Rhubarb is a perennial herb with large and thick roots and yellow color. The stem is thick and erect, about 1 meter high, green and purple.
The leaves are oval or oval in shape, about 15-30cm in length and 12-20cm in width. The apex is round and blunt, the base is heart-shaped, the whole leaf is intertwined, the leaves are ovate lanceolate, gradually smaller from bottom to top, and become bracts.
Turquoise for the panicle, flowers smaller, after the color of purple green to green, bisexual flowers.
The fruit of tudahuandan is ovate, with a brown color and a seed. The flowering and fruiting period are from May to July.
The root and leaf of rhubarb can be used for medicine. It has the functions of hemostasis, defecation, removing blood stasis, clearing heat, detoxification and insecticidal.
