Flora of Scotts Creek Watershed
Pentagramma triangularis - Goldback Fern
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Family Name: Pteridaceae
Common Names: Goldback Fern, Goldenback Fern, Silverback Fern
Origin: Native to California
Habitat: Rocky areas and in crevices, shaded slopes, drier sites. Below 2300 m.
Life Form and Duration: Perennial Fern, 6-40 cm
Comments on overall growth: Many erect fronds clustered together. Rhizomatous, rhizomes short, densely covered with blackish scales, 3-5 mm wide, ascending at tips.
Foliage Description: Fronds with long stipes (stalks) that are thin and wiry, smooth, shiny, red brown when young aging to blackish, generally twice as long as the blades. Fronds are triangular shaped, 1-2 times pinnate, 3-10 cm long, upper surface pale to dark green. Lower surface powdery yellow due to dense coating of yellow exudate (farina). Fronds shrivel up during dry periods.
Indusia and Sori Description: Sporangia are scatted along veins, lacks covering indusia.
Spore Production: June-August
Other Comments: Fronds can be slapped against your jeans or other dark material to leave a golden print.