山桃草属（学名：Gaura）是柳叶菜科下的一个属，为一年生或多年生草本植物。该属共有约18种，分布于美洲。

Gaura is a genus of flowering plants in the family Onagraceae, native to North America. The genus includes many species known commonly as beeblossoms. Recent genetic research has shown that the genus is paraphyletic unless the monotypic genus Stenosiphon is included within Gaura, increasing the number of species in the genus to 22.