Asplenium flexuosum Schrad.

Rhizome erect, c. 30 mm in diameter, set with very dark brown, lanceolate, acuminate, shortly ciliate-fimbriate rhizome-scales c. 8 mm long. Fronds tufted, thinly coriaceous, some fronds gemmiferous; stipe greenish, becoming somewhat stramineous on drying, set at first with scattered sinuose, hair-like scales; lamina ovate-lanceolate, up to 620 x 190 mm, pinnate to 2-pinnatifid, basal pinnae reduced; pinnae in c. 10 pairs (up to 24), ovate-lanceolate, base unequally cuneate, auriculate acroscopically, progressively more deeply incised from apex to base into usually 2-or 3-fid oblong to oblanceolate lobes (or occasionally equally incised), upper surface glabrous, lower surface set with scattered hair-like scales c. 1 mm long. Sori borne along outermost branch vein of a fork, c. 9 mm long; indusium membranous, entire, c. 0.6 mm broad.