Dryopteris lakhimpurensis Rosenstock, Meded. Rijks-Herb. 31: 7. 1917; Abacopteris rubra (Ching) Ching; Cyclosorus rubrus (Ching) Tardieu ex Tardieu & C. Christensen; D. rubra Ching; Meniscium cuspidatum Blume var. longifrons Wallich ex C. B. Clarke; Polypodium urophyllum Wallich ex Hooker & Baker var. khasianum C. B. Clarke; Thelypteris lakhimpurensis (Rosenstock) K. Iwatsuki; T. rubra (Ching) K. Iwatsuki.

Plants ca. 1.5 m tall. Rhizomes long creeping. Fronds remote; stipes 80-90 cm, occasionally with 1 or 2 scales at bases, dark stramineous; laminae oblong-lanceolate or ovate-oblong, 60-85 cm, 1-imparipinnate, acuminate at apices; lateral pinnae 8-12 pairs, subobliquely spreading, pinnae on proximal to middle part broadly lanceolate, 24-32 × 4-6 cm, stalk ca. 2 mm, somewhat rounded at bases, entire or undulate, shortly caudate-pointed at apices; terminal pinna of similar shape as proximal ones, stalk 1.5-2 cm. Veins slender, evident abaxially, veinlets subobliquely spreading and parallel to each other, veinlets 13-17 pairs, subobliquely spreading, proximal pairs joined to form triangular areoles, distally every pair of veinlets connected with excurrent veinlet forming 2 rows of rhomboid areoles, excurrent veinlets reaching or near joining point of above pair of veinlets. Laminae thinly papery or herbaceous, dark brown, glabrous on both surfaces, occasionally with 1 or 2 short setae abaxially, rachises, costae, and veins with sparse short hairs. Sori orbicular, attached on middle or above middle part of veinlets and arranged in 2 rows, occasionally confluent when mature, exindusiate.

Valleys, streamsides in forests; 300-1600 m. Fujian, Guangdong, Guangxi, Jiangxi, Sichuan, Yunnan [Bhutan, N India, Nepal, N Thailand, Vietnam].