Production RegionsPrimarily produced in the Chinese provinces of Shaanxi, Gansu, Shanxi, Henan.
Macroscopic FeaturesCylindrical, tiny, 3~4mm long, less than 1mm diameter. Externally yellowish-brown to dark brown, with numerous longitudinal ridges. One end wrinkled like thin beak-shaped leaf, tip expands to grayish-white ring; another end is slightly pointy, with scars. Fruit skin is thin, fibrous; seed coat is very thin and transparent, with 2 cotyledons, off-white, oily. Distinctive odor; slightly bitter taste.
Quality RequirementsSuperior medicinal material has even and full body, granular feeling when chewed, lustrous externally.
PropertiesBitter, acrid; neutral; slightly toxic.
FunctionsKills worms, clears heat, resolves toxin, promotes spleen, harmonizes stomach. Apply to stomach pain due to worm accumulation, trichomonas vaginalis.
OriginThe dried mature fruit of Carpesium abrotanoides L.(Asteraceae)