Male White Pine Cones Opening Up & Releasing Pollen

Itchy eyes, runny nose and scratchy throat may have told you that this is a banner year for tree pollen. White Pines (Pinus strobus) get much of the credit. They bear both male and female cones on the same tree (monoecious), as do most conifers.  The familiar female (seed) cones are between four and eight…

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