A generic name for members of the mimosa genus of plants (most commonly mimosa sensitiva, and mimosa pudica) whose leaves, upon being touched or exposed to flame, retract closely against their stem, revealing thorns. After around an half hour, the leaves will return to their original position. They have a purple or pink flower.

This plant is tenacious with adequate water, it grows fast and spreads rapidly and few animals find it a palatable dinner. The seeds float, which encourages growth along rivers. Various species of this plant are found natively in tropical South America, however it has spread far around the world into Asia and Australia (and currently threatens rangelands in Australia as overgrazing is allowing this plant to spread without competition).

The beans of this plant are rumoured to be a source of tryptamines (specifically, DMT and 5-MeO-DMT). In their native South America, they are toasted, mixed with ashes and ground into a snuff and snorted into the nose.

references: www.seedman.com, http://www.greendealer-exotic-seeds.com, http://savanna.ntu.edu.au/, http://www.deoxy.org/trypfaq.htm

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