Senecios that look like brains or underwater corals
by Michal Ann Simenson
(Merced, CA, USA)
What are the senecios that look like something from the sea. They are succulents and are strangely beautiful.
I don't know of any Senecio that are like that, but your description fits many of the Euphorbia, such as some of t he brain Euphorbia and so on. You can see more of those here: Euphorbia - check out the submissions at the bottom of the page for more information and pictures.