1. Long cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves
   - pie plant [N. Amer], garden rhubarb, Rheum rhabarbarum, Rheum rhaponticum, rhubarb

Type of: rhubarb, rhubarb plant

• unfix
• unfixed
• unflagging
• unflaggingly
• unflappability
• unflappable
• unflattering
• unflavored
• unflavoured
• unflawed
• unfledged
• unflinching
• unflinchingly
• unfluctuating
• unflurried
• unflustered
• unfocused
• unfocussed
• unfold
• unfolding
• unforbearing
• unforced
• unforceful
• unforeseeable
• unforeseen