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Scientific name:Ageratina riparia (Asteraceae)
Alternative common names:
Creeping crofton weed
The mistflower grows up to 1m high with weak, purplish stems. It has dark green, non-aromatic leaves 8-30mm wide. White flowers in terminal clusters appear from August to December. It invades stream banks, roadsides and plantations.
Where does this species come from?Mexico
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 and Gauteng
How does it spread?Seed dispersal
Why is it a problem?Competes with indigenous species
What does it look like?General description: The mistflower grows up to 1m high with weak, purplish stems. Leaves: Dark green, 8-30mm wide leaves. Flowers: White flowers in terminal clusters, from December to August. Fruit/seeds: Dry, hard fruit, 2mm long.
Does the plant have any uses?Planted as an ornamental.