39.65443 39.75443 -121.79203 -121.69203 UC/JEPS: Consortium Search Results
Search Results — 1454 specimen records retrieved (1454 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC31120  Achyrachaena mollis Roberta A. Boer 1980-4-25 17 Butte Ca. 1/4 mi n of Humboldt Rd. and 1.5 mi e of the jct of Hwy 32 and Hwy 99, ca. 2.0 mi e of Chico. 131 Comment
  CHSC3259  Achyrachaena mollis Virginia Hagaman 1966-4-17 112 Butte 1.2 miles south east of Hooker Oak. Comment
  CHSC56744  Achyrachaena mollis J. D. Jokerst 1980-3-26 Butte East side of Chico; 100m northeast of junction of Bruce Road and Skyway. Comment
  HSC68162  Achyrachaena mollis J. P. Smith, J. O. Sawyer 1973-4-14 6044 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  SFV3664  Achyrachaena mollis M. L. Vincent 1962-4-15 191 Butte Sierra Nevada Skyway. 4 miles west of Paradise, overlooking Butte Canyon. 215 Comment
  UCD80027  Achyrachaena mollis CNPS SN Foothill Team 2005-4-12 SNFN 0077 d Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge across a diversion canal). 87 Comment
  CHSC6592  Acmispon americanus var. americanus G. Estrem 1968-5-2 12 Butte Ca. 5 mi se of Chico on Skyway, ca. 100 yds. s of road in open field. Comment
  CHSC90380  Acmispon brachycarpus Lisa J. Newsum 1984-4-19 19 Butte Bidwell Heights Rd., 1 1/4 from jct. with Hwy 32, 7 mi e of Chico. 304 Comment
  CHSC2833  Acmispon parviflorus David Prall 1965-4-25 30 Butte Growing on road-cut on north side of Humbug Rd. 0.3 mile swest of junction with Honeyrun Rd. (covered bridge). 152 Comment
  CHSC2835  Acmispon wrangelianus David Prall 1965-4-25 29 Butte Growing on roadside bank, on north side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (cvered Bridge). 152 Comment
  CHSC4197  Acmispon wrangelianus J. Senter 1967-4-4 20 Butte Abundant 1 mi. E. of Hwy . 99E and Skyway interchange along roadway. 45 Comment
  UCD104482  Acmispon wrangelianus Rimo Bacigalupi; L. R. Heckard 1963-5-14 8857 Butte Along Humbug Road, bottom of Butte Creek Canyon, about 2 miles above and east of its beginning at junction with Paradise Skyway. 91 Comment
  CHSC21827  Adiantum jordanii B. L. Wiley 1975-4-4 5 Butte Ca. 100 yds s of Butte Creek and 0.4 mi w of Covered Bridge, 6.4 mi ese of Chico. 115 Comment
  CHSC2838  Adiantum jordanii David Prall 1965-4-16 24 Butte 2 yds. Up the N bank 10 yds NW from Humbug Rd. 0.3 miles east from junction of Sunhill D. 198 Comment
  CHSC28879  Adiantum jordanii M. S. Taylor 1980-3-1 2340 Butte Looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC4216  Adiantum jordanii R. Carter 1966-3-13 300 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon. Comment
  CHSC90135  Adiantum jordanii Greg Johansen 1983-4-16 1 Butte About 200 yds south of Butte Creek and 200 yds southeast of the Covered Bridge, 6 mi east-southeast of Chico. 274 Comment
  SEINET3868326 Image available Adiantum jordanii M. S. Taylor 1980-3-1 2340 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi N of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico.; 0 122 Comment
  CHSC98333  Aegilops triuncialis L. P. Janeway; B. Castro 2007-5-19 8978 Butte Cascade Range Foothills. Bottom of un-named drainage on southesast side of Neal Road, 2.9 air km northeast of Hwy 99, approximately under the high power lines. On the lowest terrace above the dry dreek; dry hard clay soil, Tuscan Mudflow outcrops (volcanic) above. 88 Comment
  RSA739615  Aegilops triuncialis L. P. Janeway, B. Castro 2007-5-19 8978 Butte Cascade Range Foothills, Bottom of unnamed drainage on SE side of Neal Road, 2.9 air km NE of Hwy 99, under the high power lines. 88 Comment
  CHSC4455  Aesculus californica C. Glascock 1965-3-17 290 Butte Ca. 50 ft. downstream from E end of covered bridge on the Honey Run Rd., near Chico. Comment
  CHSC49495  Agrostis exarata Vernon Oswald 1987-5-18 2905 Butte Butte Creek Reserve on the north side of Butte Creek e of Hwy 99. 68 Comment
  CHSC49498  Agrostis scabra Vernon Oswald 1987-7-8 3100 Butte Butte Creek Reservoir, on the north side of Butte Creek east of the Skyway, east of Chico. 74 Comment
  CHSC49502  Agrostis stolonifera Vernon Oswald 1987-7-20 3140 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between the dam for Crouch Ditch and the double set of transmission lines. 82 Comment
  CHSC49499  Agrostis viridis Vernon Oswald 1987-5-18 2914 Butte Butte Creek Reserve on the s side of Butte Creed n of the Skyway. 80 Comment
  CHSC2117  Aira caryophyllea H. Silberman; D. Isaac 1949-5-4 Butte Humboldt road, 2 mi. E of Chico. 152 Comment
  CHSC92548  Aira caryophyllea L. P. Janeway 2005-3-10 8345 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC41092  Aira caryophyllea J. P. Smith, J. O. Sawyer 1973-4-14 6046 Butte Bruce Ln. between Humboldt Rd. and Skyway Rd., E of Chico Comment
  RSA715919  Aira caryophyllea L. P. Janeway 2005-10-3 8345 Butte Cascade Range Foothills. East edge of city of Chico; North side of Humboldt Road. 1.8 km Northeast of Bruce Road. 134 Comment
  GH310764  Alchemilla macrosepala A. A. Heller 1916-4-13 12324 Unknown Stilson canon east of Chico in the digger pine and blue oak belt, Ceanothus, Toxicodendron, and Uva-nrsi common shrubs. Comment
  CHSC49466  Alisma triviale Vernon Oswald 1987-6-15 3000 Butte Butte Creek Reserve on the n side of Butte Creek, ne of the Skyway. 76 Comment
  CHSC4076  Allium amplectens H. E. Lindahl 1967-4-6 9 Butte Located 1.1 mi n of county dump on Neal Rd. Comment
  CHSC90049  Allium amplectens Laurie L. Gordon 1991-4-17 10 Butte 3 mi e of Hwy 99, ca. 250 ft s of Hwy 32. 54 Comment
  CHSC90192  Allium amplectens Camela J. Ott 1989-4-11 8 Butte Population ca. 100 m ne of covered bridge, along e bank of Centerville Rd. 10.2 km ese of Chico. 120 Comment
  CHSC90575  Allium amplectens Robert Lyster 1984-4-21 16 Butte About 9 mi east of Chico and 75 yds west of Butte Creek and 100 yds southwest of Covered Bridge. 108 Comment
  CHSC96559  Allium amplectens L. P. Janeway 2006-4-30 8569 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  HSC39466  Allium amplectens J. P. Smith, J. O. Sawyer 1973-4-14 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  HSC43354  Allium amplectens Maralyn O'Meara 1974-4-20 266 Butte Skyway Drive, 1 mi. E of Hwy. 99 61 Comment
  JEPS82253  Allium amplectens Roger Raiche 1983-4-13 30188 Butte slope above Honey Run Covered Bridge (Honey Run Road) Comment
  RSA725061  Allium amplectens L. P. Janeway 2006-4-30 8569 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  SBBG40363  Allium amplectens J. Ingram 1960-4-6 299 Butte Neal Rd, ca. 6 mi S of Paradise Comment
  UC1377794  Allium amplectens John Ingram and Arlynn Ingram 1960-4-6 299 Butte about 6 mi s Paradise (on Neal Road) Comment
  UC203658  Allium amplectens A. A. Heller 1914-4-16 11299 Butte 2 mi from Chico (in the field near the Plant Introduction Garden) Comment
  UCD80409  Allium amplectens CNPS SN Foothill Team 2005-4-13 SNFN 0078 a Butte City of Chico, Doe Mill Meadowfoam Preserve, at the east end of Warfield Street, on the east side of the creek diversion between the diversion and the creek, ~85 m south of the Preserve gate entrance. 82 Comment
  CHSC30815  Allium peninsulare M. S. Taylor; J. D. Jokerst 1980-4-19 2546 Butte S side of Butte Creek, ca. 1/4 mi upstream (n) from Honey Run Covered Bridge, ca. 6 mi e of Chico. 182 Comment
  CHSC36951  Allium peninsulare Richard J. Slama 1981-4-20 7 Butte On s rim of canyon, ca. 7 mi. se of Chico, ca. 5 mi. e of hwy. 99 on Skyway rd. 243 Comment
  SJSU7110  Allium peninsulare C. D. Duncan 1963-5-4 Butte lava cap near Neal Rd between Chico & Paradise, Sierra Nevada foothills 487 Comment
  UCD80510  Alopecurus saccatus CNPS SN Foothill Team 2005-4-12 SNFN 0077 a Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge across a diversion canal). 87 Comment
  CDA3300  Amaranthus deflexus L. Ahart 2004-9-28 11404 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. Comment
  CHSC89437  Amaranthus deflexus Lowell Ahart 2004-9-28 11404 Butte Fallow field, on the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. 57 Comment
  HSC97057  Amaranthus deflexus L. Ahart 2004-9-28 11404 Butte S side of the Oroville Chico Hwy., W of Butte Creek, 1 1/8 mi. SE of the Midway, 2 1/8 mi. NE of Durham, 3.5 mi. SE of Chico 58 Comment
  JEPS106013  Amaranthus deflexus Lowell Ahart 2004-9-28 11404 Butte Fallow field, on the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico 57 Comment
  RSA702776  Amaranthus deflexus L. Ahart 2004-9-28 11404 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles northeast of Durham, about 3 1/2 miles southeast of Chico 58 Comment
  UCD169384  Amaranthus deflexus Lowell Ahart 2004-9-28 11404 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. 57 Comment
  CHSC116013  Ambrosia psilostachya Lowell Ahart 2015-10-9 20539 Butte West edge of Highway 32, about 100 yards south of Ten Mile House road, about 10 miles northeast of Chico. 464 Comment
  CHSC21175  Ambrosia psilostachya M. S. Taylor 1975-10-29 977 Butte Ca. 10 ft S of Humbug Rd, ca. 4 mi E of junc of the Skyway and Humbug Rd. Comment
  JEPS124126  Ambrosia psilostachya Lowell Ahart 2015-10-9 20539 Butte About 100 yards south of Ten Mile House Road, about 10 miles northeast of Chico. Comment
  CHSC45748  Ammannia coccinea L. P. Janeway 1988-6-29 2902 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi S of the Skyway, 2.9 mi E of the Butte Cr bridge. 170 Comment
  CHSC61713  Amsinckia eastwoodiae David E. Young 1983-3-20 5 Butte 23 m w of Humboldt Rd. and 4 km e of Chico, .8 km n of Little Chico Creek. 99 Comment
  JEPS87512  Amsinckia eastwoodiae David E. Young 1983-3-20 5 Butte 4 km e of Chico (23 m w of Humbolt Rd, .8 km n of Little Chico Creek, ne corner of nw corner of Sect. 29) 99 Comment
  UC1609217  Amsinckia eastwoodiae David Young 1983-3-20 5 Butte 4 km e of Chico (23 m w of Humbolt Rd, .8 km n of Little Chico Creek, ne corner of nw corner of Sect. 29) 99 Comment
  CHSC100976  Amsinckia intermedia L. P. Janeway 2008-3-18 9231 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC23470  Amsinckia intermedia J. R. Lee 1974-4-22 3 Butte 15 yds n of the Skyway roadside and 6 miles from the Chico city limits. 152 Comment
  CHSC2811  Amsinckia intermedia David Prall 1965-3-14 3 Butte Along side of Neal Rd. 1 mile east of Highway 99E. 106 Comment
  CHSC31060  Amsinckia intermedia M. S. Taylor 1980-3-1 2343 Butte N facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi.e of its junction with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC31125  Amsinckia intermedia Howard Paul 1980-4-6 3 Butte Along the s rim of Butte Creek canyon, ca. 2.5 mi e of Chico, on the Skyway. 152 Comment
  CHSC90577  Amsinckia intermedia Andy Winkler 1980-4-15 3 Butte About 1/2 mi east of the Hwy 99 Butte Creek bridge, on the north side of Butte Creek. Comment
  CHSC96552  Amsinckia lycopsoides L. P. Janeway 2006-4-30 8561 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA0089739  Amsinckia lycopsoides L. P. Janeway 2006-6-30 8561 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road, 2.4 km northeast of Bruce Road. 149 Comment
  CHSC1389  Anagallis arvensis J. Baynes 1929-4-26 Butte U. S. Plant Introduction Garden. 57 Comment
  CHSC75161  Anchusa officinalis Vernon H. Oswald 1987-4-29 2350 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station). in se Chico. 68 Comment
  CHSC75254  Anchusa officinalis Vernon H. Oswald 1999-4-24 9720 Butte Genetic Resource Center (old USDA Plant Introduction Station) in south Chico. 70 Comment
  JEPS95957  Anchusa officinalis Vernon H. Oswald 1999-4-24 9720 Butte Genetic Resource Center (old USDA Plant Introduction Station) in south Chico: T21N R2E SE1/4 NW1/4 Sect. 5, 230 ft, agricultural area. Localized weed growing in the NE corner of the intersection of farm roads directly S of the headquarters building. 70 Comment
  CHSC38118  Andropogon virginicus var. virginicus R. L. Ondricek-Fallscheer 1982-10-30 163 Butte At sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 146 Comment
  CHSC36168  Anthriscus caucalis G. H. Snodgrass 1981-4-11 PT- 12 Butte Ca. 5 mi e of Chico, ca. 200 yds e of Rockwood Lake entrance on Honeyrun Rd. (previously Humbug Rd.). Comment
  CHSC39646  Anthriscus caucalis Lowell Ahart 1983-4-10 3928 Butte About 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  UC859110  Aphanes occidentalis A. A. Heller 1916-4-13 12324 Butte e of Chico (Stilson canyon) Comment
  CHSC3261  Arceuthobium occidentale M. L. Hillier 1966-4-23 Butte About 9.5 miles e. of C.S.C. admin. building. Chico. Comment
  CHSC24702  Arctostaphylos J. R. Nelson 1976-3-1 5 Butte 9 mi E of Chico on Hwy 32. 548 Comment
  CHSC33288  Arctostaphylos S. Posner; K. Stern 1972-9-24 1 Butte 200 yds south of Humbug Rd., 3 miles east of Skyway. Comment
  CHSC3616  Arctostaphylos manzanita subsp. manzanita John Francis 1966-2-15 9 Butte 4 miles E of Chico on Hwy 32. Comment
  CAS-BOT-BC46720  Arctostaphylos patula M. S. Taylor 1974-3-3 71 Butte Ca. 5 mi. e. of Chico on the n. side of the Skyway to Paradise. 76 Comment
  CHSC586  Arctostaphylos patula L. Stone 1930-3-16 Butte Near West Branch on Humboldt road. 975 Comment
  CHSC25404  Aristida ternipes var. hamulosa Hayes; Warner 1977-9-11 57 Butte Exactly 3.5 mi e of the Hwy 99 overpass on Hwy 32 e of Chico, ca. 1 m s of road. 137 Comment
  CHSC49508  Aristida ternipes var. hamulosa Vernon Oswald 1985-6-10 1826 Butte Hwy 32 3.1 mi e of Hwy 99. 164 Comment
  CHSC50353  Aristida ternipes var. hamulosa Vernon Oswald; Mary Bailey 1990-5-19 4222 Butte South rim of Nance Canyon at the double power transmission lines, ca. 0.6 mile northeast of the Butte County Sanitary Landfill on Neal Rd, south of Chico. 146 Comment
  CAS-BOT-BC400418  Aristolochia californica Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 26 Butte E of Chico off of Skyway Blvd, 1.0 mi. north on Honey -Run Rd. 381 Comment
  CAS-BOT-BC400429  Aristolochia californica John Thomas Howell 1975-6-15 51070 Butte Butte Creek near Chico 60 Comment
  CHSC115  Aristolochia californica F. Roos 1930-3-16 Butte On Oroville road near Chico. 76 Comment
  CHSC116  Aristolochia californica M. Anthony 1963-4-29 Butte Near Covered Bridge on Butte Creek. 108 Comment
  CHSC27842  Aristolochia californica T. B. Devine 1978-10-15 469 Butte At intersection of Humbug Rd. and Honey Run Rd. 106 Comment
  HSC65302  Aristolochia californica J. P. Smith 1973-3-22 5917 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  UC687398  Aristolochia californica unknown 1896-2 151 Butte Butte Creek Canyon Comment
  CHSC58670  Artemisia sacrorum M. Bailey 1991-6-6 Butte Growing in the median strip of Hwy 99, ca 1 mi N of its jct with Neal Road. 60 Comment
  UC1123539  Asclepias fascicularis A. E. Wieslander 1933-10-12 345 Butte Durham Chico Quadrangle Comment
  CAS-BOT-BC178465  Astragalus gambelianus A. A. Heller 1916-4-13 s.n. Butte Stilson Canyon east of Chico Comment
  CHSC827  Astragalus gambelianus L. Nelson 1935-5-7 Butte Covered Bridge on Butte Creek. 108 Comment
  CHSC14015  Athysanus pusillus G. Notch 1974-3-12 66 Butte In fields on Burton's Mesa ca. 3 mi e of Chico on the Skyway to Paradise. 213 Comment
  CHSC28901  Athysanus pusillus M. S. Taylor; J. Jokerst 1980-2-23 2318 Butte Ca. 1/4 mi n of Neal Rd, on bluffs overlooking Nance Canyon, ca. 4 mi sw of Paradise. 198 Comment
  CHSC34550  Athysanus pusillus M. Jeanne Boze 1978-3-1 2 Butte Ca. 3 mi e of Chico Humboldt Rd. 1 mi n of Bruce Rd. Intersection. 106 Comment
  CHSC4073  Athysanus pusillus H. E. Lindahl 1967-4-4 14 Butte 1/2 mi. s of intersection of Neal Rd. and Chico-Oroville highway. Comment
  CHSC4115  Athysanus pusillus R. Carter 1966-3-13 297 Butte Found ca. 6 mi. E of Chico at intersection of Honey Run Rd. and Humbug Rd. in Butte Cr. Canyon; 50 yds. up slope on S side of canyon. Comment
  CHSC476  Athysanus pusillus G. Spurlock 1935-4-7 Butte Covered bridge on Butte Creek. Comment
  CHSC90603  Athysanus pusillus Susan E. Bigbee 1984-3-13 38 Butte Population ca. 50 yds s of Butte Creek and ca. 320 yds w of Covered Bridge, 6.2 mi ese of Chico. 120 Comment
  POM219647  Athysanus pusillus H. F. Copeland 1928-4-3 431 Butte Canyon of Butte Creek. Comment
  RSA20874  Athysanus pusillus C. B. Wolf 1937-3-29 8335 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  SFV1397  Athysanus pusillus M. L. Vincent 1961-3-28 36 Butte Sierra Nevada Skyway on road from Paradise to Chico; 2 miles west of Paradise. 300 Comment
  CHSC100990  Avena barbata L. P. Janeway 2008-4-2 9246 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  CHSC30283  Avena barbata M. S. Taylor 1980-3-1 2327 Butte West end of county dump, on s boundry, on n side of Neal Rd., ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC41558  Avena barbata R. L. Ondricek-Fallscheer 1982-5-26 138 Butte At sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 192 Comment
  JEPS117938  Avena barbata L. P. Janeway 2008-4-2 9246 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  CHSC2826  Avena fatua David Prall 1965-3-14 14 Butte At roadside of Neal Rd. 1 mile East of HW. 99E. 106 Comment
  CHSC8168  Avena sativa Dave Isle 1969-4-17 339 Butte Off the E. side of Bruce Road about 1 mile N. of the Bruce Rd. - Skyway intersection. 59 Comment
  CHSC43601  Azolla filiculoides Vernon Oswald 1987-4-30 2361 Butte Butte Creek Reserve on the s side of Butte Creek, ne of the Skyway. 80 Comment
  CHSC44628  Azolla filiculoides Vernon Oswald 1987-5-20 2913 Butte Butte Creek Canyon Ecological Reserve on the s side of Butte Creek, ne of the Skyway. 80 Comment
  CHSC8761  Azolla filiculoides S. Chulasmai 1966-3-25 2 Butte Highway 99 E (3 miles south of Chico) Dradger pond. Comment
  CHSC21176  Baccharis douglasii M. S. Taylor 1975-10-29 971 Butte On N side of Butte Creek, ca. 4 mi E of junc of the Skyway and Humbug Rd. Comment
  CHSC56747  Baccharis salicifolia J. D. Jokerst 1980-4-15 Butte Junction of Honey Run Road and Butte Creek. Comment
  CHSC48313  Barbarea orthoceras Vernon Oswald 1987-4-6 2306 Butte Butte Creek Reserve on the n side of Butte Creek n of the Skyway, ca. 200 ft w of the single transmission line. Flood plain of the creek. 80 Comment
  CHSC43648  Barbarea verna Vernon Oswald 1987-4-22 2340 Butte Butte Creek Reserve on the n side of Butte Creek e of Hwy 99. On the edge of the creek. 68 Comment
  NY31003  Blennosperma californicum C. B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 0.5 mile southeast of Butte Creek on Chico-Oroville road 57.9 Comment
  CHSC7141  Blennosperma nanum Bryan C. Willingham 1969-3-13 2 Butte Ca. 3 mi SE of Chico. S of Skyway and ca 1 mi NW of Butte Creek. 91 Comment
  RSA20872  Blennosperma nanum C. B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd 58 Comment
  CAS-BOT-BC100688  Blennosperma nanum var. nanum Carl B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 1/2 mi. SE. of Butte Creek on Chico - Oroville Road 57 Comment
  CAS-BOT-BC100691  Blennosperma nanum var. nanum Carl B. Wolf 1937-3-29 8333 Butte Sacramento Valley, 1/2 mi. SE. of Butte Creek on Chico - Oroville Road 57 Comment
  CHSC92571  Blennosperma nanum var. nanum L. P. Janeway 2005-3-1 8333 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC68163  Blennosperma nanum var. nanum J. P. Smith, J. O. Sawyer 1973-4-14 6051 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA0084097  Blennosperma nanum var. nanum L. P. Janeway 2005-3-1 8333 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  CHSC6163  Brachypodium distachyon E. Parreno 1968-4-28 76 Butte NE of Covered Bridge, Chico. 60 Comment
  CHSC67316  Brachypodium distachyon James D. Jokerst; Barbara Castro 1992-5-19 3353 Butte Cascade Range Foothills. Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. 76 Comment
  CHSC74036  Brachypodium distachyon B. Castro 1996-5-18 661 Butte Ca 5.5 air mi SE of Town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 60 ft N of creek channel directly under transmission lines. 85 Comment
  CHSC98562  Brachypodium distachyon L. P. Janeway; B. Castro 2007-5-19 8980 Butte Cascade Range Foothills. Bottom of un-named drainage on southeast side of Neal Road, 2.9 air km northeast of Hwy 99, approximately under the high power lines. Half way down the slope from bluffs to dry creek; southeast-facing slope. 99 Comment
  RSA739617  Brachypodium distachyon L. P. Janeway, B. Castro 2007-5-19 8980 Butte Cascade Range Foothills, Bottom of unnamed drainage on SE side of Neal Road, 2.9 air km NE of Hwy 99, under the high power lines. 99 Comment
  CDA31946  Brassica napus L. Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about one mile south of Butte Creek, about 3 miles south of Chico. Comment
  CHSC101703  Brassica napus Lowell Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about one mile south of Butte Creek, about 3 miles south of Chico. Scattered south along highway for miles. 60 Comment
  JEPS115834  Brassica napus Lowell Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about one mile south of Butte Creek, about 3 miles south of Chico. Scattered south along highway for miles 60 Comment
  RSA755047  Brassica napus L. Ahart 2009-4-26 15607 Butte E side of Highway 99, south of the wash, about 1/2 mile south of the stoplight at the intersection, about 1 mile south of Butte Creek, about 3 miles S of Chico. 60 Comment
  UCD169897  Brassica napus Lowell Ahart 2009-4-26 15607 Butte On the east side of Highway 99, south of the wash, about 1/2 mile south of the stop light at the intersection, about 1 mile south of Butte Creek, about 3 miles south of Chico. 60 Comment
  CHSC110130  Brassica rapa L. P. Janeway 2012-4-3 10804 Butte Sacramento Valley. Along old rock wall on south side of Humboldt Road 0.3 km east of Bruce Road, across from rehabbed and covered area of old dump site. 86 Comment
  CHSC110131  Brassica rapa L. P. Janeway 2012-4-3 10804 Butte Sacramento Valley. Along old rock wall on south side of Hum-boldt Road 0.3 km east of Bruce Road, across from rehabbed and covered area of old dump site. 86 Comment
  CHSC110132  Brassica rapa L. P. Janeway 2012-3-30 10803 Butte Sacramento Valley. West side of Hwy 99 1.6 km south of Estates Drive, south edge of Chico. 60 Comment
  CHSC35009  Brassica rapa R. E. Preston 1982-3-2 181 Butte Old County Dump site, ne corner of jct of Humboldt Rd and Bruce Rd; ca. 3 mi e of downtown Chico. 86 Comment
  JEPS120521  Brassica rapa L. P. Janeway 2012-3-30 10803 Butte Sacramento Valley. West side of Hwy 99 1.6 km south of Estates Drive, south edge of Chico. Comment
  CHSC100874  Brickellia californica L. P. Janeway 2008-10-8 9605 Butte Cascade Range Foothills Upper Bidwell Park, Chico; north side of Big Chico Cree 455 m west of Day Camp. 91 Comment
  CHSC41556  Briza maxima R. L. Ondricek-Fallscheer 1982-5-25 135 Butte NE side of tip of Flatiron Ridge; ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC52485  Briza maxima R. L. Ondricek 1982-5-25 135 Butte NE side of tip of Flatiron Ridge; ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC6753  Briza maxima Marilyn Lee 1968-5-3 163 Butte South side of Skyway, ca 6 miles E. of Chico. Comment
  CHSC41138  Briza minor R. L. Ondricek-Fallscheer 1982-5-25 134 Butte On ne side of tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC4407  Briza minor R. L. Smith 1966-5-10 12 Butte Butte Creek Canyon 4 mi. e of Skyway. Comment
  CHSC92546  Briza minor L. P. Janeway 2005-3-10 8346 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  POM112996  Briza minor C. C. Bruce 1897-04 1886 Butte Butte Creek Comment
  RSA715855  Briza minor L. P. Janeway 2005-3-10 8346 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC2071  Brodiaea coronaria V. Holt 1960-5-7 Butte Oroville Road. 79 Comment
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Jun 17 2014
  CHSC113807  Brodiaea elegans M. Ocken 2011-4-8 Butte Big Chico Creek Ecological Reserve, off Hwy 32. 396 Comment
  CHSC90224  Brodiaea elegans subsp. elegans Robert Kissane 1989-5-12 2 Butte East side of Bruce Road, ca. 500 m s of Humboldt Road, Chico. 80 Comment
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Jun 17 2014
  UCD147860  Brodiaea minor Robert E. Preston 2005-5-9 2340 b Butte Chico, SW of jct Humboldt Rd and Bruce Rd. 81 Comment
  CHSC7137  Brodiaea nana James M. Watson 1969-4-20 12 Butte 3.5 mi e of freeway on Skyway 5 yds. E of road. 182 Comment
  CHSC81329  Brodiaea nana J. Trizzino 2001-4-25 56 Butte Oro-Chico Highway, 0.5 mi east of Mesa Drive, south side of road. 53 Comment
  UCD147859  Brodiaea nana Robert E. Preston 2005-5-9 2340 a Butte Chico, SW of jct Humboldt Rd and Bruce Rd. 80 Comment
  CHSC3921  Bromus diandrus H. E. Lindahl 1967-3-20 19 Butte 1/2 mi. s of intersection of Neal Rd. and Chico-Oroville highway. 60 Comment
  CHSC96549  Bromus hordeaceus L. P. Janeway 2006-4-30 8567 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  HSC41095  Bromus hordeaceus J. P. Smith, J. O. Sawyer 1973-4-14 6047 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA725192  Bromus hordeaceus L. P. Janeway 2006-4-30 8567 Butte Cascade range Foothills. East edge of city of Chico; northwest side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CHSC6164  Bromus laevipes E. Parreno 1968-4-28 79 Butte Ridge ne side of Covered Bridge. 60 Comment
  CHSC100992  Bromus madritensis subsp. madritensis L. P. Janeway 2008-4-2 9249 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  CHSC6750  Bromus madritensis subsp. madritensis Marilyn Lee 1968-5-3 157 Butte South side of Skyway, ca 6 miles E. of Chico. Comment
  JEPS117882  Bromus madritensis subsp. madritensis L. P. Janeway 2008-4-2 9249 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  CHSC2134  Bromus madritensis subsp. rubens H. Silberman; D. Isaac 1949-5-4 Butte Humboldt road, 2 mi. east of Chico. Comment
  CHSC28998  Bromus madritensis subsp. rubens M. S. Taylor 1980-4-1 2423 A Butte On bluffs on s side of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge, ca. 6 mi e of Chico. 182 Comment
  CHSC3922  Bromus madritensis subsp. rubens H. E. Lindahl 1967-3-20 18 Butte Ca. 1/2 mi. s of intersection of Neal Rd. and Chico-Oroville highway. 60 Comment
  UCD59586  Bromus rubens Mrs. C. C. Bruce 1896-4-1 42 Butte East of Chico. Comment
  CHSC49521  Bromus sterilis Vernon Oswald 1987-5-6 2375 Butte Butte Creek Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 67 Comment
  CHSC43595  Callitriche heterophylla var. bolanderi Vernon Oswald 1987-5-25 2926 Butte Butte Creek Reserve on the n side of Butte Creek ne of the Skyway. In a pond along a channel. 79 Comment
  CHSC48003  Callitriche marginata Vernon Oswald 1987-4-7 2313 Butte Butte Creek Reserve between Butte Creek and the Durham Mutual Ditch, e of Hwy 99. In ruts of a dirt track. 68 Comment
  CHSC24839  Calochortus albus M. S. McCrum 1976-4-27 8 Butte Ca. 6.5 mi e of Chico, 100 yd s of Butte Creek, 0.1 mi w of Covered Bridge. 112 Comment
  CHSC2510  Calochortus albus W. Fitzwater 1958-4-19 Butte Neal Grade, Chico area. Comment
  CHSC2839  Calochortus albus David Prall 1965-4-25 25 Butte On roadside bank of north side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (covered bridge). 152 Comment
  CHSC29106  Calochortus albus M. S. Taylor; J. D. Jokerst 1980-4-27 2567 Butte On s side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 137 Comment
  CHSC24840  Calochortus luteus J. T. Moore 1976-4-28 18 Butte 5 m n of Skyway road to Paradise, 8 km e of Hwy 99. 210 Comment
  CHSC3284  Calochortus luteus M. S. Hillier 1966-5-7 Butte 1/4 mile n. of covered bridge on humbug rd. Comment
  CHSC7131  Calochortus luteus J. Borgstrom 1969-5-2 22 Butte Ca 6 mi s of Chico on 99E, 20 ft. off of w side of highway. 47 Comment
  CHSC76968  Calochortus luteus Ida Ryan 1893-5-1 Butte Humboldt Road. Comment
  CHSC79619  Calochortus luteus Leanna Brown; Shirley Innecken 1999-5-3 79 Butte Vista La Mesa Dr. 428 Comment
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Jul 24 2008
  CHSC81330  Calochortus luteus J. Trizzino 2001-4-25 55 Butte Oro-Chico Highway, 0.5 mi east of Mesa Drive, south side of road. 53 Comment
  CHSC24843  Calochortus monophyllus T. L. Reynolds 1976-4-23 55 Butte 0.3 mi ne of Covered Bridge, 7.2 mi ese of Chico. 121 Comment
  CHSC90184  Calochortus monophyllus Thomas M. Scott 1989-4-19 9 Butte About 50 m east of Butte Creek at Covered Bridge; 10.2 km east-southeast of Chico. 120 Comment
  UC203547  Calochortus monophyllus A. A. Heller 1914-4-16 11295 Butte 8 mi from Chico (on the Chico-Centerville road; near Butte Creek) Comment
  CHSC25402  Calycadenia ciliosa M. P. Hayes 1977-9-11 56 Butte Exactly 3.5 mi E of the Hwy 99 overpass on Hwy 32 in Chico, ca 3-10 m S of the road. 137 Comment
  CHSC50791  Calycadenia ciliosa Vernon H. Oswald; Mary Bailey 1990-8-2 4429 Butte Nance Canyon just north of the power transmission lines, ca. 1 mi north-northeast of the Butte County Sanitary Landfill on Neal Rd. 97 Comment
  CHSC51252  Calycadenia ciliosa Lowell Ahart; Mary Sue Taylor 1990-8-28 6595 Butte On the south side of Highway 32, about 3 miles east of Chico. 182 Comment
  CHSC97005  Calycadenia multiglandulosa B. Castro; L. P. Janeway 2005-6-5 1481 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  CDA10576  Calycadenia oppositifolia J. Glazner, D. Zippin 1999-6-15 s.n. Butte Sierra Nevada; Upper reach of Nance Canyon, 3/8 mile south-southeast of Skyway Boulevard under transmission line. Comment
  CHSC44955  Calycadenia oppositifolia Pauleen Broyles 1988-4-19 1107 Butte Lower Nance Canyon. 90 Comment
  CAS-BOT-BC270880  Calycadenia spicata R. F. Hoover 1938-8-2 3717 Butte 7 miles SE of Chico Comment
  CHSC59105  Calycadenia spicata L. P. Janeway; B. Castro, R. A. Schlising 1992-5-17 4188 Butte Unnamed canyon on the southeast side of Neal Road opposite the upper part of the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99. 76 Comment
  JEPS20224  Calycadenia spicata R. F. Hoover 1938-8-2 3717 Butte 7 mi se Chico Comment
  RSA724858  Calycadenia spicata B. Castro, L. P. Janeway 2005-6-5 1481 Butte About 6 air miles southeast of Chico, in bottom of canyon SE of Neal Road, about 100 feet northwest of intermittent creek. 85 Comment
  UC596105  Calycadenia spicata R. F. Hoover 1938-8-2 3717 Butte 7 mi se of Chico Comment
  CHSC52383  Calycadenia truncata R. L. Ondricek-Fallscheer 1982-10-30 162 Butte SW tip of Flatiron Ridge, ca. 3 1/2 mi WSW of Paradise. 146 Comment
  CAS-BOT-BC90921  Calycanthus occidentalis Lowell Ahart 1966-5-17 s.n. Butte Honey Run Road, near Chico. 152 Comment
  RSA424439  Calycanthus occidentalis Margaret J. Williams, W. Roderick 1984-5-25 84- 20 -1 Butte Honey Run road to Paradise, 6.8 miles from Paradise. Comment
  CHSC57175  Capsella bursa-pastoris Rickelle Syrdahl 1991-4-16 20 Butte Ca. 50 yds sw of jct of Centerville Rd and Honey Run RD, n side of Butte Creek at covered bridge. 152 Comment
  CHSC498  Cardamine californica P. Delaplane 1965-3-2 66 Butte Found ca. 100 yds. from covered bridge on Honey Run Rd. ca. 8 mi. SE of Chico. 304 Comment
  UC117855  Cardamine californica R. M. A. Feb. 1883 332 Butte banks Little Chico Creek; banks Little Chico Creek Comment
  CHSC34521  Cardamine californica var. californica R. E. Preston 1981-2-6 37 Butte At base of cliff on s side of Butte Creek canyon, at Covered Bridge, ca. 12 km e of Chico. 275 Comment
  CHSC28904  Cardamine oligosperma M. S. Taylor 1980-3-1 2341 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC34481  Cardamine oligosperma C. S. Phillips 1976-4-28 13 Butte Ca. 70 yds. s of Butte Creek and 0.3 mi. w of Covered Bridge, 6.4 mi ese of Chico. 115 Comment
  CHSC35007  Cardamine oligosperma R. E. Preston 1982-2-25 179 Butte 20 ft s of Humboldt Rd, ca. 1/4 mi e of its jct with Bruce Rd; ca. 3 mi e of downtown Chico. 87 Comment
  CHSC92568  Cardamine oligosperma L. P. Janeway 2005-3-1 8335 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC64130  Cardamine oligosperma J. P. Smith 1973-3-22 5922 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  RSA715722  Cardamine oligosperma L. P. Janeway 2005-3-1 8335 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road 134 Comment
  SJSU15296  Carex Lisa Morton 2002-3-31 18 Butte Upper Bidwell Park along Middle Trail 50 Comment
  CHSC2105  Carex barbarae P. Mason 1937-5-15 Butte Fish wheel on Butte Creek. 91 Comment
  CHSC45075  Carex bolanderi Vernon Oswald 1987-5-12 2392 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. 80 Comment
  CHSC52857  Carex densa L. P. Janeway 1988-6-26 2883 Butte SE rim of Coon Ridge overlooking Nance Canyon; ca 0.6 mi NE of the power lines (high voltage). 182 Comment
  CHSC45048  Carex feta Vernon Oswald 1987-5-18 2907 Butte Butte Creek Reserve on the s side of Butte Creek e of Hwy 99. On the edge of a now dry ditch diverting winter water from the control valve of Durham Mutual Ditch back into Butte Creek. 68 Comment
  CHSC52246  Carex nudata L. P. Janeway; Vern Oswald 1989-4-17 3224 Butte Along ditch just southeast of Butte Creek, ca 1/4 mi northeast of Hwy 99. 67 Comment
  CHSC52249  Carex nudata L. P. Janeway 1988-4-10 2613 Butte Along Little Chico Creek ca 1/2 mi east of Bruce Road. 85 Comment
  CHSC45051  Carex pachystachya Vernon Oswald 1987-5-7 2378 Butte Butte Creek Reserve on the n side of Butte Creek, e of the Skyway. 74 Comment
  CHSC51429  Carex pendula L. P. Janeway 1989-12-1 3653 Butte Along Comanche Creek (Edgar Slough) behind the office of USFS Tree Improvement Center. 68 Comment
  CHSC45071  Carex subfusca Vernon Oswald 1987-5-12 2391 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. On the edge of Butte Creek. 80 Comment
  CHSC45072  Carex subfusca Vernon Oswald 1987-5-7 2379 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. On the bottom of a drying dredger pond. 74 Comment
  GH365598  Castilleja A. A. Heller 1916-4-13 12319 Unknown Stilson canon east of Chico Comment
  CAS-BOT-BC249107  Castilleja affinis A. A. Heller 1916-4-13 12319 Butte Stilson Canon [Canyon] east of Chico Comment
  UC885148  Castilleja affinis subsp. affinis A. A. Heller 1916-4-13 12319 Butte e of Chico; Stilson Canyon Comment
  CHSC43191  Castilleja applegatei subsp. pinetorum Richard J. Slama 1981-4-20 8 Butte On s rim of canyon. Ca. 7 mi se of Chico, ca. 5 mi. e of hwy. 99 on Skyway rd. 243 Comment
  CHSC2827  Castilleja attenuata David Prall 1965-3-14 13 Butte Neal Rd. 1 mile east of Hw. 99E. 106 Comment
  CHSC3454  Castilleja exserta Judy Potter 1966-3-28 Butte South of Chico where Butte Creek crosses US 99. Comment
  CHSC43166  Castilleja exserta Don Kroessig 1979-4-16 1 Butte On W side of Bruce Road 1.1 mile n of intersection with the Skyway. 76 Comment
  CHSC90143  Castilleja exserta subsp. exserta Andy Winkler 1980-4-15 13 Butte About 1/2 mi east of Hwy 99 Butte Creek bridge on the north side of Butte Creek. Comment
  CHSC61181  Castilleja lacera V. H. Oswald; L. Hanson, L. P. Janeway 1993-5-11 5371 Butte McKnight Ranch on the N side of Hwy. 99 between Neal and Durham-Pentz roads, on the bottom of the first canyon (unnamed) S of the Butte County Sanitary Landfill, near the double set of power transmission lines. 91 Comment
  SEINET14168216  Castilleja subinclusa B. Nightingale 1961-4-29 52 Butte Near Butte Creek, ca 6 miles E of Chico. 61 Comment
  CHSC3372  Casuarina glauca Robert L. Smith 1966-3-1 37 Butte U.S. Plant Introduction Station 5 miles SE of Chico. Comment
  CAS-BOT-BC48819  Ceanothus cuneatus Carl B. Wolf 1937-3-29 8338 Butte Sierra Nevada Foothills, 7 8/10 mi. below Paradise on Chico Road 152 Comment
  CHSC20961  Ceanothus cuneatus M. S. Taylor 1974-3-19 87 Butte On creek side of Humbug Road, in vicinity of Honey Run Covered Bridge. Comment
  HSC59635  Ceanothus cuneatus J. P. Smith 1973-3-22 5933 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  LA42059  Ceanothus cuneatus Carl B. Wolf; 1937-3-29 8338 Butte 7 8/10 mi. below Paradise on Chico Road 152 Comment
  RSA20877  Ceanothus cuneatus Carl B. Wolf 1937-3-29 8338 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  SBBG50583  Ceanothus integerrimus G. L. Carlin 1971-4-25 25 Butte Honey Run Rd crossing of Butte Crk, 3.7 mi E of Chico 121 Comment
  UC203678  Ceanothus integerrimus A. A. Heller 1914-4-16 11293 Butte 8 mi from Chico (on the Chico-Centerville rd) Comment
  UC449695  Ceanothus integerrimus W. P. Taylor 1912-6-6 Butte 4 mi se Chico (Butte Creek.) Comment
  UC80023  Ceanothus integerrimus Mrs. R. M. Austin May 1896 680 Butte e Chico Comment
  UCD111981  Ceanothus integerrimus P. B. Kennedy 1929-5-4 s.n. Butte Butte Creek road from Chico. Comment
  CHSC2507  Ceanothus integerrimus var. macrothyrsus W. Fitzwater 1958-4-19 Butte Humboldt Rd., Chico area. 457 Comment
  RSA77695  Ceanothus prostratus F. W. Peirson 1926-6-21 6780 Butte Butte Meadow, Humboldt Road Comment
  CHSC62371  Celtis B. Castro 1990-5-6 424 Butte Within the Chico Tree Improvement Center at SE edge of Chico, via Morrow Lane, ca 200 ft S of a branch of Comanche Creek (or 'Edgar Slough'). along the entrance road ca 300 ft W of the main office building, at the interface betweeen a riparian and orchard environment. 70 Comment
  CHSC62372  Celtis australis B. Castro 1990-5-6 422 Butte Within the Chico Tree Improvement Center at SE edge of Chico, via Morrow Lane, ca 200 ft S of a branch of Comanche Creek (or 'Edgar Slough'). Along the entrance road ca 50 ft W of the main office building, at the interface between a riparian and orchard environment. 70 Comment
  JEPS117916  Celtis laevigata L. P. Janeway 2008-10-8 9603 Butte Upper Bidwell Park, Chico Cascade Range Foothills (north side of Big Chico Creek 455 m west of Day Camp) 91 Comment
  CHSC107125  Centaurea melitensis L. P. Janeway 2011-6-7 10369 Butte Cascade Range Foothills. East side of Chico; north side of Humboldt Road 3.0 road km east of Bruce Road. 186 Comment
  UC894388  Centaurea melitensis A. A. Heller 1916-4-13 12323 Butte e of Chico (Stilson Canon); Stilson Canon Comment
  CHSC3352  Centaurea solstitialis Robert L. Smith 1966-5-16 6 Butte Skyway, 6 miles E of Chico. Comment
  CHSC3362  Centaurea solstitialis M. Gregg 1966-5-7 161 Butte Approx. 5 miles north east of the Skyway on Humbug Rd. Comment
  CHSC74674  Centaurium tenuiflorum B. Castro 1998-6-13 790 B Butte Ca 5.5 air mi SE of Town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 80 ft N of creek channel, directly under transmission lines. 85 Comment
  CHSC97043  Centaurium tenuiflorum B. Castro; L. P. Janeway 2005-6-5 1479 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  SFV3982  Centromadia pungens M. L. Vincent 1960-9-8 53 Butte Sierra Nevada On bluff overlooking Butte Creek Canyon on the road (Skyway) to Chico from Paradise. 215 Comment
  CHSC92534  Cerastium glomeratum L. P. Janeway 2005-3-10 8344 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715921  Cerastium glomeratum L. P. Janeway 2005-3-10 8344 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC33360  Cercis occidentalis Steve Alvarez 1980-3-24 19 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway road. 270 Comment
  CHSC90504  Cercis occidentalis Suzanne Peters 1988-3-22 22 Butte S side of Butte Creek, vic. Covered Bridge, ca. 7 mi ese of Chico. 121 Comment
  SBBG17426  Cercis occidentalis B. Fuller 1961-4-1 Butte Butte Crk Cyn, Honeyrun Rd below Paradise Comment
  UC481586  Cercocarpus betuloides var. betuloides H. F. Copeland 1923-3-18 347 Butte Humboldt Grade Comment
  CHSC45277  Chamaesyce nutans Vernon Oswald 1988-10-29 3721 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) in se Chico. 68 Comment
  CHSC52022  Chamaesyce ocellata Steven Triano 1988-9-18 252 Butte Pasture ca 300 ft e of Hwy. 32 and 2.5 mi w of its jct. with Hwy. 99. 121 Comment
  JEPS29838  Chamaesyce ocellata Rimo Bacigalupi and L. R. Heckard 1962-6-1 8582 Butte 200 ft e junction of Paradise Rd and rd to Centerville 60 Comment
  UC1303129  Chamaesyce ocellata subsp. ocellata A. A. Heller 1927-9-5 14469 Butte ca 3 mi e Chico Comment
  CHSC60678  Chenopodium californicum Vernon H. Oswald; Jim Snowden 1993-2-27 5231 Butte Near rimrock on the N side of the first canyon (unnamed) on the SE side of Neal Rd., just east of the double power transmission lines. 121 Comment
  CHSC60679  Chenopodium californicum Vernon H. Oswald; Jim Snowden 1993-3-18 5232 Butte Near rimrock on the N side of Nugen Canyon, on the SE side of Neal Rd., about 0.25 mi. south of 'The Narrows'. 121 Comment
  CHSC69680  Chenopodium pratericola Vernon Oswald 1987-6-15 3002 Butte Butte Creek Reserve on the n side of Butte Creek, ne of the Skyway. 76 Comment
  UC1134562  Chlorogalum angustifolium P. L. Johannsen 1935-5-27 678 Butte 3 mi ene Chico; Chico Quad. Comment
  UCD80425  Chlorogalum angustifolium CNPS SN Foothill Team 2005-5-3 SNFN 0197 a Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the reserve entrance gate, and about 75 m from the east fence. 83 Comment
  UCD80427  Chlorogalum angustifolium CNPS SN Foothill Team 2005-5-3 SNFN 0198 a Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the preserve gate, and ca.75 m from the east fence. 85 Comment
  CHSC19948  Chlorogalum pomeridianum var. pomeridianum M. S. Taylor 1975-3-10 406 Butte Above Butte Creek, ca. 1/4 mi w of Covered Bridge, ca. 6 mi e of Chico. 243 Comment
  CHSC59120  Chorizanthe polygonoides L. P. Janeway; B. Castro 1992-5-9 4163 Butte Unnamed canyon on southeast side of Neal Road up-canyon ca 1/2 mi from the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99. 80 Comment
  SJSU9096  Chorizanthe polygonoides C. D. Duncan 1963-5-4 Butte Neal Rd between Chico & Paradise 487 Comment
  CHSC39074  Chorizanthe polygonoides var. polygonoides R. A. Schlising 1980-4-6 3545 Butte E of Chico along Skyway, 3.5 mi S of Paradise. 213 Comment
  CHSC12738  Chorizanthe stellulata M. S. Taylor 1974-5-20 236 Butte Scattered patches ca. 50 ft n of Skyway to Paradise, ca. 6 mi e of Chico. 76 Comment
  CHSC35077  Cicendia quadrangularis R. A. Schlising 1980-3-24 3527 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  CHSC107915  Cirsium arvense L. P. Janeway; Melanie Williams 2011-9-1 10715 Plumas Northern High Sierra Nevada. Plumas National Forest; along Kenzie Ravine 1.1 km east of Little Grass Valley Reservoir, 35 m upstream from Silvertip road crossing; 2.0 air km north of Goat Mountain. 1573 Comment
  UCD169686  Cirsium arvense L. P. Janeway; Melanie Williams 2011-9-1 10715 Plumas Northern High Sierra Nevada. Plumas National Forest; along Kenzie Ravine 1.1 km east of Little Grass Valley Reservoir, 35 m upstream from Silvertip Road crossing; 2.0 air km north of Goat Mountain. 1573 Comment
  CHSC24775  Clarkia arcuata L. J. Gut 1976-4-23 20 Butte Ca. 100 yds s of Butte Creek, ca. 6.2 mi ese of Chico. 121 Comment
  CHSC24880  Clarkia arcuata T. L. Reynolds 1976-4-25 63 Butte Ca. 200 yds s of Butte Creek and ca. 400 yds sw of Covered Bridge, 6.9 mi ese of Chico. 121 Comment
  CHSC32913  Clarkia arcuata J. P. Smith; J. O. Sawyer 1973-4-14 6054 Butte Bruce Lane, between Skyway and Humboldt Road east of Chico. Comment
  CHSC3489  Clarkia arcuata Rober Jaegel 1966-4-20 114 Butte Located near the covered bridge, on Chico, Paradise Road in a meadow. Comment
  CHSC3521  Clarkia arcuata John Francis 1966-4-16 118 Butte On hillside S. of covered bridge (Honey Run). Comment
  CHSC90097  Clarkia arcuata Dan Morgan 1991-4-16 8 Butte S bank Butte Creek, vicinity Covered Bridge. 114 Comment
  CHSC90196  Clarkia arcuata Camela J. Ott 1989-4-11 11 Butte Ca. 100 m s of covered bridge, 10.2 km ese of Chico. 200 Comment
  HSC64500  Clarkia arcuata J. P. Smith, J. O. Sawyer 1973-4-14 6054 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC10748  Clarkia concinna subsp. concinna Lowell Ahart 1966-5-17 Butte Honey Run Road, near Chico. 152 Comment
  CHSC3275  Clarkia concinna subsp. concinna M. L. Hillier 1966-5-11 Butte On a ledge above Honeyrun Rd. 2.4 miles e. of covered bridge. Comment
  UCD80473  Clarkia gracilis CNPS SN Foothill Team 2005-5-2 SNFN 0195 a Butte City of Chico, Doe Mill Meadowfoam Preserve, about 85 m south of the entrance gate. 81 Comment
  CHSC1104  Clarkia mildrediae subsp. mildrediae V. Holt 1935-5-28 Butte Butte Creek. 243 Comment
  CHSC25036  Clarkia purpurea G. Foster 1972-5-23 9 Butte On s side of hwy 32 ca. 3.2 mi e of highway 99 overpass. Comment
  UCD80464  Clarkia purpurea CNPS SN Foothill Team 2005-5-3 SNFN 0197 c Butte City of Chico, Doe Mill Meadowfoam Preserve, located ca. 200 m at 240 degrees from the reserve entrance gate, and about 75 m from the east fence. 83 Comment
  UCD80465  Clarkia purpurea CNPS SN Foothill Team 2005-4-13 SNFN 0078 d Butte City of Chico, Doe Mill Meadowfoam Preserve, at the east end of Warfield Street, ca. 85 m south of the Preserve gate entrance. 82 Comment
  RSA65644  Claytonia palustris F. W. Peirson 1926-6-21 6774 Butte Butte Meadow, Humboldt Road Comment
  CHSC31194  Claytonia parviflora subsp. parviflora M. S. Taylor 1980-4-1 2418 Butte In deep shade in moss over rocks, along s side of Butte Creek, ca. 1/4 mi downstream (w) of Honey Run Covered Bridge, ca. 6 mi e of Chico. 121 Comment
  CHSC4175  Claytonia parviflora subsp. parviflora Kathy Sommarstrom 1967-10-15 23 Butte Found 20 yds off Humbug Rd in front of covered bridge. 76 Comment
  CHSC54368  Claytonia parviflora subsp. parviflora M. Bailey 1991-3-6 545 Butte On property s of Honey Run Road and e of Butte Creek; proposed location of Butte Creek Volunteer Fire Station. 103 Comment
  CHSC60687  Claytonia parviflora subsp. parviflora Vernon H. Oswald; Jim Snowden 1993-3-18 5234 Butte South side of Nugen Canyon, on the SE side of Neal Rd., about 0.4 mi southeast of 'The Narrows'. 109 Comment
  CHSC90009  Claytonia parviflora subsp. parviflora Charlie Crannell 1991-4-23 14 Butte 50 ft south of where Honey Run Road crosses Butte Creek. 103 Comment
  RSA715846  Claytonia perfoliata L. P. Janeway 2005-3-1 8342 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  SEINET7067162  Claytonia perfoliata subsp. mexicana A. G. Vestal 1947-5-1 s.n. Butte Meadow on Little Chico Creek east of Route 32 northwest of Butte Meadow. Coordinate datum: NAD27. Comment
  CHSC19934  Claytonia perfoliata subsp. perfoliata M. S. Taylor 1975-3-10 380 Butte Abundant on s side of Butte Creek, ca. 30 ft s of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC3582  Claytonia perfoliata subsp. perfoliata Susan Carrauthers 1966-2-21 14 Butte Ca. 5 mi S. of city of Chico 1/2 mi E. of Butte Creek beside old Chico-Oroville Road. Comment
  CHSC39937  Claytonia perfoliata subsp. perfoliata M. S. Taylor; V. Oswald 1984-4-4 5379 Butte N side of Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  CHSC92572  Claytonia perfoliata subsp. perfoliata L. P. Janeway 2005-3-1 8342 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC43722  Claytonia rubra subsp. rubra Vernon Oswald 1987-3-30 2302 Butte Butte Creek Reserve on the n side of Butte Creek e of Hwy 99. 65 Comment
  CHSC2478  Clematis lasiantha W. Fitzwater 1958-4-12 Butte Foothills east of Chico. Comment
  CHSC42013  Clematis lasiantha Lowell Ahart 1961-5-4 4 Butte Along Humbug Road, east of Chico. 152 Comment
  CHSC52815  Clematis lasiantha Michael P. Crivello 1979-4-14 Butte 3 mi ne intersection of Skyway and Humbug rd., on Skyway. 100 yds s of road, on south slope. 137 Comment
  CHSC90178  Clematis lasiantha Ross L. Jones 1989-4-12 22 Butte Ca. 200 m s of Butte Creek and 400 m e of Covered Bridge, 10.2 km ese of Chico. 150 Comment
  CHSC11076  Collinsia heterophylla Lowell Ahart 1961-5-4 Butte Along Humbug Road, Chico. 152 Comment
  CHSC1732  Collinsia heterophylla H. Summers 1929-4-24 Butte S. bank of Butte Creek, near covered bridge. 106 Comment
  CHSC3817  Collinsia sparsiflora L. E. Dunkel 1965-2-23 1 Butte Along road bank ca. 200 yards e of covered bridge, on centerville road of Butte Canyon. 54 Comment
  CHSC3970  Collinsia sparsiflora J. Senter 1967-4-3 3 Butte 100 yds. S.E. slope near covered bridge on Humbug Rd. 76 Comment
  CHSC39771  Collinsia sparsiflora Kurt Silberstein 1981-3-24 25 Butte 8 km se of Chico and 8 km nw of Paradise. 125 Comment
  CHSC90146  Collinsia sparsiflora Roberta A. Boer 1980-4-25 20 Butte About 1/4 mi southwest of the junction of Honeyrun and Humbug Roads, about 7 mi east of Chico. 213 Comment
  CHSC90148  Collinsia sparsiflora Joseph Silveira 1982-4-17 16 Butte 90 m south of Butte Creek and 66 m west-southwest of Covered Bridge, 10.2 km east-southeast of Chico. 34 Comment
  HSC71258  Collinsia sparsiflora J. P. Smith 1973-3-22 5914 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  UC196054  Collinsia sparsiflora var. sparsiflora A. A. Heller 1914-3-9 11190 Butte Chico, in a field near the U.S. Plant Introduction Garden Chico Comment
  CHSC1228  Collomia heterophylla V. Holt 1935-5-21 Butte Butte Creek. 67 Comment
  CHSC45347  Collomia heterophylla Vernon Oswald 1987-3-31 2304 Butte Butte Creek Reserve on the s side of Butte Creek n of the Skyway, ca. 0.1 mi w of the double set of transmission lines. On a sand bar along the creek. 85 Comment
  CHSC39926  Comandra umbellata subsp. californica M. S. Taylor; V. Oswald 1984-4-4 5373 Butte Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  RSA325146  Comandra umbellata subsp. californica M. S. Taylor, Vernon H. Oswald 1984-4-4 5373 Butte Along Humbug road, 0.5 mile E of Honey Run Covered Bridge, 6 air miles E of Chico. 183 Comment
  CHSC23369  Convolvulus arvensis Robert A. Schlising 1974-9-4 3156 Butte Roadside along Hwy 32, 4.0 mi NE of junction with Hwy 99 in Chico. Comment
  CHSC50805  Cordylanthus pilosus subsp. trifidus Vernon Oswald; Mary Bailey 1990-8-2 4428 Butte Nance Canyon just north of the power transmission lines, ca. 1 mi north-northeast of the Butte County Sanitary Landfill on Neal Rd. 97 Comment
  POM77913  Cornus glabrata C. C. Bruce 1897-05 1823 Butte Butte Creek. Comment
  CHSC49700  Cortaderia selloana Vernon Oswald 1987-9-9 3240 Butte Butte Creek Preserve on the s side of Butte Creek, n of the Skyway, ca. 0.1 mi e of the diversion dam for Crouch Ditch. On the bottom of a dredger pond. 80 Comment
  CHSC33256  Crassula aquatica R. A. Schlising 1980-3-23 3524 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC65421  Crassula aquatica Vernon Oswald 1988-3-16 3258 Butte Butte Creek Canyon Ecological Reserve on the south side of Butte Creek e of Hwy 99 near the control valves for Durham Mutual Ditch. 67 Comment
  CHSC100971  Crassula connata L. P. Janeway 2008-3-18 9238 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  RSA755353  Crassula connata L. P. Janeway 2008-3-18 9238 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC33291  Croton setiger S. Posner 1972-9-24 2 Butte Edge of Skyway between Hwy. 99 and Humbug Rd. Comment
  POM266636  Crypsis vaginiflora J. C. Roos 1939-7-3 1521 Butte a few miles southeast of Chico Comment
  CHSC41555  Cynodon dactylon R. L. Ondricek-Fallscheer 1982-5-26 136 Butte In yard of house on plateau at sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 192 Comment
  CHSC6707  Cynodon dactylon Marilyn Lee 1968-5-3 162 Butte South side of Skyway, ca 8 miles E. of Chico. Comment
  CAS-BOT-BC7279  Cynoglossum austinae C. C. (Mrs.) Bruce 1897-3-1 2092 Unknown Butte Creek Comment
  UC1600458 Image available Cynoglossum austinae unknown Unknown Comment
  CHSC34528  Cynoglossum grande R. E. Preston 1982-2-11 164 Butte W facing slope of Clements Ridge, ca. 3.5 mi s of Paradise. 304 Comment
  CHSC3878  Cynoglossum grande Gerry Carrauthers 1966-3-7 51 Butte Honeyrun Rd. On hillside above old Honeyrun Bridge. Ca. 5 mi. N.W. of city of Paradise. Comment
  CHSC4715  Cynoglossum grande R. Carter 1966-3-13 295 Butte Found ca. 6 mi. E of Chico at intersection of Honeyrun Rd. and Humbug Rd in Butte Cr. Canyon. Ca. 150 yds. up slope on S side of canyon. Comment
  CHSC45113  Cyperus bipartitus Vernon Oswald 1987-6-15 3001 Butte Butte Creek Reserve on the n side of Butte Creek, ne of the Skyway. 76 Comment
  CHSC68378  Cyperus bipartitus L. P. Janeway; C. A. Janeway 1986-10-4 1903 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC45248  Cyperus eragrostis L. P. Janeway; C. A. Janeway 1986-10-4 1905 Butte Gravel bar along Butte Cr ca 2 1/2 mi east of The Skyway. 45 Comment
  CHSC52479  Cyperus eragrostis R. L. Ondricek-Fallscheer 1982-10-24 157 Butte Seepage area on se side of tip of Flatiron Ridge ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC55607  Cyperus eragrostis L. P. Janeway; C. A. Janeway 1986-10-4 1905 Butte Gravel bar along Butte Creek ca 2 1/2 mi east of Skyway. 45 Comment
  CHSC68384  Cyperus eragrostis L. P. Janeway 1988-6-29 2905 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  CHSC45126  Cyperus erythrorhizos Vernon Oswald 1987-7-8 3099 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. 74 Comment
  CHSC68390  Cyperus erythrorhizos L. P. Janeway; C. A. Janeway 1986-10-4 1907 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC68391  Cyperus erythrorhizos L. P. Janeway 1986-10-19 1934 Butte Along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC68353  Cyperus niger L. P. Janeway 1986-10-19 1926 Butte Along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC68395  Cyperus niger L. P. Janeway; C. A. Janeway 1986-10-4 1909 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC68403  Cyperus niger L. P. Janeway 1988-6-26 2884 Butte Southeast rim of Coon Ridge overlooking Nance Canyon; about 0.6 mi northeast of the high voltage power lines. 182 Comment
  CHSC68404  Cyperus niger L. P. Janeway 1988-6-29 2903 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  CHSC55606  Cyperus squarrosus L. P. Janeway; C. A. Janeway 1986-10-4 1904 Butte Gravel bar along Butte Creek ca 2 1/2 mi east of Skyway. 45 Comment
  CHSC56609  Cyperus strigosus L. P. Janeway 1988-6-26 2885 Butte Southeast rim of Coon Ridge overlooking Nance Canyon; ca 0.6 mi northeast of the high-voltage power-lines. 60 Comment
  CHSC68414  Cyperus strigosus L. P. Janeway; C. A. Janeway 1986-10-4 1906 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC68415  Cyperus strigosus L. P. Janeway; C. A. Janeway 1986-10-4 1908 Butte Gravel bar along Butte Creek about 2 1/2 mi east of The Skyway. 45 Comment
  CHSC68417  Cyperus strigosus L. P. Janeway 1986-10-19 1932 Butte Along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC68418  Cyperus strigosus L. P. Janeway 1986-10-19 1933 Butte Along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC68420  Cyperus strigosus L. P. Janeway 1988-6-29 2904 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  CHSC4626  Cystopteris fragilis R. Carter 1966-3-13 299 Butte Found ca 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon. Comment
  CAS-BOT-BC420351  Darmera peltata A. A. Heller 1916-4-13 12317 Butte Stilson canyon E of Chico Comment
  CAS-BOT-BC420354  Darmera peltata A. A. Heller 1916-4-13 12317 Butte Stilson canyon E of Chico Comment
  UC858320  Darmera peltata A. A. Heller 1916-4-13 12317 Butte e of Chico (Stilson canyon) Comment
  CHSC81213  Daucus pusillus J. Trizzino 2001-4-29 63 Butte End of Potter Road north of Skyway before Honey Run, at meeting with seasonal creek, nearly dry at this time. 80 Comment
  CHSC4033  Delphinium gracilentum Sadie Gualtieri 1967-3-6 Butte Collected: on Skyway to Paradise, 3 to 5 miles outside Chico; fields on S. side of hiway. Comment
  CHSC117610  Delphinium hansenii subsp. hansenii L. P. Janeway 2016-5-5 11941 Butte Cascade Range Foothills. Along Humboldt Road 2.3 road-km northeast of Bruce Road; Chico 152 Comment
  RSA0118757  Delphinium hansenii subsp. hansenii Lawrence P. Janeway 2016-5-5 11941 Butte Cascade Range Foothills. Along Humboldt Road 2.3 road-km northeast of Bruce Road; Chico. 152 Comment
  CHSC3307  Delphinium hesperium M. Gregg 1966-4-23 102 Butte 1/2 mile on the Skyway from Burtons Mesa. This is south east of Chico. On the Butte Creek side of the Skyway. Comment
  HSC41698  Delphinium hesperium J. P. Smith, J. O. Sawyer 1973-4-14 6058 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC34448  Delphinium nudicaule R. E. Preston 1982-2-4 163 Butte On cliff faces, s rim of Butte Creek Canyon above Honey Run Covered Bridge, ca. 7.5 mi e of Chico. 304 Comment
  CHSC3986  Delphinium patens subsp. patens Kathy Sommarstrom 1967-4-15 28 Butte Found 400 yds west of covered bridge, 50 yds from creek on south side. 76 Comment
  CHSC56877  Delphinium patens subsp. patens Eric F. Heinitz 1979-4-25 2 Butte North side of Skyway. Field ca. 30 m n of road. 243 Comment
  CHSC100792  Delphinium variegatum Michael P. Crivello 1979-4-4 Butte Along Highway 32, 3.4 miles east of intersection with Highway 99 in Chico. 137 Comment
  CHSC28157  Delphinium variegatum R. J. Goedl 1979-4-14 17 Butte Ca. 3.5 mi e of Highway 99, 20 ft n of Skyway. Field. 213 Comment
  CHSC41516  Delphinium variegatum Thomas A. Welgan 1979-4-18 12 Butte Ca. 3.5 mi e of Highway 99 and Chico on Skyway 20 ft n of Skyway. Field. 213 Comment
  CHSC41524  Delphinium variegatum Richard J. Slama 1981-4-20 12 Butte Ca. 5 mi. e of Chico, ca. 3 mi. e of hwy 99 and hwy. 32, ca. 2 mi. e on Humboldt Rd. on n side. 99 Comment
  CHSC41525  Delphinium variegatum Richard J. Slama 1981-4-20 12 Butte Ca. 5 mi. e of Chico, ca. 3 mi. e of hwy 99 and hwy 32, ca. 2 mi. e on Humboldt Road on n side. 99 Comment
  CHSC52120  Delphinium variegatum R. E. Alumbaugh 1984-4-26 1 Butte 6.4 mi e of hwy 99 and ca. 50 yds n of Skyway, 8.5 mi e of Chico. 387 Comment
  CHSC52506  Delphinium variegatum D. D. Schultz 1975-5-4 6 Butte 20 yds n of .9 mi n of intersection of Bruce Rd. and E. Park Ave. 70 Comment
  CHSC52507  Delphinium variegatum Lisa Sedlacek 1978-4-19 13 Butte Collected on the ne corner at the jct of Humbug and the Skyway. 77 Comment
  CHSC52817  Delphinium variegatum J. D. Jokerst 1981-5-10 1307 Butte Ca 1/2-3/4 mi S of the Skyway along w side of Hwy 99. Comment
  CHSC53167  Delphinium variegatum Steve Alverez 1980-3-24 20 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway road. 270 Comment
  CHSC53168  Delphinium variegatum Terrie Wilson 1978-4-10 16 Butte N side of Hwy 32, ca 2.9 mi e jct. Hwy 99 and 32 at Chico. 135 Comment
  CHSC53169  Delphinium variegatum Mark Johnson 1974-4-7 19 Butte On s side of Butte Creek, s of Honey Run Covered Bridge, 10 mi se of Chico. 152 Comment
  CHSC53170  Delphinium variegatum M. Johnson 1977-4-26 16 Butte Ca. 50 ft. s of Skyway Dr., ca. 6 mi e of Chico. 457 Comment
  CHSC53296  Delphinium variegatum Denise Dachner 1975-4-8 5 Butte Ca. 4 yds n of highway 32, 2 mi e of Chico. 60 Comment
  CHSC53297  Delphinium variegatum R. O. Gilpatrick 1970-3-20 19 Butte Found 1 mile S. on Bruce Rd. from intersection of Humboldt Rd., Chico. N.W. side of road. Comment
  CHSC53298  Delphinium variegatum R. J. Goedl 1976-4-20 1 Butte Ca. 6.4 mi se of Chico on Skyway, 25 yds s of Highway. Field. 213 Comment
  CHSC53300  Delphinium variegatum J. R. Lee 1974-4-22 3 Butte Found 25 yds on the n side of the Skyway, 6 mi e of the Chico city limits. 152 Comment
  CHSC53301  Delphinium variegatum V. L. Keeran 1976-4-13 20 Butte Ca. 200 m e of Skyway ca. 8.3 km ese of Chico and 10 km wsw of Paradise. 334 Comment
  CHSC53302  Delphinium variegatum Pauleen Broyles 1977-4-11 95 Butte Ca. .8 km se of Covered Bridge on Butte Creek, ca. 5.6 km e of Chico. 165 Comment
  CHSC90040  Delphinium variegatum Rebecca L. Hill 1990-4-8 11 Butte Ca. .5 mi se of jct of Oroville Chico Hwy and Mesa Road. W side of Oroville Chico Hwy, ca. 6 mi se of Chico. 47 Comment
  RSA725062  Delphinium variegatum L. P. Janeway 2006-4-30 8570 Butte Cascade Range Foothills, E edge of City of Chico, NW side of Humboldt road 2.2km NE of Bruce Road. 146 Comment
  UCD96741  Delphinium variegatum J. P. Smith; J. O. Sawyer 1973-4-14 6058 Butte Bruce Lane, between Skyway and Humboldt Road east of Chico. Comment
  CHSC25133  Delphinium variegatum subsp. variegatum J. Brattan 1974-4-15 5 Butte Found ca. 25 ft. s of Skyway, ca. 1.5 mi se of Burton's Mesa Restaurant, ca. 6 mi e of Chico. 152 Comment
  CHSC4081  Delphinium variegatum subsp. variegatum J. E. Bowlin 1967-4-14 19 Butte Near the railroad tracks, ca 30 ft. from the Skyway and ca. 1.8 mi e of the corner of Skyway and Humbug Rd., Chico. 60 Comment
  CHSC90007  Delphinium variegatum subsp. variegatum Charles Crannell 1991-4-22 18 Butte Found along side of Hwy 32, 4.1 mi northeast of Chico. 243 Comment
  CHSC94938  Delphinium variegatum subsp. variegatum K. Lang; J. Lang 2005-3-23 35 Butte Humboldt Rd., Chico. [Label says] Coordinates: 39 degrees 75.989 minutes N, 121 degrees 73.496 minutes W. 289 Comment
  CHSC96558  Delphinium variegatum subsp. variegatum L. P. Janeway 2006-4-30 8570 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.2 km northeast of Bruce Road. 146 Comment
  CHSC9126  Deschampsia cespitosa Willis Ball 1970-3-10 69 Butte Along the Skyway to Paradise, about 5 miles after the turn off to Paradise from hwy 99E. On the right side of the road. 182 Comment
  HSC41096  Deschampsia danthonioides J. P. Smith, J. O. Sawyer 1973-4-14 6052 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  UCD80539  Deschampsia danthonioides CNPS SN Foothill Team 2005-4-12 SNFN 0077 b Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge over a diversion canal). 87 Comment
  CHSC21017  Dichelostemma capitatum subsp. capitatum M. S. Taylor 1975-3-10 408 Butte On s side of Honey Run Covered Bridge and Burre Creek, ca. 8 mi e of Chico. 182 Comment
  CHSC2815  Dichelostemma capitatum subsp. capitatum David Prall 1965-3-14 1 Butte Ca. 2 yards south of Neal Rd. 1 mile east of Highway 99E. 106 Comment
  CHSC28905  Dichelostemma capitatum subsp. capitatum M. S. Taylor 1980-3-1 2332 Butte West end of county dump on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC4223  Dichelostemma capitatum subsp. capitatum L. R. Alexander 1967-3-9 29 Butte Fairly abundant 4 mi. se of Chico ca. 200 yds. Off the left hand side of Paradise road. 182 Comment
  CHSC79869  Dichelostemma capitatum subsp. capitatum Leanna Brown 1999-3-9 20 Butte Canyon Rim Pl. Rd. and Skyway. 130 Comment
  CHSC92530  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2005-3-1 8339 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC9271  Dichelostemma capitatum subsp. capitatum D. C. Burns 1971-3-17 101 Butte Abundant 5 yds. N side of Honey Run rd., ca. 2.3 mi e of the intersection of Honey Run rd. and the Skyway. 91 Comment
  HSC45005  Dichelostemma capitatum subsp. capitatum J. P. Smith 1973-3-22 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  RSA715725  Dichelostemma capitatum subsp. capitatum L. P. Janeway 2005-3-1 8339 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road 134 Comment
  SJSU15295  Dichelostemma capitatum subsp. capitatum Lisa Morton 2002-3-24 5 Butte Upper Bidwell Park, base of N. Rim Trail. 50 Comment
  CHSC23469  Dichelostemma multiflorum J. R. Lee 1974-4-22 3 Butte 25 yds n of Skyway and 6 mi e of Chico city limits. 152 Comment
  CHSC37709  Dichelostemma multiflorum M. S. Taylor 1980-4-27 2570 Butte N side of Humbug Rd, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca. 7 mi. e of Chico. 121 Comment
  CHSC4083  Dichelostemma multiflorum J. E. Bowlin 1967-4-21 27 Butte Ca. 3 feet n of Humbug Rd. and ca. 2.2 miles e of corner of Skyway and Humbug Rd., Chico. 60 Comment
  CHSC7132  Dichelostemma multiflorum J. Borgstrom 1969-5-2 23 Butte Ca. 100 yds e of 99E and Neal Rd, on Neal Rd, 3 ft. off of s side of rd. 39 Comment
  CHSC90610  Dichelostemma multiflorum Roberta A. Boer 1980-4-25 15 Butte About 1/4 mi north of Humboldt Road and 1.5 mi east of the junction of Hwy 32 and Hwy 99, east side of Chico. 131 Comment
  CHSC96556  Dichelostemma multiflorum L. P. Janeway 2006-4-30 8572 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.2 km northeast of Bruce Road. 146 Comment
  RSA725064  Dichelostemma multiflorum L. P. Janeway 2006-4-30 8572 Butte Cascade Range Foothills, E edge of City of Chico, NW side of Humboldt road 2.2km NE of Bruce Road. 146 Comment
  UCD80430  Dichelostemma multiflorum CNPS SN Foothill Team 2006-5-25 SNNR 0958 Butte Horning Ranch, private. 189 Comment
  CHSC113803  Dichelostemma volubile M. Ocken 2011-4-8 Butte Big Chico Creek Ecological Reserve, off Hwy 32. 396 Comment
  CHSC24870  Dichelostemma volubile T. L. Reynolds 1976-4-25 65 Butte Ca. 200 yds s of Butte Creek and ca. 400 yds sw of Covered Bridge, 6.9 mi ese of Chico. 121 Comment
  CHSC2841  Dichelostemma volubile David Prall 1965-4-25 26 Butte On N side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (covered bridge) Comment
  CHSC3170  Dichelostemma volubile Robert D. Briggs 1966-4-23 R- 162 Butte 3 miles northeast of chico on hwy. 32. Comment
  SEINET232463  Dichelostemma volubile Margaret J. Williams, Wayne Roderick 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road. 168 Comment
  SEINET8476819  Dichelostemma volubile M. J. Williams, W. Roderick 1984-5-25 84- 21 -2 Butte 3.3 mi from Paradise on Honey Run Road. 168 Comment
  CHSC62335  Diospyros B. Castro 1990-5-6 421 Butte Within the Chico Tree Improvement Center at SE edge of Chico, via Morrow Lane, close to banks of a branch of Comanche Creek (or 'Edgar Slough'). 70 Comment
  CHSC1753  Diplacus grandiflorus R. M. Staley 1952-7-5 Butte Butte Creek. Comment
  CHSC3304  Diplacus grandiflorus M. L. Hillier 1966-5-1 Butte Above rd. side. 7 miles from C.S.C. Admin. build. n.e. on Humbug Rd. Comment
  CHSC44817  Diplacus grandiflorus R. Banchero 1980-4-13 112 Butte Along the bluffs 0.7 mi NW of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC1774  Diplacus kelloggii H. Summers 1929-4-21 Butte Butte Creek. Comment
  CHSC44672  Diplacus kelloggii R. Banchero 1980-4-13 110 Butte Doe Mill Ridge, ca 2.0 mi SW of the Covered Bridge. 213 Comment
  CHSC44810  Diplacus kelloggii R. Banchero 1980-4-13 113 Butte Along the bluffs 0.7 mi NW of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC109851  Dittrichia graveolens L. P. Janeway 2012-11-14 11083 Butte Cascade Range Foothills. Along Skyway between Chico and Para-dise, 5.3 road km east of its bridge over Butte Creek; along inner edge of west-bound lane. 215 Comment
  CHSC13897  Dodecatheon clevelandii subsp. patulum J. F. Goodwin 1972-3-4 248 Butte 0.3 mi e on Neal Road from Hwy 99 on n side of road. Comment
  CHSC24851  Dodecatheon clevelandii subsp. patulum A. D. Launer 1976-3-14 2 Butte Small population 100 yds n of Humboldt Rd, ca. 4 mi e of Chico. 97 Comment
  CHSC3548  Dodecatheon clevelandii subsp. patulum Gary Dutton 1966-2-21 27 Butte Found N.W. of 99E on Neal Rd. about 1/2 mile. Comment
  CHSC3620  Dodecatheon clevelandii subsp. patulum John Francis 1966-2-21 22 Butte 1/2 mile S. of intersection on Neal Rd. and Hwy 99E on Neal Road. Plant growing in pasture. Comment
  CHSC52455  Dodecatheon clevelandii subsp. patulum Gary R. Koses 1979-3-13 5 Butte 6 mi E of Chico on Skyway; between Skyway and Mesa Restaurant. 152 Comment
  CHSC81291  Dodecatheon clevelandii subsp. patulum J. Trizzino 2001-2-22 4 Butte North side of Humboldt Road, ca. 0.5 mi east of intersection with Bruch Road, about 300' south of rock wall on grazed area. 112 Comment
  CHSC92570  Dodecatheon clevelandii subsp. patulum L. P. Janeway 2005-3-1 8338 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715724  Dodecatheon clevelandii subsp. patulum L. P. Janeway 2005-3-1 8338 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  CHSC19937  Dodecatheon hendersonii M. S. Taylor 1975-3-10 414 Butte Along paths on bluffs overlooking Butte Creek, ca. 1/4 mi sw of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC3542  Dodecatheon hendersonii John Francis 1966-3-19 67 Butte On hillside S. of covered bridge, Honey Run. Comment
  CHSC4174  Dodecatheon hendersonii Kathy Sommerstrom 1967-4-25 25 Butte Found 1/8 mi west of covered bridge, 100 yds from Butte Creek on South bank. 76 Comment
  CHSC31401  Downingia bella Paula J. Minton 1980-4-14 1 Butte 1 mi e of Chico, ca. 120 ft on n side of the Skyway. 70 Comment
  CHSC25346  Downingia bicornuta M. P. Hayes 1977-4-24 19 Butte Under gully culvert along Hwy. 99 ca. 2.2 km s of Butte Creek. 60 Comment
  CHSC70790  Downingia bicornuta var. bicornuta B. Castro 1995-6-6 574 Butte Ca 4 air mi SE of Chico, W of Hwy 99, on E side of the Oro-Chico Hwy ca 0.3 mi N of its jcn with Neal Road. 53 Comment
  CHSC81239  Downingia bicornuta var. bicornuta J. Trizzino 2001-4-25 60 Butte Oro-Chico Highway, 0.25 mi west of Neal Road. 54 Comment
  JEPS29145  Downingia bicornuta var. bicornuta John H. Weiler and A. P. Nelson 1961-5-29 61244 Butte 5 mi s Chico (e side of U.S. Highway 99 E (bridge 12-125)) Comment
  UC1244001  Downingia bicornuta var. bicornuta John H. Weiler and A. P. Nelson 1961-5-29 61244 Butte 5 mi s Chico (e side of U.S. Highway 99 E (bridge 12-125)) Comment
  UC196262  Downingia bicornuta var. bicornuta A. A. Heller 1914-4-24 11316 Butte 5 mi from Chico (Chico-Oroville road) Comment
  CHSC181  Downingia insignis V. Holt 1935-5-15 Butte Oroville road. 76 Comment
  CHSC8625  Draba verna D. Patton 1968-3-5 72 Butte Collected ca. 1 1/2 mi e of Chico near edge of The Skyway. 91 Comment
  CHSC35006  Draba verna var. aestivalis R. E. Preston 1982-2-25 178 Butte 20 ft s of Humboldt Rd, ca. 1/4 mi e of its jct with Bruce Rd; ca. 3 mi e of downtown Chico. 87 Comment
  CHSC39776  Draba verna var. aestivalis David A. Durham 1978-3-22 10 Butte S slope of Butte Creek, near Covered Bridge on Honeyrun Road, 6.5 mi se of Skyway--Highway 99 Junction, at Chico. 137 Comment
  CHSC4138  Draba verna var. aestivalis R. Carter 1966-3-13 298 Butte Found ca. 6 mi. E of Chico at intersection of Honey Run Rd. and Humbug Rd in Butte Cr. Canyon; 50 yds. up slope on S side of canyon. Comment
  CHSC100973  Draba verna var. verna L. P. Janeway 2008-3-18 9236 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC35018  Draba verna var. verna R. E. Preston 1982-3-20 195 Butte Ca. 50 ft n of Humboldt Rd, ca. 3.3 mi e of downtown Chico. 106 Comment
  CHSC48331  Draba verna var. verna Vernon Oswald 1987-3-26 2296 Butte Butte Creek Reserve on the e side of the Skyway and n side of Butte Creek near the entry gate. 71 Comment
  CHSC90037  Draba verna var. verna Mark Hietala 1990-3-20 1 Butte In a stream bed, ca. 2 mi e of Chico, between Hwy 32 and Humboldt Rd. Stream bed. 91 Comment
  JEPS117893  Draba verna var. verna L. P. Janeway 2008-3-18 9236 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road 126 Comment
  CHSC3500  Dryopteris arguta M. Gregg 1966-3-7 25 Butte Approx. 12.3 miles from CSC Ad. Bldg. Up Humbug Rd. off the Skyway across the covered bridge. Comment
  CHSC90008  Dryopteris arguta Charles Crannell 1991-4-23 20 Butte 50 ft south of where Honey Run Road crosses Butte Creek. In gully. 103 Comment
  UCD101932  Dudleya multicaulis R. Curtis 1995-5-27 8 Butte 10 m above Bear Hole, Big Chico Creek, approx. 6 miles south of Bidwell Road in Upper Bidwell Park. Comment
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Apr 7 2018
  CHSC23541  Dysphania botrys M. S. Taylor 1975-10-29 968 Butte Along Butte Creek, ca. 250 yds s of Humbug Rd and ca. 2 mi e of junc of the Skyway and Humbug Rd, ca. 8 mi e of Chico, Comment
  CDA14356  Echinochloa oryzicola B. Voorhees 1997-8-21 s.n. Butte Davit Dayton Ranch, south of Chico. 0 Comment
  CHSC43788  Eleocharis bella Vernon Oswald 1987-5-25 2924 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. 68 Comment
  CHSC38116  Eleocharis macrostachya R. L. Ondricek-Fallscheer 1983-5-10 172 Butte In yard of house on plateau at sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 195 Comment
  CHSC45131  Eleocharis macrostachya Vernon Oswald 1987-7-20 3139 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between the dam for Crouch Ditch and the double set of transmission lines. 82 Comment
  CHSC56613  Eleocharis macrostachya L. P. Janeway 1988-6-26 2886 Butte Southeast rim of Coon Ridge overlooking Nance Canyon; ca 0.6 mi northeast of the high-voltage power-lines. 60 Comment
  CHSC68432  Eleocharis macrostachya L. P. Janeway 1986-10-19 1928 Butte Along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC68435  Eleocharis macrostachya L. P. Janeway 1987-5-7 2017 Butte Bottom of Dead Horse Slough draining the California Park lake, just west of California Road and about 300 ft north of Hwy 32. 74 Comment
  CHSC68439  Eleocharis macrostachya L. P. Janeway 1988-6-29 2907 Butte Spring where Crouch Ravine fades into Cool Ridge; 1/4 mi south of the Skyway, 2.9 mi east of the Skyway bridge over Butte Creek. 170 Comment
  CHSC117404  Eleocharis pachycarpa B. Castro; Tom Boullion, Jessica Boyt 2008-10-21 1771 Butte Sacramento Valley. Ca 3.5 mi SE of Chico, 3 mi NE of Durham, near W edge of Butte Creek ca 0.5 mi upstream of its crossing under the Oro-Chico Hwy. 57 Comment
  CHSC43789  Eleocharis quadrangulata Vernon Oswald 1987-9-9 3239 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, ca. 0.4 mi e of the diversion dam for Crouch Ditch. 82 Comment
  CHSC98334  Elymus caput-medusae L. P. Janeway; B. Castro 2007-5-19 8979 Butte Cascade Range Foothills. Bottom of un-named drainage on southesast side of Neal Road, 2.9 air km northeast of Hwy 99, approximately under the high power lines. On the lowest terrace above the dry dreek; dry hard clay soil, Tuscan Mudflow outcrops (volcanic) above. 91 Comment
  CHSC4355  Elymus glaucus R. L. Smith 1966-5-25 8 Butte Butte Creek Canyon 3 mi e of Skyway. Comment
  CHSC9338  Elymus multisetus Marilyn Lee 1968-5-3 156 Butte Along Skyway, ca. 8 miles E. of Chico. Comment
  CHSC1468  Enemion occidentale R. Calkins 1931-3-3 Butte Little Chico Creek. Comment
  CHSC3342  Ephedra distachya Robert L. Smith 1966-3-1 21 Butte U. S. Plant Introduction Station 5 miles S. E. of Chico. Comment
  CHSC60115  Epilobium cleistogamum B. Castro; L. P. Janeway 1992-5-16 455 Butte In bottoms of vernal pools and drainage channels SE of Neal Road. 54 Comment
  CHSC48633  Epilobium minutum Vernon Oswald 1987-4-20 2333 Butte Butte Creek Preserve on the s side of the creek ne of the Skyway. 85 Comment
  CHSC35104  Epilobium pygmaeum R. Schlising; J. D. Jokerst 1980-7-2 3823 Butte SE of Chico, along Skyway, 0.5 mi W of jct with Humbug Road, by Butte Creek Diversion Channel. Vernal pool along Skyway. 68 Comment
  CHSC28717  Epilobium torreyi R. A. Schlising 1979-5-27 3422 Butte Northeast of Chico and southwest of Paradise, near the Skyway. Comment
  UCD80484  Epilobium torreyi CNPS SN Foothill Team 2005-5-3 SNFN 0197 b Butte City of Chico, Doe Mill Meadowfoam Preserve, located ca. 200 m at 240 degrees from the reserve entrance gate, and about 75 m from the east fence. 83 Comment
  CAS-BOT-BC57258  Equisetum laevigatum John Thomas Howell 1975-6-15 51072 Butte Butte Creek near Chico 60 Comment
  CHSC49237  Eragrostis cilianensis Vernon Oswald 1987-7-6 3095 Butte Butte Creek Preserve on the s side of Butte Creek ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  CAS-BOT-BC296822  Erigeron divergens Mrs. C. C. Bruce 1897-5-1 2115 Butte Butte Creek Comment
  CHSC28948  Erigeron lassenianus var. lassenianus M. S. Taylor 1978-7-19 1791 Butte At the Helispot, ca. 1/2 mi s of Humbug Summit on e side of Humbug Rd. 1950 Comment
  CHSC56750  Erigeron philadelphicus J. D. Jokerst 1980-4-10 Butte Butte Creek canyon; Humbug Road 0.2 mi northeast of its junction with Honey Run Road. Comment
  CHSC3344  Eriobotrya japonica Robert L. Smith 1966-3-1 12 Butte U.S. Plant Introduction Station, 5 miles S.E. of Chico. Comment
  A402750  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Unknown 7 miles below Centerville in the Sierra foothills 76 Comment
  CAS-BOT-BC216046  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Butte 7 miles below Centerville in the Sierra foothills on the banks of Butte Creek 76 Comment
  CAS-BOT-BC216047  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Butte 7 miles below Centerville in the Sierra foothills on the banks of Butte Creek 76 Comment
  CHSC113805  Eriodictyon californicum M. Ocken 2011-4-25 Butte Butte Creek Ecological Preserve. 106 Comment
  CHSC33364  Eriodictyon californicum S. Posner 1972-9-24 Butte Betweem dredger tailings off Humbug Rd. 200 yds. south of Humbug Rd., 3 miles east of Skyway. Comment
  GH402725  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Unknown 7 miles below Centerville in the Sierra foothills Comment
  LA205650  Eriodictyon californicum A. A. Heller; 1915-4-20 sn Butte 7 mi. below Centerville in the Sierra foothills 76 Comment
  POM73515  Eriodictyon californicum C. C. Bruce 1897-05 1811 Butte Butte Creek. Comment
  RSA31114  Eriodictyon californicum A. A. Heller 1915-4-20 11856 Butte 7 miles below Centerville. Butte Creek. 76 Comment
  CAS-BOT-BC259403  Eriogonum luteolum John Thomas Howell 1975-6-15 51075 Butte Butte Creek near Chico. (On Skyway btw. Chico & Paradise) 60 Comment
  CHSC45366  Eriogonum luteolum var. luteolum Vernon Oswald 1987-7-6 3097 Butte Butte Creek Reserve on the n side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  CHSC33983  Eriogonum nudum var. pubiflorum S. Posner 1972-10-24 Butte Between dredger tailings, 150 yds. south of Humbug Rd., 3 miles from Butte Creek Rock Co. Chico. Comment
  CAS-BOT-BC308162  Eriophyllum lanatum var. grandiflorum Frank W. Peirson 1926-6-21 6766 Butte 10 miles east of Chico on the Humboldt Road Comment
  CHSC6702  Eriophyllum lanatum var. grandiflorum Marilyn Lee 1968-5-3 166 Butte North side of Skyway ca 8 miles E. of Chico. Comment
  CHSC31154  Erodium brachycarpum M. S. Taylor 1980-3-1 2331 Butte West end of Dump, on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC4003  Erodium brachycarpum L. R. Alexander 1967-3-29 13 Butte Found 1 mi. from Chico on the left hand side of Paradise road. 60 Comment
  CHSC92575  Erodium brachycarpum L. P. Janeway 2005-3-10 8357 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715730  Erodium brachycarpum L. P. Janeway 2005-3-10 8357 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC100985  Erodium cicutarium L. P. Janeway 2008-3-18 9239 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  JEPS117895  Erodium cicutarium L. P. Janeway 2008-3-18 9239 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road 126 Comment
  CHSC52400  Erodium moschatum Rod Robertson 1979-3-20 10 Butte 10 ft S of Humbug Rd, 100 ft W of Honey Run Rd, 4.3 mi E of Skyway. 85 Comment
  CHSC46111  Eryngium castrense J. D. Jokerst 1982-4-6 1519 Butte East of and adjacent to Highway 99 1.0 mi N of its junction with Neil Rd. Comment
  CHSC42224  Erythranthe bicolor S. C. Henderson 1986-4-15 1 Butte Ca. 50 m s of Butte Creek and 0.1 km w of Covered Bridge, 10.2 km ese of Chico. 120 Comment
  CHSC1759  Erythranthe cardinalis R. M. Staley 1953-7-13 Butte Butte Creek. Comment
  CHSC110631  Erythranthe glaucescens Christopher T. Ivey; Jenn Coughlan 2013-5-17 383 Butte Centerville Rd. about 1 km N of Honey Run bridge. Roadside ditch on W side of road. 115 Comment
  CHSC1789  Erythranthe glaucescens H. Summers 1929-3-25 Butte Butte Creek. Comment
  CHSC24153  Erythranthe glaucescens B. Bunge 1976-4-20 16 Butte Ca. 100 yd s of Skyway, ca 5 mi ese of Chico. 213 Comment
  CHSC39936  Erythranthe glaucescens M. S. Taylor 1984-4-4 5383 Butte N side of Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  CHSC44680  Erythranthe glaucescens R. Banchero 1980-4-13 114 Butte Along the bluffs 0.7 mi NW of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC44786  Erythranthe glaucescens R. Banchero 1980-3-19 70 Butte Along the Skyway 5.5 mi E of Chico, ca 6 mi SW of Paradise. 304 Comment
  CHSC90149  Erythranthe glaucescens Lisa J. Newsum 1984-4-19 17 Butte Bidwell Heights Road 3/4 mi from junction with Hwy 32, east of Chico. 441 Comment
  CHSC90151  Erythranthe glaucescens Kevin J. Kearns 1980-4-24 10 Butte About 50 yds south of Butte Creek and 300 yds west of the Covered Bridge (Covered Bridge is 35 yds southeast of intersection of Humbug and Honey Run Road), 6.5 mi east-southeast of Chico. 140 Comment
  CHSC110630  Erythranthe guttata Christopher T. Ivey; Jenn Coughlan 2013-5-17 381 Butte Centerville Rd. about 2 km NE of Honey Run bridge. 115 Comment
  CHSC110638  Erythranthe guttata Christopher T. Ivey; Jenn Coughlan 2013-5-17 381 Butte Centerville Rd. about 2 km NE of Honey Run bridge. W side of road. 115 Comment
  CHSC48998  Erythranthe guttata Vernon Oswald 1987-5-12 2394 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. 80 Comment
  CHSC110629  Erythranthe microphylla Christopher T. Ivey; Jenn Coughlan 2013-5-17 382 Butte Centerville Rd. about 1 km N of Honey Run bridge. 115 Comment
  CHSC44675  Erythranthe nasuta R. Banchero 1980-4-13 115 Butte Along the bluffs 0.7 mi NE of the Covered Bridge, ca 6.8 mi E of Chico. 304 Comment
  CHSC44687  Erythranthe nasuta R. Banchero 1980-4-13 108 Butte Doe Mill Ridge, ca 2.0 mi SW of the Covered Bridge. 213 Comment
  CHSC44737  Erythranthe nasuta R. Banchero 1980-3-19 69 Butte Along the Skyway 5.5 mi E of Chico, Ca 6 mi SW of Paradise. 304 Comment
  CHSC4195  Erythronium multiscapideum E. P. Parreno 1967-4-10 Butte Ca. 300 yards from Covered Bridge, NE Chico. Comment
  CHSC4196  Erythronium multiscapideum J. Senter 1967-4-10 11 Butte Located 150 yds. S. E. of covered bridge at base of slope, on Honeyrun rd. 60 Comment
  UC204875  Eschscholzia caespitosa A. A. Heller 1914-4-16 11296 Butte 8 mi from Chico (on Chico-Centerville Rd, near Cutte Creek) Comment
  CHSC24875  Eschscholzia californica T. F. Burnham 1976-4-24 17 Butte Ca. .5 mi s of Skyway, 5.8 mi e of Chico. 246 Comment
  CHSC23471  Eschscholzia lobbii J. R. Lee 1974-4-22 3 Butte 10 yds s of road on the Skyway ca. 6 mi from Chico city limits. 152 Comment
  CHSC24152  Eschscholzia lobbii B. Bunge 1976-4-20 15 Butte Ca. 100 yd of Skyway, 5 mi ese of Chico. 213 Comment
  CHSC30972  Eschscholzia lobbii Joann Lacey 1979-3-16 5 Butte Ca. 1.1 mi ne of jct of Humboldt Rd. and Stilson Canyon Rd., ca. 3.9 mi ne of Chico. 129 Comment
  CHSC4000  Eschscholzia lobbii L. R. Alexander 1967-4-2 4 Butte Found 1 mi. from Chico on Paradise road on left hand side of road. 60 Comment
  CHSC92559  Eschscholzia lobbii L. P. Janeway 2005-3-1 8331 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC67920  Eschscholzia lobbii J. P. Smith 1973-3-22 5918 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  RSA715717  Eschscholzia lobbii L. P. Janeway 2005-3-1 8331 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  SJSU15292  Eschscholzia lobbii Lisa Morton 2002-3-30 13 Butte Upper Bidwell Park, Along N. Rim Trail on top of butte. 80 Comment
  CHSC48615  Eucalyptus camaldulensis Vernon Oswald 1987-6-8 2961 Butte Butte Creek Reserve on the nw side of the creek near the Little Chico-Butte Creek Diversion Channel, ne of Hwy 99. 68 Comment
  CHSC48379  Euphorbia lathyris Vernon Oswald 1987-4-22 2341 Butte Along Durham Mutual Ditch e of Butte Creek and ne of Hwy 99, ca 1600 ft s of the diversion dam on Butte Creek. 68 Comment
  RSA572325  Euphorbia ocellata var. ocellata Robert F. Hoover 1938-8-2 3718 Butte 7 miles southeast of Chico. Comment
  CHSC48380  Euphorbia peplus Vernon Oswald 1987-3-26 2297 Butte Butte Creek Reserve on the e side of the Skyway and n side of Butte Creek. Between some ponds in dredger tailings. 73 Comment
  CHSC49837  Euphorbia spathulata Vernon Oswald 1990-3-24 4139 Butte Nance Canyon on the n side of Neal Rd, ca. 0.7 mi ene of the double power transmission lines, ca. 1.7 mi ne of Butte County Sanitary Landfill. 121 Comment
  CHSC12611  Ficus carica S. Posner 1972-9-24 Butte Ca. 150 yds S of Humbug Road, 3 mi E of Skyway. Comment
  CHSC23538  Fragaria vesca M. S. Taylor 1976-2-16 1026 Butte On bank on s side of Butte Creek, ca. 500 yds w of Honey Run Bridge, ca. 8 mi e of Chico. 152 Comment
  A378054  Frangula californica subsp. tomentella A. A. Heller 1915-5-16 11869 Unknown Chico-Centerville road 3 miles from Chico Comment
  CAS-BOT-BC62907  Frangula californica subsp. tomentella A. A. Heller 1915-5-16 11869 Butte Chico-Centerville road 3 mi. from Chico. Comment
  CAS-BOT-BC62944  Frangula californica subsp. tomentella A. A. Heller 1915-5-16 11869 Butte Chico-Centerville road 3 mi. from Chico. Comment
  CAS-BOT-BC62948  Frangula californica subsp. tomentella John Thomas Howell 1975-6-15 51073 Butte Butte Creek near Chico. 60 Comment
  GH378038  Frangula californica subsp. tomentella A. A. Heller 1915-5-16 11869 Unknown Chico-Centerville road 3 miles from Chico Comment
  LA207663  Frangula californica subsp. tomentella A. A. Heller; 1915-5-16 11869 Butte Chico-Centerville rd 3 mi. from Chico Comment
  CAS-BOT-BC223383  Fraxinus dipetala Mrs. C. C. Bruce 1897-4-1 s.n. Butte Humboldt road Comment
  CHSC4661  Fritillaria affinis R. Carter 1966-3-13 301 Butte Found ca. 6 mi. E of Chico at intersection of HoneyRun Rd. and Humbug Rd. in Butte Cr. Canyon. Comment
  CHSC23539  Fritillaria eastwoodiae M. S. Taylor 1976-3-16 1028 Butte Ca. 25 ft s of Honey Run Bridge, ca. 8 mi e of Chico. 152 Comment
  SJSU8739  Fritillaria eastwoodiae L. J. Ericsen 1955-4-17 117 Butte Humbug Rd Comment
  CHSC2287  Fritillaria recurva R. M. Staley 1952-7-17 Butte Butte Creek. 365 Comment
  CHSC4192  Galium aparine L. R. Alexander 1967-4-7 14 Butte Found in abundance ca. 75 yds. S of covered bridge on Humbug Rd. 91 Comment
  CHSC36162  Galium porrigens var. tenue Linyi Maslin 1981-3-25 6 Butte Bank SE of Butte Creek Canyon off Skyway between Chico and Paradise. 242 Comment
  CHSC39240  Galium porrigens var. tenue M. S. Taylor; K. Tharp 1983-3-12 5233 Butte Off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi SSE of Chico. 152 Comment
  CHSC39927  Galium porrigens var. tenue M. S. Taylor; V. Oswald 1984-4-4 5374 Butte Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  CHSC42178  Galium porrigens var. tenue Ellen J. Ramsey 1986-3-18 3 Butte S band of Butte Creek ca. 150 yd WSW of Covered Bridge, ca. 7 mi E of Chico. 91 Comment
  CHSC45083  Galium porrigens var. tenue Chris Bradley; C. A. Bradley 1988-4-26 2 Butte Honey Run Rd., ca. 100 m from Covered Bridge, 10.2 km ESE of Chico. 120 Comment
  CHSC7105  Galium porrigens var. tenue Harley J. Parmenter 1969-2-11 7 Butte 40 yds. N of the entrance to Burtons Mesa. 298 Comment
  RSA325145  Galium porrigens var. tenue M. S. Taylor, V. Oswald 1984-4-4 5374 Butte Along Humbug Rd. Ca 0.5 miles E of Honey Run Covered Bridge. Ca 6 air miles E of Chico. 183 Comment
  CHSC25343  Galium tricornutum Marc P. Hayes 1977-4-24 20 Butte Adjacent Hwy 99 ca. 2.3 km S of Butte Creek. 60 Comment
  RSA129645  Gastridium phleoides P. L. Johannsen 1935-5-27 677 Butte 4 miles SE of Chico. 84 Comment
  UCD80552  Gastridium phleoides CNPS SN Foothill Team 2005-5-3 SNFN 0198 b Butte City of Chico, Doe Mill Meadowfoam Preserve, Ca. 200 m at 240 degrees from the preserve gate, and ca. 75 m from the east fence. 85 Comment
  UC579315  Gastridium ventricosum P. L. Johannsen 1935-5-27 677 Butte four mi se Chico; Chico Quad. 83 Comment
  CHSC12613  Genista monspessulana S. Posner 1972-9-24 Butte Rocky n bank, Butte Creek. Ca. 300 yds s of Humbug Rd., ca. 3 mi e of Skyway. Comment
  CHSC3487  Genista monspessulana Roger Jaegel 1966-4-20 112 Butte Located on Chico - Paradise road, four miles east of Chico. Comment
  CHSC3968  Geranium carolinianum J. Senter 1967-4-10 18 Butte Located 200 yds. S. E. slope ca. 60 yards from Honeyrun Road. 76 Comment
  CHSC8624  Geranium dissectum D. Patten 1968-3-5 71 Butte Collected ca. 3 mi. e of Chico on the n shoulder of Honey Run Road. 91 Comment
  CHSC26604  Geranium molle T. S. Byler 1976-4-20 7 Butte Ca. 100 yds. S of Skyway 5.0 mi. E of California Highway 99-Skyway junction. 228 Comment
  CHSC34809  Geranium molle M. S. Taylor 1980-4-27 2566 Butte On s side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 137 Comment
  CHSC39648  Geranium molle Lowell Ahart 1983-4-10 3926 Butte On steep sidehill, about 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CHSC3974  Geranium molle L. R. Alexander 1967-4-11 10 Butte Found at intersection of Honey Run Rd. and Humbug Road near covered bridge. 91 Comment
  CHSC92576  Geranium molle L. P. Janeway 2005-3-15 8358 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA0028538  Geranium molle L. P. Janeway 2005-3-15 8358 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 kilometers northeast of Bruce Road. 134 Comment
  CHSC42073  Gilia capitata subsp. pedemontana J. P. Arts 1986-4-18 15 Butte Ca. 1 mile s of the covered bridge on Humbug Rd., ca. 5 ne of Chico on the n side of the road. 91 Comment
  CHSC52103  Gilia capitata subsp. pedemontana Steven Triano 1987-4-6 29 Butte Ca. 6 ft n of Honey Run Rd. ca. 3.0 mi e of the Skyway in se Chico. 79 Comment
  CHSC71120  Gilia capitata subsp. pedemontana Jan Monelo 1989-4-11 6 Butte Ca 4 mi e of Chico, n bank of Honey Run Rd. 106 Comment
  CHSC24736  Gilia tricolor L. Casto 1976-4-28 18 Butte 50 yd s of Skyway, ca. 4 mi e of intersection of Hwy 99 and Skyway. 182 Comment
  CHSC40024  Gilia tricolor R. M. Austin 1896-5-1 92 Butte Plains east of Chico. Comment
  CHSC51103  Gilia tricolor J. Monelo 1990-3-20 15 Butte On n side of Skyway, ca 5 mi e of Hwy 99, Chico. Comment
  HSC45815  Gilia tricolor J. P. Smith 1973-3-22 5920 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  HSC45825  Gilia tricolor J. P. Smith, J. O. Sawyer 1973-4-14 6049 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA469706  Gilia tricolor J. P. Smith, J. O. Sawyer 1973-4-14 6049 Butte Bruce Lane, between Skyway and Humboldt Road east of Chico Comment
  CHSC100984  Gilia tricolor subsp. tricolor L. P. Janeway 2008-4-2 9245 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 178 Comment
  CHSC90094  Gilia tricolor subsp. tricolor Elizabeth A. Ballou 1991-3-12 12 Butte About 40 m south of Butte Creek and 0.3 km west of Covered Bridge, 10.2 km east-southeast of Chico. 120 Comment
  RSA755355  Gilia tricolor subsp. tricolor L. P. Janeway 2008-4-2 9245 Butte Cascade Range Foothills. East edge of City of Chico, slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 178 Comment
  CHSC186  Githopsis pulchella subsp. campestris M. Diven 1930-5-15 Butte Humboldt Rd. east of Chico. 243 Comment
  CHSC44966  Githopsis pulchella subsp. campestris Pauleen Broyles 1988-4-19 1106 Butte Lower Nance Canyon. 95 Comment
  JEPS28831  Githopsis pulchella subsp. campestris L. R. Heckard with R. Bacigalupi 1962-6-1 1305 Butte about 3 mi e Chico (just of Centerville road, about 1 mi e of its junction with the Paradise road (Skyway)) 67 Comment
  CHSC60606  Githopsis specularioides L. P. Janeway; B. Castro 1992-5-10 4165 Butte Un-named canyon on southeast side of Neal Road about opposite and up-canyon 1/2 mi from the Butte County Landfill; ca 1 3/4 mi northeast of Hwy 99. 79 Comment
  UC890660  Githopsis specularioides A. A. Heller 1915-4-20 11853 Butte 3 mi from Chico (Chico-Centerville road) Comment
  CHSC49551  Glyceria elata Vernon Oswald 1987-6-8 2958 Butte Butte Creek Reserve on the se side of the creek, ne of Hwy 99. 67 Comment
  CHSC117593  Gnaphalium stramineum B. Castro; Tom Bouillon 2008-7-10 1761 Butte Sacramento Valley. Ca 3.5 mi SE of Chico, 3 mi NE of Durham, near W edge of Butte Creek ca 0.5 mi upstream of its crossing under the Oro-Chico Hwy. Growing on flat bench between W levee and the creek within recently planted, irrigated riparian restoration area. 57 Comment
  UCD132469  Grindelia camporum R. Curtis 1995-5-28 10 Butte 250 meters south of Bear Hole, Big Chico Creek. Approximately 5 miles south of Bidwell Park road in Upper Bidwell park. 300 Comment
  CHSC50313  Hemizonia congesta subsp. clevelandii Vernon Oswald; Mary Bailey 1990-5-19 4219 Butte First side branch of Nance Canyon northeast of the power transmission lines, its head at 'The Narrows,' ca. 1.2 mile northeast of the Butte County Sanitary Landfill on Neal Rd, south of Chico. 115 Comment
  CHSC50797  Hemizonia congesta subsp. luzulifolia Vernon Oswald; Mary Bailey 1990-8-2 4426 Butte Nance Canyon just north of the power transmission lines, ca. 1 mi north-northeast of the Butte County Sanitary Landfill on Neal Rd. 97 Comment
  CHSC50798  Hemizonia congesta subsp. luzulifolia Vernon Oswald; Mary Bailey 1990-8-2 4427 Butte Nance Canyon just north of the power transmission lines, ca. 1 mi north-northeast of the Butte County Sanitary Landfill on Neal Rd. 97 Comment
  CHSC48255  Herniaria hirsuta subsp. hirsuta Vernon Oswald 1987-4-16 2331 Butte Butte Creek Preserve on the n side of Butte Creek e of the Skyway. On a flood plain of the creek. 74 Comment
  CHSC60652  Hesperevax acaulis var. acaulis Vernon H. Oswald; Jim Snowden 1993-3-31 5247 Butte W portion of McKnight Ranch, which is located E of Hwy. 99 between Neal and Durham-Pentz roads. On the edge of streamlet. 54 Comment
  CHSC49847  Hesperocnide tenella Vernon Oswald 1990-3-7 4137 Butte North side of Skyway between Chico and Paradise, ca. 0.2 mi e of the double power transmission lines. 137 Comment
  CHSC50331  Hesperolinon californicum Vernon Oswald; Mary Bailey 1990-5-19 4220 Butte First branch of Nance Canyon northeast of the power transmission lines, its head at 'The Narrows', ca. 1.2 mile northeast of the Butte County Sanitary Landfill on Neal Rd, south of Chico. 115 Comment
  CHSC60104  Hesperolinon californicum B. Castro; L. P. Janeway 1992-5-9 449 Butte In bottom of unnamed canyon SE of Neal Road in dark, deeply cracking clay in grassland phase of surrounding Foothill Woodland community. 70 Comment
  CHSC67247  Hesperolinon californicum James D. Jokerst; Barbara Castro 1992-5-19 3351 Butte Cascade Range Foothills. Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. Collected at the veiny Monardella rediscovery site. 76 Comment
  UC1212237  Hesperolinon micranthum Freed W. Hoffman 1951-5-1 3777 Butte along highway from Chico to Paradise Comment
  CHSC21132  Heteromeles arbutifolia M. S. Taylor 1975-10-29 967 Butte Along Humbug Rd, ca. 4 mi e of junc of the Skyway and Humbug Rd. Comment
  CAS-BOT-BC203377  Hibiscus lasiocarpos var. occidentalis John Thomas Howell; Thos. H. Kearney 1955-9-6 30907 Butte Bank of Butte Creek east of Butte City on road to Oroville Comment
  CAS-BOT-BC203378  Hibiscus lasiocarpos var. occidentalis John Thomas Howell; Thos. H. Kearney 1955-9-6 30907 Butte Butte Creek on road from Butte City to Oroville Comment
  CAS-BOT-BC203379  Hibiscus lasiocarpos var. occidentalis John Thomas Howell; Thos. H. Kearney 1955-9-6 30707 Butte Butte Creek on road from Butte City to Oroville Comment
  CHSC21131  Hirschfeldia incana M. S. Taylor 1975-10-29 974 Butte On n side of Butte Creek, ca. 4 mi e of junc of Humbug Rd and the Skyway. Comment
  CHSC100879  Hoita macrostachya L. P. Janeway 2008-10-8 9604 Butte Cascade Range Foothills Upper Bidwell Park, Chico; north side of Big Chico Cree 455 m west of Day Camp. Comment
  CHSC48569  Hoita macrostachya Vernon Oswald 1987-7-20 3141 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, ca. 0.1 mi w of the dam for Crouch Ditch. 79 Comment
  CHSC4308  Holcus lanatus R. L. Smith 1966-5-20 4 Butte Butte Creek Canyon, Honey Run Rd. 4 mi. e of S Skyway. Comment
  CHSC2151  Hordeum marinum subsp. gussoneanum H. Silberman; D. Isaac 1949-5-4 Butte Humboldt road, 2 mi. E. of Chico. 121 Comment
  CHSC30553  Hordeum marinum subsp. gussoneanum J. D. Jokerst 1980-4-6 548 A Butte Along sides of Humboldt Rd. 1.0 mi W of the jct of Humboldt Rd and Hwy 32. Comment
  CHSC6751  Hordeum marinum subsp. gussoneanum Marilyn Lee 1968-5-3 159 Butte South side of Skyway, ca 6 miles E. of Chico. Comment
  UCD80562  Hordeum marinum subsp. gussoneanum CNPS SN Foothill Team 2005-5-3 SNFN 0198 c Butte City of Chico, Doe Mill Meadowfoam Preserve, ~200 m at 240 degrees from the preserve gate, and ~75 m from the east fence. 85 Comment
  CHSC100994  Hordeum murinum subsp. glaucum L. P. Janeway 2008-4-2 9248 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  JEPS117881  Hordeum murinum subsp. glaucum L. P. Janeway 2008-4-2 9248 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  CHSC8217  Hordeum vulgare D. McClain 1969-5-1 71 Butte 5 ft. s.w. of Highway 99E, 6 1/2 mi. s. of Chico. 54 Comment
  CHSC2503  Hypericum concinnum W. Fitzwater 1958-5-17 Butte Humboldt Rd., Chico area. 792 Comment
  CHSC38122  Hypochaeris glabra R. L. Ondricek-Fallscheer 1983-5-8 168 Butte In yard of house on plateau at sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 188 Comment
  UCD80076  Hypochaeris radicata CNPS SN Foothill Team 2005-4-15 SNFN 0082 b Butte City of Chico, Doe Mill Meadowfoam Preserve, near the NE corner of the reserve (~20 m from the east fence and ~40 m from the north fence). 81 Comment
  CHSC3340  Ilex latifolia Robert L. Smith 1966-3-1 31 Butte U.S. Plant Introduction Station, 5 Miles S.E. of Chico, Calif. Comment
  CHSC116977  Iris macrosiphon Matthew Forster 2013-4-9 Butte Centerville Rd., along flumes trail. 335 Comment
  CHSC24910  Iris macrosiphon T. L. Reynolds 1976-4-23 56 Butte 0.3 mi ne of Covered Bridge, 7.2 mi ese of Chico. Comment
  CHSC27771  Iris macrosiphon David Bendix 1978-4-18 15 Butte 5 m sw of intersection of Neal Road with Skyway, Paradise. 530 Comment
  CHSC2812  Iris macrosiphon David Prall 1965-3-14 Butte At roadside ca. 3 yds. west of Neal Rd. 2 miles east of Highway 99E. 152 Comment
  CHSC3250  Iris macrosiphon Virginia Hagaman 1966-3-28 82 Butte Covered Bridge in ravine at bottom of canyon. Comment
  CHSC36899  Iris macrosiphon M. C. Earley 1982-4-18 16 Butte Ca. 8.5 mi. ese of Chico. 114 Comment
  CHSC3927  Iris macrosiphon Wayne O. Baum 1967-3-24 24 Butte Ca. 2 mi. e. of the Skyway and Humbug Rd. intersection, on the nw. side of Humbug Rd. 91 Comment
  CHSC4034  Iris macrosiphon Sadie Gualtieri 1967-3-6 Butte On Skyway to Paradise, 3 to 5 miles outside of Chico; open field on S. side of hiway. Comment
  CHSC90188  Iris macrosiphon Camela J. Ott 1989-4-11 7 Butte Ca. 100 m ne of covered bridge, along e bank of Centerville Rd. 10.2 km ese of Chico. 120 Comment
  CHSC9276  Iris macrosiphon D. C. Burns 1971-3-17 102 Butte 5 yds. n side of Honey Run rd., ca. 2.3 mi e of the intersection of Honey Run rd. and the Skyway. 91 Comment
  CHSC36900  Iris tenuissima J. D. Nishball 1982-4-16 12 Butte Ca. 8.5 mi. se of Chico, off Honey Run Rd., s end of Covered Bridge; Butte Creek Canyon. 115 Comment
  CHSC81194  Isoetes howellii J. Trizzino 2001-4-25 58 Butte Oro-Chico Highway, 0.25 mi west of Neal Road, wet ditch on north side of road. 54 Comment
  CHSC32607  Isoetes nuttallii J. D. Jokerst; R. A. Schlising 1981-3-23 1267 Butte Ca 100 m S of Neil Rd. Comment
  CHSC44626  Isoetes nuttallii Vernon H. Oswald 1987-4-22 2343 Butte Butte Creek Reserve between the creek and Durham Mutual Ditch, ne of Hwy 99. 67 Comment
  CHSC49603  Juncus acuminatus Vernon Oswald 1987-5-18 2906 Butte Butte Creek Reserve on the n side of Butte Creek e of Hwy 99. 68 Comment
  CHSC49604  Juncus articulatus Vernon Oswald 1987-6-8 2959 Butte Butte Creek Reserve on the se side of the creek, ne of Hwy 99. 67 Comment
  CHSC38117  Juncus bufonius var. bufonius R. L. Ondricek-Fallscheer 1983-5-10 171 Butte SW of driveway in front of house on plateau at sw end of Flatiron Ridge; ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC57154  Juncus bufonius var. bufonius J. D. Jokerst 1980-3-26 Butte East of Chico: 100 m northeast of junction of Skyway and Bruce Road. Comment
  UCD80374  Juncus bufonius var. bufonius CNPS SN Foothill Team 2005-4-15 SNFN 0081 a Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 50 m from the western boundary and ca. 70 m from the northern boundary. 85 Comment
  CHSC62515  Juncus bufonius var. congestus B. Castro; L. P. Janeway 1992-5-10 455 a Butte Banks of winding drainage channels in flats just SE of Neal Road. 54 Comment
  CHSC49612  Juncus exiguus Vernon Oswald 1987-5-12 2389 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. On the edge of Butte Creek. 80 Comment
  CHSC49626  Juncus tenuis Vernon Oswald 1987-5-12 2390 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. Near a dredger pond. 80 Comment
  CHSC49630  Juncus xiphioides Vernon Oswald 1987-5-25 2925 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. On the flood plain of the creek. 68 Comment
  CAS-BOT-BC80920  Juniperus californica Lowell Ahart 1983-4-10 3922 Butte about 1 1/2 miles north-east of HIghway 99 & Pentz Road 100 Comment
  CAS-BOT-BC80922  Juniperus californica Don Heinz 1967-2-12 s.n. Butte Butte Co. dump, Neal Rd., ca. 7 mi. SE of Chico 106 Comment
  CAS-BOT-BC80923  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Nearl road toward Paradise about 1 1/2 miles above the Oroville road junction Comment
  CHSC28868  Juniperus californica M. S. Taylor 1980-3-1 2334 Butte Ca. 100 ft n of Neal Rd, ca. 2 1/2 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 137 Comment
  CHSC28873  Juniperus californica M. S. Taylor; J. Jokerst 1980-2-23 2321 Butte Ca. 50 ft nw of Neal Rd, ca. 2 mi e of Hwy 99, ca. 1 mi e of Neal Rd dump, ca. 7 mi s of Chico. 121 Comment
  CHSC3896  Juniperus californica Don Heinz 1967-2-12 Butte Collected at Butte Co. Dump, Neal Rd., ca. 7 mi. SE of Chico. 106 Comment
  CHSC45224  Juniperus californica Lowell Ahart 1983-4-10 3922 Butte About 1 1/2 miles north-east of Highway 99 and Pentz Road. 91 Comment
  HSC23527  Juniperus californica Don Heinz 1967-2-12 Butte Butte Co. dump, Neal Rd. 7 mi. SE of Chico 107 Comment
  NY21034  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Neal Rd, 2 mi above the jct with the Oroville road 152.4 Comment
  SEINET194312  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Near rd above a mi from jct w/ Oroville Rd 137 Comment
  UC725516  Juniperus californica A. A. Heller 1939-12-10 15486 Butte Neal road above a mile from the junction with the Oroville road 137 Comment
  CHSC3339  Juniperus phoenicea Robert L. Smith 1966-3-4 40 Butte U. S. Plant Introduction Station 5 miles SE of Chico. Comment
  CAS-BOT-BC341296  Lagophylla glandulosa R. F. Hoover 1965-10-16 9719 Butte Deer Creek road east of Chico Comment
  CHSC74363  Lagophylla glandulosa B. Castro 1998-6-13 790 D Butte Ca 5.5 air mi SE of Town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 80 ft N of creek channel, directly under transmission lines. 85 Comment
  OBI15967  Lagophylla glandulosa Robert F. Hoover 1965-10-16 9719 Butte Deer Crk rd E of Chico Comment
  SFV4001  Lagophylla glandulosa M. L. Vincent 1960-9-7 112 Butte Sierra Nevada On dry bluff overlooking Butte Creek Canyon. 3 miles west of Paradise on the Skyway. 215 Comment
  CHSC50314  Lagophylla ramosissima subsp. ramosissima Vernon Oswald; Mary Bailey 1990-5-19 4221 Butte First side branch of Nance Canyon northeast of the power transmission lines, its head at 'The Narrows', ca. 1.2 mile northeast of the Butte County Sanitary Landfill on Neal Rd, south of Chico. 137 Comment
  CHSC100986  Lamium amplexicaule L. P. Janeway 2008-3-18 9232 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC28915  Lamium amplexicaule M. S. Taylor 1980-3-1 2329 Butte West end on n side of Neal Rd, ca 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  RSA755349  Lamium amplexicaule L. P. Janeway 2008-3-18 9232 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  SFV3166  Lamium amplexicaule M. L. Vincent 1961-3-26 30 Butte Sierra Nevada Honey Run Road, near covered bridge over Butte Creek. Southwest of Paradise. 110 Comment
  CHSC274  Lasthenia californica H. Lowe 1963-3-15 Butte Stilson Canyon, Little Chico Creek. 91 Comment
  CHSC7100  Lasthenia californica Nancy Wiseman 1969-4-17 Butte 50 yds n of Skyway ca. 1 mi e of Chico. Comment
  CHSC92563  Lasthenia californica L. P. Janeway 2005-3-10 8352 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA20875  Lasthenia californica C. B. Wolf 1937-3-29 8336 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  UCSB63629  Lasthenia chrysostoma Richard Ernenwein 1995-10-23 135 Butte collected 2.3 mi E, along the S-side of Humboldt Road, E of Chico U S Highway 99 - Humboldt Road, , and Chico Comment
  CHSC13845  Lasthenia fremontii P. Haberkern 1974-4-21 26 Butte In field off the Skyway, ca. 0.5 mi e of Notre Dame Blvd, e of Chico. 60 Comment
  CHSC23466  Lasthenia fremontii J. R. Lee 1974-4-22 3 Butte At edge of pond 1.6 mi e of Chico city limits on the Skyway. The pond was 10 yds n of the roadside. 76 Comment
  CHSC56753  Lasthenia fremontii J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of junction of Bruce Road and Skyway. Comment
  CHSC56754  Lasthenia fremontii J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of junction of Bruce Road and Skyway. Comment
  UC1363795  Lasthenia fremontii Robert Ornduff 1958-4-19 4908 Butte 2 mi e Chico (on Hwy 32) Comment
  UCD80080  Lasthenia fremontii CNPS SN Foothill Team 2005-4-12 SNFN 0077 e Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge across a diversion canal). 87 Comment
  RSA715918  Lasthenia gracilis L. P. Janeway 2005-3-10 8352 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC3182  Lathyrus tingitanus Robert D. Briggs 1966-4-28 R- 159 Butte Honey run road - 6 miles from downtown Chico. Comment
  CHSC3305  Lathyrus tingitanus M. L. Hillier 1966-5-1 Butte Along rd. side 7 miles n.e. of C.S.C. Admin. building on Humbug Rd. Comment
  CHSC101983  Layia fremontii Carl W. Hill 1980-4-12 8 Butte Ca. 0.5 mi E of intersection of hwy and Skyway, 2 mi SE of Chico, on N side of Skyway. 67 Comment
  CHSC31092  Layia fremontii Stephen M. Turek 1980-4-14 1 Butte Ca. 5 yds s of Humboldt Road, 1.7 mi e of E. Monte Road, 50 yds s of Highway 32, 1 mi e of Chico. 71 Comment
  CHSC31353  Layia fremontii Roberta A. Boer 1980-4-25 16 Butte Ca. 1/4 mi n of Humboldt Rd. and 1.5 mi e of the jct of Hwy 32 and Hwy 99, ca. 2.0 mi e of Chico. 131 Comment
  CHSC3453  Layia fremontii Judy Potter 1966-3-21 Butte Roadside-Pentz Road 1 mile east of US 99E. Comment
  CHSC56755  Layia fremontii J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of the junction of Bruce Road and Skyway. Comment
  CHSC92574  Layia fremontii L. P. Janeway 2005-3-1 8340 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC43118  Layia fremontii Maralyn O'Meara 1974-4-20 269 Butte Skyway Drive, 1 mi. E of Hwy. 99 61 Comment
  RSA715727  Layia fremontii L. P. Janeway 2005-3-1 8340 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  SFV4007  Layia platyglossa M. L. Vincent 1961-3-29 39 Butte Sacramento Valley Oroville-Chico Road, 1 mile east of Chico. 60 Comment
  CHSC49554  Leersia oryzoides Vernon Oswald 1987-6-18 3005 Butte Butte Creek Reserve on the s side of the creek, n of the Skyway, ca. 0.25 mi w of the double set of transmission lines. 85 Comment
  CHSC8767  Lemna minor S. Chulasmai 1966-3-25 1 Butte Dradger Pond (3 mile south of Chico). Comment
  CHSC49692  Lemna minuta Vernon Oswald 1987-3-20 2294 Butte West side of Hwy 99, 0.6 mi nw of Butte Creek. In a dredger pond. 67 Comment
  CHSC74364  Leontodon saxatilis subsp. longirostris B. Castro 1998-6-13 790 C Butte Ca 5.5 air mi SE of Town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 80 ft N of creek channel, directly under transmission lines. 85 Comment
  CHSC19949  Lepidium nitidum M. S. Taylor 1975-3-10 410 Butte Ca. 30 yds s of Covered Bridge on Butte Creek, ca. 8 mi e of Chico. Comment
  CHSC34526  Lepidium nitidum R. E. Preston 1982-2-4 159 Butte Top of cliffs, s rim of Butte Creek Canyon above Honeyrun Covered Bridge, ca. 7.5 mi e of Chico. 289 Comment
  CHSC92547  Lepidium nitidum var. nitidum L. P. Janeway 2005-3-10 8348 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715854  Lepidium nitidum var. nitidum L. P. Janeway 2005-3-10 8348 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC39595  Lepidium strictum Lowell Ahart 1983-4-10 3929 Butte Along the edges of dirt roads, about 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CHSC23461  Leptosiphon bicolor J. R. Lee 1974-4-20 2 Butte Found on hill 400 yards sw of Covered Bridge. 7.2 mi from the Chico city limits on Honey Run Road. 137 Comment
  CHSC92564  Leptosiphon bicolor L. P. Janeway 2005-3-10 8353 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715849  Leptosiphon bicolor L. P. Janeway 2005-3-10 8353 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC28978  Leptosiphon bolanderi R. A. Schlising 1980-3-17 3514 Butte E of Chico and SW of Paradise, along Skyway, on cliffs above Butte Creek. 213 Comment
  RSA20873  Leptosiphon bolanderi C. B. Wolf 1937-3-29 8334 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  CHSC52452  Leptosiphon ciliatus R. A. Emmrich 1975-4-24 60 Butte Ca 1/2 mi E of Butte Cr and 1/4 mi SE of Covered Bridge, 6 mi ESE of Chico. 106 Comment
  CHSC81285  Leptosiphon filipes J. Trizzino 2001-4-22 39 Butte South side of Humboldt Road, ca. 0.5 mi east of intersection with Bruce Road. 112 Comment
  CHSC30808  Leptosiphon parviflorus M. S. Taylor; J. D. Jokerst 1980-4-19 2545 Butte S side of Butte Creek, on bluffs above the creek, ca. 1/4 mi upstream (n) from Honey Run Covered Bridge, ca. 6 mi e of Chico. 182 Comment
  CHSC39777  Leptosiphon parviflorus William Askea 1981-4-24 20 Butte Ca. 3 km s of Big Chico Creek and 5.4 km e of Highway 99, 5 km e of Chico. 230 Comment
  CHSC96553  Leptosiphon parviflorus L. P. Janeway 2006-4-30 8562 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725055  Leptosiphon parviflorus L. P. Janeway 2006-4-30 8562 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CHSC50799  Lessingia nana Vernon Oswald; Mary Bailey 1990-8-2 4430 Butte North side of Neal Rd, 0.3 mi east of Hwy 99. Pasture bordering the intermittent stream draining Nance Canyon. 60 Comment
  CAS-BOT-BC341795  Lessingia nemaclada R. F. Hoover 1965-10-16 9720 Butte Deer Creek Road east of Chico Comment
  CAS-BOT-BC341796  Lessingia nemaclada Rimo Bacigalupi; G. T. Robbins 1955-7-15 5305 Butte Rim of Butte Creek Canyon, along Chico-Paradise road, about 5 miles below and southwest of Paradise 304 Comment
  CHSC38121  Lessingia nemaclada R. L. Ondricek-Fallscheer 1982-10-30 160 Butte At edge of road, sw tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 134 Comment
  JEPS13266  Lessingia nemaclada Rimo Bacigalupi with G. T. Robbins 1955-7-15 5305 Butte about 5 mi below and sw Paradise (along Chico-Paradise Road); rim of Butte Creek Canyon 304 Comment
  OBI15788  Lessingia nemaclada Robert F. Hoover 1965-10-16 9720 Butte Deer Crk rd E of Chico Comment
  CHSC2294  Lilium pardalinum subsp. pardalinum R. M. Staley 1952-7-14 Butte Butte Creek. 457 Comment
  CHSC88572  Limnanthes alba subsp. alba T. W. Henrich 2004-4-12 Butte Meghdadi Property' in southeast Chico; about 0.5 km north of Doe Mill Road, about 0.5 km east of south end of Potter Road, and 0.25 km west of old stone fence. Comment
  HSC97149  Limnanthes alba subsp. alba T. W. Henrich 2004-4-12 Butte 'Meghdadi Property' in SE Chico, ca. 0.5 km N of Doe Mill Rd., ca. 0.5 km E of S end of Potter Rd., and 0.25 km W of old stone fence. Comment
  JEPS106505  Limnanthes alba subsp. alba T. W. Henrich 2004-4-12 Butte Chico. Meghdadi Property in SE Chico; about 0.5 km N of Doe Mill Road, about 0.5 km E of S end of Potter Road, and 0.25 km W of old stone fence. Comment
  CHSC3998  Limnanthes douglasii L. R. Alexander 1967-4-9 2 Butte Around pool, ca. 4 mi. s of Chico on 99E. Ca. 50 yds. off the right side of highway. 60 Comment
  CHSC3404  Limnanthes douglasii subsp. rosea Alice L. Stoll 1966-3-21 60 Butte In field alongside Pentz Road, 1 mile from Highway 99E. near Chico. Comment
  CHSC36134  Limnanthes douglasii subsp. rosea Greg C. Halcomb 1978-3-14 2 Butte Ca. 1 mi e of Chico at intersection of Bruce Rd. and Skyway Rd. and 100 yds wnw of Bruce Rd. 70 Comment
  CHSC67541  Limnanthes douglasii subsp. rosea James D. Jokerst; M. S. Taylor 1980-3-20 486 Butte 50 m NW of junction of Bruce Rd. and Skyway, SE side Chico. Comment
  SJSU15294  Limnanthes douglasii subsp. rosea Lisa Morton 2002-3-24 11 Butte Upper Bidwell Park, Base of N. Rim Trail 50 Comment
  CHSC102870  Limnanthes floccosa subsp. californica Elena Gregg 2010-3-24 Butte Northern Sacramento Valley. Vernal pool swale complex on a ridge of basalt on the east side of the Potter Road bike path and north of Humbug Road. The vernal pool/swale complex flows into a drainage that continues west into the Little Chico Creek Overflow Channel. 135 Comment
  CHSC29027  Limnanthes floccosa subsp. californica J. D. Jokerst 1980-3-20 487 Butte Ca 50 m NW of the jct of Skyway and Bruce Rd (ca 0.5 mi E of Hwy 99). Comment
  CHSC55138  Limnanthes floccosa subsp. californica Bill Johnson 1991-4-4 Butte 100 yds nw of intersection of hwy 32 and Bruce Road s of Dead Horse Slough, east of Chico. 76 Comment
  CHSC67542  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3238 Butte Doe Mill population N of Warfield Rd., E of Bruce Rd., W of Butte Creek Diversion Channel. On young fan deposits of Little Chico Creek. 76 Comment
  CHSC67553  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3239 A Butte Doe Mill population E of Butte Creek Diversion Channel, S of Doe Mill Rd. In a vernal pool. 80 Comment
  CHSC67554  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3240 Butte W of dirt road, E of Butte Creek Diversion Channel. 79 Comment
  HSC93614  Limnanthes floccosa subsp. californica James D. Jokerst, M. S. Taylor 1980-3-20 487 Butte 50 m NW of Jct. of Bruce Rd. and Skyway, SE side Chico. Comment
  UC1748332  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3241 Butte N of Hwy. 32 across from church 76 Comment
  UC1748333  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3239 A Butte E of Butte Creek Diversion Channel, S of Doe Mill Rd. 80 Comment
  SFV2131  Limnanthes striata M. L. Vincent 1961-3-29 33 Butte Sacramento Valley 1 mile west of Chico. On Highway to Oroville. 60 Comment
  UC907828  Linanthus bicolor P. B. Kennedy 1929-5-4 Butte between Chico and Paradise (halfway-up Hunnicut Grade); Hunnicut Grade Comment
  UC718541  Linanthus bolanderi Carl B. Wolf 1937-3-29 Butte 7.8 mi below Paradise (on Chico Road); Sierra Nevada Foothills 152 Comment
  CHSC4190  Linanthus dichotomus Kathy Sommarstrom 1967-4-15 26 Butte Foothills. Found 400 yds west of covered bridge, 40 yds south of creek. 76 Comment
  UC907831  Linanthus filipes P. B. Kennedy 1929-5-4 Butte between Paradise to Chico at summit Comment
  UC907829  Linanthus parviflorus P. B. Kennedy 1929-5-4 Butte between Chico and Paradise (halfway up Hunnicut road) Comment
  CHSC28951  Lindernia dubia var. anagallidea M. S. Taylor 1978-7-21 1845 Butte Ca. 20 ft e of the Midway, ca. 7 mi s of Durham, in ricefield. 30 Comment
  CHSC64017  Lindernia dubia var. anagallidea B. Castro 1987-8-29 214 Butte At S edge of Butte Ck ca 2.1 mi S of Skyway and ca 1/4 miles E of Hwy 99 bridge. 60 Comment
  CHSC55619  Lipocarpha L. P. Janeway 1986-10-19 1929 Butte In rocks and sand along Butte Creek on west side of Hwy 99. 60 Comment
  CHSC55621  Lipocarpha L. P. Janeway; C. A. Janeway 1986-10-4 1902 A Butte Gravel bar along Butte Creek ca 2 1/2 mi east of Skyway. 45 Comment
  CHSC55617  Lipocarpha aristulata L. P. Janeway; C. A. Janeway 1986-10-4 1902 B Butte Gravel bar along Butte Creek ca 2 1/2 mi east of Skyway. 45 Comment
  CHSC74726  Lipocarpha aristulata B. Castro 1987-8-25 203 A Butte Lower Butte Creek, on cobble and gravel bars along S edge, ca 0.25 mi E of its crossing under Hwy 99, and 2.1 mi S of the Skyway. 60 Comment
  CHSC3976  Lithophragma E. P. Parreno 1967-4-10 Butte Not so common locally. 300 yards from covered bridge. Comment
  CHSC2819  Lithophragma bolanderi David Prall 1965-3-14 9 Butte At edge of cliff ca. 30 yds. south of Neal Rd. 1mile East of HW 99E. 106 Comment
  CHSC28033  Lithophragma parviflorum J. D. Jokerst 1979-3-18 171 Butte 200 yds off Hwy 32, 3 mi e of Chico. Comment
  CHSC3405  Lithophragma parviflorum Alice L. Stoll 1966-3-26 81 Butte On Humbug Road near the Covered Bridge on way to Paradise. Comment
  CHSC3999  Lithophragma parviflorum L. R. Alexander 1967-4-9 8 Butte Found 4.5 mi. from Chico on Paradise road ca. 300 yds. off the left hand side of the road. 182 Comment
  CHSC4032  Lithophragma parviflorum Sadie Gualtieri 1967-3-6 Butte Collected: On Skyway to Paradise, 3 to 5 miles outside Chico, open fields on N. side hiway. Comment
  CHSC4085  Lithophragma parviflorum J. E. Bowlin 1967-4-14 22 Butte Near the railroad tracks, ca. 30 feet from Skyway and ca. 1.8 miles e of corner of Skyway and Humbug Rd., Chico. 60 Comment
  CHSC1655  Lithophragma parviflorum var. trifoliatum B. Hetherington 1935-3-27 Butte Foothills. Comment
  CHSC92562  Lithophragma parviflorum var. trifoliatum L. P. Janeway 2005-3-10 8354 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715850  Lithophragma parviflorum var. trifoliatum L. P. Janeway 2005-3-10 8354 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC27840  Lithospermum californicum T. B. Devine 1977-6-5 426 Butte Beside Humbug Rd. Next to PG and E Flume. 853 Comment
  CHSC100991  Lolium multiflorum L. P. Janeway 2008-3-18 9235 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC41557  Lolium multiflorum R. L. Ondricek-Fallscheer 1982-5-26 137 Butte In yard of house on plateau at sw end of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 192 Comment
  RSA755351  Lolium perenne subsp. multiflorum L. P. Janeway 2008-3-18 9235 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC32603  Lomatium caruifolium var. denticulatum Don Kroessig 1979-4-15 1 Butte SE of Chico at the intersection of the Skyway and Bruce Road. 76 Comment
  CHSC14053  Lomatium utriculatum J. Farrell 1974-5-15 26 Butte Collected in grassy area near Honey Run Covered Bridge on Humbug Rd, ca. 6 mi e of Chico. Comment
  CHSC33347  Lomatium utriculatum Laurel L. Huey 1980-4-21 4 Butte Ca. 80 m se of Butte Creek at Covered Bridge. 125 Comment
  CHSC34609  Lomatium utriculatum Eric F. Heinitz 1979-4-25 2 Butte North side of Skyway. Grassy flat ca. 25m n of road. 243 Comment
  CHSC34798  Lomatium utriculatum M. S. Taylor 1980-4-27 2569 Butte On n side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 121 Comment
  CHSC90586  Lomatium utriculatum Jack Judkins 1983-4-16 14 Butte 6 mi east-southeast of Chico, 200 yds south of Butte Creek, 200 yds southeast of Covered Bridge. 274 Comment
  CAS-BOT-BC240450  Lonicera hispidula Mrs. J. H. Morrison 1932-6-12 s.n. Butte Mountains above Durham Comment
  JEPS34381  Lotus wrangelianus Rimo Bacigalupi, and L. R. Heckard 1963-5-14 8857 Butte about 2 mi above and e Butte Creek Canyon beginning at jct with Paradise Skyway (along Humbug Road, bottom of Butte Creek Canyon); Butte Creek Canyon 91 Comment
  SJSU10702  Lupinus albicaulis F. S. Gereb 1968-5-4 93 Butte 5 mi E of Chico Comment
  CHSC57378  Lupinus bicolor Sean Brown 1990-4-17 15 Butte Vic. covered bridge, s bank of Butte Ck., ca. 11.6 km ese of Chico. 120 Comment
  CHSC90362  Lupinus bicolor Andy Winkler 1980-4-15 4 Butte About 1/2 mi east of Hwy 99 Butte Creek bridge on the north side of Butte Creek. Comment
  CHSC90489  Lupinus bicolor Steve Alvarez 1980-3-24 17 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway road. 270 Comment
  CHSC90500  Lupinus bicolor E. Ray Latham 1988-3-15 Butte 100 m east of east end of Fremont Street, Chico. Field. 30 Comment
  CHSC90515  Lupinus bicolor Michael D. Mayes 1983-4-19 16 Butte Ca. 6 mi ese Chico s side of Butte Creek, 75 yds w of Covered Bridge. 152 Comment
  HSC71549  Lupinus bicolor J. P. Smith 1973-3-22 5913 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  UC865499  Lupinus bicolor A. A. Heller 1915-4-20 11857 Butte 7 mi below Centerville (in Sierra foothills); Sierra foothills, below Centerville Comment
  UCD107232  Lupinus bicolor A. A. Heller 1915-4-20 11857 Butte 7 miles below Cenerville in the Sierra foothills. 76 Comment
  UCD77845  Lupinus bicolor Robert E. Preston 2004-3-23 2207 Butte Chico, SW of jct Humboldt Rd and Bruce Rd 79 Comment
  CHSC7094  Lupinus bicolor var. tridentatus Nancy Wiseman 1969-4-17 Butte 10 yds n of Skyway, 3.8 mi e of Chico. Comment
  CHSC90378  Lupinus nanus E. Ray Latham 1988-4-21 Butte 100 m east of east end of Fremont Street, Chico. Field. 30 Comment
  CHSC25057  Lupinus nanus var. apricus Mark Johnson 1974-5-1 22 Butte 1/2 mile s of Butte Creek, 1 mi se of Covered Bridge and Honey Run Road, 10 mi se of Chico. 228 Comment
  CHSC3935  Lupinus nanus var. apricus J. Senter 1967-4-10 17 Butte Located on Skyway turnout 4.5 mi. E. of Hwy. 99E. 396 Comment
  CHSC92538  Lupinus pachylobus L. P. Janeway 2005-3-10 8347 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715922  Lupinus pachylobus L. P. Janeway 2005-3-10 8347 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC13877  Luzula comosa var. subsessilis L. W. Blaisdell 1974-4-27 12 Butte Along Honey Run Rd. Covered Bridge area. 152 Comment
  CHSC20145  Luzula comosa var. subsessilis D. B. Dewey 1975-2-28 9 Butte Ca. 2 mi up Nance Canyon from start of foothills. Near stream. 91 Comment
  CHSC4296  Luzula comosa var. subsessilis R. L. Smith 1966-5-5 Butte US Plant Introduction Station. 5 mi sw of Chico. Comment
  CHSC54385  Luzula macrantha M. Bailey 1991-3-6 546 Butte On property s of Honey Run Road and e of Butte Creek; proposed location of Butte Creek Volunteer Fire Station. 103 Comment
  CHSC43841  Lycopus americanus B. Castro 1987-8-25 208 Butte Butte Ck ca 1/2 mi e of its crossing of Hwy 99, ca 2.1 mi s of Skyway in Chico. 68 Comment
  SFV4039  Madia citriodora M. L. Vincent 1960-9-8 91 Butte Sierra Nevada On bluff overlooking Butte Creek Canyon on the road (Skyway) to Chico from Paradise. 215 Comment
  CAS-BOT-BC342720  Madia elegans Margaret J. Williams; Wayne Roderick 1984-5-25 84- 21 -3 Butte 3.3 mi from Paradise on Honey Run Road 167 Comment
  CHSC43735  Malus Vernon Oswald 1987-3-30 2300 Butte Butte Creek Reserve between Butte Creek and the Durham Mutual Ditch ne of Hwy 99. 70 Comment
  CHSC65465  Malus Vernon Oswald 1988-5-30 3346 Butte Butte Creek Canyon Ecological Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 70 Comment
  CHSC44978  Marah fabacea J. Witzman 1987-3-7 6 Butte Along Butte Creek nr Humbug Rd. ca 3 mi n of jct with Skyway, se of Chico. 97 Comment
  CHSC3917  Marah fabacea var. agrestis Wayne O. Baum 1967-3-13 27 Butte Ca. 5 mi. e. of Chico on the n. side of the Skyway, along cliff bank. 304 Comment
  CHSC3276  Marrubium vulgare M. L. Hillier 1966-5-7 Butte Along rd. side about 3 miles n.e. of the Skyway on Humbug rd. Comment
  CHSC43049  Marsilea vestita L. P. Janeway 1987-5-7 2018 Butte Dead Horse Slough. Just west of California Ave and ca 300 ft north of hwy 32. 74 Comment
  CHSC7074  Marsilea vestita Bryan C. Willingham 1969-4-20 15 Butte N side of Skyway, next diversion canal, 3 mi se Chico. 91 Comment
  CHSC2825  Matricaria discoidea David Prall 1965-4-25 Butte Humbug Road 0.3 miles west of junction of Honey Run Rd. (covered bridge). Roadside. 198 Comment
  CHSC391  Matricaria discoidea P. Delaplane 1965-5-11 76 Butte 3-4 mi W of Paradise on Skyway ca 1/2 way to Paradise from Chico. 243 Comment
  CHSC3343  Maytenus boaria Robert L. Smith 1966-3-1 11 Butte U.S. Plant Introduction Station 5 miles S.E. of Chico. Comment
  CHSC19944  Meconella californica M. S. Taylor 1975-3-10 407 Butte On bluffs overlooking Butte Creek, ca. 500 ft sw of Covered bridge, ca. 8 mi e of Chico. Comment
  CHSC23465  Meconella californica J. R. Lee 1972-4-20 2 Butte Found on hill 600 yds sw of Covered Bridge, 7.2 mi from the Chico city limits. 182 Comment
  CHSC28966  Meconella californica J. D. Jokerst 1980-11-23 446 Butte Edge of flat ridge top ca 1/4 mi NW of Neal Rd. 198 Comment
  CHSC34400  Meconella californica R. N. Bowman 1981-5-21 2083 Butte East-facing slope, s bank of Butte Creek, .1 km w of Covered Bridge, 10.2 km ese of Chico. 120 Comment
  CHSC3502  Meconella californica M. Gregg 1966-3-7 33 Butte On Humbug Rd. at covered Bridge. On hill directly behind the old covered bridge. Approx. 9 miles from the CSC campus. Comment
  CHSC42163  Meconella californica S. K. Fukuyama 1986-3-18 2 Butte 150 ft s of Butte Creek, ca 300 yds w of Covered Bridge, 6.3 mi ese of Chico. 118 Comment
  CHSC42202  Meconella californica Victoria Lorber 1986-3-18 Butte S bank of Butte Creek, ca 150 yd wsw of Covered Bridge, ca 7 mi e of Chico. 91 Comment
  CHSC4621  Meconella californica R. Carter 1966-3-13 296 Butte Found ca. 6 mi. E of Chico at intersection of Honey- Run Rd. and Humbug Rd. in Butte Cr. Canyon. Growing at margin of open area 50 yds. up slope on S side of canyon. Comment
  CHSC7075  Meconella californica M. I. Moore 1969-4-26 5 Butte Ca. 1000 yds. e of Big Chico Creek. e of covered bridge on Honey Run Rd., Chico. 106 Comment
  CHSC90233  Meconella californica Ross L. Jones 1989-4-12 24 Butte Ca. 100 m s of Butte Creek and 200 m w of Covered Bridge, 10.2 km ese of Chico. 150 Comment
  CHSC45286  Medicago lupulina Vernon Oswald 1987-5-12 2387 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, near the Crouch Ditch Dam. 79 Comment
  CHSC43669  Medicago minima Vernon Oswald 1987-4-7 2312 Butte Butte Creek Reserve on the north edge of the creek ca. 0.1 mi e of Hwy 99. 65 Comment
  CHSC45287  Medicago minima Vernon Oswald 1987-4-6 2309 Butte Butte Creek Reserve on the n side of Butte Creek n of the Skyway, ca. 200 ft w of the single transmission line. 80 Comment
  CHSC949  Medicago polymorpha A. Koopman 1929-4-25 Butte Butte Creek. 76 Comment
  CHSC39594  Medicago praecox Lowell Ahart 1983-4-10 3924 Butte On a steep sidehill, about 1 1/2 miles northeast of Highway 99 and Pentz Road. 100 Comment
  CHSC45288  Medicago praecox Vernon Oswald 1987-4-8 2314 Butte Butte Creek Reserve on the s side of Butte Creek n of the Skyway, ca. 0.1 mi w of the double set of transmission lines. 85 Comment
  CHSC3335  Melaleuca leucadendra Robert L. Smith 1966-3-3 25 Butte U. S. Plant Introduction Station 5 miles S. E. of Chico. Comment
  CHSC3341  Melaleuca nodosa Robert L. Smith 1966-3-1 33 Butte U. S. Plant Introduction Station 5 miles S. E. of Chico. Comment
  CAS-BOT-BC269381  Melica californica A. A. Heller 1915-4-20 11860 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  CAS-BOT-BC269382  Melica californica A. A. Heller 1915-4-20 11860 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  GH360258  Melica californica G. P. Van Eseltine 1918-4-29 1135 Unknown Four miles southeast of Chico, near Bridge over Battle Creek. Comment
  UC818852  Melica californica A. A. Heller 1915-4-20 11860 Butte 7 mi below Centerville (on banks of Butte Creek, in the Sierra foothills); Sierra, Butte Creek 76 Comment
  UC926585  Melica californica G. P. Van Eseltine 1918-4-29 Butte 4 mi se Chico (near bridge over Battle Creek) Comment
  UCD86412  Melica californica Mrs. R. M. Austin 1896-5-1 52 Butte Little Chico Creek. Comment
  UCD87014  Melica californica A. A. Heller 1915-4-20 11860 Butte Butte County. 7 miles below Centerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  UCD87016  Melica californica A. A. Heller 1915-4-20 11860 Butte Butte County. 7 miles below Cenerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  CHSC100993  Melica californica var. nevadensis L. P. Janeway 2008-4-2 9250 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  GH360277  Melica californica var. nevadensis A. A. Heller 1915-4-20 11860 Unknown 7 miles below Centerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek 76 Comment
  JEPS117931  Melica californica var. nevadensis L. P. Janeway 2008-4-2 9250 Butte East edge of City of Chico Cascade Range Foothills (slope on north side of Humboldt Road 2.9 km northeast of Bruce Road) 167 Comment
  UCD88614  Melica subulata August L. Hormay 1929-7-7 s.n. Butte Butte Creek, 4 miles below Butte Mtn. Ranger Station. Comment
  CAS-BOT-BC262499  Melica torreyana A. A. Heller 1915-4-20 11859 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  CAS-BOT-BC262503  Melica torreyana A. A. Heller 1915-4-20 11859 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  CHSC60210  Melica torreyana T. B. Devine 1980-4-10 678 Butte Beside Humbug Rd., ca. 1/4 mi. above covered bridge. Roadside. Comment
  CHSC6148  Melica torreyana E. Parreno 1968-4-28 80 Butte W end of Covered Bridge, Chico. Comment
  GH360462  Melica torreyana A. A. Heller 1915-4-20 11859 Unknown 7 miles below Centerville in the Sierra foothills 76 Comment
  UCD89080  Melica torreyana A. A. Heller 1915-4-20 11859 Butte Butte County. 7 miles below Cenerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  UCD89081  Melica torreyana A. A. Heller 1915-4-20 11859 Butte Butte County. 7 miles below Cenerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  CHSC25294  Melissa officinalis M. S. Taylor 1977-7-15 1415 Butte On n side of Butte Creek directly beneath Covered Bridge, ca. 8 mi e of Chico. 243 Comment
  CHSC43843  Melissa officinalis B. Castro 1987-8-25 209 Butte Butte Ck ca 1/2 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 68 Comment
  CHSC43839  Mentha canadensis B. Castro 1987-8-25 212 Butte At s edge of Butte Ck ca 1/2 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 68 Comment
  CHSC43840  Mentha canadensis B. Castro 1987-8-25 210 Butte In midstream Butte Ck ca. 1/2 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 68 Comment
  CHSC43844  Mentha canadensis B. Castro 1987-8-25 207 Butte At s edge of Butte Ck ca 1/4 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 60 Comment
  CHSC43846  Mentha canadensis B. Castro 1987-8-25 203 Butte In Butte Ck ca 1/4 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 60 Comment
  CHSC43845  Mentha spicata B. Castro 1987-8-25 206 Butte Butte Ck ca 1/4 mi e of its crossing of Hwy 99 (ca 2.1 mi s of Skyway in Chico). 60 Comment
  CHSC1021  Mentzelia laevicaulis R. M. Staley 1952-7-16 Butte Along Skyway. 365 Comment
  CAS-BOT-BC428767  Micranthes californica M. S. Taylor; K. Tharp 1983-3-12 5235 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC21148  Micranthes californica M. S. Taylor 1975-3-10 416 Butte On s side of Butte Creek, ca. 1/4 mi w of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC30666  Micranthes californica M. S. Taylor 1980-3-1 2341 Butte On bluffs overlooking Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 1219 Comment
  CHSC34447  Micranthes californica R. E. Preston 1982-2-4 161 Butte Top of cliffs, s rim of Butte Creek Canyon above Honeyrun Covered Bridge, ca. 7.5 mi e of Chico. 289 Comment
  CHSC39241  Micranthes californica M. S. Taylor; K. Tharp 1983-3-12 5235 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CAS-BOT-BC428993  Micranthes fragosa J. D. Jokerst; M. S. Taylor 1980-2-23 447 Butte Ca. 1/4 mi ne of Neal Rd, ca. 7 mi s of Chico. Comment
  CHSC3287  Micranthes integrifolia M. L. Hillier 1966-3-6 Butte 4 miles s.e. of C.S.C. Admin. build. on the Skyway to Paradise about 50 ft. from the rd. on the s. side of Butte Creek. Comment
  CHSC33397  Micranthes integrifolia Lynette Wood 1979-3-6 Butte N side of Skyway (road Chico-Paradise), ca. 550 ft. out along canyon edge. 243 Comment
  CHSC3442  Micranthes integrifolia Judy Potter 1966-3-7 Butte Hill east of Honey Run Bridge. Comment
  CHSC3638  Micranthes integrifolia Alice L. Stoll 1966-3-7 50 Butte Near Covered Bridge, Honey Run Road, Paradise. Comment
  CHSC4219  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; on slope ca. 25 yds. up slope on S side canyon. Comment
  CHSC4656  Micranthes integrifolia R. Carter 1966-3-13 294 Butte Found ca. 6 mi. E of Chico at intersection of Honey-Run Rd. and Humbug Rd. in Butte Cr. Canyon; slope ca. 25 yds. up slope on S side canyon. Comment
  CHSC81305  Micranthes integrifolia J. Trizzino 2001-2-22 5 Butte North side of Humboldt Road, ca 0.5 mi east of intersection with Bruce Road. 112 Comment
  CHSC92569  Micranthes integrifolia L. P. Janeway 2005-3-1 8336 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC71108  Micropus californicus Jan Monelo 1989-4-11 8 Butte Ca 50 yds e of Covered Bridge, ca 7 mi e of Chico. 121 Comment
  SJSU10057  Micropus californicus C. D. Duncan 1963-5-4 Butte Neal Rd between Chico & Paradise 487 Comment
  CHSC23462  Micropus californicus var. californicus J. R. Lee 1974-4-22 3 Butte Found 25 yds n of Skyway roadside 6 miles e of the Chico city limits. 152 Comment
  CHSC24149  Micropus californicus var. californicus B. Bunge 1976-4-22 12 Butte Ca. 100 yd of Skyway, 5 mi ese of Chico. 213 Comment
  CHSC24697  Micropus californicus var. californicus L. Casto 1976-4-28 20 Butte 50 yd s of Skyway, ca. 4 mi e of intersection of Hwy 99 and Skyway. 182 Comment
  CHSC33350  Micropus californicus var. californicus R. M. Winchell 1980-4-17 3 Butte Covered Bridge along Little Butte Creek. Comment
  CHSC90182  Micropus californicus var. californicus Thomas M. Scott 1989-4-19 13 Butte About 50 m east of Butte Creek at Covered Bridge; 10.2 km east-southeast of Chico. 120 Comment
  CHSC96563  Micropus californicus var. californicus L. P. Janeway 2006-4-30 8564 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  HSC68241  Micropus californicus var. californicus J. P. Smith, J. O. Sawyer 1973-4-14 6045 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  RSA725057  Micropus californicus var. californicus L. P. Janeway 2006-4-30 8564 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  UCD80099  Micropus californicus var. californicus CNPS SN Foothill Team 2005-4-13 SNFN 0079 b Butte City of Chico, Doe Mill Meadowfoam Preserve, about 30 m from the western boundary and 60 m from the southern boundary. 85 Comment
  UCD80102  Microseris acuminata CNPS SN Foothill Team 2005-4-13 SNFN 0078 b Butte City of Chico, Doe Mill Meadowfoam Preserve, located at the east end of Warfield street, east side of the creek diversion between the diversion and the creek, ~85 m south of the Preserve gate entrance. 82 Comment
  UCD80103  Microseris acuminata CNPS SN Foothill Team 2005-4-15 SNFN 0081 b Butte City of Chico, Doe Mill Meadowfoam Preserve, ~50 m from the western boundary and ~70 m from the northern boundary. 85 Comment
  CHSC1290  Microsteris gracilis P. Delaplane 1965-5-11 62 Butte 3-4 mi W of Paradise on Skyway. Ca. 1/2 way to Paradise from Chico. 243 Comment
  CHSC19946  Microsteris gracilis M. S. Taylor 1975-3-10 409 Butte On bluffs overlooking Butte Creek and Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC45354  Microsteris gracilis Vernon Oswald 1987-4-16 2332 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. 74 Comment
  CHSC92560  Microsteris gracilis L. P. Janeway 2005-3-1 8337 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715721  Microsteris gracilis subsp. gracilis L. P. Janeway 2005-3-1 8337 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  CHSC118886  Mimulus glaucescens Christopher T. Ivey 2017-5-27 385 Butte Centerville Road, about 1 km NE of Honeyrun Bridge, on W side of road, growing in road cut. 128 Comment
  HSC86826  Mimulus glaucescens S. Villard 1974-4-26 22 Butte Around Covered Bridge on Humbug Rd., ca. 6 mi. E of Chico Comment
  POM252824  Mimulus glaucescens A. A. Heller 1938-5-4 s.n. Butte Near Covered Bridge over Butte Creek, east of Chico 107 Comment
  RSA32857  Mimulus glaucescens A. A. Heller 1938-5-4 s.n. Butte Near Covered Bridge over Butte Creek Comment
  CHSC118883  Mimulus guttatus Christopher T. Ivey 2017-5-27 387 Butte Centerville Road, about 1.5 km NE of Honeyrun bridge, large wet meadow N side of road, growing among Typha latifolia, Rubus cf. armeniacus. 119 Comment
  JEPS4705  Mimulus microphyllus A. A. Heller 1938-5-4 15060 Butte e Chico (near covered bridge over creek); Butte Creek 106 Comment
  UC445157  Mimulus microphyllus Mrs. R. M. Austin Apr. 1899 85 Butte plains e Chico Comment
  CHSC64018  Mimulus moschatus B. Castro 1987-8-29 213 Butte At s edge of Butte Ck ca 2.1 mi S of Skyway and ca 1/4 mile E of Hwy 99 bridge. 60 Comment
  UCD122795  Mimulus moschatus B. Castro 1987-8-29 213 Butte at S edge of Butte Cl ca. 2.1 mi S of Skyway and ca. 1/4 mile E of Hwy 99 bridge. 60 Comment
  UC1509660  Mimulus nasutus M. S. Taylor and K. Tharp 1983-3-12 5442 Butte ca. 3 mi sse Chico (along small rd. off Stillson Canyon Rd. (leading to Mannion property)); Chico quad. 152 Comment
  JEPS4246  Mimulus tricolor A. A. Heller 1914-4-24 11314 Butte 7 mi from Chico (Chico-Oroville road) Comment
  CHSC39770  Minuartia californica Terrie Wilson 1978-10-4 14 Butte N side of Hwy 32, ca. 1.4 mi e jct. Hwy 99 and 32v at Chico. 76 Comment
  CHSC92573  Minuartia californica L. P. Janeway 2005-3-1 8341 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC67511  Minuartia californica J. P. Smith 1973-3-22 5928 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  RSA20869  Minuartia californica C. B. Wolf 1937-3-29 8330 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd 58 Comment
  RSA715728  Minuartia californica L. P. Janeway 2005-3-1 8341 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  CHSC43938  Modiola caroliniana Vernon Oswald 1988-4-5 3268 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) located in southeast Chico. In the southeast corner of the greenhouse complex. 70 Comment
  JEPS29837  Mollugo verticillata Rimo Bacigalupi and L. R. Heckard 1962-6-1 8581 Butte road to Centerville (about 200 ft e of its inception at the Paradise Road Junction) 60 Comment
  UCD99630  Mollugo verticillata Rimo Bacigalupi; L. R. Heckard 1962-6-1 8581 Butte road to Centerville, about 200 feet east of its inception at the Paradise Road junction. 60 Comment
  UCSB63980  Monardella douglasii Jokerst, James; Castro, Barbara 1992-5-19 Butte Powerline site in the unnamed canyon N of Nugen Canyon; on the S side of Neal Rd; near the Butte County Sanitary Landfill: T21N R2E NEW NE'/i Sect. 14; Valley and Foothill Grassland within Blue Oak Woodland; Cascade Range Foothills 83 Comment
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Jul 19 2018
  RSA621750  Monardella douglasii subsp. venosa B. Castro 1996-5-18 659 Butte 5.5 airmiles SE of the town of Paradise, in bottom of unnamed canyon just S of Neal Road, 60 ft N of creek channel directly under transmission lines. 85 Comment
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Jul 19 2018
  CAS-BOT-BC220308  Monardella venosa B. Castro; J. D. Jokerst 1992-5-19 457 Butte In bottom of unnamed canyon SE of Neal Road 79 Comment
  CAS-BOT-BC220309  Monardella venosa L. P. Janeway; B. Castro 1992-5-16 4187 Butte Small canyon between Hamlin Canyon and the unnamed canyon on the southeast side of Neal Road opposite the entrance to the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99 73 Comment
  CHSC110443  Monardella venosa B. Castro 2007-5-19 1623 Butte Sacramento Valley. Ca 5.5 air mi SE of town of Paradise, in bottom of unnamed canyon just S of Neal Road, ca 70 ft N of creek channel directly under transmission lines. 85 Comment
  CHSC59107  Monardella venosa L. P. Janeway; B. Castro 1992-5-9 4162 Butte Unnamed canyon on southeast side of Neal Road up canyon ca 1/2 mi from the Butte County Land Fill; ca 1 3/4 mi northeast of Hwy 99 and directly under the high voltage power transmission lines. 88 Comment
  CHSC59108  Monardella venosa L. P. Janeway; B. Castro 1992-5-16 4187 Butte Small canyon between Hamlin Canyon and the unnamed canyon on the southeast side of Neal Road opposite the entrance to the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99. 73 Comment
  CHSC60100  Monardella venosa B. Castro; J. D. Jokerst 1992-5-19 457 Butte In bottom of canyon SE of Neal Road; ca 200 ft NW of intermittent creek. 79 Comment
  CHSC60101  Monardella venosa B. Castro; L. P. Janeway 1992-5-10 456 Butte In bottom of canyon SE of Neal Road; ca 100 ft NW of intermittent creek. 85 Comment
  CHSC67804  Monardella venosa James D. Jokerst; Barbara Castro 1992-5-19 3355 Butte Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. Cascade Range Foothills. 76 Comment
  CHSC67805  Monardella venosa James D. Jokerst; B. Castro 1992-5-19 3356 Butte Cascade Range Foothills. Powerline site in the unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. 83 Comment
  HSC93643  Monardella venosa B. Castro 1996-5-18 659 Butte 5.5 mi. SE of Paradise, in bottom of unnamed canyon just S of Neal Rd., 60 ft. N of creek channel directly under transmission lines 85 Comment
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Dec 20 2012
  HSC95623  Monardella venosa James D. Jokerst, B. Castro 1992-5-19 3356 Butte Powerline site in unnamed canyon N of Nugen Canyon, S side of Neal Rd. near Butte Co. Sanitary Landfill, Cascade Range Foothills 84 Comment
  UC1606732  Monardella venosa B. Castro, J. D. Jokerst 1992-5-19 457 Butte unnamed canyon se Neal Road (ca. 200 ft nw of intermittent creek); Hamlin Canyon quad. 79 Comment
  RSA755352  Montia fontana L. P. Janeway 2008-3-18 9237 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  UCD80681  Montia fontana CNPS SN Foothill Team 2005-4-15 SNFN 0082 c Butte City of Chico, Doe Mill Meadowfoam Preserve, near the NE corner of the reserve (ca. 20 m from the east fence and ca. 40 m from the north fence). 81 Comment
  CHSC100972  Montia fontana subsp. amporitana L. P. Janeway 2008-3-18 9237 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC27071  Montia fontana subsp. chondrosperma James T. Nicol 1978-3-15 12 Butte Ca. 30 m se of junct. of Honey Run-Humbug Rds. 10.2 km ese of Chico. 120 Comment
  CHSC62157  Montia fontana subsp. chondrosperma B. Castro; L. P. Janeway, M. Meyer, P. Kelly 1987-3-26 51 Butte Ca 1 mi E of Chico on the S side of Humboldt Rd, near jcn with Bruce Rd, in an area with vernal pools and swales. 76 Comment
  CHSC1377  Montia parvifolia V. Holt 1935-5-1 Butte Butte Creek near Covered Bridge. 91 Comment
  CHSC41526  Muhlenbergia rigens R. L. Ondricek-Fallscheer 1982-10-24 158 Butte Below seepage area, on rim of cliff, se side of tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 152 Comment
  CHSC52774  Myosurus minimus Kelly Beane 1981-4-16 3 Butte Ca. 0.5 mi. e of Hwy 99 and The Skyway intersect., 2 mi. e of Chico. Along stream bed. 70 Comment
  CHSC65462  Myosurus minimus Vernon Oswald 1988-3-16 3257 Butte Butte Creek Canyon Ecological Reserve on the south side of Butte Creek e of Hwy 99 near the control valves of Durham Mutual Ditch. In a track. 67 Comment
  CHSC27863  Nassella cernua A. K. Bos 1978-4-24 20 Butte Ca. 10 ft s of Rd, 2.6 mi e on Humbug Rd, 6.6 mi se from Chico. Comment
  CHSC41137  Nassella pulchra R. L. Ondricek-Fallscheer 1983-5-7 165 Butte Ca. 200 yds s of house on plateau at tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 170 Comment
  CAS-BOT-BC230299  Navarretia heterandra Peter H. Raven 1953-5-9 5423 Butte 7 miles SE of Chico on Oroville Road Comment
  CHSC43942  Navarretia heterandra Vernon Oswald 1988-5-18 3316 Butte East side of Bruce Rd. ca. 0.8 mi n of the Skyway in southeast Chico. 79 Comment
  CHSC60128  Navarretia heterandra B. Castro; L. P. Janeway 1992-5-15 453 Butte In bottom of canyon SE of Neal Road, ca 100 ft NW of intermittent creek. 73 Comment
  UCD80643  Navarretia intertexta subsp. intertexta CNPS SN Foothill Team 2005-4-12 SNFN 0077 g Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge over a diversion canal). 87 Comment
  CHSC52107  Navarretia leucocephala Kimberly J. Weir 1976-4-15 4 Butte In vernal pool, ca. 1 mi s of Big Chico Creek and 1.5 mi ene of Chico, 20 ft n of Humboldt Road. 60 Comment
  CHSC81286  Navarretia leucocephala J. Trizzino 2001-4-25 59 Butte Oro-Chico Highway, 0.25 mi west of Neal Road. Wet ditch on north side of road. 54 Comment
  UCD80642  Navarretia leucocephala subsp. leucocephala CNPS SN Foothill Team 2005-5-3 SNFN 0198 d Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the preserve gate, and ca. 75 m from the east fence. 85 Comment
  CHSC60129  Navarretia nigelliformis B. Castro; L. P. Janeway 1992-5-9 450 Butte In bottom of unnamed canyon SE of Neal Road. 70 Comment
  CHSC43943  Navarretia nigelliformis subsp. nigelliformis Vernon Oswald 1988-5-18 3315 Butte East side of Bruce Rd. ca. 0.8 mi n of the Skyway in southeast Chico. 79 Comment
  CHSC67262  Navarretia nigelliformis subsp. nigelliformis James D. Jokerst; Barbara Castro 1992-5-19 3352 Butte Cascade Range Foothills. Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. 76 Comment
  CHSC36711  Navarretia pubescens D. H. Ikeda 1980-5-10 356 Butte 0.7 mi e of intersection of Hwy. 99 and Neal Rd. on s side of road. Comment
  CHSC59119  Navarretia pubescens L. P. Janeway; B. Castro 1992-5-9 4166 Butte Unnamed canyon on southeast side of Neal Road opposite the Butte County Land Fill; ca 1 1/4 mi northeast of Hwy 99. 79 Comment
  CHSC36705  Navarretia tagetina D. H. Ikeda 1980-5-10 358 Butte 0.7 mi e of intersection of Hwy. 99 and Neal Rd. on s side of road. Comment
  CHSC81287  Navarretia tagetina J. Trizzino 2001-4-25 57 Butte Oro-Chico Highway, 0.5 mi east of Mesa Drive, south side of road. 53 Comment
  SEINET3860241  Navarretia tagetina Leigh A. Johnson 2004-5-15 04 -064 Butte Eastbound from Chico on Skyway Drive, in 10 meters between large pullover area and fence, 4.2 miles west of Skyway crossroad; 5.3 miles west of Neal jct.; 0 209 Comment
  UC856822  Navarretia tagetina A. A. Heller 1915-5-16 11872 Butte 3 mi from Chico (Chico-Centerville road) Comment
  UCD80639  Navarretia tagetina CNPS SN Foothill Team 2005-5-3 SNFN 0198 e Butte City of Chico, Doe Mill Meadowfoam Preserve, ca. 200 m at 240 degrees from the preserve gate, and ca. 75 m from the east fence. 85 Comment
  JEPS73705  Navarretia viscidula L. R. Heckard 1968-5-30 1927 Butte e Chico; Santes Ranch, Stilson Canyon Comment
  CHSC24148  Nemophila heterophylla B. Bunge 1976-4-12 11 Butte Ca. 25 yd. n of Butte Creek and 25 yd. w of Covered Bridge; ca. 8 mi. e of Chico. 106 Comment
  CHSC84915  Nemophila heterophylla Joseph Silveira 1982-4-17 14 Butte 30 m south of Butte Creek and 25 m southeast of Covered Bridge, 10.2 km east-southeast of Chico. 100 Comment
  CHSC90237  Nemophila heterophylla Thomas M. Scott 1989-4-19 11 Butte Ca. .2 km e of Covered Bridge (over Butte Creek), 10.2 km ese of Chico. 120 Comment
  CHSC4019  Nemophila menziesii E. P. Parreno 1967-4-12 Butte Honey Run Road ca. 7 yards after the bridge beside the road. Comment
  CHSC4086  Nemophila menziesii Kathy Sommarstrom 1967-4-12 21 Butte Found on left hand side of Honey Run Rd on South end of bridge next to covered bridge. 76 Comment
  CHSC24718  Nemophila pedunculata C. E. Stopher 1976-4-3 16 Butte 9.7 km se of Chico via Honey Run road. 100 m sw of covered bridge on s side of canyon. 122 Comment
  CHSC28965  Nemophila pedunculata J. D. Jokerst; M. S. Taylor 1980-2-23 449 Butte Edge of flat ridge top ca 1/4 mi NW of Neal Rd. 198 Comment
  UC880940  Nemophila pedunculata A. A. Heller 1915-4-20 11852 Butte Chico-Centerville road 3 mi from Chico; <near> Chico Comment
  CHSC2840  Odontostomum hartwegii David Prall 1965-4-25 27 Butte N side of Humbug Rd. 0.3 miles west of junction with Honeyrun Rd. (covered bridge). 152 Comment
  CHSC29104  Odontostomum hartwegii M. S. Taylor 1980-4-27 2568 Butte On n side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 121 Comment
  CHSC42195  Odontostomum hartwegii J. P. Arts 1986-4-18 16 Butte Ca. 1 mile s of the covered bridge on Humbug Rd., ca. 5 miles ne of Chico on the n side of the road. NW/4 Oroville. 91 Comment
  CHSC1167  Orobanche fasciculata V. Holt 1935-5-26 Butte Humboldt Road. Comment
  RSA20870  Orthocarpus erianthus Carl B. Wolf 1937-3-29 8331 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd. 58 Comment
  RSA20876  Orthocarpus erianthus Carl B. Wolf 1937-3-29 8337 Butte Sierra Nevada foothills, 7.8 miles below Paradise on Chico Road. 152 Comment
  RSA715718  Orthocarpus erianthus L. P. Janeway 2005-3-1 8332 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  JEPS43151  Oxalis corniculata Mrs. R. M. Austin May 1896 204 Butte e Chico (Butte Creek) Comment
  CHSC3541  Oxalis pes-caprae John Francis 1966-3-19 69 Butte On hillside S. of covered bridge, Honey Run. Comment
  CHSC4359  Panicum capillare R. L. Smith 1966-5-28 7 Butte US Plant Introduction Station 5 mi sw of Chico. Comment
  UC398655  Parvisedum pumilum A. A. Heller 1926-4-19 13923 Butte about 7 mi from Chico (in the Sacramento Valley, along the Chico-Oroville Road); Chico-Oroville Road Comment
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1
  UC830990  Parvisedum pumilum A. A. Heller 1914-4-27 11329 Butte along Chico-Oroville Road on the lava plains 6 mi from Chico; Chico-Oroville Road Comment
  CHSC28139  Pectocarya pusilla Robert A. Schlising 1979-4-4 3352 Butte Northeast of Chico, along Skyway (hwy to Paradise). 243 Comment
  CHSC80740  Pellaea mucronata Ruby Gist 1935-5-4 Butte Humboldt Road. Comment
  UCD80691  Pellaea mucronata subsp. mucronata CNPS SN Foothill Team 2006-5-25 SNNR 0959 Butte Horning Ranch, private. This stand lies between 2 previous RA stands and wraps around the southern tip of projecting finger into canyon. 185 Comment
  NY571127  Penstemon azureus var. angustissimus A. A. Heller 1915-4-20 11854 Butte Chico-Centerville road, 3 miles from Chico at the lower limit of the digger pine belt Comment
  CHSC3360  Penstemon heterophyllus var. purdyi M. Gregg 1966-5-7 162 Butte 3 miles north east of the Skyway on Humbug Rd. Comment
  UC139643  Penstemon heterophyllus var. purdyi Mrs. R. M. Austin Apr. 1896 189 Butte Plains e Chico; Plains e of Chico Comment
  UC887074  Penstemon heterophyllus var. purdyi A. A. Heller 1915-4-20 11854 Butte Chico-Centerville road 3 mi from Chico; 3 mi from Chico Comment
  CHSC1873  Penstemon neotericus R. M. Staley 1952-7-4 Butte Butte Creek. Comment
  CAS-BOT-BC239447  Penstemon rydbergii var. oreocharis Frank W. Peirson 1926-6-21 6772 Butte Butte Meadow, Humboldt Road Comment
  RSA79777  Penstemon rydbergii var. oreocharis F. W. Peirson 1926-6-21 6772 Butte Butte Meadow, Humboldt Road. Comment
  CHSC28896  Pentagramma triangularis M. S. Taylor 1980-3-1 2339 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC3295  Pentagramma triangularis M. L. Hillier 1966-3-7 Butte 100 to 300 yds s of covered bridge over Butte Creek. Comment
  CHSC39239  Pentagramma triangularis M. S. Taylor; K. Tharp 1983-3-12 5238 Butte Off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC79635  Pentagramma triangularis Simona Altman 1999-3-9 41 Butte At intersection of Skyway and Canyon Rim Pl. 76 Comment
  CAS-BOT-BC77089  Pentagramma triangularis subsp. triangularis R. A. Emmrich 1975-4-24 46 Butte Ca. 1/2 mi. E of Butte Creek and 1/4 mi. SE of Covered Bridge, 6 mi. ESE of Chico. 128 Comment
  CHSC90138  Pentagramma triangularis subsp. triangularis Jack Judkins 1983-4-16 9 Butte 6 mi east-southeast of Chico, 100 yds south of Butte Creek, 200 yds southeast of the Covered Bridge. 274 Comment
  CHSC90140  Pentagramma triangularis subsp. triangularis Roberta A. Boer 1980-4-25 18 Butte About 1/4 mi north of Humboldt Road and 1.5 mi east of the junction of Hwy 32 and Hwy 99, about 2.0 mi east of Chico. 131 Comment
  CHSC45383  Persicaria punctata Vernon Oswald 1987-7-6 3096 Butte Butte Creek Reserve on the s side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  CHSC96551  Petrorhagia dubia L. P. Janeway 2006-4-30 8563 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725056  Petrorhagia dubia L. P. Janeway 2006-4-30 8563 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CHSC13885  Phacelia egena M. A. Davis 1969-4-10 9 Butte Comment
  CHSC52403  Phacelia egena R. Smallwood 1969-4-25 19 Butte Butte Cr Cyn; Honey Run Rd at the Covered Bridge; 15 yds NW of old bridge. 137 Comment
  CHSC71118  Phacelia egena Jan Monelo 1989-4-11 9 Butte Ca 75 yds w of Covered Bridge on w side of Honey Run Rd, ca 7 mi e of Chico. 121 Comment
  CHSC97006  Phalaris brachystachys B. Castro; R. A. Schlising 2005-5-29 1478 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  CHSC66974  Phalaris paradoxa James D. Jokerst; Barbara Castro 1992-5-19 3354 Butte Cascade Range Foothills. Unnamed canyon N of Nugen Canyon on the S side of Neal Rd. near the Butte County Sanitary Landfill. 76 Comment
  CAS-BOT-BC77369  Philadelphus lewisii C. C., Mrs. Bruce 1897-5-1 1785 Butte Little Chico Creek Comment
  CAS-BOT-BC77375  Philadelphus lewisii Mrs. J. H. Morrison 1932-6-12 s.n. Butte Mountains above Durham Comment
  LA209889  Phoradendron leucarpum subsp. tomentosum A. A. Heller; 1914-1-28 11157 Butte near Hog Springs, 6 mi E of Chico Comment
  CHSC42333  Phyllostachys bambusoides B. C. Willingham 1968-6-3 Butte Plant Introduction Station, Chico. Purchased in Nagasaki, Japan. Comment
  CHSC4299  Phyllostachys bambusoides R. L. Smith 1966-5-25 Butte US Plant Introduction Station 5 mi sw of Chico. Comment
  CHSC59478  Phyllostachys bambusoides Bryan C. Willingham 1968-12-12 Butte Purchased in Nagasaki, Japan. Introduced to the Chico (California) Plant Introduction Station. Comment
  CHSC59523  Phyllostachys bambusoides Bryan C. Willingham 1968-6-3 Butte Purchased in Nagasaki, Japan. Introduced to the Chico (California) Plant Introduction Station. Comment
  CDA3321  Phytolacca americana L. Ahart 2004-9-28 11405 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. Comment
  CHSC89438  Phytolacca americana Lowell Ahart 2004-9-28 11405 Butte Fallow field, on the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico. 57 Comment
  HSC97070  Phytolacca americana L. Ahart 2004-9-28 11405 Butte S side of the Oroville Chico Hwy., W of Butte Creek, 1 1/8 mi. SE of the Midway, 2 1/8 mi. NE of Durham, 3.5 mi. SE of Chico 58 Comment
  JEPS106185  Phytolacca americana Lowell Ahart 2004-9-28 11405 Butte Fallow field, on the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles (air) northeast of Durham, about 3 1/2 miles (air) southeast of Chico 57 Comment
  RSA702777  Phytolacca americana L. Ahart 2004-9-28 11405 Butte On the south side of the Oroville Chico Highway, west of Butte Creek, about 1 1/8 miles southeast of the Midway, about 2 1/8 miles northeast of Durham, about 3 1/2 miles southeast of Chico. 58 Comment
  HSC46096  Pinus ponderosa J. P. Smith 1973-3-22 5931 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  CHSC43585  Pistacia atlantica Vernon Oswald 1987-5-6 2373 Butte Butte Creek Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 68 Comment
  CHSC43586  Pistacia atlantica Vernon Oswald 1987-4-29 2358 Butte Chico Tree improvement Center (former USDA Plant Introduction Station ) in se Chico. 68 Comment
  CHSC3336  Pistacia mexicana Robert L. Smith 1966-3-1 20 Butte U.S. Plant Introduction Station 5 miles S.E. of Chico. Comment
  CHSC43590  Pistacia terebinthus Vernon Oswald 1987-4-29 2351 Butte Chico Tree Improvement Center (former USDA Plant Introdution Station) in se Chico 68 Comment
  CHSC43592  Pistacia vera Vernon Oswald 1987-4-29 2357 Butte Chico Tree improvement Center (former USDA Plant Introduction Station ) in se Chico. 68 Comment
  CAS-BOT-BC169563  Plagiobothrys M. S. Taylor 1974-3-3 68 Butte Burton's Mesa, ca 3 mi E of Chico on the Skyway to Paradise 60 Comment
  CHSC23463  Plagiobothrys J. R. Lee 1974-4-22 3 Butte At edge of pond 10 yds n of Skyway roadside and 1.6 mi e of Chico city limits. 76 Comment
  CHSC28151  Plagiobothrys austiniae Robert A. Schlising 1979-4-4 3351 Butte Northeast of Chico, along dirt road (formerly named Bruce Road) north of Skyway. In ditch. 76 Comment
  CHSC34718  Plagiobothrys austiniae M. S. Taylor 1980-3-1 2338 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC7059  Plagiobothrys austiniae Lynn R. Thomas 1969-3-3 3 Butte S edge of Humboldt Rd., 1.4 mi e of junction with Stilson Canyon and Bruce Rds., or 3.3 mi e of US 99 freeway underpass, Chico. 152 Comment
  CHSC92567  Plagiobothrys austiniae L. P. Janeway 2005-3-10 8355 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA20871  Plagiobothrys austiniae C. B. Wolf 1937-3-29 8332 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd 58 Comment
  UCD80165  Plagiobothrys austiniae CNPS SN Foothill Team 2005-4-15 SNFN 0082 a Butte City of Chico, Doe Mill Meadowfoam Preserve, near the NE corner of the reserve (~20 m from the east fence and ~40 m from the north fence. 81 Comment
  UCD80159  Plagiobothrys fulvus var. campestris CNPS SN Foothill Team 2005-4-13 SNFN 0079 a Butte City of Chico, Doe Mill Meadowfoam Preserve, about 30 m from the western boundary and 60 m from the southern boundary. 85 Comment
  CHSC28982  Plagiobothrys glyptocarpus R. A. Schlising 1980-3-23 3519 Butte E of Chico and SW of Paradise. 289 Comment
  UC1303133  Plagiobothrys greenei A. A. Heller 1926-3-22 13911 Butte 4 mi e Chico Comment
  CHSC28985  Plagiobothrys nothofulvus R. A. Schlising 1980-3-23 3523 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC39213  Plagiobothrys nothofulvus M. S. Taylor; K. Tarp 1983-3-12 5239 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC90101  Plagiobothrys nothofulvus Rebecca L. Hill 1990-3-21 1 Butte Ca. 20 yds se of jct of Oroville Chico Highway and Mesa Road, on the e side of Oroville Chico Hwy, ca. 5.5 mi of Chico. 47 Comment
  CHSC28983  Plagiobothrys scriptus R. A. Schlising 1980-3-23 3520 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC35055  Plagiobothrys scriptus R. A. Schlising 1981-3-30 4011 Butte E of Chico, on old Bruce Road, 0.5 mi N of Skyway; roadside. 79 Comment
  CHSC35056  Plagiobothrys scriptus R. A. Schlising 1981-3-16 4002 Butte About 3 miles E of Chico along Humboldt Road, paralleling Hwy 32. At roadside. 114 Comment
  CHSC35058  Plagiobothrys scriptus R. Schlising; R. Banchero 1981-3-7 3996 Butte S of Chico, 0.2 mi N of jct with Neal Road, along Chico/Oroville Hwy. 54 Comment
  UC179566  Plagiobothrys stipitatus A. A. Heller 1914-4-24 11317 Butte 5 mi from Chico (Chico-Oroville road) Comment
  CHSC52004  Plagiobothrys stipitatus var. micranthus R. A. Schlising 1979-4-9 3357 Butte E of Chico, at roadside of dirt road formerly named Bruce Road, just north of Skyway. 76 Comment
  UCD80162  Plagiobothrys stipitatus var. micranthus CNPS SN Foothill Team 2005-4-12 SNFN 0077 c Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge across a diversion canal). 87 Comment
  CHSC19938  Plagiobothrys tenellus M. S. Taylor 1975-3-10 412 Butte Ca. 1/4 mi w of Covered Bridge, on s side of Butte Creek, on the grassy bluffs above the creek. 243 Comment
  CHSC28590  Plagiobothrys tenellus M. S. Taylor 1974-3-3 68 Butte On Burton's Mesa, ca. 3 mi e of Chico on the Skyway to Paradise. 60 Comment
  CHSC28979  Plagiobothrys tenellus R. A. Schlising 1980-3-17 3516 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 Comment
  CHSC31263  Plagiobothrys tenellus R. A. Schlising 1980-3-24 3525 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  RSA32724  Plagiobothrys tenellus A. A. Heller 1916-4-13 12318 Butte Stilson Canyon east of Chico Comment
  UC725415  Plagiobothrys tenellus A. A. Heller 1916-4-13 12318 Butte e Chico; Stilson Canyon Comment
  CHSC28984  Plantago bigelovii R. A. Schlising 1980-3-23 3522 Butte E of Chico and SW of Paradise along Skyway. 289 Comment
  CHSC30805  Plantago bigelovii M. S. Taylor 1980-3-1 2333 Butte Ca. 10 ft s of Neal Rd,, ca. 1/4 mi e of the city dump, ca. 1 1/4 mi e of Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC37404  Plantago elongata A. R. Ratcliff; R. A. Schlising 1980-4-6 3547 Butte Jct Chico-Oroville Road, about 5 mi s of Chico. 53 Comment
  CHSC24157  Plantago erecta B. Bunge 1976-4-22 20 Butte Ca 100 yds s of Skyway, ca 8 mi ese of Chico. 259 Comment
  CHSC24895  Plantago erecta T. A. Barrett 1976-4-15 20 Butte 2.7 km e of Chico off the Skyway. 30 Comment
  CHSC24896  Plantago erecta G. K. Mead 1976-4-23 14 Butte Ca. 150 yds S of Butte Creek and 2.0 mi W of the Covered Bridge. 6.4 mi ESE of Chico. 121 Comment
  CHSC31362  Plantago erecta W. F. Babb 1980-4-21 6 Butte On s side of Neal Rd. ca. 1.5 mi e of junction with Hwy 99E ca. 3 mi s of Chico. Comment
  CHSC34412  Plantago erecta R. M. Winchell 1980-4-17 1 Butte Covered Bridge along Butte Creek. Comment
  CHSC4087  Plantago erecta Kath Sommarstrom 1967-4-1 14 Butte Found on bank to right side of Humbug Road, 2 mi west of covered bridge. 76 Comment
  CHSC52098  Plantago erecta R. J. Goedl 1979-4-16 19 Butte Ca. 3.5 mi e of Highway 99, 20 ft s of Skyway, e of Chico. 213 Comment
  CHSC52101  Plantago erecta William Nielson 1984-3-28 16 Butte 5 m s of Skyway, ca. 2 km w of jct with Hwy 99. 95 Comment
  CHSC92533  Plantago erecta L. P. Janeway 2005-3-10 8343 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715920  Plantago erecta L. P. Janeway 2005-3-10 8343 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  UC1506095  Plantago erecta Robert T. Clausen 1963-3-20 63009 Butte s of Chico (low ridge e of Mutual Ditch, Sacramento River drainiage); Sacramento Valley, Sacramento River 57 Comment
  CAS-BOT-BC93160  Platanus racemosa John Thomas Howell 1975-6-15 51067 Butte Butte Creek near Chico. 60 Comment
  CHSC3332  Platanus racemosa Robert L. Smith 1966-5-23 64 Butte U. S. Plant Introduction Station 5 miles SE of Chico. Comment
  CHSC39938  Platanus racemosa M. S. Taylor; V. Oswald 1984-4-4 5376 Butte Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. 182 Comment
  CHSC45344  Platanus racemosa Vernon Oswald 1987-4-20 2335 Butte Butte Creek Reserve on the s side of the creek ne of the Skyway. Twig from a large tree growing on the edge of a dredger pond. 91 Comment
  UC118461  Platystemon californicus Mrs. R. M. Austin Apr 1896 170 Butte plains e Chico; plains e of Chico Comment
  CHSC30690  Plectritis brachystemon M. S. Taylor 1980-3-1 2335 Butte Among rocky outcrops on n-facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC39238  Plectritis brachystemon M. S. Taylor; K. Tharp 1983-3-12 5236 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC19939  Plectritis ciliosa M. S. Taylor 1975-3-10 415 Butte On bluffs overlooking Butte Creek, ca. 1/4 mi sw of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC33761  Plectritis ciliosa R. A. Schlising 1980-4-3 3543 Butte E of Chico and SW of Paradise along Skyway. Comment
  CHSC29232  Plectritis congesta M. S. Taylor 1980-4-1 2428 Butte On bluffs above Covered Bridge, ca. 100 ft s of Butte Creek, ca. 6 mi e of Chico 182 Comment
  CHSC3955  Plectritis macrocera J. Senter 1967-3-21 28 Butte Located 150 yds. behind covered bridge on S.E. slope Honeyrun Rd. Chico. 76 Comment
  POM197072  Plectritis macrocera subsp. grayi H. F. Copeland 1928-4-3 63 Butte Canyon of Butte Creek. Comment
  CHSC56833  Poa bulbosa J. D. Jokerst 1980-3-26 Butte East side of Chico; 100 m northeast of the junction of Bruce Road and Skyway. Comment
  CHSC89036  Poa bulbosa A. Peterson 2003-3-25 10 Butte East of Chico, Humboldt Rd., along road edge. 152 Comment
  GH360969  Poa secunda G. P. Van Eseltine 1918-4-25 1239 Unknown Four miles southeast of Chico, near railroad bridge over Butte Creek Comment
  CHSC100898  Poa secunda subsp. secunda R. A. Schlising; Alice Ratcliff 1980-4-6 3549 Butte South of Chico, at the junction of Oroville-Chico Road and Neal Road. 53 Comment
  CHSC32606  Poa secunda subsp. secunda J. D. Jokerst; R. A. Schlising 1981-3-23 1266 Butte Ca 110 m S of Neil Rd. Comment
  HSC12182  Poa secunda subsp. secunda P. Van? 1918-4-29 2059 Butte Butte Creek about 4 mi. SE of Chico. Comment
  HSC39887  Poa secunda subsp. secunda J. P. Smith 1973-3-22 5932 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  HSC92567  Poa secunda subsp. secunda J. P. Smith, J. O. Sawyer 1973-4-14 6056 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  UC926033  Poa secunda subsp. secunda G. P. Van Eseltine 1918-4-25 1239 Butte 4 mi se Chico (near railroad bridge over Butte Creek) Comment
  HSC41104  Poa tenerrima J. P. Smith, J. O. Sawyer 1973-4-14 6055 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  UCD92088  Poa tenerrima Robert E. Preston 2002-3-21 1778 Butte Chico, NE of intersection of Skyway and Bruce Rd. 70 Comment
  CHSC12731  Pogogyne douglasii R. Howlett 1974-4-25 1 Butte On Bruce rd. Ca. 1 mi off of Stillson Canyon Rd. 70 Comment
  UCD80398  Pogogyne zizyphoroides CNPS SN Foothill Team 2005-4-12 SNFN 0077 f Butte City of Chico, Doe Mill Meadowfoam Preserve, about 200 m SE of the end of Warfield Street (i.e. where the street crosses an old unusable bridge across a diversion canal). 87 Comment
  CHSC23447  Polanisia dodecandra subsp. trachysperma K. R. Stern 1974-7-23 Butte Neal Road, 0.1 mi e of junction with Hwy 99 e, ca 6 mi se of Chico. Comment
  CHSC30772  Polanisia dodecandra subsp. trachysperma M. S. Taylor 1980-8-15 3255 Butte S side of Neal Rd, ca. 0.1 mi e of its jct with Hwy 99, at vernal creek culvert, ca. 7 mi s of Chico. 60 Comment
  HSC72951  Polanisia dodecandra subsp. trachysperma M. S. Taylor 1980-8-15 3255 Butte S side of Neal Rd., 0.1 mi. E of its junction with Hwy. 99, 7 mi. S of Chico 61 Comment
  CAS-BOT-BC109131  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Along Neale grade on road from Chico to Paradise. Comment
  CAS-BOT-BC109132  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Along Neale grade on road from Chico to Paradise. Comment
  CAS-BOT-BC109137  Polygonum bidwelliae C. R. Quick 1951-6-5 51 -87 Butte 5 miles northeast of Chico, Deer Creek road. Comment
  CAS-BOT-BC109139  Polygonum bidwelliae L. P. Janeway; B. Castro 1992-5-16 4186 Butte Unnamed canyon on southeast side of Neal Road opposite the entrance to the Butte County Land Fill. 68 Comment
  CHSC28787  Polygonum bidwelliae J. D. Prouty 1979-5-23 7905232 Butte Open plateau just n of The Skyway ca. 4 mi e of Chico. 170 Comment
  CHSC51108  Polygonum bidwelliae Gerald A. Winter 1989-4-15 17 Butte Ca. 5 yds s of Humboldt road, .5 mi e of Bruce Road between the 8th and 9th telephone pole, 33 yds from the latter, e Chico. 76 Comment
  CHSC59121  Polygonum bidwelliae L. P. Janeway; B. Castro 1992-5-16 4186 Butte Unnamed canyon on southeast side of Neal Road opposite the entrance to the Butte County Land Fill; ca 1 1/4 mi northeast of Hwy 99. Bottom of slope on west side of dry creek. 68 Comment
  CHSC60131  Polygonum bidwelliae B. Castro; L. P. Janeway 1992-5-9 451 Butte On SE-facing slope of unnamed canyon SE of Neal Road, on lava benches. 73 Comment
  CHSC74694  Polygonum bidwelliae B. Castro 1998-6-13 790 E Butte Ca 5.5 air mi SE of Town of Paradise, directly opposite County Landfill, at edge of N side of unnamed canyon just S of Neal Road, under transmission lines. 128 Comment
  LA207131  Polygonum bidwelliae A. A. Heller; 1927-5-18 14391 Butte volcanic outcrops along Neale grade on road from Chico to Paradise Comment
  RSA32833  Polygonum bidwelliae A. A. Heller 1941-5-25 s.n. Butte Just back of the Rifle Range, 5 miles east of Chico, opposite golf links Comment
  RSA3842  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Along Neale grade on road from Chico to Paradise Comment
  SBBG61484  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Neale grade on rd from Chico to Paradise Comment
  SEINET3405100 Image available Polygonum bidwelliae A. A. Heller 1941-5-25 16149 Butte Just back of the Rifle Range, 5 miles E of Chico, opposite Golf Links Comment
  SEINET3405102 Image available Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte Volcanic outcrops along Neale grade on road from Chico to Paradise Comment
  UC398664  Polygonum bidwelliae A. A. Heller 1927-5-18 14391 Butte along grade on road from Chico to Paradise; Neale grade Comment
  UC726648  Polygonum bidwelliae A. A. Heller 1941-5-25 16149 Butte 5 mi e Chico (just back of rifle range, opposite golf links) Comment
  UCD80666  Polygonum bidwelliae CNPS SN Foothill Team 2005-5-2 SNFN 0195 b Butte City of Chico, Doe Mill Meadowfoam Preserve, about 85 m south of the entrance gate. 81 Comment
  GH364760  Polygonum bolanderi H. M. Hall 1914-7-20 9767 Unknown Humboldt Road 975 Comment
  CHSC28791  Polygonum californicum J. D. Prouty 1979-5-23 7905233 Butte Open plateau just n of The Skyway ca. 4 mi e of Chico. 170 Comment
  CHSC24893  Polypodium calirhiza T. F. Burnham 1976-4-19 19 Butte Ca. 20 ft s of Butte Creek and 0.4 ft w of Covered Bridge, 6.4 mi e of Chico. 115 Comment
  CHSC24894  Polypodium calirhiza R. W. Crum 1976-4-28 19 Butte 5 yds s of Butte Creek, 117 yds w of Covered Bridge, 4.35 mi ene of Skywaym 6.4 mi ese of Chico. 115 Comment
  CHSC2834  Polypodium calirhiza David Prall 1965-4-16 22 Butte NW side of Humbug road 0.3 miles east of junction with Sunhill Dr. 198 Comment
  CHSC3273  Polypodium calirhiza M. L. Hillier 1966-3-7 Butte 100 to 300 yds. S. of covered bridge over Butte Creek about 9 miles from C. S. C. on Humbug rd. Comment
  CHSC33346  Polypodium calirhiza Steve Alvarez 1980-3-24 13 Butte Ca. 4.7 km e of Chico, 2.1 km wsw of Paradise, 0.1 km s of n edge of Coon Ridge, 0.2 km n of Skyway. 270 Comment
  CHSC34682  Polypodium calirhiza M. S. Taylor 1980-4-1 2420 Butte Along s side of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge, ca. 6 mi e of Chico. 121 Comment
  CHSC3886  Polypodium calirhiza Gerry Carrauthers 1966-3-7 79 Butte Honeyrun Rd. above old Honeyrun Bridge. Ca. 5 mi. N. W. of city of Paradise. Comment
  CHSC3887  Polypodium calirhiza Gerry Carrauthers 1966-3-7 79 Butte Honeyrun Rd. above old Honeyrun Bridge. Ca. 5 mi. N. W. of city of Paradise. Comment
  CHSC90096  Polypodium calirhiza Charlie Crannell 1991-4-23 5 Butte 50 ft south of where Honey Run Road crosses Butte Creek. In gully. 103 Comment
  CHSC90136  Polypodium calirhiza Jack Judkins 1983-4-16 5 Butte 6 mi east-southeast of Chico, 200 yds south of Butte Creek, 200 yds southeast of the Covered Bridge. 274 Comment
  CHSC29000  Polystichum californicum M. S. Taylor 1980-4-1 2419 Butte Along s side of Butte Creek, ca. 1/4 mi down stream from Honey Run Covered Bridge, ca. 6 mi e of Chico. 121 Comment
  CHSC57136  Portulaca oleracea L. P. Janeway 1988-6-29 2901 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of Skyway, 2.9 mi east of the Butte Creek Bridge. 170 Comment
  CHSC65474  Potamogeton filiformis Vernon Oswald 1987-5-25 2927 Butte Butte Creek Reserve on the n side of Butte Creek ne of the Skyway. In a pond along a channel. 79 Comment
  CHSC65473  Potamogeton foliosus var. foliosus Vernon Oswald 1987-4-30 2360 Butte Butte Creek Reserve on the s side of Butte Creek, ne of the Skyway. In a dredger pond. 80 Comment
  CHSC49687  Potamogeton natans Vernon Oswald 1987-4-30 2359 Butte Butte Creek Reserve on the s side of Butte Creek, ne of the Skyway. In several ponds. 80 Comment
  CHSC8766  Potamogeton natans S. Chulasmai 1966-3-25 3 Butte Dredger Pond (3 miles south of Chico). Comment
  CHSC48857  Potentilla anglica Vernon Oswald 1987-5-25 2922 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. Along the edge of the stream. 68 Comment
  CHSC39550  Proboscidea louisianica Lowell Ahart 1983-7-10 4192 Butte On the bottom of a dry pond, in front of the large barn, near the two large barns, about 1 1/2 miles north-east of the intersection of Highway 99 and Pentz Road, about 14 1/2 miles north of Oroville. 70 Comment
  CHSC48865  Prunus avium Vernon Oswald 1987-3-30 2303 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi nw of Butte Creek Bridge. On the edge of a pond. 65 Comment
  CHSC48866  Prunus avium Vernon Oswald 1987-5-6 2372 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi nw of Butte Creek Bridge. On the edge of a pond. 65 Comment
  CDA38804  Prunus dulcis L. P. Janeway 2012-3-6 10792 Butte Sacramento Valley; Southern edge of Chico; fence-line along west side of Hwy 99 just south of Estates Drive. Comment
  CHSC110119  Prunus dulcis L. P. Janeway 2012-3-6 10792 Butte Sacramento Valley. Southern edge of Chico; fenceline along west side of Hwy 99 just south of Estates Drive. 65 Comment
  CHSC48868  Prunus mahaleb Vernon Oswald 1987-3-30 2301 Butte Butte Creek Reserve between Butte Creek and the Durham Mutual Ditch ne of Hwy 99. 68 Comment
  POM89316  Prunus subcordata C. C. Bruce 1897-05 1813 Butte Butte Creek. Comment
  CAS-BOT-BC151219  Prunus virginiana var. demissa A. A. Heller 1916-4-13 12320 Butte Stilson Canyon east of Chico Comment
  CAS-BOT-BC151220  Prunus virginiana var. demissa A. A. Heller 1916-4-13 12320 Butte Stilson Canyon east of Chico Comment
  CHSC1586  Prunus virginiana var. demissa M. Davidson 1929-2-24 Butte Butte Creek. Comment
  CHSC48869  Prunus virginiana var. demissa Vernon Oswald 1987-4-20 2336 Butte Butte Creek Reserve on the s side of the creek ne of the Skyway. On slope bordering the s edge of the Reserve. 91 Comment
  GH346720  Prunus virginiana var. demissa A. A. Heller 1916-4-13 12320 Unknown Stilson canon east of Chico Comment
  LA208651  Prunus virginiana var. demissa A. A. Heller; 1916-4-13 12320 Butte Stilson Canon E of Chico Comment
  UC860392  Prunus virginiana var. demissa A. A. Heller 1916-4-13 12320 Butte Stilson Canyon e of Chico; Stilson Canyon Comment
  CHSC28977  Pseudobahia heermannii R. A. Schlising 1980-3-17 3515 Butte E of Chico and SW of Paradise, along Skyway; on cliff edges above Butte Creek. 213 Comment
  CHSC30416  Pseudobahia heermannii R. Banchero 1980-3-19 51 B Butte Ca. 5.5 mi e of Chico on Skyway. On w edge of plateau. 243 Comment
  CHSC58676  Pseudobahia heermannii M. Bailey 1991-4-23 728 Butte Ca 750 feet south of the Covered Bridge which is ca 8 mi ne of Chico on Humbug Road. Comment
  CHSC60656  Pseudobahia heermannii Vernon H. Oswald; Jim Snowden 1993-3-18 5233 Butte Near the stream draining Nugen Canyon, on the SE side of Neal Rd., about 0.25 mi. southeast of 'The Narrows. 109 Comment
  CHSC82272  Pseudobahia heermannii R. A. Schlising 1980-3-24 3526 Butte NE of Chico at Covered Bridge over Butte Creek, at junction of Humbug and Honey Run Roads. Comment
  CHSC32753  Pseudognaphalium thermale J. D. Jokerst 1981-4-3 1283 Butte Near the top of the S side of Butte Cr. Canyon. 365 Comment
  CHSC29848  Psilocarphus oregonus K. R. Stern 1979-5-23 6613 Butte Ca. 5 mil SW of Paradise. 182 Comment
  CHSC48191  Psilocarphus oregonus Vernon Oswald 1987-4-15 2327 Butte Butte Creek Reserve on the s side of Butte Creek e of Hwy 99 near the valve which regulates Durham Mutual Ditch. 68 Comment
  CHSC48192  Psilocarphus tenellus var. tenellus Vernon Oswald 1987-4-15 2328 Butte Butte Creek Preserve on the s side of Butte Creek e of Hwy 99 near the valve which regulates Durham Mutual Ditch. 68 Comment
  CHSC59122  Pterostegia drymarioides L. P. Janeway; B. Castro 1992-5-9 4164 Butte Unnamed canyon on southeast side of Neal Road opposite the Butte County Land Fill; ca 1 1/2 mi northeast of Hwy 99. At base of rocks on southeast-facing slope. 89 Comment
  CHSC60133  Pterostegia drymarioides B. Castro 1992-5-16 454 Butte In bottom of unnamed canyon SE of Neal Road, in lava lining the moist S-facing vertical bank of intermittent creek. 71 Comment
  CHSC110114  Pyrus calleryana L. P. Janeway 2012-3-6 10791 Butte Sacramento Valley. Southern edge of Chico; fenceline along west side of Hwy 99 just south of Estates Drive. 65 Comment
  UC762329  Quercus berberidifolia R. F. Hoover 1938-8-2 4719 Butte Chico to Paradise road Comment
  HSC23322  Quercus douglasii D. G. Schmale 1971-5-25 32 Butte Off Skyway Rd. 8 mi W of Paradise 396 Comment
  GH344543  Quercus dumosa R. F. Hoover 1938-8-2 3719 Unknown Chico-Paradise road Comment
  CHSC90047  Quercus kelloggii Rhonda Posey 1991-4-16 20 Butte Ca. 50 m S of Butte Creek and 0.3 km W of Covered Bridge, 10.2 km ESE of Chico. 120 Comment
  CHSC3338  Quercus suber Robert L. Smith 1966-3-1 36 Butte U.S. Plant Introduction Station 5 miles S.E. of Chico. Comment
  CHSC90046  Quercus wislizeni Rhonda Posey 1991-4-16 19 Butte Ca. 50 m S of Butte Creek and 0.3 km W of Covered Bridge, 10.2 km ESE of Chico. 120 Comment
  CHSC90107  Quercus wislizeni var. wislizeni Charlie Crannell 1991-4-22 3 Butte 50 ft south of where Honey Run Road crosses Butte Creek. 103 Comment
  CHSC1471  Ranunculus aquatilis var. hispidulus J. Koopman 1929-4-25 Butte Butte Creek. 91 Comment
  CHSC33297  Ranunculus arvensis Keith A. Trujillo 1979-4-24 16 Butte 4 mi w of Paradise. 243 Comment
  CHSC29235  Ranunculus hebecarpus M. S. Taylor 1980-4-1 2424 Butte On bluffs above Covered Bridge and s of Butte Creek, ca. 5 mi e of Chico. 182 Comment
  CHSC1487  Ranunculus muricatus R. Morford 1941-4-21 Butte Butte Creek. 121 Comment
  CHSC23448  Ranunculus occidentalis var. occidentalis T. Manolis 1974-4-21 21 Butte Along Butte Creek, 3 mi e of Chico. Comment
  CHSC31209  Ranunculus occidentalis var. occidentalis M. S. Taylor 1980-4-1 2426 Butte On bluffs above Honey Run Covered Bridge, ca. 6 mi e of Chico. 182 Comment
  CHSC27841  Rhamnus ilicifolia T. B. Devine 1978-10-15 467 Butte Just below Covered Bridge on Humbug Rd. below intersection with Honey Run Rd. 106 Comment
  POM86208  Rhamnus ilicifolia C. C. Bruce 1897-05 1799 Butte Chico ion Humboldt road Comment
  CHSC27843  Rhamnus tomentella subsp. tomentella T. B. Devine 1978-10-17 468 Butte At Covered Bridge at intersection of Humbug Rd. and Honey Run Rd. Comment
  RSA30407  Rhamnus tomentella subsp. tomentella A. A. Heller 1915-5-16 s.n. Butte Chico-Centerville road 3 miles from Chico at the lower limit of the digger pine belt Comment
  RSA518945  Rhamnus tomentella subsp. tomentella J. T. Howell 1975-6-15 51073 Butte Butte Creek near Chico 6 Comment
  CHSC19950  Rhus aromatica M. S. Taylor 1975-3-10 417 Butte Ca. 25 ft s of Butte Creek, ca. 1/4 mi w of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC39647  Rhus aromatica Lowell Ahart 1983-4-10 3927 Butte Near a small wash, about 1 1/2 miles north-east of Highway 99 and Pentz Road. 100 Comment
  CHSC51844  Rhus aromatica Steven Triano 1987-4-7 37 Butte Ca 20 ft S of Honey Run Rd ca 2.7 mi E of The Skyway, out of SE Chico. 91 Comment
  CHSC51992  Rhus aromatica L. P. Janeway 1988-4-10 2617 Butte Butte Cyn; grassy slope below Centerville Rd (Humbug Rd) 1.0 mi NE of Honey Run Rd. 115 Comment
  CHSC7043  Rhus aromatica Richard Juvenal 2001-3-25 16 Butte Honey Run' road ca.3 miles e of 'Skyway' along Butte Creek. Comment
  CAS-BOT-BC212666  Ribes nevadense Mrs. J. H. Morrison 1927-7-2 1591 Butte Mountains above Durham Comment
  CHSC45291  Robinia pseudoacacia Vernon Oswald 1987-4-22 2339 Butte Butte Creek Reserve on the n side of Butte Creek e of Hwy 99. 68 Comment
  CHSC530  Rorippa nasturtium-aquaticum R. M. Staley 1952-7-5 Butte Butte Creek. 609 Comment
  CHSC9136  Rorippa nasturtium-aquaticum Terril Wolt 1970-4-20 28 Butte Streams; ca. 4 mi. N.E. of Skyway, on W. side of Humbug Rd. Comment
  CHSC113804  Rosa californica M. Ocken 2011-4-25 Butte Honeyrun Rd North side. Found along roadside at base of a slope. Roadside next to riparian. 96 Comment
  CHSC23537  Rubus armeniacus M. S. Taylor 1976-3-16 1027 Butte On n side of Butte Creek, ca. 5 ft w of Honey Run Bridge, ca. 8 mi e of Chico. 152 Comment
  CHSC45810  Rubus armeniacus L. P. Janeway 1987-5-7 2019 Butte Along Little Chico Cr at the powerlines; near Stilson Cyn Rd 0.8 mi east of Bruce Rd. 88 Comment
  CHSC65431  Rubus pensilvanicus Vernon Oswald 1987-4-16 2330 Butte Butte Creek Reserve on the n side of Butte Creek e of the Skyway. 74 Comment
  CHSC65432  Rubus pensilvanicus Vernon Oswald 1989-4-20 3743 Butte The Midway between Richvale and Hwy 162. Along roadside ditches. 30 Comment
  CHSC65434  Rubus pensilvanicus Vernon Oswald 1987-4-15 2329 Butte Dredger tailings on the w side of Hwy 99 ca. 0.5 mi n of Butte Creek Bridge. 65 Comment
  JEPS29839  Rubus praecox Rimo Bacigalupi and L. R. Heckard 1962-6-1 8583 Butte along road to Centerville about 200 feet e of its inception at the Paradise Road junction; along road to Centerville 60 Comment
  UCD113549  Rubus praecox Rimo Bacigalupi 1962-6-1 8583 Butte along fence road, along road to Centerville about 200 feet east of its inception at the Paradise Road junction. 60 Comment
  CAS-BOT-BC156610  Rubus ulmifolius John Thomas Howell 1975-6-15 51078 Butte Butte Creek near Chico 60 Comment
  CAS-BOT-BC158770  Rubus ursinus John Thomas Howell 1975-6-15 51077 Butte Butte Creek near Chico 60 Comment
  CHSC1606  Rubus ursinus R. M. Staley 1952-7-13 Butte Butte Creek. Comment
  CHSC45816  Rubus ursinus L. P. Janeway 1988-4-10 2618 Butte Butte Cyn; below Centerville Rd (Humbug Rd) 1.0 mi NE of Honey Run Rd. Near the cr. 115 Comment
  CHSC48875  Rubus ursinus Vernon Oswald 1987-4-6 2307 Butte Butte Creek Reservoir on the n side of Butte Creek e of the Skyway. 80 Comment
  CHSC48876  Rubus ursinus Vernon Oswald 1987-4-6 2308 Butte Butte Creek Reserve on the n side of Butte Creek ne of the Skyway. 80 Comment
  CHSC90031  Rumex crispus Lesly Hess 2001-5-3 Butte Honey Run Bridge. Comment
  CHSC45386  Rumex salicifolius Vernon Oswald 1987-6-18 3004 Butte Butte Creek Reserve on the s side of the creek, n of the Skyway, near the dam for Crouch Ditch. 80 Comment
  CHSC43714  Rumex salicifolius var. denticulatus Vernon Oswald 1987-6-8 2960 Butte Butte Creek Reserve on the nw side of the creek, ne of Hwy 99. 67 Comment
  CHSC43715  Rumex salicifolius var. denticulatus Vernon Oswald 1987-5-6 2377 Butte Butte Creek Reserve ca. 0.1 mi e of Hwy 99 on the n side of Butte Creek. 67 Comment
  CHSC35030  Sagina apetala A. W. Ratcliff; R. A. Schlising 1980-4-6 3551 Butte About 5 miles S of Chico along Oroville/Chico Road, near its jct with Nead Road. In vernal pool at roadside. Comment
  CHSC48261  Sagina saginoides Vernon Oswald 1987-5-12 2393 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between Crouch Ditch dam and the double set of transmission lines. On the edge of Butte Creek. 80 Comment
  CHSC51375  Sagittaria latifolia Vernon Oswald; Mary Bailey 1990-8-23 4442 Butte Durham Mutual Ditch just south of Butte Creek, ca. 0.25 mi north of Hwy 99 in south Chico. 67 Comment
  A382686  Salix exigua E. B. Copeland 1903-7-27 3491 Unknown Chico, on banks of Butte Creek Comment
  GH382687  Salix exigua E. B. Copeland 1903-7-27 3491 Unknown Chico, on banks of Butte Creek Comment
  UC437339  Salix exigua var. hindsiana W. P. Taylor 1912-6-6 Butte 4 mi se Chico (Butte Creek) Comment
  UC846523  Salix exigua var. hindsiana A. A. Heller 1915-5-16 11870 Butte 3 mi from Chico (Chico-Centerville rd.) Comment
  A382879  Salix hindsiana A. A. Heller 1915-5-16 11870 Unknown Chico-Centerville road 3 miles from Chico Comment
  CAS-BOT-BC104079  Salix hindsiana A. A. Heller 1915-5-16 11870 Butte Chico-Centerville road 3 miles from Chico Comment
  CAS-BOT-BC104080  Salix hindsiana A. A. Heller 1915-5-16 11870 Butte Chico-Centerville road 3 miles from Chico Comment
  GH383117  Salix hindsiana A. A. Heller 1915-5-16 11870 Unknown Chico-Centerville road 3 miles from Chico Comment
  CHSC65011  Salix laevigata Vernon Oswald 1987-3-26 2298 Butte Butte Creek Reserve on the e side of the Skyway and n side of Butte Creek. 73 Comment
  A383637  Salix lasiolepis A. A. Heller 1915-4-20 11858 Unknown 7 miles below Centerville in the Sierra foothills, on banks of Butte creek Comment
  CHSC65014  Salix lasiolepis Vernon Oswald 1987-4-22 2342 Butte Butte Creek Reserve between the creek and Durham Mutual Ditch, NE of Hwy 99. 68 Comment
  CAS-BOT-BC129585  Salix lasiolepis var. lasiolepis A. A. Heller 1915-4-20 11858 Butte In the digger pine and oak belt, 7 miles below Centerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  CAS-BOT-BC129586  Salix lasiolepis var. lasiolepis A. A. Heller 1915-4-20 11858 Butte In the digger pine and oak belt, 7 miles below Centerville in the Sierra foothills, where it is locally plentiful on the banks of Butte Creek. 76 Comment
  CAS-BOT-BC129488  Salix melanopsis Dr. E. B. Copeland 1903-7-27 3491 Butte Chico, on banks of Butte Creek Comment
  CAS-BOT-BC129489  Salix melanopsis Dr. E. B. Copeland 1903-7-27 3491 Butte Chico, on banks of Butte Creek Comment
  CHSC65012  Salix melanopsis Vernon Oswald 1987-7-6 3094 Butte Butte Creek Reserve on the s side of Butte Creek, ca. 0.25 mi e of the Hwy 99 bridge. 67 Comment
  POM107064  Salix melanopsis C. C. Bruce 1806 Butte Chico. Butte Creek. Comment
  POM166819  Salix melanopsis E. B. Copeland 1903-7-27 3491 Butte Chico. Butte Creek. Comment
  UC75007  Salix melanopsis Dr. E. B. Copeland 1903-5-28 3278 Butte banks of Butte Creek Chico Comment
  UC75008  Salix melanopsis Dr. E. B. Copeland 1903-7-27 3491 Butte on banks of Butte Creek Chico; Butte Creek Comment
  A384272  Salix melanopsis var. bolanderiana E. B. Copeland 1903-7-27 3491 Unknown Chico, on banks of Butte Creek Comment
  POM107305  Salix prolixa C. C. Bruce 1898-05 2481 Butte Butte Creek. Comment
  GH384561  Salix scouleriana A. A. Heller 1915-4-20 11858 Unknown 7 miles below Centerville in the Sierra foothills 76 Comment
  CHSC2821  Sanicula bipinnata David Prall 1965-3-14 6 Butte Ca. 10 yds. from edge of cliff ca. 30 yds. from Neal Rd., 1 mile east of HW 99E. Comment
  CHSC28871  Sanicula bipinnata M. S. Taylor; J. Jokerst 1980-2-23 2318 Butte Ca. 1/4 mi n of Neal Rd, on north-facing bluffs overlooking Nance Canyon, ca 4 mi sw of Paradise. 198 Comment
  CHSC28872  Sanicula bipinnata M. S. Taylor 1980-3-1 2324 Butte On w end of county dump on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC39236  Sanicula bipinnata M. S. Taylor; K. Tharp 1983-3-12 5234 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC8623  Sanicula bipinnata D. Patten 1968-3-4 59 Butte Collected 1 1/2 mi. se of Chico along Skyway. 91 Comment
  CHSC90615  Sanicula bipinnata Chris Ottinger 1983-3-15 17 Butte Ca. 0.6 km sw of Covered Bridge, s side of Butte Creek, 10.2 km ese of Chico. 120 Comment
  CHSC92566  Sanicula bipinnata L. P. Janeway 2005-3-10 8356 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC66267  Sanicula bipinnata M. S. Taylor 1980-3-1 2324 Butte W end of county dump on N side of Neal Rd., about 1 mi. E of Hwy. 99, about 7 mi. S of Chico 76 Comment
  CHSC2820  Sanicula bipinnatifida David Prall 1965-3-14 7 Butte At edge of cliff 30 yds. south of Neal Rd. 1 mile east of HW 99E. 106 Comment
  CHSC4089  Sanicula bipinnatifida L. R. Alexander 1967-4-9 7 Butte Found 4.5 mi. from Chico on the Paradise road ca. 250 yds. off the left hand side of the road. 182 Comment
  HSC23502  Sanicula bipinnatifida Judy Potter 1966-3-21 Butte Pentz Road 1 mi. E Hwy. 99E Comment
  CHSC43659  Sapium sebiferum Vernon Oswald 1987-7-8 3098 Butte Butte Creek Reserve, on the north side of Butte Creek east of the Skyway, east of Chico. On the edge of the creek. 73 Comment
  CHSC43660  Sapium sebiferum Vernon Oswald 1987-8-15 3220 Butte Butte Creek Reserve, on the n side of Butte Creek e of the Skyway, e of Chico. On the edge of the creek. 73 Comment
  POM219177  Saxifraga californica H. F. Copeland 1928-4-3 328 Butte Canyon of Butte Creek. Comment
  RSA715723  Saxifraga integrifolia L. P. Janeway 2005-3-1 8336 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Rd. 1.8 km northeast of Bruce Road. 134 Comment
  CHSC100974  Scandix pecten-veneris L. P. Janeway 2008-3-18 9234 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC1986  Scandix pecten-veneris V. Holt 1935-4-7 Butte Covered bridge, Butte Creek. 108 Comment
  CHSC2824  Scandix pecten-veneris David Prall 1965-4-25 32 Butte South side of Humbug Rd. 0.3 miles west of junction with Honey Run rd. (covered bridge). 198 Comment
  CHSC3285  Scandix pecten-veneris M. L. Hillier 1966-5-7 Butte About 3 miles n.e. of Skyway on Humbug rd. Comment
  CHSC3979  Scandix pecten-veneris E. P. Parreno 1967-4-10 Butte Ca. 400 yards upstream from Covered Bridge. Comment
  CHSC4182  Scandix pecten-veneris Kathy Sommarstrom 1967-4-15 30 Butte Found to the right side of Honey Run Rd in front of new bridge next to covered bridge. 76 Comment
  JEPS117892  Scandix pecten-veneris L. P. Janeway 2008-3-18 9234 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road 123 Comment
  CAS-BOT-BC111652  Schoenoplectus mucronatus L. P. Janeway 1988-6-29 2906 Butte Spring where Crouch Ravine fades into Coon Ridge, 1/4 mi south of Skyway, 170 Comment
  CHSC45118  Schoenoplectus mucronatus Vernon Oswald 1987-7-20 3138 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, between the dam for Crouch Ditch and the double set of transmission lines. 82 Comment
  CHSC57152  Schoenoplectus mucronatus L. P. Janeway 1988-6-29 2906 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi south of Skyway, 2.9 mi east of the Butte Creek bridge. 170 Comment
  CHSC45117  Scirpus microcarpus Vernon Oswald 1987-5-25 2923 Butte Butte Creek Reserve on the se side of Butte Creek ne of Hwy 99, downstream from the dam for the Durham Mutual Ditch. 68 Comment
  UC887501  Scrophularia californica A. A. Heller 1916-4-13 12322 Butte e Chico (Stilson Canyon) Comment
  CHSC4078  Scrophularia californica subsp. floribunda J. E. Bowlin 1967-4-16 25 Butte Few plants in field, ca. 1/4 mile after you turn off 99, going s from Chico turn left on the first dirt road past Butte Creek Bridge and 99, Chico. 59 Comment
  CHSC74680  Scutellaria californica Mary Bailey 1990-5-5 Butte North side of Nance Canyon. 152 Comment
  CHSC74681  Scutellaria siphocampyloides Mary Bailey 1990-5-5 Butte North side of Nance Canyon. 152 Comment
  HSC40295  Sedella congdonii J. P. Smith, J. O. Sawyer 1973-4-14 6043 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CAS-BOT-BC415025  Sedella pumila A. A. Heller 1914-4-27 11329 Butte Along the Chico-Oroville road on the lava plains 6 miles from Chico Comment
  CHSC23467  Sedella pumila J. R. Lee 1974-4-22 3 Butte 15 yards n of the Skyway roadside ca. 6 mi se of the Chico city limits. 152 Comment
  CHSC30973  Sedella pumila Joann Lacey 1979-4-13 19 Butte Ca. 1.1 mi ne of jct of Humboldt rd. and Stilson Canyon Rd. Ca. 3.9 mi ne of Chico. 129 Comment
  CHSC31089  Sedella pumila Robert A. Boer 1980-4-25 19 Butte Ca. 1/4 mi n of Humboldt Rd. and 1.5 mi e of the jct of Hwy 32 and Hwy 99, ca. 2.0 mi e of Chico. 131 Comment
  CHSC33354  Sedella pumila R. M. Winchell 1980-4-17 6 Butte Covered Bridge along Little Butte Creek. Comment
  CHSC71111  Sedella pumila Jan Monelo 1989-4-11 5 Butte Ca 50 yds e of Covered Bridge, ca 7 mi e of Chico. 121 Comment
  CHSC90599  Sedella pumila Ramona Hurst 1984-4-22 9 Butte Found on s side of Humboldt Ave. ca. 6 yds s of rd, 0.5 mi e of intersection with Bruce Rd. 64 Comment
  CHSC90601  Sedella pumila Steven H. Roth 1980-3-15 6 Butte 50 m s Butte Creek at the Honeyrun bridge, 10 km se of Chico. Comment
  CHSC90604  Sedella pumila M. J. Luesebrink 1978-4-12 16 Butte Ca. 300 ft. s of Butte Creek, ca. .25 mi sw of Covered Bridge, n of Humbug Rd., 4.4 mi ne of junction with Skyway Rd., 5.7 mi ese of Chico. 91 Comment
  RSA20868  Sedella pumila C. B. Wolf 1937-3-29 8329 Butte Sacramento Valley, 1/2 mile SE of Butte Creek on Chico-Oroville Rd. 58 Comment
  SFV1575  Sedella pumila M. L. Vincent 1962-4-15 192 Butte Sierra Nevada Skyway. 4 miles west of Paradise, overlooking Butte Canyon. 215 Comment
  SJSU5138  Sedella pumila C. D. Duncan 1963-5-4 Butte Neal Rd between Chico & Paradise, Sierra Nevada foothills 487 Comment
  CHSC24884  Sedum spathulifolium V. L. Keeran 1976-4-20 10 Butte Ca. 4 m e of Butte Creek and 0.41 km s of Covered Bridge, 10.66 km ese of Chico. 127 Comment
  CHSC24945  Sedum spathulifolium M. L. McCrum 1976-4-27 20 Butte Pop. ca. 6.5 mi e of Chico, .1 mi w of Covered Bridge, along creek. 112 Comment
  CHSC3520  Sedum spathulifolium John Francis 1966-4-16 116 Butte S. of covered bridge (Honey Run). Comment
  CHSC57368  Sedum spathulifolium Rebecca Hill 1990-4-17 16 Butte Vic. Covered Bridge S bank of Butte Ck., ca. 7 mi e of Chico. 121 Comment
  CHSC28877  Selaginella hansenii M. S. Taylor 1980-3-1 2330 Butte West end of county dump on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC39237  Selaginella hansenii M. S. Taylor; K. Tharp 1983-3-12 5237 Butte Off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  CHSC2813  Senecio vulgaris David Prall 1965-3-14 11 Butte Ca 1 yd. south of Neal Rd. 1 mile east of HW. 99E. 106 Comment
  CHSC92561  Senecio vulgaris L. P. Janeway 2005-3-1 8334 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC45319  Setaria parviflora Vernon Oswald 1988-10-29 3722 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) in se Chico. 68 Comment
  CHSC46981  Setaria parviflora Vernon H. Oswald 1989-9-19 4012 Butte Chico Tree Improvement Center (former USDA Plant Introduction Station) in s Chico. Along Comanche Creek. 68 Comment
  CHSC49572  Setaria sphacelata Vernon Oswald 1987-8-30 3228 Butte Skyway ca. 2.4 mi e of the Butte Creek Bridge at the double set of transmission lines. In a roadside ditch. 173 Comment
  CHSC92545  Sherardia arvensis L. P. Janeway 2005-3-10 8350 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  RSA715852  Sherardia arvensis L. P. Janeway 2005-3-10 8350 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC1045  Sidalcea calycosa F. Johnson 1937-7-25 Butte Above Covered Bridge, on Butte Creek. 152 Comment
  CHSC13724  Sidalcea calycosa J. G. Moore 1969-4-13 141 Butte Stilson Canyon Rd., 1.4 mi. se of jct. with Bruce Rd., Chico. Comment
  CHSC24938  Sidalcea calycosa Kimberly J. Weir 1976-4-15 5 Butte Ca. 1 mi s of Big Chico Creek and 1.5 mi ene of Chico, 20 ft n of Humboldt Road. 60 Comment
  HSC46141  Sidalcea calycosa subsp. calycosa J. P. Smith, J. O. Sawyer 1973-4-14 6053 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC23468  Sidalcea hartwegii J. R. Lee 1974-4-20 2 Butte On hill sw of Covered Bridge 7.2 mi from the Chico city limits on Honey Run Road. 137 Comment
  CHSC52092  Sidalcea hartwegii N. Kvasnik 1980-4-20 16 Butte Covered Bridge. E side of creek, s of bridge. 91 Comment
  CHSC52446  Sidalcea hartwegii Denise Monceau 1984-4-11 12 Butte Ca 5 mi from hwy 99; jct of Honey Run and Humbug Roads. SE side of road. 106 Comment
  GH420704  Sidalcea hartwegii A. A. Heller 1914-4-16 11298 Unknown near the Plant Introduction Garden, 2 miles from Chico Comment
  UC204919  Sidalcea hartwegii A. A. Heller 1914-4-16 11298 Butte 2 mi from Chico; 2 mi from Chico Comment
  UC871514  Sidalcea hartwegii A. A. Heller 1914-4-16 11298 Butte 2 mi from Chico; 2 mi from Chico Comment
  UCD80453  Sidalcea hartwegii CNPS SN Foothill Team 2005-4-13 SNFN 0078 c Butte City of Chico, Doe Mill Meadowfoam Preserve, at the east end of Warfield Street, ca. 85 m south of the Preserve gate entrance. 82 Comment
  GH420751  Sidalcea hirsuta A. A. Heller 1915-5-16 11871 Unknown Chico-Centerville road 3 miles from Chico at the lower limit of the digger pine belt Comment
  UC140833  Sidalcea hirsuta Mrs. R. M. Austin Apr. 1896 693 Butte plains e Chico; plains e of Chico Comment
  UC871460  Sidalcea hirsuta A. A. Heller 1915-5-16 11871 Butte Chico-Centerville road 3 mi from Chico; 3 mi from Chico Comment
  CHSC1061  Sidalcea robusta F. Johnson 1937-5-25 Butte Near Covered Bridge on Butte Creek. 108 Comment
  CHSC28789  Sidalcea robusta J. D. Prouty 1979-5-23 7905231 Butte Along the s cliffs of Butte Creek Canyon, 900' n of the Skyway, ca. 4 mi e of Chico. 164 Comment
  UCD80449  Sidalcea robusta CNPS SN Foothill Team 2006-5-24 SNNR 0929 Butte Horning Ranch (private). 117 Comment
  CHSC24877  Silene laciniata subsp. californica T. L. Reynolds 1976-4-23 57 Butte .6 mi ne of Covered Bridge, 7.5 mi ese of Chico. 152 Comment
  CHSC3658  Sinapis arvensis Robert D. Briggs 1966-3-15 R- 58 Butte 5 miles south of downtown Chico near hwy. U.S. 99E. Comment
  CHSC12106  Sisyrinchium bellum J. M. Pitts 1972-4-19 149 Butte 3.5 mi ne Honeyrun Rd on Humbug Rd. n side of road. Comment
  UC462997  Solanum aviculare E. B. Copeland Sept., 1931 Mendocino P. I. Garden, Chico Comment
  CHSC2519  Solanum parishii W. Fitzwater 1958-4-12 Butte Humboldt Rd., Chico area. 426 Comment
  CHSC8621  Solanum parishii L. V. Ritter 1969-4-29 207 Butte 4.2 mi. se of Chico, s side of Humbug Rd. Comment
  CHSC62626  Solanum rostratum Patrick E. Kelly 1994-2-10 Butte N side of Doe Mill Rd. just E of Butte Creek Diversion in S Chico. 83 Comment
  CHSC38123  Sonchus asper R. L. Ondricek-Fallscheer 1983-5-8 170 Butte On se side of tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 188 Comment
  CHSC29108  Spartium junceum M. S. Taylor; J. D. Jokerst 1980-4-27 2565 Butte On s side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 137 Comment
  CHSC34999  Spergularia bocconi A. Ratcliff; R. A. Schlising 1980-4-6 3550 Butte About 5 mi S of Chico, near junction of Oroville-Chico Road and Neal Road. At roadside. Comment
  CHSC1610  Spiraea douglasii R. M. Staley 1952-7-13 Butte Butte Creek. Comment
  CHSC49641  Spirodela polyrhiza Vernon Oswald 1987-4-20 2334 Butte Butte Creek Preserve on the s side of the creek ne of the Skyway. On the edge of a dredger pond. 85 Comment
  CHSC43639  Stachys ajugoides var. rigida B. Castro 1987-8-25 204 Butte On gravel bars of Butte Ck ca 1/4 mi e of Hwy 99 crossing, ca 2.1 mi s of Skyway in Chico. 60 Comment
  CHSC43644  Stachys pycnantha B. Castro 1987-8-25 205 Butte On gravel bars of Butte Ck ca 1/4 mi e of Hwy 99 crossing, ca 2.1 mi s of Skyway in Chico. 60 Comment
  CHSC43645  Stachys pycnantha B. Castro 1987-8-29 211 Butte Several feet from s edge of Butte Ck, ca 1/2 mi e of Hwy 99 crossing ca 2.1 mi s of Skyway in Chico. 68 Comment
  CHSC52207  Stachys stricta L. P. Janeway 1988-6-26 2882 Butte SE rim of Coon Ridge, overlooking Nance Cyn; ca 0.6 mi NE of the power lines (high voltage). S-facing seep at the rim. 182 Comment
  CHSC52208  Stachys stricta L. P. Janeway 1988-6-29 2900 Butte Spring where Crouch Ravine fades into Coon Ridge; 1/4 mi S of the Skyway, 2.9 mi E of the Butte Cr bridge. 170 Comment
  CHSC27070  Stellaria nitens Sandra C. Morey 1978-3-15 1 Butte Honeyrun Covered Bridge, off Humbug Road, ca. 4.4 mi se of junction Skyway Road and 5.2 mi se of junction Highway 99 at Chico. North facing slope on south side of Butte Creek. 91 Comment
  CHSC39209  Stellaria nitens M. S. Taylor; K. Tarp 1983-3-12 5241 Butte Along small rd off Stillson Canyon Rd (leading to Mannion property), ca. 3 mi sse of Chico. 152 Comment
  UCD116032  Streptanthus longisiliquus Robert E. Preston 2001-7-9 1673 Butte N side of The Skyway, ca. 0.15 m w of Dogtown Rd, T23N R3E nw 1/4 of ne 1/4 Section 36 713 Comment
  UCD78022  Streptanthus longisiliquus Robert E. Preston 2001-7-9 1673 Butte N side of The Skyway, ca. 0.15 m w of Dogtown Rd, T23N R3E nw 1/4 of ne 1/4 Section 36 713 Comment
  CHSC48022  Symphoricarpos albus var. laevigatus Vernon Oswald 1987-5-7 2380 Butte Butte Creek Reserve on the N side of Butte Creek E of the Skyway. 74 Comment
  CHSC69668  Symphyotrichum chilense Vernon H. Oswald 1987-5-6 2376 Butte Butte Creek Reserve e of Hwy 99 between Butte Creek and Durham Mutual Ditch. 67 Comment
  CHSC117414  Symphyotrichum subulatum var. parviflorum B. Castro; Tom Boullion 2008-8-21 1765 Butte Sacramento Valley. Ca 3.5 mi SE of Chico, 3 mi NE of Durham, near W edge of Butte Creek ca 0.5 mi upstream of its crossing under the Oro Chico Hwy. 56 Comment
  RSA739616  Taeniatherum caput-medusae L. P. Janeway, B. Castro 2007-5-19 8979 Butte Cascade Range Foothills, Bottom of unnamed drainage on SE side of Neal Road, 2.9 air km NE of Hwy 99, under the high power lines. 91 Comment
  CAS-BOT-BC88202  Thysanocarpus curvipes A. A. Heller 1915-4-20 11855 Butte Chico-Centers road 3 miles from Chico. Comment
  CAS-BOT-BC88203  Thysanocarpus curvipes A. A. Heller 1915-4-20 11855 Butte Chico-Centers road 3 miles from Chico. Comment
  CHSC19945  Thysanocarpus curvipes M. S. Taylor 1975-3-10 413 Butte On bluffs overlooking Butte Creek, ca. 1/4 mi sw of Covered Bridge, ca. 8 mi e of Chico. Comment
  CHSC2817  Thysanocarpus curvipes David Prall 1965-3-14 12 Butte Next to Neal Rd. 1 mile east of HW. 99E. 106 Comment
  CHSC31144  Thysanocarpus curvipes M. S. Taylor 1980-3-1 2337 Butte On north facing bluffs looking into Nance Canyon, ca. 1/4 mi n of Neal Rd, ca. 3 mi e of its jct with Hwy 99, ca. 7 mi s of Chico. 121 Comment
  CHSC3245  Thysanocarpus curvipes Virginia Hagaman 1966-3-2 10 Butte 3.2 miles north of 99E on Neal Road. 243 Comment
  CHSC34527  Thysanocarpus curvipes R. E. Preston 1982-2-4 160 Butte Top of cliffs, s rim of Butte Creek canyon above Honeyrun Covered Bridge, ca. 7.5 mi e of Chico. 289 Comment
  CHSC41134  Thysanocarpus curvipes R. J. Goedl 1976-4-20 4 Butte Ca. 6.4 mi se of Chico on Skyway, 50 yds s of Highway. Field. 213 Comment
  HSC64129  Thysanocarpus curvipes J. P. Smith 1973-3-22 5921 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  SFV1538  Thysanocarpus curvipes M. L. Vincent 1961-3-28 13 Butte Sierra Nevada Skyway on road from Paradise to Chico; overlooking "Little Grand Canyon." Dry mesa. 215 Comment
  SJSU15298  Thysanocarpus curvipes Lisa Morton 2002-3-30 12 Butte Upper Bidwell Park, along N, Rim Trail at top of butte. 80 Comment
  UC857555  Thysanocarpus curvipes A. A. Heller 1915-4-20 11855 Butte Chico-Centerville road 3 mi from Chico Comment
  CHSC100975  Thysanocarpus curvipes var. curvipes L. P. Janeway 2008-3-18 9233 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  RSA755350  Thysanocarpus curvipes var. curvipes L. P. Janeway 2008-3-18 9233 Butte Cascade Range Foothills. East edge of City of Chico, south side of Humboldt Road 1.3 km northeast of Bruce Road. 123 Comment
  CHSC24155  Thysanocarpus curvipes var. elegans B. Bunge 1976-4-22 18 Butte Ca. 100 yd. s of Skyway, ca. 8 mi. ese of Chico. 259 Comment
  CHSC34797  Torilis nodosa M. S. Taylor 1980-4-27 2571 Butte On n side of Humbug Rd, ca. 1/2 mi upstream from Honey Run Covered Bridge, ca. 7 mi e of Chico. 121 Comment
  A347256  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Unknown Stilson canon east of Chico Comment
  CAS-BOT-BC172923  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Butte Stilson [canon] Canyon east of Chico Comment
  CAS-BOT-BC172929  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Butte Stilson [canon] Canyon of Chico Comment
  CHSC14052  Toxicodendron diversilobum D. Farrell 1974-4-30 13 Butte Around Honey Run Covered Bridge, on Humbug Rd, ca. 6 mi. e of Chico. Comment
  GH347281  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Unknown Stilson canon east of Chico Comment
  LA62838  Toxicodendron diversilobum A. A. Heller; 1916-4-13 12321 Butte Stilson Canon E of Chico Comment
  RSA28826  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Butte Stilson Canyon east of Chico Comment
  UC869710  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Butte Stilson Canyon e. of Chico; Stilson Canyon Comment
  CHSC52079  Trichostema lanceolatum Steven Triano 1988-9-18 257 Butte Dry rocky pasture ca 300 ft e of Hwy. 32 and 2.5 mi e of its jct. with Hwy. 99. 121 Comment
  CHSC812  Trichostema lanceolatum V. Holt; M. Underhill 1952-7-21 Butte Foothills near Chico. 60 Comment
  SFV3264  Trichostema lanceolatum M. L. Vincent 1960-9-8 54 Butte Sierra Nevada On bluff overlooking Butte Creek Canyon on the road (Skyway), 3 miles west of Paradise. 215 Comment
  UC631536  Trifolium albopurpureum var. albopurpureum A. A. Heller 1914-4-16 11294 Butte 8 mi s Chico (Chico-Centerville rd) Comment
  CHSC24150  Trifolium albopurpureum var. olivaceum B. Bunge 1976-4-20 13 Butte Ca. 100 yd s of Skyway, 5 mi ese of Chico. 213 Comment
  CHSC4181  Trifolium albopurpureum var. olivaceum E. P. Parreno 1967-4-10 Butte Common along roadsides. Skyway. Comment
  CHSC48573  Trifolium albopurpureum var. olivaceum Vernon Oswald 1985-4-1 1690 Butte West side of Hwy 99 0.9 mi n of Neil Rd. 68 Comment
  CHSC62744  Trifolium bifidum var. decipiens L. P. Janeway; Barbara Castro 1993-5-8 4345 Butte Un-named canyon on southeast side of Neal Road opposite the Butte County landfill; ca 1.5 mi northeast of Hwy 99. 76 Comment
  CHSC24946  Trifolium ciliolatum Jodi Host 1976-4-27 5 Butte Ca. 100 yds s of Butte Creek and .1 mi w of Covered Bridge, 6.4 mi e of Chico. 121 Comment
  HSC43356  Trifolium depauperatum Maralyn O'Meara 1974-4-20 270 Butte Skyway Drive, 1 mi. E of Hwy. 99 61 Comment
  RSA715853  Trifolium depauperatum L. P. Janeway 8349 Butte East edge of Ciity of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  UC631066  Trifolium depauperatum var. amplectens A. A. Heller 1915-4-20 11851 Butte 3 mi from Chico (Chico-Centerville Rd) Comment
  CHSC92503  Trifolium depauperatum var. depauperatum L. P. Janeway 2005-3-10 8349 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  UC1506094  Trifolium depauperatum var. depauperatum Robert T. Clausen 1963-3-20 63008 Butte e Mutual Ditch (low ridge, s of Chico); Sacramento River 57 Comment
  SJSU15297  Trifolium depauperatum var. truncatum Lisa Morton 2002-3-24 9 Butte Upper Bidwell Park, Base of N. Rim Trail. Comment
  CDA43073  Trifolium dubium L. P. Janeway, B. Castro 2011-6-5 10360 Butte Cascade Range Foothills.; East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. Comment
  CHSC108756  Trifolium dubium L. P. Janeway; B. Castro 2011-6-5 10360 Butte Cascade Range Foothills. East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. 149 Comment
  CHSC96562  Trifolium dubium L. P. Janeway 2006-4-30 8565 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725058  Trifolium dubium L. P. Janeway 2006-4-30 8565 Butte Cascade range Foothills. East edge of city of Chico; northwest side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CDA43072  Trifolium glomeratum L. P. Janeway, B. Castro 2011-6-5 10359 Butte Cascade Range Foothills.; East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. Comment
  CHSC108771  Trifolium glomeratum L. P. Janeway; B. Castro 2011-6-5 10359 Butte Cascade Range Foothills. East side of Chico; along south side of Humboldt Road 2.1 road km east of Bruce Road. 149 Comment
  JEPS118659  Trifolium glomeratum L. P. Janeway, B. Castro 2011-6-5 10359 Butte Cascade Range Foothills. East side of Chico; along south side of Humboldt Road 2.1 km east of Bruce Road. Chico 7.5' quad. Comment
  HSC43357  Trifolium variegatum Maralyn O'Meara 1974-4-20 271 Butte Skyway Drive, 1 mi. E of Hwy. 99 61 Comment
  CHSC24151  Trifolium willdenovii B. Bunge 1976-4-20 14 Butte Ca. 100 yd. s of Skyway, 5 mi. ese of Chico. 213 Comment
  CHSC2836  Trifolium willdenovii David Prall 1965-4-25 28 Butte Growing on road side bank on north side of Humbug Rd. 0.3 mi west of junction with Honeyrun Rd. (covered bridge). 152 Comment
  CHSC3279  Trifolium willdenovii M. L. Hillier 1966-5-11 Butte Along rd. side 2.4 miles e. of covered bridge on Honeyrun rd. Comment
  CHSC90381  Trifolium willdenovii Lisa J. Newsum 1984-4-19 20 Butte Bidwell Heights Rd., 1 1/4 mi from jct. with Hwy 32, 7 mi e of Chico. 304 Comment
  HSC71454  Trifolium willdenovii J. P. Smith, J. O. Sawyer 1973-4-14 6048 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  UC204386  Trifolium willdenovii A. A. Heller 1914-4-16 11299 Butte 2 mi from Chico (in the field near the Plant Introduction Garden) Comment
  UC725941  Trifolium willdenovii A. A. Heller 1938-5-4 15059 Butte e Chico (near covered bridge over Butte Creek) Comment
  CHSC57836  Triglochin scilloides Vernon H. Oswald 1992-4-7 4893 Butte East side of the dike along Butte Creek Diversion Channel, ca. 500 ft N of the Skyway in south Chico. On the bottom of a vernal pool. 70 Comment
  CHSC74079  Triodanis perfoliata B. Castro; L. P. Janeway 1992-5-10 454 A Butte In bottom of unnamed canyon just SE of Neal Road, opposite the Butte County Landfill, ca 1.5 mi E of Hwy 99. 71 Comment
  CHSC2814  Triphysaria eriantha David Prall 1965-3-14 2 Butte Along side of road, ca 5 yards East of Neal Rd. 1 mile East of Highway 99E. 106 Comment
  CHSC28906  Triphysaria eriantha M. S. Taylor 1980-3-1 2325 Butte West end of county dump on n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC3549  Triphysaria eriantha Gary Dutton 1966-2-21 26 Butte Found N. W. 99E on Neal Rd. about 1/2 mile. Comment
  CHSC43181  Triphysaria eriantha Joann Lacey 1979-3-16 3 Butte Ca. 1.1 mi ne of jct of Humboldt Rd. and Stilson Canyon Rd., ca. 3.9 mi ne of Chico. 129 Comment
  CHSC92565  Triphysaria eriantha subsp. eriantha L. P. Janeway 2005-3-1 8332 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  HSC70518  Triphysaria eriantha subsp. eriantha J. P. Smith 1973-3-22 5927 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  UC1506093  Triphysaria eriantha subsp. eriantha Robert T. Clausen 1963-3-20 63007 Butte s Chico (on low ridge e of Mutual Ditch); Sacramento River Drainage, Sacramento Valley 57 Comment
  UCD93591  Trisetum canescens August L. Hormay 1929-6-29 s.n. Butte Butte Creek. Comment
  CHSC27790  Triteleia bridgesii Eric D. Osman 1978-4-22 1 Butte Ca. 4.1 mi ne of Chico and 0.4 mi s of Hwy 32, 50 ft s of Humboldt Road. Central se borders of Sect 21. 201 Comment
  CHSC30804  Triteleia bridgesii M. S. Taylor; J. D. Jokerst 1980-4-19 2544 Butte S side of Butte Creek, ca. 1/4 mi upstream from Honey Run Covered Bridge, ca. 6 mi e of Chico. 182 Comment
  CHSC96557  Triteleia bridgesii L. P. Janeway 2006-4-30 8571 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.2 km northeast of Bruce Road. 146 Comment
  RSA725063  Triteleia bridgesii L. P. Janeway 2006-4-30 8571 Butte Cascade Range Foothills, E edge of City of Chico, NW side of Humboldt road 2.2km NE of Bruce Road. 146 Comment
  CHSC24696  Triteleia hyacinthina L. Casto 1976-4-28 19 Butte 50 yd s of Skyway, ca. 4 mi e of intersection of Hwy 99 and Skyway. 182 Comment
  CHSC81336  Triteleia hyacinthina J. Trizzino 2001-4-29 62 Butte End of Potter Road north of Skyway before Honey Run, at meeting with a seasonal creek, nearly dry at this time. 80 Comment
  CHSC2816  Triteleia laxa David Prall 1965-3-14 5 Butte Ca. 30 yds. South of Neal Rd., 1 mile east of Highway 99E. 106 Comment
  CHSC4207  Triteleia laxa L. R. Alexander 1967-4-8 25 Butte Found 4 mi se of Chico ca. 200 yds. Off the left hand side of Paradise road. 182 Comment
  CHSC52145  Triteleia laxa M. J. Clauss 1975-5-5 25 Butte Ca. 50 ft+ s from the Skyway, 5.6 mi ene from the junction of the Skyway and Highway 99E. 225 Comment
  CHSC7136  Triteleia laxa Meredith Krienke 1969-4-28 11 Butte 3 mi e of Chico on Humboldt Rd. 10 ft. off of n side. 60 Comment
  CHSC90022  Triteleia laxa Ross Rowland 2001-4-30 50 Butte On the south side of Honey Run Creek. About 1/4 mile east of the Butte and Honey Run Creek fork. 614000mE/4400480mN/zone 10N. 213 Comment
  CHSC90618  Triteleia laxa Jack Judkins 1983-4-16 12 Butte 6 mi east-southeast of Chico, 100 yds north of Butte Creek, 20 yds west of Covered Bridge. 106 Comment
  CHSC96395  Triteleia laxa L. P. Janeway 2006-4-30 8560 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725053  Triteleia laxa L. P. Janeway 2006-4-30 8560 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  SJSU15291  Triteleia laxa Lisa Morton 2002-3-31 21 Butte Upper Bidwell Park, Base Middle Trail just off parking lot. 50 Comment
  CHSC24947  Triteleia lilacina L. Pizatella 1976-4-19 18 Butte Ca 100 yd s of the Skyway and 7.4 mi ese of Chico. 213 Comment
  CHSC4075  Triteleia lilacina H. E. Lindahl 1967-4-6 10 Butte Located 1.1 mi. n of county dump on Neal Road. 152 Comment
  CHSC96560  Triteleia lilacina L. P. Janeway 2006-4-30 8568 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  RSA725060  Triteleia lilacina L. P. Janeway 2006-4-30 8568 Butte Cascade range Foothills. East edge of city of Chico; NW side of Humbolt Road 2.4 km northeast of Bruce Road. 149 Comment
  CHSC50427  Ulmus carpinifolia Vernon Oswald; Mary Bailey 1990-6-13 4292 Butte Durham Mutual Ditch north of Hwy 99, on the south side of Butte Creek, south of Chico. The location is about 0.5 mi southeast of the former USDA Plant Introduction Station. 67 Comment
  CAS-BOT-BC91085  Umbellularia californica R. F. Hoover 1965-10-16 9721 Butte Deer Creek Road east of Chico. Comment
  CHSC52091  Umbellularia californica Dale Johnson 1979-4-2 1 Butte Humbug Road 5 mi ne of Skyway 5 mi from Chico. Comment
  CHSC815  Umbellularia californica J. Cowan 1931-5-30 Butte Humboldt road. Comment
  OBI13418  Umbellularia californica Robert F. Hoover 1965-10-16 9721 Butte Deer Crk rd E of Chico Comment
  CHSC32600  Uropappus lindleyi J. D. Jokerst 1980-4-17 618 Butte Butte Cr Canyon ca 100 m S of Covered Bridge (jct of Humbug and Honeyrun Rds). Comment
  CHSC35074  Uropappus lindleyi R. A. Schlising 1980-4-3 3544 Butte E of Chico and SW of Paradise along Skyway. Comment
  CHSC60693  Urtica urens Vernon H. Oswald; James Snowden 1993-4-7 5253 Butte Cattle barns near the mouth of Hamlin Canyon, McKnight Ranch on the E side of Hwy.99 between Durham-Pentz and Neal Roads, S of Chico. 85 Comment
  CHSC45294  Utricularia gibba Vernon Oswald 1987-9-9 3237 Butte Butte Creek Reserve on the south side of Butte Creek, n of the Skyway, ca. 0.2 mi e of the Crouch Ditch diversion dam. Along edge of a dredger pond. 80 Comment
  CHSC45295  Utricularia gibba Vernon Oswald 1987-9-9 3238 Butte Butte Creek Reserve on the s side of Butte Creek, n of the Skyway, ca. 0.3 mi w if the double set of transmission lines. In a backwater of Butte Creek. 82 Comment
  CHSC818  Utricularia vulgaris M. Anthony 1962-5-11 Butte Dredger Pond, just N.E. of Skyway bridge over Butte Creek. 67 Comment
  CHSC60079  Velezia rigida B. Castro; L. P. Janeway 1992-5-9 452 Butte On SE-facing slope of unnamed canyon SE of Neal Road. 76 Comment
  CHSC1897  Verbascum thapsus R. M. Staley 1953-7-3 Butte Butte Creek. Comment
  CHSC36702  Verbascum thapsus S. Posner 1972-9-24 Butte Butte Creek. 300 yds. south of Humbug Rd., 3 miles east of Skyway. Comment
  CDA42883  Verbascum virgatum L. Ahart 2012-5-31 18115 Butte On the south side of Neal Road, west of the intersection of Highway 99 and Neal Road, about 3 miles (air) south of Chico. Comment
  CHSC109603  Verbascum virgatum Lowell Ahart 2012-5-31 18115 Butte On the south side of Neal Road, west of the intersection of Highway 99 and Nearl Road, about 3 miles (air) south of Chico. 59 Comment
  JEPS119901  Verbascum virgatum Lowell Ahart 2012-5-31 18115 Butte On the south side of Neal Road, west of the intersection of Highway 99 and Neal Road, about 3 miles (air) south of Chico. Comment
  RSA0045591  Verbascum virgatum Lowell Ahart 2012-5-31 18115 Butte On the south side of Neal Road, west of the intersection of Highway 99 and Neal Road, about 3 miles (air) south of Chico. 59 Comment
  CHSC39061  Veronica arvensis R. A. Schlising; A. Ratcliff 1980-4-6 3548 Butte About 5 miles s of Chico, at the junction of Neal Road and Oroville-Chico Highway. 53 Comment
  CHSC39059  Veronica peregrina subsp. xalapensis R. A. Schlising; A. Ratcliff 1980-4-6 3546 Butte About 5 miles s of Chico at junction of Neal Road and Oroville-Chico Highway. 53 Comment
  CHSC3247  Veronica persica Virginia Hagaman 1966-2-21 11 Butte 1/2 mile east of Butte Creek on old Oroville-Chico Road. Comment
  CHSC48593  Vicia benghalensis Vernon Oswald 1987-10-8 3241 Butte Chico Tree Improvement Center in se Chico. 68 Comment
  CHSC3373  Vicia sativa Robert L. Smith 1966-4-15 8 Butte Hwy 99 E 2 miles S. of Chico. Comment
  RSA715851  Vicia sativa L. P. Janeway 2005-3-10 8351 Butte Cascade Range Foothills [error: actually Sierra Nevada foothills] E edge of city of Chico, N side of Humboldt Road 1.8 km NE of Bruce Road. 134 Comment
  CHSC30678  Vicia sativa subsp. nigra M. S. Taylor 1980-3-1 2326 Butte West end of Chico City dump, on w boundary, n side of Neal Rd, ca. 1 mi e of Hwy 99, ca. 7 mi s of Chico. 76 Comment
  CHSC92577  Vicia sativa subsp. sativa L. P. Janeway 2005-3-10 8351 Butte Cascade Range Foothills. East edge of city of Chico; north side of Humboldt Road 1.8 km northeast of Bruce Road. 134 Comment
  CHSC100987  Vicia villosa subsp. varia L. P. Janeway 2008-3-18 9240 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road. 126 Comment
  CHSC3271  Vicia villosa subsp. varia M. L. Hillier 1966-3-28 Butte About 50 ft. n. of Butte Creek and 220 ft. w. of bridge carrying Hwy. 99E. which is 4 miles s. of C.S.C. Comment
  CHSC48591  Vicia villosa subsp. varia Vernon Oswald 1987-3-31 2305 Butte Butte Creek Reserve on the s side of Butte Creek n of the Skyway. 85 Comment
  CHSC90012  Vicia villosa subsp. varia Laurie L. Gordon 1991-4-12 8 Butte 3 mi east of Hwy 99, about 250 ft south of Hwy 32. 54 Comment
  JEPS117894  Vicia villosa subsp. varia L. P. Janeway 2008-3-18 9240 Butte Cascade Range Foothills. East edge of City of Chico; south side of Humboldt Road 1.4 km northeast of Bruce Road 126 Comment
  CHSC90243  Vinca major T. H. Watroba 1989-4-11 9 Butte Ca. 20 m n of Butte Creek, 15 m e of Covered Bridge, 10.4 km ese of Chico. 120 Comment
  CHSC3850  Viola douglasii L. E. Dunkel 1965-3-16 7 Butte Honey Run Road of Butte Canyon ca. 2 mi sw of Honey Run Covered Bridge. 42 Comment
  CAS-BOT-BC203023  Vitis californica John Thomas Howell 1975-6-15 51068 Butte Butte Creek near Chico 60 Comment
  CAS-BOT-BC385043  Vitis californica John Thomas Howell 1975-6-15 51068 Butte Skyway between Chico and Paradise at Butte Creek 60 Comment
  CHSC13919  Vitis californica E. S. Caldwell 1974-4-24 3 Butte Along Humbug Rd, ca. 3 mi e of the Skyway to Paradise. 60 Comment
  CHSC49591  Vulpia bromoides Vernon Oswald 1984-5-16 1189 Butte Near Chico on the Skyway ca. 1 mi e of Hwy 99 at the Little Chico Creek--Butte Creek Diversion Channel. Along the edge of a vernal pond. 68 Comment
  CHSC56902  Vulpia bromoides J. D. Jokerst 1980-6-6 Butte Adjacent to Humboldt Road, 3 mi east of Chico. Comment
  HSC41100  Vulpia microstachys J. P. Smith, J. O. Sawyer 1973-4-14 6057 Butte Bruce Lane, between Skyway and Humboldt Rd., E of Chico. Comment
  CHSC96622  Vulpia microstachys var. ciliata L. P. Janeway 2006-4-30 8566 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  JEPS113333  Vulpia microstachys var. ciliata L. P. Janeway 2006-4-30 8566 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. Comment
  RSA725059  Vulpia microstachys var. ciliata L. P. Janeway 2006-4-30 8566 Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. NAD83. 149 Comment
  CHSC56903  Vulpia microstachys var. pauciflora J. D. Jokerst 1980-6-6 Butte Adjacent to Humboldt Road, 3 mi east of Chico. Comment
  CHSC96561  Vulpia microstachys var. pauciflora L. P. Janeway 2006-4-30 8566 A Butte Cascade Range Foothills. East edge of city of Chico; northwest side of Humboldt Road 2.4 km northeast of Bruce Road. 149 Comment
  UCD94565  Vulpia microstachys var. pauciflora P. B. Kennedy 1929-5-4 s.n. Butte Chico to Paradise. Comment
  HSC39884  Vulpia myuros J. P. Smith 1973-3-22 5924 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 Comment
  CHSC100995  Vulpia myuros var. hirsuta L. P. Janeway 2008-4-2 9247 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  CHSC42076  Vulpia myuros var. hirsuta Curtis Williges 1986-4-12 22 Butte Humboldt Rd., ca. 3.5 mi ene of Chico. 182 Comment
  RSA755359  Vulpia myuros var. hirsuta L. P. Janeway 2008-4-2 9247 Butte Cascade Range Foothills. East edge of City of Chico; slope on north side of Humboldt Road 2.9 km northeast of Bruce Road. 167 Comment
  CHSC23127  Vulpia myuros var. myuros M. S. Taylor 1975-10-29 969 Butte Along Butte Creek, ca. 300 yds s of Humbug Rd, ca. 2 mi e of junc of the Skyway and Humbug Rd. Comment
  CHSC39830  Woodwardia fimbriata Maxey; Jones 1928-4-25 Butte Butte Creek Canyon. Comment
  CHSC52386  Xanthium strumarium R. L. Ondricek-Fallscheer 1982-10-24 159 Butte At edge of a spring, ne side of tip of Flatiron Ridge, ca. 3 1/2 mi wsw of Paradise. 182 Comment
  CHSC31001  Yabea microcarpa M. S. Taylor 1980-4-1 2427 Butte Above Covered Bridge, and s of Butte Creek. Ca. 7 mi e of Chico. 182 Comment
  CHSC97042  Zeltnera muehlenbergii B. Castro; L. P. Janeway 2005-6-5 1480 Butte Ca 6 air mi SE of Chico, in bottom of canyon SE of Neal Rd, ca 100 ft nw of intermittent creek. 85 Comment
  CHSC644  Zeltnera venusta V. Holt 1956-4-9 Butte Humboldt road east of Chico. 396 Comment
  SFV765  Zigadenus fremontii M. L. Vincent 1961-3-29 31 Butte Sacramento Valley 1 mile west of Chico. On Highway to Oroville. 60 Comment



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