The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Flora of North America Editorial Committee, e. 2006. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Fl. N. Amer. 21: i–xxii + 1–616.
- Proceedings of the American Academy of Arts and Sciences 51(10): 520–521. 1916. (Proc. Amer. Acad. Arts)
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