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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

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Peanut butter cassia

Senna didymobotrya

Common name:

Peanut butter cassia

Scientific name:

Senna didymobotrya (Fabaceae)

Alternative common names:

Oatmeal cassia, popcorn senna, wild senna (English); grondboontjiebotterkassia (Afrikaans); munwahuku (Shona)

An evergreen, rounded shrub or small tree reaching up to 3m high. The young shoots are softly downy and 5cm long. Bright yellow flowers form in upright racemes. Green seed pods are downy, soft and flattened and turn dark brown. This senna has poisonous leaves.

Additional Info

  • Where does this species come from?

    Tropical Africa

    What is its invasive status in South Africa?

    CARA 2002 – Category 1 NEMBA – a. 1b in Eastern Cape, KwaZulu-Natal, Limpop, Mpumalanga and Western Cape. b. Not listed elsewhere.

    Where in South Africa is it a problem?

    KwaZulu-Natal, Mpumalanga, Limpopo and Eastern Cape

    How does it spread?

    Seeds

    Why is it a problem?

    Competes with indigenous species. Poisonous

    What does it look like?

    General description: A wide-spreading evergreen shrub to small tree growing up to 3m in height. Leaves: Dark green leaves with 8-21 pairs of leaflets in opposite pairs 2-5cm long. Flowers: Bright yellow flowers in upright racemes prevalent throughout the year. Fruit/seeds: Green pods turning dark brown that are softly downy and flattened

    Does the plant have any uses?

    Ornament, hedging

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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