Iresine is a genus of flowering plants in the family Amaranthaceae.

The generic name is derived from the Greek word εριος (erios), meaning "wooly", referring to the trichome-covered flowers.

[3] Bloodleaf[4] is a common name for those species that have colored foliage, and these are often cultivated as ornamental plants.

Some species are additives to versions of the hallucinogenic drink ayahuasca.

As of April 2022[update], Plants of the World Online accepted the following species:[2]