References

For Inula

Arriagada, J.E. 1998. The genera of Inuleae (Compositae; Asteraceae) in the southeastern United States. Harvard Papers in Botany 3: 1-48. Google Scholar

Brunton, D.F., M.J. Oldham, and A.V. Gilman. 2022. Himalayan Elecampane, Inula racemosa (Asteraceae), in North America. Rhodora 123(919) 19-30: Google Scholar

Cronquist, A. 1980. Asteraceae, Volume I, Vascular flora of the Southeastern United States. University of North Carolina Press, Chapel Hill, N.C. Google Scholar

Harriman, N.A. 2006a. Inula. In Flora of North America Editorial Committee. 2006a. Flora of North America north of Mexico. Volume 19, Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford Univ. Press, New York, NY. 579 pp. Google Scholar