Search Results — 2000 specimen records retrieved (1466 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
  UCD54553  Acacia baileyana Ellen Dean 2005-10-12 2741 Napa W of town of Napa. N side of Partrick Rd. 1660 Partrick Rd. 236 Comment
  CAS-BOT-BC331525  Acer macrophyllum Alice Eastwood 1918-5-1 6870 Napa Mt. St. Helena Comment
  UCSB19170  Acer macrophyllum Rankine, Jane 1965-4-13 Napa 3 miles west of pope Valley on the road between rope Valley and Anqwin Comment
  SFV8398  Achillea millefolium C. Bornman 1962-5-17 69 Napa About 1 mile west of Lake Berryessa on State Highway 128. North slope. 137 Comment
  UCD128288  Achillea millefolium Richard Beaver 1965-5-1 150 Napa on slope with northeast exposure; 10 miles north of junction of Highway 121 and Highway 128. 182 Comment
  RSA0045564  Achillea millefolium subsp. lanulosa Keith E. Hoffmaster 1946-3-23 s.n. Napa Napa range, along Napa-Monticello road Comment
  UC769961  Achnatherum lemmonii Robert F. Hoover 1941-6-8 5320 Napa e side of Mt. St. Helena Mt. St. Helena Comment
  SEINET11687430  Achnatherum lemmonii F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -300 Napa Robert Lewis Stevenson State Park, trailhead on CA 29 near St. Helena Creek 750 Comment
  JEPS36719  Achyrachaena mollis W. L. Jepson 1897-5-2 Napa St. Helena Comment
  POM41565  Achyrachaena mollis Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA786930  Achyrachaena mollis Carrie A. Herd 1982-5-9 100 Napa Sage Canyon Road, Con Dam area Comment
  UCD75712  Acmispon americanus var. americanus Jake Ruygt 2004-9-25 4673 Napa West side of Maxwell Creek (DFG Property) about 0.5 mile from Pope Cr. 167 Comment
  UCD168550  Acmispon brachycarpus Stephen P. Rae; A. Solomeshch 2007-3-25 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  UCD47973  Acmispon brachycarpus A. Miles; E. Anderson, L. Lina, J. Waggoner, and R. Wenk 2000-4-22 3 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  UCD75711  Acmispon glaber Jake Ruygt 2008-6-25 4931 Napa Peak below and SW of Berryessa Peak. 762 Comment
  UCD149712  Acmispon parviflorus Stephen P. Rae; Ayzik Solomeshch 2007-4-10 s.n. Napa Signorello Winery, 4500 Silverado Trail, ca. 1/4 km east of Silverado Trail. 65 Comment
  UCD104557  Acmispon wrangelianus M. Wiesendanger 1927-5-4 684 Napa Near Monticello. Comment
  UC924242  Adenocaulon bicolor H. S. Reed 1942-8-2 Napa Mount Veeder 609 Comment
  CDA10859  Adenostoma fasciculatum G. F. Hrusa, M. Rejmanek 1993-5-15 10954 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  JEPS44789  Adenostoma fasciculatum W. L. Jepson 1915-12-6 6584 Napa Howell Mt. Comment
  RSA60355  Adenostoma fasciculatum var. fasciculatum G. R. Campbell 1948-6-18 658 Napa 10 miles south of Montecello Comment
  CAS-BOT-BC68994  Adiantum aleuticum Peter H. Raven 1957-5-5 10769 Napa Hills at western edge of Calistoga 182 Comment
  JEPS127885  Adiantum jordanii Adam C. Schneider with Dick O'Donnell 2014-5-28 242 Napa Northern edge of Cedar Roughs Wilderness Area, south of Pope Canyon Rd. 2.5 miles west of Junction with Barynessa Knoxville Road. Comment
  UCD14797  Adiantum jordanii Matt Gause 1991-6-2 23 Napa 6.8 miles out of the city of Napa along Highway 121. 231 Comment
  UCSB8225  Adiantum jordanii Keator, Glenn 1959-3-28 Napa Conn's picnic grounds near Lake Hennessy, Napa range Comment
  UCD67507  Aesculus californica D. Sanchez-Mata 1996-6-5 s.n. Napa Lake Berryessa. Pope Canyon Road. 180 Comment
  UCD164733  Agastache urticifolia Jake Ruygt 2014-6-9 5992 Napa Livermore Ranch, Cub Valley. 657 Comment
  HSC4596  Agoseris grandiflora W. L. Jepson 1893-4-24 Napa E of St. Helena to Conn Valley. Napa River Basin Comment
  UC29369  Agoseris grandiflora var. grandiflora Willis L. Jepson 1893-6-1 Napa road to Napa Soda Springs (?); Napa River Basin Comment
  CAS-BOT-BC22757  Agoseris heterophylla John H. Thomas 1955-5-21 5178 Napa Near state highway 128 and Capell Creek, about 12 miles E of St. Helena 274 Comment
  UCD128604  Agoseris heterophylla Heidi E. M. Dobson 1978-6-20 344 Napa East slope of Mt. Veeder. Comment
  UCD63193  Agoseris heterophylla Jake Ruygt 1980-4-22 840 Napa Napa Valley, Pope Canyon Rd. 0.9 miles west of Walter Springs bridge (old). 195 Comment
  JEPS18236  Agoseris heterophylla var. cryptopleura Peter H. Raven 1957-5-5 10744 Napa near the hot springs at the airport Calistoga 91 Comment
  JEPS104500  Agoseris retrorsa Jake Ruygt 1989-4-22 2269 Napa East of Highway 121 on Highway 128 (marker 26.81) Capell Valley 7.5' Quad. Comment
  SEINET3916090  Agrostis diegoensis Fred W. Hoffman 1944-7-7 1972 Napa Chaparral, east slope Trinity Road.; 0 Comment
  CAS-BOT-BC127401  Agrostis elliottiana Peter H. Raven 1955-4-9 8268 Napa Howell Mountain (west slope). 457 Comment
  UCD51702  Agrostis elliottiana Joseph P. Tracy 1950-5-23 18671 Napa La Jota Plateau, on hills at head of Moore's Creek, 3-4 miles east of Angwin's, Howell Mountain. 518 Comment
  UCD52231  Agrostis exarata Beecher Crampton 1960-5-17 5536 Napa south slopes of Conn Reservoir, 4 miles east of Rutherford. Comment
  UCD52543  Agrostis exarata Beecher Crampton 1963-9-25 6905 Napa State Hwy. 37, west slope of Howell Mtns., east of Napa. Comment
  CAS-BOT-BC139671  Agrostis gigantea John Thomas Howell 1943-6-20 18241 Napa Hills southwest of Saint Helena. Comment
  UCD53041  Agrostis microphylla Beecher Crampton 1956-5-21 3443 Napa Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  JEPS76289  Agrostis pallens W. L. Jepson 1944-7-30 27541 Napa Four Corners Napa Valley, Howell Mt. Comment
  UCR227899  Agrostis pallens Ayzik Solomeshch 2007-5-30 s.n. Napa Woolls Ranch, 1032 Veeder Road, northwest of the city of Napa 152 Comment
  UCD159958  Aira caryophyllea Alice Warrick 2006-6-1 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q44. 243 Comment
  JEPS76078  Aira elegantissima W. L. Jepson 1938-5-18 18801 Napa slope above St. Helena Sanitarium (Howell Mountain); Howell Mountain Comment
  UC146133  Alisma plantago-aquatica Joseph P. Tracy 1905-7-8 2236 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  JEPS110915  Allium amplectens Jake Ruygt 1986-5-10 1762 Napa Devil's Canyon above falls 579 Comment
  RSA292972  Allium amplectens Reino Alava 1957-5-30 1019 Napa About two and seven tenths of a mile from Angwin, west side of Mt. Howell. Comment
  RSA335884  Allium amplectens D. W. McNeal 1977-5-18 2034 Napa 0.2 mile SE of the junction of Lower Chiles Valley Road. Comment
  CAS-BOT-BC461090  Allium amplectens John Thomas Howell 1933-5-21 11319 Napa Hills east of Napa Comment
  CAS-BOT-BC461091  Allium amplectens David D. Keck 1933-5-29 2365 Napa Pope Creek bridge south of Walters Springs Comment
  UCD161509  Allium bolanderi var. bolanderi Jake Ruygt 1989-5-20 2330 Napa Monticello Road at Circle Oaks. 304 Comment
  CAS-BOT-BC229  Allium cratericola Alice Eastwood 1918-5-1 6864 Napa Mt. St. Helena Comment
  CAS-BOT-BC466764  Allium cratericola Alice Eastwood 1923-5-9 s.n. Napa Old crater, Mt. St. Helena Comment
  CHSC108736  Allium falcifolium B. Castro; L. P. Janeway 2002-5-12 1364 Napa Inner North Coast Ranges. Near top of ridge on northeast side of Pocock Creek along the dirt road from Devilhead Road. NNW-facing slope at edge of road opening and cutbank. 536 Comment
  JEPS110938  Allium falcifolium Jake Ruygt 1979-4-23 544 Napa 2.3 miles east of Silverado Trail on HWY 128 106 Comment
  UCD33221  Allium falcifolium Beecher Crampton 1967-5-11 7921 Napa 4.5 miles east of Rutherford, south slope, Conn Reservoir. Comment
  UCD48254  Allium falcifolium K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, and K. Watts 2000-4-28 4 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of rd. 545 Comment
  UCD48255  Allium falcifolium A. Laffin; A. Randall, S. Holck 2002-4-13 3 Napa Napa Co, McLaughlin UC Reserve. North of Knoxville-Berryessa Road. Ca. 0.5 airline mile WSW of old town Knoxville. Volcanic rocky outcrop, ca. 100 yards upslope of road. 437 Comment
  CAS-BOT-BC469026  Allium falcifolium John Morrison; Annetta Carter 1938-4-24 1355 Napa 0.6 miles west of Knoxville on road from Monticello to Lower Lake. Comment
  CAS-BOT-BC469028  Allium falcifolium David D. Keck 1933-5-29 2375 Napa 1.3 miles south of Knoxville. Comment
  CAS-BOT-BC469029  Allium falcifolium David D. Keck 1933-5-29 2375 Napa 1.3 miles south of Knoxville. Comment
  UC353887  Allium falcifolium Milo S. Baker 1927-5-1 2147 a Napa Calistoga-Middletown Hiway 3 or 4 mi n Toll House Comment
  UCD138521  Allium falcifolium M. Ensign 1943-5-28 327 Napa 26 miles from Monticello on road to Lower Lake. Comment
  CHSC83398  Allium fimbriatum var. fimbriatum L. P. Janeway; B. Castro 2002-5-12 7551 Napa Inner North Coast Ranges. Northeast-facing slope along Devil-head Road 0.8 km south of Berryessa-Knoxville Road and Knox-ville Creek. 488 Comment
  UCD20505  Allium fimbriatum var. fimbriatum E. Dean; w/ Rob Weiss, Layne Huiet, and Kate Mawdsley 2002-6-2 1078 Napa McLaughlin UC Reserve. SE reaches of Research Hill, rocks S of Parking area at jct of old 4WD road with Knoxville-Berryessa road. NE side of Hunting Creek. 609 Comment
  CAS-BOT-BC468997  Allium fimbriatum var. fimbriatum David D. Keck 1931-4-3 1083 Napa Pope Creek Canyon, 8 miles NW. of Monticello Comment
  UCD161517  Allium lacunosum var. lacunosum Jake Ruygt 1990-5-5 2529 Napa south of Leoma Lakes, Wild Horse Valley Ranch. 429 Comment
  UCD48742  Allium serra K. Mogel; B. Pekin and M. Higley 2002-5-4 11 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the jct of West and East roads; ca. 900 ft. along the lower road that leads to the power lines; immediately downslope of road. 304 Comment
  UCD48746  Allium serra Lynn Wheeler; Mark Bibbo, Ann Koehmstedt, and Tom Liebmann 2001-4-28 14 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Found along Decker Ridge Rd. just S of jct with S. Decker Canyon Rd. 365 Comment
  CAS-BOT-BC475560  Allium serra David D. Keck 1933-5-29 2374 Napa 1.3 miles south of Knoxville Comment
  CAS-BOT-BC475561  Allium serra David D. Keck 1933-5-29 2374 Napa 1.3 miles south of Knoxville Comment
  JEPS122717  Allium triquetrum Jake Ruygt 1984-4-28 1533 Napa 0.2 mile south of end of Redwood Road. Quad: Sonoma. Comment
  CAS-BOT-BC476618  Allium unifolium John Thomas Howell 1931-4-19 6462 Napa Conn Valley Comment
  JEPS84574  Allophyllum divaricatum John W. Willoughby 1977-4-27 2288 Napa 0.7 mi. s.w. Monticello Dam (s. of Hwy. 128) 195 Comment
  SEINET2444438  Allophyllum gilioides K. Walker 2006-5-13 3 Napa Quail Ridge Reserve, West Ashley Rd. 0.5 mi NW of Laurel Creek. 208 Comment
  UCD169878  Allophyllum gilioides subsp. gilioides Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 718 Napa Knoxville Wildlife Area. 245 Comment
  JEPS43478  Allotropa virgata Wayne Roderick 1966-5-13 Napa 2 mi up from highway from Calistoga to Geyserville (on the Ida Clayton Road); Ida Clayton Road 304 Comment
  JEPS129105  Alopecurus pratensis Jake Ruygt 2016-4-12 6186 Napa Wantrup Wildlife Sanctuary, Hardin Road. Chiles Valley 7.5' Quad. Comment
  JEPS123021  Alopecurus saccatus Jake Ruygt 1982-6-1 1305 Napa 0.3 mile north of Chimney Rock Golf Course. Quad: Yountville. Comment
  JEPS115736  Amaranthus albus Lowell Ahart 2009-10-12 16468 Napa Along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters 133 Comment
  JEPS115737  Amaranthus blitoides Lowell Ahart 2009-10-12 16469 Napa Along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters 133 Comment
  UCD148561  Amaranthus californicus Jake Ruygt 1987-10-12 2098 Napa Napa County; Sage Canyon Rd., near edge of Lake Hennessey. 91 Comment
  JEPS115744  Amaranthus retroflexus Lowell Ahart 2009-10-12 16471 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of 133 Comment
  JEPS7803  Ambrosia psilostachya Peter H. Raven 1951-9-9 3899 Napa near Slaughterhouse Point; Napa River 0 Comment
  CHSC79352  Amelanchier alnifolia Beecher Crampton 1966-5-10 7716 Napa 9 miles east of Rutherford on State Hwy. 128. Comment
  UCD39199  Amelanchier alnifolia Beecher Crampton 1953-5-19 1306 Napa 12 miles east of Rutherford, Highway 128. Comment
Read comments
Jun 12 2012
  JEPS85021  Amelanchier utahensis Larry Heckard and Mary Ashton 1969-5-3 2222 Napa 7 mi ne Napa (Mead Ranch, off Atlas Peak Rd, near entrance to Mead Ranch) 457 Comment
  RSA26269  Amelanchier utahensis J. T. Howell 1940-5-19 15446 Napa Upper St. Helena Creek. Comment
  JEPS112659  Ammannia robusta Jake Ruygt 1999-7-28 4212 Napa Lake Hennessey at the boat ramp. 94 Comment
  JEPS106984  Amorpha californica var. napensis Gordon E. McBride 2001-5-10 s. n. Napa on both sides of Dry Creek Road about 100 yds E of the interection with Wall Road, about five mi W of Oakville (just N of Yountville) Comment
  JEPS107261  Amorpha californica var. napensis Jake Ruygt 1976-5-18 91 Napa 5.2 miles west of Madronna St. on Spring Mountain Rd. 615 Comment
Read comments
Aug 15 2010
  JEPS126073  Amsinckia eastwoodiae Jake Ruygt 1982-3-26 1146 Napa East of Rocktram, west of Highway 221. Napa 7.5' Quad. Comment
  UCD119266  Amsinckia intermedia Mary N. Artist 1965-3-19 7 Napa 3.5 miles E of Pope Valley. Comment
  UCD161230  Amsinckia intermedia Jake Ruygt 2010-3-27 5494 Napa Silverado Trail north of Skellinger Lane. (Coordinates estimated by label maker at UC Davis). 56 Comment
  UCD37577  Amsinckia intermedia Beecher Crampton 1955-4-7 2453 Napa At border with Solano and Yolo Counties, 7 miles west of Winters, 0.25 mile west of Recreation Beach of Putah Creek, Vaca Mountains, east facing slope of Cold Canyon. Comment
  JEPS61120  Amsinckia intermedia Willis L. Jepson 1893-1 21081 Napa Angivins Meadows; Napa River Basin, Howell Mountain, Napa Range Comment
  UCD170350  Amsinckia lunaris Daniel Potter; N Khuu, D McNair, A Holland, K Battenberg 2016-4-3 849 Napa Knoxville Wildlife Area, along Nevada Creek. 452 Comment
  UC24615  Amsinckia lycopsoides Willis L. Jepson 1891-5-1 Napa Upper Conn Valley; Napa River Basin Comment
  JEPS24905  Amsinckia lycopsoides W. L. Jepson 1893-1 21078 Napa St. Helena; Napa Valley, St. Helena Comment
  UC702995  Amsinckia menziesii var. menziesii John Thomas Howell 1941-4-5 16170 Napa about 1 mi sw Calistoga Comment
  UCD170199  Anagallis arvensis Daniel Potter 2015-3-14 758 Napa Knoxville Wildlife Area, west of Zim Zim Creek. 358 Comment
  CAS-BOT-BC64138  Ancistrocarphus filagineus John Thomas Howell 1931-4-3 6129 Napa Pope Creek Canyon, 8 miles from Monticello, Napa Range Comment
  CAS-BOT-BC64139  Ancistrocarphus filagineus Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5326 Napa Soda Creek, e. of Chiles Valley 182 Comment
  UC165850  Ancistrocarphus filagineus J. P. Tracy 1902-5-17 1513 Napa 3 to 4 mi e Angwin's; Howell Mountain, Head of Moore's Creek 365 Comment
  UCD18094  Ancistrocarphus filagineus Ellen Dean; with PLB 102 class 2000-4-29 750 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  UC127125  Angelica tomentosa Harley P. Chandler Sep 7 1906-Sep 14 1906 7119 Napa Howell Mountain, Alta Loma Ranch Howell Mountain; , Alta Loma Ranch 487 Comment
  UC174197  Angelica tomentosa Katharine Brandegee 1910-7-26 Napa near Aetna Springs Comment
  UCD117789  Anisocarpus madioides Marisol Gonzalez; Plant Biology 102 Collectors 2012-5-5 6 Napa Las Posadas State Experimental Forest. Northeastern part of property, Recreation Flat, where main meadow and forest meet. 387 Comment
  UCD95683  Anisocarpus madioides Ellen Dean; with Clare Loughran 2011-5-20 7028 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 609 Comment
  CAS-BOT-BC84722  Anthemis cotula Peter H. Raven 1950-6-20 2356 Napa In the Napa Range between Conn Valley & Howell Mtn. Comment
  JEPS104498  Anthriscus caucalis Jake Ruygt 1986-5-7 1754 Napa Lake Marie Trail, Skyline Park 152 Comment
  UCD164835  Antirrhinum cornutum Jake Ruygt 2012-6-2 5858 -b Napa Spanish Valley on south ridge. 347 Comment
  JEPS21670  Antirrhinum kelloggii John H. Thomas 1958-4-19 7123 Napa about 2 mi sw Oakville 152 Comment
  JEPS43777  Antirrhinum majus J. A. Marinovich 1964-5-8 18 Napa sw of Monticello Dam (along Hwy 128, between Monticello Dam and junction with Hwy 37, along creek e of hwy) 182 Comment
  JEPS110621  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Jake Ruygt 1979-7-12 746 Napa 5.9 miles NE of Monticello Rd. on HWY 128 274 Comment
  CAS-BOT-BC237922  Antirrhinum virga Mrs. Merrel Ackley 1962-6-27 s.n. Napa Hills about 5 miles west of St. Helena Comment
  UC147871  Antirrhinum virga J. P. Tracy 1899-6-18 368 Napa 3-4 mi e Angwin's (La Jota Plateau, Head of Moore's Creek); Howell Mountain, Moore's Creek, La Jota Plateau 518 Comment
  UC483303  Aphanes macrosepala Ira L. Wiggins 1932-3-12 5763 Napa between Franz Valley and Calistoga Comment
  CDA11135  Apiastrum angustifolium G. F. Hrusa, G. L. Stebbins, H. Townsend 1994-4-25 11825 Napa North Coast Biodiversity Arena; Upper slopes of Mt. George Comment
  RSA653989  Apiastrum angustifolium Beecher Crampton 1956-5-25 3451 Napa Vaca Mountains, Martley Canyon, along new road from Monticello Dam to Napa Comment
  JEPS104487  Apocynum cannabinum Jake Ruygt 1979-6-30 729 Napa .3 miles north of Darms Lane on Solano Avenue 27 Comment
  JEPS106773  Arabis glabra Jake Ruygt 1983-4-3 1405 Napa east end of Green Valley Rd. 432 Comment
  CAS-BOT-BC16718  Arabis modesta Donald V. Hemphill 1958-3-17 s.n. Napa About 100 feet above site of Monticello Dam, Napa-Yolo county line. Comment
  CAS-BOT-BC17369  Arabis oregana Stephen P. Rae; Roman Gankin 1975-4-26 s.n. Napa Above a road cut and adjacent to Cedar Creek. 548 Comment
  UCD75841  Arabis oregana Jake Ruygt 1984-3-3 1501 Napa Devilshead Rd. near Cedar Creek. 542 Comment
  UCD34066  Arbutus menziesii Beecher Crampton 1975-11-18 9340 Napa South of Wooden Valley along Suisun Creek. Comment
  HSC7607  Arctostaphylos canescens C. B. Wolf 1928-2-25 1502 Napa 1 mi. N of summit of Mt. St. Helena grade Comment
  JEPS116549  Arctostaphylos canescens Jake Ruygt 2002-7-13 4442 Napa End of Redwood Road, Archer Taylor Preserve, Tin Cabin Trail. Sonoma 7.5' Quad. Comment
  SD20479  Arctostaphylos canescens H. E. McMinn 1936-4-4 4395 Napa Ridge above R. L. Stephenson's Monument; Mt. St. Helena. Comment
  CAS-BOT-BC23954  Arctostaphylos canescens subsp. canescens John Thomas Howell 1926-3-21 1703 Napa Mt. St. Helena along trail to summit Comment
  CAS-BOT-BC23956  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1928-5-4 1858 Napa Mt. St. Helena Comment
  CAS-BOT-BC23962  Arctostaphylos canescens subsp. canescens Walter Knight; Irja Knight 1963-9-23 105 Napa Near quarry, near Lake County Line, Mt. St. Helana. Adjacent to Silverado State Park. Comment
  CAS-BOT-BC23985  Arctostaphylos canescens subsp. canescens Mrs. S. Earle Kelley 1918-8-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC23992  Arctostaphylos canescens subsp. canescens Ira L. Wiggins 1949-4-30 12082 Napa On saddle about 1.5 miles from summit of Mount St. Helena. 1066 Comment
  CDA11262  Arctostaphylos canescens subsp. canescens G. F. Hrusa, G. L. Webster, J. M. Tucker 1994-10-29 11917 Napa North Coast Biodiversity Arena; Mt. George Napa Land Trust Reserve. Comment
  UC1424918  Arctostaphylos canescens subsp. canescens Gary D. Wallace 1974-12-23 1346 Napa along Hwy 29 just n Robert Louis Stevenson State Park (se of Mt. St. Helena) 609 Comment
  CAS-BOT-BC23624  Arctostaphylos crustacea Alice Eastwood; John Thomas Howell 1937-4-4 3828 Napa Wooden Valley Grade, E of Napa Comment
  CAS-BOT-BC24862  Arctostaphylos glandulosa subsp. cushingiana Gertrude Raven Hardman 1968-2-1 s.n. Napa Pope Valley Comment
  CAS-BOT-BC23144  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1922-3-26 11116 Napa Mt. St. Helena Comment
  CAS-BOT-BC23146  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1922-5-5 11297 Napa Mt. St. Helena Comment
  SBBG5421  Arctostaphylos glandulosa subsp. glandulosa Milton Workman 1953-3-23 26 Napa Mix Cyn Comment
  UC1120222  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1939-3-18 871 Napa 1 1/2 mi ne Mt. Veeder; Sonoma Quadrangle Comment
  UC1120313  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1936-9-20 711 Napa Mt. St. Helena Calistoga Quadrangle Comment
  UCR228649  Arctostaphylos glandulosa var. cushingiana Ellen Dean, Stephen Rae 2008-5-21 4981 Napa Hills to the west of Hwy 29. Private property accessed by Diamond Mountain Road 268 Comment
  JEPS46407  Arctostaphylos manzanita unknown 1896-2-23 Napa Howell Mt. Comment
  RSA355181  Arctostaphylos manzanita L. F. LaPre 1985-4-24 355181 Napa Along Livermore Road between Hwy 29 (at Mountain Mill House Girl Scout Camp) and White Point, near the Lake Co. Line and S of Three Peaks. Comment
  UCD118157  Arctostaphylos manzanita Linnea Neuhaus; Plant Biology 102 Collectors 2012-4-29 7 Napa Las Posadas State Experimental Forest. 0.1 mile northeast of fire station, along undeveloped road, north side of road. 519 Comment
  UCD52209  Arctostaphylos manzanita Roman Gankin 1966-2-26 680 Napa ca. 100 yards up hill from gate at roadway; property west of Macdonald Ranch, Las Posadas State Forest, Napa County, California. Comment
  UCSB32987  Arctostaphylos manzanita Haller, John 1979-5-4 Napa Mead Ranch; near Atlas Peak Road; about 5 miles (by road) north of State Highway 121; 9 miles north of Napa 487 Comment
  CAS-BOT-BC38918  Arctostaphylos manzanita subsp. elegans John Thomas Howell 1930-7-13 5354 Napa Chaparral on the edge of the Crater Country Comment
  CAS-BOT-BC24282  Arctostaphylos manzanita subsp. manzanita Willis Linn Jepson 1896-2-23 s.n. Napa Howell Mt. Napa River Basin. Comment
  CAS-BOT-BC38762  Arctostaphylos manzanita subsp. manzanita Alice Eastwood 1918-9-3 7948 Napa Mt. St. Helena Comment
  CAS-BOT-BC38775  Arctostaphylos manzanita subsp. manzanita Peter H. Raven 1954-2-22 6413 a Napa Hills just north of White Sulfur Springs, w. of St. Helena 152 Comment
  JEPS122808  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-23 5115 Napa Top of Oakville Grade. QUAD: Rutherford. Comment
  JEPS122811  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-21 5110 Napa Silverado Trail about 1/4 mile north of Clover Flat Road. QUAD: Calistoga. Comment
  JEPS38705  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1918-6-24 7669 Napa halfway down valley floor to Toll House; Mt. St. Helena Comment
  JEPS38707  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1895-12-26 14714 Napa hills e St. Helena Comment
  JEPS38708  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1898-1-4 14715 Napa Howell Mt. Howell Mt. (near type locality) Comment
  POM193979  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1930-3-23 4558 Napa Near Mt. St. Helena. Comment
  UC1005686  Arctostaphylos manzanita subsp. manzanita Frank W. Gould 1939-4-6 593 Napa 5 mi e Napa (just n of Mt. George) 228 Comment
  UC571210  Arctostaphylos manzanita subsp. manzanita H. L. Mason 1925-1-22 1205 Napa Wooden Valley Grade Comment
  UCD164871  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2013-2-14 5901 Napa Atlas Peak Road near Milliken Reservoir. Comment
  CAS-BOT-BC43854  Arctostaphylos stanfordiana Mrs. E. Wright 1920-2-22 s.n. Napa Calistoga Comment
  CAS-BOT-BC43862  Arctostaphylos stanfordiana C. Hart Merriam 1906-8-15 s.n. Napa Mt. St. Helena (East side) Comment
  CDA11908  Arctostaphylos stanfordiana G. F. Hrusa, G. L. Stebbins 1994-4-8 11714 Napa North Coast Biodiversity Arena; Approx. 1/2 mile above Aetna Springs resort. Comment
  HSC7716  Arctostaphylos stanfordiana L. S. Rose 1964-4-2 64015 Napa 2 miles W of Angwin 244 Comment
  JEPS58788  Arctostaphylos stanfordiana W. L. Jepson 1938-9-28 19041 Napa La Jota Mesa Howell Mt. Comment
  SD125797  Arctostaphylos stanfordiana Lewis S. Rose 1964-4-2 64015 Napa 2 mi. SW of Angwin 245 Comment
  SD64429  Arctostaphylos stanfordiana Darley F. Howe 1966-6-3 4264 Napa 3 mi. S of Angwine 305 Comment
  UC402905  Arctostaphylos stanfordiana Mrs. H. P. Bracelin 1930-3-23 Napa flanks of mt. 1 1/2 mi se Mt. St. Helena Inn; Mt. St. Helena Comment
  UC83380  Arctostaphylos stanfordiana C. C. Parry April 1888 Napa Calistoga Comment
  UC924271  Arctostaphylos stanfordiana H. S. Reed 1939-4-16 229 Napa Napa Hills Comment
  UCD53856  Arctostaphylos stanfordiana Lewis S. Rose 1964-4-2 64015 Napa 2 miles southwest of Angwin. 243 Comment
  UCSB25234  Arctostaphylos stanfordiana McMinn, Howard 1936-4-4 Napa Game Refuge, Howell Mountain Comment
  UCR212318  Arctostaphylos stanfordiana subsp. decumbens Ayzik Solomeshch 2007-8-7 s.n. Napa North Coast Range, Oakville Ranch, c. 6 miles northwest of the town of Yountville; on Hwy 29 take 'Oakville Grade Road', c. 3 miles north from Yountville 205 Comment
  RSA169361  Arctostaphylos stanfordiana subsp. stanfordiana L. S. Rose 1964-4-2 64015 Napa 2 miles SW of Angwin. 244 Comment
  RSA181955  Arctostaphylos stanfordiana subsp. stanfordiana W. L. Jepson 1915-12-6 6586 Napa Howell Mt. Comment
  RSA52686  Arctostaphylos stanfordiana subsp. stanfordiana I. L. Wiggins 1949-4-30 12084 Napa On saddle bout 1.5 mi. from summit of Mt. St. Helena. Comment
  UC2026413  Arctostaphylos stanfordiana subsp. stanfordiana Louis C. Wheeler 1952-8-30 6876 Napa MANGANESE RIDGE: Moore Creek, Howell Mountain. Comment
  UCR101766  Arctostaphylos stanfordiana subsp. stanfordiana L. C. Wheeler 1952-8-30 6876 Napa Manganese Ridge: Moore Creek, Howell Mtn Comment
  CDA11907  Arctostaphylos viscida G. F. Hrusa, G. L. Stebbins 1994-4-8 11713 Napa North Coast Biodiversity Arena; Approx. 1/2 mile above Aetna Springs resort. Comment
  HSC7715  Arctostaphylos viscida Greg Bos 1963-3-3 27 Napa Putah Creek entrance to Lake Berryesa 152 Comment
  UCD52447  Arctostaphylos viscida Roman Gankin 1966-2-26 681 Napa Next to roadway at gate; property west of Macdonald Ranch, Las Posadas State Forest, Napa County, California. Comment
  UCD52448  Arctostaphylos viscida Bill Wengeler 1995-4-16 s.n. Napa Approx. 4 mi. W. of junction with Hwy. 121 along Hwy. 128. 201 Comment
  UCSB30734  Arctostaphylos viscida Kelly, Michael 1975-3-24 Napa Left side of road 15 mi. east of intersections of Highway 128 and 29 853 Comment
  SEINET11989692  Arctostaphylos viscida W. Knight, Knight, I. 1982-1 4551 Napa 0.5 mi W of Spanish Flat, on road to Conn Reservoir Comment
  CHSC83413  Arctostaphylos viscida subsp. pulchella L. P. Janeway; B. Castro 2002-5-12 7546 Napa Inner North Coast Ranges. Ridge top north of Cedar Creek, along road from Devilhead Road. 579 Comment
  JEPS120408  Arctostaphylos viscida subsp. pulchella Jake Ruygt 2007-3-31 5135 Napa Las Posadas State Forest, NE of Recreation Flat. Comment
  UC604657  Arctostaphylos viscida subsp. pulchella Joseph P. Tracy 1938-6-5 15835 Napa 5 mi e Angwin's (on hills at head of Moore's Creek); Howell Mountain 457 Comment
  CAS-BOT-BC47454  Arctostaphylos viscida subsp. viscida H. E. McMinn 1922-6-8 198 Napa in Pope Creek Canyon Comment
  JEPS32463  Aristolochia californica W. L. Jepson 1939-9-12 19479 Napa York Creek near St. Helena Comment
  UCD151054  Aristolochia californica P. B. Kaufman 1950-4-28 33 Napa besides Winters-Monticello road, approximately 9.5 miles from Winters near Yolo-Napa county line. Comment
  JEPS104524  Artemisia californica Jake Ruygt 1979-11-24 798 Napa 2.3 miles north of Monticello Rd. on Atlas Peak Rd. 79 Comment
  JEPS104557  Asclepias cordifolia Jake Ruygt 1979-5-16 599 Napa 9.2 miles NE of Atlas Peak Rd. on Monticello Rd. 280 Comment
  UCD169615  Asclepias cordifolia Ayzik Solomeshch 2008-4 s.n. Napa north side of Pope Canyon Road ca 2 km west of intersection with Berryessa-Knoxville Road. 140 Comment
  JEPS104556  Asclepias eriocarpa Jake Ruygt 1979-6-18 707 Napa .3 miles east of Butts Canyon Rd. on Aetna Springs Rd. 216 Comment
  JEPS122711  Asclepias speciosa Jake Ruygt 1986-6-28 1844 Napa Mt. Millhouse Camp, Mt. St. Helena. Quad: Detert Reservoir. Comment
  CAS-BOT-BC68859  Aspidotis californica Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5339 Napa N. side Pope Creek, Samuels Springs to Walters Springs 243 Comment
  JEPS60029  Aspidotis densa W. L. Jepson 1924-4-27 10382 Napa Mt. St. Helena Comment
  CAS-BOT-BC180473  Astragalus breweri John Thomas Howell 1926-3-28 1777 Napa Myrtledale Hot Springs near Calistoga Comment
  CAS-BOT-BC178626  Astragalus clevelandii Edward Lee Greene 1883-8-1 s.n. Napa N. side of Mt. St. Helena Comment
  UC168341  Astragalus clevelandii Katharine Brandegee Napa Butts Canyon Comment
  UCD160793  Astragalus clevelandii Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8673 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 470 Comment
  CAS-BOT-BC178295  Astragalus gambelianus L. R. Abrams 1928-5-3 12227 Napa St. Helena Grade Comment
  CAS-BOT-BC193127  Astragalus rattanii var. jepsonianus Maxine Wilkes 1933-5-21 s.n. Napa Mt. St. Helena Comment
  JEPS100901  Astragalus rattanii var. jepsonianus Dean W. Taylor 1998-5-14 16434 Napa Pope Canyon, along Pope Canyon Road at crossing of Pope Creek, northerly facing roadbank 100 meters west of the bridge 198 Comment
  UC862608  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs; ; Walter Springs, Napa Co. Comment
  CAS-BOT-BC17535  Athysanus pusillus Peter H. Raven 1950-4-15 1709 Napa Silverado Trail outside of Napa. 15 Comment
  CHSC43811  Athysanus pusillus Lowell Ahart 1976-3-7 1019 Napa On a hillside about 1/4 mile south of the road, about 2 miles south-west of the Monticello Dam. 457 Comment
  UCD18050  Athysanus pusillus Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 602 Napa Napa County. McLaughlin Reserve. Ca. 0.20 - 0.50 miles as the crow flies N of site of old town of Knoxville, along road to Clover Valley. 463 Comment
  RSA10658  Athysanus pusillus C. B. Wolf 1928-5-3 1831 Napa Summit of Mount St. Helena Grade, north of Calistoga. Comment
  JEPS106816  Atriplex semibaccata Jake Ruygt 1979-7-29 787 Napa Fagan's Slough, Sheehy Creek area 2 Comment
  CAS-BOT-BC145927  Avena fatua E. Ruckert 1960-4-29 120 Napa 6465 Dry Creek Road. Pond 300 yards from house. 365 Comment
  UCD118147  Baccharis pilularis Linnea Neuhaus; Plant Biology 102 Collectors 2012-4-29 5 Napa Las Posadas State Experimental Forest. Just northeast of fire station, along undeveloped road, south side of road. 519 Comment
  UCD161326  Baccharis pilularis Jake Ruygt 1979-12-16 799 Napa Napa County : Circle Oaks. (Coordinates estimated by label maker at UC Davis). 615 Comment
  HSC47480  Baccharis pilularis subsp. consanguinea Richard Spjut 1978-12-4 5259 Napa Near Lake Barryessa along Hwy. 128 Comment
  CAS-BOT-BC106728  Baccharis salicifolia Peter H. Raven 1951-5-6 2811 Napa Conn Cr. 2.5 miles from Rutherford to Conn Dam 48 Comment
  CAS-BOT-BC106729  Baccharis salicifolia John H. Thomas 1955-5-21 5155 Napa Along State Highway No. 128, about 4.5 miles south of Montecello 167 Comment
  CAS-BOT-BC16525  Barbarea orthoceras Peter H. Raven 1964-5-9 19068 Napa Along dirt road 2 miles west of Aetna Springs. Comment
  UCD38368  Barbarea vulgaris Beecher Crampton 1955-4-4 2386 Napa 0.5 mile east of St. Helena, Silverado Trail. Comment
  JEPS68458  Beckmannia syzigachne W. L. Jepson 1923-6-3 9977 Napa e Yountville; Napa Valley Comment
  UCD56792  Beckmannia syzigachne Rimo Bacigalupi 1947-4-13 2817 Napa 6 miles SE of Yountville. East side of Napa Valley. Along Silverado Hgihway. Comment
  JEPS14992  Bellardia trixago B. Schreiber 1936-3-5 2213 Napa 1 mi sw Napa; Napa Quad. Comment
  UCD167382  Bellardia trixago Eric LoPresti 2016-5-3 18 Napa McLaughlin UC Reserve. Old town of Knoxville, by gate at Knoxville-Berryessa Road. 396 Comment
  UCD122106  Bellardia trixago J. M. Tucker 1952-5-17 s.n. Napa ca. 7 miles southwest of Napa. Comment
  RSA52658  Berberis pinnata I. L. Wiggins 1949-4-30 12089 Napa E flank of Mt St Helena. 915 Comment
  UC118106  Berberis pinnata Alice Eastwood 1900-9-9 Napa Mt. St. Helena Comment
  JEPS106817  Beta vulgaris Jake Ruygt 1992-7-7 3071 Napa Alston Park near west side of park. 79 Comment
  UCD114362  Boechera breweri Robert E. Preston 1987-6-20 570 Napa E side of Putah Creek ca. 3500 ft s of its confluence with Hunting Creek. 243 Comment
  JEPS53002  Boechera breweri subsp. breweri K. Brandegee 1894-6-1 Napa e of Calistoga (Pope Valley grade summit, n Napa Range); Napa Range Comment
  JEPS110699  Boisduvalia stricta Jake Ruygt 1982-5-26 1300 Napa Craters region near Robert Louis Steve. Sate Park 762 Comment
  JEPS13536  Boschniakia strobilacea W. L. Jepson 1924-4-27 10387 Napa Mt. St. Helena perhaps near Toll House. Comment
  UCD159930  Brachypodium distachyon Alice Warrick 2007-4-26 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q43-1. 243 Comment
  UCD20423  Brachypodium distachyon E. Dean; w/ PLB 102 class 2002-5-4 1010 Napa Quail Ridge UC Reserve, SE corner of Lake Berryessa, just west of Monticello Dam. Near tip of peninsula, N of junction of East and West roads, along lower road leading out to power lines. 304 Comment
  UCD81828  Brachypodium distachyon Ellen Dean 2009-4-24 5455 Napa Property on the SE slope of Mt. St. Helena. 3860 Hwy 29. 274 Comment
  UCD41325  Brassica rapa Ellen Dean; T. and M. Starbuck 2004-4-3 2003 Napa McLaughlin UC Reserve. Along Knoxville-Berryessa Rd. near gate to old town of Knoxville. 396 Comment
  UCD170425  Briza minor Daniel Potter; Daniel McNair 2016-4-23 904 Napa Knoxville Wildlife Area, along the Zim Zim Falls trail. Comment
  RSA491733  Brodiaea californica subsp. leptandra James L. Reveal 1987-6-7 6407 Napa Along California Highway 128 near its intersection with the Berryessa-Knoxville Road, about 5 miles west-northwest of Moskowite Corner, about 13.5 airline miles north of Napa 244 Comment
  UC1442869  Brodiaea californica var. leptandra Theodore F. Niehaus 1966-5-24 680 Napa 3.9 mi w Pope Valley (on Ink Grade Rd) Comment
  UCSB803  Brodiaea coronaria Keator, Glenn 1958-6-16 Napa Near Lake Hennessy, Napa Range Comment
  UC1442894  Brodiaea elegans subsp. elegans Theodore F. Niehaus 1965-5-15 522 Napa on Silverado Trail ca 1 mi n Yountville Junction Comment
  RSA734159  Brodiaea laxa Keith E. Hoffmaster 1946-3-23 1206 Napa Napa range, along Napa-Monticello road Comment
  JEPS110912  Brodiaea leptandra Jake Ruygt 1982-7-18 1372 Napa Deer Park Rd. at Four Corners 414 Comment
  JEPS5689  Brodiaea leptandra W. L. Jepson 1936-7-3 17634 Napa Four Corners Howell Mountain Comment
  UCD168502  Brodiaea leptandra Shannon Hickey 2017-6-15 9 Napa along the west fork of Wild Horse Valley Road between Leoma Lakes and Wild Horse Valley. (Locality information and elevation interpreted by label maker from the collector provided coordinates.) 432 Comment
  RSA125806  Brodiaea terrestris subsp. terrestris Peter H. Raven 1958-5-5 10750 Napa Near the Hot Springs, Calistoga. 91 Comment
  SBBG117219  Bromus B. Crampton 1961-6-12 5902 Napa 7 mi NE of city of Napa, summit along State Hwy 37, Howell Mtn Comment
  SBBG118107  Bromus C. Bornstein, E. Collins 2004-6-19 Napa Pope Valley Rd, 1.6 mi N of jct with Lower Chiles Valley Rd 259 Comment
  UCD60269  Bromus Beecher Crampton 1961-6-12 5902 Napa 7 miles northeast of Napa; Howell Mountains, summit of State Hwy. 37. Comment
  SACT000507  Bromus carinatus John Willoughby 1976-5-18 Napa not far below top, latitude about that of Mount Vaca, with Quercus agrifolia and Pinus sabiniana 609.6 Comment
  UCD36937  Bromus carinatus Beecher Crampton 1956-5-25 3457 Napa Vaca Mountains, head of Markley Canyon. Comment
  SEINET201050 Image available Bromus carinatus var. carinatus J. P. Tracy 1902-5-21 1580 Napa Dry hillside 457 Comment
  UCD149688  Bromus carinatus var. carinatus Stephen P. Rae; Ayzik Solomeshch 2006-5-7 Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD81827  Bromus carinatus var. carinatus Ellen Dean 2009-4-24 5454 Napa Property on the SE slope of Mt. St. Helena. 3860 Hwy 29. 297 Comment
  HSC26182  Bromus hordeaceus J. P. Smith, J. O. Sawyer 1970-5-17 3777 Napa 3 mi. S of Pope Valley Comment
  JEPS76085  Bromus hordeaceus W. L. Jepson 1938-5-22 18814 Napa Pope Valley, Limekiln Creek Canyon Limekiln Creek Canyon; Pope Valley, Limekiln Creek Canyon Comment
  UCD17982  Bromus hordeaceus Ellen Dean; with Plant Biology 102 class 2001-4-14 708 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along North Decker Canyon Trail, N of trail. 182 Comment
  JEPS75634  Bromus laevipes W. L. Jepson 1936-5-28 17541 Napa Howell Mountain, Adam-and-Eve Ridge Adam-and-Eve Ridge; Howell Mountain, Adam-and-Eve Ridge Comment
  JEPS75638  Bromus laevipes W. L. Jepson 1936-5-28 17545 Napa Howell Mountain, Adam-and-Eve Ridge Adam-and-Eve Ridge; Howell Mountain, Adam-and-Eve Ridge Comment
  JEPS76075  Bromus laevipes W. L. Jepson 1938-5-18 18787 Napa behind the St. Helena Sanitarium (Howell Mountain); Howell Mountain Comment
  UCD58901  Bromus laevipes Beecher Crampton 1957-6-4 4107 Napa Above Capell Creek. North end of Capell Valley. Comment
  UCD58930  Bromus laevipes Beecher Crampton 1957-6-4 4108 Napa Above Capell Creek. North end of Capell Valley. Comment
  UCD58957  Bromus laevipes Beecher Crampton 1965-6-30 7409 Napa Mt. Vaca, Vaca Mtns. 872 Comment
  UCD58968  Bromus madritensis Beecher Crampton 1962-5-16 6441 Napa 3 miles SW of Monticello Dam. Vaca Mtns. Markley Canyon. Along State Hwy. 128. Comment
  CAS-BOT-BC161829  Bromus rubens David L. Morgan 1961-5-16 s.n. Napa Napa. Cemetary. Comment
  POM262786  Bromus rubens J. C. Roos 1939-4-28 261 Napa Angwin, Howell Mtn. Comment
  UCD17981  Bromus rubens Ellen Dean; with Plant Biology 102 class 2001-4-14 707 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along North Decker Canyon Trail, N of trail. 182 Comment
  UCD83855  Bromus sterilis Ellen Dean; Kate Mawdsley 2010-4-30 5944 b Napa Valley Gate Vineyard, lands near intersection of Hwy 12 and Kirkland Ranch Rd. 71 Comment
  JEPS126118  Buddleja davidii Jake Ruygt 1990-9-17 2603 Napa North Kelly Road near Highway 29. Cuttings Wharf 7.5' Qua. Comment
  JEPS122999  Calamagrostis ophitidis Jake Ruygt 1984-5-19 1563 Napa Cedar Roughs, west slope. Quad: Chiles Valley. Comment
  UCD37118  Calamagrostis ophitidis Beecher Crampton 1957-5-16 4045 Napa Napa County, north end of Capell Valley, along Highway 128, above Capell Creek. Comment
  UCD57539  Calamagrostis ophitidis Beecher Crampton 1961-5-22 5877 Napa along State Hwy. 128, north end of Capell Valley above Capell Creek. Comment
  UCD57740  Calamagrostis rubescens Freed W. Hoffman 1944-7-7 1973 Napa North Coast Ranges, Trinity Road. Comment
  UCD18167  Calandrinia ciliata Eva Bayon; with Plant Biology 102 Class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley. Ca. 0.20 miles as the crow flies N of site of old town of Knoxville. 426 Comment
  JEPS52607  Calandrinia ciliata Willis L. Jepson 1893-4-27 Napa hills near Veteran's Home; Napa River Basin, Yountville Comment
  UC1103688  Callitriche marginata J. P. Tracy 1902-5-21 1626 Napa Head of Moore's Creek, 3 to 4 miles east of Angwin's; Howell Mountain 518 Comment
  UCD148769  Callitriche marginata Jake Ruygt 1996-3-30 3537 Napa Napa County; Jameson Vineyards, South Kelly Road. 54 Comment
  POM216219  Calochortus amabilis D. D. Keck 1933-5-28 2330 Napa Howell Mtn., N side, 1 mi above Pope Valley P.O. Comment
  UC1537212  Calochortus amabilis Gordon H. True Jr. 1938-6-21 740 Napa near Lokoya 365 Comment
  UCD169609  Calochortus amabilis Ayzik Solomeshch 2008-4 s.n. Napa north side of Pope Canyon Road ca 2 km west of intersection with Berryessa-Knoxville Road. 140 Comment
  UCD22717  Calochortus amabilis Charles Gasser 1978-4-22 15 Napa Chiles/Pope Valley Road, 1.6 miles SW of junction with lower Chiles Valley Road. Comment
  UCD48264  Calochortus amabilis K. Watts; K. Carpenter, S. Cruz, D. Goldberg, and M. Ochoa 2000-4-28 1 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., east side of rd. 531 Comment
  UCD48265  Calochortus amabilis R. Wenk; E. Anderson, L. Lina, A. Miles, and J. Waggoner 2000-4-22 5 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryesssa Road, on Southeast side of Devilhead Road. 515 Comment
  CAS-BOT-BC488484  Calochortus amabilis David D. Keck 1933-5-28 2330 Napa Howell Mountian, north side, 1 mile above Pope Valley, P.O. Comment
  CAS-BOT-BC488487  Calochortus amabilis Ira L. Wiggins 1949-4-20 12073 Napa Grassy slope along old toll road between Calistoga and Middletown, about 1.5 miles northeast of Calistoga. Comment
  CAS-BOT-BC488494  Calochortus amabilis John Thomas Howell 1926-3-21 1730 Napa Calistoga Road one mile below Patten's. Comment
  POM169455  Calochortus amabilis C. F. B 1903-4-20 2622 Napa Mt. St. Helena. Comment
  RSA145271  Calochortus amabilis Simonds 1928-05 SN Napa Browns Valley. Comment
  SEINET5725020 Image available Calochortus amabilis Richard Beaver 1965-1 151 Napa on a slope with various shrubs, sandy clay soil; 10 miles north of the junction of Highway 128 with Highway 121. Comment
  UC1537213  Calochortus luteus Gordon H. True Jr. 1938-6-21 739 Napa near Lokoya 365 Comment
  CAS-BOT-BC492539  Calochortus luteus Peter H. Raven 1952-5-31 4138 Napa Summit of hill sw. Rector Canyon 304 Comment
  CAS-BOT-BC492544  Calochortus luteus Betty H. Johnson 1958-6-8 610 Napa Near St Helena River, 6.4 mi. S.W. of Middleton Comment
  HSC43973  Calochortus luteus Robert M. Specht 1977-4-27 800 Napa N side of Morgan Valley Rd. 622 Comment
  IRVC19763  Calochortus luteus Anne E. Justice 1981-4-27 s.n. Napa 8.5 miles from Winters on Hwy 128, 1.5 mi before Monticello Dam. Comment
  UCD139531  Calochortus luteus M. Ensign 1943-5-28 322 Napa 21 miles from Monticello on road to Lower Lake. Comment
  UCR24142  Calochortus pulchellus John C. Roos 1939-4-18 278 Napa North Coast Range, Pope Valley Grade, Angwin 500 Comment
Read comments
Feb 17 2006
  RSA152416  Calochortus splendens Rimo C. Bacigalupi, L. T. Dempster, G. T. Robbins 1954-5-25 4507 Napa Above Soda Creek along State Highway 28, 8.2 miles east of Conn Lake (reservoir). Comment
  UCD166650  Calochortus splendens Jake Ruygt 1989-5-20 2333 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 441 Comment
  JEPS113984  Calochortus superbus Jake Ruygt 1986-6-9 1804 Napa 4.5 miles north of Westgate Drive on Atlas Peak Road. Capell Valley 7.5' Quad. Comment
  UCD139578  Calochortus superbus L. P. Thibault 1995-6-2 64 Napa East side of Lower Chiles Valley Road, 0.5 mile northwest of Highway 128. 300 Comment
  POM169458  Calochortus uniflorus C. F. Baker 1903-4-19 1979 Napa Calistoga. Comment
  CAS-BOT-BC496926  Calochortus vestae David D. Keck 1933-5-29 2364 Napa Pope Creek bridge south of Walters Springs Comment
  UC1876218  Calycadenia fremontii Gerald D. Carr 1971-9-20 666 Napa 4.2 mi N of Spanish Flat on Knoxville-Berryessa Rd. 152 Comment
  UC1876150  Calycadenia multiglandulosa Gerald D. Carr 1971-6-17 566 Napa Jct. of Howell Mt., Deer Park, and White Cottage Rds. Comment
  CAS-BOT-BC270613  Calycadenia multiglandulosa David D. Keck 1933-7-1 2467 Napa Howell Mountain, 2 miles SW of Pacific Union College Comment
  UC194184  Calycadenia multiglandulosa H. M. Hall 1915-8-12 10092 Napa Howell Mountain, near summit, along n road to Woodworth's 518 Comment
  CAS-BOT-BC270824  Calycadenia pauciflora Gerald D. Carr 1971-9-20 666 Napa 4.2 miles N of Spanish Flat on Knoxville - Berryessa Road 152 Comment
  CAS-BOT-BC270835  Calycadenia pauciflora John Thomas Howell 1930-10-19 5626 Napa 5 miles from Aetna Springs on Butts Canyon road to Middletown, near Napa - Lake County line Comment
  JEPS106902  Calycadenia pauciflora Jake Ruygt 1986-7-2 1853 Napa 4.5 miles north of Westgate Dr. on Atlas Peak Rd. 448 Comment
  UCD160805  Calycadenia pauciflora Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8685 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 488 Comment
  CAS-BOT-BC270827  Calycadenia pauciflora G. D. Carr 1971-9-20 672 Napa 0.8 mile NW of Knoxville Road 458 Comment
  POM298248  Calycadenia pauciflora H. M. Hall 1923-10-12 11926 Napa 16 miles SE of Lowerlake Comment
  RSA255521  Calycadenia pauciflora Gerald D. Carr 1972-8-21 728 Napa 2.4 miles east of Butts Canyon Road on Snell Valley Road 183 Comment
  UC1876268  Calycadenia pauciflora Gerald D. Carr 1971-9-20 668 Napa 1.8 mi SE of Lake Co. lne on Morgan Valley Rd. 125 yds N of road. Comment
  UCD63170  Calycadenia pauciflora Jake Ruygt 1992-7-11 3087 Napa Mead Ranch, Atlas Peak Rd. 475 Comment
  JEPS106926  Calycadenia truncata Jake Ruygt 1998-8-28 4108 Napa 1.2 miles north of Silverado Trail on Soda Canyon Road. 54 Comment
  JEPS106927  Calycadenia truncata Jake Ruygt 1978-8-20 397 Napa .5 miles north of Westgate Dr. on Atlas Peak Road 97 Comment
  JEPS120378  Calycadenia truncata Jake Ruygt 2004-7-31 4634 Napa Buzzards Roost, east of Stags Leap Comment
  CAS-BOT-BC271566  Calycadenia truncata subsp. truncata John Thomas Howell 1930-7-13 5344 Napa Lower slopes of Mt. St. Helena Comment
  CAS-BOT-BC271568  Calycadenia truncata subsp. truncata G. D. Carr 1971-10-23 682 Napa Howell Mt. Rd. ca. 0.8 S of Angwin 476 Comment
  CAS-BOT-BC271569  Calycadenia truncata subsp. truncata H. M. Hall 1923-10-15 11952 Napa St. Helena, base of hills east of town Comment
  RSA120932  Calycanthus occidentalis G. D. Barbe 1957-7-4 371 Napa 1 mile beyond the Christian Bros. Mt. LaSalle School, 7 miles W of State Hwy 29 and Napa on Redwood Rd. Comment
  RSA456153  Calycanthus occidentalis E. S. Spalding 1924-7-4 s.n. Napa White Sulphur Springs Canon, near St. Helena. Comment
  RSA602914  Calycanthus occidentalis Joseph A. Ewan 1934-4-30 8850 Napa Near White Cottages below Pope Valley. Comment
  SBBG2303  Calycanthus occidentalis H. E. Cott 1949-5-22 A- 127 Napa St Hwy 37, ca. 15 mi N of Napa Comment
  UC126481  Calycanthus occidentalis Harley P. Chandler Sep 7 1906-Sep 14 1906 7133 Napa Alta Loma Ranch; Howell Mountain 487 Comment
  UCD15613  Calycanthus occidentalis Lisa Montany 1985-6-1 33 Napa Highway 128, 0.5 miles west of Conn Dam, north of road in clearing. 76 Comment
  SEINET8690276 Image available Calycanthus occidentalis Marion Ownbey, Ruth P. Ownbey 1938-7-9 1700 Napa 6 mi NE of Napa Comment
  CAS-BOT-BC221552  Calystegia collina subsp. collina R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6682 Napa Butt's [Butts] Canyon, 10 mi. N. of Howell Mt. Comment
  CDA33443  Calystegia collina subsp. collina Dale Woods, V. Popescu 2010-6-28 Napa Along Devilshead-Knoxville Road. Comment
  JEPS120397  Calystegia occidentalis Jake Ruygt 1985-5-18 1597 Napa Foss Valley Comment
  UCD160804  Calystegia occidentalis subsp. occidentalis Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8684 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 470 Comment
  RSA52706  Calystegia purpurata I. L. Wiggins 1949-4-30 12080 Napa Along old toll road between Calistoga and Middletown. Comment
  UC879413  Calystegia purpurata M. Focht and R. Scott 1940-1-1 9590 Napa near cliff seven mi from Monticello (Pope Creek); North Bay Counties, , 7 mi from Monticello Comment
  UCD161783  Calystegia purpurata Jake Ruygt 2000-7-8 4282 Napa Devilhead Road near Lone Pine Thicket. 664 Comment
  CAS-BOT-BC224626  Calystegia purpurata subsp. purpurata Saichi Kawahara 1968-4-20 333 Napa Oakville Grade, 4 miles west of Oakville 228 Comment
  JEPS106401  Calystegia purpurata subsp. purpurata Jake Ruygt 1986-4-5 1682 a Napa north of Elkhorn Peak on county line 458 Comment
  UCD48871  Calystegia purpurata subsp. purpurata E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 7 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd., N of jct with South Decker Canyon Rd.; on a SW-facing slope on upslope of road. 237 Comment
  JEPS31722  Camissonia contorta Willis L. Jepson 1893-6-26 14478 Napa Howell Mt. Napa River Basin Comment
  HSC43955  Camissonia ignota Robert M. Specht 1977-4-19 697 Napa Above drainage running NE from Adams Creek. 518 Comment
  CAS-BOT-BC37585  Cardamine californica John Thomas Howell 1931-4-2 6081 Napa Summit of Wooden Valley Grade, 8 miles east of Napa. Comment
  POM225547  Cardamine californica var. integrifolia J. T. Howell 1931-4-3 6150 Napa Near summit of Butts Canyon Road, to Middletown from Aetna Springs. Comment
  RSA15679  Cardamine californica var. integrifolia C. B. Wolf 1928-2-25 1489 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  RSA17721  Cardamine californica var. integrifolia Elmer I. Applegate 1932-3-22 7032 Napa Crater region, Mayacama Mountains; 4 miles N of Calistoga. Comment
  JEPS53370  Cardamine californica var. integrifolia Willis L. Jepson 1896-2-23 13396 Napa Howell Mountain Napa River Basin, Howell Mountain Comment
  POM369327  Cardamine californica var. integrifolia Dr H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. Comment
  JEPS53322  Cardaria draba Willis L. Jepson 13398 Napa Napa Valley, Oak Knoll, between Napa and Yountville Oak Knoll; Napa River Basin, Napa Valley, Oak Knoll Comment
  SEINET13331011 Image available Carduus nutans T. C. Fuller 1958-5-1 s.n. Napa Calistoga Comment
  CDA6878  Carduus pycnocephalus T. C. Fuller 1959-5-15 2432 Napa Fanner property, Sanitarium area. 0 Comment
  CDA6879  Carduus pycnocephalus T. C. Fuller 1959-5-15 2432 Napa Fanner property, Sanitarium area. 0 Comment
  CDA6880  Carduus pycnocephalus T. C. Fuller 1958-5-1 451 Napa State Highway 53 to Middletown, 2.5 miles north of Calistoga. 0 Comment
  UCD41308  Carduus pycnocephalus Andrea Douglas; E. Dean, M. Bibbo, and T. Pitman 2004-5-1 1 Napa Southern end of McLaughlin UC Reserve, NE side of Knoxville-Berryessa Rd, W side of Knoxville Creek, 1 road mile S of the gate to old town of Knoxville. 353 Comment
  SBBG14800  Carduus pycnocephalus subsp. pycnocephalus P. H. Raven 1962-5-31 17922 Napa ca. 3.8 mi N of jct of St Hwy 37 with rd to Fairfield Comment
  UC50828  Carex amplifolia J. P. Tracy 1902-5-21 1606 Napa 3-4 mi e Angwin's (head of Moore's Creek); Moore's Creek 365 Comment
  UCD73493  Carex densa Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  CAS-BOT-BC35068  Carex densa Lewis S. Rose 1935-6-4 35205 Napa East slope Mount St. Helena. Comment
  CAS-BOT-BC35069  Carex densa Lewis S. Rose 1935-6-4 35205 Napa East slope Mount St. Helena. Comment
  CAS-BOT-BC35074  Carex densa Peter H. Raven 1950-5-6 2019 A Napa Near Rt. 29, on Old Faithful Geyser road 2 miles north of Calistoga. Comment
  UC50829  Carex densa J. P. Tracy 1902-5-26 1637 Napa near Calistoga; Napa Valley 91 Comment
  UC577192  Carex densa Lewis S. Rose 1935-6-4 35205 Napa e slope Mt. St. Helena Comment
  UCD161514  Carex densa Jake Ruygt 1990-4-7 2463 Napa Veteran's Peak, at homestead. 231 Comment
  JEPS121349  Carex dudleyi Jake Ruygt 1996-4-20 3619 c Napa Jameson Canyon Vineyards entry road. Comment
  CAS-BOT-BC19983  Carex feta Peter H. Raven 1952-5-26 4043 Napa Howell Mountain. 548 Comment
  CDA29152  Carex gracilior D. G. Kelch, Daniel Weinstein 2009-6-21 9 .45 Napa Near Skyline Park. Comment
  CAS-BOT-BC32052  Carex multicaulis Alice Eastwood 1922-5-4 1283 Napa In woods, Mt. St. Helena. Comment
  CAS-BOT-BC32123  Carex multicaulis John Thomas Howell 1926-3-28 1768 Napa St. Helena Creek near Patten's Comment
  UCD168730  Carex multicostata Stephen P. Rae; A. Solomeshch 2007-5-25 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  JEPS81260  Carex nudata Edward Lee with A. Carter and E. Crum 1936-3-15 1807 Napa 8 mi out Rutherford (on Rutherford-Pope Valley road) Comment
  RSA3945  Carex nudata I. L. Wiggins 1932-3-12 5753 Napa Rocky bed of N. Fork of Napa River, 1 mile N. of Calistoga. Comment
  CAS-BOT-BC119513  Carex nudata Lewis Samuel Rose 1961-3-30 61024 Napa Conn Reservoir. Lake Hennessy stream bank. 60 Comment
  JEPS63673  Carex nudata W. L. Jepson 1920-7-12 9070 Napa upper Chiles Creek below old mill; Napa Range, Chiles Creek Comment
  SEINET10711635  Carex nudata Wilhelm N. Suksdorf 1913-7-28 Suksdorf 713 Napa In shade near the water of the Napa River. Comment
  UCD161614  Carex nudata Jake Ruygt 2002-3-23 4370 Napa Snell Valley, Missimer Wildflower Preserve. 219 Comment
  UCD140700  Carex obnupta P. B. Kaufman 1950-4-28 35 Napa adjacent to U.S. Highway 99W bridge, 3.9 miles northwest of Davis. Comment
  JEPS121328  Carex praegracilis Jake Ruygt 1996-5-14 3700 Napa White Cliff Springs; Elder Valley; (Sabini property). Comment
  UC1152079  Carex serratodens Joseph P. Tracy 1950-5-19 18655 Napa Conn Valley Reservoir Comment
  UCD161699  Carex subbracteata Jake Ruygt 2010-5-20 5572 Napa North Whitehall Lane at the first slope encountered traveling west. 70 Comment
  UC577191  Carex subfusca Lewis S. Rose 1935-6-4 35206 Napa e slope Mt. St. Helena Comment
  JEPS35587  Castilleja L. R. Heckard 1964-6-11 1367 Napa near Conn Park (along State Hwy 128, at w edge of Lake Hennessey); Lake Hennessey Comment
  RSA296388  Castilleja affinis W. L. Jepson 1938-5-24 18839 Napa Near Four Corners, Howell Mountain. Comment
  RSA296442  Castilleja affinis R. W. Cruden 1967-5-27 1247 Napa About 3 miles northeast of Angwin, Ink Grade. 488 Comment
  UCD122178  Castilleja affinis M. Wiesendanger 1927-5-4 693 Napa Monticello-Napa Rd. Comment
  POM15999  Castilleja affinis R. H. Platt 1898-4-3 s.n. Napa Vacaville. Comment
  JEPS110636  Castilleja affinis subsp. affinis Jake Ruygt 2001-3-31 4303 Napa ridge between Newell and American Canyon; Newell Open Space 198 Comment
  UC457174  Castilleja affinis subsp. affinis David D. Keck 1931-4-2 1042 Napa 10 mi from Napa (between Wooden Valley and Monticello, e base of Napa Range); Napa Range Comment
  CAS-BOT-BC435519  Castilleja ambigua var. meadii Jake Ruygt 2011-5-28 5793 Napa Giles Mead Ranch, W of Atlas Peak Rd., 2.4 km S of Foss Valley 487 Comment
  UCD67493  Castilleja applegatei subsp. martinii D. Sanchez-Mata 1996-3-26 s.n. Napa Putah Creek. Lake Berryessa. 350 Comment
  OBI54929  Castilleja applegatei subsp. martinii Kathleen Faustini 1980-5-4 27 Napa Monticello dam Comment
  UCD122290  Castilleja applegatei subsp. martinii Robert Kehlor 1951-4-28 39 Napa In Putah Canyon above Recreation Beach, 10 miles west of Winters. Comment
  JEPS74864  Castilleja attenuata T. I. and F. M. Chuang 1975-5-4 7505 Napa 5.7 mi e Pope Valley Comment
  JEPS110626  Castilleja densiflora subsp. densiflora Jake Ruygt 1992-4-29 2916 Napa Johnson's Meadow, Wild Horse Valley Ranch 420 Comment
  UCD19866  Castilleja exserta C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-11 1199 Napa Lower slopes of Mount St. Helena, view spot north of Calistoga, along Hwy 29. Comment
  UCD122551  Castilleja foliolosa R. L. Smith 1948-5-8 s.n. Napa 6 miles north of Aetna Springs, Pope Valley. Comment
  UCD48221  Castilleja foliolosa P. Mayers; M. Carson, A. Haselby, J. Howard 2000-4-29 18 Napa Napa County, McLaughlin Reserve, near Yolo County line. 670 Comment
  UCD48222  Castilleja foliolosa A. Hufton; S. Burgess, J. Pierner, A. Ryan, and B. Takahashi 2000-4-29 8 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of the old town of Knoxville. 609 Comment
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Jan 14 2009
  UCD48226  Castilleja foliolosa C. Owens; A. Atamian, R. Brush, S. Olmsted, M. Furuyama 2000-4-29 16 Napa Border of Yolo and Napa County, McLaughlin Reserve, one as the crow flies mile north of the old town of Knoxville, 300 meters east of old road in a burned area (burned Oct 1999). 640 Comment
  SEINET12329994  Castilleja foliolosa F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -306 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 750 Comment
  UC765676  Castilleja minor subsp. spiralis R. F. Hoover 1938-9-23 3860 Napa canyon of south fork of Butts Creek Comment
  UC1607995  Castilleja minor subsp. spiralis Donald G. Nelson 1940-8-7 707 Napa about 3 mi nw Knoxville (at the sign of Harrison Mines); Coast Range Mountains Comment
  JEPS11160  Castilleja rubicundula subsp. lithospermoides Rachael Wilcox 1944-5-9 Napa Conn Valley Comment
  JEPS10645  Castilleja rubicundula subsp. lithospermoides C. F. Sonne Apr 1887 Napa Comment
  JEPS77483  Castilleja rubicundula subsp. lithospermoides Douglas W. James Jr. 1973-5-5 88 Napa Las Posadas State Forest; not far from the 4-H pool 335 Comment
  JEPS110637  Castilleja rubicundula subsp. rubicundula Jake Ruygt 2007-5-29 2194 Napa Cedar Valley 597 Comment
  JEPS2513 Image available Castilleja spiralis W. L. Jepson 1897-7-13 21113 Napa Butt's Canyon; ; Butt's Canyon, (Pope Valley to Coyote Valley), Napa Co. Comment
  JEPS129060  Caulanthus flavescens Jake Ruygt 1993-5-1 3242 Napa Pocock Creek, north of Cedar Creek Road. Jericho Valley 7.5' Quad. Comment
  SBBG122273  Ceanothus confusus D. O. Burge 2008-5-31 1005 b Napa Spring Mtn Rd near small reservor at BM 626, 1.7 rd mi W of intersection with Madrona Ave, York Crk, Mayacmas Mtns 200 Comment
  UC18314  Ceanothus confusus Willis L. Jepson 1893-5-4 Napa Mt. St. Helena, trail to first summit Napa River Basin Comment
  RSA399087  Ceanothus cuneatus Bonnie C. Templeton 1957-6-26 s.n. Napa Between Calistoga and Petrified Forest Comment
  UCD21545  Ceanothus cuneatus B. Pekin; Ellen Dean, Mark Bibbo, Alex Lee 2003-4-26 4 Napa California, Napa County, on Bureau of Land Management land S of McLaughlin Reserve. West of Devil Head Road, next to Hunting Creek, next to the Hunting Creek Campground parking lot. 335 Comment
  RSA0056195  Ceanothus cuneatus Keith E. Hoffmaster 1946-3-23 1225 Napa Napa range, along Napa-Monticello road. Comment
  CAS-BOT-BC48937  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-4-27 DOB 899 b Napa Vaca Mountains, on east-west trending ridge south of East Mitchel Canyon, 15.2 road miles (24.3 km) west of Hwy 505 270 Comment
  CAS-BOT-BC49800  Ceanothus divergens Walter Knight; Cliff Schmidt 1987-2-27 6058 Napa Korturn Canyon Road 274 Comment
  CAS-BOT-BC49801  Ceanothus divergens Carl B. Wolf 1928-5-4 1853 Napa Mt. St. Helena Comment
  CAS-BOT-BC64437  Ceanothus divergens Brandegee 1889-4-1 74 Napa Mt. St. Helena. Comment
  CAS-BOT-BC64440  Ceanothus divergens John Thomas Howell 1941-3-9 16154 Napa W. of Rutherford. Comment
  CAS-BOT-BC64441  Ceanothus divergens John Thomas Howell 1941-6-21 16320 Napa Hills sw. of St. Helena. Comment
  JEPS110718  Ceanothus divergens Jake Ruygt 1979-3-25 460 Napa 1.5 miles west of HWY 29 on Whitehall Lane 128 Comment
  RSA26416  Ceanothus divergens J. T. Howell 1941-4-5 s.n. Napa Franz Valley Comment
  SJSU14047  Ceanothus divergens C. L. Schmidt 1987-2-27 1136 Napa Kortum Canyon Rd c. 2 mi SE of Calistoga 298 Comment
  RSA261717  Ceanothus foliosus Katherine Brandegee 1889-04 s.n. Napa Mt St. Helena Comment
  RSA399074  Ceanothus foliosus Bonnie C. Templeton 1957-6-27 s.n. Napa 4 miles up trinity road near the junction to Oakville Comment
  SJSU5714  Ceanothus foliosus L. S. Rose 1964-4-2 64018 Napa 2 mi SW of Angwin 243 Comment
  UC1070630  Ceanothus foliosus A. Lewis 1932-5-13 72 Napa Dry Creek Napa quad. 213 Comment
  UC18327  Ceanothus foliosus Willis L. Jepson 1893-5-1 Napa Franz Valley Grade at divide; Napa River Basin Comment
  UC79972  Ceanothus foliosus Katharine Brandegee April 1889 Napa Mt. St. Helena Comment
  UC870558  Ceanothus foliosus Alice Eastwood and John Thomas Howell 1939-6-11 7430 Napa hills to w Calistoga Comment
  UCD73844  Ceanothus foliosus Ellen Dean; S. Rae 2008-5-21 4979 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 244 Comment
  CAS-BOT-BC50912  Ceanothus foliosus var. foliosus Paul F. Covel 1940-4-28 1705 Napa Grade near Sanatarium Comment
  CAS-BOT-BC50924  Ceanothus foliosus var. foliosus Carl B. Wolf 1928-5-3 1827 Napa Base of Mt. St. Helena Comment
  UCD149675  Ceanothus foliosus var. foliosus Stephen P. Rae; Ayzik Solomeshch 2006-4-14 s.n. Napa 2 km south of Calistoga, ca. 1.5 km west of Highway 29 at 1755 Diamond Mountain Road. Pierce Vineyard Property. 375 Comment
  CAS-BOT-BC63747  Ceanothus incanus H. E. McMinn 1922-3-27 104 Napa Near Mt. St. Helena. Comment
  UC424875  Ceanothus incanus Milo S. Baker 1929-3-27 3423 b Napa North slope Mt. St. Helena along hwy Comment
  CAS-BOT-BC474706  Ceanothus integerrimus Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca 2 km W of intersection with Berryessa-Knoxville Road 140 Comment
  CAS-BOT-BC50793  Ceanothus integerrimus Brandegee 1890-6-1 21 Napa Toll House, Mt. St. Helena Comment
  JEPS129028  Ceanothus jepsonii Jake Ruygt 2016-6-6 6277 Napa Okin Ranch, Chiles Valley. St. Helena 7.5' Quad. Comment
  JEPS42332  Ceanothus jepsonii Willis L. Jepson 1920-7-12 9069 Napa near Old Chiles Mill (Chiles Creek hills); Napa Valley Comment
  OBI10455  Ceanothus jepsonii R. L. Hoover 1968-4-20 65 Napa Butts Cyn rd at napa-Lake cnty boundary, on E side of road Comment
  UCR136728  Ceanothus jepsonii Lester Rowntree 1930-7-15 s.n. Napa Coast Range, Sage Canyon 305 Comment
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Nov 27 2007
  CAS-BOT-BC83783  Ceanothus jepsonii var. albiflorus D. O. Burge; C. Miller 2007-6-12 940 b Napa Mayacmas Mountains, at roadside on Livermore Road 535 Comment
  UCD19331  Ceanothus oliganthus M. A. Bibbo; E. Dean 2001-7-6 23 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Near point of Quail Ridge, along upper road by powerline, ca. 0.2 air miles from jct of W and E roads. 312 Comment
  SEINET11191994  Ceanothus oliganthus var. oliganthus R. R. Halse 2013-3-27 8751 Napa Along State Hwy. 128 ca. 8.7 miles W of Winters, just west of Monticello Dam, south end of Lake Berryessa. 143 Comment
  CAS-BOT-BC51563  Ceanothus oliganthus var. sorediatus David D. Keck 1931-4-2 1011 Napa Foot of Wooden Valley Grade, West base of Napa Range, 4.5 miles NE. of Napa 90 Comment
  UCD112326  Ceanothus oliganthus var. sorediatus J. E. Street 1950-4-24 s.n. Napa 8 miles north of Wooden Valley. Comment
  CAS-BOT-BC53216  Ceanothus parryi Brandegee 1890-4-1 20 Napa Toll House, Mt. St. Helena Comment
  CAS-BOT-BC53222  Ceanothus parryi Alice Eastwood 1918-5-1 6854 Napa Mt. St. Helena Comment
  RSA182686  Ceanothus parryi D. D. Keck 1931-4-2 10112 Napa Foot of Wooden Valley Grade, W base of Napa Range, 4.5 miles NE of Napa. 90 Comment
  UC931951  Ceanothus parryi Verne and Alva Grant 1946-5-26 7633 Napa southeast slope of Mt. St. Helena 1066 Comment
  UCSB16719  Ceanothus parryi Van Rensselaer, Maunsell 1938-4-26 Napa Wooden Valley Grade Comment
  CAS-BOT-BC52185  Ceanothus purpureus Peter H. Raven 1953-5-2 s.n. Napa Soda Creek Canyon 2 miles below Foss Valley 335 Comment
  CAS-BOT-BC52192  Ceanothus purpureus s.n. Napa unspecified Comment
  CAS-BOT-BC83729  Ceanothus purpureus D. O. Burge 2007-5-4 905 b Napa Atlas Road, at roadside 5.7 road miles (9.1 km) N of intersection with Monticello Road (SR 121) 410 Comment
  CDA11156  Ceanothus purpureus G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11567 Napa North Coast Biodiversity Arena; Howell Mtn., W face, 2-3 mi. W of Angwin, alongside Howell Mtn Rd. Comment
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Jul 28 2008
  CHSC106015  Ceanothus purpureus Ayzik Solomeschch; Stephen Rae 2007-7-8 Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. UTM: 10S, 565647, 4246590. 215 Comment
  JEPS2522 Image available Ceanothus purpureus W. L. Jepson 1893-4-28 Napa mountains n Mt. George; Napa River Basin; Mts. N of Mt. George, Napa River Basin Comment
  LA44991  Ceanothus purpureus Lewis S. Rose; 1937-4-4 37021 Napa Gorges N. of Mt. George near Napa; Wooden Valley grade, 6 mi. NE of Napa 182 Comment
  RSA755230  Ceanothus purpureus Dylan O. Burge 2007-5-4 DOB 904 c Napa Wooden Grade, NE of Mount George, roadside on Monticello Road (SR 121), 3.3 road miles E of Atlas Peak Road or 2.3 road miles W of Wooden Valley Road, at mile marker 13.88, 9.28 km 46 degrees True ENE of Napa. 360 Comment
  UC483677  Ceanothus purpureus Milo S. Baker 1931-4-1 5098 Napa In Canyon 5 miles NE of Napa on Monticello Road, north side Comment
  UC870640  Ceanothus purpureus Lewis S. Rose 1937-4-4 37021 Napa Gorges N of Mt George near Napa. Wooden Valley Grade, 6 mi NE of Napa 182 Comment
  UCD123868  Ceanothus purpureus D. O. Burge 2007-5-4 904 e Napa Wooden Grade, north-east of Mount George, roadside on Monticello Road (SR 121), 3.3 road miles (5.3 km) east of Atlas Peak Road or 2.3 road miles (3.7 km) west of Wooden Valley Road, at mile marker 13.88, 9.28 km 46 deg. (True) ENE of Napa. 360 Comment
  UCSB40793  Ceanothus purpureus Haller, John 1979-5-4 Napa Mead Ranch, near Atlas Peak Road, about 5 miles (by road) north of State Highway 121 and 9 miles north of Napa 487 Comment
  POM172088  Ceanothus purpureus Lester Rowntree 1930-7-15 s.n. Napa On Hogsback, 7 miles east of Napa Comment
  JEPS110663  Ceanothus sonomensis Jake Ruygt 1982-3-20 1134 Napa Mt. St. John 530 Comment
  SEINET5743575 Image available Ceanothus sorediatus Susan J. Kettner 1967-1 s.n. Napa 5 miles W of Monticello Dam on State Hwy 128.; Monticello Dam 134 Comment
  SD129755  Centaurea calcitrapa Donald G. Nelson 1940-8-7 699 Napa Highway from Napa to Wooden Valley, north slopes of George Mountain. Alon Sarco Creek (?). 152 Comment
  UCD18004  Centaurea melitensis Ellen Dean; with Plant Biology 102 class 2001-4-28 735 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Downslope of West Rd., ca. 2400 feet as the crow flies NW of jct. with South Decker Canyon Rd. Along old road that leads NW and downslope along a ridge. 242 Comment
  UCD130047  Centaurea melitensis Charles B. Heiser Jr. 1947-5-17 1909 Napa 5 miles southwest of Monticello in road to St. Helena. Comment
  JEPS106532  Centaurium muehlenbergii Jake Ruygt 1982-6-21 1337 Napa Suscol plain between Kaiser Steel and HWY 29 (221) 4 Comment
  JEPS106535  Centaurium muehlenbergii Jake Ruygt 1998-7-26 4102 Napa .25 mile west of Mt. Veeder Road on Redwood Road 109 Comment
  RSA391524  Centaurium muehlenbergii Robert Gustafson, Don Reynolds 1983-6-7 2741 Napa Snell Valley Road, about one mile northeast from the junction of Butts Canyon Road. Comment
  UCD83404  Centaurium tenuiflorum Jake Ruygt 2004-10-10 4682 Napa 0.1 mi N of Wine Country Rd. on Solano Ave. 22 Comment
  JEPS46940  Centaurium trichanthum W. L. Jepson 1930-10-19 15699 Napa Butts Canyon, ne Napa Co Butts Canyon Comment
  JEPS46950  Centaurium trichanthum Willis L. Jepson 1892-7-28 14639 Napa near Knoxville Comment
  JEPS38176  Centromadia parryi subsp. parryi Willis L. Jepson 1894-7-19 Napa Upper Napa Valley Napa River Basin Comment
  UC89053  Centromadia parryi subsp. parryi T. S. Brandegee 1892-8-1 Napa Calistoga Comment
  UC894336  Centromadia parryi subsp. parryi Alice Eastwood 1918-9-3 7960 Napa Calistoga Comment
  UC913083  Centromadia parryi subsp. parryi David D. Keck 1933-11-10 2715 Napa Calistoga Comment
  CAS-BOT-BC279253  Centromadia pungens subsp. pungens John Thomas Howell 1929-10-26 4542 Napa 9 miles north of Vallejo Comment
  CAS-BOT-BC222945  Cephalanthus occidentalis H. E. McMinn 1922-8-2 360 Napa Putah Canyon Comment
  HSC4108  Cerastium glomeratum W. L. Jepson 1921-5-6 9178 Napa Calistoga 109 Comment
  JEPS107195  Cercis occidentalis Jake Ruygt 1997-3-18 3809 Napa Conn Valley Road, 2 miles east from Silverado Trail 146 Comment
  RSA195520  Cercis occidentalis John H. Thomas 1955-5-21 5156 A Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 168 Comment
  CHSC79353  Cercocarpus betuloides Beecher Crampton 1966-5-10 7715 Napa 9 miles east of Rutherford on State Hwy. 128. Comment
  UCD33088  Cercocarpus betuloides Beecher Crampton 1966-5-10 7715 Napa 9 miles east of Rutherford on State Hwy. 128. Comment
  CHSC114041  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-3-27 8754 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  UC12148  Cercocarpus betuloides var. betuloides Mrs. D. O. Hunt 1899-3-6 Napa St. Helena Comment
  UC12149  Cercocarpus betuloides var. betuloides W. L. Jepson 1896-2-22 Napa near Eden (e of Angwin, Howell Mountain); Howell Mountain 914 Comment
  UCD170202  Cercocarpus betuloides var. betuloides Daniel Potter 2015-3-14 755 Napa Knoxville Wildlife Area, east of Berryessa-Knoxville Road and Eticuera Creek. 242 Comment
  UCD170660  Chaenactis glabriuscula var. glabriuscula 2018-4-28 1 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 139 Comment
  CAS-BOT-BC284574  Chaenactis glabriuscula var. heterocarpha Peter H. Raven 1951-5-20 2852 Napa Hills W. Oakville 548 Comment
  JEPS106931  Chaenactis glabriuscula var. heterocarpha Jake Ruygt 1980-4-22 856 Napa .7 miles northwest of Knoxville Rd. on Berryessa-Knoxville R 457 Comment
  UC699713  Chaenactis glabriuscula var. heterocarpha W. L. Jepson 1894-5-1 Napa ridges above Napa Valley (Conn Valley) Napa Valley (Conn Valley); above Napa Valley (Conn Valley) Comment
  UCD32574  Chaenactis glabriuscula var. heterocarpha Beecher Crampton 1954-5-20 1928 Napa 8 miles southwest of Monticello, along highway 128. Comment
  UCD41324  Chaenactis glabriuscula var. heterocarpha Ellen Dean; T. and M. Starbuck 2004-4-3 2000 Napa McLaughlin UC Reserve. Along Knoxville-Berryessa Rd. W of turn off to old town of Knoxville, N side of road, about 0.5 airline miles WSW of site of old town of Knoxville. 437 Comment
  HSC100736  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-10-27 16486 Napa Below the high water line of Lake Berryessa, ~100 yd. E of Eticuera Creek, ~50 yd. S of Eticuera Parking Area at the NE end of causeway, on S side of Berryessa Knoxville Rd., 20 (air) mi. NW of Winters. 130 Comment
  JEPS106425  Chamaesyce serpillifolia subsp. serpillifolia Jake Ruygt 1978-10-22 425 Napa .3 miles north of Airport Rd., Sheehy Cr 6 Comment
  UCD20504  Cheilanthes intertexta E. Dean; w/ Rob Weiss, Layne Huiet, and Kate Mawdsley 2002-6-2 1075 Napa McLaughlin UC Reserve. SE reaches of Research Hill, rocks S of Parking area at jct of old 4WD road with Knoxville-Berryessa road. NE side of Hunting Creek. 609 Comment
  JEPS59711  Chenopodium ambrosioides W. L. Jepson 1894-11-5 Napa St. Helena Comment
  RSA90500  Chenopodium californicum Anonymous 1936-04 8179 Napa A mile or so north of Knoxville. Comment
  JEPS126101  Chenopodium murale Jake Ruygt 1986-10-12 1918 Napa Trancas Street east of Highway 29, Napa. Napa 7.5' Qua. Comment
  UCD160735  Chlorogalum pomeridianum Ellen Dean 2015-5-23 8787 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 231 Comment
  CAS-BOT-BC498812  Chlorogalum pomeridianum Peter H. Raven 1952-5-31 4122 Napa Hills s.w. of Rector Canyon 152 Comment
  POM262795  Chorizanthe membranacea J. C. Roos 1939-5-6 294 Napa Near Three Peaks, Napa Range 915 Comment
  JEPS120358  Chorizanthe stellulata Jake Ruygt 2010-5-13 5550 Napa Snell Valley, Missimer Preserve. Aetna Springs 7.5' Quad. Comment
  UCD127359  Cicuta douglasii Lloyd Harwood 1972-11-6 s.n. Napa Wild Horse Valley Ranch. Comment
  CAS-BOT-BC286576  Cirsium occidentale var. venustum Peter H. Raven 1950-6-20 2328 Napa St. Helena to Conn Valley, Napa Range Comment
  CDA1541  Cirsium quercetorum M. Foskett 1976-5-4 s.n. Napa Lake Herman Sky Valley Ranch, E of Vallejo. 0 Comment
  RSA0070870  Cirsium remotifolium J. T. Howell 1941-6-21 16314 A Napa Hills SW of St. Helena. Comment
  JEPS106936  Cirsium remotifolium var. odontolepis Jake Ruygt 1991-5-25 2689 Napa about .1 mile north of Hill Rd. on Howell Mtn. Rd. 551 Comment
  JEPS110770  Clarkia affinis Jake Ruygt 1996-5-13 3674 Napa Wantrop Wildlife Sanctuary, Hardin Road, Pope Valley 475 Comment
  UCD49178  Clarkia affinis M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 12 Napa Quail Ridge UC Reserve, northern tip of ridge, in open grassy area N of power lines. 274 Comment
  UCD21496  Clarkia affinis Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4398 Napa Quail Ridge Reserve. 249 Comment
  UC1299420  Clarkia amoena Freed W. Hoffman 1947-6-18 1649 Napa Pope Valley road North Coast Ranges Comment
  JEPS110769  Clarkia amoena subsp. huntiana Jake Ruygt 1987-6-6 2037 Napa Redwood Rd. at Mt. Veeder Rd. 109 Comment
  SBBG115750  Clarkia concinna B. Crampton 1953-5-19 1300 Napa 9 mi E of Rutherford Comment
  UCD160214  Clarkia concinna James A. Neilson Jr. 1974-5-5 2927 Napa Oakville Grade and Dry Creek Road. (Elevation and coordinates estimated by label-maker using topo map.) 175 Comment
  SEINET5740167 Image available Clarkia concinna Sondra Pearman 1964-1 16 Napa State Hwy 128, ca. 3 miles SW of Monticello Dam.; Monticello Dam Comment
  JEPS43613  Clarkia concinna subsp. concinna W. L. Jepson 1896-6-2 14426 Napa mouth Conn Valley (Conn Ridge); Napa Valley Comment
  UCD164690  Clarkia concinna subsp. concinna L. P. Thibault 1995-6-2 58 Napa South side of Highway 128 approximately 2 miles east of Lower Chiles Valley Road. 300 Comment
  POM271463  Clarkia concinna subsp. concinna Lyman Benson 1935-5-19 6662 Napa S. Base Mount St. Helena, CA Hwy 29. Mayacamas Mt. range, Napa River watershed 213 Comment
  UCD104547  Clarkia gracilis R. C. Herner 1965-5-8 24 Napa State Highway 128, 8 miles W of Monticello Dam. Comment
  JEPS13167 Image available Clarkia gracilis subsp. gracilis W. L. Jepson 1894-5-1 13339 Napa mouth Conn Valley; Napa River Basin; Conn Valley, Napa River Basin Comment
  RSA495971  Clarkia gracilis subsp. tracyi L. D. Gottlieb 1988-5-24 8819 Napa On Route 128 between turnoff to Route 121 and Spanish Flat Road at milepost 18.71 Comment
  UCD167272  Clarkia gracilis subsp. tracyi Jake Ruygt 2007-6-21 5225 Napa Las Posadas State Forest, between Moore Creek and Uncle John Creek. 353 Comment
  JEPS110732  Clarkia purpurea subsp. quadrivulnera Jake Ruygt 1998-6-24 4052 Napa Rocky Ridge, east of Apple Tree Canyon. 676 Comment
  JEPS43562  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1904-6-3 2431 Napa St. Helena to Howell Mt. Comment
  CAS-BOT-BC163827  Clarkia purpurea subsp. quadrivulnera John Thomas Howell 1933-6-4 11387 Napa Hills east of Napa Comment
  UCD167273  Clarkia purpurea subsp. quadrivulnera Jake Ruygt 1992-5-25 3001 Napa West side of south lake, Wild Horse Valley Ranch. 457 Comment
  CAS-BOT-BC165607  Clarkia unguiculata James L. Reveal 1987-6-7 6392 Napa Vaca Mountains, along the Gates Canyon Road, 2 miles west of Pleasant Valley Road, about 5.5 miles west-northwest of Vacaville 182 Comment
  CDA38066  Clarkia unguiculata Robin Breckenridge 1989-6-8 s.n. Napa St. Helena; Crystal Springs at Silverado Trail. 0 Comment
  POM215776  Clarkia unguiculata D. D. Keck 1933-5-29 2353 Napa Pope Creek bridge south of Walters Springs. Comment
  UC1301112  Clarkia unguiculata Helen K. Sharsmith 1962-6-3 5103 Napa Napa-Soda Springs Road San Francisco Bay Region 152 Comment
  HSC17756  Claytonia exigua subsp. exigua C. B. Wolf 1928-2-25 1495 Napa Mt. St. Helena Grade, 5 mi. N of Calistoga Comment
  CAS-BOT-BC439373  Claytonia gypsophiloides Rimo Bacigalupi 1926-3-28 1269 Napa Patton's Toll House along old road, Mt. St. Helena Comment
  RSA31697  Claytonia gypsophiloides A. A. Heller 1929-3-16 s.n. Napa Grade near foot of Mt. St. Helena. Comment
  UC725315  Claytonia gypsophiloides A. A. Heller 1929-3-16 14816 Napa grade near foot of Mt. St. Helena Comment
  UCD148798  Claytonia parviflora Ellen Dean; Diana Hickson 2014-4-29 8105 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  CAS-BOT-BC233835  Claytonia parviflora subsp. parviflora R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6678 Napa Butt's Canyon, 10 mi. N. of Howell Mt. Comment
  CHSC25144  Claytonia parviflora subsp. parviflora J. E. Beitler 1970-4-12 17 Napa Found at bottom of N.E. rail support below bridge over dam of Lower Spring Mountain reservoir. Comment
  CAS-BOT-BC439793  Claytonia perfoliata Betty H. Johnson 1958-6-15 635 Napa 1/2 mi. above Mt. Mill House, 6.4 mi. S-W. of Middletown Comment
  UCD15053  Claytonia perfoliata Joe Smilanick 1977-4-16 7 Napa California, Napa Co.; along Highway 128, 6.4 miles southwest of Monticello Dam; 182 Comment
  CAS-BOT-BC439943  Claytonia perfoliata subsp. mexicana Gilbert Muth 1967-4-28 650 Napa Spring Mountain Road, St. Helene [Helena] Comment
  UCD49148  Claytonia perfoliata subsp. perfoliata C. Mathews; T. Petrie, K. Glover, and C. Little 2001-4-14 2 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam; near jct of West Rd. and Decker Bay Trail, S side of West Rd. 152 Comment
  SFV1260  Clematis lasiantha L. B. Hendrix 1962-5-5 43 Napa South end of Lake Berryessa. Comment
  UCD95591  Clematis ligusticifolia H. Popenoe 1949-6-4 32 Napa 11.5 miles from Winters on road to Monticello. Comment
  UCD73054  Clinopodium douglasii Ellen Dean; S. Rae 2008-5-21 4973 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 213 Comment
  POM298618  Collinsia greenei Lincoln Constance, J. F. Davidson, R. H. Shan, W. H. Wagner 1946-5-18 3046 Napa Near Mount St. Helena Inn, southeast slope of Mount St. Helena. Comment
  POM114307  Collinsia heterophylla Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA187487  Collinsia heterophylla John H. Thomas 1955-5-21 5169 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena. 244 Comment
  UC1196838  Collinsia heterophylla J. P. Tracy Aug 6 1898-Jan 14 1899 271 Napa 3-4 mi e of Angwins (Howell Mountain, Head of Moore's Creek); Howell Mountain, Head of Moore's Creek Comment
  UCD123575  Collinsia heterophylla Kamala Crompton 1996-5-12 12 Napa next to Berryessa-Knoxville Road, 1 mile of Quarry Canyon. 120 Comment
  UCD160792  Collinsia heterophylla Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8672 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 470 Comment
  UCD18158  Collinsia heterophylla Eva Bayon; with Plant Biology 102 class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. Ca. 0.20 - 0.50 miles as the crow flies N of site of old town of Knoxville, along road to Clover Valley. 463 Comment
  UCD70469  Collinsia heterophylla P. J. Plummer 1995-6-5 s.n. Napa Napa County West of city of Winters, along hwy 128. Growing under shrubs on open hillside. Flowers purple and white. 73 Comment
  UCD123578  Collinsia heterophylla M. Ensign 1943-5-28 306 Napa 10 miles north of Monticello on road to Lower Lake. Comment
  UCD70459  Collinsia heterophylla M. Thibodeau 1995-4-15 9 Napa W of City of Winters, along hwy 128. Quail Ridge Reserve; 15 m N of main cabin. Flowers purple. 274 Comment
  CAS-BOT-BC94519  Collinsia sparsiflora R. C. Wenk; E. S. Wenk 2006-4-30 437 Napa Robert Louis Stevenson State Park. Trail going E from Highway 29 parking lot for trail to Mt. St. Helena, 1/2 mile from Comment
  CDA11323  Collinsia sparsiflora G. F. Hrusa, R. Cole, D. Anderson 1995-3-26 12029 Napa At entrance gate UC Quail Ridge Reserve. Comment
  UCD123659  Collinsia sparsiflora R. L. Smith 1948-5-8 s.n. Napa Pope Valley. Comment
  CAS-BOT-BC474520  Collinsia sparsiflora var. arvensis G. F. Hrusa 1995-4-2 12046 Napa North Coast Biodiversity Arena: Franz Valley School Rd, approx. 1 mi E of Napa/Sonoma Co. line 200 Comment
  JEPS112522  Collinsia sparsiflora var. arvensis Jake Ruygt 1996-3-23 3530 Napa .3 mile from Pope Canyon Road on Hardin Road, near airstrip. 184 Comment
  UC917131  Collinsia sparsiflora var. arvensis D. C. Finfrock 1950-4-2 14 Napa 2 mi from St. Helena on the Pope Valley Road St. Helena; Pope Valley Road Comment
  JEPS6350  Collinsia sparsiflora var. arvensis H. M. Wheeler 1944-3-27 Napa ca 1.8 mi n of s end of Conn Valley (Conn Ranch) Comment
  POM15100  Collinsia sparsiflora var. arvensis C. F. Baker 1903-4-19 1984 Napa Calistoga. Comment
  UC672472  Collinsia sparsiflora var. arvensis A. E. Borell 1928-4-13 118 Napa 10 mi sw Calistoga Comment
  JEPS25072  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1933-4-30 12099 Napa 3-4 mi e Angwin's (head of Moore's Creek, on hills); North Coast Ranges, Howell Mtn, Moore's Creek 396 Comment
  UCD123677  Collinsia sparsiflora var. sparsiflora G. F. Hrusa; R. Cole, D. Anderson 1995-3-26 12029 Napa University of California: Quail Ridge Reserve. 290 Comment
  UC903160  Collinsia sparsiflora var. sparsiflora Ethel Crum 1937-4-19 1782 Napa 15 mi ne of Napa (Napa Range, Steel Canyon); Napa Range, Steel Canyon Comment
  UCD123678  Collinsia sparsiflora var. sparsiflora Carl A. Huether Jr. 1964-4-19 44 Napa south side of Soda Creek, 2 miles east of junction with Lower Chilies Valley Road and ca. 2 1/2 miles southwest of Lake Berryessa. Comment
  JEPS112525  Collinsia tinctoria Jake Ruygt 1987-6-6 2032 Napa Devil's Canyon near falls 548 Comment
  JEPS128915  Collinsia tinctoria Jake Ruygt 1998-5-20 3979 Napa Chiles Canyon about 1/2 mile N of white bridge. Chiles Valley 7.5' Quad. Comment
  JEPS7296  Collinsia tinctoria Alice King Jul 1919 Napa Van Ness Ranch , Mt. St. Helena (Mt. St. Helena) Comment
  UC1561247  Collomia diversifolia Barbara Ertter with Annetta Carter 1989-5-28 8514 Napa on Berryessa Rd 2 mi se Lake County line (near Knoxville, serpentine hills s of road) 609 Comment
  UC1736677  Collomia diversifolia Dean W. Taylor 1990-5-25 10813 Napa Butts Canyon Road, near junction with Snell Road. 204 Comment
  RSA10667  Collomia heterophylla C. B. Wolf 1928-5-3 1822 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UC908736  Collomia heterophylla Herbert L. Mason 1926-3-21 2782 Napa near summit of road Mt. St. Helena Comment
  JEPS106937  Conyza canadensis Jake Ruygt 1992-8-31 3134 Napa west side of Leoma Lakes, Wild Horse Valley Ranch 405 Comment
  JEPS7005  Cordylanthus mollis subsp. mollis Peter H. Raven 1952-8-26 5138 Napa salt marshes Bentley Wharf 15 Comment
  JEPS62599  Cordylanthus pilosus subsp. pilosus T. I. Chuang with Fei-Mei Chuang 1970-7-25 6831 C Napa just s Napa and Lake County line (on US Hwy 29) Comment
  JEPS6768  Cordylanthus pilosus subsp. pilosus Peter H. Raven 1951-8-19 3834 Napa near Lokoya 487 Comment
  SD131925  Cordylanthus pilosus subsp. pilosus Rimo Bacigalupi, C. L. Custer, G. T. Robbins 1954-8-9 4750 Napa grade over shoulder of Mt. St. Helena, road from Calistoga to Middletown, near Hanley's Resort Comment
  UCR78362  Cordylanthus pringlei T. I. Chuang, F. M. Chuang 1970-8-25 6842 Napa North Coast Range, Just south of Lake County line, on U.S. Hwy 29 463 Comment
  OBI9575  Cordylanthus pringlei Robert F. Hoover 1966-8-23 9922 Napa E side of Mt. St. Helena, about 1/2 mi S of lake co. line Comment
  RSA537655  Cordylanthus pringlei L. R. Heckard, T. I. Chuang 1971-8-16 2777 Napa Along U.S. Highway 29, south of Middletown just across the Lake County line. 457 Comment
  CDA30783  Cordylanthus tenuis subsp. brunneus V. Popescu, D. Woods 2010-6-28 s.n. Napa North Coast Ranges; Knoxville-Devilhead Rd. 448 Comment
  HSC90863  Cordylanthus tenuis subsp. brunneus T. I. Chuang 1972-7-8 7061 Napa Just S of the Napa and Lake Co. line, on Hwy. 29 Comment
  UC146880  Cordylanthus tenuis subsp. brunneus Katharine Brandegee 1910-1 Napa near Angwin Comment
  UCD170468  Cordylanthus tenuis subsp. brunneus Daniel Potter; Ninh Khuu 2016-6-18 897 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 454 Comment
  JEPS50112  Cornus glabrata W. L. Jepson 1899-7-13 14151 Napa Pope Creek Comment
  RSA22332  Cornus glabrata Joseph A. Ewan 1934-4-30 8849 Napa Steel Canyon 8 mi. S of Monticello. Comment
  UCD161330  Cornus glabrata Jake Ruygt 1980-6-21 931 Napa Van Ness Creek. (Coordinates estimated by label maker at UC Davis). Comment
  UCD164795  Cornus glabrata Jeff Page 2016-6-13 s.n. Napa Trubody Ranch, 5444 Trubody Lane. 21 Comment
  UCD47955  Cornus glabrata Ryan Knox; E. McDermott and G. Walden 2002-4-13 1 Napa Napa Co., McLaughlin Natural Reserve, from old town of Knoxville travel 0.4 miles south, turn west along Berryessa-Knoxville Rd. and continue 0.7 miles. Collected on south side of road, from Knoxville Creek's bank. 131 Comment
  JEPS48543  Cornus nuttallii Elsa Kraeger 1926-3-28 Napa roadside below St. Helena Inn Mt. St. Helena Comment
  RSA52657  Cornus nuttallii I. L. Wiggins 1949-4-30 12090 Napa Along draw on NE flank of Mount St. Helena. 915 Comment
  UC21525  Cornus nuttallii Willis L. Jepson 1893-1 Napa Toll-house Mt. St. Helena; Napa R. Basin, Mt. St. Helena Comment
  UCD161226  Cornus nuttallii Jake Ruygt 2003-4-11 4495 Napa Howell Mtn. Rd. near Ink Grade Rd. (Coordinates estimated by label maker at UC Davis). 560 Comment
  SEINET2065359 Image available Corylus cornuta Royal D. Suttkus 1967-6-26 67 -3035 Napa Clearly Reserves, 7.2 miles NE of Pope Valley. Comment
  CAS-BOT-BC180345  Corylus cornuta subsp. californica D. E. Breedlove 1980-6-27 44785 Napa 2.2 miles W of Calistoga at Highway 128 on road to Santa Rosa Comment
  UCD110076  Corylus cornuta subsp. californica Baki Kasapligil 1964-4-11 3458 Napa Angwin 7 miles east of St. Helena, Howell Mt. Ca. 1700 along creek. Comment
  UCSB27481  Corylus cornuta subsp. californica Havlik, Neil 1969-6-29 Napa Along State Highway 29, on the northeast slope of Mount St. Helena, about 2 miles south fo the Napa-Lake County Line Comment
  UCD149722  Crassula connata Stephen P. Rae; Ayzik Solomeshch 2007-3-14 Napa Signorello Winery, 4500 Silverado Trail, ca. 1/4 km east of Silverado Trail. 65 Comment
  JEPS106398  Cressa truxillensis Jake Ruygt 1981-7-20 1070 Napa Fagan's Marsh 2 Comment
  UCD161216  Crocanthemum scoparium Jake Ruygt 1989-7-1 2393 Napa Mt. Vaca. 755 Comment
  UCD36950  Crocanthemum scoparium Beecher Crampton 1956-5-25 3480 Napa Howell Mountains, above southwest corner of Wooden Valley. Comment
  CHSC102273  Crypsis schoenoides Lowell Ahart 2009-10-12 16462 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  SEINET1910014  Crypsis schoenoides Barbara Ertter, Elizabeth Neese 1988-1 7963 Napa Lake Hennessey ca 15 airmiles NNW of Napa, on Conn Creek in North Coast Ranges; E of boat-launching ramp on SE edge 91 Comment
  UCD37518  Crypsis schoenoides Beecher Crampton 1954-10-26 2300 Napa 4 miles east of Rutherford, Conn Reservoir. Comment
  UCD59944  Crypsis schoenoides Beecher Crampton 1963-9-19 6898 Napa North end of Capell Valley, above Capell Creek, State Hwy. 128. Comment
  UCD59945  Crypsis schoenoides Beecher Crampton 1962-9-11 6673 Napa Wragg Canyon Resort, Lake Berryessa. Comment
  CHSC99886  Cryptantha clevelandii var. dissita Beecher Crampton 1954-5-20 1929 Napa 8 miles southwest of Monticello, along highway 128. Comment
  UCD32575  Cryptantha dissita Beecher Crampton 1954-5-20 1929 Napa 8 miles southwest of Monticello, along highway 128. Comment
  UCD148934  Cryptantha flaccida Ellen Dean; Diana Hickson 2014-4-29 8146 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 511 Comment
  UC857112  Cryptantha flaccida Joseph Andorfer Ewan 1934-4-30 8842 Napa 5 mi s Monticello (on Steel Canyon road) Comment
  RSA733921  Cryptantha hispidula Beecher Crampton 1954-5-20 1929 Napa Napa County, 8 miles southwest of Monticello, along highway 128. Growing in low road banks, in serpentine soil. Comment
  SBBG115602  Cryptantha hispidula B. Crampton 1958-4-29 4754 Napa above Capell Crk, N end of Capell Valley Comment
  UC1278112  Cryptantha hispidula Beecher Crampton 1954-5-20 1929 Napa ca 8 mi sw Monticello (along State Hwy 128) Comment
  UC55902  Cryptantha hispidula J. P. Tracy 1902-5-21 1575 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 457 Comment
  UC857146  Cryptantha hispidula Milo S. Baker 1938-4-29 8939 Napa e of Pope Valley (along road from Monticello) Comment
  UCD47943  Cryptantha hispidula J. Waggoner; E. Anderson, L. Lina, A. Miles, and R. Wenk 2000-4-22 9 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  UCD164838  Cryptantha microstachys Jake Ruygt 2012-5-12 5843 Napa Crystal Flats, west of Putah Creek. 182 Comment
  UCD74372  Cryptantha microstachys Jake Ruygt 1989-6-3 2358 Napa About 1/2 mile south of Monticello Dam on Vaca Mtns. 396 Comment
  UCD74371  Cryptantha muricata Jake Ruygt 2004-5-29 4607 Napa Van Ness Canyon near old hunting camp. 579 Comment
  HSC43990  Cryptantha rostellata Robert M. Specht 1977-4-19 684 Napa Above drainage running NE from Adams Creek (site 163) 524 Comment
  UC55903  Cryptantha torreyana J. P. Tracy May 15 1903-May 18 1903 1865 Napa near Calistoga; San Francisco Bay Region, Napa Valley 121 Comment
  CAS-BOT-BC80723  Cupressus macnabiana Elmer I. Applegate 1931-3-25 6621 Napa Near Mountain House, east base of Mt. St. Helena, northern Napa County Comment
  JEPS21187  Cupressus macnabiana H. L. Mason 1925-1-22 1208 Napa Pope Canyon Comment
  UC144147  Cupressus macnabiana W. J. V. Osterhout 1909-1-1 Napa St. Helena Crater Comment
  RSA96667  Cupressus macnabiana Percy C. Everett, E. K. Balls 1954-10-19 20371 Napa 3.9 miles NW of Knoxville on road to Lower Lake. 610 Comment
  CDA11162  Cupressus sargentii G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11574 Napa North Coast Biodiversity Arena; 2 m. NW of Aetna Springs along Schwartz Ck. Rd. Comment
  RSA17621  Cupressus sargentii C. B. Wolf, E. R. Johnson 1934-10-17 6196 Napa North side of Mt. St. Helena, 300 ft. south of Lake County line on Middletown - Calistoga road 457 Comment
  NY16827  Cupressus sargentii C. B. Wolf 1934-10-17 6196 Napa This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM282208  Cupressus sargentii Lyman Benson 1935-2-25 6244 Napa N Base Mt St Helena. Mayacamas mtn range, Putah Creek watershed. Napa-Lake Cos. 549 Comment
Read comments
Jan 25 2016
  CAS-BOT-BC224537  Cuscuta californica John Thomas Howell 1933-8-27 11648 Napa East of Chiles Valley on road to Winters, Napa Range Comment
  JEPS47107  Cuscuta californica W. L. Jepson 1930-10-19 15691 Napa Butts Canyon Comment
  UCD160702  Cuscuta howelliana Ellen Dean; Jake Ruygt 2015-5-23 8761 Napa McLaughlin UC Reserve on the N side of Knoxville-Berryessa Road, west of the old town of Knoxville site. 416 Comment
  JEPS47132  Cuscuta subinclusa W. L. Jepson 1930-10-19 15702 Napa Butts Canyon, ne Napa County Butts Canyon Comment
  JEPS47133  Cuscuta subinclusa W. L. Jepson 1930-10-19 15696 Napa Butts Canyon, ne Napa County Butts Canyon Comment
  SEINET891444  Cuscuta subinclusa Harley P. Chandler 1906-1 7124 Napa Alta Loma Ranch. Howell Mountain. 487 Comment
  HSC3636  Cynoglossum grande Greg Bos 1963-3-3 23 Napa W shore of Lake Berryesa, S slope of Hill. 183 Comment
  UCD95902  Cynoglossum grande Ellen Dean; with Clare Loughran 2011-5-20 7045 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 594 Comment
  SEINET5731319 Image available Cynoglossum grande R. F. Denno 1967-1 49 Napa Lower Chiles Valley Road, 1 mile NW of State Hwy 128. 229 Comment
  CDA29763  Cyperus erythrorhizos M. K. Beyers, F. Favela, J. McDonnell 2009-8-29 218 Napa Lake Berryessa: In a moist, but drying arm of Lake Berryessa, off of Berryessa Knoxville Road, extending towards Capell Valley Road (Highway 128). 0 Comment
  SEINET1909982  Cyperus erythrorhizos Barbara Ertter, Elizabeth Neese 1988-1 7964 Napa Napa Co.: Lake Hennessaey ca 15 airmiles NNW of Napa, on Conn Creek in North Coast Ranges. East of of boat-launching ramp on SE edge. 91 Comment
  JEPS103990  Cystopteris fragilis Jake Ruygt 1993-3-6 3167 Napa Skyline Park, Skyline trail. 85 Comment
  CAS-BOT-BC70576  Cystopteris fragilis Peter H. Raven 1957-5-5 10771 Napa western edge of Calistoga 182 Comment
  UCD127387  Daucus carota K. Esau; D. Hartmann 1941-7-17 s.n. Napa Between Middletown and Calistoga. Comment
  UCD127396  Daucus carota R. Tofsrud 1948-6-15 s.n. Napa Exact location unknown. Comment
  JEPS106659  Deinandra corymbosa Jake Ruygt 1980-6-1 908 Napa Milton Rd. across from Yacht club 0 Comment
  JEPS81603  Delphinium R. Raiche 1982-3-7 20188 Napa on Chiles and Pope Valley Rd. 1.3 mi n Sage Canyon Road Comment
  SEINET5337981  Delphinium decorum J. Tracy 1902-5-15 1475 Napa On hills at head of Moore's Creek, 3-4 mi. E of Angwin's. 366 Comment
  CAS-BOT-BC10198  Delphinium hesperium Rimo Bacigalupi 1928-6-20 1856 Napa Howell Mtn., 10 miles west of St. Helena Comment
  UCD18168  Delphinium hesperium Eva Bayon; with Plant Biology 102 Class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley. Ca. 0.20 miles as the crow flies N of site of old town of Knoxville. 426 Comment
  CAS-BOT-BC10200  Delphinium hesperium H. Lewis; G. Mehlquist 1941-5-9 s.n. Napa Monticello to Napa road, 1.5 miles S of road to St. Helena Comment
  UC467768  Delphinium hesperium subsp. hesperium H. P. Chandler 1907-5-26 7590 Napa White Sulphur Spring St. Helena Comment
  UC1196312  Delphinium hesperium subsp. pallescens Joseph P. Tracy 1899-6-19 352 Napa on hills at head of creek 3-4 mi e Angwin's; Northern Coast Ranges, Howell Mountain, Moore's Creek 365 Comment
  UCD48154  Delphinium hesperium subsp. pallescens R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 19 Napa Northern Napa Countym McLaughlin Reserve, grassland 500 feet south of intersection between Old Knoxville Road and Berryessa-Knoxville Road. 411 Comment
  UCD48155  Delphinium hesperium subsp. pallescens R. Wenk; E. Anderson, L. Lina, A. Miles, and J. Waggoner 2000-4-22 28 Napa Napa County, California. McLaughlin reserve, North of Knoxville-Berryessa Road, South of old town of Knoxville. Collected on west side of dirt road. 390 Comment
  RSA10691  Delphinium nudicaule Carl B. Wolf 1928-5-3 1796 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  SEINET7075475  Delphinium nudicaule A. G. Vestal 1955-4-6 s.n. Napa Steep rocky bank south of Pope Valley in Canyon on Howell Mountain Road. 38? deg. 36' 21" North Latitude, -122? deg. 26' 02" West Longitude. (NAD 27). [Coordinate Datum: WGS84/NAD83]. Comment
  UCD96061  Delphinium nudicaule G. L. Webster 1967-3-23 7487 Napa Along Chiles Creek c. 1 mi. SW Chiles Grist Mill, Pope Valley Rd. 137 Comment
  UC467782  Delphinium patens H. P. Chandler 1907-5-14 7576 Napa White Sulphur Spr. St. Helena Comment
  CAS-BOT-BC116493  Delphinium patens subsp. patens C. B. Wolf 1928-5-3 1834 Napa base of Mt. St. Helena Comment
  UC668270  Delphinium uliginosum Joseph P. Tracy 1938-6-5 15831 Napa 5 mi e Angwin's (on hills at head of creek); Howell Mountain, Moore's Creek 365 Comment
  UCD13263  Delphinium uliginosum Mary M. Hektner 1973-6-4 348 Napa Napa CO. Chiles and Pope Valley Road, ca 3 miles north of junction with Lower Chiles Valley Road. Comment
  UCD141587  Delphinium uliginosum Ellen Dean 2013-4-27 7708 Napa Las Posadas State Experimental Forest. Recreation Flat. 396 Comment
  CAS-BOT-BC7912  Delphinium variegatum Peter H. Raven 1953-5-2 5381 Napa Hills due E of Yountville 243 Comment
  UC906477  Delphinium variegatum J. Ewan 1934-4-30 8855 Napa grassy slope Pope Valley (e end of valley) Comment
  CAS-BOT-BC7907  Delphinium variegatum Lester Rowntree 1938-5-16 s.n. Napa Atlas Peak Road, near Napa Comment
  CAS-BOT-BC7908  Delphinium variegatum David D. Keck 1931-4-2 1054 Napa 4 miles S of Monticello, eastern Napa County Comment
  UCD96742  Delphinium variegatum R. L. Smith 1948-5-8 s.n. Napa Near Edmunds Springs, east branch of Monticello Valley. Comment
  JEPS110994  Delphinium variegatum subsp. variegatum Jake Ruygt 1979-4-1 471 Napa Cup and Saucer 121 Comment
  UC1126377  Dendromecon rigida A. E. Wieslander 1931-5-11 183 Napa n slope of mountain n Calistoga; Calistoga Quadrangle, Mt. St. Helena 731 Comment
  CAS-BOT-BC654  Dendromecon rigida subsp. rigida Mary Katherine (Mrs.) Brandegee 1910-5-1 94 Napa Mt. St. Helena, on slopes back of the Toll House. Comment
  UCD61153  Deschampsia cespitosa Beecher Crampton 1957-5-8 4000 Napa Above Capell Creek, north end of Capell Valley. Comment
  SEINET10515817  Deschampsia cespitosa Peter H. Raven 1965-5-16 Raven 20210 Napa Cedar Valley, vicinity of Knoxville. Along stream in grove of Cupressus sargentii. 610 Comment
  JEPS122974  Deschampsia cespitosa subsp. cespitosa Jake Ruygt 2002-5-18 4423 Napa Missimer/Snell Valley Wildflower Preserve. Quad: Aetna Springs. Comment
  UCD170464  Deschampsia cespitosa subsp. cespitosa Daniel Potter; Ninh Khuu 2016-6-18 893 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road. 433 Comment
  CAS-BOT-BC198142  Deschampsia danthonioides Peter H. Raven 1951-6-10 2928 Napa Crater Region S of Palisades 762 Comment
  UC53586  Deschampsia danthonioides Willis L. Jepson 1893-1 Napa Napa Valley, Napa R. Basin Comment
  UC766810  Deschampsia danthonioides R. F. Hoover 1941-4-26 4922 Napa Pope Valley Comment
  CAS-BOT-BC253632  Dichanthelium acuminatum subsp. acuminatum Peter H. Raven 1951-6-10 2939 Napa Crater Region E of Palisades 762 Comment
  UCD148795  Dichelostemma capitatum Ellen Dean; Diana Hickson 2014-4-29 8103 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  UCD48273  Dichelostemma capitatum K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, and K. Watts 2000-4-28 6 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of rd., ca. 20 ft south of path. 545 Comment
  RSA638889  Dichelostemma capitatum Mark Harder 1977-4-16 4 a Napa 6.4 miles SW of Monticelo Dam along Hwy 128. 183 Comment
  CHSC27760  Dichelostemma capitatum subsp. capitatum Ethel Pearson 1978-3-24 1 Napa Ca. 2.8 mi w of junction of State Hwy. 128 with Steele Canyon Rd. on Steele Canyon Rd. 152 Comment
  HSC45346  Dichelostemma capitatum subsp. capitatum R. York 1978-4-8 111 Napa 2 mi. W of Angwin on Hwy. 128 305 Comment
  UC765931  Dichelostemma congestum R. F. Hoover 1941-4-26 4924 Napa Pope Valley Comment
  UCD160771  Dichelostemma congestum Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8650 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel. 594 Comment
  UCD96200  Dichelostemma multiflorum Ellen Dean; with Clare Loughran 2011-5-20 7078 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property, west of main road and near property boundary. 614 Comment
  CAS-BOT-BC150362  Diplacus aurantiacus John H. Thomas 1955-5-21 5099 Napa Sarco Creek drainage, near State Highway No. 37, about 6 miles from Napa 274 Comment
  SEINET13769181 Image available Diplacus aurantiacus J. W. Riekels 1961-1 40 Napa State highway 128, 2 miles southwest of Monticello Dam Comment
  SEINET183712  Diplacus kelloggii L. Constance 1938-1 2044 Napa Steel Cyn near Capell Valley, 8 mi S of Monticello, Napa Range, N Coast Ranges 305 Comment
  CDA6690  Dipsacus fullonum Margaret Bellue 1933-5-2 Napa 0 Comment
  JEPS8810  Dipsacus sativus W. L. Jepson 1936-5-30 17561 Napa Napa Valley, Rutherford Rutherford; Napa Valley, Rutherford Comment
  UCD64179  Distichlis spicata Beecher Crampton 1956-5-21 3445 Napa Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  UCD92896  Distichlis spicata Beecher Crampton 1962-5-8 6412 Napa 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  CHSC102531  Dittrichia graveolens Lowell Ahart 2009-10-27 16503 Napa Intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 miles (air) west of Winters. 152 Comment
  UCD117942  Dodecatheon hendersonii Rachel Westaby; Plant Biology 102 Collectors 2012-4-29 6 Napa Las Posadas State Experimental Forest. Just northeast of the fire station about 0.1 mile down undeveloped road. Northwest side of road. 518 Comment
  UCD151055  Dodecatheon hendersonii D. C. Finfrock 1950-4-2 16 Napa 2 miles from St. Helena on Pope Valley Road. Comment
  UCD14887  Dodecatheon hendersonii Chris Chan 1991-3-28 2 Napa California, Napa Co.; at Lake Berryessa, just west of Monticello Dam, along Highway 128; 203 Comment
  UCD15063  Dodecatheon hendersonii Julie Knorr 1977-4-16 6 Napa California, Napa Co.; along Highway 128, 6.4 miles west of Monticello Dam; Comment
  JEPS14419  Downingia concolor var. concolor W. L. Jepson 1893-4-27 21195 Napa sw of Napa City Comment
  RSA195338  Downingia concolor var. concolor Gilbert Muth 1967-5-19 694 Napa Milliken Dam. 335 Comment
  UC1189260  Downingia concolor var. concolor Joseph T. Gregory 1933-6-2 224 Napa Howell Mt. top Howell Mt. Comment
  JEPS106569  Downingia pusilla Jake Ruygt 1990-4-9 2469 Napa Milliken Reservoir, Napa City Watershed 356 Comment
  JEPS106570  Downingia pusilla Jake Ruygt 1986-4-14 1701 Napa 4.5 miles north of Westgate Dr. on Atlas Peak Road 448 Comment
  UCR23631  Draba verna var. aestivalis John C. Roos 1939-2-21 299 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  CAS-BOT-BC157776  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  SFV5088  Dryopteris arguta B. C. Templeton 1957-6-26 s. n. Napa Calistoga. Near Hill and Connors Ranches. Comment
  JEPS49899  Dudleya cymosa W. L. Jepson 1896-6-2 13420 Napa near St. Helena; Napa Valley Comment
  JEPS50046  Dudleya cymosa W. L. Jepson 1938-5-22 18821 Napa Limekiln Creek Canyon Pope Valley Comment
  UCD47954  Dudleya cymosa A. Laffin; S. Holck, A. Randall 2002-4-13 5 Napa Napa County, McLaughlin UC Reserve, North of Knoxville-Berryessa Road and ca. 0.5 airline mile WSW of old town of Knoxville. 437 Comment
  UCD161524  Dudleya cymosa Jake Ruygt 1990-6-9 2582 Napa Huichica Creek south of Lovall Valley. 170 Comment
  CAS-BOT-BC428156  Dudleya cymosa subsp. cymosa Alice Eastwood 1930-4-1 s.n. Napa In canon on way to Pope Valley Comment
  UCD98664  Dysphania ambrosioides H. S. Reed 1948-11-6 2020 Napa Berryessa Valley. Comment
  JEPS122984  Echinochloa crus-galli Jake Ruygt 1986-6-21 1839 Napa Napa Sanitation treatment ponds. Quad: Cuttings Wharf. Comment
  UC585508  Echinochloa crus-galli Virginia E. Long 1931-8-22 104 a Napa (between Calistoga and Mt. St. Helena) Sullivan's Halfway Station 111 Comment
  SEINET3928609  Echinochloa crus-galli Virginia E. Long 1931-8-22 104 a Napa Sullivan's Halfway Station (between Calistoga and Mt. St. Helena).; 0 111 Comment
  SEINET10564032  Echinochloa crus-galli var. zelayensis Virginia E. Long 1931-8-22 Long 104 a Napa Sullivan's Halfway Station (between Calistoga and Mt. St. Helens). In boggy irrigation ditch near pumping plant. 111 Comment
  JEPS121359  Eleocharis acicularis var. acicularis Jake Ruygt 1983-4-4 1407 Napa .3 mile south of Old Bale Mill on Hwy 29 Comment
  JEPS121360  Eleocharis acicularis var. acicularis Jake Ruygt 1992-5-18 2976 Napa Yountville Ecological Reserve, Yountville. Comment
  UCD161710  Eleocharis engelmannii Jake Ruygt 2010-8-7 5699 Napa Friesen Lakes, Dear Lake. 594 Comment
  CAS-BOT-BC112167  Eleocharis radicans Peter H. Raven 1952-8-25 5127 Napa Nr. Lokoya. 609 Comment
  RSA125599  Eleocharis rostellata Peter H. Raven 1957-5-5 17053 Napa Calistoga 91 Comment
  UCR25608  Elymus glaucus John C. Roos 1939-5-13 256 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  CAS-BOT-BC203594  Elymus glaucus subsp. glaucus Peter H. Raven 1964-5-9 19047 Napa 2 miles west of Aetna Springs Comment
  CAS-BOT-BC203597  Elymus glaucus subsp. glaucus Betty H. Johnson 1958-6-20 654 Napa Near Mt. Mill House, 6.4 mi. S-W. of Middletown Comment
  JEPS75635  Elymus glaucus subsp. jepsonii W. L. Jepson 1936-5-28 17542 Napa Adam-and-Eve Ridge Howell Mt. Comment
  UC187091  Elymus multisetus Joseph P. Tracy 1904-5-23 2098 Napa near Calistoga; Northern Coast Ranges, Napa Valley 243 Comment
  UCD160740  Elymus multisetus Ellen Dean 2015-5-23 8792 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 240 Comment
  UCD62718  Elymus trachycaulus Beecher Crampton 1954-10-26 2301 Napa Conn Reservoir, 4 miles east of Rutherford. Comment
  JEPS110832  Emmenanthe penduliflora Jake Ruygt 1979-5-16 601 Napa 5.8 miles east of Monticello Rd. on HWY 128 304 Comment
  UCD48052  Emmenanthe penduliflora B. Takahashi; S. Burgess, A. Hufton, J. Pierner, A. Ryan 2000-4-29 5 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow the flies) N of the old town of Knoxville. 609 Comment
  UC1177088  Epilobium brachycarpum Peter H. Raven 1952-9-14 5167 Napa Yountville 106 Comment
  JEPS110701  Epilobium campestre Jake Ruygt 1986-6-21 1830 Napa west end of Soscol Rd. below Southern Crossing HWY 29 4 Comment
  JEPS2500 Image available Epilobium densiflorum Willis L. Jepson 1893-6-26 14390 Napa stream beds Napa River Basin, Howell Mt.; Howell Mt., Napa River Basin Comment
  UC19944  Epilobium densiflorum F. T. Bioletti 1892-8-15 Napa Napa Junction Comment
  RSA37535  Epilobium foliosum Milo S. Baker 1942-5-27 10204 Napa Summit of Spring Mt. Road, along road turning north, near boundary of Sonoma and Napa Counties 619 Comment
  UCD69077  Epilobium minutum P. Rodriguez-Rojo 1997-5-31 s.n. Napa Lake Berryessa. Capell Creek. 155 Comment
  UCSB4279  Epilobium torreyi 1959-6-22 Napa Near southeast shore of Lake Hennessy, Napa Range Comment
  UCD138935  Epipactis gigantea Ted C. MacRae 1994-4-30 940430 -0 Napa 1 mile north of Snell Valley Road, on Butts Canyon Road. Comment
  JEPS129126  Equisetum arvense Jake Ruygt 2008-7-19 5359 Napa Eticuera Creek, south of Long Canyon. Knoxville 7.5' Quad. Comment
  JEPS116560  Equisetum laevigatum Jake Ruygt 1996-4-22 3621 Napa Sheehy Creek at Executive Court. Cuttings Wharf 7.5' Quad. Comment
  JEPS103964  Equisetum telmateia Jake Ruygt 1979-4-8 493 Napa Mt. St. Helena, at base of fire trail 658 Comment
  UCD135577  Equisetum telmateia subsp. braunii Beecher Crampton 1961-6-12 5906 Napa Ca. 9 miles northeast Napa, junction State Hwy. 37 and road to Fairfield. Comment
  RSA140853  Eremocarpus setiger John H. Thomas 1960-8-29 8836 Napa About 1 mile north of Calistoga along highway number 53. Comment
  CAS-BOT-BC131508  Ericameria arborescens Peter H. Raven 1951-8-20 3857 Napa Near Lokoya 548 Comment
  UC87290  Ericameria arborescens Alice Eastwood 1900-9-9 Napa Mt. St. Helena Comment
  JEPS106944  Erigeron biolettii Jake Ruygt 1981-7-8 1059 Napa near upper Bateman Creek 670 Comment
Read comments
Jan 14 2009
  CAS-BOT-BC295965  Erigeron philadelphicus Peter H. Raven 1952-5-31 4114 Napa Conn Creek e. of Yountville 45 Comment
  CDA10860  Eriodictyon californicum G. F. Hrusa, M. Rejmanek 1993-5-15 10955 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD49079  Eriodictyon californicum K. Mogel; B. Pekin and M. Higley 2002-5-4 17 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the jct of West and East roads; ca. 400 ft. along the upper road that leads to the power lines; on side of road. 335 Comment
  UCD49083  Eriodictyon californicum S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 22 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, E side of Decker Canyon about 200 m up Cut-Off Rd. from South Decker Canyon Rd. 213 Comment
  UC623311  Eriogonum compositum var. compositum H. L. Mason 1939-5-18 12101 Napa near St. Helena (near summit of Spring Mountain Grade); Spring Mountain Grade Comment
  CAS-BOT-BC242606  Eriogonum dasyanthemum Susan G. Stokes 1933-8-27 91 Napa Upper part of Sage Valley, near Chiles School, Napa Mountains Comment
  CAS-BOT-BC242608  Eriogonum dasyanthemum Peter H. Raven 1951-6-26 3080 Napa Cappell [Capell] Valley 365 Comment
  RSA207  Eriogonum dasyanthemum J. T. Howell 1927-8-23 681 Napa Chiles Valley, Napa Range. 213 Comment
  CAS-BOT-BC242609  Eriogonum dasyanthemum Susan G. Stokes 1933-8-27 92 Napa Upper part of Sage Valley, Napa Mts. Comment
  RSA128800  Eriogonum dasyanthemum Peter H. Raven 1951-10-28 3954 Napa Road 4 miles south of Knoxville 366 Comment
  CAS-BOT-BC266057  Eriogonum luteolum Peter H. Raven 1951-10-28 3929 Napa Conn Valley 152 Comment
  CAS-BOT-BC266065  Eriogonum luteolum Susan G. Stokes 1933-8-27 82 Napa Sage Canyon, Napa Mountains Comment
  POM105142  Eriogonum luteolum Marcus E. Jones 1881-7-6 s.n. Napa St. Helena Comment
  CAS-BOT-BC266054  Eriogonum luteolum Susan G. Stokes 1933-8-27 92 Napa Upper part of Sage Valley, Napa Mountains Comment
  SEINET11938082  Eriogonum luteolum F. W. Hoffman 1947-1 1368 Napa Butts Cayon near Black Oak Villa Comment
  SEINET3405141 Image available Eriogonum luteolum var. luteolum Susan G. Stokes 1933-8-27 82 Napa Sage Canyon, Napa mountains. Comment
  UC535076  Eriogonum luteolum var. luteolum Susan G. Stokes 1933-8-27 81 Napa Sage Canyon Napa Mountains, Sage Canyon Comment
  UCD160655  Eriogonum luteolum var. luteolum Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8741 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 251 Comment
  JEPS56901  Eriogonum luteolum var. luteolum W. L. Jepson 1938-9-22 19016 Napa near Sanitarium (lower w slopes, Howell Mountain); Howell Mountain Comment
  UCD164786  Eriogonum luteolum var. luteolum Jake Ruygt 2010-6-21 5649 Napa east of White point. 652 Comment
  CAS-BOT-BC474562  Eriogonum nervulosum G. Ledyard Stebbins 1985-6-17 C 534 Napa NW of Dunnigan Hill, W of Hunting Creek, SW of Knoxville (exact location unknown; coordinates estaimated by label maker) 432 Comment
  UCD73440  Eriogonum nudum Ayzik Solomeshch 2007-8-7 s. n. Napa Oakville Ranch, ca. 6 miles northwest from Yountville. On Hwy. 29 take 'Oakville grade' road, ca. 3 miles north from Yountville. 205 Comment
  UCD18120  Eriogonum nudum var. oblongifolium K. Carpenter; with E. Dean and K. Chaney. 2000-8-18 57 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., top of ridge by air quality station. 560 Comment
  SEINET11934232  Eriogonum tripodum F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -301 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 780 Comment
  CAS-BOT-BC267864  Eriogonum umbellatum var. bahiiforme Peter H. Raven 1951-6-10 2932 Napa Crater Region e. of Palisades 762 Comment
  SBBG28227  Eriogonum vimineum S. G. Stokes 1933-8-27 60 Napa Sage Cyn, Napa Mtns Comment
  SBBG118106  Eriophyllum lanatum C. Bornstein, E. Collins 2004-6-19 Napa Pope Valley Rd, ca. 1.6 mi N of jct with Lower Chiles Valley Rd 259 Comment
  JEPS106954  Eriophyllum lanatum var. achilleoides Jake Ruygt 1990-5-12 2538 Napa Wooden Valley, north of Wooden Valley School 237 Comment
  RSA195303  Eriophyllum lanatum var. achilleoides Gilbert Muth 1967-5-17 669 Napa Oat Hill Road, Calistoga 244 Comment
  UCD54313  Eriophyllum lanatum var. achilleoides K. Carpenter; with E. Dean and K. Chaney. 2000-8-18 58 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., top of ridge by air quality station. 560 Comment
  CAS-BOT-BC301059  Eriophyllum lanatum var. achilleoides Kate Eastwood Phelps 1930-7-1 s.n. Napa Sanitarium, Napa Valley Comment
  JEPS34726  Eriophyllum lanatum var. achilleoides W. L. Jepson 1936-5-31 17573 Napa La Jota Howell Mt., La Jota Comment
  SFV5089  Eriophyllum lanatum var. achilleoides B. C. Templeton 1957-6-27 s. n. Napa Calistoga. Near Hill and Connors ranches. Comment
  UC164782  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1904-5-23 2102 Napa hills on e side Napa Valley (near Calistoga) 243 Comment
  UCD117766  Erodium botrys Lisa Arimoto; Plant Biology 102 Collectors 2012-5-5 7 Napa Las Posadas State Experimental Forest. Northeastern part of property, in Recreation Flat valley. 386 Comment
  JEPS106525  Erodium brachycarpum Jake Ruygt 1991-4-20 2629 Napa Cooksley Lake, Friesen's Lakes,Angwin 615 Comment
  UCD169885  Erodium cicutarium Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 724 Napa Knoxville Wildlife Area. 352 Comment
  OBI74549  Eryngium aristulatum David J. Keil 1986-11-8 19795 Napa Along Lake Berryessa Knoxville Rd. near Knoxville. 3.0 mi south of turnoff to Homestake McLauglin Mine/Mill. 350 Comment
  JEPS17445  Eryngium aristulatum var. aristulatum Willis L. Jepson 1893-4-26 14276 Napa Rutherford Comment
  JEPS17447  Eryngium aristulatum var. aristulatum W. L. Jepson 1893-9-25 14268 Napa Yountville Comment
  UC642245  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-6-6 15837 Napa 5 mi. n. Napa City; Napa Valley 30 Comment
  UCD164729  Eryngium jepsonii Jake Ruygt 2014-7-7 6023 Napa Pope Canyon Road at large vernal marsh. 187 Comment
  RSA101849  Erysimum capitatum var. capitatum G. B. Rossbach, Ruth P. Rossbach 1938-6-1 852 Napa Above Wooden Valley on side toward Napa, about 7 mi NE of Napa. 488 Comment
  SEINET14045965 Image available Erythranthe microphylla L. Constance 1938-1 2040 Napa above Wooden Valley 8 mi. ne. of Napa; e. slope of Howell Mountains, North Coast Ranges. 457 Comment
  SEINET8274778  Erythranthe microphylla Richard W. Cleveland 1951-4-8 16 Napa on road from Monticello to Napa, 8 miles east of Napa. Comment
  CAS-BOT-BC133282  Erythronium helenae Elmer I. Applegate 1934-3-11 8842 Napa St. Helena Creek, half a mile south of Lake County line Comment
  CAS-BOT-BC133292  Erythronium helenae Ella Dales Cantelow 1938-5-1 3981 Napa N.E. slope Mt. St. Helena Comment
  JEPS113963  Erythronium helenae Jake Ruygt 1976-4-15 10 Napa 3.1 miles west of Butts Canyon Road on Aetna Springs Road. Aetna Springs 7.5' Quad. Comment
  RSA176484  Erythronium helenae Elmer I. Applegate 1932-3-22 7031 Napa Volcanic crater region of Mount St. Helena, just east of the Palisades on the Old Stage Road Comment
  RSA52730  Erythronium helenae I. L. Wiggins 1949-4-30 s.n. Napa Mount St. Helena near Lake Co. Line Comment
  UCD166145  Erythronium helenae John Gibson 2016-3-19 6 Napa Near Aetna Springs, ca 2 mi from jct with Pope Valley Rd and 1.1 miles west of Aetna Springs. 365 Comment
  UCD69385  Erythronium helenae R. B. Kimsey; L. S. Kimsey 1997-5-3 s.n. Napa A half mile west of Aetna Spring, on Sugar Loaf Mountain. Comment
  JEPS110735  Eschscholzia caespitosa Jake Ruygt 1994-3-15 3314 Napa Chiles Canyon Road about 1 mile from Chiles Valley 350 Comment
  JEPS120329  Eschscholzia caespitosa Jake Ruygt 1978-5-7 295 Napa 1.4 miles east of Spanish Flat turnoff on Highway 128. Lake Berryessa 7.5' Quad. Comment
  UCD34213  Eschscholzia caespitosa Beecher Crampton 1978-4-24 9564 Napa Napa County, Markley Canyon on Hwy 128. Comment
  RSA15683  Eschscholzia californica var. crocea Carl B. Wolf 1928-2-25 1485 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  CAS-BOT-BC5900  Eschscholzia formosa Charles Fuller Baker 1903-4-20 2614 Napa Mount St. Helena Comment
  JEPS129127  Eucalyptus tereticornis Jake Ruygt 2001-3-21 4297 Napa Napa River on the east side of the oxbow, Napa. Napa 7.5' Quad. Comment
  JEPS126043  Eucrypta chrysanthemifolia var. chrysanthemifolia Jake Ruygt 1989-4-8 2254 Napa About 1/2 mile south of Monticello Dam on Vaca Mount. Monticello Dam 7.5' Quad. Comment
  JEPS51926  Euphorbia crenulata W. L. Jepson 1938-5-22 18833 Napa Butts Canyon; South Fork Comment
  JEPS129137  Euphorbia maculata Jake Ruygt 1978-6-19 365 Napa Trefethen Winery, Oak Knoll Avenue. Napa 7.5' Quad. Comment
  UCD39035  Euphorbia spathulata Beecher Crampton 1962-5-16 6435 Napa About 2 miles S of Aetna Springs, along road to Pope Valley. Comment
  UCD47964  Euphorbia spathulata Ryan Knox; E, McDermott, and G. Walden 2002-4-13 10 Napa Napa Co., McLaughlin Natural Reserve, from old town of Knoxville travel 0.4 miles south, turn west along Berryessa-Knoxville Rd. and continue 0.7 miles. Collected on north side of road near calcium seep area. 424 Comment
  UCD47965  Euphorbia spathulata Michele Disney; J. Westbrook, S. Ratay,R. Wolfson, A. Houser,S. Wathen 2000-4-22 31 Napa Napa Co., McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville road. 396 Comment
  RSA10686  Euphorbia spathulata C. B. Wolf 1928-5-3 1801 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  SBBG128016  Euthamia occidentalis L. Ahart 2009-10-12 16420 Napa below the high water line of Lake Berryessa, along Capell Crk E of Rest Area, 3/4 mi NE of Hwy 128 on Berryessa Knoxville Rd, 0.75 mi SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd, ca. 19 mi W of Winters 133 Comment
  JEPS122944  Festuca arundinacea Jake Ruygt 1982-5-19 1276 Napa Tubb's Lane, Calistoga. Quad: Calistoga. Comment
  JEPS76088  Festuca californica W. L. Jepson 1938-5-22 18838 Napa Howell Mountain Comment
  UCD19336  Festuca californica M. A. Bibbo; E. Dean 2001-7-6 28 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Near point of Quail Ridge, along upper road by powerline, ca. 0.4 air miles from jct of W and E roads, on steep N facing slope. 274 Comment
  UCD36169  Festuca californica Beecher Crampton 1952-3-24 1030 Napa 7.5 miles east of Rutherford, along Highway 128. Comment
  CAS-BOT-BC278345  Festuca californica subsp. californica L. R. Abrams 1928-5-3 12205 Napa St. Helena Grade Comment
  UCD65850  Festuca californica subsp. californica Beecher Crampton 1956-5-25 3459 Napa Head of Markley Canyon, Vaca Mtns. Comment
  UC187105  Festuca idahoensis J. P. Tracy 1902-5-19 1549 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 518 Comment
  UCD19321  Festuca idahoensis M. A. Bibbo; E. Dean 2001-7-6 13 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West rd, ca. 2.6 air miles from jct. with S Decker canyon rd. E (upslope) side of the rd on a W facing slope. 228 Comment
  SBBG115627  Festuca microstachys B. Crampton 1962-5-16 6434 Napa ca. 0.5 mi W of Aetna Springs Comment
  JEPS45827  Festuca occidentalis Eleanor Armstrong 1932-5-29 179 Napa near Summit; Mt. St. Helena 274 Comment
  POM126174  Festuca occidentalis Joseph P. Tracy 1902-5-18 1544 .5 Napa Head of Moore's Creek, 3-4 miles east of Angwin's. 488 Comment
  UCD36938  Festuca roemeri Beecher Crampton 1956-5-25 3458 Napa Vaca Mountains, head of Markley Canyon. Comment
  UCD66253  Festuca roemeri Beecher Crampton 1960-5-17 5533 Napa 5 miles east of Rutherford, southern slopes of Conn Reservoir, along State Highway 128. Comment
  JEPS76120  Festuca rubra W. L. Jepson 1938-6-8 18894 Napa Butts Canyon South Fork Butts Creek Comment
  UC187104  Festuca rubra Joseph P. Tracy 1903-5-15 1867 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  SEINET10508611  Festuca tracyi Joseph P. Tracy 1902-5-15 Tracy 1479 Napa Head of Moore's Creek, 3-4 mi. E. of Angwin's Howell Mt. Comment
  UCD162701  Foeniculum vulgare Jake Ruygt 1978-6-18 357 Napa Napa, near railroad track south of Imola Avenue. (Coordinates estimated by label maker at UC Davis). 3 Comment
  UCD19915  Frangula californica subsp. californica E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 771 Napa Quail Ridge Reserve. SW corner of Lake Beryessa, along South Decker Canyon Road, S of junction with Cut-off Road. 219 Comment
  CAS-BOT-BC53524  Frangula californica subsp. tomentella Mrs. G. Earle Kelly 1918-8-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC53526  Frangula californica subsp. tomentella Carl B. Wolf 1928-2-25 1509 Napa 3 mi. No. of summit of the Mt. St. Helena Grade, near Lake - Napa Cos. Line. Comment
  CHSC108737  Fraxinus dipetala B. Castro; L. P. Janeway 2002-5-12 1367 Napa Inner North Coast Ranges. Near top of south side of canyon of Cedar Creek, along the road from Devilhead Road. Near road edge. 563 Comment
  RSA298947  Fraxinus latifolia Edward Lee 1936-3-15 1803 Napa Rutherford, Pope Valley Road, 3/4 mile out of Rutherford Comment
  SEINET13943203 Image available Fraxinus latifolia Lewis S. Rose 1955-1 55190 Napa Below Conn Lake; 4 mi NE of Rutherford; ca. 200 ft alt. 61 Comment
  UCD40902  Fremontia californica S. Boshoren 1983-5-29 25 Napa 5 miles from Knoxville, NW on Berryessa-Knoxville Road. Comment
  CAS-BOT-BC205890  Fremontodendron californicum M. A. Nobs 1939-6-3 s.n. Napa Half way between Monticello and Lower Lake Comment
  CAS-BOT-BC205891  Fremontodendron californicum J. Clausen 1935-5-22 1061 Napa 15.9 mi. S. E. of Lower Lake on the Monticello road beyond the Napa Co. line Comment
  POM224211  Fremontodendron californicum H. L. Mason 1935-5-30 10009 Napa Four miles north of Knoxville Mines. Comment
  RSA77221  Fremontodendron californicum J. T. Howell 1939-5-7 14653 Napa Near head of Hunting Creek, northwest of Knoxville Comment
  UCD40901  Fremontodendron californicum Katherine Countrey 1983-5-29 21 Napa On Knoxville-Berryessa Raod, 5 miles northwest of Knoxville, on north side of road. 365 Comment
  JEPS128912  Fremontodendron californicum subsp. californicum Jake Ruygt 1992-5-20 2996 Napa North of Leoma Lakes, Wild Horse Valley Ranch (Lair). Mount George 7.5' Quad. Comment
  UC138489  Fremontodendron californicum subsp. californicum C. F. Baker 1903-5-8 2972 Napa Pacific Coast, Knoxville Knoxville; Pacific Coast, Knoxville Comment
  CAS-BOT-BC130075  Fritillaria affinis Alice Eastwood 1918-5-1 6858 Napa Mt. St. Helena Comment
  UC545849  Fritillaria affinis E. Crum 1936-3-15 1740 Napa Butts Canyon, Pope Valley-Middletown Road Butts Canyon; , Pope Valley-Middletown Road Comment
  RSA91949  Fritillaria affinis Beecher Crampton 1953-2-26 988 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  UCD36150  Fritillaria affinis Beecher Crampton 1953-2-26 988 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  RSA123591  Fritillaria pluriflora Milo S. Baker 1940-3-10 9499 Napa About 5 miles north of Knoxville, right beside road to Lower Lake Comment
  UCD139675  Fritillaria recurva Beecher Crampton 1961-4-6 5855 Napa north end of Capell Valley, above Capell Creek, along State Hwy 128. Comment
  RSA52739  Fritillaria recurva I. L. Wiggins 1949-4-30 12091 Napa Mount St. Helena near Lake Co. Line Comment
  OBI57145  Galium andrewsii David J. Keil, with V. L. Holland, L. D. Oyler, G. F. Hrusa, G. L. Stebbins, et al. 1994-6-6 24508 Napa Just south of Lake Hennessy on south side of Highway 128 Comment
  UCD148802  Galium andrewsii subsp. andrewsii Ellen Dean; Diana Hickson 2014-4-29 8109 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 592 Comment
  UCD112244  Galium aparine Christopher Mallek 2008-5-12 AS2- 21 Napa Aetna Springs. 668 Comment
  UCD49247  Galium aparine L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 8 Napa SW end of Lake Barryessa, Quail Ridge Reserve, along stream that runs along the E side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd. 10-20 ft. from stream. 152 Comment
  RSA10657  Galium aparine Carl B. Wolf 1928-5-3 1832 Napa Summit of Mount St. Helena Grade, N of Calistoga Comment
  UCSB9839  Galium aparine Keator, Glenn 1959-3-28 Napa About 1.5 miles S from Conn's Picnic Area in Lake henessy Area Comment
  JEPS110564  Galium bolanderi Jake Ruygt 1987-5-23 2006 Napa Cedar Roughs 426 Comment
  JEPS52700  Galium bolanderi G. L. Stebbins Jr. 1963-6-12 6130 Napa along creek 2 mi s Lake Berryessa (s side of creek, n-facing slope); Pope Creek 149 Comment
  UC1196107  Galium californicum subsp. californicum Joseph P. Tracy 1899-6-26 426 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  UC1196108  Galium californicum subsp. californicum Joseph P. Tracy 1899-7-3 425 Napa 3-4 mi e Angwin's (hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 518 Comment
  UCD73055  Galium californicum subsp. californicum Ellen Dean; S. Rae 2008-5-21 4974 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 213 Comment
  CDA6658  Galium divaricatum J. T. Howell 1943-6-19 18237 Napa Hills west of Napa Valley between St. Helena and Mt. St. John Comment
  JEPS110602  Galium divaricatum Jake Ruygt 1979-4-29 563 Napa end of Kortum Canyon Rd. 256 Comment
  UCD159926  Galium parisiense Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q43-1. 243 Comment
  UCD19332  Galium porrigens M. A. Bibbo; E. Dean 2001-7-6 24 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Near point of Quail Ridge, along upper road by powerline, ca. 0.2 air miles from jct of W and E roads. 312 Comment
  UCD118603  Galium porrigens var. porrigens William Goss; Plant Biology 102 Collectors 2012-5-5 2 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 417 Comment
  UC1562617  Galium porrigens var. tenue Barbara Ertter with Annetta Carter 1989-5-28 8499 Napa Berryessa-Knoxville Rd n; Lake Berryessa (9.0 mi s of Knoxville tunnel, base of e-facing slope at edge of stream) 243 Comment
  UCD168538  Gamochaeta ustulata Stephen P. Rae; A. Solomeshch 2007-5-13 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  CDA11161  Garrya congdonii G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11573 Napa North Coast Biodiversity Arena; 2 m. NW of Aetna Springs along Schwartz Ck. Rd. Comment
  CDA14220  Garrya congdonii G. F. Hrusa 1997-2-3 13617 Napa North Coast Biodiversity Arena; margin of Lake Hennessey, across from 2nd major canyon upstream from Conn Dam ~ 1/2 mi. Comment
  CHSC108726  Garrya congdonii B. Castro; L. P. Janeway 2002-5-12 1363 Napa Inner North Coast Ranges. SW-facing slope overlooking Pocock Creek along sides of the dirt road from Devilhead Road. 502 Comment
  JEPS66757  Garrya flavescens W. L. Jepson 1936-2-8 17400 Napa Adam and Eve Ridge; Howell Mt. Comment
  POM259610  Garrya flavescens subsp. congdonii J. T. Howell 1939-5-7 14652 Napa On Lower Lake-Knoxville road at Lake county line. Comment
  CAS-BOT-BC144377  Garrya fremontii John Thomas Howell 1939-2-5 14597 Napa Summit of Wooden Valley Grade Comment
  CAS-BOT-BC144380  Garrya fremontii H. E. McMinn 1925-1-23 1363 b Napa Summit Wooden Valley Grade Comment
  CAS-BOT-BC144381  Garrya fremontii Willis L. Jepson 1896-2-23 s.n. Napa Near Toland House, Howell Mt. Comment
  UC187227  Gastridium ventricosum Joseph P. Tracy 1905-7-5 2212 Napa head of Moore's Creek Howell Mountain (3-4 mi e of Angwin's, Howell Mountain); Northern Coast Ranges, head of Moore's Creek 365 Comment
  CAS-BOT-BC208042  Genista monspessulana Peter H. Raven 1952-5-26 4040 Napa St. Helena to Howell Mt. 304 Comment
  JEPS64794  Genista monspessulana W. L. Jepson 1923-6-3 9972 Napa a little S of Calistoga (east-side road) Comment
  UCD103394  Geranium dissectum M. Wiesendanger 1927-5-4 666 Napa Near Monticello. Comment
  JEPS106708  Geranium molle Jake Ruygt 1986-3-22 1666 Napa Vaca Mountains, east of Markley Cove Resort 304 Comment
  UCR92541  Geranium molle A. C. Sanders 1996-6-1 18195 Napa Napa, SE edge of town at Skyline Park, E end of Imola Road East. 91 Comment
  SEINET5744393 Image available Geranium molle Peter Stekel 1974-1 21 Napa State Hwy 128 along N slope of Rag Creek headwaters, 4 miles E of junction of State Hwys 128 and 121.; Rag Creek 305 Comment
  RSA83101  Gilia capitata Verne Grant, Alva Grant 1946-7-7 7702 Napa wooded canyon on east slope of Mayacama Mountains, ca. 8 miles from Vichy Springs on Montichello road. Comment
  RSA83139  Gilia capitata Verne Grant, Alva Grant 1947-5-11 7985 Napa ca. 8 miles NE of Vichy Springs on Monticello road, Mayacama Mountains. Comment
  UCR202432  Gilia capitata subsp. capitata Peter L. Morrell 1993-6-6 269 Napa Coast Range, Along Hwy 29, north side of road, 1 mile south of Robert Louis Stevenson State Park, c. 3 miles north of Calistoga 146 Comment
  UCD148838  Gilia tricolor Ellen Dean; Diana Hickson 2014-4-29 8142 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 511 Comment
  UCD117953  Gilia tricolor Everett H. Everson 1951-4-8 22 Napa 4.8 miles southwest of Monticello, beside road to Napa. Comment
  UC908613  Gilia tricolor subsp. tricolor Herbert L. Mason 1926-3-14 2731 Napa Mount St. Helena Comment
  JEPS115774  Glinus lotoides Lowell Ahart 2009-10-12 16444 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of 133 Comment
  SBBG100115  Glinus lotoides B. Ertter 1988-10-2 7966 Napa Lake Hennessey ca. 15 air mi NNW of Napa, on Conn Crk; E of boat-launching ramp on SE edge 91 Comment
  UC1563683  Glinus lotoides Barbara Ertter with Elizabeth Neese 1988-10-2 7966 Napa 15 air mi nnw of Napa (Lake Hennessey on Conn Creek, e of boat-launching ramp on se edge); North Coast Ranges, Lake Hennessey, Conn Creek 91 Comment
  JEPS122936  Glyceria occidentalis Jake Ruygt 1992-5-6 2933 Napa West of Foster Road, Napa (Raynes property). Quad: Napa. Comment
  CDA5998  Gnaphalium canescens R. Barrett 1957-10-17 415 -57 Napa County Corp. yard, Napa. 0 Comment
  CHSC103022  Gnaphalium luteoalbum Lowell Ahart 2009-10-12 16421 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CDA6057  Gnaphalium stramineum R. Barrett 1957-10-17 415 -57 Napa County Corp. yard, Napa. 0 Comment
  UCD160703  Grindelia camporum Ellen Dean; Jake Ruygt 2015-5-23 8762 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Headwaters of Nevada Creek. 579 Comment
  UCD63179  Grindelia camporum Jake Ruygt 2004-6-12 4617 Napa 3/4 mile east of Blue Monday Mine. 365 Comment
  CAS-BOT-BC304883  Grindelia hirsutula Marcus E. Jones 1924-4-24 s.n. Napa Napa Comment
  CAS-BOT-BC304893  Grindelia hirsutula L. R. Abrams 1916-7-2 5751 Napa Near St. Helena Sanitarium Comment
  CAS-BOT-BC304905  Grindelia hirsutula Peter H. Raven 1952-6-28 4211 Napa Chiles Valley 243 Comment
  JEPS41915  Grindelia hirsutula W. L. Jepson 1936-5-31 Napa near Sanitarium; Howell Mr., Napa Range Comment
  JEPS41928  Grindelia hirsutula Willis L. Jepson 1894-7-19 Napa upper Napa Valle; Napa Valley Comment
  UC1177101  Grindelia hirsutula Peter H. Raven 1951-6-26 3098 Napa Imola to Napa Junction 24 Comment
  UC32140  Grindelia hirsutula Edw. L. Greene Napa St. Helena Comment
  SEINET181248  Grindelia hirsutula var. hirsutula Bassett Maguire, RR Maguire; C. B. Maguire 1934-6-7 15299 Napa 20 miles N of Napa Comment
  UCD148104  Gutierrezia sarothrae Jake Ruygt 2009-7-28 5466 Napa Blue Ridge, about 1/4 mile north of Mays Flat. 737 Comment
  UCD161617  Gutierrezia sarothrae Jake Ruygt 2003-11-4 4565 Napa Blue Ridge about 1 mile north of Mays Flat. (Coordinates converted from UTM data by label maker). 716 Comment
  CAS-BOT-BC302220  Harmonia nutans J. W. Stacey 1933-5-16 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC302221  Harmonia nutans John Thomas Howell 1931-4-2 6075 Napa Wooden Valley Grade 5 miles east of Napa Comment
  CAS-BOT-BC302233  Harmonia nutans Alice Eastwood 1923-5-9 11753 Napa Mt. St. Helena Comment
  CAS-BOT-BC302242  Harmonia nutans David D. Keck 1933-5-28 2329 Napa Howell Mountain, ca. 1 mile southwest of Pacific Union College Comment
  CDA31865  Harmonia nutans D. G. Kelch 2001-3-18 1 .017 Napa Soda Canyon Road. Comment
  JEPS122708  Harmonia nutans Jake Ruygt 1998-6-8 4018 Napa Meas Ranch, slope overlooking Soda Canyon. Quad: Yountville. Comment
  JEPS40057  Harmonia nutans Mrs. Mary Van E. Ferguson 1919-4-13 Napa near Atlas Mt. Comment
  UC166274  Harmonia nutans Joseph P. Tracy 1902-5-20 1565 Napa on Howell Mt. road Northern Coast Ranges, Angwin Creek 457 Comment
  JEPS106638  Helenium bigelovii Jake Ruygt 1996-6-15 3745 Napa White Cliff Springs, above Soda Valley (Soda Spring) 365 Comment
  OBI16346  Helenium puberulum Robert F. Hoover 1966-8-23 9934 Napa Butts Cyn near Lake Co. line Comment
  UCD132770  Helianthella californica Heidi E. M. Dobson 1977-6-2 263 Napa above Mt. Veeder road. Comment
  JEPS33580  Helianthella californica subsp. californica W. L. Jepson 1936-5-29 17548 Napa Adam and Eve Ridge Howell Mt. Comment
  CAS-BOT-BC314721  Helianthella californica var. californica J. Clausen 1935-5-23 1072 Napa Howell Mountain near summit 6.5 mi. N. of St. Helena Comment
  UCD48642  Helianthella californica var. californica A. Collier; D. Caterson and S. Kenady 2002-5-4 13 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of West and East roads. Along upper road leading to power lines, 20 m. S of road. 335 Comment
  CAS-BOT-BC305532  Helianthus bolanderi John Thomas Howell 1933-8-27 11643 Napa East of Chiles Valley on road to Winters, Napa Range Comment
  CAS-BOT-BC305616  Helianthus californicus John Thomas Howell 1933-8-27 11624 Napa Sage Canyon, Napa Range Comment
  JEPS4457  Helianthus californicus Willis L. Jepson 1893-9-24 13424 Napa Angwin's Meadows Napa River Basin, Howell Mt., Angwin's Meadows Comment
  JEPS4458  Helianthus californicus W. L. Jepson 1893-9-24 13426 Napa Angwin's Meadows Howell Mt., Angwin's Meadows Comment
  UC127134  Helianthus californicus Harley P. Chandler Sep 7 1906-Sep 14 1906 7128 Napa Howell Mt., Alta Loma Ranch 487 Comment
  CAS-BOT-BC305674  Helianthus gracilentus G. L. Stebbins 1971-7-28 8052 Napa Near Hunting Creek, along road from Knoxville to Lower Lake 548 Comment
  UCD161782  Helianthus gracilentus Jake Ruygt 2000-6-10 4273 Napa Devilhead Road near Lone Pine Thicket. 640 Comment
  UCD75846  Heliotropium curassavicum var. oculatum Jake Ruygt 1979-6-9 688 Napa 21.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville R. 487 Comment
  SBBG128693  Heliotropium europaeum L. Ahart 2009-10-12 16433 Napa below high water line of Lake Berryessa, along Capell Crk E of Rest Area, 3/4 mi NE of Hwy 128 on Berryessa Knoxville Rd, 3/4 mi SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd, ca. 19 mi (air) W of Winters 133 Comment
  CHSC102527  Helminthotheca echioides Lowell Ahart 2009-10-12 16427 Napa Below the high water line of Lake Berryessa, along Capell Creek south of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters.F 133 Comment
  JEPS38351  Hemizonia congesta subsp. clevelandii Willis L. Jepson 1894-7-19 Napa Upper Napa Valley Napa River Basin Comment
  UC726257  Hemizonia congesta subsp. lutescens A. A. Heller 1941-9-22 16316 Napa near Napa junction Comment
  CAS-BOT-BC309840  Hemizonia congesta subsp. luzulifolia Peter H. Raven 1951-6-26 3081 Napa Cappell Valley 365 Comment
  CAS-BOT-BC309841  Hemizonia congesta subsp. luzulifolia Peter H. Raven 1952-6-28 4203 Napa Conn Valley 137 Comment
  JEPS40377  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1938-9-24 19019 Napa canyon of James Creek; Pope Valley 304 Comment
  UCD67774  Hemizonia congesta subsp. luzulifolia D. Sanchez-Mata; P. Rodriguez-Rojo 1996-10-19 s.n. Napa MacLaughlin UC Natural Reserve. 680 Comment
  UCD161401  Heracleum maximum Jake Ruygt 1979-4-9 495 Napa NE corner of Trefethen Vineyards, Dry Creek. (Coordinates estimated by label maker at UC Davis). 22 Comment
  HSC46349  Hesperocyparis sargentii J. P. Smith, J. O. Sawyer 1970-5-17 3786 Napa 9 mi. N of Pope Valley Comment
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Jun 12 2012
  UCD170292  Hesperocyparis sargentii Daniel Potter; Ninh Khuu, Kai Battenberg 2016-2-21 832 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 405 Comment
  JEPS122853  Hesperolinon bicarpellatum Adam C. Schneider with Dick O'Donnell 2013-5-26 232 Napa North side of Butts Road, 3/4 miles southeast of Lake/Napa county line. Comment
  POM138927  Hesperolinon bicarpellatum Katherine Brandegee 1911-6-29 s.n. Napa Butts Canyon near Aetna Springs. Comment
  UC1212369  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-5-31 4108 Napa above Sage Creek (0.8 mi s of Chiles Valley); Inner North Coast Ranges 304 Comment
  UCD82614  Hesperolinon bicarpellatum Stephen P. Rae 2009-5-18 s. n. Napa Continuum Vineyards. Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 427 Comment
  UCD82615  Hesperolinon bicarpellatum Stephen P. Rae 2009-5-18 s. n. Napa Continuum Vineyards. Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 427 Comment
  RSA92926  Hesperolinon breweri Peter H. Raven 1951-6-26 s.n. Napa Cappell Valley. 366 Comment
  CAS-BOT-BC176012  Hesperolinon californicum Freed W. Hoffman 1947-6-18 1650 Napa Pope Valley road Comment
  JEPS122783  Hesperolinon californicum Jake Ruygt 1990-5-12 2541 Napa Wooden Valley, north of Wooden Valley School. QUAD: Capell Valley. Comment
  JEPS122905  Hesperolinon californicum Adam C. Schneider 2015-5-19 935 Napa East of Monticello Rd. (CA Hwy 121) Comment
  OBI12547  Hesperolinon californicum Helen K. Sharsmith 1952-5-31 4114 Napa Inner North Coast Ranges. S margin Chiles Valley near Chiles Valley School 305 Comment
  UC1212439  Hesperolinon californicum Helen K. Sharsmith 1957-6-18 4601 Napa s slope Conn Dam (between Rutherford and Chiles Valley); Inner North Coast Ranges 121 Comment
  UC1212463  Hesperolinon californicum Helen K. Sharsmith 1958-10-16 4615 a Napa se-facing slope on s side Conn Dam (just above road); Inner North Coast Ranges 121 Comment
  CAS-BOT-BC176056  Hesperolinon clevelandii John H. Thomas 1955-5-21 5116 Napa Sarco Creek drainage, near State Highway No. 37, about 6 miles from Napa 274 Comment
  CAS-BOT-BC176058  Hesperolinon clevelandii Peter H. Raven 1950-6-20 2387 Napa Howell Mtn., on NNE side road to Pope Valley Comment
  CAS-BOT-BC176059  Hesperolinon clevelandii Peter H. Raven 1951-6-10 2941 Napa Crater Region e. of Palisades 762 Comment
  UCD164732  Hesperolinon clevelandii Jake Ruygt 2014-6-14 6002 Napa Ranch near Oat Hill. 619 Comment
  UCR71418  Hesperolinon clevelandii H. K. Sharsmith 1965-5-18 5519 Napa Inner North Coast Ranges, 1 mi. above Aetna Springs on mine road & c. 5 mi. beyond town of Pope Valley 305 Comment
  JEPS129121  Hesperolinon disjunctum Jake Ruygt 2015-5-2 6089 Napa West of Buck Mountain near Nevada Creek. Knoxville 7.5' Quad. Comment
  UC17251  Hesperolinon disjunctum Willis L. Jepson 1892-7 19006 Napa Knoxville Mountain Region of Clear Lake Comment
  JEPS121561  Hesperolinon micranthum Adam C. Schneider with Dick O'Donnell 2013-5-26 198 Napa Along Chiles Valley Road. Comment
  UC1212276  Hesperolinon micranthum Helen K. Sharsmith 1951-10-21 4038 Napa above Sage Creek (w side of Chiles Valley); Inner North Coast Ranges, Chiles Valley 259 Comment
  UC1212413  Hesperolinon micranthum Helen K. Sharsmith 1957-5-30 4595 Napa near road from Cappell Valley to Rutherford (Soda Creek canyon); Inner North Coast Ranges, Soda Creek 213 Comment
  UC1212412  Hesperolinon micranthum Helen K. Sharsmith 1957-5-30 4594 Napa nw of Cappell Valley; Inner North Coast Ranges 243 Comment
  UC1601271  Hesperolinon micranthum Helen K. Sharsmith 1958-11-2 4639 Napa road between Wooden Valley and Cappell Valley (Hwy 37) 2.2 mi beyond junction with Wooden Valley road (Locality for HKS 4592); Inner North Coast Ranges 274 Comment
  UCD110545  Hesperolinon micranthum Robert E. Preston 1987-6-13 563 Napa ca. 1 mi sw of Big Basin. 292 Comment
  JEPS122790  Hesperolinon sharsmithiae Jake Ruygt 2009-6-22 5446 Napa Near Capell Creek, west of Bear Flat. QUAD: Capell Valley. Comment
  JEPS121523  Hesperolinon spergulinum Adam C. Schneider with Dick O'Donnell 2013-5-26 205 Napa Aetna Springs Road, 1.4 miles west of Pope Valley Road Comment
  JEPS32294  Hesperolinon spergulinum Willis L. Jepson 1901-8-6 1728 Napa Howell Mt. grade Napa River Basin Comment
  UC703179  Hesperolinon spergulinum John Thomas Howell 1941-6-21 16316 Napa hills sw St. Helena Comment
  SEINET10460603  Heterocodon rariflorum Willis L. Jepson Jepson 1893 Napa HOWELL MTN Comment
  UCD159954  Heteromeles arbutifolia Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Top of east slope, above Q48. 243 Comment
  UC1999862  Heterotheca oregona var. oregona J. C. Semple, S. Heard 1986-8-20 8566 Napa Just N of Calistoga on CA-29m, 15.3 km SW of Lake county line. Comment
  UC1999863  Heterotheca oregona var. rudis J. C. Semple, S. Heard 1986-8-20 8567 Napa Just N of Calistoga on CA-29; 15.3 km SW of Lake Co. line Comment
  UC420437  Heuchera micrantha var. erubescens H. P. Chandler 1907-5-14 7582 Napa White Sulphur Spring St. Helena Comment
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1
  CAS-BOT-BC312335  Hieracium albiflorum Carl B. Wolf 1928-5-3 1808 Napa 2 miles south of Hawkins Mount Inn Camp Comment
  UCD115136  Hirschfeldia incana Jack Major 1961-6-13 543 Napa Monticello Dam, State Highway 128. Comment
  POM158605  Hoita macrostachya C. C. Parry 1881-1 s.n. Napa Calistoga Comment
  JEPS65628  Hoita macrostachya Willis L. Jepson 1901-8-6 1734 Napa Howell Mt. Napa River Basin Comment
  RSA517453  Hoita macrostachya Donald G. Nelson 1940-8-7 698 Napa Highway from Napa to Wooden Valley, north slopes of George Mt. 152 Comment
  CAS-BOT-BC280702  Holcus lanatus Elsa G. Ruckert 1960-4-29 s.n. Napa 300 yards from 6495 Dry Creek Road 365 Comment
  UCD38948  Holocarpha virgata Beecher Crampton 1961-9-19 5979 Napa 3 miles east of Moskowite Corner, State Hwy. 128. Comment
  CAS-BOT-BC149995  Holodiscus discolor var. discolor Peter H. Raven 1950-6-20 2344 Napa Between Conn Valley & Howell Mtn., Napa Range Comment
  JEPS80610  Holozonia filipes Joe Callizo and Glenn Clifton 1981-8-13 Napa ridgetop, Los Posadas State Forest Los Posadas State Forest Comment
  UCD148837  Hordeum brachyantherum Ellen Dean; Diana Hickson 2014-4-29 8141 a Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 560 Comment
  UCD83854  Hordeum brachyantherum Ellen Dean; Kate Mawdsley 2010-4-30 5944 a Napa Valley Gate Vineyard, lands near intersection of Hwy 12 and Kirkland Ranch Rd. 71 Comment
  UCR224885  Hordeum brachyantherum Ellen Dean, Kate F. Mawdsley 2010-4-30 5944 A Napa Valley Gate Vineyard, lands near intersection of Hwy 12 and Kirkland Ranch Road 72 Comment
  JEPS122921  Hordeum brachyantherum subsp. brachyantherum Jake Ruygt 1991-6-22 2728 Napa Hunting Creek at mouth of sensitive plant canyon. Quad: Jericho Valley. Comment
  UC1023500  Hordeum brachyantherum subsp. californicum Peter H. Raven 1951-6-10 2927 Napa E of Palisades (Crater Region) 762 Comment
  UCD85635  Hordeum depressum R. Tofsrud 1949-4-1 s.n. Napa Calistoga. Myrtledale Hot Springs. Comment
  UC187092  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1903-5-18 1855 Napa Calistoga Hot Springs Northern Coast Ranges, Calistoga Hot Springs 91 Comment
  UCD85898  Hordeum marinum subsp. gussoneanum R. Tofsrud 1949-1 s.n. Napa Between Montecello and Knoxville Comment
  UCD120798  Hordeum murinum Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7334 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Near entrance gate, west of fire station buildings. 521 Comment
  CAS-BOT-BC284762  Hordeum murinum subsp. glaucum Peter H. Raven 1950-4-15 1704 Napa Napa 9 Comment
  UC50689  Hordeum murinum subsp. leporinum H. P. Chandler 1900-5-7 626 Napa Rutherford Comment
  UCD106054  Hosackia crassifolia Beecher Crampton 1965-6-30 7423 Napa Solano-Napa Counties, Vaca mountains, Mt. Vaca. 859 Comment
  UCD75716  Hosackia crassifolia var. crassifolia Jake Ruygt 1989-5-20 2340 Napa Vaca Mtns. About 1 mile north of Mt. Vaca. 810 Comment
  CAS-BOT-BC400800  Hypericum anagalloides Rimo Bacigalupi 1928-6-20 1876 Napa Howell Mt 10 mi west of St Helena Comment
  CAS-BOT-BC410810  Hypericum concinnum L. R. Abrams 1916-7-2 5754 Napa Near St. Helena Sanitarium Comment
  CAS-BOT-BC410811  Hypericum concinnum J. Clausen 1935-5-23 1072 a Napa Howell Mountain, near summit, 6.5 mi. N of St. Helena Comment
  JEPS66843  Hypericum concinnum W. L. Jepson 1936-2-8 17398 Napa Adam and Eve Ridge Howell Mt.; Napa Range, Howell Mt. Comment
  UC1537661  Hypericum concinnum Gordon H. True Jr. 1937-6-21 741 Napa near Lokoya Lodge near Lokoya Lodge 365 Comment
  CAS-BOT-BC410801  Hypericum concinnum H. E. McMinn 1922-6-8 168 Napa Mt Howell Summit Comment
  HSC103603  Hypericum concinnum Thomas W. Nelson, Jane Nelson 1985-5-26 7810 Napa Along Aetna Springs Rd., opposite entrance road to Aetna Mine at mile post 1.75. Comment
  UC187748  Hypericum formosum var. scouleri Katharine Brandegee 1910-7-1 Napa Howell Mt. Comment
  CAS-BOT-BC312893  Hypochaeris glabra John H. Thomas 1955-5-21 5177 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena 274 Comment
  UCD18095  Hypochaeris glabra Ellen Dean; with PLB 102 class 2000-4-29 751 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  UCD48646  Hypochaeris glabra L. Wynholds; S. Du Plessis, B. Erickson, C. Malleck 2001-4-14 16 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along N. Decker Canyon Rd., 50-70 ft. N of stream. 167 Comment
  UCD160737  Hypochaeris radicata Ellen Dean 2015-5-23 8789 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 231 Comment
  UC1134692  Iris douglasiana B. Schreiber 1936-5-3 2204 Napa 1.2 mi w Calistoga; Calistoga Quad. 152 Comment
  UCD138729  Iris fernaldii Bill Wengeler 1995-4-16 s.n. Napa approximately 5 miles north of Hwy 128 along Knoxville Road. 146 Comment
  UCD166692  Iris fernaldii Jake Ruygt 1986-5-10 1756 Napa Devil's Canyon. 426 Comment
  UC917173  Iris macrosiphon D. C. Finfrock 1950-4-2 11 Napa 2 mi from St. Helena (on Pope Valley Road) Comment
  RSA170232  Isoetes nuttallii Joseph P. Tracy 1950-5-23 18659 Napa La Jota Plateau, on hills at head of Moore s Creek, 5 miles east of Angwin s, Howell Mountain. 518 Comment
  UC484303  Juglans californica var. hindsii Carl B. Wolf 1930-11-3 1801 Napa above Wooden Valley; Napa Range, Munson Ranch 304 Comment
  POM212280  Juglans hindsii Carl B. Wolf 1930-11-3 1800 Napa On Munson Ranch, Napa Range above Wooden Valley. 305 Comment
  SD147981  Juglans hindsii Stephanie Perez 1974-4-26 21 Napa Silverado Trail N. ca. 0.5 mile north of intersection with Deer Park Road. 152 Comment
  JEPS126053  Juncus dubius Jake Ruygt 2010-6-26 5659 Napa Las Posadas State Forest, near public road. Saint Helena 7.5' Quad. Comment
  UCD19914  Juncus effusus E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 770 Napa Quail Ridge Reserve. SW corner of Lake Beryessa, along South Decker Canyon Road, S of junction with Cut-off Road. Near hair-pin turn in trail by bathtub, stove, etc. 243 Comment
  UC14892  Juncus hemiendytus var. hemiendytus J. P. Tracy 1902-5-19 1555 1/2 Napa 3-4 mi e Angwin's (Head of Moores Creek); Howell Mountain, Head of Moores Creek 518 Comment
  UC1746017  Juncus hemiendytus var. hemiendytus Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2774 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  JEPS122660  Juncus kelloggii Jake Ruygt 1998-6-20 4041 Napa On Palisades trail from RLSSP, east of Table Rock. Quad: Detert Reservoir. Comment
  JEPS67116  Juncus kelloggii Jos. P. Tracy 1902-5-18 1534 a Napa Head of Moores Creek Howell Mt. 518 Comment
  JEPS126064  Juncus orthophyllus Jake Ruygt 2000-5-24 4262 Napa Yountville Cross Road, Napa River Ecological Reserve. Yountville 7.5' Quad. Comment
  JEPS122659  Juncus oxymeris Jake Ruygt 1996-5-31 3726 Napa South of James Creek road and Butts Canyon Road, Pope Valley. Quad: Aetna Springs. Comment
  UCD167053  Juncus xiphioides Jake Ruygt 1991-7-20 2794 Napa 3.2 miles north of Pope Canyon Road on Berryessa- Knoxville Road. 118 Comment
  JEPS126106  Juniperus californica Jake Ruygt 1980-3-22 814 Napa Between Snell Valley and Big Basin. Aetna Springs 7.5' Qua. Comment
  UCD20537  Keckiella breviflora var. glabrisepala E. Dean; w/ Rob Weiss, Layne Huiet, and Kate Mawdsley 2002-6-2 1077 Napa McLaughlin UC Reserve. SE reaches of Research Hill, rocks S of Parking area at jct of old 4WD road with Knoxville-Berryessa road. NE side of Hunting Creek. 609 Comment
  UC917155  Keckiella lemmonii H. Popenoe 1949-6-4 33 Napa 11.5 mi from Winters (on road to Monticello) Comment
  SD147586  Laburnum anagyroides Greg de Nevers, Susan Charnley 1987-6-19 8229 Napa Robert Louis Stevenson State Park, Mt. St. Helena. 750 Comment
  CAS-BOT-BC26055  Lagophylla dichotoma subsp. minor David D. Keck 1933-5-29 2338 Napa bridge over Pope Creek, just south of Walters Spring. Comment
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Mar 3 2018
  SEINET7545154  Lagophylla dichotoma subsp. minor D. D. Keck 1933-1 2338 Napa Bridge over Pope Creek, just S of Walters Spring Comment
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Mar 3 2018
  CDA10869  Lagophylla minor G. F. Hrusa, M. Rejmanek 1993-5-15 10964 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UC1199151  Lagophylla minor Joseph P. Tracy 1933-6-2 12481 Napa on hills at head Moore's Creek (5 mi e of Angwin's); Howell Mountain Comment
  UCD47922  Lagophylla minor K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, and K. Watts 2000-4-28 12 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of hilltop. 545 Comment
  JEPS41064  Lagophylla minor Rimo Bacigalupi, and L. R. Heckard 1965-5-16 9114 Napa about 7 mi se Knoxville (at the s end of Cedar Valley); Cedar Valley 594 Comment
  CAS-BOT-BC341556  Lagophylla ramosissima Rimo Bacigalupi 1928-6-20 1868 Napa Howell Mt. 10 miles west of St. Helena Comment
  CAS-BOT-BC341558  Lagophylla ramosissima L. R. Abrams 1916-7-2 5760 Napa Near St. Helena Sanitarium Comment
  UCD38947  Lagophylla ramosissima Beecher Crampton 1961-9-19 5978 Napa 3 miles east of Moskowite Corner, State Hwy. 128. Comment
  CAS-BOT-BC341559  Lagophylla ramosissima H. M. Hall 1931-5-26 13092 Napa Twelve miles by road south of Monticello; near Capell Comment
  JEPS63235  Lamium amplexicaule W. L. Jepson 1910-3-28 4019 Napa sw of Calistoga (Rebecca Ranch grade) Comment
  UCD170203  Lamium amplexicaule Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 754 Napa East side of Berryessa-Knoxville Road, just west of the Knoxville Wildlife Area boundary. 347 Comment
  CAS-BOT-BC338263  Lasthenia californica David D. Keck 1931-4-2 1007 Napa Foot of Wooden Valley grade, 4 miles NE. of Napa 50 Comment
  RSA10701  Lasthenia californica C. B. Wolf 1928-5-3 1786 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  POM361516  Lasthenia californica J. T. Howell 1931-4-2 6051 Napa Wooden Valley Grade 4 miles E of Napa. Comment
  UC166656  Lasthenia californica subsp. californica J. P. Tracy 1902-5-21 1574 Napa 3-4 mi e of Angwin's Head of Moore's Creek; Howell Mountain 457 Comment
  UC893761  Lasthenia californica subsp. californica Milo S. Baker 1929-4-1 3580 b Napa near Calistoga Geyser Comment
  UC1363760  Lasthenia conjugens Robert Ornduff 1960-4-26 6116 Napa 0.9 mi n of Soda Canyon Rd.; Silverado Trail Comment
  UC30426  Lasthenia gracilis Willis L. Jepson 1893-5-1 Napa Napa Valley Napa River Basin, Upper Napa Valley Comment
  UCD106231  Lathyrus hirsutus John Thomas Howell 1966-6-2 41552 Napa Dry Creek Road near head of Dry Creek south west of Oakville. Comment
  UCD168534  Lathyrus hirsutus Stephen P. Rae; A. Solomeshch 2007-5-13 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  JEPS107267  Lathyrus latifolius Jake Ruygt 1976-5-14 83 Napa 3.3 miles west of Mt. Veeder on Redwood Rd. 286 Comment
  JEPS107266  Lathyrus torreyi Jake Ruygt 1994-4-9 3346 Napa Las Posados Sate Forest on Moore Creek Trail. 487 Comment
  UCD168571  Lathyrus vestitus Stephen P. Rae; A. Solomeshch 2007-3-19 s.n. Napa Lieff property east of Rutherford, 40 Auberge Road above Rutherford Hill Road, just north of the intersection of Silverado Trail and Highway 128. 165 Comment
  SEINET10576972 Image available Lathyrus vestitus subsp. puberulus George Thurber Thurber 485 Napa Comment
  POM225554  Lathyrus vestitus subsp. vestitus J. T. Howell 1931-4-2 6077 Napa Summit of Wooden Valley Grade, 8 miles east of Napa. Comment
  RSA633298  Lathyrus vestitus subsp. vestitus Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-7 8166 Napa Along Rt. 128 at road marker 24/80 Comment
  JEPS55384  Lathyrus vestitus var. vestitus W. L. Jepson 1924-4-6 10316 Napa Howell Mt. Napa Range 914 Comment
  UC1051670  Lathyrus vestitus var. vestitus Peter Kamb 1950-4-22 1755 Napa w side Wooden Valley (on Calif. Hwy 37) 304 Comment
  UC15376  Lathyrus vestitus var. vestitus Edw. L. Greene 1891-7-10 Napa St. Helena Comment
  UC2029553  Lathyrus vestitus var. vestitus Richard R. Halse 2013-3-27 8752 Napa Along State Highway 128, ca. 8.7 miles west of Winters, just west of Monticello Dam, south end of Lake Berryessa Comment
  UC650499  Lathyrus vestitus var. vestitus Ira L. Wiggins 1928-3-25 2884 Napa 1.5 mi ne Calistoga Comment
  JEPS48893  Lathyrus vestitus var. vestitus Elsa Kraeger 1926-3-28 Napa near Mt. St. Helena Inn Comment
  UC864589  Lathyrus vestitus var. vestitus Alice Eastwood 1915-5-1 6831 Napa Mt. St. Helena Comment
  UC924241  Layia chrysanthemoides H. S. Reed 1939-4-16 225 Napa Napa Valley 60 Comment
  UC472393  Layia chrysanthemoides C. F. Sonne Apr 1887 1467 Napa near Napa Junction Comment
  SEINET7042785  Layia platyglossa A. G. Vestal 1962-4-12 s.n. Napa Butts Canyon Road , 8.3 miles southeast of Route 53. Butts Canyon. Aetna Springs quadrangle UTM Zone 10, 547380mE, 4283517mN. Comment
  JEPS40030  Layia septentrionalis Willis L. Jepson 1893-5-2 Napa grade to Pope Valley from Calistoga; Palisades Comment
  CAS-BOT-BC274335  Leersia oryzoides Peter H. Raven 1952-9-14 5175 Napa Conn Creek e. of Yountville 91 Comment
  JEPS110793  Lepechinia calycina Jake Ruygt 1989-6-3 2362 Napa about 1 mile south of Monticello Dam on Vaca Mtns. 402 Comment
  UCD50232  Lepidium draba S. Nichol 2004-4-1 s.n. Napa east of intersections 121 and 128. Comment
  UCD82341  Lepidium nitidum Robin McMaster 1973-4-20 331 Napa 14 mi S of Pope Valley. Comment
  CAS-BOT-BC12513  Lepidium nitidum John Thomas Howell 1926-3-20 1687 Napa Napa Valley. Calistoga. Comment
  JEPS53708  Lepidium nitidum John Thomas Howell 1926-3-20 1687 Napa Calistoga Comment
  JEPS106790  Lepidium nitidum var. nitidum Jake Ruygt 1978-3-8 231 Napa north of the east end of Westgate Drive, Silverado Country Cl. 121 Comment
  JEPS106843  Lepidium nitidum var. nitidum Jake Ruygt 1979-3-5 439 Napa Trefethen Vineyards, Oak Knoll 32 Comment
  JEPS120396  Lepidium oxycarpum Jake Ruygt 1993-4-18 3208 Napa north of American Canyon Creek, south of Am. Can. sanitation Comment
  CAS-BOT-BC12869  Lepidium ruderale Peter H. Raven 1952-5-26 4031 Napa St. Helena. 76 Comment
  CAS-BOT-BC12925  Lepidium strictum A. A. Heller; H. E. Brown 1902-4-25 5363 Napa Near Napa. Comment
  JEPS126122  Lepidium virginicum Jake Ruygt 2010-6-26 5651 Napa 3400 Atlas Peak Road, entrance road. Capell Valley 7.5' Qua. Comment
  CAS-BOT-BC226536  Leptosiphon acicularis Peter H. Raven 1951-4-8 2766 Napa Yountville to Rutherford 76 Comment
  UCD118592  Leptosiphon androsaceus M. Sidells 1996-4-27 16 Napa next to path on north-facing hill at southwest side of Lake Berryessa, 150 m northeast of Knoxville Road. 250 Comment
  UCD118593  Leptosiphon androsaceus G. L. Stebbins 1983-5-8 C 3115 Napa Chiles Valley area. Comment
  UCD13153  Leptosiphon androsaceus Kathleen Worden 1981-5-24 13 Napa Napa CO. Sage Canyon Rd. 1.2 miles east of intersection with Silverado Trail. Comment
  POM196068  Leptosiphon androsaceus L. F. Robbins 1927-4-15 s.n. Napa [no locality information provided] Comment
  POM146397  Leptosiphon aureus A. A. Heller 1924-4-12 I- 3850 Napa Hot springs at Calistoga Comment
  HSC97648  Leptosiphon bicolor Gail Matson 1977-4-16 24 Napa Along Hwy. 128, 6.4 mi. SW of Monticello Dam 213 Comment
  UCD164494  Leptosiphon ciliatus A. Amezcua 1995-5-26 22 Napa 300 m west of Berryessa- Knoxville Road, approximately 3 km of Spanish Flat Resort. 200 Comment
  JEPS129094  Leptosiphon latisectus Jake Ruygt 2016-4-26 6209 Napa Amy's Grove, Dry Creek Road. Rutherford 7.5' Quad. Comment
  UC2042989  Leptosiphon parviflorus Barbara Ertter with Jake Ruygt 1996-4-25 14597 Napa Kroeber Ranch on NE flank of Mount St. John, W of Rutherford in Napa Valley. Comment
  UCD118990  Leptosiphon parviflorus Carolyn Thomas 1974-4-14 10814 Napa near Yountville, close to Thomas Ranch. 274 Comment
  UCD141588  Leptosiphon parviflorus Ellen Dean 2013-4-27 7706 Napa Las Posadas State Experimental Forest. Ridge to the north of Recreation Flat. 424 Comment
  UCD160654  Leptosiphon parviflorus Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8740 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 251 Comment
  UCD49218  Leptosiphon parviflorus S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 32 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, E side of Decker Canyon about 150 m up Cut-Off Rd. from South Decker Canyon Rd. 182 Comment
  UCSC009028  Leptosiphon parviflorus Dylan M. Neubauer 2015-4-24 130 Napa (NCoRI) Dirt road abutting drainage flowing S/N on S side Chiles-Pope Valley Road 301 Comment
  CAS-BOT-BC324166  Lessingia hololeuca John Thomas Howell 1927-4-15 2323 Napa Near Callistoga 213 Comment
  CAS-BOT-BC324168  Lessingia hololeuca Kate E. Phelps 1932-9-1 s.n. Napa Myrtledale Hot Springs near Callistoga Comment
  CAS-BOT-BC324169  Lessingia hololeuca John Thomas Howell 1926-10-3 2210 Napa 2 miles north of Calistoga, Napa Valley Comment
  JEPS106628  Lessingia ramulosa Jake Ruygt 1979-6-9 690 Napa 21.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 487 Comment
  UC1287463  Lessingia ramulosa Willard Spence 1962-7-20 719 Napa 2 mi nw Pope Valley (on the road to Aetna Springs) Comment
  UC1198370  Lewisia rediviva Joseph P. Tracy 1902-5-21 1592 Napa 3-4 mi e Angwin's (hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, Moore's Creek 335 Comment
  UCD161347  Lilaeopsis masonii Jake Ruygt 1986-5-17 1773 Napa East bank of Napa River at historic site of Suscol. (Coordinates estimated by label maker at UC Davis). 0 Comment
  JEPS122716  Lilium pardalinum Jake Ruygt 1984-6-23 1569 Napa St. Helena Creek near Livermore Road. Quad: Detert Reservoir. Comment
  CAS-BOT-BC132957  Lilium rubescens Mr. Merle Ackley; Mrs. Merle Ackley 1957-6-14 s.n. Napa Howell Mt. Comment
  UCD82054  Limnanthes douglasii Robin McMaster 1972-4-25 80 Napa Pope Valley. Comment
  HSC45342  Limnanthes douglasii R. York 1978-4-8 117 Napa Pope Valley, Lake Springs Ranch 305 Comment
  JEPS19628  Limnanthes douglasii W. L. Jepson 1936-4-5 17412 Napa about 2 mi s Monticello; Berryessa Valley Comment
  UC971871  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-3-27 1138 Napa about 5 mi s Monticello (along Monticello-Napa road) Comment
  RSA739654  Limnanthes douglasii subsp. nivea John Dittes 2003-4-5 2003 -12 Napa Inner N Coast Range, Napa Valley, 1.6 air miles N by NW of Calistoga City Hall, 0.9 air mile NW of confluence of Napa River and Garnett Creek, in the vicinity of the intersection of Myrtledale Raod and Tubbs Lane. 122 Comment
  UC1593390  Limnanthes douglasii subsp. nivea R. Ornduff 1966-4-21 6880 Napa 4.4 mi se Calistoga (pasture along Hwy 29, in ephemeral stream) Comment
  SEINET5556952  Limnanthes douglasii var. nivea H. S. Gentry 1962-1 19736 Napa 3 mi. south of Calistoga. 91 Comment
  SEINET5556954  Limnanthes douglasii var. nivea H. S. Gentry 1962-1 19703 Napa 3 mi. north of Calistoga, along Rt. 128. 60 Comment
  UCD116445  Limnanthes douglasii var. nivea H. Popenoe 1949-4-17 8 Napa 17 miles from Winters, Putah Canyon Road, at entrance to Monticello Valley. Comment
  JEPS110959  Linanthus androsaceus Jake Ruygt 1978-5-16 317 Napa 8.1 miles north of Redwood Rd. on Mt. Veeder Rd. 237 Comment
  JEPS110960  Linanthus androsaceus Jake Ruygt 1979-4-29 559 Napa .4 miles west of HWY 29 on Kortum Canyon Rd. 182 Comment
  SEINET7072777  Linanthus androsaceus A. G. Vestal 1963-5-13 s.n. Napa Conn Valley Road, Conn Valley. UTM Zone 10, 551383mE, 4262262mN. Coordinate datum: NAD 27. Comment
  UCD15044  Linanthus bicolor Jonathan M. Irvine 1977-4-16 104 Napa California, Napa Co.; along Highway 128, 6.4 miles SSW of Monticello Dam; Comment
  UCD15045  Linanthus bicolor Gail Matson 1977-4-16 24 Napa California, Napa Co.; along Highway 128, 6.4 miles SW of Monticello Dam; Comment
  JEPS110979  Linanthus ciliatus Jake Ruygt 1983-6-12 1490 Napa Mt. St. Helena 597 Comment
  UC648302  Linanthus ciliatus M. S. Jussel 1937-5-23 Napa Palisades Comment
  UC963942  Linanthus dichotomus R. F. Hoover 1941-4-26 4916 Napa between Samuel Springs and Walter Springs; Pope Creek Comment
  JEPS111461 Image available Linanthus dichotomus subsp. meridianus Sally Chess 2003-4-22 112 Napa Robert Louis Stevenson State Park. Comment
  SEINET205184  Linanthus dichotomus subsp. meridianus Carl A. Huether Jr. 1965-3-4 50 Napa in serpentine between road and creek; ca. .25 mile east of mail boxes on road to M & M Ranch. Middle snell valley. Comment
  CAS-BOT-BC123058  Linanthus jepsonii Carol Goodwillie 1995-5-11 1 Napa Wantrup Wildlife Sanctuary, on primary road 1.3 km W of Hardin Road, 60 meters N of vernal pool 256 Comment
  RSA0004837  Linanthus jepsonii C. Goodwillie 1995-5-11 001 Napa Wantrup Wildlife Sanctuary, on primary road 1.3 km west of Hardin Road, and 60 meters north of vernal pool on north-facing. 256 Comment
  UC908780  Linanthus parviflorus Herbert L. Mason 1933-4-30 7221 Napa n of Aetna Springs (near Napa-Lake County line) Comment
  JEPS82745  Linaria maroccana L. R. Heckard and J. C. Hickman 1984-4-16 6147 Napa 1 mi below junction with White Cottage Road (above Deer Park on road to Angwin) Comment
  CAS-BOT-BC36064  Lithocarpus densiflorus var. densiflorus Belle Richardson Jackson 1924-8-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC430625  Lithophragma affine L. R. Abrams 1928-5-3 12245 Napa Summit Mt. St. Helena Grade Comment
  JEPS47500  Lithophragma affine Willis L. Jepson 1893-4-24 13467 Napa hills e St. Helena (Napa River Basin); , e of St. Helena Comment
  CHSC20610  Lithophragma heterophyllum Carol C. Getzinger 1964-3-24 9 Napa Mt. Veeder Road, 2 miles south from junction with Dry Creek Road, near Pickle Can Creek. 548 Comment
  JEPS110627  Lithophragma heterophyllum Jake Ruygt 1977-4-7 177 Napa 2.8 miles NW of Mt. Veeder Rd. on Redwood Rd. 243 Comment
  UC11904  Lithophragma heterophyllum Willis L. Jepson 1893-5-1 Napa Knight's Valley road from Calistoga; Napa River Basin Comment
  UCSB2569  Lithophragma heterophyllum Kamb, Peter; Chisaki, Francia 1950-4-22 Napa West side of Wooden Valley on California Highway #37 304 Comment
  UCD18102  Logfia filaginoides Ellen Dean; with PLB 102 class 2000-4-29 758 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  JEPS84596  Logfia filaginoides John W. Willoughby 1977-4-20 2141 Napa w side of range Vaca Mountains (latitude approximately that of Mount Vaca) 457 Comment
  CAS-BOT-BC342438  Logfia gallica John H. Thomas 1955-5-21 5138 Napa Sarco Creek drainage, near State Highway No. 37, about 6 miles from Napa 274 Comment
  CAS-BOT-BC342439  Logfia gallica John H. Thomas 1955-5-21 5180 F Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena 274 Comment
  CAS-BOT-BC342436  Logfia gallica Peter H. Raven 1950-4-15 1724 Napa Monticello Road, Napa Valley 24 Comment
  UCD66635  Lolium temulentum A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3544 Napa 1 mile south of Napa-Lake County line. Rt. 29. North slope of Mt. St. Helena. Comment
  UCD66656  Lolium temulentum Collector Unknown 1941-6-1 Napa Mt. St. Helena. Comment
  UCR23398  Lomatium John C. Roos 1939-3-18 302 Napa North Coast Range, Snell Valley, near Angwin 183 Comment
  JEPS104571  Lomatium californicum Jake Ruygt 1991-4-20 2634 Napa Mead Ranch, Atlas Peak Rd. 560 Comment
  UCR178676  Lomatium californicum K. Mogel, M. Higley, B. Pekin 2002-5-4 009 Napa Vaca Mtns, Quail Ridge UC Reserve. Northern tip of ridge, N of the junction of West and East roads, c. 1000 ft along the lower road that leads to the power lines, immediatly downslope of road 305 Comment
  UC659028  Lomatium californicum Mildred E. Mathias 1937-5-23 1299 Napa 13 mi. s.e. Napa Co. Line (on Knoxville Rd.) Comment
  UCD150868  Lomatium caruifolium var. caruifolium Robert E. Preston 1988-4-10 586 Napa ca. 0.6 mile ESE of the confluence of Putah and Hunting Creeks. 304 Comment
  UC1123025  Lomatium dasycarpum subsp. dasycarpum B. O. Schreiber 1938-4-24 2503 Napa 1/2 mi NW of Knoxville 609 Comment
  JEPS122753  Lomatium hooveri Jake Ruygt 2004-4-3 4579 Napa Ridge between Foley and Knoxville Creeks. Quad: Knoxville. Comment
  LA202888  Lomatium hooveri Mildred E. Mathias; 1937-5-23 1298 Napa 1.9 mi. SE of Napa-Lake County line on road to Knoxville Comment
  UCD18027  Lomatium hooveri Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 573 b Napa Napa County. McLaughlin Reserve. Along Devil Head Rd. First ridge S of Knoxville -- Berryessa Rd., east side of Devil Head Rd. Along road leading up to air quality station. 545 Comment
  UCD18069  Lomatium hooveri Ellen Dean; with Plant Biology 102 class 2000-4-22 624 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station. 548 Comment
  CHSC108731  Lomatium macrocarpum B. Castro; L. P. Janeway 2002-5-12 1359 Napa Inner North Coast Ranges. Small soggy meadow/springs along Pocock Creek just upstream of the dirt road from Devilhead Road. 505 Comment
  UCD95930  Lomatium macrocarpum Ellen Dean; with Clare Loughran 2011-5-20 7060 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property. 612 Comment
  POM225346  Lomatium marginatum J. T. Howell 1931-4-19 6466 Napa Conn Valley. Comment
  UCD150865  Lomatium marginatum var. marginatum G. Ledyard Stebbins Jr. 1964-5-24 6159 Napa on road to Lake Hennessy and Lake Berryessa, 7 miles south of Pope Valley. 274 Comment
  UC1731433  Lomatium marginatum var. purpureum Dean W. Taylor 1998-6-18 16679 Napa ridge dividing Butts Canyon and Spanish Valley; North Coast Ranges 502 Comment
  UCD161354  Lomatium marginatum var. purpureum Jake Ruygt 1987-5-23 2009 Napa North end of Cedar Roughs. (Coordinates estimated by label maker at UC Davis). 441 Comment
  JEPS17157  Lomatium marginatum var. purpureum W. L. Jepson 1915-4-23 6266 Napa Chiles Creek hills 274 Comment
  UC1076637  Lomatium marginatum var. purpureum Lincoln Constance, Reino Alava, Robert Ornduff 1957-5-5 3548 Napa n. side Mt. St. Helena (St. Helena Creek); , St. Helena Creek 365 Comment
  JEPS104541  Lomatium nudicaule Jake Ruygt 1986-5-7 1751 Napa Skyline Park below Skyline Trail 256 Comment
  JEPS15831  Lomatium repostum W. L. Jepson 1892-3-25 14308 Napa summit Vaca Mts. Comment
  OBI55128  Lomatium repostum Lincoln Constance, J. F. Davidson, W. H. Wagner, R. H. Shan 1946-5-18 3048 Napa Southeast slope of Mount Saint Helena, near the old inn. Comment
  POM298615  Lomatium repostum Lincoln Constance, J. Davidson, W. H. Wagner, R. H. Shan 1946-5-18 s.n. Napa Souteast slope of Mount St. Helena, near the old inn. Comment
  UCD164769  Lomatium repostum Jake Ruygt 2014-5-19 5940 Napa Sutro Ranch, Atlas Peak. 743 Comment
  UC140582  Lomatium utriculatum C. F. Baker 1903-4-20 2621 Napa Mt. St. Helena Comment
  UCD148552  Lomatium utriculatum Jake Ruygt 1997-4-8 3825 Napa Napa County. East end of Taplin Road; Heitz Cellars. 106 Comment
  SEINET5744663 Image available Lomatium utriculatum Carl Luhn 1960-1 30 Napa State Hwy 128, 0.25 mile S of junction with Wragg Canyon Road and ca. 5 miles SW of Monticello Dam.; Monticello Dam Comment
  UC1368793  Lomatium utriculatum David H. French 1968-4-20 2859 Napa about 11 mi NW of Napa (E side of road called Silverado Trail) Comment
  UC796660  Lomatium utriculatum Ira L. Wiggins 1949-4-30 12081 Napa 2 1/2 mi. above Calistoga (along old toll rd. to Middletown) Comment
  RSA17889  Lomatium vaginatum C. B. Wolf 1928-2-25 1482 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  UCD137323  Lonicera hispidula Susan Wagener 1955-5-15 60 Napa lookout spot ca. 1/2 mile southwest of Oakville, on Triniti Road. Comment
  JEPS12849  Lonicera hispidula var. vacillans W. L. Jepson 1898-1-4 Napa Howell Mountain Comment
  POM46741  Lonicera hispidula var. vacillans W. L. Jepson 1893-9-21 s.n. Napa Napa River Basin, Wooden Valley Grade. Comment
  UC1536786  Lonicera hispidula var. vacillans G. H. True 1937-6-21 733 Napa near Lokoya Lodge 365 Comment
  CAS-BOT-BC240798  Lonicera interrupta Peter H. Raven 1951-5-20 2859 Napa Oakville to Glen Ellen, Sonoma Co. 274 Comment
  CAS-BOT-BC240799  Lonicera interrupta John H. Thomas 1958-4-19 7126 Napa About 2 miles SW of Oakville 152 Comment
  CAS-BOT-BC240800  Lonicera interrupta Milo S. Baker 1926-5-1 224 b-Son ser. Napa Mt St Helena - 2 mi S.E. of Inn Comment
  RSA3633  Lotus humistratus I. L. Wiggins 1932-3-12 5764 Napa Hillside between Calistoga and Franz Valley. Comment
  RSA617140  Lotus micranthus A. C. Sanders 1996-6-1 18193 Napa Southeast edge of town at Skyline Park, east end of Imola Road East. 91 Comment
  JEPS107209  Lotus pinnatus Jake Ruygt 1999-5-17 4162 Napa Wild Horse Valley Ranch, near Leoma Lakes 411 Comment
  RSA735364  Lupinus Keith E. Hoffmaster 1946-3-23 1093 Napa Napa range, along Napa-Monticello road Comment
  RSA735365  Lupinus Keith E. Hoffmaster 1946-3-23 1094 Napa Napa range, along Napa-Monticello road Comment
  CAS-BOT-BC198367  Lupinus albifrons C. B. Wolf 1928-2-25 1490 Napa On Mt. St. Helena Grade, 2 miles below Hawkins Mt. Camp Comment
  UCD48954  Lupinus albifrons Lynn Wheeler; Mark Bibbo, Anne Koehmstedt, and Thomas Liebmann 2001-4-28 21 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along road to research station. 402 Comment
  CAS-BOT-BC196279  Lupinus albifrons var. eminens John Thomas Howell 1926-3-20 1695 Napa Old toll road about 1 1/2 miles from highway; se. of Mt. St. Helena Comment
  JEPS107233  Lupinus bicolor Jake Ruygt 1983-4-13 1695 Napa Pope Canyon Rd. just east of vernal marsh 188 Comment
  UCD48964  Lupinus bicolor M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 1 Napa Quail Ridge UC Reserve, northern top of ridge, alongside lower road leading to power lines, just N of intersection with East and West roads. 335 Comment
  UC865161  Lupinus formosus Lewis S. Rose 1935-9-12 35651 Napa 2 mi nw Napa; nw of Napa 60 Comment
  POM10765  Lupinus latifolius subsp. latifolius C. F. Baker 1903-4-20 2623 Napa Mt. St. Helena. Comment
  RSA161243  Lupinus latifolius subsp. latifolius Peter H. Raven 1957-5-5 10781 Napa Hills at western edge of Calistoga. 183 Comment
  JEPS107223  Lupinus luteolus Jake Ruygt 1987-6-27 2057 Napa Berryessa-Knoxville Rd. near Lake Co. line, Morgan Valley 627 Comment
  JEPS118637  Lupinus microcarpus subsp. microcarpus B. Castro and L. P. Janeway 2002-5-12 1371 Napa Inner North Coast Ranges. Ca 0.8 mi NW of Cedar Valley, at crossing of Cedar Creek, along the road from Devilhead Road. Knoxville 7.5' quad. Comment
  RSA659035  Lupinus microcarpus var. densiflorus R. Riggins 1982-5-22 1419 Napa Ca 1218 E, 7.4 mi E jct. Hwy. 29 in Rutherford, 3.6 mi W jct. Lower Chiles Valley Rd. Comment
  UCD160781  Lupinus microcarpus var. densiflorus Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8661 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 552 Comment
  CHSC108727  Lupinus microcarpus var. microcarpus B. Castro; L. P. Janeway 2002-5-12 1371 Napa Inner North Coast Ranges. CA 0.8 mi NW of Cedar Valley, at crossing of Cedar Creek, along the road from Devilhead Road. 536 Comment
  UC126975  Lupinus nanus Willis L. Jepson 1893-5-2 Napa near Palisades (ne<?> Pope Valley grade); Napa River Basin, ne<?> Pope Valley grade Comment
  JEPS65366  Lupinus nanus W. L. Jepson 1900-3-10 536 Napa Howell Mt.; Howell Mt., Crystal Springs Comment
  JEPS85043  Lupinus nanus Larry Heckard, Mary Ashton 1969-5-3 2191 Napa 7 mi ne of Napa (Mead Ranch, off Atlas Peak Road); Mead Ranch 457 Comment
  UCD161618  Lupinus nanus Jake Ruygt 2004-4-17 4586 Napa Big Ranch Road about 1/4 mile south of El Centro Avenue, Napa. 16 Comment
  POM10655  Lupinus nanus subsp. latifolius C. F. Baker 1903-4-19 1990 Napa Calistoga. Comment
  UC725353  Lupinus sericatus A. A. Heller 1940-5-6 15586 Napa just below the crossing of State Highway #29 e side Mt. St. Helena; e side of Mt. St. Helena Comment
  UCD47980  Lupinus succulentus S. Cruz; K. Carpenter, D. Goldberg, M. Ochoa, K. Watts 2000-4-28 17 Napa Napa County, McLaughlin Reserve, north of Knoxville-Berryessa Rd., just south of old town of Knoxville, east of Old Knoxville Rd. 426 Comment
  CAS-BOT-BC441245  Luzula macrantha Peter H. Raven 1953-3-29 5220 Napa Hills east of Imola 121 Comment
  CHSC103006  Lythrum hyssopifolia Lowell Ahart 2009-10-12 16442 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  UCD19326  Lythrum hyssopifolia M. A. Bibbo; E. Dean 2001-7-6 18 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West rd, where W and E roads meet near point of Quail Ridge. S of powerline on N edge of water hole downslope of the road. 320 Comment
  UCD103046  Lythrum hyssopifolia Mr. Parrish 1941-6-25 s.n. Napa Napa County. Comment
  UCD73449  Madia elegans Ayzik Solomeshch 2007-8-7 s. n. Napa Oakville Ranch, ca. 6 miles northwest from Yountville. On Hwy. 29 take 'Oakville grade' road, ca. 3 miles north from Yountville. 205 Comment
  CAS-BOT-BC343836  Madia elegans Walter Knight; Irja Knight 1963-10-20 362 Napa Beringer Ranch, Spring Mt. Rd. Town of St. Helena Comment
  JEPS40349  Madia elegans W. L. Jepson 1892-8-1 Napa Napa Valley Comment
  UC1544800  Madia elegans Almut G. Jones 1986-8-23 7253 Napa near Calistoga Comment
  UC523529  Madia elegans David D. Keck 1933-11-10 2714 Napa weed field by High School; Calistoga Comment
  CAS-BOT-BC344444  Madia exigua Peter H. Raven 1950-7-20 2378 Napa Howell Mtn., on nne side road to Pope Valley Comment
  CAS-BOT-BC344447  Madia exigua David D. Keck 1933-5-29 2357 Napa Pope Creek bridge south of Walters Springs Comment
  JEPS129102  Madia exigua Jake Ruygt 2016-5-3 6225 Napa Canyon south of Oil Well Road; E of Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  POM263490  Madia exigua J. C. Roos 1939-5-13 267 Napa Angwin, Howell Mt. Comment
  CAS-BOT-BC343200  Madia gracilis David D. Keck 1933-5-29 2343 Napa Pope Creek Bridge south of Walters Springs Comment
  CAS-BOT-BC343201  Madia gracilis David D. Keck 1933-5-29 2343 Napa Pope Creek Bridge south of Walters Springs Comment
  UCD18101  Madia gracilis Ellen Dean; with PLB 102 class 2000-4-29 757 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  UCD18139  Madia gracilis Jean Shepard; with PLB 102 class 2000-4-29 189 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  UCD48589  Madia gracilis S. Murphy; K. Keck and K. Dyer 2002-5-5 2 Napa Quail Ridge UC Reserve, northern tip of ridge, 7 m from E edge of stock pond. 328 Comment
  UCD63149  Madia gracilis Jake Ruygt 2003-4-14 4498 Napa Lower hills of Blue Ridge east of Zim-Zim Creek. 365 Comment
  CAS-BOT-BC343195  Madia gracilis John Thomas Howell 1933-6-4 11385 Napa Hills east of Napa Comment
  POM315932  Madia gracilis Patricia Wilder 1965-6-9 3601 Napa Franz Valley School Road, ca. 1.1 mile N of road to Petrified Forest 183 Comment
  CDA11134  Madia nutans G. F. Hrusa, G. L. Stebbins, H. Townsend 1994-4-25 11824 Napa North Coast Biodiversity Arena; Mt. George. Comment
  POM125421  Madia nutans Alice Eastwood 1923-5-9 s.n. Napa Mount St. Helena Comment
  POM298345  Madia nutans Jens Clausen 1935-5-23 1072 Napa Howell Mountain, near sumit, 6.5 miles NE of St. Helena Comment
  RSA170280A  Madia nutans Joseph P. Tracy 1950-5-23 18663 Napa La Jota Plateau, on hills at head of Moore's Creek, 5 miles east of Angwin's, Howell Mountain. 518 Comment
  RSA195340  Madia nutans Gilbert Muth 1967-5-19 696 Napa Milliken Dam. 335 Comment
  CAS-BOT-BC345050  Madia sativa David D. Keck 1933-11-10 2718 Napa Rutherford, just S. of town Comment
  CAS-BOT-BC345051  Madia sativa David D. Keck 1933-11-10 2717 Napa Calistoga Comment
  UCD83743  Madia sativa Ellen Dean; Yuan-chun Han, Surene Foutouhi 2010-5-7 5992 Napa Along Wooden Valley Road; E side of the road; Lamb Vineyard property. 176 Comment
  UCD20030  Maianthemum stellatum C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1208 Napa Junction of Glass Mountain Road and Silverado Trail. Comment
  UCD167282  Malacothamnus fremontii Jake Ruygt 1998-6-24 4059 Napa Goslin Canyon, south of hunting camp. 192 Comment
  UCD167283  Malacothamnus fremontii Jake Ruygt 2003-6-21 4552 Napa West of Berryessa Knoxville Road near mouth of Foley Creek. 329 Comment
  RSA434859  Malacothamnus helleri Peter H. Raven 1965-5-15 20205 Napa On divide between Zim Zim Creek and Nevada Creek, 5 miles SSE of Knoxville 396 Comment
  UCR196235  Malacothrix clevelandii Jake Ruygt 2005-6-1 4885 Napa Knoville Wildlife Area, Blue Ridge, 1 mi north of Mays Flat 630 Comment
  JEPS36797  Malacothrix clevelandii W. L. Jepson 1938-5-25 18865 Napa Bell Canyon, Napa Range, Howell Mt. Comment
  CAS-BOT-BC347517  Malacothrix floccifera Peter H. Raven 1951-5-6 2824 Napa Burn below Conn Dam 274 Comment
  UC33286  Malacothrix floccifera Edw. L. Greene July, 1891 Napa St. Helena Comment
  CAS-BOT-BC347514  Malacothrix floccifera John Thomas Howell 1931-4-19 6461 Napa Conn Valley, Napa Range Comment
  UCD69017  Malacothrix floccifera P. Rodriguez-Rojo 1997-4-20 Napa Lake Berryessa. Capell Creek. On serpentine rocks. UTM: 10SEN6659 155 Comment
  UCD116603  Malva nicaeensis David Lawfer 1952-4-28 153 Napa Napa. Comment
  POM339533  Marah fabacea F. R. Fosberg 1967-4-1 48412 Napa Hills just south of Lake Berryessa Comment
  UC28925  Marah fabacea Willis L. Jepson 1893-4-27 Napa Napa City Napa River Basin Comment
  UCD19945  Marah watsonii E. A. Dean; Virginia Boucher 2002-2-28 901 Napa Quail Ridge Reserve. Along East Rd., 0.65 airline miles SE of stock pond at tip of ridge, where East and West Roads converge. 396 Comment
  UCR242400  Marah watsonii Ellen Dean, Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 606 Napa North Coast Range, McLaughlin Reserve, c. 0.87 miles as the crow flies NNW of site of old town of Knoxville, east side of road to Clover Valley, along the old road that climbs up ridge on east side 537 Comment
  JEPS120339  Marsilea vestita subsp. vestita Jake Ruygt 1992-6-13 3037 Napa Bear Valley, pond at the south end. Detert Reservoir 7.5' Quad. Comment
  UCD47913  Matricaria discoidea K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, K. Watts 2000-4-28 31 Napa Napa County, McLaughlin Reserve, north of Knoxville-Berryessa Rd., just south of old town of Knoxville, middle of Old Knoxville Rd. 426 Comment
  UCD48564  Matricaria discoidea Kook-Hyun Chung; J. Deusterman, C. Ineich, M. Hauselt 2001-4-28 16 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along West Rd., N of jct with South Decker Canyon Rd. 176 Comment
  CAS-BOT-BC348060  Matricaria discoidea Peter H. Raven 1957-5-5 10787 Napa Calistoga 91 Comment
  POM262794  Medicago arabica J. C. Roos 1939-5-2 292 Napa Angwin Comment
  UCD35297  Medicago praecox Beecher Crampton 1955-4-7 2424 Napa Napa County; 7.8 miles north of Monticello. Comment
  CAS-BOT-BC269416  Melica californica California Academy of Sciences 1870-5-1 s.n. Napa Oakville Comment
  CAS-BOT-BC269418  Melica californica John Thomas Howell 1931-4-3 6123 Napa Pope Creek Canyon, 8 miles from Monticello, Napa Range Comment
  UCD159944  Melica californica Alice Warrick 2008-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  UCD160734  Melica californica Ellen Dean 2015-5-23 8786 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 219 Comment
  POM262893  Melica californica var. nevadensis J. C. Roos 1939-4-15 319 Napa Pope Valley. Comment
  OBI21986  Melica geyeri Peter H. Raven 1957-5-5 10757 Napa Hills at the W edge of Calistoga Comment
  RSA0078573  Melica geyeri L. R. Abrams 1928-5-3 12254 Napa Summit St. Helena Grade. Comment
  HSC10357  Melica imperfecta J. V. Lenz 1947-4-19 Napa Chiles Valley Comment
  UCD73403  Melica imperfecta Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  CAS-BOT-BC264224  Melica torreyana John Thomas Howell 1939-4-30 14632 Napa Walter Springs Comment
  SACT001542  Melica torreyana John Willoughby 1977-4-20 Napa blue oak woodland/chaparral ecotone; in shade of Quercus wislizenii 365.76 Comment
  JEPS65546  Melilotus albus W. L. Jepson 1894-11-5 13602 Napa river bed above St. Helena Comment
  CHSC102536  Melilotus indicus Lowell Ahart 2009-10-27 16487 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  UCD108089  Melilotus indicus Helen K. Sharsmith 1953-6-15 4193 Napa Adjacent to Soda Creek, on road to Rutherford 2 miles west of junction with Monticello road. 213 Comment
  JEPS112580  Melissa officinalis Jake Ruygt 1979-7-12 749 Napa 1.4 miles SW of HWY 128 on Monticello Rd 243 Comment
  JEPS42846  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1922-10-22 9830 Napa St. Helena, White Sulphur Creek Comment
  UC19605  Mentzelia laevicaulis var. laevicaulis Brewer Aug 1862 1315 Napa Rag [Wragg] Canyon near Putah Creek Comment
  CAS-BOT-BC428855  Micranthes californica Mrs. Clara Hunt 1921-4-1 s.n. Napa St. Helena Comment
  SEINET7072775  Micropus amphibolus A. G. Vestal 1963-5-12 s.n. Napa Howell Mountain Road on the North Slope. UTM Zone 10, 548879mE, 4271447mN. Coordinate datum: NAD 27.) Comment
  SFV4057  Micropus californicus J. M. Tucker 1965-5-15 3829 Napa Along headwaters of Zim Zim Creek, about 0.5 miles west of Devilhead Road and about 3 miles south southwest of Knoxville. Comment
  UCD159957  Micropus californicus Alice Warrick 2007-4-20 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Along roadside on the way to burn site. 243 Comment
  RSA736572  Micropus californicus Keith E. Hoffmaster 1946-3-29 1047 Napa Putah Canyon, near Napa county line. Comment
  CAS-BOT-BC348543  Micropus californicus var. californicus R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6656 Napa 5 mi. E. of St. Helena on road to Pope Valley 304 Comment
  UCD18059  Micropus californicus var. californicus Ellen Dean; with Plant Biology 102 class 2000-4-22 614 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station. 548 Comment
  CAS-BOT-BC348680  Microseris acuminata Peter H. Raven 1953-4-2 5237 Napa Hills e. of Imola 121 Comment
  UCD121175  Microseris douglasii subsp. douglasii Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7355 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. NE Part of property. Recreation Flat area. Valley. 392 Comment
  JEPS106890  Microseris douglasii subsp. tenella Jake Ruygt 1989-5-2 2300 Napa Airport Rd., north side about .2 miles west of HWY 29 12 Comment
  JEPS122679  Microseris laciniata subsp. laciniata Jake Ruygt 1982-6-1 1302 Napa 0.3 miles north of Chimney Rock Golf Course on Silverado Trail. Quad: Yountville. Comment
  JEPS104968  Mimulus angustatus Dean W. Taylor 1998-6-23 16696 Napa headwaters Swartz Canyon, South flanks Twin Peaks, (ca. 5 air mi W Aetna Springs) 716 Comment
  JEPS110573  Mimulus angustatus Jake Ruygt 1990-5-5 2527 Napa south of Leoma Lakes; Wild Horse Valley Ranch 429 Comment
  JEPS110750  Mimulus angustatus Jake Ruygt 1979-5-19 607 Napa Giles Meade Ranch, Atlas Peak Rd. 487 Comment
  JEPS4734  Mimulus angustatus E. V. Ferguson 1920-5-15 351 Napa Howell Mountain Comment
  UC26857  Mimulus angustatus Willis L. Jepson 1893-5-8 Napa Angwin's Meadow Napa River Basin, Howell Mt. Comment
  UCD159948  Mimulus aurantiacus Alice Warrick 2008-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  UCD169888  Mimulus aurantiacus Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 727 Napa Knoxville Wildlife Area. 311 Comment
  RSA60354  Mimulus aurantiacus var. aurantiacus G. R. Campbell 1948-6-18 657 Napa 10 miles south of Montecello Comment
  UC796465  Mimulus aurantiacus var. aurantiacus Ira L. Wiggins 1949-4-30 12077 Napa about 1.5 mi from Calistoga (along old toll road between Calistoga and Middletown) Comment
  NY90685  Mimulus bakeri C. F. Baker 1903-4-20 2608 Napa Mt. St. Helena. Comment
  UCD122512  Mimulus cardinalis D. H. Hartmann 1941-8-19 s.n. Napa Putah Canyon. Comment
  JEPS110583  Mimulus congdonii Jake Ruygt 1990-4-1 2449 Napa south of Leoma Lakes, Wild Horse Valley Ranch. 429 Comment
  UC125330  Mimulus congdonii unknown Napa Howell Mountain Comment
  UCD18028  Mimulus douglasii Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 568 Napa Napa County. McLaughlin Reserve. Along Devil Head Rd. First ridge S of Knoxville -- Berryessa Rd., east side of Devil Head Rd. Along road leading up to air quality station. 545 Comment
  CDA15441  Mimulus guttatus Rachel Curtis 1995-5-6 14 Napa Approx. 7.0 mi. E of Silverado Trail Rd. Comment
  UCD170682  Mimulus guttatus 2018-4-28 5 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  JEPS9263  Mimulus latidens Willis L. Jepson 1893-4-27 31 m Napa Napa Napa River Basin, Lower Napa Valley Comment
  RSA309393  Mimulus latidens W. L. Jepson 1893-4-27 31 Napa Lower Napa Valley, Napa River Basin. Comment
  UCD169782  Mimulus layneae Daniel Potter; Ninh Khuu, Max Potter, James Shoulders 2015-4-18 790 Napa Knoxville Wildlife Area. Upper Zim Zim Creek drainage. 446 Comment
  UCD63858  Mimulus layneae Daniel Sanchez-Mata 2006-6-23 s.n. Napa Knoxville. Berryessa Knoxville Road. UC MacLaughlin Nature Reserve. Research Hill. 625 Comment
  POM311171  Mimulus layneae Milo S. Baker 1947-7-7 11849 Napa Along wood road leading southerly from Mt. St. Helena Inn ca 1.5 mi. 3000 ft at end of Rd. 915 Comment
  UC147909  Mimulus microphyllus J. P. Tracy 1902-5-21 1584 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mountain 365 Comment
  JEPS11347  Mimulus nasutus Willis L. Jepson 1893-5-1 5 m Napa near Calistoga; Napa River Basin, Upper Napa Valley Comment
  UCD167090  Mimulus nudatus Jake Ruygt 2015-3-7 6030 Napa South of Snell Peak. 305 Comment
  UCR42417  Mimulus nudatus L. F. LaPre 1986-5-6 s.n. Napa Devil Head Road, c. 2 mi south of the Berryesa to Knoxville Road, 1.75 airlines mi south of Knoxville & about 1.75 mi east of the Lake Co. line. 488 Comment
  UC1103332  Mimulus pulsiferae Joseph P. Tracy 1933-4-30 12105 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, La Jota Plateau 518 Comment
  UCD85033  Mimulus pulsiferae Dena Grossenbacher 2009-5-14 992 Napa Along east side of Ink Grade Road about 0.3 miles north of junction with Howell Mountain Road. 557 Comment
  UC1778537  Mimulus tricolor S. E. Schoenig 1998-6-3 98 -18 Napa Vernal pool 15 meters E of Knoxville-Berryessa Rd. , 2 mi. S of Homestake mine site.Lat corrected from 35 426 Comment
  CAS-BOT-BC294747  Minuartia californica R. C. Wenk; E. S. Wenk 2006-4-30 435 Napa Robert Louis Stevenson State Park. Trail going east from Highway 29 parking lot for trail to Mt. St. Helena. 1/2 mile from parking lot on left side of trail Comment
  JEPS22478  Minuartia californica Willis L. Jepson 1893-4-26 Napa La Lomita Napa River Basin Comment
  JEPS22484  Minuartia californica Willis L. Jepson 1893-1 Napa plateau n Mt. George; Napa River Basin Comment
  RSA10696  Minuartia douglasii C. B. Wolf 1928-5-3 1791 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UCD160645  Minuartia douglasii Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8732 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 253 Comment
  CHSC102526  Mollugo verticillata Lowell Ahart 2009-10-12 16445 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters.F 133 Comment
  UCD167260  Mollugo verticillata Jake Ruygt 1991-6-29 2753 Napa 3.2 miles north of Pope Canyon Road on Berryessa Knoxville Road. 121 Comment
  CHSC74679  Monardella douglasii Jane Valerius 1998-6-22 Napa Ca 4 air mi NE of Vallejo and ca 1.5 mi W of Hwy 80, along banks and at top of unnnamed S-trending tributary to American Canyon Creek. 76 Comment
  JEPS110818  Monardella douglasii Jake Ruygt 1985-6-3 1609 Napa American Canyon, .4 miles east of Flosden Rd. 161 Comment
  UCD149659  Monardella villosa subsp. villosa Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  POM126651  Monardella viridis Katherine Brandegee s.n. Napa Angwin s Comment
  JEPS101598  Monardella viridis subsp. viridis Dean W. Taylor 1999-7-20 17289 Napa Crystal Lake (large vernal lake west of Highway 128 and Capell Creek) 350 Comment
  JEPS110825  Monardella viridis subsp. viridis Jake Ruygt 1982-7-18 1368 Napa Cedar Roughs near Guilliam Springs 298 Comment
  JEPS112615  Montia fontana Jake Ruygt 1993-4-3 3182 Napa Littel Bear Valley 670 Comment
  JEPS5865  Montia fontana W. L. Jepson 1940-2-29 19499 Napa 4 mi se of Yountville (Napa Valley, Vicinity of San Francisco Bay); Napa Valley Comment
  JEPS112612  Montia parviflora Jake Ruygt 1991-5-11 2653 b Napa Howell Mountain Road, S of Ink Grade 551 Comment
  CAS-BOT-BC515122  Muilla maritima David D. Keck 1931-4-4 1096 Napa Geyers just NW of Calistoga, northwestern Napa County Comment
  POM182667  Muilla maritima David D. Keck 1931-4-4 1096 Napa Geysers just NW of Calistoga, NW Napa County. 34 Comment
  CDA19129  Myriophyllum spicatum T. Allen 2001-7-12 PDR 1103267 Napa In Lake Berryessa, close to 4290 Knoxville Rd., Napa. 0 Comment
  JEPS75637  Nassella cernua W. L. Jepson 1936-5-28 17544 Napa Adam-and-Eve Ridge Howell Mt. Comment
  CAS-BOT-BC259964  Nassella lepida Peter H. Raven 1951-6-26 3053 Napa Wooden Valley Grade 304 Comment
  UCD159947  Nassella lepida Alice Warrick 2008-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  CAS-BOT-BC260176  Nassella pulchra Peter H. Raven 1950-4-15 1727 Napa Monticello Road, Napa Valley, near Napa 243 Comment
  CAS-BOT-BC260178  Nassella pulchra H. M. Hall 1921-4-14 11265 Napa Near Napa junction Comment
  CAS-BOT-BC260179  Nassella pulchra L. R. Abrams 1928-5-3 12232 Napa St. Helena Grade Comment
  CAS-BOT-BC60335  Nasturtium officinale E. Ruckert 1960-5-8 145 Napa 6495 Dry Creek Road. Few feet from gate spring, in overflow stream. 365 Comment
  UC657734  Navarretia heterodoxa Milo S. Baker 1941-6-30 10156 Napa n road from Silverado Trail (along highway to Howell Mt.) Comment
  JEPS70335  Navarretia intertexta Willis L. Jepson 1903-9-7 2351 Napa above St. Helena Reservoir (near summit w side of valley, in York Creek Canyon); Napa River Basin, St. Helena, York Creek Canyon Comment
  JEPS112535  Navarretia intertexta subsp. intertexta Jake Ruygt 1996-6-23 3751 Napa Wantrup Wildlife Sanctuary, Hardin Road, Pope Valley. 188 Comment
  JEPS112532  Navarretia intertexta subsp. intertexta Jake Ruygt 1994-6-14 3403 Napa near Butts Canyon, E of intersection with Ink Grade 231 Comment
  UCD167179  Navarretia intertexta subsp. intertexta Jake Ruygt 1982-7-5 1360 Napa 0.3 miles south of Old Bale Mill on east side of Highway 29. 88 Comment
  UC142968  Navarretia jepsonii Mrs. K. Brandegee Jul 26 1910-Jun 1 1911 148 Napa near Aetna Springs Comment
  UC908643  Navarretia jepsonii Mrs. K. Brandegee Jul 26 1910-Jun 1 1911 148 Napa near Aetna Springs Comment
  UCD106388  Navarretia linearifolia subsp. pinnatisecta K. Esau; D. Hartmann 1941-7-17 s.n. Napa Between Middletown and Calistoga. Comment
  HSC2254  Navarretia mellita Katherine Brandegee 1910-7-26 Napa Pope Valley Comment
  UCD167189  Navarretia mellita Jake Ruygt 2010-6-10 5607 x Napa About 1/2 mile north of Mays Flat on top of Blue Ridge. 737 Comment
  JEPS110949  Navarretia pubescens Jake Ruygt 1977-5-1 209 Napa east end of Westgate Dr. 115 Comment
  JEPS112540  Navarretia pubescens Jake Ruygt 1998-6-29 4067 Napa About 4.7 miles north of first bridge on Berryessa-Knox. Rd 441 Comment
  UCD167445  Navarretia pubescens James A. Neilson Jr. 1979-5-25 3973 Napa Manhattan Mine area, 1 mile northwest of Knoxville. (Manhattan Mine is now known as Homestake McLaughlin Mine. Exact location unknown. Coordinates estimated by label maker.) Comment
  SBBG115735  Navarretia pubescens B. Crampton 1953-5-19 1309 Napa ca. 4 mi S of Monticello along Hwy 128 Comment
  UCD48623  Navarretia pubescens Katherine Lahey 1981-5-24 102 Napa Napa Co. 2.2 mi S of junction State Hwy's 128 and 121 on Hwy 128 roadside. 243 Comment
  CDA19939  Navarretia squarrosa R. McLellan, M. Bozzo 2002-7-5 PDR 1220417 Napa North Coast Ranges; Vicinity of Calistoga. 0 Comment
  JEPS70465  Navarretia squarrosa Willis L. Jepson 1903-9-7 2353 Napa w of St. Helena (above St. Helena Reservoir); Napa River Basin, York Creek Comment
  HSC89995  Navarretia viscidula W. L. Jepson 1942-8-4 20731 Napa Adam-and-Eve Ridge, Howell Mtn. Comment
  JEPS70499  Navarretia viscidula W. L. Jepson 1938-9-22 19015 Napa near Sanitarium (in Lyons Valley, in lower slopes of Howell Mt.); Howell Mt., Lyons Valley Comment
  JEPS106580  Nemacladus montanus Jake Ruygt 1995-6-17 3500 Napa SE corner of Butts Canyon Road at Snell Valley Road 225 Comment
  UCD167166  Nemacladus montanus Jake Ruygt 2015-4-20 6072 Napa Fernandes/ Land Trust, Snell Peak area. 327 Comment
  RSA492511  Nemacladus montanus H. L. Mason 1935-5-30 10000 Napa Four miles north of Knoxville Mines. Comment
  SEINET10906140  Nemacladus montanus Hoffman 1952-5-24 HOFFMAN s.n. Napa Sage Canyon Road, 8.3 miles west of the junction of the Monticello, Sage Canyon, and Winters roads Comment
  SEINET3815165 Image available Nemacladus rigidus Herbert L. Mason 1935-5-30 10000 Napa Four miles N of Knoxville Mines Comment
  CAS-BOT-BC219371  Nemophila Saichi Kawahara 1968-4-20 342 Napa Chiles-Pope Valley Road, 2 miles south of Pope Valley 259 Comment
  UCD166681  Nemophila heterophylla Jake Ruygt 2005-3-28 4735 Napa near Knoxville Wildlife Area. 341 Comment
  CDA40365  Nemophila heterophylla T. C. Fuller 1958-5-1 3715 Napa Highway 53, 8 miles north of Calistoga. 0 Comment
  UC473498  Nemophila heterophylla Belle Richardson Jackson 1930-6-8 Napa near Toll House n side Mt. St. Helena; n side Mt. St. Helena, near Toll House Comment
  SFV8490  Nemophila menziesii S. Randall 1974-4-13 13 Napa 1 air mile southwest of Pope Valley, just west of Chiles-Pope Valley Road. 207 Comment
  UCD149685  Nemophila menziesii Stephen P. Rae; Ayzik Solomeshch 2006-4-25 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD23407  Nemophila menziesii Karin Staaf 1977-4-16 7 Napa 6.4 miles SW of Monticello Dam, in a small shallow canyon on south side of Highway 128. Plants 3 inches tall, herbaceous. Flowers white/blue. Growth upright to low and creeping. Growing in open, sunny, grassy meadow. Soil clay like. Comment
  UCD23408  Nemophila menziesii Marti Franco 1977-4-16 183 Napa Herbaceous annuals, flowers blue and white. Foothill woodland, east facing slope, among grasses, full sun. East Bull Canyon, off of State Highway 128, 6.4 miles southwest of Monticello Dam. Comment
  UCD159790  Nemophila menziesii var. atomaria James A. Neilson Jr. 1975-4-13 3135 Napa Soda Canyon Road, near outlet of canyon. 60 Comment
  UCD120239  Nemophila menziesii var. atomaria Charles B. Heiser Jr. 1947-2-18 1880 Napa 14 miles north of Napa. Comment
  JEPS110840  Nemophila parviflora var. parviflora Jake Ruygt 1980-3-30 822 Napa Van Ness Canyon 609 Comment
  POM65370  Nemophila parviflora var. parviflora H. P. Chandler 1907-5-14 7569 Napa White Sulphur Springs. 150 Comment
  JEPS110869  Nemophila pedunculata Jake Ruygt 1993-4-3 3183 Napa Little Bear Valley 673 Comment
  JEPS110870  Nemophila pedunculata Jake Ruygt 1992-3-28 2868 Napa Snell Valley just west of Stagecoach Canyon Rd. 188 Comment
  JEPS12230  Nicotiana acuminata var. multiflora H-M. Wheeler 1942-11-2 503 Napa s end Conn Creek Road (at bridge over Conn Creek); Conn Valley, Conn Creek Comment
  SD58155  Nicotiana acuminata var. multiflora Helen-Mar Wheeler 1942-7-17 Napa Conn Valley Comment
  UCD126721  Nicotiana quadrivalvis J. M. Tucker; C. H. Lamoureux 1958-6-8 3403 Napa State Highway 128, 2.7 miles northeast of Rutherford. Comment
  UCD54563  Nuttallanthus texanus K. Walker; PLB 102 2006-5-13 5 Napa Quail Ridge Reserve, West Ashley Rd. One-half mile northwest of Laurel Creek. 208 Comment
  UC672086  Odontostomum hartwegii Herbert L. Mason 1934-4-30 8102 Napa w. side near summit Wooden Valley Grade Comment
  JEPS104513  Oenanthe sarmentosa Jake Ruygt 1980-5-9 880 Napa Edgerley Island 0 Comment
  UCD148553  Oenanthe sarmentosa Jake Ruygt 1992-7-22 3110 Napa Napa County, Wooden Valley, south end, on Wild Horse Valley Ranch. 179 Comment
  JEPS43960  Oenothera elata subsp. hirsutissima Willis L. Jepson 1893-9-23 14495 Napa above Calistoga; Napa River Basin, Upper Napa Valley Comment
  CDA42041  Orobanche fasciculata D. Irving Grover 1965-6-1 s.n. Napa Howell Mountain area. 0 Comment
  SEINET8853707 Image available Orobanche fasciculata Bill Wardell 1961-1 27 Napa State Highway 37, 20 miles southwest of Monticello Dam Comment
  CAS-BOT-BC243698  Orobanche valida subsp. howellii Alice A. Ackley 1964-8-1 s.n. Napa Mt. St. Helena Comment
  POM264975  Orthocarpus faucibarbatus I. L. Wiggins 1928-3-25 2877 Napa 1.5 mi NE of Calistoga. Comment
  RSA101987  Orthocarpus lithospermoides Frank W. Johnson 1890-5-27 260 Napa Napa Valley. Comment
  CDA38477  Osmorhiza berteroi T. C. Fuller 1958-5-1 3714 Napa Highway 53, 8 miles north of Calistoga. 0 Comment
  UC658974  Osmorhiza berteroi Mildred E. Mathias 1937-5-23 1282 Napa Mount St. Helena; along Hwy 29 533 Comment
  UC1177078  Oxalis articulata subsp. rubra Peter H. Raven 1951-5-6 2832 Napa St. Helena 91 Comment
  UCD134745  Packera clevelandii Robert E. Preston 1987-6-18 565 Napa 1.4 mile northeast of Big Basin. 414 Comment
  HSC38131  Packera eurycephala Thomas W. Nelson, J. P. Smith, Jane P. Nelson, James Nelson 1976-4-12 2348 Napa Along Morgan Valley Rd. ca 1.5 mi. E of Lake Co. line Comment
  CAS-BOT-BC316942  Packera greenei Beecher Crampton 1957-6-4 4098 Napa above Capell Creek, north end of Capell Valley Comment
  SEINET242421 Image available Panicum capillare Beecher Crampton 1968-10-1 8386 Napa UC Ca. 3 miles N of Moskowite Corner on Hwy. 128. Comment
  UCD89789  Panicum capillare subsp. hillmanii Beecher Crampton 1974-9-19 9089 Napa south of Yountville. Comment
  UCD89576  Panicum dichotomiflorum Beecher Crampton 1958-8-18 s.n. Napa Pope Valley. Comment
  JEPS50025  Parvisedum pumilum W. L. Jepson 1915-4-22 6234 Napa Hills e of St. Helena ([Howell] Road) Comment
  JEPS50028  Parvisedum pumilum H. L. Mason 1931-4-12 Napa Napa State Hospital Comment
  UC205215  Parvisedum pumilum H. P. Chandler 1907-5-5 7557 Napa roadside near Yountville Comment
  UC765007  Parvisedum pumilum R. F. Hoover 1941-4-27 4945 Napa Hill near Yountville Comment
  UCD38860  Paspalum dilatatum Beecher Crampton 1962-10-9 6699 Napa 1.25 miles southwest Angwin, Howell Mtn. Road. Conn Creek. Comment
  UC55915  Pectocarya pusilla J. P. Tracy 1902-5-21 1603 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mountain 457 Comment
  UC480620  Pedicularis densiflora Mrs. Linsdale 1929-4-13 Napa Calistoga Comment
  UCD123329  Pedicularis densiflora H. Popenoe 1949-5-1 18 Napa 1 mile from Pacific Union College, beside road to Pope Valley. Comment
  UCD17996  Pedicularis densiflora Ellen Dean; Kate Mawdsley 2001-4-9 682 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along South Decker Canyon Rd., south of jct with Cutoff Rd. 243 Comment
  UCSB19025  Pedicularis densiflora Rankine, Jane 1965-4-13 Napa 3 miles W of Pope Valley on road between Pope Valley and Anqwin Comment
  UC27314  Pedicularis densiflora Willis L. Jepson 1893-4-25 Napa trail to Leaux's Cabin; Napa River Basin Comment
  UC57304  Pellaea andromedifolia J. P. Tracy 1902-5-22 1624 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mt 365 Comment
  JEPS103983  Pellaea mucronata Jake Ruygt 1979-2-22 432 Napa west face of Mt. George 121 Comment
  UCD82598  Pellaea mucronata Ellen Dean; T. Starbuck 2009-5-4 5536 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  UC1301208  Penstemon heterophyllus Helen K. Sharsmith 1962-6-3 5113 Napa near Angwin; San Francisco Bay Region, western slope Mount Howell 487 Comment
  UCD124215  Penstemon heterophyllus M. Ensign 1943-5-28 321 Napa 17 miles from Monticello on road to Lower Lake. Comment
  UCD124217  Penstemon heterophyllus Alan P. Godlewski 1974-5-3 12 Napa south of Lake Berryessa, 150 yards from Highway 128. Comment
  CAS-BOT-BC245720  Penstemon newberryi var. sonomensis John Thomas Howell 1926-10-3 2196 Napa Mt. St. Helena Comment
  CAS-BOT-BC71675  Pentagramma triangularis subsp. triangularis Jean Fottrell 1906-7-1 s.n. Napa unspecified Comment
  HSC103454  Pentagramma triangularis subsp. triangularis Thomas W. Nelson, Jane Nelson 1981-4-14 6401 Napa Along Devil's Head Rd., .5 mi. from junction with Morgan Valley Rd., at junction with road to Hunting Creek 549 Comment
  JEPS104486  Perideridia gairdneri subsp. gairdneri Jake Ruygt 1991-7-24 2799 Napa Leoma Lakes, Wild Horse Valley Ranch 417 Comment
  UCR198039  Perideridia gairdneri subsp. gairdneri Jake Ruygt 1998-8-15 4106 Napa Mead Ranch, Atlas Peak Road 488 Comment
  UCD170281  Perideridia kelloggii Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 821 Napa Knoxville Wildlife Area, north of Nevada Creek. 535 Comment
  UCD149578  Persicaria hydropiperoides Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  CAS-BOT-BC419302  Persicaria punctata Peter H. Raven 1951-6-26 3041 Napa Napa to Wooden Valley Grade 60 Comment
  UCD148794  Petrorhagia dubia Ellen Dean; Diana Hickson 2014-4-29 8102 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  UC914301  Phacelia distans Verne Grant and Alva Grant 1947-4-19 7939 a Napa on Monticello rd 8 mi from Vichy Springs (e slope of mts.); Mayacama Mts. Comment
  JEPS78806  Phacelia egena John W. Willoughby 1976-5-18 1688 Napa w side of ridge near top Vaca Mountains (latitude approx. that of Mt. Vaca) 762 Comment
  UCD170812  Phacelia heterophylla subsp. virgata 2018-4-28 3 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 154 Comment
  JEPS2164  Phacelia imbricata W. L. Jepson 1938-5-18 18797 Napa Howell Mtn. Napa Range Comment
  UC735110  Phacelia imbricata Lincoln Constance, J. F. Davidson, R. H. Shan, and W. H. Wagner 1946-5-18 3047 Napa near Mount St. Helena Inn (se slope of mt.); Mount St. Helena Comment
  RSA10681  Phacelia imbricata subsp. imbricata Carl B. Wolf 1928-5-3 1806 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  RSA170286  Phacelia imbricata subsp. imbricata W. L. Jepson 1938-5-18 18797 Napa Howell Mountain, Napa Range. Comment
  CAS-BOT-BC134012  Phacelia imbricata var. imbricata John H. Thomas 1955-5-21 5153 Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 167 Comment
  UC963880  Phacelia tanacetifolia Milo S. Baker 1936-4-8 8173 Napa about 2 mi n Knoxville (towards Lower Lake) Comment
  UC187259  Phalaris angusta Joseph P. Tracy 1903-5-15 1844 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  CAS-BOT-BC265789  Phalaris aquatica J. H. Thomas 1960-8-29 8841 Napa About 1 mile north of Calistoga along Highway number 53 Comment
  UCD88185  Phalaris aquatica R. Tofsrud 1948-5-1 s.n. Napa Napa. Comment
  UC187260  Phalaris caroliniana Joseph P. Tracy 1903-5-15 1851 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  RSA92823  Phalaris paradoxa P. H. Raven 1952-5-29 4095 Napa Napa River, 1 mile N. Napa. 61 Comment
  SACT001723  Phalaris paradoxa M. Wiesendanger 1927-5-4 Napa Comment
  CAS-BOT-BC250851  Phleum pratense Peter H. Raven 1951-6-26 3048 Napa E. of Napa on Monticello Rd. 60 Comment
  UC917126  Phlox gracilis D. C. Finfrock 1950-4-2 13 Napa 2 mi from St. Helena (on Pope Valley road) Comment
  UCD162120  Phoradendron californicum Dylan O. Burge 2014-3-15 1498 Napa Mount Saint Helena. 740 Comment
  RSA654885  Phoradendron densum G. Fred Hrusa 1993-10-3 11427 Napa 2 miles SW along Knoxville-Devilhead Road from Knoxville-Berryessa Road. 518 Comment
  UCD48243  Phoradendron leucarpum subsp. tomentosum D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-25 s.n. Napa Berryessa-Knoxville Road. UC McLaughlin Nature Reserve. 650 Comment
  UC1198129  Phoradendron villosum Louise Martin 1907-12-20 Napa at head of Moore's Creek Howell Mt. (3 - 4 mi. e. of Angwin's); Northern Coast Ranges, Howell Mt. 365 Comment
  JEPS122937  Phragmites australis Jake Ruygt 1987-10-17 2112 Napa Fagan's Marsh. Quad: Cuttings Wharf. Comment
  SD107789  Phyla nodiflora C. W. Tilforth, John Dourley 1979-7-22 1858 Napa small canyon above stream, 0.4 mi. south of Park Hdqrs, west side of Lake Berryesa 136 Comment
  JEPS44811  Physocarpus capitatus W. L. Jepson 1895-11-26 13847 Napa La Jota Plateau Howell Mt Comment
  SBBG50615  Physocarpus capitatus R. A. Christison 1960-4-24 51 Napa 2 mi below jct of Silverado Rd with Glass Mtn Rd 15 Comment
  RSA602574  Pickeringia montana L. C. Wheeler 1952-8-30 6881 Napa Manganese Ridge: Moore Creek, Howell Mountain. Comment
  UCD161609  Pickeringia montana var. montana Jake Ruygt 1999-7-17 4207 Napa Red Hill, south side of Mt. St. Helena. 731 Comment
  JEPS103973  Pilularia americana Jake Ruygt 1990-4-23 2504 Napa Wild Horse Valley Ranch at vernal pool 472 Comment
  RSA15670  Pinus attenuata C. B. Wolf 1928-2-25 1501 Napa Mt. St. Helena 1 mile beyond summit on road to Middletown. Comment
  SEINET3221128 Image available Pinus attenuata Royal D. Suttkus 1967-6-26 67- 30 -4 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  SEINET3221131 Image available Pinus ponderosa Royal D. Suttkus 1967-6-26 67- 30 -42 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  JEPS48212  Pinus sabiniana W. L. Jepson 1906-12-1 2626 Napa above Sanitarium; St. Helena Comment
  SEINET267025  Pinus sabiniana Royal D. Suttkus 1967-6-26 67- 30 -43 Napa Clearly Reserves 7.2 miles NW of Pope Valley. Comment
  UC400310  Pinus sabiniana W. L. Jepson Dec 1895 Napa Conn Valley St. Helena Comment
  JEPS120443  Piperia transversa Jake Ruygt 1992-5-20 2995 Napa West of Leoma Lakes, Wild Horse Valley Ranch (Beuhler). Comment
  UC1106288  Plagiobothrys bracteatus Peter H. Raven 1950-5-6 2108 Napa on Old Faithful Geyser road near Rt. 29 (2 mi n of Calistoga) Comment
  UCD35288  Plagiobothrys fulvus var. campestris Beecher Crampton 1955-4-7 2436 Napa Napa County; 7.8 miles north of Monticello. Comment
  JEPS106764  Plagiobothrys nothofulvus Jake Ruygt 1996-5-19 3715 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  UCD148840  Plagiobothrys nothofulvus Ellen Dean; Diana Hickson 2014-4-29 8144 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 511 Comment
  UCD39034  Plagiobothrys nothofulvus Beecher Crampton 1962-5-16 6426 Napa 1 mile E of Aetna Springs. Comment
  HSC3767  Plagiobothrys nothofulvus Greg Bos 1963-3-3 24 Napa W shore of Lake Berryesa 152 Comment
  POM182736  Plagiobothrys nothofulvus D. D. Keck 1931-4-2 1049 Napa 4 miles S of Monticello, eastern Napa County. Comment
  UCD15494  Plagiobothrys nothofulvus Kathryn Specht 1984-4-28 8 Napa 2 miles East of Knoxville Road on Coyote Knoll. 121 Comment
  UCD74376  Plagiobothrys nothofulvus Jake Ruygt 1983-3-26 1393 Napa 0.5 mile south of Sage Canyon Rd. on Silverado Trail. 76 Comment
  UC192203  Plagiobothrys stipitatus C. F. Sonne Apr 1887 Napa Napa Junction Comment
  UCR140420  Plagiobothrys stipitatus var. stipitatus Beecher Crampton 1955-4-7 2447 Napa Inner North Coast Ranges, 21.5 miles north of Monticello, 0.5 mile northwest of Knoxville 488 Comment
  JEPS24976  Plagiobothrys strictus J. P. Tracy May 15 1903-May 18 1903 1857 Napa Region about San Francisco Bay, Napa Valley, Calistoga Hot Springs Region about San Francisco Bay, Napa Valley, Calistoga Hot S 91 Comment
  SBBG54670  Plagiobothrys strictus P. H. Raven 1957-5-5 10741 Napa near the hot springs at the airport, Calistoga Comment
  UC1239617  Plagiobothrys tenellus J. P. Tracy 1902-5-20 1562 Napa near Angwin Creek crossing; Howell Mountain 457 Comment
  UCD161344  Plagiobothrys tener Jake Ruygt 1986-4-14 1703 Napa 4.5 miles north of Westgate Drive on Atlas Peak Road. (Coordinates estimated by label maker at UC Davis). 446 Comment
  UCD164837  Plagiobothrys tener var. subglaber Jake Ruygt 2012-4-21 5841 Napa Spanish Valley, southeast. 225 Comment
  UC1746028  Plagiobothrys tener var. tener Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2768 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  UCD167144  Plagiobothrys undulatus Jake Ruygt 2015-5-6 6091 Napa East side of Highway 221, south of Suscol Creek. 30 Comment
  JEPS6451  Plantago erecta W. L. Jepson 1900-3-10 530 Napa St. Helena Comment
  RSA10692  Plantago erecta Carl B. Wolf 1928-5-3 1795 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UC585997  Plantago erecta Joseph P. Tracy 1933-4-30 12086 Napa 5 mi e Angwin's (on hills at head of Moores Creek); Howell Mountain, Moores Creek 365 Comment
  UCD69078  Plantago erecta P. Rodriguez-Rojo 1997-5-31 Napa Lake Berryessa. Capell Creek. Base of barrens, on serpentine soils. UTM: 10SEN6659 155 Comment
  CHSC102283  Plantago major Lowell Ahart 2009-10-27 16490 Napa Below the high water line of Lake Berryessa, about 400 yards east of Eticuera Creek, about 300 yards east of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, on the bottom of an unnamed creek, about 20 miles (air) northwest of Winters. 130 Comment
  UCR12060  Platystemon californicus Coleta A. Lawler 1964-3-24 09 Napa Buhman Avenue, 0.2 mi north of junction with Henry Road 8 Comment
  JEPS6140  Plectritis brachystemon Bacigalupi and Dempster 1954-5-10 4449 Napa 4.2 mi n of Wooden Valley (on Monticello Road); Monticello Road Comment
  UCD49301  Plectritis ciliosa A. Van Houtte; E. Leger and C. Hohn 2001-4-14 9 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam, W side of S. Decker Canyon Rd., along NW rim of stock pond in Decker Canyon, W and upslope of ruined cabins. 152 Comment
  UC999844  Plectritis ciliosa subsp. ciliosa S. C. Dyal, A. Carter, E. Crum, J. Morrison 1938-4-24 635 Napa near Monticello Comment
  RSA298944  Plectritis congesta subsp. nitida R. Kuhn 1912-5-19 s.n. Napa Oakville. Comment
  JEPS4798  Plectritis macrocera Miss R. Kuhn 1912-4-17 Napa Oakville Comment
  JEPS14270  Plectritis macrocera L. T. Dempster 1954-5-25 P 10 B Napa at site of bridge across Putah Creek, near proposed Monticello Dam Putah Creek Comment
  UCD90210  Pleuropogon californicus var. californicus Beecher Crampton 1955-4-4 2392 Napa 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  UC73784  Poa annua J. Burtt Davy April 1902 Napa St. Helena Comment
  UCD91143  Poa howellii R. Tofsrud 1941-6-1 370 Napa near Calistoga. Comment
  UCD36594  Poa napensis Beecher Crampton 1955-5-9 2750 Napa 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  UCD91554  Poa napensis R. Tofsrud 1948-5-1 s.n. Napa Calistoga. Comment
  UCD91555  Poa napensis R. Tofsrud 1948-5-1 s.n. Napa Calistoga. Comment
  JEPS122926  Poa pratensis subsp. pratensis Jake Ruygt 1990-5-6 2531 b Napa Yountville Ecological Reserve, Yountville Cross Road, Napa River. Quad: Yountville. Comment
  CDA10885  Poa secunda G. F. Hrusa, M. Rejmanek 1993-5-15 10980 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD18085  Poa secunda Ellen Dean; with PLB 102 class 2000-4-22 641 Napa McLaughlin Reserve. Just S of the site of the old town of Knoxville on the N side of the Knoxville-Berryessa Rd., W side of the road to Clover Valley. 402 Comment
  JEPS122927  Poa secunda subsp. secunda Jake Ruygt 1991-5-25 2698 Napa Paradise Valley. Quad: Jericho Valley. Comment
  UCD90796  Poa secunda subsp. secunda Beecher Crampton 1956-5-25 3463 Napa Between Wragg Canyon and southeastern Capell Valley. Comment
  UCD90839  Poa secunda subsp. secunda Beecher Crampton 1965-5-13 7333 Napa 11 miles E of Rutherford, State Hwy. 128. Comment
  JEPS110822  Pogogyne douglasii Jake Ruygt 1982-6-13 1320 Napa Pope Canyon Rd. near large vernal marsh 187 Comment
  RSA128671  Pogogyne douglasii Peter H. Raven 1951-5-26 2880 Napa Butts Canyon. 305 Comment
  SDSU22047  Pogogyne douglasii Ellen Dean, Jake Ruygt 2015-5-23 8760 Napa McLaughlin UC Reserve on the N side of Knoxville-Berryessa Road, west of the old town of Knoxville site. 416 Comment
  UC1177075  Pogogyne douglasii Peter H. Raven 1951-5-26 2880 Napa Butts Canyon 304 Comment
  UC1279971  Pogogyne douglasii Peter H. Raven 1957-5-5 10749 Napa near geysers, Calistoga Comment
  UCD166671  Pogogyne serpylloides Jake Ruygt 2004-5-4 4593 Napa Pope Canyon Rd, Dept. of Fish and Wildlife property, west of Samuel Springs site. 164 Comment
  UCD21553  Polygala californica A. Lee; Ellen Dean, Mark Bibbo, Burak Petin 2003-4-26 7 Napa California, Napa County, on Bureau of Land Management land S of McLaughlin Reserve. West of Devil Head Road, S side of Hunting Creek, S of Hunting Creek campground, along trail west of pool at confluence of Sensitive Plant Canyon and Hunting Creek, in forest by stream that crosses trail. 320 Comment
  RSA113968  Polygala californica Peter H. Raven 1957-5-5 10778 Napa Hills at western edge of Calistoga. Comment
  JEPS50531  Polygonum amphibium var. emersum Willis L. Jepson 1894-11-8 Napa Napa City Napa River Basin Comment
  JEPS110850  Polygonum arenastrum Jake Ruygt 1989-7-18 2400 Napa Willis Drive, Napa 15 Comment
  CAS-BOT-BC109156  Polygonum bolanderi David D. Keck 1933-11-10 2721 Napa 1 mile north of Yountville. Comment
  CAS-BOT-BC109158  Polygonum bolanderi T. S. Brandegee 1888-9-1 s.n. Napa Howell Mountain. Comment
  JEPS50584  Polygonum bolanderi Willis L. Jepson Nov 26 1895-Nov 27 1895 14792 Napa Howell Mt. Napa River Basin, La Jota Plateau Comment
  OBI10869  Polygonum bolanderi H. E. McMinn 1922-6-7 194 Napa Mt. Howell Comment
  JEPS112593  Polygonum hydropiperoides Jake Ruygt 1991-7-20 2771 Napa Lake Orville, Friesen's Lakes, Angwin 563 Comment
  JEPS50631  Polygonum lapathifolium Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin Comment
  UC56358  Polygonum punctatum Willis L. Jepson 1894-11-5 Napa near St. Helena; Napa River Basin Comment
  SEINET3873602  Polypodium californicum Daphne K. Christopher, Hannah Stevens; Mark Bibbo 2003-4-13 166 Napa Uc Davis, Stebbins Cold Canyon Reserve. Near main trailhead.; 0 160 Comment
  RSA309338  Polypodium californicum Edward Lee, Annetta Carter 1935-12-1 1672 Napa Sarco Creek, Howell Mountains (road from Napa to Wooden Valley) Comment
  CAS-BOT-BC72056  Polypodium calirhiza John Thomas Howell 1926-3-21 1729 Napa St. Helena Creek near Patten's 609 Comment
  JEPS116559  Polypodium calirhiza Jake Ruygt 2002-3-23 4364 Napa Oakville Grade about 1/4 mile east of top of grade. Rutherford 7.5' Quad. Comment
  CAS-BOT-BC72054  Polypodium calirhiza Peter H. Raven 1953-4-2 5293 Napa Tulucay Creek 243 Comment
  CDA11614  Polypodium calirhiza G. F. Hrusa 1994-1-29 11589 Napa North Coast Biodiversity Arena; Head of Hennessey Lake on S side of Hwy 128. Comment
  UCD83864  Polypodium glycyrrhiza Ellen Dean; Stephen Rae 2010-3-15 5822 Napa along Wooden Valley Road. E side of road. Lamb Vineyard property, along creek that runs through property. 188 Comment
  UCD83865  Polypodium glycyrrhiza Ellen Dean; Stephen Rae 2010-3-15 5823 Napa along Wooden Valley Road. E side of road. Lamb Vineyard property, along creek that runs through property. 188 Comment
  CDA11615  Polystichum dudleyi G. F. Hrusa, G. L. Stebbins 1994-3-11 11613 Napa North Coast Biodiversity Arena; Las Posadas State Forest, immediately E of Fire Station. Comment
  UCD110657  Populus fremontii subsp. fremontii M. Wiesendanger 1926-4-1 1509 Napa location unknown. Comment
  CAS-BOT-BC454038  Potamogeton pusillus subsp. pusillus Elsa Ruckert 1960-5-20 156 Napa 6495 Dry Creek Road, 300 yards southeast of house. 365 Comment
  UCD144220  Prosartes hookeri G. F. Hrusa; G. L. Stebbins 1994-4-8 11708 Napa Las Posadas State Forest. Upper Moore's Creek. 450 Comment
  CAS-BOT-BC508641  Prosartes hookeri Ira L. Wiggins 1949-4-30 12088 Napa On eastern flank of Mount St. Helena 914 Comment
  UC1198769  Prunus emarginata J. P. Tracy 1902-5-18 1530 Napa 3-4 mi e of Angwin's (head of Moore's Creek, Howell Mountain); Howell Mountain, Moore's Creek 518 Comment
  CDA11152  Prunus ilicifolia G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11563 Napa North Coast Biodiversity Arena; N side of Mt. George, 10 m. NE of city of Napa, above Sarco Creek. Comment
  UC12815  Prunus subcordata Willis L. Jepson 1893-4-24 Napa e of St. Helena Town (Napa River Basin, Napa River, Park Hill Bridge); Napa River Basin, Napa River, Park Hill Bridge Comment
  POM139938  Prunus virginiana var. demissa Alice Eastwood 1922-5-5 11295 Napa Mount St. Helena. Comment
  UC12726  Prunus virginiana var. demissa Willis L. Jepson 1894-4-30 Napa Napa River Basin, Rebecca Ranch grade Rebecca Ranch grade; Napa River Basin, Rebecca Ranch grade Comment
  UC608410  Prunus virginiana var. demissa Beryl O. Schreiber 1936-3-5 2205 Napa 0.3 mi WSW of Petrified Forest Comment
  JEPS20433  Pseudognaphalium beneolens W. L. Jepson 1938-10-1 19046 Napa Mt. St. Helena Comment
  CAS-BOT-BC356659  Pseudognaphalium californicum L. R. Abrams 1916-7-2 5757 Napa Near St. Helena Sanitarium Comment
  UCD19309  Pseudognaphalium californicum M. A. Bibbo; E. Dean 2001-7-6 1 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West road, between research station and junction with southern part of Frank's road, ca. 0.4 air miles from research station. E (upslope) side of the road. 365 Comment
  JEPS106963  Pseudognaphalium stramineum Jake Ruygt 1996-3-30 3544 Napa Jameson Vineyards, South Kelly Road. 91 Comment
  UC127187  Pseudognaphalium thermale Harley P. Chandler Sep 7 1906-Sep 14 1906 7108 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD91500  Pseudoroegneria spicata B. Crampton 1961-6-13 s.n. Napa North end of Capell Valley, above Capell Creek along State Hwy. 128. Comment
  CAS-BOT-BC80150  Pseudotsuga menziesii John H. Thomas 1966-3-22 11534 Napa About 5 miles north of Calistoga as measured along highway 29 on the southeast slope of Mt. St. Helena 609 Comment
  CAS-BOT-BC80151  Pseudotsuga menziesii Alice Eastwood 1918-5-1 6853 Napa Mt. St. Helena Comment
  POM21753  Pseudotsuga menziesii D. O. Hunt 1899-2-26 s.n. Napa Glass Mountain, St. Helena. Comment
  UCD161254  Psilocarphus brevissimus var. brevissimus Jake Ruygt 1982-5-12 1238 -a Napa Suscol Plain east of Kaiser Steel. (Coordinates estimated by label maker at UC Davis). 4 Comment
  CAS-BOT-BC361892  Psilocarphus tenellus John H. Thomas 1958-4-19 7117 Napa About 2 miles SW of Oakville 152 Comment
  UC165837  Psilocarphus tenellus J. P. Tracy 1902-5-17 1526 Napa 3 to 4 mi e Angwin's; Howell Mountain, Head of Moores Creek 457 Comment
  UCD48573  Psilocarphus tenellus K. L. Wheeler; M. Bibbo, A. Koehmstedt, T. Liebmann 2001-4-28 10 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam. On West Rd., ca. 0.15 as the crow flies mile (800 ft.) NNW of jct. with S. Decker Canyon Rd. 182 Comment
  JEPS129136  Pteridium aquilinum var. pubescens Jake Ruygt 1979-6-9 679 Napa Spring Mountain Winery (Falconcrest). Saint Helena 7.5' Quad. Comment
  SEINET237202 Image available Puccinellia simplex B. Crampton 1955-3-15 2327 Napa N edge of meadow 2 mi N of Calistoga Comment
  JEPS106406  Pyrola aphylla Jake Ruygt 1991-6-29 2750 Napa .7 mile south of White Cottage Rd. on Howell Mtn Rd. 554 Comment
  JEPS106407  Pyrola aphylla Jake Ruygt 1988-6-4 2217 Napa Mt. St. Helena <.5 mi. from HWY 29 on fire road 707 Comment
  CAS-BOT-BC460819  Pyrola aphylla Elizabeth Wright 1921-6-1 s.n. Napa Calistoga Comment
  JEPS20198  Pyrrocoma racemosa var. racemosa R. F. Hoover 1941-8-24 5579 Napa near Calistoga; Myrtledale Hot Springs Comment
  UCD102777  Quercus X morehus Daniel Sanchez-Mata; M. G. Barbour and M. P. Rodriguez-Rojo 2002-5-4 s.n. Napa Lake Berryessa. Monticello Dam-Moskowite Corner. 280 Comment
  UCR23941  Quercus X morehus John C. Roos 1939-4-16 281 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  JEPS37370  Quercus agrifolia W. L. Jepson 1907-12-1 2974 Napa Sanitarium Hill road Napa Valley Comment
  JEPS37708  Quercus agrifolia W. L. Jepson 1895-11-25 Napa St. Helena Comment
  SACT002605  Quercus agrifolia John Willoughby 1976-5-18 Napa Not far below top latitude about that of Mount Vaca, with Pinus sabiniana. Note tufts of hair in vein islets. Comment
  UCD45140  Quercus agrifolia W. C. Overton Jr. 1980-7-13 s.n. Napa From a population of this speciesm Q. wislizenii, and a few hybrids; along south bank of Eticuera Creek ca. 1 1/2 road miles north of Lake Berryessa, Napa Co., Calif.; elev. 580 feet. Location is to the west of the Berryessa-Knoxville Road (at the 20.00 mile marker) where the creek turns sharply to the NW, away from the road. (Extends the range of Q. agrifolia in this area by ca. 15 miles to the NE of the limits shown in Griffin and Critchfield, 1972). No. 1 of 4 sheets. 176 Comment
  CHSC47414  Quercus berberidifolia Lowell Ahart 1976-3-7 1024 Napa On steep hillsides, on the south side of the road and across a small stream, about 2 miles south-west of the Monticello Dam. 152 Comment
  JEPS116528  Quercus berberidifolia Jake Ruygt 2002-4-1 4379 Napa Blue Ridge north of Mays Flat. Knoxville 7.5' Quad. Comment
  SFV878  Quercus berberidifolia M. Shaw 1963-5-13 s. n. Napa North Coast Ranges Vaca Mountains. Below CA-Highway 128, 4 miles west of Monticello Dam. 120 Comment
  UCD14834  Quercus berberidifolia John M. Tucker 1950-11-12 2014 -7 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD14835  Quercus berberidifolia John M. Tucker 1950-11-12 2014 -8 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD45203  Quercus berberidifolia Thomas Morley 1941-5-11 125 Napa Elevation 461 feet. On west bank of Putah Creek immediately above junction with Butts Creek, Napa County. 140 Comment
  UCD45210  Quercus berberidifolia G. L. Stebbins Jr. 1948-5-9 3938 Napa South-facing slope, on edge of serpentine formation; Capell Canyon, beside road from Monticello to Rutherford, 9 miles southeast of Monticello, Napa County, California. Comment
  UCD45219  Quercus berberidifolia John M. Tucker 1950-11-12 2014 5 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; southeast-facing hillslope above sage Creek. Comment
  JEPS84696  Quercus chrysolepis John W. Willoughby 1976-4-12 1378 Napa w side Blue Ridge (near Mount Vaca); Vaca Mountains 792 Comment
  CAS-BOT-BC85938  Quercus douglasii M. S. Jussel 1932-4-10 s.n. Napa St. Helena, 10 miles NE Cliff Spring Comment
  SFV17780  Quercus douglasii J. M. Tucker 1995-10-14 s. n. Napa Homestead Area of the McCormick Ranch, about 1.1 miles north of Bald Mountain in Sugar Loaf State Park, and roughly 7 miles west of St. Helena. 549 Comment
  UCD45639  Quercus douglasii D. Sanchez-Mata; M. G. Barbour 1996-5-12 s.n. Napa Lake Berryessa. Pope Creek. Open woodland. 380 Comment
  UCD45739  Quercus douglasii John M. Tucker 1954-9-23 2755 Napa East side of Highway 37 .1 mile south of junction with Wooden Valley Road (about 9.5 miles north-east of Napa), Napa County, California. Comment
  UCD45768  Quercus douglasii John M. Tucker 1995-10-14 s.n. Napa California, Napa Co.; Homestead Area of the Mc Cormick Ranch, approximately 1.1 mi. north of Bald Mountain in Sugar Loaf State Park, and roughly 7 mi. west of St. Helena; elev. ca. 1800 ft. 548 Comment
  UCD92305  Quercus douglasii J. M. Tucker 1954-9-23 2756 Napa West side of Highway 37. 0.1 mile south of junction with Wooden Valley Road (about 9.5 miles northeast of Napa). Comment
  CAS-BOT-BC79834  Quercus durata John Thomas Howell 1930-10-19 5615 Napa Rocky Canyon 3 mi from Aetna Springs on Butts Canyon road to Middletwon Comment
  CAS-BOT-BC79843  Quercus durata Walter Knight; Irja Knight 1963-9-15 241 Napa Los Alamos Rd., Santa Rosa Comment
  CAS-BOT-BC79848  Quercus durata R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6680 Napa Butts Canyon, 10 mi N of Howell Mt. Comment
  CHSC85477  Quercus durata G. F. Hrusa; G. L. Stebbins 1994-3-11 11602 Napa On Ink Grade approx. 2 miles N of Angwin. 520 Comment
  JEPS37339  Quercus durata Willis L. Jepson 1892-7 Napa near Knoxville; Mountain Region of Clear Lake Comment
  JEPS37351  Quercus durata W. L. Jepson 1930-10-19 15693 Napa Butts Canyon Comment
  RSA8544  Quercus durata J. T. Howell 1933-8-27 11642 Napa Sage Canyon, Napa Range. Comment
  SFV17680  Quercus durata J. M. Tucker, G. L. Stebbins, Jr. 1950-11-5 2007 30 Napa Beside road up Howell Mountain, 5.6 miles north of St. Helena. Comment
  UCD14807  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2007 -5 Napa California, Napa Co.; beside road up Howell Mountain, 5.6 mi. north of St. Helena; Comment
  UCD14808  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2007 -6 Napa California, Napa Co.; beside road up Howell Mountain, 5.6 mi. north of St. Helena; Comment
  UCR106782  Quercus durata J. M. Tucker, G. L. Stebbins 1950-11-5 2011 -14 Napa below Conn Valley Dam, hillside across creek from picnic area Comment
  UCR106783  Quercus durata J. M. Tucker 1950-11-12 2014 -24 Napa Hwy 28, 7.7 mi. (by road) west of junction with Hwy 37. Comment
  UCD45910  Quercus durata var. durata Thomas Morley 1941-5-11 129 A Napa On north bank of Butts Creek 1/4 mile west of its junction with Putah Creek, Napa County. Elevation 480 feet. 146 Comment
  UCD45970  Quercus durata var. durata Barbara Rice 1966-9-22 580 Napa Shrub on cut bank in west side of road; Knoxville- Berryessa road, 0.4 mile south of junction with Pope Canyon Road, Napa County, California. Comment
  UCD83397  Quercus garryana Jake Ruygt 1988-7-31 2225 Napa Bothe State Park. 207 Comment
  UCD83398  Quercus garryana Jake Ruygt 1992-7-18 3099 Napa Green Valley Ranch, end of Green Valley Rd. 329 Comment
  CAS-BOT-BC105299  Quercus kelloggii Alice Eastwood 1918-5-1 6820 Napa Mt. St. Helena Comment
  CDA29134  Quercus kelloggii D. G. Kelch, Daniel Weinstein 2009-6-21 9 .445 Napa Near Skyline Park. Comment
  RSA623982  Quercus kelloggii T. Gertrude Williamson 1924-7-4 346 Napa Canon near S. Helena, Napa Valley. Comment
  UC615441  Quercus kelloggii Beryl O. Schreiber 1932-4-3 200 Napa road to Calistoga Comment
  UCD46743  Quercus kelloggii John M. Tucker 1995-10-14 s.n. Napa California, Napa Co.; Homestead Area of the Mc Cormick Ranch, approximately 1.1 mi. north of Bald Mountain in Sugar Loaf State Park, and roughly 7 mi. west of St. Helena. 548 Comment
  SEINET5644379  Quercus kelloggii D. Q. Cavagnaro 1963-10-18 225 Napa At Napa Valley Ranch Club road junction, 2.8 miles west of Moskowite Corners.; 0 Comment
  JEPS37469  Quercus lobata Willis L. Jepson 1901-11-17 1751 Napa St. Helena Napa River Basin Comment
  UCD46832  Quercus lobata Thomas Morley 1941-5-11 122 Napa At Lombard's Ranch, west side of Putah Creek just above junction with Butts Creek. 140 Comment
  CLARK-A1528-2913  Quercus wislizeni John C. Roos 1939-4-16 284 Napa Angwin Comment
  UCD149631  Quercus wislizeni G. Ledyard Stebbins 1994-4-15 s.n. Napa Berryessa Dam area at Route 128. Comment
  UCD47509  Quercus wislizeni D. Sanchez-Mata 1996-3-26 s.n. Napa Putah Creek. Lake Berryessa. 350 Comment
  RSA10629  Quercus wislizeni var. frutescens Carl B. Wolf 1928-5-4 1862 Napa Upper slopes of Mount St. Helena. Comment
  UCD89690  Ranunculus aquatilis Paul A. Aigner 2004-4-10 s.n. Napa DFG Knoxville Wildlife Area, adjacent to McLaughlin Reserve, Foley Canyon. 635 Comment
  RSA114032  Ranunculus californicus var. gratus Peter H. Raven 1957-5-5 10780 Napa Hills at western edge of Calistoga. Comment
  UC9420  Ranunculus canus Willis L. Jepson 1893-5-1 Napa Upper Napa Valley Napa River Basin Comment
  UCD96154  Ranunculus hebecarpus J. M. Tucker 1977-4-24 4388 Napa above Eticuera Creek, west side of Berryessa - Knoxville Road, 15.6 miles (by road) north of junction with Pope Canyon Road (2.3 miles southeast of Knoxville Mine.) 304 Comment
  JEPS60702  Ranunculus occidentalis W. L. Jepson 1920-5-25 9044 Napa Knoxville Ridge; ne Napa Co. 670 Comment
  UC162878  Ranunculus occidentalis Joseph P. Tracy 1902-5-22 1631 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  UCD49118  Ranunculus occidentalis S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 1 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, E side of Decker Canyon about 150 m up Cut-Off Rd. from South Decker Canyon Rd. 182 Comment
  UC9388  Ranunculus orthorhynchus var. bloomeri Willis L. Jepson 1893-4-26 Napa Rutherford Napa River Basin Comment
  UCD167158  Ranunculus orthorhynchus var. bloomeri Jake Ruygt 2015-3-14 6041 Napa Silverado Trail about 0.2 miles north of First Street. 5 Comment
  UC162818  Ranunculus pusillus Joseph P. Tracy 1902-5-18 1531 Napa La Jota Plateau Northern Coast Region, Howell Mountain (on hills at head of Moore's Creek, 3-4 mi e of Angwin's) 518 Comment
  SEINET8889133 Image available Raphanus raphanistrum Alex Lasseigne 2003-1 13722 Napa vicinity of empty field near Marina, on Hwy 37 to Napa Valley. Comment
  HSC29055  Raphanus sativus Thomas W. Nelson 1973-8-14 1109 Napa E of Napa Comment
  CDA3874  Reseda luteola David J. Keil, V. L. Holland, Lynne Dee Oyler, G. F. Hrusa, G. L. Stebbins 1994-6-6 24509 Napa Near east end of Lake Hennessy along Highway 128. Comment
  CAS-BOT-BC427555  Reseda luteola Betty H. Johnson 1958-6-20 647 Napa Near Mt. Mill House, 6.4 mi. S.-W. of Middletown Comment
  CDA7607  Rhagadiolus stellatus T. C. Fuller 1961-6-15 6336 Napa G.A. Wilson Ranch, Dry Creek Road, 2 miles west of Yountville Comment
  SD175803  Rhagadiolus stellatus D. G. Kelch 2002-4-10 02 1 Napa Redwood Road, west of Napa city limits. 60 Comment
  UCD96189  Rhagadiolus stellatus Ellen Dean; with Clare Loughran 2011-5-20 7073 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property, west of main road and near property boundary. 614 Comment
  JEPS110644  Rhamnus crocea Jake Ruygt 1979-5-4 578 Napa Trefethen hillside property east of Carell Lane 152 Comment
  JEPS41999  Rhamnus crocea Willis L. Jepson 1893-4-28 13970 Napa n of Mt. George (gorge n of Wooden Valley grade); Napa Range, Napa River Basin Comment
  CAS-BOT-BC56018  Rhamnus ilicifolia John Thomas Howell 1929-8-4 4366 Napa One mile below Samuels Springs, Pope Creek Canyon, Napa Range Comment
  CAS-BOT-BC56019  Rhamnus ilicifolia H. E. McMinn 1922-3-27 55 Napa Slope on Mt. St. Helena Comment
  UC413095  Rhododendron occidentale H. P. Chandler 1907-4-25 7537 Napa below Conn Valley (Chiles Valley Road); Chiles Valley Road Comment
  UCD164590  Rhododendron occidentale A. Amezcua 1995-4-29 3 Napa Along the side of Butts Canyon Road, 500 m south of Snell Valley Road. 400 Comment
  UCD167011  Rhododendron occidentale Jake Ruygt 1980-5-21 897 Napa 4.2 miles north of Monticella Rd. on Hwy 128. 182 Comment
  CHSC21426  Rhus aromatica Robert A. Schlising; Botany 222 1962-5-4 2227 Napa 1.5 mi S Lake Co line on Butts Canyon Rd. Comment
  UCD39264  Rhus aromatica B. Crampton 1960-9-7 5776 Napa Vaca Mountains. Markley Canyon, along State Hwy. 128, above Lake Berryessa. Comment
  UCD63047  Rhus aromatica Daniel Sanchez Mata 2006-6-11 s.n. Napa Berryessa-Knoxville Road pr. Foley Creek close to UC McLaughlin Reserve. 460 Comment
  UCD14944  Rhus diversiloba Jonathan M. Irvine 1977-4-16 111 Napa California, Napa Co.; along Highway 128, 6.4 miles SSW of Monticello Dam; Comment
  UCD73419  Rhus trilobata Ayzik Solomeshch; Stephen Rae 2007-7-8 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  JEPS49319  Ribes californicum Willis L. Jepson 1893-5-2 13511 Napa Mts. e Calistoga (Pope Valley grade) Comment
  CAS-BOT-BC92977  Ribes californicum var. californicum H. E. McMinn 1922-6-8 209 Napa Along Pope Creek. Comment
  JEPS129079  Ribes californicum var. californicum Jake Ruygt 2016-4-5 6176 Napa Gunn Ranch, E side Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  CDA11151  Ribes malvaceum G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11562 Napa North Coast Biodiversity Arena; N side of Mt. George, above Sarco Creek, 10 m. NE of city of Napa. Comment
  UCD19944  Ribes malvaceum E. A. Dean; Virginia Boucher 2002-2-28 905 Napa Quail Ridge Reserve. Along upper trail, going N of stock pond at ridge top; going towards power lines, 0.1 airline miles S of powerlines, just upslope where lower and upper trails meet. 286 Comment
  RSA0021660  Ribes malvaceum Peter H. Raven 1950-4-15 1770 Napa Wooden Valley Grade above Napa. 457 Comment
  UCD167061  Ribes sanguineum var. glutinosum Jake Ruygt 1999-5-18 4165 Napa Skyline Park, along Marie Creek Road near lake. 244 Comment
  CAS-BOT-BC168762  Ribes victoris John Thomas Howell 1940-5-19 15450 Napa Upper St. Helena Creek Comment
  JEPS110835  Ribes victoris Jake Ruygt 1989-3-18 2239 Napa Farm Labor Camp near Rector Res 73 Comment
  CHSC59949  Rigiopappus leptocladus Glen Holstein 1977-5-11 Napa Along State Highway 128, 0.2 mile south of intersection with Berryessa-Knoxville Road, Capell Valley. Comment
  JEPS106864  Rigiopappus leptocladus Jake Ruygt 1986-4-26 1731 Napa east of Wragg Canyon resort, Blue Ridge 304 Comment
  JEPS106905  Rigiopappus leptocladus Jake Ruygt 1981-5-21 1039 Napa ridge west of Putah Creek, north of Snell Valley 231 Comment
  CAS-BOT-BC74592  Rorippa curvisiliqua John Thomas Howell 1926-4-3 1782 Napa Near Yountville. Comment
  CAS-BOT-BC147536  Rosa californica Peter H. Raven 1952-8-26 5146 Napa Railway 3/4 mi. w. of Buchli Sta. 30 Comment
  JEPS77931  Rosa californica Edward Lee Dec. 1935 1676 Napa 1/2 mi s south junction of Napa-Monticello Road ((between the Howell and Vaca Mts.)); Wooden Valley Comment
  UC555671  Rosa californica Herbert L. Mason 1923-10-6 774 Napa along Wooden Valley Rd. Comment
  CAS-BOT-BC148156  Rosa gymnocarpa Peter H. Raven 1964-5-9 19055 Napa Edge of redwood grove along dirt road 2 miles west of Aetna Springs Comment
  CAS-BOT-BC148158  Rosa gymnocarpa A. A. Heller 1924-4-12 13838 Napa About 5 miles south of Calistoga Comment
  CAS-BOT-BC148159  Rosa gymnocarpa Alice Eastwood 1922-5-4 11248 Napa Calistoga Comment
  JEPS112569  Rosa gymnocarpa Jake Ruygt 1976-5-14 76 Napa 4.0 miles west of HWY 29 on Redwood Rd. 97 Comment
  RSA195350  Rosa gymnocarpa Gilbert Muth 1967-5-19 692 Napa Milliken Dam. 335 Comment
  JEPS112570  Rosa rubiginosa Jake Ruygt 1987-5-11 1983 Napa Milliken Creek below Foss Valley 393 Comment
  CAS-BOT-BC148210  Rosa spithamea Peter H. Raven 1951-8-21 3877 Napa Mt. Veeder 792 Comment
  JEPS122764  Rotala ramosior Jake Ruygt 2009-7-18 5461 Napa Wild Lake. Quad: St. Helena. Comment
  UCD17683  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 77 Napa California. Napa County: 2 miles west of Sage Creek on Highway 128. Comment
  UCD17693  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 83 Napa California. Napa County: junction of Silverado Trail and Spring Valley Road near 'Mather House. Comment
  SBBG50772  Rubus parviflorus G. E. Gaboury 1971-5-8 G- 38 Napa N slope of Howell Mtn off Chiles Rd Comment
  UCD114003  Rubus ursinus Heidi E. M. Dobson 1978-4-8 303 Napa East slope of Mt. Veeder. Comment
  UCD41469  Rumex Ellen Dean; Deborah Canington 2003-3-1 1366 Napa Napa County. Quail Ridge UC Reserve. Southern end of Lake Berryessa, first peninsula west of Monticello Dam. Along Decker Bay Trail, right along stream. 176 Comment
  CAS-BOT-BC421716  Rumex conglomeratus Peter H. Raven 1951-6-24 3009 Napa Napa 30 Comment
  CAS-BOT-BC434078  Rumex transitorius Peter H. Raven 1951-9-9 3892 Napa Fields at Solano Co. line w. of Hy. 29 15 Comment
  CAS-BOT-BC434079  Rumex transitorius Kate E. Phelps 1932-9-1 s.n. Napa Myrtledale Hot Springs near Calistoga Comment
  JEPS65646  Rupertia physodes W. L. Jepson 1924-4-27 10371 Napa Toll House Mt. St. Helena Comment
  JEPS106743  Salicornia virginica Jake Ruygt 1991-7-19 2764 Napa south of the end of S. Jefferson St. 1 Comment
  UC465477  Salicornia virginica Milo S. Baker Aug 1900 Napa near Napa River Comment
  JEPS118644  Salix breweri B. Castro and L. P. Janeway 2002-5-12 1369 Napa Inner North Coast Ranges. Ca 0.8 mi NW of Cedar Valley, at crossing of Cedar Creek, along the road from Devilhead Road. Knoxville 7.5' quad. Comment
  UC482103  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 a Napa between Pope Springs and Aetna Valley; Butt Canyon Comment
  UC517434  Salix breweri John Thomas Howell 1933-8-27 11641 Napa Sage Canyon Napa Range Comment
  UCD110792  Salix breweri Edward L. Smith 1967-5-7 s.n. Napa Butts Creek, below small reservoir at upper (northwest) end of canyon where road from Pope Valley enters, Butts Canyon, 6.9 miles northwest of Pope Valley. 213 Comment
  RSA92612  Salix breweri D. D. Keck 1931-4-3 1075 Napa 5 miles NE of Aetna Springs, along Butts Creek. Comment
  UCD170813  Salix eastwoodiae 2018-4-28 5 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. Along drainage leading to Maxwell Creek. 166 Comment
  UC483319  Salix exigua var. hindsiana Ira L. Wiggins 1932-3-12 5756 Napa 1 mi n Calistoga; N. Fork Napa R. Comment
  UC634548  Salix exigua var. hindsiana H. L. Mason 1926-3-14 2719 Napa along stream in grove Mt. St. Helena Comment
  UCD164794  Salix gooddingii Jake Ruygt 2012-6-30 5871 Napa Putah Creek north of Berryessa Estates. 137 Comment
  CAS-BOT-BC108194  Salix hindsiana Ira L. Wiggins 1932-3-12 5756 Napa North fork of the Napa River, 1 mi. N. of Calistoga Comment
  CAS-BOT-BC108197  Salix hindsiana Lewis S. Rose 1937-4-4 37020 Napa 4 mi. N. of Wooden Valley 335 Comment
  JEPS38362  Salix laevigata Willis L. Jepson 1903-9-6 2341 Napa St. Helena; Napa River Basin Comment
  JEPS38404  Salix laevigata Willis L. Jepson 1893-4-29 16 s Napa Bewery Rd. York Creek; Napa River Basin Comment
  UCD164802  Salix laevigata Jake Ruygt 1994-4-26 3356 -b Napa North of Barnett and Pope Valley Rd. 240 Comment
  UCD164803  Salix laevigata Jake Ruygt 1995-3-21 3408 Napa End of Niebaum Lane, Bear Canyon. 89 Comment
  CAS-BOT-BC125150  Salix lasiandra var. lasiandra Ira L. Wiggins 1932-3-12 5750 Napa North fork of the Napa River, 1 mi. N. of Calistoga Comment
  CAS-BOT-BC107047  Salix lasiolepis C. R. Ball; Harold E. Parks 1931-2-17 17 a Napa One mile northwest of Calistoga Comment
  UC504072  Salix lasiolepis C. R. Quick and J. A. Vogtmann 1933-3-2 W 2 Napa 10 mi from Monticello (Rutherford to Monticello); Chiles Valley Comment
  CAS-BOT-BC124412  Salix lasiolepis var. lasiolepis Peter H. Raven 1951-6-26 3065 Napa Wooden Valley Grade 304 Comment
  POM182720  Salvia columbariae D. D. Keck 1931-4-3 1067 Napa Pope Creek Canyon, 8 miles NW of Monticello Comment
  UC25739  Salvia sonomensis Willis L. Jepson 1893-5-1 Napa w of Calistoga; Napa River Basin Comment
  POM180781  Sanguisorba minor J. T. Howell 1930-7-13 5366 Napa Upper Napa Valley Comment
  JEPS104481  Sanicula bipinnatifida Jake Ruygt 1994-4-26 3356 Napa Pope Valley near Pope Valley Rd. 256 Comment
  JEPS223  Sanicula bipinnatifida W. L. Jepson 1915-4-23 6267 Napa Chiles Creek hills Napa Range Comment
  UC1197107  Sanicula bipinnatifida J. P. Tracy 1899-6-26 410 Napa 3-4 mi e of Angwin's (Howell Mountain, Head of Moore's Creek); Howell Mountain, Moore's Creek 365 Comment
  UCD83722  Sanicula bipinnatifida Surene Foutouhi; with E. Dean, Yuan-Chun Han 2010-5-7 1 Napa Along Wooden Valley Road; East side of the road; Lamb Vineyard Property. 185 Comment
  UCD18157  Sanicula crassicaulis Eva Bayon; with Plant Biology 102 class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. Ca. 0.20 - 0.50 miles as the crow flies N of site of old town of Knoxville, along road to Clover Valley. 463 Comment
  UC1368792  Sanicula crassicaulis David H. French 1968-4-20 2860 Napa about 11 mi nw of Napa (w side of road called Silverado Trail) Comment
  UCD163271  Sanicula tuberosa D. Slakey; CNPS Volunteers 2015-4-25 116 Napa Sensitive Plant Canyon', about 900 m SSW of Campground at the west end of Hunting Creek Rd., near Knoxville. 335 Comment
  UCD47842  Sanicula tuberosa Robert Wolfson; J. Westbrook, S. Ratay, A. Houser, M. Disney, S. Wathen 2000-4-22 37 Napa Napa Co, McLaughlin Reserve, approx. 0.5 miles South of Berryessa-Knoxville Rd. Along east side of Devilhead Rd, 1st ridge south of Devilhead Rd. 518 Comment
  UC765478  Scandix pecten-veneris R. F. Hoover 1941-4-27 4942 Napa Napa Junction Comment
  UCD17968  Scandix pecten-veneris Ellen Dean; Kate Mawdsley 2001-4-9 687 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along Decker Ridge Trail at jct with South Decker Canyon Rd. 359 Comment
  CAS-BOT-BC278215  Schedonorus arundinaceus Peter H. Raven 1952-5-29 4097 Napa 1 mi. n. Napa 45 Comment
  UCD50087  Schoenoplectus acutus var. occidentalis R. Tofsrud 1947-5-3 s.n. Napa Pope Creek. Comment
  JEPS63963  Scirpus microcarpus W. L. Jepson 1916-8-6 6841 Napa Moore's Creek , Moore's Creek (Howell Mt.) 487 Comment
  JEPS63962  Scirpus microcarpus W. L. Jepson 1918-6-24 7667 Napa half way to toll-house on Mt. St. Helena from Calistoga (Silverado); , half way to toll-house on Mt. St. Helena Comment
  JEPS126132  Scleranthus annuus subsp. annuus Jake Ruygt 2010-6-21 5642 Napa Bear Valley north of pond. Detert Reservoir 7.5' Qua. Comment
  CAS-BOT-BC516411  Scoliopus bigelovii Mrs. Clara Hunt 1921-4-1 s.n. Napa St. Helena Comment
  HSC10894  Scribneria bolanderi J. T. Howell 1940-5-19 15464 Napa Upper St. Helena Creek Comment
  RSA0054926  Scrophularia californica Keith E. Hoffmaster 1946-3-9 1252 Napa Napa-Monticello road. Comment
  JEPS110740  Scrophularia californica subsp. floribunda Jake Ruygt 1981-4-22 998 Napa American Canyon east of Flosden Rd. 18 Comment
  UC1713626  Scutellaria californica Joseph Andorfer Ewan 1934-4-30 8841 Napa 5 mi s of Monticello (on Steel Canyon Road); Steel Canyon Road Comment
  POM63106  Scutellaria siphocampyloides C. F. Baker 1903-5-8 2970 Napa Knoxville. Comment
  UC1301163  Scutellaria siphocampyloides Helen K. Sharsmith 1962-6-3 5108 Napa Napa-Soda Springs Road; San Francisco Bay Region, Napa-Soda Springs Road 152 Comment
  UC154011  Scutellaria tuberosa Joseph P. Tracy 1902-5-21 1578 Napa 3-4 mi e of Angwin's (Howell Mountain, head of Moore's Creek); Northern Coast Ranges, Howell Mountain, Moore's Creek 457 Comment
  UCD73410  Scutellaria tuberosa Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  JEPS120411  Secale cereale Jake Ruygt 2009-5-15 5409 z Napa Hwy 12, Jameson Canyon, 1/4 w of county line. Comment
  CAS-BOT-BC63776  Sedum radiatum subsp. radiatum Peter H. Raven 1951-6-10 2912 Napa Crater Region E of Mt. St Helena 762 Comment
  SD77911  Sedum spathulifolium Betty H. Johnson 1958-6-15 617 Napa Near St. Helena River, 6.4 miles southwest of Middletown. Comment
  UCR254842  Selaginella wallacei Greg de Nevers 1998-2-16 11137 Napa North Coast Range, Devils [Punchbowl] Falls [Bell Canyon Creek near Angwin] 320 Comment
  CAS-BOT-BC363359  Senecio aronicoides J. Clausen 1935-5-23 1072 c Napa Howell Mountain, near summit, 6.5 mi. N. of St. Helena Comment
  CAS-BOT-BC363358  Senecio aronicoides Peter H. Raven 1951-6-10 2916 Napa Crater Region e. of Mt. St. Helena 762 Comment
  CDA8606  Senecio clevelandii B. E. Eaton 1970-6-24 Napa Berryessa Estates, Snell Valley. 0 Comment
  CAS-BOT-BC327422  Senecio flaccidus var. douglasii John Thomas Howell 1930-10-19 5607 Napa Conn Creek near entrance of Sage Canyon, Napa Valley Comment
  CAS-BOT-BC364596  Senecio vulgaris Peter H. Raven 1954-2-22 6411 Napa Orchard at east end of Saint Helena 60 Comment
  CAS-BOT-BC364598  Senecio vulgaris John H. Thomas 1958-4-19 7118 A Napa About 2 miles SW of Oakville 152 Comment
  UC401313  Sequoia sempervirens C. F. Sonne 1897-4-1 Napa near Napa City Comment
  CAS-BOT-BC240158  Setaria verticillata Peter H. Raven 1951-8-21 3879 Napa Lokoya 457 Comment
  CAS-BOT-BC240238  Setaria viridis Peter H. Raven 1952-9-14 5183 Napa Napa State Game Farm 121 Comment
  CAS-BOT-BC240239  Setaria viridis John H. Thomas 1966-5-8 11593 Napa At Louis Martini Winery, near St. Helena Comment
  UCD160750  Sidalcea Ellen Dean 2015-5-23 8802 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 207 Comment
  POM118525  Sidalcea diploscypha Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA185857  Sidalcea diploscypha John H. Thomas 1955-5-21 5158 Napa Near State Highway No. 125 and Capell Creek, about 12 miles east of St. Helena 244 Comment
  POM216232  Sidalcea diploscypha D. D. Keck 1933-5-29 2363 Napa Pope Creek bridge, S of Walters Springs, S. of creek Comment
  JEPS110706  Sidalcea hartwegii Jake Ruygt 1985-5-18 1595 Napa west of Veteran's Home toward L. Hinman 182 Comment
  JEPS110707  Sidalcea hartwegii Jake Ruygt 1998-7-18 4099 Napa Bear Valley at pond. 646 Comment
  UC108903  Sidalcea hartwegii E. L. Greene Napa Napa Comment
  UCD116745  Sidalcea hartwegii Jake A. Ruygt 1975-5-17 37 Napa above south wall of canyon, Milliken Creek, 4.5 miles south of Trancas Street and State Highway 29 intersection. 60 Comment
  JEPS110725 Image available Sidalcea hickmanii subsp. napensis Jake Ruygt 1992-5-15 2959 Napa west of Leoma Lakes at base of Mt. George 420 Comment
  UCD167291  Sidalcea hirsuta Jake Ruygt 2007-5-10 5171 Napa G.I. Landfill site, Butts Canyon Road about 3 miles south of Middletown. 335 Comment
  UCD20538  Sidalcea keckii E. Dean; w/ PLB 102 class 2002-4-4 1000 Napa McLaughlin UC Reserve. Along Knoxville-Berryesa road just W of turnoff to old town of Knoxville, N side of road. 441 Comment
  JEPS110722  Sidalcea malviflora subsp. laciniata Jake Ruygt 1982-3-26 1150 Napa Suscol ridge SE of Rocktram 18 Comment
  POM118515  Sidalcea malviflora subsp. laciniata Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  JEPS51044  Silene antirrhina W. L. Jepson 1938-5-25 18864 Napa Bell Canyon Howell Mountain, Bell Canyon 579 Comment
  RSA92932  Silene antirrhina P. H. Raven 1951-6-6 3056 Napa Wooden Valley Grade. 305 Comment
  UC161033  Silene californica Joseph P. Tracy 1905-7-5 2208 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek, Howell Mountain); Northern Coast Ranges, Howell Mountain, Moore's Creek 457 Comment
  CAS-BOT-BC389182  Silene laciniata subsp. californica Alice Eastwood; John Thomas Howell 1939-6-11 7429 Napa Hills west of Calistoga Comment
  JEPS106853  Silene multinervia Jake Ruygt 1997-6-22 3867 Napa Bismark Knob 640 Comment
  JEPS59331  Silybum marianum W. L. Jepson 1936-6-2 17606 Napa banks Napa River (near bridge on road to Sanitarium, St. Helena); banks Napa River, St. Helena Comment
  UCD148092  Silybum marianum Jake Ruygt 1978-5-13 300 Napa Suscol Hill, west of Hwy 29 (221). 7 Comment
  CAS-BOT-BC364803  Silybum marianum Betty H. Johnson 1958-6-15 643 Napa 1/4th mi. above Mt. Mill House, 6.4 mi S.-W. of Middletown Comment
  POM118568  Sisyrinchium bellum Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  UCD138795  Sisyrinchium bellum Heidi E. M. Dobson 1978-4-8 301 Napa east slope of Mt. Veeder. Comment
  JEPS64270  Sisyrinchium bellum Willis L. Jepson 1893-4-25 Napa w of St. Helena (trail to Beaux's Cabin); Napa River Basin Comment
  POM291000  Sisyrinchium bellum Lyman Benson 1930-3-31 2020 Napa Calistoga, North Coast mt. range, base of Mt. St. Helena 305 Comment
  RSA639496  Sisyrinchium bellum Lorraine Clarke 1977-4-16 26 Napa East Bull Canyon, 6.4 miles by road south-southwest of Monticello Dam along Highway 128, 0.5 road miles away from Highway 128 183 Comment
  UC429224  Sisyrinchium bellum C. F. Sonne Apr. 1897 6817 Napa Napa Valley Comment
  UCD16048  Sisyrinchium bellum C. L. Hallock; C. Kennedy, L Condon, N. Strahan, R. Flannery 2000-4-22 22 Napa McLaughlin Reserve, North of Knoxville-Berryessa Rd., along old Knoxville Rd., just S of site of old town of Knoxville, W side of road. 38 deg. 49' 38.7' N, 122 deg. 20' 22.4' W; 420 m. Grassland, moist reddish-brown clay soil, E-facing slope. Herb, 1.5-3 dm tall, solitary purple flowers with 6 clawed petals. Comment
  UCD23394  Sisyrinchium bellum Alana Adams 1977-4-28 10 Napa Grassy meadow, partly shaded by oaks. 14.75 miles north of Barryessa Knoxville Rd. and Highway 128 intersection on Berryessa Knoxville Rd. 243 Comment
  CHSC102304  Solanum americanum Lowell Ahart 2009-10-12 16456 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  UCD126989  Solanum parishii R. L. Smith 1948-5-7 s.n. Napa Pope Valley. Comment
  UCD48199  Solanum parishii Yumee Kim; L. Bachman, P. Lalbhai 2002-4-13 8 Napa McLaughlin UC Reserve. N of Berryessa-Knoxville Road. Just SW of the old town of Knoxville. 426 Comment
  RSA755379  Solanum rostratum L. Ahart 2009-10-27 16494 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road., About 20 air miles northwest of Winters. 130 Comment
  UC26280  Solanum umbelliferum H. P. Chandler 1900-5-7 Napa Rutherford Comment
  JEPS7819  Solanum umbelliferum Peter H. Raven 1952-5-31 4159 Napa on Rector Creek Rector Creek 121 Comment
  POM204485  Solanum umbelliferum J. T. Howell 1933-5-21 11316 Napa Hills east of Napa. Comment
  UC36208  Solidago elongata Willis L. Jepson 1893-9-24 Napa Howell Mt. Napa River Basin, , Angwin's Meadows (Napa River Basin, Angwin's Meadows) Comment
  CAS-BOT-BC365094  Solidago velutina subsp. californica Harley P. Chandler 1906-9-7 7117 Napa Howell Mountain. Alta Loma Ranch 548 Comment
  CAS-BOT-BC365097  Solidago velutina subsp. californica Mrs. E. C. Sutliffe 1921-9-5 s.n. Napa Oakville Comment
  CDA7649  Soliva sessilis R. Barrett 1958-5-22 437 -58 Napa Napa. 0 Comment
  JEPS106873  Soliva sessilis Jake Ruygt 1986-4-19 1711 Napa .4 miles east of Flosden Rd. on American Canyon Rd. 36 Comment
  JEPS18730  Soliva sessilis W. L. Jepson 1938-5-25 18856 Napa Bell Canyon , Bell Canyon (Howell Mountain) 579 Comment
  CAS-BOT-BC235337  Sorghum halepense James H. Kavanagh 1921-10-1 s.n. Napa Napa Comment
  JEPS106615  Spergula arvensis Jake Ruygt 1977-2-16 128 Napa Big Ranch Rd. at Trancas St., SW corner 13 Comment
  POM118625  Spergula arvensis Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  CAS-BOT-BC390280  Spergularia macrotheca var. longistyla Rimo Bacigalupi 1926-3-27 1254 Napa Opposite Myrtledale Geyser 1 1/2 miles north of Calistoga Comment
  CAS-BOT-BC390291  Spergularia macrotheca var. longistyla Alice Eastwood 1915-6-5 4639 Napa Calistoga Comment
  RSA0098485  Spergularia macrotheca var. longistyla Rimo C. Bacigalupi 1926-3-27 1254 Napa Opposite Myrtledale Geyser. 1.5 miles north of Calistoga. Comment
  SEINET9367953  Stachys ajugoides var. ajugoides Unknown 1995-9-12 12461 Napa Napa County Comment
  JEPS63063  Stachys ajugoides var. rigida W. L. Jepson 1936-5-31 17575 Napa La Jota plateau Howell Mtn. Comment
  JEPS112628  Stachys albens Jake Ruygt 1979-6-18 712 Napa corner of Snell Valley Rd. and Butts Can yon Rd. 195 Comment
  JEPS62975  Stachys albens W. L. Jepson 1936-7-6 17652 Napa Sage Canyon Napa Range Comment
  UCD18106  Stachys albens K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 42 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UCD69149  Stachys albens D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-24 s.n. Napa Aetna Springs-Middletown. Butts Canyon Road. Riparian Sargent cypress woodland on serpentine alluvial and rocky soils. 270 Comment
  RSA505701  Stachys albens Gordon H. True Jr. 1937-7-30 828 Napa Stream near Etna Springs. 366 Comment
  RSA10668  Stachys bullata Carl B. Wolf 1928-5-3 1821 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UCD126048  Stachys rigida var. quercetorum J. D. Clark 1995-5-27 14 Napa collected on trail between 1/3 - 3/4 mile from trailhead at Highway 29. Trailhead begins on the east side of Highway 129 across from the Robert Lewis Stevenson State park parking lot. 548 Comment
  JEPS115731  Stachys stricta Lowell Ahart 2009-10-12 16441 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winte 133 Comment
  UCD148834  Stachys stricta Ellen Dean; Diana Hickson 2014-4-29 8139 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 560 Comment
  UCD17986  Stellaria media Ellen Dean; with Plant Biology 102 class 2001-4-14 712 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. At junction of West Loop Rd. and Decker Bay Trail. 152 Comment
  CAS-BOT-BC393991  Stellaria nitens Peter H. Raven 1950-4-15 1716 Napa Silverado Trail outside of Napa Comment
  JEPS106612  Stellaria nitens Jake Ruygt 1996-4-10 3575 Napa Soda Spring, White Cliff Springs 396 Comment
  UC35828  Stephanomeria elata Willis L. Jepson 1893-9-23 Napa Upper Napa Valley, Napa River Basin. Comment
  HSC100782  Stephanomeria virgata subsp. pleurocarpa Lowell Ahart 2009-10-12 16430 Napa Along W side of Capell Creek, N of rest area, 3/4 mi. SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd., 19 (air) mi. W of Winters. 133 Comment
  JEPS126107  Stephanomeria virgata subsp. pleurocarpa Jake Ruygt 1978-8-29 401 Napa 8.3 miles N of Redwood Road on Dry Creek Road. Rutherford 7.5' Qua. Comment
  JEPS126135  Stephanomeria virgata subsp. pleurocarpa Jake Ruygt 2002-7-13 4443 Napa End of Redwood Road, Archer Taylor Preserve. Sonoma 7.5' Qua. Comment
  JEPS123027  Stipa lemmonii Jake Ruygt 2002-4-17 4390 Napa North of Foss Valley, Atlas Peak, Vineyards (Antinori). Quad: Rutherford. Comment
  UCD170572  Stipa miliacea var. miliacea Daniel Potter; N Khuu, K Battenberg 2016-4-30 865 Napa Knoxville Wildlife Area, on ridge west of Zim Zim Falls Creek trailhead. Comment
  UCD74403  Streptanthus barbiger Jake Ruygt 2007-6-23 5239 Napa Spring Mtn. Rd. across from York Creek Dam. 195 Comment
  CAS-BOT-BC61253  Streptanthus breweri Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5323 Napa Soda Creek, east of Chiles Valley. 121 Comment
  OBI14930  Streptanthus breweri Robert F. Hoover 1966-5-28 9879 Napa Just S of summit on Butts Cyn rd from Pope Valley Comment
  UCD74410  Streptanthus breweri Jake Ruygt 2005-6-4 4901 Napa Hunting Creek about 3/4 mile NE of Putah Creek. 201 Comment
  CAS-BOT-BC87157  Streptanthus glandulosus subsp. glandulosus David D. Keck 1933-5-29 2370 Napa Pope Creek Bridge, south of Walters Springs. Comment
  UC1177074  Streptanthus glandulosus subsp. glandulosus Peter H. Raven 1951-5-6 2825 Napa burn below Conn Dam 274 Comment
  UCD161701  Streptanthus glandulosus subsp. glandulosus Jake Ruygt 2010-5-1 5528 Napa southwest of end Cedar-Pocock Creek Road. (Coordinates converted from UTM data by label maker.) 365 Comment
  JEPS100815  Streptanthus hesperidis Dean Wm. Taylor with Mey Akasah 1999-6-4 17217 Napa ridge dividing Eticuera Creek from Zim Zim Creek, reached via jeep roads eastward of Devilhead Road 594 Comment
  JEPS129049  Streptanthus hesperidis Jake Ruygt 2016-6-6 6278 Napa Okin Ranch, Chiles Valley. St. Helena 7.5' Quad. Comment
  UC1736739  Streptanthus hesperidis Dean W. Taylor 1998-6-23 16689 Napa N flank Twin Peaks, ridge dividing Cedar Canyon & Bateman Cr (ca. 5 air mi W Aetna Springs) 655 Comment
  UCD170467  Streptanthus hesperidis Daniel Potter; Ninh Khuu 2016-6-18 896 Napa Above upper Zim Zim Creek drainage east of Knoxville-Devihlead Road, just north and east of Knoxville Wildlife Area boundary. 557 Comment
  JEPS12888  Symphoricarpos albus var. laevigatus Willis L. Jepson 1893-9-24 Napa Angwin's; Napa River Basin, Howell Mt. Comment
  CAS-BOT-BC97740  Symphyotrichum chilense John Thomas Howell 1933-8-27 11627 Napa Sage Canyon, Napa Range Comment
  CAS-BOT-BC97741  Symphyotrichum chilense Alice Eastwood; John Thomas Howell 1939-6-11 7419 Napa Hood Mt. Range sw. of Oakville Comment
  CAS-BOT-BC97737  Symphyotrichum chilense Alice Eastwood 1920-7-31 9987 Napa Vallejo Comment
  LA203051  Symphyotrichum lentum Milo S. Baker; 1932-9-24 6028 Napa southern outskirts of Napa City Comment
  JEPS122694  Symphyotrichum spathulatum Jake Ruygt 1981-6-18 1054 Napa 0.3 miles east of Flosden Road in American Canyon Road. Quad: Cordelia. Comment
  UC1949202  Symphyotrichum subulatum Barbara Ertter with Elizabeth Neese 1988-10-2 7950 Napa Lake Hennessey ca 15 airmiles NNW of Napa, on Conn Creek in North Coast Ranges; below spillway on N side of Rt 128 Comment
  CAS-BOT-BC376783  Tanacetum parthenium Peter H. Raven 1951-6-26 3039 Napa Napa 30 Comment
  UCD21544  Taraxacum officinale B. Pekin; Ellen Dean, Mark Bibbo, Alex Lee 2003-4-26 2 Napa California, Napa County, on Bureau of Land Management land S of McLaughlin Reserve. West of Devil Head Road, S side of Hunting Creek, S of Hunting Creek campground, next stream crossing W of confluence of Sensitive Plant Canyon and Hunting Creek. 320 Comment
  JEPS129144  Tetragonia tetragonoides Jake Ruygt 1980-3-27 819 Napa Napa Valley Garbage disposal site. Cuttings Wharf 7.5' Quad. Comment
  SBBG115391  Thermopsis californica var. californica T. Adams 1998-5-10 17 Napa 6 mi up Soda Cyn Rd Comment
  HSC43964  Thermopsis macrophylla Robert M. Specht 1977-4-11 617 Napa Along drainage of Pocock Creek 500 Comment
  HSC43989  Thermopsis macrophylla Robert M. Specht 1977-4-13 650 Napa 524 Comment
  JEPS126090  Thermopsis macrophylla Jake Ruygt 1976-5-7 65 Napa 8.0 miles NE of Westgate Drive on Atlas Peak Road. Capell Valley 7.5' Qua. Comment
  JEPS54167  Thysanocarpus curvipes W. L. Jepson 1897-5-2 30 f Napa St. Helena Comment
  UC1127030  Thysanocarpus curvipes B. O. Schreiber 1938-4-24 2496 Napa 5.2 mi nne Napa; Napa Quadrangle, Wooden Valley Grade 274 Comment
  UC1301099  Thysanocarpus curvipes Helen K. Sharsmith 1963-3-17 5208 Napa s side Mt. Atlas; San Francisco Bay Region, s side Mt. Atlas 609 Comment
  CAS-BOT-BC66507  Thysanocarpus curvipes John H. Thomas 1968-4-4 14274 Napa About 3 miles north of Calistoga on road to Lakeport. Comment
  JEPS54164  Thysanocarpus curvipes Willis L. Jepson 1893-4-25 29 d Napa hills w St. Helena (trail to Caux's Cabin); Napa River Basin, hills w of St. Helena Comment
  JEPS54165  Thysanocarpus curvipes Willis L. Jepson 1893-4-28 30 d Napa plateau n Mt. George (Upland meadows); Napa River Basin, n of Mt. George Comment
  UC10996  Thysanocarpus curvipes Willis L. Jepson 1893-4-28 Napa plateau n Wooden Valley grade (Napa River Basin); , n of Wooden Valley grade Comment
  UC11005  Thysanocarpus curvipes Willis L. Jepson 1893-4-28 Napa Napa City; Napa River Basin, Napa City Comment
  RSA233099  Thysanocarpus curvipes var. curvipes John H. Thomas 1968-4-4 14274 Napa About 3 miles N of Calistoga on road to Lakeport. Comment
  JEPS81602  Thysanocarpus curvipes var. elegans R. Raiche 1982-3-7 20190 Napa on Chiles and Pope Valley Road 1.3 mi n Sage Canyon Road Comment
  RSA0041675  Thysanocarpus curvipes var. elegans David D. Keck 1931-4-2 1052 Napa 4 miles S of Monticello. Comment
  CAS-BOT-BC67311  Thysanocarpus radians Peter H. Raven 1953-4-2 5244 Napa Hills south of Imola. 121 Comment
  CAS-BOT-BC67310  Thysanocarpus radians Peter H. Raven 1953-4-2 5296 Napa Tulucay Creek. 152 Comment
  RSA0041645  Thysanocarpus radians David D. Keck 1931-4-2 1046 Napa 4 miles S of Monticello. Comment
  UCD124645  Tonella tenella G. F. Hrusa; R. Cole, D. Anderson 1995-3-26 12024 Napa On N slope immediately below field house, Quail Ridge Reserve. 370 Comment
  UCD170303  Tonella tenella Daniel Potter; N Khuu, A Holland, J Poore, C Adlam 2016-3-19 843 Napa Knoxville Wildlife Area, southern portion, east of Berryessa-Knoxville Road. 231 Comment
  UCD17967  Torilis nodosa Ellen Dean; Kate Mawdsley 2001-4-9 686 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along Decker Ridge Trail at jct with South Decker Canyon Rd. 359 Comment
  CAS-BOT-BC172956  Toxicodendron diversilobum Peter H. Raven 1964-5-9 19041 Napa Along dirt road 2 miles west of Aetna Springs Comment
  HSC95661  Toxicodendron diversilobum Jonathon M. Irvine 1977-4-16 111 Napa Along Hwy. 128, 6.4 mi. SSW of Monticello Dam 183 Comment
  JEPS63912  Toxicodendron diversilobum W. L. Jepson 1939-9-12 19476 Napa w. of St. Helena (York Creek, Spring Mt.); Spring Mt., York Creek Comment
  SD106154  Toxicodendron diversilobum W. L. Jepson 1915-4-23 6236 Napa Hills east of St. Helana Comment
  UCD162096  Toxicoscordion fremontii Dylan O. Burge 2014-3-15 1494 Napa Mount Saint Helena. 760 Comment
  UCD169875  Toxicoscordion fremontii Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 716 Napa Knoxville Wildlife Area. 257 Comment
  UCD170293  Toxicoscordion fremontii Daniel Potter; Ninh Khuu, Kai Battenberg 2016-2-21 833 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 428 Comment
  UCD166640  Trichostema lanceolatum Jake Ruygt 2004-9-4 4660 Napa Pope Valley, 0.4 mi northeast of service station. 216 Comment
  JEPS112638  Trichostema laxum Jake Ruygt 1986-7-2 1854 Napa 4.5 miles N of Westgate Dr. on Atlas Peak Rd. 448 Comment
  UC1137621  Trichostema laxum B. Schreiber 1936-9-20 2350 Napa 5 mi S of Reiff 762 Comment
  UC615138  Trichostema laxum Beryl O. Schreiber 1936-9-20 2350 Napa 5 mi S of Reiff 762 Comment
  JEPS120348  Trichostema ruygtii Jake Ruygt 2004-8-21 4648 Napa Atlas Peak Road about 1/4 mile north of Hardman Ave., near Silverado C. C. Napa 7.5' Quad. Comment
  CHSC25145  Trientalis latifolia J. E. Beitler 1970-4-19 27 Napa St. Helena. Locally abundant in area directly between York Creek and gate at road to Spring Mountain Conversion dam, on Spring Mountain Road. Comment
  UCR25326  Trientalis latifolia John C. Roos 1939-4-29 290 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  RSA114033  Trientalis latifolia Peter H. Raven 1957-5-5 10782 Napa Hills at western edge of Calistoga. Comment
  UC1925874  Trifolium Ethel Crum 1931-1 1054 Napa Pope Valley Comment
  UC1925875  Trifolium Ethel Crum 1931-1 1065 Napa Pope Valley Comment
  UC1925878  Trifolium Ethel Crum 1931-1 1064 Napa Pope Valley Comment
  UC1925896  Trifolium Ethel Crum 1931-1 1046 Napa Four miles from Yountville. Comment
  UCD83437  Trifolium albopurpureum Jake Ruygt 1993-5-1 3235 Napa SW end of Cedar Creek Rd. 463 Comment
  HSC43999  Trifolium albopurpureum Robert M. Specht 1977-4-14 663 Napa N side of Nevada Creek 512 Comment
  UCD107349  Trifolium albopurpureum Freed W. Hoffman 1947-4-9 1361 Napa North Coast Ranges, Bucksnort Creek. Comment
  JEPS106689  Trifolium albopurpureum var. albopurpureum Jake Ruygt 1980-4-13 833 Napa Snell Valley 237 Comment
  UC457175  Trifolium albopurpureum var. albopurpureum David D. Keck 1931-4-2 1039 Napa 10 mi from Napa (between Wooden Valley and Monticello); east base of the Napa Range Comment
  UC764674  Trifolium albopurpureum var. albopurpureum R. F. Hoover 1941-4-26 4917 Napa betw Samula Springs and Walter Springs (Pope Creek) Comment
  UC16488  Trifolium albopurpureum var. dichotomum Edw. L. Greene 1894-6-17 Napa Calistoga Comment
  UC74964  Trifolium albopurpureum var. dichotomum C. F. Baker 1903-4-19 1983 Napa Calistoga Comment
  CDA10884  Trifolium bifidum G. F. Hrusa, M. Rejmanek 1993-5-15 10979 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD48025  Trifolium bifidum J. Pierner; S. Burgess, A. Hufton, A. Ryan, and B. Takahashi 2000-4-29 12 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 609 Comment
  JEPS65760  Trifolium bifidum var. bifidum E. K. Crum 1931-4-17 1055 c Napa 1/2 mi n P. O.; Pope Valley Comment
  UCD83438  Trifolium bifidum var. decipiens Jake Ruygt 2005-5-6 4815 Napa Newell Canyon Open Space; near Napa/Solano County line. 283 Comment
  OBI12704  Trifolium ciliolatum R. L. Hoover 1968-4-20 46 Napa On Howell Mtn rd, 2.6 mi NE of State Rte 29/128, on W side of rd Comment
  UCD33087  Trifolium dichotomum Beecher Crampton 1966-5-10 7712 Napa 4 miles NW of Moskowite Corner on State Hwy. 128. Comment
  RSA195292  Trifolium dichotomum Gilbert Muth 1967-4-16 642 Napa Snell Valley 183 Comment
  UCD35287  Trifolium dichotomum Beecher Crampton 1955-4-7 2439 Napa 1/4 mile northwest of Knoxville. Comment
  CDA31271  Trifolium dubium D. G. Kelch 2010-5-6 10 .177 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  UCD48980  Trifolium dubium Anne Mini; K. McBride, S. Snow, and K. Ehmsen 2001-4-14 8 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, Decker Canyon, along South Decker Canyon Rd., just N of jct with Cut-Off Rd., near drainage by dilapidated buldings. 152 Comment
  JEPS106808  Trifolium fucatum Jake Ruygt 1993-4-12 3200 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  JEPS65885  Trifolium fucatum Willis L. Jepson 1893-4-26 13742 Napa Rutherford Napa River Basin Comment
  UC16802  Trifolium fucatum Jepson 1894-4-24 Napa w St. Helena (trail to Cuax's Cabin) Comment
  UC16803  Trifolium fucatum Willis L. Jepson 1893-4-25 Napa trail to Cuax's Cabin Napa River Basin Comment
  JEPS106811  Trifolium glomeratum Jake Ruygt 1983-5-1 1449 b Napa Suscol Ridge east side of HWY 29 (221) 28 Comment
  UCD109759  Trifolium gracilentum R. Tofsrud 1951-5-26 s.n. Napa Enterprise School. Comment
  UCD38367  Trifolium gracilentum Beecher Crampton 1955-4-4 2385 Napa 7 miles east of Rutherford, above Conn Reservoir, eastern edge. Comment
  UC16633  Trifolium microcephalum H. P. Chandler 1900-5-7 Napa Rutherford Comment
  UCD170823  Trifolium microcephalum 2018-4-28 5 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 166 Comment
  UC160905  Trifolium microdon Joseph P. Tracy 1903-5-15 1840 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  UCD109177  Trifolium microdon R. Tofsrud 1951-5-26 s.n. Napa Strut Canyon Road. Comment
  UC1197498  Trifolium obtusiflorum Joseph P. Tracy 1902-5-15 1481 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mtn 365 Comment
  UCD35333  Trifolium obtusiflorum Beecher Crampton 1955-5-16 2795 Napa 8.5 miles west of Winters, just west of the Monticello Dam site. Comment
  JEPS106716  Trifolium oliganthum Jake Ruygt 1996-4-9 3568 Napa Wontrop Wildlife Sanctuary 542 Comment
  UC16686  Trifolium oliganthum Willis L. Jepson 1893-4-24 Napa e St. Helena (hills) Comment
  JEPS126125  Trifolium resupinatum Jake Ruygt 2006-5-18 5031 Napa Airport Road on south side, about 0.1 mile west of Highway 29. Cuttings Wharf 7.5' Qua. Comment
  UCD17991  Trifolium subterraneum Ellen Dean; with Plant Biology 102 class 2001-4-14 717 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along South Decker Canyon Rd., just down slope from jct. with Decker Ridge Rd. 335 Comment
  UCD48989  Trifolium subterraneum K. L. Wheeler; M. Bibbo, A. Koehmstedt, and T. Liebmann 2001-4-28 20 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam. E-facing slope on disturbed road cut at the top of South Decker Canyon Rd. just below jct with Decker Ridge Rd. 350 Comment
  JEPS106717  Trifolium tomentosum Jake Ruygt 1979-4-11 501 Napa .2 mile west of Suscol Ave. on Imola Ave 6 Comment
  UCD170428  Trifolium tomentosum Daniel Potter; Daniel McNair 2016-4-23 921 Napa Knoxville Wildlife Area, along the Zim Zim Falls trail. Comment
  UC1925877  Trifolium variegatum Ethel Crum 1931-1 1084 Napa Near Aetna Springs Comment
  JEPS4406  Trifolium variegatum var. melananthum W. L. Jepson 1893-4-24 13708 Napa hills e St. Helena (to Conn Valley Rd); Napa River Basin Comment
  HSC2110  Trifolium willdenovii C. B. Wolf 1928-5-3 1785 Napa 5 mi. N of Calistoga, on Mt. St. Helena Grade Comment
  JEPS106753  Trifolium willdenovii Jake Ruygt 1995-4-17 3432 Napa end of Niebaum Rd., Rutherford. 82 Comment
  JEPS4145  Trifolium willdenovii Willis L. Jepson 1893-5-2 13673 Napa e Calistoga (Pope Valley grade); Napa River Basin Comment
  JEPS4401  Trifolium willdenovii Willis L. Jepson 1893-4-24 13672 Napa e St. Helena (hills, to Conn Valley); Napa River Basin Comment
  RSA10702  Trifolium willdenovii Carl B. Wolf 1928-5-3 1785 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  POM18839  Trifolium willdenovii C. F. Baker 1903-4-19 1992 Napa Calistoga. Comment
  UCD109882  Trifolium willdenovii R. L. Smith 1948-5-1 s.n. Napa Northern part of county, Monticello Valley. Comment
  UCD109891  Trifolium willdenovii R. Tofsrud 1951-5-20 s.n. Napa Yontville cemetery. Comment
  UCD20029  Trifolium willdenovii C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1209 Napa Junction of Glass Mountain Road and Silverado Trail. Comment
  UCD167155  Trifolium wormskioldii Jake Ruygt 2015-5-19 6103 Napa Atlas Peak Road Circle R (S) Ranch. 432 Comment
  JEPS47270  Trillium albidum W. L. Jepson 1910-3-28 4024 Napa sw of Calistoga (Rebecca Ranch grade); Rebecca Ranch grade Comment
  UC4018  Trillium albidum Willis L. Jepson 1893-5-8 Napa Howell Mt. Comment
  CAS-BOT-BC520830  Trillium albidum Peter H. Raven 1953-3-29 5204 Napa 0.5 mi. s. of Calistoga 121 Comment
  UC1364377  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-6 573 Napa just s.w. Calistoga (0.6 mi. w. of CA Hwy. 29, near Diamond Mt. Creek below Diamond Mt. Rd.) Comment
  CAS-BOT-BC521016  Trillium chloropetalum var. giganteum Carl B. Wolf 1928-5-3 1833 Napa Base of Mt. St. Helena Comment
  CAS-BOT-BC521018  Trillium chloropetalum var. giganteum Elsa G. Ruckert 1960-3-26 43 Napa 6495 Dry Creek Road; Field to right of private road leading into property. 365 Comment
  CAS-BOT-BC521019  Trillium chloropetalum var. giganteum Alice Eastwood 1918-5-1 6859 Napa Mt St. Helena Comment
  UCD75833  Triodanis biflora Jake Ruygt 2005-6-1 4893 Napa Blue Ridge, about 1 mile north of Mays Flat. 402 Comment
  JEPS74865  Triphysaria eriantha subsp. eriantha T. I. and F. M. Chuang 1975-5-4 7510 Napa 5.7 mi e Pope Valley; e of Pope Valley Comment
  JEPS10402  Triphysaria eriantha subsp. eriantha W. W. Mott 1915-4-26 Napa hills sw Napa (Napa); , hills sw Comment
  JEPS10403  Triphysaria eriantha subsp. eriantha W. W. Mott 1915-4-26 2 Napa hills w Napa; hills w Napa Comment
  JEPS110674  Triphysaria pusilla Jake Ruygt 1981-4-27 1006 Napa Milton Rd. west of yacht club 0 Comment
  UC1301205  Triphysaria pusilla Helen K. Sharsmith 1963-4-20 5327 Napa off of Kelly Road 4 mi s Napa; San Francisco Bay Region 45 Comment
  JEPS10434  Triphysaria versicolor subsp. faucibarbata W. L. Jepson 1922-4-21 9624 Napa Napa Jct 22 Comment
  POM262797  Trisetum canescens J. C. Roos 1939-5-7 297 Napa Angwin, Napa Range Comment
  UC183045  Trisetum canescens J. P. Tracy 1902-5-15 1459 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moore's Creek, Howell Mountain 487 Comment
  UCR24352  Trisetum canescens John C. Roos 1939-5-7 297 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UC3281  Triteleia hyacinthina Willis L. Jepson 1884-5-4 Napa Little Oak Comment
  UC657698  Triteleia hyacinthina M. Wiesendanger 1928-4-5 867 Napa Calistoga Comment
  UCD139308  Triteleia hyacinthina M. Wiesendanger 1928-4-5 867 Napa Calistoga. Comment
  UCD83726  Triteleia hyacinthina Surene Foutouhi; with E. Dean, Yuan-Chun Han 2010-5-7 5 Napa Along Wooden Valley Road; East side of the road; Lamb Vineyard Property. 198 Comment
  UCD139376  Triteleia laxa A. Amezcua 1995-5-26 24 Napa 300 m west of Berryessa - Knoxville Road approximately 3 km north of Spanish Flat Resort. 200 Comment
  JEPS110928  Triteleia laxa Jake Ruygt 2003-5-5 4521 Napa Berryessa-Knoxville Road about 1 mi S of Toll Canyon trail 182 Comment
  RSA0009491  Triteleia laxa Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  UCD16047  Triteleia laxa C. L. Hallock; C. Kennedy, L Condon, N. Strahan, R. Flannery 2000-4-22 13 Napa McLaughlin Reserve, North of Knoxville-Berryessa Rd., along old Knoxville Rd., just S of site of old town of Knoxville, W side of road. 38 deg. 49' 38.7' N, 122 deg. 20' 22.4' W; 420 m. Grassland, moist reddish-brown clay soil, E-facing slope. Herb from bulb, 2-6 dm tall, flowers lavendar. Comment
  UCSB826  Triteleia laxa Keator, Glenn 1958-6-16 Napa Just east of Lake Hennessy, Napa range Comment
  UC15022  Triteleia lugens J. P. Tracy 1902-5-15 1450 Napa 3-4 mi e Angwuns (head of Moore's Creek); Howell Mtn 457 Comment
  UC1561245  Triteleia peduncularis Barbara Ertter with Annetta Carter 1989-5-28 8515 Napa 2 mi se Lake Co. line (on Berryessa Rd., near Knoxville) 609 Comment
  UCD160647  Triteleia peduncularis Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8733 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 253 Comment
  SEINET12049805  Triteleia peduncularis F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -325 Napa along Butts Canyon Rd near junction with Snell Valley Rd, to Berryessa Estates along Butts Creek 250 Comment
  UCD35479  Tropidocarpum gracile Beecher Crampton 1957-4-15 3931 Napa Vaca Mtns., east slope of Wragg Canyon, Hwy. 128. Comment
  UCD132723  Ulmus minor Ramona Robison 2012-4-26 s.n. Napa Bale Grist Mill State Historic Park. Growing near Grist Mill. 106 Comment
  CDA21069  Umbellularia californica G. F. Hrusa, G. L. Stebbins 1993-10-3 11461 Napa Sugarloaf Ridge State Park. Trail to Bald Mountain. Midway, 518 Comment
  JEPS36213  Uropappus lindleyi W. L. Jepson 1923-4-29 9891 Napa St. Helena Comment
  JEPS129059  Vancouveria planipetala Jake Ruygt 1979-5-29 640 Napa 2.7 miles north of Mt. Veeder Road on Redwood Road. Sonoma 7.5' Quad. Comment
  JEPS11172  Verbascum blattaria W. L. Jepson 1936-6-2 17607 Napa near bridge on road to Sanitarium St. Helena (banks of Napa River); banks of Napa River Comment
  JEPS11173  Verbascum blattaria W. L. Jepson 1936-6-2 17607 Napa near bridge on road to Sanitarium St. Helena (banks of Napa River); , St. Helena Comment
  JEPS110893  Verbena lasiostachys var. lasiostachys Jake Ruygt 1988-6-4 2209 Napa south slope of Mt. St. Helena 694 Comment
  JEPS110605  Veronica catenata Jake Ruygt 2004-6-12 4616 Napa 3/4 mi E of Blue Monday Mine 335 Comment
  JEPS129174  Vicia americana Jake Ruygt 2015-3-16 6042 Napa Sutro Ranch, Atlas Peak. Yountville 7.5' Quad. Comment
  UCD83427  Vicia americana subsp. americana Jake Ruygt 1987-5-9 1981 b Napa N of Catalpa Drive, Circle Oaks. 396 Comment
  RSA0015487  Vicia americana subsp. americana Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  SBBG3867  Vicia americana subsp. americana H. and M. Dearing 1939-5-1 3247 Napa Spring Mtn Grade Comment
  UCD83428  Vicia americana subsp. americana Jake Ruygt 1995-5-8 3476 Napa Taylor Property, 1.5 mi S of boatramp on Sage Canyon Rd. 402 Comment
  JEPS106540  Vicia sativa subsp. nigra Jake Ruygt 1990-4-21 2501 Napa Giles Mead ranch, Atlas Peak Rd. 429 Comment
  UCD49040  Vicia sativa subsp. nigra L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 4 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along stream that runs along the East side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd. 152 Comment
  SEINET9330677  Vicia villosa Unknown 1996-3-1 29 Napa On NE side of Knoxville Road on SW side of Lake Bereyessa. Disturbed, roadside area, full sun, little moisture, dominant species Vicia villosa. Comment
  UC1177460  Vicia villosa subsp. varia John Thomas Howell 1945-6-18 20966 Napa Mt. St. Helena; near summit of highway Comment
  JEPS110806  Viola douglasii Jake Ruygt 1978-3-12 239 Napa .6 mile NE of Butts Canyon on Snell Valley Road 195 Comment
  JEPS110807  Viola douglasii Jake Ruygt 1991-4-20 2632 Napa Mead Ranch, Atlas Peak Rd. 469 Comment
  UCD15014  Viola douglasii Craig Homar 1977-4-8 7 Napa Along Berryessa-Knoxville Road, 34 miles west of Winters. Comment