Rumex acetosa 'Red Veined'

Help me identify this plant. I think it is sorrel? First year it hasn't been eaten straight away by snails.

Looks like a sorrel leaf, trina. I've got some dark red-veined ones in my garden and they're a bit of a nuisance. Self-seed everywhere. I pull them up where I don't need them but they're useful at the back of a border to fill a space.

@wend for some reason not much self seeds in my borders. Wish plants would lol.