Provisional tree seed zones and transfer guidelines for Alaska
By: John N. Alden.
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW -- 270.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1991
Place of publication: [Portland Or.]
Language: eng
Number of pages: 35
Subjects: Seeds -- Protection -- Alaska; Endangered plants -- Alaska; Forest microclimatology -- Alaska
Notes: Cover title.

"May 1991."

1 folded leaf of map in pocket.

Includes bibliographical references (p. 31-35).