Alnus incana subsp. rugosa (Du Roi) R.T.Clausen

The New York Botanical Garden
Plants of U.S.A.
Betulaceae
Alnus incana (L.) Moench (=Alnus rugosa),
det. M. Nee, 1993
Wisconsin, Richland Co., 3 miles SE of Richland
Center. T 10 N; R 1 E; SE^NEi 35.
Low areas in Pine River flood plain, old field
with invasion of Alnus incana (=rugosa). Acer
saccharin um.
Shrubs to 5 m. tall, 6 cm. in diameter, in loose
clumps of several stems; bark smooth, with
prominent horizontal lenticels. "Fruit" green.
Voucher for bulk medicinal screening by Pfizer:
43690a WS (Nee-314); 43690b BS (Nee-315);
43690c LF+TW+IF (Nee-316).
Coll.: M. Nee 43690
8 Aug. 1993
02471927