Eupatorium rugosum Houtt.

HERBARIUM OF
THE UNIVERSITY OF WISCONSIN-LA CROSSE
La Crosse, Wisconsin
Plants of Dredge Spoil Sites
Eupatorium rugosum Houtt.
(Compositae)
Minnesota, Houston Co.; Island 12; Mississippi River-
mile #690.5; T103N R4W Sec 13
Age of dredge material-6 yr; Approx. elevation-633 ft,
Normal Pool elevation-631 ft. Island on W side of main
channel; specimen growing on south end of island in
small, open area of moist sand between Salix community
to the west and alluvial forest to the east
Coll: S.R. Ziegler No- 2745 Date: 17 $ept 1975
M.F. Levkom
Mississippi River-Navigation Pool 8
i m N Mile 679.2-692
02869894