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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
CAS-BOT-BC334485 Persicaria hydropiperoides
P. DaSilva; A. Young; B. Traut; S. Tsiu; J. Woods
2013-8-10
13154
Marin
Marin Municipal Water District Lands: Mount Tamalpais. East of Lagunitas Dam, between Lake Lagunitas and Lakeview Road, across from culvert LV-04
Comment
CAS-BOT-BC418832 Persicaria hydropiperoides
Brian Atwater
1978-10-24
BA- 165
Contra Costa
Between Bethel Island and Holland Tract
Comment
CAS-BOT-BC418834 Persicaria hydropiperoides
Clare B. Hardham
1957-9-3
2586
Kern
Kern Co. Park
Comment
CAS-BOT-BC418836 Persicaria hydropiperoides
H. P. Chandler
1912-8-6
1142
Mariposa
Yosemite Valley
1210
Comment
CAS-BOT-BC418837 Persicaria hydropiperoides
H. P. Chandler
1912-8-6
1142
Mariposa
Yosemite Valley
1210
Comment
CAS-BOT-BC418839 Persicaria hydropiperoides
Malcom A. Nobs; S. Galen Smith
1948-7-14
120
Merced
Pond 1/4 mile south of Holister Club road. Gustine Gun Club, about 4 miles southeast of Gustine
Comment
CAS-BOT-BC418842 Persicaria hydropiperoides
Le Roy Abrams
1901-6-11
1754
Orange
New River near Long Beach
Comment
CAS-BOT-BC418843 Persicaria hydropiperoides
Carl B. Wolf
1932-6-13
3719
Orange
Fullerton, Malvern & Nicholas Aves.
53
Comment
CAS-BOT-BC418844 Persicaria hydropiperoides
J. Ewan
1931-10-3
5211
Riverside
Santa Ana River 4 mi. N.W. of Corona
Comment
CAS-BOT-BC418845 Persicaria hydropiperoides
Philip A. Munz
1935-10-21
14652
Riverside
Santa Ana River, below Rincon
Comment
CAS-BOT-BC418846 Persicaria hydropiperoides
Philip A. Munz
1935-10-21
14652
Riverside
Santa Ana River, below Rincon
Comment
CAS-BOT-BC418851 Persicaria hydropiperoides
V. F. Hesse
1958-10-16
2552
Santa Cruz
Pinto Lake, near Freedom
60
Comment
CAS-BOT-BC418852 Persicaria hydropiperoides
V. F. Hesse
1958-10-16
2552
Santa Cruz
Pinto Lake, near Freedom
609
Comment
CAS-BOT-BC418853 Persicaria hydropiperoides
V. F. Hesse
1960-8-30
2552
Santa Cruz
Pinto Lake, near Freedom
60
Comment
CAS-BOT-BC418857 Persicaria hydropiperoides
Lowell Ahart
1977-8-31
s.n.
Yuba
2 miles north-east of Marysville
30
Comment
CAS-BOT-BC418860 Persicaria hydropiperoides
Lowell Ahart
1987-9-4
5881
Butte
On the bottom of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville
67
Comment
CAS-BOT-BC418862 Persicaria hydropiperoides
R. Bacigalupi; I. L. Wiggins; R. S. Ferris
1941-7-29
2688
Fresno
2 mi. west of Tranquility Junction on State Highway 180
Comment
CAS-BOT-BC418863 Persicaria hydropiperoides
David D. Keck
1932-9-28
1845
Fresno
China Slough, creek through Centerville
Comment
CAS-BOT-BC418864 Persicaria hydropiperoides
David D. Keck
1932-9-28
1845
Fresno
China Slough, creek through Centerville
Comment
CAS-BOT-BC418865 Persicaria hydropiperoides
Roxana S. Ferris; R. Bacigalupi
1951-8-24
12435
Fresno
On General Grant Grove highway just east of Centerville
Comment
CAS-BOT-BC418866 Persicaria hydropiperoides
Roxana S. Ferris; R. Bacigalupi
1951-8-24
12435
Fresno
On General Grant Grove highway just east of Centerville
Comment
CAS-BOT-BC418871 Persicaria hydropiperoides
J. W. Blankinship
1928-9-17
s.n.
Lake
Lakeport
Comment
CAS-BOT-BC418872 Persicaria hydropiperoides
Le Roy Abrams
1901-8-1
2187
Los Angeles
Ballona Creek
Comment
CAS-BOT-BC418873 Persicaria hydropiperoides
LeRoy Abrams
1902-6-13
2530
Los Angeles
Ballona Creek near Mesmer
Comment
CAS-BOT-BC418874 Persicaria hydropiperoides
LeRoy Abrams
1904-9-2
4186
Los Angeles
Los Angeles River, Los Angeles
Comment
CAS-BOT-BC418875 Persicaria hydropiperoides
A. C. Sanders; T. B. Salvato; Mitch Provance
2009-5-27
36952
Los Angeles
San Gabriel Valley: confluence of San Gabriel River and Walnut Creek, between El Monte and Baldwin Park, S of I-10 Fwy and north of Valley Blvd, W of I-605 Fwy, under SCE powerlines.
88
Comment
CAS-BOT-BC418877 Persicaria hydropiperoides
John Thomas Howell
1946-6-20
22107
Marin
4 miles n. of Bolinas
Comment
CAS-BOT-BC418878 Persicaria hydropiperoides
John Thomas Howell
1945-10-14
s.n.
Marin
Olema Marshes
Comment
CAS-BOT-BC418879 Persicaria hydropiperoides
John Thomas Howell
1946-9-20
s.n.
Marin
Laguna in Chileno Valley
Comment
CAS-BOT-BC418880 Persicaria hydropiperoides
Doris K. Kildale
1928-7-18
5683
Mendocino
1 mile north of Willits on Redwood highway
Comment
CAS-BOT-BC418882 Persicaria hydropiperoides
Gladys L. Smith
1978-8-15
5044
Mendocino
Behind Pudding Creek Dam, built in 1953, north edge of Fort Bragg
15
Comment
CAS-BOT-BC418884 Persicaria hydropiperoides
S. B. Parish
1917-10-15
11616
San Bernardino
San Bernardino Valley
304
Comment
CAS-BOT-BC418885 Persicaria hydropiperoides
S. B. Parish
1901-9-10
5099
San Bernardino
Vicinity of San Bernardino
762
Comment
CAS-BOT-BC418886 Persicaria hydropiperoides
J. Ewan
1931-10-3
5205
San Bernardino
Chino Creek, 2 miles south of Chino
Comment
CAS-BOT-BC418887 Persicaria hydropiperoides
J. Ewan
1931-10-3
5206
San Bernardino
Chino Creek, 2 miles south of Chino
Comment
CAS-BOT-BC418888 Persicaria hydropiperoides
Brian Atwater
1978-8-24
BA- 106
San Joaquin
Between Rindge [Ridge] Tract and Wright Tract
Comment
CAS-BOT-BC418890 Persicaria hydropiperoides
Ira L. Wiggins
1940-8-12
9532 a
San Joaquin
1 mi. NW. of San Joaquin River bridge on U. S. Highway 50
Comment
CAS-BOT-BC418892 Persicaria hydropiperoides
John Thomas Howell
1929-9-21
4417
San Joaquin
Holt
Comment
CAS-BOT-BC418895 Persicaria hydropiperoides
Greg de Nevers
1987-7-10
8237
Sonoma
Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa
400
Comment
CAS-BOT-BC418896 Persicaria hydropiperoides
Greg de Nevers
1987-7-10
8237
Sonoma
Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa
400
Comment
CAS-BOT-BC418900 Persicaria hydropiperoides
Peter Rubtzoff
1969-8-24
6144
Sonoma
On River Road 3 mi. west of Fulton
Comment
CAS-BOT-BC418902 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-14
4535
Sonoma
Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads)
Comment
CAS-BOT-BC418903 Persicaria hydropiperoides
Peter Rubtzoff
1954-8-10
1675
Sonoma
Bodega Head Marsh
Comment
CAS-BOT-BC418904 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-31
3953
Sonoma
Atascadero Creek Marsh
Comment
CAS-BOT-BC418905 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-14
4526
Sonoma
Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads)
Comment
CAS-BOT-BC418906 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-17
4565
Sonoma
Laguna de Santa Rosa area northeast of Graton (near Laguna Road)
Comment
CAS-BOT-BC418908 Persicaria hydropiperoides
Peter Rubtzoff
1958-7-19
3777
Sonoma
Laguna de Santa Rosa east of Sebastopol
Comment
CAS-BOT-BC418909 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-31
3954
Sonoma
Atascadero Creek Marsh
Comment
CAS-BOT-BC418911 Persicaria hydropiperoides
Peter Rubtzoff
1963-10-5
5289
Sonoma
Laguna de Santa Rosa east of Graton
Comment
CAS-BOT-BC418912 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-14
4540
Sonoma
Laguna de Santa Rosa east of Graton (betw. Occidental and Guerneville roads)
Comment
CAS-BOT-BC418913 Persicaria hydropiperoides
Peter Rubtzoff
1961-9-6
4739
Sonoma
Laguna de Santa Rosa area northeast of Graton
Comment
CAS-BOT-BC418915 Persicaria hydropiperoides
Peter Rubtzoff
1963-10-5
5290
Sonoma
Laguna de Santa Rosa east of Graton
Comment
CAS-BOT-BC418916 Persicaria hydropiperoides
Peter Rubtzoff
1956-9-15
2897
Sonoma
Atascadero Creek Marsh
Comment
CAS-BOT-BC418917 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-9
3859
Sonoma
Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road)
Comment
CAS-BOT-BC418918 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-16
3880
Sonoma
Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road)
Comment
CAS-BOT-BC418919 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-23
3928
Sonoma
Laguna de Santa Rosa east of Cunningham (nr. Llano Rd.)
Comment
CAS-BOT-BC418921 Persicaria hydropiperoides
Peter Rubtzoff
1956-9-15
2907
Sonoma
Atascadero Creek Marsh
Comment
CAS-BOT-BC418924 Persicaria hydropiperoides
Peter Rubtzoff
1960-6-9
4476
Sonoma
Laguna de Santa Rosa area northeast of Graton, near the Laguna Road
Comment
CHSC106098 Persicaria hydropiperoides
Lowell Ahart; John Dittes
2010-7-30
16933
Siskiyou
Along the south edge of the Shasta River, about 100 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada.
716
Comment
CHSC112667 Persicaria hydropiperoides
Lowell Ahart
2013-10-19
19149
Glenn
On the east side of the backwater, along the west side of the Sacramento River, about 300 yards north of the bridge, west of Butte City.
26
Comment
CHSC36528 Persicaria hydropiperoides
L. Ahart
1982-8-22
3748
Butte
Peter Ahart Ranch, ca. 1 mi n and 3 mi e of Honcut. On wet sand along the edge of North Honcut Creek.
50
Comment
CHSC37070 Persicaria hydropiperoides
L. Ahart
1982-10-6
3847
Butte
Peter Ahart Ranch, ca. 3 mi ne of Honcut. Along edges of North Honcut Creek.
50
Comment
CHSC43266 Persicaria hydropiperoides
Lowell Ahart
1987-9-4
5881
Butte
On the bottom of a drying pond, on the bottom of North Honcut Creek, about 2 miles north and 3 miles east of Honcut, about 12 miles south-east of Oroville.
67
Comment
CHSC45379 Persicaria hydropiperoides
Vernon Oswald
1983-10-10
1063
Butte
Bidwell State Park on the e side of the Sacramento R. w of Chico. Growing in shallow water along the edges of Tyler Slough at the Indian Fishery located at the jct. of W. Sacramento Ave. and River Rd.
Comment
CHSC46202 Persicaria hydropiperoides
L. P. Janeway
1986-9-20
1870
Butte
Seasonally draining side creek on NW side of Little Chico Cr, near River Rd ca 2 mi S of Chico River Rd.
36
Comment
CHSC51525 Persicaria hydropiperoides
M. Bailey
1990-10-16
418
Butte
North side of man-made pond #3, Butte College campus.
Comment
CHSC55244 Persicaria hydropiperoides
Lowell Ahart
1991-10-14
6715
Butte
On the sides of a reservoir, Joie Osgood Ranch, about 2 miles east of Honcut.
45
Comment
CHSC55245 Persicaria hydropiperoides
Lowell Ahart
1991-9-14
6716
Butte
On the sides of a reservoir, Joie Osgood Ranch, about 2 miles east of Honcut.
45
Comment
CHSC60915 Persicaria hydropiperoides
Vernon H. Oswald
1993-6-23
5569
Glenn
Sacramento National Wildlife Refuge located ca. 7 mi S of Willows, along the E side of Cell 2, Pool 10. Locally abundant emergent in a beck water of Logan Creek.
21
Comment
CHSC66674 Persicaria hydropiperoides
Vernon H. Oswald; Lowell Ahart
1996-7-22
8082
Butte
Sacramento River National Wildlife Refuge, Llano Seco Unit. U. S. Fish and Wildlife Service parcel between 7 Mile Lane and the Sacramento River. Abundant in wet mud on the bottom of a drying slough on the W side of the levee at the SW corner of Tract 6, Sanctuary I.
30
Comment
CHSC66898 Persicaria hydropiperoides
Vernon H. Oswald
1996-10-22
8302
Butte
Northern Sacramento Valley. Oroville Wildlife Area on the NW side of the Feather River just upstream from the outlet of Thermalito Afterbay.
33
Comment
CHSC84592 Persicaria hydropiperoides
Lowell Ahart; John Dittes
2003-9-17
10589
Tehama
On the south edge of a gravel bar on the south side of Deer Creek, about 400 yards east of Highway 99, about 5 miles (air) southeast of Los Molinos.
60
Comment
CHSC92662 Persicaria hydropiperoides
D. Isle
2004-7-8
1378
Glenn
Mendocino National Forest--North Coast Ranges. North of Princeton on edge W of Sacramento River.
Comment
CHSC99894 Persicaria hydropiperoides
Lowell Ahart; John Dittes
2008-8-21
15245
Merced
On the bottom of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced.
53
Comment
HSC86711 Persicaria hydropiperoides
Gladys L. Smith
1982-7-2
7615
Mendocino
Along Hwy. 101 at Little Lake Valley Lagoon, 2 mi. N of Willits
427
Comment
JEPS120312 Persicaria hydropiperoides
Jake Ruygt
1992-8-6
3122
Napa
Yountville Ecological Reserve, Yountville Cross Road, Napa River. Yountville 7.5' Quad.
Comment
JEPS120659 Persicaria hydropiperoides
Lowell Ahart
2013-10-19
19149
Glenn
On the east side of the backwater, along the west side of the Sacramento River, about 300 yards north of the bridge, west of Butte City.
Comment
JEPS125632 Persicaria hydropiperoides
Daniel Slakey with CNPS Volunteers
2015-9-12
226
Contra Costa
Browns Island, northern part of Crooked Slough.
Comment
RSA0064386 Persicaria hydropiperoides
LeRoy Gross, Joy England, Naomi S. Fraga
2015-5-6
7328
Ventura
USC/Best Property; Off Pyle Road, south of Highway 126. Almost halfway between Santa Paula and Fillmore.
99
Comment
RSA0069598 Persicaria hydropiperoides
LeRoy Gross, Sarah DeGroot, Cheryl Sevilla
2015-4-9
7064
Ventura
Loughman/Peto Family Trust Properties; Along the river, just east of Santa Paula. End of S. Hallock Drive, south of Highway 126.
82
Comment
RSA0083043 Persicaria hydropiperoides
Sarah J. De Groot, Noravit Chumchim
2015-7-15
7454
Ventura
The Nature Conservancy Banman (Prairie Pacific) Property. Santa Clara River floodplain east-southeast of Santa Paula, east of South Mountain Road, northwest of South Mountain, south of Sulphur Mountain/Santa Paula Ridge,, south of Highway 126. Oak Ridge Fault zone.
73
Comment
SBBG125898 Persicaria hydropiperoides
R. G. Swinney
2008-5-30
8895
Los Angeles
San Gabriel Cyn at El Encanto, W bank of the river
256
Comment
SBBG126174 Persicaria hydropiperoides
A. C. Sanders with T. B. Salvato, M. Provance
2009-5-27
36951
Los Angeles
confluence of San Gabriel River and Walnut Crk, between El Monte and Baldwin Park, S of I-10 Fwy and N of Valley Blvd, W of I-605 Fwy, under SCE powerlines
83
Comment
SBBG132049 Persicaria hydropiperoides
S. J. DeGroot, N. Chumchim
2015-7-15
7454
Ventura
Santa Clara River floodplain ESE of Santa Paula, E of S Mtn Rd, NW of S Mtn; Nature Conservancy Banman (Prairie Pacific) Property
73
Comment
SBBG1697 Persicaria hydropiperoides
C. B. Hardham
1957-9-3
2586
Kern
park near Bakersfield, edge of Kern River
Comment
SBBG20596 Persicaria hydropiperoides
E. C. Twisselmann
1963-11-22
9134
Madera
San Joaquin River, just E of Firebaugh
44
Comment
SD123635 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-14
4526
Sonoma
Laguna de Santa Rosa east of Graton, (betw. Occidental and Guerneville rds.)
Comment
SD197887 Persicaria hydropiperoides
A. C. Sanders
2004-6-10
28100
San Diego
Carlsbad, Agua Hedionda Ecological Reserve, near El Camino Real and Cannon Rd. along lower Agua Hedionda Creek.
9
Comment
SD207428 Persicaria hydropiperoides
Stacy Anderson
2009-6-25
114
San Diego
Ramona, Cleveland National Forest, SE of San Diego Country Estates, 1.4 mi E of S end of Thornbush Rd, W of Cedar Creek Falls, N side of creek
292
Comment
SD227880 Persicaria hydropiperoides
Scott D. White
1997-5-14
5125
Los Angeles
Big Tujunga Wash: Sunland-Tujunga area; alluvial fan below San Gabriel Mts. SW of I-210 Freeway, E of Hansen Dam and N of Wentworth St. USGS 7.5' Sunland quad.
320
Comment
SD230270 Persicaria hydropiperoides
Louis C. Wheeler
1969-10-12
12355
San Bernardino
San Gabriel Mountains: Glen Helen Park, Cajon Canyon.
Comment
SD231420 Persicaria hydropiperoides
Scott D. White, Matt Carlton
2003-11-20
9868
Orange
Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano.
24
Comment
SD237571 Persicaria hydropiperoides
A. C. Sanders
2009-11-6
37218
Los Angeles
South Coast: Madrona Marsh, Torrance (Torrance 7.5'Q)
24
Comment
SD241151 Persicaria hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18410
El Dorado
Northern Sierra Nevada Mountains Foothills: Forebay Road, 8.1 miles northwest of Pollock Pines at the south side of the bridge over the South Fork American River (Pollock Pines 7.5'Q)
611
Comment
SD253531 Persicaria hydropiperoides
R. G. Swinney
2011-11-3
15979
Los Angeles
San Gabriel Mountains: Little Santa Anita Canyon, Fkirst Water, 1.7 miles up canyon from Mt. Wilson Trailhead, north of Sierra Madre.
622
Comment
SJSU12000 Persicaria hydropiperoides
N. A. Hopkins
1976-6-8
785
Santa Cruz
N side of Pinto L c. 3 mi N of Watsonville
Comment
SJSU5986 Persicaria hydropiperoides
C. W. Sharsmith
1972-6-24
7807
Sonoma
Laguna de Santa Rosa, N of Sebastopol, E of Graton
Comment
UCD149578 Persicaria hydropiperoides
Stephen P. Rae; Ayzik Solomeshch
2006-5-30
s.n.
Napa
On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek.
25
Comment
UCD150369 Persicaria hydropiperoides
William Anderson
1963-9-27
s.n.
Butte
Sanborn Slough. Tule Goose Gun Club.
17
Comment
UCD162384 Persicaria hydropiperoides
Chuck Hughes
2015-5-27
430
Amador
About 1 mile northwest of intersection of Highway 16 and Highway 124.
242
Comment
UCD54151 Persicaria hydropiperoides
Marta Laskowski
1993-8-8
10- 325
Sacramento
Cosumnes River Preserve Plant Inventory.
Comment
UCD99319 Persicaria hydropiperoides
Herbert L. Mason; Verne Grant
1946-8-14
13027
Butte
Sacramento Outing Club.
Comment
UCD99327 Persicaria hydropiperoides
G. L. Webster; G. L. Stebbins Jr.
1967-8-22
7529
Sutter
Ca. 1 mile W of 'The Berry Patch' (6 miles W of Pennington).
15
Comment
CAS-BOT-BC418831 Persicaria hydropiperoides
Virginia I. Dains; Walter Knight
1986-8-8
5473
Contra Costa
Jct Rock S1 & Werner Cut
Comment
CAS-BOT-BC418833 Persicaria hydropiperoides
Carl B. Wolf
1928-8-11
3262
Inyo
5 miles so. of Bishop
1350
Comment
CAS-BOT-BC418835 Persicaria hydropiperoides
W. I. Follett; Evelyn B. Follett
1948-10-29
s.n.
Kings
Kings River 7 miles north of Hanford
Comment
CAS-BOT-BC418838 Persicaria hydropiperoides
Peter H. Raven
1961-8-27
16614
Merced
Along Merced River near bridge below Snelling
Comment
CAS-BOT-BC418840 Persicaria hydropiperoides
Malcom A. Nobs; S. Galen Smith
1948-8-9
8302
Merced
1 mile west of Los Banos
Comment
CAS-BOT-BC418841 Persicaria hydropiperoides
John Thomas Howell
1927-7-5
2653
Orange
Near Horseshoe Bend, Santa Ana River bottom, Santa Ana Canon [Canyon]
152
Comment
CAS-BOT-BC418847 Persicaria hydropiperoides
Ira L. Wiggins
1985-9-28
22299
San Mateo
Bed of San Francisquito Creek, N side of creek bed, just above Pop [Pope] Street bridge, Menlo Park
Comment
CAS-BOT-BC418848 Persicaria hydropiperoides
Ira L. Wiggins
1985-9-28
22298
San Mateo
Bed of San Francisquito Creek, N side of creek bed, just above Pope Street bridge, Menlo Park
Comment
CAS-BOT-BC418849 Persicaria hydropiperoides
Roxana S. Ferris
1920-9-3
2047
San Mateo
Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge
Comment
CAS-BOT-BC418850 Persicaria hydropiperoides
W. R. Dudley
1906-9-1
s.n.
Santa Clara
Santa Cruz Mountain Peninsula. Reservoir near Raymonds
Comment
CAS-BOT-BC418854 Persicaria hydropiperoides
Lowell Ahart
1981-9-10
3133
Sutter
South side of South Butte, Sutter Buttes
450
Comment
CAS-BOT-BC418855 Persicaria hydropiperoides
William Anderson
1964-10-10
s.n.
Sutter
Field & Tule Gun Club
Comment
CAS-BOT-BC418856 Persicaria hydropiperoides
Ira L. Wiggins
1972-9-17
21946
Tuolumne
Vacant lot on N side of Post Office, Twain Harte
1127
Comment
CAS-BOT-BC418858 Persicaria hydropiperoides
Lowell Ahart
1982-8-22
3748
Butte
Along the edge of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut
50
Comment
CAS-BOT-BC418859 Persicaria hydropiperoides
Lowell Ahart
1982-10-6
3847
Butte
Along the edges of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 3 miles east of Honcut
50
Comment
CAS-BOT-BC418861 Persicaria hydropiperoides
Herbert L. Mason; Verne Grant
1946-8-14
13027
Butte
Butte Sink. On Sacramento Outing Club
Comment
CAS-BOT-BC418867 Persicaria hydropiperoides
Lyman Benson
1931-8-31
2892
Lake
Soda Bay, Middle N Coast Range, Clear Lake
426
Comment
CAS-BOT-BC418868 Persicaria hydropiperoides
Agnes M. Bowman
1901-9-1
s.n.
Lake
Lakeport
Comment
CAS-BOT-BC418869 Persicaria hydropiperoides
Agnes M. Bowman
1901-9-7
s.n.
Lake
Lakeport
Comment
CAS-BOT-BC418870 Persicaria hydropiperoides
Malcom A. Nobs; S. Galen Smith
1949-9-9
1857 a
Lake
At Scott Creek, Bridge 1431, northwestern end of Clear Lake
Comment
CAS-BOT-BC418876 Persicaria hydropiperoides
Doreen Smith
1997-7-6
s.n.
Marin
5-Brooks Pond, Pt. Reyes National Seashore
Comment
CAS-BOT-BC418881 Persicaria hydropiperoides
Clare R. Wheeler
1978-9-27
689
Mendocino
Mendocino National Forest. Howard Lake
1219
Comment
CAS-BOT-BC418883 Persicaria hydropiperoides
Gladys L. Smith
1982-7-2
7615
Mendocino
Along Rte. 101 at Little Lake Valley, 2.0 mi. n. of Willits
426
Comment
CAS-BOT-BC418889 Persicaria hydropiperoides
L. R. Abrams
1920-9-30
7786
San Joaquin
Near Bank
Comment
CAS-BOT-BC418891 Persicaria hydropiperoides
John Thomas Howell
1929-9-21
4418
San Joaquin
Holt
Comment
CAS-BOT-BC418893 Persicaria hydropiperoides
John Thomas Howell
1946-8-17
22856
Sonoma
The Laguna north of Sebastopol
Comment
CAS-BOT-BC418894 Persicaria hydropiperoides
Catherine Best
1981-8-22
s.n.
Sonoma
On Stoetz Lane about 2 miles northeast of Occidental
Comment
CAS-BOT-BC418897 Persicaria hydropiperoides
Peter Rubtzoff
1951-7-1
349
Sonoma
Pitkin Marsh, near Forestville. North of the Lower Marsh
Comment
CAS-BOT-BC418898 Persicaria hydropiperoides
Peter Rubtzoff
1951-9-2
711
Sonoma
Pitkin Marsh, near Forestville. North of the Lower Marsh
Comment
CAS-BOT-BC418899 Persicaria hydropiperoides
Peter Rubtzoff
1951-7-1
349
Sonoma
Pitkin Marsh, near Forestville. North of the Lower Marsh
Comment
CAS-BOT-BC418901 Persicaria hydropiperoides
Peter Rubtzoff
1964-8-20
5471
Sonoma
1 mi. south-east of Jenner (nr. crossing of Hwys. 1 & 12)
Comment
CAS-BOT-BC418907 Persicaria hydropiperoides
Peter Rubtzoff
1958-7-20
3789
Sonoma
Laguna de Santa Rosa northeast of Graton (nr. Guerneville Road)
Comment
CAS-BOT-BC418910 Persicaria hydropiperoides
Peter Rubtzoff
1955-8-27
2099
Sonoma
Bennett Mtn. Lake
Comment
CAS-BOT-BC418914 Persicaria hydropiperoides
Peter Rubtzoff
1960-9-17
4569
Sonoma
Laguna de Santa Rosa near Trenton (south of Woolsey Road)
Comment
CAS-BOT-BC418920 Persicaria hydropiperoides
Peter Rubtzoff
1961-7-22
4665
Sonoma
Bennett Mtn. Lake
Comment
CAS-BOT-BC418922 Persicaria hydropiperoides
Peter Rubtzoff
1958-9-6
3968
Sonoma
Laguna de Santa Rosa north of Cunningham (nr. Todd Road)
Comment
CAS-BOT-BC418923 Persicaria hydropiperoides
Peter Rubtzoff
1963-9-1
5248
Sonoma
Bennett Mtn. Lake
Comment
CAS-BOT-BC418925 Persicaria hydropiperoides
Peter Rubtzoff
1958-8-17
3888
Sonoma
Laguna de Santa Rosa northeast of Graton (nr. Guerneville Road)
Comment
HSC89764 Persicaria hydropiperoides
Clare R. Wheeler
1978-9-27
689
Mendocino
Mendocino National Forest, Howard Lake
1220
Comment
SD99429 Persicaria hydropiperoides
Peter Rubtzoff
1954-8-10
1675
Sonoma
Bodega Head Marsh, open marshy ground
Comment
SEINET12887236 Persicaria hydropiperoides
S. B. Parish
1891-1
Unknown
Comment
SEINET12887238 Persicaria hydropiperoides
L. R. Abrams
1902-1
2530
Unknown
Comment
SEINET12887240 Persicaria hydropiperoides
I. M. Johnston
1907-1
1962
Unknown
Comment
SEINET12887241 Persicaria hydropiperoides
S. F. Blake
1910-1
863
Unknown
Comment
UC2027897 Persicaria hydropiperoides
Barbara Ertter
1996-9-19
15295
Contra Costa
Antioch Marina, edge of delta.
Comment
UCD62138 Persicaria hydropiperoides
J. Buck
2000-7-1
113
Sacramento
SACRAMENTO COUNTY: Cosumnes River Preserve, Willow Slough.
Comment
UCD99079 Persicaria hydropiperoides
Frederica Bowcutt
1993-7-3
1671
Sacramento
Delta Meadows River Park. About 25 air miles S of Sacramento, 10 air miles W of Galt, and 1 air mile NE of Walnut Grove. Immed. E of Locke, in the Sacramento River Delta, N of the Delta Cross Channel. At end of levee road on old Southern Pacific Railroad right-of-way along side slough off of Snodgrass Slough.
0
Comment
UCD99086 Persicaria hydropiperoides
Frederica Bowcutt
1993-7-16
1709
Sacramento
Delta Meadows River Park. About 25 air miles S of Sacramento, 10 air miles W of Galt, and 3 air mile NE of Walnut Grove. 2 air miles NE of Locke, in the Sacramento River Delta, just S of Twin Cities Bridge. On western perimeter of northern most island in park in Snodgrass Slough.
0
Comment
UCD99311 Persicaria hydropiperoides
Frederica Bowcutt; Fred Hrusa and Sally Wagner
1992-7-18
9229
Sacramento
Delta Meadows River Park. About 25 air miles S of Sacramento, 10 air miles W of Galt, and 1 air mile NE of Walnut Grove. Immediately E of Locke, in Sacramento River Delta, N of the Delta Cross Channel.
0
Comment
UCD99313 Persicaria hydropiperoides
James Dilley
1997-4-5
s.n.
Los Angeles
The Sepulvida Basin in the San Fernando Valley, 1/8 mile north of the dam.
Comment
UCD99316 Persicaria hydropiperoides
P. B. Kennedy
1921-7-9
s.n.
Merced
Near Santa Rita Island, San Joaquin Valley.
Comment
UCD99321 Persicaria hydropiperoides
Malcolm A. Nobs; S. Galen Smith
1949-9-9
1857 a
Lake
Scott Creek, Bridge 1431, northwestern end of Clear Lake.
Comment
UCD99323 Persicaria hydropiperoides
Peter H. Raven
1961-8-27
16614
Merced
Along Merced River near bridge below Snelling.
Comment
UCD99325 Persicaria hydropiperoides
Larry Reynolds
1984-5-18
12
Sacramento
1/2 mi S of Hwy 50 at Scott Rd.
91
Comment
UCSB57136 Persicaria hydropiperoides
Marsh, G.
1975-7-28
Orange
Huntington Beach; East Garden Grove-Wintersburg Flood Control Channel (no.C05); stream bank just N of Warner St. bridge crossing
Comment
UCSC007145 Persicaria hydropiperoides
Randall Morgan
2004-9-19
4329
Santa Cruz
Watsonville, Harkin
Comment
UCSC008682 Persicaria hydropiperoides
Randall Morgan
2004-9-19
4329 B
Santa Cruz
Harkins Slough
Comment
CDA2783 Polygonum hydropiperoides
Jerome Dunnicliff
1979-6-12
Kings
16th and Kansas Northeast, Stratford.
0
Comment
CDA28655 Polygonum hydropiperoides
G. D. Barbe, L. Pineda
1990-9-18
4398
Imperial
0.5 miles west of Guthrie Road on Worthington Road, north of NAS, 5.5 miles west of Imperial, Imperial Avenue.
0
Comment
CDA32122 Polygonum hydropiperoides
L. Ahart, John Dittes
2008-8-21
15245
Merced
On the bottom of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced.
Comment
CDA36203 Polygonum hydropiperoides
A. C. Sanders, Mitch Provance, T. B. Salvato
2009-6-1
37065
Los Angeles
San Gabriel Valley; Rio Hondo in Whittier Narrows area, west of Rosemead Blvd. (Hwy 19) under SCE powerlines, beyond a tree nursery.
Comment
CLARK-A1528-3787 Polygonum hydropiperoides
John C. Roos, Lucille Roos
1952-6-27
5799
San Bernardino
San Bernardino
304
Comment
JEPS104371 Polygonum hydropiperoides
Lowell Ahart
2003-9-17
10589
Tehama
On the south edge of a gravel bar on the south side of Deer Creek, ca 400 yd e of Highway 99, ca 5 mi (air) se of Los Molinos.
60
Comment
JEPS112022 Polygonum hydropiperoides
Dean G. Kelch and Andrew G. Murdock
2004-6-6
DGK 04 .228
Contra Costa
Martinez - Train Station. Downtown Martinez. Alhambra Creek near bay and railroad Station.
Comment
JEPS112593 Polygonum hydropiperoides
Jake Ruygt
1991-7-20
2771
Napa
Lake Orville, Friesen's Lakes, Angwin
563
Comment
JEPS114551 Polygonum hydropiperoides
Lowell Ahart, John Dittes
2008-8-21
15245
Merced
On the bottom of Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced
53
Comment
JEPS117465 Polygonum hydropiperoides
Lowell Ahart, John Dittes
2010-7-30
16933
Siskiyou
Along the south edge of the Shasta River, about 100 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada
716
Comment
JEPS50611 Polygonum hydropiperoides
S. B. Parish
Sep. 1886
San Bernardino
Comment
POM118164 Polygonum hydropiperoides
H. P. Chandler
1912-8-6
1142
Mariposa
Yosemite Valley.
1210
Comment
POM156192 Polygonum hydropiperoides
L. R. Abrams
1902-6-13
2530
Los Angeles
Ballona Creek near Mesmer.
Comment
POM224747 Polygonum hydropiperoides
P. A. Munz
1935-10-21
14652
Riverside
Santa Ana River, below Rincon.
Comment
POM286373 Polygonum hydropiperoides
Lyman Benson
1931-8-31
2892
Lake
Soda Bay Middle N Coast, alt Clear Lake.
427
Comment
POM466337 Polygonum hydropiperoides
J. Ewan
1931-10-3
5205
San Bernardino
Chino Creek, 2 miles south of Chino.
Comment
RSA0105495 Polygonum hydropiperoides
R. G. Swinney
2011-11-3
15979
Los Angeles
San Gabriel Mountains: Little Santa Anita Canyon, First Water, 1.7 miles up canyon from Mt. Wilson Trailhead, north of Sierra Madre.
622
Comment
RSA0116457 Polygonum hydropiperoides
Mitch Provance
2012-11-10
17604
Riverside
San Bernardino Valley: Riverside, Springbrook Creek (remnant) Fairmont Park, between the east side of Lake Evans and the west side of Market St.
245
Comment
RSA102351 Polygonum hydropiperoides
S. B. Parish
1893-10
s.n.
San Bernardino
[Unspecified]
Comment
RSA195 Polygonum hydropiperoides
J. T. Howell
1927-7-5
268
Orange
West side, Rancho Santa Ana [Botanic Garden].
152
Comment
RSA234544 Polygonum hydropiperoides
Peter Rubtzoff
1960-9-14
4535
Sonoma
Laguna de Santa Rosa, E of Graton, (between Occidental and Guerneville road)
Comment
RSA289843 Polygonum hydropiperoides
Barry A. Prigge
1980-9-17
4069
Riverside
Coachella Valley Stormwater Channel: E of Munroe St., Indio.
-3
Comment
RSA466335A Polygonum hydropiperoides
J. Ewan
1931-10-3
5211
Riverside
Santa Ana River, 4 mi. NW if Corona.
Comment
RSA466336A Polygonum hydropiperoides
S. B. Parish
1917-10-15
11616
San Bernardino
San Bernardino Valley
Comment
RSA602463 Polygonum hydropiperoides
Scott D. White
1997-5-14
5125
Los Angeles
Big Tujunga Wash: Sunland-Tujunga area; alluvial fan below San Gabriel Mountains SW of I -210 freeway, E of Hansen Dam, and N of Wentworth St.
351
Comment
RSA6067 Polygonum hydropiperoides
Carl B. Wolf
1932-6-13
3719
Orange
Storm drain at Malvern and Nicholas Aves; Fullerton.
53
Comment
RSA618990 Polygonum hydropiperoides
LeRoy Gross
1998-10-16
88
Los Angeles
Southern base San Gabriel Mtns.: Tujunga Ponds. West of 210 freeway in big Tujunga wash, city of Sunland.
366
Comment
RSA683223 Polygonum hydropiperoides
Scott D. White, Matt Carlton
2003-11-20
9868
Orange
Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point)
24
Comment
RSA713410 Polygonum hydropiperoides
A. C. Sanders
2004-6-10
28100
San Diego
South Coast: Carlsbad, Agua Hedionda Ecological Reserve, near El Camino Real and Cannon Rd., along lower Agua Hedionda Creek.
9
Comment
RSA721174 Polygonum hydropiperoides
J. Mark Porter
2001-11-18
13366
San Bernardino
WHIPPLE MOUNTAINS: Foot of mountains, along the Colorado River.
146
Comment
RSA746554 Polygonum hydropiperoides
A. C. Sanders, T. B. Salvato, Mitch Provance
2009-5-27
36952
Los Angeles
confluence of San Gabriel River and Walnut Creek, between El Monte and Baldwin Park, S of I-10 Fwy and north of Valley Blvd, W of I-605 Fwy, under SCE powerlines
83
Comment
RSA747289 Polygonum hydropiperoides
R. G. Swinney
2008-5-30
8895
Los Angeles
San Gabriel Canyon along old road/trail at El Encanto
256
Comment
RSA750233 Polygonum hydropiperoides
A. C. Sanders, Mitch Provance, T. B. Salvato
2009-6-1
37065
Los Angeles
Rio Hondo in Whittier Narrows area, west of Rosemead Blvd. (Hwy 19) under SCE powerlines, beyond a tree nursery
63
Comment
RSA756069 Polygonum hydropiperoides
T. B. Salvato, Billy Deane
2006-10-16
1927
Orange
Irvine, San Diego Creek flood control channel, between Michelson Driveand the 405 Fwy.
9
Comment
RSA756996 Polygonum hydropiperoides
A. C. Sanders
2009-11-6
37218
Los Angeles
Madrona Marsh, Torrance
24
Comment
RSA758708 Polygonum hydropiperoides
R. G. Swinney
2008-12-2
9905
Los Angeles
mouth of San Gabriel Canyon between Foothill Blvd. and the I-210 Fwy, from main river channel to 300 m east.
165
Comment
RSA762332 Polygonum hydropiperoides
R. G. Swinney
2008-11-30
9862
Los Angeles
Azusa, San Gabriel River Channel, 1.2 mi. north of Foothill Blvd. at mouth of Fish Canyon.
204
Comment
RSA764408 Polygonum hydropiperoides
Justin M. Wood
2009-8-18
1259
Los Angeles
City of Claremont: Bernard Field Station; NW corner of Mills Ave and Foothill Blvd.
390
Comment
RSA769016 Polygonum hydropiperoides
L. Ahart, John Dittes
2008-8-21
15245
Merced
Dutchman Slough, about 220 yards south of the wire gate on the south side of Sandy Mush Road, 3.7 miles west of Highway 99, about 8.5 miles south-southeast of Merced.
53
Comment
SEINET2042036 Polygonum hydropiperoides
George Helmkamp, E. A. Helmkamp
2000-8-29
5985
Riverside
Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea.
67
Comment
SEINET4138034 Polygonum hydropiperoides
Dan S. Cooper
2011-7-23
711 -90
Los Angeles
South Coast: Madrona Marsh, Torrance
24
Comment
SEINET8072012 Polygonum hydropiperoides
C. Elam
2004-1
AZ 050 -166
Imperial
Oxbow outlet.
Comment
SFV20804 Polygonum hydropiperoides
L. Gross
2000-8-25
262
Los Angeles
San Fernando Valley Orcas Park, entered from Foothill Blvd onto Orcas Ave. Hiked west from park heading toward Hansen Dam. East side of Hansen Dam.
325
Comment
UC1101166 Polygonum hydropiperoides
Herbert L. Mason and S. Galen Smith
1948-8-9
8302
Merced
1 mi w Los Banos
Comment
UC1101167 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1949-9-9
1857 a
Lake
Bridge 1431 Clear Lake, Scott Creek (stream bank, nw end of lake)
Comment
UC1101169 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1949-8-11
1328
Del Norte
3 mi s Crescent City
Comment
UC1101170 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1949-8-4
1215
Mendocino
3.8 mi n Willits; Outlet Creek
Comment
UC1101171 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1948-9-5
561
Imperial
above Laguna Dam (on bridge foundation); Colorado River
Comment
UC1101172 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1948-8-24
412
Merced
15 mi e Gustine; Alkaline Grasslands of San Joaquin Valley, Modesto Propert
Comment
UC1101173 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1948-8-24
405
Merced
15 mi e Gustine; Alkaline Grasslands of San Joaquin Valley, Modesto Propert
Comment
UC1101174 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1948-7-14
120
Merced
pond 1/4 mi s Holister Club road (about 4 mi se of Gustine); Gustine Gun Club
Comment
UC1101175 Polygonum hydropiperoides
Herbert L. Mason and Verne Grant
1946-8-14
13027
Butte
Sacramento Outing Club Butte Sink (canal near big pond)
Comment
UC1101177 Polygonum hydropiperoides
Herbert L. Mason
1929-9-21
5442
San Joaquin
Holt Alklaline Grasslands of San Joaquin Valley
Comment
UC1101178 Polygonum hydropiperoides
Herbert L. Mason
1928-9-30
4971
San Joaquin
near Holt; Alkaline Grasslands of San Joaquin Valley, San Joaquin Del
Comment
UC1187044 Polygonum hydropiperoides
V. F. Hesse
1960-8-30
2885
Santa Cruz
near Freedom (lake shore); Pinto Lake
60
Comment
UC1509634 Polygonum hydropiperoides
L. Ahart
1982-8-22
3748
Butte
ca 3 mi ne Honcut; Peter Ahart Ranch, North Honcut Creek
50
Comment
UC1586531 Polygonum hydropiperoides
Lowell Ahart
1991-9-14
6716
Butte
about 2 mi e Honcut (sides of a large reservoir); Joie Osgood Ranch
45
Comment
UC1586532 Polygonum hydropiperoides
Lowell Ahart
1991-9-14
6715
Butte
about 2 mi e Honcut (on sides of large reservoir); Joie Osgood Ranch
45
Comment
UC219481 Polygonum hydropiperoides
LeRoy Abrams
1902-6-13
2530
Los Angeles
near Mesmer; Ballona Creek
Comment
UC311579 Polygonum hydropiperoides
H. P. Chandler
1912-8-6
1142
Mariposa
Yosemite Valley
1210
Comment
UC582926 Polygonum hydropiperoides
Philip A. Munz
1935-10-21
14652
Riverside
below Rincon; Santa Ana River
Comment
UC6630 Polygonum hydropiperoides
Michener and Bioletti
Sept. 1892
San Joaquin
San Joaquin Bridge
Comment
UC6637 Polygonum hydropiperoides
Michener and Bioletti
1892-9-9
San Joaquin
Lathrop
Comment
UC6706 Polygonum hydropiperoides
S. B. Parish
Oct. 1886
San Bernardino
San Bernardino
Comment
UC6707 Polygonum hydropiperoides
S. B. Parish
1895-7-20
3797
San Bernardino
Vicinity of San Bernardino
304
Comment
UC676911 Polygonum hydropiperoides
R. Bacigalupi, I. L. Wiggins and R. S. Ferris
1941-7-29
2688
Fresno
on State Hwy 180 2 mi w Tranquility Junction
Comment
UC729963 Polygonum hydropiperoides
Carl B. Wolf
1932-6-13
3719
Orange
Fullerton; Malvern and Nicholas Avenues
53
Comment
UCR122569 Polygonum hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2000-8-29
5985
Riverside
Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea
-67
Comment
UCR129176 Polygonum hydropiperoides
S. B. Parish
1917-10-15
11616
San Bernardino
San Bernardino Valley, San Bernardino Valley
305
Comment
UCR131389 Polygonum hydropiperoides
Alison Lipman
1998-9-4
s.n.
Los Angeles
South Coastal Plains Region, Los Angeles, San Pedro area, Defense Fuel Support Point (Naval Reservation) 3171 North Gaffey St.
30
Comment
UCR137001 Polygonum hydropiperoides
A. C. Sanders
2004-6-10
28100
San Diego
South Coast, Carlsbad, Agua Hedionda Ecological Reserve, near El Camino Real and Cannon Rd., along lower Agua Hedionda Creek
9
Comment
UCR139909 Polygonum hydropiperoides
Scott D. White
1997-5-14
5125
Los Angeles
Base of San Gabriel Mtns, Big Tujunga Wash, Sunland-Tujunga area, SW of 210 Freeway, east of Hansen Dam and north of Wentworth Street
351
Comment
UCR150564 Polygonum hydropiperoides
Scott D. White, Matt Carlton
2003-11-20
9868
Orange
South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano
24
Comment
UCR157681 Polygonum hydropiperoides
Scott D. White
1994-7-18
2289
Los Angeles
San Gabriel Mtns., San Dimas Canyon; along San Dimas Wash
335
Comment
UCR170193 Polygonum hydropiperoides
George K. Helmkamp, Elizabeth Helmkamp
2005-8-14
9820
El Dorado
Northern Sierra Nevada Foothills, Diamond Springs. Lake Oaks mobile home park
521
Comment
UCR19064 Polygonum hydropiperoides
John C. Roos, L. Roos
1952-6-27
5799
San Bernardino
San Bernardino Valley, City of San Bernardino; E Street south of the city
305
Comment
UCR198023 Polygonum hydropiperoides
Frederica Bowcutt
1993-7-3
1671
Sacramento
Delta Meadows River Park, c. 25 air mi south of Sacramento, 10 air mi west of Galt, and 1 air mi northeast of Walnut Grove. Immediately east of Locke, in the Sacramento River Delta, north of the Delta Cross Channel. At end of levee road on old Southern Pacific Railroad right-of-way along side slough off of Snodgrass Slough
0
Comment
UCR205737 Polygonum hydropiperoides
A. C. Sanders, T. B. Salvato, Mitch Provance
2009-5-28
36985
Los Angeles
San Gabriel Valley, San Gabriel River channel between Lower Azusa Rd. and the I-605 crossing, southwestern lobe of Irwindale between Baldwin Park and El Monte, under SCE powerlines
110
Comment
UCR205940 Polygonum hydropiperoides
A. C. Sanders, Mitch Provance, T. B. Salvato
2009-6-1
37065
Los Angeles
San Gabriel Valley, Rio Hondo in Whittier Narrows area, west of Rosemead Blvd. (Hwy 19) under SCE powerlines, beyond a tree nursery
63
Comment
UCR206480 Polygonum hydropiperoides
R. G. Swinney
2008-5-30
8895
Los Angeles
San Gabriel Mtns., San Gabriel Canyon at El Encanto, west bank of the river
256
Comment
UCR206509 Polygonum hydropiperoides
A. C. Sanders, T. B. Salvato, Mitch Provance
2009-5-27
36952
Los Angeles
San Gabriel Valley, confluence of San Gabriel River and Walnut Creek, between El Monte and Baldwin Park, S of I-10 Fwy and north of Valley Blvd, W of I-605 Fwy, under SCE powerlines
88
Comment
UCR206510 Polygonum hydropiperoides
A. C. Sanders, T. B. Salvato, Mitch Provance
2009-5-27
36951
Los Angeles
San Gabriel Valley, confluence of San Gabriel River and Walnut Creek, between El Monte and Baldwin Park, S of I-10 Fwy and north of Valley Blvd, W of I-605 Fwy, under SCE powerlines
88
Comment
UCR209303 Polygonum hydropiperoides
A. C. Sanders, T. B. Salvato, Mitch Provance
2009-5-26
36939
Los Angeles
San Gabriel Valley, San Gabriel River between Bassett and South El Monte, from Hwy 60 crossing to above confluence with San Jose Creek, vicinity of Thienes Ave. public access to San Gab. Riv. greenway, along the Edison powerlines
71
Comment
UCR209312 Polygonum hydropiperoides
A. C. Sanders
2009-11-6
37218
Los Angeles
South Coast, Madrona Marsh, Torrance
24
Comment
UCR210024 Polygonum hydropiperoides
R. G. Swinney
2008-12-2
9905
Los Angeles
San Gabriel Mtns., mouth of San Gabriel Canyon between Foothill Blvd. and the I-210 Fwy, from main river channel to 300 m east
177
Comment
UCR210187 Polygonum hydropiperoides
R. G. Swinney
2008-10-22
9663
Los Angeles
San Gabriel Mtns., Azusa, mouth of San Gabriel Canyon, 0.5 mi. upstream from entrance of Old San Gabriel Canyon Rd. at El Encanto
244
Comment
UCR210362 Polygonum hydropiperoides
T. B. Salvato, Billy Deane
2006-10-16
1927
Orange
South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY
12
Comment
UCR210493 Polygonum hydropiperoides
R. G. Swinney
2008-11-30
9862
Los Angeles
San Gabriel Mtns., Azusa, San Gabriel River Channel, 1.2 mi. north of Foothill Blvd. at mouth of Fish Canyon
204
Comment
UCR229175 Polygonum hydropiperoides
Dan S. Cooper
2011-8-30
s.n.
Los Angeles
South Coast, Madrona Marsh, Torrance
24
Comment
UCR232641 Polygonum hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18410
El Dorado
Northern Sierra Nevada Mountains Foothills, Forebay Road, 8.1 miles northwest of Pollock Pines at the south side of the bridge over the South Fork American River
611
Comment
UCR241972 Polygonum hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19775
Amador
Northern Sierra Nevada Mountains Foothills, along CA-49 in Plymouth; 0.1 mile south of its junction with Fiddletown Rd./Plymouth-Shenandoah Rd.
303
Comment
UCR246494 Polygonum hydropiperoides
Dan S. Cooper
2011-7-23
711- 90
Los Angeles
South Coast, Madrona Marsh, Torrance
24
Comment
UCR271535 Polygonum hydropiperoides
R. G. Swinney
2011-11-3
15979
Los Angeles
San Gabriel Mountains, Little Santa Anita Canyon, 'First Water', 1.7 miles up canyon from Mt. Wilson Trailhead, north of Sierra Madre
622
Comment
UCR278901 Polygonum hydropiperoides
Mitch Provance
2012-11-10
17604
Riverside
San Bernardino Valley, Riverside, Springbrook Creek (remnant) Fairmont Park, between the east side of Lake Evans and the west side of Market St.
245
Comment
UCR66557 Polygonum hydropiperoides
I. M. Johnston
1916-1
94
San Bernardino
San Gabriel Valley, Red Hill east of Upland
427
Comment
UCR67000 Polygonum hydropiperoides
S. J. Myers
1990-12-5
s.n.
Riverside
Santa Ana River, Louis Rubidoux Nature Center, along drainage that connects to Sunnyslope Channel, and to the confluence with the Santa Ana River
213
Comment
UCR72815 Polygonum hydropiperoides
A. C. Sanders
1992-8-23
12467
San Bernardino
San Bernardino Mtns., Oak Glen, Riley's Farm on E side of Oak Glen Road c. 2 mi above Wildwood Canyon Road
1372
Comment
CDA2781 Polygonum hydropiperoides
Jerome Dunnicliff
1979-10-1
Kings
14th and Iona Avenues, southwest of Armona.
0
Comment
CDA2782 Polygonum hydropiperoides
J. B. Gianelli
1972-10-15
San Joaquin
South bank of Bear Creek, 100 yards south of Airport Way, Stockton.
0
Comment
POM156152 Polygonum hydropiperoides
L. R. Abrams
1904-9-2
4186
Los Angeles
Los Angeles River.
Comment
POM196320 Polygonum hydropiperoides
E. E. Stanford
1929-10-25
1176
San Joaquin
Near Stockton
Comment
POM312910 Polygonum hydropiperoides
H. L. Mason
1928-9-30
4971
San Joaquin
San Joaquin Delta near Holt.
Comment
POM312911 Polygonum hydropiperoides
S. Galen Smith, Malcolm A. Nobs
1949-9-9
1857 a
Lake
Marshy stream bank at Scott Creek, Bridge 1431 NW end of Clear Lake
Comment
POM50451 Polygonum hydropiperoides
L. R. Abrams
1901-08
2187
Los Angeles
Ballona Creek.
Comment
RSA161326 Polygonum hydropiperoides
Peter H. Raven
1961-8-27
16614
Merced
Along Merced River near bridge below Snelling.
Comment
RSA234545 Polygonum hydropiperoides
Peter Rubtzoff
1958-8-31
3954
Sonoma
Atascadero Creek Marsh.
Comment
RSA234546 Polygonum hydropiperoides
Peter Rubtzoff
1955-8-27
2099
Sonoma
Bennett Mtn Lake.
Comment
RSA2441 Polygonum hydropiperoides
J. W. Blankinship
1928-9-17
s.n.
Lake
Lakeport.
Comment
RSA30998 Polygonum hydropiperoides
R. C. Bacigalupi, I. L. Wiggins, Roxana S. Ferris
1941-7-29
2688
Fresno
Alkaline pools, 2 miles W of Tranquility jct on Hwy 180
Comment
RSA44348 Polygonum hydropiperoides
W. I. Follett
1948-10-29
s.n.
Kings
Kings River 7 miles N of Hanford
Comment
RSA653385 Polygonum hydropiperoides
LeRoy Gross
2000-8-25
262
Los Angeles
Big Tujunga Wash/ Verdugo Mountains: Orcas Park, entered from Foothill Blvd onto Orcas Ave. Hiked west from park, heading toward Hansen Dam.
325
Comment
RSA81706 Polygonum hydropiperoides
Roxana S. Ferris, Rimo Bacigalupi
1951-8-24
12435
Fresno
Edge of ditch on General Grant Grove Hwy just E of Centerville
Comment
RSA94326 Polygonum hydropiperoides
Peter Rubtzoff
1951-9-2
711
Sonoma
N of the Lower marsh, in the creek
Comment
RSA94327 Polygonum hydropiperoides
Peter Rubtzoff
1951-7-1
349
Sonoma
Margin of Creek at Hwy 12, SE of Forestville
Comment
RSA97519 Polygonum hydropiperoides
Beecher Crampton
1954-8-3
2229
Sacramento
Along the road to Franklin, 5 miles S of Sacramento, Sacramento County
Comment
SEINET10479646 Polygonum hydropiperoides
Lowell Ahart
1991-9-14
Ahart 6715
Butte
On the sides of a large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14.
46
Comment
SEINET10479647 Polygonum hydropiperoides
Lowell Ahart
1991-9-14
Ahart 6716
Butte
On the sides of a large reservoir, Joie Osgood Ranch, about 2 miles east of Honcut. Valley Grassland. T17N R4E S/C/S14.
46
Comment
SEINET11933017 Polygonum hydropiperoides
W. Knight, Knight, I.
1983-1
4882
Lake
From pond section of Tilden Botanic Garden, in Contra Costa Co. Originally collected in 1982 at
305
Comment
UC1101168 Polygonum hydropiperoides
Malcolm A. Nobs and S. Galen Smith
1949-8-19
1426
Plumas
on Hwy 89 2 mi s Crescent Mills (pond in river, s end of valley); Indian Valley
Comment
UC1101176 Polygonum hydropiperoides
Herbert L. Mason
August 1930
5721
Lake
Clear Lake; along shores
Comment
UC1176914 Polygonum hydropiperoides
John Thomas Howell
1945-10-14
Marin
Olema Meadows
Comment
GH36704 Polygonum hydropiperoides var. asperifolium
J. C. Nevin
1904-1-1
2
Unknown
East Los Angeles
Comment
RSA0042551 Polygonum hydropiperoides var. asperifolium
Samuel Bonsal Parish
1910-9-10
5099
San Bernardino
Near San Bernardino.
304
Comment
RSA65870 Polygonum hydropiperoides var. asperifolium
F. W. Peirson
1923-1-21
1792
Los Angeles
Pond north of East Lake Park, Los Angeles.
Comment
SEINET10937606 Polygonum hydropiperoides var. asperifolium
Mary Susan Taylor
1978-9-8
Taylor 1883
Butte
Along flood control slough, ca. 4 mi N of Chico, along Hwy 99.
61
Comment
