In my neck of the woods that would be Senecio vulgaris but you may have other similar looking candidates where you are.

Hi Blakrab

I always wonder what interesting thing you found this time ;-)

Senecio v was my first reaction as well

some of those veggie-plot-weeds are spread as stow aways in seed mixes or something similar.

If I remember correctly it is somewhat poisonous, but I know for sure that my dad taught me that this was fine for our Canary bird, and he was fine after eating it multiple times

I think it's a very glabrous Senecio vulgaris too.