Gunnera tinctoria

''Gunnera tinctoria'', known as giant rhubarb, Chilean rhubarb, or ''nalca'', is a flowering plant species native to southern Chile and neighboring zones in Argentina. It is unrelated to rhubarb, as the two plants belong to different orders, but looks similar from a distance and has similar culinary uses. It is a large-leaved perennial plant that grows to more than two metres tall. It has been introduced to many parts of the world as an ornamental plant. In some countries, such as New Zealand, the United Kingdom and Ireland, it has spread from gardens and is becoming an introduced species of concern. It is known under the synonyms: ''Gunnera chilensis'' Lam. and ''Gunnera scabra'' Ruiz & Pav.