Green onion

Green onion

(Tang materia medica)

[synonyms] gecong (Qianjin Shizhi), shancong (tangbencao), gecong (gecong), luer (jiuhuangbencao).

[source] bulb of Allium fistulosum, a Liliaceae plant.

[plant morphology] scallion

Perennial herbs. The bulb is long elliptic, and the bulb skin is filiform and reticulate. Leaves long petiolate, long ovate or long elliptic, entire, soft and smooth, slightly pinkish white; parallel veins. The length of flower stem is 30-60 cm: the flower is small, green white or even light purple, clustered on the top of the stem, arranged in umbels; perianth is 6; stamen is 6; ovary is superior, 3-locular, style filiform, stigma is small. Capsule, loculicidal; seeds black.

Born in the mountains and forests, meadow. Distributed in Northeast, North China, Hubei, Sichuan, Gansu, Yunnan and other places.

[chemical composition] it mainly contains Methylallyl disulfide, diallyl disulfide and Methylallyl trisulfide, which is the source of aroma; it also contains saponins and sugars: 1-coase and neocoase.

[nature and taste] Qianjin Shizhi: "pungent, slightly warm, non-toxic. "

[functions and indications] ① Qianjin? Shizhi: "eliminate miasma and malice. His son is the master of ejaculation. "

② Tang Mu Cao: "the main evil drum, fox urine thorn poison, sand lice, shooter and other poison in mountain and stream. Soak in boiling juice, or mash and paste. It's also used for garlic and dogwood, not only for Chinese. "