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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

Forming a “National Working Group on Alien Grasses”

Vernon Visser –University of Stellenbosch

We have 113 naturalised grasses species in South Africa and 7 CARA category 1 grass species.

The idea is to establish a national working group in South Africa aiming at developing a national strategy for alien grasses and conducting a national risk assessment of potential alien grass invaders.

The grasses form the fourth largest plant family with over 11,000 species with some of the most important crop and pasture species, so it is not surprising that many grass species have been extensively moved around the world.

Some of the best examples of invasive species causing radical ecosystem transformations are also the result of introduced grasses—e.g. radically altered fire regimes—with grasses of African origin having often the largest impacts.

Comparatively, Africa appears to have suffered far smaller impacts from invasive grasses, with some notable exceptions, e.g. giant reed (Arundo donax), Pampas grass (Cortaderia selloana) Kikuyu grass (Pennisetum clandestinum) and a number of annual grasses of Eurasian origin.

For more information please see the fact sheets below:

Giant reed (Arundo donax) 

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General News Updates

2019 National Symposium on Biological Invasio…


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


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


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?


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


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


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