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 Botanical Terminology Tutorial
Leaf Arrangement
Leaf Shape
Leaf Margin
Leaf Apex
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Leaf Arrangement: Whorled
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Click on the name for detailed information on the plant.

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Illustration of Whorled Arrangement
Southern Catalpa
(Catalpa bignonioides)
More difficult: On closer inspection these following examples are alternate, but at first glance these are often described as having a whorled appearance.
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Japanese Pachysandra
(Pachysandra terminalis)
Japanese pieris
(Pieris japonica)




Def: Three or more leaves arising from a single node.

This is one of the more difficult leaf arrangements to identify. Many plants are listed as having a whorled appearance, but the leaves may actually alternate up the stem in a tight spiral. See Arrangement Along Stem under Arrangement: Opposite.

Note: In Central Illinois Catalpa bignonioides is our example of whorled arrangement.










Botanical Terminology > Leaf Arrangement > Whorled  


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