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马桑(Coriaria Sinica Mixim)为马桑科、马桑属落叶小乔木,阳性树种,萌芽力特别强,主干砍伐后很难再形成主干,成丛生灌木状,在湘西自治州的岩石隙缝、陡坡峭壁、荒山、田坎上到处可见。树干高的可达6米,胸径12厘米,灌丛一般高1.5～2.0米,小枝红褐色,有纵棱和短硬毛,多密生于枝条的上半部,枝条向四周扩展,往往自然倾斜下垂。单叶对生,椭圆形或广椭圆形,三出脉,无托叶。3月中旬发叶,5-6月最盛,10月下旬开始落叶,直至12月隆冬季节落完,低海拔地区有少部份树带叶过冬。穗状花
Coriaria Sinica Mixim belongs to Sangsangmao. Masson is a small tree with deciduous trees. Its positive tree species have a very strong sprout. It is very difficult to form the trunk after the main tree is cut down and become a cluster of shrubs. The rocky crevices and steep cliffs in Xiangxi Autonomous Prefecture Barren hills, ridge can be seen everywhere. Trunks of up to 6 meters high, diameter 12 cm, shrubs generally 1.5 to 2.0 meters, branchlets reddish brown, longitudinal ribs and stigma, mostly in the upper branches of branches, branches to the surrounding expansion, often naturally inclined Droop. Leaves simple, oval or broad oval, three veins, without stipules. Leafy in mid-March, May-June peaked in late October began deciduous until the winter season ended in December, a small part of the low-altitude tree leaves with the winter. Spikes