The sunflower - Helianthus annuus - is a living annual plant in the family Asteraceae, with a large flower head. The stem of the flower can grow up to 3 metres tall, with a flower head that can be 30 cm wide. Sunflower oil, extracted from the seeds, is used for cooking, margarine and biodiesel. The Retezat Mountains are one of the highest massifs in Romania, being part of the Southern Carpathians. Containing more than 60 peaks over 2,300 metres and over 100 crystal clear deep glacier lakes, the Retezat Mountains are some of the most beautiful in the Carpathians. In 1979 the Man and Biosphere Program of UNESCO included the park in the international network of biosphere reserve. Romania, Europe.
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