Tendril

A curling tendril

A rotating or twisting thread-like process or extension by which a plant grasps an object and clings to it for support; morphologically it may be stem or leaf.^CH

Gallery

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  Nepenthes rafflesiana upper pitcher with coiled tendril
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  Spiky Plant Tendril
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  Virginia creeper adhesive Tendril

This article contains a definition from the Glossary of Gardening Terms.