TREES AND SHRUBS

About 1700 tree species are native to Southern Africa; well over 100 more exotic tree species have become naturalised in the region. Gauteng falls within the Grassland Biome, with a small section in northern Gauteng falling into the Savanna (Bushveld) Biome. However, over time, large portions of the original vegetation have been modified due to urbanisation.

South Africa has an incredible variety of organisms. This is because we have so many different ecosystems: the Grasslands of the Highveld; the Vynbos of the Cape; the forests of KwaZulu-Natal; and many more. Each of these unique ecosystems is made up of various habitats which encompass multiple complex communities of plants and animals.

Gauteng is often considered the business central of South Africa and for good reason. Rapid development in this relatively small province has led to the destruction of large areas of natural habitat and will continue to do so unless measures are taken to ensure positive development while preserving biodiversity.

Trees are extremely important to all forms of life and have many uses essential to humanity.  Trees and plants are the lungs of our world because they convert carbon dioxide into oxygen; they filter the air of pollutants; they provide excellent shelter for many animals; they are used as nesting sites for many species; they provide food in the form of fruit; they feed the soil with their wood and leaves; their wood is used for manufacturing of numerous products; and they provide excellent burning material for heat, light and industry. They are also aesthetically pleasing and are used in many different landscaping designs.

Every tree species is unique and offers different benefits to an ecosystem. Variety is the “spice of life” and this can be applied to vegetation. The more tree and plant species that occur within an ecosystem, the greater its value is to the organisms which inhabit the area. This is referred to as heterogeneity and is fundamental to animal biodiversity.

If you have seen a species in the area that is not on the below list please contact me so I can add it. Please be aware that if the species you saw is unusual or out of range I will need a photo as verification before I can add it to the list.

Email: Biodiversity@gekco.org.za

Acacia caffra - Common hook-thorn
Acacia karroo - Sweet Thorn
Acacia mearnsii - Black Wattle
Acacia melanoxylon - Australian Blackwood
Acacia podalyriifolia - Pearl acacia
Acacia robusta - Ankle thorn; Brack thorn
Acacia sieberiana - Paperbark thorn
Acokanthera oppositifoloia - Common Poison Bush
Agave sp
Brachylaena rotundata - Mountain Silver Oak
Buddleja saligna - False Olive
Buddelja salvifolia - Sagewood
Calodendrum capensis - Cape Chestnut
Canthium mundianum
Canthium mundianum gilfillanii - Velvet rock alder
Carissa bispinosa - Forest num-num
Cassine burkeana - Transvall Kooboo Berry
Cassine transvaalensis - Transvaal saffron
Celtis africana - White stinkwood
Clerodendrum glabrum - White Cats Whiskers
Combretum erythrophyllum - River bush willow
Combretum molle - Velvet Bushwillow
Cotoneaster pannosa - Cotoneaster
Cryptolepis oblongifolia - Bokhoring
Cussonia paniculata - Mountain Cabbage Tree
Dichrostachys cineria - Sickle bush
Diospyros lycioides - Bluebush
Diospyros whyteana - Bladder-nut
Dombeya rotundifolia - Common wild pear
Dovyalis zeyheri - Wild Apricot

Ehretia rigida - Puzzle bush
Englerophytum magalismontanum - Transvaal milkplum
Eucalyptus camaldulensis - Blue gum tree
Eucalyptus grandis - Flooded gum, Rose gum
Euclea crispavar. crispa - Blue guarri
Euclea schimperi - River guarri
Euclea undulata - Common guarri
Euphorbia sp.
Ficus ingens - Red-leaved fig
Gardenia sp.
Grewia flava - Velvet Raisen
Grewia occidentalis - Cross-berry
Gymnosporia buxifolia - Common spike thorn
Halleria lucida - Tree Fuschia
Heteromorpha arborescens - Parsley tree
Jacaranda mimmosfolia - Jacaranda tree
Lannea edulis - Wild grape
Lantana camara - Tick Berry
Lantana rugosa - Birds Brandy
Lippia javanica - Fever Tea
Lopholaena platyphylla - Broad-leaved fluff bush
Maerua cafra - Common bush-cherry
Maytenus polyacantha
Melia azedarach - Syringa tree
Mundulea sericea - Cork bush
Mystroxylon aethiopicum - Kooboo-berry
Nerium oleander - Oleander
Nuxia congesta - Common Wild Elder
Olea europaea subsp. africana - Wild olive
Opuntia ficus-indica - Prickly Pear
Osysris lanceolata - Rock Tannin Bush
Ozoroa sp. - Resin tree

Pappea capensis - Jacket-plum
Parinari capensis - Dwarf Mobola
Pavetta gardeniifolia - Christmas bride’s bush
Pinus pinaster - Cluster pine
Pittosporum viridiflorum - Cheesewood
Populus canescenes - Grey Poplars
Protea caffra - Common Protea
Rhus dentata - Nana-berry
Rhus discolor - Grassveld Karree
Rhus dura
Rhus lancea - Karree
Rhus Leptodictya - Mountain Karree
Rhus pyroides - Common wild current
Rhynchosia nitens - Ferweelboontjie
Robinia pseudoacacia - Black locust
Sarcostemma viminale - Rapunzel plant
Scolopia zeyheri - Thorn pear
Senecio barbertonicus - Barberton Groundsel
Solanum mauritianum - Bug tree/ Bugweed
Seriphium plumosum - Bankrupt bush/ Slangbos
Strychnos pungens - Spine-leaved monkey-orange
Tapinanthus natalitius - Natal mistletoe/ Birdlime bush
Tapinanthus rubromarginatus - Red Mistletoe
Tapiphyllum parvifolium - Wild Medlar
Tecomeria capensis - Cape honeysuckle
Vangueria infausta - African Medlar
Zanthoxylum capense - Small knobwood
Ziziphus mucronata - Buffalo-thorn
Ziziphus zeyheriana - Dwarf Buffalo Thorn