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Orchids - facts about plants and flowers

Orchids are a large group of plants that grow chiefly in tropical areas. Orchids are all perennial herbs. Kinds that live in temperate regions grow in the normal manner with their roots in the soil. But several tropical species grow as epiphytes on the trunks and branches of trees. Their roots are especially adapted to absorb water directly from the humid atmosphere, but they do not take any food from the trees on which they grow.

Facts about plants and flowers: The orchids in a picture are Orchis morio (left), Ophrys sphgodes (center) and Cypripedium calceolus (right)

Facts about plants and flowers: the orchids in a picture are Orchis morio (left), Ophrys sphgodes (center) and Cypripedium calceolus (right)

Orchid flowers vary enormously in size, shape and color. Many forms resemble certain insects - perhaps to lure insects to pollinate their flowers. Their colors range from white through greens and browns to dark purplish-reds, and their size from less than half an inch to eight inches across.

Some orchids bear their pollen in two gluey bundles that stick to the heads of insects searching for nectar. They are thrust intact onto the stigma of the next orchid the insect visits.

Orchids are popular flowers and are grown commercially for sale at florists. One species is grown to provide natural vanilla flavoring. Many orchids grow wild either on the ground or from the trunks and branches of trees. But gardeners also grow many varieties. More interesting facts about plants and flowers orchids you can find here

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