Euclea is a group of flowering plants, belonging to family Ebenaceae, the ebony family, described as a genus by Linnaeus in 1774. It includes evergreen trees and shrubs, native to Africa, the Comoro Islands, and Arabia. Several species are used for timber, producing a hard, dark heartwood timber similar to ebony.

Euclea divinorum commonly known as Magic Guarri in English and Towerghwarrie in Afrikaans is a useful medicinal plant. Although not very tasty to humans, its fruit is enjoyed by birds. The tree is also said to be magical and to possess supernatural powersit can bring luck to your home. Euclea divinorum is a South African indigenous evergreen shrub or small tree, up to 9 m high with male and female flowers on separate plants. It is single or multi-stemmed, with a rounded crown. Young stems are smooth and pale grey with rusty granules. The bark is grey-brown to black, rough and cracked longitudinally. The leaves are opposite or sub-opposite, alternate, broadest at or below the middle, 3590 × 1040 mm, tapering to the bases and apices, hard, leathery, hairless, shiny, grey- to olive-green, with the midribs raised below and margins conspicuously wavy. Leaf stalks are about 6 mm long. Scented flowers are small, white to creamy-yellow and borne on short, dense branched sprays to 15 mm wide from axils of leaves; stalks covered in reddish-brown granules. Euclea divinorum flowers from August to December. The fruit is round, purplish black, about 57 mm in diameter, single-seeded and fleshy. Euclea divinorum can be confused with Euclea undulata, but the magic guarri has larger leaves and fruits, with a denser inflorescence. Euclea crispa has leaves that are broad in the middle, hairy branchlets and one inflorescence per leaf axil. The frayed ends of twigs are used as toothbrushes and branches are good to put out veld fires with. The fruit is edible (not very tasty), loved by birds, and also used to make purple ink and used in the brewing of beer. The roots are used medicinally for the treatment of toothache, headache, convulsions, diarrhoea, infertility, and bilharzia and as a purgative. Roots are also used in the production of brown dye for basket ware. The wood is fairly heavy and hard, and occasionally used to make small items of furniture. The wood is alleged to have supernatural powers and is therefore avoided as fuel; small branches are often hung at the doorsteps of houses as a good luck charm. Due to its tolerance to soils containing high levels of heavy metals, it has also been considered an indicator of gold deposits.