Ambrosia psilostachya DC.

The New York

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The New York Botanical Garden
Plants of U.S.A.

Asteraceae

Ambrosia psilostachya DC.
det. M. Nee, 1993

Richland Co., Wisconsin, 3 miles SE of Richland
Center. T 10 N; R 1 E; NW^NW* sect. 36.

Several large colonies (clones?!) on dry S-
facing pasture slope, with Poa, Agropvron
repens. Verbena stricta.

Voucher for bulk medicinal screening by Pfizer:
43730a PX (Nee-371).

Coll.: M. Nee 43730

Aug. 11, 1993

01884197