Vachellia is a genus of flowering plants in the legume family, Fabaceae, commonly known as thorn trees or acacias. It belongs to the subfamily Mimosoideae. Its species were considered members of genus Acacia until 2009. Vachellia can be distinguished from other acacias by its capitate inflorescences and spinescent stipules. Before discovery of the New World, Europeans in the Mediterranean region were familiar with several species of Vachellia, which they knew as sources of medicine, and had names for them that they inherited from the Greeks and Romans. The wide-ranging genus occurs in a variety of open, tropical to subtropical habitats, and is locally dominant. In parts of Africa, Vachellia species are shaped progressively by grazing animals of increasing size and height, such as gazelle, gerenuk and giraffe. The genus in Africa has thus developed thorns in defence against such herbivory. The members of Vachellia are trees or shrubs, sometimes climbing, and are always armed. Of the 163 species currently assigned to Vachellia, 52 are native to the Americas, 83 to Africa, Madagascar and the Mascarene Islands, 32 to Asia and 9 to Australia and the Pacific Islands.

Vachellia hebeclada ssp. hebeclada commonly known as Candlepod Thorn in English and Trassiedoring in Afrikaans is another truly beautiful Vachellia for the garden. Out is the wild it is a low-growing dense shrub, 1 to 2 meters tall with a spread of 14 meters. However, in the garden, under cultivation and with regular pruning, it reaches about 6 meters in height with a spread of 4 to 5 meters. From winter to spring this stunner puts on a magnificent display of gorgeous sweetly scented creamy white balls of flowers which are followed by equally beautiful erect velvety seedpods. This is a low maintenance plant, requiring very little water once established. Its ease of cultivation and its response to pruning makes it a very good candidate for bonsai treatment.