Isagogwane (Pappea capensis) — Jacket Plum

Pappea capensis is a medium-sized evergreen tree in the soapberry family, growing five to ten metres tall with a rounded crown, rough grey-brown bark, and simple, leathery leaves that stay green through the dry season when much of the surrounding bush has lost its leaves. The tree produces small greenish flowers followed by round, leathery fruit capsules that split into three sections when ripe, exposing a glossy black seed half-covered by a bright orange, oily aril — the part most readily eaten, sweet and slightly tart. It grows across the drier woodlands of southern and eastern Africa, often on rocky ground where few other trees take hold so readily.

The bark is the most widely used medicinal part. A decoction of the dried bark, simmered gently in water for twenty to thirty minutes, is used across Zimbabwe and South Africa as a treatment for diarrhoea, dysentery, and stomach cramps. The bark is rich in tannins and saponins with demonstrated astringent and antibacterial activity, binding the bowel and calming inflammation in the gut lining. The same bark decoction, taken in smaller and more measured doses, is used traditionally as a treatment for skin conditions when applied as a wash — its antimicrobial compounds assist in reducing bacterial load on infected or slow-healing skin.

Root preparations are used for chest complaints, fever, and general body pain. A decoction of the roots, taken warm and in modest quantity, is prescribed by traditional healers for persistent coughs and the aching body that accompanies a lingering illness. In parts of South Africa, root bark is chewed directly, or a small piece held in the mouth, as a remedy for toothache — the astringent and mildly numbing compounds in the root offering temporary relief while more definitive dental care is sought.

The seed oil, pressed from the dark, glossy seed once the orange aril has been removed, is one of the tree's most valued gifts. Rich in oleic and linoleic fatty acids, jacket plum seed oil has long been used across southern Africa as a treatment for dry, cracked skin, and — most notably — as a traditional remedy applied to the scalp for dandruff, dryness, and even ringworm of the scalp. Worked gently into the hair and scalp, the oil conditions the hair shaft and calms an irritated, flaking scalp in a manner very similar to the way the more widely known marula and mango seed oils are used further north.

The fruit itself, eaten fresh for its bright orange aril, provided a welcome seasonal food rich in vitamin C and natural sugars during the late summer months. The black seed left behind, once cleaned and dried, was traditionally cracked and pressed at home for its oil — a slow, patient process passed from mother to daughter, yielding only a small amount of oil from a great many seeds, but valued precisely because of the care it required. Children eating the fruit straight from the tree, spitting the seeds into a tin to be gathered later for oil, were part of a household economy of gathering that stretched across the whole dry season.