Mǎ Yá Guàn Zhòng (Mayaguanzhong) is a traditional Chinese medicinal material. It is the dried rhizome of Athyrium pachyphlebium C. Chr., a plant belonging to the family Athyriaceae. It grows in wetlands beside fields and in rock crevices under shrub forests at altitudes of 800–1,200 meters. It is recorded in Zhonghua Bencao (Chinese Materia Medica).

Efficacy & Actions

Clears heat, removes toxicity, stops bleeding, and expels parasites.

Indications

Sores, boils and toxic swellings; dysentery; epistaxis (nosebleeds); and ascariasis (roundworm infection).

Modern Pharmacology

As a regional substitute for “Guanzhong”‑type medicinal materials, it shares similar effects with the official Guanzhong (Mianma Guanzhong, Dryopteris crassirhizoma), but has a different botanical origin and relatively lower toxicity.

Contraindications

Contraindicated during pregnancy (a general contraindication for “Guanzhong”‑type medicinal materials).

Medicinal Parts

It is the dried rhizome of Athyrium pachyphlebium C. Chr., a plant belonging to the family Athyriaceae.

Selection & Storage

Store in a cool, dry place, protected from moisture and insects.