虫实属（学名：Corispermum）是藜科下的一个属，为一年生草本植物。该属共有约60种，分布于亚洲、欧洲及美洲北部。

Corispermum is a genus of plants in the goosefoot family. Common names given to members of the genus involve bugseed, tickseed, and tumbleweed. In general, these are erect annual plants with flat, thin leaves and topped with inflorescences of flowers with long bracts. Bugseeds are native to North America and Eurasia, but little is known about their taxonomy and distribution.