38.56600 38.66600 -122.47830 -122.37830 UC/JEPS: Consortium Search Results
Search Results — 1039 specimen records retrieved (1039 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  UCD148566  Acer macrophyllum Jake Ruygt 1976-4-15 9 Napa Napa County; 0.5 miles north of Angwin on Howell Mt. Road. 512 Comment
  CAS-BOT-BC29758  Achyrachaena mollis M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  UCD148098  Achyrachaena mollis Jake Ruygt 1977-4-24 194 Napa Napa County; Butts Canyon Rd. west of Pope Valley Elementary School. 213 Comment
  UCR24355  Achyrachaena mollis John C. Roos 1939-4-15 285 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  JEPS126082  Acmispon americanus var. americanus Jake Ruygt 1998-6-16 4029 Napa North of Barnett Roas, Pope Valley. Saint Helena 7.5' Qua. Comment
  UCD149694  Acmispon parviflorus Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  JEPS44789  Adenostoma fasciculatum W. L. Jepson 1915-12-6 6584 Napa Howell Mt. Comment
  JEPS44791  Adenostoma fasciculatum W. L. Jepson 1904-6-3 2448 Napa Howell Mt. Comment
  JEPS46395  Adenostoma fasciculatum W. L. Jepson 1896-2-23 Napa Howell Mt. Comment
  SEINET265711  Adenostoma fasciculatum Royal D. Suttkus 1967-6-24 67- 27 -1 Lake 10.3 miles N. of Pope Valley. Comment
  SEINET3077392 Image available Adenostoma fasciculatum Royal D. Suttkus 1967-6-24 67- 27 -1 Lake 10.3 miles N of Pope Valley. Comment
  CAS-BOT-BC65667  Adiantum jordanii Carl B. Wolf 1928-5-3 1843 Napa base of Mt. St. Helena Comment
  CAS-BOT-BC202655  Aesculus californica H. E. McMinn 1922-6-8 171 Napa On summit of Howell Mt. Comment
  CAS-BOT-BC29640  Agoseris grandiflora var. grandiflora Rimo Bacigalupi 1928-6-20 1863 Napa Howell Mt, 10 miles W of St Helena Comment
  UC127180  Agoseris grandiflora var. grandiflora Harley P. Chandler Sep 7 1906-Sep 14 1906 7153 Napa Alta Loma Ranch Alta Loma Ranch 487 Comment
  UC29368  Agoseris grandiflora var. grandiflora Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin, Howell Mt. Comment
  JEPS104511  Agoseris heterophylla Jake Ruygt 1994-5-17 3378 Napa Barnett Road, Pope Valley, Juliana Vineyards. 252 Comment
  JEPS104535  Agoseris heterophylla Jake Ruygt 1996-5-13 3673 Napa Wontrop Wildlife Santuary, Hardin Road, Pope Valley 365 Comment
  JEPS104537  Agoseris heterophylla Jake Ruygt 1993-4-12 3197 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  UCD63192  Agoseris heterophylla Jake Ruygt 1991-5-18 2675 Napa Fawn Lake, Friesen's Lakes, Angwin. 597 Comment
  JEPS71139  Agrostis pallens W. L. Jepson 1936-7-2 17642 Napa Angwin Meadow Napa Range, Howell Mt. Comment
  UC1158113  Aira caryophyllea Joseph P. Tracy 1950-5-23 18668 Napa La Jota Plateau Northern Coast Ranges, Howell Mountain 518 Comment
  JEPS76078  Aira elegantissima W. L. Jepson 1938-5-18 18801 Napa slope above St. Helena Sanitarium (Howell Mountain); Howell Mountain Comment
  JEPS76079  Aira elegantissima W. L. Jepson 1938-5-18 18801 Napa slope above St. Helena Sanitarium (Howell Mountain); Howell Mountain Comment
  RSA123594  Allium amplectens Milo S. Baker 1932-4-26 5963 Napa Monticello Road near Pope Valley. 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
  JEPS47614  Allium falcifolium Mrs. D. O. Hunt 1909-4-16 Napa Pope Valley Comment
  JEPS47616  Allium falcifolium Miss Saidee Wallace 1909-4-23 Napa Pope Valley Comment
  JEPS110933  Allium unifolium Jake Ruygt 1996-5-13 3675 Napa Wantrop Wildlife Sanctuary, Hardin Road, Pope Valley 438 Comment
  UCD21722  Allium unifolium Robin McMaster 1972-4-25 82 Napa Pope Valley. Comment
Read comments
Dec 18 2011
  JEPS69369  Allophyllum divaricatum W. L. Jepson 1893-6-26 15060 Napa Howell Mt., Angwin's Meadows Comment
  UC23568  Allophyllum divaricatum Willis L. Jepson 1893-1 Napa Angwin's meadows Howell Mt.; Napa R. Basin, , Angwin's meadows Comment
  POM262798  Allotropa virgata J. C. Roos 1939-5-7 298 Napa Ink Grade near Angwin, Napa Range. Comment
  RSA262367  Allotropa virgata Gilbert Muth 1971-5-20 1413 Napa 0.5 mile north on Ink Grade Road from Howell Mountain Road, Angwin. 518 Comment
  UCD117325  Allotropa virgata Gilbert Muth 1971-5-20 s.n. Napa 1/2 mile down Ink Grade Road from White Cottage Road, Angwin. Comment
  JEPS123022  Alopecurus pratensis Jake Ruygt 1998-4-18 3910 b Napa Pope Canyon Road north of Hardin Road intersection. Quad: Saint Helena. Comment
  JEPS123019  Alopecurus saccatus Jake Ruygt 1996-5-13 3664 Napa 0.9 mile south of Pope Canyon Road on Hardin Road. Quad: Saint Helena. Comment
  JEPS54292  Amaranthus albus Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  UC12076  Amelanchier alnifolia var. semiintegrifolia Willis L. Jepson 1893-5-8 Napa near Angwin's (Howell Mt); Napa River Basin, Howell Mt. Comment
  CAS-BOT-BC136749  Amelanchier utahensis H. E. McMinn 1922-6-8 172 Napa Summit of Howell Mt. Comment
  JEPS45495  Amelanchier utahensis Willis L. Jepson 1893-5-8 32 b Napa Howell Mt.; Napa River Basin Comment
  JEPS120342  Ammannia robusta Jake Ruygt 2005-10-8 4947 Napa Ink Grade near Butts Canyon Road. Aetna Springs 7.5' Quad. Comment
  CAS-BOT-BC177209  Amorpha californica var. napensis C. H. M. 1907-7-10 s.n. Napa Howell Mt. Comment
  JEPS35498  Amorpha californica var. napensis W. L. Jepson 1913-4-15 5309 Napa Howell Mt. 548 Comment
  POM262978  Amorpha californica var. napensis J. C. Roos 1939-4-29 289 Napa Angwin, Howell Mountain Comment
  UC13276  Amorpha californica var. napensis State Survey 2648 Napa on hills near Pope Valley Comment
  UCR23952  Amorpha californica var. napensis John C. Roos 1939-4-29 289 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  CAS-BOT-BC64144  Ancistrocarphus filagineus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS104503  Ancistrocarphus filagineus Jake Ruygt 1993-4-12 3198 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  UCD149686  Angelica lineariloba Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  JEPS16002  Angelica tomentosa Willis L. Jepson 1896-2-23 14263 Napa Napa River Basin, Howell Mountain, beyond Angwin's Howell Mountain; Napa River Basin, Howell Mountain 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
  JEPS83302  Antirrhinum cornutum David M. Thompson 1983-8-11 336 Napa 1.9 mi from Barnett Road start (just n of Pope Creek, at an area reached by traveling private vineyard roads at end of Barnett Road); Aetna Springs Quad. (7.5', 1958) 201 Comment
  JEPS12048  Antirrhinum kelloggii Peter H. Raven 1955-4-9 8269 Napa w slope Howell Mountain 457 Comment
  HSC83249  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum D. M. Thompson 1983-6-16 335 Napa Steep banks along valley of Pope Creek at an area reached by traveling private vineyard roads at end of Barnett Rd., 1.9 mi. from start 195 Comment
  JEPS83369  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-8-11 335 Napa 1.9 mi from Barnett Road start (along valley of Pope Creek at an area reached by traveling private vineyard roads); Aetna Springs Quad. (7.5', 1958) 195 Comment
  JEPS5286  Antirrhinum virga Willis L. Jepson 1893-6-26 21298 Napa Howell Mt. Napa River Basin (above Toland House) Comment
  UC449669  Apocynum androsaemifolium unknown 1910-7-27 Napa near Angwin Angwin Comment
  POM161353  Apocynum androsaemifolium subsp. pumilum Rimo Bacigalupi 1928-6-20 s.n. Napa Napa County: Howell Mt, 10 miles W of St Helena Comment
  CAS-BOT-BC397795  Aquilegia formosa Rimo Bacigalupi 1928-6-20 1865 Napa Howell Mt, 10 miles west of St Helena Comment
  POM161354  Aquilegia formosa var. truncata Rimo Bacigalupi 1928-6-20 186 Napa Howell Mt, 10 miles W of St Helena Comment
  A343965  Arbutus menziesii W. L. Jepson 1913-4-15 5308 Unknown Howell Mt. 762 Comment
  UCD117478  Arbutus menziesii L. Flaherty 1991-4-4 s.n. Napa Near Los Posadas. Comment
  UCSB19044  Arbutus menziesii 1965-4-13 Napa 3 miles W of Pope Valley on the road between Pope Valley and Angwin Comment
  SEINET3349540  Arceuthobium occidentale R. L. Mathiasen 1238 Unknown 1 km W of side road from Butts Canyon Rd. 290 Comment
  A350121  Arctostaphylos canescens W. L. Jepson 1913-4-15 5311 Unknown Howell Mt., La Jota Plateau Comment
  GH350098  Arctostaphylos canescens W. L. Jepson 1913-4-15 5311 Unknown Howell Mt., La Jota Plateau Comment
  JEPS38624  Arctostaphylos canescens W. L. Jepson 1913-4-15 5311 Napa La Jota Plateau Howell Mountain Comment
  CAS-BOT-BC24022  Arctostaphylos canescens subsp. canescens C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC24023  Arctostaphylos canescens subsp. canescens C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  UCR23644  Arctostaphylos glandulosa John C. Roos 1939-4-16 276 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  CAS-BOT-BC24862  Arctostaphylos glandulosa subsp. cushingiana Gertrude Raven Hardman 1968-2-1 s.n. Napa Pope Valley Comment
  CAS-BOT-BC24863  Arctostaphylos glandulosa subsp. cushingiana Gertrude Raven Hardman 1967-12-25 s.n. Napa Pope Valley Comment
  JEPS49536  Arctostaphylos glandulosa subsp. glandulosa W. L. Jepson 1938-9-28 19043 Napa La Jota Mesa, Howell Mt. Comment
  GH350609  Arctostaphylos manzanita W. L. Jepson 1896-2-22 Unknown Howell Mt., beyond Angwin's Comment
  JEPS46407  Arctostaphylos manzanita unknown 1896-2-23 Napa Howell Mt. Comment
  OBI14645  Arctostaphylos manzanita H. E. McMinn 1936-4-4 4390 Napa Howell Mt 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-BC38769  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  JEPS106414  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 1977-1-9 122 Napa .15 miles west of Deer Park Rd. on Hill Avenue 548 Comment
  JEPS122812  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-21 5107 Napa Pope Valley Road just north of tributary of Pope Creek. QUAD: Aetna Springs. Comment
  JEPS38708  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1898-1-4 14715 Napa Howell Mt. Howell Mt. (near type locality) Comment
  SBBG19111  Arctostaphylos manzanita subsp. manzanita E. R. Blakley 1956-12-23 2035 Napa 5 mi S of Pope Valley 243 Comment
  A350695  Arctostaphylos mariposa W. L. Jepson 1916-8-6 6826 Unknown Howell Mt. Comment
  A362187  Arctostaphylos stanfordiana W. L. Jepson 1896-2-22 Unknown Sea Jota Plateau, Howell Mt. Napa River Basin Comment
  CAS-BOT-BC43827  Arctostaphylos stanfordiana C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC43832  Arctostaphylos stanfordiana H. E. McMinn 1922-6-8 173 Napa Howell Mt. Comment
  CAS-BOT-BC43836  Arctostaphylos stanfordiana Willis L. Jepson 1896-2-22 s.n. Napa La Jota Plateau, Howell Mt., Napa River Basin Comment
  CAS-BOT-BC43847  Arctostaphylos stanfordiana Willis L. Jepson 1896-2-23 s.n. Napa La Jota Plateau, Howell Mt., Napa River Basin Comment
  GH362183  Arctostaphylos stanfordiana W. L. Jepson 1936-12-7 17992 Unknown Howell Mt. Comment
  GH362186  Arctostaphylos stanfordiana W. L. Jepson 1896-2-23 Unknown Sea Jota Plateau, Howell Mt. Napa River Basin Comment
  JEPS38675  Arctostaphylos stanfordiana W. L. Jepson 1915-12-6 6586 Napa Howell Mt. Napa Range Comment
  JEPS38676  Arctostaphylos stanfordiana Willis L. Jepson 1896-2-23 14723 Napa La Jota Plateau Napa Range, Napa River Basin, Howell Mt. Comment
  JEPS38679  Arctostaphylos stanfordiana W. L. Jepson 1913-4-15 5317 Napa Howell Mt. Napa Range 609 Comment
  JEPS38680  Arctostaphylos stanfordiana W. L. Jepson 1916-8-6 6827 Napa summit Napa Range, Howell Mt. Comment
  JEPS58788  Arctostaphylos stanfordiana W. L. Jepson 1938-9-28 19041 Napa La Jota Mesa Howell Mt. Comment
  UC127170  Arctostaphylos stanfordiana Harley P. Chandler Sep 7 1906-Sep 14 1906 7118 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC205100  Arctostaphylos stanfordiana Katharine Brandegee Napa Anguins Comment
  UCR23649  Arctostaphylos stanfordiana John C. Roos 1939-1-21 300 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  POM263487  Arctostaphylos stanfordiana subsp. stanfordiana J. C. Roos 1939-1-21 300 Napa Angwin. 366 Comment
  RSA181909  Arctostaphylos stanfordiana subsp. stanfordiana W. L. Jepson 1936-12-7 17992 Napa Howell Mt. Comment
  RSA181955  Arctostaphylos stanfordiana subsp. stanfordiana W. L. Jepson 1915-12-6 6586 Napa Howell Mt. Comment
  SEINET265724 Image available Arctostaphylos viscida Royal D. Suttkus 1967-6-24 67- 27 -3 Lake 10.3 miles N of Pope Valley. Comment
  SEINET3094067 Image available Arctostaphylos viscida Royal D. Suttkus 1967-6-24 67- 27 -3 Lake 10.3 miles N of Pope Valley. Comment
  OBI14487  Arctostaphylos viscida subsp. pulchella H. E. McMinn 1936-4-4 4391 Lake 14 mi E of middletown, toward Howell mountain Comment
Read comments
Oct 3 2014
  RSA388862  Arctostaphylos viscida subsp. viscida R. W. Brooks 1975-4-26 54 Napa 12 miles north from State Highway 128, Pope Valley. 762 Comment
  CAS-BOT-BC400455  Aristolochia californica Mrs. H. C. Cantelow 1936-3-22 1123 Napa Howell Mt. Comment
  JEPS123016  Arrhenatherum elatius Jake Ruygt 1991-6-10 2721 Napa Lake Henne, Friesen's Lakes. Quad: Saint Helena. Comment
  UC6173  Asarum caudatum Willis L. Jepson 1893-5-8 Napa Howell Mountain, Napa River Basin Comment
  UCD148095  Asclepias cordifolia Jake Ruygt 1994-4-26 3359 Napa ridge in Pope Valley (Juliana Vineyard); north of Barnett Rd. 256 Comment
  JEPS104556  Asclepias eriocarpa Jake Ruygt 1979-6-18 707 Napa .3 miles east of Butts Canyon Rd. on Aetna Springs Rd. 216 Comment
  JEPS104578  Asclepias eriocarpa Jake Ruygt 1996-7-13 3767 c Napa south of intersection Butts Can. Rd and James Cr. Rd.(Temple) 210 Comment
  SBBG230  Aspidotis californica E. R. Blakley 1956-12-23 2033 Napa Bells Cyn, 2 mi W of Angwin 457 Comment
  CAS-BOT-BC180463  Astragalus breweri Robert F. Hoover 1941-4-26 4920 Napa Between Walter Springs and Pope Valley Comment
  JEPS107260  Astragalus breweri Jake Ruygt 1993-4-12 3195 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  UC764693  Astragalus breweri R. F. Hoover 1941-4-26 4920 Napa between Walter Springs and Pope Valley; between Walter Springs and Pope Valley Comment
  JEPS107251  Astragalus gambelianus Jake Ruygt 1993-4-12 3196 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  CAS-BOT-BC193128  Astragalus rattanii var. jepsonianus Baker 1938-4-24 8938 Napa Near Pope Valley Comment
  UC604118  Astragalus rattanii var. jepsonianus Baker 1938-4-29 8938 Napa near Pope Valley; North Bay Counties, near Pope Valley Comment
  CAS-BOT-BC17532  Athysanus pusillus Carl B. Wolf 1928-5-3 1831 Napa Base of Mount St. Helena. Comment
  RSA591760  Athysanus pusillus J. C. Roos 1939-4-18 277 Napa Snell Valley, Pacific Union College, Angwin. Comment
  UCR23605  Athysanus pusillus John C. Roos 1939-4-18 277 Napa North Coast Range, Pacific Union College; Angwin 549 Comment
  POM290480  Avena fatua Lyman Benson 1931-2-26 2601 Napa Base Mt. St. Helena; Mayacamas; Napa Valley 244 Comment
  CLARK-A1528-1269  Avena sativa John C. Roos 1939-4-16 257 Napa Angwin Comment
  CDA11627  Baccharis salicifolia G. F. Hrusa, S. Larson 1995-4-1 12055 Napa North Coast Biodiversity Arena; along Chiles Valley-Pope Valley Rd. approx 2 miles E of Lake Hennessey. Comment
  CDA11618  Barbarea orthoceras G. F. Hrusa, G. L. Stebbins 1994-3-11 11601 Napa North Coast Biodiversity Arena; Ink Grade, approx. 2 m. NE of Angwin. Comment
  GH378735  Barbarea orthoceras W. L. Jepson 1924-4-6 10319 Unknown Howell Mt. 914 Comment
  OBI15181  Barbarea orthoceras R. L. Hoover 1968-4-20 57 Napa In field NE of jctn of Aetna Springs, Pope Valley, and Butts Cyn rds Comment
  UCD114278  Barbarea orthoceras G. F. Hrusa; G. L. Stebbins 1994-3-11 11601 Napa Ink Grade, approx. 2 m. NE of angwin. 450 Comment
  JEPS76094  Briza minor W. L. Jepson 1938-5-25 18857 Napa Howell Mt. Napa Range (meadow on road into Bell Canyon) 579 Comment
  OBI22481  Briza minor R. L. Hoover 1968-4-20 61 Napa In field NE of jctn of Aetna Springs, Pope Valley and Butts Cyn rd Comment
  UC187258  Briza minor Louise Martin 1902-5-15 1445 Napa 3-4 mi e Angwin's (head of creek); Howell Mountain, Moore's Creek 396 Comment
  UCD57406  Briza minor Joseph P. Tracy 1950-5-23 18676 Napa Northern Coast Ranges. Howell Mountain. At head of Moore's Creek, 3-4 miles east of Angwin's. La Jota Plateau. 518 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
  UCD148734  Brodiaea leptandra Jake Ruygt 1979-7-28 757 Napa Napa County; 0.9 mile east of Cold Springs Rd. on Los Posados Rd. 521 Comment
  UCD77156  Brodiaea leptandra Robert E. Preston 2002-6-17 1820 Napa Ca. 1.6 mi sw of Pope Valley, along Ink Grade, 0.36 mi n of its jct with Howell Mtn Rd. 518 Comment
  UCD77197  Brodiaea leptandra Robert E. Preston 2004-6-26 2265 Napa Angwin, along Las Posadas Rd, ca. 1.1 mi from Howell Mountain Rd 512 Comment
  JEPS76092  Bromus carinatus var. carinatus W. L. Jepson 1938-5-24 18849 Napa Plateau n of Four Corners (Napa Range, Howell Mountain); Napa Range, Howell Mountain 762 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
  UCD58447  Bromus commutatus Beecher Crampton 1962-5-16 6425 Napa 1 mile E of Aetna Springs. Comment
  HSC26182  Bromus hordeaceus J. P. Smith, J. O. Sawyer 1970-5-17 3777 Napa 3 mi. S of Pope Valley Comment
  JEPS123009  Bromus hordeaceus Jake Ruygt 1977-4-24 195 Napa West of Pope Valley Elementary School on Butts Canyon Road. Quad: Saint Helena. Comment
  JEPS75643  Bromus laevipes W. L. Jepson 1936-5-31 17567 Napa Napa Range, Howell Mountain Howell Mountain; Napa Range, Howell Mountain Comment
  HSC26167  Bromus madritensis subsp. madritensis J. P. Smith, J. O. Sawyer 1970-5-17 3779 Napa 3 mi. S of Pope Valley Comment
  POM262786  Bromus rubens J. C. Roos 1939-4-28 261 Napa Angwin, Howell Mtn. Comment
  JEPS123002  Bromus sterilis Jake Ruygt 1994-4-26 3361 Napa Pope Valley (Juliana Vineyard); north of Barnett Road. Quad: Aetna Springs. Comment
  UCD81810  Bromus sterilis Ellen Dean; Stephen Rae 2009-4-21 5437 Napa Along Friesen Lakes Road, NW of Anguin. 563 Comment
  JEPS120388  Callitriche marginata Jake Ruygt 1996-5-19 3710 Napa West of Barnett Road near Burton Creek, (Peju Pr) Pope Valley Comment
  POM216219  Calochortus amabilis D. D. Keck 1933-5-28 2330 Napa Howell Mtn., N side, 1 mi above Pope Valley P.O. Comment
  POM263156  Calochortus amabilis J. C. Roos 1939-4-18 278 Napa Howell Mountain, Angwin. Comment
Read comments
Feb 15 2006
  RSA377263  Calochortus amabilis Robert Gustafson, Don Reynolds 1983-6-7 2732 Napa Howell Mtn. Rd., about 1 1/2 mi N of Angwin. 488 Comment
  RSA450207  Calochortus amabilis J. C. Roos 1939-3-27 305 Napa Snell Valley, Pacific Union College, Angwin Comment
  UC130972  Calochortus amabilis Katharine Brandegee 1909-6-1 Napa Pope Valley Grade from Calistoga Comment
  UC527845  Calochortus amabilis R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6667 Napa 6 mi ne Pacific Union College (on road to Aetna Springs); Howell Mt. Comment
  UCD139478  Calochortus amabilis H. Popenoe 1949-5-1 19 Napa one mile from Pope Valley on road to St. Helena. 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
  UC1876213  Calycadenia fremontii Gerald D. Carr 1972-8-21 729 Napa 3.0 mi NE of Chiles and Pope Valley Rd. on Pope Canyon Rd. 182 Comment
  JEPS38540  Calycadenia multiglandulosa W. L. Jepson 1916-8-6 6832 Napa Howell Mt. Comment
  CAS-BOT-BC270829  Calycadenia pauciflora Gerald D. Carr 1972-8-21 729 Napa 3.0 miles NE of Chiles and Pope Valley Road on Pope Canyon Road 182 Comment
  JEPS38539  Calycadenia pauciflora W. L. Jepson 1916-8-6 6831 Napa Howell Mt. Comment
  RSA255520  Calycadenia pauciflora Gerald D. Carr 1972-8-21 729 Napa 3 miles NE of Chiles and Pope Valley Road on Pope Canyon Road 183 Comment
  UCD129846  Calycadenia pauciflora Gerald D. Carr 1972-8-21 729 Napa 3.0 miles northeast of Chiles and Pope Valley Road on Pope Canyon road. 182 Comment
  HSC65076  Calycanthus occidentalis J. P. Smith, J. O. Sawyer 1970-5-17 3771 Napa 3 mi. S of Pope Valley Comment
  LA204508  Calycanthus occidentalis Joseph Andorfer Ewan; 1934-4-30 8850 Napa near White Cottages below Pope Valley Comment
  RSA23335  Calycanthus occidentalis Joseph A. Ewan 1934-4-30 8850 Napa Near White Cottages below Pope Valley. Comment
  RSA602914  Calycanthus occidentalis Joseph A. Ewan 1934-4-30 8850 Napa Near White Cottages below Pope Valley. Comment
  SEINET3153864  Calycanthus occidentalis H. P. Chandler 1906-9-7 713 Napa Alta Loma ranch 549 Comment
  UC126481  Calycanthus occidentalis Harley P. Chandler Sep 7 1906-Sep 14 1906 7133 Napa Alta Loma Ranch; Howell Mountain 487 Comment
  UCD137917  Calycanthus occidentalis J. P. Smith; J. O. Sawyer 1970-5-17 3771 Napa 3 miles south of Pope Valley. Comment
  UCR74386  Calycanthus occidentalis G. Fred Hrusa 1988-5-12 5601 Napa North Coast Range, Pope Creek, c. 2 mi east of jct of Pope Valley Rd. and Chiles Valley Rd. 244 Comment
  CAS-BOT-BC221555  Calystegia collina subsp. collina R. K. Brummitt; A. Wolf; R. W. Howe 1998-5-15 19848 Napa 10 km NE of St. Helena, on Chiles and Pope Valley Road 300 Comment
  JEPS31603  Calystegia collina subsp. collina W. L. Jepson 1938-5-24 18841 Napa Howell Mtn. Comment
  UC1794972  Calystegia collina subsp. collina R. K. Brummitt, A. Wolf, and R. W. Howe 1998-5-15 19848 Napa 10 km NE of St. Helena, on Chiles and Pope Valley Road 300 Comment
  OBI15298  Calystegia purpurata subsp. purpurata R. L. Hoover 1968-4-20 56 Napa NE of jctn of Aetna Springs, Pope Valley, and Butts Cayn roads Comment
  CAS-BOT-BC224342  Calystegia subacaulis subsp. subacaulis Rimo Bacigalupi 1928-6-20 1859 Napa Howell Mt 10 miles west of St Helena Comment
  JEPS122732  Camissonia contorta Jake Ruygt 1991-5-4 2637 Napa Between Fawn Lake and Granite Lake Friesen's Lakes. Quad: St. Helena. Comment
Read comments
Jun 18 2018
  JEPS31722  Camissonia contorta Willis L. Jepson 1893-6-26 14478 Napa Howell Mt. Napa River Basin Comment
  UCD74395  Cardamine californica Jake Ruygt 2000-3-18 4220 Napa Pope Valley; Butts Canyon Rd. south of Aetna Springs Rd. 211 Comment
  GH379003  Cardamine californica var. sinuata W. L. Jepson 1896-2-23 Unknown Pope Valley Grade, Howell Mt. Comment
  CAS-BOT-BC17797  Carex amplifolia Hugh Leech 1972-11-6 s.n. Napa Napa Range. 2.5 miles north of Angwin. Comment
  JEPS63517  Carex barbarae W. L. Jepson 1936-7-2 17664 Napa Angwin Meadow, Howell Mountain, Napa Range Comment
  CAS-BOT-BC18903  Carex densa J. W. Stacey 1933-5-15 s.n. Napa Howell Mountain. Comment
  JEPS63518  Carex densa W. L. Jepson 1936-7-2 17640 Napa Angwin Meadow, Howell Mountain Napa Range Comment
  UCD81809  Carex densa Ellen Dean; Stephen Rae 2009-4-21 5436 Napa Along Friesen Lakes Road, NW of Anguin. 563 Comment
  CAS-BOT-BC19983  Carex feta Peter H. Raven 1952-5-26 4043 Napa Howell Mountain. 548 Comment
  CAS-BOT-BC32051  Carex multicaulis Peter H. Raven 1950-6-20 2377 Napa Howell Mtn on NNE side Road above Pope Valley. Comment
  CAS-BOT-BC32125  Carex multicaulis Peter H. Raven 1950-6-20 2377 Napa Howell Mtn on NNE side Road to Pope Valley. 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
  JEPS110617  Castilleja affinis subsp. affinis Jake Ruygt 1991-5-11 2652 Napa 1 mile north of College Ave. on Howell Mountain Rd. 551 Comment
  JEPS3817  Castilleja affinis subsp. affinis W. L. Jepson 1938-5-24 18839 Napa near Four Corners; Howell Mountain Comment
  JEPS54488  Castilleja affinis subsp. affinis Robert Cruden 1967-5-27 1247 Napa 3 mi ne Angwin (Ink Grade) 487 Comment
  JEPS57376  Castilleja affinis subsp. affinis L. R. Heckard and T. I. Chuang 1968-6-18 1943 Napa 2 mi below Ink Grade junction with Howell Mt. road (ne of Angwin) (Ink Grade) 457 Comment
  UC103530  Castilleja affinis subsp. affinis Mrs. Goetsche 1901-5-1 Napa Angwin Comment
  JEPS103917  Castilleja applegatei subsp. martinii T. I. and F. M. Chuang 1991-6-23 7834 Napa 3 mi N of Angwin, along Ink Gade Rd. Comment
  JEPS57375  Castilleja applegatei subsp. martinii L. R. Heckard and T. I. Chuang 1968-6-18 1941 Napa 1 mi below Ink Grade junction with Howell Mt. road (Ink Grade, ne of Angwin) 457 Comment
  JEPS88819  Castilleja applegatei subsp. martinii T. I. Chuang and F. M. Chuang 1991-6-23 7834 Napa 3 mi n Angwin (along Ink Grade Rd) Comment
  JEPS9976  Castilleja attenuata W. L. Jepson 1904-6-3 2436 Napa Howell Mt. Napa Range 792 Comment
  JEPS10340  Castilleja exserta subsp. exserta W. L. Jepson 1915-4-13 5307 Napa Howell Mt. 609 Comment
  CDA11180  Castilleja rubicundula G. F. Hrusa 1988-4-16 5549 Napa North Coast Biodiversity Arena; 1 m. E of junction of Chiles Valley and Pope Valley Rds. Comment
  JEPS42323  Ceanothus W. L. Jepson 1904-6-3 2451 Napa Howell Mt. Comment
Read comments
Jan 18 2009
  POM204011  Ceanothus cuneatus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  RSA41954  Ceanothus cuneatus H. C. Cantelow 1936-3-22 1139 Napa Howell Mt. Comment
  JEPS110719  Ceanothus cuneatus var. cuneatus Jake Ruygt 1991-5-18 2679 Napa Cooksley Lake, Friesen's lakes, Angwin 612 Comment
  JEPS42189  Ceanothus cuneatus var. cuneatus W. L. Jepson 1904-6-3 2447 Napa Howell Mt. Comment
  JEPS42196  Ceanothus cuneatus var. cuneatus W. L. Jepson 1913-4-15 5313 Napa Howell Mt. 609 Comment
  UC1328142  Ceanothus cuneatus var. cuneatus Donald V. Hemphill 1940-3-22 45 Napa 2 mi w Angwin (Bell's Canyon) 518 Comment
  JEPS42325  Ceanothus dentatus W. L. Jepson 1913-4-15 5312 Napa Howell Mt. Comment
  GH349327  Ceanothus foliosus W. L. Jepson 1924-4-6 10318 Unknown Howell Mt., Napa Range 914 Comment
  RSA127599  Ceanothus foliosus Peter H. Raven 1955-4-9 8264 Napa W slope of Howell Mt. 457 Comment
  RSA285633  Ceanothus foliosus D. C. Michener 1982-7-25 4116 Napa 2 miles SW of jct with college way in anguin. Comment
  RSA292971  Ceanothus foliosus Reino Alava 1957-5-30 1014 Napa along the road 2.5 miles from the town of Pope Valley on the road to St. Helena Comment
  CAS-BOT-BC50876  Ceanothus foliosus var. foliosus H. E. McMinn 1922-6-8 175 Napa Howell Mt. Comment
  CAS-BOT-BC50912  Ceanothus foliosus var. foliosus Paul F. Covel 1940-4-28 1705 Napa Grade near Sanatarium Comment
  CAS-BOT-BC50915  Ceanothus foliosus var. foliosus C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC50924  Ceanothus foliosus var. foliosus Carl B. Wolf 1928-5-3 1827 Napa Base of Mt. St. Helena Comment
  JEPS42328  Ceanothus foliosus var. foliosus W. L. Jepson 1915-12-6 6585 Napa Howell Mt. Comment
  JEPS42434  Ceanothus foliosus var. foliosus W. L. Jepson 1924-4-6 10318 Napa Howell Mountain, Napa Range 914 Comment
  UCD112146  Ceanothus foliosus var. foliosus J. M. Tucker 1951-3-28 2065 Napa Beside road up south side of Howell Mountain, 5.6 miles north of St. Helena. Comment
  CAS-BOT-BC50631  Ceanothus jepsonii H. E. McMinn 1922-8-2 298 Napa Upper Pope Valley along old RR bed Comment
  CAS-BOT-BC50639  Ceanothus jepsonii C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  GH349691  Ceanothus jepsonii W. L. Jepson 1904-6-3 2451 Unknown Howell Mt. Comment
  JEPS20109  Ceanothus jepsonii W. L. Jepson 1915-12-6 6589 Napa Howell Mt. Comment
  POM263486  Ceanothus jepsonii J. C. Roos 1939-2-28 306 Napa howell Mt. Napa Range Comment
  UC423435  Ceanothus jepsonii Katharine Brandegee 1916-7-27 Napa near Angwin Comment
  UCD112070  Ceanothus jepsonii J. Street 1950-4-25 s.n. Napa Pope Valley in Oak Woodland. Comment
  UCD118607  Ceanothus jepsonii William Goss; Plant Biology 102 Collectors 2012-5-5 4 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 407 Comment
  UCR23540  Ceanothus jepsonii John C. Roos 1939-2-28 306 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  CAS-BOT-BC53179  Ceanothus parryi M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CAS-BOT-BC52180  Ceanothus purpureus W. L. Jepson 1904-6-3 2451 Napa Howell Mt. Comment
  SBBG50595  Ceanothus sonomensis I. Onwueme 1966-4-28 20 Napa ca. 2 mi E of Pope Valley 213 Comment
  JEPS46944  Centaurium trichanthum W. L. Jepson 1916-8-6 6836 Napa Howell Mt. Comment
  UC22688  Centaurium trichanthum H. N. Bolander 1863-1 2652 Napa Pope Valley Comment
  UC22707  Centaurium trichanthum H. N. Bolander 1863-9-20 2652 Napa Pope Valley Comment
  CAS-BOT-BC288605  Centromadia fitchii John Thomas Howell 1930-10-19 5611 Napa 1 mile E of Aetna Springs, Pope Valley Comment
  JEPS38152  Centromadia fitchii W. L. Jepson 1930-10-19 15688 Napa Pope Valley Comment
  JEPS112623  Centunculus minimus Jake Ruygt 1986-5-24 1782 Napa Pope Canyon Rd. at large vernal pool 187 Comment
  JEPS46425  Cercocarpus betuloides W. L. Jepson 1896-2-23 Napa Howell Mt. Comment
  UCD113050  Cercocarpus betuloides J. M. Tucker 1951-3-28 2066 Napa Beside road up south side of Howell Mountain, 5.6 miles north of 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
  UC1328140  Cercocarpus betuloides var. betuloides Donald V. Hemphill 1940-3-22 47 Napa 2 mi w of Angwin (Bell's Canyon); Bell's Canyon 426 Comment
  UC187521  Cercocarpus betuloides var. betuloides Katharine Brandegee July 1910 Napa e of Angwin (Howell Mountain); Howell Mountain 914 Comment
  CAS-BOT-BC70161  Cheilanthes gracillima J. W. Stacey 1933-5-15 s.n. Napa Howell Mt. Comment
  JEPS120318  Chorizanthe stellulata Jake Ruygt 1993-5-22 3265 Napa On private road across from James Creek Road at Butts Canyon Road. Aetna Springs 7.5' Quad. Comment
  UC1301212  Cirsium occidentale var. venustum Helen K. Sharsmith 1962-6-3 5116 a Napa near Angwin (w slope of Mount Howell); San Francisco Bay Region, Mount Howell 487 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
  JEPS59181  Cirsium remotifolium var. odontolepis W. L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  JEPS59182  Cirsium remotifolium var. odontolepis W. L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  UC127474  Cirsium remotifolium var. odontolepis Harley P. Chandler Sep 7 1906-Sep 14 1906 7151 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS110770  Clarkia affinis Jake Ruygt 1996-5-13 3674 Napa Wantrop Wildlife Sanctuary, Hardin Road, Pope Valley 475 Comment
  UC1299420  Clarkia amoena Freed W. Hoffman 1947-6-18 1649 Napa Pope Valley road North Coast Ranges Comment
  HSC64520  Clarkia concinna subsp. concinna J. P. Smith, J. O. Sawyer 1970-5-17 3772 Napa 3 mi. S of Pope Valley Comment
  UC130893  Clarkia concinna subsp. concinna Katharine Brandegee 1909-6-1 Napa from Calistoga; Pope Valley Grade Comment
  POM32044  Clarkia gracilis subsp. gracilis Katherine Brandegee 1909-6-1 s.n. Napa Pope Valley Grade. Comment
  UC130884  Clarkia gracilis subsp. gracilis Katharine Brandegee 1909-6-1 Napa Type locality Pope Valley Grade Comment
  CAS-BOT-BC163693  Clarkia purpurea subsp. quadrivulnera Thomas W. Nelson; Jane P. Nelson 1980-5-3 5135 Napa Along St. Helena-Pope Valley Rd. 1 mile west of Angwin Comment
  CAS-BOT-BC163826  Clarkia purpurea subsp. quadrivulnera Rimo Bacigalupi 1928-6-20 1857 Napa Howell Mt. 10 miles west of St. Helena Comment
  HSC82082  Clarkia purpurea subsp. quadrivulnera Thomas W. Nelson, Jane P. Nelson 1980-5-3 5135 Napa Along St. Helena-Pope Valley Rd., 1 mi. W of Angwin Comment
  POM161349  Clarkia purpurea subsp. quadrivulnera R. C. Bacigalupi 1928-6-20 1857 Napa Howell Mt. 10 miles west of St Helena. Comment
  UC142974  Clarkia purpurea subsp. quadrivulnera Katharine Brandegee July 1910 Napa near Angwin Comment
  UC1301111  Clarkia purpurea subsp. viminea Helen K. Sharsmith 1962-6-3 5114 Napa near Angwin; San Francisco Bay Region, Mount Howell 487 Comment
  CAS-BOT-BC164761  Clarkia rhomboidea Peter H. Raven 1951-5-26 s.n. Napa Howell Mtn just above Pope Valley Comment
  JEPS110693  Clarkia rhomboidea Jake Ruygt 1978-5-21 335 Napa .3 mile north of White Cottage Rd. on Summit Rd. 536 Comment
  CAS-BOT-BC439375  Claytonia gypsophiloides Carl B. Wolf 1928-5-3 1829 Napa Base of Mt. St. Helena Comment
  CAS-BOT-BC91448  Clematis lasiantha Mrs. Clara Hunt 1921-4-1 s.n. Napa Saint Helena. Comment
  CHSC22322  Collinsia grandiflora Robert A. Schlising; Greg Bos 1963-3-30 2473 Napa Coast Ranges. Pope Valley Road, 5.8 miles north of junction with Lower Chiles Valley Road. Comment
  JEPS7349  Collinsia heterophylla E. Ferguson 1920-5-15 350 Napa Pope Valley Comment
  SEINET13406371  Collinsia sparsiflora M. J. Williams 1967-5-7 s.n. Napa Pope Valley. 198 Comment
  UCD123653  Collinsia sparsiflora G. F. Hrusa; S. Larson 1995-4-10 12064 Napa along Chiles Valley/Pope Valley Road approximately 2 meters south of Pope Canyon Road intersection. North Coast Biodiversity Arena. 175 Comment
  UCD123659  Collinsia sparsiflora R. L. Smith 1948-5-8 s.n. Napa Pope Valley. Comment
  CDA11625  Collinsia sparsiflora var. arvensis G. F. Hrusa, S. Larson 1995-4-1 12064 Napa North Coast Biodiversity Arena; Chiles Valley/Pope Valley Rd. approx 2 m. S of Pope Canyon Rd. intersection. Comment
  CHSC22324  Collinsia sparsiflora var. arvensis Katherine Steedman 1965-4-3 39 Napa 1.5 mi e of Pope Valley. 152 Comment
  HSC58982  Collinsia sparsiflora var. arvensis George E. Johnston 1974-4-4 1020 Napa Near Bell Canyon 427 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
  RSA264960  Collinsia sparsiflora var. arvensis George E. Johnston 1974-4-4 6118 Napa The collection was made near Bell Canyon. Near Angwin. 427 Comment
  JEPS112528  Collinsia sparsiflora var. collina Jake Ruygt 1997-4-5 3823 Napa S of intersection of Butts Canyon Road with James Creek Road 207 Comment
  UCD123679  Collinsia sparsiflora var. sparsiflora G. E. Johnston 1974-4-4 6118 Napa Bell Canyon, quadrangle near Angwin. 426 Comment
  JEPS7313  Collinsia tinctoria Willis L. Jepson 1893-6-26 21328 Napa Angwin's Meadows; Napa River Basin; Howell Mtn. Comment
  CLARK-A1528-3461  Collomia heterophylla John C. Roos 1939-4-26 260 Napa Angwin Comment
  RSA304646  Collomia heterophylla D. H. Wilken 1973-5-6 11926 Napa Summit of Howell Mtn. Road, between Anguin and Pope Valley 518 Comment
  SBBG103169  Collomia heterophylla D. H. Wilken 1973-5-6 11926 Napa summit of Howell Mtn Rd between Angwin and Pope Valley 518 Comment
  UC127118  Cordylanthus pilosus subsp. pilosus Harley P. Chandler Sep 7 1906-Sep 14 1906 7116 Napa Howell Mt; Alta Loma Ranch 487 Comment
  UC217601  Cordylanthus pilosus subsp. pilosus Katharine Brandegee Napa near Aetna; Pope Valley Comment
  UC146880  Cordylanthus tenuis subsp. brunneus Katharine Brandegee 1910-1 Napa near Angwin Comment
  UC21512  Cornus glabrata unknown 2657 Napa Pope Valley Comment
  HSC58986  Cornus nuttallii D. R. Hardy 1972-5-10 Napa Close to the town of Angwin. 366 Comment
  JEPS50156  Cornus nuttallii W. L. Jepson 1896-2-22 14142 Napa Howell Mt. Comment
  POM298446  Cornus nuttallii H. C. Cantelow 1936-3-22 s.n. Napa Howell Mt. Comment
  UC126696  Cornus nuttallii Harley P. Chandler Sep 7 1906-Sep 14 1906 7155 Napa Howell Mt., Alta Loma Ranch 487 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
  UCSB19154  Cornus nuttallii Rankine, Jane 1965-4-13 Napa 4 miles east of Pope Valley; on the road between Pope Valley and Anqwin Comment
  UC127159  Cornus sericea subsp. sericea Harley P. Chandler Sep 7 1906-Sep 14 1906 7150 Napa Alta Loma Ranch 487 Comment
  UC127083  Corylus californica Harley P. Chandler Sep 7-14 1906 7156 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC180346  Corylus cornuta subsp. californica Peter H. Raven 1952-5-26 4047 Napa Howelll Mt. 426 Comment
  SEINET3151516  Corylus rostrata var. californica H. P. Chandler 1906-9-7 7156 Napa Alta Loma Ranch; Howell Mt. 549 Comment
  JEPS67599  Cryptantha flaccida W. L. Jepson 1904-6-3 2443 Napa Howell Mt. Napa Range 792 Comment
  JEPS106700  Cryptantha hispidula Jake Ruygt 1993-4-12 3205 c Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  JEPS88724  Cupressus macnabiana W. L. Jepson Jul 1897 Napa Samuel Springs to Middleton Comment
  UC813439  Cupressus macnabiana Milo S. Baker 1931-4-2 5125 Napa Pope Valley Road near turn to Aetna Springs 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
  JEPS39750  Cupressus sargentii unknown 1892-1-1 Napa Howell Mt. Comment
  POM196468  Cupressus sargentii J. T. Howell 1927-8-24 3051 Napa Pope Valley - Middleton Road, Napa Range Comment
  POM7507  Cuscuta ceanothi H. P. Chandler 1906-9-7 7123 Napa Alta Loma Ranch 488 Comment
  UC127129  Cuscuta subinclusa Harley P. Chandler Sep 7 1906-Sep 14 1906 7123 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC129079  Cuscuta subinclusa Harley P. Chandler Sep 7 1906-Sep 14 1906 7124 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD149701  Cynoglossum grande Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  CAS-BOT-BC190361  Cynosurus echinatus Peter H. Raven 1950-6-20 2352 Napa On the west side of Howell Mountain. Comment
  UC1177100  Cynosurus echinatus Peter H. Raven 1950-6-20 2352 Napa Howell Mountain Comment
  UCD37686  Cynosurus echinatus Beecher Crampton 1961-6-12 5903 Napa Napa County, 7 miles northeast of city of Napa, Howell Mountains, summit along State highway 37. Comment
  UCD60160  Cynosurus echinatus Beecher Crampton 1961-6-12 5903 Napa 7 miles northeast of Napa, Howell Mountains, summit State Hwy. 37. Comment
  UCR30535  Cynosurus echinatus John C. Roos 1972-5-18 s.n. Napa Angwin 366 Comment
  CAS-BOT-BC70647  Cystopteris fragilis Carl B. Wolf 1928-5-3 1842 Napa base of Mt. St. Helena Comment
  JEPS110931  Damasonium californicum Jake Ruygt 1982-6-13 1321 Napa Pope Canyon Rd. , (vernal pond) 185 Comment
  UCD37950  Danthonia californica Beecher Crampton 1962-5-16 6437 Napa Napa County, town of Pope Valley. Comment
  UCD60520  Danthonia californica Beecher Crampton 1962-5-16 6437 Napa Pope Valley (the town). Comment
  UCR30537  Danthonia californica John C. Roos 1939-5-13 272 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  JEPS129031  Daucus pusillus Jake Ruygt 2016-5-21 6259 Napa Wantrup Wildlife Preserver, Hardin Road. Santa Helena 7.5' Quad. Comment
  CAS-BOT-BC10198  Delphinium hesperium Rimo Bacigalupi 1928-6-20 1856 Napa Howell Mtn., 10 miles west of St. Helena Comment
  POM161348  Delphinium hesperium Rimo Bacigalupi 1928-6-20 1856 Napa Howell Mt, 10 miles W of St Helena Comment
  UC467744  Delphinium hesperium subsp. hesperium Katharine Brandegee Napa Pope Valley Grade Comment
  HSC58984  Delphinium nudicaule George E. Johnston 1974-4-4 1026 Napa Near Bell Canyon 427 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
  UC130936  Delphinium nudicaule Katharine Brandegee 1909-6-1 Napa from Calistoga; Pope Valley Grade Comment
  CAS-BOT-BC116484  Delphinium patens subsp. patens Saichi Kawahara 1968-4-20 350 Napa 2 miles south of Pope Valley, Chiles-Pope Valley Road, Napa Valley 259 Comment
  CAS-BOT-BC116493  Delphinium patens subsp. patens C. B. Wolf 1928-5-3 1834 Napa base of Mt. St. Helena Comment
  JEPS23343  Delphinium uliginosum J. P. Tracy 1899-6-13 354 Napa Howell Mt. Comment
  JEPS122988  Deschampsia danthonioides Jake Ruygt 1996-5-4 3654 Napa Butts Canyon Road at James Creek Road; SE field. Quad: Aetna Springs. Comment
  SEINET200211 Image available Deschampsia danthonioides P. H. Raven 1957-5-5 10746 Napa About alkaline springs near airport Calistoga 91 Comment
  UC766810  Deschampsia danthonioides R. F. Hoover 1941-4-26 4922 Napa Pope Valley Comment
  UC421804  Dichelostemma capitatum Katharine Brandegee 1901-6-1 Napa Pope Valley Grade Comment
  UC765931  Dichelostemma congestum R. F. Hoover 1941-4-26 4924 Napa Pope Valley Comment
  CAS-BOT-BC153771  Diplacus angustatus J. W. Stacey 1933-5-16 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC153408  Diplacus layneae J. W. Stacey 1933-5-15 s.n. Napa Howell Mt. Comment
  UC126466  Dipsacus fullonum Harley P. Chandler Sept. 7 to 14, 1906 7130 Napa Alta Loma Ranch Howell Mountain Comment
  JEPS103656  Downingia bicornuta var. bicornuta Lisa Schultheis 1995-5-31 193 -95 Napa Corner of Pope Valley Cross Road and Chiles-Pope Valley Road Comment
  JEPS106561  Downingia bicornuta var. bicornuta Jake Ruygt 1993-5-1 3244 Napa Pope Canyon Rd at large vernal pond 187 Comment
  JEPS103628  Downingia concolor var. concolor Lisa Schultheis 1995-5-31 195 -95 Napa corner of Pope Valley Cross Road and Chiles-Pope Valley Road Comment
  JEPS106566  Downingia concolor var. concolor Jake Ruygt 1996-5-13 3662 Napa Hardin Road, .35 mile from Pope Canyon Road, Pope Valley 183 Comment
  UCD148768  Downingia concolor var. concolor Jake Ruygt 1982-6-13 1322 Napa Napa County; Pope Canyon Rd., near large vernal pond on south side of road. 185 Comment
  POM263488  Draba verna J. C. Roos 1939-2-21 299 Napa Near Angwin, Napa Range. 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
  CAS-BOT-BC70948  Dryopteris arguta Carl B. Wolf 1928-5-3 1841 Napa base of Mt. St. Helena Comment
  JEPS60038  Dryopteris arguta W. L. Jepson 1936-7-2 17646 Napa Angwin Meadow Howell Mts; Napa Range Comment
  HSC65075  Dudleya cymosa J. P. Smith, J. O. Sawyer 1970-5-17 3775 Napa 3 mi. S of Pope Valley Comment
  CLARK-A1528-4596  Echinochloa crus-galli John C. Roos 1939-5-7 262 Napa Angwin Comment
  JEPS121356  Eleocharis macrostachya Jake Ruygt 1996-5-13 3666 Napa .9 mile south of Pope Canyon Road on Hardin Road. Comment
  JEPS122982  Elymus elymoides var. elymoides Jake Ruygt 1994-5-17 3383 Napa Butts Canyon Road; Juliana Vineyards. Quad: Aetna Springs. Comment
  UCD149692  Elymus glaucus Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCR25608  Elymus glaucus John C. Roos 1939-5-13 256 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  UCR267864  Elymus glaucus Stephen P. Rae, Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, c. 1 km west of Angwin. McCrane property 526 Comment
  CAS-BOT-BC203595  Elymus glaucus subsp. glaucus J. Clausen 1935-5-23 1072 b Napa Howell Mountain, near summit, 6.5 mi. N. of St. Helena Comment
  JEPS76093  Elymus glaucus subsp. glaucus W. L. Jepson 1938-5-24 18851 Napa plateau n Four Corners; Napa Range, Howell Mountain 762 Comment
  JEPS122977  Elymus multisetus Jake Ruygt 1991-6-10 2718 Napa Cookesley Lake, Friesen's Lakes. Quad: Saint Helena. Comment
  UC127472  Epilobium brachycarpum Harley P. Chandler Sep 7 1906-Sep 14 1906 7121 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS122727  Epilobium campestre Jake Ruygt 1982-6-13 1323 Napa Pope Canyon Road at large vernal pool. Quad: St. Helena. Comment
  UC126465  Epilobium densiflorum Harley P. Chandler Sep 7 1906-Sep 14 1906 7125 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS38215  Epilobium torreyi Willis L. Jepson 1893-6-26 14409 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  UCD131309  Ericameria arborescens George Field 1966-1-8 s.n. Napa 1/2 miles west of Angwin. 487 Comment
  JEPS41421  Erigeron biolettii Willis L. Jepson 1893-1 Napa Howell Mt. Napa River Basin Comment
  UC126554  Erigeron biolettii Harley P. Chandler Sep 7 1906-Sep 14 1906 7134 Napa Alta Loma Ranch 487 Comment
  UCD63173  Erigeron biolettii Jake Ruygt 1978-9-9 412 Napa 1.4 miles northeast of College Ave. on Howell Mt. Rd. 573 Comment
  CLARK-A1528-2168  Erigeron inornatus John C. Roos 1939-4-16 252 Napa Angwin Comment
  POM264143  Erigeron inornatus var. biolettii J. C. Roos 1939-4-16 252 Napa Angwin. Comment
  CAS-BOT-BC216031  Eriodictyon californicum M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CAS-BOT-BC216032  Eriodictyon californicum R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6672 a Napa 7 mi. NE of Pacific Union college (Howell Mt.) on road to Aetna Springs Comment
  UC527841  Eriodictyon californicum R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6672 a Napa 7 mi ne of Pacific Union College (Howell Mt.) on road to Aetna Springs Howell Mt. Comment
  UC130954  Eriogonum compositum var. compositum Katharine Brandegee 1909-6-1 Napa Pope Valley Grade from Calistoga Comment
  JEPS56163  Eriogonum vimineum Willis L. Jepson 1893-9-24 Napa Angwin's Meadow Howell Mt., Angwin's Meadow Comment
  LA203599  Eriophyllum lanatum var. achilleoides L. R. Mason; Herbert L. Mason 1933-4-30 -- Constamce E 16 Lake Serpentine Ridge between Middleton & Pope Valley, about 1 mi. from Etna Springs Comment
  UC507050  Eriophyllum lanatum var. achilleoides L. R. and H. L. Mason 1933-4-30 E 16 Lake between Middleton and Pope Valley (Serpentine Ridge, about 1 mi from Etna Springs); Serpentine Ridge Comment
  JEPS106525  Erodium brachycarpum Jake Ruygt 1991-4-20 2629 Napa Cooksley Lake, Friesen's Lakes,Angwin 615 Comment
  SEINET5585685  Erodium brachycarpum Richard R. Halse 2013-1 8758 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chiles Valley Road. 230 Comment
  JEPS106855  Erodium cicutarium Jake Ruygt 1991-4-20 2630 Napa Cooksley Lake, Friesen's Lakes,Angwin 615 Comment
  RSA450311  Erythronium californicum J. C. Roos 1938-4-4 1632 Napa Pacific Union College, Angwin. Comment
  CAS-BOT-BC133293  Erythronium helenae Mrs. Clara Hunt 1921-4-1 s.n. Napa Popes Valley near St. Helena Comment
  JEPS51781  Eschscholzia californica W. L. Jepson 1904-6-3 2442 Napa Howell Mt. 792 Comment
  OBI11795  Eschscholzia californica R. L. Hoover 1968-4-20 55 Napa In field NE of jctn of Aetna Springs, Pope Valley, and Butts Cyn Rds Comment
  UC126645  Eschscholzia californica Harley P. Chandler Sep 7 1906-Sep 14 1906 7132 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC142916  Eschscholzia californica Katharine Brandegee 1910-7-27 Napa near Angwins Comment
  UCD149689  Euphorbia oblongata Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UC527956  Euphorbia spathulata R. Bacigalupi, R. S. Ferris and Ira L. Wiggins 1933-6-2 6670 Napa 6 mi ne Pacific Union College (Howell Mt.) (on road to Aetna Springs) Comment
  UCD39035  Euphorbia spathulata Beecher Crampton 1962-5-16 6435 Napa About 2 miles S of Aetna Springs, along road to Pope Valley. Comment
  UC126550  Eurybia radulina Harley P. Chandler Sep 7 1906-Sep 14 1906 7126 Napa Howell Mountain, Alta Loma Ranch 487 Comment
  UC485607  Eurybia radulina Katharine Brandegee 1910-7-27 Napa Angwin, Howell Mt. Comment
  JEPS32431  Euthamia occidentalis Willis L. Jepson 1893-9-24 Napa Howell Mt. Angwin's; Napa River Basin Comment
  JEPS69235  Festuca californica W. L. Jepson 1913-4-15 5315 Napa Howell Mt. 609 Comment
  JEPS71213  Festuca californica W. L. Jepson 1936-7-3 17647 Napa Howell Mt. Comment
  UCD149700  Festuca californica Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCR23934  Festuca californica John C. Roos 1939-4-16 275 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  HSC26181  Festuca elmeri J. P. Smith, J. O. Sawyer 1970-5-17 3778 Napa 3 mi. S of Pope Valley Comment
  UCR24024  Festuca microstachys John C. Roos 1939-4-29 288 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCR30532  Festuca microstachys John C. Roos 1939-4-15 318 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  UCSB40902  Festuca microstachys Roos, John 1939-4-18 Napa 3.5 mi N. of Pacific Union College; Angwin; roadside below Dilly's place Comment
  SEINET200830 Image available Festuca rubra J. P. Tracy 1902-5-19 1549 Napa Head of Moore's Creek 3-4 mi E of Angwin's Howell Mtn 518 Comment
  UCR19343  Festuca tracyi John C. Roos 1939-4-18 251 Napa North Coast Range, 3.5 mi. north of Pacific Union College, Angwin. Roadside below Dilly's Place 231 Comment
  CAS-BOT-BC223534  Fraxinus latifolia H. E. McMinn 1922-6-8 178 Napa Collected on summit of Howell Mt. Four Comment
  LA50918  Fraxinus latifolia Joseph Andorfer Ewan; 1934-4-30 8860 Napa near Samuel Springs, above Monticello on Pope Valley Grade Comment
  CAS-BOT-BC130079  Fritillaria affinis Carl B. Wolf 1928-5-3 1836 Napa Base of Mt. St. Helena Comment
  POM204016  Galium andrewsii M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS52705  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-5-26 3782 A Napa Howell Mt. rd 1 mi n Pacific Union College (n of Angwin) Comment
  UC127126  Galium bolanderi Harley P. Chandler Sep 7 1906-Sep 14 1906 7105 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD149696  Galium californicum Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD121896  Galium porrigens G. F. Hrusa; G. L. Stebbins 1994-4-14 11778 Napa Butts Canyon, 4 m. N Pope Valley. Along Butts Creek. 200 Comment
  UCD149695  Galium porrigens Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  CAS-BOT-BC144413  Garrya fremontii C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC192214  Garrya fremontii Mrs. C. E. Miller 1918-8-1 s.n. Lake Howell Mt. Comment
  JEPS46448  Garrya fremontii W. L. Jepson 1906-2-23 Napa Howell Mt. Comment
  JEPS66741  Garrya fremontii W. L. Jepson 1913-4-15 5316 Napa Howell Mt. 609 Comment
  JEPS66742  Garrya fremontii W. L. Jepson 1913-4-15 5310 Napa Howell Mt. 609 Comment
  UC876025  Garrya fremontii Mrs. C. E. Miller Aug 1918 Napa Howell Mt. Comment
  JEPS76095  Gastridium ventricosum W. L. Jepson 1938-5-25 18866 Napa Bell Canyon Howell Mt.; Napa Range, , Bell Canyon 579 Comment
  JEPS76096  Gastridium ventricosum W. L. Jepson 1938-5-25 18866 Napa Bell Canyon Howell Mt.; Napa Range, , Bell Canyon 579 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-BC208041  Genista monspessulana M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  UC133966  Gilia capitata subsp. capitata Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  HSC58980  Gilia tricolor subsp. diffusa G. E. Johnston 1974-4-4 1201 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS110996  Gilia tricolor subsp. tricolor Jake Ruygt 1993-4-12 3204 b Napa south of James Creek Road and Butts Cany on Road. 225 Comment
  JEPS129069  Gilia tricolor subsp. tricolor Jake Ruygt 2016-3-26 6167 Napa Wantrup Wildlife Preserve. Saint Helena 7.5' Quad. Comment
  JEPS33907  Githopsis specularioides D. E. Breedlove 1963-5-29 5063 Napa 4.5 mi n Pope Valley Comment
  SEINET7072774  Githopsis specularioides 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
  UC32016  Gnaphalium palustre Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin, Howell Mt. Comment
  JEPS110683  Gratiola ebracteata Jake Ruygt 1996-5-19 3714 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  SEINET3132905  Grindelia hirsutula M. P. Dunford 1959-10-3 557 Napa Summit of Howell Mtn.; 2 mi. S of Pope Valley on road to Angwin Comment
  UC32141  Grindelia hirsutula Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin, Howell Mt. Comment
  UC472392  Grindelia hirsutula H. P. Chandler 1907-7-19 7604 Napa Howell Mt. Comment
  CAS-BOT-BC302227  Harmonia nutans Paul F. Covel 1940-4-28 s.n. Napa Howell Mountain, near Pacific Union College Comment
  CAS-BOT-BC302235  Harmonia nutans J. Clausen 1935-5-23 1072 Napa 6.5 mi. N. of St. Helena on Howell Mtn near summit Comment
  CAS-BOT-BC302236  Harmonia nutans J. Clausen 1935-5-23 1072 Napa Howell Mountain, near summit, 6.5 mi. N.E. of St. Helena Comment
  CAS-BOT-BC302237  Harmonia nutans J. Clausen 1935-5-23 1072 Napa Howell Mountain, near summit, 6.5 mi. N.E. of St. Helena Comment
  JEPS13616  Harmonia nutans W. L. Jepson 1904-6-3 2440 Napa Howell Mt. Comment
  JEPS40020  Harmonia nutans W. L. Jepson 1904-6-3 2440 Napa Howell Mt. 792 Comment
  SBBG8600  Harmonia nutans J. Clausen 1935-5-23 1072 Napa Howell Mtn near summit, 6.5 mi NE of Saint Helena Comment
  UC185684  Harmonia nutans Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  UC913106  Harmonia nutans J. Clausen 1935-5-23 1072 Napa 6.5 mi ne St. Helena (near summit); Howell Mountain Comment
  UC127186  Helenium puberulum Harley P. Chandler Sep 7 1906-Sep 14 1906 7109 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS21036  Helianthella californica subsp. californica W. L. Jepson 1904-6-3 2450 Napa Howell Mt. Comment
  JEPS21037  Helianthella californica subsp. californica W. L. Jepson 1904-6-3 2450 Napa Howell Mt. Comment
  JEPS21038  Helianthella californica subsp. californica Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  JEPS33582  Helianthella californica subsp. californica W. L. Jepson 1938-5-24 18843 Napa plateau n Four Corners; Napa Range, Howell Mtn. 883 Comment
  UC1301032  Helianthella californica subsp. californica Helen K. Sharsmith 1962-6-3 5112 Napa w slope of mtn near Angwin; Mount Howell 487 Comment
  CAS-BOT-BC314719  Helianthella californica var. californica Paul F. Covel 1940-4-28 1703 Napa Grade near Sanatarium 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
  HSC5789  Helianthus californicus H. P. Chandler 1906-11-10 7128 Napa Alta Loma Ranch; Howell Mtn. 488 Comment
  JEPS4455  Helianthus californicus W. L. Jepson 1893-9-24 13424 Napa Angwin's Meadows Howell Mountain, Angwin's Meadows Comment
  JEPS4456  Helianthus californicus Willis L. Jepson 1893-9-24 13424 Napa Angwin's Meadows Napa River Basin, Howell Mt., Angwins's Meadows 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
  JEPS4459  Helianthus californicus W. L. Jepson 1893-9-24 13426 Napa Napaleo, Angwin's Meadows Howell Mt., Napaleo, 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
  UC1925925  Hemizonia congesta Ethel Crum Oct 1930 916 Napa Pope Valley. Comment
  CAS-BOT-BC309835  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1930-10-19 5612 Napa 1 mile east of Aetna Springs, Pope Valley Comment
  JEPS38290  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1930-10-19 15690 Napa Pope Valley Comment
  UC175022  Hemizonia congesta subsp. luzulifolia Katharine Brandegee Napa near Angwin Comment
  SEINET7072773  Hesperevax sparsiflora var. sparsiflora 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
  JEPS49034  Hesperolinon W. L. Jepson 1936-7-3 17648 Napa La Brusca Howell Mt. Comment
  GH364897  Hesperolinon bicarpellatum M. K. Brandegee 1911-6-29 113 Unknown Butts Canon, near Aetna Springs Comment
  JEPS112584  Hesperolinon bicarpellatum Jake Ruygt 1993-5-22 3266 Napa on private road across from James Creek Rd at Butts Canyon Rd 222 Comment
  JEPS22718  Hesperolinon bicarpellatum Katharine Brandegee 1911-6-29 Napa near Aetna Springs; Butts Canyon Comment
  JEPS32274  Hesperolinon bicarpellatum Jos. P. Tracy Jun 13 1899-Jun 19 1899 382 Napa Howell Mt. Comment
  POM138927  Hesperolinon bicarpellatum Katherine Brandegee 1911-6-29 s.n. Napa Butts Canyon near Aetna Springs. Comment
  POM139230  Hesperolinon bicarpellatum Katherine Brandegee 1911-6-29 s.n. Napa Butts Canyon near Aetna Springs. Comment
  UC163930  Hesperolinon bicarpellatum Mrs. K. Brandegee 1911-6-29 113 Napa near Aetna Springs; Butts Canyon Comment
  CAS-BOT-BC176012  Hesperolinon californicum Freed W. Hoffman 1947-6-18 1650 Napa Pope Valley road Comment
  JEPS122836  Hesperolinon californicum W. A. Freyman with A. C. Schneider & Y. P. Springer 2014-5-18 229 Napa At end of Barnett Road off of Pope Valley Road. Comment
  JEPS32283  Hesperolinon californicum Willis L. Jepson 1893-6-26 13535 Napa Howell Mt. Napa River Basin Comment
  SD51666  Hesperolinon californicum Helen K. Sharsmith 1952-6-20 4146 Napa Near Pope Creek at its outlet from Pope Valley. 152 Comment
  UC1212445  Hesperolinon californicum Freed W. Hoffman 1947-6-18 1650 Napa Pope Valley Road Inner North Coast Ranges Comment
  UC1212522  Hesperolinon californicum Helen K. Sharsmith 1951-10-21 4039 Napa w side near creek Chiles Valley (road from Rutherford to Pope Valley); Inner North Coast Ranges 228 Comment
  UC1601207  Hesperolinon californicum Helen K. Sharsmith 1951-10-21 4037 Napa w side Chiles Valley (on Rutherford-Monticello road); Inner North Coast Ranges 243 Comment
  CAS-BOT-BC176058  Hesperolinon clevelandii Peter H. Raven 1950-6-20 2387 Napa Howell Mtn., on NNE side road to Pope Valley Comment
  POM264935  Hesperolinon clevelandii J. C. Roos 1939-5-13 266 Napa Angwin, Howell Mt. Comment
  RSA151704  Hesperolinon clevelandii H. K. Sharsmith 1957-5-30 4598 Napa West side of Howell Mountain 2.4 miles west of Angwin. 305 Comment
  RSA262583  Hesperolinon clevelandii Kathleen Barnes 1973-6-4 61 Napa McDonald Ranch, 1/2 mile up from house, Pope Valley Road. Comment
  UC1212330  Hesperolinon clevelandii Helen K. Sharsmith 1957-5-30 4597 Napa 1.1 mi beyond town of Pope Valley (on road to St. Helena); Inner North Coast Ranges, Howell Mountain 304 Comment
  UC1601236  Hesperolinon clevelandii Helen K. Sharsmith 1957-5-30 4598 Napa w side of mountain 2.4 mi w Angwin; Inner North Coast Ranges, Howell Mountain 304 Comment
  UCD110501  Hesperolinon clevelandii Kathleen Barnes 1973-6-4 61 Napa McDonald Ranch, 1/2 mile up from house, Pope Valley Road. Comment
  UC1212275  Hesperolinon micranthum Helen K. Sharsmith 1951-10-21 4040 Napa w side Chiles Valley (on road to Pope Valley); Inner North Coast Ranges 234 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
  JEPS122869  Hesperolinon sharsmithiae Adam C. Schneider with Will Freyman and Yuri P. Springer 2014-5-18 602 Napa At end of Barnett Rd. off of Pope Valley Rd. Comment
  JEPS122775  Hesperolinon spergulinum Jake Ruygt 1982-6-29 1357 Napa 0.4 miles west of Pope Valley Road on Howell Mtn. Road. QUAD: St. Helena Comment
  JEPS122841  Hesperolinon spergulinum W. A. Freyman with A. C. Schneider & Y. P. Springer 2014-5-17 221 Napa Along private road that runs west off of Pope Valley Road. Comment
  JEPS122908  Hesperolinon spergulinum Adam C. Schneider 2015-7-23 939 Napa Along private road that runs west off of Pope Valley Rd Comment
  JEPS32287  Hesperolinon spergulinum J. P. Tracy 1899-6-26 383 Napa Howell Mt. Comment
  JEPS32290  Hesperolinon spergulinum W. L. Jepson 1893-6-26 14380 Napa Howell Mt. Comment
  JEPS32293  Hesperolinon spergulinum W. L. Jepson 1916-8-6 6828 Napa Howell Mt. Comment
  UCSC009029  Hesperolinon spergulinum Dylan M. Neubauer 2015-4-24 131 Napa (NCoRI) N side Ink Grade Rd, 1.07 air-miles NW Pope Valley 289 Comment
  JEPS106575  Heterocodon rariflorum Jake Ruygt 1996-6-23 3757 Napa Wantrup Wildlife Sanctuary, Hardin Road, Pope Valley. 441 Comment
  UC1925919  Heterotheca oregona Ethel Crum Oct 1930 913 Napa Pope Valley Road, Yountville to Pope Valley. Comment
  JEPS106635  Hieracium albiflorum Jake Ruygt 1991-7-20 2782 Napa Ink Grade at White Cottage Rd. 560 Comment
  UC127169  Hieracium albiflorum Harley P. Chandler Sep 7 1906-Sep 14 1906 7152 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC127131  Hoita macrostachya Harley P. Chandler Sep 7 1906-Sep 14 1906 7120 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS65642  Hoita orbicularis Willis L. Jepson 1893-6-26 13589 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  JEPS71230  Holcus lanatus W. L. Jepson 1936-7-2 17643 Napa Angwin Meadow Howell Mt. (Napa Range); , , Angwin Meadow Comment
  CAS-BOT-BC324652  Holocarpha virgata John Thomas Howell 1930-10-19 5609 Napa 2 miles southeast of Aetna Springs, Pope Valley Comment
  CAS-BOT-BC324653  Holocarpha virgata John Thomas Howell 1930-10-19 5609 Napa 2 miles southeast of Aetna Springs, Pope Valley Comment
  UC1925923  Holocarpha virgata Ethel Crum Oct 1930 914 Napa Pope Valley. Comment
  UC419709  Holocarpha virgata subsp. virgata Mrs. H. P. Bracelin 1930-10-19 117 A Napa Pope Valley, near school Pope Valley Comment
  CAS-BOT-BC315787  Holozonia filipes K. Brandegee 1910-7-26 186 Napa Near Angwin's Comment
  CAS-BOT-BC315794  Holozonia filipes K. Brandegee 1910-7-26 186 Napa Near Angwin's Comment
  POM30486  Holozonia filipes Katherine Brandegee 1910-7-26 186 Napa Near Angwin's. Comment
  UC143000  Holozonia filipes Mrs. K. Brandegee 1910-7-26 186 Napa near Angwin's Comment
  UCD85463  Hordeum brachyantherum J. Street 1950-6-19 s.n. Napa Pope Valley. Comment
  JEPS122922  Hordeum brachyantherum subsp. californicum Jake Ruygt 1996-5-31 3724 Napa South of James Creek Road and Butts Canyon Road, Pope Valley. Quad: Aetna Springs. Comment
  UCD85462  Hordeum brachyantherum subsp. californicum J. Street 1950-6-19 s.n. Napa Pope Valley. Comment
  POM263252  Hordeum marinum subsp. gussoneanum J. C. Roos 1939-5-13 273 Napa Angwin, Howell Mt. Comment
  JEPS44532  Horkelia californica subsp. dissita Willis L. Jepson 1893-9-24 1214 p Napa Howell Mt.Napa River Basin, Angwin's Meadows Comment
  JEPS104554  Hydrocotyle ranunculoides Jake Ruygt 1991-7-20 2772 Napa L.Orville, Friesen's Lakes, Angwin 563 Comment
  CAS-BOT-BC400800  Hypericum anagalloides Rimo Bacigalupi 1928-6-20 1876 Napa Howell Mt 10 mi west of St Helena Comment
  UC127182  Hypericum anagalloides Harley P. Chandler Sep 7 1906-Sep 14 1906 7104 Napa Alta Loma Ranch 487 Comment
  POM285807  Hypericum androsaemum R. C. Bacigalupi 1928-06 1876 Napa Howell Mt., 10 mi. west of St. Helena Comment
  CAS-BOT-BC410212  Hypericum concinnum Peter H. Raven 1950-6-20 2380 Napa Howell Mtn. on NNE side Rd to Pope Valley 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
  UC127127  Hypericum concinnum Harley P. Chandler Sep 7 1906-Sep 14 1906 7106 Napa Howell Mt., Alta Loma Ranch 487 Comment
  UCSB19155  Iris douglasiana Rankine, Jane 1965-4-13 Napa 3 miles W of Pope Valley; on the road between Pope Valley and Anqwin Comment
  JEPS88857  Iris macrosiphon Carol A. Wilson 1992-4-18 92 -ph1 Napa 0.5 mi w Pope Valley (n of Angwin, Howell Mt Rd) Comment
  UCD138788  Iris macrosiphon H. Popenoe 1949-5-1 16 Napa Napa Valley: one mile from Pacific Union College on Pope Valley Road. Comment
  JEPS103966  Isoetes howellii Jake Ruygt 1996-5-19 3708 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS103968  Isoetes nuttallii Jake Ruygt 1996-5-19 3718 Napa Corner of Pope Valley Road and Barnett Road, Pope Valley 192 Comment
  JEPS122667  Juncus bolanderi Jake Ruygt 1991-6-29 2738 Napa Friesen Drive about 0.2 mile south of Lake Henne. Quad: St. Helena. Comment
  UCD81808  Juncus bolanderi Ellen Dean; Stephen Rae 2009-4-21 5435 Napa Along Friesen Lakes Road, NW of Anguin. 560 Comment
  UC127473  Juncus effusus var. pacificus Harley P. Chandler Sep 7 1906-Sep 14 1906 7103 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD149690  Juncus mexicanus Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  JEPS122658  Juncus oxymeris Jake Ruygt 1991-6-29 2739 Napa Friesen Drive about 0.2 mile south of Lake Henne. Quad: St. Helena. 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
  CAS-BOT-BC237851  Keckiella lemmonii Rimo Bacigalupi 1928-6-20 1873 Napa Howell Mt 10 miles west of St Helena Comment
  POM161357  Keckiella lemmonii R. C. Bacigalupi 1928-6-20 1873 Napa Howell Mt. 10 miles west of St Helena. Comment
  UC185352  Keckiella lemmonii Katharine Brandegee 1910-7-27 Napa Angwin's; Napa Range, Howell Mt. Comment
  JEPS76090  Koeleria macrantha W. L. Jepson 1938-5-24 18845 Napa Plateau n of Four Corners Howell Mountain (Napa Range); , Howell Mountain 762 Comment
  JEPS76091  Koeleria macrantha W. L. Jepson 1938-5-24 18845 Napa Plateau n of Four Corners Howell Mountain (Napa Range); , Howell Mountain 762 Comment
  UC127119  Lactuca serriola Harley P. Chandler Sep 7 1906-Sep 14 1906 7111 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC341556  Lagophylla ramosissima Rimo Bacigalupi 1928-6-20 1868 Napa Howell Mt. 10 miles west of St. Helena Comment
  UC154000  Lamium amplexicaule Joseph P. Tracy 1899-6-17 401 1/2 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  CAS-BOT-BC338901  Lasthenia californica M. S. Jussel 1921-4-19 s.n. Napa Pope Valley Comment
  JEPS106623  Lasthenia glaberrima Jake Ruygt 1986-4-13 1694 Napa Pope Canyon Rd. just east of vernal marsh 187 Comment
  JEPS106671  Lasthenia glaberrima Jake Ruygt 1996-5-13 3663 Napa .9 mile south of Pope Canyon Road on Hardin Road. 183 Comment
  JEPS122747  Lasthenia glaberrima Jake Ruygt 2011-5-7 5774 Napa Pope Valley, Pope Canyon Road at vernal marsh. Quad: St. Helena. Comment
  UC496104  Lathyrus aphaca Mrs. Ernest Lloyd 1931-5-5 Napa Howell Mountain Comment
  UCD13298  Lathyrus aphaca Stephanie Perez 1974-4-6 s.n. Napa Napa CO. Bickford residence, Ink Grade, 5 miles north of Angwin. Elevation 3000 feet. 914 Comment
  JEPS126083  Lathyrus cicera Jake Ruygt 1994-4-26 3354 Napa Pope Valley north of Barnett Road. Aetna Springs 7.5' Qua. Comment
  JEPS55384  Lathyrus vestitus var. vestitus W. L. Jepson 1924-4-6 10316 Napa Howell Mt. Napa Range 914 Comment
  UCD133938  Layia chrysanthemoides Craig Brauer 1974-4-15 7090 Napa the collection was made near Wallace Ranch. 188 Comment
  UC1157918  Lemna minuscula John C. Roos September 1938 Napa Angwin, Pacific Union College farm Angwin; , Pacific Union College farm 487 Comment
  JEPS126117  Lepidium campestre Jake Ruygt 1992-5-23 2997 Napa Buckeye Lane, 0.3 mile north of White Cottage Lane, Angwin. Saint Helena 7.5' Qua. Comment
  RSA137126  Leptosiphon androsaceus Verne Grant 1960-4-13 10189 Napa A few miles E. of Angwin on summit of road from St. Helena to Pope Valley. 518 Comment
  UCD82052  Leptosiphon jepsonii Robin McMaster 1972-4-22 67 Napa Pope Valley. Comment
  JEPS129077  Leptosiphon parviflorus Jake Ruygt 2016-4-12 6184 Napa Wantrup Wildlife Sanctuary, Hardin Road. Chiles Valley 7.5' Quad. Comment
  CAS-BOT-BC342022  Lessingia ramulosa John Thomas Howell 1930-10-19 5613 Napa 1 mile east of Aetna Springs, Pope Valley Comment
  JEPS20587  Lessingia ramulosa W. L. Jepson 1916-8-6 6829 Napa Howell Mt. Comment
  UC1287463  Lessingia ramulosa Willard Spence 1962-7-20 719 Napa 2 mi nw Pope Valley (on the road to Aetna Springs) Comment
  UC1925924  Lessingia ramulosa Ethel Crum Oct 1930 915 Napa Pope Valley. Comment
  UC33165  Lessingia ramulosa H. N. Bolander 1863-1 2617 Napa Pope Valley Comment
  POM109713  Lilium pardalinum subsp. vollmeri Geo D. Butler 1910-6-6 1454 Siskiyou Quartz Valley Comment
  POM170288  Lilium pardalinum subsp. wigginsii Geo D. Butler 1910-6-6 1454 Siskiyou Quartz Valley Comment
Read comments
Nov 25 2011
  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
  UC971874  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-5-8 1182 Napa Pope Valley Comment
  CAS-BOT-BC361310  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-3-27 8757 Napa Along the Chiles and Pope Valley Road ca 4.7 miles NW of its junction with the Lower Chiles Valley Road. 230 Comment
  CDA43225  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-3-27 8757 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of it junction with Lower Chiles Valley Road. Comment
  GH404315  Limnanthes douglasii subsp. nivea R. R. Halse 2013-3-27 8757 Unknown Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chilies Valley Road Comment
  JEPS112564  Limnanthes douglasii subsp. nivea Jake Ruygt 1996-3-23 3532 Napa .3 mile from Pope Canyon Road on Hardin Road, near airstrip. 184 Comment
  JEPS112565  Limnanthes douglasii subsp. nivea Jake Ruygt 1991-5-18 2686 Napa .6 mi. NW of Howell Mtn. Rd. on Butts Canyon Rd. 222 Comment
  JEPS112566  Limnanthes douglasii subsp. nivea Jake Ruygt 1994-4-16 3350 Napa North end of Chiles Valley near Chiles- Pope Valley Road. 228 Comment
  JEPS122739  Limnanthes douglasii subsp. nivea Jake Ruygt 2011-5-7 5779 Napa Mill Valley near Angwin; central portion. Quad: St. Helena. Comment
  JEPS29593  Limnanthes douglasii subsp. nivea Rimo Bacigalupi, and L. Heckard, P. C. Silva 1962-4-16 8450 Napa about 3/4 mi ne Hardin School; Pope Valley, overflow lands of Burton Creek 182 Comment
  OBI12592  Limnanthes douglasii subsp. nivea R. L. Hoover 1968-4-20 53 Napa On Howell Mtn Rd, on W side of rd at Angwin Comment
  SEINET5585702  Limnanthes douglasii subsp. nivea Richard R. Halse 2013-1 8757 Napa Along the Chiles and Pope Valley Road ca. 4.7 miles northwest of its junction with the Lower Chiles Valley Road. 230 Comment
  UC23463  Linanthus ciliatus Willis L. Jepson 1893-5-1 Napa Pope Valley grade from Calistoga; Napa River Basin Comment
  UC689684  Linanthus dichotomus Herbert L. Mason 1942-5-24 12540 Napa 3 mi s Pope Valley Store Comment
  HSC58977  Linanthus dichotomus subsp. meridianus G. E. Johnston 1974-4-4 1024 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS58118  Linanthus jepsonii E. V. Ferguson 1920-5-15 349 Napa Pope Valley Comment
  JEPS58113  Linanthus parviflorus W. L. Jepson 1904-6-3 2444 Napa Howell Mt. Napa Range 365 Comment
  JEPS110672  Lindernia anagallidea Jake Ruygt 1991-6-29 2742 Napa Doe Lake, Friesen's Lakes, Angwin 585 Comment
  CLARK-A1528-3206  Linum clevelandii John C. Roos 1939-5-13 266 Napa Angwin Comment
  CAS-BOT-BC430624  Lithophragma affine Carl B. Wolf 1928-5-3 1848 Napa base of Mt. St. Helena Comment
  JEPS110623  Lithophragma affine Jake Ruygt 1997-4-5 3824 Napa South of intersection of Butts Canyon Rd with James Creek Rd 207 Comment
  SFV8647  Lithophragma affine P. W. Fong 1971-5-1 57 Napa McDonald Ranch, about 20 miles northwest of intersection of State Highways 121 and 128 on Chiles Valley Road. North facing slope near top of small hill. 244 Comment
  CAS-BOT-BC435615  Lithophragma heterophyllum Carl B. Wolf 1928-5-3 1826 Napa Base of Mt. St. Helena Comment
  CAS-BOT-BC342249  Logfia filaginoides M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS20928  Logfia gallica W. L. Jepson 1938-5-20 18807 Napa slope above St. Helena Sanitorium; Howell Mts. Comment
  UC165833  Logfia gallica J. P. Tracy 1902-5-17 1519 Napa 3-4 m e of Angwin' (head of Moore's Creek); Howell Mountain,Moore's Creek 365 Comment
  JEPS104550  Lomatium repostum Jake Ruygt 1991-4-20 2626 Napa Friesen's Lakes, near Deer lake 597 Comment
  UC173178  Lomatium utriculatum Katharine Brandegee 1909-6-1 Napa summit Pope Valley Grade Comment
  JEPS12814  Lonicera interrupta W. L. Jepson 1898-1-4 Napa Howell Mt. Comment
  JEPS107210  Lotus micranthus Jake Ruygt 1991-5-4 2639 Napa betweed Fawn Lake and Granite Lake Friesen's Lakes 603 Comment
  SEINET7072565  Lotus micranthus A. G. Vestal 1963-5-12 s.n. Napa Howell Mountain Road. Coordinate datum: NAD 27. UTM Zone 10, 548701mE, 4271193mN. Comment
  UCR30812  Lotus micranthus John C. Roos 1939-4-16 315 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  CAS-BOT-BC201548  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1936-3-22 1131 Napa Howell Mt. Comment
  CAS-BOT-BC201559  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1939-4-8 s.n. Napa Howell Mt. Comment
  RSA26103  Lupinus albifrons var. albifrons H. C. Cantelow 1936-3-21 s.n. Napa Howell Mt. Comment
  HSC58983  Lupinus bicolor G. E. Johnston 1974-4-4 1019 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS107231  Lupinus bicolor Jake Ruygt 1982-4-25 1204 a Napa Aetna Springs below Swartz Canyon 246 Comment
  JEPS107233  Lupinus bicolor Jake Ruygt 1983-4-13 1695 Napa Pope Canyon Rd. just east of vernal marsh 188 Comment
  JEPS107235  Lupinus bicolor Jake Ruygt 1996-5-4 3655 Napa Butts Canyon Road at James Creek Road; SE field. 205 Comment
  UCD107265  Lupinus bicolor G. E. Johnston 1974-4-4 6119 Napa near Bell Canyon, near Angwin. 426 Comment
  RSA264961  Lupinus bicolor subsp. umbellatus George E. Johnston 1974-4-4 10739 Napa The collection was made near Bell Canyon. Near Angwin. 427 Comment
  UC127048  Lupinus formosus Willis L. Jepson 1893-9-24 Napa Angwin's Meadows, Howell Mt. Napa River Basin Comment
  JEPS65223  Lupinus formosus var. formosus Willis L. Jepson 1893-9-24 69 t Napa Angwin's Meadows Howell Mt. (Howell Mt.); Napa River Basin, , Angwin's Meadows Comment
  UCD107994  Lupinus latifolius D. E. Breedlove 1963-5-29 5053 Napa 4 miles S of Pope Valley. Comment
  JEPS107225  Lupinus latifolius var. latifolius Jake Ruygt 1991-5-11 2653 Napa 1 mile north of College Ave. on Howell Mountain Rd. 551 Comment
  JEPS107218  Lupinus microcarpus var. densiflorus Jake Ruygt 1980-4-22 838 Napa 1.3 miles east of Pope Valley Middle Rd. on Pope Canyon Rd. 187 Comment
  UCD108933  Lupinus nanus Craig Brauer 1974-4-15 7079 Napa the collection was made near Wallace Ranch. 188 Comment
  JEPS65423  Lupinus polyphyllus Willis L. Jepson 1893-6-26 24 t Napa Howell Mt.; Napa River Basin, Howell Mt., Angwin's Meadows Comment
  CAS-BOT-BC202226  Lupinus sericatus R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6666 Napa 3 mi. N. of Pacific Union College (Howell Mt.) on road to Aetna Springs Comment
  CAS-BOT-BC202230  Lupinus sericatus R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6666 Napa 3 mi. N. of Pacific Union College (Howell Mt.) on road to Aetna Springs Comment
  UC16013  Lupinus sericatus Willis L. Jepson 1896-2-22 Napa Howell Mt. beyond Angwin's Howell Mt.; Howell Mt. beyond Angwin's Comment
  UC527962  Lupinus sericatus R. Bacigalupi, R. S. Ferris, and I. L. Wiggins 1933-6-2 6666 Napa on road to Aetna Springs 3 mi n Pacific Union College (on Howell Mt.); n of Pacific Union College (on Howell Mt.) Comment
  JEPS67202  Luzula macrantha W. L. Jepson 1936-7-2 17641 Napa Angwin Meadow Napa Range, Howell Mountain Comment
  JEPS45950  Lythrum hyssopifolia Willis L. Jepson 1893-6-26 14093 Napa below New Eden (grade to Howell Mountain, Napa River Basin); Napa River Basin Comment
  JEPS45953  Lythrum hyssopifolia Willis L. Jepson 1893-6-26 14091 Napa Napa River Basin, Howell Mountain Howell Mountain; Napa River Basin, Howell Mountain Comment
  JEPS45959  Lythrum hyssopifolia Willis L. Jepson 1893-9-24 14085 Napa Napa River Basin, Howell Mt., Angwin's Meadows Angwin's Meadows; Napa River Basin, Howell Mt., Angwin's Meadows Comment
  UC127158  Lythrum hyssopifolia Harley P. Chandler Sep 7 1906-Sep 14 1906 7100 Napa Howell Mountain, Alta Loma Ranch Alta Loma Ranch; Howell Mountain, Alta Loma Ranch 487 Comment
  UC527943  Madia anomala R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6671 Napa 6 mi ne of Pacific Union College; Howell Mt., Aetna Springs Comment
  UC127121  Madia elegans Harley P. Chandler Sep 7 1906-Sep 14 1906 7131 Napa Howell Mountain Alta Loma Ranch 487 Comment
  CAS-BOT-BC344444  Madia exigua Peter H. Raven 1950-7-20 2378 Napa Howell Mtn., on nne side road to Pope Valley Comment
  POM263490  Madia exigua J. C. Roos 1939-5-13 267 Napa Angwin, Howell Mt. Comment
  JEPS40379  Madia gracilis W. L. Jepson 1938-5-24 18852 Napa Howell Mts. Napa Range 762 Comment
  UCD161280  Madia gracilis Jake Ruygt 2000-5-10 4245 -b Napa north Pope Valley, 0.4 miles from Pope Creek. (Coordinates estimated by label maker at UC Davis). 207 Comment
  CDA11428  Madia nutans G. F. Hrusa, M. Tu 1995-5-6 12151 Napa North Coast Biodiversity Arena; on Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  CLARK-A1528-2006  Madia nutans John C. Roos 1939-4-16 258 Napa Angwin Comment
  GH414745  Madia nutans J. C. Clausen 1935-5-23 1072 Unknown Howell Mountain, near summit, 6.5 mi. N.E. of St. Helena Comment
  LA203824  Madia nutans J. Clausen; 1935-5-23 1072 Napa Howell Mountain, near summit 6.5 mi. N.E. of St. Helena Comment
  POM263489  Madia nutans J. C. Roos 1939-4-16 258 Napa Angwin. Comment
  POM298345  Madia nutans Jens Clausen 1935-5-23 1072 Napa Howell Mountain, near sumit, 6.5 miles NE of St. Helena Comment
  RSA104111  Madia nutans Jens Clausen 1935-5-23 1072 Napa Howell Mountain, near sumit, 6.5 miles NE of St. Helena Comment
  POM262794  Medicago arabica J. C. Roos 1939-5-2 292 Napa Angwin Comment
  UCR23895  Medicago arabica John C. Roos 1939-5-2 292 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  JEPS122951  Melica californica Jake Ruygt 1984-5-3 1540 Napa Bell Canyon. Quad: Saint Helena. Comment
  UCR30549  Melica californica John C. Roos 1939-5-14 269 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  POM262893  Melica californica var. nevadensis J. C. Roos 1939-4-15 319 Napa Pope Valley. Comment
  POM263002  Melica geyeri J. C. Roos 1939-5-12 317 Napa Angwin, Howell Mtn., Napa Range. Comment
  UCD87300  Melica geyeri Collector Unknown 1928-4-15 s.n. Napa Blake College -- east of Pacific Union College. Comment
  UCR30546  Melica geyeri John C. Roos 1939-5-12 317 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  CAS-BOT-BC264210  Melica torreyana M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CAS-BOT-BC264218  Melica torreyana D. H. Esplin; Bolander 1969-4-30 19 Napa Pope Valley near Lake Berryessa 121 Comment
  JEPS75644  Melica torreyana W. L. Jepson 1936-5-31 17576 Napa La Jota; Napa Range, Howell Mt. Comment
  UC126552  Melissa officinalis Harley P. Chandler Sep 7 1906-Sep 14 1906 7107 Napa Alta Loma Ranch, Howell Mt. Howell Mt., Alta Loma Ranch 487 Comment
  UC1239690  Mentha spicata Joseph P. Tracy 1899-7-3 403 Napa on hills at head of Moore's Creek Howell Mountain (3-4 mi e of Angwin's); Northern Coast Ranges, Moore's Creek, Howell Mountain 335 Comment
  CAS-BOT-BC428853  Micranthes californica Carl B. Wolf 1928-5-3 1839 Napa Base of Mt. St. Helena Comment
  JEPS106898  Micropus amphibolus Jake Ruygt 1991-5-18 2675 b Napa Fawn Lake, Friesen's Lakes, Angwin 597 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
  CAS-BOT-BC348545  Micropus californicus var. californicus John Thomas Howell 1929-5-30 4274 Napa 2 miles west of Samuels Springs on Pope Valley Creek, Napa Range Comment
  CAS-BOT-BC348548  Micropus californicus var. californicus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CAS-BOT-BC348966  Microseris douglasii subsp. douglasii M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CAS-BOT-BC349100  Microseris douglasii subsp. tenella M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  CDA11431  Mimulus angustatus G. F. Hrusa, M. Tu 1995-5-6 12154 Napa North Coast Biodiversity Arena; Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  CDA41679  Mimulus angustatus S. E. Schoenig 1998-6-5 98 -22 Napa 20 meters east of Ink Grade Road, 0.5 mile northwest of intersection with Howell Mountain Road. Comment
  UC1778559  Mimulus angustatus S. E. Schoenig 1998-6-5 98 -22 Napa 20 meters E of Ink Grade Rd., 0.5 miles NW of intersection with Howell Mtn Rd. 548 Comment
  UC26857  Mimulus angustatus Willis L. Jepson 1893-5-8 Napa Angwin's Meadow Napa River Basin, Howell Mt. Comment
  UCD85031  Mimulus angustatus Dena Grossenbacher 2009-5-14 990 Napa Along east side of Ink Grade Road about 0.3 miles north of junction with Howell Mountain Road. 557 Comment
  HSC72431  Mimulus aurantiacus var. aurantiacus J. P. Smith, J. O. Sawyer 1970-5-17 3774 Napa 3 mi. S of Pope Valley Comment
  JEPS10222  Mimulus aurantiacus var. aurantiacus W. L. Jepson 1904-6-3 2449 Napa Howell Mt. Napa Range Comment
  HSC58981  Mimulus guttatus G. E. Johnston 1974-4-4 1023 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS10934  Mimulus inodorus Willis L. Jepson 1893-6-26 47 m Napa Angwin Meadows Napa River Basin, Howell Mt. Comment
  UC27065  Mimulus inodorus Willis L. Jepson 1895-11-26 Napa Angwin's Meadow Napa River Basin Comment
  CDA41703  Mimulus layneae S. E. Schoenig 1998-6-5 98 -23 Napa 20 meters east of Ink Grade Road, 0.5 mile northwest of intersection with Howell Mountain Road. Comment
  UC1778558 Image available Mimulus layneae S. E. Schoenig 1998-6-5 98 -23 Napa 20 meters E of Ink Grade Rd., 0.5 miles NW of intersection with Howell Mtn Rd. 548 Comment
  UCD85032  Mimulus layneae Dena Grossenbacher 2009-5-14 991 Napa Along east side of Ink Grade Road about 0.3 miles north of junction with Howell Mountain Road. 557 Comment
  JEPS11442  Mimulus microphyllus Willis L. Jepson 1893-5-8 10 m Napa La Jota Plateau Napa River Basin, Howell Mountain Comment
  JEPS110582  Mimulus nasutus Jake Ruygt 1982-4-25 1203 Napa Swartz Canyon 381 Comment
  UC131116  Mimulus nasutus Katharine Brandegee 1909-6-1 Napa Pope Valley grade from Calistoga Comment
  CDA11430  Mimulus pulsiferae G. F. Hrusa, M. Tu 1995-5-6 12153 Napa North Coast Biodiversity Arena; Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  CDA41826  Mimulus pulsiferae S. E. Schoenig 1998-6-5 98 -24 Napa 20 meters east of Ink Grade Road, 0.5 mile northwest of intersection with Howell Mountain Road. Comment
  UC1778557 Image available Mimulus pulsiferae S. E. Schoenig 1998-6-5 98 -24 Napa 20 meters E of Ink Grade Rd., 0.5 miles NW of intersection with Howell Mtn Rd. 548 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
  POM126651  Monardella viridis Katherine Brandegee s.n. Napa Angwin s Comment
  JEPS126063  Myriophyllum hippuroides Jake Ruygt 2010-8-5 5688 Napa Small lake south of Wild Lake. Saint Helena 7.5' Quad. Comment
  SEINET201032  Nassella lepida Joseph P. Tracy 1933-6-2 12466 Napa Howell Mountain Road 5 mi east of St. Helena 305 Comment
  UCD149687  Nassella lepida Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  SEINET201034  Nassella pulchra J. P. Tracy 1902-5-21 1581 Napa Head of Moore's Creek 3-4 miles E of Angwin's. 457 Comment
  HSC58998  Navarretia cotulifolia Tim Excell 1975-5-21 119 Napa Near Pope Creek, close to the town of Pope Valley 183 Comment
  JEPS120361  Navarretia cotulifolia Jake Ruygt 1982-5-19 1283 Napa 2 miles south of Walter Springs bridge on Pope Canyon Road. Aetna Springs 7.5' Quad. Comment
  JEPS70270  Navarretia cotulifolia Joseph Andorfer Ewan 1934-4-30 8857 Napa e end Pope Valley Comment
  JEPS112536  Navarretia heterodoxa Jake Ruygt 1991-6-10 2717 Napa above Cooksley Lake toward Summit Lake Dr., Angwin 725 Comment
  UC1177371  Navarretia heterodoxa Peter H. Raven 1950-6-20 2391 Napa on nne side Howell Mtn. (road to Pope Valley) Comment
  UC143008  Navarretia heterodoxa Mrs. K. Brandegee 1910-7-28 139 Napa Angwin Comment
  UC23628  Navarretia heterodoxa Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  UC143015  Navarretia intertexta Katharine Brandegee 1910-7-27 Napa near Angwin's Comment
  JEPS112531  Navarretia jepsonii Jake Ruygt 1993-5-22 3264 Napa on private road across from James Creek Rd at Butts Canyon Rd 207 Comment
  JEPS112560  Navarretia leucocephala subsp. bakeri Jake Ruygt 1996-5-19 3709 Napa Between Barnett Road and Pope Valley Rd 201 Comment
  JEPS95201  Navarretia leucocephala subsp. bakeri Jake Ruygt 1996-5-19 3709 Napa between Barnett Rd and Pope Valley Rd 201 Comment
  HSC2254  Navarretia mellita Katherine Brandegee 1910-7-26 Napa Pope Valley Comment
  POM64976  Navarretia mellita Katherine Brandegee 1910-7-26 s.n. Napa Pope Valley Comment
  UC1177372  Navarretia mellita Peter H. Raven 1950-6-20 2390 Napa nne side Howell Mtn. (road to Pope Valley) Comment
  UC155179  Navarretia mellita Katharine Brandegee 1910-7-20 Napa Pope Valley Comment
  CAS-BOT-BC232668  Navarretia pubescens R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6669 Napa 6 miles NE of Pacific Union College (Howell Mountain) on road to Aetna Springs Comment
  UC130855  Navarretia pubescens Katharine Brandegee 1909-6-1 Napa grade from Calistoga Pope Valley Comment
  UC527938  Navarretia pubescens R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6669 Napa 6 mi ne Pacific Union College (on road to Aetna Springs); Howell Mt. Comment
  JEPS70448  Navarretia squarrosa Willis L. Jepson 1893-9-24 20948 Napa Angwin's Meadow Napa River Basin, Howell Mt. Comment
  UC142969  Navarretia squarrosa Katharine Brandegee 1910-7-26 Napa Pope Valley Comment
  JEPS110945  Navarretia tagetina Jake Ruygt 1986-5-24 1784 Napa Butts Canyon Rd. at Ink Grade 237 Comment
  JEPS70479  Navarretia tagetina W. L. Jepson 1930-10-19 15689 Napa Pope Valley Comment
  JEPS70480  Navarretia tagetina Willis L. Jepson 1893-6-26 15027 Napa Howell Mt. Napa River Basin Comment
  CAS-BOT-BC219371  Nemophila Saichi Kawahara 1968-4-20 342 Napa Chiles-Pope Valley Road, 2 miles south of Pope Valley 259 Comment
  JEPS110863  Nemophila heterophylla Jake Ruygt 1981-4-4 966 Napa Bell Canyon 353 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
  UC545848  Nemophila menziesii E. Crum 1936-3-15 1737 Napa Chiles Valley Road 3.2 mi from Pope Valley Store; Chiles Valley Road <nr> Pope Valley Store Comment
  UC545857  Nemophila menziesii E. Crum 1936-3-15 1738 Napa Chiles Valley Road 3.2 mi from Pope Valley Store; Chiles Valley Road <nr> Pope Valley Store Comment
  UCD120214  Nemophila menziesii G. F. Hrusa; S. Larson 1995-4-10 12063 Napa Along Chiles Valley/Pope Valley Rd. approx. 2 m. S of Pope Canyon Rd. intersection. North Coast Biodiversity Arena. 175 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
  UCD82053  Nemophila menziesii Robin McMaster 1972-4-22 69 Napa Pope Valley. Comment
  UCR267439  Nemophila menziesii Stephen P. Rae, Ayzik Solomeshch 2006-4-25 s.n. Napa Howell Mountain Plateau, c. 1 km west of Anguin; McCrane property 526 Comment
  CDA11624  Nemophila menziesii var. atomaria G. F. Hrusa, S. Larson 1995-4-1 12063 Napa North Coast Biodiversity Arena; Along Chiles Valley/Pope Valley Rd. approx 2 m. S of Pope Canyon Rd. intersection. Comment
  UCR12042  Nemophila menziesii var. atomaria Coleta A. Lawler 1970-1 253 Napa North Coast Range, Chiles-Pope Road, 3.3 mi. south of Pope Valley 198 Comment
  JEPS110844  Nemophila menziesii var. menziesii Jake Ruygt 1996-3-23 3531 Napa .3 mile from Pope Canyon Road on Hardin Road, near airstrip. 184 Comment
  JEPS110845  Nemophila menziesii var. menziesii Jake Ruygt 1994-4-16 3352 Napa North end of Chiles Valley near Chiles- Pope Valley Road. 228 Comment
  JEPS110846  Nemophila menziesii var. menziesii Jake Ruygt 1998-4-18 3910 Napa Pope Valley, N of intersection of Pope Canyon Rd X Hardin Rd 182 Comment
  POM263485  Nemophila menziesii var. menziesii J. C. Roos 1939-3-31 308 Napa Angwin. Howell Mtns. Comment
  POM264589  Nemophila menziesii var. menziesii J. C. Roos 1939-3-31 309 Napa Angwin. Howell Mtns. Comment
  POM289744  Nemophila menziesii var. menziesii Ethel Crum 1936-3-15 1738 Napa Chiles Valley Road, 3.2 miles from Pope Valley store. Comment
  UC1196160  Nicotiana acuminata var. multiflora Joseph P. Tracy 1899-7-10 404 Napa 3 to 4 mi e Angwin's (La Jota Plateau, on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, La Jota Plateau 518 Comment
  UCD110200  Notholithocarpus densiflorus D. Sanchez-Mata 1996-6-22 s.n. Napa Pope Valley-Napa Valley. 520 Comment
  UCD148741  Notholithocarpus densiflorus Jake Ruygt 2002-9-6 4456 Napa Napa County, Angwin; Summit Lake Drive about 1 mile north of White Cottage Rd. 832 Comment
  JEPS129065  Nymphaea odorata Jake Ruygt 1991-7-20 2778 Napa Doe Lake, Friesen's Lakes, Angwin. Saint Helena 7.5' Quad. Comment
  UC126482  Oenothera elata subsp. hirsutissima Harley P. Chandler Sep 7 1906-Sep 14 1906 7135 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCR23341  Onychium densum John C. Roos 1938-12-10 286 Napa North Coast Range, Blake's Canyon, Pacific Union College, Angwin Comment
  CAS-BOT-BC238388  Orthocarpus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  POM182685  Orthocarpus pusillus D. D. Keck 1931-4-3 1072 Napa Pope Valley P.O. Comment
  JEPS23644  Packera clevelandii W. L. Jepson 1916-8-6 6838 Napa Howell Mt. Comment
  UCD133504  Packera eurycephala Beecher Crampton 1962-5-16 6427 Napa 0.75 mile E of Aetna Springs. Comment
  UCD37945  Packera eurycephala Beecher Crampton 1962-5-16 6427 Napa 0.75 mile E of Aetna Springs. Comment
  CAS-BOT-BC316874  Packera eurycephala var. eurycephala Dennis E. Breedlove 1963-5-29 5061 Napa 4.5 miles north of Pope Valley Comment
  CAS-BOT-BC316876  Packera eurycephala var. eurycephala T. M. Barkley; N. D. Burroughs 1964-6-19 300 Napa on road between Aetna Springs and junction of Pope Valley-Middletown Road; one mile east of Aetna Springs Comment
  CAS-BOT-BC316878  Packera eurycephala var. eurycephala Peter Raven 1950-6-20 2397 Napa Dry vernal flats between Pope Valley P. O. & Aetna Springs Comment
  JEPS17411  Packera eurycephala var. eurycephala W. L. Jepson 1938-5-22 18835 Napa Pope Valley Comment
  JEPS81214  Packera eurycephala var. eurycephala Douglas W. James Jr. 1973-5-5 97 Napa near, not far from road that runs through the ranch MacDonald Ranch property line; Las Posadas State Forest, Pope Valley 411 Comment
  UCD89576  Panicum dichotomiflorum Beecher Crampton 1958-8-18 s.n. Napa Pope Valley. Comment
  UCR23701  Parvisedum pumilum John C. Roos 1939-4-18 296 Napa North Coast Range, Deer Lake. [near] Pacific Union College, Angwin 610 Comment
  UC917153  Pedicularis densiflora D. C. Finfrock 1950-4-2 17 Napa 7.2 mi from St. Helena (on road to Pope Valley) Comment
  UCD123314  Pedicularis densiflora D. C. Finfrock 1950-4-2 17 Napa 7.2 miles from St.Helena on road to Pope Valley. Comment
  UCD123329  Pedicularis densiflora H. Popenoe 1949-5-1 18 Napa 1 mile from Pacific Union College, beside road to Pope Valley. Comment
  UCR20384  Pedicularis densiflora D. V. Hemphill, J. C. Roos 1949-4-16 4289 Napa North Coast Range, Pacific Union College, Howell Mountain 499 Comment
  UCSB19025  Pedicularis densiflora Rankine, Jane 1965-4-13 Napa 3 miles W of Pope Valley on road between Pope Valley and Anqwin Comment
  UC1301208  Penstemon heterophyllus Helen K. Sharsmith 1962-6-3 5113 Napa near Angwin; San Francisco Bay Region, western slope Mount Howell 487 Comment
  POM204007  Penstemon heterophyllus subsp. heterophyllus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS7566  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1904-6-3 2446 Napa Howell Mt. , Howell Mt. (Napa Range) Comment
  UC185341  Penstemon heterophyllus var. heterophyllus Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  UC397392  Penstemon heterophyllus var. purdyi Katharine Brandegee 1910-7-27 Napa Angwin's Comment
  UCD161320  Perideridia gairdneri subsp. gairdneri Jake Ruygt 1979-7-21 756 Napa 0.9 miles east of Cold Springs Road on Los Posados Road. (Coordinates estimated by label maker at UC Davis). 521 Comment
  UC126553  Perideridia kelloggii Harley P. Chandler Sep 7 1906-Sep 14 1906 7102 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC131126  Phacelia egena Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  UC131125  Phacelia imbricata Katharine Brandegee 1909-6-1 Napa from Calistoga Pope Valley grade Comment
  JEPS122960  Phalaris lemmonii Jake Ruygt 1996-5-13 3652 Napa 0.9 miles south of Pope Canyon Road on Harding Road. Quad: Saint Helena. Comment
  JEPS44811  Physocarpus capitatus W. L. Jepson 1895-11-26 13847 Napa La Jota Plateau Howell Mt Comment
  JEPS65582  Pickeringia montana var. montana W. L. Jepson 1904-6-3 2439 Napa Howell Mt. Comment
  UC17042  Pickeringia montana var. montana Willis L. Jepson 1896-2-23 Napa La Jota Falls Napa River Basin, Howell Mt. Comment
  JEPS103974  Pilularia americana Jake Ruygt 1996-5-19 3712 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS120364  Pinus ponderosa Jake Ruygt 1979-4-23 551 Napa 0.1 mile NW of Howell Mountain Road, on Hill Road. Saint Helena 7.5' Quad. Comment
  JEPS46900  Pinus sabiniana W. L. Jepson, W. A. Setchell 1896-1 Napa Howell Mt. Comment
  JEPS122738  Plagiobothrys bracteatus Jake Ruygt 2011-5-7 5773 Napa Pope Valley, Pope Canyon Road at vernal marsh. Quad: St. Helena. Comment
  JEPS60936  Plagiobothrys bracteatus Willis L. Jepson 1893-6-26 21171 Napa Howell Mt. Napa River Basin Comment
  UCR205996  Plagiobothrys bracteatus Jake Ruygt 1996-5-13 3667 Napa 0.9 mi south of Pope Canyon Road on Hardin Road 184 Comment
  JEPS129132  Plagiobothrys cognatus Jake Ruygt 2011-5-7 5777 Napa Mill Valley near Angwin; central portion. Saint Helena 7.5' Quad. Comment
  UC24553  Plagiobothrys cusickii Willis L. Jepson 1893-5-8 Napa Angwin's Meadow Napa River Basin, Howell Mt. Comment
  JEPS106767  Plagiobothrys greenei Jake Ruygt 1980-4-22 837 Napa .5 miles west of Pope Valley Rd. on Barnett Rd. 201 Comment
  JEPS106764  Plagiobothrys nothofulvus Jake Ruygt 1996-5-19 3715 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  SBBG115362  Plagiobothrys nothofulvus B. Crampton 1962-5-16 6426 Napa 1 mi E of Aetna Springs Comment
  UCD149697  Plagiobothrys nothofulvus Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD39034  Plagiobothrys nothofulvus Beecher Crampton 1962-5-16 6426 Napa 1 mile E of Aetna Springs. Comment
  JEPS106903  Plagiobothrys tenellus Jake Ruygt 1991-5-4 2640 Napa betweed Fawn Lake and Granite Lake Friesen's Lakes 603 Comment
  UCD74383  Plagiobothrys undulatus Jake Ruygt 1991-8-10 2828 Napa Fawn Lake, Friesen's Lakes, Angwin. 582 Comment
  HSC58979  Platystemon californicus G. E. Johnston 1974-4-4 1022 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS110775  Platystemon californicus Jake Ruygt 1998-4-18 3909 Napa Pope Valley, N of intersection of Pope Canyon Rd X Hardin Rd 182 Comment
  JEPS110776  Platystemon californicus Jake Ruygt 1979-4-6 490 Napa 2.3 miles north of Howell Mtn. Rd. on Butts Canyon Rd. 225 Comment
  JEPS110777  Platystemon californicus Jake Ruygt 1996-5-4 3642 Napa Butts Canyon Road at James Creek Road; field to SE. 210 Comment
  JEPS122745  Platystemon californicus Jake Ruygt 2011-5-7 5782 Napa Mill Valley near Angwin; central portion. Quad: St. Helena. Comment
  UCD82051  Platystemon californicus Robin McMaster 1972-4-22 66 Napa Pope Valley. Comment
  UCD96055  Platystemon californicus G. E. Johnston 1974-4-4 6115 Napa near Bell Canyon, Angwin. 426 Comment
  RSA264959  Platystemon californicus var. californicus George E. Johnston 1974-4-4 6115 Napa The collection was made near Bell Canyon. Near Angwin. 427 Comment
  JEPS110898  Plectritis brachystemon Jake Ruygt 1996-5-19 3720 Napa Chiles valley at east end of large meadow. 228 Comment
  JEPS110901  Plectritis ciliosa subsp. insignis Jake Ruygt 2003-3-22 4474 Napa Ink Grade, about 1 mi W of Pope Valley Road 280 Comment
  POM263492  Plectritis ciliosa subsp. insignis J. C. Roos 1939-3-27 263 Napa Pope Valley Comment
  JEPS110895  Plectritis macrocera Jake Ruygt 1979-5-20 613 Napa 1.6 miles north of White Cottage Rd. on Summit Street 694 Comment
  UC28849  Plectritis macrocera Willis L. Jepson 1893-5-8 Napa Napa River Basin, Howell Mountain, Angwin's Howell Mountain; Napa River Basin, , Angwin's Comment
  UCR27515  Plectritis macrocera John C. Roos 1939-3-27 263 Napa North Coast Ranges, Pope Valley Comment
  UC767873  Pleuropogon californicus var. californicus R. F. Hoover 1941-4-26 4923 Napa Pope Valley Comment
  JEPS122931  Poa howellii Jake Ruygt 1984-5-5 1542 Napa Bell Canyon Creek. Quad: Saint Helena. Comment
  CAS-BOT-BC255949  Poa pratensis Peter H. Raven 1951-5-26 2890 Napa Howell Mtn. above Pope Valley 304 Comment
  CDA11432  Poa secunda G. F. Hrusa, M. Tu 1995-5-6 12155 Napa North Coast Biodiversity Arena; Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  UCD92438  Poa secunda subsp. juncifolia W. E. Wood 1928-4-15 s.n. Napa Blake Estate, Pacific Union College, St. Helena. Comment
  JEPS76089  Poa secunda subsp. secunda W. L. Jepson 1938-5-24 18844 Napa plateau n of Four Corners (Howell Mt); Napa Range 762 Comment
  JEPS110822  Pogogyne douglasii Jake Ruygt 1982-6-13 1320 Napa Pope Canyon Rd. near large vernal marsh 187 Comment
  JEPS62446  Pogogyne douglasii W. L. Jepson 1897-7-12 14907 Napa Pope Valley Comment
  RSA83437  Pogogyne douglasii J. T. Howell 1929-5-30 4278 Napa 3 miles from Pope Valley Store on road to Pope Creek Canyon, Napa Range Comment
  UC1988909  Pogogyne douglasii John Thomas Howell 1929-5-30 4278 Napa 3 miles from Pope Valley on road to Pope Creek Canyon Comment
  UC1988913  Pogogyne douglasii John Thomas Howell 1929-8-4 4870 Napa three miles from Pope Valley Store on road to Pope Creek Canyon. Same locality as No. 4278 Comment
  UCD77928  Pogogyne douglasii Robert E. Preston 2002-6-17 1821 Napa Pope Valley, along Pope Canyon Rd, 0.5 mi N of its jct with Pope Valley Cross Rd. 187 Comment
  JEPS110820  Pogogyne serpylloides Jake Ruygt 1994-5-17 3377 Napa Bennett Lane, Butts Canyon Road; Juliana Vineyards 252 Comment
  JEPS110838  Pogogyne serpylloides Jake Ruygt 1986-4-13 1693 Napa Pope Canyon Rd. just east of vernal marsh 187 Comment
  JEPS122744  Pogogyne serpylloides Jake Ruygt 2011-5-7 5780 Napa Mill Valley near Angwin; central portion. Quad: St. Helena. Comment
  UCR23626  Pogogyne serpylloides John C. Roos 1939-4-29 291 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCR30826  Polygala californica John C. Roos 1939-4-18 313 Napa North Coast Range, Pacific Union College; Angwin 549 Comment
  JEPS112598  Polygonum amphibium var. emersum Jake Ruygt 1991-8-8 2829 Napa east side of Lake Orville, Friesen's Lakes, Angwin 557 Comment
  JEPS51314  Polygonum aviculare subsp. aviculare Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  JEPS51315  Polygonum aviculare subsp. aviculare W. L. Jepson 1893-6-26 Napa Howell Mt. Napa Range Comment
  CAS-BOT-BC109158  Polygonum bolanderi T. S. Brandegee 1888-9-1 s.n. Napa Howell Mountain. Comment
  CAS-BOT-BC109159  Polygonum bolanderi H. E. McMinn 1922-6-7 194 Napa Howell Mountain. Comment
  GH364762  Polygonum bolanderi Brandegee 1888-09-01 - 1888-10-01 Unknown Howell Mt. 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
  POM263036  Polygonum bolanderi J. C. Roos 1938-11-12 320 Napa In rocky place, Angwin, Napa Range. Comment
  UC1281017  Polygonum bolanderi H. E. McMinn 1922-6-7 194 Napa Mt. Howell Comment
  UCR30824  Polygonum bolanderi John C. Roos 1938-11-12 320 Napa North Coast Range, Pacific Union College, Angwin, near the falls Comment
  CAS-BOT-BC414386  Polygonum californicum John Thomas Howell 1930-10-19 5610 Napa 1 mile east of Aetna Springs, Pope Valley Comment
  CAS-BOT-BC414387  Polygonum californicum John Thomas Howell 1930-10-19 5610 Napa 1 mile east of Aetna Springs, Pope Valley Comment
  JEPS50595  Polygonum californicum W. L. Jepson 1930-10-19 15687 Napa Pope Valley Comment
  JEPS112593  Polygonum hydropiperoides Jake Ruygt 1991-7-20 2771 Napa Lake Orville, Friesen's Lakes, Angwin 563 Comment
  JEPS50624  Polygonum lapathifolium Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin, Howell Mountain Comment
  JEPS50631  Polygonum lapathifolium Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin Comment
  JEPS50655  Polygonum punctatum Willis L. Jepson 1893-9-24 14801 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  UC126475  Polygonum punctatum Harley P. Chandler Sep 7 1906-Sep 14 1906 7110 Napa Alta Loma Ranch Howell Mountain 487 Comment
  HSC26626  Polypogon interruptus J. P. Smith, J. O. Sawyer 1970-5-17 3776 Napa 3 mi. S of Pope Valley 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-BC151178  Prunus subcordata Mrs. H. C. Cantelow 1936-3-22 1140 Napa Howell Mt. Comment
  POM262889  Prunus subcordata J. C. Roos 1939-3-31 307 Napa Angwin. Howell Mtns. Comment
  UCR23507  Prunus subcordata John C. Roos 1939-3-31 307 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  JEPS20434  Pseudognaphalium beneolens W. L. Jepson 1938-9-22 19017 Napa Howell Mt. Comment
  UC127187  Pseudognaphalium thermale Harley P. Chandler Sep 7 1906-Sep 14 1906 7108 Napa Alta Loma Ranch Howell Mountain 487 Comment
  RSA195368  Pseudotsuga menziesii Gilbert Muth 1967-2-12 528 Napa Below Martin Springs. 439 Comment
  JEPS48292  Pseudotsuga menziesii var. menziesii W. L. Jepson 1900-3-10 511 Napa Howell Mt. Comment
  UC35749  Psilocarphus tenellus Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  JEPS37946  Quercus W. L. Jepson 1916-8-6 6825 Napa Howell Mt. Comment
  POM262790  Quercus X morehus J. C. Roos 1939-4-16 281 Napa Angwin, Howell Mtn. Comment
  UCR23941  Quercus X morehus John C. Roos 1939-4-16 281 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  A356996  Quercus agrifolia Miss A. Manning 1894-9-22 134 Unknown Howell Mt. Comment
  CLARK-A1528-2916  Quercus agrifolia John C. Roos 1939-4-16 283 Napa Angwin Comment
  UC126507  Quercus berberidifolia Harley P. Chandler Sep 7 1906-Sep 14 1906 7154 Napa Alta Loma Ranch Howell Mountain 487 Comment
  RSA444489  Quercus chrysolepis J. C. Roos 1939-5-14 255 Napa Pacific Union College, Anguin. Comment
  UCD45347  Quercus chrysolepis D. Sanchez-Mata 1996-6-22 s.n. Napa Pope Valley-Napa Valley. Angwin. Quercus wislizenii forests. 520 Comment
  UCD83394  Quercus chrysolepis Jake Ruygt 1991-5-4 2636 Napa Friesen's Lakes, Lake Henne. 548 Comment
  JEPS116541  Quercus douglasii Jake Ruygt 1996-5-4 3644 Napa Butts Canyon Road at James Creek Road; field to SE. Aetna Springs 7.5' Quad. Comment
  POM263157  Quercus douglasii J. C. Roos 1939-3-27 280 Napa Pope Valley Comment
  A344755  Quercus dumosa Miss A. Manning 1894-9-22 104 Unknown Howell Mt. Comment
  JEPS37800  Quercus dumosa W. L. Jepson 1938-9-28 19042 Napa La Jota Mesa Howell Mts. Comment
  JEPS46658  Quercus dumosa W. L. Jepson 1896-2-23 Napa Howell Mt. Comment
  CAS-BOT-BC79838  Quercus durata C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC79847  Quercus durata H. E. McMinn 1922-6-8 167 Napa summit 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
  JEPS37346  Quercus durata W. L. Jepson 1895-11-25 Napa La Jota Plateau Howell Mt. Comment
  UCD40324  Quercus durata Rodney Gale Myatt 1971-6-27 769 Napa Ink Grade Road near the town of Angwin, and northeast of St. Helena. 487 Comment
  UCD45889  Quercus durata Beecher Crampton 1962-10-9 6704 Napa 7 miles north of Conn Reservoir (Lake Hennessy), Pope Valley Road. Comment
  SBBG111357  Quercus durata var. durata J. M. Tucker, G. L. Stebbins 1950-11-5 2007 -33 Napa Howell Mtn, N of St Helena Comment
  A344937  Quercus garryana W. L. Jepson 1916-8-6 6833 Unknown Howell Mt. Comment
  JEPS37948  Quercus garryana W. L. Jepson 1916-8-6 6833 Napa Howell Mt. Comment
  SFV17797  Quercus garryana J. M. Tucker 1950-11-5 2005 5 Napa Yard on outskirts of Angwin on Howell Mountain. Comment
  UCD46113  Quercus garryana W. L. Jepson 1916-8-6 6825 Napa Howell Mt. Comment
  UCD46206  Quercus garryana John M. Tucker 1950-11-5 2005 1 Napa California, Napa Co.; near Angwin, on Howell Mountain, beside road from Pope Valley. (Collections made from 8 trees). Comment
  JEPS100413  Quercus garryana var. garryana Dean Wm. Taylor with Glenn Clifton 1990-10-30 11570 Napa Angwin, along Clark Way North Coast Ranges Comment
  JEPS37824  Quercus garryana var. garryana W. L. Jepson 1916-8-6 6830 Napa Howell Mt. Comment
  UCD46082  Quercus garryana var. garryana W. L. Jepson 1916-8-6 6833 Napa Howell Mt. Comment
  UCSB19167  Quercus garryana var. garryana Rankine, Jane 1965-4-13 Napa 3 miles west of Pope Valley on the road between Pope Valley and Anqwin Comment
  CAS-BOT-BC105301  Quercus kelloggii Paul F. Covel 1940-4-28 1708 Napa Near Pacific Union College Comment
  JEPS37754  Quercus kelloggii W. L. Jepson 1896-2-22 14829 Napa Howell Mt. Comment
  UCSB19168  Quercus kelloggii Rankine, Jane 1965-4-13 Napa 3 miles west of Pope Valley on the road between Pope Valley and Anqwin Comment
  A343186  Quercus lobata Miss A. Manning 1894-9-22 174 Unknown Howell Mt. Comment
  CAS-BOT-BC62880  Quercus lobata John Thomas Howell 1930-10-19 5608 Napa Pope Valley School, Pope valley Comment
  JEPS116539  Quercus lobata Jake Ruygt 1988-5-1 2164 Napa Aetna Springs Road near resort. Aetna Springs 7.5' Quad. Comment
  POM262791  Quercus lobata J. C. Roos 1939-3-27 282 Napa Angwin, Howell Mountains. Comment
  UCD83400  Quercus lobata Jake Ruygt 1996-5-4 3643 Napa Butts Canyon Rd. at James Creek Rd.; field to SE. 210 Comment
  A343638  Quercus wislizeni Miss A. Manning 1894-9-22 99 Unknown Howell Mt. Comment
  CLARK-A1528-2913  Quercus wislizeni John C. Roos 1939-4-16 284 Napa Angwin Comment
  JEPS37797  Quercus wislizeni W. L. Jepson 1938-9-28 19045 Napa La Jota Mesa Howell Mt. Comment
  HSC59003  Ranunculus arvensis Dan Wyrick 1975-4-22 217 Napa Near Pacific Union College 549 Comment
  JEPS55166  Ranunculus californicus W. L. Jepson 1904-6-3 2445 Napa Howell Mt. Comment
  POM263164  Ranunculus muricatus J. C. Roos 1939-4-18 314 Napa Howell Mountain, Angwin. Comment
  UCR30447  Ranunculus muricatus John C. Roos 1939-4-18 s.n. Napa North Coast Range, Pacific Union College; Angwin 549 Comment
  UCD149702  Ranunculus occidentalis Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  OBI14977  Raphanus raphanistrum R. L. Hoover 1968-4-20 54 Napa .25 mi from Pope Valley jctn, E on Chiles & Pope Valley Rd, in field E of service station Comment
  JEPS42004  Rhamnus crocea W. L. Jepson 1916-12-5 6588 Napa Howell Mt. Comment
  UCD117984  Rhododendron occidentale W. R. Russell; A. D. Graham 1954-5-7 s.n. Napa Between Pope Valley Store and Lake County line, Upper Chiles Valley. Comment
Read comments
Mar 21 2013
  CAS-BOT-BC200042  Rhododendron occidentale var. occidentale H. E. McMinn 1922-6-8 169 Napa Near summit of Howell Mt. Comment
  CDA32770  Rhododendron occidentale var. occidentale G. F. Hrusa, T. D. Wilfred 1992-5-26 9488 Sonoma Outer North Coast Ranges; Kortum Canyon Rd., near its intersection with Hwy 29 in town of Calistoga. 121 Comment
  RSA471014  Rhododendron occidentale var. occidentale H. E. McMinn 1922-6-8 169 Napa Howell Mt. Comment
  JEPS49457  Ribes roezlii var. cruentum Katharine Brandegee 1909-6-1 Napa summit of Pope Valley Grade from Calistoga; Napa Range, Pope Valley Grade Comment
  UC126646  Rosa californica Harley P. Chandler Sep 7 1906-Sep 14 1906 7115 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC148155  Rosa gymnocarpa Peter H. Raven 1952-5-26 4049 Napa Howell Mt. 426 Comment
  JEPS45681  Rosa gymnocarpa W. L. Jepson 1896-2-23 13892 Napa on grade beyond Angwins (e side of mt.); Howell Mt., Pope Valley Grade Comment
  UC126647  Rosa gymnocarpa Harley P. Chandler Sep 7 1906-Sep 14 1906 7112 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC126648  Rosa gymnocarpa Harley P. Chandler Sep 7 1906-Sep 14 1906 7114 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC126649  Rosa gymnocarpa Harley P. Chandler Sep 7 1906-Sep 14 1906 7113 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC1281126  Rosa gymnocarpa H. E. McMinn 1936-4-4 4381 Napa about six mi from Angwin (Howell Mt. to Pope Valley, road to Middletown) Comment
  JEPS122764  Rotala ramosior Jake Ruygt 2009-7-18 5461 Napa Wild Lake. Quad: St. Helena. Comment
  JEPS110649  Rubus parviflorus Jake Ruygt 1978-5-21 334 Napa 2.1 miles north of Angwin on Deer Park Rd. 542 Comment
  SBBG50772  Rubus parviflorus G. E. Gaboury 1971-5-8 G- 38 Napa N slope of Howell Mtn off Chiles Rd Comment
  CAS-BOT-BC110482  Rumex Saichi Kawahara 1968-4-20 356 Napa Pope Valley-Angwin Road, 2 miles southwest of Pope Valley. 499 Comment
  JEPS110753  Rumex salicifolius var. salicifolius Jake Ruygt 1996-5-4 3653 Napa Butts Canyon Road at James Creek Road; SE field. 205 Comment
  JEPS65647  Rupertia physodes W. L. Jepson 1913-4-15 5306 Napa Howell Mt. 609 Comment
  POM161356  Rupertia physodes Rimo Bacigalupi 1928-6-20 1867 Napa Howell Mt, 10 miles W of St Helena Comment
  UC126474  Rupertia physodes Harley P. Chandler Sep 7 1906-Sep 14 1906 7100 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC108661  Salix breweri M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  UC482099  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa between Pope Springs and Aetna Valley; Butt Canyon Comment
  UC482100  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa between Pope Springs and Aetna Valley (about 1 1/2 mi from entrance of canyon); Butt Canyon Comment
  UC482101  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa between Pope Springs and Aetna Valley (about 1 1/2 mi from entrance of canyon); Butt Canyon Comment
  UC482103  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 a Napa between Pope Springs and Aetna Valley; Butt Canyon 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
  JEPS38399  Salix laevigata Willis L. Jepson 1893-5-8 20 s Napa beyond Angwin's Howell Mt. Comment
  UC5024  Salix laevigata Willis L. Jepson 1893-5-8 Napa beyond Angwin's Howell Mt. Comment
  UC5035  Salix lasiandra subsp. lasiandra W. L. Jepson May 1895 Napa Howell Mt. Napa River Basin, Howell Mt. Comment
  JEPS13057  Salix lasiandra var. lasiandra W. L. Jepson 1893-5-8 29 s Napa beyond Angwin's Howell Mt.; Napa River Basin, Howell Mt. Comment
  JEPS110652  Sanguisorba minor subsp. muricata Jake Ruygt 1991-5-25 2688 Napa Howell Mtn Rd. at Hill Rd. 554 Comment
  CAS-BOT-BC223275  Sanicula bipinnatifida David D. Keck 1933-5-28 2332 Napa Howell Mountain, north side, 1 mile above Pope Valley P.O. Comment
  CAS-BOT-BC223277  Sanicula bipinnatifida Saichi Kawahara 1968-4-20 353 Napa 2 miles southwest of Pope Valley; Pope Valley-Angwin Road 499 Comment
  JEPS104481  Sanicula bipinnatifida Jake Ruygt 1994-4-26 3356 Napa Pope Valley near Pope Valley Rd. 256 Comment
  UCD149699  Sanicula bipinnatifida Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD149698  Sanicula crassicaulis Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD148554  Sanicula tuberosa Jake Ruygt 1979-4-23 550 Napa Napa County; 0.3 mile west of Pope Canyon Rd. Howell Mt. 256 Comment
  JEPS8801  Scabiosa atropurpurea W. L. Jepson 1925-9-27 10748 Napa Howell Mountain Comment
  CDA11626  Scandix pecten-veneris G. F. Hrusa, S. Larson 1995-4-1 12062 Napa North Coast Biodiversity Arena; Margin of large diverse flower field along Chiles Valley/Pope Valley Rd. approx 2 mi. S of Pope Canyon Rd. intersection. Comment
  UCD128070  Scandix pecten-veneris G. F. Hrusa; S. Larson 1995-4-10 12062 Napa Along Chiles Valley/Pope Valley Rd. approx. 2 m. S of Pope Canyon Rd. intersection. North Coast Biodiversity Arena. 175 Comment
  CDA11429  Scutellaria tuberosa G. F. Hrusa, M. Tu 1995-5-6 12152 Napa North Coast Biodiversity Arena; Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  POM263256  Sedella pumila J. C. Roos 1939-4-18 296 Napa Near Angwin, Napa Range. Comment
  UC205176  Sedum radiatum Katharine Brandegee 1909-6-1 Napa Pope Valley grade Comment
  CAS-BOT-BC63832  Sedum spathulifolium Carl B. Wolf 1928-5-3 1837 Napa Base of Mt. St. Helena Comment
  HSC65069  Sedum spathulifolium var. spathulifolium J. P. Smith, J. O. Sawyer 1970-5-17 3773 Napa 3 mi. S of Pope Valley 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
  SEINET7072563  Senecio A. G. Vestal 1963-5-12 s.n. Napa Howell Mountain Road. Coordinate datum: NAD 27. UTM Zone 10, 548701mE, 4271193mN. 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
  JEPS17417  Senecio vulgaris W. L. Jepson 1936-5-31 17572 Napa e of St. Helena; Howell Mountain, Jota Plateau Comment
  UC527935  Sidalcea hartwegii R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6668 Napa 6 mi ne Pacific Union College (on road to Aetna Springs, on Howell Mt.); Howell Mt., on road to Aetna Springs Comment
  JEPS110724  Sidalcea hirsuta Jake Ruygt 1986-6-24 1783 Napa Butt's Canyon Rd. at Ink Grade 237 Comment
  UC1177102  Sidalcea hirsuta Peter H. Raven 1951-5-26 2869 Napa Aetna Springs to start Butts Canyon; Aetna Springs to start of Butts Canyon 243 Comment
  JEPS67252  Sidalcea oregana subsp. hydrophila Willis L. Jepson 1893-9-24 14062 Napa at Angwin's Napa River Basin, , Howell Mt. (Howell Mt.) Comment
  UC18933  Sidalcea oregana subsp. hydrophila Willis L. Jepson 1893-9-24 Napa Angwin's Napa River Basin, Howell Mt., Angwin's (Howell Mt.) Comment
  RSA503179  Sisyrinchium bellum Gary D. Wallace 1967-5-27 770 Napa Northwest of St. Helena on Howell Moutain Road 2 miles west of Pacific Union College and Angwin Comment
  SEINET7072564  Sisyrinchium bellum A. G. Vestal 1963-5-12 s.n. Napa Howell Mountain Road. Coordinate datum: NAD 27. UTM Zone 10, 548701mE, 4271193mN. Comment
  UCD138833  Sisyrinchium bellum H. Popenoe 1949-5-1 20 Napa on eastern exposure; one mile from Pope Valley on road to St. Helena. Comment
  POM109214  Smilax jamesii Geo D. Butler 1910-6-6 1466 Siskiyou Quartz Valley Comment
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Mar 29 2015
  UCD126989  Solanum parishii R. L. Smith 1948-5-7 s.n. Napa Pope Valley. Comment
  JEPS110918  Solanum rostratum Jake Ruygt 1984-6-30 1579 Napa Pope Valley Middle Rd. 195 Comment
  JEPS110919  Solanum umbelliferum Jake Ruygt 1993-4-12 3203 Napa south of James Creek Road and Butts Cany on Road. 219 Comment
  UCD149691  Solanum xanti Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  SEINET3149130  Solidago californica H. P. Chandler 1906-9-7 7117 Napa Alta Loma Ranch, Howell Mtn. 549 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
  UC127128  Solidago velutina subsp. californica Harley P. Chandler Sep 7 1906-Sep 14 1906 7117 Napa Alta Loma Ranch Howell Mountain, Alta Loma Ranch 487 Comment
  UCD161321  Solidago velutina subsp. californica Jake Ruygt 1979-7-21 764 Napa Napa County : 2.7 miles north of Howell Mountain Road on Pope Valley Road. (Coordinates estimated by label maker at UC Davis). 216 Comment
  JEPS18729  Soliva sessilis Willis L. Jepson 1893-5-8 14874 Napa Howell Mt. grade below New Eden; Napa River Basin, Howell Mt. Comment
  JEPS128908  Spiranthes porrifolia Jake Ruygt 1996-6-23 3756 Napa Wontrup Wildlife Sanctuary, Hardin Road, Pope Valley. Saint Helena 7.5' Quad. Comment
  UC127179  Stephanomeria elata Harley P. Chandler Sep 7 1906-Sep 14 1906 7129 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS36826  Stephanomeria virgata subsp. virgata Willis L. Jepson 1893-9-24 Napa Near Angwin's; Napa River Basin, Howell Mt. Comment
  JEPS106601  Streptanthus glandulosus subsp. glandulosus Jake Ruygt 1991-5-18 2681 Napa above Cooksley Lake, Friesen's Lakes 685 Comment
  JEPS12888  Symphoricarpos albus var. laevigatus Willis L. Jepson 1893-9-24 Napa Angwin's; Napa River Basin, Howell Mt. Comment
  UCD37949  Taeniatherum caput-medusae Beecher Crampton 1962-5-16 6436 Napa Napa County, town of Pope Valley. Comment
  UCD86121  Taeniatherum caput-medusae Beecher Crampton 1962-5-16 6436 Napa town of Pope Valley. Comment
  UC126551  Tanacetum parthenium Harley P. Chandler Sep 7 1906-Sep 14 1906 7127 Napa Alta Loma Howell Mountain 487 Comment
  CAS-BOT-BC66498  Thysanocarpus curvipes M. S. Jussel 1931-4-19 s.n. Napa Pope Valley. Comment
  CAS-BOT-BC66514  Thysanocarpus curvipes Saichi Kawahara 1968-4-20 341 Napa 2 miles south of Pope Valley, Pope Valley-Chiles Road. 259 Comment
  CAS-BOT-BC66515  Thysanocarpus curvipes Paul F. Covel 1940-4-28 1706 Napa Pac-Union College-Pope Valley Road. Comment
  JEPS106594  Thysanocarpus curvipes Jake Ruygt 1993-4-12 3201 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  CAS-BOT-BC66964  Thysanocarpus laciniatus Katharine Brandegee 1909-6-1 s.n. Napa Pope Valley Grade. Comment
  CAS-BOT-BC67312  Thysanocarpus radians M. S. Jussel 1931-4-19 s.n. Napa Pope Valley. Comment
  CAS-BOT-BC67314  Thysanocarpus radians Mrs. Clara Hunt 1921-4-1 s.n. Napa Saint Helena. Comment
  JEPS106585  Thysanocarpus radians Jake Ruygt 1997-3-8 3803 Napa south of Butts Canyon Road intersection with James Creek Rd 210 Comment
  UCR30536  Torreyochloa pallida var. pauciflora John C. Roos 1939-5-13 271 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  JEPS63929  Toxicodendron diversilobum W. L. Jepson 1913-4-15 5314 Napa Howell Mt. 609 Comment
  JEPS112634  Trichostema lanceolatum Jake Ruygt 1991-8-1 2809 Napa Butts Canyon Rd., 1.9 miles north of How ell Mountain Rd. 240 Comment
  SEINET9366903  Trichostema lanceolatum Unknown 1997-8-17 Napa Pope Valley Comment
  UC127171  Trichostema lanceolatum Harley P. Chandler Sep 7-14 1906 7136 Napa Alta Loma Ranch Howell Mountain 304 Comment
  UCD18360  Trichostema lanceolatum L. S. Kimsey 1997-8-17 s.n. Napa Pope Valley, 0.25 miles south of Aetna Springs. Comment
  GH2260  Trichostema laxum H. N. Bolander 1866-1-1 2668 Unknown Pope's Valley Comment
  JEPS112610  Trientalis latifolia Jake Ruygt 1991-5-18 2685 Napa Ink Grade 329 Comment
  UCR25326  Trientalis latifolia John C. Roos 1939-4-29 290 Napa North Coast Range, Pacific Union College, Angwin 549 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
  UC1925880  Trifolium Ethel Crum 1931-1 1056 Napa Pope Valley Comment
  UC1925866  Trifolium albopurpureum var. albopurpureum Ethel Crum 1931-1 1061 Napa Pope Valley Comment
  UC1925870  Trifolium bifidum Ethel Crum 1931-1 1055 Napa Pope Valley Comment
  JEPS65758  Trifolium bifidum var. bifidum E. K. Crum 1931-4-17 1055 a Napa 1/2 mi n P. O.; Pope Valley Comment
  JEPS65760  Trifolium bifidum var. bifidum E. K. Crum 1931-4-17 1055 c Napa 1/2 mi n P. O.; Pope Valley Comment
  JEPS106794  Trifolium bifidum var. decipiens Jake Ruygt 1993-5-24 3269 Napa Las Posadas State Forest 524 Comment
  JEPS106796  Trifolium bifidum var. decipiens Jake Ruygt 1993-4-12 3199 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  JEPS65759  Trifolium bifidum var. decipiens E. K. Crum 1931-4-17 1055 b Napa 1/2 mi n P. O.; Pope Valley Comment
  JEPS106799  Trifolium ciliolatum Jake Ruygt 1996-5-4 3648 Napa Butts Canyon Road at James Creek Road; field to SE. 205 Comment
  UCD149693  Trifolium ciliolatum Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD108358  Trifolium depauperatum var. amplectens D. C. Finfrock 1950-4-6 21 Napa 14 miles from Monticello, Pope Valley. Comment
  UC917166  Trifolium depauperatum var. truncatum D. C. Finfrock 1950-4-6 21 Napa 14 mi from Monticello (Mountain meadow); Pope valley Comment
  JEPS106805  Trifolium dubium Jake Ruygt 1996-5-5 3640 Napa Butts Canyon Road at James Creek Road; field to SE. 210 Comment
  JEPS106808  Trifolium fucatum Jake Ruygt 1993-4-12 3200 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  POM262789  Trifolium fucatum var. fucatum J. C. Roos 1939-4-15 279 Napa Pope Valley Comment
  UC1925901  Trifolium microcephalum Ethel Crum 1931-1 1063 Napa Pope Valley Comment
  JEPS106712  Trifolium microdon Jake Ruygt 1996-5-4 3646 Napa Butts Canyon Road at James Creek Road; field to SE. 205 Comment
  UCD83421  Trifolium obtusiflorum Jake Ruygt 1988-5-1 2163 b Napa Swartz Creek near Aetna Springs. 217 Comment
  POM216217  Trifolium variegatum var. melananthum D. D. Keck 1933-5-28 2336 Napa Between Pope Valley P.O. and Walters Springs. Comment
  JEPS122746  Trifolium variegatum var. variegatum Jake Ruygt 2011-5-7 5775 Napa Pope Valley, Pope Canyon Road at vernal marsh. Quad: St. Helena. Comment
  UCR23914  Trifolium virescens John C. Roos 1939-4-15 279 Napa North Coast Range, Pope Valley, [near] Pacific Union College, Angwin 240 Comment
  JEPS4171  Trifolium willdenovii W. L. Jepson 1936-7-2 17645 Napa Angwin Napa Range, Howell Mtn Comment
  JEPS4400  Trifolium willdenovii W. L. Jepson 1913-4-15 5305 Napa Howell Mtn 609 Comment
  JEPS47269  Trillium albidum Willis L. Jepson 1893-5-8 Napa Napa River Basin, Howell Mountain Howell Mountain; Napa River Basin, Howell Mountain Comment
  CLARK-A1703-1  Trillium sessile subsp. giganteum D. V. Hemphill 1935-3-15 Napa Howell Mountain Comment
  SEINET13750232  Triphysaria eriantha M. J. Williams 1967-5-7 s. n. Napa Pope Valley. 198 Comment
  UCD123379  Triphysaria eriantha D. C. Finfrock 1950-4-6 22 Napa 14 miles from Monticello and 3 miles from Pope Valley. Comment
  UC917148  Triphysaria eriantha subsp. eriantha D. C. Finfrock 1950-4-6 22 Napa Mountain meadow 3 mi from Pope Valley (1/4 mi from Monticello, in Pope Valley) Comment
  JEPS11171  Triphysaria versicolor subsp. faucibarbata R. F. Hoover 1941-4-26 4921 Napa Pope Valley Comment
  JEPS74866  Triphysaria versicolor subsp. faucibarbata T. I. and F. M. Chuang 1975-5-4 7511 Napa 4 mi e Pope Valley; e of Pope Valley Comment
  UCD123416  Triphysaria versicolor subsp. faucibarbata Gerald D. Carr; R. F. Denno 1971-5-13 546 Napa 1.5 miles northwest of Pope Valley on Pope Valley Road. Comment
  POM262797  Trisetum canescens J. C. Roos 1939-5-7 297 Napa Angwin, Napa Range Comment
  UCR24352  Trisetum canescens John C. Roos 1939-5-7 297 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  JEPS58047  Triteleia laxa R. H. Platt May 1916 Napa nw of Berryessa Valley (above Pope Valley); Upper Putah Creek Comment
  RSA195375  Umbellularia californica Gilbert Muth 1967-1-18 511 Napa Pine Hill Road, Angwin. 534 Comment
  CAS-BOT-BC381964  Uropappus lindleyi J. Clausen 1935-5-23 1072 m Napa Howell Mountain, near summit, 6.5 mi. N. of St. Helena Comment
  UC50066  Uropappus lindleyi Willis L. Jepson 1893-5-1 Napa Pope Valley grade from Calistoga Napa River Basin Comment
  JEPS43438 Image available Urtica dioica subsp. holosericea Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin Comment
  CLARK-A1528-4322  Verbascum blattaria John C. Roos 1938-10-22 265 Napa Comment
  JEPS16839  Veronica americana Willis L. Jepson 1893-6-26 21322 Napa Angwins Meadow, Napa River Basin, Howell Mountain Angwins Meadow; Napa River Basin, Howell Mountain, Angwins Meadow 792 Comment
  JEPS110575  Veronica peregrina subsp. xalapensis Jake Ruygt 1996-5-13 3663 b Napa .9 mile south of Pope Canyon Road on Hardin Road. 183 Comment
  JEPS106542  Vicia americana var. americana Jake Ruygt 1979-4-23 549 Napa .4 miles east of Howell Mtn. Rd. on Chiles and Pope V.Rd. 207 Comment
  JEPS106543  Vicia americana var. americana Jake Ruygt 1979-5-20 611 Napa 1 mile north of College Ave. on Howell Mtn. Rd. 548 Comment
  UC1328138  Viola douglasii Donald V. Hemphill 1940-3-23 59 Napa Pope Valley 304 Comment
  SJSU11033  Viola lobata D. L. Blair 1968-4-5 Napa Pope Valley Comment
  JEPS110805  Viola lobata subsp. integrifolia Jake Ruygt 1976-4-23 20 Napa .9 miles north of College Ave., Angwin on Howell Mountain Rd 545 Comment
  JEPS110801  Viola purpurea subsp. quercetorum Jake Ruygt 1991-5-4 2645 Napa White Cottage Rd. at Ink Grade 563 Comment
  UC1217701  Viola purpurea subsp. quercetorum G. L. Stebbins Jr. 1962-3-31 6007 Napa 1 mi above Pacific Union College (on road to Pope Valley); Howell Mountains Comment
  UCD111178  Viola purpurea subsp. quercetorum H. Popenoe 1949-5-1 17 Napa 1 mile from Pacific Union College on Pope Valley Road. Comment
  UCD111182  Viola purpurea subsp. quercetorum G. L. Stebbins 1962-3-31 6007 Napa Howell Mountains, 1 mile above Pacific Union College, on road to Pope Valley. Comment
  UCD164662  Viola purpurea subsp. quercetorum R. John Little 1988-5-15 4602 Napa Natural area behind barbed wire fence on Summit Lake Dr. (Exact location unknown. Coordinates estimated by label maker). 670 Comment
  A381651  Vitis californica M. S. Jussel 1931-4-19 Unknown Pope Valley Comment
  CAS-BOT-BC203089  Vitis californica Elsie M. Zeile 1924-8-4 s.n. Napa Pope Valley Comment
  CAS-BOT-BC203092  Vitis californica Carl Pfeiffer 1978-4-23 4 Napa Along Pope Valley Road, 1.4 miles southwest of Chiles Pope Valley Road 146 Comment
  UCD15021  Vitis californica Carl Pfeiffer 1978-4-23 4 Napa Along Pope Valley Road, 1.4 miles SW of Chiles Pope Valley Road; 146 Comment
  POM263165  Vulpia eastwoodiae John Toos 1939-4-15 318 Napa Pope Valley. Comment
  SEINET200323 Image available Vulpia microstachys var. ciliata J. P. Tracy 2001-7-22 12482 Napa On hills at head of Moore's Creek. 5 mi. east of Angwin's. 427 Comment
Read comments
Jun 28 2015
  POM263251  Vulpia microstachys var. confusa J. C. Roos 1939-4-18 251 Napa 3.5 miles north of Pacific Union College, Angwin. Comment
  CAS-BOT-BC184402  Vulpia microstachys var. pauciflora M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  POM203712  Vulpia microstachys var. pauciflora M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  SEINET200327  Vulpia myuros J. P. Tracy 1613 Napa Head of Moore Creek; Howell Mtn; 3-4 mi E of Angwin's 519 Comment
  SEINET200353 Image available Vulpia myuros f. megalura Joseph P. Tracy 1902-5-21 1613 Napa Howell Mountain; head of Moore's Creek, 3-4 miles East of Angwin's. 518 Comment
  UC815310  Whipplea modesta Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  UCR24387  Whipplea modesta John C. Roos 1939-5-6 295 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  JEPS32091  Wyethia W. L. Jepson 1938-5-24 18846 Napa plateau n Four Corners; Napa Range, Howell Mt. 762 Comment
  CAS-BOT-BC383021  Wyethia angustifolia M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS32081  Wyethia angustifolia W. L. Jepson 1938-5-24 18842 Napa plateau n Four Corners (Howell Mountain); Howell Mountain 762 Comment
  JEPS32082  Wyethia angustifolia W. L. Jepson 1938-5-24 18847 Napa plateau n Four Corners; Napa Range, Howell Mountain 762 Comment
  JEPS77767  Wyethia angustifolia Douglas W. James Jr. 1973-5-5 100 Napa about 1/2 mi below driveway to MacDonald Road (3.9 mi nw of junction with Lower Chiles Road on Chiles and Pope Valley Road) 259 Comment
  JEPS32118  Wyethia glabra W. L. Jepson 1938-5-24 18840 Napa plateau n Four Corners; Napa Range, Howell Mt. 762 Comment
  RSA195302  Wyethia glabra Gilbert Muth 1967-4-30 664 Napa Pope Valley, near Aetna Springs. Comment
  SD58231  Wyethia glabra W. L. Jepson 1938-5-24 18 840 Napa Howell Mountain, Napa Range, plateau north of Four Corners 760 Comment
  JEPS129153  Yabea microcarpa Jake Ruygt 1984-5-5 1539 Napa Bell Canyon. Saint Helena 7.5' Quad. Comment
  UC4112  Zigadenus fremontii Willis L. Jepson May 1893 Napa Pope Valley grade from Calistoga (Napa River Basin); , Pope Valley grade Comment



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