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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

Australian Blackwood is a tree up to 20 m high, with a bole of about 150 cm in diameter. The bark on older trunks is dark greyish-black in colour, deeply fissured and somewhat scaly. Younger branches areribbed, angular, or flattened towards their tips and are greenish in colour.

These branchletsare usually mostly hairless (glabrousorglabrescent), but the stems of younger plants are sometimes more obviously hairy (denselypubescent).

Published in Invasive Plants

Evergreen shrub or broadly conical tree up to 12m high. Dark green, shiny leavers tapering at both ends and usually wavy margins at the end of the branches. Fragrant white flowers in terminal clusters from August to September. Showy, orange turning brown capsules. 

Published in Invasive Plants

A large, densely branched and untidy spreading small tree reaching up to 8m high. The old stems are twisted and furrowed with flaking bark. Dull greyish-green, leathery leaves with rounded tips which end in a tiny point. Solitary white flowers appear from August to October. The green fruit capsules turn yellow and then grey.

Published in Invasive Plants

A large, evergreen tree 18-30m high with a straight trunk and moderately spreading crown. Leaves are dark green above and greyish-white or rusty-silk beneath and have a fern-like profile. Golden-orange flowers in terminal, bottle-brush-like sprays from September to November. Brownish-black, leathery fruits contain up to two winged seeds

Published in Invasive Plants

A small evergreen tree, growing 3-6m in height with branchlets covered in greyish or silvery-blue foliage. Leaves are 20-50mm long and are arranged around branchlets spirally.

Flowers which bloom in July to September, are bright yellow, globular shaped with showy sprays.  Fruits are greyish-brown pods, approximately 100mm in length.

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