GET THE POINT?

It's Mono Monday and the challenge is "Green....only in B&W."
~
This is a Golden Barrel Cactus...Kroenleinia grusonii.    It's native to Mexico and is endangered.  This one grows in "The Domes"....a horticultural display area in Mitchell Park, Milwaukee, Wisconsin USA.  It is all green except for the spines which are golden color...hence the name.
~
If you'd like to see what it looks like in color, check it out:  https://www.youtube.com/watch?v=Wc_AX9dNC_w
~
BEST IN LARGE.