The genus Mimosa comprises approximately 600 species of herbs and shrubs belonging to the mimosoid clade of the legume family, Fabaceae. These plants are native to a wide geographic range, spanning the Americas from North Dakota to northern Argentina, parts of eastern Africa including Tanzania, Mozambique, and Madagascar, as well as the Indian subcontinent and Indochina. The generic name originates from the Greek word mimos, meaning 'actor' or 'mime', combined with the feminine suffix -osa, meaning 'resembling', which alludes to the plants' sensitive leaves that appear to mimic conscious life.\n\nAmong the genus, two species are particularly well-known. Mimosa pudica, commonly referred to as the touch-me-not, is famous for folding its leaves when touched or exposed to heat. While native to southern Central and South America, it is widely cultivated globally as a houseplant in temperate regions and outdoors in the tropics, where it has occasionally become an invasive weed, such as in Hawaii. Another notable species is Mimosa tenuiflora, which is recognized for its use in shamanic ayahuasca brews due to the presence of the psychedelic compound dimethyltryptamine in its root bark.
