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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

Ant tree

Triplaris americana

Common name:

Ant tree

Scientific name:

Triplaris americana (Polygonaceae)

Alternative common names:

Triplaris, Indian almond (English); triplaris (Afrikaans)

This tree grows 8-10m high with a straight, smooth, grey trunk with pyramidal crown. Leaves are bright green and smooth, or brownish-velvety beneath along the midrib and veins. Small male and female flowers on separate trees from April to May in large clusters, along densely greyish-yellow, light brown hairy axes. Female flowers red. Shiny brown fruits. Poisonous leaves.

Additional Info

  • Where does this species come from?

    Central and South America.

    What is its invasive status in South Africa?

    CARA 2002 – Category 1 NEMBA – Category 1a

    Where in South Africa is it a problem?

    KwaZulu-Natal.

    How does it spread?

    Seed dispersal.

    Why is it a problem?

    Competes with and has the potential to replace indigenous species. The leaves are also poisonous.

    What does it look like?

    General description: This tree grows up to 8-10m and has a straight trunk with smooth, grey bark. Leaves: Leaves are bright green and smooth, or brownish-velvety beneath along the midrib and veins. Flowers: Small male and female flowers on separate trees from April to May in large clusters, along densely greyish-yellow, light brown hairy axes. Female flowers are red. Fruit/seeds: Shiny brown, sharply three-angled seeds, held inside the fruiting perianth, 30-50mm long, with brown hairy base and three pinkish-red wings.

    Does the plant have any uses?

    Planted as an ornament.

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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