INDIGOFERA zenkeri Bak. f. [family LEGUMINOSAE-PAPILIONOIDEAE], in J.B. 41: 241 (1903); De Wild., Pl. Bequaert. 2: 548 (1924); L.T.A.: 127 (1926); F.P.N.A. 1: 299 (1948), pro majore parte; T.T.C.L.: 427 (1949); F.P.S. 2: 211 (1952); Gillett in K.B. 24: 486 (1970). Type: Cameroun, Na Finati on Sanaga R., Zenker 1456 (BM, holo. !, K, iso.!)
INDIGOFERA zenkeri De Wild. var. brevifoliolata [family LEGUMINOSAE-PAPILIONOIDEAE], in B.J.B.B. 8: 158 (1923); F.P.N.A. 1: 300 (1948). Type: Congo, Kivu, Rutshuru, Bequaert 6097 (BR, holo. !)
INDIGOFERA multifoliolata De Wild. [family LEGUMINOSAE-PAPILIONOIDEAE], Pl. Bequaert. 2: 539 (1924); F.P.N.A. 1: 300 (1948). Type: Congo, Kivu, Beni, Bequaert 3371 (BR, holo. !)
INDIGOFERA viscosa [family LEGUMINOSAE-PAPILIONOIDEAE], [sensu Cronquist in F.C.B. 5: 144 (1954), pro majore parte, non Lam.]
INDIGOFERA colutea var. colutea [family LEGUMINOSAE-PAPILIONOIDEAE], [sensu Gillett in K.B., Add. Ser. 1: 65 (1958), pro parte, non (Burm. f.) Merr.]