Curious what this is.....

got lots of this growing in my garden , seems somewhat invasive and I'm dying to know what it is....

 

It looks like Euphorbia

 

Agreed that it looks euphorbia-like. Take necessary precautions (handle with gloves) until confirmed.

 

I think longifolia

 

Linaria?

 

Thanks for the replies, what are the risks with euphorbia?

 

Caustic sap. Harsh on the skin, very harsh on eyes, etc.

 

Easy test for which it is.....Euphorbia v Linaria...Euphorbia has white sap. Snap a stem and check.
I also think it is Euphorbia sp.

 

The leaves are in distinct whorls along the stem, not right for Euphorbia or Linaria.
Maybe Galium?

 

Linum perenne, as a possibility.