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Types of Orchids

Yellow Orchids with Red Speckles
Creative Commons License photo credit: unforth

Types of Orchids

If thereís one thing that should be said about orchids, it is itís the biggest flower family in the plant kingdom. The Orchidaceae family is composed of 30,000 distinct species. To keep them organized, scientists have grouped orchids in taxinomic units called “genera”. A generaís grouping is based on similar characteristics of the member orchids, like the natural habitat, the shape and form of the plant, leaves, blossoms, or some other similarity.

With over 30,000 species to classify, it is no wonder that even in the scientific community, standarization of the orchidsí classification system continues to be an ongoing issue. Among hobbyists, orchid growers, and the scientific community, the classification system developed by Robert Louis Dressler is currently the classification standard. Dresslerís classification has was initially listed in 1981 and was modified three times, one in 1986 and twice in 1990 (called 1990a and 1990b versions).

Orchids plants are classified according to their water requirements. Paphiopedilum, Cymbidium and Odontoglossum need a moist environment year round. Cattelya, Dendrobium and Oncidium only need water when they are actively growing. On the other hand, the vanda Ascocend does not need to be watered at all.

Cymbidum híbrida
Creative Commons License photo credit: r0sita are one of the most popular types of orchids, having 40 species that have caused the growth of thousands of hybrids.

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