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Four Season Virtual Tree Trail

Station One - Shagbark Hickory Carya ovata

 

With its shaggy smoke-gray bark, the shagbark hickory is one of the most easily recognizable trees of the eastern forests.  A member of the Walnut family, it may grow to a height of 120 feet or more, and its trunk may be 20 to 30 inches in diameter.  It is found over much of the eastern United Sates.  Older trees may be up to 200 years old.

Habitat:  Shagbark hickories appear in a wide variety of habitats, from bottomland hardwoods to upland slopes such as this one.

 

 
Approaching Station One
   
 
  Shagbark Hickory Leaf

Identification:  In fall the leaves of the Shagbark Hickory will turn a golden brown.  Each leaf is composed of 5-7 leaflets.  The leaves are alternate, toothed and pinnately compound.  The leaves are smooth to lightly hairy above, and hairy below.  Total length of the leaves vary from 8 inches to 16 inches.  With a hand lens you can see fine hairs along the margins of the leaves (margins are ciliate), a characteristic that distinguishes Shagbark Hickories from all other hickories.  As the tree loses its leaves, you may be able to get a better look at the alternate branching on this species.  Although Hickories and Ashes have leaves that are similar, Hickories have alternate branching while Ashes have opposite branching.   You will get a chance to see the opposite branching of the ashes at Station Two.

 

   
 
Shagbark Hickory Bark

True to its name, the bark of the Shagbark Hickory is broken into shaggy scales that are attached to each other by their edges.  On large trees these scales can be over a foot long and six to eight inches wide.  The scales start to form when the tree's diameter is from 4 to eight inches.  Lichen is often seen on the scales, and on older trees the scales can be large enough that small animals can find shelter beneath them.  Some species of bats have been observed doing this, and treefrogs are said to use them as well.

 

The twigs of the Shagbark Hickory are stout and dark reddish brown with orange lenticels.  The leaf scars are heart-shaped.

 

   
 
  Developing Nuts

In the fall you can often see the fruit of the Shagbark Hickory.  The nuts are greenish when young and brown to brown-black when mature.   The husks are thick and four-ribbed.    The mature nuts are around 2 inches in diameter.  The meat is light-brown, sweet and delicious, and has provided an important food source for both animals and humans.  In the 18th century, the naturalist William Bartram wrote that the Creek Indians pounded the nuts into pieces and boiled them, from which they extracted a sort of hickory “milk.”  He wrote that the milk, “is an ingredient in most of their cookery, especially homony and corn cakes.”  Later, pioneers cracked and ate the nuts. The nuts are also an important source of food for many types of wildlife, including gray squirrels and southern flying squirrels.  In the fall you may see a pile of broken shells (called a midden) beneath the tree, evidence that a wild creature has made a meal of the nuts.

 

Other Uses and Lore:  Hickory wood burns quite hot as firewood, and the fuel value of the wood is higher than any other American wood except locust.  The wood is also prized for smoking country hams and other meats.  General Andrew Jackson was nicknamed “Old Hickory” after one of his men said that he was “tough as hickory.”  Until a tornado destroyed them in 1998, six shagbark hickories stood as sentinels over Jackson’s grave at the Hermitage.

 

 

The Trail From Station One to Station Two

Eastern Redbud Fall Foliage

From Station One, the trail continues to climb towards the northwest until you crest the ridge.  At this point the trail splits, and you will want to take the left fork.   Up to this point you have been walking along an east-facing slope.  After you take the left fork you will be walking along a west-facing slope.  From this point the trail will slowly descend along the side of the ridge to the West Fork of the Stones River.   Immediately after you take the left-hand fork in the trail, you will be approaching Station Two.  It will be on the left side of the trail.

 

 

   
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