一、良姜。别名高良姜、小良姜,为姜科植物高良姜的干燥根茎,系常用中药材。具有温胃散寒、消食止痛的功能。主治脘腹冷痛、胃寒呕吐、嗳气吞酸等症。良姜主产于广东、广西和云南等省区。野生于山坡草地、灌木丛中、山沟林下湿润处。为多年生草本植物,高30～40厘米;地下茎根棕红色或紫红色; First, good ginger. Alias ​​galangal, small galangal, galangal plant galangal dry rhizome, Department of commonly used Chinese herbal medicines. With warm stomach cold, digestion and pain relief function. Indications abdominal cold pain, stomach cold vomiting, belching acid swallowing embolism. Ginger mainly produced in Guangdong, Guangxi and Yunnan provinces. Wild in the hillside grass, shrubs, ravines wet under the forest. For perennial herbs, 30 to 40 cm high; underground stems are brownish red or purple;