小叶石楠，中药名。为蔷薇科植物小叶石楠Photiniaparvifolia（Pritz.）Schneid.的根。分布于江苏、安徽、浙江、江西、台湾、河南、湖北、湖南、广东、广西、四川、贵州等地。具有清热解毒，活血止痛之功效。常用于黄疸，乳痈，牙痛。
Xiao-ye-shi-nan, name of Chinese Medicinal Material. s the root of Photinia parvifolia (Pritz.) Schneid., a plant in the Rosaceae family. It is distributed in Jiangsu, Anhui, Zhejiang, Jiangxi, Taiwan, Henan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Guizhou, and other regions. It is known for its effects of clearing heat, detoxifying, promoting blood circulation, and relieving pain. It is commonly used for jaundice, breast abscess, and toothache.

功效作用 功能
The efficacy and functions.

清热解毒，活血止痛。主治
Clearing heat, detoxifying, promoting blood circulation, and relieving pain. Mainly used for治疗。

用于黄疸，乳痈，牙痛。用法用量
Used for jaundice, breast abscess, and toothache. Dosage and administration.

内服：煎汤，15-60g。相关论述
Internal administration: Decoction, 15-60g. Relevant discussion.

《湖南药物志》：“行气活血，止痛。”临床应用 相关配伍
"Hunan Materia Medica": "Promoting Qi circulation, activating blood, and relieving pain." Clinical applications and relevant combinations.

治乳痈：小叶石楠根60g。水煎服。（《湖南药物志》）加工炮制 采收加工
Treatment for breast abscess: 60g of Rhododendron simsii roots. Decoction for oral administration. (From "Pharmacopoeia of Hunan Province") Processing and preparation: collection and processing.

秋、冬季采挖，洗净，晒干。植物学信息 植物种属
Harvest in autumn and winter, wash, and dry in the sun. Botanical information: plant species.

蔷薇科植物小叶石楠。形态特征
Rosaceae plant Cotoneaster microphyllus. Morphological characteristics

落叶灌木，高1-3米；枝纤细，小枝红褐色，无毛，有黄色散生皮孔；冬芽卵形，长3-4毫米，先端急尖。叶片草质，椭圆形、椭圆卵形或菱状卵形，长4-8厘米，宽1-3.5厘米，先端渐尖或尾尖，基部宽楔形或近圆形，边缘有具腺尖锐锯齿，上面光亮，初疏生柔毛，以后无毛，下面无毛，侧脉4-6对；叶柄长1-2毫米，无毛。花2-9朵，成伞形花序，生于侧枝顶端，无总花梗；苞片及小苞片钻形，早落；花梗细，长1-2.5厘米，无毛，有疣点；花直径0.5-1.5厘米；萼筒杯状，直径约3毫米，无毛；萼片卵形，长约1毫米，先端急尖，外面无毛，内面疏生柔毛；花瓣白色，圆形，直径4-5毫米，先端钝，有极短爪，内面基部疏生长柔毛；雄蕊20，较花瓣短；花柱2-3，中部以下合生，较雄蕊稍长，子房顶端密生长柔毛。果实椭圆形或卵形，长9-12毫米，直径5-7毫米，桔红色或紫色，无毛，有直立宿存萼片，内含2-3卵形种子；果梗长1-2.5厘米，密布疣点。花期4-5月，果期7-8月。分布区域
Deciduous shrub, 1-3 meters high; branches slender, twigs reddish-brown, glabrous, with scattered yellow lenticels; winter buds ovate, 3-4 millimeters long, acute at the apex. Leaves membranous, elliptic, elliptic-ovate, or rhombic-ovate, 4-8 centimeters long, 1-3.5 centimeters wide, gradually acute or acuminate at the apex, broadly cuneate or nearly rounded at the base, margin serrate with glandular teeth, shiny on the upper surface, initially sparsely pubescent, later glabrous, glabrous on the lower surface, with 4-6 pairs of lateral veins; petiole 1-2 millimeters long, glabrous. Flowers 2-9, in umbellate cymes, borne at the apex of lateral branches, without a common peduncle; bracts and bracteoles lanceolate, early deciduous; pedicels slender, 1-2.5 centimeters long, glabrous, with warts; flowers 0.5-1.5 centimeters in diameter; hypanthium cup-shaped, about 3 millimeters in diameter, glabrous; sepals ovate, about 1 millimeter long, acute at the apex, glabrous on the outside, sparsely pubescent on the inside; petals white, circular, 4-5 millimeters in diameter, obtuse at the apex, with very short claws, sparsely pubescent at the base on the inner surface; stamens 20, shorter than the petals; styles 2-3, connate below the middle, slightly longer than the stamens, ovary densely covered with long hairs at the apex. Fruit ellipsoidal or ovoid, 9-12 millimeters long, 5-7 millimeters in diameter, orange-red or purple, glabrous, with erect persistent sepals, containing 2-3 ovoid seeds; pedicel 1-2.5 centimeters long, densely covered with warts. Flowering period from April to May, fruiting period from July to August. Distribution area: [not provided]

分布于江苏、安徽、浙江、江西、台湾、河南、湖北、湖南、广东、广西、四川、贵州等地。生长环境
Distributed in Jiangsu, Anhui, Zhejiang, Jiangxi, Taiwan, Henan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Guizhou and other regions. Growing environment

生于海拔1000m以下低山丘陵灌丛中。
Born in the shrubbery of low hills and ridges below 1000 meters above sea level.