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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

Honey locust

Gleditsia triacanthos

Common name:

Honey locust

Scientific name:

Gleditsia triacanthos (Fabaceae)

Alternative common names:

Honeyshuck; sweet locust (English); soetpeulboom; driedoringboom; springkaanboom (Afrikaans); leoka (Sesotho)

A deciduous, spreading tree 15-20m tall. The trunk and branches have three-branched spines. Bright green bi-pinnate leaves consist of small paired lance-shaped and minutely toothed. Small, yellowish-green flowers appear from October to November. The seed capsules are flat and twisted brown pods.

Additional Info

  • Where does this species come from?

    North America

    What is its invasive status in South Africa?

    Existing legislation: CARA 2002 – Category 1 NEMBA – Category 1b.

    Where in South Africa is it a problem?

    Western Cape, Eastern Cape, KwaZulu-Natal, Free State, Gauteng and Mpumalanga

    How does it spread?

    Spreads by seed dispersal

    Why is it a problem?

    It competes with and replaces indigenous species. Dense stands along watercourses could significantly reduce stream flow

    What does it look like?

    General description: An acacia-looking spreading tree growing 15-20m in height with sword-like thorns. Leaves: Bi-pinnate bright green leaves up to 200mm long. Flowers: Small, yellowish-green bundled flowers appear from October to November. Fruit/seeds: Dark, reddish-brown pods which are often twisted in profile.

    Does the plant have any uses?

    Fodder and donga reclamation

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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