Identification of this plant?
[Not really a precise answer (and I'm not a botanist after all).]

It's likely a lycopodiophyte. Looks like a Huperzia species, but it's impossible to tell exactly from the provided photo [if the species is not familiar, of course]. Of great help would be general appearance of the plant and form of sporangia.

You can try this key: Lycopodiaceae of North America.