The difference between grass and grass.

Equisetum is the

dry aerial part of Equisetum family. Equisetum is the whole herb of Equisetum of Equisetum family. Equisetum

has the functions of

dispersing wind-heat, improving eyesight and removing nebula. It can be used to treat red eyes, swollen eyes and tears caused by exogenous wind-heat. It can also be combined with other hemostatic drugs to treat bleeding syndrome. Equisetum has the functions of clearing heat, diuresis, eliminating phlegm and relieving cough. It can be used to treat wind-heat cold, bronchitis, urinary tract infection and other diseases

.

Equisetum is long tubular, unbranched, gray-green or yellow-green in surface, with obvious nodes and 2.5-9cm in length.