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Gunnera tinctoria #5 | by J.G. in S.F.
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Gunnera tinctoria #5

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Gunneraceae - Chile, Argentina

Chilean Rhubarb

Shown: The spiny undersurface of an unfolding new leaf; seen against the base of the equally spiny petiole of an enormous mature leaf (over 2m in length--including petiole--x 2m in width)

 

"Gunnera tinctoria, the Chilean rhubarb, is a plant species native to southern Chile and neighbour zones in Argentina. It is a large-leaved perennial plant that grows up to two metres tall. It is introduced in large parts of the world as an ornamental and edible plant. In some countries (for instance New Zealand) it has spread from gardens and is becoming a weed problem.

 

"Gunnera tinctoria is a giant, clump-forming herbaceous perennial. The leaves can grow up to 2.5m across. It has erect spikes of cone-shaped inflorescences (to 1m) from spring to early summer, with small flowers. The fruit is orange. The number of seeds is estimated from 80.000 per seedhead to 250.000 per plant." (Wikipedia)

 

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Photographed in San Francisco Botanical Garden - San Francisco, California

   

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Taken on April 13, 2009