栲栗果壳，中药名。为壳斗科植物桂林栲CastanopsischinensisHance的总苞。分布于广东、广西、贵州西南部及云南等地。具有除湿热之功效。常用于湿热腹泻。
Kao-li-guo-ke, name of Chinese Medicinal Material. It refers to the involucre of the fruit of Castanopsis chinensis Hance, a plant of the Fagaceae family. It is distributed in Guangdong, Guangxi, southwestern Guizhou, Yunnan, and other regions. It is effective in clearing damp-heat and is often used for treating damp-heat diarrhea.

功效作用 功能
Efficacy and Functions

除湿热。主治
Clearing damp-heat. Main treatment.

用于湿热腹泻。用法用量
Used for damp-heat diarrhea. Dosage and administration.

内服：煎汤，15-30g。相关论述
Internal administration: Decoction, 15-30g. Relevant discussion.

《全国中草药汇编》：“苦、涩，平。”《全国中草药汇编》：“除湿热。治湿热腹泻。”加工炮制 采收加工
"Compendium of Materia Medica": "Bitter, astringent, neutral." "Compendium of Materia Medica": "Clears damp-heat. Used to treat damp-heat diarrhea." Processing and preparation: Collection and processing.

夏、秋季采集，剥取种子时收集，晒干。植物学信息 植物种属
Harvest in summer and autumn, collect the seeds by peeling, and then dry them in the sun. Botanical information: plant species.

壳斗科植物桂林栲。形态特征
Plant of the Fagaceae family, Castanopsis. Morphological characteristics.

桂林栲，又名锥《中国高等植物图鉴补编》，锥栗栲、野板栗栲《云南种子植物名录》，米锥、桂林锥《中国树木志》。乔木，高达20m，胸径60cm。树皮暗灰色，老时纵裂。小枝有椭圆形皮孔，无毛。叶互生；叶柄长1-2.5cm；叶片披针形或卵圆披针形，长7-18cm，宽2-5cm，先端渐尖，基部常圆形或宽楔形，中部以上有锯齿，网络较明显，叶两面近同色，中脉在上面有突起，无毛，羽状侧脉10-12对。花单性，雌雄同株；雄花序圆锥状或穗状，花序轴几无毛，雄花绿白色，细小，排成直立，分枝的圆锥状或穗状花序，簇生于小枝顶端；雌花每朵藏于一总苞内，排成一短的穗状花序。总苞径约2.5cm，外被密生鹿角状锐刺，成熟时开裂，3-4裂瓣，壳斗壁厚1-1.5mm，刺长0.7-1.4cm，基部或中部以下汇合生成刺束，较密生，壳斗内壁密被棕色长绒毛，外壁及刺幼时被灰色细毛，壳斗成熟时近无毛，每壳斗具1坚果；坚果近卵形，直径1-1.3cm，高1.2-1.6cm，无毛，脐部与果底部几同大。花期5-7月，果期翌年9-11月。分布区域
Cyclobalanopsis glaucoides, also known as Zui in "Supplement to the Illustrated Handbook of Chinese Higher Plants", Zui Li Zui in "Seed Plant Catalog of Yunnan", and Mi Zui and Gui Lin Zui in "Chinese Tree Flora". It is a tall tree, reaching up to 20 meters in height with a diameter at breast height of 60 cm. The bark is dark gray and vertically fissured when old. The twigs have elliptical lenticels and are hairless. The leaves are alternate; petioles are 1-2.5 cm long; leaf blades are lanceolate or ovate-lanceolate, 7-18 cm long and 2-5 cm wide, gradually tapering at the apex, with a rounded or broadly wedge-shaped base, serrations above the middle, prominent venation, and nearly the same color on both sides. The midrib is raised on the upper surface, hairless, with 10-12 pairs of pinnate lateral veins. The flowers are unisexual, with male and female flowers on the same plant; male flowers are in a cylindrical or spicate inflorescence, greenish-white, small, erect, and clustered at the tips of the twigs; female flowers are each enclosed in a bract, arranged in a short spicate inflorescence. The bracts are about 2.5 cm in diameter, densely covered with sharp horn-like spines, which split open when mature, with 3-4 lobes, a thick wall of 1-1.5 mm, spines 0.7-1.4 cm long, forming bundles at the base or below the middle, densely arranged, the inner wall of the cupule covered with brown long hairs, the outer wall and spines covered with gray fine hairs when young, nearly hairless when mature, each cupule containing 1 nut; the nut is nearly ovoid, 1-1.3 cm in diameter, 1.2-1.6 cm high, hairless, with a navel similar in size to the base of the fruit. Flowering occurs from May to July, and fruiting occurs from September to November the following year. Distribution area: [missing information].

广东、广西、贵州西南部及云南等地。生长环境
Guangdong, Guangxi, southwestern Guizhou, Yunnan, and other regions. Growing environment.

喜温暖湿润，常生于海拔200-1500m的山地或谷地，与常绿阔叶林混交，有时与马尾松混交形成混交林。
Xiwennuan loves warm and humid environments, often found in mountainous or valley areas at altitudes of 200-1500 meters. It grows mixed with evergreen broad-leaved forests and sometimes forms mixed forests with Chinese red pine.