唐古特大黄又名鸡爪大黄,可以攻积滞、清湿热、泻火、凉血、祛瘀、解毒,具有治实热便秘、热结胸痞、湿热泻痢的作用,是甘肃省甘南藏族自治州高寒冷凉区常种藏中药材之一。其耐寒力强,多生长在海拔2 000~3 900 m的山地林缘、灌丛、草坡地带,冬天能耐-20℃以下的低温。唐古特大黄叶片掌缺刻深裂,花小、淡黄至白色,瘦果椭圆状三棱形,沿棱有 Tanggut rhubarb, also known as chicken feet rhubarb, can attack stagnation, clearing dampness, purging fire, cooling blood, blood stasis, detoxification, with the treatment of heat constipation, heat knot ruffian, dampness diarrhea role is Gansu Gannan Tibetan Autonomous Prefecture, cold-sheltered area often planted one of the Chinese herbal medicines. Its cold hardy, more growth in the mountains 2 000 ~ 3 900 m of the mountain edge of forest, shrubs, grassland slope, the ability to withstand cold in winter below -20 ℃. Tangut rhubarb leaves palm nicked deep cleft, flowers small, light yellow to white, achenes elliptical triangular, along the edge of a