Packera is a genus of about 75 species of plants in the daisy family, Asteraceae.

[1] Most species are commonly called ragworts or grounsels.

Its members were previously included in the genus Senecio (where they were called aureoid senecios by Asa Gray), but were moved to a different genus based on chromosome numbers, a variety of morphological characters, and molecular phylogenetic evidence.

[2] As of March 2023[update], Plants of the World Online accepted the following species.

[1] English names are based on the PLANTS database.