Englund M., P.Pornpongrungrueng, M.H.G. Gustafsson & A.A. Anderberg (2009) Phylogenetic relationships and generic delimitation in Inuleae subtribe Inulinae (Asteraceae) based on ITS and cpDNA sequence data. Cladistics 25: 319-352. https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1096-0031.2009.00256.x
Gutiérrez-Larruscain D., M. Santos-Vicente, A.A. Anderberg, E. Rico1 & M.M. Martínez-Ortega (2018) Phylogeny of the Inula group (Asteraceae: Inuleae): Evidence from nuclear and plastid genomes and a recircumscription of Pentanema. Taxon 67: 149-164. https://onlinelibrary.wiley.com/doi/epdf/10.12705/671.9.
Nylinder S., A.A. Anderberg. (2015) Phylogeny of the Inuleae (Asteraceae) with special emphasis on the Inuleae-Plucheinae. Taxon 64: 110-130.
Note: GBIF records include introduced and cultivated plants. Consequently, the distribution shown often differs from statements about a taxon's native distribution.