Flora of Tropical East Africa.
Darbyshire, Iain.
Vollesen, Kaj Borge,(1946-)
Ensermu Kelbessa.
Beentje, Henk.
Royal Botanic Gardens, Kew.
East African Herbarium.
Kew : Published on behalf of the East African governments by Royal Botanic Gardens, Kew,
2008.
"Prepared at the Royal Botanic Gardens, Kew in cooperation with the East African Herbarium ... editor, H.J. Beentje".