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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 tall evergreen tree up to 40m high with arching, slender branches. Leaves have minute scales in whorls and are very much pine-like. The male flowers appear as yellowish spikes and female flowers in reddish heads from September to April and this tree produces small brown woody cones about 20mm long

Published in Invasive Plants

An impressively large, soft-wooded, semi-evergreen tree capable of growing 12-20m high, with a short, buttressed trunk and a hugely branched, rounded crown. The leaves and stems are succulent. It has bright green leaves about 70mm long which oval-shaped terminating in a gentle point with smooth margins. Creamy-yellow flowers appear in clusters about 100mm long with male and female flowers appearing on separate trees from September-December. This tree produces berry-like fruits which are initially green then turning black, almost resembling a mulberry. It invades savanna, fynbos, coastal bush, river banks, roadsides and urban open spaces.

Published in Invasive Plants

Black cherryis a deciduous tree, growing up to 15-30 metres tall, with a trunk diameter of up to 70-120cm.A mature black cherry can easily be identified in a forest by its very broken, dark grey to black bark, which has the appearance of very thick, burnt cornflakes.

Published in Invasive Plants

The black ironbark, also known as the mugga or red ironbark, is a small to medium-sized, evergreen tree reaching 15-26m high. It has a moderately spreading crown and shallow roots that may outcompete adjacent plants. The bark is hard and deeply furrowed.

Published in Invasive Plants

A deciduous tree up to 12m high, exceptionally 25m, with an oval or rounded crown and bark that is dark brown and deeply furrowed. It suckers freely and often forms thickets. Young stems and branchlets have short spines. Small, bright green leaves above and paler beneath which become yellow in autumn. White, fragrant flowers in drooping sprays from September to November. Reddish-brown pods. The seeds, leaves and inner bark are poisonous seeds.

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