Parietaria pensylvanica Muhl.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Urticaceae
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Scientific Name
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Description
Species Description - Pubescent annual, erect or ascending, 1–4 dm; lvs petioled, thin, lanceolate, 3–8 cm, acuminate, entire, 3-nerved from above the cuneate base, obscurely scabrellate above; fls from the middle and upper axils; bracts lance-linear, 5 mm; achenes smooth, shining, ovoid, 1 mm, somewhat 2-edged; 2n=14. Dry woods and moist banks, sometimes weedy; Me. to B.C., s. to Va., Ala., Tex., and Nev. June–Sept.