貴陽常用的地榆,因其色紅,常称为紅地榆或紅三七。生药干后弯曲皺縮,現出环节,兩端細而中部隆起,形同蜜蜂腹部,故又称之为地蜂子。其外表暗褐色,內部紅褐色,質極坚硬,兩端細,中間隆起部粗大,長約3—8厘米,粗大部份直徑1—3厘米。但外观極不像地榆,因为地榆生药应为長形圓錐狀,有时可長达20—30厘米,表面黑褐,內面淡紅白色,且質並不坚硬。为辨其真伪,特随葯农上山採葯,在华家山及麻冲 Guiyang, commonly used in Guiyang, because of its color red, is often referred to as red earthworm or red 37. The raw medicine is bent and shrunk after being dried, and the links appear. The two ends are fine and the middle part is uplifted. It resembles the belly of a bee, so it is also called a ground bee. Its dark brown appearance, internal reddish-brown, very hard, with two ends thin, the central bulge is thick, about 3-8 cm long, the thick part is 1-3 cm in diameter. However, the appearance is not very similar to the earthworms, because the raw drugs of the earthworm should be long cone-shaped, sometimes as long as 20-30 cm, the surface is dark brown, the inner surface is red and white, and the quality is not hard. In order to distinguish between its authenticity and speciality, special medicines were used to collect herbs on the mountain, at Huajiashan and Maching.