Pentagramma triangularis

Pentagramma triangularis is a fern, commonly known as goldback fern, native to Western North America, including California.[2]

Pentagramma triangularis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Family: Pteridaceae
Genus: Pentagramma
Species:
P. triangularis
Binomial name
Pentagramma triangularis
(Kaulf.) Yatsk., Windham & E. Wollenw.
Synonyms[1]
  • Ceropteris triangularis (Kaulf.) Underw.
  • Gymnogramma triangularis Kaulf.
  • Gymnopteris triangularis Underw.
  • Hemionitis triangularis (Kaulf.) Christenh.
  • Neurogramma triangularis Diels
  • Pityrogramma triangularis Maxon

It is commonly found in mixed evergreen and oak forests, occasionally on dry brushy slopes, and prefers shaded areas[3]

Subspecies
  • P. triangularis subsp. semipallida (J. Howell) G. Yatsk. et al. — pale gold back fern [4]
  • P. triangularis subsp. triangularis

Some taxa formerly considered subspecies of P. triangularis have been raised to species rank in Pentagramma.

References
  1. "Hemionitis triangularis (Kaulf.) Christenh". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2020-01-05.
  2. Calflora . accessed 2.12.2013
  3. K. Lyons and Cuneo-Lazaneo, M.B. 1988. Plants of the Coast Redwood Region. Shoreline Press, Soquel, CA.
  4. Calflora: Pentagramma triangularis ssp. semipallida'
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