Pentagramma

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Pentagramma
Pentagramma triangularis 1.jpg
Pentagramma triangularis
Scientific classification e
Kingdom: Plantae
Division: Pteridophyta
Class: Polypodiopsida/Pteridopsida
(disputed)
Order: Polypodiales
Family: Pteridaceae
Subfamily: Cheilanthoideae
Genus: Pentagramma
Yatsk., Windham & E.Wollenw.
Species

See text.

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.[1] There are one to three species, with two species commonly described and named Pentagramma pallida and P. triangularis.[1]

The distribution of P. triangularis (goldback fern) extends from British Columbia through the southwestern United States into northwestern Mexico,[2] while P. pallida (pale silverback fern) is limited to the high mountains of California.

Species[edit]

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