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Pentagramma
Pentagramma is a small genus of North American ferns in the family Pteridaceae. Until 1990 members of this genus were included in Pityrogramma, and there has been considerable disagreement regarding the species' taxonomy. In the most recent treatment, six diploid species are recognized.
The distribution of P. triangularis (goldback fern) extends from British Columbia through the western United States into Baja California in northwestern Mexico. Pentagramma maxonii occurs in New Mexico, Arizona, Sonora, Baja California Sur, California, and Baja California. All other species are restricted to California and Baja California.
6 branches of this genus, most-observed first
goldback fern
speciesPentagramma triangularis
San Diego Silverback Fern
speciesPentagramma glanduloviscida
Sticky goldback fern
speciesPentagramma viscosa
Rebman's Silverback Fern
speciesPentagramma rebmanii
Maxon's Goldback Fern
speciesPentagramma maxonii
Pale Silverback Fern
speciesPentagramma pallida
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Pentagramma in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 52677.