川犀草（学名：Oligomeris linifolia）为木犀草科川犀草属下的一个种。

Oligomeris linifolia is a species of flowering plant in the small family Resedaceae known by the common name lineleaf whitepuff. It is native to parts of the Middle East and the Indian subcontinent, as well as southern Europe and North Africa, and the southwestern United States and northern Mexico. It grows in many types of habitat, including disturbed areas and saline soils, in deserts, plains, coastline, and other places. It is a fleshy annual plant, producing several erect, ribbed stems 35 to 45 centimeters in maximum height.