Baird, G.I. 2006. Agoseris. In: Flora of North America Editorial Committee, ed. Flora of North America North of Mexico. Volume 19 Magnoliophyta: Asteridae (in part): Asteraceae, part 1. New York, NY: Oxford University Press: 323-334.
Baird, G.I. 2006. Agoseris. In: Flora of North America Editorial Committee, ed. Flora of North America North of Mexico. Volume 19 Magnoliophyta: Asteridae (in part): Asteraceae, part 1. New York, NY: Oxford University Press: 323-334.