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They do turn (mostly) green when you coo them, but the kids still think they're super interesting, which is a win.
My gf grows these in our garden. They do turn green when cooked, they also turn the water you boil them in blue.
I read that as "lets you grow intestine things" and from the picture I didn't even doubt it
Look like flamingo heads in the thumbnail.
I had a few of those from the garden in a pan with green beans and I was quite surprised when I looked back and they were all green.
Beans!!
Chinese long beans?
Not sure what they actually are, but here's a seed link: https://www.superseeds.com/products/purple-pod-pole-bean-70-days-heirloom