臭菘属（学名：Symplocarpus）是天南星科下的一个属，为粗壮草本植物。该属仅有臭菘（Symplocarpus foetidus）一种，分布于东亚和北美。

Symplocarpus is a genus of flowering plants in the family Araceae, native to United States, Canada and eastern Asia. The genus is characterized by having large leaves and deep root systems with contractile roots used for changing the plant's level with the ground. Symplocarpus species grow from a rhizome and their leaves release a foul odor when crushed.