* Preston, Christopher D., David A. Pearman and Allan R. Hall (2004) Archaeophytes in Britain "Botanical Journal of the Linnaean Society" 145: 257-294
==See also==*Introduced species*Invasive species*List of invasive species==References==* Preston, Christopher D., David A. Pearman and Allan R. Hall (2004) Archaeophytes in Britain "Botanical Journal of the Linnaean Society" 145: 257-294