Literature:
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Brummitt, R.K., Harder, D.K., Lewis, G.P., Lock, J.M., Polhill, R.M. & Verdcourt, B. (2007). Leguminosae Subfamily Papilionoideae Flora Zambesiaca 3(3) Pages 234 - 236.
Drummond, R.B. (1972). A list of Rhodesian Legumes. Kirkia 8(2) Page 226.
Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 269. (Includes a picture).
Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 51.
Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 72.
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