Orchid flower "There are around 800 genera of orchids. The following are amongst the most notable genera of the orchid family. Orchidaceae are cosmopolitan, occurring in almost every habitat apart from glaciers. The world's richest diversity of orchid genera and species is found in the tropics, but they are also found above the Arctic Circle, in southern Patagonia, and two species of Nematoceras on Macquarie Island at 54° south. Orchids are easily distinguished from other plants, as they share some very evident derived characteristics or synapomorphies."
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