What is "dignathia"

Dignathia is a genus of African and Asian plants in the grass family.

1. Dignathia aristata Cope - Kenya
2. Dignathia ciliata C.E.Hubb. - Ethiopia, Somalia
3. Dignathia gracilis Stapf - Somalia, Kenya, Tanzania, Mozambique
4. Dignathia hirtella Stapf - Ethiopia, Somalia, Kenya, Oman, Yemen, Gujarat
5. Dignathia villosa C.E.Hubb. - Ethiopia, Somalia