Chamaecristalundii is the name of a species, part of the genus Chamaecrista.
This name is an alternative combination by H.S.Irwin & Barneby of an original description of species by Benth. under the rules of the International Code of Nomenclature for algae, fungi, and plants (ICN / commonly called the botany code)..
Cassialundii Benth.Cassialundii is the combination used by Benth. in the original description of the species.