Aiphanes argos grows as a small palm and is a rheophyte. The pinnae are very long and thin, an adaptation to its environment. Similarly, the stem is flexible and thin.
Distribution and habitat
Aiphanes argos is endemic to Colombia, where it is confined to the canyon of the Samaná [Norte River] and the river's tributary streams, in Antioquia. Its habitat is on the banks of the canyon or tributaries, at elevations of. At high water on the river, the plant may be entirely submerged.