present participle of rhubarb.

Darmera peltata, a slow-spreading rhizomatous perennial flowering plant native to mountain streamsides in woodland in the western United States.

Either of two docks (not true rhubarbs), Rumex alpinus (alpine dock) or Rumex patientia (patience dock).

Synonym of burdock

A plant, (Rheum rhaponticum), whose appearance is somewhat like rhubarb.

The plant Gunnera tinctoria and its edible stems, native to southern Chile

plural of giant rhubarb

A region of West Yorkshire, between Wakefield, Morley and Rothwell, famous for producing early forced rhubarb.

Japanese knotweed

plural of wild rhubarb