山姜，中药名。为姜科山姜属植物山姜AlpiniajaponicaMiq.以根状茎入药，3～4月采挖，洗净，晒干。
Shan-jiang, name of Chinese Medicinal Material. Alpinia japonica Miq.) is a plant of the Zingiberaceae family. Its rhizome is used as a medicinal herb, which is harvested, cleaned, and dried in the months of March and April.

功效作用 功能
Efficacy and Functions

祛风通络，理气止痛。主治
Dispel wind and activate collaterals, regulate qi and relieve pain. Mainly used for...

用于风湿性关节炎，跌打损伤，牙痛，胃痛。用法用量
Used for rheumatoid arthritis, bruises, toothache, and stomachache. Dosage and administration.

3～9g。相关论述
3-9 grams. Relevant discussion.

1、《本草拾遗》：山姜根及苗，并如姜而大，作樟木臭。2、《本草图经》：山姜花、茎叶皆姜也，但根不堪食，是与豆蔻花相乱而微小耳。花生叶间，作穗如麦粒，嫩红色。3、《纲目》：山姜，生南方。叶似姜，花赤色，甚辛；子似草豆蔻，根如杜若及高良姜。今人以其子伪充草豆蔻，然其气甚猛烈。临床应用 相关配伍

1. "Compendium of Materia Medica": Mountain ginger roots and seedlings, similar to ginger but larger, with a camphor-like odor.2. "Illustrated Classic of Materia Medica": Mountain ginger flowers, stems, and leaves are all considered ginger, but the roots are not edible. They are easily confused with cardamom flowers but are much smaller. The flowers grow between the leaves in spike-like clusters resembling grains of wheat, and are a tender reddish color.3. "Compendium": Mountain ginger grows in the southern regions. Its leaves resemble ginger, the flowers are red, very pungent; the seeds resemble cardamom seeds, and the roots are similar to galangal and Kaempferia galanga. Nowadays, people often use its seeds as a substitute for cardamom, but its nature is extremely strong. In clinical practice, it is used in combination with other herbs.

《贵阳民间药草》治久咳：九姜连根（石灰水泡一天，用淘米水和清水洗净，蒸热，晒干）二钱，白芷二钱，追风伞二钱。泡酒一斤，每服一两。加工炮制 采收加工
"Guizhou Folk Medicinal Herbs" for treating chronic cough: Nine gingers with roots (soaked in lime water for a day, washed with rice water and clean water, steamed, and dried) two qian, Angelica dahurica two qian, and Glehnia littoralis two qian. Soak in one jin of liquor, take one or two liang per dose. Process and prepare for collection and processing.

3～4月采挖，洗净，晒干。植物学信息 植物种属
Harvest, wash, and dry from March to April. Botanical information: plant species.

姜科山姜属植物山姜。形态特征
Shanjiang (Asarum heterotropoides) belongs to the ginger family. It has unique morphological characteristics.

多年生草本，高35～70cm。根茎横生，分枝。叶片通常2～5片；近无柄至具长达2cm的叶柄；叶舌2裂，长约2mm，被短柔毛；叶片披针形或狭长椭圆形，长25～40cm，宽4～7cm，两端渐尖，先端具小尖头，两面，特别是叶下面被短柔毛。总状花序顶生，长15～30cm，花序轴密生绒毛；总苞片披针形，长约9cm，开花时脱落；小苞片极小，早落；花通常2朵聚生，在2朵花之间常有退化的小花残迹可见；小花梗长约2mm；花萼棒状，长1～1.2cm，被短柔毛，先端3齿裂；花冠管长约1cm，被疏柔毛，花冠裂片长圆形，长约1cm，外被绒毛，后方的1枚兜状；侧生退化雄蕊线形，长约5mm；唇瓣卵形，宽约6mm，白色而具红色脉纹，先端2裂，边缘具不整齐缺刻；雄蕊长1.2～1.4cm；子房密被绒毛。果球形或椭圆形，直径1～1.5cm，被短柔毛，熟时检红色，先端具宿存的萼筒；种子多角形，长约5mm，径约3mm，有樟脑味。花期4～8月，果期7～12月。分布区域
Perennial herb, 35-70cm tall. Rhizomes are horizontal and branched. Leaves usually 2-5; nearly sessile to having a petiole up to 2cm long; leaf sheath 2-lobed, about 2mm long, covered with short soft hairs; leaf blade lanceolate or narrowly elliptic, 25-40cm long, 4-7cm wide, gradually tapering at both ends, with a small pointed tip at the apex, covered with short soft hairs, especially on the lower surface. Inflorescence is terminal, 15-30cm long, with the axis densely covered with hairs; bracts lanceolate, about 9cm long, shed when flowering; bracteoles very small, early falling off; flowers usually in pairs, with remnants of degraded small flowers between the two flowers; pedicels about 2mm long; calyx cylindrical, 1-1.2cm long, covered with short soft hairs, 3-toothed at the apex; corolla tube about 1cm long, sparsely hairy, lobes of the corolla oblong, about 1cm long, hairy on the outside, with one pouch-like lobe at the back; lateral sterile stamens linear, about 5mm long; labellum ovate, about 6mm wide, white with red veins, 2-lobed at the apex, with irregular notches on the margin; stamens 1.2-1.4cm long; ovary densely hairy. Fruit globose or ellipsoidal, 1-1.5cm in diameter, covered with short soft hairs, turning red when ripe, with persistent calyx at the apex; seeds polygonal, about 5mm long, 3mm in diameter, with a camphor-like odor. Flowering period from April to August, fruiting period from July to December. Distribution area.

分布于浙江、江西、福建、台湾、湖北、湖南、广东、广西、四川、贵州和云南等地。
Distributed in Zhejiang, Jiangxi, Fujian, Taiwan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Guizhou, Yunnan, and other regions.