Anyone know what this is?

Anyone have any idea what this is? It's growing in an American friend's garden, but may also grow here. The leaf looks familiar, but I can't place it. It's pretty invasive. Wood anemone maybe?

Thanks.

 

Hi lorry, it could be some kind of geranium maybe?

 

I believe you may be right, Blackthorn. Looks like it's a wild geranium. Thanks.

 

OK, my friend reckons it isn't a wild geranium. She says, "I have some wild geraniums and they aren't invasive like these. They're shorter, too. These things are 12 to 18 inches tall. They split at ground level into 3 or 4 leaves on long stalks with a single flower stalk in the center. They break off easily at the roots and spread via roots and seeds. The flowers last about 3-4 weeks. The leaves stay healthy looking right up until the first hard frost in autumn."

 

In that case it is more likely to be an anemone nemorosa, see here http://images.google.co.uk/images?h...=image_result_group&ct=title&resnum=878899809

What threw me is that it is normally a spring flowering plant.

 

Hmm... I thought it might be a wood anemone, but it has 5 petals, not six. This is growing in Maine, so spring is later there.

 

Some of the anemonies have 5 petals, like the A. deltoidea and then there is False Rue Anemone http://www.illinoiswildflowers.info/woodland/plants/fs_anemone.htm

Otherwise, don't know.

 

Thanks for your help anyway, Blackthorn.

 

It turns out this was Anemone Canadensis.

 

Well there you go. We were right with it being an anemone of some sort :gnthb: :D