The Mexican whorled milkweed (Asclepias mexicana) as a poisonous plant
By: by C. Dwight Marsh and A.B. Clawson
Contributors: Clawson, A. B.
Series: Bulletin / United States Department of Agriculture -- no. 969; Bulletin of the U.S. Department of Agriculture -- no. 969.
Publisher: U.S. Dept. of Agriculture
Published: 1921
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Livestock poisoning plants; Milkweeds
Description: Literature cited. pp. 16.
Notes: "Professional paper."

Caption title.

"Contribution from the Bureau of Animal Industry."

"October 6, 1921"