vegetable, veggie - edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

genus Rheum, Rheum - rhubarb

Himalayan rhubarb, red-veined pie plant, Rheum australe, Rheum emodi, Indian rhubarb - Asian herb (Himalayas)

garden rhubarb, pie plant, Rheum cultorum, Rheum rhabarbarum, Rheum rhaponticum - long-cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves

Chinese rhubarb, Rheum palmatum - long used for laxative properties