ISO amaranth greens
Anyone seen them lately?
There are 70 different species of amaranth, several of them are used for culinary purposes somewhere in the world. So we could be talking about one of several different related plants.
Jamaicans and Guyanese call amaranth greens calalloo (which can lead to confusion since other Caribbean islands use the same name to refer to the greens of other plants) I mention this because there's been a vendor at the Leslieville market on Sundays selling bunches of calalloo greens.