Pinellia ternata (original variety), a deciduous upright shrub, 2-3 meters high, usually unarmed, with thorns on rare and old branches; The young branches are thin and elongated, densely covered with rust colored or dark brown scales, and rarely with yellowish brown scales. The old branches are thick and cylindrical, with scales falling off, dark brown or black, shiny.
 Leaves are membranous or papery, elliptic or ovate to obovate, wide elliptic, 3-7cm long and 1.2-4cm wide, with blunt tip or gradually pointed tip, blunt base, entire margin, white scales or scale hairs on the upper part when young, falling off after maturity, dark brown or light green after drying, gray and white below, densely covered with silvery white and scattered with a few brown scales, 5-7 pairs of lateral veins, not very obvious on both sides; Petiole rust colored, 4-6 mm long.