红沙，中药名。为柽柳科植物红砂Reaumuria songarica（Pall.）Maxim.[Tamarix soongarica Pall.]的枝叶。具有祛湿止痒的功效。主治湿疹，皮炎。
Hong-sha, name of Chinese Medicinal Material. the branches and leaves of the plant Reaumuria songarica (Pall.) Maxim. [Tamarix soongarica Pall.], which belongs to the Tamaricaceae family. It has the function of dispelling dampness and relieving itching, and is mainly used to treat eczema and dermatitis.

功效作用 功能
The efficacy and functions.

祛湿止痒。主治
Dampness expulsion and itch alleviation. Mainly used for treating...

湿疹，皮炎。用法用量
Eczema, dermatitis. Dosage and administration.

外用：适量，煎水洗。相关论述
External use: Apply an appropriate amount and wash with decocted water. Relevant discussion.

《沙漠地区药用植物》：“主治湿疹，皮炎。”加工炮制 采收加工
"Medicinal Plants in Desert Areas": "Used to treat eczema and dermatitis." Processing and preparation: harvesting and processing.

夏、秋两季采收，剪取枝叶，晒干。药材鉴别 药材性状
Harvest in summer and autumn, cut the branches and leaves, and dry them in the sun. Identification of medicinal materials and their properties.

叶近无梗，肥厚，较短，呈短圆柱形，长1-5mm，宽0.5mm，鳞片状。植物学信息 植物种属
Leaves are nearly sessile, thick, relatively short, and short cylindrical in shape, 1-5mm long, 0.5mm wide, and scale-like. Botanical information: plant species.

柽柳科植物红砂。形态特征
The plant belongs to the Tamaricaceae family and is called red sand. Please describe its morphological characteristics.

多分枝小灌木，植株仰卧，高10-30（-70）cm。树皮不规则波状剥裂；老枝灰棕色，小枝多拐曲，皮灰白色，纵裂。叶常4-6枚簇生在缩短的枝上，肉质，短圆柱形，鳞片状，长1-5mm，宽约1mm，浅灰蓝绿色，花期有时变紫红色，具点状泌盐腺体。花两性；花单生叶腋或在幼枝上端呈少花的总状花序，无梗，直径约4mm；苞片3；花萼钟状，上部5裂；花瓣5，张开，白色略带淡红，长圆形，内面有2个倒披针形附属物；雄蕊6-8（-12）；花柱3。蒴果纺锤形，具3棱，长4-6mm，3瓣裂。种子3-4颗，全部被黑褐色毛。花期7-8月，果期8-9月。分布区域
This is a multi-branched small shrub, with plants lying down and reaching a height of 10-30 (-70) cm. The bark irregularly peels in a wavy pattern; the old branches are gray-brown, the small branches are often twisted, with gray-white, longitudinally cracked bark. The leaves are often clustered in groups of 4-6 on shortened branches, fleshy, short cylindrical, scale-like, 1-5mm long, about 1mm wide, light gray-blue-green in color, and sometimes turn purplish-red during the flowering period, with dot-shaped salt glands. The flowers are bisexual; single flowers grow in the leaf axils or in few-flowered racemes at the tips of young branches, without stalks, with a diameter of about 4mm; 3 bracts; the calyx is bell-shaped, with 5 lobes in the upper part; the 5 petals are open, white with a hint of pale red, oblong, with 2 lanceolate appendages on the inner surface; 6-8 (-12) stamens; 3 pistils. The capsule is spindle-shaped, with 3 edges, 4-6mm long, and 3-lobed. There are 3-4 seeds, all covered with black-brown hairs. The flowering period is in July-August, and the fruiting period is in August-September. Distribution area: [missing information]

分布于内蒙古、陕西、甘肃、宁夏、青海、新疆等地。生长环境
Distributed in Inner Mongolia, Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang and other regions. Growing environment.

成片生于山间盆地、湖岸盐碱地、戈壁及沙砾山坡。
It grows in mountain basins, lakeside saline-alkali land, deserts, and gravel slopes.