A bud and twig key to the more important broadleaf deciduous trees in the United States
By: by O. L. Sponsler.
Edition: Rev.
Publisher: G. Wahr
Published: 1916
Place of publication: Ann Arbor, Mich
Language: eng
Number of pages: 26
Subjects: Trees -- United States -- Identification.; Buds -- United States -- Identification.; Trees -- Identification.
Notes: "The key was first published in 1911 in the Nebraska forest club annual."