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Arbre extraordinaire

  Ginkgo   Biloba

A living fossil

              The ginkgo is the world's oldest living species of tree.It is the only survivor of a family that existed more than 200 million years ago and kept company to the dinosaurs.

It survived the crisis which exterminated them. However Ginkgo trees eventually vanished in most regions.

   They were, in fact, thought to be extinct until rediscovered in the 17th century in eastern China. The buddhist monks venerated them, that's why they still exist.

   The oldest European Ginkgo would have been sown in 1730 in Utrecht National Garden.

Description

          Ginkgo Biloba trees are dioecious ( male and female trees ). They grow up to 40m and can have a long life span 1,000 or older.  The oldest tree is about 3,500 years old.

This Ginkgo is 2,500 years old ( China )

These trees can't be classified, they are neither coniferous nor leafy. They have atypical leaves looking in no way like anything else.

    The leaves  

              They are fan-shaped with a split in the middle, hence two-lobed . ( biloba comes from bi - lobed )

In spring the leaves are light-green

   but will suddenly turn a pure dazzling yellow in Autumn

      The fruit

                 The seed has the size and the appearance of a small apricot when mature.

What makes the Ginkgo tree so special ?

        It has incredible physical qualities

                 This tree is particularly resistant to insect pests and fungal, viral or bacterial diseases.

                 It's also resistant to fire and radioactive radiations. Ginkgoes that were in the worst of Hiroshima bomb are still alive.

               This Ginkgo is situated 1100m away from the blast center. When he rebuilt the destroyed temple which was there the architect divided the stairs to protect the tree.

                Ginkgoes tolerate urban pollution as well so they                         

                are commonly planted to line streets. 

         Medical uses

                   An extract is prepared from the dried green leaves. Worwilde millions use this extract for better health. It increases blood circulation to the entire body especially the brain. It increases memory and functions that diminish as we age.

         Ginkgo does appear to be  a fountain of youth

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1. Ginkgo, according to the fossil record, appeared as a species a million year agofifty million years ago200 million years agoJe ne sais pas

2. In history Ginkgo is native of eastern ChinaEthiopiaAustraliaJe ne sais pas

3. The oldest European Ginkgo is 277771277Je ne sais pas years old.

4. A close Ginkgo relative is tamarixlarchhas no close relativeJe ne sais pas

5. Ginkgo leaf extract is said to aid memoryimprove sightcure cancerJe ne sais pas

6. The Ginkgo tree is dioecious, it means that there are male and female treesit loses its leaves every yearit lives for a very long timeJe ne sais pas

7. They are often planted to line streets because they provide shade in summerthey have a splendid colour in Autumnthey tolerate pollutionJe ne sais pas

8. According to the text and photographies do you think that a Ginkgo grows up very fastfastslowlyJe ne sais pas