Persicaria opelousana (Riddell ex Small) Small

lot
Mississippi River-Navigation Pool
N Mile 679.2-692
HERBARIUM OF
THE UNIVERSITY OF WISCONSIN-LA CROSSE
La Crosse, Wisconsin
FLORISTIC STUDY OF THE MISSISSIPPI RIVER
(NAVIGATION POOL #8)
Polygonum opelousanum Ridd.
Wis., Vernon Co., Site 61, cpen Acer-Ulmns forest;
Phalaris daninated portions around and with forest;
S end a dry emergent carmunity. White flowers, bushy
plant growing on upturned earth of fallen tree with
Solanum, Seutellaria, Verbena, Amarauth.
Coll: STEVEN D. SWANSON No. 2274	Date:
FUNDED BY THE ARMY CORPS OF ENGINEERS
15 Sep 1975
03138569