Solved help with id please - Euphorbia lathyris

we've been filling in a pond and this plant has appeared and is growing energetically
we'd appreciate a name for it if you would be so kind
thank you
B

 

Euphorbia lathyris.

https://www.google.co.uk/search?q=Euphorbia lathyris.&rls=com.microsoft:en-US&source=lnms&tbm=isch&sa=X&ei=U21RU-ybLsTwOqmegIgE&ved=0CAYQ_AUoAQ&biw=1536&bih=703

Be careful the white latex sap is toxic.

http://www.euphorbia.de/giftstart_e.htm

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Yes that's it spot on. Many thanks

 

I bet you haven't got any moles

 

not that I know of - nice flat lawns! But why?

 

Its known as the mole plant, often thought to deter moles.
As you dont have any, its obviously working.

 

It took me several years to identify the cause of the wet, red blisters that would appear on my arms in summer, until I discovered it was due to (wild) euphorbia plants amongst the weeds I would grab armfuls of to chuck either on a compost heap or in a wheelbarrow.

My GP didn't have a clue (prescribed steroid cream), but I eventually discovered the cause on this forum. I don't suffer any more now I know how to avoid it.

 

So - hopefully no moles (of the animal kind) and no blisters - thank you all