Erigeron squarrosus

Erigeron squarrosus may refer to three different species of plants:
 * Erigeron squarrosus Walter, a synonym for Chrysopsis gossypina subsp. gossypina (Michx.) Elliott
 * Erigeron squarrosus Lindl., a synonym for Erigeron glaucus Ker Gawl.
 * Erigeron squarrosus (L.) Clairv., a synonym for Pentanema spiraeifolium (L.) D.Gut.Larr. et al.