粉红方杆蕨 fen hong fang gan jue

Aspidium rufostramineum Christ, Bull. Soc. Bot. France 52(Mém. 1): 36. 1905; Dryopteris rufostraminea (Christ) C. Christensen; Thelypteris rufostraminea (Christ) Ching.

Plants 50-100 cm tall. Rhizomes creeping, glabrous. Fronds approximate; stipes 20-40 cm, stramineous, glabrous and usually reddish; laminae oblong-lanceolate, 40-50 × 18-25 cm, not tapering to bases, pinnate-pinnatifid nearly to costae, acuminate and pinnatifid at apices; pinnae 20-28 pairs, opposite or distally subalternate, sessile, spreading or slightly obliquely bent distally, linear-lanceolate, long acuminate at apices; proximal 1 or 2 pairs slightly shortened and reflexed, bases tapering; middle pinnae 10-16 × 1.2-2 cm, wider at bases and subtruncate, pinnatifid nearly to costae; segments 30-35 pairs, spreading, linear-falcate, 6-10 × 2-2.5 mm; proximal pair longer, entire, obtuse-pointed or acute at apices. Veins evident, veinlets 8-10 pairs per segment, proximal pair arising from base of costules and reaching margins above sinuses. Laminae papery, when dry yellow-green, abaxially with dense long acicular hairs along rachises, costae, veins, and intercostal areas, adaxially only with short setae. Sori orbicular, 3-5 pairs per segment, attached at bases of veinlets and in one row on each side of costules; indusia bearing acicular hairs. Sporangia bearing acicular hairs.

● Forest margins, roadsides; 1300-1500 m. Chongqing, Guizhou, Hubei, Sichuan, Yunnan.