"gntry" wrote

...Roundup does nothing to it,

When you say Roundup won't kill it, did you try cutting it off at an angle
to give lots of surface area, then painting straight Roundup on the wound
with a brush? Some plants have waxy leaves that chemicals have a hard time
clinging too, so you need a more direct application method. This is the
technique used by the local power company to eliminate weed trees that grow
under their lines.