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 Botanical Terminology Tutorial
Leaf Arrangement
Venation
Leaf Shape
Leaf Margin
Leaf Apex
Leaf Base
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Leaf Bases: Truncate
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Purpleblow Maple
(Acer truncatum)

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Common Lilac
(Syringa vulgaris)

Note: The Eastern Cottonwood leaf base shown here is slightly acute as well.
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Eastern Cottonwood
(Populus deltoides)
 

 

 

Truncate Leaf Base

Leaf base is perpendicular to leaf petiole and relatively straight across. Truncate can also refer to a similar leaf apex.

Botanical Terminology > Leaf Bases > Truncate  

 

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