#rhubarb_plant__rhubarbplant__rhubarb  plants having long green or reddish acidic leafstalks growing in basal clumps; stems (and only the stems) are edible when cooked; leaves are poisonous
  supertype:  herbaceous_plant__herb  a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
  member of:  genus_Rheum
  subtype:  Himalayan_rhubarb__Indian_rhubarb__red-veined_pie_plant__Rheum_australe__Rheum_emodi  Asian herb (Himalayas)
  subtype:  pie_plant__pieplant__garden_rhubarb__Rheum_cultorum__Rheum_rhabarbarum__Rheum_rhaponticum  long-cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves
  subtype:  Chinese_rhubarb__Rheum_palmatum  long used for laxative properties

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