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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

Invasive potential of Crotalaria agatiflora in SA

Thabong Phango-University of Johannesburg

Canary bird bush (Crotalaria agatiflora) is native to the tropical East Africa with its distribution mainly occurring in Tanzania, Kenya and Ethiopia.

In South Africa this plant was introduced as an ornamental garden shrub, but because it invades natural vegetation (savannah biome, grasslands, watercourses and forest margins) in Gauteng, North West, Limpopo, Mpumalanga, Free State, Kwazulu-Natal and some parts of the Eastern Cape Provinces.

It is proposed that it be listed as a category 1a invader under the National Environmental Management: Biodiversity Act (NEMBA).

Soil seed bank shows that Crotalaria agatiflora is a slow but persistent invader.

Its seed coat dormancy and ability to resprout makes it very persistent. The preliminary scientific data obtained from this study show that C. agatiflora poses a significant threat to the flora of South Africa and that it should be controlled.

This study supports the listing of this species as a category 1a invader especially in Gauteng where the number of recorded populations are increasing greatly.

For more information please see the fact sheets below:

Canary bird bush (Crotalaria agatiflora)

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Media

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