Observations on stengelioid species of Vernonia
By: by C. Earle Smith, Jr.
Series: Agriculture handbook no. 396; Agriculture handbook (United States. Dept. of Agriculture) ;; no. 396.
Publisher: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 87
Subjects: Vernonia.; Botany -- Africa.
Notes: Bibliography: p. 85.