Plants 10-30 cm. tall. Rhizomes long and creeping, densely covered with scales; the scales lanceolate, longly acuminate at apexes, brownish, margins ciliate. Fronds remote, subdimorphic; stipes and laminae and stipes much varied in sizes fortile fronds much longer and narrower than stelile ones, both fronds slightly longer than stipes, less same lenght, rarely fronds shorter than stipes. Stelile laminae subrounded or obrongly lanceolate, widest at 1/3 of lower parts, attenuated upwards, apexes shortly acuminate, bases cuneater, 1.5-5 x (5-) 10-20 cm. entire, after dry coriaceous, greyish-green and subglabrous on upper surfaces, brownish or brick-red and covered with stellate hairs on under surfaces; fortile frands longer 1/3 than stelile ones, narrower 1/3-2/3 than stelile ones. Main veins slightly raised on undercsides, indisdinctly depresed on upper sides, lateral veins disdinct raised on under sides, clearly visible, veinlets obscure. Sori subelliptic, in regularly multrows between lateral veins and sporeading allover underer surfaces of laminae, or gathered born in most upper half parts of laminae, covered with stellate hairs and brownish when young, brick-red after maturity.

Antibacterial, antitussive, expectorant, antiasthmatic, diuretic, hypolipidaemic (leaves)

WHO/WPRO-Medicinal plants in the Republic of Korea
Flora of China

Beta-sitosterol, mangiferin, isomangiferin, trifolin, kaempferol, diploptene, fumaric acid, boletic acid, caffeic acid, 2-butenedioic acid, chlorogenic acid

Whole plants especially the leaves are used as medicines diuresic for gonorrhea with hematuria, strangury, to clear heat and eliminate wetness for incised wound, burn and scald, diseases due to asthenia of viscera.

Jing-Nuan Wu. An Illustrated Chinese Materia Medica. P: 540, Oxford University Press, Inc.2005.