Key to the Gymnosperms of the Southeastern U.S. -
Needles alternate


Needles are less than 1 mm. (0.04 in.)
wide, 3 - 19 mm. (1/8 - 3/4 in.) long,
and are deciduous

OR

Needles are 1 mm. (0.04 in.) or more wide,
10 - 80 mm. (3/8 - 3 1/8 in.) long,
and are evergreen

Needles less than 1 mm. wide, 3-19 mm. long, deciduous (close-up image) Needles 1 mm. or more wide, 10-80 mm. long, evergreen (close-up image)
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