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Simaroubaceae - Tree-of-Heaven Family


Ailanthus altissima (Tree of Heaven/Ailanthus)
Picture
This is a fast-growing tree from 80 to 100 feet tall.  The diameter is 1 to 2 feet.  The leaves are very large and alternate, each having 11 to 41 leaflets, and are pinnately compound.  The leaflets are not toothed except for a pair or gland-tipped teeth near the base.  The leaf scars are very large and somewhat triangular with numerous bundle scars.

This is an invasive species from eastern Asia.  It was introduced as an ornamental tree.  The branch emits a foul odor when the branches are broken off.

This tree flowers from June to July.  It is common in dry soil.

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  • Home
  • Animals
    • Birds >
      • Avian Taxonomy
      • Bird Species Profiles
    • Mammal Species Profiles
    • Reptiles
    • Amphibians >
      • Frog and Toad Species Profiles
    • Fish
    • Arthropods >
      • Arthropod Species Profiles
  • Plants
    • Native Plant Societies
    • Eastern Plant Identification Guide
  • Fungi
    • Fungi Species Profiles
  • Protists
  • Nature Products Store
  • Cell Phone Ringtones
  • Madbird Feeder Cam
  • Ramblings of the Madbird Biologist
  • Bird Videos
  • News in Science
  • Nature Inspired Recipes
  • An Introduction to Scientific Classification and Naming
  • Birds in the Classroom
  • Resources
  • About Me