Dracaena hanningtonii, synonym Sansevieria ehrenbergii, (blue sansevieria, sword sansevieria, oldupai, or East African wild sisal) is a flowering plant which grows in northeastern and eastern tropical Africa (Djibouti, Eritrea, Ethiopia, Kenya, Somalia, Sudan and Tanzania) and the Arabian Peninsula (Oman and Saudi Arabia).
It occurs notably in proliferation along the Olduvai Gorge in northern Tanzania