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Sideroxylon inerme

Sideroxylon inerme
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
Order: Ericales
Family: Sapotaceae
Genus: Sideroxylon
Species: B. inerme
Binomial name
Sideroxylon inerme

Sideroxylon inerme subsp. inerme (aMasethole or white milkwood, Afrikaans: wit-melkhout, Xhosa: Ximafana, Zulu: Umakhwelafingqane)[1] is a Southern African coastal tree, with dense foliage, black berries and small, dainty white flowers. The tree's formal name means "Iron-wood" in Greek, referring to its very hard timber.

It is one of South Africa's "Protected Trees" and several specimens are provincial heritage sites.[2] This is the only member of the Sideroxylon genus in Southern Africa.


  • Distribution 1
  • Description 2
  • Sub-species 3
  • Historical aspects 4
  • Gallery 5
  • See also 6
  • References 7


The Sideroxylon inerme trees are scattered through the coastal woodlands and littoral forests of South Africa as far as Zimbabwe. Historically, dense forests of large Milkwood trees used to exist along the coast and bays of Cape Town, especially at Noordhoek, Macassar and Gordons Bay. The Milkwood is not endangered but it is one of South Africa's Protected Trees, which means that it is illegal to damage, move or destroy them.[2]


Sideroxylon inerme is a semi-coastal sturdy broadleaf evergreen tree with dense foliage, displays of white bisexual flowers and edible purplish-black berries. It boasts leathery, spiral leaves, which, like the berries, contain milky latex. Young branches and new leaves are always covered with fine hairs. The tree can reach 15 m.

The Milkwood has considerable value in traditional medicine and attracts birds, monkeys and other animals to its flowers and fruits : Speckled mousebirds eat the flowers ; birds, bats, monkeys and bush pigs eat the fruit. It is also an effective firebreak and is cultivated for that purpose.[2]


Sideroxylon inerme carries three sub-species :

Historical aspects

The "Treaty Tree" in Woodstock, Cape Town - in 1890.

The White Milkwood has great significance in South Africa's heritage, with three specimens proclaimed as provincial heritage sites:

  • The Post Office Tree in Mossel Bay is believed to be 600 years old. The Post Office tree, which still stands about 1000 feet from Santos Beach, is considered the first (unofficial) post office in South Africa. It was declared a provincial heritage site in 1938 and is marked with a plaque reading: “This post office tree stands near the fountains where the Portuguese navigators regularly drew water at Aguada de São Bras (now Mossel Bay) from 1488 onwards. In May 1500 Pêro de Ataíde, captain of a homeward bound ship of Pedro Cabral’s fleet, left a message here which was found on 7 July 1507 by the outward bound ships of João da Nova. According to tradition the message was placed in an old shoe and tied to a tree”. The seven year old letter described the loss at sea of four ships from the expedition of Bartolomeu Dias, and warned of hostilities encountered on the Indian coast. In 1962 SAPO, the South African postal service, erected a mail box at the tree in the shape of a shoe, and items posted from there are cancelled with a special stamp.[4]
  • The Treaty Tree in Woodstock, Cape Town stood next to the house where in 1806 the Batavian Republic (the modern Netherlands) surrendered Cape Town to the British.
  • The Fingo Milkwood in the Eastern Cape was the location where in 1835 the Fengu people signed a treaty of alliance with the Cape Colony.


See also


  1. ^ "Protected Trees". Department of Water Affairs and Forestry, Republic of South Africa. 3 May 2013. 
  2. ^ a b c Sideroxylon inerme in Freddie Bosman' site, from the Kirstenbosch National Botanical Garden.
  3. ^ Sideroxylon inerme in PROTA4U site, a database and use guide for African plants.
  4. ^ "The Portuguese in South Africa". Retrieved 10 January 2013. 
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