Help garden interloper.

rjwickesnkMJ0Why

Evening all, 

Clearing out the garden for winter and come across this, any ideas, is it friendly or not.

Also seems to have thorny stem, 

We don't remember planting it.

Thanks if advance for any help

Silver surfer

Rodgersia????

rjwickesnkMJ0Why

Possible, was hoping not a horse chestnut

Posy

It looks more like a hellebore to me. What's it like at the base?

Fairygirl

I was wondering about Rodgersia, but there's no scale, which makes it difficult too. 

rjwickesnkMJ0Why

Some more pics to give some scale, smaller leaves closer to the base.

rjwickesnkMJ0Why

Silver surfer

Thanks for new pics....that rules out Rodgersia.
I am now leaning to Rubus sp...something related to blackberry.
Is it attempting to grow taller.

rjwickesnkMJ0Why

Checked out your previous answer, it looked similar to Rodgersia aesculifolia,

Blackberry has a very different shape of leaf. Didn't seem to have runners. 1 stem 1leaf.

Silver surfer

Definitely not Rodgersia.
I said related to Blackberry.
Rubus has many different sp...most I am not familiar with.
It seems to have long prickly stems.

https://www.google.com/search?q=rubus+palmate+leaves&client=firefox-b-d&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiai-O7_ZPsAhVNUMAKHdJtDa8Q_AUoAXoECBsQAw&biw=1280&bih=579#imgrc=A8FZq1DF6QbiqM

More info here....

https://en.wikipedia.org/wiki/Rubus

rjwickesnkMJ0Why

Stems I'd say are more hairy than prickley. We did have thornless blackberry's several years ago, 
Leaves where more like normal blackberries.

May be hoik it out into a pot and see what happens.