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Leaf Margins: Involute

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Blue Princess Meserve Holly
(Ilex x meserveae 'Blue Princess')



Leaf Margins: Involute

A leaf with margins that curl toward the top of the leaf along the margin edges.

Many of the Ilex species curl either upward or downward (revolute), helping in their identification.

Some plants that are trying to preserve moisture or heat roll their leaves in response to these stresses. The Rhododendron x 'PJM' is one of these plants. The leaves may have a slight revolute shape normally, but when stressed or cold the leaves can roll very tightly.

Botanical Terminology > Leaf Margins > Involute 


2005 Gary J. Kling and Laura L. Hayden, University of Illinois at Urbana-Champaign.
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Notes about this tutorial.