Genus
Pentagramma
Pentagramma triangularis triangularis. Photo: (c) Jim Morefield, some rights reserved (CC BY)
Pentagramma is a small genus of North American ferns. Until 1990 members of this genus were included in Pityrogramma, and agreement has not yet been reached regarding the species’ taxonomy. There are one to three species, with two species commonly described and named Pentagramma pallida and P. triangularis.
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