Is Hyponasty a Word?

noun Botany. increased growth along the lower surface of a plant or plant part, causing it to bend upward.

What is Hyponasty movement?

: a nastic movement in which a plant part is bent inward and upward.

What is difference between Hyponasty and Epinasty?

In context|botany|lang=en terms the difference between epinasty and hyponasty. is that epinasty is (botany) the downward curvature of leaves etc due to differential growth rates while hyponasty is (botany) an upward bending of leaves or other plant parts, caused by increased growth on their lower surface.