sessile leaf

plant anatomy

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July 13, 2026

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A sessile leaf is one that is attached directly by its base, without a stalk or peduncle. This is in contrast to a petiolate leaf, which has a leaf stalk (called a petiole or stipe in ferns) connecting the blade to the stem. Many plants, including some ferns, have sessile leaves. This term describes a plant part that is permanently attached and not free to move.12

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angiosperm
Leaves
…directly to the stem (sessile), and others lack stipules (exstipulate). In compound leaves, a blade has two or more subunits called leaflets: in palmately compound leaves, the leaflets radiate from a single point at the distal end of the petiole; in pinnately compound leaves, a row of leaflets forms…
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…directly to the stem (sessile), and others lack stipules (exstipulate). In compound leaves, a blade has two or more subunits called leaflets: in palmately compound leaves, the leaflets radiate from a single point at the distal end of the petiole; in pinnately compound leaves, a row of leaflets forms…
Read More