The Origins, Dispersal and Characteristics of Weeds

  • R. J. Stephens


The existing weed flora in any region is an amalgamation of indigenous species with introduced ones, although a clear distinction between the two cannot always be established because the origin of some weeds remains obscure. The provenance, for example, of Procumbent Yellow-sorrel (Oxalis corniculata), a weed of gardens and lawns in warmer regions, has yet to be definitely established, although it may have originated in the Pacific and spread to Europe by way of the Americas (Baker, 1972).


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Further Reading

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  4. KING, L. J. (1966). Weeds of the World: Biology and Control, Leonard Hill, London, p. 526Google Scholar
  5. McNEIL, J. (1976). Taxonomy and evolution of weeds, Weed Res., 16, 399–413CrossRefGoogle Scholar
  6. STIRTON, C. H. (1978). Plant Invaders — Beautiful but Dangerous, Dept. of Nature and Environmental Conservation of the Cape Provincial Administration, Cape Town, p. 175 (includes drawings and coloured photographs of 26 alien weeds of South Africa)Google Scholar

Copyright information

© R. J. Stephens 1982

Authors and Affiliations

  • R. J. Stephens
    • 1
  1. 1.School of Biological SciencesUniversity of BathUK

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