Aeschynomene americana is a species of flowering plant in the family Fabaceae (legume) known by many common names, including shyleaf,[1] forage aeschynomene,[2] American joint vetch (United States and Australia), thornless mimosa (Sri Lanka), bastard sensitive plant (Jamaica), pega pega, pega ropa, antejuela, ronte, cujicillo, and dormilonga (Latin America).

The leaves are up to 7 centimeters long and have several pairs of linear to oblong leaflets.

[3] This species is widely used as a green manure or pasture plant throughout the tropical world.

[6] Cattle readily eat the plant and spread the seeds on their coats and in manure.

[3] In the wild it is generally a wetland plant, easily taking hold in wet places such as drainage ditches.