It's chances are not good.
If it is still alive, get hold of the leaves of any of these plants and see if it will eat them:
plantain, shepherd's purse, blackberry, raspberry or strawberry. It may be too late or too severe, but it might be worth a try.
http://en.wikipedia.org/wiki/Plantago
http://www.agf.gov.bc.ca/cropprot/weedguid/shepherd.htm
If it is still alive, get hold of the leaves of any of these plants and see if it will eat them:
plantain, shepherd's purse, blackberry, raspberry or strawberry. It may be too late or too severe, but it might be worth a try.
http://en.wikipedia.org/wiki/Plantago
http://www.agf.gov.bc.ca/cropprot/weedguid/shepherd.htm