japanese leek(n = noun.plant) allium fistulosum, welsh onion - Asiatic onion with slender bulbs; used as early green onions;
is a kind of allium cepa, onion, onion plant

few-flowered leek, imperial japanese morning glory, japanese, japanese allspice, japanese andromeda, japanese angelica tree, japanese apricot, japanese archipelago, japanese banana, japanese barberry, japanese barnyard millet, japanese beech, japanese beetle, japanese bittersweet, japanese black pine, japanese brome, japanese capital, japanese carpet grass, japanese cedar, japanese cherry, japanese chess, japanese chestnut, japanese clover, japanese crab, japanese deer, japanese deity, japanese flowering cherry, japanese honeysuckle, japanese hop, japanese iris, japanese islands, japanese ivy, japanese lacquer tree, japanese lawn grass, japanese leaf, japanese lilac, japanese lime, japanese linden, japanese maple, japanese medlar, japanese millet, japanese monetary unit, japanese morning glory, japanese oak, japanese oyster, japanese pagoda tree, japanese persimmon, japanese pink, japanese plum, japanese poinsettia, japanese privet, japanese quince, japanese radish, japanese red army, japanese red pine, japanese rose, japanese snowbell, japanese spaniel, japanese spurge, japanese stranglehold, japanese sumac, japanese table pine, japanese tree lilac, japanese umbrella pine, japanese varnish tree, japanese wistaria, japanese yew, lady's leek, leek, meadow leek, rose leek, round-headed leek, sand leek, three-cornered leek, triquetrous leek, wild leek