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tillandsia
''Tillandsia'' is a genus of around 730 species of evergreen, perennial flowering plants in the family Bromeliaceae, native to the forests, mountains and deserts of Central and South America, the southern United States and the West Indies. ''Tillandsia'' species are epiphytes (also called aerophytes or ''air plants'') – i.e. they normally grow without soil while attached to other plants. Generally, the thinner-leafed varieties grow in rainy areas and the thick-leafed varieties in areas more subject to drought. Moisture and nutrients are gathered from the air (dust, decaying leaves and insect matter) through structures on the leaves called trichomes.
==Description==
''Tillandsia'' are epiphytes and need no soil because water and nutrients are absorbed through the leaves. The roots are mainly used as anchors. Propagation is by seeds or by offsets called "pups". A single plant could yield up to a dozen pups. Offsets can be separated when about 2/3 the size of their mother to encourage a new colony.
Although not normally cultivated for their flowers, some ''Tillandsia'' will bloom on a regular basis. However, while some may exhibit a spectacular inflorescence, most flowers are generally small. Some species flowers may change color through the blooming cycle. Some species or varieties produce fragrant flowers. In addition, it is quite common for some species to take on a different leaf color (usually changing from green to red), called "blushing", when about to flower. This is an indication that the plant is monocarpic (flowers once before dying) but offsets around the flowering plant will continue to thrive.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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