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German wasp | Vespula germanica

German wasp

Vespula germanica

Coral bush | Ardisia crenata

Coral bush

Ardisia crenata

Purple loosestrife | Lythrum salicaria

Purple loosestrife

Lythrum salicaria

Pom pom weed | Campuloclinium macrocephalum

Pom pom weed

Campuloclinium macrocephalum

Canarybird bush | Crotalaria agatiflora

Canarybird bush

Crotalaria agatiflora

Peanut butter cassia | Senna didymobotrya

Peanut butter cassia

Senna didymobotrya

Rubber vine | Cryptostegia grandiflora

Rubber vine

Cryptostegia grandiflora

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Environmental Programmes

In order to tackle our country’s socio-economic challenges, the government adopted the Outcomes based approach to improve government performance and providing focus on service delivery. find out more

A deciduous tree growing up to 16m high which suckers freely with white or grey bark with horizontal lines that becomes rough and darker with age. Buds and young twigs are thickly white and woolly. The dark green leaves are shiny above and white or grey and woolly beneath. Greenish-yellow catkins appear in spring. It invades river banks, vleis and dongas.

Published in Invasive Plants

Willow hakea is a shrub or small tree adapted to a Mediterranean climate. It is capable of surviving hot, dry summers but not restricted to these conditions. It flowers in spring and early summer (September to January) in South Africa. Infestations of this plant replace indigenous vegetation and prevent the regeneration of indigenous species.

Published in Invasive Plants

A Working for Water team under supervision of Germinah Ledwaba removed a thick stand of black wattles (Acacia mearnsii) in Bassonia, Gauteng, next to the N12 highway. A team was photographed in the area on 5 March 2013, busy with a large-scale felling operation.

Published in News updates

Ornamental, densely leafy evergreen shrub or small tree up to 4m high. Leaves are bright green above, paler below, with sharply toothed margins. Bright yellow, showy, trumpet-shaped flowers in terminal sprays from October to May. Brown, shiny fruit capsules 12-20cm long that split open to release papery winged seeds.

Published in Invasive Plants

Densely leafy, evergreen shrub or small tree up to 6m high with milky sap. Leaves are narrow, lance-shaped, bright green, glossy above and paler below. Flowers are yellow-orange, sometimes fragrant, trumpet-shaped, twisted in the bud. Fruits are drupe-like, slightly fleshy, green turning yellow, and finally hard turning black, broad triangular in outline with a raised ridge across the middle. Poisonous.

Published in Invasive Plants
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General News Updates

2019 National Symposium on Biological Invasio…

26-02-2019

This is your invitation to South Africa's 2019 National Symposium on Biological Invasions. The convention is hosted by the Centre for Invasion Biology (CIB), University of Stellenbosch, and the Biolo... Read more

2019 Invasive Species Training

22-01-2019

During the past five years (2014-2018), ISSA invasive species trainers have trained 4 000 in the identification of invasive species and laws pertaining to invasive species across South Africa.  ... Read more

Alien Grass Working Group

04-09-2018

Who are we? The South African National Alien Grass Working Group was jointly initiated by the South African Biodiversity Institute (SANBI) and the Centre for Excellence in Invasion Biology (C·I·B) in... Read more

Permits for planting indigenous Cynodon?

01-03-2018

On 16 February, 2018, South Africa's Department of Environmental Affairs issued amendments to the regulations and lists relating to the National List of Invasive Species.  Updates to the draft&n... Read more

Invasive species training 2018 dates released

28-02-2018

Interested in invasive species?  How much do you know about NEMBA invasive species compliance for landowners and organs of state? The South African Green Industries Council (SAGIC) have released... Read more

Communications post for Africa advertised

25-01-2018

The Nature Conservancy has advertised a brand new post:  Communications Manager, Africa Region. Knowledge of invasive species and water would be an asset in this post. See details below:    Job Titl... Read more