Search Results — 2000 specimen records retrieved (1588 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM220653  Abies magnifica H. F. Copeland 1928-8-29 331 Butte Near Jonesville. Summit of Humboldt Road. 2134 Comment
  CHSC94124  Abutilon theophrasti Lowell Ahart 2006-7-4 12912 Butte In an idle rice field, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 29 Comment
  CHSC3465  Acacia decurrens Roger Jaegel 1966-2-15 10 Butte Collected three blocks north from A.J. Hamilton School. Chico. Comment
  SBBG28938  Acer glabrum E. B. Copeland 1930-6-28 Butte Jonesville 2100 Comment
  CHSC43581  Acer macrophyllum Vernon Oswald 1987-4-27 2345 Butte Paradise Lake between the picnic Area and Doon Creek. 777 Comment
  CHSC108830  Acer negundo Lowell Ahart 2012-4-17 17871 Butte On the west side of Gridley Road, about 1/8 mile southeast of the bridge over the Feather River, about 2 miles west of Highway 70. 28 Comment
  CHSC6000  Acer palmatum M. MacArthur 1968-6-19 272 Butte Lawn in front of ADM. bld., near main entrance, Chico State College. 60 Comment
  UC201330  Achillea millefolium A. A. Heller 1917-7-26 12835 Butte open places in the yellow pine forest Butte Meadows 1402 Comment
  POM289125  Achillea millefolium Lyman Benson 3957 Butte First Summit, Oroville-Quincy, Sierra Nevada, Feather River Watershed 1829 Comment
  CHSC109860  Achnatherum lemmonii L. P. Janeway 2012-6-7 10857 Butte Northern High Sierra Nevada. Southwestern end of Rocky Ridge, 0.8 km west of Ponderosa Way/Rim Road, near high-voltage power lines. 895 Comment
  CHSC27659  Achnatherum lemmonii Robert A. Schlising 1978-4-23 3229 Butte Magalia; just S of the Magalia Reservoir (just W of S. T. RR and Coutelenc Road). Comment
  CHSC41351  Achnatherum lemmonii R. A. Schlising; R. Banchero 1980-7-7 3861 Butte E part of country, NE of village of Feather Falls. 1280 Comment
  RSA712918  Achnatherum lemmonii var. lemmonii L. P. Janeway 2006-5-28 8638 Butte Northen High Sierra Nevada, West side of Concow Road about 3.2 mi NE of upper end of Concow Reservoir Comment
  SEINET10663560  Achnatherum occidentale Lowell Ahart, Vernon H. Oswald 1999-7-26 Ahart 8123 Butte T18N, R12E, southwest 1/4 Section 34. On a ridge about 75 yards west of Grouse Ridge Road (Road 14) and about 1/2 mile southwest of the Lookout, about 5.5 miles northeast of Bowman Lake Road (Road 18), about 4.5 miels (air) south of Bowman Lake. 2134 Comment
  CHSC28137  Achyrachaena mollis J. D. Jokerst 1979-5-6 216 Butte N of Rock Creek, 300 m. n of intersection Rock Creek Road and Cohasset Hwy. 106 Comment
  CHSC28476  Acmispon americanus var. americanus Robert Schlising 1979-8-17 3467 Butte Richvale vernal pools. 1/4 mi s of jct hwys 162 to Oroville and 99, along the latter and across from Thermalito Afterbay. Comment
  CHSC97720  Acmispon americanus var. americanus Lowell Ahart 2007-10-31 14518 Butte West of the official parking area, strand of Lake Oroville, Foreman Creek Area, about 1 mile south of Highway 162 (Oroville Quincy Road), about 7 miles (air) northeast of Oroville. 224 Comment
  UCD103793  Acmispon americanus var. americanus L. E. Hazeltine 1916-7-21 s.n. Butte Chico. Comment
  CHSC117000  Acmispon brachycarpus Lowell Ahart 2016-6-4 20921 Butte On the north side of Lumpkin Road, about 100 yards north of McCabe Creek, about 3 miles (air) west of Forbestown. 387 Comment
  CHSC43416  Acmispon brachycarpus Lowell Ahart 1977-4-28 1322 Butte Along the edge of Ponderosa Way, near the Ponderosa Dam, about 4 miles north-west of Forbestown. 457 Comment
  CHSC90520  Acmispon brachycarpus Richard A. Nichols 1980-4-19 10 Butte 1 yd above current shoreline of w branch of Lake Oroville, ca. 500 yds n of Lime Saddle Marina boat ramp. 286 Comment
  UCD103753  Acmispon denticulatus A. A. Heller 1914-5-1 11342 Butte Chico-Hamilton road 6 miles from Chico. Comment
  HSC23345  Acmispon micranthus R. N. Bowman 1971-4-16 11 Butte 11.7 mi. E of Hwy. 70 on Pentz Rd. 91 Comment
  CHSC52673  Aconitum columbianum var. columbianum Kirsten Tarp 1983-8-12 348 Butte NW of Philbrook Reservoir, near streamlet. 1798 Comment
  CHSC69036  Adenocaulon bicolor Lowell Ahart 1997-8-1 7801 Butte On the south side of the County Road, southwest of Keyser Creek, about 1 1/2 miles southest of Bald Mountain, about 6 miles (air) northeast of Stirling City. 1432 Comment
  CHSC12122  Adiantum aleuticum K. O. Grigsby 1972-4-26 1 Butte 4 mi w of Nimshew on Centerville Rd. 15 mi e of Chico on s side of road. 304 Comment
  SEINET10529852  Adiantum capillus-veneris Mary Susan Taylor 1980-4-19 Taylor 2540 Butte S side of Humbug, NE of Centerville. With J.D. Jokerst. 366 Comment
  CHSC31739  Aegilops triuncialis L. Ahart 1976-5-2 1089 Butte Peter Ahart Ranch, Honcut. 45 Comment
  JEPS98705  Aegilops triuncialis Lowell Ahart 2000-5-16 8357 Butte 5 air miles SW of Oroville (Thermalito Afterbay, N side of access road to boat ramp, W of Larkin Road, 1 1/4 mi S of Oroville Airport) 42 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
  CHSC50541  Agoseris aurantiaca Vernon Oswald 1990-7-3 4344 Butte Headwaters of the east branch of Willow Creek, ca. 0.75 mi south of Humbug Summit, ca. 4.75 mi east of Jonesville. 1950 Comment
  CHSC20249  Agoseris heterophylla M. Banning 1969-4-18 61 Butte Junction of Pentz Rd. and Pentz Magalia Rd. 304 Comment
  CHSC39051  Agoseris retrorsa R. A. Schlising; R. Banchero 1981-5-20 4061 Butte Lumpkin Ridge E of Feather Falls and E of Oroville. 1280 Comment
  CHSC42393  Agoseris retrorsa Lowell Ahart 1977-4-28 1328 Butte Near Ponderosa Way, near the Ponderosa Dam, north-west of Forbestown. 365 Comment
  CHSC79442  Agoseris retrorsa G. F. Hrusa 1997-5-1 13715 Butte Northern California, Sierra Nevada. NE side of upper end of Paradise Lake. Where last tributaries from E enter. [Lat./Long. on label is '39 52 N; 121 35 W']. 780 Comment
  CHSC70813  Agrimonia gryposepala B. Castro; H. Durio, L. Gehrung 1995-7-24 590 Butte Ca 1.5 air mi S of Hungry Hunt Oeak, and 1.5 mi E of Hwy 70, ca 0.2 mi S on 'A' Spur off USFS Rd 22N84. 914 Comment
  UC1137063  Agrostis August L. Hormay 1929-8-10 Butte near Graham Mine; Philbrook Comment
  JEPS119956  Agrostis avenacea Lowell Ahart 2012-6-5 18167 Butte North of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC50567  Agrostis capillaris Vernon Oswald 1990-7-9 4357 Butte Paradise Lake, ca. 3 mi north of Magalia. 777 Comment
  CHSC71206  Agrostis exarata Lowell Ahart 1998-6-30 8016 Butte On the west side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  UC1563282  Agrostis exarata Lowell Ahart 1990-9-30 6608 Butte about 1/8 mi ne Canyon Creek Bridge across Lake Oroville (below the high water line of Lake Oroville); Lake Oroville, East Fork of Canyon Creek 243 Comment
  SEINET10789990  Agrostis exarata Lowell Ahart 1988-7-31 Ahart 6152 Butte Spike Bentgrass. On damp soil, around stream rounded boulders, on the east side of West Branch of the Feather River, north of the bridge, about 4 road miles north of Stirling City, Butte County, California. 914 Comment
  CHSC39258  Agrostis hendersonii Lowell Ahart 1983-6-26 4167 Butte Near Bean Creek Road, about 1/4 mile south of Little Bald Rock, about 20 miles north-east of Oroville. 1000 Comment
  CHSC96787  Agrostis hendersonii Lowell Ahart 2007-5-22 13899 Butte Along swales, on Big Bald Rock, about 14 miles (air) northeast of Oroville. 955 Comment
  JEPS98366  Agrostis hendersonii Lowell Ahart 2000-6-27 8515 Butte 12 air miles NE of Oroville (Big Bald Rock, 3 air miles E of Madrone Lake) 993 Comment
  JEPS110248  Agrostis microphylla Lowell Ahart 2006-5-3 12560 Butte On the west side of a small stream, about 50 yards south of the fence, about 1 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 378 Comment
  CHSC59035  Agrostis pallens Lowell Ahart 1992-7-26 6838 Butte On the south side of Coon Hollow, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1737 Comment
  JEPS107519  Agrostis stolonifera Lowell Ahart 2005-7-13 12150 Butte About 20 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/2 miles (air) southwest of Forbestown, about 12 miles (air) east of Oroville 759 Comment
  CAS-BOT-BC138575  Agrostis variabilis A. A. Heller 1914-8-7 11660 Butte At the summit of Jonesville. 2133 Comment
  CHSC104830  Aira caryophyllea Lowell Ahart 2010-6-1 16753 Butte On the south side of the Guardians Trail, about 150 yards east of the end of Centennial, Upper Bidwell Park, about 1/2 mile east of Chico Canyon Road. 125 Comment
  CHSC29993  Aira elegans L. Ahart 1980-4-13 2079 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CDA43078  Albizia julibrissin L. P. Janeway 2011-7-7 10503 Butte Sacramento Valley.; Near edge of water, south side of Feather River just east of Bedrock Park, Oroville. Comment
  CHSC66451  Alisma triviale Vernon H. Oswald; Lowell Ahart 1996-6-10 7764 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Vernally flooded slough near the center of the E side of Tract 5 (W side of dike at the SW corner of Tract 6), Sanctuary I. 30 Comment
  UCD137959  Alisma triviale L. Ahart 1975-7-5 853 Butte North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC116575  Allium amplectens B. Castro; Robin Carter 2016-3-30 2127 Butte Sacramento Valley. CA1.6 air mi E of Hwy 99, 2 mi S of Hwy 162E and 1.5 mi SSW of the Oroville Airport, off N edge of SE ortion of the Thermalito Afterbay, near S end of old Wilbur Road. 44 Comment
  CAS-BOT-BC460739  Allium amplectens A. A. Heller 1914-4-16 11299 Butte In a field near the Plant Introduction Garden, Cico-Centerville road, 2 miles from Chico. Comment
  SEINET3884197  Allium amplectens James L. Reveal 1988-6-3 7005 Butte Paradise, 0.2 mile south of Bennett Road along South Libby Road onto the northern end of Morgan Ridge.; 0 518 Comment
  UCD138465  Allium amplectens L. Ahart 1978-4-13 1634 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC466720  Allium cratericola Freed W. Hoffman 1951-3-19 3771 Butte Table Mountain, 6.2 miles north of Oroville-Chico Highway Comment
  HSC66340  Allium cratericola M. S. Taylor, Jim Jokerst 1980-4-27 2563 Butte Table Mtn. 5 mi. N of Oroville 610 Comment
  CAS-BOT-BC135818  Allium jepsonii B. Castro 1993-7-13 487 Butte Ca 2.5 mi SSW of Big Bar Mtn, on gentle SSE-facing slope on the N side of USFS rd 22N84, on serpentine outcrop which extends for 0.2 mi along the road. 944 Comment
  CHSC62604  Allium jepsonii B. Castro 1993-8-3 491 Butte Ca 1 mi S of Big Bar Mtn, 0.5 mi SE of Hungry Hunt Peak, on USFS Rd 22N83 ca 0.1 mi W of its jcn with Rd 23N28. 1127 Comment
  CHSC36947  Allium obtusum var. conspicuum D. Burk; R. A. Schlising, K. Tharp 1982-6-16 4297 Butte NE part of county, NE of Oroville and Oroville-Quincy Hwy; at corner of Walker Plains. 1554 Comment
  CHSC36950  Allium peninsulare M. S. Taylor 1982-5-2 4391 Butte On n side of Hwy 70 at Pulga bridge, ca. 20 air mi ne of Oroville. 487 Comment
  CHSC40769  Allium peninsulare Lowell Ahart 1985-5-15 5003 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 731 Comment
  CAS-BOT-BC132077  Allium peninsulare var. peninsulare Lowell Ahart 1985-5-15 5003 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  CAS-BOT-BC474066  Allium platycaule A. A. Heller 1915-6-16 12024 Butte Summit of Sierra Nevada above Jonesville 2133 Comment
  UCD118003  Allophyllum divaricatum L. Ahart 1984-6-8 4664 Butte At the Ponderosa Dam, ca. 2 miles NW of Forbestown. 370 Comment
  CHSC35100  Allophyllum integrifolium R. A. Schlising 1980-7-16 3911 Butte NE of Butte Meadows and SW of Jonesville, near Cherry Hill Campground. At Butte Creek streamside. Comment
  CDA40009  Allophyllum integrifolium T. C. Fuller 1962-7-12 9186 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  UCD109998  Alnus rhombifolia Kathy Corson 1969-4-6 17 Butte Big Chico Creek just inside entrance off East 4th Street to Bidwell Park, Chico. Comment
  CHSC49504  Alopecurus aequalis Vernon Oswald; Lowell Ahart 1987-7-1 3060 Butte Lily Pond' located ca. 0.6 mi (air) w of Butte Creek House and 0.25 mi s of Humbug Rd., ca. 2.75 mi (air) se of Jonesville. 1813 Comment
  SEINET237587  Alopecurus carolinianus Carl M. Wick 1986-4-2 Butte 1/2 mile east of Richvale Richvale East/ Erickson Road. Comment
  CHSC8196  Alopecurus saccatus D. McClain 1969-4-18 59 Butte 1/2 mi. n.w. of gate on Table Mountain, 5 mi. s.w. on Cherokee Rd. from its junction with Feather River Highway. 487 Comment
  RSA726362  Amaranthus albus L. Ahart 2007-7-2 14240 Butte East road edge of Oroville Quincey Highway, about one mile south of Big Ridge Road, about 9 miles (air) northeast of Oroville. 363 Comment
  UC204582  Amaranthus albus A. A. Heller 1914-7-20 11579 Butte 8 mi n Oroville Comment
  CHSC51345  Amaranthus californicus Vernon Oswald 1990-8-14 4432 Butte West branch of Lake Oroville, Lime Saddle Recreation Area, Nelson Bar access, near the Lime Saddle Powerhouse. 259 Comment
  JEPS128595  Amaranthus deflexus Lowell Ahart 2017-8-1 21652 Butte Park west of railroad, northeast of the intersection of Virginia Street and Sycamore Street, in Gridley. Comment
  CHSC112628  Amaranthus palmeri Lowell Ahart 2013-10-16 19111 Butte On the west side of Highway 99E, about 20 yards south of B Street, about one mile east of Biggs. 30 Comment
  HSC102798  Amaranthus palmeri L. Ahart 2013-10-16 19111 Butte West side of Hwy. 99E, ~ 1.0 mi. E of Biggs, and ~ 20 yds. south of B Street. 30 Comment
  CHSC38258  Amaranthus retroflexus Vernon Oswald 1983-6-27 769 Butte Upper Bidwell Park, Chico, at the edge of the Horse Arena. Growing in disurbed area along the edge of the parking lot. 79 Comment
  SEINET10906932  Ammannia auriculata Mary Susan Taylor 1978-9-8 Taylor 1889 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. 61 Comment
  HSC97004  Ammannia coccinea L. Ahart 2006-8-5 13084 Butte Peter Ahart Ranch, ca. 1.5 mi. N and 300 yards E of Honcut, ca. 12 mi. S of Oroville. 30 Comment
  JEPS119611  Amsinckia eastwoodiae Lowell Ahart 2012-4-9 17821 Butte Along South Rim Trail, about 100 yards north of the homes, south part of Upper Bidwell Park, about 1/4 mile east of the power lines, about 1 1/4 miles (air) northeast of Chico. Comment
  UC1178253  Amsinckia eastwoodiae Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 680 Butte western section of town near road above the gorge Paradise Comment
  UC1191045  Amsinckia intermedia Francia Chisaki with R. Bacigalupi and G. T. Robbins 1956-4-19 682 Butte near bridge on West Branch of Feather River (on Nelson Bar Road) Comment
  UC725863  Amsinckia intermedia A. A. Heller 1942-4-26 Butte Oregon City Road Comment
  CHSC33135  Amsinckia menziesii J. D. Jokerst 1980-4-17 604 Butte Top of Table Mt, - N of Cherokee Rd. 426 Comment
  CHSC37420  Amsinckia menziesii R. A. Schlising; J. D. Jokerst, R. Banchero 1981-3-22 4004 Butte NW of Oroville and n of Thermalito Forebay, in the Campbell Hills. 106 Comment
  RSA0090974  Amsinckia verna A. A. Heller 1939-3-23 15354 Butte Along the highway near Wick s Corner. Comment
  CHSC65902  Anagallis arvensis Vernon H. Oswald 1996-4-20 7397 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Large population growing on a low levee in formerly irrigated pasture in the S paddock of Tract 7, Sanctuary II. 32 Comment
  SEINET10449591  Anagallis arvensis Mary Susan Taylor 1975-4-26 Taylor 517 Butte Kunkle Reservoir, ca. 500 yds E of Pentz-Magalia Hwy, ca. 1 m SE of Paradise. With Orthocarpus erianthus, Centaurea solstitus, Lupinus bicolor, Typha latifolia. 610 Comment
  CHSC42004  Anaphalis margaritacea Lowell Ahart 1975-9-4 972 Butte Along the South Fork of the Feather River, about 1/2 mile north of Golden Trout Crossing, about 15 miles north of Feather Falls. 762 Comment
  CHSC67154  Ancistrocarphus filagineus James D. Jokerst 1992-4-14 3345 Butte Stone Ridge Ranch survey for Heritage Partners and landowner Jon Bechtel. E of Cohasset Hwy. and Chico Municipal Airport. 91 Comment
  CHSC42570  Angelica californica Vernon Oswald 1985-6-6 1813 Butte Near Centerville Flume 0.5 mi downstream from its crossing on Humbug Rd. 341 Comment
  CDA4907  Anoda cristata var. digitata F. R. Platt 1957-9-27 324 -57 Butte Oroville. 0 Comment
  CAS-BOT-BC84690  Anthemis cotula Helen M. Edwards 1917-6-1 s.n. Butte De Sabla Comment
  CHSC31891  Anthriscus caucalis L. Ahart 1977-5-4 1350 Butte On moist soil in shade of old shearing barn. Peter Ahart Ranch, Honcut. 50 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
  CHSC38683  Antirrhinum cornutum Vernon Oswald 1983-6-3 632 Butte Upper Bidwell Park, Chico, on the north rim overlooking Sycamore Creek Canyon 2000 ft w of the e end of the North Rim Trail. 390 Comment
  UC336555  Antirrhinum cornutum Edw. L. Greene 1890-6-27 Butte Chico Comment
  CHSC43141  Antirrhinum leptaleum R. Banchero; R. Schlising 1980-9-6 331 Butte 0.7 mi ne of the jct of Lumpkin and Forbestown Rd. 493 Comment
  CHSC1685  Antirrhinum vexillo-calyculatum subsp. intermedium E. Walker 1932-7-26 Butte Magalia Heights. 762 Comment
  CHSC63721  Antirrhinum vexillo-calyculatum subsp. intermedium Lowell Ahart 1994-10-16 7564 Butte Along the south side of the dirt road to the Forbestown Reservoir, near Woodleaf Creek, about 3/4 mile south-west of the Forbestown Reservoir Dam, about 2 miles (air) north and 3 1/2 miles east of Forbestown. 762 Comment
  CHSC82406  Aphanes occidentalis Lowell Ahart 2002-5-7 9645 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  CHSC114984  Aphyllon purpureum Lowell Ahart 2015-4-18 20056 Butte About 100 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 miles (air) southwest of Forbestown, about 11 miles (air) eastof Oroville. 752 Comment
  CHSC42440  Aphyllon purpureum Lowell Ahart 1987-5-12 5647 Butte South of Lumpkin Ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CAS-BOT-BC392105  Aquilegia formosa John Thomas Howell 1951-8-19 28156 Butte 2 miles west of Pulga 365 Comment
  POM366932  Aquilegia formosa var. truncata L. Ahart, P. Ahart 1984-6-10 4703 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown. 700 Comment
  UC1594658  Arabidopsis thaliana Vernon H. Oswald and Lowell Ahart 1992-4-8 4896 Butte Trail near abandoned railroad grade in Oroville Dam Recreation Area, on s side of Thermalito Diversion Pool, between spillway and Sycamore Hill Oroville Dam Recreation Area; , Thermalito Diversion Pool 76 Comment
  CAS-BOT-BC167246  Aralia californica Clarence R. Quick 1952-7-1 52 -116 Butte Mill Creek Road between Feather River Highway and Coyote Gap Comment
  CHSC39284  Aralia californica Lowell Ahart 1983-7-24 4214 Butte Small wash at the Forbestown Res., about 5 miles north-east of Forbestown. 450 Comment
  SFV10923  Arbutus menziesii M. L. Vincent 1965-4-14 611 Butte Sierra Nevada Skyway, 1.5 miles north of Magalia. 760 Comment
  UC1950038  Arbutus menziesii Lowell Ahart, Josephine Guardino, Steve Green 2009-2-20 15489 Butte East side of Cedar Grove, Lower Bidwell Park, Chico 67 Comment
  CHSC33970  Arceuthobium abietinum M. S. Taylor; L. Ahart 1981-8-15 4185 Butte N end of Snag Lake, e side of Humbug Rd, ca. 14 mi ne of Stirling City. 1737 Comment
  CHSC45038  Arceuthobium abietinum Lowell Ahart 1988-9-4 6174 Butte Host trees were on both sides of the dirt road, south of a branch of Last Chance Creek, about 1 1/2 air miles south-west of Bald Mountain. 1005 Comment
  RSA774127  Arceuthobium abietinum L. Ahart 2010-9-21 17197 Butte On the west side of the County Road about 1/4 mile north of Jones Meadow, about 2.5 miles (air) southeast of Philbrook Reservoir. 1912 Comment
  CAS-BOT-BC407718  Arceuthobium abietinum Vernon Oswald; Lowell Ahart 1987-7-1 3070 Butte Logging road ca. 2.5 air mi. S of Humbug Summit and 0.25 mi. W of the Butte-Plumas county line, ca. 5.25 miles SE of Jonesville 1999 Comment
  SEINET6630800  Arceuthobium abietinum E. B. Copeland 1930-7-28 Butte Jonesville Comment
  CHSC62509  Arceuthobium campylopodum L. P. Janeway 1993-8-21 4531 Butte Plumas National Forest, LaPorte Ranger District. Southwest end of Watson Ridge; ca 2 mi east of Bald Rock Dome. 1082 Comment
  NY8241  Arctostaphylos A. A. Heller 1928-2-22 14476 Butte About 2 mi below Forest Ranch , lower limit of the Transition Life Zone. In red clay. Comment
  NY9763  Arctostaphylos A. A. Heller 1940-2-19 15500 Butte Neal Road 3 mi W of Paradise near the upper limit of the Upper Sonoran Life Zone Comment
  CAS-BOT-BC24436  Arctostaphylos manzanita J. D. Jokerst; L. Ahart; M. S. Taylor 1983-1-17 1685 Butte Top of North Table Mtn. at its nw. corner. Center of w. edge section 32. Comment
  RSA632987  Arctostaphylos manzanita Jon E. Keeley 1996-6-20 27477 Butte Cohasset. 630 Comment
  UCD51984  Arctostaphylos manzanita John Thomas Howell; Lowell Ahart 1976-4-1 54541 Butte In foothill woodland south of Cherokee on road to Oregon City. Comment
  UCD52250  Arctostaphylos manzanita John Thomas Howell 1976-4-2 51567 Butte In Upper Sonoran Life Zone on volcanic rock; about 2 miles from Paradise on 'Skyway' to Chico. 396 Comment
  CAS-BOT-BC38875  Arctostaphylos manzanita subsp. manzanita Saichi Kawahara 1968-5-4 390 Butte Paradise, James Ripley's property, Graham road. 640 Comment
  CHSC67925  Arctostaphylos manzanita subsp. manzanita James D. Jokerst; L. Ahart, M. S. Taylor 1983-1-17 1682 Butte Top of N. Table Mtn. at its NW corner. Comment
  SBBG128108  Arctostaphylos manzanita subsp. manzanita L. Ahart 2009-11-19 16564 Butte W side of Ten Mi House Rd, just N of Guardians Trail, upper Bidwell Park, ca. 0.25 mi W of intersection of Hwy 32 and Ten Mi House Rd, ca. 10 mi NE of Chico 381 Comment
  CAS-BOT-BC24297  Arctostaphylos mewukka A. A. Heller 1928-2-27 14478 Butte About 2 mi. w. of Forest Ranch. Comment
  UC725989  Arctostaphylos mewukka A. A. Heller 1942-3-1 16383 Butte three mi below Paradise (on Pentz-Magalia road) Comment
  CAS-BOT-BC38554  Arctostaphylos mewukka subsp. truei John Thomas Howell 1976-7-14 51817 Butte Just NE of Pulga Bridge. 417 Comment
  CAS-BOT-BC38571  Arctostaphylos mewukka subsp. truei Walter Knight; Irja Knight 1989-4-17 6480 Butte 2 mi. n. on Coutolenc Road. from junction of skyway. 701 Comment
  CAS-BOT-BC45567  Arctostaphylos nevadensis E. B. Copeland 1931-6-22 672 Butte Jonesville. On ridge e. of the Summit. 2100 Comment
  CAS-BOT-BC46715  Arctostaphylos patula A. A. Heller 1915-6-26 12035 Butte Summit of the Sierra Nevada above Jonesville. 2133 Comment
  UCD51944  Arctostaphylos truei John Thomas Howell 1975-6-15 51094 Butte In Upper Sonoran Zone on volcanic rock, about 2 miles from Paradise on 'Skyway' to Chico, Butte County. 396 Comment
  UCR84523  Arctostaphylos truei J. T. Howell 1976-7-14 51817 Butte Sierra Nevada Mtns, just NE of Pulga Bridge 418 Comment
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Oct 10 2010
  UCD52627  Arctostaphylos viscida R. R. Kehlor 1951-4-14 25 Butte Foothills of Sierra Nevada, 6 1/2 miles east of Oroville, on Mt. Ida Road, Butte County, California. Comment
  SEINET10940282  Arctostaphylos viscida Mary Susan Taylor 1981-2-11 Taylor 3376 Butte T19N R6E sw sec 8. Big Bend quad. E side of Lumpkin Rd, along Macabes Creek, 2 mi n of jct of Lumpkin Rd & Oroville-Quincy Hwy (162), ca. 13 mi ne of Oroville. Riparian Wdlnd; 1500 ft. 457 Comment
  CAS-BOT-BC47373  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51086 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47385  Arctostaphylos viscida subsp. viscida John Thomas Howell 1975-6-15 51096 Butte about 2 miles from Paradise on Skyway to Chico 396 Comment
  CAS-BOT-BC47392  Arctostaphylos viscida subsp. viscida M. S. Taylor; T. Devine; M. Merryman 1981-11-2 3376 Butte Bigi Bend Mt. Quad. East side of Lumpkin Rd., north of Macabes Creek. 91 Comment
  CHSC88618  Arctostaphylos viscida subsp. viscida Linnea Hanson 1985-6-21 275 Butte Plumas National Forest. At Jarbo Gap on Hwy. 70. 731 Comment
  JEPS118321  Arctostaphylos viscida subsp. viscida Lowell Ahart 2011-2-28 17326 Butte West side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 47 Comment
  JEPS119508  Arctostaphylos viscida subsp. viscida Lowell Ahart 2012-3-2 17760 Butte About 200 yards north of Ten Mile House Road, about 200 yards west of Highway 32 about 9 miles northeast Chico. Comment
  UC1174972  Arctostaphylos viscida subsp. viscida P. C. Everett and E. K. Balls 1959-10-20 23908 Butte Hwy 32 9.4 mi ne Chico (toward De Sabla) 792 Comment
  CHSC41391  Arenaria kingii var. glabrescens Lowell Ahart 1986-7-2 5344 Butte West of the dirt road, about 2 miles north-east of Bald Mountain, south of Jones Meadow, about 6 1/2 miles north-east of Stirling City. 1767 Comment
  CHSC78552  Aristida dichotoma Lowell Ahart; Vernon H. Oswald 2000-8-5 8623 Butte Big Bald Rock, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 993 Comment
  JEPS98687  Aristida dichotoma Lowell Ahart 2000-8-5 8624 Butte Above seeps on bare granite, on the north side of Bean Creek Road, about 1/4 mile southeast of Little Bald Rock, about 4 miles (air) northeast of Madrone Lake, about 13 miles (air) northeast of Oroville. 1066 Comment
  RSA0118714  Aristida oligantha L. P. Janeway 2014-9-13 11579 Butte Sacramento Valley. Along the edges of Openshaw Road 0.8 km southeast of its junction with Hwy 149; between Dry Creek and Gold Run (Creek). Starting about here and continuing southeast for at least 1 km. 77 Comment
  RSA129286  Aristida oligantha H. A. Jensen 1933-11-28 367 Butte 2 1/2 miles S. of Wyandolte. Smartsville. 152 Comment
  CAS-BOT-BC400419  Aristolochia californica Carl B. Wolf 1937-3-29 8328 Butte Sacramento Valley, 2 mi. So. of Chico 57 Comment
  CHSC115422  Aristolochia californica Kate Ronan 2013-5-19 Butte Upper Bidwell Park, Wildwood Trail. 89 Comment
  CHSC30863  Aristolochia californica J. D. Jokerst 1979-3-23 1159 Butte Top of North Table Mt., W edge of Mt, immediately N of the waterfalls of the S fork of Coal Cr Canyon. 365 Comment
  RSA416042  Aristolochia californica M. Vincent 1961-3-30 26 Butte Honeyrun road, 1/2 mile west of Paradise 579 Comment
  UC650550  Aristolochia californica Mrs. C. C. Bruce March 1897 1794 Butte Little Chico Comment
  RSA32335  Arnica dealbata Clarence R. Quick 1945-7-17 45 -57 Butte Big Bar Mt Plumas n.7. Comment
  CHSC45627  Arnica discoidea Vernon H. Oswald 1985-6-24 1861 Butte East side of Paradise Lake ca. 0.2 mi N of the parking area. 780 Comment
  UC1562307  Arnica longifolia Vernon Oswald and Lowell Ahart 1990-7-19 4370 Butte ca 3 mi e of, slope on s side of Philbrook Crk, (.8 mi w of the Plumas Co line) Philbrook Reservoir; , Philbrook Creek 1965 Comment
  UC171429  Artemisia douglasiana A. A. Heller 1913-9-12 11135 Butte on Big Chico Creek (Chico) Comment
  UC426979  Artemisia douglasiana E. B. Copeland 1930-7-27 484 Butte Jonesville 1550 Comment
  UC726186  Artemisia douglasiana A. A. Heller 1936-8-16 16178 Butte Pine Rest Paradise, Pine Rest Comment
  SEINET10475951  Asarum hartwegii Mary Susan Taylor 1981-4-14 Taylor 3529 Butte T22N R4E sw sec 12. Pulga SW quad. Mixed Coniferous Forest, loamy soil over rocky base, on Ponderosa Way(Rim Rd) ca. 2 mi N of Jarbo Gap on Hwy 70, ca. 20 air mi N of Oroville. 2900 ft. 884 Comment
  CHSC40363  Asclepias cordifolia Lowell Ahart 1985-6-17 5063 Butte 100 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  JEPS115624  Asclepias cordifolia Lowell Ahart 2009-5-15 15672 Butte About 80 yards west of the dirt road which isTen Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico 271 Comment
  CHSC80750  Asclepias eriocarpa Lowell Ahart 1998-7-18 8043 Butte West of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CDA14078  Asclepias speciosa G. F. Hrusa, T. D. Wilfred 1997-7-3 13961 Butte Sierra Nevada; NE side of upper end of Paradise Lake. Where last tributaries from E enter. Comment
  CHSC102164  Asclepias speciosa Lowell Ahart 2009-6-19 15944 Butte On damp soil, on the east side of Big Chico Creek, southwest of the meadow, about 30 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 209 Comment
  CHSC95052  Asparagus officinalis subsp. officinalis L. P. Janeway 2006-10-4 8903 Butte Sacramento Valley. Oroville Wildlife Area; 150 m east of Feather River, on west bank of narrow slough; 1.7 km south-southeast of the Thermalito Afterbay outlet. 32 Comment
  CAS-BOT-BC99219  Aster M. S. Taylor 1977-11-12 1537 Butte By Big Chico Creek, at end of Upper Bidwell Park, ca. 10 mi e of Chico 304 Comment
  CAS-BOT-BC178463  Astragalus gambelianus Lowell Ahart 1985-5-10 4940 Butte Along the edge of the Cherokee Road, north of where the public parks, about 5 miels north of Oroville. 450 Comment
  CHSC33696  Astragalus gambelianus L. Ahart 1981-4-9 2751 Butte Near North Honcut Creek on Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. 50 Comment
  CAS-BOT-BC192799  Astragalus pauperculus A. A. Heller 1914-4-13 11286 Butte Chico-Oroville road 11 miles from Chico Comment
  CAS-BOT-BC193220  Astragalus tener var. ferrisiae Mrs. C. C. Bruce 1897-4-1 2078 Butte Oroville road Comment
  SEINET10532283  Athyrium filix-femina Mary Susan Taylor 1978-7-19 Taylor 1737 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CHSC36961  Athyrium filix-femina var. cyclosorum M. S. Taylor 1982-8-16 5003 Butte Jct small creek and rd in High Rock Ravine, just s of Discovery Creek, ca. 4 air mi ne of Stirling City. 1463 Comment
  SEINET10970745  Atriplex canescens Lowell Ahart 1991-9-6 Ahart 6713 Butte On the south side of Rutherford Road, south of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles southwest of Gridley. Freshwater Marsh. T17N R1E S13. 30 Comment
  CHSC45554  Atriplex triangularis Lowell Ahart 1981-11-6 3221 Butte Growing along the sides of a deep ditch, near the entrance to the Gray Lodge Waterfowl Management Area, west of Pennington Road, about 12 miles southwest of Gridley. 30 Comment
  UCD56174  Avena barbata A. A. Heller 1914-3-18 11207 Butte 8 miles north of Oroville. Near the western base of Table Mountain. Comment
  JEPS110442  Avena fatua Lowell Ahart 2005-12-11 12515 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  CAS-BOT-BC98759  Baccharis douglasii Lowell Ahart 1981-9-27 3215 Butte Growing on dry dark soil along the edge of a small wash - Palermo 100 Comment
  CAS-BOT-BC98188  Baccharis salicifolia A. A. Heller 1914-3-28 11241 Butte Dry Creek, 12 miles southeast of Chico Comment
  CHSC32582  Bacopa eisenii L. Ahart 1979-9-27 2022 Butte About 1/2 mi w of Honcut along lower Honcut Rd. 33 Comment
  CHSC66361  Bacopa rotundifolia Vernon H. Oswald 1996-6-20 7830 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U. S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. 33 Comment
  CHSC32754  Balsamorhiza deltoidea J. D. Jokerst; R. A. Schlising 1981-4-16 1299 Butte SW of Sweedes Flat Rd, 0.9 mi E of it's junction with Bangor Rd (6 mi E of Oroville). Comment
  UC127843  Balsamorhiza macrolepis Miss Kate Conger 1908-1-1 Butte Brush Creek Comment
  SEINET10448247  Barbarea orthoceras Mary Susan Taylor 1975-8-31 Taylor 892 Butte Riparian Woodland, on Ernies Island in Butte Creek, ca. 50 ft S of Humboldt Rd, ca. 0.5 mi E of Butte Meadows. 1341 Comment
  SEINET10907330  Barbarea orthoceras Mary Susan Taylor 1981-5-14 Taylor 3730 Butte T23N R6E ne/nw sec 19, Pulga SE quad. E side of 23N30.2, along road and ridge, ca. 1 mi SE of Bear Ranch Hill, ca. 2 air mi NW of Four Trees on Oroville-Quincy Hwy. Yellow Pine Forest; 4900 ft. 1493 Comment
  JEPS119501  Bellis perennis Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17820 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  CHSC23662  Berberis aquifolium var. dictyota M. S. Taylor 1976-4-27 1093 Butte On n side of Ponderosa Way, ca. 2 mi e of junc of Villas Rd and Cohasset Hwy, ca. 23 mi ne of Chico. 609 Comment
  CHSC94387  Bergia texana Lowell Ahart 2006-8-5 13083 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville. 30 Comment
  JEPS110451  Bergia texana Lowell Ahart 2006-8-5 13083 Butte On the bottom of a large wash, Peter Ahart Ranch, about 1 1/2 miles north and 300 yards east of Honcut, about 12 miles south of Oroville 30 Comment
  JEPS97414  Bergia texana Lowell Ahart 1995-7-15 7594 Butte Peter Ahart Ranch about 1 1/2 miles north and 3/4 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  CDA42925  Bidens frondosa L. Ahart 2012-9-28 18458 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  CHSC110397  Bidens frondosa Lowell Ahart 2012-9-28 18458 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. 62 Comment
  CAS-BOT-BC102075  Bidens frondosa Lowell Ahart 1983-9-17 4433 Butte At Dunkle Res., near Paradise 600 Comment
  UCD129573  Bidens frondosa E. M. Johnston 1915-1 s.n. Butte Biggs. Comment
  CHSC111169  Bidens tripartita Lowell Ahart 2013-6-18 18802 Butte About 20 yards east of Parking Lot 16, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  JEPS106002  Blennosperma nanum var. nanum Lowell Ahart 2004-4-1 10706 Butte On the margins of vernal pools, on the north side of Nelson Avenue, about 45 yards west of the intersection of 20th Street and Nelson Avenue, Thermalito 53 Comment
  CHSC33707  Boechera arcuata J. D. Jokerst 1981-5-21 1331 Butte Ca 1.0 mi NE of the town of Pulga. Comment
  CAS-BOT-BC16035  Boechera breweri subsp. shastaensis J. D. Jokerst 1979-3-18 0176 Butte Upper rimrock south of Big Chico Creek. Comment
  UCD114350  Boechera breweri subsp. shastaensis R. E. Preston 1982-4-7 235 B Butte S facing cliffs of Cape Horn; ca. 4.5 mi SE of Paradise. 335 Comment
  CAS-BOT-BC14633  Boechera rectissima E. B. Copeland 1929-7-14 367 Butte Jonesville. 1550 Comment
  CHSC11926  Boechera rectissima E. B. Copeland 1929-7-14 367 Butte Jonesville. 1550 Comment
  SEINET10973128  Boisduvalia glabella Mary Susan Taylor 1980-7-6 Taylor 3054 Butte T23N R1E nw sec 20, Richardson Springs quad; ca. 1 mi E of Meridian Rd, ca. 1/4 mi NE of its jct with Hwy 99, ca. 8 mi N of Chico. With R.A. Schlising. 67 Comment
  CAS-BOT-BC28203  Bolboschoenus glaucus Verne Grant; Herbert L. Mason 1956-8-7 12291 Butte Gridley Road north of Butte Sink Comment
  UC600573  Botrychium simplex H. F. Copeland 1931-6-6 Butte Jonesville, below cabin Comment
  RSA121458  Boykinia major P. L. Johannsen 1936-7-17 945 Butte 3 miles SE of Butte Meadows. 1555 Comment
  CDA20151  Boykinia occidentalis B. Smith August 1996 s.n. Butte Plumas National Forest; 1.5 mi S of Feather Falls along Owl Creek. 0 Comment
  CHSC48892  Boykinia occidentalis Vernon Oswald 1985-6-17 1839 Butte Bryant Ravine Rd. at Bryant Ravine Creek, 0.2 mi s of the trailhead to Feather Falls. 746 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
  CHSC38060  Brassica oleracea var. gemmifera R. E. Preston 1982-3-25 198 Butte In a garden in Chico. Comment
  CAS-BOT-BC106322  Brickellia californica A. A. Heller 1923-8-14 13810 Butte Occasional in sand and gravel along Chico Creek at the Hooker Oak swimming pool. Comment
  CHSC31443  Brickellia californica Lowell Ahart 1980-9-10 2631 Butte Ca. 1 mi NE of Millsap Bar, ca 25 mi NE of Oroville. 900 Comment
  CHSC94576  Brickellia californica Lowell Ahart 2006-9-11 13335 Butte Gravel bar, south side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CHSC116975  Briza maxima Matthew Forster 2013-5-14 Butte Oroville Spillway, off Oro Powerhouse Rd., adjacent to Oroville Sspillway. 118 Comment
  SEINET10967591  Briza minor Orme 1980-4-9 Orme 19 Butte Large population, T22N R2E NW1/4 of Sec. 17. 0.8 km on main road through upper Bidwell Park. 1.6 km N of Chico. Found on the edge of a open, rocky field. Soil a loam to sandy loam. 64 Comment
  UCD80420  Brodiaea californica CNPS SN Foothill Team 2005-5-6 SNFN 0159 a Butte City of Chico, Upper Bidwell Park. The stand is about X miles up the road from the gate. 133 Comment
  RSA126001  Brodiaea californica E. K. Balls 1957-5-23 22531 Butte US Hwy 99 E, 1.7 mi NW from jct with road from Pentz. 91 Comment
  POM253053  Brodiaea californica var. californica A. A. Heller 1938-5-22 15106 Butte In fields near Chico Airport. Comment
  SEINET3559684 Image available Brodiaea hyacinthina Lewis S. Rose 1933-5-27 33194 Butte Bangor. 267 Comment
  UC1080383  Brodiaea minor E. K. Balls 1957-5-23 22532 Butte US Hwy 99, 1.7 mi NW from jct with road from Pentz 91 Comment
  CHSC71463  Brodiaea sierrae Lowell Ahart 1998-7-19 8049 Butte On the southeast side of the dirt road to the Forbestown Reservoir, about 1 mile northeast of Forbestown Road, about 2 1/2 miles (air) northeast of Forbestown. 883 Comment
  CDA31579  Bromus carinatus T. C. Fuller 1962-7-12 9181 Butte 2 miles east of Butte Meadows, road to Jonesville, bottomland of Butte Creek 0 Comment
  CAS-BOT-BC149544  Bromus carinatus var. carinatus John Thomas Howell 1951-6-26 27527 Butte Sierra Nevada. Near Pulga. 411 Comment
  CDA31575  Bromus carinatus var. carinatus L. Ahart 2006-7-16 12976 Butte About 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows, west edge of a large wet meadow and bog, about 20 yards east of the poor dirt road, and 100 yards south of the cabin Comment
  CHSC94309  Bromus carinatus var. carinatus Lowell Ahart 2006-7-16 12976 Butte West edge of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  UCD58345  Bromus catharticus R. N. Raynor 1940-4-19 s.n. Butte Gridley. Comment
  CHSC66172  Bromus commutatus Vernon H. Oswald; Lowell Ahart 1996-5-27 7660 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the S side of the levee road at the SW corner of Tract 3.4, Sanctuary II. 32 Comment
  CAS-BOT-BC156027  Bromus diandrus A. A. Heller 1914-4-11 11280 Butte Hills 8 miles north of Oroville. Comment
  CHSC6722  Bromus diandrus B. Anthony 1968-3-25 413 Butte Chico State College Campus, Chico. Comment
  CHSC31946  Bromus hordeaceus J. D. Jokerst 1979-4-20 1211 Butte Top of North Table Mt., ca. .75 mi N of Cherokee Rd. 396 Comment
  JEPS110114  Bromus hordeaceus Lowell Ahart 2006-5-10 12621 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga 354 Comment
  SEINET10507836  Bromus laevipes Lowell Ahart 1985-5-15 Ahart 4987 Butte East of the dirt road, about 1 1/2 miles north-east of Concow Reservoir. north-east of Oroville. Comment
  CAS-BOT-BC162364  Bromus madritensis John Thomas Howell 1961-9-22 36782 Butte Sierra Nevada. Jarbo Gap, Feather River Highway. Comment
  CHSC49701  Bromus madritensis subsp. madritensis Vernon Oswald 1985-4-15 1707 Butte Upper Bidwell Park, Chico, on the north rim at the level of Horseshoe Lake. 152 Comment
  CHSC49516  Bromus racemosus Vernon Oswald 1988-5-18 3318 Butte Honey Run Rd. 0.7 mi sw of the Skyway, Paradise. On the edge of the road. 426 Comment
  CAS-BOT-BC161961  Bromus rubens Lowell Ahart 1962-4-20 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  SEINET10901250  Bromus tectorum Lowell Ahart 1987-5-6 Ahart 5552 Butte On dry sand, on a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC42840  Bulbostylis capillaris Lowell Ahart 1980-7-20 2472 Butte On the top of Big Bald Rock, NE of Oroville. 1005 Comment
  CHSC50851  Calamagrostis canadensis Vernon Oswald 1990-7-23 4382 Butte Meadow at headwaters of the east branch of Willow Creek, ca. 1 mile south of Humbug Summit. Along the northwest edge of the meadow. 1920 Comment
  CHSC59040  Calamagrostis canadensis Lowell Ahart 1992-7-21 6797 Butte On the sides of a snow lake, on the south side of Coon Hollow, about 2 (air) miles north-east of Philbrook Reservoir. 1737 Comment
  CHSC103959  Calandrinia ciliata Lowell Ahart 2010-5-14 16659 A Butte Area of erosion control, Disc Golf Area, about 100 yards west of the entrance to the Disc Golf Area, about 120 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 372 Comment
  CDA35328  Callitriche heterophylla subsp. bolanderi T. C. Fuller 1962-5-17 8720 Butte Highway 99E, 14.5 miles northwest of Chico. 0 Comment
  CHSC42727  Callitriche heterophylla var. bolanderi Lowell Ahart 1987-5-27 5693 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles southeast of Jarbo Gap. 271 Comment
  CHSC65898  Callitriche heterophylla var. bolanderi Vernon H. Oswald 1996-4-20 7410 Butte Sacramento Valley. Sacramento National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. In a drainage at the SW boundary of Tract 3.4, Sanctuary II. 32 Comment
  JEPS95760  Callitriche heterophylla var. heterophylla Lowell Ahart 1995-5-26 7574 Butte 12 mi S of Oroville (Peter Ahart Ranch, 2 mi N and 1/4 mi E of Honcut) 36 Comment
  CHSC114988  Callitriche marginata Lowell Ahart 2015-4-28 20062 -A Butte 50 yards southeast of Parking Lot 1, about 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  CHSC38284  Callitriche marginata Vernon Oswald 1983-4-6 286 Butte Upper Bidwell Park, Chico, in an old road ca. 100 ft s of the n park boundary and ca. 1800 ft e of the junction of Wildwood Ave. and Upper Park Rd. 86 Comment
  SEINET10972756  Callitriche marginata Mary Susan Taylor 1980-3-15 Taylor 2379 A Butte T21N R2E nw sec 36. In Valley Grassland ca. 1/4 mi S of Pentz Road, ca. 1/8 mi E of Hwy 99, ca. 15 mi S of Chico; near large vernal pool. 55 Comment
  CAS-BOT-BC80355  Calocedrus decurrens Lowell Ahart 1967-2-10 s.n. Butte Near Challenge 762 Comment
  CHSC29726  Calochortus albus J. D. Jokerst 1980-4-17 585 Butte Top of North Table Mt, northern tip. 472 Comment
  CAS-BOT-BC487508  Calochortus albus Helen Barden 1941-5-17 s.n. Butte Tributary of west branch of North Fork of Feather River, 4 miles from Yankee Hill Comment
  CAS-BOT-BC487513  Calochortus albus A. A. Heller; H. E. Brown 1902-5-7 5484 Butte Berry Canyon (Near Clear Creek) Comment
  RSA109671  Calochortus albus C. C. Bruce 1897-05 2118 Butte Butte Creek. Comment
  SEINET12044755  Calochortus albus L. S. Rose 1931-1 s.n. Butte Coast Ranges and Sierra Nevada foothills Comment
  SEINET12046117  Calochortus albus Unknown 1978-1 12 Butte Butte Creek Canyon, 3.5 mi up from the Skyway, 300 yd in front of gaging station 122 Comment
  SEINET10971609  Calochortus leichtlinii Mary Susan Taylor 1978-7-18 Taylor 1702 Butte On top of Humboldt Peak, at Humboldt Summit, on Butte-Tehama County line. 2159 Comment
  CHSC34484  Calochortus luteus J. D. Jokerst 1978-5-21 127 Butte 200 met w of Hwy 32 on top of ridge. 365 Comment
  CAS-BOT-BC491853  Calochortus luteus E. B. Copeland 1899-4-1 s.n. Butte Chico Comment
  SBBG57700  Calochortus luteus M. M. Miles -Jun-1886 Butte Butte County [no specific locality] Comment
  SEINET12046805  Calochortus luteus Unknown 1978-1 19 Butte ca 0.5 mi W of jct of Pentz Rd & Pentz Magalia Hwy, ca 1.5 mi SW of West Branch of Feather River 183 Comment
  SEINET12048525  Calochortus luteus S. M. Schulz 1978-1 19 Butte ca 2 mi NE Chico on Humboldt Rd, ca 5 yds S of road 76 Comment
  SEINET12048534  Calochortus luteus Unknown 1984-1 11 Butte ca 9 mi NE Chico and 100 yds N Big Chico Creek 206 Comment
  CHSC2832  Calochortus monophyllus David Prall 1965-4-16 21 Butte Growing along Helltown Canyon Rd. 1 mile north from Humbug Rd. 228 Comment
  CHSC90084  Calochortus monophyllus Ross Rowland 2001-3-28 12 Butte At the end of Keffer Lane; 1/4 mile north of Skyway in Paradise. 493 Comment
  SEINET7067153  Calochortus monophyllus A. G. Vestal 1947-4-30 s.n. Butte Along the road to Cherokee. Coordinate datum: NAD27. UTM Zone 10, 626283mE, 4388764mN. Comment
  HSC43135  Calochortus monophyllus Maralyn O'Meara 1974-4-20 284 Butte Cherokee-Table Mtn. Rd., 1 mi. S of Cherokee 305 Comment
  CHSC76967  Calochortus tolmiei Margie Collins 1894-4-1 Butte Forbestown. Comment
  UC843673  Calochortus tolmiei A. A. Heller 1938-4-23 15055 Butte about 20 mi from Oroville (along the Feather River Highway near the Yankee Hill road) Comment
  CHSC105802  Caltha leptosepala Lowell Ahart 2010-9-28 17266 Butte On the south edge of a 10 acre meadow, about 100 yards east of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  RSA255537  Calycadenia ciliosa Gerald D. Carr 1971-6-15 563 Butte 0.4 miles west of east boundary of Upper Bidwell Park, southeast of Chico Comment
  CHSC26662  Calycadenia fremontii Howard Wurlitzer; M. Hayes, K. Stern, R. Schlising 1968-5-20 89 Butte 1/10 mi N of 'Dead Man's Waterhole', Vina Plains, along N bank of Pine Creek. 57 Comment
  CAS-BOT-BC273293  Calycadenia fremontii H. M. Hall 1930-8-11 12875 Butte Humboldt Road, 8.2 miles from Chico 381 Comment
  UC1971740  Calycadenia fremontii R. L. Carr 1981-5-23 2231 Butte Near (W) of Hwy 99, ca. 10 mi NW of Chico and ca. 1/2 mi S of Broyles Road Comment
  CAS-BOT-BC270009  Calycadenia multiglandulosa Lowell Ahart 1976-11-12 s.n. Butte Peter Ahart Ranch, Honcut Comment
  SEINET11842848  Calycadenia multiglandulosa subsp. bicolor L. Ahart, Ahart, P. 1984-1 4687 Butte ca 1 mi SE of Hurleton, 1/12 mi E of Oak Grove Cemetery, ca 10 mi E of Oroville 500 Comment
  CAS-BOT-BC106081  Calycadenia oppositifolia John Thomas Howell 1951-6-26 27513 Butte Feather River Canyon, Sierra Nevada 213 Comment
  RSA788204  Calycadenia oppositifolia R. L. Carr 1978-7-7 789 Butte NE of Chico, ca. 0.3 mi SW of N boundary of Upper Bidwell Park (Devil's Kitchen), ca. 5.6 mi NE of Manzanita Ave on Upper Bidwell Canyon Rd via Wildwood Ave, 100 yds NW of rd. 244 Comment
  SEINET10473678  Calycadenia oppositifolia Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4086 Butte T21N R5E sec 31. Along Bloomer Hill Rd, ca. 1.3 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 450 m. 450 Comment
  CHSC28496  Calycadenia truncata M. S. Taylor 1979-7-22 2166 Butte Pulga bridge, on N side of trail leading from NE side of Pulga bridge over Hwy 70, ca. 27 mi N of Oroville. 487 Comment
  CHSC43200  Calycadenia truncata Robert Banchero 1981-6-29 548 Butte Ca 2.2 air mi W of Pulga. Comment
  CHSC69445  Calycadenia truncata Lowell Ahart 1997-9-6 7887 A Butte Near the McNab Cypress grove, near the steel tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  SEINET10475219  Calycadenia truncata subsp. scabrella Mary Susan Taylor 1979-6-22 Taylor 2166 Butte T22N R5E sw 1/4 sec 32. Pulga bridge on Hwy 70, on N side of trail leading from NE side of the bridge, ca. 27 mi N of Oroville; serpentine soils. 488 Comment
  CAS-BOT-BC275385  Calycadenia truncata var. truncata John Thomas Howell 1959-9-20 34693 Butte 9 miles NE of Oroville on Feather River Highway Comment
  CHSC39298  Calyptridium monospermum Lowell Ahart 1983-7-29 4247 Butte Along the edge of the dirt road, about 2 miles east of Milsap Bar, about 25 miles north-east of Oroville. 900 Comment
  JEPS121940  Calyptridium monospermum Lowell Ahart 2014-7-7 19604 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC69112  Calyptridium umbellatum Lowell Ahart 1997-8-1 7789 Butte Around rocks, near some small streamlets of Little Kimshew Creek, in Snow Meadow, about 1/4 mile east of Table Mountain, about 8 miles (air) northeast of Stirling City. 1524 Comment
  CHSC95085  Calystegia atriplicifolia subsp. buttensis L. P. Janeway 2006-6-25 8704 Butte High Cascade Range. Along Cohasset Ridge and Cohasset Road about 0.5 km southwest of Anderson Mill site and about 5.9 air km north-northeast of Cohasset. 1128 Comment
  JEPS47865  Calystegia atriplicifolia subsp. buttensis A. A. Heller 1913-6-7 10789 Butte near Stirling; near Stirling 1036 Comment
  RSA0104578  Calystegia atriplicifolia subsp. buttensis Sandra M. Namoff 2012-7-26 66 Butte NE of Chico, 2.4 air miles NE of Forest Ranch, 0.63 [miles] from Hwy 32 on Headwater Road. 951 Comment
  UC1586576  Calystegia atriplicifolia subsp. buttensis Vernon H. Oswald and Lowell Ahart 1991-6-5 4654 Butte ca 0.5 miles west of Highway 32 on logging road 200-G ca 1 mile north of Platte Mtn Lookout between Forest Ranch and Lomo. Comment
  CHSC46784  Calystegia occidentalis R. A. Schlising 1983-6-9 4424 Butte Along Hwy 32, 0,8 miles S of Nopel Road crossroad in Forest Ranch. Comment
  SEINET267151  Calystegia occidentalis subsp. fulcrata T. A. Ranker, P. G. Trapp 1994-6-17 1614 Butte Pence Road south of Paradise. 395 Comment
  RSA718780  Calystegia occidentalis subsp. occidentalis L. P. Janeway 2006-7-9 8806 Butte 150 m west of Hwy 32, 3.0 km south of Humboldt Road (Lomo); near top of ridge between Big Chico Creek and West Branch Butte Creek. 1140 Comment
  CAS-BOT-BC496965  Camassia leichtlinii subsp. suksdorfii Lowell Ahart 1982-6-1 3528 Butte A little south of the intersection of Black Bart Road and Forbestown Road, west of Forbestown 750 Comment
  RSA69294  Camassia leichtlinii subsp. suksdorfii Frank W. Peirson 1926-6-21 6768 Butte Butte Meadow, Humboldt Road. Comment
  UC426977  Campanula prenanthoides E. B. Copeland 1930-8-4 482 Butte Jonesville 1500 Comment
  SEINET10463037  Campanula prenanthoides C. A. Purpus Purpus 5656 Butte Wet meadows, Farewll Gap 1219 Comment
  CHSC38043  Capsella bursa-pastoris R. E. Preston 1983-1-9 373 Butte At roadside; w side of the Midway, 200 yds. n of Butte Creek, ca. 3 mi sse of Durham. 39 Comment
  CHSC35761  Cardamine breweri R. E. Preston 1982-6-18 303 Butte At stream margin; site of Merrimac, ca. 22 mi ne of Oroville. 1173 Comment
  CHSC3875  Cardamine californica Gerry Carrauthers 1966-2-28 34 Butte Upper Bidwell Park ca. 4 mi N.E. of Bidwell Golf Course. Ca. 9 mi N.E. of the city of Chico. Comment
  RSA0116210  Cardamine californica Mrs. R. M. Austin 1883-04 21 Butte Little Chico Creek. Comment
  CAS-BOT-BC37874  Cardamine oligosperma Peter H. Raven 1954-4-17 6614 Butte Along Feather River, Oroville. Comment
  CHSC10623  Cardamine oligosperma Lowell Ahart 1967-3-30 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC39612  Cardamine oligosperma Lowell Ahart 1983-3-28 3910 Butte Found on the east bank of Woodleaf Creek, above the road, about 3/8 mile south-west of the Forbestown Res., about 4 miles north-east of Forbestown. 450 Comment
  CHSC34522  Cardamine pachystigma var. dissectifolia R. E. Preston 1981-2-28 45 Butte Ca. 50 m e of Coutelenc Rd, ca. 320 m n of its jct with the Skyway, Magalia. 700 Comment
  CDA34282  Cardaria chalepensis L. Ahart 2009-4-2 15520 Butte On the east side of Highway 99, about 1 mile south of Gridley. Comment
  CAS-BOT-BC282963  Carduus pycnocephalus Lowell Ahart 1979-6-2 s.n. Butte Peter Ahart Ranch, Honcut, banks of N Honcut Creek 50 Comment
  JEPS120951  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2013-4-20 18548 Butte Wilson Creek, about 40 yards SW of the oak trees, about 1/2 mile N of the barn, about 3/4 mile N of the Honcut Cemetery, about 3.75 air miles NE of Honcut. Comment
  SBBG128736  Carex L. Ahart 2012-6-14 18190 Butte lawn, on S side of path, SW of CARD Community Center, Lower Bidwell Park, 62 Comment
  SEINET260322  Carex Lowell Ahart 1988-4-15 5960 Butte P. Ahart Ranch ca 1.5 mi N and 1 mi E of Honcut ca 12 mi S of Oroville 37 Comment
  CHSC113409  Carex abrupta Lowell Ahart 2014-7-10 19636 Butte About 80 yards south of Philbrook Road, about 1 1/4 miles west of Philbrook Reservoir. 1648 Comment
  SEINET10585935  Carex abrupta Lawrence P. Janeway, Robert A. Schlising 1988-7-16 Janeway 3020 Butte The Carices of Butte county. T26N, R5E, Jonesville quad (15") NW1/4 of sec 21. Along Willow Cr, 1 mile W of Humbug Rd. On dry disturbed forest floor (Jeffery pine and white fir). With C. integra, C. fracta, C, jepsonii. 1798 Comment
  CHSC38071  Carex aurea R. E. Preston 1982-6-25 319 Butte Ca. 1.2 mi S of Inskip. 1420 Comment
  CHSC43913  Carex barbarae L. P. Janeway 1987-5-7 2027 Butte Along Coal Cyn Rd 1.8 mi NE of hwy 70 and just past the drive to Coal Cyn Power Plant. Adj to mdw and Rubus riparian area at penstock. 160 Comment
  CHSC104847  Carex bolanderi Lowell Ahart 2010-6-12 16796 Butte Along the north side of a small stream, about 150 yards east of Ten Mile House Road, about 3/4mile (air) west of Highway 32, about 9 miles (air) northeast of Chico. 238 Comment
  CHSC52274  Carex bolanderi L. P. Janeway 1988-7-2 2951 Butte Marsh/meadow at upper reach of Brush Creek, ca 1.5 mi S of 'town' of Brush Creek. 952 Comment
  SEINET10706540  Carex bolanderi Lawrence P. Janeway, Robert A. Schlising 1988-7-16 Janeway 3018 Butte T26N, R5E, Jonesville Quad (15'), NW 1/4 of sec 21. Along Willow Creek, 1 mile west of Humbug Road. Small open sedge-dominated moist meadow above the creek. With C. heteroneura, C. lemmonii, C. subfusca. In forest of Jeffrey Pine and White Fir. 1798 Comment
  CHSC33768  Carex brainerdii J. D. Jokerst; R. A. Schlising, B. Banchero 1980-6-16 853 Butte Ca 50 meters N of Humboldt Rd at a point 1.9 mi. N of its junction with Hwy 32. Comment
  CHSC41355  Carex brainerdii R. A. Schlising 1983-6-9 4421 Butte N part of county NE of Lomo along Humboldt Road; Carpenter Ridge. 1341 Comment
  JEPS108149  Carex brainerdii L. P. Janeway 2005-5-29 8406 Butte Northern High Sierra Nevada. Top of south end of Granite Ridge (between Rock Creek and Camp Creek), about 2.3 km south of Kimshew Point. On southeast-facing side of ridge top 1317 Comment
  JEPS121376 Image available Carex cyrtostachya P. F. Zika, B. Wilson, L. Ahart, L. Janeway 2011-8-5 25715 Butte Forest Road 20N03 (Moreville Ridge Road), 2 air miles SE of Sugar Pine Point, Pinkard Creek drainage, W northern Sierra Nevada Highlands (n SNH). Comment
  CHSC102834  Carex densa Lowell Ahart 2009-6-3 15818 Butte About 100 yards west of the table at the old homestead and about 50 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 232 Comment
  CHSC50350  Carex echinata subsp. echinata Vernon Oswald 1990-5-14 4209 Butte Small lake located ca. 1 mile south of Brush Creek. 996 Comment
  CHSC52865  Carex echinata subsp. echinata L. P. Janeway 1988-7-29 3124 Butte Meadow near Humbug Summit Rd, 1.5 mi NE of the Snag Lake dam. 1767 Comment
  CAS-BOT-BC75503  Carex echinata var. ormantha F. N. Bassett 1923-6-21 s.n. Butte Jonesville via Butte Meadows. Comment
  CHSC40661  Carex feta J. D. Jokerst 1984-5-19 2025 Butte Perennial seepage along the edge of Highway 70 directly across from a roadside rest area along a small dirt road that parallels Hwy 70. Comment
  SEINET10650513  Carex feta Lowell Ahart 1987-5-6 Ahart 5544 Butte On damp to dry sand, along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC43115  Carex fracta L. P. Janeway 1986-9-1 1837 Butte NE-facing slope above Philbrook Reservoir. 1767 Comment
  CHSC44292  Carex fracta Vernon Oswald 1988-6-20 3408 Butte East of Humboldt Rd. 1.4 mi ne of Lomo. Along the edge of the W. Branch of Butte Creek at the bottom of a ravine. 1292 Comment
  JEPS115995  Carex fracta Lowell Ahart 2009-6-3 15826 Butte By a small wash, about 130 yards south of the fence and about 120 yards east of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 279 Comment
  SEINET11310005 Image available Carex fracta Unknown 2009-1 24616 Butte Above Humboldt Road, c. 2 air km S of Humboldt Summit, Cascade Range Highlands (CaRH). Comment
  CAS-BOT-BC28378  Carex gracilior Lowell Ahart 1982-5-28 3441 Butte Near North Honcut Creek, N of the Peter Ahart Ranch, ca 1.5 mi N and 3 mi E of Honcut. 50 Comment
  JEPS104626  Carex gracilior Lowell Ahart 2000-5-18 8374 Butte On the bottom of the Clay Pit, near the cottonwood trees, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) sothwest of Oroville. 36 Comment
  SEINET7560147 Image available Carex gracilior Unknown 2003-5-8 7782 Butte Richardson Springs 7.5' quad. Sacramento Valley. North end of Chico, along Sycamore Creek 160 m west of Cohasset Road bridge. 56 Comment
  CHSC105960  Carex integra Lowell Ahart 2010-9-28 17271 Butte About 20 yards west of Big Kimshew Creek, meadow, about 100 yards east of the poor dirt road, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1886 Comment
  JEPS121937  Carex integra Lowell Ahart 2014-7-7 19592 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  RSA0119041  Carex integra Lowell Ahart 2014-7-7 19592 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1665 Comment
  SEINET10709999  Carex integra A. Arthur Heller 1928-6-16 Heller 14613 Butte Damp, grassy places in the Yellow Pine Forest at Butte Meadows. Comment
  CHSC102215  Carex inversa L. P. Janeway 2009-11-16 9967 Butte Sacramento Valley. Oroville: south side of Broderick Street between Pine Street and Elma Street. At edges of old lawn between the two buildings of the Chinese Temple and Museum. 44 Comment
  SEINET12649502 Image available Carex inversa Peter F. Zika 2010-1 24827 Butte 65 Comment
  SEINET4286003 Image available Carex laeviculmis L. Janeway, Gog, L 2008-1 3189 C Butte Near Cornelia Lott Sank Memorial Spring Comment
  JEPS105281  Carex lemmonii Dean W. Taylor 1995-8-6 15394 Butte 5 air mi NE of Stirling City; boggy meadow 0.5 mi E of Bald Mountain summit; Lassen National Forest; Sierra Nevada 1706 Comment
  CAS-BOT-BC32158  Carex multicaulis L. P. Janeway; Robert A. Schlising; B. Castro; Pauleen Broyles 1987-7-19 2493 Butte Butte Meadows quad. Near Humbug summit Rd ca 5.5 mi N of Inskip, 1539 Comment
  CHSC97375  Carex multicaulis Paul Maslin 2006-4-15 45 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10609796E 4410665N. 243 Comment
  CAS-BOT-BC94041  Carex pendula Peter F. Zika 2010-5-16 24824 Butte shores of Comanche Creek, both sides of channel and bridge, junction of Breslauer Ave. and Lone Pine Ave., SW of Chico 45 Comment
  UCR228226  Carex pendula Peter F. Zika 2010-5-16 24824 Butte Sacramento Valley, Janeway's station, Comanche Creek, both sides of channel and bridge, junction of Breslauer Avenue and Lone Pine Avenue, southwest of Chico 45 Comment
  CHSC65783  Carex praegracilis Vernon H. Oswald 1996-4-10 7347 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Sacramento Valley. On the S side of the ranch road at the N end of Tract 7.2, Sanctuary 1. 33 Comment
  CHSC77823  Carex praegracilis Lowell Ahart 2000-4-27 8330 Butte On the cut bank on the west side of Pennington Road, about 400 feet north of Rutherford Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC48542  Carex rossii L. P. Janeway; R. A. Schlising 1988-7-16 3009 Butte Along Colby Mountain Rd, 1/4 mi N of Jonesville. 1554 Comment
  CAS-BOT-BC117391  Carex senta A. S. Crafts 1976-4-12 s.n. Butte Peter Ahart Ranch, Honcut. 150 Comment
  CHSC44127  Carex specifica V. Oswald; L. Ahart 1988-7-26 3630 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. At the base of a cliff along the north brow of a ridge running eastwards from Snow Mt. 2072 Comment
  CHSC49852  Carex specifica L. P. Janeway 1986-9-1 1833 Butte Northeast-facing slope above Philbrook Reservoir. 1798 Comment
  SEINET10749866  Carex straminiformis A. Arthur Heller 1928-7-10 Heller 14620 a Butte Wet meadows at Butte Meadows in the Yellow pine belt. Comment
  CHSC106159  Carex subfusca Peter F. Zika 2009-6-17 24508 Butte Cascade Range Highlands (CaRH), SE side of Concow Road at south end of Concow Reservoir, 3.7 road miles N of Route 70. 640 Comment
  JEPS120138  Carex subfusca Lowell Ahart 2012-5-17 18085 Butte On both sides of horse trail, 10 to 50 feet north of the poor dirt road, about 100 feet south of Larch, south of Vallombrosa Avenue, Lower Bidwell Park, Chico. Comment
  SD472  Carex subfusca E. B. Copeland 1929-7-20 Butte Jonesville; in woods by Jones Creek; forming tufts, sometimes large. 1500 Comment
  CAS-BOT-BC116734  Carex subfusca Clarence Roy Quick 1963-7-16 63 51 a Butte Section Corner Meadow, E of Pilga, Feather River Canyon. 1463 Comment
  UCD141165  Carex subfusca L. P. Janeway 1988-6-19 2834 Butte 3.1 miles north of Stirling City towards Inskip along logging road 0.2 mile west of Skyway. 1219 Comment
  CHSC52360  Carex vesicaria L. P. Janeway; R. A. Schlising, B. Castro, F. Jay Fuller 1988-7-11 2987 Butte Crane Valley (upper Big Kimshew Cr). 1569 Comment
  SEINET10785807  Carex xerophila John Thomas Howell 1967-6-22 Howell 42605 Butte Magalia. On serpentine. 701 Comment
  SEINET10931253  Castilleja Mary Susan Taylor 1976-4-4 Taylor 1064 Butte Yellow Pine Forest, ca. 2-5 mi W of junction of Ponderosa Way and Hwy 32, ca. 2-10 ft N and S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata, Calochortus monophyllus. 488 Comment
  CAS-BOT-BC249114  Castilleja affinis A. A. Heller 1919-4-12 13101 Butte Cherokee Mine Comment
  CHSC2932  Castilleja affinis W. Fitzwater 1958-4-19 Butte Humbolt Rd. Comment
  CHSC57514  Castilleja affinis Heather L. David 1990-4-24 57 Butte Ca. 0.7 mi ne of intersection of Coutolenc Rd. and Skyway, ca. 16 mi ne of Chico/ 701 Comment
  CHSC67389  Castilleja affinis James D. Jokerst; R. A. Schlising 1985-4-8 2225 Butte Feather River Serpentine near Hwy. 70 on unnamed road ca. 0.25 mi N of Parkhill Rd., ca. 50 m E of BM 2089. 579 Comment
  CHSC115360  Castilleja affinis subsp. affinis Lowell Ahart 2015-3-21 19956 Butte Steep east road cut, along Oregon Gluch Road, about one mile south of Oregon City, about 4 1/2 miles north of the intersection of Cherokee Road and Oregon Gulch Road, about 8 miles north of Oroville. 308 Comment
  CHSC34079  Castilleja applegatei subsp. pinetorum M. S. Taylor 1981-4-5 3484 Butte E side of Dark Canyon Rd, 2.2 mi s of its jct with Big Bend jct, ca. 3 air mi s of Jarbo Gap on Hwy 70. 426 Comment
  CHSC50843  Castilleja arachnoidea Vernon Oswald; Lowell Ahart 1990-7-19 4367 Butte Slope on the south side of Philbrook Creek, ca. 3 mi east of Philbrook Reservoir, ca. 0.4 mi west of the Plumas County line. 2011 Comment
  CHSC114981  Castilleja attenuata Lowell Ahart 2015-4-18 20043 Butte On the east side of Swedes Flat Road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC4178  Castilleja attenuata Kathy Sommarstrom 1967-3-25 5 Butte Found in Bidwell Park, 1 mi east of Golf course to the left side of the road. 76 Comment
  CHSC50062  Castilleja attenuata Lowell Ahart 1990-4-15 6453 Butte Valley Tassels. Below the high water line of Lake Oroville, east ot the Enterprise Boat Launch Area, about 1/8 mile north-west of the Enterprise Bridge across Lake Oroville. 295 Comment
  UCD80772  Castilleja attenuata CNPS SN Foothill Team 2006-4-19 SNNR 0744 Butte City of Chico, Upper Bidwell Park. 156 Comment
  UCD122342  Castilleja campestris L. Ahart 1970-4-4 36 Butte Peter Ahart Ranch, near Honcut. 45 Comment
  CHSC43167  Castilleja exserta Douglas Rand 1978-4-12 17 Butte Ca. 2.5 mi se of Municipal Airport and 1 mi nw of Pleasant Valley High School. 60 Comment
  CHSC9268  Castilleja exserta D. C. Burns 1971-4-4 120 Butte Ca. 20 yds. e of highway 70, ca. 7 mi n of Oroville. 82 Comment
  CHSC115264  Castilleja lacera Lowell Ahart 2015-5-27 20193 Butte In a small dry meadow, about 100 yards south of the intersection of Forbestown Road and Black Bart Road, about 3 miles (air) southwest of Forbestown, about 11 miles (air) east of Oroville. 752 Comment
  CHSC43193  Castilleja lacera R. A. Schlising 1981-4-27 4042 Butte S of Cohasset. Immediate roadside of Cohasset hwy, 2.9 mi NE jct with road to Richardson Springs. 201 Comment
  CHSC11901  Castilleja miniata E. B. Copeland 1929-7-25 467 Butte Jonesville. 1500 Comment
  LA209237  Castilleja miniata E. B. Copeland; 1929-7-25 Butte Jonesville 1500.0 Comment
  JEPS89031  Castilleja rubicundula subsp. rubicundula A. A. Heller and H. E. Brown 1914-5-8 Butte near Clear Creek (Berry Canyon); Berry Canyon Comment
  CHSC12148  Castilleja subinclusa R. A. Petersen 1973-4-29 20 Butte Located 7.2 mi e of Chico City limits s of Hwy. 32. 426 Comment
  POM43182  Castilleja subinclusa C. C. Bruce 1897-05 1939 Butte Little Chico. Comment
  CHSC58960  Castilleja tenuis Lowell Ahart 1992-7-29 6883 Butte About 1 mile north-east of the Carr Mine, about 3/4 mile north-west of Lotts Lake. 1798 Comment
  UC532168  Castilleja tenuis Herbert F. Copeland 1934-7-9 Butte edge of Butte Creek Meadows (Jonesville Region); Jonesville Region Comment
  CAS-BOT-BC48548  Ceanothus cordulatus E. B. Copeland 1929-7-14 382 Butte Jonesville 1550 Comment
  UC600529  Ceanothus cordulatus H. F. Copeland 1927-9-2 Butte Jonesville Comment
  SEINET10493626  Ceanothus cuneatus Lowell Ahart 1985-3-4 Ahart 4845 Butte On red rocky soil near Kunkle Res., about 2 miles south of Paradise. Comment
  CHSC100969  Ceanothus cuneatus var. cuneatus Lowell Ahart; Josephine Guardino, Steve Green 2009-2-20 15486 Butte On a ridge about 300 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 354 Comment
  UC177593  Ceanothus cuneatus var. cuneatus H. M. Hall 1914-8-2 9831 Butte foothills near Bidwell Bar (near Mt. Ida Ranch), Sierra Nevada Mts. Comment
  CHSC46798  Ceanothus diversifolius R. A. Schlising; P. Broyles 1988-7-9 4576 Butte E of Paradise and Magalia, and N of Oroville and Jarboe Gap; along Rim road. 792 Comment
  CAS-BOT-BC50819  Ceanothus integerrimus A. A. Heller 1914-4-16 11293 Butte Chico-Centerville Road 8 miles from Chico, on the slopes albong Butte Creek Comment
  CAS-BOT-BC50821  Ceanothus integerrimus John Thomas Howell 1975-6-15 51116 Butte Sierra Nevada - Paradise - skyway near Billie Road 609 Comment
  LA43617  Ceanothus integerrimus E. B. Copeland; 1929-7-14 sn Butte Jonesville 502 Comment
  UC600527  Ceanothus integerrimus H. F. Copeland 1930-7-26 Butte Jonesville Comment
  CAS-BOT-BC50713  Ceanothus integerrimus var. macrothyrsus Lowell Ahart 1980-9-10 2645 Butte Sierra Nevada - 7 miles east of Milsap Bar 1200 Comment
  RSA15055  Ceanothus integerrimus var. macrothyrsus Daniel Cleveland 1882-07 s.n. Butte Sultant House. Comment
  CAS-BOT-BC51728  Ceanothus lemmonii A. A. Heller 1914-5-18 11371 Butte Forest Ranch, West slope fo the Sierra near Forest Ranch 822 Comment
  CHSC30308  Ceanothus lemmonii M. S. Taylor 1980-5-27 2736 Butte On n side of Bald Rock Rd, ca. 0.5 mi e of Big Bald Rock, ca. 4 mi e of Lake Madrone. 975 Comment
  CAS-BOT-BC52002  Ceanothus prostratus A. A. Heller 1915-6-11 11971 Butte Chico Meadows in the Sierra Nevada 1219 Comment
  CHSC52465  Ceanothus prostratus Patricia Causey 1979-4-20 16 Butte Scattered population ca 1 mi SE of Forest Ranch; W base of Doe Mill Ridge, 5 ft E of Doe Mill Rd. 731 Comment
  POM193369  Ceanothus prostratus E. B. Copeland 1930-7-7 425 Butte Joneville. 488 Comment
  CAS-BOT-BC52016  Ceanothus prostratus H. D. Thiers 1969-6-8 23444 Butte Forest Service road between McCloud and Dunsmuir, about 8 miles from Dunsmuir 1371 Comment
  POM181716  Ceanothus velutinus H. F. Copeland 1927-9-3 194 Butte Jonesville. Comment
  JEPS120143  Cedrus deodara Lowell Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-10 18023 Butte On the north side of Big Chico Creek, on the south side of the paved park road, south of the old walnut orchard, south of Vallombrosa Avenue, about 1/10 miles west of Peterson Drive, Lower Bidwell Park, Chico. Comment
  UC2026879  Celtis australis Lowell Ahart, Susan Bazell, Josephine Guardino, Wes Dempsey 2012-7-5 18264 Butte Cedar Grove, parking area, Lower Bidwell Park, Chico. Comment
  RSA755755  Centaurea melitensis L. Ahart 2009-5-23 15769 Butte About 200 yards southwest of Pine Trail, Upper Bidwell park, about 1/3 air mile southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 382 Comment
  CAS-BOT-BC284502  Centaurea solstitialis Sally Bianco 1995-11-9 1052 Butte NE edge of Concow Lake, 13199 Concow Road Oroville 670 Comment
  RSA755414  Centaurea solstitialis L. Ahart 2009-6-30 15953 Butte Open area west of the Guardian Rock Trail, about 120 yards north of the Pine Trail, about 3/8 air mile southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 399 Comment
  CAS-BOT-BC284506  Centaurea solstitialis John Thomas Howell 1959-9-20 34677 Butte Eastern outskirts of Oroville, Sierra Nevada 60 Comment
  RSA302608  Centaurea solstitialis J. R. Shevock 1972-5-19 1763 Butte North of Oroville 61 Comment
  CHSC28481  Centaurium tenuiflorum Robert Schlising 1979-8-17 3468 Butte 1/4 mi s jct Hwys 162 to Oroville and 99; along the latter and across from Thermalito Afterbay; widespread at ditch margins but not in grassland. Comment
  JEPS127004  Centaurium tenuiflorum Lowell Ahart 2016-5-24 20844 Butte About 200 yards west of Loma Rica, about 250 yards southwest of the intersection of Loma Rica Road and La Porte Road, about 3 1/2 miles (air) northeast of Honcut. Comment
  CHSC45958  Centunculus minimus Lowell Ahart 1975-6-19 795 Butte Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  CAS-BOT-BC222893  Cephalanthus occidentalis A. A. Heller 1914-7-14 11574 Butte Canon [Canyon] of Big Chico Creek. On streams bordering the Sacramento Valley Comment
  SEINET10500789  Cephalanthus occidentalis var. californicus Mary Susan Taylor 1980-8-30 Taylor 3324 Butte T20N R4E nw border sec 23, Oroville Dam quad. E Table Mt, in Potter Ravine, along creek at dirt rd crossing, between the High Rocks and Box Hall Flat, ca. 2 air mi E of Oregon City on Table Mt, 8 mi N of Oroville. 305 Comment
  CHSC98979  Cerastium glomeratum Lowell Ahart 2008-5-12 14751 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 258 Comment
  JEPS87502  Cerastium glomeratum Vernon H. Oswald and Lowell Ahart 1993-3-24 5238 Butte e. side of Dry Creek Canyon n. of Pentz historical site (on e. side of secondary drainage entering Dry Creek 2 mi. n. of Pentz Rd.) 243 Comment
  POM18691  Cercis occidentalis E. B. Copeland 1903-4-11 3045 Butte Chico. Comment
  SBBG17426  Cercis occidentalis B. Fuller 1961-4-1 Butte Butte Crk Cyn, Honeyrun Rd below Paradise Comment
  SFV1803  Cercis occidentalis M. L. Vincent 1961-3-30 24 Butte Honeyrun Road, 0.5 miles west of Paradise. 610 Comment
  UC204723  Cercis occidentalis A. A. Heller 1914-5-18 11406 Butte near Forest Ranch; West Slope of the Sierra Comment
  CHSC115455  Cercocarpus betuloides M. Sutton; C. Yasuda, S. Luse 2013-3-5 6 Butte Ten mile house trail. 391 Comment
  SEINET10483775  Cercocarpus betuloides Mary Susan Taylor 1975-4-25 Taylor 499 Butte Ca. 1/4 to 1/2 mi E of Cohasset Hwy, along dirt rd leading up onto ridge, ca. 10 mi NE of Chico. Soil wet red clay. Mixed Chaparral. Comment
  CHSC78097  Cercocarpus betuloides var. betuloides Megan Lee Hudzik 1998-4-21 26 Butte 1 mile n of Cohasset on the side of Cohasset Road. 914 Comment
  CAS-BOT-BC277630  Chaenactis glabriuscula var. megacephala E. B. Copeland 1899-6-2 s.n. Butte Chico Comment
  POM351845  Chaenactis xantiana M. M. Boney 1897-1 1724 Butte [Unspecified] Comment
  CHSC102983  Chamaesyce maculata Lowell Ahart 2009-8-15 16283 Butte Garden area, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  RSA498550  Chamaesyce nutans Willis H. Wheeler 1935-10-23 282 Butte Foreign Plant Introduction Sta., Chico. 76 Comment
  SEINET263347  Chamaesyce nutans V. H. Oswald, L Ahart 1991-8-28 4850 Butte Rice Experiment Station on the south side of Hwy 162 ca. 3.5 mi NNW of Biggs 30 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
  CHSC47421  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 1977-9-20 1579 Butte Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 39 Comment
  HSC66082  Cheilanthes cooperae M. S. Taylor 1980-4-16 2484 Butte Lake Oroville State Recreation Area on S side of Lake Oroville .5 mi. W of Hwy. 70, 5 mi. N of Oroville 305 Comment
  CAS-BOT-BC69444  Cheilanthes gracillima A. A. Heller 1917-7-29 12852 Butte Summit of Jonesville. 2133 Comment
  CDA13321  Cheilanthes gracillima G. F. Hrusa, T. D. Wilfred 1996-7-9 13167 Butte Sierra Nevada; approx. 0.5 m. E of bridge over Marble Creek on USFS N60. Comment
  SEINET10529917  Cheilanthes gracillima Mary Susan Taylor 1980-5-27 Taylor 2663 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC25523  Chenopodium album Hayes; Warner 1977-9-11 62 Butte Along dirt and gravel shoulder, Hwy 32, exactly 24.6 mi e of the Hwy 99 overpass on Hwy 32 in Chico. 914 Comment
  CHSC48289  Chenopodium album Vernon Oswald 1987-8-9 3195 Butte Hwy 32 n of Forest Ranch at the 35.9 mi road marker, 2.1 mi sw of Lomo. 1127 Comment
  CAS-BOT-BC460929  Chenopodium album Lowell Ahart 1981-11-6 3230 Butte East of the Gridley Bridge 35 Comment
  UC474265  Chimaphila menziesii E. B. Copeland 1930-7-21 Butte hill above hotel Jonesville Comment
  SEINET10449193  Chimaphila menziesii Mary Susan Taylor 1977-8-17 Taylor 1482 Butte Scattered in Red Fir Forest, at Humboldt Summit at Butte-Tehama County line, ca. 50-100 ft W of Old Humboldt Rd on Butte County side; with Arctostaphylos neva densis, Hackelia californica. 2134 Comment
  UC474267  Chimaphila umbellata H. F. Copeland 1930-7-26 Butte dry places by Fishermen's Trail Jonesville Comment
  UC600607  Chimaphila umbellata E. B. Copeland 1929-7-1 Butte along Butte Creek Jonesville 1550 Comment
  UC142064  Chlorogalum angustifolium Mrs. R. M. Austin May 1899 737 Butte Comment
  RSA695408  Chondrilla juncea L. Ahart 2003-6-30 10331 Butte Near water pipe where it comes out of the mountain, on north side of the Ponderosa Reservoir, about 2 air miles north of Forbestown. 481 Comment
  CHSC39931  Chorizanthe polygonoides var. polygonoides M. S. Taylor; V. Oswald 1984-4-4 5392 Butte S side of Humbug Rd, ca. 2 mi SW of Nimshew, ca. 12 air mi NE of Chico. In dry open bare patches on hillside. Comment
  JEPS119690  Chorizanthe polygonoides var. polygonoides Lowell Ahart 2012-5-2 17953 Butte About 50 yards northeast of the Government Pole Line, Upper Bidwell Park, about 1 mile east of Chico. Comment
  CAS-BOT-BC252834  Chorizanthe polygonoides var. polygonoides A. A. Heller 1939-4-26 15382 Butte Along the Neal Road just above the Spring House west of Paradise Comment
  CHSC103687  Chorizanthe stellulata Lowell Ahart 2010-4-30 16604 Butte Open area along a ridge, on both sides of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  JEPS117520  Chorizanthe stellulata L. Ahart 2010-5-23 16735 Butte West side of Pine Trail, about 40 yards west of Highway 32, about 9 air miles northeast of Chico 479 Comment
  CHSC39935  Cicendia quadrangularis M. S. Taylor; L. Ahart, J. Jokerst 1984-4-6 5398 Butte Ca. 0.5 mi N of Kunkle Reservoir, on E side of Pentz-Magalia Hwy, ca. 3 mi S of Paradise. Comment
  CHSC20493  Cichorium intybus M. S. Taylor 1975-6-25 795 Butte Along Mud Creek, ca. 1/4 mi N of Richardson Springs Hotel, ca. 6 mi NE of Chico. 121 Comment
  CHSC49528  Cinna latifolia Vernon Oswald; Lowell Ahart 1987-8-5 3192 Butte Scotts John Creek 1.3 mi n of the road connecting Humboldt and Humbug roads. On the edge of the creek. 1813 Comment
  CHSC28953  Circaea alpina subsp. pacifica M. S. Taylor 1978-7-21 1817 Butte On s side of Oroville-Quincy Hwy along creek in a meadow, ca. 14 mi n of Lake Madrone. 1463 Comment
  SD3366  Circaea alpina subsp. pacifica E. B. Copeland 1929-7-20 Butte 1500 Comment
  CAS-BOT-BC285278  Cirsium andersonii E. B. Copeland 1931-7-27 s.n. Butte Jonesville 1650 Comment
  SEINET179237 Image available Cirsium andersonii E. B. Copeland 1931-7-27 693 Butte Jonesville 1650 Comment
  SEINET5507043 Image available Cirsium andersonii H. F. Copeland 1924-8-11 n.s. Butte Jonesville 1524 Comment
  CHSC45659  Cirsium arvense Vernon Oswald 1987-7-29 3164 Butte 0.6 mi w of Coon Hollow Rd. on the dead-end spur road which parallels it on the south, ca. 2 mi (air) ne of Philbrook Reservoir. Roadside. 1783 Comment
  CAS-BOT-BC278077  Cirsium douglasii var. breweri E. B. Copeland 1930-7-28 s.n. Butte Jonesville 1600 Comment
  POM304703  Cirsium occidentale var. venustum Henry J. Ramsey, Henry J. Ramsey 1939-10-15 193 Butte Feather River Hwy. Comment
  CHSC37273  Cirsium vulgare L. Ahart 1982-8-10 3739 Butte Around rice field, Peter Ahart Ranch, ca. 2 1/2 mi n and 1/2 mi e of Honcut. 50 Comment
  CAS-BOT-BC228762  Cistanthe umbellata Javier Penalosa 1962-6-18 2478 Butte Near confluence of French and Peavine Crks., forest 640 Comment
  CHSC1091  Clarkia arcuata E. Hembree 1929-4-21 Butte Centerville Rd. 121 Comment
  CHSC84687  Clarkia biloba subsp. brandegeeae L. P. Janeway; John Hunt, Adam Henderson 2003-6-3 7803 Butte Northern High Sierra Nevada. Southeast side of Middle Fork Feather River arm of Lake Oroville, 1.5 km southwest of mouth of Bean Creek. 283 Comment
  CHSC1101  Clarkia gracilis subsp. albicaulis V. Holt 1942-6-1 Butte Forest Ranch. 548 Comment
  CHSC35138  Clarkia gracilis subsp. gracilis R. Schlising; R. Banchero 1981-5-20 4056 Butte E of Oroville on Forbestown Road, just S of Lake Wyandotte. Comment
  UC1186582  Clarkia gracilis subsp. gracilis G. I. Stage, R. W. Thorp 1959-6-21 59 -119 Butte 11.9 mi ne Chico (Highway 32) Comment
  POM37797  Clarkia gracilis subsp. gracilis C. C. Bruce 1898-05 2419 Butte Grain fields. Comment
  CAS-BOT-BC6941  Clarkia mildrediae Amos Arthur Heller 1938-7-2 15153 Butte On the Feather River Highway, 2 mi W of Arch Rock Tunnel. Comment
  CAS-BOT-BC163260  Clarkia mildrediae subsp. lutescens L. P. Janeway 1993-7-1 4413 Butte Along French Creek Road 4.1 mi from Stanwood Saddle and Oroville-Quincy Hwy. 801 Comment
  RSA0004431  Clarkia mosquinii subsp. mosquinii T. Mosquin 1959-7-3 3335 Butte 3.7 miles southwest of entrance ot Plumas National Forest, along Hwy 40 Comment
  SEINET10453158  Clarkia purpurea Lowell Ahart 1985-5-15 Ahart 4978 Butte West of Lunt Road, about 1/2 mile north of the inter- section of Lunt Road and Highway 70, north of Yankee Hill, N of Oroville. Comment
  CHSC28705  Clarkia purpurea subsp. purpurea R. A. Schlising 1979-5-30 3423 Butte Richvale vernal pools, 1/4 mile S of jct Hwy 162 to Oroville and Hwy 99, along the latter and across from Thermalito Afterbay. Comment
  CHSC10819  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1968-5-8 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC46387  Clarkia purpurea subsp. quadrivulnera Lowell Ahart 1989-5-10 6224 Butte At the end of the dirt road that leads to Lake Oroville, about 1/12 mile north-west of the West Branch Bridge across Lake Oroville. 280 Comment
  CAS-BOT-BC172378  Clarkia purpurea subsp. viminea L. P. Janeway 1991-6-1 3981 Butte Road-shoulder/top-of-fill of Dark Canyon Road 1.0 mi south of Big Bend Road/Parkhill 512 Comment
  CAS-BOT-BC164796  Clarkia rhomboidea L. P. Janeway 1991-6-1 3985 Butte Northwest-facing cut-bank of Dark Canyon Road 3.3 mi south of Big Bend Road/Parkhill 304 Comment
  CHSC1113  Clarkia rhomboidea M. Roberson 1956-6-4 Butte SW of Paradise, along Skyway. 426 Comment
  CHSC59111  Clarkia rhomboidea L. P. Janeway 1991-6-1 3976 Butte East-facing cut-bank of Dark Canyon Road 0.3 mi south of Big Bend Road/Parkhill. Near canyon bottom. 573 Comment
  RSA108431  Clarkia rhomboidea Harlan Lewis, M. Lewis, F. Vasek 1950-6-30 758 Butte Highway 24, 0.8 mile south of Arch Rock, Feather River. Comment
  UCR133590  Clarkia rhomboidea H. F. Copeland 1931-6-10 1520 Butte Rocky crest of ridge between Willow and Colby Creeks 1677 Comment
  SEINET10939937  Clarkia rhomboidea Mary Susan Taylor 1978-6-24 Taylor 1642 Butte Ernies Island, in Butte Creek, junction with Old Humboldt Road, ca. 0.5 mi W of Butte Meadows; Yellow Pine Forest. 1372 Comment
  RSA699522  Clarkia unguiculata R. D. Fischer 2004-4-28 146 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Highway 32. Located on bluff edge of the Disk Golf Course, just east of the northern most bluff projection (a lookout point) 366 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
  JEPS107415  Claytonia parviflora subsp. parviflora Lowell Ahart, Paul Maslin, John Dittes 2005-3-17 11651 Butte Big Chico Creek Ecological Reserve. South of the fence, on the east side of the very poor dirt road, about 1/8 mile northwest of the Indian Cave, about 3/4 mile west of Big Chico Creek, about 4 1/2 miles (air) northeast of Chico 481 Comment
  CAS-BOT-BC439428  Claytonia parviflora subsp. parviflora A. A. Heller 1920-4-10 13362 Butte New high school grounds at Chico Comment
  CHSC34944  Claytonia perfoliata subsp. perfoliata Patricia Haberkern 1974-3-24 21 Butte Abundant in grassy, shaded meadow ca. 50 yds. w Sycamore Pool in Bidwell Park, Chico. 60 Comment
  CHSC77711  Claytonia perfoliata subsp. perfoliata Tim Stofer 1997-4-20 18 Butte On the east side of the trail 150 ft from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  CHSC56070  Claytonia rubra subsp. rubra L. P. Janeway 1988-6-14 2774 Butte Ewalt Camp; edge of open dry meadow along West Branch Butte Creek 2.0 mi east from Hwy 32 by dirt road. 922 Comment
  UCR66727  Claytonia sibirica H. F. Copeland 1931-6-9 1515 Butte Jonesville, by Jones Creek 1524 Comment
  UCD95626  Clematis lasiantha P. Thompson 1996-4-26 36 Butte Hwy 70. Along steep roadside next to a running creek. Comment
  CHSC66443  Clematis ligusticifolia Vernon H. Oswald; Lowell Ahart 1996-6-10 7742 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. On the bank of the Sacramento River at the N end of the Riparian Sanctuary. 28 Comment
  CHSC43173  Collinsia parviflora R. Banchero 1980-6-2 184 Butte 8.2 mi ne of jct of Humbolt Rd and Hwy 32. 1463 Comment
  CHSC42016  Collinsia sparsiflora var. collina Lowell Ahart 1974-4-15 416 Butte Along Swedes Flat Road, about 1 mile east of the Bangor Oroville Highway, north of Bangor. 304 Comment
  UC1012173  Collinsia sparsiflora var. collina F. W. Pennell, A. A. Heller 1940-6-5 25679 Butte Route 24; 2 mi. up, along Feather River, above Oroville. 609 Comment
  SBBG17300  Collinsia sparsiflora var. sparsiflora M. Vincent 1962-4-16 196 Butte Honey Run Rd, ca. 0.5 mi W of Paradise, in Butte Crk Cyn Comment
  SD7641  Collomia grandiflora Daniel Cleveland 1882-7-14 Butte Sutten House Comment
  SEINET10496937  Collomia heterophylla Mary Susan Taylor 1981-4-28 Taylor 3563 Butte T22N R5E nw/sw sec 21. Berry Creek quad. N side of Rd 23N28.2, in loop of the rd, ca. 1.2 mi W of Chino Creek, ca. 4 air mi E of Jarbo Gap, ca. 23 air mi NW of Oroville. On decomposed granite; 3050 ft. 930 Comment
  CDA40005  Collomia linearis T. C. Fuller 1962-7-12 9171 Butte Road to Jonesville, 2 miles east of Butte Meadows. 0 Comment
  SEINET10496711  Collomia linearis Mary Susan Taylor 1978-6-24 Taylor 1644 Butte Ernies Island, in Butte Creek, junction with Old Humboldt Road, ca. 0.5 mi W of Butte Meadows; Yellow Pine Forest. 1372 Comment
  CHSC43703  Collomia tinctoria Vernon Oswald 1983-8-4 958 Butte Near Humboldt Rd. 3.5 mi n-e of Butte Meadows. Along Butte Creek. 1414 Comment
  CHSC87561  Comandra umbellata subsp. californica R. D. Fischer 2004-4-13 64 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Found near the southern end of Humboldt Trail. Old road bank. 441 Comment
  POM66159  Convolvulus arvensis Helen M. Edwards 1917-06 s.n. Butte De Sabla Comment
  CAS-BOT-BC286068  Conyza canadensis Lowell Ahart 1982-10-6 3848 Butte Along the banks of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 and 3/4 miles east of Honcut 50 Comment
  SEINET10931182  Cordylanthus hansenii Mary Susan Taylor 1979-10-13 Taylor 2258 Butte T22N R4E n half sec 17. Foothill Woodland on Jordan Hill Road (Ponderosa Way on some maps), ca. 4.8 mi N of its jct with Concow Road, ca. 2 mi E of Paradise. With Jim Jokerst. 610 Comment
  CDA38806  Cordylanthus pilosus subsp. hansenii L. Ahart 2010-9-12 17150 Butte Just above the high water line of Lake Oroville, about 150 yards north of the South Fork of the Feather River, about 50 yards east of Sucker Creek, about 1/4 mile (air) northwest of the Ponderosa Dam. Comment
  JEPS115275  Cordylanthus pilosus subsp. hansenii Lowell Ahart 2009-6-30 15973 Butte On the west side of Ten Mile House Road, about 30 yards east of Big Chico Creek, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 234 Comment
  CHSC40893  Cordylanthus tenuis subsp. tenuis Lowell Ahart 1985-7-24 5153 Butte Along the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC62587  Cordylanthus tenuis subsp. tenuis B. Castro 1993-8-5 494 Butte On saddle between Big Bar Mtn and Hungry Hunt Peak, abundant along road edges of sharp curve in USFS Rd 23N28. 1133 Comment
  JEPS23868  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with Howard Whisler 1957-7-26 6045 Butte Butte Meadows 1371 Comment
  UC196061  Cordylanthus tenuis subsp. viscidus A. A. Heller 1914-7-22 11586 Butte Little Summit 1463 Comment
  CHSC20128  Cornus florida M. S. Taylor 1975-5-6 557 Butte Ca. 5 ft e of Little Cafeteria, California State University, Chico. 60 Comment
  CAS-BOT-BC211985  Cornus nuttallii Helen M. Edwards 1917-5-1 s.n. Butte De Sabla Comment
  UC482954  Cornus nuttallii H. F. Copeland 1932-7-18 Butte near West Branch Comment
  UC1594678  Cotoneaster pannosus Lowell Ahart 1991-12-30 6735 Butte along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd. East southwest of Oroville Dam. 213 Comment
  SEINET10871334  Cotoneaster pannosus Lowell Ahart 1991-5-31 Ahart 6658 Butte Along the Dan Beebe Trail in Lake Oroville Recreation Area, between Canyon Drive and Oroville Dam Blvd. East, southwest of Oroville Dam. Foothill Woodland. T19N R4E c/s/S2.f 213 Comment
  CHSC78141  Crassula aquatica Lowell Ahart 2000-5-21 8379 Butte Slickens from the Cherokee mine, on the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. 60 Comment
  CHSC62352  Crassula connata B. Castro 1990-3-31 416 Butte Ca 4 mi SW of Paradise, S of Neal Rd ca 0.1 mi SE of Elliot Spring House. 297 Comment
  RSA636050  Crassula connata var. erectoides Michael A. Vincent, Ethan H. Freid 1998-4-6 8126 Butte Table Mountain Comment
  CHSC36970  Crassula tillaea M. S. Taylor; L. Ahart, J. D. Jokerst 1982-4-28 4372 Butte Graylodge Wildlife Refuge, around parking lot 5, ca. 1 mi s of HQ, ca. 12 mi sw of Gridley. 19 Comment
  JEPS124167  Crassula tillaea Lowell Ahart 2015-3-26 19967 Butte About 2 miles east of Rutherford Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  CDA34756  Croton setiger L. Ahart 2009-6-3 15956 Butte Open area west of the Guardian Rock Trail, about 120 yards north of Pine Trail, about 3/8 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. Comment
  CDA6678  Crucianella angustifolia L. Ahart 2003-5-26 10214 Butte On the west side of North Honcut Creek, about 2 1/2 miles north and 2 2/3 miles east of Honcut, about 12 miles southeast of Oroville. Comment
  JEPS124349  Crypsis schoenoides Lowell Ahart 2015-10-26 20601 Butte About 1 mile (air) of southeast of Kunckle Reservoir, about 5 miles (air) southeast of Paradise. Comment
  SD149202  Crypsis schoenoides Lowell Ahart 1980-8-16 2584 Butte Near Honcut 60 Comment
  SEINET10835341  Crypsis schoenoides Mary Susan Taylor 1978-9-8 Taylor 1882 Butte Along flood control slough, ca. 4 mi N of Chico, along Hwy 99. Comment
  JEPS122249  Crypsis vaginiflora Lowell Ahart 2014-9-23 19875 Butte On the northeast part of Horseshoe Lake, about 100 yards northeast of the Rod and Gun Club, Upper Bidwell Park, about one mile east of Chico. Comment
  UC203838  Crypsis vaginiflora A. A. Heller 1914-7-31 11632 Butte about 6 mi nw Chico; Sacramento Valley Comment
  CHSC111231  Cryptantha 2012-5-31 Butte Comment
  SEINET10497261  Cryptantha affinis Lowell Ahart 1983-8-16 Ahart 4292 Butte T26N R4E nw section 28. Along a small stream that flows into Butte Creek, ca. 1 mi east of Butte Meadows. Yellow Pine Forest; 1450 m. 1450 Comment
  SEINET516434  Cryptantha flaccida Lowell Ahart 1983-1 4119 Butte Normal size plant, growing on dry red rocky soil along Ponderosa Way, about 2 mi. SE of the intersection of the Oroville Quincy Hwy and Ponderosa Way (Big Ridge Rd.), about 15 mi NE of Oroville. 457 Comment
  HSC96916  Cryptantha intermedia L. Ahart 2006-6-9 12656 Butte N side of Bardees Bar Rd., E of the large stream, about 1/10 mi. N of the bridge across the N Fork of the Feather River at Bardees Bar, about 2.75 mi. SW of Pulga 355 Comment
  SEINET10935929  Cryptantha intermedia Lowell Ahart 1985-5-31 Ahart 5030 Butte Lake Oroville, 1/8 mile east of the Enterprise Launch Area, about 1/2 mile west of the Enter- prise Bridge across Lake Oroville, north-east of Oroville. Comment
  CHSC29973  Cryptantha milobakeri R. A. Schlising 1980-6-30 3806 Butte Along Humboldt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. 1356 Comment
  CHSC43576  Cryptogramma acrostichoides Vernon Oswald 1987-6-9 2969 Butte Summit Lake ca. 4 mi se of Jonesville, ca. 1 mi n of Snow Mt. 1901 Comment
  CHSC44159  Cuscuta californica var. breviflora V. Oswald; L. Ahart 1988-7-29 3653 Butte Ca. 5 mi (air) se of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  SEINET10496611  Cuscuta campestris Lowell Ahart 1983-9-19 Ahart 4455 Butte T17N R1E section 14. Ca. 1/8 mi s of the Graylodge Wildlife Refuge headquarters, ca. 12 mi sw of Gridley. Valley Grassland; 35 m. 35 Comment
  CHSC47406  Cuscuta howelliana Lowell Ahart 1980-6-15 2373 Butte About 2-1/2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 36 Comment
  RSA0105592  Cuscuta occidentalis Lowell Ahart 2013-7-16 18838 Butte Northwest of a large wash, about 1/2 mile southeast of the Honcut Cemetery, about 3 1/4 miles (air) northeast of Honcut. 54 Comment
  CHSC107566  Cuscuta pentagona Lowell Ahart 2011-8-17 17627 -A Butte About 10 yards north of the trail, north of the crossing and on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC48362  Cuscuta pentagona Vernon Oswald 1987-6-12 2997 Butte West side of Sacramento River (but technically in Butte County because of shifting channel) between Big Chico Creek and Phelan Island, ca. 0.75 mi s of Big Chico Creek. 35 Comment
  UCD80536  Cynodon dactylon CNPS SN Foothill Team 2006-5-25 SNNR 0936 Butte Horning Ranch (private). 119 Comment
  CHSC32142  Cynoglossum grande L. Ahart 1975-4-1 731 Butte Trail head to Feather Falls near Feather Falls community. 487 Comment
  UCD60178  Cynosurus echinatus Beecher Crampton 1965-6-17 7384 Butte 1/2 mile west Rackerby Store, La Porte Road. 426 Comment
  CHSC94596  Cyperus bipartitus Lowell Ahart 2006-9-11 13297 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  POM313106  Cyperus difformis H. L. Mason, Verne Grant 1946-8-14 13024 Butte Canal near big pond on Sacramento Outing Club, Butte sink. Comment
  RSA127041  Cyperus difformis H. S. Yates 1936-8-14 6123 Butte 10 miles S. of Durham 30 Comment
  SEINET197462  Cyperus difformis J. M. Tucker 1953-8-28 2680 Butte Biggs Rice Experiment Station. Comment
  UCD141013  Cyperus difformis E. M. Johnston 1915-1 W- 132 J Butte Biggs. Comment
  CHSC6630  Cyperus eragrostis M. MacArthur 1968-6-18 212 Butte Along SE edge of Big Chico Creek, opposite LS bld., Chico State College campus. 60 Comment
  UC1100532  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-15 13050 Butte #833 Irrigation Ditch near caretaker's house Greylodge Game Refuge; Butte Sink, Greylodge Game Refuge Comment
  RSA92299  Cyperus eragrostis F. W. Peirson 1926-6-20 6763 Butte Banks of Sacramento River, 5 miles west of Chico. 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
  UCD141051  Cyperus erythrorhizos P. B. Kennedy 9-10 Aug 1921 s.n. Butte Exact location unkown. Comment
  CDA38970  Cyperus flavescens L. Ahart 2000-8-23 8664 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  CHSC31451  Cyperus niger L. Ahart 1980-7-29 2511 Butte In the gutter along Lower Forbestown Rd or Ponderosa Way, ca. 1/4 mi n of the jct of Forbestown Rd and Robinson Mill Rd, w of Forbestown. 750 Comment
  UCR263570  Cyperus niger Lowell Ahart 2000-8-23 8662 Butte Sacramento Valley, about 1/2 mile west of Pacific Heights road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville 43 Comment
  SD131026  Cyperus niger Lowell Ahart 1981-9-19 3181 Butte Sierra Nevada Mountains; Arch Rock Tunnel; Highway 70. 550 Comment
  CHSC99002  Cyperus squarrosus Lowell Ahart 2008-5-30 14797 Butte Dry to damp granite soil, small meadow, bottom of an old gold mined area, about 150 yeards west of the cemetery, about 150 yards north of Oregon Gulch, about 10 miles (air) northeast of Oroville. 305 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
  CHSC68408  Cyperus strigosus L. P. Janeway; C. A. Janeway 1986-9-14 1865 Butte On bank along small slough/backwater of the Sacramento River at 'the washout. 36 Comment
  CHSC68411  Cyperus strigosus L. P. Janeway 1986-9-20 1875 Butte At edge of gravel bar along east side of Sacramento River; just southeast of the Ord Fery Road bridge. 28 Comment
  CAS-BOT-BC68041  Cystopteris fragilis K. D. Marsh 1974-4-30 4 Butte Honey Run Rd, ca. 11 mi e of Chico Comment
  SEINET10906973  Cytisus monspessulanus Mary Susan Taylor 1981-5-5 Taylor 3613 Butte T20N R6E nw sec 11, Forbestown quad. W side of spur rd, ca. 0.5 mi N of its jct with 21N35Y-Bryant Ravine Rd, ca. 1 air mi N of Feather Falls community. Yellow Pine Forest; 2800 ft. 853 Comment
  JEPS32213  Damasonium californicum W. L. Jepson 1934-5-4 16607 Butte 1 12/ mi. s. Nord (swales of Pine Creek near Sacramento R.); Pine Creek Comment
  SBBG128060  Danthonia californica L. Ahart 2010-9-21 17230 Butte N side of a poor dirt rd, ca. 1 mi NE of Jones Meadow, ca. 2.5 mi SE of Philbrook Reservoir 1899 Comment
  UC1131384  Danthonia californica H. S. Yates 1936-8-13 17549 Butte 2 1/2 mi sse Butte Meadows; Paynes Creek Quadrangle Comment
  SEINET10454653  Daucus pusillus Lowell Ahart, Peter Ahart 1983-6-21 Ahart 4077 Butte T20N R5E sec 6. Along Bloomer Hill Rd, ca. 3/4 mi w of Oroville-Quincy Hwy, ca. 15 mi ne of Oroville. Foothill Woodland; 425 m. 425 Comment
  CAS-BOT-BC8570  Delphinium hansenii John Thomas Howell 1962-6-16 37602 Butte Feather River West Branch, southwest of Nelson Bar 304 Comment
  JEPS117187  Delphinium hansenii subsp. hansenii Lowell Ahart 2010-6-1 16760 Butte On the north side of the Guardians Trail, about one mile east of the power lines, Upper Bidwell Park, about 3 miles (air) east of Chico 188 Comment
  CHSC31843  Delphinium hesperium L. Ahart 1978-5-24 1743 Butte Near North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  RSA126026  Delphinium hesperium E. K. Balls 1957-5-22 22501 Butte Hwy 40, 8.6 miles NE of Oroville. 91 Comment
  CHSC10790  Delphinium nudicaule Lowell Ahart 1968-3-17 Butte Bidwell Park, Chico. 91 Comment
  CHSC51109  Delphinium nudicaule Ginger S. Gough 1989-4-8 18 Butte Ca. 9 m ese of Coal Canyon Falls, n Table Mt., ca. 10 km ne of Oroville. 244 Comment
  CHSC56872  Delphinium nudicaule K. O'Connor-Henry 1985-3-8 3 Butte North Table Mtn., e of Cherokee Rd. and 3 mi. n of Oroville. 329 Comment
  CAS-BOT-BC8027  Delphinium nuttallianum Herbert Faulkner Copeland 1929-6-12 1211 Butte Jonesville, near north Willow Creek 1524 Comment
  CAS-BOT-BC8069  Delphinium nuttallianum A. A. Heller 1915-6-27 12038 Butte Jonesville in the Sierra Nevada 1676 Comment
  CAS-BOT-BC121609  Delphinium patens subsp. patens Mrs. J. H. Morrison 1932-5-8 s.n. Butte Durham Comment
  CHSC94035  Delphinium patens subsp. patens R. D. Fischer 2005-4-30 717 Butte Sierra Nevada foothills, adjacent Hwy. 32, below Forest Ranch in the Big Chico Creek Ecological Reserve on Lookout Trail. Plant collected off brushy, north facing slope. 518 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
  CDA24274  Delphinium variegatum subsp. variegatum T. C. Fuller 1958-4-15 Butte Highway 99E, 4 miles northwest of Oroville. 0 Comment
  CHSC3879  Delphinium variegatum subsp. variegatum Gary Dutton 1966-4-14 212 Butte Found in Upper Bidwell Park at Gun and Rod Club. Comment
  CHSC95162  Delphinium variegatum subsp. variegatum R. D. Fischer 2004-4-4 802 Butte Chico. Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition off Hwy.32. Collected along Guardian Trail between Pine and Bloodypin Trails on an open grassy slope. 335 Comment
  CAS-BOT-BC82875  Dendromecon rigida Mrs. J. H. Morrison 1932-4-17 s.n. Butte Durham. Comment
  CHSC59332  Dendromecon rigida J. L. Guardino 1992-3-23 4 Butte Paradise. 1/4 mi s of Circle Dr. terminus. 481 Comment
  SEINET12089322  Dendromecon rigida D. G. Bendix 1978-1 17 Butte WNW corner of Paradise Reservoir #1, 20 m W of intersection of Skyway and Dogtown Road, Magalia 830 Comment
  SEINET10907269  Dentaria pachystigma var. dissectifolia Mary Susan Taylor, L. Hanson 1981-4-10 Taylor 3524 Butte T22N R4E ne sec 2 to nw sec 1, Pulga SW quad. N-facing grassy serpentine slope, ca. 1/4 mi n of Pine Cluster Ranch, ca. 6 mi n of Jarbo Gap on Hwy 70, ca. 21 air mi n of Oroville. Elevation 2700 to 2900 ft. 731 Comment
  SEINET176079 Image available Deschampsia cespitosa E. B. Copeland 1931-7-15 605 Butte Jonesville border of the 'Lily Pond' a permanent pool warm in summer 1750 Comment
  HSC23363  Deschampsia danthonioides B. Wilson 1968-4-19 168 Butte 2 mi. S of Cherokee, Table Mountain. 549 Comment
  SEINET3927686  Deschampsia danthonioides B. Ertter, Jeff Strachan 1980-5-5 3255 Butte Peter Ahart Ranch ca 1.5 miles northeast of Honcut between Oroville and Marysville. North of house.; 0 30 Comment
  CAS-BOT-BC201743  Deschampsia elongata Lowell Ahart 1977-6-16 s.n. Butte Peter Ahart Ranch, Honcut. On the banks of North Honcut Creek 50 Comment
  CHSC45105  Deschampsia elongata Lowell Ahart 1988-9-4 6180 Butte On the bottom and sides of Big Kimshew Creek, the creek crosses a large meadow, about 1 air mile north-east of Jones Meadow. 1920 Comment
  CAS-BOT-BC402382  Dicentra formosa subsp. formosa A. A. Heller 1913-6-7 10831 Butte West Branch of the North Fork of the Feather River near Stirling 914 Comment
  CAS-BOT-BC402386  Dicentra formosa subsp. formosa E. B. Copeland 1929-7-22 364 Butte Jonesville 1500 Comment
  POM97794  Dicentra formosa subsp. formosa R. M. Austin, C. C. Bruce 1895-05 2421 Butte Bidwell Grove Comment
  SEINET11688337  Dichanthelium acuminatum subsp. fasciculatum L. Ahart, Ahart, P. 1984-1 4726 Butte about 1.5 mi SE of Bald Mtn, 0.75 mi W of Oak Point, ca 4 mi NE of Stirling City 1500 Comment
  SEINET10508815  Dichanthelium lanuginosum Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4138 Butte T20N R5E se/ne sec 10. Along edge of East Fork Canyon Creek, near Ponderosa Way (Big Ridge Rd), ca. 14 mi ne of Oroville. Foothill Woodland; 500 m. 500 Comment
  SEINET10533898  Dichelostemma congestum R. M. Austin Austin 37 Butte Mesa-east of Chico. Comment
  CHSC101669  Dichelostemma multiflorum Lowell Ahart 2009-4-26 15647 Butte On the west side of Guardians Trail, about 200 yards southwest of Pine Trail, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  HSC32643  Dichelostemma multiflorum Gary S. Lester 1974-4-20 97 Butte 1 mi. E of Hwy. 99, Skyway Blvd. 61 Comment
  SEINET3885608  Dichelostemma multiflorum R. A. Vanbianchi 1974-4-20 215 Butte 300 yards south of the intersection of Pentz and Clark Rds.; 0 Comment
  SEINET10905136  Dichelostemma volubile Mary Susan Taylor 1986-5-6 Taylor 5614 Butte Butte County; Along Cohasset Hwy, at Horse Trough, ca. 7 mi NNW of Chico. Foothill Woodland. With Vern Oswald and Lowell Ahart. 700 ft. 213 Comment
  SEINET8476826  Dichelostemma volubile B. Nightengale 1961-4-29 66 Butte Near highway between Paradise and Chico, 6 miles SW of Paradise. 366 Comment
  CHSC94982  Digitaria sanguinalis Lowell Ahart 2006-10-8 13433 Butte East side of the North Fork of the Feather River, about 50 yards north of where the river flows into a pool, on the west side of Highway 70, about 1/2 mile north of the Cresta Power House. 609 Comment
  CHSC97734  Digitaria sanguinalis Lowell Ahart 2007-11-3 14568 Butte Below the high water line of Lake Oroville, about 3/4 mile east of the Power House below Kunckle Reservoir, about 1 1/4 miles north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise. 259 Comment
  RSA724999  Digitaria sanguinalis L. Ahart 2006-9-11 13305 Butte South edge of the North Fork of the Feather River, North side of Highway 70, About 1/8 mile west of the Poe Dam, About 3/4 mile northeast of Pulga, About 21 miles (air) northeast of Oroville. 432 Comment
  CAS-BOT-BC153762  Diplacus angustatus Junea Kelley 1920-4-24 s.n. Butte Los Verjils Comment
  SEINET8340789  Diplacus grandiflorus Lowell Ahart 2006-5-10 12617 Butte Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, abotu 2 1/2 miles (air) southwest of Pulga. 354 Comment
  CHSC61218  Diplacus kelloggii Vernon H. Oswald; Lowell Ahart 1993-3-24 5242 Butte E side of Dry Creek Canyon N of the historical site of Pentz, on the east side of a secondary drainage entering Dry Creek 2 mi. N of Pentz Rd. 274 Comment
  CHSC62133  Diplacus kelloggii L. P. Janeway 1993-7-1 4418 Butte Plumas National Forest. North side of French Creek, 0.3 mi west of mouth of Ram Creek; along Rd 22N34 0.3 mi west of the 'low water crossing' of French Creek. 624 Comment
  CHSC44358  Diplacus tricolor Lowell Ahart 1988-4-29 5969 Butte On the Joie Osgood Ranch, about 2 miles north and 2 1/2 miles east of Honcut, about 12 miles south-east of Oroville. 76 Comment
  CHSC88054  Disporum hookeri R. D. Fischer; Jenny Marr 2004-5-16 180 Butte Chico Meadows. Northern Sierra Nevada, n. of Forest Ranch, 5 miles w. of Hwy 32 off Humboldt Road to Butte Meadows and ca. 3 miles n. to Chico Meadow (Camp Lassen, BSC) on Scout Road. Located at n. end, e. side where rd. crosses mdw., near mdw. 1292 Comment
  JEPS98609  Distichlis spicata Lowell Ahart 2000-6-21 8502 Butte On the margins of a seep, about 50 yards west of the dirt road at Parking Area L, west of the Diversion Dam, Upper Bidwell Park, about 2 1/2 miles (air) northeast of Manzanita Avenue, Chico. 106 Comment
  CDA31991  Dittrichia graveolens L. Ahart 2007-11-3 14577 Butte On the west side of Highway 70, about 100 yards north of Nelson Avenue, Thermalito. Comment
  CHSC83438  Dodecatheon alpinum L. P. Janeway 2002-5-26 7562 Butte High Cascade Range. Soggy sedge-dominated meadow below the head of Keyser Creek and just below the dirt road; 0.5 km east of Bald Mountain Lookout. 1695 Comment
  RSA4135  Dodecatheon alpinum subsp. majus E. B. Copeland 1930-6-26 s.n. Butte Jonesville. 1550 Comment
  CHSC4625  Dodecatheon clevelandii subsp. patulum R. Carter 1966-3-3 290 Butte Found 4 mi. NE of intersection of Chico Rd. and Old Cherokee Rd., 15' from W side of Cherokee Rd. 243 Comment
  CHSC3506  Dodecatheon clevelandii var. patulum M. Gregg 1966-2-21 14 Butte Old Chico-Oroville Rd. So. East of Chico. 1/4 mile from Hwy 99E. 53 Comment
  CHSC14047  Dodecatheon hendersonii J. F. Goodwin 1974-3-11 184 Butte Ca. .8 mi se on Oregon Gulch Rd from its intersection with Cherokee Rd, Table Mt, n of Oroville. Comment
  CHSC14050  Dodecatheon hendersonii J. F. Goodwin 1972-3-11 183 Butte Ca. 3.6 mi se on Cherokee Rd from its intersection with Hwy 70, side of road. Comment
  SEINET10458510  Downingia bella Mary Susan Taylor 1986-5-6 Taylor 5622 Butte Butte County; Along Cana-Pine Creek Road, Wurlitzer Ranch area, ca. 7 mi N of Chico. Open sun in Valley Grass- land. With Vern Oswald and Lowell Ahart. 200 ft. 61 Comment
  CHSC26816  Downingia bicornuta M. S. Taylor 1978-5-7 1602 Butte In Richvale vernal pools, ca. 20 mi s of Chico, on w side of Hwy 99. 30 Comment
  UCD55002  Downingia bicornuta R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 4 mi. N of Gridley. 30 Comment
  SEINET8039331  Downingia bicornuta B. Ertter, J. L. Strachan, L. Ahart 1980-5-7 3290 Butte Peter Ahart Ranch, ca 2-1/2 miles NNE of Honcut, between Oroville and Marysville. 30 Comment
  UC1562498  Downingia bicornuta var. bicornuta Barbara Ertter with Lowell Ahart 1986-4-13 5902 Butte ca 2 air mi nne Honcut (between Oroville and Marysville, Peter Ahart Ranch) 30 Comment
  UC764505  Downingia bicornuta var. bicornuta R. F. Hoover 1938-4-24 3250 Butte 3 mi e Richvale Comment
  SEINET10448473  Draba verna var. aestivalis Mary Susan Taylor 1979-3-19 Taylor 1929 Butte T23N R5E Pulga quad. In the vicinity of Pulga bridge over Feather River on Hwy 70, ca. 25 mi NE of Oroville. 488 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
  JEPS121904  Draperia systyla Lowell Ahart 2014-7-16 19671 Butte About 50 yards east of Skyway, about 1/4 mile north of Stirling City. Comment
  RSA129731  Draperia systyla C. G. Albertus 1933-7-26 54 Butte 1/2 mile south of Barnum Mill. Chico Quadrangle. 1372 Comment
  CHSC41360  Drosera rotundifolia R. A. Schlising 1980-7-14 3890 Butte 1.1 mile S of Inskip along the Skyway. ... Field redacted by CHSC, contact the data manager for more information Comment
  UC426910  Drosera rotundifolia E. B. Copeland 1930-7-25 417 Butte Jonesville 1500 Comment
  UCD123996  Drosera rotundifolia Barry Rice 2011-8-21 BR 110809 Butte Along Colby Creek. Population upstream, extending into Tehama County. 1490 Comment
  UC648311  Drymocallis hansenii Lewis S. Rose 1939-6-6 39234 Butte Strawberry Valley 1219 Comment
  CAS-BOT-BC70852  Dryopteris arguta Lowell Ahart 1987-7-3 5751 Butte along the edge of Poe Power House Road, about 1 mile northwest, about 1 mile southeast of Jarbo Gap 487 Comment
  CHSC28512  Dryopteris arguta M. S. Taylor; J. D. Jokerst 1979-10-13 2267 Butte On Jordan Hill Rd (Ponderosa Way on some maps) ca. 7.1 mi n of its jct with Concow Rd, ca. 2 mi se of Magalia. Comment
  CHSC3431  Duchesnea indica Judy Potter 1966-3-23 Butte West of Physical Science bridge Chico State College. Comment
  SEINET10449678  Dudleya cymosa Mary Susan Taylor 1981-5-15 Taylor 3735 Butte T22N R5E sw/nw sec 18, Pulga SW quad. N side of Feather River Hwy 70, at Plumas National Forest boundary, ca. 2 mi NE of Jarbo Gap. 2000 ft. 610 Comment
  CHSC21254  Dysphania ambrosioides M. S. Taylor 1975-10-3 933 Butte Ca. 1/4 mi n of the washout, between River Rd and the Sacramento River, ca. 10 mi w of Chico. 36 Comment
  CHSC26666  Dysphania ambrosioides M. S. Taylor; M. Hayes 1977-8-16 1445 Butte In flower bed, Butte College, Campus, ca. 15 mi s of Chico. 60 Comment
  CHSC31541  Dysphania ambrosioides L. Ahart 1978-7-23 1790 Butte Along the rd to our home. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC108179  Dysphania botrys L. P. Janeway 2011-8-18 10663 Butte Northern High Sierra Nevada. Plumas National Forest; top of Bloomer Hill. In areas where mixed conifer forest has been greatly thinned and the resulting understory shrubs have been cleared several years ago. 912 Comment
  CDA42929  Echinochloa crus-galli L. Ahart 2012-9-28 18463 Butte On the north side of Big Chico Creek, about 150 yards east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  SBBG116106  Echinochloa crus-galli B. Crampton 1963-9-9 6887 Butte ca. 5 mi NW of Biggs, Biggs Rice Experiment Stn Comment
  UC203668  Echinochloa crus-galli A. A. Heller 1914-5-19 11418 Butte 8 mi n Oroville Comment
  SEINET10509315  Echinochloa crus-galli Lowell Ahart 1984-9-17 Ahart 4792 A Butte Peter Ahart Ranch, ca. 2.3 mi N and 0.3 mi E of Honcut, ca. 12 mi S of Oroville. Valley Grassland; 50 m elev. 50 Comment
  SEINET3928601  Echinochloa muricata Lowell Ahart 1984-9-17 4792 B Butte Peter Ahart Ranch, ca. 2.3 miles north and 0.3 miles east of Honcut, ca. 12 miles south of Oroville.; 0 50 Comment
  CAS-BOT-BC197254  Echinochloa muricata var. microstachya A. A. Heller 1914-5-19 11418 Butte Hills 8 miles north of Oroville Comment
  SBBG120012  Elaeagnus angustifolia L. Ahart 2006-8-29 13239 Butte ca. 100 yards N of the Headquarters, Gray Lodge Wildlife Area 20 Comment
  CHSC116008  Elatine ambigua Lowell Ahart 2015-10-1 20534 Butte Hamilton road, about 1/4 miles east of Riceton Highway. Rice field on the north side of Hamilton road, about 1/4 miles (air) north of Biggs. 30 Comment
  SEINET11994725  Elatine heterandra Unknown 1984-1 4596 Butte ca 25 mi N and 1.4 mi E of Honcut, ca 12 mi S of Orovill 40 Comment
  CAS-BOT-BC113636  Eleocharis acicularis E. B. Copeland 1929-7-19 344 Butte Jonesville, in very wet, grassy glade. 1550 Comment
  CHSC28856  Eleocharis acicularis J. D. Jokerst; T. B. Devine, D. Greenstein 1979-5-2 458 Butte Ca. 1.0 mi N of jct of Cherokee Rd and E edge of North Table Mt. 381 Comment
  SEINET13710245  Eleocharis acicularis Lowell William Ahart, Lowell William Ahart 2000-1 8690 Butte Pond on E Side Sacramento River, NE of Parrott Landing, 12 Mi SW Chico Comment
  CAS-BOT-BC113460  Eleocharis bella A. A. Heller 1914-7-23 11596 Butte Headwaters of Chico creek in Chico meadows. 1219 Comment
  UC1609054  Eleocharis bella Lowell Ahart 1993-7-13 7065 Butte 12 mi S of Oroville (bottom of a deep wash, Peter Ahart Ranch, 1 1/2 mi N and 1 mi E of Honcut) 36 Comment
  CAS-BOT-BC113458  Eleocharis bella A. A. Heller 1963-7-16 63 52 b Butte Headwaters of Chico creek in Chico meadows. 1219 Comment
  CHSC94332  Eleocharis decumbens Lowell Ahart 2006-7-25 13060 Butte In the west part of a large meadow and bog, about 20 yards east of the poor dirt road, about 100 yards south of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows. 1569 Comment
  CHSC78193  Eleocharis engelmannii Lowell Ahart 2000-5-18 8370 Butte On the bottom of the Clay Pit, about 1/8 mile west of the Oroville Airport and Larkin Road, about 4 1/2 miles (air) southwest of Oroville. 36 Comment
  JEPS94889  Eleocharis engelmannii Lowell Ahart 1998-6-30 8014 Butte about 7 air mi n of Oroville (sw of the ione oak tree, w of the cow chute on the w side of Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  JEPS98701  Eleocharis engelmannii Lowell Ahart 2000-10-21 8712 Butte About 100 feet north of Hamilton Road, about 1/8 mile east of Riceton Road, Rice Experiment Station northwest of Biggs, 2 1/4 miles (air) north of Biggs. 30 Comment
  CAS-BOT-BC113369  Eleocharis engelmannii M. S. Taylor 1978-7-22 1842 Butte Ca. 20 ft E of the Midway, ca. 7 mi S of Durham, in rice field. 30 Comment
  CHSC2112  Eleocharis macrostachya R. Morford 1931-4-28 Butte Dodge Lands. Comment
  CHSC31942  Eleocharis macrostachya J. D. Jokerst; M. S. Taylor, R. Schlising 1979-5-18 718 Butte Top of Cohasset Ridge on slopes facing Mud Cr. 243 Comment
  CHSC45229  Eleocharis macrostachya J. D. Prouty 1980-4-7 Butte Roadside ditch at jct Palermo-Honcut Hwy and Cox Lane; ca 9 mi S of Oroville. Comment
  CHSC68430  Eleocharis macrostachya L. P. Janeway; C. A. Janeway 1986-10-5 1916 Butte About 1/2 mi from the west end of Wilson Landing Road. 42 Comment
  CHSC94556  Eleocharis macrostachya Lowell Ahart 2006-9-13 13315 Butte South edge of the North Fork of the Feather River, about 100 yards west of Mill Creek, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  RSA0046896  Eleocharis macrostachya Richard Carter 2006-7-30 17100 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99; along Mud Creek. Comment
  CAS-BOT-BC112788  Eleocharis macrostachya Forman Taylor McLean 1921-9-26 s.n. Butte Weed in rice field, Nelson Comment
  CHSC68445  Eleocharis montevidensis L. P. Janeway 1988-5-29 2705 Butte Low in canyon of Little Chico Creek, about 2 mi south of Ten Mile House. 228 Comment
  JEPS95984  Eleocharis obtusa Lowell Ahart 1999-10-28 8304 Butte large disturbed area along the east side of the Sacramento River; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  JEPS98504  Eleocharis obtusa var. obtusa Lowell Ahart 2000-9-4 8685 Butte Along the west margin of a large pond on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CAS-BOT-BC113212  Eleocharis parishii Holm 1903-5-30 3280 Butte Chico Comment
  JEPS98362  Eleocharis quinqueflora Lowell Ahart 2000-7-7 8559 Butte 4 air miles N[?]E of Feather Falls (N side of Lumpkin Ridge Rd, upper W branch of Know-nothing Creek, 1 mi SW of int of Lumpkin Ridge Rd N to Fall River, and the County Road) 1219 Comment
  JEPS98472  Eleocharis quinqueflora Lowell Ahart 2000-5-30 8411 Butte 2 mi S of Paradise (about 1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  CAS-BOT-BC112065  Eleocharis quinqueflora Lowell Ahart 1987-4-30 5496 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut. 39 Comment
  CAS-BOT-BC112031  Eleocharis suksdorfiana Herbert Faulkner Copeland 1929-6-10 1246 Butte Jonesville. 1524 Comment
  SEINET13710126  Eleocharis suksdorfiana Lowell William Ahart, Lowell William Ahart 2000-1 8552 Butte 4.5 Mi. N of Stirling City (T25N, R4E, sec 33, SW 1/4) 4300 Ft. 1311 Comment
  CHSC101066  Elymus glaucus R. A. Schlising; R. Preston, R. Banchero 1981-6-22 4107 Butte Lumpkin Ridge, east of village of Feather Falls. 1280 Comment
  UCR143543  Elymus glaucus H. F. Copeland 1930-7-21 1341 Butte Jonesville 1524 Comment
  SEINET10507701  Elymus glaucus Mary Susan Taylor 1977-6-25 Taylor 1364 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC44919  Elymus glaucus subsp. jepsonii Lowell Ahart 1988-7-28 6136 Butte Hillside at the north side of the dam at Lost Creek Reservoir. 1036 Comment
  CAS-BOT-BC234107  Elymus multisetus John Thomas Howell 1955-6-15 30512 Butte West Branch of North Fork of Feather River 182 Comment
  CHSC49492  Elymus stebbinsii subsp. septentrionalis Vernon Oswald 1983-7-6 814 Butte Humboldt Rd. between Lomo and Butte Meadows, 0.6 mi e of Hwy 32. 1249 Comment
  CHSC45760  Epilobium brachycarpum Steven Triano 1988-9-18 250 Butte Ca 70 ft w of Hwy. 32 and 20.3 mi n of its jct. with Hwy. 99. 984 Comment
  CHSC100797  Epilobium campestre R. A. Schlising 1986-9-27 4506 Butte E end of Paradise Lake, N of Paradise and Magalia. 762 Comment
  UC873163  Epilobium campestre A. A. Heller 1914-5-13 11395 Butte between Durhan and Nelson; Butte Creek 53 Comment
  CHSC109665  Epilobium ciliatum subsp. ciliatum Lowell Ahart 2012-6-28 18235 Butte 10 yards south of Vallombrosa Avenue, northeast of Sycamore Pool, Lower Bidwell Park, Chico. 61 Comment
  CHSC69723  Epilobium ciliatum subsp. ciliatum Lowell Ahart 1997-10-20 7932 Butte On sand bars, on the west side of the sharp bend in the South Fork of the Feather River, about 1/4 mile north of the bridge across the river, about 3/4 mile north of the Golden Trout Crossing, 3 miles (air) northwest of Sly Creek Reservoir Dam. 914 Comment
  CHSC70333  Epilobium ciliatum subsp. ciliatum R. A. Schlising; P. Broyles 1988-7-3 4562 Butte SE of Stirling City, past '5 Corners' at a small stream. Comment
  SBBG127998  Epilobium ciliatum subsp. ciliatum L. Ahart 2009-7-9 16003 Butte E side of Ten Mile House Rd, upper Bidwell Park, ca. 0.75 mi W of Hwy 32, ca. 10 mi NE of Chico 236 Comment
  JEPS108964  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2006-9-13 13325 Butte South edge of the North Fork of the Feather River, about 100 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  RSA0118758  Epilobium ciliatum subsp. glandulosum Lowell A. Ahart 2014-7-13 19653 Butte East part of a large wet meadow, about 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  SEINET6635797 Image available Epilobium ciliatum subsp. glandulosum E. B. Copeland 1929-7-25 388 Butte Jonesville 1500 Comment
  CHSC27038  Epilobium densiflorum Robert A. Schlising 1978-6-25 3294 Butte E of Oroville, 3.4 mi below L. Wyandotte near L. Oroville. Comment
  UC873154  Epilobium densiflorum A. A. Heller 1914-7-13 11564 Butte 10 mi e Oroville (stream banks); Mt. Ida Ranch Comment
  CHSC111965  Epilobium foliosum Lowell Ahart 2012-6-2 18141 Butte South edge of Truex Road, about 40 yards east of intersection of Truex Road and Trevor Road, about 1/8 mile northwest of West Branch Bridge across Lake Oroville. 306 Comment
  CHSC46576  Epilobium glaberrimum subsp. glaberrimum Vernon H. Oswald 1989-7-18 3862 Butte Humboldt Rd east of Butte Meadows, ca. 0.5 mi sw of the Butte Creek Bridge at Cherry Hill. Meadow bordering Butte Creek. 1389 Comment
  CHSC46581  Epilobium hornemannii subsp. hornemannii V. Oswald; L. Ahart 1989-7-12 3850 Butte Meadow near the headwaters of Big Kimshew Creek, ca. 2 mi (air) sw of Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. On the edge of a stream on the slope above the meadow. 1926 Comment
  CHSC48632  Epilobium minutum Vernon Oswald 1987-6-2 2943 Butte Butte-Yuba County line about 3 mi ne of Forbestown, on the se side of Forbestown Reservoir Rd. 883 Comment
  UCD106506  Epilobium minutum Lewis S. Rose 1963-6-2 63071 Butte 2 miles S of Pulga. North fork of Feather River. 579 Comment
  POM46486  Epilobium minutum C. C. Bruce 1897-06 s.n. Butte Butte Creek Comment
  SEINET10453179  Epilobium minutum Mary Susan Taylor 1978-5-6 Taylor 1572 Butte Just N of Magalia, in large serpentine area along the Skyway. 610 Comment
  SEINET6644443 Image available Epilobium obcordatum E. B. Copeland 1931-1 664 Butte Jonesville; "the Summit" 2000 Comment
  UC478494  Epilobium obcordatum E. B. Copeland 1931-7-13 664 Butte The Summit Jonesville 2000 Comment
  CHSC1088  Epilobium pallidum V. Holt 1935-5-11 Butte Salmon Hole on Chico Creek. 152 Comment
  CHSC109598  Epilobium pallidum Lowell Ahart 2012-5-31 18124 Butte About half way between Salmon Hole trail and Parking Area O, Upper Bidwell Park. 121 Comment
  CHSC8750  Epipactis gigantea S. Chulasmai 1961-4-30 38 Butte Heloepine Spring (Upper Bidwell Park). Comment
  SD10028  Equisetum arvense E. B. Copeland 1930-6-24 Butte Jonesville 1500 Comment
  CAS-BOT-BC57854  Equisetum hyemale subsp. affine E. B. Copeland 1929-7-6 330 Butte Jonesville. Comment
  CHSC9  Equisetum laevigatum A. Small 1960-5-14 Butte Kimshew. Comment
  UC1609407  Equisetum laevigatum Lowell Ahart 1993-6-26 7012 Butte ca. 1/4 mi w Lost Creek Reservoir (near center <of> Section 24, n of dirt rd.) 1036 Comment
  CHSC103155  Equisetum telmateia subsp. braunii Lowell Ahart 2009-6-19 15938 Butte South of trail where people cross Big Chico Creek, on the east side of Big Chico Creek, about 50 yards west of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 203 Comment
  CHSC49542  Eragrostis cilianensis V. Oswald; R. Cunningham 1988-8-6 3682 Butte In s Chico, s of Park Ave., near the end of Paseo Campaneros. In the garden of Ruth and Glenn Cunningham. 64 Comment
  CAS-BOT-BC284080  Eragrostis pectinacea var. pectinacea Lowell Ahart 1977-7-10 1493 Butte 3 miles northeast of Honcut 50 Comment
  CHSC94758  Eragrostis pectinacea var. pectinacea Lowell Ahart 2006-9-11 13338 Butte South side of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville. 431 Comment
  CHSC92525  Eremogone cliftonii Samantha Mackey Hillaire; Matt Brown, Lawrence Janeway, Jamie Lewis 2005-5-4 1216 Butte North of Pulga/Mayaro area. 1018 Comment
  CHSC42695  Eremogone congesta var. congesta Vernon Oswald; Lowell Ahart 1987-7-1 3054 Butte Scotts John Rd. 1.3 mi n of the road connecting Humboldt and Humbug Rds, ca. 2.5 mi ene of Jonesville. On the w side of Scotts John Creek. 1828 Comment
  CHSC44199  Eremogone congesta var. congesta Vernon Oswald 1988-6-30 3549 Butte At the end of a spur road on the w side of Humbug Rd. between Cold Springs and the summit. 1975 Comment
  CHSC41870  Ericameria arborescens Lowell Ahart 1986-10-16 5406 Butte Along Ponderosa Way, about 1/2 mile south of Lumpkin Road, about 3 miles south-west of Feather Falls. 609 Comment
  UC600729  Ericameria bloomeri H. F. Copeland 1920-8-25 383 Butte Jonesville Comment
  UC699659  Ericameria nauseosa var. speciosa E. B. Copeland Butte Butte Meadows Butte Comment
  CHSC113979  Erigeron canadensis Lowell Ahart 2014-11-17 19910 Butte Just below the high water line of Lake Oroville, about 50 yards west of the Enterprise Boat Launch Area, parking area, about 11 miles (air) northeast of Oroville. 253 Comment
  CHSC48151  Erigeron glacialis var. glacialis Vernon Oswald; Lowell Ahart 1987-7-1 3071 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. On the edge of a streamley draining the largest lake into Butte Creek. 1935 Comment
  CHSC58883  Erigeron glacialis var. glacialis Lowell Ahart 1992-7-26 6855 Butte Along a stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1798 Comment
  CAS-BOT-BC295161  Erigeron inornatus Lowell Ahart 1981-7-7 2913 Butte East of the bridge across Rocky Honcut Creek, Swedes Flat Road, ca. 7 mi. N of Bangor 350 Comment
  CHSC84726  Erigeron inornatus var. inornatus L. P. Janeway; Christine Hantelman 2003-6-19 7851 Butte Northern Sierra Nevada Foothills. Along south edge of Middle Fork Feather River arm of Lake Oroville, half way between mouth of South Fork Feather River arm of the lake and mouth of Bean Creek. 277 Comment
  POM193098  Erigeron lassenianus E. B. Copeland 1929-7-17 489 Butte Above Jonesville 2000 Comment
  CHSC3515  Erigeron philadelphicus John Francis 1966-4-6 105 Butte 1.5 miles E. of covered bridge (Honey Run). Beside road. Comment
  CAS-BOT-BC216048  Eriodictyon californicum A. A. Heller 1928-4-30 14535 Butte Along the Neal Road about 3 miles below Paradise Comment
  CHSC19919  Eriodictyon californicum M. S. Taylor 1975-2-16 385 Butte Ca. 2 mi s of Concow Reservoir on Jordan Hill Rd. Comment
  CHSC30810  Eriodictyon californicum M. S. Taylor; J. D. Jokerst 1980-4-18 2532 Butte On e side of Humbug Rd, ca. 3 mi sw of Nimshew. 518 Comment
  CHSC35968  Eriodictyon californicum M. S. Taylor 1982-5-23 4514 Butte Scattered on n side of Hwy 70, e side of Arch Rock Tunnel, ca. 1/2 mi sw of Butte-Plumas county line. 487 Comment
  CAS-BOT-BC259405  Eriogonum luteolum A. A. Heller 1916-9-5 12646 Butte Hills 8 miles north of Oroville Comment
  RSA722693  Eriogonum luteolum R. R. Halse 2006-8-2 6983 Butte Chico. In the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  UCD100307  Eriogonum luteolum P. Rodriguez-Rojo; D. Sanchez-Mata 1997-8-16 s.n. Butte Magalia. Westside of Magalia Res. 310 Comment
  CHSC23446  Eriogonum luteolum var. luteolum K. R. Stern 1974-6-30 5769 Butte Serpentine outcrop, Coutelenc Road, 0.2 mi n of intersection with Skyway and ca. 1 mi n of Magalia. Comment
  CAS-BOT-BC261717  Eriogonum nudum var. oblongifolium John Thomas Howell 1975-6-15 51120 Butte Paradise. Skyway near Clark Road 609 Comment
  SBBG128101  Eriogonum nudum var. oblongifolium L. Ahart 2010-9-12 17149 Butte below the high water line of Lake Oroville, ca. 150 yards N of the S Fork of the Feather River, ca. 50 yards E of Sucker Crk, ca. 0.25 mi NW of the Ponderosa Dam 243 Comment
  CHSC42028  Eriogonum nudum var. pubiflorum Lowell Ahart 1986-8-15 5391 Butte East of the dirt road, along a branch of Last Chance Creek, about 1 mile west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1371 Comment
  UC1562280  Eriogonum roseum Lowell Ahart 1990-8-15 2923 Butte about 1/2 mi nw Enterprise Bridge (below the high water line of Lake Oroville, e of the Enterprise Boat Launch Area); Lake Oroville 274 Comment
  CAS-BOT-BC268615  Eriogonum spergulinum var. reddingianum E. B. Copeland 1931-7-11 s.n. Butte Jonesville. Ridge between Jones and North Willow Creeks 1700 Comment
  CHSC69453  Eriogonum umbellatum var. ahartii Lowell Ahart 1997-9-6 7883 Butte Near the McNab Cypress grove, near the steep tower power line, along the sides of a logging road, about 1/4 mile west of Rim Road, about 2 miles (air) northeast of Concow Reservoir. 731 Comment
  CHSC69661  Eriogonum umbellatum var. ahartii Vernon Oswald; Lowell Ahart 1997-9-9 8857 Butte Northeast of Magalia near the gravel pit on Jordan Hill Rd. 1.4 road mi east of the Whiskey Flat Bridge over the West Fork Feather River, 0.7 air mi northwest of Sawmill Pk. Lookout. 719 Comment
  JEPS100230  Eriogonum umbellatum var. speciosum Dean W. Taylor 2002-7-3 18215 Butte Fields Ridge, northerly rim South Fork Feather River canyon (ca. 3 air miles SE of Feather Falls mill site, ca. 19 miles E of Oroville) 1005 Comment
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Jan 25 2016
  SEINET11932639  Eriogonum umbellatum var. speciosum M. S. Taylor 1981-1 4280 Butte N side of Feather River Hwy 70 at Pulga bridge, on large outcrop, ca 20 mi NE of Oroville 488 Comment
  CAS-BOT-BC262214  Eriogonum ursinum Lowell Ahart 1981-8-1 3017 Butte Near the top of Humboldt Peak 2157 Comment
  UC849667  Eriogonum ursinum A. A. Heller 1938-5-28 15116 Butte along Feather River Highway 23 mi from Oroville Comment
  CHSC39091  Eriogonum ursinum var. ursinum R. A. Schlising 1980-7-28 3935 Butte N part of county, E of Jonesville on road to Scotts John Creek. Comment
  CHSC102182  Eriogonum vimineum George W. Hartwell 2009-6-30 Butte Concow Road, approx. 3-4 miles above Concow Reservoir on serpentine ridge burned by wildfire in summer 2008. 858 Comment
  CAS-BOT-BC308169  Eriophyllum lanatum var. grandiflorum E. B. Copeland 1930-7-11 492 Butte Jonesville 1550 Comment
  CHSC21274  Eriophyllum lanatum var. grandiflorum M. S. Taylor 1975-5-30 394 Butte On the n side of Upper Bidwell Park Rd, ca. 3 mi e of Golf Course, Upper Bidwell Park, Chico. 121 Comment
  CHSC77708  Eriophyllum lanatum var. grandiflorum Tim Stofer 1997-4-16 17 Butte This plant was located all along the trail 50 ft. from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  UC614533  Eriophyllum lanatum var. grandiflorum L. Constance, J. L. Morrison 1938-4-30 2176 Butte 5 mi se Oroville; Feather River 152 Comment
  SBBG8177  Eriophyllum lanatum var. integrifolium H. and M. Dearing 1938-6-21 2045 Butte 15 mi N of Chico Comment
  SEINET244631  Erodium botrys Richard R. Halse 2002-3-27 6154 Butte At the junction of State Hwy. 99 and Hamilton Nord Cana Hwy. Ca. 8 miles NW of Chico. 40 Comment
  JEPS115287  Erodium cicutarium Lowell Ahart 2009-4-3 15528 Butte Along margins of the gravel road, east of the Cedar Grove parking area in Lower Bidwell Park, Chico 67 Comment
  HSC67597  Erodium cicutarium J. P. Smith 1973-3-22 5912 Butte 2.1 mi. E of junction with Hwy. 99 and the road to Paradise 122 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
  SEINET10940377  Erysimum capitatum Mary Susan Taylor 1975-4-29 Taylor 544 Butte Abundant on S side of Hwy 70, ca. 25 mi NE of Oroville, near Bear Creek, ca. 1 mi SW of Butte-Plumas County line; with Styrax officinalis ssp. californica, Draperia systyla; on granitic soils. Comment
  CHSC10770  Erysimum capitatum var. capitatum Lowell Ahart 1970-5-19 Butte Along Deadwood Road, off Highway 70. 914 Comment
  CHSC1750  Erythranthe bicolor M. Underhill 1952-6-30 Butte Comment
  CHSC43153  Erythranthe bicolor R. A. Schlising 1980-6-30 3804 Butte Humbolt Road, 1.9 mi NE of jct with Hwy 32 at Lomo. 1280 Comment
  CHSC102395  Erythranthe cardinalis Lowell Ahart 2009-8-23 16290 Butte About 30 yards west of the seep at the base of a large rock, northwest of a broad open drainage in oak woodland, about 150 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) west of Highway 32, about 10 miles northeast of Chico. 266 Comment
  CAS-BOT-BC151491  Erythranthe filicifolia Lowell Ahart 1987-5-12 5634 Butte South of Lumpkin ridge Road, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls 1280 Comment
  CHSC109353  Erythranthe filicifolia T. M. Hanson; Melanie Williams 2012-6-21 Butte Northern Sierra Nevada. Plumas National Forest; south of Lumpkin Ridge Road (22N27); 2.1 km east of Camp Eighteen. 1256 Comment
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Jan 23 2014
  CHSC33342  Erythranthe filicifolia R. Banchero 1980-6-14 220 Butte Big Bald Rock, ca. 2.5 mi e of Lower Jct of Zink and Bald Rock Rd, 0.5 mi from the road. 975 Comment
  CHSC22330  Erythranthe glaucescens Robert A. Schlising 1963-5-4 2564 Butte Sierra Nevada. South of Cohasset, 5.2 miles north of Jct. Cohasset Hwy and Kiefer Road, along Cohasset Hwy. Comment
  CHSC38700  Erythranthe glaucescens Vernon Oswald 1983-3-9 138 Butte Upper Bidwell Park, Chico, on the north clope ca. 600 ft w of the power lines abd 1600 ft n of the Upper Park Rd. 152 Comment
  CHSC85410  Erythranthe glaucescens John Dittes; Josephine Guardino 1992-5-7 480 Butte Cascade Range Foothills; ca. 5.1 air-miles northeast of Chico City Hall, ca. 1.3 air-miles east by southeast of Horseshoe Lake, ca. 1.2 air-mile west of Hwy 32; south-facing slope, north of tributary of Dead Horse Slough, east of Canyon Oaks Golf Course. 176 Comment
  CHSC42863  Erythranthe guttata Lowell Ahart 1987-4-30 5487 Butte Along North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville. 67 Comment
  CHSC31871  Erythranthe latidens L. Ahart 1978-5-1 1678 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC44069  Erythranthe latidens Lowell Ahart 1986-4-19 5244 Butte Peter Ahart Ranch, about 2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 39 Comment
  CHSC20116  Erythranthe nasuta M. S. Taylor 1975-4-26 535 Butte Se corner of Kunkle Reservoir, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 1 mi s of Paradise. 609 Comment
  CHSC44787  Erythranthe nasuta R. Banchero 1980-3-27 84 Butte Along Richardson's Springs Rd Ca 4 mi NE of its jct with Cohasset Hwy, Ca 1.3 mi W of the town of Richardson's Springs. 213 Comment
  SEINET10469670  Erythronium cliftonii Mary Susan Taylor, D. Hemphill 1981-3-18 Taylor 3422 Butte T23N R4E north center third sec 30 Paradise SE quad; from bridge crossing West ranch Feather River, ca. 1/4-1/2 mi e and s along Ponderosa Way (Jordan Hill Rd), e of Magalia; 1600-1900 ft. 488 Comment
  CHSC32853  Erythronium multiscapideum William Askea 1981-4-22 11 Butte Ca. 50 m w of Butte Creek and 1.2 km n of Magalia Reservoir, 2.5 km n of Magalia. 725 Comment
  CHSC27786  Eschscholzia caespitosa Rene T. Retuta 1978-4-4 2 Butte .50 miles se of Cherokee Rd., ca. 5 miles n of Oroville, North Table Mountain. 396 Comment
  CHSC33140  Eschscholzia caespitosa J. D. Jokerst 1979-3-20 1155 A Butte Table Mountain. Top of North Table Mt, above the waterfalls at the west edge of the mountain S fork of Coal Creek Canyon. Comment
  CHSC52096  Eschscholzia caespitosa Andrew D. Lane 1984-4-22 9 Butte Salmon Hole, ca. 6.7 km ne of jct of Hwys 99 and 32, ca. 50 m n of Big Chico Creek. 115 Comment
  CAS-BOT-BC402649  Eschscholzia caespitosa Lowell Ahart 1988-3-27 5938 Butte West of the deep road cut, about 1/10 mile north of the bridge across the North Fork of the Feather River, about 1/4 mile north of the Poe Power House, about 2 miles south-east of Jarbo Gap 335 Comment
  CAS-BOT-BC402969  Eschscholzia californica A. A. Heller; H. E. Brown 1902-5-6 5456 Butte Berry Canyon (Near Clear Creek) Comment
  JEPS119618  Eschscholzia californica Lowell Ahart 2012-6-21 18220 Butte About 5 yards west of the Freeway, Lower Bidwell Park, Chico. Comment
  CHSC1196  Eschscholzia lobbii P. Delaplane 1965-3-30 13 Butte Along W. side of Cohasset Rd., 1/4 mi. S. W. of intersection of Cohasset Rd. and Keefer Rd. 213 Comment
  SEINET12092006  Eschscholzia lobbii Unknown 1979-1 17 Butte Small population ca 5 mi SE of the town of Cherokee on Cherokee Road on Table Mtn., 23 mi SE Comment
  UC1111604  Eschscholzia lobbii Herbert L. Mason 1941-4-6 12417 Butte w Cherokee 304 Comment
  RSA0010838  Eucalyptus camaldulensis L. Ahart 2009-6-12 15843 Butte East side of the deer pen, about 50 yards north of the Bear s Lair Picnic Area and Coastal Redwood Grove sign, about 130 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC34712  Eucephalus breweri M. S. Taylor; Lowell Ahart 1981-8-16 4212 Butte N side of rd 25N04, ca. 0.5 mi E of its jct with 52513, ca. 1 mi NE of Jones Meadow, ca. 6 mi NE of Stirling City. 1889 Comment
  CHSC54301  Euphorbia crenulata Vernon H. Oswald; Lowell Ahart 1991-6-5 4653 Butte Dirt road to Minnie-Ha-Ha Mine located on Big Chico Creek, on the west side of Hwy 32 ca. 1.5 miles (air) northwest of Platte Mtn Lookout, between Forest Ranch and Lomo. On roadside banks. 822 Comment
  UCD142580  Euphorbia maculata L. Ahart 1981-9-26 3200 Butte Along the Sacramento River, ca. 6 mi. W of Chico. 40 Comment
  CAS-BOT-BC202425  Euphorbia ocellata A. A. Heller 1916-9-5 12645 Butte Hills 8 miles north of Oroville Comment
  CHSC62356  Euphorbia spathulata B. Castro 1990-4-21 420 Butte Ca 3 mi SW of Paradise, off Honey Run Rd. Near top of embankment at foot of canyon hillside. 146 Comment
  CAS-BOT-BC312197  Eurybia radulina Lowell Ahart 1988-7-24 6131 Butte About 1/20 mile north-east of the intersection of Ponderosa Way and Loer Forebestown Road west of Sunset Hill near Forbestown 731 Comment
  CHSC37100  Euthamia occidentalis L. Ahart 1982-9-12 3798 Butte Along North Honcut Creek, Peter Ahart Ranch, ca. 1 1/4 mi n and 3 mi e of Honcut. 50 Comment
  CAS-BOT-BC310668  Euthamia occidentalis Lowell Ahart 1977-9-20 s.n. Butte Peter Ahart Ranch, Honcut. Near the edges of North Honcut Creek 50 Comment
  CHSC42497  Fallopia convolvulus Lowell Ahart 1987-6-9 5722 Butte On a sand bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  JEPS116069  Festuca arundinacea Lowell Ahart 2009-5-30 15797 Butte On dry soil, along a small stream, meadow, about 20 yards south of the fence and about 30 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway32, about 10 miles northeast of Chico 269 Comment
  CHSC49546  Festuca californica V. Oswald; L. Ahart 1988-6-17 3398 Butte North side of the dam at Lost Creek Reservoir. At the edge of the road bordering the reservoir. 1005 Comment
  CAS-BOT-BC278300  Festuca californica subsp. californica Lowell Ahart 1985-5-15 4998 Butte 1/8 mile east of the dirt road, about 1 1/2 miles north-east of Concow Res. 800 Comment
  SEINET10560618  Festuca elmeri Elihu Hall 1863-1 Hall s.n. Butte Bolander. Comment
  CHSC88159  Festuca occidentalis Lowell Ahart 2004-7-23 11298 Butte On the sides of a small stream, about 20 yards northwest of the dirt road to the West Branch Campground, about 50 yards southeast of the intersection of Humbug Road and Philbrook Reservoir Road, about 1 3/4 miles (air) west of Philbrook Reservoir Dam, about 3 miles (air) southeast of Butte Meadows. 1586 Comment
  SEINET10662355  Festuca occidentalis Lowell Ahart 2007-5-29 Ahart 13942 Butte T21N, R6E, Section 28. On the south side of the Dome Trail, trail leads to the Middle Fork of the Feather River, at the trailhead which is 3/10 mi E of Bean Creek Road, about 2 miles (air) NE of Big Bald Rock, about 16 mi (air) NE of Oroville. 844 Comment
  CAS-BOT-BC278628  Festuca subulata Lowell Ahart 1982-9-13 3812 Butte Along the banks of Pinkard Creek, Creek, ca. 1/8 mi. N of the Lost Creek Res. Dam, ca. 2.15 mi. NW of Strawberry Balley 1100 Comment
  SEINET10507967  Festuca subulata Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4107 Butte T21N R5E se/se sec 32. Ca. 1/8 mi e of jct of Oroville-Quincy Hwy & Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Foothill Woodland. 500 Comment
  SEINET11672004  Festuca subulata Unknown 1983-1 4107 Butte along Ponderosa Way ca 0.12 mi E of int Oroville Quincy Hwy & Ponderosa Way, ca 15 mi NE of Oroville Comment
  JEPS113262  Festuca subuliflora Lowell Ahart 2007-5-22 13915 Butte About 1/8 mile south of Bald Rock Dome, on the west side of Dome Trail, trail leads to the Middle Fork of the Feather River, about 200 yards northeast of trail head which is 3/10 mile east of Bean Creek Road, about 2 miles (air) northeast of Big Bald Rock 844 Comment
  CHSC50553  Floerkea proserpinacoides Vernon Oswald; Lowell Ahart 1990-7-5 4352 Butte Headwaters of Willow Creek, 0.7 mi (odometer) west of Humbug Rd along a logging road just south of Cold Springs (near Humbug Summit), ca. 4 mi east of Jonesville. 1950 Comment
  CHSC43057  Fragaria vesca L. P. Janeway 1987-6-5 2151 Butte Upper reach of Carey Gulch where rd 22N89 crosses it 0.5 mi from Oro Quincy Hwy. Edge of road near creek. 1097 Comment
  SD2199  Fragaria virginiana E. B. Copeland 1929-7-16 373 Butte Jonesville, in low woods 1550 Comment
  CAS-BOT-BC62901  Frangula californica subsp. tomentella John Thomas Howell 1959-9-20 34701 Butte Feather River Highway, 5.5 mi. below West Branch Bridge. Comment
  CAS-BOT-BC62946  Frangula californica subsp. tomentella Lowell Ahart 1968-5-8 972 Butte Peter Ahart Ranch, Honcut. 150 Comment
  HSC104007  Frangula californica subsp. tomentella L. Ahart, Linnea Hanson, Susan Bazell, Josephine Guardino 2012-5-17 18072 Butte Chico, Lower Bidwell Park; along a horse trail, ~50 ft. south of Vallombrosa Ave., ~ 0.25 mi. W of Peterson Drive 76 Comment
  SEINET8730880 Image available Frasera albicaulis Unknown 1946-1 2944 Butte S. 1, T. 20 N0. , R. 5 E. Comment
  CHSC104008  Fraxinus caroliniana Lowell Ahart; Wes Dempsey, J. Guardino, S. Mason, S. Green 2010-5-28 16742 Butte On the south side of the path, about 30 yards south of the Cedar Grove Parking Area in lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC223474  Fraxinus latifolia Lowell Ahart 1987-8-3 5849 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 274 Comment
  SEINET10457424  Fraxinus latifolia Mary Susan Taylor 1974-10-11 Taylor 327 Butte Along Sacramento River, in vicinity of the washout on River Road, ca. 10 mi W of Chico. Riparian Woodland. 61 Comment
  JEPS55691  Fritillaria G. E. See and H. M. Beard 1960-6-18 Butte Pinkston Canyon, Yankee Hill, Big Bend Road Yankee Hill; Pinkston Canyon, Yankee Hill 609 Comment
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Feb 23 2012
  CHSC28967  Fritillaria affinis J. D. Jokerst 1980-2-24 450 Butte E branch of Mud Cr ca 0.5 mi E of Richardsons Springs. 243 Comment
  CAS-BOT-BC130315  Fritillaria eastwoodiae L. C. Hanson 1987-4-15 s.n. Butte Along Milsap Bar Road, Plumas National Forest Comment
  CHSC29033  Fritillaria micrantha J. D. Jokerst 1980-3-28 525 Butte E of the northern most portion of North Table Mt. 365 Comment
  SEINET3992162  Fritillaria pluriflora A. A. Heller 1916-3-5 12278 Butte Along the highway 10 miles north of Chico Comment
  UC726161  Fritillaria pluriflora A. A. Heller 1916-3-5 12278 Butte along the highway 10 mi n of Chico Comment
  CAS-BOT-BC508147  Fritillaria recurva Flower Show 1929-4-1 s.n. Butte Unspecified Comment
  JEPS97588  Fritillaria recurva R. D. Stone and W. B. Davilla 1984-4-21 595 Butte ca. 0.6 mi ENE of De Sabla Powerhouse; Butte Creek drainage 701 Comment
  POM109786  Fritillaria recurva C. C. Bruce 1897-02 2026 Butte Little Chico Comment
  SEINET10905360  Fritillaria recurva Mary Susan Taylor 1981-5-21 Taylor 3784 Butte T23N R5E south central border sec 8, Pulga SW quad. Jct of Camp Creek and Rd 23N10, ca. 4 mi N of Pulga on Feather River Hwy 70. Granite soils; Yellow Pine Forest; 3300 ft. 1006 Comment
  CHSC20972  Galium bolanderi M. S. Taylor 1975-9-12 906 Butte Ca. 24 mi NE of Chico, ca. 500 ft W of Hwy 32. 1066 Comment
  CHSC28017  Galium bolanderi M. S. Taylor 1978-7-18 1671 Butte On west side of Hwy 32, ca. 1/4 mi N of Forest Ranch. 718 Comment
  UCD121612  Galium bolanderi Harriet Sindel 1970-5-10 8 Butte Cohasset Highway 11.5 miles northeast of intersection with Keefer Lane, Cohasset. 609 Comment
  UC1586556  Galium divaricatum Lowell Ahart 1991-5-12 6652 Butte about 1 1/4 mi n and 2 1/2 mi e Honcut (about 12 mi se of Oroville, banks of a small wash); Peter Ahart Ranch 48 Comment
  SD4923  Galium grayanum subsp. grayanum E. B. Copeland 1930-7-25 474 Butte Jonesville, in crevices, dry rocky ridge 1700 Comment
  CHSC48885  Galium grayanum var. grayanum Vernon H. Oswald 1983-8-17 988 Butte Trail between Humboldt Summit and Humboldt Peak, ca 3 mi NE of Jonesville. 2097 Comment
  CHSC61008  Galium murale Lowell Ahart 1993-5-31 6956 Butte In Nature Garden, Durham Elementary School, Durham. 51 Comment
  SEINET10500724  Galium murale Mary Susan Taylor 1980-4-16 Taylor 2494 Butte T21N R4E s sec 17 Cherokee quad. Lake Oroville State Recreation Area, up to 0.5 mi SE of Parish Camp, just S of Lime Saddle Memorial Park, ca. 5 mi S of Paradise; Foothill Woodland. 305 Comment
  CHSC42431  Galium parisiense Lowell Ahart 1987-5-6 5537 Butte At the Poe Power House that is along the North Fork of the Feather River, about 2 miles south-east of Jarbo Gap. 283 Comment
  CHSC108322  Galium trifidum var. pacificum Lowell Ahart 2011-8-23 17651 Butte In the large meadow, Pinkard Creek flows through the meadow, east of the corral, about 1 mile north of Lost Creek Reservoir Dam, about 4 miles (air) northeast of Clipper Mills. 1133 Comment
  CHSC51012  Galium trifidum var. pacificum Lowell Ahart 1990-7-15 6554 Butte West of the Enterprise Boat Launch Area, about 1/2 mile north-west of the Enterprise Bridge across Lake Oroville. 268 Comment
  CHSC61011  Galium trifidum var. pacificum Lowell Ahart 1993-6-26 7017 Butte Near center, section 24. North of the dirt road, about 1/4 mile west of the Lost Creek Reservoir. 1036 Comment
  CAS-BOT-BC169935  Garrya fremontii Wm. S. Levis 1931-7-3 s.n. Butte Middle Feather River Comment
  CHSC3588  Garrya fremontii Susan Carrauthers 1966-3-5 29 Butte E. of city of Chico along highway 32 toward Susanville ca. 12 mi. Comment
  HSC102784  Garrya fremontii L. Ahart 2012-3-2 17759 Butte About 9 mi. NE of Chico, ~200 yds. west of Hwy.32, ~200 yds. N of Ten Mile House Rd. 423 Comment
  SEINET10453484  Garrya fremontii Mary Susan Taylor 1980-4-18 Taylor 2530 Butte On dry open bluff, on E side of Humbug Road, ca. 3 mi SW of Nimshew; Foothill Woodland. With J.D. Jokerst. 518 Comment
  UCD66573  Gastridium phleoides A. A. Heller 1914-6-2 11474 Butte 8 miles north of Oroville. Comment
  CHSC61312  Gaultheria ovatifolia Lowell Ahart 1993-8-8 7149 Butte About 1/2 mile north-west of Lewis flat, about 3/4 mile north-west of the Sly Creek Dam. 1097 Comment
  UC1563295  Gaultheria ovatifolia V. Oswald, L. Ahart, and L. Hanson 1990-8-14 4440 Butte 0.75 mi w of n end of Sly Creek Reservoir (French Creek on the n side of Forest Road 21N16); French Creek, Forest Road 21N16 1219 Comment
  CDA38135  Gayophytum diffusum subsp. parviflorum L. Ahart 2003-8-17 10513 Butte North edge of the meadow, about 100 yards northeast of the buildings in Butte Creek House Meadow, about 3 miles northeast of Snag Lake, about 7 miles (air) east of Butte Meadows. Comment
  CHSC27998  Gayophytum heterozygum M. S. Taylor 1978-7-18 1672 Butte On w side of Hwy 32, ca. 1/4 mi n of Forest Ranch. 718 Comment
  CHSC37449  Gayophytum humile R. A. Schlising; R. Banchero, D. Ikeda 1980-6-26 3787 Butte 3.2 miles se of Butte Meadows on Bull Hill Road (= Skyway). In small meadows along Bull Creek. 1511 Comment
  CAS-BOT-BC208057  Genista monspessulana John Thomas Howell 1959-9-20 34676 Butte Lower foothills, eastern outskirts of Oroville 60 Comment
  UC1564769  Gentiana newberryi V. Oswald and L. Ahart 1989-8-22 3956 Butte 3.5 mi (air) se Jonesville (on the e side of Humbug Rd, Butte Creek House Meadow) 1767 Comment
  CHSC48452  Gentianopsis simplex Vernon Oswald 1987-7-16 3117 Butte Slightly w of the Skyway 1.4 mi s of Inskip. Meadow. 1426 Comment
  SEINET2140398  Gentianopsis simplex E. B. Copeland 1930-1 440 Butte Jonesvilee, Butte County. 1500 Comment
  RSA0028178  Geranium carolinianum L. Ahart 2009-4-26 15649 Butte Upper Bidwell Park: on N side of Ten Mile House Road, about 100 yards W of the intersection of Hwy 32 and Ten Mile House Road, about 10 miles NE of Chico. 462 Comment
  UCD103290  Geranium carolinianum L. Ahart 1982-4-21 3290 Butte Peter Ahart Ranch. Near North Honcut Creek, about 1 1/4 miles north and 3 miles east of Honcut. 50 Comment
  JEPS119716  Geranium dissectum Lowell Ahart 2012-4-30 17926 Butte About 20 yards southeast of the intersection of South Rim Trail and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  JEPS122283  Geranium dissectum Lowell Ahart 2014-4-16 19378 -A Butte On the sides but near the top of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley. Comment
  CHSC3975  Geranium molle J. W. Cherry 1967-3-26 Butte Common in open grassy areas along either side of Bidwell Park road, .3 mi. e. of Salmon Hole. 170 Comment
  SEINET10870230  Geranium molle Mary Susan Taylor 1976-3-30 Taylor 1039 Butte Ca. 15-50 ft E of Cherokee Rd, ca. 1 mi S of Cherokee, on N side of Table Mt; with Mimulus tricolor. 305 Comment
  CHSC64211  Geum macrophyllum S. C. Morey 1983-8-3 697 Butte Chico Meadows. On e side of Scout Rd., ca. 1 mi n of its jct with Humboldt Rd. at Butte Meadows. 1292 Comment
  CHSC41371  Gilia capitata subsp. mediomontana R. A. Schlising 1980-6-17 3731 Butte N of De Sabla, along the Skyway, ca. 1.5 mi SW of junction with Coutelenc Road at Lovelock. 780 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
  SEINET12350112  Gilia tricolor subsp. tricolor Unknown 1998-4-11 7 Butte Chico, Upper Bidwell Park about 1 km E of Horseshoe Lake, along gravel road that follows Chico Creek 104 Comment
  SEINET10840482  Githopsis pulchella subsp. campestris Carter 1965-5-15 Carter 201 Butte On east side of Highway 32, 10.7 miles northeast of 99E overpass at Chico 305 Comment
  CDA11953  Githopsis specularioides G. F. Hrusa, J. Hart 1989-4-15 5917 Butte Sierra Nevada; Summit of North Table Mountain. Comment
  CHSC32128  Githopsis specularioides L. Ahart 1973-5-6 213 Butte Swedes Flat Rd, near Bangor. 457 Comment
  SEINET10464572  Githopsis specularioides A. Arthur Heller 1915-4-20 Heller 11853 Butte Chico-Centerville road 3 miles from Chico at the lower limit of the digger pine belt Comment
  JEPS87474  Glyceria declinata Lowell Ahart 1993-4-5 6927 Butte s. side of Cottonwood Rd. ca. 1/2 mi. e. of Hwy. 99 36 Comment
  JEPS98452  Glyceria declinata Lowell Ahart 2000-5-21 8377 Butte 10 mi NW of Oroville (slickens from the Cherokee mine, E side of Clark Road (Hwy 191), 200 yds S of Dry Creek) 60 Comment
  JEPS115661  Glycyrrhiza lepidota Lowell Ahart 2009-5-30 15801 Butte South of a small stream, meadow, about 30 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico 209 Comment
  POM39096  Gnaphalium chilense C. C. Bruce 1897-05 2108 Butte Little Chico. Comment
  SEINET10473778  Gnaphalium chilense Lowell Ahart, Peter Ahart 1983-7-29 Ahart 4226 Butte T21N R6E ne sec 2. Ca. 1/4 mi w of Milsap Bar, ca. 25 mi ne of Oroville. Yellow Pine Forest; 500 m. 500 Comment
  CHSC38352  Gnaphalium luteoalbum Vernon Oswald 1983-4-25 391 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.3 mi e of the power lines. 353 Comment
  JEPS120604  Gnaphalium palustre Lowell Ahart 2013-11-17 19258 Butte McCabe Creek, below the high water line of Lake Oroville, about 5/8 mile southwest of the enterprise Bridge across Lake Oroville. Comment
  CDA13240  Goodyera oblongifolia G. F. Hrusa, T. D. Wilfred 1996-7-8 13087 Butte Plumas National Forest; Near Old Railroad Grade Rd., Paradise Lake Dam, approx. 3 m. N of Magalia. Comment
  UCD132552  Grindelia camporum Dr. Freeman 1974-6-25 s.n. Butte Gridley. Comment
  CHSC62095  Grindelia hirsutula var. davyi L. P. Janeway 1993-8-7 4507 Butte Plumas National Forest. Along Road 21N25A at southwestern end of Watson Ridge; ca 2 mi east of Bald Rock Dome. Along edges of dirt road. 1082 Comment
  CDA3433  Gypsophila elegans L. Ahart 2001-4-15 8726 Butte On the north side of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 mile east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. Comment
  UC426942  Hackelia californica E. B. Copeland 1930-6-29 449 Butte Jonesville 1550 Comment
  UC480671  Hackelia nervosa H. F. Copeland 1931-6-11 Butte woods above Butte Creek Meadows; Jonesville Comment
  CAS-BOT-BC282857  Hainardia cylindrica Lowell Ahart 1974-6-3 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  RSA69248  Hastingsia alba Frank W. Peirson 1926-6-21 6776 Butte Butte Meadow, Humboldt Road. Comment
  CHSC46332  Hedypnois cretica Lowell Ahart 1989-5-23 6235 Butte Along the edge of a new subdivision road, 1/2 mile east of Dunstone Drive, about 1/2 mile north of Bangor Park Road, west of Bangor. 76 Comment
  RSA516592  Hedypnois cretica R. C. Bacigalupi, G. Thomas Robbins, Francia Chisaki 1956-4-19 5603 Butte Roadside at bridgehead across N Fork of Feather River, Nelson Bar road. 198 Comment
  CHSC45679  Helenium bigelovii Vernon Oswald 1983-7-6 819 Butte Near Scout Rd. 1.2 mi n of Butte Meadows. 1325 Comment
  CAS-BOT-BC309402  Helenium puberulum John Thomas Howell 1959-9-20 34710 Butte Feather River Highway at West Branch bridge Comment
  CAS-BOT-BC314696  Helianthella californica var. californica A. A. Heller 1915-5-25 11897 Butte Ridge above Enterprise in teh Sierra Nevada 609 Comment
  CAS-BOT-BC314757  Helianthella californica var. nevadensis E. B. Copeland 1931-6-22 695 Butte Jonesville 2150 Comment
  CHSC11823  Helianthella californica var. nevadensis E. B. Copeland 1931-6-22 695 Butte Jonesville, at 'the Summit'. 2150 Comment
  CHSC42463  Helianthella californica var. nevadensis Lowell Ahart 1987-5-22 5669 Butte About 1/8 mile south-east of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CAS-BOT-BC305517  Helianthus bolanderi A. A. Heller 1914-9-3 11761 Butte On the Chico-Hamilton road 6 miles from Chico Comment
  CHSC44378  Helminthotheca echioides Lowell Ahart 1988-6-23 6060 Butte Along the east side of Wyandotte Miners Ranch Road, about 1/2 mile south of Olive Highway, about 5 miles south-east of Oroville. 259 Comment
  CHSC31567  Hemizonia congesta subsp. luzulifolia L. Ahart 1974-10-5 658 Butte Near Honcut. 45 Comment
  UC186060  Hemizonia congesta subsp. luzulifolia H. M. Hall 1914-8-1 9825 Butte near Chico Comment
  CAS-BOT-BC309787  Hemizonia congesta subsp. luzulifolia Lowell Ahart 1982-9-9 3768 Butte About 100 meters north of the Check-in-Station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CDA7021  Hemizonia congesta subsp. luzulifolia A. C. Browne 1951-8-23 Butte Robinson s Corners, Gridley-Oroville Road. 0 Comment
  CHSC33681  Hemizonia pungens subsp. septentrionalis L. Ahart 1981-5-16 2803 Butte On Gray Lodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  SD3460  Heracleum maximum E. B. Copeland 1930-6-29 Butte Jonesville 1500 Comment
  CHSC44868  Hesperevax acaulis var. robustior Lowell Ahart 1979-4-17 1828 Butte On a bank of North Honcut Creek, about 1/2 mile north of Avacado Avenue, about 3 air miles north-west of Bangor. 91 Comment
  JEPS108885  Hesperocnide tenella Lowell Ahart 2006-4-27 12535 Butte Peter Ahart Ranch, about 1 1/4 miles north and 1 1/4 miles east of Honcut 45 Comment
  CHSC78153  Hesperolinon californicum Lowell Ahart 2000-5-17 8368 Butte Near the southeast margin of the Thermalito Afterbay, west of the poor dirt road, about 1/8 mile north of the Richvale Highway, about 3/4 mile east of Highway 99, about 7 1/4 miles (air) west of Oroville. 42 Comment
  CDA18369  Heteranthera limosa G. D. Barbe 1978-8-14 2438 Butte Biggs Rice Experiment Station. 0 Comment
  JEPS116097  Heterocodon rariflorum Lowell Ahart 2009-5-15 15699 Butte About 60 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico 267 Comment
  JEPS93842  Heterocodon rariflorum Lowell Ahart 1998-6-9 7998 Butte about 7 air mi n of Oroville (about 1/2 mi nw of the Ione oak tree, nw of cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 396 Comment
  UC897754  Heterocodon rariflorum A. A. Heller 1914-7-23 11616 Butte Chico Meadows 1219 Comment
  SEINET10460699  Heterocodon rariflorum Edwin B. Copel 1929-7-16 Copeland 398 Butte Jonesville 1550 Comment
  SEINET10460748  Heterocodon rariflorum Mary Susan Taylor 1980-5-27 Taylor 2718 Butte N and S sides of Bald Rock Road, ca. 1 mi E of Lake Madrone; Yellow Pine Forest. 671 Comment
  SEINET10483352  Heteromeles arbutifolia Mary Susan Taylor 1975-10-29 Taylor 967 Butte Butte Creek, ca. 2-500 yds S of Humbug Road, ca. 2 mi E of junction of the Skyway and Humbug Road; with Platanus racemosa, Rhus trilobata. Comment
  SEINET10542116  Heteromeles arbutifolia Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-5 Conrad 7028 Butte 2.6 miles w of paradise on chico road 610 Comment
  SEINET11908428  Heteromeles arbutifolia Unknown 1978-1 6 Butte 20 ft. S of hwy. 32, 9 mi E. of jct of hwys 99 and 32. 9 mi, E of Chico 366 Comment
  CHSC66851  Heterotheca oregona var. compacta Vernon H. Oswald 1996-9-30 8289 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Northern Sacramento Valley. On the W side of the farm road between Camp 2 East and Camp 2 West in The Nature Conservancy easement area, near the Riparian Sanctuary. [Label says 'T20N R01W S15 SE1/4 of NW1/4']. 30 Comment
  CHSC83120  Heterotheca oregona var. compacta Lowell Ahart 2002-9-27 9939 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  UC114811  Heuchera micrantha var. erubescens Mrs. R. M. Austin Mar 1896 673 Butte Little Chico Canyon Comment
  CHSC25349  Heuchera micrantha var. pacifica Marc P. Hayes 1977-4-22 15 Butte Scattered population, ca. 200 m from confluence of Heinz Crk. and North Fork of Feather River, ca. 20 km nw Paradise. 455 Comment
  RSA443118  Hoita macrostachya L. Ahart 1985-6-30 5080 Butte About 2.5 miles northeast of Forbestown. 869 Comment
  CAS-BOT-BC280712  Holcus lanatus John Thomas Howell; Gordon H. True 1967-6-11 42562 Butte On northwest side of Feather River Canyon near Pulga Bridge Comment
  CAS-BOT-BC280716  Holcus lanatus Lowell Ahart 1981-9-15 3156 Butte One half mile N of the Lost Creek Reservoir 1100 Comment
  CDA2179  Holcus lanatus L. Ahart 2000-7-17 8594 Butte Peter Ahart Ranch, about 12 miles (air) southeast of Oroville. about 1 1/2 miles north and 1 1/2 miles east of Honcut, Comment
  CAS-BOT-BC150115  Holodiscus microphyllus var. glabrescens H. F. Copeland 1928-8-14 398 Butte Near Jonesville. Between Jones Creek and Scotch-John Creek 1828 Comment
  CHSC58951  Holodiscus microphyllus var. glabrescens Lowell Ahart 1992-7-26 6842 Butte Slope, on the west side of a stream, about 1/2 mile north of the Carr Mine, about 2 (air) miles south of Snow Mountain. 1767 Comment
  CHSC71214  Hordeum brachyantherum subsp. brachyantherum Lowell Ahart 1998-6-9 7993 Butte About 3/8 mile northwest of the lone oak tree, northwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 388 Comment
  CHSC3923  Hordeum jubatum A. K. Revard 1967-4-15 16 Butte In ditch, ca. 12 ft. s of Royles Rd., ca. 2 mi w of Hwy. 99, and ca. 19 mi n w of Chico. 60 Comment
  CHSC42373  Hordeum marinum subsp. gussoneanum Lowell Ahart 1987-5-6 5563 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC56632  Hordeum marinum subsp. gussoneanum J. Lund 1980-4-18 Butte 0.9 mi east of Hicks Lane on the south side of Keefer Road, ca 50 ft from the edge of the road. 91 Comment
  HSC92442  Hordeum marinum subsp. gussoneanum L. Ahart 1975-5-12 757 Butte Peter Ahart Ranch, about 1 1/2 mi. N and 1 mi. E of Honcut. 12 mi. S of Oroville. Comment
  CHSC61316  Hosackia crassifolia var. crassifolia Lowell Ahart 1993-7-29 7126 Butte Along a logging road, about 1/8 mile north-west of the Snow Mine, about 2 1/2 miles north-east of the Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1676 Comment
  CHSC41450  Hosackia incana Lowell Ahart 1986-7-2 5343 Butte Along the edge of a dirt road, about 1/2 mile south of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1706 Comment
  CHSC55469  Hydrocotyle umbellata L. P. Janeway 1991-4-21 3916 Butte About 1 1/4 mi south of Wyandotte and 1/8 mi west of Dunstone Road. 167 Comment
  CHSC46200  Hydrophyllum occidentale L. P. Janeway 1988-6-25 2879 Butte Creek along Bull Hill Rd 2.2 mi from the Skyway. Disturbed (logged) slope just above the creek. 1508 Comment
  CAS-BOT-BC175965  Hypericum Lowell Ahart 1977-10-15 s.n. Butte Peter Ahart Ranch, Honcut. Along edge of North Honcut Creek 50 Comment
  CAS-BOT-BC400828  Hypericum anagalloides A. A. Heller 1916-9-8 12652 Butte Ten mile house east of Chico Comment
  JEPS87158  Hypericum formosum var. scouleri Lowell Ahart 1992-8-2 6899 Butte ca. 3 (air) mi. n.e. Concow Reservoir (Concow Meadow, bottom of Concow Creek); Concow Meadow, Concow Creek 1097 Comment
  CDA5079  Hypericum perforatum D. G. Kelch 2006-8-2 6 .342 Butte Along Butte Creek, north of Durham-Dayton Hwy. Comment
  UC204399  Hypericum perforatum A. A. Heller 1914-7-13 11570 Butte hills ca. 5 mi. e. Oroville (also between Red Bluff & Redding, and in Sacramento canyon some miles below Delta <in> Shasta Co.) Comment
  CAS-BOT-BC401332  Hypericum scouleri A. A. Heller 1914-7-23 11599 Butte In Chico Meadows 1219 Comment
  CAS-BOT-BC401336  Hypericum scouleri E. B. Copeland 1930-7-18 426 Butte Jonesville 1550 Comment
  CHSC29113  Hypochaeris glabra M. S. Taylor; J. D. Jokerst 1980-4-6 2454 Butte On s side of Melody Lane, ca. 1 mi e of its jct with Honcut-Palermo Rd, ca. 5 mi s of Palermo. 38 Comment
  CAS-BOT-BC312925  Hypochaeris glabra E. B. Copeland 1899-4-4 s.n. Butte Chico [however note comments in record; possibly near Vina in Tehama Co.] Comment
  SEINET10473837  Hypochaeris glabra Mary Susan Taylor 1981-5-19 Taylor 3809 Butte T22N R5E sw sec 23. Berry Creek quad. Both sides of 22N31, on Chibo Ridge ca. 2 mi NW of its jct with French Creek, ca. 4 air mi S of Coyote Gap, ca. 17 air mi NE of Oro- ville. Yellow Pine Forest; gravelly decomposed granite: 2800 ft. 853 Comment
  POM109038  Iris C. C. Bruce 1898-04 2068 Butte Foothills Butte County Comment
  CAS-BOT-BC133551  Iris hartwegii Clarence R. Quick 1952-6-30 52 -97 Butte Ridge top, Big Bar Mt., east of Pulga Comment
  HSC23349  Iris hartwegii Carolyn Fante 1971-10-17 17 Butte S side of Honey Run Rd. 122 Comment
  RSA136349  Iris hartwegii Lee W. Lenz, E. K. Balls 1955-5-13 20689 Butte Just south of Paradise on road to Oroville 549 Comment
  RSA565165  Iris hartwegii R. J. Shaw 1993-5-23 5092 Butte ca. 15 miles east of Chico at junction of Highway 32 and Sugar Pine Place 1000 Comment
  CHSC27771  Iris macrosiphon David Bendix 1978-4-18 15 Butte 5 m sw of intersection of Neal Road with Skyway, Paradise. 530 Comment
  CHSC87550  Iris pseudacorus R. D. Fischer 2004-3-29 73 Butte Collected in backyard pond from house on Floral Avenue in Chico. Plants in turn were collected from another Chico home and they in turn were collected from margins of Edgar Slough (Comanche Creek) next to Hwy 99, south Chico. 60 Comment
  CHSC43572  Isoetes nuttallii Vernon Oswald 1984-2-22 1083 Butte Upper Bidwell Park, Chico, ca. 100 ft n of Upper Park Rd. at Diversion Dam. 134 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
  SEINET11718752  Isoetes nuttallii Unknown 1985-1 4945 Butte E branch of Potter Ravine, ca 2.25 mi N of Oroville Dam 350 Comment
  CHSC45588  Isolepis setacea M. S. Taylor 1981-5-6 3622 Butte W side of rd leading to Jackson Ranch, ca. 5 air mi N of Feather Falls. 1127 Comment
  JEPS98516  Isolepis setacea Lowell Ahart 2000-7-11 8564 Butte on the N side of Lumpkin Ridge Road, upper west branch of Know-nothing Creek, about 1 mile SW of the intersection of Lumpkin Ridge Road, road to Fall River, and the County Road, about 5 miles (air) NE of Feather Falls. 1219 Comment
  CHSC93648  Juglans californica var. hindsii Paul Kirk; Joe Silveira 2001-5-25 2 Butte Rancho Llano Seco, 1.8 km WSW of ranch house, just off the ranch road south of 'The Lagoon' around Ryan Island. 30 Comment
  CAS-BOT-BC210160  Juncus acuminatus Peter Rubtzoff 1978-8-6 9248 Butte Thermalito Forebay, North Area in Lake Oroville State Recreation Area. Near picnic area just off Hwy. 70 Comment
  CHSC76017  Juncus articulatus Lowell Ahart; Vernon H. Oswald 1999-8-13 8147 Butte Along the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 32 Comment
  CDA39167  Juncus articulatus G. D. Barbe, T. C. Fuller 1982-6-14 3677 Butte Black Bart Road 0.5 mile west of Forbestown Road. Comment
  SEINET10472239  Juncus bufonius Lowell Ahart, Peter Ahart 1982-6-26 Ahart 4141 Butte T20N R5E nw/nw sec 15. Along Ponderosa Way (Big Ridge Rd), just a little s of the East Fork Canyon Creek, ca. 14 mi ne of Oroville. Foothill Woodland; 500 Comment
  CHSC41987  Juncus bufonius var. bufonius Lowell Ahart 1986-11-14 5471 Butte Pond, about 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville. 36 Comment
  CHSC61346  Juncus bufonius var. bufonius Lowell Ahart 1993-7-29 7118 Butte Near a seep, about 2 1/2 miles north-east of Bald Mountain, about 6 1/2 miles north-east of Stirling City. 1584 Comment
  CHSC99318  Juncus bufonius var. bufonius Lowell Ahart 2008-5-30 14791 A Butte Along a small drainage, northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville. 976 Comment
  UC1609069  Juncus bufonius var. bufonius Lowell Ahart 1993-6-20 6992 Butte about 1 air mi nw of the Lost Creek Reservoir Dam (Jackass Flat, Mooreville Ridge); Jackass Flat, Mooreville Ridge 1158 Comment
  UCSB63749  Juncus bufonius var. congestus Ahart, Lowell 1998-5-2 Butte T17N, R2E, southwest 1/4 Section 7; graded north side of Evans Reimer Road; about 1/4 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  CHSC31912  Juncus bufonius var. occidentalis L. Ahart 1978-5-1 1680 Butte Peter Ahart Ranch, Honcut. 50 Comment
  CHSC42517  Juncus bufonius var. occidentalis Lowell Ahart 1987-5-6 5575 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC55454  Juncus capitatus L. P. Janeway 1991-4-12 3893 Butte 1 1/4 mi east of Palermo-Honcut Road, ca 3 mi north of Honcut. 45 Comment
  CHSC82263  Juncus capitatus Lowell Ahart 2002-4-24 9535 Butte Vernal pools and swales, in a field, on the east side of Lone Tree Road, about 1 1/8 miles north of Cox Lane, about 3 miles (air) southwest of Palermo, about 7 miles (air) south of Oroville. 35 Comment
  CHSC42897  Juncus covillei Lowell Ahart 1987-7-8 5814 Butte Near a stream, along Walker Plains Road, about 1/8 mile north of Coyote Gap, about 5 miles east of Pulga. 1280 Comment
  CHSC49609  Juncus drummondii Vernon Oswald; Lowell Ahart 1987-7-1 3084 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. On the s edge of the large lake. 1935 Comment
  JEPS98528  Juncus dubius Lowell Ahart 2000-6-17 8485 Butte 2 mi S of Paradise (1/4 mi NE of Kunkle Reservoir, E of the Pentz Magalia Road) 548 Comment
  CHSC111289  Juncus effusus subsp. effusus Barbara L. Wilson; Lowell Ahart, Lawrence Janeway, Peter F. Zika 2011-8-5 16758 Butte 6.5 miles from junction (which is at edge of community of Feather Falls) with Lumpkin Road, on paved logging road that people use instead of gravel Lumpkin road; UTM 10 655439 east, 4387540 north, +/- 49 feet (NAD83). Comment
  CDA43012  Juncus effusus subsp. pacificus L. Ahart 2008-7-23 15152 Butte On the east side of McCabe Creek, below the high water line of Lake Oroville, about 100 yards southwest of the poor parking area, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville. Comment
  CHSC28546  Juncus effusus subsp. pacificus M. S. Taylor 1978-7-18 1721 Butte On n side of Butte Creek, ca. 1/8 mi w of Road Island jct, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground, sw of Jonesville. 1524 Comment
  CHSC99762  Juncus effusus subsp. pacificus Lowell Ahart 2008-7-23 15141 Butte On the east side of Sucker Creek, about 5 yards north of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  JEPS113843  Juncus effusus subsp. pacificus Lowell Ahart 2007-7-11 14288 Butte About 100 yards west of the high gravel road (at turn, before washout), about 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 5 miles (air) southwest of Oroville 35 Comment
  CHSC78336  Juncus ensifolius Lowell Ahart 2000-6-27 8523 Butte North part of Big Bald Rock, area is about 100 yards south and west of the north and east forest line, about 3 miles (air) east of Madrone Lake, about 12 miles (air) northeast of Oroville. 963 Comment
  JEPS104263  Juncus ensifolius Lowell Ahart 2003-6-30 10336 Butte In the gutter on the n side of Fields Ridge Rd, n of the Ponderosa Reservoir, ca 3 mi (air) n of Forbestown. 491 Comment
  UC1564788  Juncus hemiendytus var. hemiendytus V. Oswald and L. Ahart 1989-6-27 3830 Butte ca 3.3 air mi se Jonesville (Humbug Rd at Butte Creek); Butte Creek 1767 Comment
  CHSC47554  Juncus howellii Lowell Ahart 1981-8-15 3047 Butte On the south side of the dirt road, about 1 mile east of Coon Hollow Road, southeast of Snag Lake, about 10 miles north of Inskip. 1524 Comment
  UC1438369  Juncus leiospermus var. ahartii Lowell Ahart 1978-5-1 1692 Butte Peter Ahart Ranch Honcut 50 Comment
  CAS-BOT-BC110139  Juncus leiospermus var. leiospermus Clare B. Hardham 1978-4-17 21566 Butte Lava Table Mountain. Comment
  CHSC70855  Juncus leiospermus var. leiospermus Lowell Ahart 1998-4-29 7953 Butte Northeast of the large parking area on North Table Mountain, on the east side of Cherokee Road, about 7 miles north of Oroville. 426 Comment
  JEPS110154  Juncus leiospermus var. leiospermus Lowell Ahart 2006-5-8 12588 Butte Margins of a vernal pool where there is basalt shelfing, about 100 yards south of the Gray Pine on the rim of Coal Canyon, about 1 3/4 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Or 354 Comment
  UC600801  Juncus nevadensis H. F. Copeland 1932-8-17 Butte Jonesville 2000 Comment
  SEINET11787693  Juncus nevadensis R. A. Schlising, Jokerst, J. D. 1982-1 1653 Butte easternmost pond on bench along S edge of Coon Hollow 1707 Comment
  JEPS122163  Juncus nevadensis var. nevadensis Lowell Ahart 2014-8-13 19709 Butte About 110 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  CHSC32377  Juncus occidentalis J. D. Jokerst; L. Ahart, M. S. Taylor 1980-4-7 562 Butte Edges of creek. E of the jct. of Upper Rocky Honcut Cr. and Swedes Flat Rd., (E of the town of Rackerby and SE of the town of Oroville). Comment
  CHSC57158  Juncus orthophyllus L. P. Janeway 1988-6-14 2778 B Butte Ewalt Camp; near meadow along West Branch Butte Creek 2.0 mi east from Hwy 32 by dirt road. 922 Comment
  UC600813  Juncus parryi H. F. Copeland 1930-7-12 Butte above Butte Creek House; Jonesville Comment
  CDA34630  Juncus tenuis L. Ahart 2009-6-19 15918 Butte About 60 yards northwest of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 2/3 mile (air) west of Highway 32, about 10 miles northeast of Chico. Comment
  JEPS118345  Juncus triformis Lowell Ahart 2011-7-9 17563 Butte Open area of almost bare rock about 1/4 mile east of Little Bald Rock, about 2 miles (air) southeast of Brush Creek, about 15 miles (air) northeast of Oroville 1009 Comment
  CHSC28748  Juncus uncialis James D. Jokerst 1978-4-12 121 Butte Richvale Vernal Pools, 1/4 mi. S. of the intersection of Hwy 162 and Hwy 99, along and W. of the latter. Comment
  JEPS113749  Juncus usitatus Lowell Ahart 2007-8-3 14405 Butte On the west side of a large canal, on the west side of Aguas Frias Road (Goodspeed Watt), about 6 miles (air) northwest of Richvale 29 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
  RSA592529  Keckiella breviflora subsp. glabrisepala S. O. Mattoon 1970-6-12 18 Butte Ponderosa Way Forest Road at Mud Creek; 5 air miles ESE Cohasset. 671 Comment
  CAS-BOT-BC235677  Keckiella breviflora var. glabrisepala A. A. Heller; H. E. Brown 1902-5-6 5471 Butte Berry Canyon (Near Clear Creek) Comment
  CHSC4140  Kumlienia hystricula R. Carter 1966-4-28 379 Butte Found in Feather R. Canyon 11 mi. NW of Butte-Plumas Co. line along N side of Hwy 70. On cliff above road just S of water fountain. 701 Comment
  CAS-BOT-BC340328  Kyhosia bolanderi A. A. Heller 1914-8-7 11653 Butte Butte Meadows 1219 Comment
  CHSC96358  Kyllinga brevifolia T. C. Fuller 1962-12-7 9952 Butte Sacramento Valley. 100 sq ft infestation in sun and semi-shade in lawn of Cynodon dactylon and Paspalum dilataum, 282 Chico Rd, Oroville. Comment
  CHSC63697  Lactuca canadensis Lowell Ahart 1994-10-23 7568 Butte Along the edge of the water ditch, about 3 miles north of De Sabla Reservoir, about 4 miles (air) west and 1/2 mile north of Stirling City. 853 Comment
  SEINET10473868  Lactuca saligna Mary Susan Taylor 1977-8-16 Taylor 1443 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  SEINET10474760  Lactuca scariola var. integrata Mary Susan Taylor 1977-8-16 Taylor 1452 Butte Butte College Campus, ca. 15 mi S of Chico. With Marc Hayes. 61 Comment
  CHSC32543  Lactuca serriola S. Posner 1972-9-21 Butte 100 yds. west of Nord Ave, 200 yards south of Sacramento Ave., in almond orchard. Chico. Comment
  UCD133533  Lactuca serriola L. Ahart 1983-9-19 4457 Butte around 1/8 mile south of the Graylodge Wildlife Refuge headquarters, around 12 mile southwest of Gridley. 35 Comment
  JEPS19943  Lagophylla glandulosa R. F. Hoover 1936-5-21 1169 Butte 7 mi n Chico Comment
  UC905683  Lagophylla glandulosa David D. Keck 1930-7-25 974 Butte on Forbestown road 6.5 mi e Oroville; Sierra Nevada 425 Comment
  CAS-BOT-BC341322  Lagophylla glandulosa C. B. Wolf; E. R. Johnson 1934-10-5 6159 Butte 11 mi. from Oroville on rd. to Paradise, Sacramento Valley 152 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
  CHSC30691  Lasthenia californica M. S. Taylor 1980-3-1 2352 Butte Near Elliot Spring House, s side of Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  CHSC40551  Lasthenia californica Ahart; Jokerst 1985-3-24 4869 Butte West of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  POM29967  Lasthenia californica C. C. Bruce 1897-12 2071 Butte [Unspecified] Comment
  CHSC38372  Lasthenia fremontii Vernon Oswald 1983-4-6 280 Butte Upper Bidwell Park, Chico, in the Omicron Enclosure ca. 750 ft e of the junction of Wildwood Ave. and Upper Park Rd. 85 Comment
  JEPS119708  Lasthenia fremontii Lowell Ahart 2012-5-2 17963 Butte About 30 yards west of the Easter Cross Parking Lot, Upper Bidwell Park, about 1 mile east of Chico. Comment
  UC1562501  Lasthenia fremontii Barbara Ertter with Lowell Ahart 1986-4-13 5894 Butte ca. 2 airmiles nne Honcut (between Oroville and Marysville); Peter Ahart Ranch 30 Comment
  CDA8113  Lasthenia fremontii T. C. Fuller 1958-4-15 Butte Highway 99E, 10 miles northwest of Chico. 0 Comment
  CHSC8120  Lasthenia platycarpha M. Banning 1969-3-28 26 Butte 12 mi. N. Chico on Hwy 99. 76 Comment
  JEPS122007  Lathyrus angulatus Lowell Ahart 2014-5-13 19461 Butte Below the high water line of Lake Oroville, along the old paved road, about 50 yards west of the Enterprise Boat Ramp, about 11 miles (air) east of Oroville. Comment
  CHSC855  Lathyrus jepsonii var. californicus T. Morgue 1932-4-22 Butte Durham-Chico road. 57 Comment
  CHSC30799  Lathyrus nevadensis M. S. Taylor; J. Jokerst 1980-4-18 2509 Butte Ca. 1 mi s of Nimshew, ca. 1/4 mi e of Nimshew Rd. 609 Comment
  CHSC42561  Lathyrus sulphureus Lowell Ahart 1987-5-22 5659 Butte South of the lava cap, about 1/4 mile south of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  UCR88860  Lathyrus sulphureus Lowell Ahart 1987-5-11 5621 Butte S of Forbestown Ditch, c. 2.5 mi NE of Forbestown 869 Comment
  SEINET10973185  Lathyrus sulphureus Mary Susan Taylor 1980-4-19 Taylor 2536 Butte S side of Humbug, NE of Centerville. With J.D. Jokerst. 366 Comment
  CHSC2924  Layia fremontii W . Fitzwater 1958-3-15 Butte Shasta Hwy., Chico area. Comment
  SJSU966  Layia fremontii M. Reed 1948-5-1 Butte 10 mi W of Oroville Comment
  POM284970  Layia fremontii Lyman Benson 1935-3-27 6369 Butte 5 miles NW of Oroville, Sierra Nevada Mt Range, Sacramento river watershed. 152 Comment
  CHSC377  Layia platyglossa V. Holt 1938-3-28 Butte Near Chico. Comment
  CHSC66460  Leersia oryzoides Vernon H. Oswald; Lowell Ahart 1996-6-10 7760 Butte Sacramento River National Wildlife Refuge, Llano Seco Unit. U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Near the center of the W side of Tract 7.1, Sanctuary 1. 33 Comment
  SD505  Lemna trisulca E. B. Copeland 1930-7-18 404 Butte Jonesville, local in water in sunny swamp. 1550 Comment
  CHSC82421  Leontodon saxatilis subsp. longirostris Lowell Ahart 2002-5-7 9610 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  JEPS119756  Leontodon saxatilis subsp. longirostris Lowell Ahart 2012-5-14 18054 Butte North edge of the path to Table 12, south of Big Chico Creek, north of the paved road, Lower Bidwell Park, Chico. Comment
  UCD73331  Leontodon saxatilis subsp. longirostris Chuck Hughes 2008-3-18 22 Butte Oroville, west of 6th St. between Nelson Ave. school and baseball fields. Field has been approved for development. 71 Comment
  CHSC103735  Leontodon taraxacoides subsp. longirostris Lowell Ahart 2010-5-16 16700 Butte East of basalt cliffs, about 1/2 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 364 Comment
  UCLA64433  Lepechinia calycina A. A. Heller 1915-5-28 11906 Butte Near the upper limit of the digger pine in the Sierra foothills. Comment
  UCSC010731  Lepechinia calycina Brett Hall, Annee Hall 1991-1 BH 115 .91 Butte Between Chico and Forest Ranch Comment
  JEPS120954  Lepidium didymum Lowell Ahart 2013-4-20 18557 Butte Corral at the barn, about 1/4 mile N of Honcut Cemetery, about 3.25 air miles NE of Honcut. Comment
  CHSC34169  Lepidium latifolium L. Ahart 1981-9-10 3143 Butte Near the entrance to the Graylodge Waterfowl Mgmt HQ w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC38051  Lepidium nitidum R. E. Preston 1983-2-16 381 Butte In field on NW corner of The Skyway and Notre Dame Blvd, Chico. 68 Comment
  CHSC4516  Lepidium nitidum C. Glascock 1965-3-2 271 Butte At side of Chico Canyon Rd. ca. 1/2 mi. from its intersection with E 8th St., Chico. Comment
  UCSB64000  Lepidium nitidum Fillinger, Jennifer 1991-4-2 Butte North Table Mountain; 6 mi. N of Oroville; W of Table Mountain-Cherokee Rd.; 40 yds. W of N Table Mt. gate 243 Comment
  CHSC75261  Lepidium nitidum var. nitidum Jennifer Slater 1997-4-6 13 Butte At the Wurlitzer addition of the Vina Plains Preserve, approx. one mile west of Highway 99. 67 Comment
  CAS-BOT-BC12801  Lepidium perfoliatum Lowell Ahart 1984-6-8 4680 Butte 3 miles NE of the Ponderosa Dam. The road forks here and one goes to Feather Falls and the other to Lumpkin Ridge Road. 500 Comment
  CAS-BOT-BC12846  Lepidium pinnatifidum Lowell Ahart 1981-7-26 3013 Butte Gray Lodge, southwest of Gridley. 35 Comment
  CHSC35026  Lepidium strictum R. E. Preston 1982-3-27 210 Butte Center of dirt road; s border of State Shooting Area, ca. 2 mi s of Oroville Municipal Airport. 45 Comment
  CHSC90625  Lepidium strictum Sally A. Carter 1988-4-12 1 Butte South side of Little Butte Creek, about 8.8 mi east-southeast of Chico, 200 ft west of Honey Run Road. 160 Comment
  CAS-BOT-BC273947  Leptochloa fusca subsp. fascicularis Lowell Ahart 1986-11-9 5456 Butte About 1/10 mile south of the clay burrow for Oroville Dam, 1/4 mile east of Larkin Road, about 6 miles south-west of Oroville 36 Comment
  UCD63845  Leptochloa fusca subsp. fascicularis H. L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  UCD63945  Leptochloa fusca subsp. fascicularis A. A. Heller 1919-8-13 13354 Butte Between Nelson and Richvale. Comment
  CHSC10761  Leptosiphon acicularis Lowell Ahart 1962-4-9 Butte Ahart Ranch, Honcut. 45 Comment
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Jul 19 2018
  CHSC41470  Leptosiphon acicularis Lowell Ahart 1986-4-4 5243 Butte About 2 1/2 miles north and 2 1/2 miles east of Honcut, about 12 miles south of Oroville. 82 Comment
  CHSC101312  Leptosiphon bicolor Lowell Ahart 2009-4-22 15585 Butte Along the Guardians Trail, just south side of the small drainage, just north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  HSC23389  Leptosiphon bicolor J. D. Sagray 1970-4-20 10 Butte 4 mi. N of Chico on S side of upper Bidwell Park Rd., 100 yds. from end of rd. 175 Comment
  CHSC45751  Leptosiphon filipes L. P. Janeway 1988-5-9 2662 Butte Ridge between hwy 32 and the piece of old rd that connects to Crown Point Rd, 2 mi N of Ten Mile House. 594 Comment
  CHSC33248  Leptosiphon harknessii R. A. Schlising; R. Banchero 1980-7-14 3901 Butte N end of Snag Lake in N part of county. Meadows. 1731 Comment
  RSA181940  Lessingia nana Willard Spence 1962-7-24 729 Butte Route 99E, corner of Broyles Road, north of Chico Comment
  CHSC102843  Lessingia nemaclada Lowell Ahart 2009-6-30 15965 Butte About 150 yards north of a small drainage, along the Guardian Rock Trail, about 150 yards southwest of Pine Trail, about 1/2 mile (air) southwest of the intersection of Ten Mile House Road and Highway 32, Upper Bidwell Park, about 10 miles northeast of Chico. 398 Comment
  UC179649  Lessingia virgata A. A. Heller 1914-9-4 11762 Butte hills 8 mi n Oroville Comment
  POM253222  Lewisia rediviva A. A. Heller 1938-4-14 15029 Butte Treeless summit of Table Mtn. Comment
  SEINET10454481  Ligusticum Mary Susan Taylor 1976-4-27 Taylor 1090 Butte Abundant on N side of Villas Rd, ca. 0.5 mi E of junction of Villas Rd and Cohas set Hwy, Cohasset. Yellow Pine Forest with Calochortus monophyllus. 762 Comment
  CHSC42590  Ligusticum grayi Vernon Oswald 1985-7-2 1879 Butte Scotts John Rd. 0.6 mi n of the road connecting Humboldt and Humbug Rds. 1780 Comment
  RSA0116108  Ligusticum grayi Lowell A. Ahart 2014-7-13 19646 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CHSC110991  Ligustrum sinense Lowell Ahart 2012-6-21 18208 Butte On the south bank of Big Chico Creek, about 200 yards east of the dam at Sycamore Pool, Lower Bidwell Park, Chico. 62 Comment
  RSA31975  Lilium humboldtii subsp. humboldtii A. A. Heller 1923-6-10 s.n. Butte River northwest of Chico Comment
  CHSC46238  Lilium washingtonianum Pauleen Broyles 1987-8-5 1074 Butte Ca 6 km n of Inskip, ca. 0.3 km n of jct. Of Skyway and Bull Hill Rd. 1530 Comment
  CAS-BOT-BC133049  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-6 10 Butte About 1/2 mile west of Chaparral 1554 Comment
  CHSC24949  Limnanthes alba V. L. Keeran 1976-4-21 9 Butte Ca. 115 m e of Cohasset Road and 1.15 km sw of Cohasset. 400 Comment
  CHSC37688  Limnanthes alba M. S. Taylor 1981-5-7 3643 Butte Along spur rd, ca. 1/5 mi se of its jct with 20N24.6 (Fields Ridge Rd), ca. 3 air mi s of Feather Falls. 975 Comment
  UC1303182  Limnanthes alba A. A. Heller 1926-4-12 13917 Butte 8 mi n Chico Comment
  UCD116449  Limnanthes alba Jeff Dole 1986-4-27 s.n. Butte 2.1 miles east of Bean Creek Road, along Highway 44. Comment
  CHSC1006  Limnanthes alba subsp. alba A. Goekler 1929-4-23 Butte Hooker Oak road. 60 Comment
  SEINET12183092  Limnanthes douglasii G. C. Halcomb 1978-1 3 Butte ca 1 mi E of Chico at intersection of Bruce Rd. and Skyway Rd. 100 yds WNW of Bruce Rd 70 Comment
  RSA435676  Limnanthes douglasii subsp. rosea M. Vincent 1962-4-17 203 Butte Cherokee Road near Table Mountain. Comment
  CHSC28973  Limnanthes floccosa subsp. californica Don Kroessing 1979-4-15 1 Butte In vernal pool in pasture on N side of Humboldt Rd, 0.2 mi E of its intersection with El Monte Ave, E of town of Chico. 76 Comment
  CHSC55506  Limnanthes floccosa subsp. californica L. P. Janeway; Pat Kelly 1991-3-31 3867 Butte Between Hwy 32 and Dead Horse Slough, and from 600 to 1200 ft west of Bruce Road. 74 Comment
  UC1748332  Limnanthes floccosa subsp. californica James D. Jokerst 1991-4-18 3241 Butte N of Hwy. 32 across from church 76 Comment
  CHSC32591  Limnanthes floccosa subsp. floccosa J. D. Jokerst 1981-3-21 1257 Butte Initial slopes delineating the beginning of the foothills, ca. 0.5 mi N of Horseshoe Lake. Comment
  UCD116434  Limnanthes floccosa subsp. floccosa Jeff Dole 1986-4-27 s.n. Butte 1 mile north of Cayton Creek. Comment
  UCD169442  Limnophila X ludoviciana Lowell Ahart 2005-8-28 12336 Butte On the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Road. 28 Comment
  CHSC32586  Limosella acaulis L. Ahart 1980-5-11 2242 Butte On the w side of Pentz-Magalia Hwy, ca. 1/2 mi sw of Kunkle Reservoir, ca. 3 mi s of Paradise. 500 Comment
  UCD169097  Limosella aquatica Ramona Robison 2013-4-16 14 Butte Clay Pit State Vehicular Recreation Area, located in pools within Clay Pit SVRA. 41 Comment
  UC1181372  Linanthus ciliatus Lewis S. Rose 1945-5-12 45029 Butte Richardson Springs 304 Comment
  RSA0096837  Linanthus filipes H. F. Copeland 1929-5-4 1124 Butte Canyon of Chico Creek. Comment
  SEINET12332636  Linanthus filipes S. S. Khan 1988-1 43 Butte North Table Mountains, ca 100 yds W of Table Mountain-Cherokee Rd, ca 6 mi N of Oroville 244 Comment
  JEPS117409  Linanthus parviflorus Lowell Ahart 2010-5-7 16628 Butte On both sides of Guardian Trail, about 1/2 miles west of Highway 32, Upper Bidwell Park, about 4 1/2 miles (air) northeast of Chico 238 Comment
  CHSC48993  Linaria dalmatica subsp. dalmatica Vernon Oswald 1986-5-12 2032 Butte Skyway 1.3 mi wsw of Neal Rd. in Paradise. 405 Comment
  CDA20241  Lindernia dubia G. D. Barbe 1984-8-25 4189 Butte Sacramento Valley; Biggs Rice Experiment Station, N of Biggs. 0 Comment
  HSC93349  Lindernia dubia L. Ahart 1995-7-15 7595 Butte Small wash, Peter Ahart Ranch, 1.5 mi. N and 0.75 mi. E of Honcut, 12 mi. S of Oroville 37 Comment
  CDA14464  Lindernia dubia var. anagallidea G. D. Barbe, June McCaskill 1990-9-5 4393 Butte Rice Experiment Station, West Hamilton Road at Riceton Highway, north of Biggs. 0 Comment
  CHSC42966  Lindernia dubia var. anagallidea Lowell Ahart 1987-7-3 5780 Butte Along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  UC1101442  Lindernia dubia var. dubia Malcolm A. Nobs and S. Galen Smith 1949-7-29 1082 Butte ca 5 mi w Richland Comment
  CHSC11793  Linum lewisii var. lewisii E. B. Copeland 1929-7-17 379 Butte Above Jonesville. 2000 Comment
  CHSC44285  Linum lewisii var. lewisii Vernon Oswald 1988-6-14 3383 Butte Rim Rd. or Ponderosa Way (23N06) 0.8 mi se of Concow Rd., ne of Lake Concow. Scattered on a brushy serpentine outcrop. 975 Comment
  SEINET12186145  Linum micranthum Unknown 1985-1 5085 Butte about 2.5 mi NE of Forbestown, roadside to the Forbestown Reservoir 869 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
  CHSC38910  Lipocarpha aristulata Vernon Oswald 1983-7-8 841 Butte Upper Bidwell Park, Chico, in the bed of Lindo Channel n of the flood-control gates. 79 Comment
  CHSC97417  Lipocarpha micrantha Robert Fischer 2006-6-18 1021 Butte Chico. Within upper Bidwell Park in the City of Chico. 60 Comment
  JEPS120828  Lipocarpha micrantha Lowell Ahart 2013-7-9 18831 Butte South side of North Honcut Creek, west of the steel power line, about 2 air miles northeast of Honcut, about 13 air miles southeast of Oroville. Comment
  SACT002882  Lithocarpus densiflorus Herbert Copeland 1937-7-30 Butte In the foothills of Butte County. Comment
  UCSC000178  Lithocarpus densiflorus F. W. Foxworthy 1936-8-19 s.n. Butte forty miles east of Chico 1097 Comment
  SEINET10482996  Lithophragma Mary Susan Taylor 1981-4-5 Taylor 3496 Butte T21N R4E ne sec 14; Berry Creek quad. At end of Dark Canyon Rd at turnout near restroom, ca. 3.5 mi s of Big Bend Rds, ca. 5 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  CHSC1649  Lithophragma affine E. Canfield 1904-4-9 Butte Wood adjoining Hooker Oak field. 76 Comment
  SEINET12219412  Lithophragma affine Unknown 4 s.n. Butte no further locality Comment
  POM219578  Lithophragma bolanderi H. F. Copeland 1923-3-16 47 Butte [Unspecified] Comment
  CAS-BOT-BC432272  Lithophragma campanulatum Vernon Oswald; Lowell Ahart 1990-4-9 4156 Butte Feather Falls Trail between Frey Creek and Wagners Valley 475 Comment
  CAS-BOT-BC435492  Lithophragma glabrum Lowell Ahart 1987-5-12 5646 Butte S of Lumpkin Ridge Road, 1 1/2 miles E of Camp 18, about 8 miles NE of Feather Falls 1280 Comment
  CHSC28033  Lithophragma parviflorum J. D. Jokerst 1979-3-18 171 Butte 200 yds off Hwy 32, 3 mi e of Chico. Comment
  CHSC1654  Lithophragma parviflorum var. trifoliatum V. Holt 1935-3-27 Butte Salmon Hole on Chico Creek. 152 Comment
  CHSC30727  Logfia filaginoides M. S. Taylor 1980-5-27 2661 Butte On Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC102424  Logfia gallica Lowell Ahart 2009-5-30 15809 Butte On dry rocky soil, on the west side of Guardian's Trail, about 100 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 3/8 mile (air) west of the intersection of Highway 32 and Ten Mile House Road. 440 Comment
  CHSC108787  Logfia gallica L. P. Janeway 2011-4-26 10239 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CHSC31593  Logfia gallica L. Ahart 1974-4-24 435 Butte Peter Ahart Ranch, Honcut. 45 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
  CHSC90644  Lolium multiflorum Lowell Ahart 2005-4-2 11698 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 25 Comment
  SEINET10960424  Lolium multiflorum Laurel L. Huey 1980-4-25 Huey 19 Butte T22N, R1E, Sec 10, (Richardson Springs SW Quad 15'). Immediately S of Chico Muni Airport, W of Cohasset Highway. 60 Comment
  POM132576  Lomatium dasycarpum subsp. tomentosum A. A. Heller, H. E. Brown 1902-5-14 5552 Butte Berry Canyon (near Clear Creek) Comment
  CHSC1966  Lomatium macrocarpum A. Goekler 1929-4-21 Butte Bidwell Park. 60 Comment
  CHSC38738  Lomatium macrocarpum Vernon Oswald 1983-3-7 132 Butte Upper Bidwell Park, Chico, beside the South Rim Trail at the barbed-wire fence (ca. 0.2 mi w of the power lines). 121 Comment
  CHSC42477  Lomatium macrocarpum Lowell Ahart 1987-5-11 5616 Butte South of the Forbestown Ditch, about 2 1/2 miles north-east of Forbestown. 868 Comment
  CHSC42613  Lomatium macrocarpum Vernon Oswald 1985-4-16 1720 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. Comment
  CHSC93489  Lomatium marginatum var. marginatum Lowell Ahart 2006-5-8 12606 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  JEPS110244  Lomatium marginatum var. marginatum Lowell Ahart 2006-5-8 12606 Butte North of Phantom Falls, about 3/4 mile northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 384 Comment
  CHSC113655  Lonicera hispidula L. P. Janeway 2014-5-29 11276 Butte Northern High Sierra Nevdda. Plumas National Forest; at junction of Roads 18N18 and 19N40 (but 19N40 doesn't exist here anymore). 1.0 air-km north of top of Sunset Hill; upper slopes high above South Fork Feather River arm of Lake Oroville. 774 Comment
  CHSC44384  Lonicera hispidula Lowell Ahart 1988-6-23 6067 Butte Just east of the intersection of Black Bart Road and Forbestown Road, about 1 mile west of Robinson Mill Road. 670 Comment
  SEINET10972049  Lonicera hispidula var. vacillans Mary Susan Taylor 1979-10-5 Taylor 2238 Butte T23N R4E sec 18. SE side of Paradise Lake (from picnic area to first creek coming into lake, along road), ca. 0.5 mi N of Coutolenc Rd, ca. 5 mi N of Magalia. 732 Comment
  CHSC25257  Lonicera interrupta M. S. Taylor 1977-6-26 1373 Butte On S side of Ponderosa Way, ca. 1 mi E of Cohasset. 609 Comment
  CHSC21382  Lonicera japonica M. S. Taylor 1975-6-22 784 Butte On SW side of furthest E bridge on California State University, Chico. Comment
  CDA13829  Lotus corniculatus G. F. Hrusa, T. D. Wilfred 1996-9-5 13557 Butte Butte Basin; Bank of Butte Creek immed. below Western Canal District Dam. Comment
  UC864838  Lotus grandiflorus var. grandiflorus A. A. Heller 1938-5-28 15125 Butte 25 mi from Oroville (on the Feather River Highway) Comment
  SEINET10841146  Lotus grandiflorus var. macranthus Mary Susan Taylor 1981-5-5 Taylor 3617 Butte T20N R6E ne/ne sec 11 Forbestown quad. Ca. 50 ft N of spur rd from 21N35Y, ca. 0.5 mi E of Feather Falls trailhead, ca. 1 air mi E of Feather Falls community. Yellow Pine Forest; 2700 ft. 823 Comment
  SEINET3694615 Image available Lotus macranthus A. A. Heller 1938-5-28 15125 Butte On Feather River Hwy west of Pulga Comment
  SEINET10451995  Lotus nevadensis Lowell Ahart 1983-5-28 Ahart 4016 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  SEINET3729652  Lotus scoparius A. A. Heller 1923-6-9 13741 Butte Oroville Comment
  SEINET10874146  Lotus strigosus Lowell Ahart 1983-5-28 Ahart 4021 Butte Along trail to Feather Falls, ca. 5 mi n of the town of Feather Falls. Yellow Pine Forest; 600 m. 600 Comment
  POM253436  Lotus unifoliolatus A. H. Heller 1938-7-20 15289 Butte 7 miles east of Chaparral. 1524 Comment
  JEPS107759  Lotus wrangelianus Lowell Ahart 2005-5-11 11798 Butte On the bottom of a small vernal pool, south part of North Table Mountain, about 300 yards northwest of the poor dirt road off of Cherokee Road, about 200 yards south of the rim into Beatson Hollow, about 7 miles (air) north of Oroville 354 Comment
  UCD66039  Ludwigia hexapetala B. J. Grewell; Robert McKee 2006-8-1 06- 31 -LU Butte Oroville Wildlfe Area, Dept of Fish and Game access from Pacific Heights Rd, w. of Hwy 70, e. of Feather River. 28 Comment
  JEPS119895  Ludwigia palustris Lowell Ahart 2012-6-5 18168 Butte North of Beatson Hollow, about 1 3/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 6 miles (air) north of Oroville. Comment
  CHSC25320  Ludwigia peploides subsp. peploides Hayes; Warner, Schlising 1977-8-23 46 Butte Found in canal at Gray Lodge State Wildlife Refuge. 50 Comment
  UCD66035  Ludwigia peploides subsp. peploides B. J. Grewell; R. McKee 2006-8-17 06- 43 -LU Butte Gray Lodge Wildlife Area north of Sutter Buttes. 22 Comment
  CDA5220  Ludwigia uruguayensis L. Ahart 2000-7-18 8601 Butte About 1/2 mile west of Pacific Heights Road, Oroville Wildlife Area, about 4 miles (air) southwest of Oroville. Comment
  CHSC97355  Lupinus albicaulis Paul Maslin 2005-4-27 52 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10610536E 4412518N. 292 Comment
  RSA0036364  Lupinus albicaulis Daisie Huang 2006-8-3 06080306 Butte Butte. 1327 Comment
  SBBG29098  Lupinus albicaulis E. B. Copeland 1929-7-17 Butte above Jonesville 609 Comment
  UCD105852  Lupinus albicaulis E. B. Copeland 1929-7-17 378 Butte above Jonesville. 2000 Comment
  UC725344  Lupinus albicaulis A. A. Heller 1941-5-22 16138 Butte on State Highway #24 about a half mi w Jarboe Pass; w of Jarboe Pass Comment
  CAS-BOT-BC201350  Lupinus albifrons var. albifrons L. S. Rose 1931-4-11 s.n. Butte In outskirts of Oroville Comment
  CAS-BOT-BC196244  Lupinus albifrons var. eminens Lowell Ahart 1967-4-12 s.n. Butte Bidwell Bar 609 Comment
  CAS-BOT-BC196255  Lupinus albifrons var. eminens A. A. Heller 1938-4-23 15050 Butte Along Highway #24, near the junction with the Yankee Hill road Comment
  UC1129534  Lupinus arbustus P. L. Johannsen 1936-7-21 953 Butte 1/2 mi e Chaparral House; Lassen National Forest, Paynes Creek Quadrangle Comment
  SEINET5767544 Image available Lupinus arbustus subsp. silvicola E. B. Copeland 1930-1 s.n. Butte Jonesville 1600 Comment
  SD2382  Lupinus aridus E. B. Copeland 1929-7-17 377 Butte Above Jonesville, on very porous soil in full sun 2000 Comment
  CDA15390  Lupinus bicolor G. F. Hrusa 1997-4-3 13691 Butte Sierra Nevada; Near Paradise Lake dam along Old Railroad Grade Rd., approx. 3 m. N of Magalia. Comment
  UCD107195  Lupinus bicolor A. A. Heller 1914-3-26 11227 Butte Canon hf Big Chico creek 6 miles east of Chico. Comment
  UCR237327  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2012-4-14 18737 Butte Northern Sacramento Valley, Middle Honcut Road, 1.5 miles east of CA-70, ESE of Gridley 18 Comment
  UCD107191  Lupinus bicolor A. A. Heller 1914-2-2 11166 Butte Canon hf Big Chico creek 6 miles east of Chico. Comment
  SEINET10484912  Lupinus bicolor subsp. microphyllus Rumore 1982-4-17 RUMORE 7 Butte Large population, ca 0.5 mi s of hwy 32 at intersection of forest ave. And 20 th street, se chico. Grassy foothill. Soil a rocky sand. 61 Comment
  CHSC48528  Lupinus bicolor var. tridentatus Vernon Oswald 1984-3-7 1090 Butte Upper Bidwell Park, Chico, beside Yahi Trail at Salmon Hole. 158 Comment
  HSC23347  Lupinus densiflorus var. aureus Carolyn Fante 1971-4-13 4 Butte N side Pentz-Magalia Hwy. 165 Comment
  CHSC37674  Lupinus latifolius M. S. Taylor 1982-8-16 5002 Butte At loop in road above Discovery Creek, ca. 1 mi n of Bald Mt, ca. 4 mi ne of Stirling City. 1584 Comment
  CHSC36836  Lupinus latifolius var. columbianus M. S. Taylor 1982-6-24 4738 Butte E side of Lea Mt. ridge, ca. 1 mi se of Flea Mt, 1.7 mi se of Ponderosa Way, ca. 8.9 mi n of Jarbo Gap. 1097 Comment
  CHSC78077  Lupinus microcarpus var. densiflorus Caleb E. Casey 1999-5-13 Butte Bear Hole, Upper Bidwell Park. Found on South side of Chico creek. 121 Comment
  CHSC33129  Lupinus microcarpus var. microcarpus J. D. Jokerst 1981-4-29 1301 Butte Adjacent to entrance road to Butte College Campus from Pentz Road. 76 Comment
  CHSC76941  Lupinus nanus Ida Ryan 1893-4-1 Butte Rancho Chico. Comment
  CHSC38509  Lupinus nanus var. latifolius Vernon H. Oswald 1983-3-9 141 Butte Upper Bidwell Park, Chico, on the north slope near the head of the intermittent stream which crosses Upper Park Rd. 0.5 mi e of the power lines. 213 Comment
  CHSC101697  Lupinus nanus var. vallicola Lowell Ahart 2009-4-26 15618 Butte In a small open meadow, about 150 yards southwest of Ten Mile House Road, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 286 Comment
  JEPS108851  Lupinus nanus var. vallicola Lowell Ahart 2006-5-8 12594 Butte About 300 yards south of the three Gray Pines on the rim of Coal Canyon, about 2 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 337 Comment
  JEPS120590  Lupinus nanus var. vallicola Lowell Ahart 2013-11-18 19283 Butte Below the high-water line of Lake Oroville, about 150 yards northeast of the boat ramp at the end of Stringtown Road, about 50 yards north of the road, about 2.5 air miles northeast of Hurleton. Comment
  POM253157  Lupinus pachylobus A. A. Heller 1938-4-7 15038 Butte Salmon Hole, east of Chico. Comment
  CAS-BOT-BC8229  Lupinus pennellianus Amos Arthur Heller 1940-6-5 15705 Butte Along the Feather River Higway between Arch Rock Tunnel and Pulga Comment
  SEINET10970021  Lupinus polycarpus Karen D. Johnson 1978-4-16 Johnson 2 A Butte East side of Cohasset Rd. at Lassen Ave., 3 mi. N of Chico. 61 Comment
  CHSC63813  Lupinus polyphyllus var. burkei S. C. Morey 1983-7-23 590 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 1414 Comment
  POM219418  Lupinus sellulus var. artulus E. B. Copeland 1931-7-3 651 Butte Jonesville, Colby Canyon. 1600 Comment
  CHSC2373  Lupinus stiversii R. Carter 1965-6-1 219 Butte Found ca. 30 mi. E of Oroville on Bald Rock Rd., .2 mi. E of intersection with Zinc Rd., on S side of road. 883 Comment
  CHSC98999  Luzula macrantha Lowell Ahart 2008-5-30 14793 Butte Dry bare granite soil, northwest part of the top of Big Bald Rock, about 14 miles (air) northeast of Oroville. 976 Comment
  RSA718305  Luzula parviflora L. P. Janeway 2006-8-6 8830 Butte Near road along west side of lower Pinkard Creek, 1.2 road miles north of Lost Creek Reservoir dam. 1021 Comment
  JEPS119866  Luzula subsessilis Lowell Ahart 2012-5-12 18028 Butte About 400 yards southwest of Ten Mile House Road, about 1/2 mile (air) west of Highway 32, south part of Upper Bidwell Park, about 9 miles (air) northeast of Chico. Comment
  JEPS120131  Luzula subsessilis Lowell Ahart 2012-5-12 18031 Butte On the sides of South Rim Trail, about 1/2 mile southwest of the old homestead, about 5/8 mile west of Highway 32, south part of Upper Bidwell Park, about 8 1/2 miles (air) northeast of Chico. Comment
  CDA18383  Lychnis coronaria G. D. Barbe 1978-7-14 2403 Butte Sierra Nevada; W of Main St. in Stirling City. Comment
  CHSC48485  Lycopus americanus Vernon Oswald 1983-10-10 1064 Butte Growing on the e bank of Pine Creek just s of the Calif. Hwy. 32 bridge. Comment
  CHSC752  Lycopus americanus V. Holt; M. Underhill 1952-7-9 Butte Dodge Lands. 56 Comment
  JEPS110477  Lycopus americanus Lowell Ahart 2006-9-13 13320 Butte South edge of the North Fork of the Feather River, about 50 yards west of the Cresta Power House, north side of Highway 70, about 2 3/4 miles northeast of Pulga, about 23 miles (air) northeast of Oroville 437 Comment
  JEPS119908  Lycopus americanus Lowell Ahart 2012-10-20 18511 Butte On the north side of Big Chico Creek, south of Table 34, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  JEPS88581  Lycopus americanus Vernon H. Oswald and Lowell Ahart 1996-7-22 8079 Butte edge of farm rd. crossing branch of Angel Slough w. Refuge H.Q.'s (s.e. corner of Tract 1-Sanctuary 1, U.S. Fish & Wildlife Service parcel betw 7 Mile Lane & Sacramento R.); Sacramento R. Nat'l Wildlife Refuge, Llano Seco Unit 32 Comment
  CHSC102421  Lythrum hyssopifolia Lowell Ahart 2009-7-9 16011 Butte On damp soil, on the east side of the dirt road which is Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of highway 32, about 10 miles northeast of Chico. 236 Comment
  CHSC80018  Lythrum hyssopifolia L. P. Janeway; B. Castro 1999-6-4 6453 Butte Sacramento Valley. East side of the Sacramento River 1.6 km southeast of the Ord Ferry Road Bridge. 30 Comment
  JEPS120718  Lythrum portula Lowell Ahart 2013-10-16 19112 Butte Thermalito Afterbay, about 20 feet north of the base of the large rock levee, about 100 yards north of Larkin Road, about 4 air miles north of East Biggs. Comment
  CDA18068  Lythrum salicaria B. Villegas 1999-7-1 s.n. Butte W side of Hwy 70 at Oroville. 0 Comment
  HSC95490  Lythrum salicaria L. Ahart 1997-6-29 7742 Butte S side of Wyman Ravine, on W side of Lone Tree Rd., ca. 6 mi. S of Oroville. 37 Comment
  CHSC42367  Lythrum tribracteatum Lowell Ahart 1987-5-10 5608 Butte In idle rice field, 1/8 mile south of Central House Road, east of the Western Pacific Railroad, about 1 1/2 miles north and 1 mile west of Honcut, about 12 miles south of Oroville. 30 Comment
  CHSC31886  Maclura pomifera L. Ahart 1976-5-21 1114 Butte Along edge of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CHSC44272  Madia citrigracilis Vernon Oswald; Bruce Baldwin 1988-6-16 3388 Butte Camp Creek Rd. ca. 0.5 mi ene of Pulga. 512 Comment
  CAS-BOT-BC342724  Madia elegans Chester Dudley 1940-6-1 s.n. Butte Near Magalia Comment
  UCD134217  Madia elegans G. K. Helmkamp; E. A. Helmkamp 2007-10-7 13078 Butte Northern Sacramento Valley: Biggs East Hwy, 1.6 miles east of CA-99 at Biggs. 35 Comment
  UCD80090  Madia elegans CNPS SN Foothill Team 2005-5-5 SNFN 0158 e Butte City of Chico, Upper Bidwell Park, off of Upper Bidwell Park Road, approximately 3/4 mile from the north end of the road. 233 Comment
  CHSC46552  Madia elegans subsp. elegans Vernon H. Oswald 1989-7-18 3861 Butte Hwy 32 north of Forest Ranch, slightly north of Headwaters Rd. Roadside. 871 Comment
  HSC96907  Madia exigua L. Ahart 2006-6-9 12650 Butte E side of Bardees Bar Rd., S of the small stream, about 1/4 mi. SW of the poor bridge scross the N Fork of the Feather River at Bardees Bar, about 2 3/4 mi. (air) SW of Pulga 404 Comment
  CAS-BOT-BC344310  Madia exigua A. A. Heller 1928-5-27 14561 Butte Along the Neal road, Paradise Comment
  SEINET10475532  Madia exigua Lowell Ahart, Peter Ahart 1983-6-12 Ahart 4050 Butte T20N R5E n half sec 36. Ca. 1 mi s of Crystal Hill, n of Oregon Gulch, near Lake Oroville, ca. 7 mi sw of Feather Falls. Yellow Pine Forest. Comment
  RSA302630  Madia gracilis subsp. gracilis J. R. Shevock 1972-5-19 1772 Butte 10 miles north of Lake Oroville, Highway 70 457 Comment
  CHSC32363  Madia subspicata J. D. Jokerst; M. S. Taylor, R. A. Schlising, D. Ikeda 1980-5-18 722 Butte Top of Cohasset Ridge along the S edge above Mud Cr. Comment
  JEPS98930  Madia subspicata Bruce G. Baldwin, Gerald D. Carr, Lowell Ahart 1988-6-9 713 Butte 1 mi N, 3 mi E of Honcut (Peter Ahart Ranch, above North Honcut Creek) Comment
  RSA715563  Madia subspicata L. Ahart 2005-5-7 11788 Butte On the east side of North Honcut Creek, Peter Ahart Ranch, about 1.25 miles north and 2.75 miles east of Honcut, about 12 miles (air) southeast of Oroville 48 Comment
  CAS-BOT-BC345233  Madia subspicata Lowell Ahart 1978-6-2 s.n. Butte Sutter Buttes Area. Peter Ahart Ranch, Honcut 50 Comment
  CHSC27984  Maianthemum racemosum M. S. Taylor 1978-7-18 1700 Butte On top of Humboldt Peak, at Humboldt Summit. 2158 Comment
  JEPS119992  Malva nicaeensis Lowell Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17909 Butte Near the intersection of Valllombrosa Avenue and Manzanita Avenue, Lower Bidwell Park, Chico. Comment
  CDA38815  Malva parviflora L. Ahart 2012-4-6 17815 Butte On the north side of Big Chico Creek, Lost Park in Bidwell park, city of Chico. Comment
  POM68435  Marah fabacea C. C. Bruce 1897-05 s.n. Butte Big Chico. Comment
  SEINET10448088  Marah fabacea Mary Susan Taylor 1973-1 Taylor 51 Butte Upper Bidwell Park, Chico. Associates: Stipa pulchra, Lasthenia chrysostoma, Layia fremontii. 61 Comment
  CHSC3467  Marah fabacea var. agrestis Roger Jaegel 1966-3-2 17 Butte 4 miles northeast of Chico. Along the bank of Big Chico Crk. Upper Bidwell Park. Comment
  CHSC52337  Marah fabacea var. agrestis Pauleen Broyles 1987-4-24 1000 Butte The Nature Conservancy Vina Plains Preserve. Comment
  CHSC42547  Marah watsonii Lowell Ahart 1987-5-12 5648 Butte South of Lumpkin Ridge Road, 1 1/2 miles north-east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC87429  Marah watsonii R. D. Fischer 2004-3-20 90 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected near Hwy 32 and beginning of Pine Trail. 454 Comment
  CHSC101809  Marrubium vulgare Lowell Ahart 2009-6-12 15845 Butte 10 yards north of Bear's Lair Picnic Area and Coastal Redwood Grove sign, about 80 yards east of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CAS-BOT-BC67810  Marsilea vestita Lowell Ahart 1987-8-8 5856 Butte About 12 miles south-east of Oroville - along North Honcut Creek, about 2 miles north and 3 miles east of Honcut. 67 Comment
  SD8258  Meconella californica Mrs. R. M. Austin 1880-1 Butte Comment
  SEINET10476232  Meconella californica Mary Susan Taylor 1980-4-6 Taylor 2459 Butte Swedes Flat Road, ca. 1 mi E of its jct with Bangor-Oroville Hwy, ca. 10 mi SE of Oroville. With L. Ahart & J.D. Jokerst. 335 Comment
  CHSC108775  Medicago praecox L. P. Janeway 2011-4-26 10240 Butte Sacramento Valley. Oroville; in gravel parking area at east side of Feather River Ranger District office (875 Mitchell Ave.). 59 Comment
  CDA13300  Melica aristata G. F. Hrusa, T. D. Wilfred 1996-7-9 13148 Butte Plumas National Forest; Scattered individuals in old roadbed. Coniferous understory above Jordan Creek S of Hwy 162 near Roger's Cow Camp on 23N15. Perennial. Comment
  CHSC46883  Melica aristata Vernon Oswald 1989-6-15 3807 Butte Logging road 2.2 mi s of Lomo (2.3 mi s of ford over Cedar Creek). 1219 Comment
  CHSC94483  Melica aristata Lowell Ahart 2006-7-16 12966 Butte East of the open mudflow area, about 50 yards south of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows. 1435 Comment
  UCD86345  Melica bulbosa Copeland 1931-6-22 606 Butte Jonesville. 609 Comment
  CAS-BOT-BC269381  Melica californica A. A. Heller 1915-4-20 11860 Butte 7 miles below Centerville in the Sierra foothills 76 Comment
  CHSC82664  Melica californica Tara Morgan 2002-4-23 37 Butte Found along the south rim trail located on the east side of Big Chico Creek. Located down from the green gate trail of Highway 32. 414 Comment
  UCD87264  Melica fugax E. B. Copeland 1944-7-6 s.n. Butte Butte Meadows. Comment
  CHSC50390  Melica geyeri Vernon Oswald 1990-6-1 4272 Butte Butte Creek Trail, ca. 1.75 miles north-northwest of Lake De Sabla. 579 Comment
  CDA32494  Melica harfordii l. Ahart 2004-6-22 11112 Butte On the east margin of a gravel road, road leads to Butte Creek, south of Doe Mill Road, about 1/8 mile southwest of the bridge across Butte Creek, about 2 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. Comment
  CHSC39278  Melica harfordii Lowell Ahart 1983-7-29 4231 Butte Along the dirt road, about 1/4 mile west of Milsap Bar, about 25 miles north-east of Oroville. 500 Comment
  CHSC41166  Melica harfordii L. P. Janeway; Gary Benson 1985-7-1 Butte Plumas N.F. ECOS plot 11-123. Slope on west side of Middle Fork Feather River near Milsap Bar. 633 Comment
  JEPS103566  Melica harfordii Lowell Ahart 2002-6-21 9739 Butte On the sides of a poor dirt road, Watson Ridge, ca 2 miles (air) NE of Bald Rock Dome, ca 5 miles (air) N of Feather Falls (the town). 1086 Comment
  SEINET10508160  Melica harfordii Lowell Ahart, Peter Ahart 1984-6-10 Ahart 4713 Butte About 2 mi SW of Forbestown Diversion Dam, NE of Forbestown; Yellow Pine Forest; 700 m. 700 Comment
  RSA4653  Melica subulata E. B. Copeland 1929-7-16 338 Butte Jonesville. 1550 Comment
  CAS-BOT-BC262497  Melica torreyana Lowell Ahart 1989-5-10 6221 Butte Near Lake Oroville, about 1/10 mile north-west of the West Branch Bridge across Lake Oroville 289 Comment
  UC204542  Melilotus albus A. A. Heller 1914-7-11 11563 Butte along river w Chico; Sacramento River Comment
  UCD107993  Melilotus albus L. Ahart 1982-7-10 3670 Butte 1/4 mi se of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Comment
  CHSC54438  Melilotus officinalis Vernon H. Oswald; Lowell Ahart 1991-7-15 4734 Butte Forest Rd 23N60 (Jordan Creek-Marble Creek Rd), 2.1 miles east of its junction with Oroville-Quincy Hwy, ca. 5.75 miles (air) northeast of Brush Creek. 1082 Comment
  CHSC102627  Melissa officinalis Lowell Ahart 2009-7-9 16014 Butte On the east edge of big Chico Creek, about 15 yards west of Ten Mile House Road, Upper Bidwell Park about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 181 Comment
  CHSC44398  Mentha canadensis Lowell Ahart 1988-6-21 6045 Butte Along the edge of te North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 271 Comment
  CHSC94031  Mentha pulegium R. D. Fischer 2005-7-18 736 Butte Sierra Nevada foothills, off Hwy. 32, on 10 Mile House Road in Bidwell Park about 4 miles east of Chico. Plants growing in moist meadow at edge of Big Chico Creek riparian near upper end of park property. 213 Comment
  JEPS102335  Mentha pulegium Lowell Ahart 2001-6-1 8746 Butte 5 air miles SW of Oroville (S side of access road to boat ramp at margin of the Thermalito Afterbay, W of Larkin Rd, 1 1/4 mi S of Oroville Airport) 42 Comment
  CHSC760  Mentha spicata V. Holt; M. Underhill 1952-7-21 Butte 152 Comment
  UC179654  Mertensia ciliata H. M. Hall 1914-7-25 9784 Butte Jonesville Sierra Nevada Montains 1554 Comment
  CHSC42857  Micranthes nidifica Lowell Ahart 1987-5-22 5664 Butte In a small wash, about 1/4 mile southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles northeast of Feather Falls. 1280 Comment
  CHSC48908  Micranthes odontoloma Vernon Oswald 1987-7-29 3165 Butte Between the dead-end spur road paralleling Coon Hollow Road on the south and the southwestern-most lake in a cluster of three located in the se/S6. 1752 Comment
  CAS-BOT-BC429202  Micranthes oregana A. A. Heller 1914-6-22 11493 Butte Chico Meadows 1219 Comment
  CHSC46960  Micropus californicus var. californicus Lowell Ahart 1974-4-7 359 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/4 miles east of Honcut, about 12 miles south of Oroville. 36 Comment
  CHSC101080  Microseris acuminata Lowell Ahart; John Dittes 2009-3-20 15516 Butte Open area west of the Guardian Rock Trail, about 175 yards southwest of the Ten Mile House Road Trail, about 300 yards west of Highway 32, west of the intersection of Highway 32 and Ten Mile House Road, Upper Bidwell Park, about 10 miles northeast of Chico. 407 Comment
  CHSC48186  Microseris douglasii subsp. douglasii Vernon Oswald 1988-5-2 3294 Butte Harter's Cherokee Ranch located on the w side of Hwy 99 between Hwy 149 and Dry Creek. Along the west fence. 54 Comment
  UC179687  Microseris douglasii subsp. douglasii A. A. Heller 1914-4-14 11291 Butte hills 8 mi n Oroville Comment
  CHSC51046  Microseris sylvatica J. D. Jokerst 1985-4-16 1971 Butte Cherokee area east of Table Mt, south of Campbell Flat in my backyard. Comment
  SEINET10496808  Microsteris gracilis Mary Susan Taylor 1981-3-16 Taylor 3412 Butte T21N R4E southcenter sec 16; Cherokee q. E side of Truex Rd, ca. 0.5 mi s of its jct with Hwy 70, ca. 7 mi n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  UCSB44169  Mimulus angustatus Reisentz, Paul 1979-5-13 Butte 4 miles West on Cherokee Road from Highway 70 at Cherokee Point Comment
  UC1012167  Mimulus aurantiacus var. grandiflorus F. W. Pennell and A. A. Heller 1940-6-5 25677 Butte 10-12 mi above Oroville (Route 24); Feather River 182 Comment
  UC767436  Mimulus bicolor R. F. Hoover 1936-5-21 1161 Butte 7 mi n Chico Comment
  UC1594698  Mimulus breweri Lowell Ahart 1992-7-21 6802 Butte about 2 air mi ne Philbrook Reservoir (s side of hollow); Coon Hollow 1737 Comment
  HSC86825  Mimulus glaucescens Robert A. Schlising 1963-5-4 2564 Butte S of Cohasset, 5.2 mi. N of Jct. Cohasset Hwy. and Kiefer Rd., along Cohasset Hwy. Comment
  UC176073  Mimulus glaucescens A. A. Heller 1912-5-23 10755 Butte n Oroville (Table Mountain Olive Ranch) Comment
  SEINET12318322  Mimulus glaucescens K. D. Johnson 1978-1 20 Butte along Cohasset Rd toward Cohasset, 9 road mi N of East Ave, intersection in Chico 366 Comment
  JEPS48318  Mimulus guttatus Paul C. Hutchison with J. K. Wright and R. Bacigalupi 1963-6-1 2686 Butte w side Pulga Bridge; North Fork of Feather River 472 Comment
  RSA32856  Mimulus guttatus A. A. Heller 1938-4-14 15028 Butte Summit of Table Mtn. 305 Comment
  POM252815  Mimulus kelloggii A. A. Heller 1938-4-14 15025 Butte The treeless, undulating plain of Table Mountain. 305 Comment
  UCSB63615  Mimulus kelloggii Sterling, Lynda 1986-3-18 Butte S bank of Butte Creek; ca. 150 yds wsw of covered bridge; ca. 7 mile E of Chico 91 Comment
  RSA107407  Mimulus layneae L. S. Rose 1955-6-14 55096 Butte Magalia. 732 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
  RSA4110  Mimulus moschatus var. sessilifolius E. B. Copeland 1929-7-13 463 Butte Jonesville. 1550 Comment
  JEPS95802  Mimulus pilosus Lowell Ahart 1999-8-13 8133 Butte about 1 mile southeast of Ord Ferry; Chico; northwest of Parrott Landing; about 1 mile southeast of Ord Ferry; about 2 miles southeast of Ordbend; about 12 miles (air) southwest of Chico 32 Comment
  JEPS121901  Mimulus primuloides var. primuloides Lowell Ahart 2014-7-10 19613 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  RSA589915  Mimulus tilingii Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7226 Butte North Table Mountain, W of Cherokee Rd, N of Oroville. S side Beatson Hollow, ca. 1.15 airmiles NW of entrance on Cherokee Rd. Comment
  RSA0116104  Mimulus torreyi Lowell A. Ahart 2014-4-13 19660 Butte About 150 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  UC196166  Mimulus torreyi A. A. Heller 1914-5-18 11414 Butte near Forest Ranch; west slope of the Sierra 701 Comment
  CHSC10733  Minuartia californica Lowell Ahart 1967-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC40650  Minuartia californica Ahart; Jokerst 1985-3-24 4868 Butte Found west of Lunt Road, about 1/2 mile north of the intersection of Lunt Road and Highway 70, north of Yankee Hill. 550 Comment
  CHSC93358  Minuartia californica Lowell Ahart 2006-4-28 12551 Butte About 150 yards south of the rim of Beatson Hollow, about 1 mile (air) west of the Iron Gate along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 333 Comment
  CHSC93500  Minuartia californica Lowell Ahart 2006-5-8 12590 Butte Margins of a vernal pool, about 80 yards south of the three Gray Pines on the rim of Coal Canyon, about 1 3/4 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 346 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
  RSA636047  Minuartia californica Michael A. Vincent, Ethan H. Freid 1998-4-6 8122 Butte Table Mountain. Comment
  CHSC75488  Minuartia douglasii G. F. Hrusa; T. D. Wilfred 1997-5-7 13721 Butte Sierra Nevada. Serpentine outcrop on SSE slope above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 51 N, 121 34 W']. 750 Comment
  SEINET10899189  Minuartia douglasii Mary Susan Taylor 1981-5-7 Taylor 3644 Butte T20N R6E se/se sec 25, Clipper Mills quad. Along spur rd, ca. 0.5 mi SE of its jct with Fields Ridge Rd-20N24.6, ca. 3 air mi S of Feather Falls community. Yellow Pine Forest; 3200 ft. 975 Comment
  POM274266  Mitella breweri J. W. Morrison 1929-06 s.n. Butte Oroville-Quincy. Sierra Nevada mtn range. Feather River watershed. 1829 Comment
  CHSC116635  Moenchia erecta subsp. erecta Lowell Ahart 2016-4-15 20744 Butte On both sides of Swedes Flat road, about 1/2 mile southwest of Dutch Ravine, about 8 miles (air) southeast of Oroville. 384 Comment
  CHSC52180  Mollugo verticillata Pauleen Broyles 1987-5-21 1048 Butte The Nature Conservancy Vina Plains Preserve, Wurlitzer Addition. Scattered along banks of Singer/Pine Creek. Comment
  JEPS120585  Mollugo verticillata Lowell Ahart 2013-11-18 19271 Butte Below the high-water line of Lake Oroville, about 200 yards east of the boat ramp at the end of Stringtown Road, about 2.5 air miles northeast of Hurleton. Comment
  JEPS42874  Mollugo verticillata W. L. Jepson 1939-8-17 19459 Butte near Oroville (Feather River); Feather River 45 Comment
  SEINET9776682 Image available Mollugo verticillata Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  SEINET8263327  Mollugo verticillata Richard R. Halse 2006-8-2 6979 Butte Chico; in the Lindo Channel Greenway where it crosses under Mangrove Ave. 92 Comment
  SEINET10865494  Monardella Mary Susan Taylor 1978-7-19 Taylor 1751 Butte On W side of Upper Scotts John Road, ca. 2 mi N of its junction with Scotts John Road, ca. 4 mi E of Jonesville. 1829 Comment
  CHSC51225  Monardella breweri subsp. lanceolata Lowell Ahart 1984-6-8 4662 Butte On the road cutbank along Ponderosa Way, about 1/8 mile west of the Ponderosa Dam, about 2 miles north-west of Forbestown. 335 Comment
  JEPS110081  Monardella odoratissima subsp. glauca Lowell Ahart 2006-7-16 12960 Butte Near the open mudflow area, on the north side of Humboldt Road, about 1 1/2 miles (air) southwest of Butte Meadows 1435 Comment
  CAS-BOT-BC215538  Monardella odoratissima subsp. pallida A. A. Heller 1917-7-29 12860 Butte Summit above Jonesville 2133 Comment
  CHSC43035  Monardella sheltonii L. P. Janeway 1987-6-8 2179 Butte 4.5 mi south of Big Bar Mtn (via rd). 899 Comment
  CAS-BOT-BC220254  Monardella sheltonii Alice Eastwood 1913-6-18 s.n. Butte Chico 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
  CAS-BOT-BC444887  Montia fontana A. A. Heller 1914-3-18 11209 Butte Eight miles north of Oroville Comment
  CHSC12406  Montia parvifolia Lowell Ahart 1973-5-31 Butte Near Little North Fork, Feather River. 1066 Comment
  CHSC45101  Montia parvifolia Lowell Ahart 1988-6-29 6109 Butte Along Bean Creek, at bridge on Bean Creek road, about 1/2 mile south-west of Johnson Ranch, about 2 miles south of Little Bald Rock. 609 Comment
  POM101999  Montia parvifolia Mrs. R. M. Austin 1883-05 19 Butte Chico Creek Comment
  UC83795  Montia parvifolia Mrs. R. M. Austin 1883-5-1 45 Butte Little Chico Canyon Comment
  UCD101762  Montia parvifolia Brian Bagley 1981-5-17 26 Butte 2.5 miles south of Arch Tunnel on Hwy 70. Cresta Powerhouse Substation. 463 Comment
  CHSC117749  Morus alba Lowell Ahart 2016-10-25 21374 Butte On the west side of a ditch, about 50 yards south of the Little Pump, Peter Ahart Ranch, about 2 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville. 30 Comment
  RSA0119326  Muhlenbergia andina Lowell A. Ahart 2014-8-13 19702 Butte About 80 yards southeast of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1638 Comment
  CAS-BOT-BC263356  Muhlenbergia asperifolia Lowell Ahart 1987-5-27 5708 Butte On a sand bar along the North Fork of teh Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap 271 Comment
  CAS-BOT-BC260538  Muhlenbergia filiformis A. A. Heller 1917-7-28 12833 Butte Butte Meadows 1280 Comment
  CHSC103439  Muhlenbergia filiformis Lowell Ahart 2009-11-19 16546 Butte About 80 yards southeast of the gate, about 70 yards east of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west of Highway 32, about 10 miles northeast of Chico. 269 Comment
  CHSC40647  Muhlenbergia filiformis Lowell Ahart 1985-10-12 5198 Butte Near the east side of Kunkle Reservoir, about 2 miles south of Paradise. 502 Comment
  CHSC51671  Muhlenbergia mexicana M. Bailey 1990-10-9 415 Butte In the vicinity of the intersection of the East and West Branches of Clear Creek, near Pentz Road on the Butte College campus. 85 Comment
  CHSC31725  Muhlenbergia rigens L. Ahart 1974-9-30 638 Butte On banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  JEPS124199  Muhlenbergia rigens Lowell Ahart 2015-10-9 20544 Butte About 3/4 mile northwest of the intersection of Bull Hill Road, Skyway, and Humbug Road, about 4 miles (air) north of Inskip. Comment
  UCD87063  Muhlenbergia rigens L. E. Hazeltine 1916-7-27 s.n. Butte Chico. Comment
  CHSC55399  Myosurus minimus subsp. minimus L. P. Janeway 1991-5-1 3922 Butte Ca 1 mi south of Wyandotte and ca 1/4 mi west of Dunstone Drive. 182 Comment
  SEINET11268246  Myriophyllum spicatum Lowell Ahart 2001-6-3 8749 Butte On the west side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville.; 0 38 Comment
  UCD150362  Najas guadalupensis subsp. guadalupensis William Anderson 1964-8-9 s.n. Butte Gridley-Colusa Rd. Comment
  CHSC24489  Nama lobbii M. S. Taylor 1976-6-28 1165 Butte Ca. 4 mi se of Jonesville on Scotts John Creek Rd, ca. 2 ft n of rd. 1828 Comment
  CHSC105810  Navarretia capillaris Lowell Ahart 2010-9-21 17208 Butte About 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC112682  Navarretia filicaulis Lowell Ahart 2013-7-1 18818 Butte Open disturbed area, about 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 737 Comment
  CHSC30686  Navarretia filicaulis M. S. Taylor; R. Schlising 1980-7-6 3063 Butte On w side of Hwy 32, ca. 0.1 mi s of Loma. 1127 Comment
  CHSC45755  Navarretia filicaulis L. P. Janeway 1987-6-13 2195 Butte Saddle along Ponderosa Way (Rim Rd) 3.4 mi NE of Jarbo Gap. 841 Comment
  UC423491  Navarretia filicaulis David D. Keck 1930-7-25 976 Butte 10 mi e Oroville; Sierra Nevada, Hurleton 487 Comment
  SBBG128717  Navarretia filicaulis L. Ahart 2013-7-1 18818 Butte ca. 150 yards E of the intersection of Forbestown Rd and Black Bart Rd, ca. 3.25 mi SW of Forbestown 737 Comment
  UC70271  Navarretia heterandra R. F. Hoover 1937-5-19 2239 Butte 10 mi nw Chico ((= near Cana)) Comment
  JEPS127016  Navarretia intertexta Lowell Ahart 2016-5-24 20864 Butte About 150 yards south of La Porte Road, about 1/4 mile southwest of the intersection of La Porte Road and Loma Rica Road, about 3 1/4 miles (air) northeast of Honcut. Comment
  UC856827  Navarretia intertexta A. A. Heller 1914-5-11 11386 Butte 8 mi n Oroville Comment
  JEPS110190  Navarretia intertexta subsp. intertexta Lowell Ahart 2006-7-16 13003 Butte On the west side of the poor dirt road, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1524 Comment
  UCD106178  Navarretia leptalea E. B. Copeland 1928-8-18 s.n. Butte Jonesville. 1524 Comment
  CHSC36432  Navarretia leucocephala D. H. Ikeda 1980-5-10 355 Butte 0.4 mi w of intersection of Hwy. 99 and Broyles Rd., on n side of road in a field. Comment
  SEINET10869734  Navarretia squarrosa Mary Susan Taylor 1977-6-25 Taylor 1393 Butte Foothill Woodland-Yellow Pine Forest transition zone, on Ponderosa Way betwe en Cohasset and Forest Ranch. 610 Comment
  CHSC91118  Navarretia tagetina Lowell Ahart 2005-5-28 11816 Butte Along the south edge of Cox Lane, about 2 miles east of Palermo Honcut Highway, about 10 miles (air) southeast of Oroville. 91 Comment
  RSA715673  Navarretia tagetina L. Ahart 2005-5-27 11813 Butte About 50 yards northeast of the tower, Peter Ahart Ranch, about 2 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 46 Comment
  SD7652  Navarretia viscidula Mrs. R. M. Austin 1883-1 Butte Butte Co Comment
  CHSC68661  Nemacladus capillaris Lowell Ahart 1997-5-29 7741 Butte About 100 yards south of the dirt road and basalt quarry, south of Lumpkin ridge Road, about 1 and 1/4 miles east of Camp 18, east of Feather Falls. 1280 Comment
  CAS-BOT-BC219364  Nemophila John Thomas Howell 1976-4-1 51524 Butte Table Mountain, 4 to 5 miles north of Oroville 152 Comment
  CAS-BOT-BC7203  Nemophila heterophylla C. C. (Mrs.) Bruce 1897-5-1 2037 Butte Big Chico Comment
  CHSC40032  Nemophila heterophylla A. A. Heller 1926-3-24 13912 Butte Moist woodland soil along Chico Creek about six miles east of Chico. Comment
  CHSC90479  Nemophila heterophylla Lowell Ahart; Paul Maslin, John Dittes 2005-3-17 11679 Butte Big Chico Creek Ecological Reserve. On the west side of Chico Canyon Road, about 1 mile (air) west of Highway 32, about 7 miles (air) northeast of Chico. 236 Comment
  UC196272  Nemophila heterophylla A. A. Heller 1914-5-8 11376 Butte plateau above Clear Creek (on the Paradise Road); above Clear Creek Comment
  SEINET10969183  Nemophila heterophylla Mary Susan Taylor 1981-4-5 Taylor 3494 Butte T21N R4E ne sec 14; Berry Creek quad. At end of Dark Canyon Rd at turnout near restroom, ca. 3.5 mi s of Big Bend Rds, ca. 5 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  CHSC62466  Nemophila maculata B. Castro; L. Janeway 1991-4-19 442 Butte Ca 10 air mi NE of Oroville, 0.75 mi NW of Oregon Gultch, 0.5 mi S of Montgomery Bar Ravine. 353 Comment
  CHSC38462  Nemophila pedunculata Vernon Oswald 1983-4-25 385 Butte Upper Bidwell Park, Chico, on the north rim ca 500 ft e of the power lines. 249 Comment
  CHSC703  Nemophila spatulata P. Delaplane 1965-5-4 55 Butte In meadow ca. 4-5 mi N of Lake Concow on W side of Forest Road # 24N05. 914 Comment
  SEINET10497062  Nemophila spatulata Mary Susan Taylor 1982-6-24 Taylor 4741 Butte T23N R4E ne/nw sec 13. Pulga SW quad. Rag Dump 5, ca. 2 mi n of Flea Mt, ca. 10 mi n of Jarbo Gap on Hwy 70. Elev ca. 3800 ft. 1158 Comment
  SEINET260328  Nicotiana acuminata var. multiflora Lowell Ahart 1986-11-9 5434 Butte Boat launch area off the Oroville Quincy highway near Canyon Creek about 12 mi NE of Oroville 270 Comment
  SEINET175225  Nuphar lutea subsp. polysepala E. B. Copeland 1930-1 415 Butte Jonesville 1700 Comment
  CAS-BOT-BC400069  Nuphar polysepala E. B. Copeland 1929-7-29 s.n. Butte Jonesville, near Butte Creek House 1750 Comment
  CAS-BOT-BC400310  Nymphaea odorata Arthur Menzies; Barbara Menzies 1969-8-1 s.n. Butte At corner of Nelson West Road & Chico-Butte City Hwy. Comment
  CHSC95360  Nyssa sylvatica L. P. Janeway; Morgan LoRomer 2006-9-29 8889 Butte Rancho Arroyo Chico. Sacramento Valley. On the campus of California State University Chico; two trees at the southwestern corner of Shasta Hall, about 37 m southeast of Legion Ave. half way between Citrus Ave. and Warner St. 59 Comment
  CHSC108847  Oemleria cerasiformis Lowell Ahart 2012-3-2 17768 Butte About 40 yards east of the Pine Trail, south of a deep drainage, about 1/4 mile west of Highway 32, about 8-1/2 miles northeast of Chico. 387 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
  RSA727539  Orthocarpus lacerus Ken Osborne 2007-5-13 s.n. Butte Sierra Nevada Foothills: along Ponderosa Way at Mud Creek, c. 1.5 mi. SE of Cohasset. 701 Comment
  CAS-BOT-BC254365  Oryza sativa G. P. Rixford 1914-9-4 s.n. Butte Biggs Comment
  UC1586596  Osmorhiza brachypoda Vernon H. Oswald and Lowell Ahart 1991-6-5 4651 Butte ca 1.5 air mi nw Platte Mtn. Lookout (dirt road to Minnie-Ha-Ha Mine located on Big Chico Creek, w side of Hwy 32, between Forest Ranch and Lomo) 762 Comment
  CHSC42637  Osmorhiza chilensis Vernon Oswald 1984-4-9 1133 Butte Feather Falls Trail, 2.1 trail mi from the trail head at the end of Bryant Ravine Rd. 457 Comment
  CHSC88069  Osmorhiza chilensis R. D. Fischer 2004-6-6 155 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Located mid-way down Pine Trail. 419 Comment
  UC1423439  Ottelia alismoides T. C. Fuller and G. D. Barbe 1977-9-20 2334 Butte e of Cherokee Canal (approx. 0.5 km s of Highway 162, drainage canal w of Biggs Rice Experiment Station) Comment
  UCD138166  Ottelia alismoides T. C. Fuller 1977-9-20 2334 Butte west of Biggs Rice Experiment Station, east of Cherokee Canal, approximately 0.5 km south of Highway 162. Comment
  CHSC108975  Oxalis pes-caprae Lowell Ahart; John Dittes, Josephine Guardino 2012-4-6 17808 Butte On the north side of Big Chico creek, Lost Park in Bidwell Park, city of Chico. 60 Comment
  CHSC33965  Oxypolis occidentalis M. S. Taylor; L. Ahart 1981-8-15 4193 Butte N side of Coon Hollw Rd (26N74), 1.2 mi e of its jct with Humbug Rd, ca. 12 mi ne of Stirling City. 1676 Comment
  CAS-BOT-BC316889  Packera eurycephala var. lewisrosei Lewis Samuel Rose 1963-6-2 63067 Butte north fork of the Feather River, 2 mi south of Pulga 579 Comment
  CHSC35669  Packera eurycephala var. lewisrosei R. E. Preston 1982-4-22 260 Butte Lakeside; Lake Oroville, ca. 1/2 mi ne of Lime Saddle Powerhouse, ca. 4.5 mi se of Paradise. 286 Comment
  SEINET11799184  Packera eurycephala var. lewisrosei L. S. Rose 1939-1 39247 Butte North Fork of Feather River, 3 mi S of Pulga 610 Comment
  UC600480  Paeonia brownii H. F. Copeland 1920-5-22 205 Butte Jonesville Comment
  CHSC45210  Panicum acuminatum Lowell Ahart 1984-7-19 4726 Butte On road banks, about 1 1/2 miles south-east of Bald Mountain, 3/4 mile west of Oak Point, about 4 air miles north-east of Stirling City. 1371 Comment
  CHSC31631  Panicum capillare L. Ahart 1974-7-19 550 Butte Along banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CDA2143  Panicum rigidulum J. T. Howell 1961-9-22 36714 Butte Bank of Feather River, Oroville. Comment
  CHSC78173  Parentucellia viscosa Lowell Ahart 2000-6-6 8456 Butte In a meadow on the bottom of an old gold mining pit, about 200 yards northwest of where the dirt road crosses Oregon Gulch creek, about 1/4 mile northeast of the cemetery, about 1 1/2 mile south of Crystal Hill, about 5 miles (air) east of Oroville Dam. 304 Comment
  RSA712869  Parentucellia viscosa L. P. Janeway 2006-5-4 8574 Butte Northern Sierra Nevada Foothills. Above the east side of Pentz Road 0.5 km north of Durham-Pentz Road. 201 Comment
  UC665655  Parvisedum pumilum Herbert L. Mason 1941-4-6 12409 Butte 3 mi s of Chico (near junction of road to Paradise, Sierra Nevada Foothills); Sierra Nevada Foothills 91 Comment
  CHSC31475  Paspalum urvillei L. Ahart 1980-7-29 2496 Butte Along the edge of a stream, near Hurleton Swedes Flat Rd, ca. 1 mi s of Forbestown Rd, near Hurleton. 600 Comment
  SEINET10453506  Paxistima myrsinites Lowell Ahart 1983-3-28 Ahart 3909 Butte E bank of Woodleaf Creek above the rd, ca. 3/8 mi sw of Forbestown Reserv., ca. 4 mi ne of Forbestown. Yellow Pine Forest. 450 Comment
  CHSC39060  Pedicularis attollens Robert A. Schlising 1982-8-1 4369 Butte N part of county, E of Inskip at Jones Meadow. 1853 Comment
  CHSC64224  Pedicularis attollens S. C. Morey 1983-7-23 583 Butte Cherry Hill Meadow. On n side of Humboldt Rd., ca. 3.2 mi e of Butte Meadows. 430 Comment
  CHSC27958  Pellaea andromedifolia Sam M. Grossberg 1978-4-22 21 Butte North Table Mountain, ca. 2.5 mi nne of Cherokee Road, 6.0 mi n of Oroville. 365 Comment
  JEPS115072  Pellaea andromedifolia Lowell Ahart 2007-11-3 14550 Butte West of the high water line of Lake Oroville, about 1/2 mile east of the Power House below Kunckle Reservoir, about one mile north of the Lime Saddle Campground, about 5 miles (air) southeast of Paradise 322 Comment
  SBBG128079  Pellaea andromedifolia L. Ahart 2009-5-30 15781 Butte N of a broad open dainage in oak woodland, ca. 100 yards N of the dirt rd which is Ten Mi House Rd, Upper Bidwell Park, ca. 0.5 mi W of Hwy 32, ca. 10 mi NE of Chico 269 Comment
  UC1562403  Pellaea breweri Vernon Oswald and Lowell Ahart 1990-6-20 4310 Butte between Philbrook Reservoir and Carr Mine (ca. 0.5 mi w of Butte-Plumas county line, s side Philbrook Creek) 1962 Comment
  CAS-BOT-BC67557  Pellaea mucronata Lowell Ahart 1969-3-27 s.n. Butte Honcut - Peter Ahart Ranch 45 Comment
  CHSC28881  Pellaea mucronata M. S. Taylor 1980-2-24 2323 Butte On the east branch of Mud Creek, ca. 1/4 mi upstream from Richardson Springs Hotel, ca. 6 mi ne of Chico. 243 Comment
  SEINET10529804  Pellaea mucronata Mary Susan Taylor 1979-11-15 Taylor 2291 Butte Peter Ahart Ranch, Honcut. With Jim Jokerst & Lowell Ahart. 46 Comment
  SEINET10529810  Pellaea mucronata Mary Susan Taylor 1980-4-27 Taylor 2547 Butte T23N R3E ne sec 27. Paradise quad. Ca. 1 mi S of Nimshew, ca. 1/4 mi E of Nimshew Rd; Yellow Pine Forest. With J.D. Jokerst. 610 Comment
  SEINET10834166  Pellaea mucronata Mary Susan Taylor 1976-4-24 Taylor 1068 Butte Abundant on Big Bald Rock, ca. one quarter mi W of Bald Rock Rd, ca. 3 mi E of Lake Madrone, ca. 13 mi NE of Orovil le; with Quercus chrysolepis. 998 Comment
  CHSC44732  Penstemon azureus R. Banchero 1980-5-7 143 Butte Along Hwy 70, 2.4 mi S of its jct with the Feather River. 609 Comment
  UC1302274  Penstemon azureus var. angustissimus Richard M. Straw 1962-6-26 2193 Butte 5 mi n Bidwell Bar; n of Bidwell Bar 580 Comment
  UC195477  Penstemon gracilentus A. A. Heller 1914-8-7 11664 Butte summit back Jonesville; summit back of Jonesville 2133 Comment
  CHSC1866  Penstemon heterophyllus var. purdyi L. Oliver; D. Sloan 1935-5-10 Butte Butte Creek Canyon. Comment
  SEINET10548024  Penstemon laetus Mary Susan Taylor 1980-6-14 Taylor 2878 Butte T21N R5E ne sec 25. Big Bend quad. On N sid eof Zink Road, near entrance to Zink Ranch, ca. 2 mi E of Lake Madrone; Yellow Pine Forest. 762 Comment
  SEINET10548026  Penstemon laetus Mary Susan Taylor 1980-8-2 Taylor 3204 Butte T27N R5E center sec 32, Jonesville quad. Humboldt Peak, N tip of the county. 2155 Comment
  CHSC31196  Penstemon laetus var. leptosepalus M. S. Taylor; R. Schlising 1980-7-6 3078 Butte On n side of Old Humboldt Rd, beneath power lines, ca. 0.9 mi w of Butte Meadows Forestry Station. 1341 Comment
  CHSC44709  Penstemon laetus var. leptosepalus R. Banchero 1980-6-13 222 Butte Little Bald Rock, ca 1.0 mi E of Bald rock Rd. 1036 Comment
  CHSC71655  Penstemon laetus var. leptosepalus Vernon H. Oswald; Lowell Ahart 1998-8-11 9473 Butte Four Trees-Coyote Gap Rd. 0.1 mi west of Four Trees. 1578 Comment
  JEPS93937  Penstemon laetus var. leptosepalus Vernon H. Oswald and Lowell Ahart 1998-8-11 9473 Butte Four Trees-Coyote Gap Road 0.1 mi w of Four Trees; Four Trees-Coyote Gap Road 1578 Comment
  UC887104  Penstemon laetus var. leptosepalus Lewis S. Rose 1939-6-7 39236 Butte 3 mi s Pulga (S Fork Feather River); , s of Pulga 609 Comment
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  POM193323  Penstemon newberryi subsp. newberryi E. B. Copeland 1930-7-6 458 Butte Above Jonesville. 1900 Comment
  CHSC42829  Penstemon personatus L. P. Janeway 1987-6-27 2356 Butte Overlooking Keyser Cr; 5.4 mi N of Ramsey Bar along the Concow Rd. Mostly on NW-facing roadcut but also scattered on slope immed. above. 1554 Comment
  CHSC42835  Penstemon personatus L. P. Janeway 1987-7-4 2434 Butte Along the Concow Rd ca 1 mi N of Bald Mtn (towards Jones Mdw). 1786 Comment
  SEINET12331900  Penstemon personatus L. Ahart, Ahart, P. 1984-1 4671 Butte about 1/2 mi E of Bald Mtn, about 5 mi NE of Stirling City 1900 Comment
  UC600440  Penstemon rydbergii var. oreocharis H. F. Copeland June, 1931 Butte Jonesville 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
  CAS-BOT-BC77139  Pentagramma triangularis subsp. semipallida Jeffrey D. Mott 1978-4-24 8 Butte West Branch Feather River - Cherokee Quadrangle 280 Comment
  CHSC30083  Pentagramma triangularis subsp. semipallida M. S. Taylor; J. D. Jokerst, L. Ahart, R. Schlising 1980-7-20 3190 Butte Big Bald Rock, ca. 3 mi e of Lake Madrone. 997 Comment
  CHSC32116  Pentagramma triangularis subsp. semipallida L. Ahart 1976-7-7 1171 Butte Along edge of rd to Little North Fork of the Feather River, ca. 2 mi s of Junction House. 1219 Comment
  CHSC32690  Pentagramma triangularis subsp. semipallida M. S. Taylor 1981-3-24 3439 Butte On s side of Hwy 70 just e of Heinz Creek, ca. 1 mi e of Pulga. 487 Comment
  CAS-BOT-BC77140  Pentagramma triangularis subsp. semipallida M. S. Taylor 1981-1-5 3368 Butte CA. 100 ft. E of Pentz-Magalia Hwy Ca. 1 mi. S of Kunkle Reservoir, ca. 3 mi S of Paradise. Cherokee Quad. 411 Comment
  JEPS104149  Pentagramma triangularis subsp. triangularis Lowell Ahart 2003-4-10 10075 Butte Below the basalt cliffs, on the e rim of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 309 Comment
  CAS-BOT-BC77086  Pentagramma triangularis subsp. triangularis J. L. Wilson 1970-2-27 235 Butte North bank of Honey Run Road, approx. 50 yds. up hillside in rocks. Ca. 5 mi. east of intersection of Honey Run Rd. 91 Comment
  CHSC37267  Perideridia bolanderi subsp. bolanderi L. Ahart 1982-6-15 3565 Butte Ca. 1.5 mi e of Camp 18, ca. 8 mi e of Feather Falls. 1000 Comment
  CHSC25263  Perideridia kelloggii M. S. Taylor 1977-6-27 1398 Butte On Butte College campus, ca. 15 mi s of Chico. 30 Comment
  JEPS12433  Perideridia kelloggii H. A. Dutton 1912-1 Butte e Chico; Hooker Oak Comment
  CHSC40219  Perideridia lemmonii Lowell Ahart 1985-7-9 5112 Butte 120 yards south of the dirt road, Lumpkin Ridge, 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 975 Comment
  JEPS120019  Persicaria hydropiper Lowell Ahart 2012-10-28 18522 Butte On the south side of Big Chico Creek, about 50 yards east of Table 5, west of Cedar Grove, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC413707  Persicaria hydropiper Lowell Ahart 1981-9-19 3177 Butte Arch Rock Tunnel, Hwy. 70 550 Comment
  CAS-BOT-BC418953  Persicaria lapathifolia Lowell Ahart 1974-11-9 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  CHSC113359  Persicaria lapathifolia Lowell Ahart 2014-4-25 19409 Butte Sides of a cleaned ditch, on the west side of Richvale South Highway, south of the intersection of Richvale West Road and Richvale South Highway, Richvale. 30 Comment
  CAS-BOT-BC419173  Persicaria maculosa Lowell Ahart 1981-9-19 3189 Butte Cresta Power House 550 Comment
  CDA42927  Persicaria punctata L. Ahart 2012-9-28 18461 Butte Just east of the east end of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. Comment
  SBBG119817  Persicaria punctata L. Ahart 2006-10-8 13428 Butte E side of the N Fk of the Feather River, just E of where the river flows into a pool, on the W side of Hwy 70, ca. 0.5 mi N of Cresta Power House 609 Comment
  CHSC75265  Petrorhagia dubia Jennifer Slater 1997-4-20 26 Butte At the Wurlitzer addition of the Vina Plains Preserve, west of Highway 99, approx 10 miles north of Chico. 67 Comment
  CHSC25277  Petroselinum crispum K. R. Stern 1977-4-25 Butte Comment
  UC726915  Phacelia corymbosa A. A. Heller 1938-5-28 15118 Butte on Feather River Hwy 23 mi Oroville Comment
  CHSC27844  Phacelia distans Patty L. Venable 1978-4-21 21 Butte 6 mi n of Oroville, 1 mi w of Cherokee Rd. 304 Comment
  CHSC40595  Phacelia egena Ahart; Jokerst 1985-3-24 4857 Butte Serpentine Point, west of Yankee Hill, around large rock outcroppings. 550 Comment
  SEINET11263935  Phacelia egena Lowell Ahart 1992-9-20 6922 Butte Lake Oroville, about 1/8 miles west of the Enterprise Boat Launch Ramp, about 3/4 miles SW of Rocky Point.; 0 244 Comment
  CHSC42353  Phacelia heterophylla subsp. virgata Lowell Ahart 1987-5-9 5593 Butte On dry disturbed soil along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  UC1602038  Phacelia heterophylla subsp. virgata P. L. Johannsen 1936-7-17 Butte 2 1/2 mi sse Butte Mdws.; Lassen National Forest, Paynes Creek Quadrangle Comment
  RSA0055024  Phacelia heterophylla var. virgata James R. Shevock 1972-5-19 1778 Butte Jarbo Pass, Highway 70, Feather River Canyon. 701 Comment
  UC1564794  Phacelia procera V. Oswald and L. Ahart 1989-7-12 3851 Butte ca 2 air mi sw Lotts Lake (ca 3 air mi se of Philbrook Reservoir); Big Kimshew Creek 1926 Comment
  SEINET10497021  Phacelia purpusii Mary Susan Taylor 1980-7-6 Taylor 3064 Butte T25N R3E se sec 10, Butte Meadows quad; on W side of Hwy 32, ca. 0.1 mi S of Loma, up on rocky open edge of Yellow Pine Forest. With R.A. Schlising. 1128 Comment
  UCR80229  Phacelia racemosa H. F. Copeland 1931-6-9 1538 Butte Jonesville, near Jones Creek 1529 Comment
  CHSC20453  Phalaris caroliniana Dave Isle 1969-4-18 372 Butte 6 1/2 miles N. of Oroville on Cherokee Road (about 500+ yards W. of road on Table Mtn.). 289 Comment
  UCD80589  Phalaris paradoxa CNPS SN Foothill Team 2005-5-5 SNFN 0156 Butte City of Chico, Upper Bidwell Park, off upper Bidwell Park Road on the N side of the road, about 0.75 miles E of Horseshoe Lake. 99 Comment
  SEINET10949139  Phalaris paradoxa Lewis S. Rose 1937-6-11 Rose 37381 Butte 7 mi W of Honcut. Open fields 23 Comment
  SEINET194972  Philadelphus californicus A. A. Heller 1938-5-30 15130 Butte Near Grizzly Dome tunnel on Highway 24. 610 Comment
  CHSC1645  Philadelphus lewisii R. M. Staley 1952-7-2 Butte W. Branch of Feather River. Comment
  CHSC39536  Philadelphus lewisii Lowell Ahart 1983-6-21 4080 Butte Found growing on dry rocky soil along Bloomer Hill Road, about 3/4 mile west of the Oroville-Quincy Highway, about 15 miles north-east of Oroville. Label says Section 6. 425 Comment
  UC1392744  Philadelphus lewisii R. F. Hoover 1968-5-29 11136 Butte Cohasset Road Comment
  RSA0057776  Philadelphus lewisii Edward Palmer 1892-6-7 s.n. Butte Near Chico. Comment
  CAS-BOT-BC250865  Phleum pratense M. S. Taylor 1978-7-18 1720 Butte On n side of Butte Creek, at jct of Butte Creek and Old Humboldt Rd, ca. 1 mi w of Cherry Hill Campground 1524 Comment
  SEINET4176107 Image available Phleum pratense Lowell Ahart 1985-7-24 5156 Butte Below the high water line of the Forbestown Reservoir, about 50 yards South of the Generator, 4.5 Miles North-East of Forbestown. 351 Comment
  POM282388  Phlox diffusa subsp. diffusa E. B. Copeland 1931-6-19 683 Butte Jonesville. 2100 Comment
  UC880352  Phlox gracilis A. A. Heller 1915-6-27 12041 Butte Jonesville Sierra Nevada 1676 Comment
  CAS-BOT-BC134921  Phoradendron bolleanum Mary E. Wall 1935-11-10 s.n. Butte Magalia Comment
  CHSC3591  Phoradendron densum Susan Carrauthers 1966-3-6 45 Butte 1/4 mi N.E. of Magalia (city) train station on Coutelenc Road. N. of city of Paradise. Comment
  CHSC85727  Phoradendron densum G. F. Hrusa; T. D. Wilfred 1997-7-3 13981 Butte Sierra Nevada. Near summit of serpentine slopes facing SSE above Little Butte Creek, N of Magalia. Immed. E of Holmwood Drive. [Lat./Long. on label is '39 degrees 51' N; 121 degrees 34' W']. 750 Comment
  CAS-BOT-BC141249  Phoradendron serotinum subsp. tomentosum Lowell Ahart 1980-9-10 2621 Butte Little Bald Rock 335 Comment
  CHSC51083  Phoradendron villosum Pauleen Broyles 1988-2-13 1096 Butte The Nature Conservancy Vina Plains Preserve. Wurlitzer Addition. On e. side of Singer Creek in n.e. portion of Wurlitzer Addition. Parasitic on Quercus lobata near the creek. Comment
  JEPS120063  Photinia serratifolia Lowell Ahart 2012-4-9 17849 Butte About 50 feet west of South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. Comment
  SEINET10547000  Phyla nodiflora var. rosea Lowell Ahart 1991-9-14 Ahart 6725 Butte On the south end of the dam, at the large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14. 46 Comment
  CHSC31860  Physalis acutifolia L. Ahart 1972-10-4 142 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC140561  Physocarpus capitatus Lowell Ahart 1981-7-7 2921 Butte Along Black Bart Road, Forbestown. About 0.5 mile west of the Oroville Forbestown Road 700 Comment
  SEINET11934478  Phytolacca americana L. Ahart, Oswall, V. 1985-1 5159 Butte Along La Porta Road about 4 mi NE of Bangor 305 Comment
  CAS-BOT-BC76940  Pilularia americana Lowell Ahart 1978-5-15 s.n. Butte Peter Ahart Ranch, Honcut 50 Comment
  CHSC118034  Pilularia americana Daphne K. Christopher; Hannah Stevens, Lowell Ahart 2003-4-21 230 Butte Off Hwy 99. Ahart Family Ranch along boundary on access road and edge of field 41 Comment
  CHSC78115  Pilularia americana Lowell Ahart 2000-5-21 8378 Butte Slickens from the Cherokee mine, on the east side of Clark Road (Highway 191), about 200 yards south of Dry Creek, about 10 miles (air) northwest of Oroville. 60 Comment
  CHSC82229  Pilularia americana Lowell Ahart 2002-4-14 9482 Butte Area between the Railroad and the Midway Road, 50 yards south of Nelson Dlavo Road, in Nelson. 36 Comment
  JEPS117720  Pilularia americana Lowell Ahart 2010-6-9 16779 Butte About 30 yards south of the poor dirt road, about 70 yards west of the fence, about 1/4 mile east of Cherokee Road, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville 392 Comment
  CAS-BOT-BC76939  Pilularia americana Lowell Ahart 1979-5-25 s.n. Butte 2 miles south of Palermo. Pond on west side of the Western Pacific RR 35 Comment
  NY34618  Pinus attenuata R. C. Walsh 1987-7-7 297 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY61630  Pinus lambertiana E. B. Copeland 1929-7-19 332 Butte This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10866943  Pinus lambertiana Mary Susan Taylor 1975-9-12 Taylor 913 A Butte Yellow Pine Forest, ca. 24 mi NE of Chico, ca. 500 m W of Hwy 32; with Torreya californica, Ceanothus prostratus. 1067 Comment
  CAS-BOT-BC79017  Pinus ponderosa A. A. Heller 1917-7-26 12850 Butte Butte Meadows 1280 Comment
  CHSC31515  Pinus sabiniana L. Ahart 1971-3-17 66 Butte On North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  UC183378  Pinus sabiniana A. A. Heller 1913-3-9 10690 Butte 2 mi n Oroville Comment
  CAS-BOT-BC136583  Piperia leptopetala Chester Dudley 1940-6-1 s.n. Butte Field redacted by CAS, contact the data manager for more information Comment
  CHSC84186  Piperia transversa Lowell Ahart 2003-6-30 10328 Butte Near the small stream, on the south side of Ponderosa Way, about 2 miles (by road) southwest of the Ponderosa Dam, about 2 miles (air) northwest of Forbestown. 490 Comment
  CHSC100465  Pistacia atlantica Lowell Ahart; John Dittes, Josephine Guardino 2008-11-8 15424 Butte On the southeast side of Cedar Grove, Lower Bidwell Park, Chico. 67 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
  CHSC43592  Pistacia vera Vernon Oswald 1987-4-29 2357 Butte Chico Tree improvement Center (former USDA Plant Introduction Station ) in se Chico. 68 Comment
  SEINET10529837  Pityrogramma triangularis Mary Susan Taylor 1979-5-4 Taylor 1981 Butte T21N R6E sec 10. Millsap Bar Campground, ca. 9 mi NE of junction of Millsap Bar Road with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest with limestone outcrops. 1006 Comment
  SEINET10529966  Pityrogramma triangularis var. semipallida Mary Susan Taylor 1980-3-19 Taylor 2390 Butte T19N R6E sw sec 8. Macabes Creek Canyon ca. 100 ft E of Lumpkin Rd, ca. 2.5 mi N of its jct with Forbestown Road, ca. 18 mi NE of Oroville. Cool, wet Ripar ian Woodland. 396 Comment
  SEINET10899934  Pityrogramma triangularis var. semipallida Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5514 Butte Trees Road between Hwy 70 and Coyote Gap, ca. 25 air mi NE of Oroville. Yellow Pine Forest. Comment
  SBBG128020  Plagiobothrys fulvus L. Ahart 2010-5-16 16684 Butte ca. 1/4 mi S of the parking area, N Table Mtn, ca. 4.5 mi NE of Oroville 371 Comment
  CHSC35325  Plagiobothrys fulvus var. campestris M. S. Taylor; K. Tharp 1982-4-8 4281 Butte SE corner of jct of Hys 149 and 99, ca. 10 mi s of Chico. 68 Comment
  CHSC46778  Plagiobothrys glyptocarpus Lowell Ahart 1984-5-7 4590 Butte Near Kunkle Creek, about 1/2 mile north of Kunkle Reservoir, about 2 miles south of Paradise. 548 Comment
  JEPS77831 Image available Plagiobothrys glyptocarpus A. A. Heller 1914-5-16 11202 Butte 8 mi n Oroville Comment
  SFV3138  Plagiobothrys glyptocarpus M. L. Vincent 1962-4-17 202 Butte Sierra Nevada Cherokee Road at Table Mountain. Comment
  UC196289  Plagiobothrys glyptocarpus A. A. Heller 1914-3-16 11202 Butte low hills 8 mi n Oroville Comment
  POM252952  Plagiobothrys greenei A. H. Heller 1938-4-14 15024 Butte Along road near Wick s Corner north of Oroville. Comment
  UCR212286  Plagiobothrys greenei Ayzik Solomeshch 2003-4-9 s.n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road Comment
  CAS-BOT-BC228253  Plagiobothrys hispidulus A. A. Heller 1914-6-22 11496 Butte W slope of Sierra Nevada at Chico Meadows 1219 Comment
  UC671791  Plagiobothrys hispidulus H. F. Copeland 1938-7-4 Butte Jonesville Comment
  CHSC29050  Plagiobothrys humistratus R. A. Schlising 1980-4-20 3568 Butte Between Singer Creek and Cana-Pine Creek Road. In trail. Comment
  CHSC29017  Plagiobothrys scriptus M. S. Taylor; J. D. Jokerst 1980-3-28 2405 Butte Around vernal pools, just e of Chico, between Humboldt Rd and Hwy 32, ca. 1/4 mi e of Forest Ave., ca. 1 1/2 mi e of Hwy 99. 76 Comment
  CHSC103675  Plagiobothrys shastensis Lowell Ahart 2010-4-30 16601 Butte Open are along a ridge, on the north side of a trail, west of disk golf area, on a ridge about 350 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 353 Comment
  JEPS104013  Plagiobothrys shastensis Lowell Ahart 2003-5-9 10124 Butte North of the Larkin Rd Boat Ramp, on the n side of the access road to the boat ramp at the Thermalito Afterbay, ca 300 yd w of Larkin road, ca 1 1/4 mi south of the Oroville Airport, ca 5 mi (air) sw of Oroville. 38 Comment
  CHSC26798  Plagiobothrys stipitatus M. S. Taylor; H. Hayes 1978-4-14 1566 Butte In vernal pools, on e side of Williams Rd, ca. 1/4 mi n of Pentz Rd, on Butte College campus, ca. 15 mi s of Chico. 30 Comment
  CDA40661  Plagiobothrys stipitatus T. C. Fuller 1958-4-15 4794 Butte Highway 99E, 10 miles northwest of Chico. 0 Comment
  CHSC103723  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-5-14 16652 Butte On the west side of the old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 395 Comment
  CHSC104001  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2010-6-20 16819 Butte Bottom of Wyandotte Creek, under the government pole line, about 1 mile east of Palermo Honcut Highway, Guidci Ranch, about 7 miles (air) southeast of Oroville. 47 Comment
  CHSC117424  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-31 20904 Butte About 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 mile east of Honcut, about 12 miles (air) south of Oroville. 29 Comment
  CHSC38278  Plagiobothrys stipitatus var. micranthus Vernon Oswald 1983-4-20 356 Butte Upper Bidwell Park, Chico, near the s-w corner of the Omicron Enclosure (near the n boundary of the park ca. 500 ft e of the junction of Upper Park Rd. and Wildwood Ave.). Along the edge of vernal pond. 85 Comment
  CHSC43552  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1979-5-20 1881 Butte On the west side of the Western Pacific Railroad, about 2 miles south of Palermo. 30 Comment
  CHSC87206  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2004-4-10 10730 Butte Road gutter on the north side of Highway 149, about 1 mile northwest of the intersection of Highway 149 and Highway 70, about 6 miles (air) northwest of Oroville. 69 Comment
  JEPS127037  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2016-5-31 20904 Butte About 1/8 mile east of Palermo Honcut Highway, Peter Ahart Ranch, about 2 1/4 miles north and 1/8 mile east of Honcut, about 12 miles (air) south of Oroville. Comment
  RSA475191  Plagiobothrys stipitatus var. micranthus Aaron Liston, S. Meury 1988-5-28 743 -3 Butte 15 km (air) SE of Chico. 1/4 mi. S of Pentz Rd., 1/8 mi. E of Hwy 99 55 Comment
  SBBG128250  Plagiobothrys stipitatus var. micranthus L. Ahart 2010-6-9 16786 Butte ca. 100 yards W of a fence, ca. 0.5 mi S of the improved parking area and Cherokee Rd, N Table Mtn, ca. 5.5 mi NE of Oroville 398 Comment
  CHSC40445  Planodes virginica Lowell Ahart 1985-3-14 4846 Butte Around vernal pools, in one of the pasture fields, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 50 Comment
  CHSC96378  Planodes virginica Lowell Ahart 2007-3-7 13586 Butte Peter Ahart Ranch, about 1 1/2 miles north and 1 1/10 miles east of Honcut, about 12 miles south of Oroville. 31 Comment
  SEINET10968933  Plantago coronopus Mary Susan Taylor 1982-4-28 Taylor 4346 Butte T17N R1E se/s sec 13. Pennington quad. Graylodge Waterfowl Refuge, n side of Rutherford Rd, 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC28636  Plantago erecta M. S. Taylor 1979-3-31 1974 Butte Jct of Pentz-Magalia Rd and Pentz Rd, se corner, ca. 1/4 mi w of Hwy 70, ca. 22 mi n of Oroville. 198 Comment
  CHSC90827  Plantago erecta Lowell Ahart 2005-5-2 11773 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 25 Comment
  RSA0036649  Plantago erecta Lowell A. Ahart 2012-4-9 17851 Butte On the north side of South Rim Trail, west of the power lines, Upper Bidwell Park, about one mile (air) northeast of Chico. 143 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
  UCD80496  Plantago erecta CNPS SN Foothill Team 2005-4-14 SNFN 0033 c Butte Rock Ranch (private), in the NE corner of the horse pasture, ca. 10 m from the fence; west of the barn and house. 105 Comment
  UCD124427  Plantago erecta M. Jeanne Boze 1978-4-12 16 Butte ca. 3 miles east of Chico on Humboldt Road. 1 mile northeast of Bruce Road intersection. 106 Comment
  CHSC42550  Plantago lanceolata Lowell Ahart 1987-5-6 5531 Butte On a gravel bar along the North Fork of the Feather River, near the Poe Power House, about 2 miles south-east of Jarbo Gap. 274 Comment
  SEINET9784516 Image available Plantago lanceolata Richard Carter 2006-7-30 Butte N Chico, 0.3 mi N jct. Nord Hwy and Esplanade, between Esplanade and Hwy CA 99 Comment
  CHSC25444  Plantago major Hayes; Warner 1977-9-11 81 Butte Exactly 9.0 mi from the junction of the Butte Meadows Rd (Humboldt Rd) with Hwy 32. 1249 Comment
  JEPS124275  Plantago major Lowell Ahart 2015-11-18 20663 Butte About 1 1/2 miles southeast of intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. Comment
  UC1609272  Platanthera leucostachys Lowell Ahart 1993-6-26 7006 Butte about 0.25 mi w Lost Creek Reservoir (on the n side of the dirt road) 1036 Comment
  SEINET10476447  Platanus occidentalis Mary Susan Taylor, Vernon H. Oswald 1984-4-4 Taylor 5376 Butte T22N R2E nw sec 25. Along Humbug Rd, ca. 0.5 mi E of Honey Run Covered Bridge, ca. 6 air mi E of Chico. Foothill Woodland/Riparian Woodland; 600 ft elev. 183 Comment
  CHSC76953  Platystemon californicus Ida Ryan 1893-4-1 Butte Rancho Chico. Comment
  CHSC39940  Plectritis ciliosa Lowell Ahart 1984-4-3 4538 Butte Along North Honcut Creek, ca. 1 mile N and 2.7 miles E of Honcut; on Peter Ahart Ranch. 50 Comment
  SEINET10464979  Plectritis ciliosa Mary Susan Taylor 1975-3-10 Taylor 415 Butte Honey Run Covered Bridge, along Butte Creek, from bridge, on bluffs (S side) down to creek and along creek, returning to bridge; ca. 8 mi E of Chico. Riparian Woodland and Foothill Woodland. 152 Comment
  CHSC2457  Plectritis macrocera R. Carter 1965-3-13 159 Butte Found on North Table Mt. ca. 27 yds. SE of point where Old Cherokee Rd. comes over S rim of table. 304 Comment
  JEPS119792  Plectritis macrocera Lowell Ahart 2012-5-4 17994 Butte About 1 1/4 miles northwest of the iron gate on the north side of Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. Comment
  CHSC73945  Pleuricospora fimbriolata B. Castro; L. Gehrung 1998-6-23 795 Butte Ca 4.5 air mi NNE of Brush Creek, ca 1 mi SE of Rogers Cow Camp, on W side of Oro-Quincy Hwy, on E side of SW-trending ridge overlooking Get-Up-and-Get Creek. 1191 Comment
  UC600609  Pleuricospora fimbriolata unknown 1926-6-21 409 Butte Jonesville Comment
  CAS-BOT-BC244400  Poa annua Lowell Ahart 1987-5-6 5559 Butte Along the N Fork of the Feather RIver, near the Poe Power House, about 2 miles SE of Jarbo Gap 271 Comment
  SEINET10593437  Poa annua A. Arthur Heller 1914-3-28 Heller 11243 Butte Chico. Comment
  CHSC105505  Poa bolanderi Lowell Ahart 2010-9-21 17198 Butte On damp humus, under firs, about 50 yards east of the poor dirt road, about 100 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrood Reservoir. 1917 Comment
  CHSC31702  Poa bulbosa L. Ahart 1974-4-11 380 Butte Along North Honcut Creek. Peter Ahart Ranch, Honcut. 45 Comment
  CAS-BOT-BC255973  Poa pratensis Lowell Ahart 1980-5-17 2275 Butte 1/2 mile south-east of Hurleton 600 Comment
  UC478556  Poa pringlei E. B. Copeland 1931-6-22 606 Butte the Summit Jonesville 2000 Comment
  CHSC100913  Poa secunda subsp. secunda R. A. Schlising; R. Banchero 1981-5-19 4061 Butte Lumpkin Ridge, east of village of Feather Falls. 1280 Comment
  CHSC25105  Poa secunda subsp. secunda R. W. Wallstrum 1970-3-26 8 Butte Lower side of dam at Magalia Reservoir, 8 mi from Paradise, on s side of road. 609 Comment
  CHSC30517  Poa secunda subsp. secunda N. E. H. Prouty 1980-4-5 106 .2 Butte Field east side of Cohasset Rd., ca. 1/2 mi. north of the Chico Airport turnoff. 86 Comment
  JEPS120577  Poa sierrae L. P. Janeway 2013-5-20 11111 Butte Northern High Sierra Nevada. Plumas National Forest; mid-slope North Fork Feather River canyon 0.8 air km west-northwest of Cresta Powerhouse, along Camp Creek Road 0.2 road km northeast of Dixie Road. Comment
  CHSC27839  Pogogyne douglasii T. B. Devine 1977-5-22 402 Butte Wurlitzer Farm. 57 Comment
  CHSC772  Pogogyne douglasii D. Bower 1953-7-16 Butte 4A Llano Seco. 30 Comment
  CHSC26828  Pogogyne zizyphoroides M. S. Taylor 1978-5-7 1613 Butte Richvale vernal pool area, ca. 20 mi s of Chico on w side of Hwy 99. 30 Comment
  JEPS118324  Polycarpon tetraphyllum Lowell Ahart 2011-5-1 17338 Butte North side of the intersection of Georgia Pacific Way and Feather River Blvd, about 100 yards east of Highway 70, about 1 mile south of Oroville. 42 Comment
  CAS-BOT-BC167554  Polygala cornuta var. cornuta C. R. Quick 1951-8-21 51 100 F Butte Near Lomo Junction Comment
  CHSC38612  Polygonum aviculare Vernon Oswald 1983-5-31 596 Butte Upper Bidwell Park, Chico, at the Rifle and Trap Range. Gowing in hard, disturbed soil of the parking lot. 103 Comment
  CHSC46193  Polygonum aviculare L. P. Janeway; C. A. Janeway 1986-10-5 1911 Butte Along Pine Creek at Cana Hwy. Gravel bar along the creek. 48 Comment
  CAS-BOT-BC109143  Polygonum bidwelliae Roger Raiche 1986-5-3 60134 Butte Between Chico and Paradise, Neal Road, ca. 4 miles east of State Route 99. 262 Comment
  CHSC28155  Polygonum bidwelliae J. D. Jokerst; Jim Nelson 1979-5-21 250 Butte Abundant on thin soils atop the upper rim rock (Tuscan lava) of nw side of Little Chico Creek Canyon. Fifty yrds se of Hwy 32, 10 mi, n of Chico. 457 Comment
  JEPS117267  Polygonum bidwelliae Lowell Ahart 2010-5-14 16642 Butte On the bottom of the old Humboldt Road, Disc Golf Area, about 150 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 395 Comment
  UC398908  Polygonum bistortoides E. B. Copeland 1929-7-20 357 Butte Jonesville 1550 Comment
  CHSC39043  Polygonum bolanderi R. A. Schlising 1980-7-25 3916 Butte N part of county, along Humboldt Road, 1.9 mi NE jct with highway 32 at Lomo. 1356 Comment
  RSA781349  Polygonum bolanderi Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-1 148 Butte Humboldt road. Comment
  CHSC29705  Polygonum californicum J. D. Jokerst 1980-5-28 896 Butte Top of North Table Mt., S of Cherokee Rd. 403 Comment
  CHSC63714  Polygonum californicum Lowell Ahart 1994-10-8 7549 Butte Along North Rim Trail, near the double power lines, Bidwell Park, about 1 mile east of Chico. 152 Comment
  CHSC71187  Polygonum californicum Lowell Ahart 1998-6-9 7982 Butte On dry dark rocky bare basalt, west of Cherokee Road, about 50 feet southwest of the cow chute along Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville. 403 Comment
  CAS-BOT-BC414369  Polygonum californicum A. A. Heller 1916-10-22 12667 Butte Canon of Chico Creek east of Chico Comment
  CHSC11918  Polygonum douglasii subsp. douglasii E. B. Copeland 1930-7-24 630 Butte Jonesville. 1500 Comment
  JEPS110392  Polygonum douglasii subsp. douglasii Lowell Ahart 2006-8-15 13189 Butte East part of a large meadow with bogs, 5 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  CHSC30897  Polygonum douglasii subsp. spergulariiforme M. S. Taylor 1980-9-19 3338 Butte Ca. 100 ft s of Coutelenc Rd, ca. 500 ft e of its jct with the Skyway, Magalia. 609 Comment
  CHSC39082  Polygonum douglasii subsp. spergulariiforme R. A. Schlising 1979-9-6 3486 Butte Above Butte Meadows, along Humboldt Road, 1.5 mi S of Lassen National Forest and 1.1 mi N of road to Stirling City; in ditches at roadside. Comment
  SEINET10479654  Polygonum lapathifolium Lowell Ahart 1990-10-3 Ahart 6613 Butte On the north side of the East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/8 mile north-east of the Canyon Creek Bridge across Lake Oroville. Foothill Woodland (destroyed). T20N R5E SW/S16. 244 Comment
  SEINET260317  Polygonum lapathifolium Lowell Ahart 1986-11-9 5452 Butte Ca 1/10 mi S of the clay burrow for Oroville Dam 1/4 mi ESW of Oroville 1/4 mi E of Larkin Rd 37 Comment
  SEINET263346  Polygonum lapathifolium Lowell Ahart 1990-10-3 6613 Butte N side of the East Fork of Canyon Creek below the high water line of Lake Oroville ca 1/8 mi NE of the Canyon Creek br 244 Comment
  CHSC105684  Polygonum polygaloides subsp. kelloggii Lowell Ahart 2010-9-21 17211 Butte Open meadow-like area, about 70 yards east of the poor dirt road, about 80 yards west of Big Kimshew Creek, about 1 1/2 miles (air) northeast of Jones Meadow, about 2 1/2 miles (air) southeast of Philbrook Reservoir. 1917 Comment
  CHSC31851  Polypodium calirhiza L. Ahart 1974-3-8 311 Butte Peter Ahart Ranch, Honcut. 45 Comment
  CHSC33692  Polypodium calirhiza L. Ahart 1981-3-29 2716 Butte Along or near Ponderosa Way, ca. 1/4 mi s of Ponderosa Dam, near Forbestown. 350 Comment
  JEPS107675 Image available Polypodium calirhiza Lowell Ahart, P. Maslin, S. Green, J. Guardino, J. Dittes 2005-2-6 11553 Butte Big Chico Creek Ecological Reserve. At the base of Lovejoy Basalt cliffs, about 300 yards west of Highway 32, about 8 miles northeast of Chico 406 Comment
  RSA795637  Polypodium calirhiza L. Ahart 2012-2-22 17740 Butte East edge of Big Chico Creek, about 100 yards south of the trail crossing the creek, about 100 yards west of Ten Mile House Road, about 0.75 miles west of Highway 32, about 9 air miles northeast of Chico. 190 Comment
  SEINET10530417  Polypodium glycyrrhiza Mary Susan Taylor 1981-3-24 Taylor 3433 Butte Two mile stretch along both sides of Feather River Hwy (70), just ne of Pulga to Cresta Powerhouse, ca. 20 mi ne of Oroville; granite gravels & soil; ca. 1700 ft. T23N R5E Pulga quad. 518 Comment
  SEINET10899871  Polypodium glycyrrhiza Mary Susan Taylor 1983-1-17 Taylor 5215 Butte T20N R4E ne sec 6. Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi n of Oroville. Elevation ca. 1225 ft. 373 Comment
  UCD51663  Polypogon interruptus H. F. Copeland 1923-1 s.n. Butte near Nelson. Comment
  SEINET10602418  Polypogon interruptus A. Arthur Heller 1914-5-19 Heller 11419 Butte Hills 8 miles north of Oroville. Comment
  UCD91194  Polypogon maritimus A. A. Heller 1914-5-13 11398 Butte Low adobe places near Butte creek between Durham and Nelson. Comment
  CHSC2178  Polypogon monspeliensis H. Silberman; D. Isaac 1949-5-17 Butte Drainage of Golf course reservoir, Chico. 91 Comment
  CHSC45743  Polypogon monspeliensis S. A. Conley 1986-6-16 40 Butte 2.1 mi. e of Oroville on hwy 162. Along rd. Comment
  CHSC6126  Polypogon monspeliensis E. Parreno 1968-5-12 99 Butte Left side of Upper Bidwell Rd. before junction with Rd. to Diversion Dam. Chico. Comment
  SEINET10960583  Polypogon monspeliensis A. Arthur Heller 1902-5-15 Heller 556 Butte Near Biggs Comment
  UCD136477  Polystichum californicum G. F. Hrusa 1997-5-29 13794 Butte Sierra Nevada, Plumas National Forest. Immediately above Sucker Creek, 1.5 miles SSE of Feather Falls. 720 Comment
  JEPS124287  Polystichum imbricans subsp. curtum Lowell Ahart 2015-10-23 20582 Butte About 400 yards southwest of the Forbestown Reservoir Dam, about 4 miles (air) northeast of Forbestown. Comment
  CHSC60945  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-6-26 7036 Butte Jackass Flat, Mooreville Ridge, about 1 (air) mile north-west of the Lost Creek Reservoir Dam. 1158 Comment
  CHSC87877  Polystichum imbricans subsp. imbricans Lowell Ahart 2004-6-22 11117 Butte On the east side of Doe Mill Road, about 1/4 mile southeast of the bridge across Butte Creek, about 2 1/4 miles (air) southeast of Forest Ranch, about 5 miles (air) west of Stirling City. 628 Comment
  JEPS110225  Polystichum imbricans subsp. imbricans Lowell Ahart 2006-10-8 13442 Butte About 10 yards below a granite bolder, on the southwest side of Highway 70, east of the North Fork of the Feather River, about 1/2 mile north of the Cresta Power House 609 Comment
  UC1609398  Polystichum imbricans subsp. imbricans Lowell Ahart 1993-9-13 7240 Butte ca. 1 mi se Butte Meadows (dirt rd s side of Bolt Creek) 1325 Comment
  CHSC28380  Polystichum kruckebergii Robert A. Schlising; Marc P. Hayes 1978-6-24 3292 Butte Extreme NW Butte County, just below summit of Humboldt Peak above Jonesville. 2133 Comment
  CAS-BOT-BC76710  Polystichum lemmonii V. Oswald; L. Ahart 1988-7-29 3655 Butte Ca. 5 mi. (air) SE of Jonesville on the ridge running eastwards from the peak of Snow Mtn. 2097 Comment
  SEINET10867041  Polystichum munitum subsp. nudatum Mary Susan Taylor 1979-3-20 Taylor 1941 Butte T21N R4E nw1/4 sec. 21. Cherokee Quad. Along old road on N side of Hwy 70 following West Branch of the Feather River, which begins at S side of bridge over N fork of Feather River, ca. 10 mi N of Oroville; limestone outcrops within Foothill Woodland. 305 Comment
  UC176403  Populus fremontii subsp. fremontii A. A. Heller 1913-4-4 10693 Butte levee at Oroville; levee at Oroville Comment
  CAS-BOT-BC452107  Potamogeton crispus M. S. Taylor 1979-10-2 2216 Butte On e bank of Sacramento River at Chico Landing, ca. 5 mi w of Chico. 30 Comment
  UCD138294  Potamogeton gramineus W. H. Lang 1954-8-12 s.n. Butte Biggs Rice Experimental Station. Comment
  CDA818  Potamogeton illinoensis L. Ahart 2001-6-3 8750 Butte In shallow water on the W side of North Honcut Creek, Peter Ahart Ranch, about 1 mi N and 2 3/4 mi E of Honcut, about 12 mi SE of Oroville. Comment
  CHSC33656  Potamogeton natans R. Schlising; J. Fuller, M. Merryman, K. Tarp 1981-7-28 4175 Butte N of Inskip in NE part of county; Coon Hollow; in pond. 1752 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
  CHSC88252  Potamogeton nodosus Lowell Ahart 2004-7-11 11227 Butte On the northeast shore of Paradise Lake, about 1/4 mile southeast of Mosquito Creek, about 4 miles (air) southwest of Stirling City. 814 Comment
  RSA754920  Potamogeton pusillus subsp. tenuissimus Robert A. Schlising 2005-9-16 4463 Butte East of Jonesville and east of Snag Lake, in Summit Lake. 1890 Comment
  CHSC65478  Potamogeton pusillus var. tenuissimus Vernon Oswald 1987-8-10 3209 Butte Cluster of 3 snow lakes ca. 3 mi (air) s of Humbug Summit, 0.5 mi w of the Butte-Plumas county line, ca. 5.5 mi (air) se of Jonesville. In the west lake. 1935 Comment
  UC1562389  Potentilla drummondii subsp. bruceae Vernon Oswald 1990-7-3 4342 Butte ca 0.75 mi s Humbug Summit (ca 4.75 mi e of Jonesville, headwaters of the East Branch Willow Creek); e branch Willow Creek, s of Humbug Summit, e of Jonesville 1950 Comment
  CHSC38646  Potentilla glandulosa subsp. glandulosa Vernon Oswald 1983-5-8 449 Butte Upper Bidwell Park, Chico, on the s bank of Lindo Channel ca. 200 ft downstream from Chico Creek. 79 Comment
  CHSC40331  Poterium sanguisorba Ahart; Jokerst 1985-5-10 4958 Butte Near and on a small washed out dam across the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  CHSC38480  Prunella vulgaris var. lanceolata Vernon Oswald 1983-6-14 686 Butte Upper Bidwell Park, Chico, beside Yahi Trail e of Brown's Hole. 207 Comment
  CAS-BOT-BC159827  Prunus avium C. R. Quick 1953-8-11 53 -125 Butte Rag Dump Meadow se. of Stirling City Comment
  CHSC27210  Prunus cerasifera P. Moyer 1972-3-2 92 Butte N bank of Chico Creek, 100 ft. from Esplanade Bridge. 60 Comment
  CHSC38931  Prunus cerasifera Vernon Oswald 1983-6-27 777 Butte Upper Bidwell Park, Chico, on the n edge of Upper Park Rd. 0.2 mi e of the end of the pavement. 91 Comment
  CHSC27231  Prunus serrulata P. Moyer 1972-3-18 148 Butte CSUC Campus. Front lawn Sociology Bldg. 60 Comment
  CAS-BOT-BC151221  Prunus virginiana var. demissa Lowell Ahart 1988-5-1 5980 Butte On the south side of Big Bend Road, about 1/2 mile south of Jarbo Gap 609 Comment
  CAS-BOT-BC357001  Pseudognaphalium luteoalbum Lowell Ahart 1983-6-26 4151 Butte Along the edge of Ponderosa Way, about 1 1/2 miles south-east of the East Fork of Canyon Creek, about 14 1/2 miles north-east of Oroville. Note: the sign gives Big Ridge Road instead of Ponderosa Way 575 Comment
  SD1575  Pseudostellaria jamesiana E. B. Copeland 1930-6-24 Butte Jonesville 1500 Comment
  JEPS119592  Pseudotsuga menziesii var. menziesii Lowell Ahart 2012-2-22 17737 Butte About 100 yards of Ten Mile House Road, about 3/4 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CHSC29289  Psilocarphus oregonus R. A. Schlising 1980-4-23 3574 Butte Between Singer Creek and Cana-Pine Creek Road (Wurlitzer Ranch). 54 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
  JEPS122031  Psilocarphus tenellus Lowell Ahart 2014-7-2 19545 Butte About 200 yards north of the County Road, about one mile west of the intersection of County Road and Lumpkin Road, about 7 miles northeast of Feather Falls. Comment
  CHSC46336  Psilocarphus tenellus var. tenellus Lowell Ahart 1989-5-23 6245 Butte Along the edges of Avacado Road, about 1/2 mile west of the Oroville Bangor Highway, about 1 mile north-west of Bangor. 213 Comment
  CHSC1618  Ptelea crenulata V. Holt 1933-5-1 Butte Forest Ranch. 548 Comment
  UC109312  Ptelea crenulata Mrs. R. M. Austin jun 1879 263 Butte Comment
  CHSC44618  Pteridium aquilinum var. pubescens Vernon Oswald 1983-7-26 915 Butte Calif. Hwy 32, 11.8 mi n-e of Forest Ranch. 1158 Comment
  CHSC39392  Pycnanthemum californicum L. Ahart 1983-9-17 4436 Butte Ca. 1/4 mi se of Sitrling City. 1100 Comment
  SEINET516142  Pyracantha coccinea Vernon H. Oswald 1998-11-4 9690 Butte Butte Meadows Campground. 1326 Comment
  UC600605  Pyrola asarifolia E. B. Copeland Jul 1929 Butte Jonesville 487 Comment
  CHSC71637  Pyrola dentata Vernon H. Oswald 1998-8-11 9461 Butte USFS 25N95 to Upper Wildcat Creek 0.3 mi north of Four Trees-Coyote Gap Rd. 1463 Comment
  RSA0080631  Pyrola dentata L. Ahart 2006-7-11 12943 Butte 100 yards south of Humboldt Road, about 1 3/8 miles (air) southwest of Butte Meadows. 1401 Comment
  RSA0080634  Pyrola dentata H. F. Copeland 1931-7-15 6167 Butte Jonesville. 1600 Comment
  UC474256  Pyrola picta H. F. Copeland 1930-8-26 Butte Jonesville, woods above hotel Jonesville Comment
  UC478488  Pyrola picta E. B. Copeland 1931-7-15 669 Butte Jonesville Comment
  SEINET10449210  Pyrola picta subsp. integra Mary Susan Taylor 1977-8-17 Taylor 1483 Butte Scattered in Red Fir Forest, at Humboldt Summit at Butte-Tehama County line, ca. 50-100 ft W of Old Humboldt Rd on Butte County side; with Arctostaphylos neva densis, Hackelia californica. 2134 Comment
  CAS-BOT-BC105030  Quercus X morehus Lowell Ahart 1976-7-15 s.n. Butte Near edge of North Honcut Creek, 2 miles N and 3 miles E of Honcut 200 Comment
  CHSC92544  Quercus berberidifolia L. P. Janeway; Matt Brown, Jamie Tuitele-Lewis 2005-4-12 8361 Butte High Cascade Range. Plumas National Forest; 12 m from the northeast shore of Paradise Lake, about 485 m east-southeast of the uppermost tip of the lake. 777 Comment
  UC762329  Quercus berberidifolia R. F. Hoover 1938-8-2 4719 Butte Chico to Paradise road Comment
  CHSC621  Quercus cerris V. Holt 1963-9-5 Butte N.W. corner of Bidwell mansion grounds. Comment
  SFV902  Quercus chrysolepis M. L. Vincent 1960-7-8 57 Butte Sierra Nevada Paradise. Across the road from 5330 Harrison Road. 515 Comment
  CDA35902  Quercus douglasii P. Akers 2002-5-5 s.n. Butte Northern California; Cherokee Rd & Thompson Flat Rd. 73 Comment
  HSC32631  Quercus douglasii Gary S. Lester 1974-4-20 101 Butte Along Pentz Rd. 300 yds. S of intersection with Clark Rd. 76 Comment
  CAS-BOT-BC86115  Quercus dumosa A. A. Heller 1916-9-8 12649 Butte Ten mile house E of Chico Comment
  CHSC32633  Quercus durata var. durata M. S. Taylor; L. Hanson 1981-4-2 3476 Butte Ca. 1/5 mi se of Ponderosa Way bridge over West Branch Feather River, in Genii Mine area, in steep serpentine slope, ca. 3/4 mi (downhill) ne of Magalia. 548 Comment
  JEPS117323  Quercus lobata Lowell Ahart 2010-6-12 16803 A Butte North side of the pond and table, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile (air) west of Highway 32, about 9 miles (air) northeast of Chico 249 Comment
  CHSC98658  Quercus vacciniifolia Robert F. C. Naczi; Anton A. Reznicek 2006-8-1 11392 Butte Northernmost part of county, ca. 3.2 mi NNE of Jonesville, ca. 8 mi NE of community of Butte Meadows, N slopes of Humboldt Peak. 2080 Comment
  UCD47409  Quercus vacciniifolia J. I. Mallory 1970-8-20 380 Butte 3/4 mile north of Ramsey Bar, ca. 10 miles northeast of Stirling City, Butte County, California. 1402 Comment
  CHSC81514  Quercus wislizeni John W. Hunt 2000-4-16 Butte On S side of Centerville Rd. ~2.5 miles E of Centerville cemetery and ~200 m E of bridge. 121 Comment
  UC338639  Quercus wislizeni Lemmon Jun 1891 Butte Bidwell's ranch Comment
  CHSC100496  Quercus wislizeni var. wislizeni Lowell Ahart; John Dittes 2008-11-14 15451 Butte In the south part of Cedar Grove, Lower Bidwell Park, Chico. 67 Comment
  CHSC9109  Ranunculus aquatilis var. hispidulus J. Goodwin 1970-4-28 60 Butte 1.7 mi. on Upper Park Road, Bidwell Park, Chico. Southeast corner of Horse Shoe Pond. Comment
  CAS-BOT-BC378988  Ranunculus arvensis Lowell Ahart 1977-4-28 s.n. Butte Honcut, Peter Ahart Ranch 50 Comment
  CHSC1476  Ranunculus canus Edna Caufield 1904-4-1 Butte Richardson Spring Road. 83 Comment
  SEINET10535965  Ranunculus canus Mary Susan Taylor 1980-4-1 Taylor 2426 Butte T22N R2E sc sec 25. In Foothill Savan nah, on bluffs above and S of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 183 Comment
  CHSC101333  Ranunculus hebecarpus Lowell Ahart 2009-4-22 15592 Butte Along the Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico. 381 Comment
  CHSC46846  Ranunculus muricatus Kirsten Tarp 1983-4-3 256 Butte S part of county at Bangor. In lawn in front of the Bangor fire station. 228 Comment
  SEINET10535983  Ranunculus occidentalis var. ultramontanus Mary Susan Taylor 1978-7-18 Taylor 1723 Butte On N side of Butte Creek, ca. 1/8 mi W of Road Island Junction, at junction of Butte Creek and Old Humboldt Road, ca. 1 mi W of Cherry Hill Campground; Yellow Pine Forest. 1524 Comment
  CHSC52693  Ranunculus orthorhynchus var. orthorhynchus Kirsten Tarp 1983-7-31 316 Butte S of Butte Creek House ca. 32 air miles ne of Chico; in meadow. 1828 Comment
  CHSC31855  Ranunculus pusillus L. Ahart 1980-5-10 2235 Butte In farmed field, ca. 2.5 mi n and 1/10 mi e of Honcut. Peter Ahart Ranch, Honcut. 50 Comment
  CAS-BOT-BC74264  Raphanus sativus A. A. Heller 1923-10-13 13828 a Butte Along the highway near Richvale. Comment
  SEINET13946194 Image available Rhamnus californica A. A. Heller, H. E. Brown 1902-1 5468 Butte Berry Canton, (Near Clear Creek) Comment
  CAS-BOT-BC59882  Rhamnus ilicifolia Lowell Ahart 1989-5-10 6211 Butte Near a dirt road, about 1/10 mi. nw. of the West Branch Bridge across Lake Oroville. 304 Comment
  UC600525  Rhamnus rubra H. F. Copeland 1930-7-26 1379 Butte Jonesville Comment
  UC80127  Rhamnus rubra Mrs. M. Austin Jun 1896 642 Butte n of Chico (Forest Ranch and mountains) Comment
  RSA4444  Rhamnus rubra subsp. obtusissima E. B. Copeland 1931-7-28 657 Butte Jonesville. 1650 Comment
  CHSC65548  Rhododendron occidentale L. P. Janeway 1995-6-28 4821 Butte Top of Watson Ridge at junction of Roads 21N25; about 1.5 mi west of Kenebeck Ridge. 1249 Comment
  UC455448  Rhododendron occidentale Miss Kate Conger 1907-1 Butte Brush Creek Comment
  CHSC59982  Ribes nevadense Sharol Lindenstein 1989-3-26 7 Butte Plumas Nat'l forest, Hwy 70, ca. 3.5 mi sw of Sugar Loaf Mt., 2 mi nw of Cresta Powerhouse. 701 Comment
  CHSC1663  Ribes roezlii J. Gulick 1929-3-10 Butte Paradise. 609 Comment
  UC600616  Ribes roezlii E. B. Copeland July, 1930 Butte Jonesville 1600 Comment
  CAS-BOT-BC198958  Ribes roezlii var. roezlii M. S. Taylor 1982-5-23 4513 Butte S side of Hwy 70, vicinity of Arch Rock Tunnel ca. 0.5 mi SW of Butte-Plumas county line. 487 Comment
  CAS-BOT-BC198960  Ribes roezlii var. roezlii Jim Riley 1923-3-23 s.n. Butte Forest above De Sabla Comment
  CHSC4250  Ribes roezlii var. roezlii J. E. Bowlin 1967-3-24 33 Butte 0.3 mi NW of Cresta Powerhouse, Hwy 70. Comment
  JEPS119556  Ribes roezlii var. roezlii Lowell Ahart 2012-2-22 17753 Butte On the south side of Ten Mile House Road, about 1/4 miles west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CAS-BOT-BC362956  Rigiopappus leptocladus A. A. Heller 1914-5-8 11372 Butte Plateau above Clear Creek on the Paradise road. Clear Creek-Paradise grade Comment
  CHSC87547  Robinia pseudoacacia R. D. Fischer 2004-3-5 70 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Found next to parking area at 10 Mile House Road leading into the park. 502 Comment
  CHSC99658  Robinia pseudoacacia H. Koeth; K. Schierenbeck 2007-2-27 Butte Upper Bidwell Park (Green Gate), Hwy 32. UTM 10 609663E 4406233N. 454 Comment
  RSA769677  Romulea rosea var. australis Lowell A. Ahart 2009-3-25 15519 Butte Open pasture field, Peter Ahart Ranch, about 1/2 mile north and 1 mile east of Honcut, about 12 miles south of Oroville. 34 Comment
  CAS-BOT-BC74469  Rorippa curvisiliqua H. F. Copeland 1920-7-11 59 Butte Scotch John Meadow. 1828 Comment
  UC1563271  Rorippa curvisiliqua Lowell Ahart 1990-10-21 6641 Butte about 1/2 mi w Gold Flat (below the high water line of Lake Oroville, about 1 mi n Nelson Bar Road); w of Gold Flat, Lake Oroville 213 Comment
  CAS-BOT-BC74456  Rorippa curvisiliqua Lowell Ahart 1979-5-20 s.n. Butte 2 miles south of Palerma. 35 Comment
  CHSC83025  Rorippa curvisiliqua var. occidentalis Lowell Ahart 2002-10-17 9988 Butte On the hills below the high water line of Lake Oroville, about 1 1/2 miles south of Highway 162 (Oroville Quincy Highway), about 3 miles (air) northeast of Oroville Dam. 227 Comment
  SEINET260316  Rorippa curvisiliqua var. occidentalis Lowell Ahart 1986-11-9 5451 Butte Ca 1/10 mi S of the clay burrow for Oroville Dam 1/4 mi ESW of Oroville 1/4 mi E of Larkin Rd 37 Comment
  CHSC113299  Rorippa curvisiliqua var. orientalis Lowell Ahart 2014-4-9 19345 Butte Bottom of a drying pond, about 100 yards west of the parking area, west end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC36685  Rorippa curvisiliqua var. orientalis R. E. Preston 1982-7-21 347 A Butte At roadside; ca. 1/4 mi se of Philbrook Reservoir. 1706 Comment
  JEPS120616  Rorippa curvisiliqua var. orientalis Lowell Ahart 2013-11-13 19230 Butte Below the high water line of Lake Oroville, along the sides of Sucker Creek, about 30 yards north of the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. Comment
  CHSC35750  Rorippa nasturtium-aquaticum R. E. Preston 1982-5-19 288 Butte In stream at edge of meadow; ca. 1/4 mi n of Fall River Campground. 1028 Comment
  CHSC46483  Rorippa nasturtium-aquaticum Lowell Ahart 1989-5-31 6332 Butte On the bottom of a stream, north of the end of Truex Road, near Lake Oroville, about 1/4 mile north-west of the West Branch Bridge across Lake Oroville. 304 Comment
  CHSC530  Rorippa nasturtium-aquaticum R. M. Staley 1952-7-5 Butte Butte Creek. 609 Comment
  JEPS108924  Rorippa palustris var. occidentalis Lowell Ahart 2005-12-11 12509 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs 30 Comment
  CAS-BOT-BC74801  Rorippa palustris var. palustris Lowell Ahart 1986-11-14 5458 Butte About 0.1 mile south of the clay burrow for Oroville Dam, 0.25 mile east of Larkin Road, about 6 miles SW of Oroville. 36 Comment
  JEPS120059  Rosa Lowell Ahart 2012-6-9 18181 Butte East of the South Rim Trail, at the old homestead, about 100 yards south of Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico, south part of Upper Bidwell Park. Comment
  CHSC1592  Rosa californica R. M. Staley 1952-7-2 Butte Honey Run. 182 Comment
  JEPS115856  Rosa californica Lowell Ahart 2009-8-3 16264 Butte Near drainage below dam, about 100 yards west of the table at the old homestead and southwest of Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of 239 Comment
  JEPS99061  Rosa californica Lowell Ahart 2002-6-7 9709 Butte On the north banks of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles (air) SE of Oroville. 36 Comment
  POM89739  Rosa californica C. C. Bruce 1897-05 1800 Butte Fourteen mile house Comment
  SEINET4856098  Rosa pisocarpa subsp. ahartii Unknown 2007-6-23 19074 Butte Black Bart Road 1.3 miles from lower junction with Forbestown Road, ca 10 air miles ESE of Oroville. 655 Comment
  UC1862497  Rosa pisocarpa subsp. ahartii Barbara Ertter with Lowell Ahart 2006-8-1 18750 a Butte Black Bart Road 1.3 mi from lower junction with Forbestown Road, ca 10 airmiles ESE of Oroville 655 Comment
  CHSC48872  Rubus parviflorus Vernon Oswald 1984-5-23 1206 Butte Calif. Hwy 70 at Heinz Creek, 0.5 mi n-e of Poe Power House. Near the creek. 463 Comment
  SEINET10937266  Rubus vitifolius Mary Susan Taylor 1976-4-4 Taylor 1061 Butte Yellow Pine Forest, ca. 2-5 mi W of junction of Ponderosa Way and Hwy 32, ca. 2-10 ft N and S of Ponderosa Way, ca. 23 mi NE of Chico; with Sanicula bipinnata, Calochortus monophyllus. 488 Comment
  CHSC102831  Rumex conglomeratus Lowell Ahart 2009-6-18 15912 Butte On the west side and bottom of the steep bank, about 10 yards west of the dredger piles along North Honcut Creek, about 2 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville. 59 Comment
  RSA755421  Rumex dentatus L. Ahart 2009-7-4 15998 Butte West side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Waterfowl Management Area, about 6 air miles southwest of Gridley. 21 Comment
  CHSC109612  Rumex pulcher Lowell Ahart 2012-5-14 18049 Butte Along the edges of the paved path, east side of the Deer Pen, between Tables 9 and 10, Lower Bidwell Park, Chico. 71 Comment
  JEPS115726  Rumex stenophyllus Lowell Ahart 2009-7-4 15996 Butte On the sides of the road, near parking lot 18, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  CHSC38298  Sagina apetala Vernon Oswald 1983-4-4 279 Butte Upper Bidwell Park, Chico, on the north rim ca. 500 ft e of the power lines. 249 Comment
  JEPS118328  Sagina apetala Lowell Ahart 2011-4-28 17331 Butte Along trail in the Disc Golf Area, about 130 yards north of the entrance to the Disc Golf Area, about 40 yards west of Highway 32, Upper Bidwell Park, about 5 miles (air) northeast of Chico 398 Comment
  JEPS113284  Sagina decumbens subsp. occidentalis Lowell Ahart 2007-4-16 13673 Butte On the south side of a small wash, about 100 yards east of North Honcut Creek, about 1 1/2 miles north and 2 3/4 miles east of Honcut, about 12 miles southeast of Oroville 63 Comment
  SEINET5337060  Sagina decumbens subsp. occidentalis B. Ertter, Jeffrey L. Strachan; L. Ahart 1980-5-7 3295 Butte Peter Ahart Ranch ca 2-1/2 miles NNE of Honcut between Oroville and Marysville. 30 Comment
  CHSC36073  Sagina procumbens R. A. Schlising 1982-5-29 4228 Butte Chico; State University campus on n side of Library. Comment
  JEPS88387  Sagittaria longiloba Vernon H. Oswald and Lowell Ahart 1996-7-22 8087 Butte on the e side of Tract 7.3, Sanctuary I in a roadside ditch s Refuge Headquarters (U.S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River); Sacramento River National Wildlife Refuge, Llano Seco Unit 32 Comment
  UCD150366  Sagittaria montevidensis subsp. calycina William Anderson 1964-8-15 s.n. Butte Richvale-Oroville Rd. Comment
  CAS-BOT-BC267091  Sagittaria sanfordii Lowell Ahart 1987-10-22 5920 Butte In shallow water in Madrone Lake, near the Oroville Quincy Highway 609 Comment
  UC935721  Sagittaria sanfordii Herbert L. Mason and Verne Grant 1946-8-8 13001 Butte Butte Sink; West Gridley road one mi w of Gridley - Pennington highway Comment
  UC2026859  Salix babylonica Lowell Ahart, John Dittes, Josephine Guardino 2012-4-6 17804 Butte On the north side of Big Chico Creek, Lost Park in Bidwell Park, City of Chico. Comment
  POM219139  Salix eastwoodiae H. F. Copeland 1931-6-11 1544 Butte Jonesville. Kirby Meadows. 1829 Comment
  CAS-BOT-BC107963  Salix geyeriana H. F. Copeland 1931-6-11 1546 Butte Kirby Meadows, Jonesville 1828 Comment
  JEPS119537  Salix gooddingii Lowell Ahart 2012-4-20 17893 Butte About 100 yards south of the intersection of South Rim Trail and and Ten Mile House Road, about 5/8 mile west of Highway 32, about 9 miles (air) northeast of Chico. Comment
  CHSC101146  Salix laevigata Lowell Ahart 2009-5-15 15687 Butte On the east side of Big Chico Creek, about 50 yards west Ten Mile House Road, Upper Bidwell Park, about 3/4 mile (air) west Highway 32, about 10 miles northeast of Chico. 203 Comment
  CDA38779  Salix lasiandra var. lasiandra L. Ahart, Linnea Hanson, Kaline Le Coq, Josephine Guardino 2012-4-27 17913 Butte On the north side of the path, near table 14, on the north side of Centennial Avenue, Lower Bidwell Park, Chico. Comment
  CAS-BOT-BC106984  Salix lasiolepis Lowell Ahart 1987-4-30 5492 Butte along North Honcut Creek, about 2 1/2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville 67 Comment
  CHSC108872  Salix lasiolepis Lowell Ahart 2012-2-22 17749 Butte Around the edges of the pond and on the east side of South Rim Trail, at the old homestead, about 5/8 miles west of Highway 32, about 9 miles (air) northeast of Chico. 259 Comment
  CAS-BOT-BC125061  Salix ligulifolia E. B. Copeland 1931-6-9 621 Butte Jonesville, near the head of North Willow Creek 1550 Comment
  CHSC94971  Salix melanopsis Lowell Ahart 2006-10-14 13507 Butte On the north side of North Honcut Creek, Peter Ahart Ranch, about 3/4 mile north and 2 1/2 miles east of Honcut, about 12 miles southeast of Oroville. 44 Comment
  UC478534  Salix scouleriana E. B. Copeland 1931-7-30 399 Butte Jonesville 1550 Comment
  CHSC6021  Sambucus mexicana M. MacArthur 1968-6-19 242 Butte NW end of bridge to PSA bld., Chico State College. 60 Comment
  CHSC77423  Sambucus mexicana Tim Stofer 1997-4-20 19 Butte This plant was located on the east side of the trail 1/4 mi. from the head of the South Rim Trail off South Park Dr. in upper Bidwell Park. 76 Comment
  UC426975  Sambucus racemosa var. microbotrys E. B. Copeland 1930-7-12 480 Butte above Jonesville (n brow of high ridge) 2100 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
  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
  CHSC42660  Sanicula bipinnata Vernon Oswald 1985-4-16 1721 Butte Upper Bidwell Park, Chico, on the slope bordering the s side of the Golf Course. 121 Comment
  CHSC87440  Sanicula bipinnatifida R. D. Fischer; Jenny Marr 2004-4-2 104 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected along Guardian Trail south of Pine Trail junction. 396 Comment
  UC726870  Sanicula bipinnatifida A. A. Heller 1918-5-5 13015 Butte Paradise Comment
  UCD72989  Sanicula bipinnatifida Ayzik Solomeshch 2003-4-9 s.n. Butte Wurlitzer Reserve, about 10 mi. north from Chico on Hwy 99, west side of the road. Comment
  SEINET10454570  Sanicula bipinnatifida Mary Susan Taylor 1976-3-30 Taylor 1038 Butte Ca. 15-50 ft E of Cherokee Rd, ca. 1 mi S of Cherokee, on N side of Table Mt; with Mimulus tricolor. 305 Comment
  SEINET12120679  Sanicula bipinnatifida M. S. Camp 1974-1 29 Butte N side of Table Mountain, 6 mi N of Oroville Comment
  CHSC115282  Sanicula bipinnatifida var. flava Lowell Ahart 2015-4-30 20118 Butte About 1/4 miles south of Forbestown Reservoir Road, about 2 1/2 miles (air) northeast of Forbestown. 890 Comment
  CHSC1981  Sanicula bipinnatifida var. flava P. Delaplane 1965-5-4 59 Butte At E end of Lake Concow on Concow Road. 1219 Comment
  CHSC24934  Sanicula bipinnatifida var. flava Brad R. Parker 1976-4-21 1 Butte Ca. 1.7 mi ne of Oroville and Glen Drive on the ne side of Glen Circle Drive, after passing 19 Glen Circle Drive. 114 Comment
  SD3414  Sanicula graveolens E. B. Copeland 1931-6-22 Butte Jones Creek, on ridge west of creek. 2100 Comment
  UC478491  Sanicula graveolens E. B. Copeland 1931-6-22 Butte W of Jones Creek; Jonesville 2100 Comment
  UC398939  Sanicula tuberosa E. B. Copeland 1929-7-20 389 Butte Jonesville 1550 Comment
  SEINET10449183  Sarcodes sanguinea Mary Susan Taylor 1981-5-29 Taylor 3818 Butte T23N R7E nw/nw sec 29, Bucks Lake quad. Along Buckhorn Creek on S side, about midslope, ca. 200 ft W of 23N18.5, ca. 1 mi SW of Grizzly Mt, ca. 13 air mi NE of Pulga. Dense, shaded, moist Yellow Pine Forest; 5200 ft. 1585 Comment
  CAS-BOT-BC436865  Saxifraga Lowell Ahart 1975-3-18 s.n. Butte Peter Ahart Ranch, Honcut 45 Comment
  UC1609159  Saxifraga californica Vernon H. Oswald and Lowell Ahart 1993-3-24 5237 Butte 2 mi n of Pentz Road (e side of Dry Creek Canyon, n of the historical site of Pentz, on e side of secondary drainage entering Dry Creek); Dry Creek Canyon 243 Comment
  SEINET10838427  Saxifraga fallax Mary Susan Taylor 1979-5-4 Taylor 1989 Butte Along Millsap Bar Road, 4 mi NE of its junction with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest. 1006 Comment
  CHSC114939  Scandix pecten-veneris Lowell Ahart 2015-4-13 20040 Butte Gold mined area on the south side of the road on the boat ramp, Vinton Gulch, about 10 miles (air) north of Oroville. Foothill Woodland. 307 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
  CHSC3979  Scandix pecten-veneris E. P. Parreno 1967-4-10 Butte Ca. 400 yards upstream from Covered Bridge. Comment
  SEINET12121860  Scandix pecten-veneris Unknown 1985-1 4875 Butte along Table Mountain Boulevard, near Cambell Overflow, a little S of intersection of Hwy 70 & 149 100 Comment
  UCD128062  Scandix pecten-veneris B. Castro 1982-4-8 10 Butte south side of Hwy 70, ca. 5 miles from junction of Hwys 70 and 149, ca. 9 miles northeast of Oroville. 146 Comment
  RSA88186  Schedonorus pratensis J. T. Howell 1951-6-26 27520 Butte Big Bend Mt. 610 Comment
  UCD50106  Schoenoplectus californicus A. A. Beetle 1941-6-27 2739 Butte Butte County, 4 miles north of Ruchvale, Rte 99E, irrigation ditch along roadside. Comment
  CAS-BOT-BC111653  Schoenoplectus mucronatus Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-7-29 1086 Butte Weedy rice field, ca. 5 miles west of Richland. 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
  CDA39131  Scirpus fluviatilis Keith Rathbone 1953-6-19 s.n. Butte Richvale. 0 Comment
  JEPS110301  Scirpus microcarpus Lowell Ahart 2006-9-13 13314 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  SEINET11268263  Scirpus setaceus Lowell Ahart 2000-7-11 8563 Butte About 200 yards southeast of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 6 1/2 miles (air) northeast of Feather Falls.; 0 1280 Comment
  CHSC38147  Scribneria bolanderi J. D. Jokerst 1983-5-12 1758 Butte North Table Mountain. Comment
  CHSC6076  Scribneria bolanderi B. Wilson 1968-4-19 177 Butte 2 mi s of Cherokee on Table Mountain. Comment
  JEPS104097  Scribneria bolanderi Lowell Ahart 2003-4-10 10084 Butte Along a small drainage, sw of the ''sunken area,'' on the top of South Table Mountain, ca 2 1/2 mi (air) n of Oroville. 310 Comment
  CHSC27791  Scrophularia californica subsp. floribunda Steven R. Johnson 1978-4-25 15 Butte Ca. 22 km n of Chico, ca. 4.8 km s of Cohasset. 590 Comment
  SFV3445  Scrophularia californica subsp. floribunda M. L. Vincent 1962-4-17 199 Butte Sierra Nevada At Pentz and Nelson Bar Roads. 5 miles south of Paradise. 330 Comment
  CHSC43842  Scutellaria californica B. Castro 1987-5-9 86 Butte Just e of Cohasset Rd, 9.5 mi by road from Chico. 539 Comment
  JEPS108982  Scutellaria californica Lowell Ahart 2006-6-9 12658 Butte On the north side of Bardees Bar Road, north of the small stream, on the east side of the large stream, about 1/8 mile northwest of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 3/4 miles (air) southwest of Pulga 385 Comment
  SEINET10836980  Scutellaria californica Mary Susan Taylor 1978-7-19 Taylor 1729 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  RSA0115081  Scutellaria siphocampyloides Lowell A. Ahart 2013-5-27 18708 Butte About 150 yards east of the intersection of Forbestown Road and Black Bart Road, about 3.25 miles (air) southwest of Forbestown. 764 Comment
  RSA3813  Scutellaria siphocampyloides A. A. Heller 1927-5-30 14397 Butte Chico Creek, east of Chico. Comment
  CHSC24648  Scutellaria tuberosa S. Deaton 1976-4-14 16 Butte Small population 1 7/8 mi n of Feather Falls parking lot, n side of Falls trail. 853 Comment
  CAS-BOT-BC415020  Sedella pumila A. A. Heller; H. E. Brown 1902-5-7 5486 Butte Berry Canyon (near Clear Creek) Comment
  CHSC87435  Sedella pumila R. D. Fischer 2004-3-28 98 Butte Sierra Nevada foothills within upper Bidwell Park in Chico on the east-side addition along Hwy. 32. Collected along Guardian Trail. Located approx. 0.5 mile south of Pine Trail junction near drainage. 396 Comment
  CHSC90098  Sedella pumila Charlie Crannell 1991-4-22 11 Butte Along side of Hwy 32, 4.1 mi northeast of Chico. 243 Comment
  CHSC90602  Sedella pumila Andrew D. Lane 1984-4-19 4 Butte Salmon Hole, ca. 6.7 km ne of jct of Hwys 99 and 32, ca. 50 m n of Big Chico Creek. 115 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
  HSC92528  Sedella pumila Jeanne McFarland, Kathie Meyer, Anne Mullenniex 1995-4-9 30 Butte On N Table Mtn., S of Paradise on Cherokee Rd., S end of Table Mtn. proper 381 Comment
  UCD101999  Sedella pumila Sue Wagener 1955-4-24 46 Butte Elliot Spring Memorial on the Durham-Paradise Road. Comment
  JEPS26934  Sedum albomarginatum P. C. Hutchison 1961-6-9 2101 Butte w side Feather River Canyon (at Pulga Bridge, on steep serpentine cliffs); w side Feather River Canyon at Pulga Bridge Comment
  RSA0081477  Sedum spathulifolium J. R. Shevock 1972-5-19 1784 Butte N Fork Feather River Canyon. Hwy 70. 625 Comment
  CAS-BOT-BC62125  Selaginella hansenii Lewis S. Rose 1945-5-12 45039 Butte Richardson Springs 304 Comment
  CHSC28876  Selaginella hansenii M. S. Taylor 1980-3-1 2346 Butte Overlooking Hamlin Canyon, ca. 1/4 mi se of Elliot Spring House on Neal Rd, ca. 2 mi sw of Paradise. 301 Comment
  CHSC42457  Senecio aronicoides Lowell Ahart 1987-5-22 5670 Butte About 1/8 mile south-east of Lumpkin Ridge Road, about 1 1/2 miles east of Camp 18, about 8 miles north-east of Feather Falls. 1280 Comment
  CHSC86438  Senecio eurycephalus var. lewisrosei Jenny Marr 1994-6-13 82 Butte Located in Northern Sierra Nevada, north of the town of Magalia, on serpentine outcrop belonging to LNF. Site approx. 0.3 miles north of Magalia Reservoir. 759 Comment
  CDA38817  Senecio sylvaticus L. Ahart 2012-4-9 17832 Butte On the high east bank of Big Chico Creek, west of the rock corral, east of the cement dam in Big Chico Creek, west of the South Rim Trail, south part of Upper Bidwell Park, about 2 miles (air) northeast of Chico. Comment
  CDA38819  Senecio sylvaticus L. Ahart 2012-4-9 17843 Butte On the basalt rim, high east edge of Big Chico Creek, about 20 yards west of the South Rim Trail, south part of Upper Bidwell Park, about 2 1/2 miles (air) northeast of Chico. Comment
  CHSC116987  Senecio sylvaticus Lowell Ahart 2016-6-4 20939 Butte On the east side of Ponderosa Way, about 1 mile (air) northwest of Sunset Hill, about 2 1/8 miles (air) northwest of Forbestown. 732 Comment
  JEPS94732  Senecio sylvaticus Lowell Ahart 1998-6-3 7966 Butte about 7 air mi n of Oroville (about 1/4 mi n of the cow chute along Cherokee Road, North Table Mountain); North Table Mountain, Cherokee Road 403 Comment
  CHSC96618  Senecio vulgaris Lowell Ahart 2007-3-7 13588 Butte Around buildings, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 31 Comment
  CAS-BOT-BC364549  Senecio vulgaris Lowell Ahart 1969-3-27 s.n. Butte Peter Ahart Ranch, Honcut 150 Comment
  JEPS98268  Setaria gracilis Lowell Ahart 2000-5-17 8365 Butte 7 1/2 air miles W of Oroville (S margin of Thermalito Afterbay, N side of the poor dirt road, about 1/10 mi N of the Richvale Hwy, 1/2 mi E of Hwy 99) 42 Comment
  CHSC116322  Setaria parviflora Lowell Ahart 2015-10-16 20558 Butte On the west side of the Feather River, about half way of and east of One Mile Pond, about 6 miles (air) east of Biggs. 26 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
  JEPS97334  Setaria parviflora Lowell Ahart 1995-8-19 7615 Butte 12 mi S of Oroville (Peter Ahart Ranch; E side of North Honcut Creek; 1 mi N and 2 3/4 mi E of Honcut) 36 Comment
  CHSC23130  Setaria pumila M. S. Taylor 1975-10-3 929 Butte At bridge over Little Chico Creek on River Rd, ca. 10 mi w of Chico. 36 Comment
  CHSC84151  Sherardia arvensis Lowell Ahart 2003-6-25 10315 Butte In lawn, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. 33 Comment
  CHSC3519  Sidalcea calycosa John Francis 1966-4-16 114 Butte 3.7 miles E. of covered bridge (Honey Run). Comment
  CHSC42239  Sidalcea calycosa Steven Webster 1986-4-2 4 Butte Large poulation, ca. 1 mi e of Chico. 76 Comment
  CHSC48609  Sidalcea calycosa Vernon H. Oswald 1984-4-1 1113 Butte Humboldt Rd, about mid-way between El Monte and Bruce roads, Chico. 79 Comment
  UC725427  Sidalcea calycosa A. A. Heller 1942-5-27 16479 Butte Clark Road , Clark Road (Clear Creek Schoolhouse) Comment
  POM84399  Sidalcea calycosa subsp. calycosa C. C. Bruce 1897-03 1923 Butte Chico. Comment
  SEINET11991651  Sidalcea hartwegii Unknown 1976-1 6 Butte 10 yds S of Sky Way Rd, 6 mi E from junction of Hwy 99 & Sky Way Rd 366 Comment
  CDA36507  Sidalcea hirsuta Butte County Ag. Comm. 1961-5-1 Butte Near Nelson. 0 Comment
  CHSC50663  Silene antirrhina Lowell Ahart 1990-4-28 6469 Butte In the borrow area, about 1/4 mile south of the Feather River, about 4/10 mile west of Pacific Heights Road, about 4 1/2 miles south-west of Oroville. 30 Comment
  CHSC37434  Silene bernardina R. A. Schlising 1982-8-1 4362 Butte E. of Inskip and near Jones Meadow. 1734 Comment
  SEINET10537657  Silene californica Mary Susan Taylor 1981-4-5 Taylor 3495 Butte T21N R4E ne sec 14; Berry Creek quad. At end of Dark Canyon Rd at turnout near restroom, ca. 3.5 mi s of Big Bend Rds, ca. 5 air mi s of Jarbo Gap on Hwy 70, n of Oroville. Foothill Woodland; 1000 ft. 305 Comment
  JEPS110241  Silene gallica Lowell Ahart 2006-5-8 12592 Butte About 300 yards south of the three Gray Pines on the rim of Coal Canyon, about 2 miles northwest of the parking area, cow chute, and Cherokee Road, North Table Mountain, about 7 miles (air) north of Oroville 336 Comment
  CHSC214  Silene laciniata subsp. californica R. M. Staley 1952-7-14 Butte Butte Creek. Comment
  CAS-BOT-BC389288  Silene lemmonii A. A. Heller 1914-6-22 11488 Butte About Chico Meadows 1219 Comment
  CHSC32665  Silene lemmonii M. S. Taylor 1981-3-24 3436 Butte S side of Hwy 70, ca. 1/2 mi w of Cresta Powerhouse, ca. 1.5 mi e of Pulga. 487 Comment
  CHSC48268  Silene lemmonii Vernon H. Oswald 1983-8-17 982 Butte Humboldt Summit on Humboldt Rd, ca. 3.3 mi ne of Jonesville, at the junction of Butte, Tehama, and Plumas counties. 1999 Comment
  CHSC3517  Sisyrinchium bellum John Francis 1966-4-16 108 Butte 3.7 miles E. of covered bridge (Honey Run). Comment
  JEPS121916  Sisyrinchium bellum Lowell Ahart 2014-7-10 19619 Butte About 100 yards south of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. Comment
  SBBG119799  Sisyrinchium bellum L. Ahart 2006-7-16 12998 Butte Willow Crk, ca. 0.75 air mi NW of Jonesville, ca. 5 air mi NE of Butte Meadows 1515 Comment
  SEINET12051032  Sisyrinchium bellum Unknown 1987-1 1072 Butte Stirling City Quad, 7 km N of Inskip on Bull Hill Rd Comment
  SEINET10469849  Smilax californica Mary Susan Taylor 1975-6-25 Taylor 805 Butte Richardson Springs on Mud Creek, ca. 3 mi NE of Cohasset Hwy, ca. 6 mi N of Chico, ca. 1 mi NE of the Hotel at the Springs. With Gary Jones. 244 Comment
  JEPS110296  Solanum americanum Lowell Ahart 2006-9-11 13296 Butte South edge of the North Fork of the Feather River, north side of Highway 70, about 1/8 mile west of the Poe Dam, about 3/4 mile northeast of Pulga, about 21 miles (air) northeast of Oroville 431 Comment
  CHSC1933  Solanum elaeagnifolium V. Holt 1931-6-1 Butte Paradise. 548 Comment
  CHSC42429  Solanum parishii Lowell Ahart 1987-5-9 5599 Butte Along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga. 365 Comment
  CAS-BOT-BC157538  Solanum umbelliferum L. Ahart 1987-5-9 5599 Butte Along Pulga Road, about 1/2 mile south-west of Bardees Bar along the North Fork of the Feather River, about 3 miles south-west of Pulga 365 Comment
  CHSC36965  Solidago elongata M. S. Taylor 1982-8-16 4988 Butte S end of Stirling City, along both sides of the Skyway. 1036 Comment
  CHSC41890  Solidago elongata Lowell Ahart 1986-8-15 5385 Butte North of the dirt road, about 1/2 mile south-west of Bald Mountain, about 4 1/2 miles north-east of Stirling City. 1615 Comment
  CHSC26703  Solidago velutina subsp. californica M. S. Taylor; M. Hayes, R. Schlising 1977-8-17 1455 Butte On both sides of Hwy 32, ca. 6 mi s of Forest Ranch. 609 Comment
  CHSC31610  Solidago velutina subsp. californica L. Ahart 1978-8-30 1800 Butte On banks of North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  UC829904  Solidago velutina subsp. californica A. A. Heller 1916-9-23 12662 Butte near Forest Ranch; Sierra <Nevada> foothills Comment
  CDA42873  Sonchus oleraceus L. Ahart 2012-5-14 18061 Butte Planted area between sidewalk and Vallombrosa Avenue, west of Manzanita Avenue, just west of the bridge across Big Chico Creek, Lower Bidwell Park, Chico. Comment
  CHSC9344  Sorghum halepense B. Anthony 1968-5-8 513 Butte 2 miles E. of Hamilton City, Hwy. 32. Comment
  SEINET10933086  Sparganium emersum var. multipedunculatum Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4195 A Butte T25 N R5E SW 1/4 sec 29. Pulga NW quad. Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Montane Meadow. 6000 ft. 1829 Comment
  CHSC30779  Spartium junceum M. S. Taylor; L. Ahart, R. S. Schlising 1980-4-3 2751 Butte Kunkle Reservoir, e side, ca. 1/4 mi e of Pentz-Magalia Hwy, ca. 2 mi s of Paradise. 441 Comment
  CHSC84632  Spartium junceum Matt Quinn 2001-4-29 49 Butte Along creeks in the foothills of Butte County. Collected on gravel bar on Butte Creek approximately 1/4 mile downstream of Steel Bridge on Centerville Road. 158 Comment
  CHSC98959  Spergula arvensis subsp. arvensis Lowell Ahart 2008-5-12 14735 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 40 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile west of the Ponderosa Dam. 258 Comment
  CHSC225  Spergularia bocconi V. Holt 1935-4-24 Butte Roadside near Plant Gardens. 60 Comment
  CHSC35001  Spergularia rubra R. A. Schlising 1981-6-11 4073 Butte N part of county, above Butte Meadows and SW of Cherry Hill Campground. Along Butte Creek. Comment
  CHSC42675  Sphenosciadium capitellatum Vernon Oswald 1985-8-4 1920 Butte Ca. 0.2 mi W of Humboldt Rd. at the bridge over Butte Creek S of Cherry Hill. 1414 Comment
  UC426923  Sphenosciadium capitellatum E. B. Copeland 1930-8-4 430 Butte Jonesville 1500 Comment
  JEPS110088  Spiraea douglasii Lowell Ahart 2006-8-15 13184 Butte East part of a large meadow with bogs, 15 yards west of Willow Creek, about 100 yards southeast of the cabin, about 3/4 mile (air) northwest of Jonesville, about 5 miles (air) northeast of Butte Meadows 1569 Comment
  NY43529  Spiraea douglasii S. Bianco 1995-9-17 1028 Butte Near Camp Creek Rd, along Dogwood Creek 1098 Comment
  CHSC92454  Sporobolus indicus Lowell Ahart 2005-10-22 12462 Butte Irrigated pasture, Daley Ranch, about 1 mile northeast of Honcut, about 13 miles south of Oroville. 34 Comment
  SEINET13948162 Image available Stachys A. A. Heller 1915-1 11907 Butte Near Cohasset, near the upper limit of the digger pine in the Sierra foothills Comment
  CHSC42980  Stachys ajugoides var. rigida L. P. Janeway 1987-6-26 2315 Butte SW end of Logue Meadows. 1325 Comment
  CHSC84885  Stachys ajugoides var. rigida R. D. Fischer 2003-6-22 2 Butte Chico Meadows near Butte Meadows. South side of rd. 26N09 as it passes through northern end of mdw. Near fence line of Boy Scout Camp, Camp Lassen. 1280 Comment
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Jun 22 2007
  CHSC52076  Stachys pycnantha B. Castro 1988-6-5 261 Butte Upper Little Chico Ck Cyn. 243 Comment
  CHSC60609  Stachys pycnantha L. P. Janeway 1992-6-13 4235 Butte Along Piute Drive, ca 1/4 mi east of Dark Canyon Road and ca 1/2 mi south of Parkhill and Big Bend Road. 594 Comment
  UC1563286  Stachys pycnantha Lowell Ahart 1990-10-3 6615 Butte East Fork of Canyon Creek, below the high water line of Lake Oroville, about 1/4 mi northeast of the Canyon Creek Bridge across Lake Oroville. 259 Comment
  SEINET10537441  Stellaria Mary Susan Taylor, Lowell Ahart 1981-8-16 Taylor 4198 Butte T25 N R5E SW 1/4 sec 29. Pulga NW quad. Jones Meadow, ca. 3 mi S of Philbrook Reservoir, ca. 6 mi NE of Stirling City. Montane Meadow. 6000 ft. 1829 Comment
  UC1594589  Stellaria crispa Lowell Ahart 1992-6-26 6782 Butte about 0.5 mi nw Merrimac (on the e side of Rogers Cow Camp) 1219 Comment
  CHSC46556  Stellaria longipes var. longipes Vernon H. Oswald 1989-7-15 3858 Butte Meadow at Butte Creek House, ca. 3.3 mi (air) se of Jonesville. Along a drainage on the sw corner of the meadow. 1767 Comment
  CHSC112349  Stellaria media L. P. Janeway 2014-4-9 11221 Butte Northern High Sierra Nevada. Plumas National Forest; along Road 22N12Xwhere it crosses Peavine Creek just below the confluence of Coon Creek; French Creek Basin. 762 Comment
  CHSC39071  Stellaria media R. A. Schlising 1983-3-20 4399 Butte Richvale Vernal Pools, 0.25 mile south of junction with Highway 162 to Oroville, along Highway 99 and across from Thermalito Afterbay. Near fences. Comment
  CAS-BOT-BC395118  Stellaria nitens Lowell Ahart 1983-3-28 3907 Butte about 1/2 mile SW of the Forbestown Res., along the road where tere is a serpentine slide area, about 4 miles NE of Forbestown 450 Comment
  UC478522  Stellaria obtusa E. B. Copeland 1931-7-19 636 Butte Butte Creek Jonesville (Jonesville) 1500 Comment
  CHSC108987  Stellaria pallida Lowell Ahart 2012-4-30 17943 Butte On large rocks, on the north side of Bloody Pin Trail, west of Guardian Trail, about 1/2 mile west of Highway 32, about 7 1/2 miles northeast of Chico, south part of Upper Bidwell Park. 317 Comment
  CHSC70721  Stellaria pallida Vernon Oswald 1998-3-11 8887 Butte Northern Sacramento Valley. Wurlitzer Unit, Vina Plains Preserve. Along the north fence line just east of gate on Haille Rd. 57 Comment
  CHSC38392  Stephanomeria exigua subsp. macrocarpa Vernon Oswald 1983-7-3 801 Butte Upper Bidwell Park, Chico, on the north rim ca. 1.2 mi e of the power lines. 280 Comment
  CHSC46971  Stephanomeria exigua subsp. macrocarpa Lowell Ahart 1980-7-20 2470 Butte Along the edge of the abandoned paved road on the north side of the Suspension Bridge across Lake Oroville, north of Oroville. 304 Comment
  CHSC62532  Stephanomeria lactucina B. Castro; R. A. Schlising, L. P. Janeway, P. Broyles 1987-7-19 151 Butte Coon Hollow, 1.0 mi SE of the Humbug Summit Rd. 1676 Comment
  JEPS87514  Stephanomeria lactucina Lowell Ahart 1993-7-22 7071 Butte w side of dirt road about 1/4 mi nw Camp 18 (about 5 air mi ne of Feather Falls) 1219 Comment
  CHSC112780  Stipa lemmonii var. lemmonii Lowell Ahart 2013-5-27 18714 Butte On the east side of Black Bart Road, about 3/4 mile (by road) southwest from the intersection of Forbestown Road and Black Bart Road, about 3 1/4 miles (air) southwest of Forbestown. 731 Comment
  SEINET8078260  Stipa lemmonii var. lemmonii R. McKee 1918-5-12 s.n. Butte Magalia. Comment
  SEINET11991589  Streptanthus campestris Unknown 1983-1 4434 Butte ca 2.5 mi S of Stirling City 1100 Comment
  CAS-BOT-BC87030  Streptanthus drepanoides R. E. Preston 1982-4-22 254 Butte Ca. 0.6 mile ESE of Kunkle Reservoir, on west Branch Feather River arm of Lake Oroville, ca. 4.5 mile SE of Paradise. 280 Comment
  CAS-BOT-BC87441  Streptanthus polygaloides Clarence R. Quick 1964-7-9 64 -54 Butte Sierra Nevada. North of Jarbo Gap. Comment
  CHSC33177  Streptanthus polygaloides R. E. Preston; L. E. Preston 1981-5-25 70 Butte Ca. 320 m n of the jct of the Skyway and Coutelenc Rd., Magalia. 700 Comment
  CHSC36692  Streptanthus tortuosus R. E. Preston 1982-5-18 284 Butte On s side of Forbestown reservoir, ca. 4 mi ne of Forbestown. 579 Comment
  RSA636061  Streptanthus tortuosus Michael A. Vincent, Ethan H. Freid, Don Banks 1998-4-5 8101 Butte Table Mountain. Portion south of Beatson Hollow. Comment
  SEINET10448521  Streptanthus tortuosus Mary Susan Taylor 1980-5-27 Taylor 2700 Butte T21N R6E sc sec 30. Big Bend quad. On Big Bald Rock, ca. 3 mi E of Lake Madrone; Yellow Pine Forest, large granite dome 998 Comment
  CHSC103935  Streptanthus tortuosus var. suffrutescens Lowell Ahart 2010-5-16 16695 Butte Basalt cliffs, about 1/2 mile south of the parking area, North Table Mountain, about 4 1/2 miles (air) northeast of Oroville. 364 Comment
  CHSC61652  Streptopus amplexifolius var. americanus Lowell Ahart 1993-9-13 7232 Butte On the banks of Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  UCD138355  Stuckenia pectinata Herbert L. Mason; Verne Grant 1946-8-8 13000 Butte Reclamation Ditch 833 on West Gridley Road near Pennington Road. Comment
  CHSC37654  Styrax officinalis var. redivivus T. B. Devine 1981-8-25 757 Butte Beside Hwy 70 near Bear Ranch Creek, along N fork of Feather River near Cresta. 426 Comment
  CHSC52375  Styrax officinalis var. redivivus L. P. Janeway 1989-5-17 3255 Butte Along rd to Forbestown Diversion Dam 2.5 mi from Forbestown Rd. Single small shrub at top of cutbank. 845 Comment
  RSA126018  Styrax redivivus E. K. Balls 1957-5-22 22509 Butte Pulga, US Hwy 40 alt., Oroville to Quincy. 488 Comment
  JEPS123968  Symphoricarpos mollis Lowell Ahart 2015-7-4 20270 Butte About 3/4 mile west of the intersection of Lumpkin Ridge Road, road to Cascade or Fall River and County Road, about 7 (air) miles northeast of Feather Falls. Comment
  RSA428888  Symphoricarpos mollis H. F. Copeland 1928-8-14 97 Butte Jonesville, near Jones Creek. 1524 Comment
  CHSC109791  Symphyotrichum bracteolatum Lowell Ahart 2012-10-20 18492 Butte About 50 yards west of Table 4, west of Cedar Grove, Lower Bidwell Park, Chico. 68 Comment
  CAS-BOT-BC97694  Symphyotrichum chilense Lowell Ahart 1986-11-9 5433 Butte along the edge of the Oroville Quincy Highway, near the Berry Creek School 518 Comment
  CHSC116339  Symphyotrichum chilense Lowell Ahart 2015-11-18 20657 Butte On the west side of the Feather River, about 1/2 mile south of Palm Avenue, about 1 1/2 miles southeast of the intersection of Palm Avenue and Larkin Road, about 5 miles (air) northeast of Gridley. 26 Comment
  CHSC69670  Symphyotrichum spathulatum var. spathulatum Vernon H. Oswald 1987-7-16 3122 Butte West Branch of the Feather River upstream of where it crosses the road to Jones Meadow, ca. 1 mi (air) NE of Inskip. 1341 Comment
  CAS-BOT-BC98372  Symphyotrichum subulatum var. parviflorum A. A. Heller 1923-10-13 13828 Butte About the rice fields near Richvale Comment
  UCD136695  Symphyotrichum subulatum var. parviflorum Herbert L. Mason; Verne Grant 1946-9-4 13102 Butte Colusa Gun Club. Butte Sink. Comment
  CAS-BOT-BC221935  Taeniatherum caput-medusae John Thomas Howell 1967-6-22 42628 Butte Magalia 701 Comment
  SEINET11688675  Taeniatherum caput-medusae T. B. Devine 1980-1 608 Butte beside Horseshoe Lake in Bidwell Park, Chico Comment
  CHSC46812  Tanacetum parthenium R. A. Schlising; P. Broyles 1988-7-3 4567 Butte SE of Stirling City, past 'Five Corners' at small streamside and roadways in logging slash. Comment
  UCR7828  Taxus brevifolia Wm. Horn Jr. 1964-6-24 640624- 01 Butte 9 mi east of De Sabla 1159 Comment
  CHSC42042  Tellima grandiflora Lowell Ahart 1986-5-20 5278 Butte Near the edge of the road that goes to the Forbestown Reservoir, about 1mile south-west of the Forbestown Reservoir, about 3 1/2 miles north-east of Forbestown. 609 Comment
  RSA32934  Tellima grandiflora A. A. Heller 1938-5-28 15127 Butte Along the Feather River Hwy in granite near Pulga. 421 Comment
  SEINET10937208  Tellima grandiflora Mary Susan Taylor, Vernon H. Oswald 1985-5-30 Taylor 5510 Butte Trees Road between Hwy 70 and Coyote Gap, ca. 25 air mi NE of Oroville. Yellow Pine Forest. Comment
  CHSC45802  Thalictrum fendleri Kirsten Tarp 1983-7-28 311 Butte N part of county at Chico Meadows. 1295 Comment
  SEINET10535993  Thalictrum fendleri Mary Susan Taylor 1978-7-19 Taylor 1738 Butte Cherry Hill Campground, on S side of Old Humboldt Road, ca. 2 mi SW of Jonesville. 1524 Comment
  CAS-BOT-BC88202  Thysanocarpus curvipes A. A. Heller 1915-4-20 11855 Butte Chico-Centers road 3 miles from Chico. Comment
  CAS-BOT-BC88216  Thysanocarpus curvipes Lowell Ahart 1979-4-3 s.n. Butte Peter Ahart Ranch. Honcut. 50 Comment
  CHSC90251  Thysanocarpus curvipes Eric M. Haney 1989-4-23 19 Butte Found on e side of Hwy 32, ca. 7.5 km s of Forest Ranch. Ridge top. Comment
  UC857556  Thysanocarpus curvipes A. A. Heller 1915-5-25 11899 Butte Mt. Ida ranch 10 mi e Oroville; Sierra foothills 457 Comment
  CHSC35747  Thysanocarpus curvipes var. elegans R. E. Preston 1982-4-29 269 Butte At side of Hwy 70, ca. 0.2 mi s of Butte/Plumas Co. line. 487 Comment
  UC195475  Tonella tenella A. A. Heller 1914-3-12 11197 Butte e of Chico (in canyon of Big Chico Creek) 68 Comment
  CHSC21056  Torilis arvensis subsp. arvensis M. S. Taylor 1975-6-30 818 Butte Ca. 1/2 mi w of Cohasset Hwy, ca. 400 yds n of Greenwood Store, Cohasset. 853 Comment
  CHSC42682  Torilis arvensis subsp. arvensis Vernon Oswald 1985-6-24 1863 Butte Doe Mill Rd. 0.4 mi w of Butte Creek. 682 Comment
  SEINET10454777  Torilis heterophylla Lowell Ahart, Peter Ahart 1983-6-26 Ahart 4111 Butte T21N R5E se/se sec 32. Ca. 1/8 mi e of jct of Oroville-Quincy Hwy & Ponderosa Way (Big Ridge Rd), ca. 15 mi ne of Oroville. Foothill Woodland. 500 Comment
  CHSC82414  Torilis nodosa Lowell Ahart 2002-5-7 9608 Butte High banks of a pond, at the beginning of a southeast branch of Schirmer Ravine, about 50 yards east of the pond on the east side of Cherokee Road, North Table Mountain, about 4 miles (air) north of Oroville. 228 Comment
  SEINET10905239  Torreya californica Mary Susan Taylor 1981-4-28 Taylor 3568 Butte T22N R5E nw/ne sec 27, Berry Creek quad. Ca. 1/10 mi N of Rd 23N28.2, ca. 500 ft E of Chino Creek, ca. 4 air mi e of Jarbo Gap, ca. 23 air mi NW of Oroville. Yellow Pine Forest; 2800 ft. 853 Comment
  CHSC61656  Torreyochloa pallida var. pauciflora Lowell Ahart 1993-9-13 7234 Butte In Bolt Creek, about 1 mile south-east of Butte Meadows. 1325 Comment
  JEPS106345  Torreyochloa pallida var. pauciflora Lowell Ahart 2004-8-2 11329 Butte In small stream, small bog in large meadow, ca. 200 yd E of Keyser Creek, on N side of the dirt County Rd, ca. 3/4 mi (air) NE of Oak Point, ca. 1/2 mi (air) W of Big Kimshew Creek, ca. 1 3/4 mi SE of Bald Mountain 1452 Comment
  UCD93192  Torreyochloa pallida var. pauciflora August L. Hormay 1929-6-28 s.n. Butte Chico Meadows. Comment
  CAS-BOT-BC172927  Toxicodendron diversilobum A. A. Heller 1914-3-19 11211 Butte [Canon] Canyon of Big Chico Creek 76 Comment
  CHSC36832  Toxicodendron diversilobum Neal Schaeffer 1982-4-19 4 Butte Hwy 32, 3km n of Humboldt Rd/Hwy 32 junction. 425 Comment
  RSA28826  Toxicodendron diversilobum A. A. Heller 1916-4-13 12321 Butte Stilson Canyon east of Chico Comment
  CHSC2325  Toxicoscordion fremontii R. Carter 1965-2-13 145 Butte Found 0.6 mi. from Grubbs Rd. on Reservoir Rd. on s side of road. 121 Comment
  CHSC110257  Toxicoscordion paniculatum L. P. Janeway 2012-6-2 10836 Butte Northern High Sierra Nevada. Plumas National Forest; eastern slope of Bloomer Hill, 1.0 air km east of the top. 701 Comment
  CHSC2327  Toxicoscordion venenosum var. venenosum D. Smith 1935-5-24 Butte Honey Run. 243 Comment
  SEINET10454896  Trachelospermum jasminoides Mary Susan Taylor 1975-6-22 Taylor 789 Butte California State University, Chico, campus. 61 Comment
  CHSC43029  Trautvetteria caroliniensis var. occidentalis L. P. Janeway 1987-6-20 2265 Butte Along Fall River ca 2 mi straight line from Camp Eighteen. 1173 Comment
  CHSC52081  Trichostema lanceolatum B. Castro 1987-10-3 232 Butte E side Cherokee Rd, nr old horse pastures within Foothill Woodland just off of N Table Mtn. 213 Comment
  CHSC812  Trichostema lanceolatum V. Holt; M. Underhill 1952-7-21 Butte Foothills near Chico. 60 Comment
  RSA460854  Trientalis latifolia Michael A. Vincent 1962-4-18 208 Butte 3 miles E of Countolenc Road at Whiskey Flats near Feather River Comment
  SEINET10449631  Trientalis latifolia Mary Susan Taylor 1979-5-4 Taylor 1984 Butte T21N R6E sec 10. Millsap Bar Campground, ca. 9 mi NE of junction of Millsap Bar Road with Brush Creek Road, ca. 26 mi NE of Oroville; Yellow Pine Forest with limestone outcrops. 1006 Comment
  CHSC115006  Trifolium Lowell Ahart 2015-3-14 19951 Butte South side of Beatson Hollow, south of where the small stream flows into the stream on the bottom of Beatson Hollow, about 1 1/4 miles (air) northwest Cherokee Road, about 7 miles (air) north of Oroville. 302 Comment
  RSA325142  Trifolium albopurpureum M. S. Taylor, V. Oswald, B. Taylor 1984-4-4 5389 Butte S side of Humbug Rd, 3.1 mi W of Nimshew, ca 10 airmiles NE of Chico. Comment
  CHSC113520  Trifolium breweri Lowell Ahart 2014-7-7 19600 Butte On the south side of Philbrook Road, about 1 mile (air) west of Philbrook Reservoir. 1664 Comment
  CHSC31152  Trifolium breweri M. S. Taylor 1978-7-19 1778 Butte On e side of Upper Scotts John Rd, ca. 2 mi n of its jct with Scotts John Rd, ca. 6 mi ne of Jonesville. 1889 Comment
  CHSC113920  Trifolium ciliolatum Lowell Ahart 2014-5-13 19464 Butte Along the sides of McCabe Creek, below the high water line of Lake Oroville, about 100 yards west of the poor parking area, about 30 yards east of McCabe Creek, about 11 miles (air) east of Oroville. 244 Comment
  CHSC33562  Trifolium ciliolatum M. S. Taylor 1981-5-5 3607 Butte On e side of Lumpkin-LaPorte Rd, 1 mi n of Enterprise bridge over south fork Feather River, ca. 10 mi e of Oroville. 457 Comment
  CHSC40424  Trifolium ciliolatum Ahart; Jokerst 1985-5-10 4950 Butte Along the east branch of Potter Ravine, about 2 1/4 miles north of Oroville Dam. 320 Comment
  JEPS102323  Trifolium ciliolatum Lowell Ahart 2001-4-14 8720 Butte 2 mi N and 2 1/2 mi E of Honcut (12 mi SE of Oroville) 60 Comment
  RSA713023  Trifolium ciliolatum L. Ahart 2006-5-10 12629 Butte On the north side of the dirt road, Bardees Bar Road, about 4 miles (air) southwest of Pulga. 445 Comment
  UC398656  Trifolium ciliolatum A. A. Heller 1926-4-21 13924 Butte 7 mi n Chico (along Rock Creek) Comment
  SEINET12162061  Trifolium depauperatum D. I. Rasmussen 1975-1 22 Butte 6 mi NE of Oroville, W off Cherokee Rd., ca North Table Mountain 381 Comment
  SEINET7072744  Trifolium depauperatum var. amplectens A. G. Vestal 1963-5-9 s.n. Butte About 3.5 miles north of Oroville. Coordinate datum WGS 84/NAD83. (UTM Zone 10, 623209mE, 4374845mN. Coordinate datum: NAD 27.) Comment
  CHSC114955  Trifolium depauperatum var. depauperatum Lowell Ahart 2015-3-27 19981 Butte About 3/8 mile northeast of CoalCanyon Falls, about 1-1/8 miles (air) northwest of the improved parking area, North Table Mountain, about 8 miles north of Oroville. 388 Comment
  CHSC31347  Trifolium depauperatum var. depauperatum Roberta A. Boer 1980-4-13 6 Butte Ca.1/4 mile w of Foothill Blvd. and 2.7 mi se of jct of Olive Hwy and Foothill Blvd., ca. 3.5 mi se of Oroville. 121 Comment
  CHSC4180  Trifolium depauperatum var. depauperatum Kathy Sommarstrom 1967-3-25 8 Butte Found at Salmon Hole, Bidwell Park, to the right of trail, 100 yds from road. 76 Comment
  CHSC110103  Trifolium dubium L. P. Janeway 2012-5-29 10829 Butte Northern High Sierra Nevada. Plumas National Forest; along Ponderosa Way 4.3 road km north of Lower Forbestown Road; 1.4 air km south of the Ponderosa Reservoir dam. 485 Comment
  CHSC99326  Trifolium hirtum Lowell Ahart 2008-5-12 14760 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 258 Comment
  JEPS119701  Trifolium hirtum Lowell Ahart 2012-5-2 17975 -A Butte West of the Government Pole Line, Upper Bidwell Park, about 3/4 mile east of Chico. Comment
  CHSC43937  Trifolium incarnatum Vernon Oswald 1988-4-27 3286 Butte Hwy 99 along the Thermalito Afterbay at Hwy 162 (west). 33 Comment
  RSA0003654  Trifolium jokerstii Michael A. Vincent, Robert M. Rhode, Jim Snowden 1996-3-29 7227 Butte North Table Mountain, W of Cherokee Rd. N of Oroville. S side of Beatson Hollow, from center to west edge of butte. Comment
  UCSC010671  Trifolium melananthum Lowell Ahart 2015-6-6 20207 Butte About 1/4 mile northwest of the old large parking area on North Table Mountain, about 7 air miles north of Oroville. 332 Comment
  JEPS108858  Trifolium microcephalum Lowell Ahart 2006-5-10 12613 Butte Road cut bank, on the north side of the poor dirt road, Bardees Bar Road, about 100 yards north of the poor bridge across the North Fork of the Feather River at Bardees Bar, about 2 1/2 miles (air) southwest of Pulga 354 Comment
  CHSC30643  Trifolium obtusiflorum M. S. Taylor 1979-8-4 2179 Butte Ca. 1 mi n of Cresta Powerhouse on Hwy 70, ca. 30 mi n of Oroville. 487 Comment
  JEPS87708  Trifolium oliganthum Lowell Ahart 1994-4-16 7283 Butte ca 12 mi se Oroville (steep e slope of w side of North Honcut Creek, Peter Ahart Ranch, ca 1 1/4 mi n and 2 3/4 mi e of Honcut) 45 Comment
  CHSC38150  Trifolium subterraneum J. D. Jokerst 1983-5-12 1762 Butte Top of North Table Mt., north of Cherokee Rd. Comment
  CHSC90639  Trifolium tomentosum Lowell Ahart 2005-4-2 11690 Butte Overflow area on the east side of the Sacramento River, northwest of Parrott Landing, about 1 mile southeast of Ord Ferry, about 2 miles southeast of Ordbend, about 12 miles (air) southwest of Chico. 25 Comment
  SEINET10451928  Trifolium tridentatum var. aciculare Lowell Ahart 1985-4-21 Ahart 4882 Butte Along the sides of Wyandotte Creek, south of Central House Road, north-west of Honcut, about 12 miles south of Oroville, Butte County. Comment
  CHSC98964  Trifolium variegatum Lowell Ahart 2008-5-12 14748 Butte Below the high water line of Lake Oroville, on the east side of Sucker Creek, about 100 yards north of where Sucker Creek enters the South Fork of the Feather River, about 1/4 mile northwest of the Ponderosa Dam. 258 Comment
  CHSC38532  Trifolium variegatum var. major Vernon Oswald 1983-3-31 240 Butte Upper Bidwell Park, Chico, near Yahi Trail and Parking Area M (1.2 mi e of the powerlines). 146 Comment
  CHSC91000  Trifolium variegatum var. major Lowell Ahart 2005-5-7 11790 Butte East of a very small stream, Peter Ahart Ranch, about 2 miles north and 2 1/4 miles east of Honcut, about 12 miles (air) southeast of Oroville. 54 Comment
  UC725681  Trifolium variegatum var. melananthum A. A. Heller 1938-4-14 15035 Butte Table Mtn Comment
  RSA256668  Trifolium variegatum var. melananthum Linda M. Barker 156 Butte Table Mountain. 305 Comment
  CHSC115162  Trifolium variegatum var. variegatum Lowell Ahart 2015-6-6 20199 Butte Open pasture field, about 50 yards southeast of the old large parking area on North Table Mountain, about 7 miles (air) north of Oroville. 378 Comment
  SEINET10895574  Trifolium variegatum var. variegatum A. Arthur Heller 1913-4-6 Heller 10710 Butte Hills near Big Chico creek, east of Chico. Comment
  CHSC87214  Trifolium willdenovii Lowell Ahart 2004-4-4 10723 Butte About 300 yards east of Wilber Road, southeast of the high hill crossed by Wilber Road, cattle pasture, about 3 miles (air) west of Thermalito. 48 Comment
  POM253304  Trifolium willdenovii A. A. Heller 1938-5-4 15059 Butte At the Covered Bridge on Butte Creek east of Chico. 91 Comment
  UCSB45761  Triglochin scilloides Reisentz, Paul 1979-5-13 Butte 1 mile south on Derrick Road from Cherokee Road, 6 miles north on Derrick Road from Table Mt. Road Comment
  SEINET3450900  Triodanis perfoliata Lowell Ahart, John Dittes, Josephine Guardino, Steve Green 2003-5-27 10219 Butte Chico, Chico, Upper Bidwell Park, about 3.5 miles east of Manzanita Avenue, about 150 yards west of Bear Hole, just north of Parking Area J, just above the Iahi Trail on the water ditch, just south of a mall drainage 120 Comment
  CHSC26428  Triphysaria eriantha Gary McGrath 1977-3-3 4 Butte Ca. 20 m w of Cohasset Road, 8.4 km n of Chico. 75 Comment
  SD111924  Triphysaria eriantha subsp. eriantha Barbara Ertter, Jeff Strachan 1980-5-5 3263 Butte Peter Ahart Ranch ca 1 1/2 mi northeast of Honcut between Oroville and Marysville, pasture north of house 29 Comment
  SEINET13748734  Triphysaria eriantha subsp. eriantha R. R. Halse 2001-5-28 5974 Butte Along State Hwy. 99, 2.3 miles south of its junction with State Hwy. 149, near Gold Creek 40 Comment
  CHSC1833  Triphysaria pusilla R. Carter 1965-4-12 180 Butte Found at 6120 W. S. R., Oroville, 10 yds. from house on W side of driveway. 274 Comment
  CHSC44179  Trisetum canescens V. Oswald; L. Ahart 1988-7-26 3632 Butte Snow Mt. region located ca. 6 air mi se of Jonesville. 2026 Comment
  SEINET223501 Image available Triteleia hyacinthina Barbara Ertter, Lowell Ahart; Jeff Strachan 1980-5-6 3276 Butte Peter Ahart Ranch about 2.5 miles north-northeast of Honcut between Oroville and Marysville 30 Comment
  CAS-BOT-BC521604  Triteleia hyacinthina A. A. Heller; H. E. Brown 1902-5-5 5453 Butte Near Chico Comment
  CHSC49485  Triteleia ixioides subsp. anilina Vernon Oswald 1984-6-11 1276 Butte Humboldt Rd. between Lomo and Butte Meadows, 2.0 mi ne of Hwy 32. 1380 Comment
  CAS-BOT-BC523064  Triteleia ixioides subsp. anilina E. B. Copeland 1929-7-15 s. n. Butte Jonesville Comment
  CHSC101300  Triteleia laxa Lowell Ahart 2009-4-17 15549 Butte On the south slope of a ridge, about 150 yards west of Highway 32, near the south boundary, Upper Bidwell Park, about 5 miles (air) northeast of Chico. 373 Comment
  CHSC11068  Triteleia laxa Lowell Ahart 1965-4-11 Butte Peter Ahart Ranch, Honcut. 42 Comment
  CHSC3810  Triteleia laxa L. E. Dunkel 1965-4-24 30 Butte Upper Bidwell Park Rd., 600yds. Sw of Chico Rod and Gun Club building. 36 Comment
  CHSC3823  Triteleia laxa L. E. Dunkel 1965-4-24 30 Butte Along Upper Bidwell Park road, ca 600 yards sw of Chico Rod and Gun Club Building, Chico. 36 Comment
  CAS-BOT-BC522170  Triteleia laxa Mrs. J. H. Morrison 1932-4-10 s.n. Butte Durham Comment
  UCD139375  Triteleia laxa L. Ahart 1975-5-12 774 Butte along North Honcut Creek, Peter Ahart Ranch, Honcut. 45 Comment
  CHSC46596  Triteleia montana V. Oswald 1989-7-12 3846 Butte Road between Jones Meadow and Lotts Lake, ca. 3 mi (air) se of Philbrook Reservoir. 1901 Comment
  UC1564808  Triteleia montana V. Oswald and L. Ahart 1989-7-12 3846 Butte ca 3 air mi se Philbrook Reservoir (road between Jones Meadow and Lotts Lake) 1901 Comment
  CHSC38862  Triticum aestivum Vernon Oswald 1982-4-6 Butte Upper Bidwell Park, Chico, along the edge of Upper Park Rd. near Bare Hole. Comment
  CAS-BOT-BC200541  Tuctoria greenei John R. Reeder; Charlotte G. Reeder 1973-6-5 6235 Butte Ca. 11 miles S of Chico on Route 99 30 Comment
  CDA13280  Turritis glabra G. F. Hrusa, T. D. Wilfred 1996-7-9 13128 Butte Plumas National Forest; Above Jordan Creek. ordan Creek headwaters S of Hwy 162 near Roger's Cow Camp. Comment
  UCR219106  Typha angustifolia George K. Helmkamp, E. A. Helmkamp 2009-9-5 15598 Butte Sierra Nevada Mountains Foothills, Oro Dam Blvd. c. 2 mi. NE of Oroville and about one mile SW of the dam 88 Comment
  CAS-BOT-BC91085  Umbellularia californica R. F. Hoover 1965-10-16 9721 Butte Deer Creek Road east of Chico. Comment
  CHSC109103  Umbellularia californica Lowell Ahart 2012-3-23 17796 Butte On the north side of Ten Mile House Road, about 1/2 mile west of Highway 32, about 9 miles (air) northeast of Chico. 387 Comment
  CHSC47425  Umbellularia californica Lowell Ahart 1977-3-29 1232 Butte Along the Feather River, about 5 miles south-west of Oroville. 30 Comment
  CHSC59986  Umbellularia californica Sharol Lindenstein 1989-3-26 6 Butte Plumas Nat'l Forest, Hwy 70, ca. 3.5 mi sw of Sugar Loaf Mt., 2 mi nw of Cresta Powerhouse. 701 Comment
  SEINET12103413  Umbellularia californica Unknown 1977-4-16 2 Butte ca 7 mi NE of Chico, 45 ft W of water trough 488 Comment
  CHSC38385  Uropappus lindleyi Vernon Oswald 1983-4-9 305 Butte Upper Bidwell Park, Chico, on the north rim ca. 0.6 mi e of the power lines. 274 Comment
  UCD146249  Uropappus lindleyi Daniel S. Park; D. Potter, S. M. Still 2010-4-10 17 Butte Table Mt. near waterfall. Sheltered outcrop. 332 Comment
  SFV9367  Uropappus lindleyi M. L. Vincent 1963-6-5 379 Butte Pentz Road, 5 miles south of Paradise. Roadside. Comment
  RSA0034524  Utricularia gibba Lowell Ahart 2013-7-6 18825 Butte Peter Ahart Ranch, about 1 3/4 miles north and 1 1/2 miles east of Honcut, about 12 miles (air) southeast of Oroville. 37 Comment
  CHSC103224  Vaccinium parvifolium L. P. Janeway 2010-5-25 9980 Butte Northern High Sierra Nevada. Plumas National Forest; along Bean Creek Road 1.1 road km east of Bald Rock Road; just north of Little Bald Rock; along a small drainage into Brush Creek from the south. 1024 Comment
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Feb 8 2016
  CHSC41909  Vaccinium parvifolium Lowell Ahart 1983-7-29 4221 Butte Along dirt road, 2 miles south of Milsap Bar, about 23 miles north-east of Oroville. 750 Comment
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Feb 8 2016
  CHSC75364  Velezia rigida Lowell Ahart 1999-6-12 8087 Butte On the south part of the dam, above the high water line of the reservoir, north of Beatson Hollow, North Table Mountain, about 2 1/2 miles (air) west of the entrance gates along the west side of Cherokee Road, about 7 miles (air) north of Oroville. 297 Comment
  CAS-BOT-BC391341  Velezia rigida John Thomas Howell 1961-9-22 36755 Butte North Fork Feather River, 10 miles from Oroville Comment
  CHSC20543  Verbascum thapsus M. S. Taylor 1975-7-4 831 Butte Along s side of Big Chico Creek at Five Mile, Upper Bidwell Park. 76 Comment
  CHSC34059  Verbascum thapsus L. Ahart 1981-8-15 3039 Butte On n side of Snag Lake, ca. 10 mi n of Inskip. 1500 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
  UCD125969  Verbena R. Tofsrud Date Unknown s.n. Butte Exact location unknown. Comment
  CHSC49452  Verbena bonariensis Vernon Oswald 1987-7-5 3092 Butte Ranch De Farwell. E. side of Sacramento River just upstream from Golden State Island (perhaps technically in Glenn Co. because of shifting channel). 33 Comment
  CHSC35224  Verbena hastata M. S. Taylor 1977-11-10 1516 Butte Ca. 4 mi s of jct of Chico-Butte-Hwy and Ord Ferry Rd, ca. 20 mi s of Chico, on both sides of Chico-Butte Hwy. 30 Comment
  CHSC64138  Verbena hastata B. Castro 1988-7-28 281 Butte Ca 0.5 mi W of jcn Hwy 149 and Hwy 70, on N side of Hwy 149. 76 Comment
  SBBG128793  Verbena hastata L. Ahart 2012-10-20 18490 Butte S side of Big Chico Crk, ca. 50 yards E of Table 5, W of Cedar Grove, Lower Bidwell Park, Chico 68 Comment
  JEPS114727  Veronica americana Lowell Ahart 2008-5-8 14715 Butte Below the high water line of Lake Oroville, about 150 yards south of the poor parking area, on the east side of McCabe Creek, about 3/4 mile southwest of the Enterprise Bridge, about 11 miles (air) east of Oroville 259 Comment
  CHSC49047  Veronica anagallis-aquatica Vernon Oswald 1983-7-25 912 Butte Bidwell State Park, w of the parking area at the boat ramp on River Rd. near the washout. Comment
  CHSC33676  Veronica peregrina subsp. xalapensis L. Ahart 1981-5-16 2798 Butte Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC46412  Veronica peregrina subsp. xalapensis Lowell Ahart 1989-5-28 6281 Butte In a mined over area south of Oregon Gulch Road, sbout 1/2 mile north of the Cementery, about 1 1/4 miles west of Rocky Point, about 10 miles east and 3 miles north of Oroville. 335 Comment
  CHSC109591  Viburnum tinus Lowell Ahart; Linnea Hanson, Josephine Guardino 2012-5-23 18110 Butte Along the horse trail, north of Table 32, about 50 yards south of Vallombrosa Avenue, southwest of Crister, Lower Bidwell Park, Chico. 70 Comment
  UCD108786  Vicia benghalensis R. N. Raynor; H. A. Hannesson 1941-5-9 s.n. Butte 10 mi. S of Oroville on Marysville Road. Comment
  CHSC90369  Vicia villosa Lysanna Quijano 1983-4-15 8 Butte Junction of Pentz-Magalia Hwy and Pentz-Durham Road, 7 mi east-southeast of Chico. 207 Comment
  CHSC38536  Vicia villosa subsp. varia Vernon Oswald 1983-4-9 296 Butte Upper Bidwell Park, Chico, 50 ft e of Rod and Gun Club. 103 Comment
  JEPS115808  Vicia villosa subsp. varia Lowell Ahart 2009-4-26 15636 Butte About 10 miles northeast of Chico, Upper Bidwell Park, about 1/2 mile (air) southwest of the intersection of Highway 32 and Ten Mile House Road. About 150 yards southwest of Ten Mile House Road, in a small open meadow 286 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
  UCD109126  Vicia villosa subsp. varia G. K. Helmkamp; E. A. Helmkamp 2007-10-7 13071 Butte Northern Sacramento Valley: East Gridley Road at the west edge of the Feather River bridge. 27 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
  RSA402165  Viola adunca H. F. Copeland 1929-6-10 1219 Butte Jonesville. 1524 Comment
  CHSC11869  Viola lobata subsp. lobata E. B. Copeland 1929-7-13 384 Butte Jonesville. 1550 Comment
  CHSC27978  Viola purpurea subsp. dimorpha M. S. Taylor 1978-7-18 1715 Butte On e side of Humbolt Peak in Red Fir Forest, at Humbolt Summit. 2133 Comment
  CHSC50347  Viola purpurea subsp. integrifolia Vernon Oswald 1990-6-4 4281 Butte Pacific Crest Trail ca. 0.4 miles north of Cold Springs, west of Humbug Summit. 2026 Comment
  SD3138  Viola purpurea subsp. venosa E. B. Copeland 1930-6-24 427 Butte Jonesville, in low woods 1500 Comment
  SEINET11987377  Viola sempervirens C. A. Gardner 1974-1 24 Butte Chico, end of Woodstock Road 0.5 mi E of Hwy1, 1 mi N of Mendocino 30 Comment
  CHSC31744  Vulpia microstachys var. pauciflora L. Ahart 1978-5-16 1730 Butte In a pasture field. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC44601  Vulpia microstachys var. pauciflora Lowell Ahart 1978-5-2 1709 Butte Ridges on top of North Table Mountain, the ridges are near the large parking area, about 7 miles north of Oroville. 396 Comment
  CHSC97360  Vulpia microstachys var. pauciflora Paul Maslin 2005-5-1 60 Butte Sierra Nevada Range, west of Hwy 32 between Chico and Forest Ranch within Big Chico Creek Ecological Reserve (BCCER). UTM: 10608538E 4409116N. 490 Comment
  POM146467  Vulpia microstachys var. pauciflora A. A. Heller 1918-5-5 13011 Butte Near Magalia. Comment
  CHSC46446  Vulpia myuros Lowell Ahart 1989-5-23 6265 Butte Along Swedes Flat Road, about 1 mile east of the Oroville Bangor Highway, north of Bangor. 426 Comment
  SEINET7292828 Image available Vulpia myuros f. megalura A. A. Heller 1914-1 11269 Butte Hills 8 miles north of Oroville Comment
  CHSC31390  Vulpia myuros var. hirsuta J. D. Jokerst 1979-4-13 1199 Butte Top of North Table Mt., W edge in the vicinity of Coal Cr Canyon. 396 Comment
  CHSC92514  Vulpia myuros var. hirsuta Lowell Ahart 2005-12-11 12522 Butte On the sides of small ditches, on the Rice Experiment Station, between the Main Ditch and Stine Lateral, on the north side of Hamilton Road, about 1/4 mile east of Riceton Highway, about 2 1/4 miles (air) east of Biggs. 30 Comment
  CHSC33789  Woodwardia fimbriata M. S. Taylor 1981-5-14 3710 Butte S side of 22N49, at jct where creek crosses, next creek e of Little Ram Creek, ca. 1 mi sw of Four Mile Ridge Rd jct, ca. 0.5 mi n of Mountain House on Oroville-Quincy Hwy. 975 Comment
  CAS-BOT-BC77795  Woodwardia fimbriata John Thomas Howell 1959-9-20 34709 Butte Feather River Highway to West Branch bridge Comment
  CHSC31573  Xanthium strumarium L. Ahart 1977-9-20 1575 Butte Near North Honcut Creek. Peter Ahart Ranch, Honcut. 50 Comment
  CHSC78063  Xanthium strumarium Shelly Pirtle 1997-4-9 28 Butte +/- 20 miles south of Chico off of Biggs-Afton Road: Little Cry Creek. Comment
  JEPS115595  Yabea microcarpa Lowell Ahart 2009-4-22 15567 Butte West side of Guardians Trail, about 100 yards north of Pine Trail, Upper Bidwell Park, west of the intersection of Highway 32 and Ten Mile House Road, about 10 miles northeast of Chico 381 Comment
  SEINET10972972  Yabea microcarpa Mary Susan Taylor 1980-4-1 Taylor 2427 Butte T22N R2E sc sec 25. In Foothill Savan nah, on bluffs above and S of Butte Creek, ca. 1/4 mi downstream from Honey Run Covered Bridge ca. 6 mi E of Chico. 183 Comment
  CHSC22012  Zeltnera venusta Robert A. Schlising 1963-6-7 2615 Butte 3.1 mi s of Cohasset along Cohasset Highway. Comment
  CAS-BOT-BC530529  Zigadenus fremontii Lowell Ahart 1978-3-15 s.n. Butte 3 miles north-east of Honcut 75 Comment
  SEINET10971359  Zigadenus fremontii Mary Susan Taylor 1976-3-23 Taylor 1036 Butte Abundant in Valley Grassland, ca. 1/4 mi N of Pine Creek on Pine Creek-Cana Road, ca. 11 mi N of Chico; with Plagiobothrys scriptus. 61 Comment
  JEPS114180  Zigadenus paniculatus L. P. Janeway 2007-5-6 8971 Butte Northern High Sierra Nevada. Ridge top along a side road north off the road from Sawmill Peak to Flea Valley, 1.8 air km northeast of Sawmill Peak. Comment
  CDA4975  Ziziphus jujuba G. Blosser 2003-9-17 Butte Northern Sierra Nevada Foothills.; Junction of Kelly Ridge Road and short spur dirt road to Lake Oroville parking, 1280 feet northwest of Bidwell Bar Canyon Saddle Dam (north end of Miners Ranch Reservoir). Comment



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