This member of the Fabaceae family was given this name by Hermann August Theodor Harms in 1903. It is found in Angola, Botswana, Congo, Namibia, Zambia, Zaïre and Zimbabwe, growing in a well drained soil with some water and some to lots of sun. The caudex can grow large, the annual branches to 75 centimetres in height. The flowers are scarlet red.
The genera name from Greek; eryhros; 'red' for the mostly red flowers. The species is named after Hugo Baum, 1867–1950, a German botanist who worked in Africa, Rostock and Mexico. And the seeds close-up by John E. Burrows, Boldsystems.org.

