think this is shamrock?

[jesssands]

and how the hell do you get rid of it? d**n stuff comes back as soon as its been removed.

[Bugloss2009]

it's an oxalis of some sort

[Robert_Brenchley]

You get rid of it with difficulty, as every tiny tuber will sprout. If you're desperate to be without it, I'd suggest black plastic over the whole area.

[jesssands]

thanks folks, its a nightmare.