黄杨，中药名。为黄杨科黄杨属植物杨Buxus sinica（Rehd.et wils）M.Cheng[B.microphylla Sieb.et Zucc.var sinica Rehd.et Wils.]，以根、叶入药。主治风湿关节痛，痢疾，胃痛，疝痛，腹胀，牙痛，跌打损伤，疮痈肿毒。
Huang-yang, name of Chinese Medicinal Material. It refers to the plant Buxus sinica (Rehd.et wils) M.Cheng [B.microphylla Sieb.et Zucc.var sinica Rehd.et Wils.] of the Buxaceae family. Its roots and leaves are used as medicine. It is mainly used to treat rheumatic joint pain, dysentery, stomach pain, hernia pain, abdominal distension, toothache, bruises, and carbuncles.

功效作用 功能
Efficacy and Functions

祛风除湿，行气活血。主治
Dispelling wind and dampness, promoting qi circulation and activating blood circulation. Mainly used for治疗.

用于风湿关节痛，痢疾，胃痛，疝痛，腹胀，牙痛，跌打损伤，疮疡肿毒。用法用量
Used for rheumatic joint pain, dysentery, stomach pain, hernia pain, abdominal distension, toothache, bruises, and abscesses. Dosage and administration.

9-12g，作煎剂或泡酒服；外用适量，捣烂敷患处。化学成分
9-12g, decocted or soaked in alcohol for oral administration; for external use, apply an appropriate amount by crushing and applying to the affected area. Chemical composition.

叶含生物碱：黄杨醇碱E、环朝鲜黄杨碱、环小叶黄杨次碱、环锦熟黄杨碱D、黄杨碱E、环小叶黄杨碱（黄杨批碱），及4,4α-二氢环小叶黄杨碱。木质部主要含环锦熟黄杨碱D、C及环原黄杨碱A、C等。药理作用
Alkaloids contained in leaves: Corydalis alkali E, Corydalis alkali F, Corydalis minor alkali, Corydalis mature alkali D, Corydalis alkali E, Corydalis minor alkali (batch alkali), and 4,4α-dihydrocorydalis minor alkali. The xylem mainly contains Corydalis mature alkali D, C, and Corydalis original alkali A, C, etc. Pharmacological effects.

1、黄杨木中分离提取到黄杨木生物碱具有强心作用、抗心绞痛作用、扩张血管作用及抗心律失常作用。2、环常绿黄杨碱能显著延长小鼠耐缺氧时间，能显著缩小结扎前降支家兔的心肌梗死范围。3、黄杨木碱1号对垂体后叶素诱发的急性心肌缺血有保护作用。4、环常绿黄杨碱D、C及环原黄杨碱C均具有增加冠状动脉血流量的作用，用于冠心病，以及冠心病所引起的心绞痛。加工炮制 采收加工

1. Alkaloids extracted from boxwood have been found to possess positive inotropic effects, anti-anginal effects, vasodilation effects, and anti-arrhythmic effects. 2. Cyclobuxine D extracted from Buxus microphylla can significantly prolong the tolerance to hypoxia in mice and reduce the size of myocardial infarction in rabbits with ligated descending branches before surgery. 3. Buxamine 1 from boxwood has a protective effect against acute myocardial ischemia induced by pituitrin in the posterior pituitary lobe. 4. Cyclobuxine D, cyclobuxine C, and cyclovirobuxine C all have the effect of increasing coronary blood flow, and can be used for coronary heart disease and angina pectoris caused by coronary heart disease. Processing and preparation methods are involved in harvesting and processing.

全年可采，晒干备用。植物学信息 植物种属
Harvestable all year round, dry and store in the shade. Botanical information: plant species.

黄杨科黄杨属植物杨。形态特征
Huangyang is a plant belonging to the family of yellow poplar. Its morphological characteristics include:

常绿灌木或小乔木，高1-3m，树皮灰色，有规则的剥离。茎枝均呈4棱，小枝开展，有短柔毛。叶对生，具短柄，有短柔毛；倒卵形、倒卵状长椭圆形或宽椭圆形，长1-3cm，宽0.7-1.5cm，先端钝圆稍凹，基部窄楔形，全缘，上面深绿色，有光泽，基部微有柔毛，下面无毛，主脉粗大。春季开黄色花，单性同株，篾生于叶腋或枝端，无花瓣，通常顶端具1朵雌花，其余均雄花；雄花萼片4，雄蕊常为萼片2倍；雌花萼片6，子房3室，花柱3。蒴果球形，黑色，沿室背3瓣裂。分布区域
Evergreen shrub or small tree, 1-3m tall, with gray bark that peels off in a regular pattern. Stems are four-angled, branches are spreading, and twigs are short and softly hairy. Leaves are opposite, short-stalked, and softly hairy; they are inverted egg-shaped, inverted egg-shaped elliptic, or wide elliptic, 1-3cm long and 0.7-1.5cm wide, with bluntly rounded and slightly concave tips, narrow wedge-shaped bases, entire margins, shiny dark green upper surfaces with slight soft hair at the base, hairless lower surfaces, and prominent veins. In spring, it produces yellow flowers, monoecious, with inflorescences in leaf axils or at branch tips, lacking petals, typically with one female flower at the apex and the rest male flowers; male flowers have 4 sepals, with stamens often twice as many as sepals; female flowers have 6 sepals, a 3-loculed ovary, and 3 styles. The fruit is spherical, black, and splits into 3 valves along the back of the locule. Distribution area.

各地有栽培。原产我国北部及中部。生长环境
Cultivated in various regions. Originally from the northern and central parts of China. Growth environment.

生于海拔1200-2600m的山谷、溪边、林下，现有栽培作观赏用。生长见习
Born in valleys, by streams, and under forests at altitudes of 1200-2600 meters, it is now cultivated for ornamental purposes. Its growth is still being observed.

性喜温暖、半阴、湿润气候，耐旱、耐寒、耐修剪，属浅根性树种，生长慢，寿命长。
Prefers a warm, semi-shaded, and moist climate, tolerant to drought, cold, and pruning. It is a shallow-rooted tree species with slow growth and long lifespan.