEPS86303  Calystegia collina subsp. oxyphylla Jack and Betty Guggolz 1988-4-5 909 Sonoma North side of Ida Clayton Road 1.15 miles from its junction with Highway 128 Comment
  RSA0059882  Calystegia collina subsp. oxyphylla Milo S. Baker 1898-6-11 648 Sonoma Little Sulphur Creek. Comment
  CAS-BOT-BC436379  Calystegia occidentalis subsp. occidentalis Alice Eastwood 1915-6-5 4570 Sonoma Petrified Forest Comment
  SBBG5769  Calystegia purpurata H. and M. Dearing 1939-5-14 3353 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  UCD125696  Calystegia purpurata subsp. purpurata Frederica Bowcutt 1994-7-5 1932 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 70 ft. S of Campfire Center, N and E of campground. 381 Comment
  UC879437  Calystegia purpurata subsp. saxicola Alice Eastwood 1915-6-29 4861 Sonoma Bodega Point Comment
  HSC15433  Camassia quamash subsp. linearis James Faro 1962-4-22 Sonoma Ocean Cove Ranch, 4 mi. N of Fort Ross on Hwy. 1 Comment
  CAS-BOT-BC160370  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Walter Knight; Irja Knight 1963-8-13 160 Sonoma Horseshoe Cove Comment
  JEPS81961  Campanula angustiflora Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9112 Sonoma along road to Franz Valley School road (between 1 and 1.25 mi due w of Sonoma-Napa counties line) 219 Comment
  UC903745  Campanula angustiflora Milo S. Baker 1947-5-8 11756 Sonoma at top Rose Butte; Hood Mt. 243 Comment
  CHSC43095  Campanula californica Stacy Cepello; L. P. Janeway, Jean Witzman 1987-6-28 Sonoma 2.5 mi south of town of Gualala. 150 yds upstream of hwy 1 crossing. Comment
  SEINET10463913  Campanula californica Baker 1928-6-28 Baker 30466 Sonoma Pitkin Marsh. Comment
  HSC6632  Capsella bursa-pastoris C. S. Chavez 1965-6-3 79 Sonoma 1 mi. E of Forestville on Hwy. 116 Comment
  HSC6633  Capsella bursa-pastoris S. N. Wiemeyer 1962-4-20 28 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  UC1299650  Cardamine californica Freed W. Hoffman 1947-3-11 821 Sonoma headwaters Duvoul Creek (a branch of Dutch Bill Creek and tributary of Russian River); North Coast Ranges, , Dutch Bill Creek, Russian Comment
  CAS-BOT-BC37771  Cardamine californica John H. Thomas 1966-3-22 11535 Sonoma About 2.7 miles from Sebastapol toward Santa Rosa along Highway 12. Comment
  UC72911  Cardamine californica var. integrifolia Milo S. Baker 1898-2-13 716 Sonoma near Santa Rosa (Taylor Mt.); , near Santa Rosa Comment
  RSA177957  Cardamine californica var. integrifolia R. F. Thorne 1965-4-20 34330 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  CDA18778  Cardamine hirsuta Boris Korotyaev 2000-3-28 s.n. Sonoma Northern California; Bodega Bay. 0 Comment
  CAS-BOT-BC38035  Cardamine oligosperma A. A. Heller; H. E. Brown 1902-3-14 5053 Sonoma Near Santa Rosa. Comment
  UCD169979  Cardamine oligosperma G. F. Hrusa 1999-2-26 14925 Sonoma Foote Ranch, NW base of Mt. St. Helena, near corner of Hwy 128 and Ida Clayton Rd. 152 Comment
  POM144128  Cardamine oligosperma A. A. Heller, H. E. Brown 1902-3-14 5053 Sonoma Near Santa Rosa Comment
  UC963900  Cardamine oligosperma Milo S. Baker Apr 1946 11309 Sonoma Brookside Garden near Kenwood; Brookside Garden near Kenwood Comment
  JEPS128330  Cardamine pachystigma var. dissectifolia Roger Raiche 2010-4-17 016 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA107087  Cardionema ramosissimum L. S. Rose 1956-7-16 56129 Sonoma Bodega Point. 9 Comment
  UCD148424  Carduus Peter Rubtzoff 1960-5-15 4327 Sonoma Fife Creek Marsh. Comment
  CDA32954  Carduus pycnocephalus D. Barbe & P. Hiatt 1979-5-1 Sonoma South of Asti; on Asti Road, 0.45 mile south of Washington School Road. 0 Comment
  UCD85500  Carduus pycnocephalus Frederica Bowcutt 1984-6-24 464 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. 15 Comment
  CAS-BOT-BC18190  Carex Mary P. Wells 1985-7-11 558 Sonoma Pilot's Reach. The Sea Ranch. Comment
  CAS-BOT-BC173806  Carex Peter Rubtzoff; Nancy Harrison 1978-5-20 9184 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  UCR254736  Carex abrupta Peter Rubtzoff 1958-5-17 3658 Sonoma Laguna de Santa Rosa north of Sebastopol, near Occidental Road 18 Comment
  CAS-BOT-BC334518  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC344829  Carex abrupta Peter Rubtzoff 1960-6-25 s.n. Sonoma Laguna de Sant Rosa area east of Graton (between Occidental and Guerneville roads). Comment
  CAS-BOT-BC353416  Carex abrupta Peter Rubtzoff 1959-6-6 s.n. Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC18135  Carex athrostachya John Thomas Howell; J. W. Stacey 1937-6-6 13018 Sonoma Sebastopol. Comment
  CAS-BOT-BC18144  Carex athrostachya Peter Rubtzoff 1958-7-5 3743 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC19363  Carex barbarae John Thomas Howell; J. W. Stacey 1937-6-6 13022 Sonoma Sebastopol. Comment
  JEPS63751  Carex barbarae R. Kuhn 1913-6-27 Sonoma Sonoma Comment
  HSC101105  Carex barbarae Peter Warner 2011-6-1 211 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Springs Rd. at Mark West Lodge); on E bank of Mark West Creek, about 150 m NNE of Pelm house. 211 Comment
  UCD140160  Carex barbarae Beecher Crampton 1964-5-12 6951 Sonoma 6 miles northwest of Calistoga, State Highway 128. Comment
  SEINET7552671 Image available Carex brevicaulis John Thomas Howell 1955-6-2 30258 Sonoma Near Vine Hill school Comment
  RSA0031802  Carex cusickii Peter Rubtzoff 1962-5-25 4841 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  CAS-BOT-BC329290  Carex cusickii Peter Rubtzoff 1955-5-21 1872 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC18991  Carex densa James D. Jokerst 1985-4-26 2271 Sonoma Near Caldwell Ranch. Comment
  CAS-BOT-BC20482  Carex densa John Thomas Howell 1945-5-30 20891 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC20483  Carex densa Peter Rubtzoff 1951-6-16 264 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the Upper Marsh Comment
  CAS-BOT-BC20493  Carex densa Peter Rubtzoff 1960-5-15 4324 Sonoma Sonoma County Marshes. Fife Creek Marsh. Comment
  CAS-BOT-BC242636  Carex densa Peter Rubtzoff 1957-5-11 3329 Sonoma Occidental Marsh Comment
  CAS-BOT-BC290555  Carex exsiccata Peter Rubtzoff 1955-9-9 2115 Sonoma Bodega Head Marsh. Comment
  UCR250395  Carex exsiccata Peter Rubtzoff 1954-7-4 1535 Sonoma Duncan Mills Marsh, upper portion of marsh 2 Comment
  RSA0020330  Carex exsiccata Peter Rubtzoff 1959-4-18 4024 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 0.5 mi north of Guerneville Road crossing. Comment
  CAS-BOT-BC20134  Carex feta Peter Rubtzoff 1957-5-11 3328 Sonoma Occidental Marsh. Comment
  UCR208523  Carex feta Peter Rubtzoff 1961-6-17 4619 Sonoma North Coast Range, Bennet Mountain Lake Comment
  UCD140351  Carex globosa Frederica Bowcutt 1994-5-1 1760 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa and 2.5 air miles NE Kenwood and 18 air miles NW of Napa. Adobe Canyon along Goodspeed Trail about 200 yards from just E of Bear Creek about 5 yards N of confluence with Sonoma Creek about 40 yards. Comment
  SEINET10879720  Carex globosa Lewis S. Rose 1971-4-30 Rose 71026 Sonoma 3 mi E of Occidental. Serpentine Hills. 183 Comment
  CAS-BOT-BC28366  Carex gracilior Peter Rubtzoff 1954-7-5 1543 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC28331  Carex gracilior Henry Nicholas Bolander 1864-4-1 3814 Sonoma Meadow near Mark West Creek. Comment
  UC1562593  Carex gynodynama Barbara Ertter with Susan D'Alcamo 1988-5-1 7470 Sonoma meadow across Hwy. 1 from entrance to s-most campground; Salt Point State Park Comment
  CAS-BOT-BC21901  Carex harfordii J. W. Congdon 1880-5-12 s.n. Sonoma Petaluma. Comment
  CAS-BOT-BC242644  Carex harfordii Peter Rubtzoff 1957-5-4 3306 Sonoma Duncan Mills Marsh Comment
  UCR248920  Carex harfordii Peter Rubtzoff 1962-6-1 4867 Sonoma Freestone Marsh 79 Comment
  CAS-BOT-BC21030  Carex hendersonii Peter Rubtzoff 1954-6-7 1490 Sonoma East Guernewood, near Guerneville. Comment
  CAS-BOT-BC31175  Carex lemmonii R. F. Hoover 1939-5-30 4111 Sonoma Perry's Ranch near Sebastopol. Comment
  UC1026419  Carex lemmonii Peter Rubtzoff 1951-7-8 403 Sonoma near Forestville (Pitkin Marsh, lower part of the upper marsh) Comment
  OBI22652  Carex lemmonii Robert F. Hoover 1939-5-30 4111 Sonoma Perry's "Twin Pines Ranch" near Sebastopol Comment
  CAS-BOT-BC31429  Carex leptopoda Lewis S. Rose 1964-6-3 64051 Sonoma N end of Bodega Bay swamp. 1 Comment
  CAS-BOT-BC329300  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncans Mills Marsh. Comment
  HSC7141  Carex leptopoda L. S. Rose 1964-6-3 64051 Sonoma N end of Bodega Bay swamp 2 Comment
  RSA94277  Carex leptopoda Peter Rubtzoff 1951-6-9 164 Sonoma Pitkin Marsh, near Forestville; Forest south of the Upper Marsh. Comment
  CAS-BOT-BC539865  Carex mendocinensis Robert F. Hoover 1941-5-14 5091 Sonoma 2 mi S of Monte Rio on road to Camp Meeker Comment
  HSC100971  Carex multicaulis Peter Warner 2011-5-26 210 Sonoma Cresta Ranch, (off Mark West Springs Rd. at Mark West Lodge) ~550 m South of Cresta Rd. 265 Comment
  CAS-BOT-BC119315  Carex obnupta Peter Rubtzoff 1951-6-10 208 Sonoma Pitkin Marsh, near Forestville. S of the Upper Marsh. Comment
  CAS-BOT-BC310305  Carex obnupta Peter Rubtzoff 1964-6-20 s.n. Sonoma Laguna de Santa Rosa, southeast of Sebastopol (near Cooper Road). Comment
  JEPS63537  Carex obnupta W. L. Jepson 1931-7-19 15953 Sonoma Russian River near Markham; Russian River Comment
  CAS-BOT-BC119316  Carex obnupta J. H. Thomas 1976-6-15 18263 Sonoma S end of Sea Ranch, NW part of county, ca 7 mi S of Gualala. 30 Comment
  CAS-BOT-BC119289  Carex ovalis John Thomas Howell 1938-7-3 13965 Sonoma Pitkin Marsh Comment
  UCR208530  Carex ovalis Peter Rubtzoff 1958-5-10 3638 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  CAS-BOT-BC320468  Carex pachystachya Peter Rubtzoff 1964-5-20 5316 Sonoma Brooks Gulch Marsh. Comment
  UCR248918  Carex pachystachya var. pachystachya Peter Rubtzoff 1974-6-2 7504 Sonoma Upper Green Valley 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
  UCD161824  Carex serratodens James A. Neilson Jr. 1975-5-23 3204 Sonoma Abril property, Truit Creek at Big Sulphur Creek. (Exact location unkown, coordinates estimated by label maker.) Comment
  RSA0022395  Carex serratodens Peter Rubtzoff 1957-5-11 3341 Sonoma Occidental Marsh. Comment
  RSA0018585  Carex simulata Peter Rubtzoff 1975-7-3 8146 Sonoma Kenwood Marsh. Comment
  RSA0000226  Carex sonomensis J. T. Howell, J. W. Stacey 1937-6-6 13042 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC173805  Carex stipata Peter Rubtzoff; Nancy Harrison 1978-5-20 9178 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  RSA90862  Carex stipata J. W. Stacey 1937-6-6 13021 Sonoma Sebastopol. Comment
  CAS-BOT-BC116929  Carex subbracteata Peter Rubtzoff 1954-8-2 1619 Sonoma Duncan Mills Marsh. Comment
  UCR248923  Carex subbracteata Peter Rubtzoff 1962-6-1 4868 Sonoma Freestone Marsh 79 Comment
  RSA0022361  Carex subbracteata Peter Rubtzoff 1962-6-1 4868 Sonoma Freestone Marsh. Comment
  UCD140916  Carex subfusca Peter Rubtzoff 1954-7-5 1537 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC329285  Carex tumulicola Peter Rubtzoff 1957-5-26 3368 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC329286  Carex tumulicola Peter Rubtzoff 1958-5-3 3620 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC115528  Carex tumulicola David Morgan 1961-4-26 s.n. Sonoma Top of William Hill, 5 mi SW of Petaluma. Comment
  CAS-BOT-BC230227  Carpobrotus edulis John H. Thomas 1976-6-15 18302 Sonoma S end of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CDA33583  Carthamus lanatus Robin Breckenridge & Andrew Smith 2010-7-21 PDR# 1313484 Sonoma Calistoga: La Franchi Ranch, Highway 128. 0 Comment
  RSA664100  Carthamus tinctorius J. C. Roos, L. Roos 1956-9-2 6599 Sonoma Healdsburg dump Comment
  CAS-BOT-BC249310  Caryophyllaceae Peter Rubtzoff 1963-6-22 5183 Sonoma Bennett Mountain Lake. Comment
  SEINET7067335  Castilleja affinis A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles East of Windsor on Mendocino Avenue. Coordinate datum: NAD27. UTM Zone 10, 523728mE, 4258330mN. Comment
  JEPS22231  Castilleja ambigua subsp. ambigua Rimo Bacigalupi with members of Dr. Herbert G. Baker's class 1958-5-24 6361 Sonoma n of Sebastopol (ground above Pitkin Marsh); Vine Hill Region 60 Comment
  JEPS19556  Castilleja applegatei subsp. martinii Rimo Bacigalupi with G. T. Robbins and Freed Hoffman 1956-5-30 5667 Sonoma vicinity The Cedars (near Layton Chromite Mine, headwaters of Big Austin Creek); Big Austin Creek 266 Comment
  SD130527  Castilleja attenuata F. Almeda, G. DeNevers 1981-4-28 4918 Sonoma Pepperwood Ranch, vicinity of the Bechtel cabin Comment
  UC577266  Castilleja campestris subsp. campestris Milo S. Baker 1936-5-1 8576 Sonoma 0.5 mi e old Santa Rosa Fair Grounds (Bennett Valley Highway) Comment
  UC886468  Castilleja densiflora subsp. densiflora Alice Eastwood 1921-4-24 10340 Sonoma Santa Rosa Comment
  JEPS66231  Castilleja miniata subsp. miniata T. I. Chuang with L. R. Heckard, R. Bacigalupi and P. Rubtzoff 1971-6-10 6903 Sonoma about south-central Pitkin Marsh (near end of Templeton Road); , about south-central Comment
Read comments
Oct 15 2010
  JEPS16300  Castilleja minor subsp. spiralis Milo S. Baker 1926-9-26 198 Sonoma Hood Mt. 609 Comment
  JEPS35571  Castilleja wightii L. R. Heckard 1964-6-12 1383 Sonoma about 2 mi n Russian River (ravine off Calif Hwy 1, near the point where this road descends into Russian Gulch); Russian Gulch Comment
  UC1341744  Castilleja wightii Noel H. Holmgren and James L. Reveal 1966-6-6 2649 Sonoma 3.5 mi n Bodega Bay (Calif Hwy 1, Coleman Beach); Sonoma Coast, Coleman Beach Comment
  UC1341770  Castilleja wightii Noel H. Holmgren and James L. Reveal 1966-6-6 2650 Sonoma 2 mi s Calif. Hwy. 1 junction with Calif. Hwy. 116 (Calif. Hwy. 1) Comment
  UCR255652  Caulanthus lasiophyllus Greg de Nevers 1997-4-24 10959 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  UC1071513  Ceanothus C. M. Belshaw 1936-3-8 1583 Sonoma .75 mi n. Annadel (nw of Kenwood); Santa Rosa Quad. Comment
  UC1520698  Ceanothus confusus R. Raiche 1985-4-6 50178 Sonoma W of Healdsburg (ridge W side of Dry Creek Valley, and N of Dorman Canyon (N as far as Bradford Mt.)); Dry Creek Area Comment
  CAS-BOT-BC48517  Ceanothus confusus Roger Raiche 1985-11-28 RR 50897 Sonoma w of Cloverdale, Red Mt. between Hot Springs Road & Cherry Creek Road 377 Comment
  UCD111362  Ceanothus confusus G. F. Hrusa; R. Gross 1995-11-8 12469 Sonoma on N side of Adobe Canyon Road. Comment
  CAS-BOT-BC49696  Ceanothus cuneatus var. ramulosus D. E. Breedlove 1980-6-27 44774 Sonoma Pepperwood Ranch W of Knights Valley Comment
  RSA177990  Ceanothus foliosus Robert F. Thorne 1965-4-20 34343 Sonoma Top of Parker Hill (N end of Parker Hill Rd.) ca. 3 mi. No. of Santa Rosa. 244 Comment
  LA43583  Ceanothus foliosus Henry Reents; 1936-5-23 sn Sonoma ne of Santa Rosa Comment
  CAS-BOT-BC49912  Ceanothus foliosus var. foliosus Tom Craig 1941-6-18 s.n. Sonoma Trinity Road, west slope, between Glen Ellen and Rutherford Comment
  CAS-BOT-BC49913  Ceanothus foliosus var. foliosus D. E. Breedlove 1983-4-11 58671 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA31311  Ceanothus foliosus var. foliosus D. G. Kelch, Ed Biffin 2010-5-3 10 .194 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  SBBG4198  Ceanothus foliosus var. foliosus M. Van Rensselaer 1941-4-27 1637 Sonoma Trinity Rd, Mt Hood Range Comment
  CAS-BOT-BC49907  Ceanothus foliosus var. foliosus E. Ruckert 1960-4-17 104 Sonoma Trinite Road, 1/2 mile east of Highway 12 304 Comment
  UCD112147  Ceanothus foliosus var. foliosus Collector unknown Date unknown s.n. Sonoma southwestern part of county. Comment
  CAS-BOT-BC49996  Ceanothus gloriosus Milo S. Baker 1935-4-1 8027 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50015  Ceanothus gloriosus John Thomas Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC49949  Ceanothus gloriosus var. exaltatus Milo S. Baker 1931-6-4 6236 Sonoma Vine Hill Region Comment
  POM301629  Ceanothus gloriosus var. exaltatus Carl B. Wolf 1941-7-30 11108 Sonoma 8.5 miles south of Stewarts Point, at entrance to Salt Point Ranch. 30 Comment
  UC870564  Ceanothus gloriosus var. exaltatus Leo Koch 1938-5-26 165 Sonoma transplanted from Vine Hill near type locality Santa Rosa (Junior College). Comment
  UC912383  Ceanothus gloriosus var. exaltatus Herbert L. Mason 1931-3-7 5801 Sonoma Vine Hill School, 12 miles west of Santa Rosa. Comment
  CAS-BOT-BC49954  Ceanothus gloriosus var. exaltatus J. Clausen 1933-3-26 742 Sonoma southern boundary of the Frey Brothers Ranch, about 10 miles west of Santa Rosa on the Santa Rosa-Graton Road Comment
  CAS-BOT-BC49976  Ceanothus gloriosus var. gloriosus John Thomas Howell 1934-3-3 11742 Sonoma 8 miles S. of Stewart's Point Comment
  RSA276844  Ceanothus incanus James I. McMurphy 1909-5-29 s.n. Sonoma Creek between Geyser Mtn and the Geysers Comment
  UCD158880  Ceanothus incanus James A. Neilson Jr. 1975-1-23 3124 Sonoma Mayacmas Mountains. One-quarter mile south of Little Sulphur Creek crossing., Healdsburg- Geysers Road. (Elevation estimated using topo map by label maker.) 731 Comment
  CAS-BOT-BC50954  Ceanothus integerrimus James McMurphy 1909-5-29 s.n. Sonoma Grade between Black Mountain and Geyser Mountain Comment
  CAS-BOT-BC50649  Ceanothus jepsonii Gladys L. Smith 1977-3-30 4651 Sonoma Harrison Grade, Occidental region 457 Comment
  CAS-BOT-BC51113  Ceanothus jepsonii Catherine Best 1986-4-1 1170 Sonoma on Stoetz Lane about 2 mi. Northeaset of Occidental Comment
  UC1070782  Ceanothus jepsonii E. Armstrong 1934-3-26 935 Sonoma 4 mi nw Camp Meeker; Sebastopol quad Comment
  UC870590  Ceanothus jepsonii Alice Eastwood and John Thomas Howell 1939-4-2 7377 Sonoma near Camp Meeker (on rd to Monte Rio) Comment
  UCD168055  Ceanothus jepsonii James Neilson 1978-6-7 3965 Sonoma Mayacmas Mountains, Shell Well Site E. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site E was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  UCD160147  Ceanothus oliganthus var. sorediatus James A. Neilson Jr. 1974-4-24 2717 Sonoma Mayacmas Mountains, Squaw Creek drainage, at site of geothermal well Ottoboni 17. (Exact location of Ottoboni 17 unknown; this record is georeferenced along Ottoboni Ridge Road in The Geysers; elevation estimated by label-maker). 967 Comment
  RSA122368  Ceanothus parryi H. S. Yates 1934-4-21 5371 Sonoma near Guerneville 91 Comment
  SEINET12211132  Ceanothus parryi Unknown 1985-1 50183 Sonoma W of Healdsburg, Dry Creek area, ridge W of Dry Creek Valley & N of Dorman Canyon (Crane 244 Comment
  CAS-BOT-BC53002  Ceanothus sonomensis John Thomas Howell 1937-4-11 12905 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC53003  Ceanothus sonomensis John Thomas Howell 1935-5-5 12609 Sonoma Slopes of Triniti Mt., 2 miles e. of Glen Ellen Comment
  CAS-BOT-BC83739  Ceanothus sonomensis D. O. Burge 2007-4-27 897 a Sonoma Mayacmas Mountains, Hood Mountain Regional Park and Open Space Preserve 480 Comment
  RSA753880  Ceanothus sonomensis Dylan O. Burge, C. Miller 2007-6-12 DOB 939 c Sonoma Mayacmas Mts., head of Hooker Canyon, roadside on Cavedale Road, 4.0 road miles (6.4 km) E of SR 12. 4.90 km 85 degrees (True) ENE of Glenn Ellen. 560 Comment
  UC1614463  Ceanothus sonomensis Charles M. Belshaw 1936-3-8 1581 Sonoma 3/4 mi. n. Annadel (n.w. of Kenwood) 144 Comment
  UCD112701  Ceanothus sonomensis Roman Gankin 1966-3-3 689 Sonoma On south-facing slope in Hooker Canyon, below Cavedale Road, 3.1 miles east of junction with State Highway 12. Comment
  UCD162163  Ceanothus sonomensis D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2014-3-23 1516 Sonoma Hooker Creek watershed. 520 Comment
  CAS-BOT-BC32657  Ceanothus sonomensis Henry Reents 1936-5-23 s.n. Sonoma Youngman Canyon Comment
  CAS-BOT-BC52347  Ceanothus thyrsiflorus Mary P. Wells 1985-9-13 654 Sonoma Forest no. of junction of Timber Ridge and Longmeadow Roads, The Sea Ranch Comment
  CDA37726  Centaurea iberica R. Breckenridge/S. Ostrom 2009-7-9 s.n. Sonoma Franz Valley, Oak Ridge Angus. 0 Comment
  CDA23055  Centaurea melitensis D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .269 Sonoma Cavedale Rd. Comment
  CDA19936  Centaurea melitensis McArthur 2002-7-2 PDR P 092644 Sonoma Northern California; Annadel State Park. 0 Comment
  UCD82017  Centaurium tenuiflorum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glenn Ellen). Vernal pool plot BEB2F. 189 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
  JEPS20839  Centaurium trichanthum Harry K. Roberts 1958-7-8 Sonoma 0.3 mi w starting at the junction of the Sebastopol and Occidental rd (toward Sebastopol, on the lower half of the borrow pit on the s side of the Sebastopol-Santa Rosa highway) Comment
  SEINET12337137  Centaurium trichanthum Unknown 1986-1 60285 Sonoma at the Lac Co. line: Mayacamas Mts, Pine Mt fireroad, ca.1/2mi.N of Ida Clayton Rd 747 Comment
  POM151914  Cerastium arvense A. A. Heller 1902-4-11 brown Sonoma Bodega Bay. Comment
  RSA177949  Cerastium glomeratum R. F. Thorne 1965-4-20 34322 Sonoma Parker Hill Road ca. 2 1/2 miles N of Santa Rosa and 1 mile N of Sonoma County hospital. 107 Comment
  CAS-BOT-BC207632  Cercis occidentalis Peter Fritsch 1999-10-3 1749 Sonoma 0.5 mi W of the gate to the geothermal plant along Geysers Resort Road. Comment
  RSA6405  Cercocarpus betuloides Jens Clausen 1933-3-25 734 Sonoma Santa Rosa Creek. 183 Comment
  UC1084435  Cercocarpus betuloides var. betuloides G. Thomas Robbins 1940-3-21 293 Sonoma 5-6 mi e of Windsor (Barnes Creek along Chalk Hill Road); Barnes Creek 38 Comment
  UC1278119  Chamaemelum fuscatum B. Crampton 1955-3-14 2319 Sonoma Italian-Swiss Colony Winery, Asti Comment
  CAS-BOT-BC279779  Chamaemelum fuscatum John H. Thomas 1974-3-20 17061 Sonoma Near Asti Comment
  UCD130400  Chamaemelum fuscatum Philip A. Munz 1952-3-23 17351 Sonoma 2 miles south of Asti Vineyard (Italian Swiss Colony). Comment
  RSA783839  Chenopodium Peter Rubtzoff 1971-7-23 6617 Sonoma Laguna, Chileno Valley. Comment
  UCD166098  Chenopodium Peter Rubtzoff 1971-8-9 6638 Sonoma Laguna, Chileno Valley. Comment
  SEINET5763969 Image available Chenopodium ambrosioides H. S. Reed 1948-1 2025 Sonoma Sonoma Creek, near Kenwood Comment
  SEINET11933366  Chenopodium berlandieri var. zschackei W. Knight, Knight, I.; Edwards, S. W. 1984-1 5042 Sonoma Willow Creek between Denman Flat and Corona Road near Petaluma Comment
  UC1563922  Chenopodium pumilio Barbara Ertter 1988-11-5 8032 Sonoma ca 5 mi due s Cloverdale (point below Little Flat parking area, Lake Sonoma, w of bridge); Lake Sonoma 152 Comment
  UCD138415  Chlorogalum pomeridianum Mary M. Hektner 1975-6-22 210 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC191597  Chorizanthe cuspidata var. cuspidata John Thomas Howell 1930-6-8 5271 Sonoma at N end of Bodega Bay Comment
  JEPS86335  Chorizanthe membranacea Jack and Betty Guggolz 1988-6-13 947 Sonoma on the ne side of Pine Flat Road 7.2 mi from its junction with Highway 128 Comment
  CAS-BOT-BC30104  Chrysolepis chrysophylla Mary P. Wells; Mary Rhyne; John Madison 1985-11-4 695 Sonoma Forest 1/2 mile south of the Gualala River Comment
  UCR249331  Cirsium Peter Rubtzoff 1962-6-13 4899 Sonoma Freestone Marsh 79 Comment
  CAS-BOT-BC290556  Cirsium Peter Rubtzoff 1960-6-11 4499 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  UC178903  Cirsium brevistylum Katharine Brandegee 1905-6-25 Sonoma Bodega Comment
  UC1357630  Cirsium douglasii var. douglasii R. F. Hoover 1966-6-17 9914 Sonoma n of Alexander Valley; Sausal Creek Comment
  UC178901  Cirsium douglasii var. douglasii Katharine Brandegee 1905-6-25 Sonoma Bodega Comment
  UC178902  Cirsium douglasii var. douglasii Katharine Brandegee 1905-6-25 Sonoma Bodega Comment
  UC894320  Cirsium occidentale var. venustum A. A. Heller 1902-6-24 5753 Sonoma near Burke's Sanitarium Comment
  JEPS77264  Cirsium occidentale var. venustum Robert M. Lloyd 1963-4-24 2401 Sonoma 18.3 mi e State Highway 12 (on road to Oakdale) 243 Comment
  CAS-BOT-BC169773  Cistanthe quadripetala Roger Raiche 1984-6-9 40204 Sonoma Mayacamas Mts., NW of fireroad at summit from end of Pine Flat Rd. (N of Socrates Mine) 975 Comment
  CAS-BOT-BC169774  Cistanthe quadripetala Maxine Wilkes 1940-5-1 s.n. Sonoma Mt. St. Helena Comment
  JEPS43699  Clarkia amoena Milo S. Baker 1923-7-30 141 Sonoma near Frederickson's-Iagua; North Coast Comment
  UC972227  Clarkia amoena Calvin and Phyllis McMillan 1951-5-27 1552 Sonoma nw Cloverdale (on road to Boonville, ca. 1 mi e of Mendocino-Sonoma County line) Comment
  RSA0059971  Clarkia amoena subsp. amoena Charlotte M. Hoak 1912-08 s.n. Sonoma Monte Rio. Comment
  UCR121480  Clarkia amoena subsp. huntiana George K. Helmkamp, E. A. Helmkamp 2000-6-18 5700 Sonoma Outer North Coast Ranges, along Calif. Hwy 128, 0.5 mi south of Mendocino Co. line 381 Comment
  CAS-BOT-BC163513  Clarkia amoena subsp. huntiana Peter Rubtzoff 1951-8-26 688 Sonoma At base of hill near the road from East Guernewood to Vacation Beach (Guerneville region) Comment
  CAS-BOT-BC163514  Clarkia amoena subsp. huntiana Walter Knight; Irja Knight 1963-8-13 197 Sonoma Corner Roblar & Steinbeck Rds Comment
  UCD104412  Clarkia concinna Amelie Blyth 1952-5-4 8- 4 Sonoma Along highway between Geyserville and Stewart's Point, about 6 miles from Geyserville. Comment
  POM194539  Clarkia concinna subsp. concinna Y. Mexia 1929-6-2 2394 Sonoma Near Mark West Springs Comment
  POM249870  Clarkia concinna subsp. concinna Joseph A. Ewan 1935-5-13 9202 Sonoma Bodega Bay Rd. 2 miles W of Bodega. Comment
  UCD158789  Clarkia gracilis James A. Neilson Jr. 1974-6-1 2876 Sonoma Mayacmas Mountains, Geyser Rock, west of Whispering Pines, northeastern Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  UC373513  Clarkia gracilis subsp. sonomensis C. L. Hitchcock 1928-6-7 21 Sonoma 5 1/2 mi s Santa Rosa (Sonoma - Santa Rosa Highway) 32 Comment
  CAS-BOT-BC163149  Clarkia imbricata Peter Rubtzoff 1952-7-20 1308 Sonoma Pitkin Ranch, Nine Hill region Comment
  RSA0060039  Clarkia imbricata Peter H. Raven, R. Snow 1958-7-23 13692 Sonoma 4551 Vine Hill Road, near Pitkin Marsh 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
  CAS-BOT-BC163472  Clarkia purpurea subsp. quadrivulnera Eliz. Parsons Hawver 1915-6-1 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC163470  Clarkia purpurea subsp. quadrivulnera H. E. Parks; S. T. Parks 1930-5-10 0606 Sonoma In open hills around Knight's Valley Comment
  CAS-BOT-BC163471  Clarkia purpurea subsp. quadrivulnera Walter Knight; Irja Knight 1963-8-25 404 Sonoma Magnolia Ave, near cemetery, Petaluma Comment
  POM191622  Clarkia purpurea subsp. quadrivulnera H. E. Parks, S. T. Parks 1930-5-10 606 Sonoma Open hills around Knight s Valley Comment
  CAS-BOT-BC172355  Clarkia purpurea subsp. viminea J. W. Congdon 1880-6-5 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC164745  Clarkia rhomboidea Alice Eastwood 1915-6-6 4684 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC164746  Clarkia rhomboidea Milo S. Baker 1926-4-10 220 a - Son. Ser. Sonoma Mt. St. Helena - 1 mi. S.E. of Inn Comment
  CDA5445  Claytonia exigua D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .287 Sonoma Cavedale Rd. Comment
  CAS-BOT-BC439317  Claytonia exigua subsp. exigua Roxana S. Ferris 1962-4-14 13585 Sonoma Ca. 1/8 mi. beyond County dump Comment
  RSA6471  Claytonia exigua subsp. exigua Jens Clausen 1933-3-26 745 Sonoma Harrison Grade, betwen Grtaon and Occidental. In orchard, gravelly soil. Comment
  UCD100597  Claytonia exigua subsp. glauca G. F. Hrusa 1991-4-6 8310 Sonoma app. 1/4 m. N of Ida Clayton Rd. on N shoulder of Mt. St. Helena. 426 Comment
  CHSC26434  Claytonia gypsophiloides P. Kunst 1977-4-11 16 Sonoma Moist open area within Redwood and Mixed Evergreen Forest. 121 Comment
  UC480640  Claytonia gypsophiloides Carl Meyer 1929-3-29 Sonoma Comment
  CAS-BOT-BC439639  Claytonia parviflora subsp. parviflora G. H. Mallory 1920-3-29 s.n. Sonoma East end of Sonoma Ave, Santa Rosa Comment
  UC72567  Claytonia sibirica Milo S. Baker 1898-4-5 3 Sonoma e of Stewart's Point (grade) Comment
  CAS-BOT-BC92749  Clematis ligusticifolia Peter Rubtzoff 1970-8-31 6349 Sonoma Along bank of Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC92754  Clematis ligusticifolia John I. Carlson 1917-7-23 s.n. Sonoma Preston. Comment
  RSA295  Clematis ligusticifolia E. R. Johnson 1928-8-22 1109 Sonoma Russian River, 1/2 mile E of Cloverdale Comment
  UC1084477  Clematis ligusticifolia G. Thomas Robbins 1937-6-18 246 Sonoma Santa Rosa, Santa Rosa Creek Comment
  UC302140  Clematis ligusticifolia Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  SEINET12050353  Clintonia andrewsiana F. H. Utech 1988-1 88 -235 Sonoma Gualala River near CA 1 15 Comment
  UCD13248  Clintonia andrewsiana Becky Wilson 1973-5-31 115 Sonoma Canyon Rd, W of Geyserville. Comment
  CAS-BOT-BC238061  Collinsia Alice Eastwood 1922-5-5 11290 Sonoma Mt. St. Helena Comment
  UC972155  Collinsia greenei Helen K. Sharsmith 1952-6-18 4130 Sonoma ca 0.8 mi w jct Socrates Mine rd and Pine Flat-Middletown rd; Inner North Coast Ranges, Mayacamas Mtns 914 Comment
  UCD161353  Collinsia greenei James A Neilson Jr. 1976-5-5 3698 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1/2 mile north of the Geysers Road. Aidlin-Gouvea Leasehold, ca. 400 yards north of well site #1. (coordinates and location estimated by label maker.) Comment
  CAS-BOT-BC366865  Collinsia heterophylla Greg de Nevers 1998-4-21 11157 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Below Jim & Donna's house 400 Comment
  UC1032564  Collinsia heterophylla H. S. Yates 1934-4-22 3841 Sonoma 2 mi sw of Mark West 152 Comment
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Dec 13 2013
  RSA17714  Collinsia sparsiflora var. arvensis Elmer I. Applegate 1934-3-25 8850 Sonoma Sansal Creek, Pine Flat region, west slope Mayacama Mountains. Comment
  UC353937  Collinsia sparsiflora var. collina unknown 1928-4-20 2976 b Sonoma Rincon Valley Comment
  UC76211  Collinsia sparsiflora var. sparsiflora Milo S. Baker 1898-4-6 Sonoma Between Gualala R. and Skaggs Springs Gualala River Comment
  JEPS22306  Collinsia tinctoria Rimo Bacigalupi 1958-5-24 6363 Sonoma just n Camp Meeker (n slope of Alder Creek Canyon, a small side canyon in Dutch Bill Creek Canyon); Alder Creek Canyon, Dutch Bill Creek Canyon 97 Comment
  UC879756  Collomia grandiflora Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
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Jan 23 2016
  RSA697153  Convolvulus luteolus var. saxicola J. R. Bruff 1936-8-21 s.n. Sonoma Bodega Bay. Comment
  CAS-BOT-BC376337  Cordylanthus Greg de Nevers 1997-8-17 11074 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  JEPS62607  Cordylanthus maritimus subsp. palustris T. I. Chuang with Fei-Mei Chuang 1970-8-25 6846 Sonoma Coastal salt marsh nw of Bodega Bay (U. C. Biological Reserve); U. C. Biological Reserve Comment
  JEPS28863  Cordylanthus pilosus subsp. pilosus Roxana S. Ferris and Laura Lorraine 1960-9-30 13594 Sonoma Upper Harrison Grade Comment
  JEPS6812  Cordylanthus pilosus subsp. pilosus W. L. Jepson 1933-8-1 16549 Sonoma Agua Caliente Comment
  JEPS128252  Cordylanthus pringlei Roger Raiche 2000-7-15 140 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC238227  Cordylanthus tenuis subsp. brunneus Francis W. Pennell 1940-7-3 26044 Sonoma Hoods Peak, n.e. of Kenwood 731 Comment
  CAS-BOT-BC238237  Cordylanthus tenuis subsp. capillaris Walter Knight; Irja Knight 1963-8-13 175 Sonoma Harrison Grade, near Occidental at county dump rd. Comment
  JEPS28819  Cordylanthus tenuis subsp. capillaris L. R. Heckard 1962-11-27 1317 Sonoma 3/4 mi nw Occidental School (along Stoetz Lane) Comment
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Jul 27 2009
  JEPS74989  Cordylanthus tenuis subsp. capillaris T. I. and F. M. Chuang 1975-7-5 7520 Sonoma n Occidental (Stoetz Lane, about 3/4 mi w of Harris Grade Road) Comment
  UC1239008  Cordylanthus tenuis subsp. capillaris Freed W. Hoffman 1947-9-5 1251 Sonoma between Tyrone and Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UC761837  Cordylanthus tenuis subsp. capillaris R. F. Hoover 1942-7-13 5916 Sonoma 3 mi s Monte Rio Comment
  CAS-BOT-BC368072  Coreopsis grandiflora Greg de Nevers 1998-6-9 11273 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Valley Rd., at mouth of John Kuffenotchi's driveway. 400 Comment
  UCD130836  Corethrogyne filaginifolia Mary M. Hektner; Sue Dakuzaku 1974-6-19 27 Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. Comment
  UCR255684  Cornus glabrata Greg de Nevers 1998-4-27 11196 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 197 Comment
  CAS-BOT-BC210429  Cornus sericea Peter Rubtzoff 1951-7-22 534 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC210439  Cornus sericea John Thomas Howell 1946-8-17 22874 Sonoma Cunningham Marsh Comment
  UC72918  Coronopus didymus Miss M. Alice King 1897-5-1 Sonoma near Healdsburg (Dry Creek); Dry Creek Comment
  CAS-BOT-BC180188  Corylus cornuta subsp. californica Peter Rubtzoff 1952-6-9 1188 Sonoma N slope of Fitch Mountain, near Healdsburg Comment
  UCSB1014  Corylus cornuta subsp. californica Keator, Glenn 1959-4-2 Sonoma 0.6 miles north of junction of Laguna road and 5.1 miles north of Sebastopol in Vinehill region Comment
  RSA94302  Cotula coronopifolia Peter Rubtzoff 1952-5-10 1011 Sonoma Lower part of the Upper Marsh Comment
  CAS-BOT-BC427645  Crassula aquatica Greg de Nevers 1993-5-6 10435 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. 457 Comment
  CAS-BOT-BC427646  Crassula aquatica Greg de Nevers 1993-5-30 10461 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. 457 Comment
  CAS-BOT-BC427918  Crassula connata Catherine Best 1987-3-28 1238 Sonoma Bodega Head Comment
  UCD13110  Crassula connata Eileen F. Chun 1974-5-11 78 Sonoma Sonoma CO. Northside of Bodega Head. Sea level. Comment
  JEPS107056  Crataegus suksdorfii J. Greenhouse with Gene Cooley, John Game 2004-6-15 5091 Sonoma Cunningham Marsh, ~3 mi SSE of Sebastopol, ~0.5 mi S of Lone Pine Rd 35 Comment
  SBBG30057  Cressa truxillensis M. S. Baker 1946-1 11710 Sonoma less than 1 mi N of jct of Sears Pt Cutoff and Black Pt Hwy Comment
  UC1561762  Crupina vulgaris Liam Davis 1990-5-17 9078 -3 Sonoma about 200 m s Lake Llsanjo (along e side of Canyon Trail); Annadel State Park 243 Comment
  CDA36778  Crupina vulgaris D. B. Joley 1976-7-28 35 Sonoma Bennett Valley Road, south of golf course. 0 Comment
  CAS-BOT-BC190105  Crypsis schoenoides Peter Rubtzoff 1970-5-30 6243 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC190106  Crypsis schoenoides Peter Rubtzoff 1969-10-29 6200 Sonoma Pond on River Road 3 miles west of Fulton. Comment
  SEINET7067255  Cryptantha A. G. Vestal 1947-5-13 s.n. Sonoma About 1.3 miles north of Salomon Creek. Coordinate datum: NAD27. UTM 10, 647035mE, 3964854mN. Comment
  UCD167559  Cryptantha James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Squaw Creek. 1/4 mile from Black Hawk Ranch headquarters. 20 feet above creek. (Exact location unkown. Coordinates estimated by label maker. Black Hawk Ranch location not found. Location georeferenced at the end of Ottobani Ridge between Big Sulphur Creek and Squaw Creek because neilson collected in that area on 18 June 1976.) Comment
  UC79259  Cryptantha flaccida Katharine Brandegee May 1890 Sonoma Cloverdale Comment
  UCD158803  Cryptantha hispidula James A. Neilson Jr. 1974-3-16 2868 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  RSA0079375  Cryptantha muricata var. jonesii Milo S. Baker 1947-5-7 11735 Sonoma SW slope of Hood Mt. near base of Sugar Loaf. 366 Comment
  RSA785747  Cucurbita Peter Rubtzoff 1958-8-9 3847 Sonoma Laguna de Santa Rosa north of Sebastopol near Occidental Road. Comment
  UCD110844  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC85471  Cupressus sargentii Carl Brandt Wolf; E. R. Johnson 1934-10-13 2140 Sonoma 2 8/10 mi. from Camp Meeker on road to Monte Rio 60 Comment
  UC1502540  Cupressus sargentii S. W. Edwards 1981-9-20 Sonoma ne of Occidental (on Stoetz Lane, off Harrison Grade) Comment
  UC618967  Cupressus sargentii E. Armstrong 1934-3-26 923 Sonoma 2 mi n Camp Meeker; Sebastopol Quadrangle Comment
  UCD132952  Cupressus sargentii Frederica Bowcutt 1997-7-18 2187 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  RSA120965  Cuscuta campestris Anita Noldeke 1956-7-24 s.n. Sonoma Sebastopol Comment
  UCD164540  Cuscuta campestris Peter Rubtzoff 1975-8-15 8321 Sonoma Laguna, Chileno Valley. Comment
  CDA15297  Cuscuta howelliana G. F. Hrusa, R. Buckmann (DFG) 1996-10-5 13583 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m. SW of Calistoga. Sheet 1 of 3. Comment
  UC1042318  Cuscuta obtusiflora var. glandulosa John Thomas Howell 1946-8-17 22851 Sonoma n of Sebastopol; The Laguna Comment
  RSA0022352  Cynodon Peter Rubtzoff 1970-9-13 6385 Sonoma Russian River bottom at Forest Hills (5.5 mi east of Guerneville). Comment
  POM369230  Cynoglossum grande Christopher Davidson 1977-6-20 6032 Sonoma Ridge Crest road, on Sea Ranch property south of Gualala River. 30 Comment
  UCD60152  Cynosurus echinatus Frederica Bowcutt 1984-6-23 445 Sonoma Salt Point State Park. Approx. 20 miles north of Jenner and 80 miles south of Fort Bragg on the Sonoma County coast. West of Highway 1, approx. 1/3 mile north of Gerstle Cove. 15 Comment
  UCR248758  Cynosurus echinatus Peter Rubtzoff 1978-6-11 9209 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley 35 Comment
  UC837657  Cyperus eragrostis Milo S. Baker 1937-9-29 6037 Sonoma 4 mi. s.e. Sonoma (on Vineburg-Napa rd.) Comment
  CAS-BOT-BC114338  Cyperus esculentus Fembrini 1932-5-27 s.n. Sonoma Cloverdale. Comment
  UCR254758  Cyperus niger Peter Rubtzoff 1970-7-17 6290 Sonoma San Francisco Bay Region, 5 miles north of Sears Point 9 Comment
  CAS-BOT-BC113915  Cyperus niger var. capitatus Peter Rubtzoff 1955-9-10 2136 Sonoma East Guernewood, near Guerneville. On a Russian River island. Comment
  CAS-BOT-BC113916  Cyperus niger var. castaneus John Thomas Howell; J. W. Stacey 1936-7-26 12675 Sonoma Pitkin Marsh, 5 mi. N of Sebastapol. Comment
  UC845295  Cypripedium montanum Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
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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-BC70724  Cystopteris fragilis A. A. Heller 1902-6-26 s.n. Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  UC1100154  Damasonium californicum Herbert L. Mason 1928-4-13 4325 Sonoma near Petaluma Petaluma Comment
  CAS-BOT-BC192268  Danthonia californica David L. Morgan 1956-5-17 s.n. Sonoma On Watmaugh Rd., 1/2 mi. W. of junction of Arnold Drive Comment
  UCD60473  Danthonia californica Winfield H. Hart 1965-2-2 s.n. Sonoma Sonoma Coast State Park, Shell Beach. Comment
  UCD60988  Danthonia californica John Thomas Howell 1930-6-8 5217 Sonoma 8 miles W of Petaluma on Bodega Road. Comment
  UCD37939  Danthonia californica var. americana Beecher Crampton 1962-5-8 6411 Sonoma Sonoma County, 5 miles south of Geyserville. Comment
  UC19640  Datisca glomerata F. T. Bioletti 1891-9-7 Sonoma Los Guilucos Comment
  UCD166101  Datura stramonium Peter Rubtzoff 1971-8-23 6651 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC292097  Delairea odorata Greg de Nevers 1986-12-17 8117 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC9014  Delphinium decorum A. A. Heller 1938-5-14 15089 Sonoma East of Bodega Bay Comment
  CAS-BOT-BC9015  Delphinium decorum A. A. Heller; H. E. Brown 1902-4-11 5266 Sonoma Bodega Bay Comment
  CAS-BOT-BC9020  Delphinium decorum John Thomas Howell 1931-4-18 6416 Sonoma Larkspur Rock near Bodega Bay Comment
  CAS-BOT-BC10341  Delphinium hesperium Joseph Whipple Congdon 1880-6-1 s.n. Sonoma Santa Rosa Comment
  JEPS6240  Delphinium hesperium M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 220 Sonoma between Guerneville and Monte Rio; Russian River Comment
  LA38290  Delphinium hesperium Lewis; Epling, Stebbins 515 Sonoma Bodega Bay, 1 mi. E of ocean Comment
  CAS-BOT-BC10066  Delphinium hesperium subsp. pallescens John Thomas Howell 1934-3-27 s.n. Sonoma Pope Canyon, Napa Range Comment
  CAS-BOT-BC10128  Delphinium luteum A. A. Heller 1940-5-17 15634 Sonoma On State Highway #1, a mile or so east of Bodega Bay Comment
  CHSC63924  Delphinium nudicaule John Hale 1990-4-13 25 Sonoma E of Austin Creek. 210 Comment
  UC1299392  Delphinium nudicaule Freed W. Hoffman 1947-4-13 660 Sonoma near Guerneville; North Coast Ranges, Gilliam Creek Comment
  CAS-BOT-BC8012  Delphinium nudicaule Joseph Whipple Congdon 1880-5-2 s.n. Sonoma Cleveland's Creek Comment
  CAS-BOT-BC9896  Delphinium nudicaule Aven Nelson; Ruth Ashton Nelson 1933-5-14 555 Sonoma Kenwood Comment
  POM151019  Delphinium nudicaule Michener, Bioletti 1893-4-25 s.n. Sonoma [Unspecified] Comment
  RSA304847  Delphinium nudicaule James R. Shevock 1971-3-21 814 Sonoma Near Sugarloaf St Park 152 Comment
  UCD95873  Delphinium nudicaule Erik Beever; Patti Togioka and Valerie Bullock 1993-5-8 235 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail. 304 Comment
  CAS-BOT-BC121722  Delphinium patens subsp. patens D. E. Breedlove 1980-5-3 44653 Sonoma Pepperwood Ranch W of Knights Valley Comment
  RSA122789  Delphinium variegatum B. O. Schreiber 1936-3-5 2210 Sonoma 2 miles WNW of Mark W Springs. 122 Comment
  CAS-BOT-BC26766  Dendromecon myrtifolia Amos Arthur Heller; H. E. Brown 1902-5-29 5618 Sonoma Mt. Hood Comment
  SEINET12091842  Dendromecon rigida F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -105 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 1.6 mi N of Cavedale Rd from jct 396 Comment
  CAS-BOT-BC192607  Deschampsia cespitosa subsp. holciformis John Thomas Howell 1945-5-30 20898 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC227667  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1971-6-25 6571 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing. Comment
  CAS-BOT-BC210040  Deschampsia danthonioides Peter Rubtzoff 1969-5-24 6061 Sonoma Vernal pool 7.5 mi. northeast of Penngrove on Lichau Road. 426 Comment
  CAS-BOT-BC201967  Deschampsia elongata Peter Rubtzoff 1962-6-23 4960 Sonoma Guerneville Marsh Comment
  POM207093  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UC53607  Deschampsia elongata Jos. Burtt Davy July 1896 Sonoma Russian R. below Guerneville; Russian R. Comment
  UCD63718  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3555 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  CAS-BOT-BC383034  Deschampsia elongata Greg de Nevers 1998-6-15 11288 Sonoma CYO Camp on Bohemian Highway. Comment
  RSA264775  Dicentra formosa subsp. formosa Peter Rubtzoff 1975-4-27 7950 Sonoma Forest Hills, 5.5 miles east of Guerneville. At 9981 Old River Road Comment
  CAS-BOT-BC209246  Dichanthelium acuminatum subsp. acuminatum Leo Koch 1938-6-12 311 Sonoma Pitkin Marsh about 10 miles west of Santa Rosa Comment
  CAS-BOT-BC208926  Dichanthelium acuminatum subsp. acuminatum F. G. Krauss 1893-10-28 s.n. Sonoma Geyser Canyon Comment
  CAS-BOT-BC221848  Dichanthelium acuminatum subsp. fasciculatum John Roos; Lucille Roos 1956-9-1 6598 Sonoma The Geysers Comment
  CAS-BOT-BC502215  Dichelostemma capitatum A. A. Heller; H. E. Brown 1902-3-14 5065 Sonoma near Windsor Comment
  CAS-BOT-BC502216  Dichelostemma capitatum A. A. Heller; H. E. Brown 1902-3-14 5065 Sonoma near Windsor Comment
  UCD166483  Dichelostemma capitatum Peter Rubtzoff 1963-5-26 5145 Sonoma Bennett Mountain Lake. Comment
  POM169358  Dichelostemma capitatum subsp. capitatum A. A. Heller, H. E. Brown 1902-3-17 5087 Sonoma Hills 8 miles northeast of Santa Rosa Comment
  CHSC20585  Dichelostemma congestum Robert A. Schlising; Glenn Keator 1965-5-22 2824 Sonoma About 1 mile north of Occidental; Comment
  CAS-BOT-BC376299  Digitalis purpurea Greg de Nevers 1992-6-26 10190 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  CAS-BOT-BC176146  Digitaria Peter Rubtzoff 1969-8-29 6170 Sonoma Salmon Creek, ca. 0.5 mi. upstrom from Hwy. #1 Comment
  CAS-BOT-BC176365  Digitaria sanguinalis Peter Rubtzoff 1962-8-24 5069 Sonoma Fife Creek Marsh. Comment
  UCD64005  Digitaria sanguinalis Collector Unknown 1941-11-1 Sonoma Santa Rosa Cr. by old S.P. R.R. Comment
  CAS-BOT-BC152293  Diplacus congdonii Milo S. Baker 1928-3-7 2729 c Sonoma Santa Rosa-St. Helena Road about 4 mi. East Rincon Summit Comment
  CAS-BOT-BC151378  Diplacus tricolor Peter Rubtzoff; H. A. Froebe 1971-5-30 6482 Sonoma 4.25 mi. west of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC196920  Distichlis spicata David L. Morgan 1956-5-8 s.n. Sonoma 3 miles southeast of Petaluma on Lakeville road Comment
  UC480629  Dodecatheon hendersonii Carl Meyer 1928-3-3 311 Sonoma Santa Rosa 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
  JEPS19382  Downingia concolor var. concolor G. Thomas Robbins 1937-5-23 179 Sonoma near Wright School (along road between Sebastopol and Santa Rosa) Comment
  RSA783713  Downingia concolor var. concolor Peter Rubtzoff 1969-5-11 6039 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  UC726434  Downingia concolor var. concolor A. A. Heller 1941-5-17 16135 Sonoma 2 mi n Windsor (on U.S. Highway 101) Comment
  UCR279869  Downingia concolor var. concolor Peter Rubtzoff 1969-5-11 6039 Sonoma Laguna de Santa Rosa, NE of Graton, at end of Piner Road 30 Comment
  RSA654064  Downingia concolor var. concolor Beecher Crampton 1966-5-10 7728 Sonoma 6.5 miles N of Sonoma on State Hwy 12, Glen Ellen station (CA dept. of forestry). Comment
  SD108305  Downingia concolor var. concolor Walter Knight, Irja Knight 1980-5-12 Sonoma 0.5 mile south of junction of highways 116 and 121 in Sonoma Valley. Comment
  JEPS3102  Downingia cuspidata F. T. Bioletti 1893-6-10 Sonoma Los Guilucos Valley; ; Los Guilucos Valley, Sonoma Co. Comment
  JEPS87237  Downingia pusilla Jack and Betty Guggolz 1992-5-6 1278 Sonoma 1.25 mi ne Windsor 42 Comment
  CAS-BOT-BC159443  Drymocallis glandulosa var. glandulosa G. DeNevers 1981-4-25 870 Sonoma Mark West Creek and Leslie Creek, Pepperwood Ranch Comment
  CAS-BOT-BC159444  Drymocallis glandulosa var. glandulosa G. DeNevers 1981-5-20 1221 Sonoma In the Garrison Yard, Pepperwood Ranch Comment
  CAS-BOT-BC159450  Drymocallis glandulosa var. glandulosa A. A. Heller; H. E. Brown 1902-4-11 5260 Sonoma Bodega Bay Comment
  CAS-BOT-BC71015  Dryopteris arguta D. E. Breedlove 1980-6-28 44813 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC1193406  Dryopteris arguta P. Zinke 1950-4-25 115 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  UCR222528  Dryopteris arguta George K. Helmkamp, E. A. Helmkamp 2010-6-5 16249 Sonoma North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville 44 Comment
  UC62802  Dryopteris expansa J. Burtt Davy 1896-3-13 1641 Sonoma near Duncan Mills Comment
  CAS-BOT-BC428383  Dudleya farinosa L. R. Abrams 1920-7-3 7634 Sonoma Near Stewarts Point Comment
  CAS-BOT-BC428384  Dudleya farinosa L. R. Abrams 1920-7-3 7634 Sonoma Near Stewarts Point 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-BC176366  Echinochloa crus-galli Peter Rubtzoff 1955-9-10 2139 Sonoma East Guernewood, near Guerneville. Comment
  UCD60945  Echinochloa crus-pavonis Virginia Bufford 1935-9-8 79 Sonoma Pitkins Yard, Vine Hill District. Comment
  UCD61074  Echinochloa muricata P. B. Kennedy 1925-8-4 Sonoma Petaluma. Comment
  RSA800157  Eleocharis Peter Rubtzoff 1972-8-26 6858 Sonoma Laguna, Chileno Valley. Comment
  UCD49703  Eleocharis acicularis G. F. Hrusa; R. Gross 1996-6-30 13062 Sonoma permanent spring-derived pool at W end of Diamond Mtn. Rd. Lower of two pools, approx. 150 meters apart. 2 m. SW of Calistoga. Single colony on W side of pool. Quadrangle: Calistoga 7.5 700 Comment
  CAS-BOT-BC112197  Eleocharis radicans Peter Rubtzoff 1970-7-17 6288 Sonoma 5 mi north of Dears Point. Comment
  CAS-BOT-BC112275  Eleocharis rostellata Peter Rubtzoff 1951-6-2 93 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  POM193576  Elymus R. C. Bacigalupi 1926-5-2 1405 Sonoma Cazadero. Comment
  OBI70585  Elymus caput-medusae D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .278 Sonoma Cavedale Rd 518 Comment
  UCR42318  Elymus elymoides L. F. LaPre 1985-6-5 s.n. Sonoma Socrates Mine, c. 9 mi. ENE of Geyserville 976 Comment
  UCD158877  Elymus glaucus James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2902 Sonoma Mayacmas Mountains; northeast corner of Section 15, The Geysers. (Elevation estimated by label maker using Google Earth.) 609 Comment
  LA14814  Elymus glaucus H. S. Yates; 1937-6-5 6574 Sonoma 3 mi SE of Wildmont 121 Comment
  UCD62299  Elymus glaucus R. Tofsrud 1941-5-1 52 Sonoma Mc Donald Reservoir. Comment
  CAS-BOT-BC203705  Elymus glaucus subsp. glaucus Mary P. Wells 1984-5-24 282 Sonoma Annadel State Park, Santa Rosa Comment
  UCD62363  Elymus glaucus subsp. glaucus 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
  CAS-BOT-BC203706  Elymus glaucus subsp. glaucus K. Wagnon 1939-5-20 209 Sonoma Along road by Santa Rosa Airport Comment
  RSA129555  Elymus glaucus subsp. virescens H. S. Yates 1936-5-17 5624 Sonoma 1.5 miles E of Bodega Port 122 Comment
  CAS-BOT-BC162054  Elymus lanceolatus subsp. lanceolatus R. D. Stone 1983-6-14 543 Sonoma Headwaters of Squaw Creek drainage near ridgeline, ca. 1.2 mile northwest of Geyser Rock. 1021 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
  UCD84285  Epilobium Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  SEINET12194346  Epilobium brachycarpum W. Knight, Knight, I. 1984-1 5418 Sonoma Lakeville Hwy, on bank of Petaluma River 3 Comment
  UCR244511  Epilobium campestre Peter Rubtzoff 1962-7-6 4976 Sonoma Coast Range, Laguna de Santa Rosa near Trenton Road [south of Woolsey Road] 21 Comment
  CAS-BOT-BC166837  Epilobium canum subsp. latifolium F. G. Krauss 1893-11-2 s.n. Sonoma Krauss Ranch Comment
  SEINET13287585 Image available Epilobium ciliatum A. G. Vestal 1937-6-18 s.n. Sonoma Comment
  RSA800036  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1969-8-26 6150 Sonoma On River Road. 3 miles W of Fulton. Comment
  POM231111  Epilobium ciliatum subsp. watsonii Jens Clausen 1935-5-24 1082 Sonoma 3.7 miles south of Jenner on the Bodega road Comment
  UCD158775  Epilobium ciliatum subsp. watsonii James A. Neilson Jr. 1974-7-10 2814 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UC1042502  Epilobium densiflorum Peter Rubtzoff 1951-8-4 576 Sonoma open area between Upper Marsh and Lower Marsh (near Forestville); Pitkin Marsh Comment
  RSA800407  Epilobium hallianum Peter Rubtzoff 1959-5-30 4058 Sonoma Freestone Marsh. Comment
  SD251254  Epilobium hallianum Peter Rubtzoff 1957-5-11 3334 Sonoma Occidenta Marsh Comment
  JEPS128200  Epilobium minutum Roger Raiche 2000-5-4 068 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC173545  Equisetum Peter Rubtzoff 1973-8-21 7254 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC173546  Equisetum Peter Rubtzoff 1973-8-29 7285 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
  RSA784482  Equisetum Peter Rubtzoff 1973-8-21 7254 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD165326  Equisetum Peter Rubtzoff 1973-8-21 7253 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC210085  Equisetum Peter Rubtzoff 1963-8-17 5237 Sonoma Russian River Mouth Marsh. Comment
  CAS-BOT-BC57040  Equisetum arvense Peter Rubtzoff 1960-6-9 4477 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road Comment
  CAS-BOT-BC57048  Equisetum arvense Peter Rubtzoff 1958-8-16 3879 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road) Comment
  RSA785850  Equisetum hyemale var. affine Peter Rubtzoff 1961-10-23 4785 Sonoma Laguna de Santa Rosa area NE of Graton. Comment
  CAS-BOT-BC176180  Equisetum laevigatum Peter Rubtzoff 1953-5-18 1415 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC57229  Equisetum laevigatum J. W. Congdon 1880-10-27 s.n. Sonoma Healdsburg Comment
  RSA239707  Equisetum laevigatum Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1093 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  RSA784475  Equisetum laevigatum Peter Rubtzoff 1961-8-26 4725 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  CAS-BOT-BC57644  Equisetum telmateia John H. Thomas 1976-6-16 18293 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  UCD135599  Equisetum telmateia subsp. braunii Frederica Bowcutt 1997-7-18 2180 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain, West Bear Ck. 365 Comment
  UCD135614  Equisetum telmateia subsp. braunii Linda A. Bell 1975-5-18 159 Sonoma State Highway 1, ca. 1/2 mile south of its junction with State Highway 116. 22 Comment
  CAS-BOT-BC312697  Eragrostis Peter Rubtzoff 1970-9-2 6357 Sonoma Russian River bottom at Mirabel Park. Comment
  CDA2089  Eragrostis cilianensis E. P. Delfino Sonoma 4051 Harrison Grade Road, Sebastopol. 0 Comment
  CAS-BOT-BC213573  Eragrostis hypnoides Peter Rubtzoff 1961-8-25 4718 Sonoma Forest Hills, east of Guerneville, bottom of Russian River Comment
  UC1146674  Eragrostis hypnoides Freed W. Hoffman 1942-9-30 2164 Sonoma along Russian River; North Coast Ranges, along Russian River Comment
  RSA0023078  Eragrostis hypnoides Peter Rubtzoff 1965-8-16 5599 Sonoma Russian River bottom at Forest Hills, 5.5 mi E of Guerneville. Comment
  CAS-BOT-BC204642  Eragrostis mexicana subsp. virescens David L. Morgan 1960-6-22 s.n. Sonoma Watkins Ranch, 1/2 mi. NW of Penngrove on Redwood Highway Comment
  CAS-BOT-BC164039  Erechtites minimus Peter Rubtzoff 1951-8-25 668 Sonoma Forested hills southeast of Guerneville. Comment
  UC17604  Eremocarpus setiger H. N. Bolander 1860-9-18 440 Sonoma Cloverdale Comment
  CAS-BOT-BC131609  Ericameria arborescens Walter Knight; Irja Knight 1963-9-1 133 Sonoma Harold Smith Ranch on Pine Mt. Rd NE of Cloverdale Comment
  CAS-BOT-BC368007  Ericameria arborescens Greg de Nevers 1989-9-5 9100 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  UC567089  Ericameria arborescens J. B. Spring 1932-7-7 97 Sonoma 2/5 mi sw Veader Mountain; Napa Quadrangle 609 Comment
  CAS-BOT-BC131610  Ericameria arborescens Walter Knight; Irja Knight 1963-8-23 194 Sonoma Joost Ranch, Calistoga Rd. Comment
  UCD132089  Erigeron Jackie Sinkey; Rene Westbrook 1976-4-14 s.n. Sonoma Bodega Head. Comment
  JEPS82249  Erigeron biolettii Roger Raiche 1983-7-15 30496 Sonoma along Skaggs Spring Rd/Stewarts Point Rd 5.8 mi e intersection with Annapolis Road 45 Comment
  CAS-BOT-BC293629  Erigeron biolettii M. Morse 1922-1-1 317 Sonoma Russian River, near Guerneville Comment
  UC895875  Erigeron glaucus Marcus E. Jones, A. M. 1882-7-17 3622 Sonoma Duncan's Mills Comment
  UC1192210  Erigeron greenei Verne Grant, Herbert L. Mason 1946-7-5 12898 Sonoma 2 mi east of Occidental Comment
  CAS-BOT-BC214551  Erigeron philadelphicus Peter Rubtzoff 1951-6-9 185 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC214552  Erigeron philadelphicus Peter Rubtzoff 1951-7-28 553 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  UCD132075  Erigeron sumatrensis G. F. Hrusa 1996-3-29 12737 Sonoma area at end of Neeley Road. 2 m. south of Guerneville and 3 m. north of Bohemian Grove on Russian River. 140 Comment
  UCD112399  Eriodictyon californicum Christopher Mallek 2008-5-2 s.n. Sonoma Hooker Canyon. 590 Comment
  UCD119246  Eriodictyon californicum Frederica Bowcutt 1994-6-25 1918 Sonoma 670 Comment
  RSA0081676  Eriogonum cedrorum Roger Raiche 1984-6-23 40234 Sonoma The Cedars, 5 miles N of Cazadero on King Ridge Road, headwaters Big Austin Creek, above tributary creek referred to locally as Azalea Creek (NE fork before Layton Mine bldgs.). 549 Comment
  JEPS82261  Eriogonum compositum var. compositum Roger Raiche 1983-6-4 30373 Sonoma s side Sweetwater Springs Road 3.9 mi w its origin at West Side Highway ((above Porter Creek e of its intersection with John Gordon Creek)) Comment
  UCD158782  Eriogonum compositum var. compositum James A. Neilson Jr. 1974-6-1 2775 Sonoma Mayacmas Mountains, Geyser Rock, northeastern Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CAS-BOT-BC250015  Eriogonum fasciculatum var. foliolosum Dorothy Scherer 1996-9-5 066 Sonoma North side of Fort Ross Rd. at intersection with Hwy 1. Fort Ross State Historic Park 51 Comment
  CAS-BOT-BC250016  Eriogonum fasciculatum var. foliolosum Miss E. Cannon No date on label s.n. Sonoma Black Point Comment
  UC85861  Eriogonum latifolium Alice Eastwood 1900-7-4 Sonoma Bodega Point Comment
  CAS-BOT-BC259468  Eriogonum luteolum Catherine Best 1981-8-23 s.n. Sonoma Stoetz Lane, 2 m. east of Occidental Comment
  UCD100298  Eriogonum luteolum Frederica Bowcutt 1994-6-25 1912 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Grey Pine Trail about 1/2 way between Bushy Peak Trail and Meadow Trail. 530 Comment
  CDA13784  Eriogonum luteolum var. luteolum G. F. Hrusa, G. L. Stebbins, B. J. McCaskill 1993-9-14 11421 Sonoma 3 mi. W of Occidental along Coleman Valley Rd. 304 Comment
  UC6525  Eriogonum luteolum var. luteolum Alice King Oct. 1896 Sonoma Healdsburg Comment
  UC77625  Eriogonum nudum var. auriculatum Dr. E. Palmer Sonoma Petaluma Comment
  RSA221  Eriogonum nudum var. auriculatum E. R. Johnson 1928-8-22 1112 Sonoma Cloverdale Comment
  CAS-BOT-BC261697  Eriogonum nudum var. nudum Walter Knight; Irja Knight 1963-9-15 239 Sonoma Los Alamos Rd, Santa Rosa Comment
  CHSC107500  Eriogonum vimineum D. G. Kelch; Troy McGregor 2010-8-22 10 .356 Sonoma Nr Peak of Geyser Peak Rd. Comment
  SEINET6793133 Image available Eriogonum vimineum Sally Walker 1983-7-18 s.n. Sonoma 3 miles southwest of Occidental Comment
  CAS-BOT-BC262389  Eriogonum vimineum G. DeNevers 1981-5-23 1268 Sonoma Pepperwood Ranch. Along Franz Valley Road. Bottom of Road on SW side Comment
  HSC5598  Eriophyllum lanatum H. E. Parks, S. T. Parks 1930-5-10 837 Sonoma Knights Valley 183 Comment
  UCSB19782  Eriophyllum lanatum Richardson, A. 1961-6-16 Sonoma Along Sweetwater Springs Rd. 1 mi. beyond turn to Armstrong Redwoods State Park north of Gurneville Comment
  CDA5239  Eriophyllum lanatum var. achilleoides G. D. Barbe 1982-5-27 3619 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  CAS-BOT-BC301285  Eriophyllum lanatum var. arachnoideum Walter Knight; Irja Knight 1963-10-27 396 Sonoma Spring Mt. Road Comment
  CAS-BOT-BC301286  Eriophyllum lanatum var. arachnoideum Lewis S. Rose 1964-6-3 64057 Sonoma N. end of Bodega Bay 6 Comment
  CAS-BOT-BC301291  Eriophyllum lanatum var. arachnoideum Alice Eastwood 1915-6-29 4860 Sonoma Bodega Point Comment
  CAS-BOT-BC301300  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan's Mills Comment
  JEPS34506  Eriophyllum lanatum var. arachnoideum M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma near Guerneville Comment
  UC133116  Eriophyllum lanatum var. arachnoideum Alice Eastwood 1900-9-30 Sonoma Bodega Point Comment
  UC31670  Eriophyllum lanatum var. arachnoideum Harley P. Chandler 1900-5-25 694 Sonoma Bodega Bay Comment
  UCD103117  Erodium brachycarpum Frederica Bowcutt 1994-6-24 1887 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Lower Bald Mountain Trail. 426 Comment
  UCSC000705  Eryngium aristulatum B. Bufford 1937-6-19 s.n. Sonoma near East Windsor East Windsor - Healdsburg 30 Comment
  UC420513  Eryngium aristulatum var. aristulatum V. King Chesnut 1887-7 Sonoma Santa Rosa Comment
  RSA80397  Eryngium aristulatum var. aristulatum F. W. Peirson 1925-8-8 6337 Sonoma 6 miles south of Santa Rosa Comment
  UC202767  Eryngium armatum A. D. E. Elmer July, 1903 4776 Sonoma Petaluma Comment
  UC20997  Eryngium armatum J. W. Congdon July 1888 Sonoma Petaluma Comment
  POM259278  Eryngium armatum J. T. Howell 1938-7-3 13947 Sonoma Stony Point. Comment
  UCD126741  Eryngium constancei G. F. Hrusa; R. Gross 1996-6-30 13057 Sonoma North Coast Biodiversity Arena; On the summit of Mayacmas Range at west end of Diamond Mtn. Rd.; 2 m. SW of Calistoga. 700 Comment
  OBI60135  Eryngium racemosum Joseph Andorfer Ewan 1935-5-13 9256 Sonoma Wright School on Sebastopal Rd Comment
  SEINET5342589  Erysimum concinnum A. A. Heller, H. E. Brown 1902-5-27 5607 Sonoma Bodega Bay. Comment
  UC3604  Erythronium helenae Edw. L. Greene 1892-4-20 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC403695  Eschscholzia californica J. Clausen 1935-5-24 1096 Sonoma 6.5 mi. S. of Jenner, on the Bodega road Comment
  JEPS51720  Eschscholzia californica W. L. Jepson 1911-4-30 4188 Sonoma near Glen Ellen; Sonoma Valley Comment
  SD40082  Eschscholzia californica Edith A. Purer 1932-7-29 4047 Sonoma Bodega Bay. Comment
  SEINET7067232  Eschscholzia californica A. G. Vestal 1947-5-12 s.n. Sonoma About 1 miles east of Occidental on the Occidental Road. Coordinate datum: NAD27. UTM Zone 10, 506085mE, 4250797mN. Comment
  UC10022  Eschscholzia californica Ivar Tidestrom 1895-6-14 Sonoma Petaluma Comment
  CAS-BOT-BC403696  Eschscholzia californica F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  CAS-BOT-BC202766  Euonymus occidentalis H. E. McMinn 1922-6-7 190 Sonoma Above Monte Rio Comment
  RSA90501  Euonymus occidentalis Keith Wagnon 1939-05 220 Sonoma Along Jonive Creek about 1/8 mile NE of Wagnon Ranch, 5 mile W of Sebastopol. Comment
  CDA34798  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, about 2 NW of Cloverdale. Comment
  RSA0051265  Euthamia occidentalis Greg de Nevers 2002-9-9 12841 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 152 Comment
  RSA0025192  Euthamia occidentalis Peter Rubtzoff 1961-9-20 4748 Sonoma Americano Creek, 0.9 mi west of Bloomfield. Comment
  CAS-BOT-BC239718  Fabaceae A. Day 1982-6-1 82 65 B Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC376407  Festuca Greg de Nevers 1997-6-7 11019 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On the Oak Hill Ranch burned area. 400 Comment
  RSA0065935  Festuca Greg de Nevers 1989-04 9062 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. 100 Comment
  CAS-BOT-BC422362  Festuca Peter Rubtzoff 1974-5-25 7455 Sonoma Upper Green Valley Marsh. Comment
  UC1011031  Festuca californica Virginia Bufford 1936-5-1 161 Sonoma Larkspur Rock Bodega Canyon Comment
  CAS-BOT-BC283190  Festuca californica subsp. californica G. DeNevers 1981-5-9 1098 Sonoma S of Redwood Canyon, Pepperwood Ranch Comment
  CAS-BOT-BC283192  Festuca californica subsp. californica Peter Rubtzoff 1952-6-10 1236 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg 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
  UCD65939  Festuca elmeri H. S. Yates 1937-5-31 6564 Sonoma 1 mile WSW of Petrified Forest 274 Comment
  CAS-BOT-BC278395  Festuca elmeri K. Wagnon 1939-5-22 217 Sonoma Top of Wagnon rock quarry, five miles west of Sebastopol Comment
  UC60789  Festuca idahoensis F. T. Bioletti 1897-6-8 Sonoma South Los G<sic> Valley Comment
Read comments
Oct 18 2008
  JEPS128349  Festuca myuros Roger Raiche 2000-4-8 030 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD66116  Festuca occidentalis Beecher Crampton 1955-6-17 2926 Sonoma State Hwy. 12, 1.6 miles west of Forestville. Comment
  UCD66500  Festuca subuliflora B. Crampton 1955-6-17 2961 Sonoma 2 miles east of Fort Ross. Comment
  UC924277  Fragaria chiloensis H. S. Reed 1947-5-7 215 Sonoma Bodega 15 Comment
  CAS-BOT-BC455955  Fragaria chiloensis Walter Knight; Irja Knight 1964-2-18 567 Sonoma Hiway #1, Rocky Point. Coastal bluff. Comment
  CAS-BOT-BC457583  Fragaria vesca subsp. californica Peter Rubtzoff 1953-5-17 1372 Sonoma Vacation Beach, near Guerneville Comment
  CAS-BOT-BC53277  Frangula californica subsp. californica Peter Rubtzoff 1951-8-18 616 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC218587  Fraxinus latifolia Peter Rubtzoff 1951-8-19 653 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  CDA29319  Fraxinus latifolia D. G. Kelch 2007-10-16 7 .644 Sonoma Novato. Novato Creek nr Pioneer Park. 0 Comment
  JEPS44085  Fraxinus latifolia W. L. Jepson 1903-10-4 2364 Sonoma near Guerneville; Bohemian Club Grove Comment
  UCD122049  Fraxinus latifolia Frederica Bowcutt 1997-7-18 2178 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
  CHSC22970  Fritillaria affinis Robert A. Schlising; Et al. 1962-3-31 2126 Sonoma Ca 2 mi NE of Kenwood along road in to Sugarloaf Ridge. Comment
  UC75633  Fritillaria affinis Miss Emma Lobenstin 1906-1 Sonoma Valley Ford Comment
  SEINET12050173  Fritillaria affinis F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -200 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 800 Comment
  SEINET8478865  Fritillaria lanceolata M. J. Williams 1968-4-6 s.n. Sonoma Trinity Grade. 213 Comment
  CAS-BOT-BC130357  Fritillaria liliacea Miss. L. S. Huffine 1927-4-1 s.n. Sonoma On road from Occidental to Sebastopol Comment
  UC197239  Fritillaria recurva Michener and Bioletti April 1892 Sonoma Hoods Peak Comment
  UC3634  Fritillaria recurva F. T. Bioletti 1892-1 Sonoma Hood's Peak Comment
  UC72490  Fritillaria recurva Milo S. Baker 1902-3-27 Sonoma Hood's Peak Comment
  UCD112402  Galium Christopher Mallek 2008-5-2 HC2- 11 Sonoma Hooker Canyon. 590 Comment
  UCD121675  Galium aparine Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 033 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  HSC19845  Galium aparine S. N. Wiemeyer 1962-4-20 23 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  JEPS52861  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3900 Sonoma 3.8 mi n Occidental Comment
  JEPS52890  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3906 Sonoma 6.8 mi ne Plantation (on road to Ward Creek) Comment
  HSC19826  Galium divaricatum Michener, Bioletti 1892-7-1 Sonoma Hood's Peak Comment
  UC963917  Galium divaricatum Milo S. Baker 1947-5-12 11768 Sonoma along horse trail from Gray Ranch (sw slope of mt.); Hood Mt. 441 Comment
  UCR255647  Galium murale Greg de Nevers 1993-3-30 10338 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  JEPS52967  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3903 Sonoma 4.8 mi n Cazadero (on King Mt. Road) Comment
  CHSC30057  Galium porrigens var. tenue Terrence Finn 1980-3-15 16 Sonoma Plant found just under Buzzard Rock. 85 Comment
  CAS-BOT-BC303499  Gamochaeta ustulata John Thomas Howell 1947-6-26 s.n. Sonoma Cunningham Marsh Comment
  UCD131642  Gamochaeta ustulata Frederica Bowcutt 1984-6-23 414 B Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1. Immediately N of Gerstle Cove near large parking lot. 15 Comment
  UCD148414  Gamochaeta ustulata Peter Rubtzoff 1959-6-6 4095 Sonoma Willow Creek Marsh. Comment
  UC55250  Garrya fremontii Milo S. Baker 1903-3-17 3 Sonoma Hood Mt. Comment
  CAS-BOT-BC278689  Gastridium phleoides Peter Rubtzoff 1962-9-30 5104 Sonoma Vacation Beach, 2 mi. below Guerneville Comment
  UCR248753  Gastridium ventricosum Peter Rubtzoff 1970-9-2 6366 Sonoma Russian River bottom at Mirabel Park 5 Comment
  UCD105714  Genista monspessulana Frederica Bowcutt; Kate Mawdsley 1996-3-24 2093 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 1/4 air miles SW of Red Mountain. Just E of Goodspeed Trailhead, along Adobe Canyon Road immed. N of road, just S of Sonoma Creek. 243 Comment
  UCSB31797  Genista monspessulana Townsend, J. 1977-5-29 Sonoma West side Russian River; about 1 mile south of Gurneyville Comment
  UCD23449  Gentiana affinis A. S. Crafts 1948-8-28 s.n. Sonoma Sonoma coast near Fort Ross. Comment
  UC17155  Geranium core-core J. Burtt Davy 1896-3-13 1650 Sonoma Duncan's Mills Comment
  RSA0028442  Geranium core-core Peter H. Raven, Richard Snow 1958-7-23 13689 Sonoma 2.6 miles north of Jenner. Comment
  UCD103320  Geranium dissectum Frederica Bowcutt 1994-5-21 1825 b Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. Along Meadow trail about 3/4 mile from trailhead. East from trail about 100 yards. 396 Comment
  UCR265127  Geranium purpureum Ann Howald 2015-4-1 3318 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 15.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 397 Comment
  UCR222354  Gilia achilleifolia subsp. achilleifolia George K. Helmkamp, E. A. Helmkamp 2010-6-4 16230 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
  JEPS46208  Gilia capitata subsp. capitata Eleanor Armstrong 1932-5-15 453 Sonoma near Camp Meeker; near Camp Meeker 106 Comment
  UC932032  Gilia capitata subsp. capitata Verne Grant, Alva Grant 1947-5-4 7960 Sonoma Rincon grade 4 mi nw Santa Rosa (on road to petrified forest); nw of Santa Rosa on road to petrified forest Comment
  CAS-BOT-BC225283  Gilia capitata subsp. chamissonis A. A. Heller; H. E. Brown 1902-5-27 5616 Sonoma Bodega Bay Comment
  CAS-BOT-BC225284  Gilia capitata subsp. chamissonis A. A. Heller; H. E. Brown 1902-5-27 5616 Sonoma Bodega Bay Comment
  JEPS69553  Gilia capitata subsp. chamissonis W. S. Cooper 1925-7-25 88 Sonoma Bodega Pt. Comment
  UCD117705  Gilia capitata subsp. chamissonis Eric S. Ngay 1990-5-18 7 Sonoma Bodega Head, first dune ridge west of harbor along road, east of marine lab dorms, Bodega Bay. Comment
  HSC100880  Gilia capitata subsp. pacifica Peter Warner, Sara Gordon 2011-6-16 219 Sonoma Jenner Headlands property, ~3 mi. NW of Jenner, lower Russian Gulch, near large rock outcrop, downslope from Muniz Ranch Rd., ~400 m N20 deg. E from Hwy. 1, Russian Gulch Bridge. 26 Comment
  CAS-BOT-BC226169  Gilia capitata subsp. tomentosa Verne Grant; Alva Grant 1948-7-7 8596 Sonoma 2.6 miles east of Bodega on Sebastopol - Bodega Bay road Comment
  CAS-BOT-BC227639  Glyceria Peter Rubtzoff 1966-5-7 5707 Sonoma North side of Hessel Road, just west of Hwy. 116. 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
  RSA786491  Glyceria declinata Peter Rubtzoff 1964-5-30 5325 Sonoma Santa Rosa Creek area about 1 mi E of the Laguna de Santa Rosa. Comment
  CAS-BOT-BC282725  Glyceria elata Peter Rubtzoff 1951-6-9 160 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  UCR282046  Glyceria leptostachya Peter Rubtzoff 1964-6-24 5382 Sonoma Coleman Marsh 269 Comment
  SJSU6044  Glyceria occidentalis C. W. Sharsmith 1972-6-24 7800 Sonoma Forestville Marsh c. 0.5 mi E of Forestville, NW of Sebastopol 42 Comment
  RSA136603  Glycyrrhiza lepidota Volney Rattan 1877-6-23 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC164700  Gnaphalium Peter Rubtzoff 1966-8-29 5815 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC173577  Gnaphalium Peter Rubtzoff 1969-11-2 6207 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC173582  Gnaphalium Peter Rubtzoff 1971-10-11 6720 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC176133  Gnaphalium palustre Peter Rubtzoff 1955-8-7 2038 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC302693  Gnaphalium palustre Peter Rubtzoff 1976-5-30 8567 Sonoma Kenwood Marsh. Comment
  JEPS87227  Gnaphalium palustre Jack and Betty Guggolz 1992-7-17 1330 Sonoma low area in a large cattle pasture Bloomfield Road 36 Comment
  UCR279629  Gnaphalium palustre Peter Rubtzoff 1962-10-23 5126 Sonoma Atascadero Creek Marsh 29 Comment
  CAS-BOT-BC176134  Gnaphalium palustre Peter Rubtzoff 1951-9-3 740 Sonoma Vacation Beach, near Guerneville. Comment
  UC429316  Goodyera oblongifolia Franklin P. Nutting Sonoma Taylor Creek; Western Middle California, Taylor Creek Comment
  CAS-BOT-BC305188  Grindelia hirsutula J. T. Howell 1930-7-13 5338 Sonoma Black Point road Comment
  JEPS41888  Grindelia hirsutula Eleanor Armstrong 1932-6-20 493 Sonoma 2 mi sw Santa Rosa; Bennett Valley 60 Comment
  UC762573  Grindelia hirsutula R. F. Hoover 5306 Sonoma Occidental Comment
  CAS-BOT-BC305168  Grindelia hirsutula J. T. Howell 1932-11-16 10816 Sonoma 6 mi. from Sonoma on road to Napa Comment
  CAS-BOT-BC305193  Grindelia hirsutula Mary P. Wells 1982-7-5 s.n. Sonoma Salmon Beach Parking Lot Comment
  CAS-BOT-BC305194  Grindelia hirsutula Milo S. Baker 1946-7-30 11542 Sonoma Eastern margin of Laguna. Upland. Along Occidental Rd. near bridge Comment
  POM290375  Grindelia hirsutula Lyman Benson 1930-6-18 2167 Sonoma S of Santa Rosa; Mt. Range: North Coast; River [drainage]: S.F. Bay. 61 Comment
  SEINET10724137 Image available Grindelia hirsutula John Thomas Howell 1930-6-8 Howell 5221 Sonoma 8 miles west of Petaluma. Clay soil. Comment
  SD39802  Grindelia stricta var. platyphylla Edith A. Purer 1932-7-21 4041 Sonoma Bodega Bay Comment
  CAS-BOT-BC371464  Habenaria Greg de Nevers 1989-9-10 9103 Sonoma Field redacted by CAS, contact the data manager for more information 400 Comment
  SEINET11689069  Hainardia cylindrica H. K. Wagnon 1989-1 1890 Sonoma adjacent to Fort Ross School's reservoir, Timber Cove 122 Comment
  UC565501  Hedypnois rhagadioloides H. L. Mason 1928-4-13 4333 Sonoma hills between Santa Rosa and Calistoga (Reili School) Comment
Read comments
Mar 30 2009
  UC1032155  Helenium bigelovii H. S. Yates 1936-5-16 5598 Sonoma 2 mi se Forestville (Pittsin Marsh <from dip>); Sebastopol Quadrangle Comment
  RSA93426  Helenium bigelovii Milo S. Baker 1939-5-19 9331 Sonoma Perry Marsh near Molino. Comment
  UCR30567  Helenium puberulum John C. Roos 1948-8-28 3957 Sonoma North Coast Ranges, Barrel Spring, Mill Creek, near Healdsburg 152 Comment
  CAS-BOT-BC262959  Helenium puberulum Peter Rubtzoff 1979-8-6 9303 Sonoma Knights Valley, off south side of Bavarian Lion Company ranch road (between it and a creek) 1.25 - 1.5 miles west of its junction with Franz Valley Road (0.4 miles south of Hwy. 128). Comment
  CAS-BOT-BC309587  Helenium puberulum A. A. Heller 1902-7-1 5795 Sonoma At Sebastopol Comment
  RSA94283  Helenium puberulum Peter Rubtzoff 1951-9-2 709 Sonoma Northern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  SEINET11841730  Helenium puberulum W. Knight, Knight, I. 1983-1 4717 Sonoma Sonoma Mountain Rd #2 at former Jack London property at Old Wake Robin Lodge site Comment
  UC754291  Helianthus bolanderi R. Bacigalupi 1948-3-6 2853 Sonoma The Geysers, just above the resort. Comment
  JEPS67991  Heliotropium curassavicum Milo S. Baker 1923-8-26 440 Sonoma Russian R. bed near Geyserville; Russian R. Comment
  UCD148377  Helminthotheca echioides Peter Rubtzoff 1955-9-24 2155 Sonoma Duncans Mills Marsh. Comment
  UC89015  Hemizonia congesta J. W. Congdon 1880-8-1 Sonoma Santa Rosa Road Comment
  RSA81625  Hemizonia congesta James I. McMurphy 1909-8-9 s.n. Sonoma 1 mile S of Sonoma. Comment
  RSA94096  Hemizonia congesta J. T. Howell 1945-8-14 21408 Sonoma Perry Marsh Comment
  SDSU4563  Hemizonia congesta D. F. Howe 1965-8-8 4101 Sonoma 8 miles east of Bodega Bay on #1. Comment
  UCSC000757  Hemizonia congesta subsp. clevelandii M. Alice King October 1896 s.n. Sonoma near Healdsburg Comment
  CAS-BOT-BC306157  Hemizonia congesta subsp. clevelandii James I. McMurphy 1917-9-15 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC306215  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10240 Sonoma Region of San Francisco Bay. 4 mi. northwest of Petaluma Comment
  JEPS54474  Hemizonia congesta subsp. congesta Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9315 Sonoma Pitkin Marsh 53 Comment
  UC193422  Hemizonia congesta subsp. congesta H. M. Hall 1916-6-23 10241 Sonoma twelve km n Petaluma Comment
  UC197506  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10240 Sonoma 4 mi nw Petaluma; San Francisco Bay Region Comment
  UC990604  Hemizonia congesta subsp. congesta James I. McMurphy 1909-8-9 Sonoma 1 mi s Sonoma Comment
  UCR80298  Hemizonia congesta subsp. congesta L. S. Rose 1935-9-11 35622 Sonoma North Coast Ranges, 2 mi north of Healdsburg 40 Comment
  CAS-BOT-BC306216  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10241 b Sonoma Near Petaluma (6 mi. n.w.) Comment
  CDA6572  Hemizonia congesta subsp. congesta T. C. Fuller 1966-6-2 14853 Sonoma Road to Petaluma, 1 mile east of Valley Ford. 0 Comment
  UC193421  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10241 Sonoma 6 mi nw Petaluma Comment
  UCD132984  Hemizonia congesta subsp. congesta Jack Guggolz; Betty Guggolz 1990-5-18 1051 Sonoma one-half mile south of Two Rock Ranch Military Reservation; on Dutra Ranch. 1/4 mile east and west of Dutra home. Comment
  UC1392842  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-8-31 11567 Sonoma near Petaluma; Adobe Road and Casa Grande Road Comment
  CAS-BOT-BC309695  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-10 717 Sonoma About a mi. W of Santa Rosa on road to Fulton Comment
  CAS-BOT-BC309696  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-10 717 -E Sonoma About a mi. W. of Santa Rosa on road to Fulton Comment
  JEPS116516  Hemizonia congesta subsp. lutescens Peter Warner 2009-6-3 102 Sonoma Poff Ranch, Wright Hill Road off State Hwy 1, in grassland 25 m S of main (west) gate 250 Comment
  RSA795176  Hemizonia congesta subsp. luzulifolia Ann Howald 2011-8-28 2805 Sonoma West slope of Mayacamas Mountains, end of Los Alamos Rd., 4.6 miles east of intersection Hwy 12, parking area next to Hood Mountain Regional Park 427 Comment
  CAS-BOT-BC309959  Hemizonia congesta subsp. luzulifolia Walter Knight; Irja Knight 1963-9-15 301 Sonoma Unspecified Comment
  UCD132141  Hemizonia congesta subsp. luzulifolia 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, 1.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek, W of Bear Creek along Goodspeed Trail just as the vegetation shifts from mixed evergreen forest to serpentine chaparral. 536 Comment
  POM181139  Hemizonia lutescens J. T. Howell 1930-7-27 5409 Sonoma 8 miles south of Fort Ross Comment
  RSA159435  Hemizonia lutescens James I. McMurphy 1909-8-8 701 -A Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  RSA169313  Hemizonia lutescens L. S. Rose 1964-8-26 64067 Sonoma 5 miles NE of Penngrove. 244 Comment
  SEINET11842304  Hemizonia lutescens W. Knight, Knight, I.; Knight, T. 1984-1 5038 Sonoma Royal Oaks Mobilehome Park, North McDowell Blvd, Petaluma Comment
  UCSB16906  Hemizonia multicaulis Dennis E. Breedlove 1961-12-31 1437 Sonoma collected 2.3 mi S, along State Highway 1 Russian River - , and State Highway 1 30 Comment
  RSA81596  Hemizonia multicaulis subsp. vernalis James I. McMurphy 1910-6-8 s.n. Sonoma Where road enters hills E of Petaluma. Comment
  UC1212389  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-23 4166 Sonoma 12.2 mi w Skaggs Springs (Stewarts Point road); Inner North Coast Ranges 579 Comment
  POM141325  Heteromeles arbutifolia A. A. Heller 1902-7-8 5815 Sonoma Between Healdsburg and Geyserville Comment
  CAS-BOT-BC310984  Heterotheca grandiflora Freed Hoffman 1943-12-1 s.n. Sonoma Northwood, Russian River near Guerneville Comment
  CDA7880  Heterotheca oregona var. rudis T. R. Haig 1959-11-4 Sonoma 5 miles north of Cloverdale. 0 Comment
  POM180783  Heterotheca sessiliflora subsp. echioides J. T. Howell 1930-7-13 5342 Sonoma Black Point Road Comment
  CAS-BOT-BC420940  Heuchera micrantha var. diversifolia A. A. Heller 1902-6-24 5756 Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC420942  Heuchera micrantha var. diversifolia D. E. Breedlove 1980-6-27 44763 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC420941  Heuchera micrantha var. diversifolia Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Rd. 9 miles east of Stewarts POint Comment
  UCD102629  Heuchera pilosissima Mary M. Hektner 1975-6-3 205 Sonoma Unit 35-A Owner's Map, Sea Ranch, near State Highway 1. Comment
  SEINET12221839  Heuchera pilosissima F. H. Utech 1988-5-21 88 -221 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point 75 Comment
  UCD133165  Hieracium albiflorum J. M. Tucker 1951-6-26 2134 Sonoma near summit of range, on raod from Glen Ellen to Oakville. Comment
  POM252698  Hoita macrostachya Michener, Bioletti 1893-7-31 2504 Sonoma Adobe Canyon Comment
  UCD164989  Hoita macrostachya Peter Rubtzoff; Nancy Harrison 1974-8-31 7857 Sonoma Pressley Road, 0.25 miles south of junction with Sonoma Mountain Road (2.7 miles north of Lichau Road junction). Comment
  CDA27097  Hoita orbicularis D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  NY11969  Hoita villosa A. A. Heller 1902-6-24 5761 Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC280785  Holcus lanatus John Thomas Howell; Walter Knight; Irja Knight 1987-6-4 6230 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC280786  Holcus lanatus G. DeNevers 1981-5-30 1364 Sonoma Pepperwood Ranch. Shore of Pippindale Pond Comment
  UCD84844  Holcus lanatus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3571 a Sonoma 9.1 miles northwest of Santa Rosa, open roadside, north facing slope. Comment
  UCD84981  Holcus lanatus H. S. Yates 1937-5-30 6538 Sonoma 1.5 miles NNE of Graton. 30 Comment
  CAS-BOT-BC280790  Holcus lanatus A. A. Heller 1902-6-7 5651 Sonoma Near Santa Rosa Comment
  UCD148461  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
  POM139965  Holodiscus discolor M. S. Baker 1898-06 607 Sonoma Near Sebastopol. Comment
  UCD151133  Holodiscus discolor James A. Neilson Jr. 1973-6-6 3115 Sonoma Mayacmas Mountains. The Geysers. Site III. [Elevation and coordinates estimated by label maker.] 731 Comment
  JEPS128298  Holodiscus dumosus var. cedrorum Roger Raiche 2010-6-16 022 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET257719 Image available Hordeum brachyantherum M. Barkworth, D. Amme 1989-6-15 5174 Sonoma South end of Bodega Head on restored grassland. 81 Comment
  CAS-BOT-BC289283  Hordeum brachyantherum subsp. brachyantherum Walter Knight; Irja Knight; J. T. Howell 1987-5-22 6271 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC289284  Hordeum brachyantherum subsp. brachyantherum Peter Rubtzoff 1957-5-11 3344 Sonoma Occidental Mash Comment
  UC1587967  Hordeum brachyantherum subsp. brachyantherum M. Barkworth, D. Amme 1989-6-15 5173 Sonoma s end Bodega Head; s end Bodega Head Comment
  CAS-BOT-BC289541  Hordeum brachyantherum subsp. californicum John H. Thomas 1976-6-16 18346 Sonoma Southern part of Sea Ranch northwestern part of county about 7 iles south of Gualala 30 Comment
  RSA144393  Hordeum brachyantherum subsp. californicum Roxana S. Ferris, Laura Lorraine 1961-6-14 13545 Sonoma Junction of Occidental Road with Facendini Lane Comment
  UCD85528  Hordeum brachyantherum subsp. californicum Beecher Crampton 1959-6-16 5385 Sonoma 1 mile E of Occidental. Comment
  SEINET11690145  Hordeum marinum subsp. gussoneanum J. T. Howell, Knight, W.; Knight, I. 20 May 198? 6234 Sonoma Todd Road Preserve, corner Todd & Llamo Rds 24 Comment
  SEINET4670524  Hordeum murinum subsp. leporinum R. Halse 1987-2-22 3375 Sonoma Along State HWY 121, 0.4 miles east of its junction with State HWY 116 at Big Bend in the Sonoma Valley. 6 Comment
  UCD85931  Hordeum murinum subsp. leporinum A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3557 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  CAS-BOT-BC280866  Hordeum murinum subsp. leporinum Richard R. Halse 1987-2-22 3375 Sonoma Along State Hwy. 121, .4 miles east of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley 6 Comment
  UC903144  Horkelia californica Ethel Crum 1930-7-27 818 Sonoma n Fort Ross; North Coast Ranges Comment
  CDA18032  Horkelia californica subsp. dissita R. Gross 1999-7-8 s.n. Sonoma Mt. St. Helena spring, on north side of Mtn. 0 Comment
  JEPS97512  Horkelia tenuiloba Dean Schlichting 2000-5-31 Sonoma 1/2 mi E of Annapolis Comment
  UC75491  Horkelia tenuiloba Milo S. Baker May 1899 Sonoma near the Laguna (Forestville Rd); Forestville Comment
  UCD113462  Horkelia tenuiloba G. F. Hrusa 1989-6-4 7187 Sonoma Headwaters of Agua Caliente Creek. NW exposure, just below summit. Comment
  CAS-BOT-BC206158  Hosackia crassifolia Crawford Cooley 1992-5-7 s.n. Sonoma Near the Sonoma - Mendocino line ca. 8 airmiles west of Cloverdale on the Cooley Ranch Comment
  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
  JEPS117115  Humulus lupulus Peter Warner 2010-7-29 172 Sonoma State Hwy. 116, at 21.31 mark, ~ 2.53 km, E 143 deg. S of Forestville, in marshy area along W side of highway. Comment
  CDA31270  Hypericum concinnum D. G. Kelch, Ed Biffin 2010-5-3 10 .191 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC1299211  Hypericum concinnum Freed W. Hoffman 1947-5-30 525 Sonoma Layton Mine North Coast Ranges, Austin Creek, Layton Mine Comment
  UC19034  Hypericum concinnum H. N. Bolander 1864-1 3948 Sonoma at the Geysers Comment
  CAS-BOT-BC401325  Hypericum scouleri Volney Rattan 1877-6-26 s.n. Sonoma Geysers Comment
  UCD133333  Hypochaeris glabra Mary M. Hektner 1976-5-10 254 Sonoma above beach near the Sea Ranch Association Office; Unit 36 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD159436  Hypochaeris radicata D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 194 Sonoma Abandoned volleyball court/field. Disturbed. 8 Comment
  JEPS76919  Iris douglasiana Robert M. Lloyd 1963-2-24 2059 Sonoma 4 mi s State Highway 12 (on State Highway 1) 15 Comment
  SEINET10529075  Iris douglasiana R. D. Sage 1992-1-11 Sage 13410 Sonoma Collected along graton rd, 1-2 km e-ne from occidental. Comment
  SEINET10899984  Iris douglasiana R. D. Sage 1992-1-10 Sage 13411 -2 Sonoma Collected along joy rd between bodega hwy and bittner rd, ca 2-6 km sw of occidental. Comment
  UCD160311  Iris fernaldii James A. Neilson Jr. 1975-5-23 3211 Sonoma Truit Creek at Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  RSA135813  Iris fernaldii E. K. Balls 1957-5-27 22619 Sonoma Mt. St. Helena, 4.2 miles south of Lake-Somona County line 732 Comment
  RSA137360  Iris fernaldii Lee W. Lenz, E. K. Balls 1951-5-3 16401 Sonoma About 1 mile east from Petrified Forest on road to Calistoga 610 Comment
  CAS-BOT-BC176124  Isoetes Peter Rubtzoff 1971-9-1 6670 Sonoma Spring Creek Reservoir area. Comment
  RSA784489  Isoetes Peter Rubtzoff 1969-5-24 6053 Sonoma 6.5 miles SE of Penngrove, on Lichan Road. 427 Comment
  UC1618153  Isoetes howellii J. C. Game 1996-5-25 96 /41 Sonoma ca 15 mi nw of Warm Springs Dam (along Rockpile Rd, in Rockpile Ranch) Comment
  CAS-BOT-BC368087  Isoetes howellii Greg de Nevers 1998-3-20 11220 Sonoma Cresta Ranch, Mark West Creek Comment
  SEINET10794085  Isoetes howellii Wayne Roderick Roderick s.n. Sonoma In a vernal pool, in the Sonoma Mountains east of Cotati, on the Rivers Ranch. 305 Comment
  CAS-BOT-BC61918  Isoetes nuttallii John Thomas Howell 1947-6-26 23301 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC61926  Isoetes nuttallii Peter Rubtzoff 1951-6-7 138 Sonoma Western branch of the Upper Marsh Comment
  UCD150851  Isoetes nuttallii Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  CAS-BOT-BC164647  Juncus Peter Rubtzoff 1964-7-29 5457 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC322122  Juncus arcticus Peter Rubtzoff 1955-7-24 1989 Sonoma Forestville Marsh. Comment
  UCD141323  Juncus balticus subsp. ater Frederica Bowcutt 1997-7-18 2182 b Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge west of Bear Creek. 365 Comment
  CDA18031  Juncus bolanderi R. Gross 1999-7-8 s.n. Sonoma Mt. St. Helena Spring. NW side. 0 Comment
  UCD141372  Juncus bufonius Jennifer Bury; Peggy Herzog 1993-5-8 251 b Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 371 Comment
  SEINET6333666  Juncus bufonius A. A. Heller 1902-6-11 5688 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  UCD141394  Juncus bufonius Gerry North 1993-4 14 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. At first pullout on right after Goodspeed trailhead. Less than 0.2 mile east of park entrance gate. 228 Comment
  CAS-BOT-BC173534  Juncus dubius Peter Rubtzoff 1972-6-27 6792 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC157999  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5903 Sonoma Lichan Marsh Comment
  CDA42414  Juncus effusus subsp. pacificus D. G. Kelch 2012-5-2 12 .068 Sonoma Dry Creek Valley; near Preston Organic Winery along tributary of Dry Creek. Comment
  UCD166334  Juncus laccatus Peter Rubtzoff 1968-7-13 5919 Sonoma upper Salmon Creek Marsh. Comment
  POM111129  Juncus lescurii Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  UC1146699  Juncus occidentalis Freed W. Hoffman 1941-5-18 2180 Sonoma Franz Valley North Coast Ranges Comment
  UCD165134  Juncus occidentalis Peter Rubtzoff 1974-5-18 7413 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCR130525  Juncus patens Don Pendleton 1993-5-29 s.n. Sonoma North Coast Ranges, 5297 Westside Rd, Russian River Valley, c. 5 mi SW of Healdsburg 46 Comment
  CAS-BOT-BC250926  Juncus phaeocephalus J. Penalosa 1961-5-24 1588 Sonoma Upper Stemple Creek Marsh Comment
  UCD164186  Juncus phaeocephalus Peter Rubtzoff; Nancy Harrison 1978-6-11 9204 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  JEPS67071  Juncus phaeocephalus var. paniculatus W. L. Jepson 1918-6-23 7647 Sonoma Asti Comment
  RSA94015  Juncus phaeocephalus var. phaeocephalus Peter Rubtzoff 1951-7-21 509 Sonoma Pitkin Marsh, near Forestville; Between the Upper and the Lower marshes. Comment
  UCD142923  Juncus tenuis R. Tofsrud 1947-5-4 s.n. Sonoma Parker Hill near Santa Rosa. Comment
  CAS-BOT-BC173519  Juncus xiphioides Peter Rubtzoff; Nancy Harrison 1974-9-7 7871 Sonoma Hinebaugh Creek in Rohnert Park. Creek bed, west of Commerce Blvd. crossing Comment
  UCD161842  Juncus xiphioides James A. Neilson Jr. 1974-7-10 2816 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock. (Exact location unknown. Coordinates and elevation estimated by label maker.) 1027 Comment
  CAS-BOT-BC540802  Kickxia Peter Rubtzoff 1987-9-27 9856 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  UCD85860  Koeleria macrantha P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa, Calistoga - Petrified Forest Road. Comment
  CAS-BOT-BC273790  Koeleria pyramidata Peter Rubtzoff 1952-6-1 1136 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  CAS-BOT-BC273791  Koeleria pyramidata Peter Rubtzoff 1952-6-11 1250 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC273792  Koeleria pyramidata A. A. Heller 1902-4-23 5352 Sonoma Near Sonoma Comment
  CAS-BOT-BC340483  Lactuca saligna Leonore Bravo 1982-9-12 s.n. Sonoma Guerneville (on road to Armstrong Grove) Comment
  CAS-BOT-BC340484  Lactuca saligna John Thomas Howell 1957-10-12 33001 Sonoma About 1 mi. sw. of Sonoma Comment
  RSA783730  Lagophylla ramosissima Peter Rubtzoff 1975-8-26 8359 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC274315  Lagurus ovatus David D. Keck 1948-6-29 5927 Sonoma Fort Ross, at the chapel 30 Comment
  CAS-BOT-BC274316  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Steward Point Comment
  CAS-BOT-BC272433  Lamarckia aurea Greg de Nevers; Frank Almeda 1987-4-11 8146 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  UCD151185  Lamarckia aurea James A. Neilson Jr. 1974-4-17 2983 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  CAS-BOT-BC164406  Lamiaceae Peter Rubtzoff 1954-8-4 1648 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC486690  Lamiaceae Peter Rubtzoff 1966-8-18 5784 Sonoma Laguna de Santa Rosa ca 1 mile ESE of Sebastopol Comment
  CAS-BOT-BC486691  Lamiaceae Peter Rubtzoff 1974-5-25 7452 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC346328  Lasthenia californica A. A. Heller; H. E. Brown 1902-4-15 s.n. Sonoma Santa Rosa Creek Comment
  CAS-BOT-BC385627  Lasthenia californica A. A. Heller; H. E. Brown 1902-4-11 5270 Sonoma Bodega Bay Comment
  RSA585970  Lasthenia californica Adree M. Desrochers 1988-4-30 335 Sonoma Salt Point State Park, Stump Beach. Comment
  RSA59636  Lasthenia californica Verne Grant, Alva Grant 1950-4-24 8875 Sonoma Summit of road between Santa Rosa and Calistoga in Hood Mt. Range. Comment
  JEPS19389  Lasthenia californica subsp. californica G. Thomas Robbins 1938-4-15 225 Sonoma 2.5 mi e Bodega Bay Comment
  SEINET11447679 Image available Lasthenia californica subsp. macrantha K. Brandegee 1905-6-27 s.n. Sonoma Near Bodega Bay Comment
  UC517469  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  UC135327  Lasthenia minor Katharine Brandegee 1905-6-1 Sonoma Bodega Comment
  UCR255451  Lathyrus palustris Ann Howald 2014-5-16 3004 Sonoma North Coast, lowest coastal terrace, c. 1.5 mi southeast of Del Mar Point 21 Comment
  NY15643  Lathyrus venosus var. californicus J. Torrey 1865-1 Sonoma Sonoma Valley Comment
  UCD167636  Lathyrus vestitus James A. Neilson Jr. 1977-3-7 3845 Sonoma Mayacmas Mountains. Hwy 29, 2 miles south from summit at R. L. Stevenson State Park. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA12254  Lathyrus vestitus subsp. bolanderi Carl B. Wolf 1934-6-29 5799 Sonoma 6/10 of a mile inland from Stewarts Point. 61 Comment
  UCD106547  Lathyrus vestitus var. ochropetalus Patti Togioka; Rimy Waraich, and Erik Beever 1993-5-8 233 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 365 Comment
  UCSB22473  Lathyrus vestitus var. ochropetalus McCarthy, Sharon 1965-4-16 Sonoma North of junction of 5th Street West and Verano Avenue, Sonoma 60 Comment
  UC1299221  Lathyrus vestitus var. vestitus Freed W. Hoffman 1947-2-28 609 Sonoma road to Wild Hog Ridge, headwaters of Palmer Creek, a tributary of Mill Creek North Coast Ranges, Mill Creek, Palmer Creek Comment
  UCD166126  Layia Peter Rubtzoff 1969-5-3 6010 Sonoma Laguna de Santa Rosa ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC323230  Layia chrysanthemoides David D. Keck 1931-4-1 992 Sonoma 2 miles N of Sears Point (9 miles S of Sonoma), southern Sonoma County. 10 Comment
  CAS-BOT-BC323232  Layia chrysanthemoides David D. Keck 1933-5-28 2320 Sonoma 3.4 miles E of Shellville (just E of intersection of Sonoma road). Comment
  CAS-BOT-BC323231  Layia chrysanthemoides David D. Keck 1933-5-28 2319 Sonoma 2 miles N of Sears Point Comment
  CAS-BOT-BC323255  Layia chrysanthemoides H. N. Bolander 1864-4-18 3902 Sonoma Santa Rosa Valley. [noted on sheet: in meadow at Mark West, Sonoma County] Comment
  CAS-BOT-BC323256  Layia chrysanthemoides Marian L. Campbell 1921-4-15 s.n. Sonoma Sonora Comment
  RSA785922  Layia chrysanthemoides Peter Rubtzoff 1966-5-29 5730 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC313745  Layia chrysanthemoides subsp. maritima J. Clausen 1935-5-24 1090 Sonoma 6.2 miles S of Jenner Comment
  SEINET7545196  Layia chrysanthemoides subsp. maritima J. Clausen 1935-1 1090 Sonoma 6.2 miles S of Jenner, coastal bluffs at a little bay Comment
  UC584208  Layia gaillardioides David D. Keck 1935-6-15 3379 Sonoma Russian River Comment
  CAS-BOT-BC379619  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  CAS-BOT-BC379623  Layia platyglossa J. Clausen 1935-5-24 1094 Sonoma 6.5 miles south of Jenner Comment
  CAS-BOT-BC379624  Layia platyglossa Alice Eastwood 1915-6-29 4836 Sonoma Bodega Point Comment
  JEPS82234  Layia platyglossa Roger Raiche 1983-7-5 30486 Sonoma Horseshoe Pt Comment
  UC57867  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  CAS-BOT-BC184129  Leersia Peter Rubtzoff 1965-10-17 5660 Sonoma Forest Hills (5.5 miles E of Guerneville) Comment
  RSA0034026  Leersia Peter Rubtzoff 1987-9-27 9851 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  UCR254923  Leersia oryzoides Greg de Nevers 1995-10-1 10775 Sonoma Russian River near Mirabel Road 5 Comment
  UCR279862  Leersia oryzoides Peter Rubtzoff 1969-8-27 6163 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  RSA785666  Lemna Peter Rubtzoff 1965-10-10 5653 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC527278  Lemna minuta Peter Rubtzoff 1951-8-19 652 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  UCR255071  Lemna perpusilla Peter Rubtzoff 1961-8-24 4709 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River 3 Comment
  RSA0025207  Lemna perpusilla Peter Rubtzoff 1961-8-24 4709 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  RSA0060106  Lepechinia calycina Greg de Nevers 1996-7-17 10857 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Oak Hill Ranch. 91 Comment
  SJSU8213  Lepidium latifolium W. Savage 1976-7-9 1083 Sonoma marsh between Northwestern R.R. tracks & former channel of Petaluma R, Schultz Slough 1 Comment
  UCD115703  Lepidium latifolium Walter Knight 1963-8-9 s.n. Sonoma Petaluma city limits sign on highway to Lakeville. Comment
  CAS-BOT-BC12972  Lepidium strictum Catherine Best 1987-3-28 1237 Sonoma Bodega Head. Comment
  CAS-BOT-BC12973  Lepidium strictum Catherine Best 1990-3-24 1361 Sonoma Northwest of Santa Rosa near Piner and Fulton. Comment
  CAS-BOT-BC274000  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point 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
  CHSC40733  Leptosiphon ciliatus H. N. Bolander 1866-1-1 Sonoma Russian River Valley. Comment
  JEPS117109  Leptosiphon parviflorus Peter Warner 2010-5-12 148 Sonoma Jenner Headlands, in saddle meadow along Willig Extension Drive (main dirt road on property), 2.06 km past barn; E side of road, S edge of grassland along forest ecotone; on divide between upper SE Russian Gulch and NW Jenner Gulch watersheds Comment
  JEPS126517  Lessingia arachnoidea Staci Markos, Jack and Betty Guggolz and Gene Cooley 2003-8-11 221 Sonoma North of Camp Meeker near the Bohemian Highway, Bohemian Ranch, Staging Area. Comment
  JEPS116507  Leymus californicus Peter Warner 2009-6-3 104 Sonoma Poff Ranch, along N unfenced boundary, adjacent to or on Willow Creek (Calif. State Parks Property), upper east Pomo Canyon, along logging road 130 Comment
  CAS-BOT-BC251169  Leymus triticoides Peter Rubtzoff 1956-9-22 2941 Sonoma Vacation Beach, near Guerneville. Comment
  UCD166467  Leymus triticoides Peter Rubtzoff 1956-9-22 2941 Sonoma Vacation Beach, near Guerneville. Comment
  UCD127541  Ligusticum apiifolium P. G. Connors 1991-7-5 196 Sonoma Bodega Marine Laboratory, Bodega Head and Dunes. Comment
  CAS-BOT-BC451700  Lilaea scilloides Alice Eastwood 1921-4-24 10362 Sonoma Santa Rosa Comment
  CAS-BOT-BC451701  Lilaea scilloides David Morgan 1961-5-9 s.n. Sonoma Along Redwood Highway 4 1/2 mi. s. of Mendocino Co. line Comment
  CAS-BOT-BC451702  Lilaea scilloides Lewis S. Rose 1962-4-11 62019 Sonoma Laguna de Santa Rosa, 1/2 mi. e of Cunningham 15 Comment
  RSA155423  Lilaea scilloides L. S. Rose 1962-4-11 62019 Sonoma Laguna de Santa Rosa, half mile east of Cunningham. 15 Comment
  CAS-BOT-BC130829  Lilium pardalinum Peter Rubtzoff 1951-7-21 498 Sonoma Northern half of Lower Marsh Comment
  UCD139747  Lilium pardalinum Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-27 78 A Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS77876  Limnanthes douglasii Robert M. Lloyd 1965-5-8 3639 Sonoma Llano Road e Cunningham (se of Sebastopol, about 4 mi n of Route 116, upper portion of Marsh); Laguna de Santa Rosa Marsh Comment
  RSA215898  Limnanthes douglasii Peter Rubtzoff 1955-5-21 1875 Sonoma Ross Marsh. Comment
  UC17900  Limnanthes douglasii subsp. douglasii W. H. Brewer 1862-4-18 972 Sonoma near Sonoma Comment
  RSA79068  Limnanthes douglasii subsp. douglasii E. K. Balls, Lee W. Lenz 1952-5-8 17115 Sonoma 0.1 mi. from Kellogg, jct. of road from Mark West Springs with Hwy. 29. 61 Comment
  CDA12906  Limnanthes douglasii subsp. nivea G. F. Hrusa, R. Gross, A. Buckmann 1996-3-29 12740 Sonoma North Coast Biodiversity Arena; Napa Valley bottom, immediately S of Tubbs Lane, approx. 2 m. NW of Calistoga. Comment
  RSA74463  Limnanthes douglasii subsp. rosea Milo S. Baker 1947-6-26 11835 Sonoma Cunningham Marsh, ca 1 mile SW of Cunningham Sta. (air line) Comment
  CAS-BOT-BC45944  Limnanthes vinculans Peter Rubtzoff 1962-5-25 4830 Sonoma Laguna de Santa Rosa north of Sebastopol, nr. Occidental Rd. crossing. Comment
  UC1368724  Limnanthes vinculans Peter Rubtzoff 1969-5-3 6026 Sonoma e Sebastopol; Laguna de Santa Rosa Comment
  RSA800890  Limosella acaulis Peter Rubtzoff 1964-8-20 5469 Sonoma Near pond 1 mile SE of Jenner (near jct of Hwy 1 and Hwy 12) Comment
  UC106679  Linanthus androsaceus Katharine Brandegee Jun 1905 Sonoma Bodega Heak Bodega Head Comment
  UC496363  Linanthus androsaceus Merle Randall 1930-6-2 Sonoma near Cazadero (Christopher Ranch) Comment
  UC52794  Linanthus androsaceus Milo S. Baker 1898-4-5 Sonoma near Gualala River Comment
  SEINET7067243  Linum bienne A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1 and east of Ocean Cove. Coordinate datum: NAD27. Comment
  CAS-BOT-BC430800  Lithophragma affine Alice Eastwood 1921-4-24 10374 Sonoma Santa Rosa Comment
  CAS-BOT-BC430585  Lithophragma affine G. DeNevers 1981-4-11 697 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC430586  Lithophragma affine G. DeNevers 1981-4-11 700 Sonoma Pepperwood Ranch, along road below Lower Orchard Comment
  SEINET12216914  Lithophragma heterophyllum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -204 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 440 Comment
  UCD102729  Lithophragma heterophyllum S. P. Lynch 1974-3-14 392 Sonoma 6 mi. W of Callistoga on 128. Comment
  CAS-BOT-BC342501  Logfia gallica Peter Rubtzoff 1952-6-3 1168 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC342495  Logfia gallica F. Almeda; G. DeNevers 1981-4-28 4915 Sonoma Pepperwood Ranch. Vicinity of the Bechtel cabin Comment
  CAS-BOT-BC342496  Logfia gallica G. DeNevers 1981-5-14 1145 Sonoma Pepperwood Ranch. On the trail across Hansel's driveway Comment
  CAS-BOT-BC342500  Logfia gallica H. L. Mason 1934-4-28 8078 Sonoma Jensen's Ranch, head of Dohrmann Creek Comment
  CAS-BOT-BC342502  Logfia gallica D. E. Breedlove 1980-6-28 44810 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC283286  Lolium multiflorum Peter Rubtzoff 1951-7-21 488 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh, near the highway Comment
  CAS-BOT-BC283290  Lolium multiflorum Peter Rubtzoff 1951-7-21 481 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh, near the highway Comment
  CAS-BOT-BC283285  Lolium multiflorum John H. Thomas 1976-6-16 18344 Sonoma S part of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  SEINET11690153  Lolium multiflorum W. Knight, Knight, I.; Howell, J. T. 1987-1 6279 Sonoma Todd Road Preserve 24 Comment
  SEINET7042400  Lolium multiflorum A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  JEPS81825  Lomatium californicum Edward Lee with W. A. Setchell 1936-6-8 2208 Sonoma Belvedere, Bohemian Grove Comment
  POM133383  Lomatium californicum A. A. Heller, H. E. Brown 1902-3-28 s.n. Sonoma Hills at Santa Rosa Comment
  POM266014  Lomatium caruifolium Lincoln Constance, Reed Rollins 1942-5-10 2862 Sonoma Sonoma County: 4 miles N of Geyserville. 61 Comment
  UCR45090  Lomatium dasycarpum L. F. LaPre 1986-3-30 s.n. Sonoma Socrates Mine, c. 9 mi. ENE of Geyserville 976 Comment
  UC875120  Lomatium dasycarpum subsp. dasycarpum Lewis S. Rose 1941-5-22 31247 Sonoma 4 mi. e. Santa Rosa (Rincon Ridge); Rincon Ridge 121 Comment
  CAS-BOT-BC217806  Lomatium repostum G. L. Stebbins 1966-5-1 6390 Sonoma Rincon Ridge north of Santa Rosa Comment
  CAS-BOT-BC361371  Lomatium repostum Greg de Nevers 1997-3-20 10920 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill 400 Comment
  UCD73920  Lomatium repostum G. Ledyard Stebbins 1966-5-1 6390 Sonoma Rincon Ridge, Chanate Road, 1/4 mile west of Montecito. Comment
  UC1076677  Lomatium utriculatum C. Ritchie Bell 1952-3-19 1247 Sonoma top of Larksur Rock Bodega; , Larkspur Rock Comment
  UC21208  Lomatium utriculatum F. T. Bioletti 1893-6-10 Sonoma Hood's Peak Comment
  UCR265238  Lomatium utriculatum Ann Howald 2015-4-28 3379 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 16.5 miles west of intersection with Rockpile Rd, Wolf Creek drainage 318 Comment
  POM132577  Lomatium vaginatum A. A. Heller, H. E. Brown 1902-4-2 5198 Sonoma Hills northeast of Santa Rosa Comment
  CAS-BOT-BC540801  Lonicera Peter Rubtzoff 1962-4-11 4787 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  UCD35660  Lonicera hispidula Beecher Crampton 1959-6-16 5397 Sonoma 1 mile northeast of Freestone. Comment
  CAS-BOT-BC540833  Lonicera involucrata var. ledebourii Peter Rubtzoff 1958-5-17 3681 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Rd.) Comment
  CAS-BOT-BC540824  Lotus Peter Rubtzoff 1974-9-7 7887 Sonoma Hinebaugh Creek in Rohnert Park., creek bed west of Commrece Blvd. crossing. Comment
  JEPS79074  Lotus aboriginus L. R. Heckard with S. Rae and Betty Lovell 1980-4-21 5175 Sonoma 1.5 mi due e Forestville (about 0.5 mi e of Vine Hill road, Vine Hill School road) 60 Comment
  UC717965  Lotus angustissimus David D. Keck 1944-7-11 5515 Sonoma 1 mi s bridge across mouth of Russian River (0.5 mi from Pacific Ocean); Russian River 22 Comment
  UCR142041  Lotus angustissimus Beecher Crampton 1955-6-17 2967 Sonoma North Coast, Fort Ross; bank of roadcut, State Highway 1 61 Comment
  UCD106736  Lotus corniculatus Terri Williamson 1990-5-20 52 Sonoma Bayflat Rd. Bodega Bay. 3 Comment
  RSA710821  Lotus formosissimus G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast: Salt Point State Park. 30 Comment
  UCR105443  Lotus formosissimus Peter Rubtzoff 1958-5-10 3632 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road 30 Comment
  SEINET12165193  Lotus humistratus F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -182 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  SEINET7042389  Lotus micranthus A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  SD62044  Lotus pedunculatus Darley F. Howe 1965-8-3 4102 Sonoma 8 miles east of Bodega Bay on Hwy 1 Comment
  SEINET8721506 Image available Lotus purshianus Unknown s d 38255 Sonoma Bloomfield 30 Comment
  CHSC20629  Lotus uliginosus Robert A. Schlising; G. Keator 1963-7-27 2632 Sonoma California Coastal Range. On east side of Bodega Peninsula. Comment
  RSA31789  Lotus wrangelianus A. A. Heller 1938-5-14 15079 Sonoma Bluff north of Bodega Bay. Comment
  UCD66023  Ludwigia hexapetala B. J. Grewell 2006-8-24 06- 50 -LU Sonoma Russian River at Sunset Beach, downstream of vacation home area. 12 Comment
  CAS-BOT-BC251209  Ludwigia palustris Peter Rubtzoff 1972-6-27 6793 Sonoma Atascadero Creek Marsh. Comment
  UCD148388  Ludwigia peploides Peter Rubtzoff 1956-9-11 2844 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCR280184  Ludwigia peploides Peter Rubtzoff 1958-7-20 3782 Sonoma Laguna de Santa Rosa NE of Graton (near Guerneville Road) 30 Comment
  CAS-BOT-BC164350  Ludwigia peploides Peter Rubtzoff 1964-6-20 s.n. Sonoma Laguna de Santa Rosa, southeast of Sebastopol (near Cooper Road) Comment
  UCD115931  Lunaria annua Frederica Bowcutt 1994-5-1 1797 Sonoma Sugar Loaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. 213 Comment
  CAS-BOT-BC201289  Lupinus Milo S. Baker 1948-7-3 12059 Sonoma Millstation Rd near Post Box 39 Rt 1, .4 mi West of Gravestein [Gravenstein] Hiwy and 1.4 mi from Catholic Church on the Main St of Sebastopol Comment
  RSA735208  Lupinus Keith E. Hoffmaster 1946-3-9 1092 Sonoma near Bodega. Comment
  SEINET10488351  Lupinus affinis Joseph W. Congdon 1880-5-22 Congdon s.n. Sonoma Santa rosa road Comment
  SEINET10488426  Lupinus albifrons Melvin L. Conrad, David B. Dunn; Katherine L. Morris 1973-6-8 Conrad 7077 Sonoma Roadside along hwy 1, 3.4 miles n of jenner 91 Comment
  CDA27360  Lupinus albifrons G. D. Barbe, T. C. Fuller 1985-3-28 4200 Sonoma 6560 Sonoma Mountain Road, south of Santa Rosa. Comment
  CAS-BOT-BC195973  Lupinus albifrons var. albifrons Milo S. Baker 1934-1-1 9481 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC195974  Lupinus albifrons var. albifrons Alice Eastwood 1893-4-27 s.n. Sonoma Hood Mt. Comment
  UCD106595  Lupinus arboreus Chris Bowen 1976-5-18 120 Sonoma Unit 7 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET10829743  Lupinus arboreus Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2615 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
  POM299302  Lupinus arboreus var. eximius H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, State Highway 1. Comment
  CHSC33094  Lupinus bicolor Jane A. Rogers 1979-4-14 4 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  UC796636  Lupinus bicolor Ira L. Wiggins 1949-4-30 12066 Sonoma 4 mi w Calistoga (just w of the county line); w of Calistoga Comment
  UCR248750  Lupinus bicolor Peter Rubtzoff 1969-5-11 6045 Sonoma Laguna de Santa Rosa, NE of Graton, at end of Piner Road 30 Comment
  RSA788831  Lupinus bicolor Carrie A. Herd 1982-3-28 61 Sonoma Scagg Springs Road, 7.5 mi. W of the west end of the New Scagg Springs Road Comment
  RSA52650  Lupinus bicolor subsp. microphyllus I. L. Wiggins 1943-4-30 12066 Sonoma 4 miles west of Calistoga, just west of the county line. Comment
  CAS-BOT-BC187859  Lupinus chamissonis Alice Eastwood; John Thomas Howell 1939-4-2 7375 Sonoma Russian River Canyon, near Monte Rio Comment
  SEINET10485230  Lupinus densiflorus var. crinitus A. Arthur Heller 1938-5-14 Heller 15091 Sonoma Grassy roadside banks near two rooks, w of petaluma, growing in dense colonies In clay soil. Fresh fls mostly deep violet. Humid transition life zone. Comment
  HSC14968  Lupinus densiflorus var. palustris H. E. Parks, S. T. Parks 1930-5-9 600 Sonoma West end of Knights Valley 152 Comment
  SEINET10485253  Lupinus densiflorus var. palustris Melvin L. Conrad, David B. Dunn; Katherine L. Morris 1973-6-8 Conrad 7076 Sonoma Roadside along hwy 1, 3.4 mi. N of jenner. 91 Comment
  RSA34035  Lupinus densiflorus var. palustris A. A. Heller 1938-5-14 15091 Sonoma Near Two Rocks. Comment
  RSA0003396  Lupinus densiflorus var. persecundus Marcus E. Jones 1882-7-17 3329 Sonoma Duncan's Mills. Comment
  SEINET10903859  Lupinus formosus Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-9 Conrad 7084 Sonoma On n-facing grassy clay bank, .6 mi w of sonoma-napa co line on hwy 121. 61 Comment
  UC201962  Lupinus formosus Milo S. Baker May 1899 Sonoma on Occidental Road Green Valley near Gallager's Green Valley Comment
  SEINET10490782  Lupinus latifolius subsp. latifolius Robert F. Thorne 1965-4-19 Thorne 34317 Sonoma Fls violet; on well-drained embankment in douglas-fir forest; harrison grade, 1/2 Mi. From green valley rd.; With calycanthus, pseudotsuga, umbellularia, etc 152 Comment
  UC73199  Lupinus latifolius var. latifolius Miss M. Alice King April, 1897 Sonoma near Healdsburg; near Healdsburg Comment
  SEINET5790384 Image available Lupinus microcarpus Marcus E. Jones 1882-1 3329 Sonoma Duncan's Mills Comment
  SD130432  Lupinus microcarpus var. densiflorus F. Almeda, G. DeNevers 1981-4-28 4904 Sonoma Ca. 0.5 miles from the main gate to Pepperwood Ranch Natural Preserve just off Franz Valley Road Comment
  UCD108752  Lupinus microcarpus var. densiflorus R. Tofsrud 1948-5-1 s.n. Sonoma Cloverdale. Comment
  SD88509  Lupinus microcarpus var. microcarpus Darley F. Howe 1972-6-28 Sonoma North of Jenner Comment
  SD130431  Lupinus nanus F. Almeda, G. DeNevers 1981-3-30 4887 Sonoma Pepperwood Ranch; summit and east-facing slope of Three Tree Hill. Comment
  UCD108973  Lupinus nanus Mary M. Hektner 1975-4-27 185 Sonoma next to parking lot; Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD109093  Lupinus nanus Caitlin Lewis; William Mutch 1993-4-17 2 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. Comment
  POM276264  Lupinus nanus subsp. nanus Lyman D. Benson 1935-3-31 6403 Sonoma U.S. 101, S. of Cloverdale. 244 Comment
  UC84431  Lupinus sericatus Katharine Brandegee April 1890 Sonoma Mt. St. Helena Comment
  HSC34847  Lupinus vallicola subsp. apricus Thomas W. Nelson 1975-5-8 1809 Sonoma Beside Hwy. 101 at Asti Comment
  RSA22011  Lupinus variicolor Alice Eastwood, John T. Howell 1939-4-2 7362 A Sonoma Larkspur Rock Comment
  SBBG125951  Lupinus variicolor D. Huang 2006-5-30 06053006 Sonoma Bodega Marine Laboratory, coastal bluff near building 2 Comment
  SEINET6932751 Image available Lupinus versicolor W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Cove at Bodega Head. Comment
  UC570331  Luzula comosa H. S. Yates 1936-5-16 5591 Sonoma two mi se Forestville; Sebastopol Quad., se of Forestville 30 Comment
  UC727764  Luzula comosa Milo S. Baker 1946-5-13 11390 Sonoma marsh adjoining Pitkin Marsh on n (Vine Hill Region); , Pitkin Marsh on n Comment
  CAS-BOT-BC441297  Luzula macrantha J. W. Congdon 1870-5-21 s.n. Sonoma Petaluma Comment
  UC1122875  Lythrum hyssopifolia H. S. Yates 1936-5-16 5599 Sonoma 2 mi se of Forestville (Pitkin Marsh); Pitkin Marsh 30 Comment
  RSA0015997  Lythrum hyssopifolia Peter Rubtzoff 1954-7-4 1521 Sonoma Southwest area adjoining Austin Creek Marsh. Comment
  UCD166261  Madia Peter Rubtzoff 1970-8-19 6329 Sonoma On Austin Creek Beach, 3.5 miles south of Cazadero. Comment
  CHSC107497  Madia elegans D. G. Kelch; Troy McGregor 2010-8-22 10 .355 Sonoma Nr Peak of Geyser Peak Rd. Comment
  POM56176  Madia elegans subsp. densifolia M. Alice King 1896-10 s.n. Sonoma Healdsburg Comment
  JEPS128198  Madia exigua Roger Raiche 2000-5-4 074 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC343446  Madia gracilis Peter Rubtzoff 1952-6-3 1171 Sonoma Fitch Mtn. Grove, near Healdsburg Comment
  SD112630  Madia gracilis Darley F. Howe 1963-5-23 3524 Sonoma 2.8 miles north of Cloverdale on #128 245 Comment
  CAS-BOT-BC345213  Madia sativa Alice Eastwood; John Thomas Howell 1936-7-4 3825 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC345214  Madia sativa John Thomas Howell 1932-9-17 10764 Sonoma 1 mile south of Kenwood Comment
  CAS-BOT-BC345229  Madia sativa H. M. Hall 1916-7-24 10250 Sonoma Near Petaluma Comment
  UCR280152  Madia sativa Peter Rubtzoff 1974-5-18 7415 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  RSA790980  Madia sativa Peter Rubtzoff 1955-9-25 2161 Sonoma Forestville Marsh area. Comment
  UCD139126  Maianthemum stellatum M. Wiesendanger 1927-5-5 725 Sonoma Kenwood Springs. Comment
  CAS-BOT-BC511499  Maianthemum stellatum J. W. Congdon 1880-5-2 s.n. Sonoma Cleveland's Creek Comment
  CAS-BOT-BC540132  Malus domestica Peter Rubtzoff 1951-11-24 850 Sonoma Western branch of the Upper Marsh; Pitkin Marsh, near Forestville Comment
  SBBG32440  Marah fabacea L. S. Rose 1962-4-18 62026 Sonoma Laguna de Santa Rosa, 2 mi NE of Graton 30 Comment
  POM59383  Marah oregana A. A. Heller, H. E. Brown 1902-3-10 5023 Sonoma Hills East of Santa Rosa. Comment
  RSA128555  Marah oregana P. H. Raven 1950-4-6 1601 Sonoma Lower slopes of Rincon Ridge. Comment
  RSA786861  Matricaria matricarioides Carrie A. Herd 1982-5-4 87 Sonoma Rohnert Park, C.S.U. Sonoma, between dorm parking lot and bicycle path Comment
  UCD106758  Medicago arabica Mary M. Hektner 1976-4-3 230 Sonoma Sea Ranch Association Office, Sea Ranch, near State Highway 1. Comment
  UCD107850  Medicago polymorpha Caitlin Lewis; William Mutch 1993-4-17 24 Sonoma About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn. 1 mile. Near visitor center. 365 Comment
  CAS-BOT-BC269515  Melica californica John Thomas Howell 1934-3-26 11791 Sonoma 12 miles from Calistoga on Alexander Valley road Comment
  CAS-BOT-BC269516  Melica californica A. A. Heller 1902-4-23 5351 Sonoma Near Sonoma Comment
  UCD87217  Melica californica R. Tofsrud 1947-6-17 195 Sonoma Old Santa Rosa cemetery. Comment
  UCR225456  Melica californica Frederica Bowcutt 1996-5-24 2155 Sonoma Sugarloaf Ridge State Park, c. 50 air mi north of San Francisco and c. 10 air mi east of Santa Rosa; 2.5 air mi northeast of Kenwood and 18 air mi northwest of Napa. Adobe Canyon just north of Sonoma/Rattlesnake Creek confluence on small knoll 372 Comment
  SEINET10926810  Melica californica A. Arthur Heller 1902-4-4 Heller 5315 Sonoma Hills near Santa Rosa. Comment
  JEPS128380  Melica geyeri Roger Raiche 2000-5-5 086 .00 Sonoma The Cedars. Danfield Creek, Leona's Cabin Site. Gualala River, Wheatfield Fork watershed. Comment
  RSA123519  Melica geyeri H. S. Yates 1937-5-30 6545 Sonoma 3 miles WNW of Graton. 61 Comment
  UC34142  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-22 6001 Sonoma Guerneville Comment
  UCD32526  Melica harfordii Beecher Crampton 1954-5-9 1837 Sonoma Sonoma County, 2.5 miles north of Guerneville, on roadside banks. Comment
  UCD87388  Melica harfordii B. Crampton 1955-6-17 2927 Sonoma 1.6 miles west of Forestville. Comment
  UCD87519  Melica harfordii P. B. Kennedy 1915-5-31 s.n. Sonoma Stewarts Point--Annapolis Road. Comment
  UC766884  Melica subulata R. F. Hoover 1941-5-14 5095 Sonoma sw of Occidental (Joy District School) Comment
  UC1146593  Melica torreyana Freed W. Hoffman 1947-5-30 1701 Sonoma Austin Creek Layton Mine; North Coast Ranges, Austin Creek Comment
  SEINET10827767  Melica torreyana A. Arthur Heller 1902-4-4 Heller 5316 Sonoma Hills near Santa Rosa. Comment
  SEINET6205052  Melica torreyana L. S. Rose 1965-1 65022 Sonoma 1 mi N of Sonoma Comment
  UCD89204  Melica torreyana R. Tofsrud 1942-4-1 s.n. Sonoma N. of Sonoma. Road to 'Top O'World. Comment
  CAS-BOT-BC164405  Melissa Peter Rubtzoff 1973-8-28 7277 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC164351  Melissa Peter Rubtzoff 1973-9-9 7317 Sonoma Kenwood Marsh. Comment
  POM283186  Melissa officinalis A. A. Heller 1902-7-8 5819 Sonoma Between Healdsburg and Geyserville Comment
  CAS-BOT-BC164067  Mentha Peter Rubtzoff 1960-10-29 4584 Sonoma Laguna de Santa Rosa, east of Graton (btwn. Occidental and Guerneville Road). Comment
  CAS-BOT-BC157655  Mentha Peter Rubtzoff 1965-8-29 5627 Sonoma Russian River bottom at Forest Hills (5.5 mi. E of Guerneville). Comment
  CAS-BOT-BC164352  Mentha Peter Rubtzoff 1973-8-29 7281 Sonoma Sonoma Creek near Aqua Caliente Road crossing west of Aqua Caliente. Comment
  CAS-BOT-BC164675  Mentha Peter Rubtzoff 1963-8-17 5229 Sonoma Russian River Mouth Marsh. Comment
  CAS-BOT-BC173614  Mentha Peter Rubtzoff 1962-7-4 4965 Sonoma Healdsburg region. Fitch Mts. Grove, 2 mi. east of Healdsburg. Russian River. Comment
  UCR244599  Mentha X piperita Peter Rubtzoff 1960-9-17 4564 Sonoma Laguna de Santa Rosa northeast of Graton, near Guerneville Road Comment
  UC456136  Mentha canadensis I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCR279622  Mentha canadensis Peter Rubtzoff 1959-8-2 4210 Sonoma Willow Creek Marsh 9 Comment
  SEINET7952677  Mentha pulegium G. R. Hall 1906-10-14 s.n. Sonoma Guerneville. Comment
  CAS-BOT-BC164702  Mentha spicata Peter Rubtzoff 1970-8-18 6322 Sonoma 5 miles north of Sears Point. Comment
  RSA784547  Mentha spicata Peter Rubtzoff 1955-10-12 2166 Sonoma Duncans Mill Marsh. Comment
  RSA785145  Mentha spicata Peter Rubtzoff 1973-9-9 7315 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC428953  Micranthes californica Ella Dales Cantelow 1939-4-10 2604 Sonoma Grade n.w. of Cazadero Comment
  CAS-BOT-BC428954  Micranthes californica G. DeNevers 1981-3-14 547 Sonoma Pepperwood Ranch. Pippindale farm, 7 mi. NE of Santa Rosa, near Mark West lodge. In the 1st E fork of the N fork Comment
  JEPS128228  Micropus Roger Raiche 2000-5-4 071 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS58999  Micropus amphibolus John Thomas Howell 1965-3-25 41033 Sonoma 3 mi se of Sonoma Comment
  CAS-BOT-BC348627  Micropus californicus var. californicus G. DeNevers 1981-5-5 944 B Sonoma Pepperwood Ranch. Hansel's cow pasture. On the trail across the driveway to the Pippindale Garden Comment
  CHSC34598  Microsteris gracilis Jeffrey D. Prouty 1979-4-11 220 Sonoma Ca. 7 mi n of Santa Rosa.Ca. 100 yds w of Mark West Springs Rd., ca. 300 yds n of jctn. with Michelle Way. 164 Comment
  UCD118901  Microsteris gracilis Frederica Bowcutt 1994-5-21 1833 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 18 air miles NW of Napa, 1.5 air miles NE of Kenwood. Along the Hillside Trail 1/2 mile. 396 Comment
  SD6295  Mimetanthe pilosa Michener, Bioletti 1891-9-7 1686 b Sonoma Shellville Comment
  CAS-BOT-BC311875  Mimulus Peter Rubtzoff 1954-7-29 1606 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC311876  Mimulus Peter Rubtzoff 1959-6-20 4171 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC320508  Mimulus Peter Rubtzoff 1964-5-31 5326 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg, along Russian River. Comment
  RSA0025403  Mimulus Peter Rubtzoff 1969-5-24 6060 Sonoma 6.5 miles NE of Penngrove, on Lichan Road. 427 Comment
  JEPS76922  Mimulus aurantiacus var. aurantiacus Robert M. Lloyd 1963-2-24 2057 Sonoma 4 mi s State Highway 12 (above State Highway 1) 15 Comment
  RSA420300  Mimulus aurantiacus var. aurantiacus Ynez Whilton Winblad 1934-6-10 s.n. Sonoma Nob Hill at Monte Rio on the Russian River Comment
  UC445122  Mimulus aurantiacus var. aurantiacus Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  UC26873  Mimulus bolanderi F. T. Bioletti 1892-1 Sonoma Hood's Peak Comment
  CDA11329  Mimulus congdonii G. F. Hrusa 1995-4-2 12039 Sonoma North Coast Biodiversity Arena; Along Franz Valley School Rd. approx. 1 mile NW of Napa/Sonoma county line. Comment
  RSA0040389  Mimulus guttatus Peter Rubtzoff 1954-7-29 1606 Sonoma Gerneville Marsh. Comment
  UCR252546  Mimulus guttatus Peter Rubtzoff 1972-5-25 6764 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
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Nov 23 2015
  UCR275268  Mimulus guttatus Peter Rubtzoff 1955-7-9 1929 Sonoma North Coast Range, Forestville Marsh 71 Comment
  UC353818  Mimulus inodorus Milo S. Baker 1928-6-28 3191 b Sonoma Pitkin's Marsh Vine Hill District Comment
  UC454796  Mimulus inodorus I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCD151179  Mimulus microphyllus James A. Neilson Jr. 1974-4-16 2874 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  JEPS3030  Mimulus tricolor Milo S. Baker 1952-4-30 12408 B Sonoma along road e of Summit Bennett Valley rd. Comment
  UCSC000249  Minuartia californica I. J. Condit 2013-3-7 s.n. Sonoma Petaluma Comment
  POM161866  Modiola caroliniana Rimo Bacigalupi 1928-6-18 1904 Sonoma Beach at mouth of Salmon Creek, 2 miles N of Bodega Bay. Comment
  JEPS128261  Moehringia macrophylla Roger Raiche 2000-4-15 034 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC435115  Mollugo verticillata James McMurphy 1906-7-16 s.n. Sonoma Fulton Comment
  CAS-BOT-BC435116  Mollugo verticillata James McMurphy 1906-7-16 s.n. Sonoma Fulton Comment
  CHSC67969  Monardella purpurea Jack Guggolz; Betty Guggolz 1992-3-12 1242 Sonoma W side of Rincon Ridge N of Santa Rosa city. 213 Comment
  SBBG7673  Monardella sheltonii C. Bornstein, E. Collins 2006-8-23 Sonoma Bohemian Hwy, along rd above Dutch Bill Crk 45 Comment
  JEPS128225  Monardella villosa Roger Raiche 2000-7-15 138 .00 Sonoma The Cedars. Campbell Ranch. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET4173672 Image available Monardella villosa Annetta Carter, Ethel Crum 1941-6-22 1641 Sonoma 3.3 miles east of Bay (Bodega Bay). Comment
  CAS-BOT-BC314178  Monardella villosa subsp. subserrata F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga. Comment
  JEPS51860  Monardella villosa subsp. villosa Eleanor Armstrong 1932-5-15 458 Sonoma 8 mi north Santa Rosa. 121 Comment
  UC32607  Monardella villosa subsp. villosa Alice King June, 1897 Sonoma Healdsburg Comment
  UCLA62411  Monardella villosa subsp. villosa unknown 1841-1-1 Sonoma Bodega Comment
  SEINET12320782  Monardella viridis W. Knight, Knight, I. 1981-1 3958 Sonoma 2.3mi up Cavedale Road from State Hwy #12 Comment
  CAS-BOT-BC444999  Montia fontana Peter Rubtzoff 1952-3-23 900 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC445005  Montia fontana Peter Rubtzoff 1955-4-23 1775 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC445006  Montia fontana Peter Rubtzoff 1967-5-21 5841 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  POM203651  Montia stenophylla J. T. Howell 1933-4-1 10926 Sonoma Petaluma Comment
  JEPS121161  Morella californica Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18601 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  CDA5598  Myosotis discolor T. C. Fuller 1958-5-24 3984 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  UCR222562  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 2010-6-5 16253 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
  RSA800350  Myosurus Peter Rubtzoff 1966-4-17 5681 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  SEINET12029316  Myrica californica W. Knight, Knight, I. 1982-1 4612 Sonoma Along roadside at Sea Ranch Comment
  CAS-BOT-BC258925  Myriophyllum hippuroides Peter Rubtzoff 1955-7-16 1966 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC260276  Nassella pulchra Bolander 1864-4-1 s.n. Sonoma Mark West Creek Comment
  SBBG26388  Nassella pulchra B. Crampton 1966-5-10 Sonoma 3 mi S of Healdsburg Comment
  UCD87535  Nassella pulchra Mary M. Hektner; Sue Dakuzaku 1974-6-4 22 a Sonoma Unit 31 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD87696  Nassella pulchra H. S. Yates 1934-4-21 3780 Sonoma Near Bodega. 60 Comment
  JEPS70255  Navarretia cotulifolia W. L. Jepson 1921-6-3 9307 Sonoma s of Santa Rosa (near Wilfred station); Cotati Valley 28 Comment
  UC73612  Navarretia cotulifolia Milo S. Baker May 1899 Sonoma Santa Rosa Comment
  UCD48473  Navarretia intertexta Herbert L. Mason 1940-5-21 12295 Sonoma Head of Maacama Creek, Knights Valley, Sonoma County. Comment
  CAS-BOT-BC232688  Navarretia pubescens James McMurphy 1909-5-29 s.n. Sonoma Canyon near Geyserville Comment
  UC1719857  Navarretia pubescens David Fruchter 1978-9-17 98 Sonoma Diamond D. Comment
  OBI36027  Navarretia squarrosa John C. Roos 1950-7-22 4878 Sonoma 2 miles east of Duncan Mills 61 Comment
  UC133770  Navarretia squarrosa Katharine Brandegee Aug 1892 Sonoma Petrified Forest Comment
  UC1784136  Navarretia squarrosa Ethel Crum 1930-1 738 Sonoma Petaluma Comment
  UCD160847  Navarretia vividior James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3294 b Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 716 Comment
  UC606893  Nemophila heterophylla L. Constance 1938-4-24 2151 Sonoma 2 mi ne Bodega (Salmon Creek); , ne of Bodega 91 Comment
  POM65258  Nemophila heterophylla A. A. Heller, H. E. Brown 1902-3-16 s.n. Sonoma Russian River, Near Trenton. Comment
  CHSC23124  Nemophila menziesii Robert A. Schlising 1962-3-31 2110 Sonoma In pastured field. Comment
  CHSC31076  Nemophila menziesii N. Kvasnik 1980-4-2 1 Sonoma Ca. 15 mi se of Petaluma. Ca. 1.3 mi w of jct of Warm Springs Rd and Sonoma Mountain Rd on s side of road. 225 Comment
  UC24235  Nemophila menziesii J. Burtt Davy 1896-3-15 1673 Sonoma near Fort Ross; near Fort Ross Comment
  UC880916  Nemophila menziesii Alice Eastwood 1915-5-1 6843 Sonoma Mt. St. Helena Comment
  POM179734  Nemophila menziesii var. atomaria A. A. Heller 1903-4-23 6600 Sonoma Fort Ross. Comment
  CAS-BOT-BC231192  Nemophila parviflora Peter Rubtzoff 1953-5-17 1392 Sonoma S of Guerneville (Neeley Hill area) Comment
  UC880930  Nemophila parviflora Lewis S. Rose 1940-5-6 40262 Sonoma near Kenwood (Sonoma Creek Canyon); , near Kenwood 243 Comment
  UCD119926  Nemophila pedunculata Frederica Bowcutt 1994-5-1 1794 Sonoma Sugar Loaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. S of Sonoma Creek about 125 yards 1/4 mile NW of confluence with Rattlesnake Creek, meadow in center of campground. Comment
  CAS-BOT-BC157698  Nicotiana Peter Rubtzoff 1958-8-30 3939 Sonoma Vacation Beach, near Guerneville, along Russian River Comment
  SEINET12337434  Nicotiana attenuata W. Knight, Knight, I. 1989-1 6500 Sonoma Ely Road near corner of Corona Road near Petaluma 9 Comment
  CAS-BOT-BC157656  Nicotiana bigelovii Peter Rubtzoff 1959-9-19 4284 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  JEPS128195  Notholithocarpus densiflorus var. densiflorus Roger Raiche 1999-12-4 052 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD127739  Oenanthe sarmentosa Mary M. Hektner; Cathy Hendel 1974-6-26 073 Sonoma Unit 3 Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA799988  Oenothera Peter Rubtzoff 1971-5-8 6441 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mi west of Arnold Drive. Comment
  UCD15529  Oenothera cheiranthifolia Gregory J. Lowenberg 1988-4-16 22 Sonoma 100 m E. of Horshoe Cove, Bodega Head. 12 Comment
  UC429299  Ornithogalum nutans Mrs. Morrow Mar 1898 700 Sonoma Santa Rosa; yard at 2nd St Comment
  SEINET6171222 Image available Orobanche bulbosa Sally Walker 1984-7-22 Sonoma Schoolhouse beach Comment
  RSA0069019  Orobanche californica subsp. jepsonii Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  UC27866  Orobanche fasciculata F. T. Bioletti 1892-1 Sonoma Sonoma. Comment
  RSA184858  Orthocarpus erianthus L. S. Rose 1965-4-4 65018 Sonoma Sonoma. 24 Comment
  RSA34074  Orthocarpus faucibarbatus A. A. Heller 1940-4-22 15555 Sonoma At Windsor. Comment
  RSA73964  Orthocarpus faucibarbatus Milo S. Baker 1952-4-23 12407 Sonoma Western outskirts of Sonoma along 5th St. Comment
  RSA144398  Orthocarpus lithospermoides Roxana S. Ferris, Laura Lorraine 1961-6-14 13549 Sonoma Junction of Occidental Road with Facendini Lane Comment
  POM15378  Orthocarpus lithospermoides M. S. Baker 1898-5-7 599 Sonoma Glen Ellen Comment
  UCD110981  Oxalis oregana R. H. Miller 1949-4-6 21 Sonoma beside Highway 12, about 5 miles southeast of Monte Rio. Comment
  UC964740  Packera Herbert Mason 1934-4-28 8060 Sonoma Dohrman Creek Jensen's Ranch (head) Comment
  UCD160299  Packera eurycephala James A. Neilson Jr. 1975-5-17 3192 Sonoma West of State Highway 29, Robert Louis Stevenson State Park, 2/3 of the way to summit of Mt. St. Helena along road. (Exact location unknown. Elevation and coordinates estimated by label maker.) 1165 Comment
  UC176759  Packera eurycephala var. eurycephala W. J. V. Osterhout 1909-1-1 Sonoma Geysers Comment
  CAS-BOT-BC316926  Packera greenei Helen Katherine Sharsmith 1952-6-18 4127 Sonoma Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains. 975 Comment
  RSA784566  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River bottom at Forest HIlls, 5.5 mi east of Guerneville. Comment
  POM188279  Panicum acuminatum var. acuminatum Marcus E. Jones 1931-7-5 29210 Sonoma The Geysers. Comment
  UCD88550  Panicum acuminatum var. fasciculatum Mary M. Hektner 1974-7-6 132 A Sonoma Unit 34-A Owners' Map, Sea Ranch. Comment
  UCD151254  Panicum acuminatum var. thermale James A. Neilson Jr. 1974-7-10 2837 Sonoma Mayacmas Mountains. Little Geysers. 731 Comment
  UCD89123  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 a. Sonoma Northeast Sonoma County: 'The Geysers'. Comment
  UCD89133  Panicum acuminatum var. thermale Freed W. Hoffman 1943-6-13 2040 Sonoma The Geysers. Comment
  UCSC000082  Panicum capillare Ken Kellman 1998-9-12 s.n. Sonoma Sandy ground above overflow pool of the Russian River, near Guerneville Comment
  UCD35512  Paronychia franciscana Beecher Crampton 1957-7-22 4363 Sonoma Along State Hwy. 1, 8.2 miles north of Stewart's Point. Comment
  UC972197  Parvisedum pumilum Milo S. Baker 1952-4-20 12399 Sonoma ca 1/4 mi n of Caliente (e side of Highway 12); e side of Highway 12 Comment
  UCD148512  Paspalum distichum Peter Rubtzoff 1965-8-16 5607 Sonoma Russina River margin at Forest Hills (5.5 miles E of Guerneville). Comment
  RSA177942  Pedicularis densiflora Robert F. Thorne 1965-4-19 34319 Sonoma N side of Vine Hill School Road, 0.5 mile from Vine Hill Road. 76 Comment
  RSA800161  Pelargonium capitatum Peter Rubtzoff 1970-10-29 6424 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC69305  Pellaea andromedifolia Margot Lowry 1983-5-1 45 Sonoma 1 mi from top of Sonoma Mtn Rd on Sonoma Mtn. 500 Comment
  UCD137553  Pellaea andromedifolia Frederica Bowcutt 1994-6-12 1870 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail above Adobe Canyon Road (road visable from trail). Less than 1/8 mile SW of trail juncture with Pony Gate Gulch Creek. 326 Comment
  POM23403  Pellaea mucronata Anonymous 1893-03 12676 Sonoma Hoods Peak Comment
  JEPS27315  Penstemon heterophyllus var. heterophyllus Eleanor Armstrong 1932-5-26 479 Sonoma 1 1/2 mi e Camp Meeker; e of Camp Meeker 121 Comment
  UC27503  Penstemon newberryi var. sonomensis F. T. Bioletti 1892-1 Sonoma Hood's Peak Comment
  SEINET12329975  Pentagramma triangularis F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -203 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 800 Comment
  SEINET12335254  Pentagramma triangularis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -272 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC71731  Pentagramma triangularis subsp. triangularis Peter Rubtzoff 1952-6-9 1181 Sonoma North slopes of Fitch Mtn., near Healdsburg Comment
  UCR222556  Pentagramma triangularis subsp. triangularis George K. Helmkamp, E. A. Helmkamp 2010-6-5 16241 Sonoma North Coast Ranges, River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guerneville on slope above the Russian River 12 Comment
  RSA276578  Perideridia gairdneri subsp. gairdneri Lincoln Constance, T. Chuang, Robert Ornduff, Peter Rubtzoff 1965-10-2 3766 Sonoma Marsh on Atascadero Creek 1 mile NW of Grafton 183 Comment
  CAS-BOT-BC413637  Persicaria amphibia Peter Rubtzoff 1971-6-25 6554 Sonoma Off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing Comment
  CAS-BOT-BC413743  Persicaria hydropiper Peter Rubtzoff 1968-8-31 5951 Sonoma Russian River bottom at Forest Hills, 5.5 mi. east of Guerneville Comment
  CAS-BOT-BC413744  Persicaria hydropiper Peter Rubtzoff 1968-8-18 5930 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads Comment
  CAS-BOT-BC418905  Persicaria hydropiperoides Peter Rubtzoff 1960-9-14 4526 Sonoma Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads) Comment
  CAS-BOT-BC418906  Persicaria hydropiperoides Peter Rubtzoff 1960-9-17 4565 Sonoma Laguna de Santa Rosa area northeast of Graton (near Laguna Road) Comment
  CAS-BOT-BC419117  Persicaria lapathifolia Peter Rubtzoff 1966-9-25 5822 Sonoma Laguna de Santa Rosa east of Graton betw. Occidental and Guerneville roads Comment
  CAS-BOT-BC419279  Persicaria maculosa Catherine Best 1981-8-22 s.n. Sonoma On Stoetz Lane, about 2 miles northeast of Occidental Comment
  UC35655  Petasites frigidus var. palmatus H. N. Bolander 1864-1 3965 Sonoma Geysers Pine Mountain Comment
  UC35660  Petasites frigidus var. palmatus J. Burtt Davy March 1896 1639 Sonoma near Duncan's Mills Comment
  POM299082  Phacelia californica J. T. Howell 1930-7-27 5403 Sonoma One mile north of Fort Ross. Comment
  UCD120296  Phacelia californica Frederica Bowcutt; Joy Keeney, Adam Greene 1994-5-21 1808 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Meadow trail appx. 1/2 mi from trailhead. 396 Comment
  UCD120302  Phacelia californica K. Esau 1932-5-2 s.n. Sonoma Bodega Bay. Comment
  CDA40384  Phacelia distans T. C. Fuller 1958-5-24 4020 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  JEPS22726  Phacelia distans Rimo Bacigalupi 1958-5-24 6364 Sonoma n slope just below Camp Meeker; Dutch Bill Creek Canyon, Alder Canyon 97 Comment
  RSA26574  Phacelia distans J. T. Howell 1930-6-8 5274 Sonoma North end of Bodega Bay. Comment
  UC107372  Phacelia distans Alice Eastwood 1900-7-4 Sonoma type locality Bodega Point Comment
  OBI39524  Phacelia imbricata F. H. Utech, Walter and Ira Knight, Ira Knight 1984-4-16 84 -082 Sonoma Ca 4.0 mi NNW of Sonoma on Cavedale Rd from jctn with CA hwy 12; ca 0.5 mi N on Cavedale rd from jctn 152 Comment
  UC901846  Phacelia imbricata L. Constance, L. R. Heckard, and A. R. Kruckeberg 1950-5-12 3328 Sonoma Alexander Valley-Pine Flat rd 3 mi w Contact Mine Comment
  SBBG39553  Phacelia imbricata J. T. Howell 1929-6-9 4305 Sonoma 6.5 miiles from Santa Rosa on rd to Petrified Forest Comment
  SD72089  Phacelia imbricata John Thomas Howell 1929-6-9 4302 Sonoma 2.0 miles north of Sonoma. Comment
  RSA133941  Phacelia imbricata subsp. imbricata L. R. Heckard 1952-4-15 227 Sonoma Along road to Pine Flat, about two and a half miles northeast of Alexander Valley. 61 Comment
  RSA170287  Phacelia imbricata subsp. imbricata W. L. Jepson 1911-4-30 4185 Sonoma Sonoma Valley Comment
  RSA178039  Phacelia imbricata subsp. imbricata Robert F. Thorne 1965-4-20 34390 Sonoma Los Alamos Road, ca. one to two miles northeast of State Highway 12. Comment
  CAS-BOT-BC154987  Phalaris Peter Rubtzoff; Nancy Harrison 1978-5-20 9175 Sonoma Todd Road, 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road (off N side of road, in Todd Road Wildflower Preserve). Comment
  RSA0023082  Phalaris Peter Rubtzoff, Nancy Harrison, Ruth Hass, Charles Quibell 1974-8-31 7839 Sonoma Kenwood Marsh. Comment
  UC933819  Phalaris angusta Leo Koch 1940-4-22 827 Sonoma at Geysers in Sulfur Creek Canyon; , Geysers Comment
  UCR244624  Phalaris angusta Peter Rubtzoff 1972-6-23 6785 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC258952  Phalaris aquatica Peter Rubtzoff 1959-6-13 4137 Sonoma Sonoma County Marshes. Willow Creek Marsh Comment
  CAS-BOT-BC258950  Phalaris aquatica J. Penalosa 1961-5-24 1602 Sonoma Pepper Rd. 0.9 mi. N of Petaluma - Valley Ford Rd. Comment
  CAS-BOT-BC258951  Phalaris aquatica David L. Morgan 1958-8-9 s.n. Sonoma 2 mi. N. of Occidental on Bohemian Highway Comment
  SEINET11687491  Phalaris aquatica W. Knight, Knight, I. 1984-1 5417 Sonoma next to Spring Lake, Howarth Park, Santa Rosa Comment
  UCD88766  Phalaris californica R. Tofsrud 1951-5-1 s.n. Sonoma Summit of road between Kenwood and Oakville. Comment
  UC730028  Phalaris californica Leo F. Koch 1940-4-20 806 Sonoma along Plantation Road ten mi from Highway 101 Comment
Read comments
Jun 1 2015
  RSA783844  Phalaris lemmonii Peter Rubtzoff 1972-6-23 6784 Sonoma Atascadero Creek Marsh. Comment
  UCD89016  Phalaris lemmonii R. Tofsrud 1941-4-1 125 Sonoma Near Santa Rosa. Comment
  CAS-BOT-BC265917  Phalaris lemmonii John Thomas Howell 1947-6-5 23243 Sonoma Near Wright School 4 mi. W of Santa Rosa Comment
  CAS-BOT-BC250743  Phalaris paradoxa Peter Rubtzoff 1962-4-18 4802 Sonoma Border of Highway #101 east of Petaluma Comment
  CAS-BOT-BC250744  Phalaris paradoxa David L. Morgan 1956-5-17 s.n. Sonoma On Watmaugh Rd., 1/2 mi. W. of junction of Arnold Drive Comment
  UCD89418  Phalaris paradoxa K. Wagnon 1939-5-20 210 Sonoma Along highway at Santa Rosa airport. Comment
  CAS-BOT-BC253561  Phleum alpinum David D. Keck; J. Clausen 1935-6-15 3377 Sonoma 5 mi. S. of Jenner Comment
  CAS-BOT-BC253562  Phleum alpinum Alice Eastwood 1915-6-29 4874 Sonoma Bodega Point Comment
  UC1023573  Phleum alpinum Virginia Bufford 1936-5-1 167 Sonoma Larkspur Rock Bodega Canyon; , Larkspur Rock Comment
  CAS-BOT-BC260878  Phleum pratense Peter Rubtzoff 1958-7-5 3733 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC222474  Pholistoma Saichi Kawahara 1968-4-20 316 Sonoma 3 miles northeast of Lakeville Road 76 Comment
  UCD102227  Phoradendron leucarpum subsp. tomentosum G. F. Hrusa; T. D. Wilfred 1995-12-3 12481 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Approx. 1/2 distance to summit along Ida Clayton Rd. 300 Comment
  UCD160920  Phragmites australis James A. Neilson Jr. 1975-7-8 3383 Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. (Exact location unknown. Coordinates and elevation estimated by label maker.) 731 Comment
  CAS-BOT-BC376257  Physalis philadelphica Greg de Nevers 1992-7-30 10236 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 304 Comment
  CAS-BOT-BC140628  Physocarpus capitatus Walter Knight; Irja Knight 1963-8-13 165 Sonoma Harrison Grade Comment
  UC12453  Physocarpus capitatus Harley P. Chandler 1900-5-25 656 Sonoma Bodega Comment
  UC1134141  Pinus attenuata J. B. Spring 1932-7-3 95 Sonoma 2/5 mi sw Veeder Mountain; Napa Quadrangle 609 Comment
  CAS-BOT-BC72879  Pinus muricata Mary P. Wells 1985-10-4 666 Sonoma Southeast edge of somewhat - pygmy part of Travelers Insurance Timber Preserve, the Sea Ranch. Comment
  SEINET5055374  Pinus muricata Unknown 1983-7-7 E- 3 Sonoma Vicinity Salt Point, State Hwy 1 Comment
  RSA394829  Pinus muricata var. borealis D. Axelrod 1983-7-7 E- 3 Sonoma Vicinity Salt Point, Sate Highway 1. 76 Comment
  CAS-BOT-BC72884  Pinus ponderosa Walter Knight; Irja Knight 1963-12-27 453 Sonoma Pine Flat road, Circle 8 Ranch Comment
  UCD134988  Pinus radiata Mary M. Hektner 1975-8-14 222 Sonoma Next to Whalers' Reach, Unit 7 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC72731  Pinus sabiniana Walter Knight; Irja Knight 1963-9-1 263 Sonoma Asti Comment
  JEPS128295  Piperia elongata Roger Raiche 2010-7-11 034 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC166774  Plagiobothrys Peter Rubtzoff 1972-4-23 6735 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC176145  Plagiobothrys Peter Rubtzoff 1969-5-11 6032 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC228040  Plagiobothrys Rimo Bacigalupi 1926-5-2 s.n. Sonoma Cazadero Comment
  RSA620970  Plagiobothrys bracteatus Peter Rubtzoff 1955-5-7 1822 Sonoma Guerneville Marsh Comment
  JEPS60963  Plagiobothrys bracteatus Milo S. Baker 1927-5-8 2141 a Sonoma summit of Bennett Valley road Comment
  POM204149  Plagiobothrys greenei J. T. Howell 1934-3-27 11803 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  UC78077  Plagiobothrys nothofulvus K. Brandegee May 1889 Sonoma Cloverdale Comment
  HSC87768  Plagiobothrys nothofulvus Kenneth Milam 1966-3-25 15 Sonoma 3/4 mi. W of Rockville Comment
  RSA620968  Plagiobothrys reticulatus Peter Rubtzoff 1962-8-22 5041 Sonoma Bodega Bay Marsh. Comment
  UC725293  Plagiobothrys reticulatus A. A. Heller 1938-5-14 15081 Sonoma just back of the sea n of bay Bodega Bay Comment
  JEPS60987  Plagiobothrys reticulatus var. reticulatus K. Brandegee June 1905 Sonoma Bodega Bay Comment
  RSA783723  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-11 6030 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  UCD166071  Plagiobothrys tener var. tener Peter Rubtzoff; H. A. Froebe 1971-5-30 6488 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  UCR280147  Plagiobothrys tener var. tener Peter Rubtzoff 1972-4-23 6735 Sonoma North Coast Range, 4.25 miles west of Glen Ellen on Bennett Valley Road 220 Comment
  CAS-BOT-BC258016  Plantago Peter Rubtzoff 1965-8-16 5596 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA634964  Plantago coronopus Michael A. Vincent, Ethan H. Freid 1998-4-8 8175 Sonoma Bodega Bay, Bodega Bay Marine Reserve, off Bodega Road, Bodega Head Comment
  CAS-BOT-BC258382  Plantago major Peter Rubtzoff 1973-10-3 7331 Sonoma 0.75 miles northwest of Freestone. Comment
  CAS-BOT-BC258380  Plantago subnuda Peter Rubtzoff 1954-7-26 1562 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC258381  Plantago subnuda Peter Rubtzoff 1968-7-29 5922 Sonoma Upper Salmon Creek Marsh. Comment
  SEINET3854582 Image available Platystemon Lewis S. Rose 1933-5-9 33157 Sonoma Bodega Bay. Comment
  CAS-BOT-BC92124  Platystemon californicus Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs. Comment
  UC118438  Platystemon californicus T. S. Brandegee May 1890 Sonoma Cloverdale Comment
  CAS-BOT-BC92119  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-5-31 4509 Sonoma 6 miles north of Bodega Bay. Comment
  SD88404  Platystemon californicus Darley F. Howe 1972-5-1 Sonoma Duncan Point Comment
  SEINET6911642  Platystigma linearis W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Dunes near their base, Bodega Head, near middle of peninsula. Comment
  UC725594  Plectritis brachystemon A. A. Heller 1938-5-14 15088 Sonoma just e of Bodega Bay (at Fort Ross); Fort Ross Comment
  UC416756  Plectritis ciliosa subsp. ciliosa Milo S. Baker 1898-3-26 691 Sonoma Hills near McDonald's Reservoir Comment
  POM253176  Plectritis congesta subsp. nitida A. A. Heller 1938-5-14 15088 Sonoma Just east of Bodega Bay. Comment
  UC1751059  Pleuropogon californicus Annetta M. Carter 1934-4-29 510 Sonoma 1 mi. W of Two Rock Junction on rd. to Tomales. Comment
  UCD90175  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma. 24 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
  RSA184881  Pleuropogon californicus var. californicus L. S. Rose 1965-4-4 65019 Sonoma Sonoma. 24 Comment
  RSA155469  Pleuropogon californicus var. californicus L. S. Rose 1962-4-11 62020 Sonoma Laguna de Santa Rosa, half mile east of Cunningham. 15 Comment
  RSA176931  Pleuropogon californicus var. californicus P. H. Raven 1963-4-28 18252 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  RSA201212  Pleuropogon californicus var. californicus David L. Morgan 1961-4-25 s.n. Sonoma Low wet field near Stemple Creek, 3 miles southwest of Cotati. Comment
  UCD90203  Pleuropogon californicus var. californicus A. A. Beetle 1946-5-6 4263 Sonoma 1/2 mile south of Cotati. Comment
  UC1446217  Pleuropogon hooverianus Paul But with Grace Law 1977-5-3 P 6 Sonoma 3 mi ne of Penngrove (along Pressley Road) Comment
  HSC100363  Pleuropogon hooverianus J. McRae 1998-5-21 Sonoma Sonoma Mtn. 0 Comment
  RSA336124  Pleuropogon hooverianus Paul But 1977-5-3 P 6 Sonoma 3 miles NE of Penngrove, along Pressley Road Comment
  UCD92205  Poa Collector Unknown 1941-4-1 381 Sonoma field east of old S. R. Cemetary. Comment
  CAS-BOT-BC255599  Poa annua Peter Rubtzoff 1960-5-22 4401 Sonoma Laguna de Santa Rosa area E of Graton, between Occidental and Guerneville roads 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
  RSA73959  Poa annua Milo S. Baker 1952-4-20 12397 Sonoma East side of Hwy 12, ca. 0.25 mi N. of Caliente Comment
  UCD90366  Poa annua Gerry North 1993-4 4 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. At Goodspeed trailhead pullout. 213 Comment
  POM204983  Poa secunda A. A. Heller 1902-4-9 5249 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  UC1132792  Poa secunda subsp. secunda H. S. Yates 1934-4-22 3852 Sonoma 2 mi s Mark West; Calistoga Quadrangle 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-BC422361  Poa trivialis Peter Rubtzoff 1974-6-2 7526 Sonoma Upper Green Valley Marsh. Comment
  UC1023578  Poa unilateralis Virginia Bufford 1936-5-1 158 Sonoma Larkspur Rock Bodega Canyon Comment
  CAS-BOT-BC244265  Poa unilateralis John Thomas Howell 1931-4-18 6429 Sonoma 8 miles N of Bay Comment
  SBBG47335  Pogogyne douglasii P. Rubtzoff 1971-6-23 Sonoma 4.25 mi W of Glen Ellen 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
  SEINET12205439  Polygala californica F. H. Utech 1986-1 86 -108 Sonoma ca 3.5 mi NE on Cavedale Road 350 Comment
  CAS-BOT-BC258015  Polygonum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7847 Sonoma Kenwood Marsh. Comment
  RSA0018588  Polygonum Peter Rubtzoff 1966-8-25 5802 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC414113  Polygonum aviculare subsp. aviculare Peter Rubtzoff 1955-8-7 2034 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC414114  Polygonum aviculare subsp. aviculare Peter Rubtzoff 1954-8-4 1650 Sonoma Guerneville Marsh Comment
  UCR19269  Polygonum convolvulus John C. Roos 1959-7-30 s.n. Sonoma North Coast Ranges, Healdsburg garden Comment
  UC850174  Polygonum lapathifolium Lewis S. Rose 1938-9-11 38254 Sonoma Bloomfield 30 Comment
  RSA94323  Polygonum punctatum Peter Rubtzoff 1952-10-26 1330 Sonoma Western branch of the upper Marsh, at a shady place in shallow water Comment
  UC1606995  Polypodium glycyrrhiza Margaret Rockwood and L. Esposito 1993-3-31 303 Sonoma Ca. 3 km NW of Bodega town (Fitzpatrick Lane) 30 Comment
  UCD91018  Polypogon interruptus Freed W. Hoffman 1941-7-3 2075 Sonoma North Coast Ranges. Near Guerneville. Comment
  CAS-BOT-BC237405  Polypogon monspeliensis Peter Rubtzoff 1960-10-29 4574 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC237406  Polypogon monspeliensis Peter Rubtzoff 1955-7-9 1935 Sonoma Forestville Marsh Comment
  POM206736  Polypogon monspeliensis A. A. Heller 1902-6-7 5652 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UCD92451  Polypogon viridis Beecher Crampton 1959-6-16 5393 Sonoma 2 miles E of Occidental, Jonive School area. Comment
  CAS-BOT-BC368071  Polystichum californicum Greg de Nevers 1998-5-31 11269 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Mark West Creek. 400 Comment
  CAS-BOT-BC72165  Polystichum californicum G. DeNevers 1982-2-9 1886 Sonoma beneath big power lines W of Garrison house, due W of Fir Forest Comment
  UC2031961  Polystichum californicum Wendy Born July 2012 Sonoma Armstrong Redwoods State Park, along the road to the Pack Station about 3/4 the way up (immediately across road from large downed tree, on right side of road) Comment
  UCD168040  Polystichum californicum James A. Neilson Jr. 1981-3-13 3993 Sonoma Mayacmas Mountains, east tributary of Hummingbird Creek. 3/4 NE of confluence of Hummingbird Creek and Squaw Creek. (Newspaper lists S/2 NW/4 Sect. 34 T12 R9 while Notebook lists NE/4 SE/4 Sec. 33 T12 R9. Georeferenced to newspaper location information. Exact location unknown, coordinates estimated by label maker.) Comment
  POM23158  Polystichum californicum Michener, Bioletti 1893-06 s.n. Sonoma Adobe Canyon Comment
  UCD19303  Polystichum munitum Terry Reedy 1974-5-11 236 Sonoma Bodega Head, shady gully south of road to Field Station. 12 Comment
  RSA234554  Populus Peter Rubtzoff 1960-5-15 4335 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC102667  Populus fremontii Peter Rubtzoff 1970-6-21 6266 Sonoma tributary of Mark West Creek ca. 3 mi. west of Fulton Comment
  CDA15401  Potamogeton filiformis G. F. Hrusa, R. Gross 1997-8-31 14094 Sonoma North Coast Biodiversity Arena; Uncommon in pond on Foote Ranch, NW base of Mt. St. Helena. Immed. NE of int. of Hwy. 128 and Ida Clayton Road. Single patch in desely vegetated corner on N side of pond. Flowering spikes emersed. Comment
  CDA812  Potamogeton foliosus M. S. Bergseng 1959-1-14 1694 Sonoma Annadel Farms, farm reservoir, Santa Rosa. 0 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-BC257684  Potamogeton nodosus Peter Rubtzoff 1971-9-1 6669 Sonoma Spring Creek Reservoir area. Comment
  CAS-BOT-BC268088  Potamogeton pusillus Peter Rubtzoff 1955-7-16 1968 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC141950  Potentilla anserina subsp. pacifica Peter Rubtzoff 1960-5-18 4386 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141951  Potentilla anserina subsp. pacifica Peter Rubtzoff 1960-5-18 4386 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141952  Potentilla anserina subsp. pacifica Peter Rubtzoff 1954-8-9 1659 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC516394  Prosartes hookeri A. A. Heller; H. E. Brown 1902-3-27 s.n. Sonoma Western base of Mt. Hood Comment
  UCD36685  Prunella vulgaris Beecher Crampton 1955-6-17 2934 Sonoma 0.5 mile south of Guerneville. Comment
  CDA40757  Prunella vulgaris subsp. lanceolata G. D. Barbe 1982-5-27 3617 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  SEINET12272809  Prunella vulgaris subsp. vulgaris A. P. Nelson 1961-1 646 1 C Sonoma At Pitkin Marsh Comment
  CDA40756  Prunella vulgaris var. lanceolata T. C. Fuller 1958-5-24 4001 Sonoma Vinehill District. 0 Comment
  UCD113174  Prunus cerasifera Frederica Bowcutt 1995-11-19 2066 a Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Along Sonoma Creek next to bridge between outdoor center and campground. Comment
  UCR254918  Prunus virginiana var. demissa Greg de Nevers 1998-6-2 11267 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC361620  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-31 182 Sonoma Magnolia Ave. in ditch - Petaluma Comment
  CAS-BOT-BC361621  Pseudognaphalium stramineum John H. Thomas 1976-6-17 18348 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma County, about 4 miles south of Gualala Comment
  CAS-BOT-BC361622  Pseudognaphalium stramineum Volney Rattan No date on label s.n. Sonoma Guerneville Comment
  CAS-BOT-BC80181  Pseudotsuga menziesii Irja Knight; Walter Knight 1963-9-15 291 Sonoma Los Alamos Rd, Santa Rosa Comment
  OBI35892  Pseudotsuga menziesii var. menziesii David J. Keil 1983-6-29 17207 Sonoma Ca. 10 mi SE of Ft. Ross along Hwy 1 Comment
  CAS-BOT-BC176177  Psilocarphus Peter Rubtzoff 1970-5-30 6250 Sonoma 5 miles north of Sears Point. Comment
  UCD166214  Psilocarphus Peter Rubtzoff 1970-5-16 6229 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC72688  Pteridium aquilinum John H. Thomas 1976-6-16 18290 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 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-BC371448  Pterostegia drymarioides Greg de Nevers 1998-6-8 11271 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along old road from Rogers Apple Orchard to creek. 400 Comment
  SEINET12121513  Pteryxia terebinthina var. californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -164 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC460850  Pyrola aphylla Volney Rattan 1877-6-14 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC460851  Pyrola aphylla Volney Rattan 1877-1-1 s.n. Sonoma Guerneville Comment
  JEPS22240  Quercus Rimo Bacigalupi 1958-11-23 6961 Sonoma 4 mi s Healdsburg (at junction of Arata Road and U.S. Highway 101, on property of Fred H. Clemens) Comment
  UC1002634  Quercus X chasei Milo S. Baker 1952-9-20 12618 Sonoma about 1.5 mi (air line) and 2.5 mi (by road) sw Cunningham Station (near the residence of Mt. Voigt) Comment
  UC1193302  Quercus agrifolia R. H. Neuns 1950-5-3 99 Sonoma 6 mi e Geyserville (Quad. 60B3) 426 Comment
  UC405367  Quercus agrifolia W. P. Taylor 1913-6-11 Sonoma Freestone Comment
  UCD45061  Quercus agrifolia John M. Tucker 1952-9-20 2625 Sonoma California Sonoma Co.; Voight Ranch, ca.1.25 mi. (airline) southwest of Cunningham, near stream, ca. 200 yards from farmhouse; small, young tree ca. 8-10 ft. tall. Comment
  UCD45101  Quercus agrifolia Frederica Bowcutt 1994-6-25 1909 b Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Gray Pine Trail > 1/2 mile N of trailhead on Meadow Trail, E of Sonoma Creek. Elev. 1460 ft. S-facing, 20 degree slope. 445 Comment
  RSA94624  Quercus agrifolia Peter Rubtzoff 1951-8-19 639 Sonoma near Forestville. Pitkin marsh Comment
  CHSC80756  Quercus chrysolepis Earl L. Core 1952-7-5 Sonoma Mt. St. Helena. Comment
  CAS-BOT-BC86004  Quercus douglasii Mrs. E. C. Sutliffe 1921-9-1 s.n. Sonoma Valley of the Moon, [Loudon's Place] Comment
  CAS-BOT-BC79572  Quercus dumosa John Thomas Howell 1946-3-31 21592 Sonoma Hills coast fo Sonoma Comment
  SEINET12030397  Quercus dumosa W. Knight, Knight, I.; Howell, J. T. 1984-1 5078 Sonoma 0.4mi up Cavedale Rd from State Tr-12 91 Comment
  SEINET12030398  Quercus dumosa W. Knight, Knight, I.; Howell, J. T. 1984-1 5104 Sonoma 2.8 mi up Cavedale Rd from Hwy-12 Comment
  CDA127  Quercus durata D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .283 Sonoma Cavedale Rd. 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
  CAS-BOT-BC94669  Quercus garryana Lewis S. Rose 1964-8-26 64066 Sonoma 6 miles N of Penngrove 365 Comment
  CAS-BOT-BC105478  Quercus kelloggii Walter Knight; Irja Knight 1964-11-15 780 Sonoma near new Johnson residence on Hood's Peak Comment
  SEINET3144234  Quercus kelloggii Unknown 1952-9-20 2620 Sonoma Voight Ranch, ca. 1.25 mi (airline) SW of Cunningham, along a lane running E from the Voight farmhouse Comment
  UC338622  Quercus kelloggii unknown Mar 1888 Sonoma near Healdsburg (Warner's ranch) Comment
  UCD46674  Quercus kelloggii Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 73 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Beginning of Hillside Trail. 381 Comment
  UC1042517  Quercus lobata Peter Rubtzoff 1951-11-24 836 Sonoma near Forestville (s of the Upper Marsh); Pitkin Marsh Comment
  JEPS37979  Quercus wislizeni W. L. Jepson 1893-9-23 Sonoma Mt. St. Helena 914 Comment
  UCD47654  Quercus wislizeni Neuns 1948-8-25 RHN 23 Sonoma Seven miles northeast of Annapolis, Section 19, T 11N, R 13W, Sonoma County. 548 Comment
  RSA0057955  Ranunculus aquatilis var. hispidulus Greg de Nevers 1998-4-28 11213 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Westernmost Double Ponds. 100 Comment
  JEPS55168  Ranunculus californicus Willis L. Jepson 1897-5-2 Sonoma Mt. St. Helena Napa River Basin Comment
  SEINET6908239  Ranunculus californicus W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Cove at Bodega Head. Comment
  UCD95956  Ranunculus californicus P. B. Kennedy 1914-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC378685  Ranunculus californicus var. californicus Mrs. H. C. Cantelow 1940-4-20 4250 Sonoma about 0.67 mi north of Bay Highway 1 Comment
  CAS-BOT-BC378686  Ranunculus californicus var. californicus John H. Thomas 1976-6-16 18272 Sonoma southern part of Sea Ranch, northwestern part of county, about 7 mi south of Gualala Comment
  SEINET3160888  Ranunculus californicus var. crassifolius L. S. Rose 1939-4-2 39051 Sonoma 3 mi. n. of Bodega Bay Comment
  RSA31774  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma On the bluff N of Bay, Bodega Bay. Comment
  CDA11315  Ranunculus lobbii G. F. Hrusa, A. Buckman, R. Gross 1995-4-1 12030 Sonoma North Coast Biodiversity Arena; Laguna de Santa Rosa. Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. Comment
  JEPS97529  Ranunculus lobbii R. D. Stone and W. B. Davilla 1985-3-13 654 Sonoma Shiloh Ranch Mark West Springs (2.3 airmiles NE of int. of Shiloh and Faught rds.; 0.6 airmiles WSW of); valley of sm. tributary in Mark West Creek drainage 259 Comment
  UC72749  Ranunculus lobbii Milo S. Baker 1898-5-7 603 Sonoma Glen Ellen Comment
  UCR72032  Ranunculus lobbii Peter Rubtzoff 1962-4-11 4796 Sonoma Americano Creek area just south of Bloomfield. Open pond near Petaluma(?)-Valley Ford Road Comment
  JEPS55144  Ranunculus muricatus W. L. Jepson 1911-4-30 4189 Sonoma near Glen Ellen; Sonoma Valley, Eldridge 60 Comment
  RSA281534  Ranunculus orthorhynchus var. bloomeri Michener, Bioletti 1893-04 s.n. Sonoma Kenwood Comment
  UC1057477  Ranunculus orthorhynchus var. bloomeri G. Thomas Robbins 1937-5-23 209 Sonoma about 10 mi w Santa Rosa; Vine Hill region, Pitkin Ranch Comment
  HSC100877  Reseda luteola Peter Warner 2011-6-16 216 Sonoma Jenner Headlands property, NE area on ridge between Jenner Gulch and Kidd Creek watersheds, ~400 m E from gate at boundary with the E & P Ranch, along 'east ridge' road. 413 Comment
  RSA6213  Rhamnus californica Merle Randall 1930-6-14 s.n. Sonoma Alamere Creek Comment
Read comments
Sep 20 2012
  UC73371  Rhamnus crocea Milo S. Baker 1898-4-23 26 Sonoma Santa Rosa Creek Canyon Comment
  CAS-BOT-BC55944  Rhamnus crocea G. DeNevers 1981-6-27 1695 Sonoma On a walk from Franz Valley Road up the main Creek draining the Devil's Kitchen and West along a chaparral ridge Comment
  UCD117873  Rhododendron columbianum J. M. Tucker; C. H. Lamoureux 1958-6-8 3409 Sonoma In the vicinity of State Highway 1, 6.1 miles (by road) north of Fort Ross. Comment
  CAS-BOT-BC56600  Rhododendron macrophyllum Mary P. Wells 1984-8-9 450 Sonoma Forest off north end of Deerfield Road, The Sea Ranch Comment
  UC22148  Rhododendron occidentale Edw. L. Greene 1894-6-7 Sonoma Mount St. Helena Comment
  UCD117916  Rhododendron occidentale Chris Bowen 1974-5-18 113 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC200334  Rhododendron occidentale var. occidentale Peter Rubtzoff 1957-5-11 3325 Sonoma Near Occidental-Graton road, 2.7 miles east of Occidental Comment
  CAS-BOT-BC200345  Rhododendron occidentale var. occidentale John H. Thomas 1955-5-22 5190 Sonoma Graton - Occidental Road, about 3.5 miles west of Occidental 60 Comment
  CAS-BOT-BC200346  Rhododendron occidentale var. occidentale Peter Rubtzoff 1951-6-17 277 Sonoma Northern half of Lower Marsh Comment
  CHSC114305  Rhododendron occidentale var. occidentale G. F. Hrusa 1989-5-8 7006 Sonoma North Coast Ranges. Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  RSA133726  Rhododendron occidentale var. occidentale John H. Thomas 1955-5-22 5190 Sonoma Graton-occidental Road about 3.5 miles west of Occidental. 61 Comment
  CAS-BOT-BC111863  Rhynchospora alba Peter Rubtzoff 1951-6-7 123 Sonoma Pitkin Marsh; Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC111864  Rhynchospora alba Peter Rubtzoff 1951-7-1 340 Sonoma Pitkin Marsh; Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC350939  Rhynchospora californica Peter Rubtzoff 1961-10-18 4763 Sonoma Cunningham Marsh. Comment
  RSA74058  Rhynchospora californica Milo S. Baker 1945-7-18 11112 Sonoma Pitkin Marsh, upper bog Comment
  CAS-BOT-BC111898  Rhynchospora capitellata John Thomas Howell; J. W. Stacey 1936-7-26 12677 Sonoma Pitkin Marsh; 5 miles north of Sebastopol. Comment
  CAS-BOT-BC111903  Rhynchospora capitellata Peter Rubtzoff 1951-9-2 726 Sonoma Pitkin Marsh; lower part of the upper marsh. Comment
  CAS-BOT-BC111904  Rhynchospora capitellata Peter Rubtzoff 1951-7-28 561 Sonoma Pitkin Marsh; lower part of the upper marsh. Comment
  RSA94267  Rhynchospora capitellata Peter Rubtzoff 1951-7-1 325 Sonoma Margin of Creek at Hwy 12, SE of Forestville Comment
  UC710441  Rhynchospora globularis var. globularis John Thomas Howell 1936-7-26 12678 Sonoma 5 mi n Sebastopol; Pitkin Marsh Comment
  UC963928  Rhynchospora globularis var. globularis Milo S. Baker 1947-6-26 11840 Sonoma ca. 1 mi. (air line) s.w. Cunningham Station (Cunningham Marsh); Cunningham Marsh Comment
  CAS-BOT-BC111930  Rhynchospora recognita John Thomas Howell 1945-7-18 21324 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111931  Rhynchospora recognita John Thomas Howell 1945-7-18 21324 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC111932  Rhynchospora recognita John Thomas Howell 1936-7-26 12678 Sonoma Pitkin Marsh, 5 miles n of Sebastopol. Comment
  UC75443  Ribes californicum Milo S. Baker 713 Sonoma near Santa Rosa Comment
  POM142001  Ribes californicum H. E. Brown, A. H. Heller 1902-3-10 6335 Sonoma [Unspecified] Comment
  UC353918  Ribes californicum Milo S. Baker 1928-2-18 2598 Sonoma nw Co<o?>per's Grove Comment
  CAS-BOT-BC93060  Ribes californicum var. californicum Greg de Nevers 1981-3-14 531 Sonoma Pepperwood Ranch. Pippindale Farm, 7 miles northwest of Santa Rosa, near Mark West Lodge. 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
  UC1182091  Ribes victoris var. minus C. R. Quick and Alice Quick 1935-3-10 171 Sonoma ne Kenwood (n from Sonoma, at foot of Mt. Hood); Mt. Hood, Canyon of Sonoma Creek Comment
  UC191399  Ribes victoris var. minus Michener and Bioletti 1892-7-8 629 a Sonoma Comment
  UC90662  Rigiopappus leptocladus Katharine Brandegee Sonoma Cloverdale Comment
  CAS-BOT-BC74699  Rorippa curvisiliqua Peter Rubtzoff 1958-8-16 3866 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC74708  Rorippa curvisiliqua Peter Rubtzoff 1965-8-16 5594 B 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
  SEINET11996225  Rorippa curvisiliqua H. K. Wagnon 1989-1 1853 Sonoma Spring Lake County Park, Santa Rosa 67 Comment
  CAS-BOT-BC74849  Rorippa palustris var. palustris Peter Rubtzoff 1973-8-25 7259 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC152667  Rosa californica Greg de Nevers; M. Harding 1981-7-11 1745 Sonoma Skovie, Pepperwood Ranch Comment
  CAS-BOT-BC152671  Rosa californica Peter H. Raven 1955-8-27 8758 Sonoma 3.2 mi. n. of Sears Point on State Route 37 Comment
  POM140210  Rosa californica A. A. Heller 1902-7-10 5678 Sonoma Santa Rosa Comment
  SD133982  Rosa californica Greg de Nevers 1986-11-7 8116 Sonoma Riebli Rd., NE of Santa Rosa 149 Comment
  UC1128557  Rosa gymnocarpa A. Lewis 1932-5-13 74 Sonoma Calabasas Creek Napa Quadrangle 457 Comment
  RSA96662  Rosa gymnocarpa Percy C. Everett, E. K. Balls 1954-10-20 20373 Sonoma 2 miles S of Lake-Sonoma Co. line. Road from Middletown to Mt. St. Helena. 701 Comment
  UCD166349  Rubus Peter Rubtzoff 1954-8-11 1691 Sonoma Guerneville Marsh. Comment
  UCD17812  Rubus leucodermis H. Olmo 8-10 May 1962 62 07 Sonoma California. Sonoma County: 7.4 miles from junction of road to Fort Ross, in Cazadero. Near entrance to Horseshoe Ranch. Comment
  CAS-BOT-BC147183  Rubus parviflorus Alice S. M. McKenzie 1981-2-23 19 Sonoma Calif. State Hwy. #1 at Fort Ross Gulch Comment
  CAS-BOT-BC147184  Rubus parviflorus Alice Eastwood; John Thomas Howell 1939-6-11 74 ? Sonoma Near [Triniti] Trinity P.O., Hood Mt. Range Comment
  UC12978  Rubus parviflorus J. Burtt Davy 1896-3-14 1679 Sonoma Fort Ross Comment
  UCD166415  Rubus parviflorus Peter Rubtzoff 1964-5-20 5311 Sonoma Brooks Gulch Marsh. Comment
  SEINET11912601  Rubus ulmifolius var. inermis H. K. Wagnon 1990-1 1976 Sonoma bank of Santa Rosa Creek by Brookwood Ave. bridge, Santa Rosa Comment
  CAS-BOT-BC157176  Rubus ursinus Peter Rubtzoff 1951-6-30 290 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  UCD17811  Rubus ursinus H. Olmo 8-10 May 1962 62 03 Sonoma California. Sonoma County: just north of Carmet along State Highway 1. Near Highway marker B14.58 and 100 yards up ravine from ocean shore. Comment
  CAS-BOT-BC422238  Rumex acetosella G. DeNevers 1981-5-30 1336 Sonoma Pepperwood Ranch. N of Hansel's corral. Comment
  UCD101121  Rumex crassus Ann F. Johnson 1979-6-19 s.n. Sonoma South of entrance road to Bodega Dunes State Park. Comment
  CAS-BOT-BC166969  Rumex crispus Peter Rubtzoff 1959-9-13 4268 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC433408  Rumex crispus John Thomas Howell 1955-8-6 30892 Sonoma 1 mile southeast of Bloomfield on road to Two Rock Comment
  RSA783832  Rumex obtusifolius Peter Rubtzoff 1962-10-23 5121 Sonoma Laguna de Santa Rosa area East of Graton, West of the Laguna. Between Occidental and Guerneville Roads. Comment
  UCD101462  Rumex pulcher Frederica Bowcutt 1994-6-12 1845 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. about 20 ft. Trail head for Pony Gate trail near kiosk and visitor center. 411 Comment
  UCD101469  Rumex pulcher M. Wiesendanger 1927-5-5 708 Sonoma location unknown. Comment
  POM252714  Rupertia physodes A. A. Heller 1902-6-11 5991 Sonoma Santa Rosa creek, E of Santa Rosa Comment
  UCSB45520  Rytidosperma penicillatum Roos, John 1957-7-2 Sonoma Miller Ridge Comment
  CAS-BOT-BC249309  Sagina Peter Rubtzoff 1956-9-14 2886 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC249311  Sagina Peter Rubtzoff 1953-5-30 1419 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC249312  Sagina Peter Rubtzoff 1960-5-18 4377 Sonoma Bodega Head Marsh. Comment
  UCD98456  Sagina procumbens Wm. E. Maddison 1991-5-9 s.n. Sonoma town of Windsor, 341 Windflower Ct. Comment
  CAS-BOT-BC445695  Sagittaria cuneata Peter Rubtzoff 1971-8-20 6641 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC445696  Sagittaria cuneata Peter Rubtzoff 1971-7-9 6594 Sonoma 5 mi. north of Sears Point. Comment
  UCD99149  Salicornia pacifica D. Sanchez-Mata; M. G. Barbour 1996-4-12 s.n. Sonoma S. Pablo Bay. S. Pablo National Wildlife Refuge. 5 Comment
  CAS-BOT-BC290708  Salix Peter Rubtzoff 1974-4-6 7358 Sonoma Forestville Marsh. Comment
  UCR249074  Salix Peter Rubtzoff 1971-9-1 6679 Sonoma Spring Creek Reservoir area, east of Santa Rosa 87 Comment
  UCR249348  Salix Peter Rubtzoff, J. E. Eckenwalder 1974-4-6 7347 Sonoma Kenwood Marsh 120 Comment
  RSA0015572  Salix Peter Rubtzoff 1973-10-10 7337 Sonoma Salmon Creek, 0.25 mi south of Freestone along creek canyon. Comment
  CAS-BOT-BC125946  Salix X rubens Milo S. Baker 1928-3-12 2734 b Sonoma Hawkins Residence Comment
  CAS-BOT-BC126269  Salix X sepulcralis Peter Rubtzoff 1952-5-31 1117 Sonoma Southern half of Lower Marsh Comment
  RSA94333  Salix babylonica Peter Rubtzoff 1952-3-23 905 Sonoma Southern half of Lower Marsh, margin of a thicket of damp ground Comment
  RSA534569  Salix bonplandiana Peter Rubtzoff 1955-4-30 1800 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC103942  Salix exigua Peter Rubtzoff 1954-7-4 1531 Sonoma Austin Creek Marsh Comment
  CAS-BOT-BC103941  Salix exigua H. K. Wagnon 1988-8-8 1798 Sonoma Confluence of Maacama Crk. and Russian River Comment
  UC453086  Salix exigua var. hindsiana W. A. Setchell 1931-7-25 7 Sonoma Russian R. at Bohemian Grove (near Monte Rio) 213 Comment
  UCD151172  Salix exigua var. hindsiana James A. Neilson Jr. 1974-3-3 3022 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  RSA0035349  Salix gooddingii Peter Rubtzoff 1955-4-9 1770 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC107799  Salix hindsiana Ball; Bracelin; Parks 1931-4-21 38 Sonoma Mayacama Creek, 25 km. northwest of Calistoga, in ravine above creek Comment
  CAS-BOT-BC106848  Salix hookeriana Mary P. Wells 1987-2-28 825 Sonoma West end of Moonraker Dr., The Sea Ranch Comment
  SEINET5633132 Image available Salix jepsonii A. A. Heller 1902-1 5044 Sonoma Foot of Mount Hood. Comment
  UC66157  Salix laevigata A. A. Heller 1902-4-18 5335 Sonoma on Russian R. near Windsor; Russian R. Comment
  UC66170  Salix laevigata A. A. Heller 1902-4-23 5348 Sonoma near Sonoma Sonoma Comment
  HSC19980  Salix lasiandra R. Spellenberg, A. Sylvester, D. Sutherland 1966-3-26 1339 Sonoma Along Sulphur Creek, 7 mi. W of Big Geysers Comment
  UC453095  Salix lasiandra subsp. lasiandra W. A. Setchell 1925-7-25 14 Sonoma Bohemian Grove near Monte Rio (Russian R.); Russian R. Comment
  UC66156  Salix lasiandra subsp. lasiandra A. A. Heller 1902-3-28 5174 Sonoma Santa Rosa Creek e. of Santa Rosa Comment
  CAS-BOT-BC128053  Salix lasiandra var. lasiandra Peter Rubtzoff 1955-4-30 1800 Sonoma Sonoma County Marshes - Stony Point Marsh Comment
  CAS-BOT-BC128054  Salix lasiandra var. lasiandra Peter Rubtzoff 1962-5-5 4806 Sonoma Fife Creek Marsh, open bank of Fife Creek - Sonoma County Marshes Comment
  CAS-BOT-BC107088  Salix lasiolepis Mary P. Wells 1986-2-2 736 Sonoma north of Wild Moor Reach, The Sea Ranch Comment
  CAS-BOT-BC107093  Salix lasiolepis Peter Rubtzoff 1964-8-26 5487 Sonoma Marsh 5 mi. northeast of Penngrove on Lichau Rd. 213 Comment
  CAS-BOT-BC107094  Salix lasiolepis Peter Rubtzoff; T. J. Crovello 1964-9-3 5497 Sonoma Brooks Gulch Marsh Comment
  UC453101  Salix lasiolepis W. A. Setchell 1931-7-31 18 Sonoma Bodega Bay; bottom of small canyon Comment
  UC453102  Salix lasiolepis W. A. Setchell 1931-7-31 19 Sonoma Bodega Bay Comment
  UCD111582  Salix lasiolepis Ball; Bracelin, Parks, and Parks 1931-4-21 34 Sonoma Maacama Creek, about 25 km. northwest of Calistoga. Comment
  RSA534505  Salix lasiolepis var. bigelovii Peter Rubtzoff, T. J. Crovello 1964-9-3 5498 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC128311  Salix lasiolepis var. lasiolepis G. DeNevers 1981-4-25 875 Sonoma Mark West Creek and Leslie Creek - Pepperwood Ranch Comment
  CAS-BOT-BC128312  Salix lasiolepis var. lasiolepis Peter Rubtzoff 1987-9-12 9849 Sonoma Russian river at Forest Hills, 5.5 mi. east of Guerneville Comment
  RSA534486  Salix lucida subsp. lasiandra Peter Rubtzoff, T. J. Crovello 1964-9-3 5496 Sonoma Bodega Harbor Marsh. Comment
  RSA534562  Salix melanopsis Peter Rubtzoff 1978-7-19 9237 Sonoma Russian River at Del Rio Beach. Ca 2.5 miles E of Healdsburg on So. Fitch Mtn. Rd. Comment
  UCD111783  Salix melanopsis W. A. Setchell 1931-8-1 s.n. Sonoma Bohemian Grove, near Monte Rio. Comment
  LA208920  Salix scouleriana Baker; Ball, Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental; on Occidental grade Comment
  POM219077  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 342 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  SD881  Salix scouleriana Baker, Ball, Bracelin, Crum 1931-5-9 342 Sonoma Two km east of Occidental, on Occidental Grade, arroyo bank Comment
  UC437360  Salix scouleriana W. P. Taylor 1913-6-11 Sonoma Freestone Comment
  UC524788  Salix scouleriana W. A. Setchell 1934-7-10 6 Sonoma Coast Hwy. n. of Fort Ross Comment
  CAS-BOT-BC126189  Salix scouleriana Walter Knight; Irja Knight 1964-2-27 558 Sonoma 2 mi. S. Gualala on [hiway] highway #1 Comment
  LA208908  Salix scouleriana Milo S. Baker; March 1933 7565 Sonoma at foot of O'Farrel Hill on Bodega Hwy Comment
  RSA304941  Salix sitchensis James R. Shevock 1971-1-30 625 Sonoma Along Russian River. 12 Comment
  UC1084371  Salix sitchensis G. Thomas Robbins 1937-3-26 41 Sonoma creek near Bodega Bay Bodega Bay Comment
  UC504049  Salix sitchensis W. A. Setchell 1933-5-6 Sonoma roadside between Monte Rio and Camp Meeker Comment
  UCD125322  Salvia columbariae Frederica Bowcutt 1996-5-24 2167 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Adobe Canyon Road W of kiosk. Comment
  CAS-BOT-BC225220  Salvia sonomensis Mrs. C. A. Burlingame 1921-5-30 s.n. Sonoma Sonoma Comment
  POM126746  Salvia spathacea M. S. Baker 1904-05 s.n. Sonoma Hills south of Ocean View. Comment
  CAS-BOT-BC235076  Sambucus racemosa var. racemosa Mildred Parks 1925-7-20 s.n. Sonoma Stewarts Point Comment
  SBBG5250  Sanicula arctopoides H. and M. Dearing 1939-5-14 3358 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  SEINET12122193  Sanicula crassicaulis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -261 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CDA12818  Sanicula laciniata G. F. Hrusa, R. Gross 1996-3-8 12652 Sonoma North Coast Biodiversity Arena; near summit on NE side of Chalk Hill. Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  UC353906  Sanicula laciniata Milo S. Baker 1927-3-27 2031 a Sonoma above House at Maple Glen Comment
  RSA94301  Santolina chamaecyparissus Peter Rubtzoff 1952-5-31 1129 Sonoma Dry, open ground bordering the upper marsh in the W. Comment
  UCR244592  Saponaria officinalis Peter Rubtzoff 1967-8-18 5849 Sonoma Banks of Russian River, 6 mi east of Guerneville 18 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
  POM142444  Saxifraga mertensiana A. A. Heller 1903-4-24 6616 Sonoma Woods near Cazadero. Comment
  CAS-BOT-BC436885  Saxifraga mertensiana Milo S. Baker 1924-4-16 69 a Sonoma McDonald to Sea Highway Comment
  CAS-BOT-BC441176  Saxifraga mertensiana Ella Dales Cantelow 1939-4-10 2603 Sonoma 7 mi. e. of Seaview Comment
  RSA52688  Scandix pecten-veneris I. L. Wiggins 1949-4-30 12059 Sonoma Roadside 6.8 miles east of Santa Rosa on road to Calistoga Comment
  CAS-BOT-BC283138  Schedonorus arundinaceus Catherine Best 1981-4-4 s.n. Sonoma North side of Bodega Bay Comment
  CAS-BOT-BC283140  Schedonorus arundinaceus G. De Nevers 1982-4-30 1966 Sonoma Philli's Lake, Pepperwood Ranch Comment
  CAS-BOT-BC311818  Schedonorus arundinaceus Peter Rubtzoff 1958-5-17 3674 Sonoma Laguna de Santa Rosa area east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC111435  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1966-7-23 1980 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC111436  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1959-6-20 4166 Sonoma Willow Creek Marsh. Open, wet, gravelly bank of Willow Creek. Comment
  UCD50086  Schoenoplectus acutus var. occidentalis P. G. Connors 1991-8-15 205 Sonoma In Clark Marsh with Typha latifolia. Comment
  RSA0019149  Schoenoplectus maritimus Peter Rubtzoff 1955-8-6 2021 Sonoma Bodega Harbor Marsh. Comment
  SD134065  Schoenoplectus mucronatus Peter Rubtzoff, Nancy Harrison 1974-9-7 7872 Sonoma Hinebaugh Creek in Rohnert Park, open wet ground of creek bed west of Commerce Blvd. crossing. Comment
  NY663862  Schoenoplectus mucronatus P. Rubtzoff 1979-7-15 9290 Sonoma Knights Valley. Pond at east side of Ida Clayton Road just north of its junction with Hwy. 128. Comment
  CAS-BOT-BC111798  Schoenoplectus pungens var. badius Peter Rubtzoff 1954-7-26 1558 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC111803  Schoenoplectus pungens var. badius Ella D. Cantelow 1941-4-14 3638 Sonoma Near mouth of Salmon Creek near the Pacific Ocean. Comment
  SEINET9307598  Scirpus Unknown 2000-3-7 20945 Sonoma Sonoma Comment
  UCR249040  Scirpus maritimus Peter Rubtzoff 1954-7-26 1557 Sonoma Lower Salmon Creek Marsh 6 Comment
  UCR255659  Scirpus microcarpus Greg de Nevers 1997-4-1 10925 Sonoma Santa Rosa, Pepperwood Ranch, 3450 Franz Valley Road 400 Comment
  UC841014  Scirpus pungens Marcus E. Jones, A. M. 1882-7-18 3526 Sonoma Duncan's Mills Comment
  SEINET12050505  Scoliopus bigelovii F. H. Utech 1988-1 88 -182 Sonoma 0.15 mi SE from East Ave jct with Bohemian Road on latter enroute to Occidental from Camp Meeker 140 Comment
  SEINET12058057  Scoliopus bigelovii F. H. Utech 1988-3-2 88 -013 Sonoma Stillwater Cove Park between CA 1 & Pacific Ocean, 4.5 mi N of Ft. Ross 10 Comment
  SEINET12058075  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -003 Sonoma ca 0.15 mi SE from East Avenue junction with Bohemian Rd on latter to Occidental from Camp Meeker 140 Comment
  CAS-BOT-BC240033  Scribneria bolanderi Catherine Best 1985-4-5 1068 Sonoma Stoetz Lane about 3 miles northeast of Occidental Comment
  CAS-BOT-BC240034  Scribneria bolanderi Leo Whitney 1935-4-14 2257 Sonoma Near Occidental Comment
  UCR249343  Scrophularia californica Peter Rubtzoff 1958-5-17 3675 Sonoma Laguna de Santa Rosa, east of Cunningham [Rd.] (near Llano Road) 31 Comment
  RSA0022476  Scrophularia californica Peter Rubtzoff 1964-5-20 5307 Sonoma Bodega Bay Marsh. Comment
  CDA40963  Scutellaria antirrhinoides T. C. Fuller 1958-5-24 4017 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  SEINET10869909 Image available Scutellaria antirrhinoides A. Arthur Heller 1902-6-27 Heller 5786 Sonoma West of Windsor near Russian River Comment
  POM188175  Scutellaria californica Marcus E. Jones 1931-7-5 28823 Sonoma West of Cloverdale. Comment
  UCD125503  Scutellaria californica Frederica Bowcutt 1994-6-25 1904 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. Meadow Trail at Gray Pine Trailhead. Comment
  CAS-BOT-BC418400  Sedum spathulifolium Alice Eastwood 1915-6-6 4695 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC63942  Sedum spathulifolium John Thomas Howell 1930-6-8 5262 Sonoma 1 mile east of Bodega Bay Comment
  CAS-BOT-BC63938  Sedum spathulifolium F. G. Krauss 1895-5-6 s.n. Sonoma Mountans near Franz and Knights Valleys Comment
  OBI59736  Selaginella wallacei S. F. Blake 1927-8-28 10351 Sonoma Near Petrified Forest, near Santa Rosa Comment
  SEINET10471225  Selaginella wallacei A. Arthur Heller 1902-3-10 Heller 5024 Sonoma Hills two miles east of Santa Rosa. Comment
  UC150854  Selaginella wallacei C. F. Baker 1903-4-20 2746 Sonoma Mt. St. Helena Comment
  RSA177961  Senecio greenei R. F. Thorne 1965-4-20 34380 Sonoma Charles Newman's place up Los Alamos Rd, on Rincon Ridge 396 Comment
  UCR279612  Senecio minimus Peter Rubtzoff 1955-9-24 2150 Sonoma Duncan Mills Marsh, upper portion of marsh 9 Comment
  SJSU14233  Senecio minimus C. W. Sharsmith 1989-5-14 9090 Sonoma Salt Point State Park c. 10 mi NW of Fort Ross Comment
  CAS-BOT-BC364679  Senecio vulgaris John H. Thomas 1976-6-15 18312 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  SEINET3876427  Sequoia sempervirens Ralph R. Wilson 1939-7-25 438 Sonoma Ft. Ross. 1/2 mile from ocean.; 0 Comment
  UCD135186  Sequoia sempervirens Chris Bowen 1974-6-1 142 Sonoma Near Sorcer's Wood, Unit 30-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA264737  Sherardia arvensis Peter Rubtzoff 1971-5-8 6453 Sonoma Intermittent lake off W side of Hwy 1. 0.7 miles SE of Salmon Creek Crossing. Comment
  UCR275239  Sidalcea Peter Rubtzoff 1976-5-30 8578 Sonoma North Coast Range, east side of Hwy 12, c. 0.75 mile south of Kenwood (0.9 mile south of Warm Springs Road junction) 127 Comment
  CAS-BOT-BC540823  Sidalcea Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh. Comment
  RSA0020349  Sidalcea Peter Rubtzoff, Vanette Bunyan, Nancy Harrison, Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh. Comment
  UC108868  Sidalcea diploscypha Katharine Brandegee 1905-6-8 Sonoma between Santa Rosa Sevastopol; bet Santa Rosa and Sevastopol Comment
  CAS-BOT-BC205608  Sidalcea malviflora Walter Knight; Irja Knight 1964-2-27 534 Sonoma Hiway 1 - Rocky Point Comment
  UC1012940  Sidalcea malviflora subsp. laciniata C. L. Hitchcock 1952-6-4 19582 Sonoma on road to Petaluma about 2 mi e Sebastopol; e of Sebastopol on road to Petaluma Comment
  CAS-BOT-BC178689  Silene Peter Rubtzoff 1983-8-28 9678 Sonoma Austin Creek ca. 0.5 mile north of Hwy 116 on Cazadero Road. Comment
  RSA800081  Silene Peter Rubtzoff 1962-6-21 4935 Sonoma Laguna de Santa Rosa area NE of Graton, E of Laguna Road. Comment
  UC1137921  Silene californica H. S. Yates 1934-4-22 3863 Sonoma near Petrified Forest; Calistoga Quad., near Petrified Forest Comment
  UCD98632  Silene gallica Botany 102 Students 1993-5-8 280 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge. Bald Mountain Trail less than 1 air mile S of Red Mountain, N of Sonoma Creek. Comment
  SEINET4856109  Silene grandis Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point. 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
  UCD135848  Silybum marianum Gerry North 1993-4 55 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. On Vista trail 1/2 mile NE of fork with Bald Mountain trail. Sugarloaf Ridge State Park. 556 Comment
  UCD115677  Sisymbrium officinale Erik Beever; Valerie Bullock 1993-5-8 206 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. Pony Gate trail. 365 Comment
  SBBG1135  Sisyrinchium bellum H. and M. Dearing 1939-5-14 3371 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  SEINET7040133  Sisyrinchium bellum A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  RSA239773  Sisyrinchium californicum Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1100 Sonoma Fort Ross State Park. Comment
  CAS-BOT-BC164701  Solanum Peter Rubtzoff 1953-11-1 1433 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC166973  Solanum Peter Rubtzoff 1958-9-20 3994 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 miles north Guerneville Road). Comment
  CAS-BOT-BC166974  Solanum Peter Rubtzoff 1958-8-9 3837 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  SBBG33688  Solidago spathulata T. L. Secrest 1948-7-7 Sonoma coast, Sonoma County [no specific locality] Comment
  SDSU534  Solidago spathulata subsp. spathulata D. F. Howe 1962-7-29 3350 Sonoma 12 miles north of Jenner on #1. 91 Comment
  CAS-BOT-BC365257  Solidago velutina subsp. californica unspecified 1898-8-1 s.n. Sonoma San Raphael [Rafael] Comment
  CAS-BOT-BC164029  Sonchus Peter Rubtzoff 1955-8-20 2062 Sonoma Bodega Harbor Marsh. Comment
  RSA788954  Sonchus asper subsp. asper Peter Rubtzoff 1955-9-24 2153 Sonoma Duncans Mills Marsh. Comment
  UCD133992  Sonchus asper subsp. asper Frederica Bowcutt 1996-5-24 2171 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Adobe Canyon Road near entrance. Comment
  CAS-BOT-BC374743  Sonchus oleraceus Mary P. Wells 1985-9-9 614 Sonoma At Friends House, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC374744  Sonchus oleraceus D. E. Breedlove 1983-5-9 58696 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD167343  Sorghum halepense James Neilson 1981-5-28 4034 Sonoma Mayacmas Mountains.1/2 mi. west Big Geysers. (Location information obtained from Neilson 4033 indicates that the location is at lookout point along road fill over culvert 1/2 mi. west Big Geysers. Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1099917  Sparganium emersum var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-1 1109 Sonoma 2 mi e Stewart's Point (on road to Beyserville) Comment
  CAS-BOT-BC236634  Spartina foliosa J. W. Congdon 1880-10-1 s.n. Sonoma Petaluma Comment
  UCD99162  Spergula arvensis Mary M. Hektner 1974-7-20 156 A Sonoma near Shell Beach; Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR275244  Spergularia Peter Rubtzoff 1971-7-23 6614 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 70 Comment
  CAS-BOT-BC251315  Spergularia Peter Rubtzoff 1959-6-20 4146 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC258926  Spergularia Peter Rubtzoff 1965-8-29 5625 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD99235  Spergularia marina S. F. Bailey 1951-6-1 s.n. Sonoma Skagg's Island, north of Plack Point cutoff (Highway 48). Comment
  UCR254753  Spiranthes porrifolia Peter Rubtzoff 1969-6-27 6103 Sonoma 6.5 miles NE of Penngrove on Lichau Road 427 Comment
  CAS-BOT-BC500698  Stachys Peter Rubtzoff 1959-5-30 4069 Sonoma Freestone Marsh Comment
  CAS-BOT-BC502053  Stachys Peter Rubtzoff 1963-10-5 5295 Sonoma Brooks Gulch Marsh Comment
  CAS-BOT-BC502054  Stachys Peter Rubtzoff 1964-5-20 5303 Sonoma Brooks Gulch Marsh Comment
  UC25968  Stachys ajugoides var. rigida Harley P. Chandler 1900-5-25 Sonoma Bodega Bay Comment
  UC726646  Stachys ajugoides var. rigida A. A. Heller 1938-5-14 15084 Sonoma e Bodega Bay (along State Highway #1) Comment
  POM252831  Stachys emersonii A. A. Heller 1938-5-14 s.n. Sonoma Just east of Bodega Bay. Comment
  UCD151096  Stachys rigida James A. Neilson Jr. 1973-6-3 2974 Sonoma Mayacmas Mountains. The Geysers. Site I. In Geyser Canyon. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  SEINET12326113  Stachys rigida var. quercetorum W. Knight, Knight, I. 1983-1 4718 Sonoma Sonoma Montain Road #2 along creek near Wake Robin Lodge on old Jack London property Comment
  RSA800606  Stellaria Peter Rubtzoff 1967-8-22 5852 Sonoma SE of Lower Salmon Creek Marsh Comment
  UCD99339  Stellaria borealis subsp. sitchana Mary M. Hektner 1974-6-27 77 8 Sonoma Unit 18 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC405133  Stellaria nitens D. E. Breedlove 1983-4-11 58691 Sonoma Pepperwood Ranch W of Knights Valley. Comment
  UC1299292  Stephanomeria elata Freed W. Hoffman 1946-9-26 579 Sonoma road to Layton Mine, Austin Creek North Coast Ranges, Austin Creek Comment
  CAS-BOT-BC375317  Stephanomeria exigua subsp. coronaria G. DeNevers 1981-6-15 1555 Sonoma Pepperwood Ranch. Along road from Bald Hills to Franz Valley Creek Comment
  NY431575  Stipa pulchra A. A. Heller 1902-4-9 5252 Sonoma 3 miles south of Healdsburg Comment
  OBI35891  Stipa pulchra David J. Keil 1983-6-29 17205 Sonoma Ca. 10 mi SE of Ft. Ross along Hwy 1 Comment
  RSA74473  Streptanthus barbiger Milo S. Baker 1947-7-15 11868 Sonoma 2 miles NE of Occidental, along Harrison Grade Comment
  UC708787  Streptanthus barbiger G. L. Stebbins Jr. and California Botanical Society 1946-5-19 3645 Sonoma 3 mi ne Occidental Comment
  UCD115943  Streptanthus barbiger Roger Raiche 1984-6-10 RR 40212 Sonoma 8.6 miles west on Hot Springs Road from its origin at Rt. 101 near Cloverdale, across from Dry Creek. 198 Comment
  UC956618  Streptanthus brachiatus subsp. brachiatus Freed W. Hoffman 1949-7-6 2871 Sonoma e. Pine Flat (ridge near contact Mine, on Sonoma-Lake co. line); North Coast Ranges 914 Comment
  CAS-BOT-BC87229  Streptanthus glandulosus subsp. glandulosus H. N. Bolander 1864-4-1 3944 Sonoma At the Geysers. Comment
  CAS-BOT-BC87236  Streptanthus glandulosus subsp. hoffmanii A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero. Comment
  JEPS26976  Streptanthus glandulosus subsp. secundus W. L. Jepson 1904-5-29 2430 Sonoma Mark West Creek Comment
  JEPS83491  Streptanthus glandulosus subsp. secundus Jack and Betty Guggolz 1986-4-23 863 Sonoma w-facing steep bank on Kelly Rd 0.2 mi w junction with Rockpile Road (ca 15 mi nw of Healdsburg) Comment
  UC70399  Streptanthus glandulosus subsp. secundus Milo S. Baker 1899-6-28 Sonoma near Duncan's Mills; Russian River Comment
  UC985953  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-17 2343 Sonoma Red Slide at headwaters of creek North Coast Ranges, East Austin Creek Comment
  UC985966  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-16 2346 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  UC985967  Streptanthus glandulosus subsp. secundus Freed W. Hoffman April, 1948 2701 Sonoma Gabe's Rock North Coast Range, Poole Ridge (1 mi nw of Guerneville) Comment
  UC1492747  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1951-5-24 3861 Sonoma Blue Knoll North Coast Ranges, Ungewitter Ranch (w of Cazadero) Comment
  UC1492784  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-27 3363 Sonoma near Porter Creek; North Coast Ranges, Fred McMurray Ranch Comment
  CAS-BOT-BC87295  Streptanthus glandulosus subsp. sonomensis Peter Rubtzoff 1952-6-3 1141 Sonoma South slopes of Fitch Mountain, near Healdsburg. Comment
  SEINET12006991  Streptanthus heterophyllus Unknown 1936-1 13416 Sonoma near Healdsburg Comment
  UC1292741  Streptanthus morrisonii Freed W. Hoffman 1946-9-26 1025 Sonoma Layton Mine, Austin Creek North Coast Ranges Comment
  UCD167021  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
  UCD167364  Streptanthus morrisonii James Neilson Date Unknown 4058 Sonoma Creek northeast of Layton Mine buildings. (Exact location unknown. Coordinates estimated by label maker.) Comment
  NY185750  Streptanthus morrisonii subsp. hirtiflorus F. W. Hoffman 1948-6-17 2344 Sonoma North Coast Ranges; above Dorr's Cabin, headwaters of East Austin Creek Comment
  UC1292738  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1950-6-17 3380 Sonoma Layton Mine, Austin Creek Comment
  UC10916  Streptanthus tortuosus var. suffrutescens F. T. Bioletti 1893-6-1 Sonoma Hood's Peak Comment
  UC10917  Streptanthus tortuosus var. suffrutescens F. T. Bioletti 1893-6-1 Sonoma Hood's Peak 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
  RSA799983  Symphoricarpos Peter Rubtzoff 1961-9-6 4735 Sonoma Laguna de Santa Rosa area northeast of Graton. Comment
  RSA748  Symphoricarpos albus var. laevigatus E. R. Johnson 1928-8-22 s.n. Sonoma Russian River, 1/2 mile E of Cloverdale Comment
  CAS-BOT-BC97818  Symphyotrichum chilense Peter Rubtzoff 1951-9-15 763 Sonoma open ground bordering the central part of the Pitkin Marsh Comment
  CAS-BOT-BC97826  Symphyotrichum chilense J. W. Congdon 1880-9-12 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC98566  Symphyotrichum lentum F. G. Krauss 1893-10-8 s.n. Sonoma Mountains, Krauss Ranch Comment
  CDA10942  Synthyris cordata G. F. Hrusa, G. L. Stebbins 1994-3-28 11700 Sonoma North Coast Biodiversity Arena; Along Austin Creek, 4.3 m. Adjacent to East Austin Cr. Rd. on E side of Creek. 0 Comment
  JEPS16442  Synthyris reniformis John G. Lemmon 1888-11-19 Sonoma near Healdsburg Comment
  SEINET10575096  Tamarix parviflora John F. Gaskin 1998-7-2 Gaskin 78 Sonoma Hyde and Pearson Road, E 150 yds to corner. Comment
  UCD102952  Tellima grandiflora Linda A. Bell 1975-5-18 155 Sonoma State Hwy 116, 3 miles west of Guernville. 21 Comment
  UCD106681  Thermopsis californica var. californica Mary M. Hektner 1975-6-3 200 Sonoma Monarch Glen, Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC66825  Thysanocarpus curvipes P. B. Kennedy 1920-5-29 s.n. Sonoma Russian River. Comment
  CHSC57363  Thysanocarpus curvipes var. elegans Shelly A. Kirn 1991-3-28 7 Sonoma Ca. 50 yds e of Hwy 101, 0.5 mi n of Cloverdale. 97 Comment
  CAS-BOT-BC67341  Thysanocarpus radians Michener; Bioletti 1893-4-25 s.n. Sonoma Kenwood. Comment
  CAS-BOT-BC447597  Tiarella trifoliata subsp. unifoliata M. Thomas 1877-6-14 s.n. Sonoma Guerneville Comment
  UC419740  Tiarella trifoliata var. unifoliata Mrs. H. P. Bracelin 1930-7-27 21 Sonoma one mi n Fort Ross; n of Fort Ross Comment
  SD131965  Tonella tenella Harry K. Roberts 1968-4-6 Sonoma North side of Mt. Jackson, 1I(c) air-line miles n.ne. of Rio Nido, on road to lookout, ca. 1 mile n.e. of Sonoma Mercury Mine 320 Comment
  UCD128172  Torilis nodosa Frederica Bowcutt 1984-6-23 436 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg. North of Gerstle Cove approx. 1/4 mile. W of Highway 1. 15 Comment
  CAS-BOT-BC81459  Torreya californica Mary P. Wells 1984-7-21 374 Sonoma Hot Spot (near So. Fork of Gualala River) The Sea Ranch Comment
  SEINET7295150 Image available Torreyochloa pallida var. pauciflora A. S. Hitchcock 1908-1 2702 Sonoma Sherwood Comment
  HSC3136  Toxicodendron diversilobum S. N. Wiemeyer 1962-4-13 8 Sonoma 3/4 mi. E of County Hospital along Chanate Rd. 122 Comment
  UCR265117  Toxicoscordion fontanum Ann Howald 2015-1-30 3311 Sonoma North Coast, Coastal terrace, c. 3 miles southeast of Del Mar Point 64 Comment
  JEPS128177  Toxicoscordion fremontii Roger Raiche 2001-5-17 024 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  CAS-BOT-BC157684  Tragopogon Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7807 Sonoma Kenwood Marsh. Comment
  SEINET9299121  Tragopogon porrifolius Unknown 1990-5-10 Sonoma Grassy meadow edge With Brassica, Plantago, Raphanus Comment
  SDSU11972  Triantha occidentalis subsp. occidentalis D. F. Howe 1972-6-27 4842 Sonoma Near Pitkin Marsh 46 Comment
  CAS-BOT-BC519553  Triantha occidentalis subsp. occidentalis Peter Rubtzoff 1951-7-28 566 Sonoma Sonoma Comment
  CAS-BOT-BC519554  Triantha occidentalis subsp. occidentalis John Thomas Howell 1945-7-18 s.n. Sonoma Sonoma: Pitkin Marsh Comment
  UC32606  Trichostema lanceolatum Alice King Sep 1896 Sonoma Healdsburg Comment
  SEINET6165684 Image available Trichostema lanceolatum Unknown 1982-7-1 s.n. Sonoma 2 mi N.E. of Occidental Sonoma Co. Comment
  UC762794  Trichostema laxum R. F. Hoover 1942-7-13 5917 Sonoma 3 mi S of Monte Rio Comment
  UCD67622  Trichostema laxum D. Sanchez-Mata; P. Rodriguez Rojo 1996-8-9 s.n. Sonoma Camp Meeker-Monte Rio. Dutch Bill Creek. Open cypress forests (Cupressus sargentii) in serpentine and andesitic rocks. 800 Comment
  CHSC26442  Trientalis latifolia P. Kunst 1977-4-12 30 Sonoma 170 Comment
  UC750809  Trientalis latifolia Charles B. Heiser Jr. 1946-5-19 1759 Sonoma Russian River near Duncan Mills; Russian River Comment
  CAS-BOT-BC173639  Trifolium Peter Rubtzoff 1974-5-26 s.n. Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  JEPS128277  Trifolium Roger Raiche 2005-4-22 013 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA784985  Trifolium Peter Rubtzoff 1974-4-17 7373 Sonoma Upper Green Valley Marsh. Comment
  RSA784994  Trifolium Peter Rubtzoff 1974-5-25 7464 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC166769  Trifolium Peter Rubtzoff 1974-5-18 7420 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173533  Trifolium Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC173580  Trifolium Peter Rubtzoff 1976-5-30 8555 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC173629  Trifolium Peter Rubtzoff 1974-5-18 7430 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  JEPS117086  Trifolium albopurpureum Peter Warner 2010-4-15 131 Sonoma Jenner Headlands, Sonoma Land Trust property, approx. 250 m E of primary access road (Willig Ave. extension), approx. 0.8 km N of Jenner village, in ultramafic grassland, near power line overhead. Comment
  OBI12721  Trifolium amoenum Robert F. Hoover 1969-1 Sonoma Comment
  UC16413  Trifolium amoenum Harley P. Chandler 1900-5-25 687 Sonoma Bodega Comment
  UCD165149  Trifolium barbigerum Peter Rubtzoff 1974-5-18 7427 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD165157  Trifolium barbigerum Peter Rubtzoff 1974-5-19 7441 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  POM21441  Trifolium bifidum var. decipiens A. A. Heller, H. E. Brown, A. H. Heller 1902-4-15 7339 Sonoma Santa Rosa. Comment
  UCSC006095  Trifolium buckwestiorum Randall Morgan 1996-5-18 2953 Sonoma Seed from near Two Rock Comment
  CHSC33018  Trifolium depauperatum var. depauperatum Jane A. Rogers 1979-4-14 7 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  UC16476  Trifolium depauperatum var. depauperatum W. H. Brewer 1862-4-18 980 Sonoma near Sonoma (in a field) Comment
  RSA0079933  Trifolium fragiferum Greg de Nevers 1997-7-24 11071 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Double Ponds and Turtle Pond. 100 Comment
  UCD109024  Trifolium fucatum P. B. Kennedy 1929-5-24 10295 Sonoma Between Cazadera and Seaview. Comment
  RSA78622  Trifolium grayi J. T. Howell 1943-5-10 17990 Sonoma 1 mile north of Windsor Comment
  UCR218645  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2010-6-4 16210 Sonoma North Coast Ranges, Mark West Springs Road, 1.7 rd. miles east of US-101, 2.5 air miles NE (75 deg. ) of Fulton 63 Comment
  UCSC009060  Trifolium hydrophilum Randall Morgan 1995-5-25 2743 Sonoma Viansa Vineyard Comment
  UC630830  Trifolium macraei P. B. Kennedy 1915-5-28 Sonoma Del Mar Comment
  UC1177072  Trifolium microcephalum Peter H. Raven 1951-4-22 2782 Sonoma e Agua Caliente (hills) Comment
  UC494183  Trifolium microcephalum H. E. and S. T. Parks 1930-5-9 612 Sonoma Knights Valley Comment
  UC85321  Trifolium obtusiflorum Michener and Bioletti 1895-6-1 Sonoma Kenwood Comment
  RSA0079934  Trifolium repens Greg de Nevers 1998-6-20 11289 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Rogers Apple Orchard. 100 Comment
  UCD109400  Trifolium variegatum Jennifer Bury; Peggy Herzog 1993-5-8 277 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 396 Comment
  UCD161358  Trifolium variegatum James A Neilson Jr. 1976-5-5 3717 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1/2 mile north of the Geysers Road. Aidlin-Gloved Leasehold, ca. 300 yards uphill from well site #1. (Coordinates and location estimated by label maker.) Comment
  UCD35304  Trifolium variegatum Beecher Crampton 1955-4-5 2405 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  UCD109446  Trifolium variegatum var. major P. B. Kennedy 1915-6-1 s.n. Sonoma Del Mar. Comment
  UC16754  Trifolium willdenovii W. H. Brewer 1862-4-17 981 Sonoma Sonoma Valley Comment
  CAS-BOT-BC451945  Triglochin maritima Lewis S. Rose 1964-6-3 64055 Sonoma N. end of Bodega Bay 1 Comment
  CAS-BOT-BC451946  Triglochin maritima J. W. Congdon 1880-4-13 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC451982  Triglochin striata Peter Rubtzoff 1973-9-15 7328 Sonoma Lower Salmon Creek Marsh. Slough just east of Hwy. 1. Comment
  CAS-BOT-BC520853  Trillium albidum Greg de Nevers 1993-4-6 10361 Sonoma Pepperwood Ranch Natural Preserve: 3450 Franz Valley Road 304 Comment
  UCD139897  Trillium albidum M. Wiesendanger 1927-5-5 272 Sonoma Kenwood Springs. Comment
  CAS-BOT-BC520841  Trillium albidum J. D. Freeman; R. F. Freeman 1967-5-6 574 Sonoma Steep moist bluff at confluence of two ravines on Skaggs Springs Rd. about 10 mi. W of its Jct. with Dry Ck. Rd.; W of Geyserville Comment
  CAS-BOT-BC520842  Trillium albidum G. DeNevers 1982-4-30 1956 Sonoma Pepperwood Ranch: Riparian area at Mark West Creek and Leslie Creek Comment
  CAS-BOT-BC376369  Trillium chloropetalum Greg de Nevers 1993-3-24 10332 A Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Weimar Canyon. 400 Comment
  SEINET10534311  Trillium ovatum David B. Dunn, Melvin L. Conrad; Katherine L. Morris 1973-6-9 Dunn 20705 Sonoma 2 mi NW of Forestville on Hwy 116, Douglas Fir forest with some Oaks. 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
  JEPS3418  Triphysaria eriantha subsp. rosea Eleanor Armstrong 1933-4-15 775 Sonoma Bodega Bay; near ocean 6 Comment
  CHSC20133  Triphysaria versicolor subsp. faucibarbata D. Joley 1975-4-24 300 Sonoma Junction of Rainsville and Liberty Rds, Petaluma. Comment
  JEPS75301  Triphysaria versicolor subsp. faucibarbata John E. Moeur 1971-4-17 4 Sonoma along Rainville Road 8 mi nw Petaluma Comment
  UC185474  Triphysaria versicolor subsp. faucibarbata Katharine Brandegee May 1905 Sonoma Sebastopol Comment
  UC726328  Triphysaria versicolor subsp. faucibarbata A. A. Heller 1940-4-22 15555 Sonoma in a grassy field at Windsor Comment
  JEPS15319  Triphysaria versicolor subsp. versicolor A. A. Heller 1928-5-14 15090 Sonoma just e of the town Bodega Comment
  JEPS15322  Triphysaria versicolor subsp. versicolor H. S. Yates 1934-4-21 3793 Sonoma near Bodega; Sebastopol Quad., near Bodega Comment
  UC726148  Triphysaria versicolor subsp. versicolor A. A. Heller 1940-5-17 15630 a Sonoma back of the bluff n of the town of Bay Bodega Bay; , Bodega Bay Comment
  UC651086  Trisetum canescens P. B. Kennedy June 1915 Sonoma Del Mar; n Sonoma County Comment
  UCD93496  Trisetum canescens Beecher Crampton 1955-6-17 2931 Sonoma Sonoma County, 3.3 miles west of Forestville, along State Highway 12. Comment
  CAS-BOT-BC522358  Triteleia hyacinthina Peter Rubtzoff 1971-5-8 6439 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mile west of Arnold Drive Comment
  CAS-BOT-BC527040  Triteleia laxa J. W. Congdon 1880-4-1 111 Sonoma Petaluma Comment
  CAS-BOT-BC527041  Triteleia laxa L. R. Abrams 1920-7-9 7636 Sonoma Stewarts Point Comment
  CAS-BOT-BC527042  Triteleia laxa John H. Thomas 1976-6-16 18330 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  RSA540084  Triteleia tubergenii Peter Rubtzoff, Rimo C. Bacigalupi 1971-6-10 6526 Sonoma South side of W Railroad Ave between Hwy 101 and Stony Point Road Comment
  UCD93312  Triticum aestivum Frederica Bowcutt 1997-7-19 2188 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 road just SW of group campground. Adobe Canyon near trailhead to Meadows Trail. 396 Comment
  RSA540052  Typha latifolia Peter Rubtzoff 1964-8-20 5459 Sonoma Americano Creek area. On Petaluma-Valley Ford Road near Bloomfield. Comment
  CAS-BOT-BC91281  Umbellularia californica Walter Knight; Irja Knight 1963-9-15 272 Sonoma Los Alamos Road. Santa Rosa. Comment
  SEINET5339110  Umbellularia californica L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa. Comment
  UCD136928  Uropappus lindleyi Frederica Bowcutt 1994-5-21 1820 Sonoma About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa and 1.5 air miles NE of Kenwood. About 18 air miles northwest of Napa. Along meadow trail approximately 3/4 mile from trailhead. 411 Comment
  UCD111537  Urtica dioica subsp. gracilis P. G. Connors 1991-7-2 191 Sonoma Bodega Head and Dunes. Near Bodega Harbor, on Bodega Head. Comment
  SEINET5887385 Image available Urtica dioica subsp. gracilis L. S. Rose 1964-1 64056 Sonoma Ca 5 ft end of Bodega Bay Comment
  UC848741  Urtica dioica subsp. holosericea Marcus E. Jones, A. M. 1882-7-17 3483 Sonoma Duncan Mills Comment
  UC848742  Urtica dioica subsp. holosericea Marcus E. Jones, A. M. 1882-7-17 3483 Sonoma Duncan Mills Comment
  RSA155531  Urtica dioica subsp. holosericea L. S. Rose 1960-9-14 60095 Sonoma Laguna de Santa Rosa, 4 mi E of Graton. 15 Comment
  CAS-BOT-BC76169  Vancouveria planipetala M. S. Baker 1899-5-6 s.n. Sonoma Green Valley, near Gallagher's. Comment
  CAS-BOT-BC135765  Veratrum fimbriatum John Thomas Howell 1931-9-26 8094 Sonoma 7 miles north of Fort Ross Comment
  CAS-BOT-BC135766  Veratrum fimbriatum Hugh Leech 1964-10-12 s.n. Sonoma Confluence of Gualala River and Wheatfield Branch Comment
  CAS-BOT-BC157957  Verbascum Peter Rubtzoff 1954-7-27 1564 Sonoma [Guernerville] Guerneville Marsh Comment
  RSA790898  Verbascum Peter Rubtzoff 1954-7-27 1564 Sonoma Guernerville Marsh. Comment
  POM64648  Verbena lasiostachys var. lasiostachys A. A. Heller 1902-6-27 5785 Sonoma West of Windsor near Russian river. Comment
  CAS-BOT-BC166927  Veronica Peter Rubtzoff 1969-6-14 6082 Sonoma Vernal pool 6.5 mi. northeast of Penngrove on Lichau Road. 426 Comment
  CAS-BOT-BC262797  Veronica Peter Rubtzoff 1972-5-25 6752 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC176391  Veronica americana Peter Rubtzoff 1954-6-6 1461 Sonoma Guerneville Marsh. Comment
  UCD148335  Veronica americana Peter Rubtzoff 1954-8-13 1711 Sonoma Bodega Head Marsh. Comment
  UCR279619  Veronica peregrina subsp. xalapensis Peter Rubtzoff 1962-5-6 4809 Sonoma Guerneville Marsh Comment
  RSA0021066  Veronica peregrina subsp. xalapensis Peter Rubtzoff 1969-5-11 6037 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road. Comment
  UCD165161  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh area. Comment
  JEPS86772  Vicia lathyroides Jack and Betty Guggolz 1990-6-11 1062 Sonoma about 11 km e Healdsburg (on the Ferrari-Carano Ranch) 228 Comment
  UCD108795  Vicia lutea Frederica Bowcutt 1996-5-19 2152 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 Mountain. Near trailhead for Lower Bald Mountain. Above Group campground. 472 Comment
  UC17022  Vicia sativa W. H. Brewer 1862-4-18 965 Sonoma near Sonoma Comment
  RSA29239  Vicia sativa Joseph A. Ewan 1935-5-13 9245 Sonoma 2.5 miles west of Santa Rosa: Sebastopol Road. Comment
  RSA0057958  Vicia villosa subsp. villosa Greg de Nevers 1998-4-27 11205 Sonoma Calistoga Road at Alpine Road, along Mark West Creek. 121 Comment
  UC1084480  Viola adunca G. Thomas Robbins 1938-4-15 253 Sonoma about 2.5 mi e of Bodega Bay Comment
  UC1761618  Viola adunca Helen Von Grafen 1927-4-18 Sonoma Cotati Comment
  UC1057435  Viola douglasii G. Thomas Robbins 1937-3-25 9 Sonoma 8-10 mi e of Santa Rosa (near Golf and Country Club); Santa Rosa Creek Canyon Comment
  CAS-BOT-BC536905  Viola glabella Peter Rubtzoff 1959-4-19 4045 Sonoma Sonoma County Marshes: Duncans Mills Marsh, at the border of the upper part of the Marsh 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
  UC828264  Viola ocellata Milo S. Baker June 1939 9469 Sonoma between Occidental and Graton (s side of Meeker Grade); Meeker Grade 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-BC270154  Viola palustris M. S. Baker 1906-5-1 s.n. Sonoma At Kenwood Comment
  UC1761303  Viola sempervirens Mary Eloise Bauder 1929-6-4 4 Sonoma Pocket Canyon Guerneville Comment
  POM161243  Viola sempervirens R. C. Bacigalupi 1928-5-2 1395 Sonoma Cazadero. Comment
  RSA412784  Viola sempervirens Christopher Davidson 1977-6-20 6038 Sonoma Ridge Crest Rd., on Sea Ranch property south of Gualala River. 30 Comment
  CAS-BOT-BC135288  Viscum album Stanley Rose 1966-4-3 s.n. Sonoma about 1 mile from Sebastopol on Gravenstein Highway North Comment
  CAS-BOT-BC135294  Viscum album D. Wiens; R. Scharpf 1973-6-17 4900 Sonoma Sebastopol, in and around the town Comment
  OBI5335  Viscum album C. W. Nichols & W. O. McCartney, W. O. McCartney 1966-1-17 s.n. Sonoma Backyard of 1220 Gravenstein hwy N at Ill Station rd, 1 mi N of Sebastopol Comment
  CAS-BOT-BC540819  Vitis Peter Rubtzoff 1970-8-31 6350 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River. Comment
  CAS-BOT-BC203125  Vitis californica Irja Knight; Walter Knight 1964-11-15 778 Sonoma Hood's [Hood] Peak below Johnson Lake Comment
  UCD102856  Vitis californica C. Wistrom 1996-5-26 25 Sonoma Healdsburg. 1601 Dry Creek Road. 48 Comment
  UCD58729  Vitis californica Eric Wada 2006-9-3 RR 4 Sonoma On Westside Road between Healdsburg and Guerneville. North bank of Russian River 18 Comment
  RSA0121715  Vitis californica Christopher Davidson 1977-6-20 6003 Sonoma Dry Cr. Road, 7.2 miles W of Geyserville. Along Warm Sprgs Cr. 76 Comment
  UCD17550  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma 2 miles N on Upper Lake Highway, E of Ukiah. Near first highway bridge. Comment
  CAS-BOT-BC199898  Vulpia bromoides A. A. Heller 1902-4-4 5221 Sonoma Hills near Santa Rosa Comment
  CAS-BOT-BC199917  Vulpia bromoides Peter Rubtzoff 1952-6-10 1205 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  UC1026478  Vulpia bromoides Peter Rubtzoff 1952-5-31 1095 Sonoma near Forestville (Pitkin Marsh, e branch of Upper Marsh); Pitkin Marsh, Upper Marsh Comment
  UC576350  Vulpia bromoides H. S. Yates 1937-6-6 6585 Sonoma 3 mi e Jenner; Duncans Mills Quad. 60 Comment
  UCD93440  Vulpia bromoides M. S. Baker 1931-3 5461 Sonoma west of Santa Rosa near Wright School House. Comment
  SEINET5424526  Vulpia bromoides V. Longozo 1999-4-19 s.n. Sonoma Bodega Bay Highway 0 Comment
  UC903758  Vulpia microstachys var. ciliata Milo S. Baker 1947-5-5 11722 Sonoma sw slope Hood Mt. (above Baker Ranch) 213 Comment
  UCD93835  Vulpia microstachys var. ciliata Freed W. Hoffman 1943-6-13 2039 Sonoma Geyser Peak Road to Geysers. Comment
  UC933825  Vulpia microstachys var. confusa Leo Koch 1940-4-22 839 Sonoma Geysers; Sulphur Creek Canyon Comment
  UCD94906  Vulpia myuros Gerry North Apr - May 1993 13 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. At first pullout on right after Goodspeed trailhead. Less than 2 miles east of park entrace gate. 243 Comment
  CDA25512  Whipplea modesta G. D. Barbe 1982-5-27 3625 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  JEPS76929  Whipplea modesta Robert M. Lloyd 1963-2-24 2050 Sonoma 0.5 mi n Occidental (on road to Camp Meeks, abandoned picnic ground) 45 Comment
  UC765073  Whipplea modesta R. F. Hoover 1939-4-18 4046 Sonoma 3 mi w Graton (on road to Occidental) Comment
  CAS-BOT-BC164676  Woodwardia Peter Rubtzoff 1970-9-17 6391 Sonoma Forestville Marsh area. Comment
  UCD166290  Woodwardia Peter Rubtzoff 1970-9-17 6391 Sonoma Forestville Marsh area. Comment
  CAS-BOT-BC73625  Woodwardia fimbriata Walter Knight; Irja Knight 1964-11-15 777 Sonoma Hood's Peak near Johnson Lake Comment
  SBBG36547  Wyethia angustifolia H. and M. Dearing 1939-5-14 3374 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  UCD151202  Wyethia angustifolia James A. Neilson Jr. 1974-7-10 2812 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
  UCR265094  Wyethia angustifolia Ann Howald, Christina Freeman 2015-4-13 3342 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, northwest corner, south of Marsh Trail 362 Comment
  UC1979747  Wyethia angustifolia Roger Raiche 1987-7-5 70382 Sonoma N of Cazadero, The Cedars, near the Butcherknife ridge. Comment
  UCD137024  Wyethia angustifolia Frederica Bowcutt 1995-11-19 182 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. Meadow Trail and Gray Pine Trail junction. 1 mile from trail head. 579 Comment
  UC762538  Wyethia glabra R. F. Hoover 1939-4-18 4047 Sonoma 6 mi w Santa Rosa Comment
  SEINET7042612  Wyethia glabra A. G. Vestal 1947-5-16 s.n. Sonoma 8.1 miles east of Winsor.Mark West Springs quadrangle UTM Zone 10, 531876mE, 4267566mN. Comment
  UCD138093  Zantedeschia aethiopica Malcolm A. Nobs; S. Galen Smith 1949-6-30 919 Sonoma Bodega Bay. Comment
  SEINET12057583  Zigadenus fremontii F. H. Utech 1978-6-26 78 -255 Sonoma Salt Point, coasta Range area 30 Comment



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