simple leaf
simple leaf — noun
1. A leaf whose blade is a single continuous piece — it may have cuts or deep notch
A leaf whose blade is a single continuous piece — it may have cuts or deep notches along the edge but is not separated into smaller leaf-like parts called leaflets, unlike a compound leaf.
In biology class, Trang examined a maple leaf as a simple leaf with deep lobes.
contrast with compound leaf
The oak tree in the park produces simple leaves with a wavy, easy-to-recognise edge.
Ishaan showed the class how a simple leaf attaches to the stem by a stalk called the petiole.
Unlike a rose bush with compound leaves, a cherry tree grows simple leaves along its branches.
Collecting leaves for her project, Sofie noted that birch trees have small simple leaves with jagged edges.
- undivided leaf
less formal description; 'simple leaf' is the standard botanical term
- compound leaf
a leaf whose blade is split into separate leaflets (e.g. rose, ash, clover)
用法筆記
In botanical descriptions, the opposite of a simple leaf is a compound leaf, where the blade is divided into separate leaflets. A lobed leaf (e.g. oak, maple) is still a simple leaf as long as the gaps do not reach the central vein.