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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

An evergreen tree growing 5-10m high, black wattle has dark olive-green finely hairy leaves. Pale yellow or cream spherical flowers in large fragrant sprays blooming from August to September. Fruits are dark brown, finely haired pods.

Black wattle has invaded grasslands, competing with and reducing indigenous species, and reducing grazing land for wild and domestic animals.

Published in Invasive Plants

Evergreen shrub or small tree up to 8m high with hairy branchlets. Light green, thick leaves that are hairy below. White flowers in groups of 1-3 from October to December. Green fruit which turns pale yellow and bitter tasting.

Published in Invasive Plants

A shrub or small tree up to 4m high covered with whitish-felty hairs. Dull green leaves that are velvety above and white-felty beneath which emit a strong smell when bruised. Purple flowers in compact, terminal clusters on densely felty stalks up to 10cm long all year round. Spherical berries which start off green and turn yellow, in compact terminal clusters. Hairy leaves and stems are a respiratory tract and skin irritant. Unripe fruits are poisonous.

Published in Invasive Plants

The butterfly orchid tree grows up to 6-10m high. Leaves are thick, deeply divided into two lobes and 100mm long. Flowers are colourful in shades of blotched pink to red striped, as well as cream or purple. They are 80-100mm wide with narrow, non-overlapping petals and three fertile stamens. The fruits consist of green elongated pods which turn dark brown. 

Published in Invasive Plants

This tree is an evergreen tree growing 10-26m high with a dense canopy. It has smooth bark which is green becoming rough, scaly and brownish-grey. Trunk becomes massive and spreading at its base. The leaves reddish when young turning glossy bright green above and blue-grey beneath and three-veined from the base. Tiny yellowish or greenish-white flowers appear from September to November

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