Silverback Fern (Pentagramma triangularis ssp. )

Pentagramma triangularis is a fern, commonly known as goldback fern, native to Western North America, including California. It is commonly found in mixed evergreen and oak forests, occasionally on dry brushy slopes, and prefers shaded areas

Subspecies

    P. triangularis subsp. semipallida (J. Howell) G. Yatsk. et al. — pale gold back fern
    P. triangularis subsp. triangularis

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