萼片并非具芒的在先端，宿存。
叶互生，无柄，圆柱状，肉质，基部扩大的，先端钝或具芒；叶腋束状具柔毛。
Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.
上芒岗金矿是滇西地区具代表性的红色粘土型金矿。
The Shangmanggang gold deposit is a typical red clay type gold deposit in western Yunnan.
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