Phoenix tail grass

Phoenix tail grass

(records of yam planting in Tianmu, Zhejiang)

[source] it is the rhizome or whole grass of Dryopteris japonica.

[plant morphology] Dryopteris japonica

Perennial herbs, 20-50 cm high. Rhizome transverse, covered with brown scales. Leaf blade lanceolate to long ovate lanceolate, 12-30 cm long, 6-12 cm wide, apex apical, one pinnate compound leaf; 10-12 pairs of pinnae, distal, sessile or lower pinnae with short petioles, several pairs, lanceolate to linear lanceolate, 4-10 cm long, 1.5-2.5 cm wide, apex long acuminate, pinnate cleft; lobes linear The tip is truncate, rounded or blunt, the edge is slightly wavy, herbaceous, and the veins are pinnate. There are 3-5 sporangia on both sides of the midvein of the lobes, which grow along the lateral vein, linear to oblong, and the cover of the sporangia is isomorphic.

It grows on hillsides, streams and moist forests. It is distributed in Zhejiang, Anhui, Jiangxi, Hubei, Guangdong, Guangxi, Guizhou, Yunnan, Taiwan, etc.

[function indications] fresh root: it can cure swelling and pain of red eyes. Whole herb: for treating mastitis, all kinds of swelling and toxin begin to appear.

[usage and dosage] oral administration: decoction, 0.5-1 Liang.