Guanzhong, Chinese medicine name. It is the rhizome and petiole residue of the thick-stemmed scaly fern of the Scaly Fern family.

①Alias: Mianma scaly fern, Kanjie, Kanqu

②Growth characteristics

Perennial herb, 50 ~ 100cm high. rhizome stout, oblique, with more hard petiole residues and black fine roots, densely covered with dark brown, long lanceolate large scales. Leaves are clustered at the top of the rhizome; petiole 10-25cm long, densely covered with brown, narrowly barred to subulate scales directly above the base and up to the leaf rachis, leaf blade herbaceous, oblanceolate, 60-100cm long, 20-25cm wide slightly above the center, bipinnately divided or y lobed; pinnae sessile, segments densely spaced, oblong, crenate or rounded-truncate, subentire or apex obtusely serrate; dark green above, light green below, lateral veins pinnately forked. Lateral veins pinnately forked. The sporophyte is homomorphic with the nutritive leaf, and the spore cluster is borne on the pinnae above the middle of the leaf, and below the middle of the dorsal leaf veinlets, and the cap of the cluster is reniform or round-reniform, brown.

③Origin

Distributed in Guangdong, Guangxi, Hunan, Jiangxi, Fujian and Zhejiang.

④Medicinal use

It is used for wind-heat cold; warm-heat eclampsia; vomiting blood; coughing up blood; epistaxis; blood in the stool; collapse and leakage; bloody diarrhea; band-associated and intestinal parasitic diseases such as hooks, roundworms and tapeworms.