Aphanostephus ramosissimus var. humilis (Benth.) B.A.Birdsong
Asteraceae
J. M. Bigelow
494
s.d.
United States of America, Texas, Chiefly in the Valley of the Rio Grande. Near Rio Grande.
sheet
Mexican Boundary Survey. Collected under the direction of Major W. H. Emory, Commissioner, chiefly in the Valley of the Rio Grande, below DoƱana- by C.C. Parry, M.D., J.M. Bigelow, M.D., Mr. Charles Wright, and Mr. A. Schott