- An upward bending of leaves or any other plant components, caused by development of the reduced part.
- an upward bending of leaves or other plant components, due to enhanced growth to their lower area
- Downward convexity, or convexity of this substandard area.
- In botany, increased development over the reduced surface of an organ or part of a plant, inducing the part to bend upward. Compare epinasty.