Heiden, G. and Ribas, O.D.S. 2012.

Baccharis umbellata (Asteraceae, Astereae): a new species endemic to the highest summits of Paraná, Southern Brazil

. Phytotaxa. 49, 1 (Mar. 2012), 23–28. DOI:https://doi.org/10.11646/phytotaxa.49.1.3.