Solved Popped up everywhere since autumn

Can anyone make some confident suggestions on what this is? So far suggestions have included,

• Euphobia
• Purple Toad Flax

It has popped up in borders, pots and the rockery. Including completely swamping a lavender plant and thyme plant.

 

Linaria purpurea?

 

Without seeing, and touching, I would say, Euphorbia mellifera, the leaves look identical, as does the uniform clump, as its one of the easiest to divide.

 

Looks like Euphorbia to me as well but a different variety than the one I have. If it is, the white sap is said to be damaging to skin when combined with light exposure.

 

Thanks for the swift replies all. Having searched specifically for "Euphorbia mellifera" and looked at a variety of images, it does look like that could be the devil. I shall have to keep an eye on how what's left develops in the spring.

I have absolutely no idea where it's come from, or how it has found it's way into such a wide variety of places. Hey ho.

Thanks again for the input.