Evergreen

An additional special case exists in an African plant that produces only two leaves, which grow continuously throughout the plant's life but gradually wear away at the apex, giving 20–40 years' persistence of leaf
Leaf persistence in evergreen plants varies from a few months (with new leaves constantly being grown as old ones are shed) to several decades (over thirty years in the).
In, an evergreen plant is a plant that has in all seasons. This contrasts with plants, which completely lose their during the winter or dry season.
There are many different kinds of evergreen plants, both trees and shrubs. Evergreens include:

• most species of (e.g., , and

• , and "ancient" such as

• most from frost-free climates, such as and trees.