Mimosa microphylla, commonly called littleleaf sensitive-briar, eastern sensitive-briar, or little leaf mimosa,[1][2][3] is a species of flowering plant in the legume family (Fabaceae).

It is a perennial herb native[4] to North America, where it is found primarily in the southeastern United States.

[5][6] Its typical natural habitat is in dry woodlands and forests, although it can also be found in disturbed areas.

[5] Its leaves are sensitive to touch, and fold together immediately after being disturbed.

It produces round heads of purple flowers from June to September.