Ambrosia artemisiifolia L.

The New York

Botanical Garden copyright reserved

Ocm 1

10

Mississippi River-Navigation Pool 8
,	Mil« 691-702.5

HERBARIUM OF
THE UNIVERSITY OF WISCONSIN-LA CROSSE
La Crosse, Wisconsin
Plants of Dredge Spoil Sites

Ambrosia artemisiifolia L.

(Compositae)

Minnesota, Houston Co.; Island 22; Mississippi River-
mile #700; T104N R4W Sec 2

Age of dredge material-5 yr; Approx. elevation-636 ft,
Normal Pool elevation-631 ft. Large island E side of
main channel; specimen growing on sandy bank at edge
of beach adjacent to main channel; north end of island

w'

BOTANICAL

Garde*4

Date

01877992

3 Oct 1975

01877992