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Mimosa

Genus of flowering plants

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Mimosa flowers Chittagong University Bangladesh (note: this is Mimosa pudica )
This work was made by Nafiur Rahman and released under the license(s) stated below. Please feel free to use it for any purpose as long as you credit Nafiur Rahm · CC BY-SA 4.0

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Two species in the genus are especially notable. One is Mimosa pudica, commonly known as touch-me-not, which folds its leaves when touched or exposed to heat. It is native to southern Central and South America but is widely cultivated elsewhere for its curiosity value, both as a houseplant in temperate areas, and outdoors in the tropics. Outdoor cultivation has led to weedy invasion in some areas, notably Hawaii. The other is Mimosa tenuiflora, which is best known for its use in shamanic ayahuasca brews due to the psychedelic drug dimethyltryptamine found in its root bark.

Taxonomy

The taxonomy of the genus Mimosa has gone through several periods of splitting and lumping, ultimately accumulating over 3,000 names, many of which have either been synonymized under other species or transferred to other genera. In part due to these changing circumscriptions, the name "Mimosa" has also been applied to several other related species with similar pinnate or bipinnate leaves, but are now classified in other genera. The most common examples of this are Albizia julibrissin (Persian silk tree) and Acacia dealbata (wattle).

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