Key to the Gymnosperms of the Southeastern U.S. -
Key to the Pines (Pinus)
Seed cones symmetric or nearly symmetric


Bark of 2-4-year-old twigs is covered
with strongly exfoliating scales

OR

Bark of 2-4-year-old twigs is not covered
with strongly exfoliating scales

Hand lens
Bark of 2-4-year-old twigs with strongly exfoliating scales (close-up image) Bark of 2-4-year-old twigs without strongly exfoliating scales (close-up image)
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