water spinach

noun4

1. •
   Ipomoea aquatica, a green leafy vegetable used as a food in several cuisines of East and Southeast Asia
2. •
   Basella alba, Malabar spinach, with thick, succulent, heart-shaped leaves
3. •
   Amaranthus dubius, often bearing red or purple marks
4. •
   Amaranthus tricolor, edible amaranth