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  Illinois Trees  

Department of Natural Resources
 
      Illinois     
T R E E S
Tree Clues
 

Illustration used with permission from the National Arbor Day Foundation, Nebraska City, Nebraska

Use this section to gather clues about a specific deciduous tree and to identify the species in a field guide to the trees.

Tree Shape


round


oval


pyramidal

v-shaped

columnar

 

 

 

irregular

Branching Patterns

opposite, branches across from each other at the same level


alternate, branches on different levels
whorled,
three branches at same level
Bark color: texture: pattern: attachment:
  brown smooth diamond tight
  gray ridged horizontal loose
  black deep vertical  
  red-brown shallow    
  white      

Leaves (Deciduous: shedding leaves at the end of the growing season.)

attachment: simple, single blade
  compound, more than one blade
palmate, like a hand
pinnate, like a feather
bipinnate, two times like a feather

 

arrangement:

 

 

opposite

 

alternate

 

margins:

 

lobed

 

entire

 

toothed


  shape: triangular egg-shaped mitten-shaped round fan-shaped
    heart-shaped five-pointed star lance-shaped cross-shaped pear-shaped

Illinois Trees | Forest Facts | Species Description | Agency Resources | Illinois Flowering Trees

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