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Four Season Virtual Tree Trail

Station Twelve - American Sycamore - Platanus occidentalis

 

The American sycamore is capable of assuming truly massive proportions, unrivaled by any other broad-leaved tree in America.  Individual trees 140 feet in height, with trunk diameters of 14 feet have been recorded.  It ranges over much of the eastern United States but is absent from the higher elevations in the Appalachians.

 

Habitat:  Along rivers and streams, moist bottomlands.

 

 
Station Twelve
   
 
  American Sycamore Leaf

Identification:  The leaves are alternate, simple and 5 inches to 8 inches long, green and shiny above, whitish and hairy below.  Venation is palmate.  The base of the petiole completely encloses the bud. 

 

 

 

 

   
 
American Sycamore Bark

 

The bark of the American Sycamore is quite distinctive and beautiful in all seasons.  The bark is reddish-brown to gray when young, and thin and flaky.  As the outer bark flakes off, it exposes the white or greenish inner bark.   

 

The twigs of the American Sycamore are brown to orange-brown, smooth and shiny.  The stipule scar encloses the bud.

 

 

This species is monoecious, with both male and female flowers appearing in separate rounded clusters in the spring.

Other Uses and Lore: 

John James Audubon once wrote about observing thousands of chimney swifts descending into a huge hollow sycamore to use it as a roost.  He returned early the following morning to watch them exit.  The swifts came pouring out in a black continuous stream that lasted more than thirty minutes.  Many other species of wildlife use the cavities in these trees, including many mammals.  Eastern screech owls roost and nest quite often in the cavities of sycamores found along streams.  The seeds were a favorite of the now extinct Carolina parakeet. 

 The wood’s spiral grain makes it difficult to split, and it is quite tough.  It has been used for butcher’s blocks, cigar boxes, shipping crates.  It has also been used in musical instruments and panels for Pullman cars in passenger trains.

 

 The Stones River

Virginia Bluebell

While you're here, stop for a moment and take a look at the Stones River below Station Twelve.  Along the banks of the Stones you may find a patch of Virginia Bluebells.  These flowers are both beautiful and very fragrant.  Look for neotropical migrant birds in the brushy areas along the river.  Predators like the Cooper's Hawk sometimes fly down the river channel looking for prey.  From this point you will be retracing your steps to return to the trailhead.

 

   
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