39.29540 39.39540 -121.84020 -121.74020 Archived CCH Search Results
Search Results — 622 specimen records retrieved (622 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
  CHSC80585  Achillea millefolium Lowell Ahart 2001-6-13 8818 Butte Center 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. 22 Comment
  CHSC36550  Amaranthus albus L. Ahart 1982-7-10 3671 Butte About 1/4 e of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD97101  Amaranthus albus L. Ahart 1982-7-10 3671 Butte 1/4 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. Comment
  UCSB64011  Amaranthus albus Ahart, Lowell 1982-7-10 Butte About 1/4 miles south-east of the Gray Lodge Headquarters, about 12 miles south-west of Gridley, Butte County, California 30 Comment
  CHSC54559  Amaranthus californicus Lowell Ahart 1991-7-20 6667 Butte Gray Lodge Waterfowl Management Area, south-west of Gridley, about 1/2 mile south-east of the intersection of Pennington Road and Rutherford Road. 21 Comment
  UC1586501  Amaranthus californicus Lowell Ahart 1991-7-20 6667 Butte about 0.5 mi se intersection of Pennington Road and Rutherford Road (se of Gridley); Gray Lodge Waterfowl Mangement Area 21 Comment
  CHSC36553  Amaranthus deflexus L. Ahart 1982-7-10 3666 Butte Graylodge Wildlife Refuge Area, ca. 12 mi sw of Gridley. Near a small building in the parking area at the checking station. 35 Comment
  UCD97418  Amaranthus deflexus L. Ahart 1982-7-10 3666 Butte Near a small building in parking lot at check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37081  Amaranthus retroflexus L. Ahart; M. S. Taylor 1982-10-11 3850 Butte On dry disturbed soil of a fire guard, n of check-in station, Graylodge Wildlife Refuge, 12 mi. sw of Gridley. 35 Comment
  UCD105585  Amaranthus retroflexus L. Ahart 1982-10-11 3850 Butte N of check-in station, Graylodge Wildlife Refuge, ca. 12 miles sw of Gridley. 35 Comment
  CAS-BOT-BC55584  Ambrosia psilostachya Lowell Ahart 1982-10-11 3859 Butte Gray Lodge, south-west of Gridley 35 Comment
  CHSC37116  Ambrosia psilostachya L. Ahart; M. S. Taylor 1982-10-11 3859 Butte Ca. /1 mi SE of HQ, Graylodge Wildlife Refuge, ca. 12 mi SW of Gridley. 35 Comment
  UC1191563  Ammannia coccinea Herbert L. Mason 1945-9-19 12739 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1191591  Ammannia robusta Herbert L. Mason and Verne Grant 1945-7-10 12633 Butte n. of Marysville Butte (along Butte Creek, Grey Lodge Game Refuge - southern); Grey Lodge Game Refuge, Butte Creek Comment
  UCD102896  Ammannia robusta H. L. Mason; Verne Grant 1945-7-10 12633 Butte Butte Sink. Butt Creek, N of Marysville Buttes, Grey Lodge Game Refuge, southern. Comment
  CHSC80576  Ammi majus Lowell Ahart 2001-6-13 8814 Butte Sides of the dirt road south and 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. 22 Comment
  CHSC46467  Ammi visnaga Vernon Oswald 1989-6-26 3815 Butte Pennington Rd along east boundary of Gray Lodge Wildlife Area, just s of West Evans Reimer Rd. 21 Comment
  CHSC60662  Amsinckia lycopsoides Vernon H. Oswald 1993-4-24 5295 Butte Gray Lodge Wildlife Manegement Area, 0.1 mi N of Rutherford Rd in levee raod leading to Parking Lots 1, 2, and 3, ca. 0.5 mi E of Headquarters. 19 Comment
  CHSC36307  Anagallis arvensis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4362 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC24808  Anthemis cotula E. L. Rilla 1976-9-18 30 Butte .5 mi S of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly W of collection area. 21 Comment
  CHSC113288  Anthriscus caucalis Lowell Ahart 2014-4-9 19342 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
  CHSC113292  Anthriscus caucalis Lowell Ahart 2014-4-9 19332 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  CHSC36971  Anthriscus caucalis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4378 Butte Graylodge Wildlife Refuge, ca. 1/4 mi se of HQ, ca. 12 mi sw of Gridley. 19 Comment
  JEPS122257  Anthriscus caucalis Lowell Ahart 2014-4-9 19332 Butte West edge of Pennington Road, at intersection of Pennington Road and Colusa Highway, about 5 miles west of Gridley. Comment
  CHSC80525  Astragalus tener var. ferrisiae Lowell Ahart 2001-4-15 8721 Butte About 15 feet southeast 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. 22 Comment
  CHSC36556  Atriplex argentea var. mohavensis L. Ahart 1982-7-10 3662 Butte In parking area of checking station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37115  Atriplex argentea var. mohavensis L. Ahart; M. S. Taylor 1982-10-11 3862 Butte Ca. 0.1 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC46866  Atriplex argentea var. mohavensis Vernon Oswald 1989-9-6 3982 Butte West Liberty Rd along the n boundary of Gray Lodge Wildlife Area, 0.9 mi w of Pennington Rd. 19 Comment
  CHSC55210  Atriplex argentea var. mohavensis Lowell Ahart 1991-9-6 6712 Butte On the north side of Rutherford Road, about 1/8 mile west of Pennington Road, west of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles south-west of Gridley. 30 Comment
  UC1586519  Atriplex argentea var. mohavensis Lowell Ahart 1991-9-6 6712 Butte about 10 mi se Gridley (on n side of Rutherford Road, about .12 mi w of Pennington Road, w of Parking Area, Gray Lodge Waterfowl Management Area); Gray Lodge Waterfowl Management Area 30 Comment
  CHSC55054  Atriplex canescens Lowell Ahart 1991-9-6 6713 Butte On the south side of Rutherford Road, about 1/8 mile west of Pennington Road, south of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles south-west of Gridley. 30 Comment
  SEINET3930601  Atriplex canescens Lowell Ahart 1991-9-6 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.; 0 30 Comment
  UC1586520  Atriplex canescens Lowell Ahart 1991-9-6 6713 Butte about 10 mi sw Gridley (s side Rutherford Road, about 1/8 mi w of Pennington Road, s of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 mi sw of Gridley); Gray Lodge Waterfowl Management Area, sw of Gridley 30 Comment
  CAS-BOT-BC168562  Atriplex cordulata Lowell Ahart 1982-10-11 3861 Butte About 1/10 mile south-east of the Gray Lodge Headquarters, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CHSC37114  Atriplex cordulata L. Ahart; M. S. Taylor 1982-10-11 3861 Butte Ca. 0.1 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC46867  Atriplex cordulata Vernon Oswald 1989-9-6 3987 Butte Gray Lodge Wildlife Area just s of Rutherford Rd at Parking Area 5. 19 Comment
  CHSC61028  Atriplex cordulata Vernon H. Oswald 1993-7-29 5728 Butte Gray Lodge Wildlife Management Area W of Gridley, W side of levee road ca. 100 ft S of Parking Lot 5 on Rutherford Rd., 0.5 mi W of Pennington Rd. 21 Comment
  CHSC61029  Atriplex cordulata Vernon H. Oswald 1993-7-29 5734 Butte Gray Lodge Wildlife Management Area W of Gridley, on the W sid o f a levee road and on the S side of Rutherford Rd. just E of the headquarters complex, ca. 1.75 mi W of Pennington Rd. 19 Comment
  JEPS90671  Atriplex cordulata Vernon H. Oswald 1993-7-29 5728 Butte w of Gridley (Gray Lodge Wildlife Management Area, w side of levee road, 100 ft s of Parking Lot 5 on Rutherford Road, 0.5 mi w of Pennington Road); Gray Lodge Wildlife Management Area 21 Comment
  JEPS90672  Atriplex cordulata Vernon H. Oswald 1993-7-29 5734 Butte w of Gridley (Gray Lodge Wildlife Management Area, w side of levee road and on s side of Rutherford Road, just e of headquarters complex, 1.75 mi w of Pennington Road); Gray Lodge Wildlife Management Area 19 Comment
  JEPS90674  Atriplex cordulata Dean W. Taylor 1993-8-31 14079 Butte Sacramento Valley, Gray Lodge State Wildlife Area (Westside Zone), 120 m s of Rutherford Rd and public shooting parking lot #5, 1.5 mi e of refuge headquarters Gray Lodge State Wildlife Area; Sacramento Valley, Gray Lodge State Wildlife Area 21 Comment
  CHSC46262  Atriplex depressa Vernon Oswald 1989-4-20 3746 Butte Gray Lodge Wildlife Area, S side of Rutherford Rd at Parking Area 5. 19 Comment
  CHSC61034  Atriplex depressa Vernon H. Oswald 1993-7-29 5729 Butte Gray Lodge Wildlife Management Area W of Gridley, W side of levee road ca. 100 ft S of Parking Lot 5 on Rutherford Rd., 0.5 mi W of Pennington Rd. 21 Comment
  CHSC34171  Atriplex heterosperma L. Ahart 1981-9-10 3149 Butte Along the edge of ditch near entrance to Graylodge Waterfowl Mgmt HQ w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37077  Atriplex heterosperma L. Ahart 1982-9-9 3766 Butte On sides of deep ditch, near water line on bare soil, ca. 100 m n of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC46869  Atriplex heterosperma Vernon Oswald 1989-9-6 3988 Butte Gray Lodge Wildlife Area just w of Parking Area 2. 19 Comment
  CHSC52804  Atriplex heterosperma Lowell Ahart 1981-11-6 3219 Butte Found on good soil and along the sides of the deep ditch, near the entrance to the Gray Lodge Waterfowl Management HQ, just w of Pennington Rd, ca 12 mi sw of Gridley. 35 Comment
  UCR88748  Atriplex heterosperma Lowell Ahart 1981-11-6 3221 Butte Sacramento Valley, Gray Lodge, c. 12 mi. SW of Gridley. Deep ditch on north side of road near entrance to waterfowl management area headquarters 35 Comment
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Jan 6 2008
  CAS-BOT-BC172670  Atriplex lentiformis Lowell Ahart 1981-11-6 3217 Butte Gray Lodge, south-west of Gridley 35 Comment
  CAS-BOT-BC172671  Atriplex lentiformis Lowell Ahart 1981-9-10 3144 Butte Gray Lodge, SW of Gridley 35 Comment
  CAS-BOT-BC172673  Atriplex lentiformis Lowell Ahart 1981-7-26 3008 Butte 0.1 mile west of Pennington Road on dirt road that lead to the Gray Lodge Waterfowl Management Headquarters, ca 12 miles southwest of Gridley 35 Comment
  CAS-BOT-BC311786  Atriplex lentiformis Lowell Ahart 1981-11-6 3217 Butte Gray Lodge, south-west of Gridley 35 Comment
  CHSC34024  Atriplex lentiformis L. Ahart 1981-7-26 3008 Butte A little e of the dirt rd, ca. 1 mi nw of Pennington Rd, on the n branch rd that leads to hunter parking areas, ca. 1/2 mi ne of the Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34124  Atriplex lentiformis L. Ahart 1981-9-10 3144 Butte Near the entrance to the Gray Lodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34770  Atriplex lentiformis L. Ahart 1981-11-6 3217 Butte Near entrance to Graylodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  UCD97511  Atriplex lentiformis Lowell Ahart 1981-11-6 3217 Butte Gray Lodge, south-west of Gridley. Comment
  RSA592536  Atriplex lentiformis subsp. lentiformis S. O. Mattoon 1976-8-13 3 Butte Grey Lodge National Wildlife Refuge, West of Gridley. 46 Comment
  CHSC61032  Atriplex minuscula Vernon H. Oswald 1993-7-29 5735 Butte Gray Lodge Wildlife Management Area W of Gridley, on the W side of a levee road and on the S side of Rutherford Rd. just E of the headquarters complex, ca. 1.75 mi W of Pennington Rd. 19 Comment
  JEPS90589  Atriplex minuscula Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, ca. 1.5 mi e of refuge headquarters); Sacramento Valley, Pennington 7.5' USGS 21 Comment
  JEPS90593  Atriplex minuscula Vernon H. Oswald 1993-7-29 5735 Butte on w side of a levee road and on s side of Rutherford Rd. just e headquarters complex (ca. 1.75 mi w of Pennington Rd., w of Gridley); Gray Lodge Wildlife Management Area 19 Comment
  JEPS90594  Atriplex minuscula Vernon H. Oswald 1993-7-29 5729 Butte w side of levee road ca 100 ft s Parking Lot 5 on Rutherford Rd. (0.5 mi w of Pennington Rd., w of Gridley); Gray Lodge Wildlife Management Area 21 Comment
  UCD97614  Atriplex prostrata L. Ahart 1982-10-11 3855 Butte west of check-in station, Graylodge Wildlife Refuge, 12 miles SW of Gridley. Comment
  CHSC34049  Atriplex rosea L. Ahart 1981-7-26 3006 Butte On the sides of a large deep ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34772  Atriplex rosea Lowell Ahart 1981-11-6 3220 Butte Near the entrance to the Gray Lodge Waterfowl Mangement Headquarters, just west of Pennington Road, about 12 miles south-west of Gridley. 35 Comment
  CAS-BOT-BC311784  Atriplex serenana Lowell Ahart 1981-11-6 3218 Butte Gray Lodge, south-west of Gridley 35 Comment
  CHSC34050  Atriplex serenana L. Ahart 1981-7-26 3007 Butte Along edge of dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that lead to the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34771  Atriplex serenana L. Ahart 1981-10-6 3218 Butte Near entrance to Graylodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC45553  Atriplex serenana Lowell Ahart 1977-7-24 1493 Butte On the Gray Lodge Waterfowl Management Area, about 12 miles southwest of Gridley. 30 Comment
  UCD97780  Atriplex serenana Lowell Ahart 1981-11-6 3218 Butte Gray Lodge; south-west of Gridley. 35 Comment
  CAS-BOT-BC176601  Atriplex serenana var. serenana Lowell Ahart 1981-11-6 3218 Butte Gray Lodge, south-west of Gridley 35 Comment
  CAS-BOT-BC176602  Atriplex serenana var. serenana Lowell Ahart 1981-9-10 3145 Butte Gray Lodge, SW of Gridley 35 Comment
  CAS-BOT-BC176604  Atriplex serenana var. serenana Lowell Ahart 1981-7-26 3007 Butte 0.1 mile west of Pennington Road on dirt road that lead to the Gray Lodge Waterfowl Management Headquarters, ca 12 miles southwest of Gridley 35 Comment
  CAS-BOT-BC176606  Atriplex serenana var. serenana Lowell Ahart 1977-7-24 s.n. Butte Gray Lodge, 10 miles southwest of Gridley 30 Comment
  CHSC48286  Atriplex serenana var. serenana Vernon Oswald 1983-6-28 779 Butte Graylodge Waterfowl Management Area in Parking Lot 4. Comment
  CHSC61036  Atriplex subtilis Vernon H. Oswald 1993-7-29 5730 Butte Gray Lodge Wildlife Management Area W of Gridley, W side of levee road ca. 100 ft S of Parking Lot 5 on Rutherford Rd., 0.5 mi W of Pennington Rd. 21 Comment
  JEPS90625  Atriplex subtilis Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, (Pennington 7 1/2 USGS quadrangle, 1973 edition), ca. 1.5 mi e of refuge hq.); Sacramento Valley, Gray Lodge State Wildlife Area (Westside 21 Comment
  JEPS90626  Atriplex subtilis Vernon H. Oswald 1993-7-29 5730 Butte w side of levee rd. ca. 100 ft s Parking Lot 5 on Rutherford Road (0.5 mi w of Pennington Rd., w of Gridley); Gray Lodge Wildlife Management Area 21 Comment
  JEPS90627  Atriplex subtilis Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, (Pennington 7 1/2 USGS quadrangle, 1973 edition), ca. 1.5 mi e of refuge hq.); Sacramento Valley, Gray Lodge State Wildlife Area (Westside 21 Comment
  JEPS90628  Atriplex subtilis Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, (Pennington 7 1/2 USGS quadrangle, 1973 edition), ca. 1.5 mi e of refuge hq.); Sacramento Valley, Gray Lodge State Wildlife Area (Westside 21 Comment
  JEPS90629  Atriplex subtilis Dean W. Taylor 1993-8-31 14076 Butte 120 m s Rutherford Road (and (as depicted on the refuge map) public shooting parking lot no. 5, (Pennington 7 1/2 USGS quadrangle, 1973 edition), ca. 1.5 mi e of refuge hq.); Sacramento Valley, Gray Lodge State Wildlife Area (Westside 21 Comment
  CHSC34048  Atriplex triangularis L. Ahart 1981-7-26 3005 Butte On the sides of a large deep ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34170  Atriplex triangularis L. Ahart 1981-9-10 3146 Butte On wet soil along the edge of a ditch near entrance to Graylodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34769  Atriplex triangularis L. Ahart 1981-11-6 3221 Butte On sides of a deep ditch, on n side of rd near the entrance to Graylodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37085  Atriplex triangularis L. Ahart 1982-10-11 3856 Butte On the sides of deep ditches, along shaded adges of roads, in low damp places, w of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37086  Atriplex triangularis L. Ahart; M. S. Taylor 1982-10-11 3855 Butte On the sides of a deep ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi s wof Gridley. 35 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
  CHSC47126  Atriplex triangularis Vernon H. Oswald 1989-10-18 4025 Butte West Liberty Road along north boundary of Gray Lodge Wildlife Area, 0.8 mi w of Pennington Rd. 19 Comment
  UC1490564  Atriplex triangularis Lowell Ahart 1981-11-6 3221 Butte about 12 mi sw Gridley (just w of Pennington Road, n side of road near the entrance to the Gray Lodge Waterfowl Management Headquarters); Gray Lodge Waterfowl Management, sw of Gridley 35 Comment
  CDA34273  Azolla filiculoides L. Ahart 2009-10-8 16412 Butte About 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area. Approximately, 7 miles (air) southwest of Gridley. Comment
  CHSC113304  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte Bottom of a drying deep pond, about 50 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
  CHSC36303  Azolla filiculoides M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4370 Butte Ca. 1/2 mi s of HQ on Graylodge Waterfowl Refuge, ca. 12 mi sw of Gridley. 19 Comment
  CHSC79632  Azolla filiculoides Lowell Ahart 2001-1-26 8718 Butte On the east side of the parking lot, on the north side of Rutherford Road, about 1/4 mile west of Pennington Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS116119  Azolla filiculoides Lowell Ahart 2009-10-8 16412 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  JEPS122266  Azolla filiculoides Lowell Ahart 2014-4-9 19338 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  RSA755370  Azolla filiculoides Lowell A. Ahart 2009-10-8 16412 Butte In a deep large ditch on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 air miles southwest of Gridley. 20 Comment
  CAS-BOT-BC66254  Azolla mexicana M. S. Taylor; L. Ahart 1982-10-11 5162 Butte Pennington quad. Graylodge Wildlife Refuge, m side of Rutherford Rd, ca. 1/2 mi e of Pennington Rd, 21 Comment
  CAS-BOT-BC66255  Azolla mexicana M. S. Taylor; L. Ahart; J. Jokerst 1982-4-28 4370 Butte Pennington quad., ca. 1/2 mi s of HQ on Graylodge Waterfowl Refuge, ca. 12 mi sw of Gridley 19 Comment
  GH376895  Azolla mexicana Steven Ela 1975-1-1 Unknown Graylodge State Waterfowl Area Comment
  GH376896  Azolla mexicana Steven Ela 1974-1-1 Unknown Graylodge State Waterfowl Area Comment
  CHSC103016  Azolla microphylla Lowell Ahart 2009-10-8 16412 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CAS-BOT-BC98008  Baccharis pilularis Lowell Ahart 1981-11-6 3225 Butte Gray Lodge, south-west of Gridley 35 Comment
  CHSC34781  Baccharis pilularis subsp. consanguinea Lowell Ahart 1981-11-6 3225 Butte On S side of rd, a little E of Graylodge Waterfowl Mgmt HQ, ca. 1/2 mi W of Pennington Rd, ca. 12 mi SW of Gridley. 35 Comment
  UCD129435  Baccharis pilularis subsp. consanguinea Lowell Ahart 1981-11-6 3225 Butte Gray Lodge, south-west of Gridley. 35 Comment
  CAS-BOT-BC98185  Baccharis salicifolia Gordon H. True 1971-4-8 6450 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles southwest of Gridley. 24 Comment
  CHSC34114  Bassia hyssopifolia L. Ahart 1981-9-10 3148 Butte Along the edge of a ditch near the entrance to the Graylodge Waterfowl Mgmt HQ, w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34774  Bassia hyssopifolia L. Ahart 1981-11-6 3222 Butte On banks of deep ditch, n side of rd near entrance to Graylodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC48288  Bassia hyssopifolia Vernon Oswald 1983-6-28 780 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Comment
  UCD97523  Bassia hyssopifolia Lowell Ahart 1981-11-6 3222 Butte Gray Lodge, south-west of Gridley. 35 Comment
  UCD97590  Bassia hyssopifolia M. S. Taylor; L. Ahart 1982-10-11 5145 Butte Graylodge Wildlife Refuge, near checking station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  CAS-BOT-BC102073  Bidens frondosa Lowell Ahart 1982-10-11 3857 Butte west of the check-in-station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  UC1192175  Bidens frondosa Herbert L. Mason and Verne Grant 1946-9-4 13108 Butte 833 Canal, West Gridley Road, Butte Sink Butte Sink, 833 Canal, West Gridley Road Comment
  CAS-BOT-BC75484  Bolboschoenus glaucus M. S. Taylor 1982-5-22 4503 Butte Graylodge Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Road. 21 Comment
  CHSC36548  Bolboschoenus glaucus L. Ahart 1982-7-10 3675 Butte Duck pond, ca. 1/2 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC36842  Bolboschoenus glaucus M. S. Taylor 1982-5-22 4503 Butte Graylodge Waterfowl Refuge, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC45122  Bolboschoenus glaucus Vernon Oswald 1985-5-8 1751 Butte Graylodge Waterfowl Management Area near Parking Lot #5 on Rutherford Rd. Comment
  CAS-BOT-BC31373  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12731 Butte Gray Lodge Game Refuge, NW of Pennington. Comment
  UC1100853  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12734 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  UC1100854  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12733 Butte nw Pennington; Gray Lodge Game Refuge Comment
  UC1100857  Bolboschoenus maritimus Herbert L. Mason 1945-9-19 12731 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  CAS-BOT-BC75492  Bolboschoenus maritimus subsp. paludosus Lowell Ahart 1981-11-6 3226 Butte Gray Lodge, southwest of Gridley. 35 Comment
  CHSC34780  Bolboschoenus maritimus subsp. paludosus L. Ahart 1981-11-6 3226 Butte Small ditch, w of parking area, e of Graylodge Waterfowl Mgmt HQ, ca. 1/4 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  UCD140017  Bolboschoenus maritimus subsp. paludosus Lowell Ahart 1981-11-6 3226 Butte Gray Lodge, south-west of Gridley. 35 Comment
  CHSC80540  Brassica napus Lowell Ahart 2001-5-10 8739 Butte On the sides 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. 22 Comment
  JEPS102338  Brassica napus Lowell Ahart 2001-5-10 8739 Butte 4 air miles SW of Gridley (on sides of dirt rd E of the large pump, on S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) 22 Comment
  CHSC113380  Brassica nigra Lowell Ahart 2014-4-9 19336 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  CHSC35315  Brassica nigra L. Ahart 1982-3-13 3252 Butte Along edge of dirt rd to Graylodge HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC38022  Brassica nigra R. E. Preston 1982-4-4 218 Butte On bank of levee; on s side of Rutherford Rd, ca. 0.7 mi w of Pennington Rd, Gray Lodge State Wildlife Area. 21 Comment
  CHSC80541  Brassica nigra Lowell Ahart 2001-5-10 8740 Butte On the sides 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. 22 Comment
  JEPS122267  Brassica nigra Lowell Ahart 2014-4-9 19336 Butte West edge of Pennington Road, at intersection of Pennington Road and Colusa Highway, about 5 miles west of Gridley. Comment
  CHSC113296  Brassica rapa Lowell Ahart 2014-4-9 19330 Butte Rice field, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CAS-BOT-BC145536  Briza minor Lowell Ahart 1982-4-29 3391 Butte Sierra Nevada. A little west of the sign in station, Gray Lodge, ca. 12 miles southwest of Gridley. 36 Comment
  UCD57387  Briza minor L. Ahart 1982-4-29 3391 Butte Graylodge Wildlife Refuge. A little W of check-in station. Ca. 12 miles SW of Gridley. 35 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
  CHSC113302  Capsella bursa-pastoris Lowell Ahart 2014-4-9 19326 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  JEPS122272  Capsella bursa-pastoris Lowell Ahart 2014-4-9 19326 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  CHSC113301  Cardamine oligosperma Lowell Ahart 2014-4-9 19335 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  CHSC113283  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2014-4-9 19333 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  JEPS122273  Carduus pycnocephalus subsp. pycnocephalus Lowell Ahart 2014-4-9 19333 Butte West edge of Pennington Road, at intersection of Pennington Road and Colusa Highway, about 5 miles west of Gridley. Comment
  CHSC46996  Carex praegracilis Vernon Oswald 1988-4-26 3281 Butte Gray Lodge Waterfowl Management Area, just s of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC77822  Carex praegracilis Lowell Ahart 2000-4-27 8331 Butte In the field on the east side of Pennington Road, about 100 feet north of Rutherford Road, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 21 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
  JEPS100491  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
  JEPS104628  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) SW of Gridley. 21 Comment
  JEPS98415  Carex praegracilis Lowell Ahart 2000-4-27 8331 Butte 6 air miles SE of Gridley (E side of Pennington Road, 100 ft N of Rutherford Road,); Gray Lodge Waterfowl Management Area 21 Comment
  JEPS81481  Castilleja attenuata M. S. Taylor 1982-4-28 4355 Butte ca 12 mi sw Gridley (Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd); Pennington Quad. 21 Comment
  CHSC43948  Castilleja rubicundula subsp. rubicundula Vernon Oswald 1988-4-26 3284 Butte Gray Lodge Waterfowl Management Area, ca. 0.25 mi s of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC43963  Castilleja rubicundula subsp. rubicundula V. Oswald 1988-5-25 3340 Butte Gray Lodge Waterfowl Management Area, ca. 0.25 mi s of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC61027  Casuarina equisetifolia Vernon H. Oswald 1993-7-29 5731 Butte Gray Lodge Wildlife management Area W of Gridley, S side of Rutherford Rd. at Parking Lot 4, ca. 1.5 mi W of Pennington Rd. 19 Comment
  CAS-BOT-BC271506  Centromadia parryi subsp. rudis M. S. Taylor; L. Ahart 1982-5-28 4345 Butte Gray Lodge Waterfowl Management Area, N side of Ruthrford Road, ca. 1/8 mi W of its jct with Pennington Road at the checking station, ca. 12 miles southwest of Gridley 21 Comment
  CHSC46470  Centromadia parryi subsp. rudis Vernon Oswald 1989-6-26 3814 Butte Gray Lodge Wildlife Area just s of Rutherford Rd at Parking Area 5. 19 Comment
  CHSC44871  Centromadia pungens Lowell Ahart 1977-7-24 1494 Butte On the Gray Lodge Wildlife Refuge, south-west of Gridley. 28 Comment
  CHSC35965  Ceratophyllum demersum M. S. Taylor 1982-5-22 4493 Butte Graylodge Waterfowl Refuge, in slough at end of West Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  UC1101386  Ceratophyllum demersum Herbert L. Mason and Verne Grant 1946-8-14 13044 Butte Butte Sink Comment
  CDA34264  Chamaesyce maculata L. Ahart 2009-10-8 16414 Butte About 20 yards northeast of Parking Lot 12,Gray Lodge Waterfowl Management Area. Approximately, 7 miles (air) southwest of Gridley. Comment
  CHSC102521  Chamaesyce maculata Lowell Ahart 2009-10-8 16414 Butte South of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  JEPS115676  Chamaesyce maculata Lowell Ahart 2009-10-8 16414 Butte South of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  CHSC34045  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 1981-7-26 3001 Butte Along the edge of the rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Graylodge Waterfowl HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34046  Chenopodium album L. Ahart 1981-7-26 3004 Butte On the sides of a large deep ditch near the dirt road, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34768  Chenopodium album L. Ahart 1981-11-6 3223 Butte On good soil on west side of road near entrance to Graylodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC34047  Chenopodium murale L. Ahart 1981-7-26 3002 Butte On sides of large deep ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC52805  Chenopodium murale Lowell Ahart 1981-11-6 3223 Butte On the w side of rd near entrance to Gray Lodge Waterfowl Mgmt HQ, just w of Pennington Rd, ca 12 mi sw of Gridley. 35 Comment
  CHSC36290  Conium maculatum M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4357 Butte Graylodge Waterfowl Refuge roadsides, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC35963  Convolvulus arvensis M. S. Taylor 1982-5-22 4499 Butte Graylodge Waterfowl Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  CHSC80534  Coriandrum sativum Lowell Ahart 2001-5-10 8742 Butte On the sides 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. 22 Comment
  CHSC80577  Coriandrum sativum Lowell Ahart 2001-6-13 8815 Butte Center 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. 22 Comment
  CHSC36291  Crassula aquatica M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4358 Butte Graylidge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC80522  Crassula aquatica Lowell Ahart 2001-4-15 8729 Butte A deep ditch, southeast 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. 22 Comment
  JEPS102771  Crassula aquatica Lowell Ahart 2001-4-15 8728 Butte 4 air mi SW of Gridley (Gray Lodge Waterfowl Management Area; deep ditch SE of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road) 22 Comment
  CHSC114966  Crassula tillaea Lowell Ahart 2015-3-26 19967 Butte On the sides of the dirt road, about 80 yards east of Parking Lot 10, about 2 miles east of Rutherford Road, Gray Lodge Wildlife Area, about 3-1/2 miles (air) southwest of Gridley. 22 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
  CHSC82225  Crassula tillaea Lowell Ahart 2002-4-10 9479 Butte Along the edge of the gravel roads, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  JEPS103517  Crassula tillaea Lowell Ahart 2002-4-10 9479 Butte Along the edge of the gravel roads, E of Parking Lot 10, Gray Lodge State Wildlife Management Area, ca 4 miles (air) SW of Gridley. 22 Comment
  JEPS103611  Crassula tillaea Lowell Ahart 2002-4-10 9479 Butte Along the edge of the gravel roads, E of Parking Lot 10, Gray Lodge State Wildlife Management Area, ca 4 miles (air) SW of Gridley. 22 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
  CHSC43960  Cressa truxillensis V. Oswald 1988-5-25 3338 Butte Pennington Rd. just south of W. Liberty Rd. on the edge of Gray Lodge Waterfowl Management Area. 21 Comment
  CHSC61043  Cressa truxillensis Vernon H. Oswald 1993-7-29 5737 Butte Gray Lodge Wildlife Management Area W of Gridley, 0.3 mi S of Rutherford Rd. on the first levee road E of the headquarters complex. 19 Comment
  CAS-BOT-BC190087  Crypsis schoenoides Herbert L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CAS-BOT-BC190091  Crypsis schoenoides Lowell Ahart 1982-7-10 3672 Butte Sierra Nevada. On bottom of a dry duck pond, ca. 0.25 mile southeast of Gray Lodge Headquarters, ca. 13 miles southwest of Gridley. 35 Comment
  CAS-BOT-BC190093  Crypsis schoenoides Herbert L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CHSC115369  Crypsis schoenoides Lowell Ahart 2015-4-24 20077 Butte Normal size plants, on dry to wet bare soil, bottom and sides (road edges) of a large duck field. 19 Comment
  CHSC36551  Crypsis schoenoides L. Ahart 1982-7-10 3672 Butte On the bottom of a duck pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  POM313218  Crypsis schoenoides H. L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  RSA268077  Crypsis schoenoides J. R. Reeder, C. G. Reeder 1972-6-6 5658 Colusa ca. 8 miles W of Live Oak, one mile S of Wildlife Area headquarters. 183 Comment
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Aug 18 2014
  UC1100332  Crypsis schoenoides Herbert L. Mason 1945-9-19 12729 Butte nw Pennington; Gray Lodge Game Refuge Comment
  UCD59826  Crypsis schoenoides H. L. Mason 1945-9-19 12729 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CAS-BOT-BC190169  Crypsis vaginiflora Lowell Ahart 1982-7-10 3673 Butte Sierra Nevada. Ca. 0.25 mile southeast of the Gray Lodge Headquarters, ca. 13 miles southwest of Gridley. 35 Comment
  CHSC36534  Crypsis vaginiflora L. Ahart 1982-7-10 3673 Butte On bottom of dry pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  RSA268076  Crypsis vaginiflora J. R. Reeder, C. G. Reeder 1972-6-6 5657 Colusa ca. 8 miles W of Live Oak, one mile S of Wildlife Area headquarters. 183 Comment
  UC1100188  Crypsis vaginiflora Herbert L. Mason 1945-9-19 12735 Butte nw Pennington; Gray Lodge Game Refuge Comment
  CHSC61018  Cupressus arizonica subsp. arizonica Vernon H. Oswald 1993-7-29 5732 Butte Gray Lodge Wildlife Management Area W of Gridley, S side of Rutherford Rd. at Parking lot 4, ca. 1.5 mi W of Pennington Rd. 19 Comment
  CHSC61019  Cupressus macrocarpa Vernon H. Oswald 1993-7-29 5733 Butte Gray Lodge Wildlife Management Area W of Gridley, S side of Rutherford Rd. at Parking lot 4, ca. 1.5 mi W of Pennington Rd. 19 Comment
  CAS-BOT-BC224424  Cuscuta californica Herbert L. Mason; Verne Grant 1946-9-27 13132 Butte Butte Sink. Graylodge Game Refuge Comment
  CHSC55055  Cuscuta californica Lowell Ahart 1991-9-6 6711 Butte On the north side of Rutherford Road, about 1/8 mile west of Pennington Road, east of Parking Area 5, Gray Lodge Waterfowl Management Area, about 10 miles south-west of Gridley. 30 Comment
  RSA312628  Cuscuta californica H. L. Mason, Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge, Butte Sink Comment
  UC1191664  Cuscuta californica Herbert L. Mason and Verne Grant 1946-9-27 13132 Butte Graylodge Game Refuge Butte Sink Comment
  UC1586521  Cuscuta californica Lowell Ahart 1991-9-6 6711 Butte 10 mi sw Gridley (n side of Rutherford Road, .12 mi w of Pennington Road, e of Parking Area 5); Gray Lodge Waterfowl Management Area 30 Comment
  CHSC48360  Cuscuta californica var. californica V. Oswald 1988-5-25 3339 Butte Just nw of intersection of Pennington Rd. and Rutherford Rd. at Gray Lodge Waterfowl Management Area. 21 Comment
  CAS-BOT-BC114742  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte Gray Lodge Game Refuge, NW of Pennington Comment
  UC1100546  Cyperus difformis Herbert L. Mason 1945-9-19 12737 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  CHSC37531  Cyperus eragrostis M. S. Taylor; L. Ahart 1982-10-11 5157 Butte Graylodge Wildlife Refuge, ca. 1/4 mi s of Rutherford Rd, on rd to parking lot 5, ca. 1/4 mi se of HQ, 12 mi sw of Gridley. 19 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
  UC1100533  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-15 13049 Butte near caretaker's house Greylodge Game Refuge (#833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  UC1100535  Cyperus eragrostis Herbert L. Mason 1945-9-19 12736 Butte n.w. Pennington (Gray Lodge Game Refuge); Gray Lodge Game Refuge Comment
  UC1100538  Cyperus eragrostis Herbert L. Mason and Verne Grant 1945-7-10 12634 Butte n. of Marysville (marshes along Butte Creek, Butte Sink); Butte Sink, Grey Lodge Game Refuge Comment
  JEPS120855  Cyperus erythrorhizos Lowell Ahart 2013-6-18 18807 Butte About 60 yards W of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  UC1100518  Cyperus erythrorhizos Herbert L. Mason 1945-9-19 12738 Butte Gray Lodge Game Refuge n.w. Pennington; Gray Lodge Game Refuge Comment
  CHSC37082  Cyperus odoratus L. Ahart 1982-10-11 3854 Butte On bottom of deep ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CAS-BOT-BC114204  Cyperus strigosus Lowell Ahart 1982-10-11 3854 Butte West of the check-in-station, Gray Lodge, ca. 12 mi SW of Gridley. 35 Comment
  CAS-BOT-BC192656  Deschampsia danthonioides Lowell Ahart 1982-4-29 3398 Butte Ca. 0.75 mi. W of the sign-in station, Gray Lodge, ca. 12 mi. Sw of Gridley 35 Comment
  CAS-BOT-BC208612  Distichlis spicata Lowell Ahart 1977-7-24 1494 Butte Gray Lodge, 10 miles south-west of Gridley 30 Comment
  CAS-BOT-BC208613  Distichlis spicata Lowell Ahart 1981-5-16 2808 Butte Along the edge of the road, Gray Lodge Waterfowl Management Area, 11 miles SW of Gridley 35 Comment
  CHSC2141  Distichlis spicata H. Silberman; D. Isaac 1949-9-19 Butte Grey Lodge State Game Refuge. Comment
  CHSC33683  Distichlis spicata L. Ahart 1981-5-16 2808 Butte Along rd edge, Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC49538  Distichlis spicata Vernon Oswald 1987-8-17 3222 Butte Parking lot #18 on the tour route at Gray Lodge Waterfowl Management Area. 21 Comment
  CHSC115370  Downingia insignis Lowell Ahart 2015-4-24 20058 Butte Normal size plants, on dry to wet bare soil, bottom and sides (road edges) of a large duck field. 19 Comment
  CHSC33684  Downingia insignis L. Ahart 1981-5-16 2809 Butte Near rd on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC33700  Downingia insignis L. Ahart 1981-4-6 2748 Butte In a depression se of Graylodge Waterfowl Mgmt Area HQ, ca. 8 mi sw of Gridley. 35 Comment
  CHSC48010  Downingia insignis Vernon Oswald 1985-5-8 1749 Butte Graylodge Waterfowl Management Area near Parking Lot #5 on Rutherford Rd. Comment
  CHSC75262  Downingia insignis Lowell Ahart 1999-5-21 8074 Butte On the sides and bottom of a drain ditch in a pasture field, on the east side of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS123830  Downingia insignis Lowell Ahart 2015-4-24 20058 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS95868  Downingia insignis Lowell Ahart 1999-5-21 8074 Butte on the east side of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  CHSC34788  Dysphania ambrosioides L. Ahart 1981-11-6 3224 Butte Near the parking area a little w of the Graylodge Waterfowl Mgmt HQ, ca. 3/4 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  UC1100267  Echinochloa crus-galli Herbert L. Mason 1945-9-19 12741 Butte nw of Pennington Gray Lodge Game Refuge Comment
  UC1100268  Echinochloa crus-galli Herbert L. Mason 1945-9-19 12740 Butte nw Pennington; Gray Lodge Game Refuge Comment
  CHSC34025  Echinodorus berteroi L. Ahart 1981-7-26 3014 Butte Ca. 1/2 mi s of the Gray Lodge Waterfowl Mgmt. HQ, ca. 12 mi sw of Gridley. 35 Comment
  POM313038  Echinodorus berteroi H. L. Mason, Verne Grant 1946-8-7 12989 Butte Gridley road N of Butte Sink. Comment
  UC1100138  Echinodorus berteroi Herbert L. Mason and Verne Grant 1946-8-7 12989 Butte Gridley rd. n. of Butte Sink Comment
  UC1100139  Echinodorus berteroi Herbert L. Mason and Verne Grant 1946-9-4 13107 Butte 833 Canal, W. Gridley Rd. Comment
  CHSC36968  Eclipta prostrata M. S. Taylor; L. Ahart 1982-10-11 5147 Butte Graylodge Wildlife Refuge, near checking station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  CDA5097  Elaeagnus angustifolia L. Ahart, M. G. Womack 2006-8-29 13239 Butte About 20 yards east of a large canal, about 100 yards north of the Headquarters, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). Comment
  CHSC94489  Elaeagnus angustifolia Lowell Ahart; Mike G. Womack 2006-8-29 13239 Butte About 20 yards east of a large canal, about 100 yards north of the Headquarters, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). 20 Comment
  JEPS110471  Elaeagnus angustifolia Lowell Ahart, Mike G. Womack 2006-8-29 13239 Butte About 20 yards east of a large canal, about 100 yards north of the Headquarters, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 20 Comment
  RSA0011838  Elaeagnus angustifolia L. Ahart, Mike G. Womack 2006-8-29 13239 Butte About 20 yards east of a large canal, about 100 yards north of the Headquarters, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). 20 Comment
  SBBG120012  Elaeagnus angustifolia L. Ahart 2006-8-29 13239 Butte ca. 100 yards N of the Headquarters, Gray Lodge Wildlife Area 20 Comment
  CHSC114971  Elatine Lowell Ahart 2015-3-31 19983 Butte Bottom of a large duck field, 50 yards north of Parking Lot 3, about one mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6-1/2 miles (air) southwest of Gridley. 19 Comment
  CHSC114972  Elatine Lowell Ahart 2015-3-31 19985 Butte On the west side of the dirt road, about 300 yards northeast of Parking Lot 10, about 2 miles east of Rutherford Road, Gray Lodge Wildlife Area, aobut 3-1/2 miles (air) southwest of Gridley. 22 Comment
  CHSC115322  Elatine Lowell Ahart 2015-4-24 20074 Butte On the west side of the dirt road, about 300 yards northeast of Parking Lot 10, about 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. 22 Comment
  CHSC115323  Elatine Lowell Ahart 2015-4-24 20072 Butte On the west side of the dirt road, about 300 yards northeast of Parking Lot 10, about 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. 22 Comment
  CHSC115324  Elatine Lowell Ahart 2015-4-24 20065 Butte Bottom of a large duck field, 50 yards north of Parking Lot 2, about 1 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  CHSC115332  Elatine Lowell Ahart 2015-4-24 20073 Butte Normal size plants, on dry to damp bare dark soil, on the west side of the dirt road. 22 Comment
  CHSC115333  Elatine Lowell Ahart 2015-4-24 20071 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115334  Elatine Lowell Ahart 2015-4-24 20070 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115335  Elatine Lowell Ahart 2015-4-24 20069 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115337  Elatine Lowell Ahart 2015-4-24 20067 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115338  Elatine Lowell Ahart 2015-4-24 20066 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC115402  Elatine Lowell Ahart 2015-3-26 19964 Butte 50 yards north of Parking Lot 3, about one mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  JEPS123832  Elatine Lowell Ahart 2015-4-24 20067 Butte About 1 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS123906  Elatine Lowell Ahart 2015-4-24 20069 Butte About 3/4 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS123908  Elatine Lowell Ahart 2015-4-24 20072 Butte About 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  JEPS123909  Elatine Lowell Ahart 2015-4-24 20073 Butte About 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  JEPS123910  Elatine Lowell Ahart 2015-4-24 20074 Butte About 2 miles east of Pennington Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. Comment
  JEPS124168  Elatine Lowell Ahart 2015-3-26 19964 Butte About one mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS124248  Elatine Lowell Ahart 2015-3-31 19983 Butte About 1 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  CHSC82218  Elatine ambigua Lowell Ahart 2002-4-22 9522 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC82222  Elatine ambigua Lowell Ahart 2002-4-15 9496 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC82228  Elatine ambigua Lowell Ahart 2002-4-10 9476 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  POM312315  Elatine ambigua H. L. Mason, Verne Grant, C. T. Mason 1946-8-15 13052 Butte #833 Irrigation Ditch, near caretaker's house, Greylodge Game Refuge, Butte Sink. Comment
  UC1101555  Elatine ambigua Herbert L. Mason and Verne Grant 1946-8-15 13052 Butte near caretaker's house (833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  UC1101557  Elatine ambigua Herbert L. Mason 1946-8-15 13051 Butte near caretaker's house (#833 Irrigation Ditch); Butte Sink, Greylodge Game Refuge Comment
  CHSC115359  Elatine americana Lowell Ahart 2015-3-26 19966 Butte On the west side of the dirt road, about 300 yards northeast of Parking Lot 10, about 2 miles east of Rutherford Road, Gray Lodge Wildlife Area, about 3 1/2 miles (air) southwest of Gridley. 22 Comment
  CHSC82226  Elatine americana Lowell Ahart 2002-4-10 9477 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC113290  Elatine californica Lowell Ahart 2014-4-9 19349 Butte Bottom of shallow duck pond, south of Rutherford Road, about 1/4 mile southeast of the headquarters of the Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 20 Comment
  CHSC114970  Elatine californica Lowell Ahart 2015-3-31 19984 Butte Bottom of a large duck field, about 200 yards north of Parking Lot 12, on the north side of the dirst road, about 1/8 mile south of Rutherford Road, Gray Lodge Wildlife Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC115401  Elatine californica Lowell Ahart 2015-3-26 19965 Butte About 200 yards northeast of Parking Lot 12, on the north side of the dirt road, about 1/8 mile south of Rutherford Road, Gray Lodge Wildlife Area, about 7 miles (air) southwest of Gridley. 19 Comment
  JEPS122284  Elatine californica Lowell Ahart 2014-4-9 19349 Butte South of Rutherford Road, about 1/4 mile southeast of the headquarters of the Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. Comment
  JEPS124216  Elatine californica Lowell Ahart 2015-3-26 19965 Butte About 1/8 mile south Rutherford Road, Gray Lodge Wildlife Area, about 7 miles (air) southwest of Gridley. Comment
  JEPS124225  Elatine californica Lowell Ahart 2015-3-31 19984 Butte About 1/8 mile south of Rutherford Road, Gray Lodge Wildlife Area, about 7 miles (air) southwest of Gridley. Comment
  CHSC82217  Elatine chilensis Lowell Ahart 2002-4-22 9524 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC82220  Elatine chilensis Lowell Ahart 2002-4-15 9498 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC45275  Elatine heterandra Vernon Oswald 1988-4-26 3282 Butte Gray Lodge Waterfowl Management Area, on the n side of Rutherford Rd., 0.5 mi w of Pennington Rd. 21 Comment
  CHSC80523  Elatine heterandra Lowell Ahart 2001-4-15 8729 Butte A deep ditch, southeast 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. 22 Comment
  CHSC82219  Elatine heterandra Lowell Ahart 2002-4-22 9523 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC82221  Elatine heterandra Lowell Ahart 2002-4-15 9497 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC36955  Elatine rubella M. S. Taylor; Lowell Ahart, J. Jokerst 1982-4-28 4356 Butte Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/2 mi w of its jct with Pennington Rd, ca 12 mi sw of Gridley. 21 Comment
  CHSC82227  Elatine rubella Lowell Ahart 2002-4-10 9478 Butte On the bottom and sides of ponds and ditches, east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CAS-BOT-BC113637  Eleocharis acicularis Herbert L. Mason; Verne Grant 1945-7-19 12635 Butte Marshes along Butte Creek, north of Marysville Buttes, Grey Lodge Game Refuge. Comment
  CHSC115279  Eleocharis acicularis Lowell Ahart 2015-4-24 20062 Butte Bottom of a large duck field, 50 yards south east 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. Freshwater Marsh. 19 Comment
  JEPS123876  Eleocharis acicularis Lowell Ahart 2015-4-24 20062 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  CHSC46300  Eleocharis coloradoensis Vernon Oswald 1989-5-23 3781 Butte Gray Lodge Wildlife Area, in the field se of the intersection of Rutherford Rd and the road to Parking Areas 12 and 13. 19 Comment
  CHSC102733  Eleocharis macrostachya Lowell Ahart 2009-7-4 15997 Butte On the bottom of a pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC36972  Eleocharis macrostachya M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4368 Butte Graylodge Wildlife Refuge, s of parking lot 1, ca. 1/2 mi ne of Headquarters, ca. 12 mi sw of Gridley. 19 Comment
  CAS-BOT-BC213797  Elymus repens Lowell Ahart 1982-7-10 3668 Butte Found about 1/12 mile west of the Gray Lodge check in station and on the north side of the dirt road, about 12 miles southwest of Gridley 35 Comment
  CHSC36554  Elymus triticoides L. Ahart 1982-7-10 3668 Butte Ca. 1/12 mi e of checking station, Graylodge Wildlife Refuge Station, on n side of road. 35 Comment
  CHSC36547  Elytrigia pontica subsp. pontica L. Ahart 1982-7-10 3678 Butte Near dirt road, ca. 1/4 mi ne of Graylodge Wildlife Refuge Headquarters, ca. 12 mi sw of Gridley. 35 Comment
  CHSC24805  Epilobium brachycarpum E. L. Rilla 1976-9-18 29 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  CHSC37083  Epilobium brachycarpum L. Ahart; M. S. Taylor 1982-10-11 3853 Butte W of checkin station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC33677  Epilobium campestre L. Ahart 1981-5-16 2805 Butte On the Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC34015  Epilobium ciliatum subsp. ciliatum L. Ahart 1981-7-26 3003 Butte On sides of large ditch near the dirt rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Gray Lodge Waterfowl HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37112  Epilobium ciliatum subsp. ciliatum L. Ahart; M. S. Taylor 1982-10-11 3863 Butte Ca. 0.1 mi se of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD105646  Epilobium ciliatum subsp. ciliatum L. Ahart 1982-10-11 3863 Butte 1/10 mile SE of HQ, Graylodge Wildlife Refuge, ca. 12 miles SW of Gridley. 35 Comment
  CHSC75291  Epilobium cleistogamum Lowell Ahart 1999-5-21 8071 Butte Along a drain ditch in a pasture field, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS95944  Epilobium cleistogamum Lowell Ahart 1999-5-21 8071 Butte 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  CHSC36555  Epilobium pygmaeum L. Ahart 1982-7-10 3669 Butte Ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi w of Gridley. In a duck pond. 35 Comment
  CHSC37078  Erigeron bonariensis L. Ahart 1982-9-9 3771 Butte Ca. 100 m n of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37079  Erigeron canadensis L. Ahart 1982-9-9 3770 Butte Ca. 100 m n of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC37708  Eucalyptus camaldulensis M. S. Taylor 1982-5-22 4494 Butte In Graylodge Wildlife Refuge, at end of Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  CAS-BOT-BC310669  Euthamia occidentalis Lowell Ahart 1982-10-11 3860 Butte About 1/10 mile south-east of the Gray Lodge Headquarters, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  CDA34255  Euthamia occidentalis L. Ahart 2009-10-8 16413 Butte About 20 yards northeast of Parking Lot 12,Gray Lodge Waterfowl Management Area. Approximately, 7 miles (air) southwest of Gridley. Comment
  CHSC102534  Euthamia occidentalis Lowell Ahart 2009-10-8 16413 Butte On the south edge of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC37087  Euthamia occidentalis L. Ahart; M. S. Taylor 1982-10-11 3860 Butte Ca. 0.1 mi se of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  JEPS115677  Euthamia occidentalis Lowell Ahart 2009-10-8 16413 Butte On the south edge of a large ditch, on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  RSA755369  Euthamia occidentalis L. Ahart 2009-10-8 16413 Butte On the south edge of a deep large ditch on the north side of the road, about 20 yards northeast of Parking Lot 12, Gray Lodge Waterfowl Management Area, about 7 air miles southwest of Gridley. 20 Comment
  CHSC52366  Festuca arundinacea J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1547 Butte In the Grey Lodge Waterfowl Management Area, roadside. Comment
  CHSC52486  Festuca arundinacea J. D. Jokerst 1982-6-29 1546 B Butte Along the edges of various roads in the area. Grey Lodge Waterfowl Management Area, ca. 1/2 mile west of the headquarters on access road. Comment
  CHSC113277  Festuca myuros var. hirsuta Lowell Ahart 2014-4-9 19331 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  JEPS122270  Festuca myuros var. hirsuta Lowell Ahart 2014-4-9 19331 Butte West edge of Pennington Road, at intersection of Pennington Road and Colusa Highway, about 5 miles west of Gridley. Comment
  CHSC115368  Festuca myuros var. myuros Lowell Ahart 2015-4-24 20060 Butte On the sides (road edges) of a large duck field, 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
  CHSC80579  Foeniculum vulgare Lowell Ahart 2001-6-13 8816 Butte Sides 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. 22 Comment
  CHSC54322  Frankenia salina Vernon H. Oswald 1991-6-16 4665 Butte West Liberty Rd, 1.0 mile west of Pennington Rd, on the north edge of Gray Lodge. Roadside. 20 Comment
  CHSC113300  Geranium dissectum Lowell Ahart 2014-4-9 19341 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
  CHSC113303  Geranium dissectum Lowell Ahart 2014-4-9 19328 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC36292  Geranium dissectum M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4353 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, ca. 1/8 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  JEPS122280  Geranium dissectum Lowell Ahart 2014-4-9 19341 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CDA20825  Glyceria declinata M. Stewart 2006-4-17 PDR 1290445 Butte Sacramento Valley; Red Hill Ranch, 1855 Nugent Rd, Gridley. Growing in rice stubble field. Comment
  CHSC113305  Gnaphalium palustre Lowell Ahart 2014-4-9 19343 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
  CHSC115367  Gnaphalium palustre Lowell Ahart 2015-4-24 20076 Butte On the sides of a large duck field, 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
  CHSC34779  Grindelia camporum var. camporum L. Ahart 1981-11-6 3228 Butte Along edge of road that leads to Graylodge Waterfowl Mgmt HQ, ca. 1/4 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC44190  Grindelia camporum var. camporum Vernon Oswald 1988-7-7 3610 Butte Gray Lodge Waterfowl Management Area; near Rutherford Rd., 0.75 mi w of Pennington Rd. 21 Comment
  JEPS102325  Gypsophila elegans Lowell Ahart 2001-4-15 8726 Butte 4 air miles SW of Gridley (N side of dirt road E of the large pump, S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) Comment
  CHSC82092  Gypsophila elegans var. elegans Lowell 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. 22 Comment
  CHSC75336  Hainardia cylindrica Lowell Ahart 1999-5-21 8067 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  CHSC91450  Hainardia cylindrica Lowell Ahart 2005-6-12 12129 Butte Pasture field, on the north side of Evans Reimer Road, about one mile east of Pennington Road, about 4 miles (air) southwest of Gridley. 18 Comment
  JEPS107827  Hainardia cylindrica Lowell Ahart 2005-6-12 12129 Butte Pasture field, on the north side of Evans Reimer Road, about one mile east of Pennington Road, about 4 miles (air) southwest of Gridley 18 Comment
  JEPS95865  Hainardia cylindrica Lowell Ahart 1999-5-21 8067 Butte 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  SACT000814  Heleochloa schoenoides Herbert Mason 1945-9-19 Butte Secondary growth resulting from flooding land, northwest of Pennington. Comment
  CHSC36557  Helianthus annuus L. Ahart 1982-7-10 3663 Butte In parking area of checking station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC33215  Heliotropium curassavicum R. E. Preston 1981-6-19 98 Butte Gray Lodge State Wildlife Area, ca. 14.5 km ssw of Gridley. At side of road near edge of water, on levee, ca. 100 m w of Headquarters. 20 Comment
  CHSC34012  Heliotropium curassavicum L. Ahart 1981-7-26 3000 Butte Along edge of the rd, 1/10 mi w of Pennington Rd on the dirt rd that leads to the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC47989  Heliotropium curassavicum Vernon Oswald 1983-6-28 778 Butte Graylodge Waterfowl Management Area in Parking Lot 4. Comment
  CHSC45698  Helminthotheca echioides Vernon Oswald 1983-6-28 783 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Along the edge of ponds in the refuge. Comment
  CHSC37075  Hemizonia congesta subsp. luzulifolia L. Ahart 1982-9-9 3768 Butte On sides of deep ditch, ca. 100 m n of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 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
  POM312837  Heteranthera dubia H. L. Mason, Verne Grant 1946-8-14 13041 Butte Butte Sink Comment
  UC1100978  Heteranthera dubia Herbert L. Mason and Verne Grant 1946-8-14 13041 Butte Butte Sink Comment
  UCD139990  Heteranthera dubia Herbert L. Mason; Verne Grant 1946-8-14 13041 Butte Butte Sink. Comment
  CHSC33682  Hordeum depressum L. Ahart 1981-5-16 2807 Butte Along edge of rd in Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC33703  Hordeum depressum L. Ahart 1981-4-6 2744 Butte A little se of Graylodge Waterfowl Mgmt Area HQ, ca. 8 mi sw of Gridley. 35 Comment
  CHSC46275  Hordeum depressum Vernon Oswald 1989-4-20 3747 Butte Gray Lodge Wildlife Area, field on s side of Rutherford Rd and e side of the road to Parking Areas 12 and 13. 19 Comment
  CHSC53988  Hordeum depressum Vernon H. Oswald 1991-4-25 4533 Butte West Liberty Rd, 0.8 mi west of Pennington Rd, on the north edge of Gray Lodge Wildlife Area. Bordering the road near the PG and E Substation. 20 Comment
  HSC92444  Hordeum depressum L. Ahart 1981-5-16 2807 Butte Gray Lodge Waterfowl Management Area, 12 mi. SW of Gridley 30 Comment
  HSC92445  Hordeum depressum L. Ahart 1981-4-6 2744 Butte SE of the Gray Lodge Headquarters, 12 mi. SW of Gridley 30 Comment
  CAS-BOT-BC285090  Hordeum marinum subsp. gussoneanum Lowell Ahart 1982-4-29 3397 Butte Ca. 0.75 mi. W of the sign-in station, Gray Lodge, ca. 12 mi. SW of Gridley 35 Comment
  CHSC46105  Hordeum marinum subsp. gussoneanum L. Ahart; M. S. Taylor, J. D. Jokerst 1982-4-29 1537 Butte Grey Lodge Waterfowl Management Area, N. side of Rutherford Rd. ca 100 met. W. of Pennington Rd. Comment
  UCD85770  Hordeum marinum subsp. gussoneanum L. Ahart 1982-4-29 3397 Butte Graylodge Wildlife Refuge. Ca. 3/4 miles W of check-in station. Ca. 12 miles SW of Gridley. 35 Comment
  HSC23348  Juglans hindsii S. K. Ray 1971-4-27 19 Butte N side of Gridley-Colusa Hwy., 0.5 mi. W of Randolph Ave. Jct., 0.5 mi. W of Gridley Comment
  CHSC113367  Juncus bufonius var. bufonius Lowell Ahart 2014-4-9 19339 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
  CHSC36969  Juncus bufonius var. bufonius M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4366 Butte Graylodge Wildlife Refuge, s of parking lot 1, ca. 1/2 mi ne of Headquarters, ca. 12 mi sw of Gridley. 19 Comment
  CHSC44648  Juncus bufonius var. bufonius J. D. Jokerst 1982-4-29 1539 Butte Grey Lodge n of and adjacent to Rutherford Rd. ca 100 m w of Pennington Rd. Comment
  JEPS122278  Juncus bufonius var. bufonius Lowell Ahart 2014-4-9 19339 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CHSC71104  Juncus bufonius var. congestus Lowell Ahart 1998-5-2 7957 Butte Graded north side of Evens Reimer Road, about 1/4 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS94875  Juncus bufonius var. congestus Lowell Ahart 1998-5-2 7957 Butte about 5 air mi sw of Gridley (n side of Evans Reimer Road, about 1/4 mi e of Pennington Road); Evans Reimer Road 21 Comment
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  CDA30217  Juncus usitatus L. Ahart 2009-7-4 15999 Butte On the side of a large shalow pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley Comment
  CHSC102731  Juncus usitatus Lowell Ahart 2009-7-4 15999 Butte On the side of a pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC97123  Juncus usitatus Lowell Ahart 2007-7-5 14250 Butte On the south side a drainage ditch, on the north side of Evans Reimer Road, about 1 1/4 miles east of Pennington Road, about 4 3/4 miles (air) southwest of Gridley. 22 Comment
  HSC100776  Juncus usitatus Lowell Ahart 2009-7-4 15999 Butte W side of gravel road, ~100 yd. S of parking lot 3, Gray Lodge Waterfowl Management Area, 6 (air) mi. SW of Gridley. 21 Comment
  JEPS115986  Juncus usitatus Lowell Ahart 2009-7-4 15999 Butte On the side of a pond, on the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Watefowl Management Area, about 6 miles (air) southwest of Gridley 21 Comment
  JEPS120888  Juncus usitatus Lowell Ahart 2013-6-18 18808 Butte Duck field 60 yards W of Parking Lot 14, Gray Ladge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  RSA726657  Juncus usitatus L. Ahart 2007-7-5 14250 Butte Evans Reimer Road, about 1 1/4 miles east of Pennington Road, about 4 3/4 miles (air) southwest of Gridley. 23 Comment
  RSA755420  Juncus usitatus L. Ahart 2009-7-4 15999 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
  CHSC37528  Lactuca saligna M. S. Taylor; L. Ahart 1982-10-11 5151 Butte Graylodge Wildlife Refuge, near check-in station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  CHSC96595  Lamium amplexicaule Lowell Ahart 2007-3-12 13592 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS113138  Lamium amplexicaule Lowell Ahart 2007-3-12 13592 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  CAS-BOT-BC354125  Lasthenia fremontii Gordon H. True 1971-4-8 6442 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles SW of Gridley. 24 Comment
  CHSC80513  Layia chrysanthemoides Lowell Ahart 2001-4-15 8725 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. 22 Comment
  CHSC103014  Lemna minuta Lowell Ahart 2009-10-8 16410 Butte On the south side of the road, about 50 yards east of Parking Lot 15, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  JEPS116084  Lemna minuta Lowell Ahart 2009-10-8 16410 Butte On the south side of the road, about 50 yards east of Parking Lot 15, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley 19 Comment
  CHSC46256  Lepidium dictyotum var. acutidens Vernon Oswald 1989-4-20 3744 Butte Gray Lodge Wildlife Area, s side of Rutherford Rd and w side of the road to Parking Areas 12 and 13. 19 Comment
  CHSC46254  Lepidium dictyotum var. dictyotum Vernon Oswald 1989-4-20 3744 Butte Gray Lodge Wildlife Area, s of Rutherford Rd at Parking Area 5. 19 Comment
  CAS-BOT-BC89698  Lepidium latifolium Lowell Ahart 1982-7-10 3667 Butte Gray Lodge chek in station parking area, about 12 miles southwest of Gridley. 35 Comment
  CAS-BOT-BC89699  Lepidium latifolium Lowell Ahart 1981-9-10 3143 Butte Gray Lodge, southwest of Gridley. 35 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
  CHSC48335  Lepidium latifolium Vernon Oswald 1983-6-28 787 Butte Graylodge Waterfowl Management Area, in Parking Lot #3. Comment
  NY76545  Lepidium latifolium L. Ahart 1981-9-10 3143 Butte Near entrance to Gray Lodge Waterfowl Management Headquarters, west of Pennington Road, ca 1 mile southwest of Gridley, Valley Grassland 35 Comment
  CHSC33705  Lepidium perfoliatum L. Ahart 1981-4-6 2742 Butte Along edge of rd a little w of Gray Lodge Waterfowl Mgmt Area HQ, ca. 8 mi sw of Gridley. 35 Comment
  CAS-BOT-BC12845  Lepidium pinnatifidum Lowell Ahart 1982-7-10 3664 Butte Gray Lodge check in station, about 12 miles southwest of Gridley. Parking area. 35 Comment
  CAS-BOT-BC12846  Lepidium pinnatifidum Lowell Ahart 1981-7-26 3013 Butte Gray Lodge, southwest of Gridley. 35 Comment
  CHSC33262  Lepidium pinnatifidum R. E. Preston 1981-6-19 95 Butte At roadside, 300 m w of Headquarters, Gray Lodge State Wildlife Area, ca. 13.5 km ssw of Gridley. 20 Comment
  CHSC34026  Lepidium pinnatifidum L. Ahart 1981-7-26 3013 Butte Ca. 1/2 mi s of the Gray Lodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley. 35 Comment
  CHSC45097  Lepidium pinnatifidum L. Ahart 1982-7-10 3664 Butte Around parking area at checking station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD115856  Lepidium pinnatifidum L. Ahart 1982-7-10 3664 Butte Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD115866  Lepidium pinnatifidum M. S. Taylor; L. Ahart 1982-10-11 5154 Butte Graylodge Wildlife Refuge, ca. 1/4 mi s of Rutherford Rd, on rd to parking lot 5, ca. 1/4 mi se of HQ, 12 mi sw of Gridley. 19 Comment
  SACT001406  Leptochloa fascicularis Herbert Mason 1945-9-19 Butte Stem rooting at nodes from plants in flooded area, northwest of pennington. Comment
  UC1100307  Leptochloa fascicularis Herbert L. Mason 1945-9-19 12730 Butte nw Pennington; Gray Lodge Game Refuge Comment
  CAS-BOT-BC273948  Leptochloa fusca subsp. fascicularis Lowell Ahart 1983-10-11 3858 Butte West of the check-in station, Gray Lodge, about 12 mi. SW of Gridley 35 Comment
  CAS-BOT-BC273950  Leptochloa fusca subsp. fascicularis Herbert L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  CAS-BOT-BC273955  Leptochloa fusca subsp. fascicularis Herbert L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  CHSC37084  Leptochloa fusca subsp. fascicularis L. Ahart; M. S. Taylor 1982-10-11 3858 Butte Bottom of a ditch, w of check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  POM313213  Leptochloa fusca subsp. fascicularis H. L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington Comment
  UCD63845  Leptochloa fusca subsp. fascicularis H. L. Mason 1945-9-19 12730 Butte Gray Lodge Game Refuge, northwest of Pennington. Comment
  CHSC115336  Limosella acaulis Lowell Ahart 2015-4-24 20068 Butte Normal size plants, on damp bare soil, bottom of a large duck field. 19 Comment
  CHSC80561  Limosella acaulis Lowell Ahart 2001-5-3 8736 Butte On the bottom of one of the large holding ponds, 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. 22 Comment
  JEPS102311  Limosella acaulis Lowell Ahart 2001-5-3 8736 Butte 4 air miles SE of Gridley ( one of the large holding ponds on S side of Evans-Reimer Rd, 1 mi E of Pennigton Rd, Gray Lodge Waterfowl Management Area); ; <coords. cont.: NW corner> 22 Comment
  JEPS123907  Limosella acaulis Lowell Ahart 2015-4-24 20068 Butte About 3/4 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  CHSC80515  Lobularia maritima Lowell Ahart 2001-4-15 8722 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. 22 Comment
  JEPS102332  Lobularia maritima Lowell Ahart 2001-4-15 8722 Butte 4 air miles SW of Gridley (N side of the dirt road E of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road, Gray Lodge Waterfowl Management Area) 22 Comment
  UCR247563  Ludwigia decurrens M. Stewart, C. Mutters 2011-9-13 s.n. Butte south-southwest of Richvale 23 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
  CHSC61054  Ludwigia peploides subsp. peploides Vernon H. Oswald 1993-7-29 5736 Butte Gray Lodge Wildlife Management Area W of Gridley, 0.3 mi S of Rutherford Rd. on the first levee road E of the headquarters complex. In a drainage ditch. 19 Comment
  UCD66034  Ludwigia peploides subsp. peploides B. J. Grewell; R. McKee 2006-8-17 06- 42 -LU Butte Gray Lodge Wildlife Area north of Sutter Buttes. 21 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
  UCD78323  Ludwigia peploides subsp. peploides B. J. Grewell; Steve Cordes 2005-9-9 05- 24 -LU Butte Gray Lodge Wildlife Management Area, north of Sutter Buttes 20 Comment
  CHSC33674  Lupinus succulentus L. Ahart 1981-5-16 2806 Butte In Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CDA30014  Lycium barbarum L. Ahart 2009-7-4 16000 Butte At parking lot 32, Gray Lodge Waterfowl Management Area, ~ 6 air miles SW of Gridley. Comment
  CHSC102975  Lycium barbarum Lowell Ahart 2009-7-4 16000 Butte Under the palm trees, at parking lot 2, Gray Lodge Waterfowl Management Area, about 6 miles (air) southwest of Gridley. 22 Comment
  CHSC46308  Lythrum californicum Vernon Oswald 1989-5-23 3780 Butte Gray Lodge Wildlife Area just s of Rutherford Rd at Parking Area 5. 19 Comment
  CHSC36354  Lythrum hyssopifolia M. S. Taylor 1982-5-22 4502 Butte Graylodge Waterfowl Refuge, near lot 6, on Rutherford Rd, ca. 1/2 mi e of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC54341  Lythrum tribracteatum Lowell Ahart 1991-5-20 6655 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles south-west of Gridley. 19 Comment
  CHSC54342  Lythrum tribracteatum Lowell Ahart 1991-6-5 6659 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles south-west of Gridley. 19 Comment
  CHSC75289  Lythrum tribracteatum Lowell Ahart 1999-5-21 8073 Butte On the sides and bottom of a drain ditch in a pasture field, on the east side of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS120854  Lythrum tribracteatum Lowell Ahart 2013-6-18 18806 Butte About 60 yards E of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  JEPS95946  Lythrum tribracteatum Lowell Ahart 1999-5-21 8073 Butte on the east side of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  UC1586543  Lythrum tribracteatum Lowell Ahart 1991-6-5 6659 Butte about 10 mi sw of Gridley (about 1/4 mi w of Pennington Road, on n side of Rutherford Road, Gray Lodge Waterfowl Management Area); Gray Lodge Waterfowl Management Area, Rutherford Road 19 Comment
  UC1586554  Lythrum tribracteatum Lowell Ahart 1991-5-20 6655 Butte about 10 mi sw of Gridley (about 1/4 mi w of Pennington Road, on n side of Rutherford Road, Gray Lodge Waterfowl Management Area); Gray Lodge Waterfowl Management Area, Rutherford Road 19 Comment
  CHSC37279  Malva nicaeensis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4360 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, ca. 1 mi w of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC36301  Malva parviflora M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4347 Butte Graylodge Waterfowl Refuge, near lot 5, ca. 1 mi s of HQ, ca. 12 mi sw of Gridley. 19 Comment
  CHSC36960  Malva parviflora M. S. Taylor; L. Ahart, J. D. Jokerst 1982-4-28 4360 Butte Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/4 mi w of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC33214  Malvella leprosa R. E. Preston 1981-6-19 96 Butte In and along road, atop levee; ca. 0.8 km s of Headquarters, Grey Lodge State Wildlife Area, ca. 14.5 km ssw of Gridley. 20 Comment
  CHSC34011  Malvella leprosa L. Ahart 1981-7-26 3012 Butte Ca. 1/2 mi s of Graylodge Waterfowl Mgmt HQ, ca. 12 mi sw of Gridley; near the equipment barn. 35 Comment
  CHSC45330  Malvella leprosa Vernon Oswald 1983-6-28 782 Butte Graylodge Waterfowl Management Area near Parking Lot 16. Comment
  CHSC36288  Marrubium vulgare M. S. Taylor 1982-5-22 4506 Butte Graylodge Waterfowl Refuge, near lot 6, on Rutherford Rd, ca. 1/2 mi e of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC82398  Marsilea vestita subsp. vestita Lowell Ahart 2002-5-15 9659 Butte On the bottom and sides of a pond, about 100 yards east of Parking Lot 10, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC36305  Matricaria discoidea M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4347 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CAS-BOT-BC348265  Matricaria occidentalis M. S. Taylor; L. Ahart; J. Jokerst 1982-4-28 4359 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley 21 Comment
  CHSC36289  Matricaria occidentalis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4359 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC46112  Matricaria occidentalis J. D. Jokerst 1982-4-29 1541 Butte Grey Lodge Waterfoul Management Area. Along the edge of Rutheford Rd. where it turns 90 degrees to the north in the center of section 14. Comment
  CHSC46104  Medicago polymorpha J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1542 Butte Grey Lodge Waterfoul Management Area along Rutheford Rd. where it turns 90 degrees to the north. Comment
  CHSC36549  Melilotus albus L. Ahart 1982-7-10 3670 Butte On bottm of a dry duck pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 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
  CHSC24804  Melilotus indicus E. L. Rilla 1976-9-18 28 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  CHSC33678  Melilotus indicus L. Ahart 1981-5-16 2797 Butte Along the edge of dirt rd on Gray-Lodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC80644  Melilotus officinalis Lowell Ahart 2001-6-13 8817 Butte On the sides of the dirt road east of the large pump, on the south side of Evans-Reimer Road, about 1 miles east of Pennington Road, Gray Lodge Waterfowl Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CHSC113293  Mimulus guttatus Lowell Ahart 2014-4-9 19344 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
  CAS-BOT-BC83266  Myosurus minimus Lowell Ahart 1981-4-6 2746 Butte Southeast of the Gray Lodge Headquarters, ca. 8 miles southwest of Gridley. 35 Comment
  CHSC43727  Myosurus minimus Lowell Ahart 1981-4-6 2747 Butte South-east of the Gray Lodge Headquarters, about 8 miles south-west of Gridley. 28 Comment
  CHSC54344  Myosurus minimus subsp. apus Lowell Ahart 1991-5-20 6656 Butte On the north side of Rutherford Road, Gray Lodge Waterfowl Management Area, about 1/4 mile west of Pennington Road, about 10 miles south-west of Gridley. 19 Comment
  UC1586627  Myosurus minimus subsp. apus Lowell Ahart 1991-5-20 6656 Butte 10 mi sw Gridley (1/4 mi w of Pennington Road,, on n side of Rutherford road, Gray Lodge Waterfowl Management Area) 19 Comment
  CHSC46103  Myosurus minimus subsp. minimus J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1540 Butte Grey Lodge, north side of Rutheford Rd, ca. 100 meters West of Pennington Rd. Comment
  CHSC33701  Myosurus sessilis L. Ahart 1981-4-6 2747 Butte SE of Gray Lodge Waterfowl Mgmt Area HQ, ca. 8 mi sw of Gridley. 35 Comment
  CDA7128  Myriophyllum aquaticum L. P. Janeway, B. Castro, L. Archambault 2006-1-16 8554 Butte Sacramento Valley; Gray Lodge Wildlife Area; between the main waterfowl viewing parking area and the headquarters area. Comment
  CHSC94794  Myriophyllum aquaticum L. P. Janeway; B. Castro, Laurie Archambault 2006-1-16 8554 Butte Sacramento Valley. Gray Lodge Wildlife Area; in shallow sluggish canal between the main waterfowl viewing parking area and the headquarters area. 18 Comment
  RSA0025076  Myriophyllum aquaticum L. P. Janeway, B. Castro, Laurie Archambault 2006-1-16 8554 Butte Sacramento Valley. Gray Lodge Wildlife Area; in shallow sluggish canal between the main waterfowl viewing parking area and the headquarters area. 18 Comment
  CHSC35960  Myriophyllum spicatum M. S. Taylor 1982-5-22 4497 Butte Graylodge Waterfowl Refuge, aquatic in quiet water at end of Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  CHSC46875  Myriophyllum spicatum Vernon Oswald 1989-9-6 3986 Butte West end of West Liberty Rd along the n boundary of Gray Lodge Wildlife Area. 19 Comment
  POM312985  Najas graminea H. L. Mason, Verne Grant 1946-8-15 13047 Butte #833 Irrigation Ditch, near caretaker s house, Greylodge Game Refuge, Butte Sink. Comment
  UC1100017  Najas graminea Verne Grant and Herbert L. Mason 1946-8-15 13047 Butte Greylodge Game Refuge, near caretaker's house Greylodge Game Refuge. Comment
  UC1100014  Najas guadalupensis Herbert L. Mason, Verne Grant 1946-8-15 13053 Butte Butte Sink, Greylodge Game Refuge, Irrigation Ditch #833, near caretaker's house Butte Sink; , Greylodge Game Refuge, Irrigation Ditch #833 Comment
  UC1100015  Najas guadalupensis Herbert L. Mason, Verne Grant 1946-8-14 13043 Butte Butte Sink Comment
  CHSC75294  Navarretia leucocephala subsp. leucocephala Lowell Ahart 1999-5-21 8072 Butte Along a drain ditch in a pasture field, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS95795  Navarretia leucocephala subsp. leucocephala Lowell Ahart 1999-5-21 8072 Butte about 5 miles (air) southwest of Gridley; ; 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  JEPS95867  Navarretia leucocephala subsp. leucocephala Lowell Ahart 1999-5-21 8072 Butte about 5 miles (air) southwest of Gridley; ; 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  RSA523836  Orthocarpus erianthus Gordon H. True Jr. 1936-3-26 375 Butte Gray Lodge Refuge. 23 Comment
  CAS-BOT-BC77561  Peritoma arborea var. globosa M. S. Taylor; L. Ahart; J. Jokerst 1982-4-28 4377 Butte Headquarters of Graylodge Wildlife Refuge, ca. 12 mi SW of Gridley 19 Comment
  CHSC37113  Persicaria hydropiper L. Ahart; M. S. Taylor 1982-10-11 3864 Butte Along edges of large duck pond, ca. 0.1 mi w of Graylodge HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC75338  Phalaris lemmonii Lowell Ahart 1999-5-21 8069 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  CAS-BOT-BC250703  Phalaris paradoxa Lowell Ahart 1981-5-16 2801 Butte In hole formed from irrig. pump, Gray Lodge Waterfowl Management Area, 11 mi. SW of Gridley 35 Comment
  CHSC2174  Phalaris paradoxa H. Silberman; D. Isaac 1949-5-19 Butte Grey Lodge State Game Refuge. 24 Comment
  CHSC33691  Phalaris paradoxa L. Ahart 1981-5-16 2801 Butte Along edge of dirt rd on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC75339  Phalaris paradoxa Lowell Ahart 1999-5-21 8068 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS95866  Phalaris paradoxa Lowell Ahart 1999-5-21 8068 Butte 50 yards north of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  HSC94024  Phoradendron serotinum subsp. macrophyllum Mary Drumm 1996-3-17 19 Butte Gray Lodge State Wildlife Refuge near parking lot 14 18 Comment
  CHSC33216  Phyla nodiflora var. rosea R. E. Preston 1981-6-19 97 Butte On bank of canal, ca. 0.8 km s of Headquarters, Gray Lodge State Wildlife Area, ca. 14.5 km ssw of Gridley. 20 Comment
  CHSC80511  Pilularia americana Lowell Ahart 2001-4-15 8727 Butte Southeast 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. 22 Comment
  CHSC46069  Plagiobothrys leptocladus M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4349 Butte Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/8 mi w of its jct with Pennington Rd at check-in station, ca. 12 mi sw of Gridley. 21 Comment
  CHSC46771  Plagiobothrys stipitatus Lowell Ahart 1982-4-29 3387 Butte On the bottom of a small vernal pool, near the check in station, Gray Lodge, about 12 miles south-west of Gridley. 30 Comment
  UC1537691  Plagiobothrys stipitatus Gordon H. True Jr. 1936-3-26 377 Butte Gray Lodge Refuge 22 Comment
  CHSC115366  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-24 20063 Butte Bottom and sides of a large duck field, 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
  CHSC75256  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1999-5-21 8075 Butte On the sides an bottom of a drain ditch in a pasture field, on the east side of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS123826  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-24 20063 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS123905  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-24 20063 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  JEPS95869  Plagiobothrys stipitatus var. micranthus Lowell Ahart 1999-5-21 8075 Butte on the east side of Evans Reimer Road; about 7/8 mile east of Pennington Road; about 5 miles (air) southwest of Gridley 21 Comment
  CHSC113298  Planodes virginica Lowell Ahart 2014-4-9 19325 Butte Rice field, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC82239  Planodes virginica Lowell Ahart 2002-3-28 9455 Butte In a rice field, on the north side of Gridley Road, about 5 miles west of Gridley. 21 Comment
  JEPS122274  Planodes virginica Lowell Ahart 2014-4-9 19325 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  RSA0118696  Planodes virginica Lowell A. Ahart 2014-4-9 19325 Butte Rice field, near the pump, on the north side of Colusa Highway, about 0.4 mile east of the intersection of Pennington Road and Colusa Highway, about 5.5 miles west of Gridley. 23 Comment
  CHSC33702  Plantago bigelovii L. Ahart 1981-4-6 2745 Butte A little SE of Graylodge Waterfowl Mgmt Area HQ, ca. 8 mi swof Gridley. 35 Comment
  CHSC33680  Plantago coronopus L. Ahart 1981-5-16 2795 Butte Along edge of dirt roads on Gray Lodge Waterfowl Mgmt Area, 1 mi sw of Gridley. 35 Comment
  CHSC36306  Plantago coronopus M. S. Taylor 1982-4-28 4346 Butte Graylodge Waterfowl Refuge roadsides, n side of Rutherford Rd, just w of Pennington Rd, ca. 12 mi sw of Gridley. 70 ft. 21 Comment
  CHSC113297  Poa annua Lowell Ahart 2014-4-9 19324 Butte Rice field, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  JEPS122268  Poa annua Lowell Ahart 2014-4-9 19324 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  UC1509659  Polygonum hydropiper L. Ahart 1982-10-11 3864 Butte large duckpond ca 1/10 mi w Graylodge Wildlife Refuge (ca 12 mi sw of Gridley) 35 Comment
  CHSC24813  Polygonum persicaria E. L. Rilla 1976-9-18 31 Butte .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72 1 mi directly w of collection area. 21 Comment
  UC1191264  Polygonum punctatum Herbert L. Mason and Verne Grant 1946-9-4 13109 Butte West Gridley Rd 833 Canal Comment
  JEPS103559  Polypogon interruptus Lowell Ahart 2002-4-15 9492 Butte On the E side of a canal bank, on the W side of Faris Road, 3 miles W of West Biggs Gridley Road, ca 3 miles (air) SW of Biggs. 24 Comment
  CHSC115371  Polypogon monspeliensis Lowell Ahart 2015-4-24 20059 Butte Small size plants, on dry bare soil, side (road edges) of a large duck field. 19 Comment
  CHSC46106  Polypogon monspeliensis L. Ahart; M. S. Taylor, J. D. Jokerst 1982-4-29 1536 Butte Just north of Rutherford Rd. ca 100 met. west of its junction with Pennington Rd. Grey Lodge Waterfowl Management Area. Comment
  CHSC75341  Polypogon monspeliensis Lowell Ahart 1999-5-21 8070 Butte In a pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS123829  Polypogon monspeliensis Lowell Ahart 2015-4-24 20059 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  RSA320498  Potamogeton crispus M. S. Taylor 1982-5-22 4496 Butte Graylodge Wildlife Refuge, at end of West Liberty Road, ca. 12 miles southwest of Gridley. 19 Comment
  POM312998  Potamogeton foliosus H. L. Mason, Verne Grant 1946-8-8 12999 Butte Reclamation Ditch 833 on West Gridley Road near Pennington Road. Comment
  UC1099871  Potamogeton foliosus Herbert L. Mason, Verne Grant 1946-8-8 12999 Butte near Pennington Road (Reclamation Ditch 833 on West Gridley Road); Reclamation Ditch 833 Comment
  UC1100068  Potamogeton nodosus Verne Grant and Herbert L. Mason 1946-8-7 12990 Butte Gridley Road n of Butte Sink Comment
  UC1100069  Potamogeton nodosus Herbert L. Mason, Verne Grant 1946-8-14 13042 Butte Butte Sink Comment
  UC1099837  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-8 13000 Butte Reclamation Ditch 833 on West Gridley Road near Pennington Road Comment
  UC1099839  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-14 13045 Butte Butte Sink Comment
  CHSC37530  Proboscidea lutea M. S. Taylor; L. Ahart 1982-10-11 5158 Butte Graylodge Wildlife Refuge, just se of HQ quad, 12 mi sw of Gridley. 19 Comment
  CDA27702  Prosopis glandulosa var. torreyana L. Ahart, M. G. Womack 2006-8-29 13240 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). Comment
  CHSC94460  Prosopis glandulosa var. torreyana Lowell Ahart; Mike G. Womack 2006-8-29 13240 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). 21 Comment
  JEPS110470  Prosopis glandulosa var. torreyana Lowell Ahart, Mike G. Womack 2006-8-29 13240 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 21 Comment
  CHSC94461  Prunus Lowell Ahart; Mike G. Womack 2006-8-29 13241 Butte Near pump 24, about 1/4 mile southwest of Parking Lot 9, about 1 1/2 miles east of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area). 21 Comment
  JEPS110171  Prunus ilicifolia subsp. ilicifolia Lowell Ahart, Mike G. Womack 2006-8-29 13241 Butte near pump 24, about 1/4 mile southwest of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area) 21 Comment
  CAS-BOT-BC239826  Puccinellia simplex Lowell Ahart 1982-4-29 3396 Butte Ca. 0.75 mi. W of the sign-in station, Gray Lodge, ca. 12 mi. SW of Gridley 35 Comment
  CHSC36068  Puccinellia simplex J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1545 Butte Grey Lodge east of dirt road z 1/4 mile S of Rutherford Road. Comment
  CHSC47637  Puccinellia simplex Lowell Ahart 1982-4-29 3396 Butte Near the dirt road, about 3/4 mile west of the sign in station, Gray Lodge, about 12 miles south-west of Gridley. 30 Comment
  CHSC53990  Puccinellia simplex Vernon H. Oswald 1991-4-25 4532 Butte West Liberty Rd, 0.8 mi west of Pennington Rd, on the north edge of Gray Lodge Wildlife Area. Flat on the south side of the road just west of the PG and E Substation. 20 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
  CDA3956  Rosa eglanteria L. Ahart 2002-5-15 9660 Butte About 100 yards southwest of Parking Lot 10, about 100 yards northeast of the buildings, on the south side of the dirt road, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. Comment
  JEPS103498  Rosa eglanteria Lowell Ahart 2002-5-15 9660 Butte 100 yds SW of Parking Lot 10, 100 yds NE of the buildings, S side of dirt road, Gray Lodge State Wildlife Management Area, 4 mi SW of Gridley 22 Comment
  CHSC43946  Rosa multiflora Vernon Oswald 1988-4-26 3283 Butte Gray Lodge Waterfowl Management Area, just s of Rutherford Rd., 0.5 mi w of Pennington Rd. On the ege of a ditch. 21 Comment
  CHSC71190  Rosa multiflora Lowell Ahart 1998-5-2 7958 Butte On the south side of Evans Reimer Road, about 1/4 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS94699  Rosa multiflora Lowell Ahart 1998-5-2 7958 Butte about 5 air mi sw of Gridley (on s side of Evans Reimer Road, about 1/4 mi e of Pennington Road); Evans Reimer Road 21 Comment
  JEPS94876  Rosa multiflora Lowell Ahart 1998-5-2 7958 Butte about 5 air mi sw of Gridley (on s side of Evans Reimer Road, about 1/4 mi e of Pennington Road); Evans Reimer Road 21 Comment
  CHSC82410  Rosa rubiginosa Lowell Ahart 2002-5-15 9660 Butte About 100 yards southwest of Parking Lot 10, about 100 yards northeast of the buildings, on the south side of the dirt road, Gray Lodge State Wildlife Management Area, about 4 miles (air) southwest of Gridley. 22 Comment
  CAS-BOT-BC274227  Rostraria cristata Lowell Ahart 1982-4-29 3386 Butte Near the sign in station, Gray Lodge, about 12 miles south-west of Gridley 35 Comment
  UC1191573  Rotala ramosior Herbert L. Mason, Verne Grant 1946-9-4 13110 Butte 833 Canal, West Gridley Road West Gridley Road; 833 Canal, West Gridley Road Comment
  UC1191575  Rotala ramosior Herbert L. Mason, Verne Grant 1946-8-15 13048 Butte Butte Sink, Greylodge Game Refuge, #833 Irrigation Ditch, near caretakers house Butte Sink; , Greylodge Game Refuge, #833 Irrigation Ditch Comment
  CAS-BOT-BC156611  Rubus bifrons M. S. Taylor 1982-5-22 4506 A Butte Graylodge Waterfowl Refuse, in vicinity of parking lot 6, on Rutherford Rd, ca. 1/2 mi e of its jct with Pennington Rd, ca. 12 mi sw of Gridley 21 Comment
  JEPS120853  Rumex conglomeratus Lowell Ahart 2013-6-18 18805 Butte About 60 yards W of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  CHSC33679  Rumex crispus L. Ahart 1981-5-16 2810 Butte In one of the drying duck ponds on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC103146  Rumex dentatus Lowell Ahart 2009-7-4 15998 Butte On the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Waterflowl Management Area, about 6 miles (air) southwest of Gridley. 21 Comment
  CHSC33685  Rumex dentatus L. Ahart 1981-5-16 2804 Butte In low places on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  JEPS115724  Rumex dentatus Lowell Ahart 2009-7-4 15998 Butte On the west side of the gravel road, about 100 yards south of parking lot 3, Gray Lodge Waterflowl Management Area, about 6 miles (air) southwest of Gridley 21 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
  CHSC45385  Rumex dentatus subsp. klotzschianus Vernon Oswald 1985-5-8 1750 Butte Graylodge Waterfowl Management Area near Parking Lot #5 on Rutherford Rd. Common in the bottom of a drying pond which was vernally wet. Comment
  CDA42961  Rumex fueginus L. Ahart 2013-6-18 18804 Butte About 60 yards west of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 miles (air) southwest of Gridley. Comment
  JEPS120852  Rumex fueginus Lowell Ahart 2013-6-18 18804 Butte About 60 yards W of Parking Lot 14, Gray Lodge Wildlife Management Area, about 7 air miles SW of Gridley. Comment
  CHSC35703  Rumex salicifolius var. triangulivalvis J. D. Jokerst; M. S. Taylor, L. Ahart 1982-4-29 1546 Butte Grey Lodge Waterfowl Management Area, S of Rutherford Rd on dirt road. Comment
  CHSC45228  Rumex stenophyllus L. Ahart 1982-7-10 3676 Butte Ca. 1/8 mi se of HQ, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  CHSC36956  Sagina apetala M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4365 Butte Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1/2 mi w of its jct with Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CAS-BOT-BC445727  Sagittaria latifolia Herbert L. Mason; Verne Grant 1946-8-14 13040 Butte Butte Sink Comment
  UC935789  Sagittaria latifolia Herbert L. Mason and Verne Grant 1946-8-14 13040 Butte Butte Sink Comment
  CHSC24811  Sagittaria montevidensis subsp. calycina E. L. Rilla 1976-9-18 26 Butte Marsh, .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72, 1 mi directly w of collection area. 21 Comment
  CAS-BOT-BC267086  Sagittaria sanfordii Herbert L. Mason 1946-8-8 13001 Butte Butte Sink. West Gridley road, 1 mile W of Gridley - Pennington highway 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
  UCD138071  Sagittaria sanfordii Herbert L. Mason; Verne Grant 1946-8-8 13001 Butte West Gridley road one mile west of Gridley - Pennington Highway. Comment
  CAS-BOT-BC103735  Salix exigua M. S. Taylor 1982-5-22 4498 Butte Graylodge Wildlife Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. Pennington quad. 19 Comment
  CAS-BOT-BC107832  Salix gooddingii Gordon H. True 1971-4-8 6455 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles southwest of Gridley 24 Comment
  CAS-BOT-BC107833  Salix gooddingii Gordon H. True 1971-4-8 6454 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles southwest of Gridley 24 Comment
  CHSC37756  Salix gooddingii J. D. Jokerst; L. Ahart, M. S. Taylor 1982-4-29 1543 Butte Grey Lodge Waterfoul Management Area. Along the road running north of Rutherford Rd. Comment
  CHSC37778  Salix gooddingii M. S. Taylor 1982-5-22 4498 Butte Graylodge Wildlife Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley. 19 Comment
  CAS-BOT-BC104072  Salix hindsiana Gordon H. True 1971-4-8 6452 Butte Gray Lodge Wildlife Area, Valley Grassland, 7 miles southwest of Gridley 24 Comment
  CAS-BOT-BC283623  Schedonorus pratensis Lowell Ahart 1982-4-29 3399 Butte Along side of the dirt road, W of the Gray Lodge Headquarters ca 0.25 mile, Gray Lodge, ca 12 miles SW of Gridley 35 Comment
  CAS-BOT-BC111370  Schoenoplectus acutus var. occidentalis M. S. Taylor; Lowell Ahart; James D. Jokerst 1982-4-28 4367 Butte Pennington quad. Graylodge Waterforl Refuge, s side of lot 1. 19 Comment
  CAS-BOT-BC111375  Schoenoplectus acutus var. occidentalis Herbert L. Mason; Verne Grant 1946-8-7 12993 Butte Big pond near river, Grey Lodge Game Refuge; Gridley Road north of Butte Sink. Comment
  CHSC24812  Schoenoplectus acutus var. occidentalis E. L. Rilla 1976-9-18 27 Butte Freshwater Marsh, .5 mi s of Gridley Rd on Pennington Rd in the Gray Lodge Waterfowl Management Area. Bench Marker 72 1 mi directly w of collection area. 21 Comment
  CHSC36302  Schoenoplectus acutus var. occidentalis M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4367 Butte Graylodge Waterfowl Refuge, s side of lot 1, ca. 1/2 mi ne of HQ, ca. 12 mi sw of Gridley. 19 Comment
  CHSC36552  Schoenoplectus acutus var. occidentalis L. Ahart 1982-7-10 3674 Butte On bottom of a dry duck pond, ca. 1/4 mi se of Headquarters, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UCD50073  Schoenoplectus acutus var. occidentalis Herbert L. Mason; Verne Grant 1946-8-7 12993 Butte Big pond near river, Grey Lodge Game Refuge; Gridley Road north of Butte Sink, Butte County. Comment
  UC1100776  Scirpus acutus var. occidentalis Herbert L. Mason, Verne Grant 1946-8-7 12993 Butte Gridley Road n Butte Sink (Big Pond near river, Grey Lodge Game Refuge); Grey Lodge Game Refuge, n of Butte Sink Comment
  UC1100855  Scirpus maritimus Herbert L. Mason 1945-9-19 12732 Butte nw Pennington (Gray Lodge Game Refuge); , nw of Pennington Comment
  UC1100919  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house; Butte Sink, Greylodge Game Refuge Comment
  UC1100920  Scirpus maritimus Herbert L. Mason, Verne Grant 1946-8-15 13046 Butte Greylodge Game Refuge near caretaker's house (Butte Sink); , Greylodge Game Refuge Comment
  CHSC80571  Secale cereale Lowell Ahart 2001-5-10 8741 Butte On the sides 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. 22 Comment
  CHSC113379  Senecio vulgaris Lowell Ahart 2014-4-9 19329 Butte Rice field road, near the pump, on the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC36304  Senecio vulgaris M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4354 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, w of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  JEPS122269  Senecio vulgaris Lowell Ahart 2014-4-9 19329 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  UC1100459  Setaria pumila Herbert L. Mason and Verne Grant 1946-9-27 13131 Butte Pennington-Gridley Rd. Butte Sink Comment
  JEPS103541  Sibara virginica Lowell Ahart 2002-3-28 9455 Butte In a rice field, on the N side of Gridley Road, ca 5 miles W of Gridley. 21 Comment
  CHSC80519  Sinapis alba Lowell Ahart 2001-4-15 8723 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. 22 Comment
  JEPS102307  Sinapis alba Lowell Ahart 2001-4-15 8723 Butte 4 air miles SW of Gridley (N side of the dirt road E of the large pump, S side of Evans-Reimer Road, 1 mi E of Pennington Road, Gray Lodge Waterfowl Management Area) 22 Comment
  CHSC113213  Sinapis arvensis Lowell Ahart 2014-4-9 19337 Butte Near 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
  JEPS122256  Sinapis arvensis Lowell Ahart 2014-4-9 19337 Butte West end of West Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  CHSC37276  Sonchus asper M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4351 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, ca. 1.8 mi w of its jct with Pennington Rd at the checking station, ca. 12 mi sw of Gridley. 21 Comment
  CHSC113306  Sonchus asper subsp. asper Lowell Ahart 2014-4-9 19334 Butte West edge of Pennington Road, at the intersection of Pennington Road and Colusa Highway, about 6 miles west of Gridley. 22 Comment
  CHSC37529  Sonchus tenerrimus M. S. Taylor; L. Ahart 1982-10-11 5050 Butte Graylodge Wildlife Refuge, near check-in station, sw jct of Pennington and Rutherford Rds, ca. 12 mi sw of Gridley. 21 Comment
  CHSC33675  Spergularia bocconi L. Ahart 1981-5-16 2799 Butte Along edge of dirt roads on Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  CHSC115364  Spergularia marina Lowell Ahart 2015-4-24 20061 Butte On the sides (road edges) of a large duck field, 50 yards south east of Parking Lot 1, about 1 1/4 miles north of Rutherford Road, Gray Lodge Wildelife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  CHSC33704  Spergularia marina L. Ahart 1981-4-6 2743 Butte On Gray Lodge Waterfowl Mgmt Area, w of the HQ, ca. 8 mi sw of Gridley. 35 Comment
  CHSC37436  Spergularia marina M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4348 Butte Graylodge Wildlife Refuge, n side of Rutherford Rd, ca. 1.8 mi w of its jct with Pennington Rd at the checking station, ca. 12 mi sw of Gridley. 21 Comment
  CHSC48271  Spergularia marina V. Oswald 1988-5-25 3341 Butte Gray Lodge Waterfowl Management Area, ca. 0.25 mi s of Rutherford Rd., 0.5 mi w of Pennington Rd. Bottom of a pond. 21 Comment
  JEPS123828  Spergularia marina Lowell Ahart 2015-4-24 20061 Butte About 1 1/4 miles north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  CHSC96550  Stellaria media Lowell Ahart 2007-3-12 13590 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS113137  Stellaria media Lowell Ahart 2007-3-12 13590 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  CHSC96617  Stellaria pallida Lowell Ahart 2007-3-12 13591 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS113238  Stellaria pallida Lowell Ahart 2007-3-12 13591 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  CHSC34776  Suaeda calceoliformis L. Ahart 1981-11-6 3227 Butte On banks of small ditch, w of parking area, e of Graylodge Waterfowl Mgmt HQ, ca. 1/2 mi w of Pennington Rd, ca. 12 mi sw of Gridley. 35 Comment
  CHSC46873  Suaeda calceoliformis Vernon Oswald 1989-9-6 3981 Butte West Liberty Rd along the n boundary of Gray Lodge Wildlife Area, 0.8 mi w of Pennington Rd. Roadside drainage. 19 Comment
  CHSC46985  Suaeda calceoliformis Vernon Oswald 1989-6-26 3816 Butte West Liberty Rd along north boundary of Gray Lodge Wildlife Area, 0.8 mi w of Pennington Rd. Ditches and roadside drainages. 198 Comment
  UC1490565  Suaeda calceoliformis Lowell Ahart 1981-11-6 3227 Butte about 12 mi sw Gridley (e of Gray Lodge Waterfowl Management Headquarters, w of parking area, about 0.5 mi w of Pennington Road,) 35 Comment
  CHSC45524  Suaeda occidentalis Lowell Ahart 1984-11-6 3227 Butte On the banks of a small ditch, west of the parking area, east of the Gray Lodge Waterfowl Management Area Headquarters, about 1/2 mile west of Pennington Road, about 12 miles south-west of Gridley. 30 Comment
  CAS-BOT-BC98326  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1981-9-10 3150 Butte Gray Lodge, SW of Gridley. 35 Comment
  CHSC34103  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1981-9-10 3150 Butte Along edge of a ditch near the entrance to the Graylodge Waterfowl Mgmt HQ, W of Pennington Rd, ca 12 mi SW of Gridley. 35 Comment
  CHSC37076  Symphyotrichum subulatum var. parviflorum Lowell Ahart 1982-9-9 3767 Butte Ca 100 m N of check-in station, Graylodge Wildlife Refuge, ca 12 mi SW of Gridley. 35 Comment
  CAS-BOT-BC202039  Thinopyrum ponticum John H. Thomas 1980-12-6 20205 Sutter Greylodge Bird Refuge, north of Sutter Buttes Comment
  CHSC36287  Tribulus terrestris M. S. Taylor 1982-5-22 4505 Butte Graylodge Waterfowl Refuge, in lot 6, on Rutherford Rd, ca. 1/2 mi e of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC46519  Tribulus terrestris Lowell Ahart 1982-7-10 3665 Butte In the parking area at the Gray Lodge check in station, about 12 miles south-west of Gridley. 30 Comment
  UCD107382  Tribulus terrestris L. Ahart 1982-7-10 3665 Butte In parking area at check-in station, Graylodge Wildlife Refuge, ca. 12 mi. sw of Gridley. Comment
  CHSC80550  Trifolium alexandrinum Lowell Ahart 2001-5-10 8738 Butte On the sides 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. 22 Comment
  CHSC80527  Trifolium bifidum var. decipiens Lowell Ahart 2001-4-15 8724 Butte On the south side of the second dirt road south and then 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. 22 Comment
  JEPS102331  Trifolium bifidum var. decipiens Lowell Ahart 2001-4-15 8724 Butte 4 air miles SW of Gridley (S side of the second dirt road SE of the large pump, S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) 22 Comment
  CHSC114958  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte On the west side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 miles (air) west of Gridley. 22 Comment
  CHSC57811  Trifolium fucatum Vernon H. Oswald 1992-5-4 4930 Butte Gray Lodge Waterfowl Management Area west of Gridley. Scattered plants in a grassy field bordering the N side of Rutherford Rd., 0.4 mi W of Pennington Rd. 21 Comment
  CHSC75274  Trifolium fucatum Lowell Ahart 1999-5-21 8066 Butte Low area in pasture, 50 yards north of Evans Reimer Road, about 7/8 mile east of Pennington Road, about 5 miles (air) southwest of Gridley. 21 Comment
  JEPS124170  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte About 1/4 mile north of Gridley Road (west), about 4 miles (air) west of Gridley. Comment
  UCSC010328  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte West side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010329  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte West side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010330  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte West side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010331  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte On the west side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010332  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte West side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010333  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte On the west side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  UCSC010334  Trifolium fucatum Lowell Ahart 2015-3-26 19968 Butte On the west side of Faris Road, about 1/4 mile north of Gridley Road (west), about 4 air miles west of Gridley. 23 Comment
  CHSC35314  Triphysaria eriantha L. Ahart 1982-3-13 3253 Butte Near dirt road to Graylodge HQ, ca. 12 mi sw of Gridley. 35 Comment
  UC1537447  Triphysaria eriantha subsp. eriantha Gordon H. True Jr. 1936-3-26 375 Butte Grey Lodge Refuge 22 Comment
  CHSC35961  Verbascum blattaria M. S. Taylor 1982-5-22 4500 Butte Graylodge Waterfowl Refuge, ca. 1/4 mi n of Checking Station on w side of Pennington Rd, ca. 12 mi sw of Gridley. 21 Comment
  CHSC36536  Verbena litoralis L. Ahart 1982-7-10 3677 Butte Ca. 1/2 mi e of Graylodge Wildlife Refuge Headquaters, ca. 12 mi sw of Gridley. 35 Comment
  CHSC49453  Verbena litoralis Vernon Oswald 1983-6-28 788 Butte Graylodge Waterfowl Management Area, near Parking Lot 11. Comment
  CHSC115365  Veronica catenata Lowell Ahart 2015-4-24 20064 Butte Bottom and sides of a large duck field, 50 yards southeast of Parking Lot 2, about 1 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. 19 Comment
  JEPS123827  Veronica catenata Lowell Ahart 2015-4-24 20064 Butte About 1 mile north of Rutherford Road, Gray Lodge Wildlife Area, about 6 1/2 miles (air) southwest of Gridley. Comment
  CHSC113294  Veronica peregrina subsp. xalapensis Lowell Ahart 2014-4-9 19340 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
  CHSC113295  Veronica peregrina subsp. xalapensis Lowell Ahart 2014-4-9 19327 Butte Rice field, near the pump, on the north side of Colusa Highway, about 4/10 of a mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. 22 Comment
  CHSC33676  Veronica peregrina subsp. xalapensis L. Ahart 1981-5-16 2798 Butte Graylodge Waterfowl Mgmt Area, 11 mi sw of Gridley. 35 Comment
  JEPS122265  Veronica peregrina subsp. xalapensis Lowell Ahart 2014-4-9 19340 Butte West end of Liberty Road, about one mile (air) south of Colusa Highway, about 7 miles (air) southwest of Gridley. Comment
  JEPS122271  Veronica peregrina subsp. xalapensis Lowell Ahart 2014-4-9 19327 Butte On the north side of Colusa Highway, about 4/10 mile east of the intersection of Pennington Road and Colusa Highway, about 5 1/2 miles west of Gridley. Comment
  RSA0118755  Veronica peregrina subsp. xalapensis Lowell A. Ahart 2014-4-9 19340 Butte 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. 20 Comment
  CHSC96596  Veronica persica Lowell Ahart 2007-3-12 13593 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley. 21 Comment
  JEPS113140  Veronica persica Lowell Ahart 2007-3-12 13593 Butte At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley 21 Comment
  CHSC35959  Vicia varia subsp. varia M. S. Taylor; L. Ahart, J. Jokerst 1982-4-28 4352 Butte Graylodge Waterfowl Refuge, n side of Rutherford Rd, ca. 1/8 mi w of its jct with Pennington Rd at the checking station, ca. 12 mi sw of Gridley. 21 Comment
  CHSC80552  Vicia villosa subsp. villosa Lowell Ahart 2001-5-10 8737 Butte On the sides 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. 22 Comment
  JEPS102337  Vicia villosa subsp. villosa Lowell Ahart 2001-5-10 8737 Butte 4 air miles SW of Gridley (on sides of dirt rd E of the large pump, on S side of Evans-Reimer Rd, 1 mi E of Pennington Rd, Gray Lodge Waterfowl Management Area) 22 Comment
  CHSC103015  Wolffia globosa Lowell Ahart 2009-10-8 16411 Butte In a deep large ditch, on the east side of the road, about 20 yards east of Parking Lot 13, Gray Lodge Waterfowl Management Area, about 7 miles (air) southwest of Gridley. 19 Comment
  CHSC47127  Wolffiella oblonga Vernon H. Oswald 1989-10-18 4026 Butte West end of West Liberty Rd along the n boundary of Gray Lodge Wildlife Area. In a pond. 19 Comment
  CHSC37080  Xanthium spinosum L. Ahart; M. S. Taylor 1982-10-11 3851 Butte Fire guard, n of the check-in station, Graylodge Wildlife Refuge, ca. 12 mi sw of Gridley. 35 Comment
  UC1099989  Zannichellia palustris Herbert L. Mason and Verne Grant 1946-8-8 12998 Butte reclamation Ditch 833 on w. Gridley Rd. near Pennington Rd. Butte Sink Comment



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