MeSH definition : A widely cultivated plant, native to Asia, having succulent, edible leaves eaten as
a vegetable. (From American Heritage Dictionary, 1982);
Related MeSH term : spinach;
MeSH annotation : as plant & food;; water spinach (Ipomoea aquatica): index IPOMOEA;
Wikipedia link : https://en.wikipedia.org/wiki/Spinach;