Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rhubarb

2 senses of rhubarb

Sense 1
pieplant, rhubarb -- (long pinkish sour leafstalks usually eaten cooked and sweetened)
       => vegetable, veggie, veg -- (edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant)

Sense 2
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)
       => herb, herbaceous plant -- (a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests)