Ambrosia artemisiifolia var. elatior (L.) Descourtils
Asteraceae
Allen, K
Mengler, J
279
1986-09-03
9/3/1986
Squires, L; Murray, R
United States, Illinois, Lake, Des Plaines River Wetlands Demonstration Project, Wadsworth, SE of Wadsworth Rd & Rt 41 jct. Collected from flat of seed bank material grown in a cold-frame at the000 an old field.