Polypodium formosanum Baker

Grub Fern

Rhizomes about 3 mm wide and covered with a whitish bloom; scales soon shed. Fronds mostly 30-60 cm long. Segments usually 5-7 cm long, lowest pair bent downwards, margins toothless, upper surface main ribs hairy. Sori round.

Can grow in cool areas.

Taiwan, China, Japan.

Rhizome with whitish bloom.

Source: Spencer, R. (1995). Polypodiaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.