1, Allium macrostemon Pinyin: [xiè bá i]; Bulbus Allii Macrostemon, the scientific name of traditional Chinese medicine. It is the dried bulb of Allium tuberosum or Allium macrostemon in Liliaceae. Digging in summer and autumn, cleaning, removing fibrous roots, steaming or scalding in boiling water, and drying in the sun. Leek: irregular oval, 0.5 ~1.5cm in height and 0.5 ~1.8cm in diameter. The surface is yellow-white or yellow-brown, shriveled and translucent, covered with white membranous scales, and there are prominent bulb discs at the bottom. Hard and horny. It smells of garlic and tastes slightly spicy.

2. Origin: mainly produced in Northeast China, Hebei, Jiangsu, Hubei and other places.