This name is a synonym of Indigofera charlieriana var. sessilis (Chiov.) J.B. Gillett.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13072926) with original publication details: Fl. Somala 2: 160 1932.
This name was in version 1 of The Plant List, record tro-13072926.