2 literature references for Desmodium tortuosum sensu Hepper, p.p.:

Author: Gillett,J.B. et al.
Year: 1971
Title:
Source: Papilionoideae.In:Fl.Trop.E.Africa,Milne-Redhead & Polhill
Author: Hepper,F.N.
Year: 1958
Title:
Source: Papilionoideae.In:Flora West Tropical Africa.Keay,R.W.J.