Can anyone identify this plant please?

[juneau]

It's all over my garden (or it was until yesterday, when I waged war on it). It's really rampant though and I struggle to keep it at bay. It has a huge tangle of roots once it gets to about a foot high and I'd love to know what it is. The first pic shows the above ground bit. It always snaps off at the root when you try to pull it up. The second pic shows a smaller bit with roots attached.

The leaves look like anemone leaves to me. Does it flower?

Er - can't remember. Sorry, that's not very helpful. It spreads though - like wildfire - and not just to adjacent areas. It's all over my garden so it must seed - right?

ground elder?? I can't see the leaves properly, have a google

I think it's Ground Elder too

Yes, I think ground elder. If you keep snapping it off at roots regularly, it will eventually die back but it is a hard one to get rid of.

If you don't mind chemicals, spray with a strong weedkiller once leaves are growing, wait for that to take an effect and then keep pulling up any new growth. Cut off any really tough stems at soil level. Don't try and get all the root out, just keep pulling it up.
If it is in amongst plants you want to keep, just go for pulling up. Large areas without other plants will also weaken if you regularly mow or strim them.

There isn't a quick solution ( that I know of) just need to keep going at it.

Actually, looking again, I don't think it is ground elder. If it flowers it may be cranesbill. In any case, my advice will still help.

You have to keep on removing any green parts that can photosynthesise until it runs out of energy and gives up!

Right, so I'll keep waging war on it, whatever it is. I've googled ground elder, but the leaves are the wrong shape (reputation-wise it's similar though!).

I have a nasty feeling that this hippyish garden-designer I had might have put it in my garden. She put in all kinds of plants that I don't welcome. Having said 'no ivy, nothing with thorns, and nothing in the bramble family' she managed to add at least one of all the above so I wouldn't put this pest past her as well.

Could it be astrantia? Similar leaves and grows tallish, spreads.

If it flowers it may be cranesbill

The leaves look quite like a very rampant pink geranium which tries to take over part of my garden.

I think it might be Wood avens - Herb Bennet - Geum urbanum. I have this in the garden - it's a pernicious weed, has small yellow flowers and red whiskery seed heads. A pest to get rid of, I've waged war on it forever! I've been digging some out today, but unlikely to ever eradicate it all.

Another vote for geranium. I have a wild geranium in my garden that looks just like that, if you crush the leaves between your fingers are they scented?

I like mine - but it is a thug.

Definitely NOT ground elder, veins all wrong and leaf the wrong shape

Agree re wild geranium/ cranesbill

I would rather have geranium to ground elder. And this looks like a geranium to me.

Hopefully a little bit has escaped the OP's onslaught so she can report back when and if it flowers.