Roalson, E.H.; Hall, J.C.; Riser, J.P.; Cardinal-McTeague, W.M.; Cochrane, T.S.; Sytsma, K.J. 2015. A revision of generic boundaries and nomenclature in the North American cleomoid clade (Cleomaceae). Phytotaxa. 205(3): 129-144.

Roalson, E.H.; Hall, J.C.; Riser, J.P.; Cardinal-McTeague, W.M.; Cochrane, T.S.; Sytsma, K.J. 2015. A revision of generic boundaries and nomenclature in the North American cleomoid clade (Cleomaceae). Phytotaxa. 205(3): 129-144.