IPA: /vɜːrˈneɪʃən/
KK: /vɜrˈneɪʃən/
The way young leaves are arranged inside a bud before they open.
The vernation of the plant's leaves was fascinating to observe as they began to unfurl.
Vernation is formed from "vernus" (meaning spring) and "-ation" (a suffix used to form nouns indicating an action or process). The word refers to the process of unfolding or the state of being in spring, particularly in relation to plant growth.
Think of 'spring' ('vernus') as the time when plants start to unfold and grow, which is what vernation describes.