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Tree of Heaven - Fact Sheet

Family: Simaroubaceae – Quassia family
Latin name: Ailanthus altissima
Common name: Tree of Heaven

Ailanthus altissima - winter habitAilanthus altissima - summer habit Ailanthus altissima - location at Morton Arboretum  Tree habit in winter and summer. Photo was taken at Morton Arboretum. Tree has been cut down.

Ailanthus altissima Winterbranches - tree of heavenTree of Heaven - leaves pinnately compound - looking at leaves from below Ailanthus altissima  Picture looking up into the branches of Ailanthus altissima in winter and summer. This is the tree that is shown above. 

Ailanthus altissima - end of branch showing leaf scar and bundle scars  Ailanthus altissima - end of branch showing leaf scar and bundle scars 

Ailanthus altissima - multiple trees close together in Naperville  This row of mature trees was located in Naperville, Illinois just west of the parking garage on Benton. Houses and trees on these lots were demolished in the fall of 2007. These trees may have produced the seeds that resulted in the trees below. This property was cleared in the summer/fall 2009 and parking garage was extended. 

Ailanthus altissima - leaf and bundle scars closeupTree of Heaven - end of stem Picture on left shows leaf scar on a young Tree of Heaven near the Naperville post office.  Picture on right is the end of the end of a leaf. 

Tree of Heaven flowersTree of Heaven - spent flowers  Tree of Heaven flowers 

Tree of Heaven - leaves pinnately compound - this one is 32 inches long  The Tree of Heaven has very long compound leaves. This is just one leaf with 28 leaflets. The entire leaf is about 31 inches long. 

Tree of Heaven - leaves pinnately compound - basal lobes with glandsTree of Heaven - leaves pinnately compound - basal lobes with glands - close up picture  Closeup of leaflets from Ailanthus altissima. Note the glands near the tips of lower lobes 

Tree of Heaven - closeup of dried fruitTree of Heaven - tree covered with large clusters of fruit Tree of Heaven - closeup of clusters of fruit  Fruit on Ailanthus altissima. These photographs are of a tree that is near the Art League building along the Riverwalk in Naperville, Illinois. All pictures were taken at the same time, but the dried ones were on a broken branch that was on the ground. 

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Karren Wcisel © copyright 2002-2005

Send email to Karrenw@aol.com

Please ask for permission before using my photographs. Larger sizes and additional photographs of the tree are often available.

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