[Conserved name]Rousselia Gaudichaud-Beaupré in Freycinet, Voyage Monde Bot. 503. Mar 1830 (‘1826’).
T.: R. lappulacea (Swartz) Gaudichaud-Beaupré (l.c. t. 98) (Urtica lappulacea Swartz) in Kongl. Vetenskaps Academiens Nya Handlingar 8: 69. 1787.
Urtica lappulacea is the basionym of Rousselia lappulacea, type of the genus Rousselia in the nettle family Urticaceae. This genus is distinguished by its small female inflorescences consisting of two female flowers fused at their base and enclosed in two sets of bracts. The genus is restricted to the Greater Antilles and Southern Mexico.