Description from Flora of China
Antrophyum japonicum Makino; A. latifolium Blume var. obovatum (Baker) C. Christensen; A. petiolatum Baker.
Rhizome short, erect; scales dark brown, lanceolate, 6-10 mm, apex long acuminate, bristlelike, margin minutely denticulate, clathrate. Fronds clustered; stipe 2-15 cm, appressed, base covered with scales like those on rhizome, upward with sparse different sized scales, gradually glabrous; lamina thinly leathery, obovate, 2-10 × 2-8 cm, widest at middle or above, apex long acuminate or caudate, sometimes upper part irregular lacerate at margin, base attenuate along stipe; costa absent; veins abundantly reticulate. Soral lines superficial or slightly immersed, on lateral veins, netted, fertile in middle part of lamina; paraphyses club-shaped with a capitate head. Spores trilete, tetrahedral-globose, surface papillate.
This species is very similar to Antrophyum plantagineum (Cavanilles) Kaulfuss and more studies are needed.
In evergreen broad-leaved forests, epiphytic on lower part of tree trunks or on rocks; 200-2400 m. Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan [Bhutan, India, Japan, Myanmar, Nepal, N Thailand, Vietnam].