This member of the Fabaceae family was given this name by Jean Baptiste Antoine Pierre de Monnet de Lamarck in 1786. It is found in Angola, Botswana, Burundi, Central African Republic, Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre and Zimbabwe. It is growing in a well drained soil with some water and lots of sun. The stem starts as a nice caudex, but grow into a 35-60 centimetre slim stem, forming a three to ten meter high tree with large, orange-red flowers.
The genera name from Greek; eryhros; 'red' for the mostly red flowers. The species name means 'from Abyssinia', present day Ethiopia.

