[APWG] NEWS: 'Non-Invasive' Cultivar? Buyer Beware

[Olivia Kwong]

http://www.sciencedaily.com/releases/2011/10/111007073214.htm

'Non-Invasive' Cultivar? Buyer Beware

ScienceDaily (Oct. 11, 2011) -- Cultivars of popular ornamental woody 
plants that are being sold in the United States as non-invasive are 
probably anything but, according to an analysis by botanical researchers 
published in the October issue of BioScience. Tiffany M. Knight of 
Washington University in St. Louis, Missouri, and her coauthors at the 
Chicago Botanic Garden write that the claims of environmental safety are 
in most cases based on misleading demographic evidence that greatly 
underestimates the plants' invasive potential. What is more, the offspring 
of cultivars do not usually "breed true" and may be more fecund than their 
parents, especially if they cross with plants from nearby feral 
populations.

See the link above for the full article text.