"..... I agree - the photos are a little indistinct (something to measure
scale against would be helpful), but the weeds in question look very much
like the young growth shoots of Japanese knotweed, Polygonum cuspidatum. A
tough weed
to control, but control you must - it is on many states' noxious weed
listing. Lots of info online with a Google search.

pam - gardengal ........."

Those were my thoughts as well.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk