What is "cibirhiza"

Cibirhiza is a genus of plants in the Apocynaceae, first described as a genus in 1988. It is native to central and eastern Africa and to the Arabian Peninsula.

1. Cibirhiza albersiana Kunz, Meve & Liede - Tanzania, Zambia
2. Cibirhiza dhofarensis P.Bruyns - Oman
3. Cibirhiza spiculata Thulin & Goyder - E Ethiopia