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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

Long-leaved wattle

Acacia longifolia

Common name:

Long-leaved wattle

Scientific name:

Acacia longifolia

Alternative common names:

Langblaarwattel (Afrikaans)

The long-leaved wattle is an evergreen shrub or spreading tree 2-6m high, with long bright green leaves that have prominent longitudinal veins. Flowers are bright yellow and cylindrical in shape, growing up to 50mm long and 7mm wide, from July to September. Originating from Australia and Tasmania, the long-leaved was cultivated in South Africa for dune reclamation, and has spread along the coastal areas, where it competes with and replaces invasive species.

Additional Info

  • Where does this species come from?

    South-east Australia and Tasmania

    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, Kwa-Zulu Natal and scattered parts of Mpumalanga Province

    How does it spread?

    Seed dispersal

    Why is it a problem?

    It is a transformer species which out-competes indigenous species.

    What does it look like?

    General description: The long-leaved wattle is an evergreen shrub or spreading tree 2-6m high, with long bright green leaves that have prominent longitudinal veins. Leaves: Leaves are bright green, up to 180mm long, with 2-5 prominent longitudinal veins Flowers: Bright yellow, cylindrical flowerheads, from July to September Fruit/seeds: Pale brown pods

    Does the plant have any uses?

    Cultivated for dune reclamation.

    Plant me instead alternatives

    Sand olive (Dodonea angustifolia), bush guarri (Euclea racemosa), real yellowwood (Podocarpus latifolius), duiker-berry (Sapium integerrium)

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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