The dried roots and the dried rhizome of Aster tartarius L. from the family of Compositae.
The rhizome presents irregularly shaped pieces of varying size. They have a hard consistency.
From the rhizome, numerous thin, subordinate roots pass away; The surface is red-violet to
reddish-gray, and has a longitudinal furrow; Relatively soft and durable consistency.
Weak aromatic odor,
Taste sweet, slightly bitter.