Barb the silver-green colour of the leaves of the first main picture looks more like those of the left-hand side in your last 4th pic. Was it treated? it seems to be not mapped?
Barb, I came across those today after a long session of woody weed control; see Field Maps / Treated Weeds; it was getting dark and I ran out Glypho so these guys need to wait to next time - I hope to tackle them before they fruit.
The Monday crew decided to move on to tackle Cleavers where we worked last year - I therefore decided to continue woody weed control in that area on my own whenever I can squeeze in a few hours.