Pennellia is a genus of flowering plants belonging to the family Brassicaceae.

[1] Its native range is from western central and southern central USA (Arizona, Colorado, New Mexico and Texas) and Mexico, to Central America (Costa Rica and Guatemala), Bolivia to southern South America (Argentina and Chile).

[1] The genus name of Pennellia is in honour of Francis W. Pennell (1886–1952), an American botanist best known for his studies of the Scrophulariaceae.

[2] It was first described and published in Amer.

[1] The following species are recognised in the genus Pennellia:[1]