Setaria verticillata
Ecology
An annual of rubbish tips, dock quaysides, verges and waste ground; also, rarely, as a weed of arable land or garden centres. S. verticillata is a bird-seed, oil-seed, wool, cotton and esparto alien, usually occurring as a casual but sometimes persisting for a few years in S. England. Lowland.
Status
Trends
S. verticillata was recorded from the wild in 1666. It is unclear whether its distribution is changing.
World Distribution
Native of Eurasia, but precise range obscured by its spread as a weed; it now grows in warm-temperate and subtropical areas of Eurasia, C. & S. America, Africa, Australia and elsewhere.
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JNCC Designations
Atlas text references
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1996. Alien grasses of the British Isles.
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1983. The biology of Canadian weeds. No. 59. Setaria glauca (L.) Beauv. and S. verticillata (L.) Beauv. Canadian Journal of Plant Science. 63:711-725.