塔黄（学名：Rheum nobile）为蓼科大黄属下的一个种。

Rheum nobile, the Noble rhubarb or Sikkim rhubarb or पदमचाल, is a giant herbaceous plant native to the Himalaya, from northeastern Afghanistan, east through northern Pakistan and India, Nepal, Sikkim (in India), Bhutan, and ***** to Myanmar, occurring in the alpine zone at 4000–4800 m altitude.