Posted: 16/04/2016 at 20:28
Not pyracantha - leaves wrong, description of growth and roots wrong. Pyracantha is a woody shrub with tree-like roots and glossy simple leaves.
Looks like ground elder to me as well.
As Bob says, if treating with glyphosate you must wait for the weed to die and turn brown before pulling/digging it up. Only then will the poison have reached the roots.