A plant that goes dormant in winter and begins growth in spring from above-ground stems.

The aging process. Also used to describe a plant that is in the process of going dormant for the season, although technically only the parts that are dying (the leaves) are becoming senescent.

In a state or period of inactivity or dormancy.

The dropping of leaves, flowers, or fruit by a plant. Can result from natural growth processes or from external factors such as temperature causing dormancy or chemicals.

Specialized cells, usually at the base of a leaf stalk or fruit stem, that trigger both the separation of the leaf or fruit and the development of scar tissue to protect the plant.