[1]
Schilling, E., Scott, R.W. and Panero, J.L. 2015.

A revised infrageneric classification for Brickellia (Asteraceae, Eupatorieae)

. Phytotaxa. 234, 2 (Nov. 2015), 151–158. DOI:https://doi.org/10.11646/phytotaxa.234.2.5.