Jack pine cones in slash open in midsummer
Series: Technical notes / Lake States Forest Experiment Station -- no. 165; Technical notes (Lake States Forest Experiment Station (Saint Paul, Minn.)) -- no. 165.
Publisher: Lake States Forest Experiment Station, University Farm
Published: 1940
Place of publication: St. Paul, Minn
Language: eng
Subjects: Seed cones; Pinus banksiana; Seeds; Jack pine
Notes: Caption title.