透骨草属（学名：Phryma）是透骨草科下的一个属，为直立、多年生草本植物。该属仅有透骨草（Phryma leptostachya）一种，分布于北美至亚洲东部。

Phryma leptostachya, or lopseed, is a perennial herb. The genus is native to eastern North America (roughly, everywhere east of the Rocky Mountains) and Asia (Japan, Nepal, India and West Pakistan), and consists of either one or two species, depending on whether the American and Asian species are considered separate or not.