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荆芥为唇形科植物,茎呈方柱形,上部有分枝,长50~80厘米,直径0.2~0.4厘米;表面淡黄绿色或淡紫红色,被短柔毛;体轻、质脆,断面类白色。叶对生,多已脱落,叶片3~5羽状分裂,裂片细长。穗状轮伞花序顶生,长2~9厘米,直径约7毫米。花冠多脱落,宿萼钟状,先端5齿裂,淡棕色或黄绿色,被短柔毛;小坚果棕黑色。气芳香,味微涩而辛凉。具有透疹、发表、散风之功能;炒
Nepeta is a Labiatae plant, the stem is square columnar, the upper branches, 50 to 80 cm long, 0.2 to 0.4 cm in diameter; surface pale yellow green or purple, pubescent; body light, crisp , Cross-section white. Leaves opposite, many have fallen off, leaves 3 to 5 pinnately divided, lobes slender. Spike-shaped inflorescence terminal, 2 to 9 cm long, about 7 mm in diameter. Corolla detached, persistent calyx bell-shaped, apex 5-cleft, pale brown or yellow-green, pubescent; nutlet brown black. Aroma, taste slightly astringent and Xin Liang. With Touzhen, published, scattered wind function; fried