POLYGONACEAE (Buckwheat family)

Brunnichia ovata (Walt.) Shinners American buckwheat vine [US; Missouri; Mississippi County; Anniston; T25N, R16E, S15; 36 deg. 49.163'N, 89 deg. 18.431'W; 320 feet] [1 m down (south) embankment of Road DD, 5 m east of Birds Point New Madrid Levee, one mile southeast of Anniston; September 14, 2002; Collected & identified by Chuck Walker; #MO05]

Brunnichia ovata (Walt.) Shinners American buckwheat vine [US; Mississippi; Washington County; Leland; T18N, R7W, S15; 33 deg. 24.753'N, 90 deg. 54.631'W; 125 feet] [in trees on the south side of R. S. Power Rd., at its intersection with Experimental Farm Rd.; Collected & identified by Chuck Walker; #MS144]

Coccoloba uvifera (L.) L. seagrape [US; Florida; Monroe County; Marathon; T66S, R32E, S11; 5 feet][along #931, close to Sombrero Blvd.; December 22, 1997; Collected & identified by Chuck Walker; #FL07]

Eriogonum alatum Torr. winged buckwheat [US; Arizona; Yavapai County; Prescott; T14N, R2W, S34; 5,340 feet][on hillside northwest of Roughrider baseball field, Yavapai College; July 30, 1996; Collected & identified by Chuck Walker; #AZ344]

Eriogonum caespitosum Nutt. matted buckwheat [US; California; Lassen County; T32N, R17E, S26; 40 deg. 39.324�N, 120 deg. 4.389�W; 5,000 feet][along 4WD road, sagebrush flat, 2.5 miles southeast of Shinn Ranch; June 7, 2005; Collected & identified by Chuck Walker; #CA239]

Eriogonum fasciculatum Benth. Eastern Mojave buckwheat [US; Arizona; Yavapai County; T13N, R3E, S14; 4,450 feet][south side of dirt road, 300 m east of Highway 169 and I-17 intersection; July 17, 1995; Collected & identified by Chuck Walker; #AZ204]

Eriogonum ovalifolium Nutt. var. ovalifolium cushion buckwheat [US; California; Lassen County; T32N, R17E, S26; 40 deg. 39.324�N, 120 deg. 4.389�W; 5,000 feet][along 4WD road, sagebrush flat, 2.5 miles southeast of Shinn Ranch; June 7, 2005; Collected & identified by Chuck Walker; #CA240]

Eriogonum pharnaceoides Torr. wirestem buckwheat [US; Arizona; Yavapai County; T16N, R6W, S22; 5,320 feet][by Live Oak Corrals, Cottonwood Canyon, off Camp Wood Rd., six miles from Williamson Valley Rd., 22 miles from Prescott; September 17, 1995; Collected & identified by Chuck Walker; #AZ225]

Eriogonum polycladon Benth. sorrel buckwheat [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,370 feet][east side of 400 block of S. Montezuma St.; June 13, 1996; Collected & identified by Chuck Walker; #AZ314]

Eriogonum sphaerocephalum Dougl. ex Benth. var. halimioides S. Stokes rock buckwheat [US; California; Lassen County; T37N, R7E, S34; 41 deg. 0.335'N, 121 deg. 9.530'W; 4,180 feet][open area of sagebrush flat, above drainage into the western edge of Pitt River, Muck Valley; July 11, 2005; Collected by Lisa Anderson & Chuck Walker; Identified by Chuck Walker; #CA281]

Eriogonum tripodum Greene tripod buckwheat [US; California; Lassen County; T38N, R6E, S5; 41 deg. 9.507'N, 121 deg. 17.813'W; 6,320 feet][top of Widow Mountain; August 25, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA113]

Eriogonum umbellatum Torr. sulphur-flower buckwheat [US; Arizona; Yavapai County; Prescott; T13N, R2W, S7; 5,900 feet] [200 m southwest of Aspen Acres Dr., downstream from the waterfall, Rancho Vista Hills; April 20, 1997; Collected & identified by Debby Denny & Chuck Walker; #AZ434]

Eriogonum umbellatum Torr. var. nevadense Gandog. sulphur-flower buckwheat [US; California; Lassen County; T36N, R11E, S9; 40 deg. 58.577'N, 120 deg. 43.198'W; 6,400 feet][along four wheel drive road, South Knob allotment; July 14, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA51]

Eriogonum vimineum Dougl. ex Benthe. wickerstem buckwheat [US; California; Modoc County; T43N, R12E, S7; 41 deg. 34.690'N, 120 deg. 37.560'W; 4,900 feet][alongside dam, Big Sage Reservoir; July 26, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA82]

Eriogonum wrightii Torr. ex Benth. bastardsage [US; Arizona; Yavapai County; T16N, R6W, S22; 5,320 feet][by Live Oak Corrals, Cottonwood Canyon, off Camp Wood Rd., six miles from Williamson Valley Rd., 22 miles from Prescott; September 17, 1995; Collected & identified by Chuck Walker; #AZ226]

Fagopyrum esculentum Moench buckwheat [US; Illinois; Calhoun County; Brussels; T13S, R1W, S16; 430 feet][west side of dike, Office Moist Soil Unit,northeast of Two Rivers National Wildlife Refuge Office; June 14, 2000; Collected & identified by Chuck Walker; #IL04]

Persicaria microcephala (D.Don) Sasaki fleece flower or tovara [Origin: China] [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 37 deg. 42.883'N, 89 deg. 13.328'W; 450 feet][North House, Plant Biology Greenhouse, Southern Illinois University; April 25, 2004; Collected by Chuck Walker; Identified by Richard Cole; #IL642]

Polygonum amphibium L. water knotweed [US; Iowa; Fremont County; Riverton; T68N, R41W, S16; 950 feet][along turn in road #313, 1.8 miles north of turn-off to Riverton Check Station, parking area for blind, Riverton Wildlife Management Area; July 3, 1999; Collected & identified by Chuck Walker; #IA40]

Polygonum arenastrum Jord. ex Boreau oval-leaf knotweed [US; California; Modoc County; T42N, R12E, S11; 41 deg. 29.439'N, 120 deg. 32.978'W; 4,400 feet][along West C Street; July 22, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA78]

Polygonum aviculare L. prostrate knotweed [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,360 feet][alley between 200 blocks of S. Cortez St. and S. Marina St.; June 28, 1995; Collected & identified by Chuck Walker; #AZ182]

Polygonum bistortoides Pursh American bistort [US; California; Modoc County; T40N, R6E, S36; 41 deg. 15.647'N, 121 deg. 13.714'W; 4,200 feet][wet meadow, west side of Road #95, 0.4 miles northeast of Lookout Junction; May 29, 2005; Collected & identified by Chuck Walker; #CA232]

Polygonum caespitosum Blume oriental ladysthumb [US; Pennsylvania; Erie County; Erie; 620 feet][along railroad tracks near Public Dock on Bayfront Highway; September 13, 1998; Collected & identified by Chuck Walker; #PA15]

Polygonum caespitosum Blume var. longisetum (de Bruyn) A.N. Steward Oriental ladysthumb [US; Mississippi; Washington County; T18N, R7W, S15; 33 deg. 24.597'N, 90 deg. 54.603'W; 110 feet][along the western (southern) edge of Deer Creek, Leland; October 7, 2007; Collected & identified by Chuck Walker; #MS130]

Polygonum convolvulus L. black bindweed [US; Washington; Spokane County; Spokane; T25N, R43E, S29; 2,240 feet][Ferris Perennial Garden, Manito Park; August 13, 1998; Collected & identified by Chuck Walker; #WA103]

Polygonum cuspidatum Sieb. & Zucc. Japanese knotweed [US; Pennsylvania; Erie County; Erie; 620 feet][along railroad tracks near Public Dock on Bayfront Highway; September 13, 1998; Collected & identified by Chuck Walker; #PA16]

Polygonum erectum L. erect knotweed [US; Mississippi; Sharkey County; T11N, R5W, S34; 95 feet] [edge of forest in agricultural field, about four miles south of Holly Bluff on Delta National Forest, compartment 39; May 9, 2006; Collected & identified by Danny Skojac; #01293]

Polygonum hydropiperoides Michx. swamp smartweed [US; Illinois; Jackson County; Carbondale; T9S, R1W, S20; 410 feet][Green Earth Wetland; September 4, 2001; Collected by Heidi Hartman; Identified by Chuck Walker; #IL251]

Polygonum hydropiperoides Michx. swamp smartweed [US; Arkansas; Drew County; Collins; T14S, R4W, S32; 33 deg. 26.87'N, 91 deg. 32.51'W; 120 feet][along west side of boat launch, Camping Area 1, Cut-Off Creek Wildlife Management Area; May 28, 2006; Collected & identified by Chuck Walker; #AR13]

Polygonum lapathifolium L. curlytop knotweed [US; Iowa; Fremont County; Riverton; T68N, R41W, S18; 930 feet][along edge of cornfield, 50 m west of turn-off to Riverton Check Station; Riverton Wildlife Management Area; July 5, 1999; Collected & identified by Chuck Walker; #IA53]

Polygonum pensylvanicum L. Pennsylvania smartweed [US; Illinois; Calhoun County; Brussels; T12S, R1W, S31; 425 feet][two miles southeast of Pump Station, Middle Swan Lake; Two Rivers National Wildlife Refuge; June 17, 2000; Collected & identified by Chuck Walker; #IL07]

Polygonum persicaria L. spotted ladysthumb [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,300 feet][in Granite Creek downstream from Leroux St.; August 18, 1995; Collected & identified by Chuck Walker; #AZ217]

Polygonum polygaloides Wallich ex Meisn. ssp. confertiflorum (Nutt. ex Piper) Hickman fruitleaf knotweed [US; California; Modoc County; T39N, R7E, S10; 41 deg. 13.786'N, 121 deg. 8.866'W; 4,180 feet][dirt road that dead-ends on the south-central portion of Lower Roberts Reservoir; July 7, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Mike Dolan; #CA39]

Polygonum punctatum Ell. dotted smartweed [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R9W, S12; 15 feet][along Minton Dr. (it runs parallel and is south of Giovannia St.; March 24, 2000; Collected & identified by Chuck Walker; #LA229]

Polygonum punctatum Ell. dotted smartweed [US; Illinois; Calhoun County; Batchtown; T11S, R2W, S31; 435 feet][water's edge at boat launch at Prairie Lake Recreational Area, Batchtown Division, Two Rivers National Wildlife Refuge; August 27, 2000; Collected & identified by Chuck Walker; #IL70]

Polygonum ramosissimum Michx. bushy knotweed [US; Iowa; Fremont County; Riverton; T68N, R41W, S18; 930 feet][west side of #313, 2nd curve north of turn-off to Riverton Check Station, Riverton Wildlife Management Area; August 7, 1999; Collected & identified by Chuck Walker; #IA93]

Polygonum sagittatum L. arrowleaf tearthumb [US; Wisconsin Ashland County; T45N, R2W, S15; 1,180 feet][Glen Colver farm, east side of Highway 169, one mile north of Becker Road, 4.5 miles northeast of Mellen; September 8, 2001; Collected & identified by Chuck Walker; #WI31]

Polygonum scandens L. climbing false buckwheat [US; Illinois; Calhoun County; Batchtown; T11S, R2W, S31; 435 feet][along Refuge access road, 50 m downstream from boat launch on Mississippi River, Batchtown Division, Two Rivers National Wildlife Refuge; August 27, 2000; Collected & identified by Chuck Walker; #IL71]

Polygonum virginianum L. jumpseed [US; Iowa; Fremont County; T68N; R42W, S29; 1,250 feet][behind large Civilian Conservation Corp shelter, Waubonsie State Park; August 28, 1999; Collected & identified by Chuck Walker; #IA116]

Rumex acetosella L. common sheep sorrel [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 440 feet][edge of woods, west of Abe Martin Field, Southern Illinois University; May 26, 2001; Collected & identified by Chuck Walker; #IL145]

Rumex altissimus Wood pale dock [US; Iowa; Fremont County; Riverton; T68N, R41W, S25; 920 feet][along County Rd. J46 (225 St.) near turn-off (313 Ave.) into Riverton Wildlife Management Area; July 18, 1999; Collected & identified by Chuck Walker; #IA69]

Rumex aquaticus L. var. fenestratus (Greene) Dorn western dock [US; Arizona; Yavapai County; Mayer; T12N, R1W, S28; 5,580 feet][creekbed by campgrounds near Senator Highway (Rd. 52)-Rd. 67 intersection, ten miles from Mayer; July 12, 1997; Collected & identified by Chuck Walker; #AZ466]

Rumex crispus L. curly dock [US; Arizona; Yavapai County; Prescott; T13N, R2W, S9; 5,400 feet][along Granite Creek, by Clubhouse Dr.-White Spar Rd. intersection; June 2, 1993; Collected & identified by Chuck Walker; #AZ102]

Rumex hastatulus Baldw. heartwing sorrel [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R9W, S17; 15 feet][outside corner of S. Walton St.-E. Walton St. intersection; April 6, 2000; Collected & identified by Chuck Walker; #LA240]

Rumex hastatulus Baldw. heartwing sorrel [US; Arkansas; Woodruff County; Fitzhugh; T8N, R4W, S12; 35 deg. 20.19'N, 91 deg. 21.79'W; 210 feet][in sandy soil, ca. 1.3 miles north of Augusta, ca. 2.9 miles north of US Highway #64 on west side of AR Highway #33; May 18, 2006; Collected & identified by Danny Skojac; #01303]

Rumex hymenosepalus Torr. canaigre dock [US; Arizona; Gila County; Winkelman; T9S, R15E, S12; 1,920 feet][in sand on west side of Gila River, one mile upstream from Winkelman; April 3, 1993; Collected & identified by Chuck Walker; #AZ53]

Rumex obtusifolius L. bitter dock [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 450 feet][along pathway in Thompson Woods, 15 m west of Faner Hall, Southern Illinois University; May 26, 2002; Collected & identified by Chuck Walker; #IL286]

Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L. Hitchc. Mexican dock [US; Arizona; Yavapai County; Paulden; T17N, R2W, S12; 4,200 feet][in mass of vegetation at water's edge, 0.5 miles downstream from where Granite Creek flows into the Verde River; August 25, 1996; Collected & identified by Chuck Walker; #AZ393]

Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L. Hitchc. Mexican dock [US; California; Modoc County; T43N, R12E, S7; 41 deg. 34.63'N, 120 deg. 37.57'W; 4,900 feet][growing alongside east side of outlet from Big Sage Reservoir; July 26, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA84]

Rumex verticillatus L. swamp dock [US; Illinois; Jersey County; Grafeeton; T6N, R13W, S13; 420 feet][east end of Gilbert Lake, Two Rivers National Wildlife Refuge; June 18, 2000; Collected & identified by Chuck Walker; #IL15]

Rumex verticillatus L. swamp dock [US; Mississippi; Washington County; T19N, R7W, S33; 115 feet] [along west side of road in Delta Experimental Forest, about three miles north of Stoneville; April 27, 2006; Collected by Chuck Walker; Identified by Danny Skojac; #MS78]