| Forest plants and trees |
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| Plants in medicine |
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| Cures from around the world |
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People have been using plants to make medicines for thousands of
years.
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Modern scientists still use plants to make medicines.
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Some medicines can cure very serious illnesses.
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Many plants for new medicines are found in rainforests.
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Unfortunately, forests are destroyed so fast that some plants
might disappear before they have been discovered.
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Many people wish that the forests could be better protected.
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| Madagascar - rosy periwinkle |
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This plant grows in the rainforest. All parts of the plant are
used.
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The rosy periwinkle is used to treat a serious fever that can
kill.
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It is also used to treat a disease of the blood which some
children have.
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Nigeria and West Africa - bitter kola
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| The seed is inside the fruit. |
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The tree grows up to 30 metres tall in warm, damp rain forests.
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These are the leaves and fruit of the bitter kola tree.
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The seeds can be used to treat sore throats.
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Recently they have been used to treat very dangerous fevers.
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North East India - serpentine root
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It grows in forest clearings. The roots and leaves are used.
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This plant is used to treat pains in the bones.
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It is also used to treat a person who is anxious and nervous.
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North America, Europe, Asia - willow
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Its favourite habitat is near rivers and streams.
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| The bark from the trunk is used. |
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The bark is used to make tablets.
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Some people with heart disease take one tablet a day.
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This helps their hearts to work well and to keep their blood
flowing normally.
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| South America - Cinchona tree |
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It grows on slopes of the Andes mountains in th Amazon rainforest.
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It has white, pink or yellow flowers.
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The wood of this tree and bark from the trunk are used to treat
fever and pain, to calm nervous people and to kill germs.
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| Europe, Asia - poppy |
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This plant is grown in large fields.
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Poppies are grown to make a very strong painkiller.
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Immediately after an operation, patients are given this painkiller
to help them feel better and to get stronger.
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| The life cycle of a plant |
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| The seed lies on the earth. |
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The seed cracks open. Tiny shoots appear.
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On shoot grows up to the light. One shoot goes down.
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The first leaves appear. The roots grow.
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The stem grows longer and stronger.
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A bud begins to grow on the stem.
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The petals unfold and the flower opens.
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The seeds form in the flower. The flower dies.
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The seeds drop down onto the earth.
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| Listen 5 times |
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