Vachellia xanthophloea is a tree in the Fabaceae family and is commonly known in English as the fever tree (local East African names include olerai, kimwea, murera, and mwelele). This species of Vachellia is native to eastern and southern Africa.
A. xanthophloea is one of the fastest-growing thorn-tree species in southern Africa, with a growth rate of 1-1.5 m/year. It can withstand lopping. If planted as an ornamental, trees should be planted in groups of up to 5 for the best effect.
This species does not have an aggressive taproot, but because of its large size it should not be planted close to
A. xanthophloea grows near swamps, riverine forests or at lakesides and is able to tolerate several degrees of frost. It
grows in semi-evergreen bushland and woodland in areas with a high groundwater table and often forms dense stands in
seasonally flooded areas. Trees can withstand cold but not cold winds or frost