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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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CHSC20756
Polygonum aviculare
K. R. Stern
1975-7-24
5874
Plumas
S shore of Lake Almanor.
1371
Comment
CHSC40623
Polygonum aviculare
Lowell Ahart
1985-9-26
5174
Plumas
Below the high water line of Little Grass Valley Reservoir, where Black Rock Creek flows into the lake, about 4 miles north-west of La Porte.
1584
Comment
CHSC40874
Polygonum aviculare
K. R. Stern
1985-6-25
8219
Plumas
Vicinity of Blairsden, Feather River bottoms.
1371
Comment
CHSC53692
Polygonum aviculare
L. P. Janeway
1989-7-19
3498
Plumas
Edge of forest along SW side of Red Clover Valley; 0.2 mi SW of Beckwourth-Genesee Rd (rd 111) 11.7 mi from Beckwourth. In center of dirt road. Beckwourth Ranger District Plumas National Forest.
1676
Comment
CHSC76805
Polygonum aviculare
L. P. Janeway
1997-9-29
5364
Plumas
Along Soda Creek 0.1 mi north of Hwy 70 and East Branch North Fork Feather River. Common along edge of dirt road.
944
Comment
CHSC81624
Polygonum aviculare
Lowell Ahart
2001-10-8
9309
Plumas
On the sides of Boulder Creek, below the high water line of Antelope Lake, about 24 mies (air) northeast of Quincy.
1522
Comment
CHSC81807
Polygonum aviculare
Lowell Ahart
2001-10-16
9386
Plumas
On the south side of a small stream and on the northwest side of Round Valley Reservoir, about 2 1/2 miles southwest of Greenville.
1363
Comment
CHSC84450
Polygonum aviculare
Lowell Ahart; John Dittes
2003-8-8
10486
Plumas
On an old abandoned road, on the east side of Beckwourth Calpine Road, about 3 miles south of Beckwourth, Sierra Valley.
1482
Comment
CHSC92178
Polygonum aviculare
Lowell Ahart; John Dittes
2005-9-19
12410
Plumas
Along the east side of a good dirt road, about 1 1/4 miles southeast of Kettle Rock, about 1 1/4 miles southeast of Taylor Lake.
1986
Comment
CHSC95015
Polygonum aviculare
Lowell Ahart
2006-10-23
13483
Plumas
Gravel bar, on the west side of Slate Creek (there is a large gravel flat caused by the dam), where the road ends, about 50 yards north of the dam across Slate Creek, about 1/8 mile northeast of Scales Road, about 5 1/2 miles (air) northeast of Strawberry Valley.
1281
Comment
CHSC97099
Polygonum aviculare
Lowell Ahart; Josephine Guardino
2007-7-21
14375
Plumas
Along a small dry drainage, about 5 yards south of the Beckwourth Taylorsville Road, about 1/4 miles (air) northwest of the most northwest part of Lake Davis.
1813
Comment
NY404735
Polygonum aviculare
Mrs. Ames
1876-1
s.n.
Plumas
Comment
SD46511
Polygonum aviculare
Robert J. Weatherby
1950-7-21
1468
Plumas
Railroad tracks east Quincy
1036
Comment
SEINET10479332
Polygonum aviculare
Mary Susan Taylor
1982-9-13
Taylor 5135
Plumas
T23N R14E se/ne sec 27. Portola quad. Ramelli Ranch, in vicinity of Calpine Rd bridge (109) over Feather River, on s side of the river, ca. 1 mi w of Beckwourth. 4880 ft.
1487
Comment
SEINET10479335
Polygonum aviculare
Lowell Ahart, Peter Ahart
1985-9-26
Ahart 5174
Plumas
Below the high water line of Little Grass Valley Reservoir, where the South Fork of the Feather River flows into the lake, about 4 1/4 miles north-east of La Porte.
Comment
SEINET11934445
Polygonum aviculare
L. Ahart, Ahart, P.
1985-1
5174
Plumas
Below the high water line of Little Grass Valley Reservoir, where the South Fork of the
Comment
CHSC113858
Polygonum aviculare subsp. aviculare
Lowell Ahart
2014-9-9
19842
Plumas
Below the high water line,on the sides of Sly Creek, Sly Creek Reservoir, about 7 miles (air) southwest of La Porte.
1069
Comment
CHSC113873
Polygonum aviculare subsp. aviculare
Lowell Ahart
2014-8-24
19760
Plumas
Center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte.
1533
Comment
CHSC37676
Polygonum aviculare subsp. aviculare
M. S. Taylor; J. Hickman
1982-9-8
5112
Plumas
Bellas Flat near Bellas Creek, Round Valley Reservoir, ca. 4 air mi s of Greenville.
1371
Comment
CHSC37700
Polygonum aviculare subsp. aviculare
M. S. Taylor; J. Hickman
1982-9-13
5134
Plumas
Ramelli Ranch, under Calpine Rd (109) bridge over Feather River, ca. 1 mi w of Beckwourth.
1487
Comment
JEPS122238
Polygonum aviculare subsp. aviculare
Lowell Ahart
2014-9-9
19842
Plumas
Below the high water line, on the sides of Sly Creek, Sly Creek Reservoir, about 7 miles (air) southwest of La Porte.
Comment
JEPS122302
Polygonum aviculare subsp. aviculare
Lowell Ahart
2014-8-24
19760
Plumas
Center of the South Fork of the Feather River, Little Grass Valley Reservoir, about 200 yards southwest of the parking lot to the Pacific Crest Trail, about 1/4 mile southwest of the bridge across the South Fork of the Feather River, about 4 miles (air) north of La Porte.
Comment
JEPS50555
Polygonum aviculare subsp. aviculare
W. L. Jepson
1939-8-4
19333
Plumas
Rock Creek Meadow Valley
1219
Comment
JEPS81645
Polygonum aviculare subsp. aviculare
M. S. Taylor
1982-9-13
5134
Plumas
Calpine Rd (109) bridge Portola quad., Feather River, Ramelli Ranch (base, ca 1 mi w of Beckwourth)
1487
Comment
JEPS81646
Polygonum aviculare subsp. aviculare
M. S. Taylor
1982-9-8
5112
Plumas
near Bellas Creek (w side of Round Valley Reservoir, ca 4 air mi s of Greenville); Greenville SW quad, Bellas Fault
1371
Comment
CAS-BOT-BC414044
Polygonum aviculare subsp. aviculare
Greg Sommers
1976-8-4
215
Plumas
Sierra Valley Marsh. Along road at west end of Dyson Lane
1524
Comment
CAS-BOT-BC414045
Polygonum aviculare subsp. aviculare
Robert J. Weatherby
1950-7-21
1468
Plumas
East Quincy
1036
Comment
CAS-BOT-BC414046
Polygonum aviculare subsp. aviculare
Clare B. Hardham
1970-8-9
17716 DD
Plumas
Road to Thompson Peak Lookout
2133
Comment
CAS-BOT-BC414047
Polygonum aviculare subsp. aviculare
John Thomas Howell
1955-7-19
30761
Plumas
Beckwourth
1493
Comment
CAS-BOT-BC414048
Polygonum aviculare subsp. aviculare
John Thomas Howell
1951-8-19
28191
Plumas
Greenville
1097
Comment
CAS-BOT-BC414049
Polygonum aviculare subsp. aviculare
M. S. Taylor
1982-9-13
5134
Plumas
Ramelli Ranch, under Calpine Rd (109) bridge over Feather River, ca. 1 mi w of Beckwourth
1487
Comment
CAS-BOT-BC414050
Polygonum aviculare subsp. aviculare
M. S. Taylor
1982-9-8
5112
Plumas
Bellas Flat near Bellas Creek, Round Valley Reservoir, ca. 4 air mi s of Greenville
1371
Comment
UC1192342
Polygonum aviculare subsp. buxiforme
Malcolm A. Nobs and S. Galen Smith
1949-8-18
1368
Plumas
just s Chester (n end of lake); Lake Almanor, Last Chance Marshes
Comment
CAS-BOT-BC414171
Polygonum aviculare subsp. buxiforme
Clare B. Hardham
1970-8-9
17716 X
Plumas
Road to Thompson Peak Lookout
2133
Comment
CHSC102141
Polygonum aviculare subsp. depressum
Lowell Ahart; John Dittes, Josephine Guardino
2009-7-29
16237
Plumas
On dry to damp bare soil, below the high water line of Lake Almanor, 1,849 feet northwest of Lake Almanor Dam.
1591
Comment
CHSC37701
Polygonum aviculare subsp. depressum
M. S. Taylor
1982-9-13
5135
Plumas
Ramelli Ranch, under Calpine Rd (109) bridge over Feather River, ca. 1 mi w of Beckwourth.
1487
Comment
JEPS81644
Polygonum aviculare subsp. depressum
M. S. Taylor
1982-9-13
5135
Plumas
vicinity of Calpine Rd (109) bridge Portola quad., Feather River, Ramelli Ranch (base, ca 1 mi w of Beckwourth)
1487
Comment
UCD100067
Polygonum aviculare subsp. depressum
John Thomas Howell
1959-9-22
34863
Plumas
Lassen Volcanic National Park, Drakesbad.
1737
Comment
CAS-BOT-BC414218
Polygonum aviculare subsp. depressum
John Thomas Howell
1960-7-19
35614
Plumas
Lassen Volcanic National Park. Near buildings, Drakesbad
1828
Comment
CAS-BOT-BC414220
Polygonum aviculare subsp. depressum
John Thomas Howell
1961-9-22
36808
Plumas
Greenville
1088
Comment
CAS-BOT-BC414221
Polygonum aviculare subsp. depressum
John Thomas Howell
1959-9-22
34863
Plumas
Drakesbad
1737
Comment
CAS-BOT-BC414222
Polygonum aviculare subsp. depressum
Walter Knight; Irja Knight
1966-9-12
1742
Plumas
Butterfly Botanical Area and Vicinity. Mouth of Butterfly Creek
883
Comment
CAS-BOT-BC414223
Polygonum aviculare subsp. depressum
M. S. Taylor
1982-9-13
5135
Plumas
Ramelli Ranch, under Calpine Rd (109) bridge over Feather River, ca. 1 mi w of Beckwourth
1487
Comment
CHSC110251
Polygonum aviculare subsp. neglectum
L. P. Janeway
2012-10-17
11077
Plumas
Northern High Sierra Nevada. Plumas National Forest; 500 m east of Little Grass Valley Reservoir high water line and 200 m south of Kenzie Ravine.
1554
Comment
JEPS120553
Polygonum aviculare subsp. neglectum
L. P. Janeway
2012-10-17
11077
Plumas
Northern High Sierra Nevada. Plumas National Forest; 500 m east of Little Grass Valley Reservoir high water line and 200 m south of Kenzie Ravine.
Comment
CAS-BOT-BC414309
Polygonum aviculare subsp. neglectum
Lowell Ahart
1985-9-26
5174
Plumas
Below the high water line of Little Grass Valley Reservoir, where Black Rock Creek flows into the lake, about 4 miles north-west of La Porte
1584
Comment
CAS-BOT-BC414310
Polygonum aviculare subsp. neglectum
Lowell Ahart
1981-9-6
3071
Plumas
1 1/2 miles SW of Crescent Mills
1200
Comment
CAS-BOT-BC414311
Polygonum aviculare subsp. neglectum
John Thomas Howell; Gordon H. True
1967-7-12
43382
Plumas
Twain
883
Comment