Gary Fewless

Key to Lycopodiaceae

5. Branches appearing somewhat squarrish, rather than broadly flattened; often conspicuously blue-green in color; all leaves about the same size; ultimate branches 1-2.2 mm wide.

Diphasiastrum tristachyum

5. Branches strongly flattened; green; leaves on the flat underside of branches shorter than the other leaves; ultimate branches 1.8-4 mm wide.
6

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