Pentagramma triangularis: Goldback Fern

Pentagramma triangularis, the Goldback Fern (formerly Pityrogramma triangularis), is a small, delicate, evergreen fern native to western North America. It forms a loose clump of triangular, tripinnate fronds that are bright green above and densely coated underneath in a brilliant, golden-yellow to white powder (farina). The stipe and rachis are dark, wiry, and shiny. It grows on dry, shaded rock faces and banks.

Plant Profile

Goldback Fern requires cool, moist winters and dry summers (Mediterranean climate). It grows in shade on well-drained, often rocky soil. The brilliant gold farina on the underside is a stunning adaptation to summer drought. It is perfect for rock gardens, crevices, and walls in West Coast and similar climates. The triangular frond shape is distinctive. A jewel for the native plant garden.