Title
Description
Mature, unopened 2nd year cones. Some mature cones open upon maturity. Others remain on the tree for many years without opening. Fire or temperatures above 120° F will initiate opening and dispersal of the seeds.
Preview
![image preview](https://dc.cod.edu/horticulture-2242-pinus-banksiana/1006/preview.jpg)
Image Source
Karren Wcisel, TreeTopics.com
Image Creation Date
11-27-2009
Keywords
Pinaceae, tree, conifer, cone, needle, evergreen, Pinus banksiana, jack pine