Winter twigs
Subtitle: a wintertime key to deciduous trees and shrubs of northwestern Oregon and western Washington
By: by Helen M. Gilkey [and] Patricia L. Packard. Plates Ilj.jlkawnsh.kjfHKB-XIV inclusive by Patricia L. Packard, other drawings by Helen M. Gilkey.
Contributors: Packard, Patricia L., joint author.
Series: Oregon State monographs.; no. 12
Publisher: Oregon State University Press
Published: 1962
Place of publication: Corvallis
Language: eng
Number of pages: 109
Subjects: Trees -- Oregon -- Identification.; Trees -- Washington (State) -- Identification.; Shrubs -- Oregon -- Identification.; Shrubs -- Washington (State) -- Identification.; Twigs -- Oregon -- Identification.; Twigs -- Washington (State) -- Identification.; Trees in winter -- Oregon -- Identification.; Trees in winter -- Washington (State) -- Identification.
Genres: Identification.