- pieplant, rhubarb - long pinkish sour leafstalks usually eaten cooked and sweetened
--1 is a kind of vegetable, veggie
- rhubarb, rhubarb plant - plants having long green or reddish acidic leafstalks growing in basal clumps; stems (and only the stems) are edible when cooked; leaves are poisonous
--2 is a kind of herb, herbaceous plant
--2 is a member of Rheum, genus Rheum
--2 has particulars:Himalayan rhubarb, Indian rhubarb, red-veined pie plant, Rheum australe, Rheum emodi; pie plant, garden rhubarb, Rheum cultorum, Rheum rhabarbarum, Rheum rhaponticum; Chinese rhubarb, Rheum palmatum