Genus Chaenactis is a group of flowering plant species found in North America. It belongs to the family Asteraceae. These plants are known for their showy blooms and hardiness in dry conditions. There are several synonyms for the Genus Chaenactis, including Attenuata, Hemizonella, Unitya, and Pseudoaster. Despite the different names, all of the species under this genus share similar features like their flower heads, which have a disc-like center and ray-like petals. These plants are mostly found in rocky or sandy areas and are a common sight in the arid regions of the United States, Mexico, and Canada. These synonyms help botanists to classify and identify different types of Genus Chaenactis species.