毒马草属（学名：Sideritis）是唇形科下的一个属，为一年生或多年生草本或亚灌木植物。该属共有约100种，分布于北温带的欧亚大陆。

Sideritis, also known as ironwort, mountain tea and shepherd's tea, is a genus of flowering plants well known for their use as herbal medicine, commonly as an herbal tea. They are abundant in Mediterranean regions, the Balkans, the Iberian Peninsula and Macaronesia, but can also be found in Central Europe and temperate Asia.