Polygonum achoreum S.F.Blake

THE UNIVERSITY OF GUELPH HERBARIUM
Polygonum achoreum Blake
Det. Mihai Costea	2002	^4
U3
PLANTS OF ILLINOIS, USA
Polygonum erectum L.
det.: S.R. Hill, Dec. 2000 Polygonaceae
ILLINOIS: LASALLE COUNTY ca. 41° 18' 26" N, 88° 56
17" W; Starved Rock 7.5 min. quad.; T. 33 N, R. 2 E,
SW/4, SW/4, SE/4, SE/4, sect. 24. Starved Rock State
Park; vicinity of EL Rt. 71 bridge crossing over Salt Well
Stream, SW quadrant, near eastern park boundary. S side
of Illinois River. Deer Park township (9 km SW of
Ottawa). Elev. 460-470 ft. Disturbed, clay-loam alluvial
soil and road fill.
Shrubland, floodplain forest and roadside, all degraded.
Flowers inconspicuous, greenish; infrequent
bushy-branched erect to ascending herb at SW comer of
parking lot.
Steven R. Hill 33151	7 September 2000
NEW YORK BOTANICALGARDEN
03140735
03140735