Key to the Gymnosperms of the Southeastern U.S. -
Key to the Pines (Pinus)
Needles not strongly twisted, and 3-13 cm. long


Twigs are roughened or cracking below the leafy portion;
needles are 5-13 cm. (2 - 5 1/8 in.) long, sometimes
in bundles of 2 and 3 on the same tree;
bark plates have small resin pockets -
Shortleaf pine (Pinus echinata)

OR

Twigs are relatively smooth below the leafy portion;
needles are 3-10 cm. (1 1/8 - 4 in.)
long, in bundles of 2 only;
bark plates lack resin pockets

Hand lens
Needles 5-13 cm long Twigs roughened or cracking below the leafy portion (close-up image) Twigs relatively smooth below the leafy portion (close-up image) Needles 3-10 cm long
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