Gunnera tinctoria. Leaf.
Gunnera tinctoria, the Chilean rhubarb, is a plant species native to southern Chile and neighbour zones in Argentina. It is essentially unrelated to rhubarb, as the two plants belong into different orders, but looks similar from a distance and has similar culinary uses. It is a large-leaved perennial plant that grows up to two metres tall. It has been introduced to many parts of the world as an ornamental and edible plant. In some countries (for instance New Zealand and Ireland) it has spread from gardens and is becoming a weed problem