Leaftypes of Native West Virginia Trees
Karen Posten
The following list of terms and examples will be helpful in
identifying various West Virginia trees according to leaf-type.
Alternate leaves arranged singly at intervals along the twigs
(ex: rhododendron, American beech, and black locust).
American Beech
Compound leaf leaf, with bud in axis, consists of more than one leaflet
(ex: buckeye, honeylocust, pignut hickory)
Pignut Hickory
Conifers A conebearing tree of the Pine family, usually
evergreen (ex: Virginia pine)
Virginia pine
Needles
- Scalelike needles Leaves of conifers that are short, pointed and often overlapping (ex: Eastern white pine)
- Needles not scalelike Leaves of conifers that are long and narrow (ex: eastern hemlock)
Lobed Edges Leaves that are wavy, turned under, or deeply
divided (ex: silver maple, yellow popular)
Deciduous Shedding leaves seasonally and leafless for part of
the year (ex: buckeye, American dogwood)
Flowering Dogwood
Opposite Leaves Either simple or compound type and occur in
opposing pairs along the twigs (ex: boxelder, buckeye)
Buckeye Leaves
Simple Leaf One leaf attaches to twig with bud in axis (ex:
post oak, sourwood)
Post Oak
Sourwood
Toothed Edges Leaves having edges finely divided into short,
toothlike projections (ex: black cherry, hawthorne)
Hawthorne
Whorled Leaves May occur where three or more leaves arise
together and their attachments encircle the twigs at intervals.
Palmately Compound Leaflets arise from the same point (ex:
buckeye)
Buckeye Leaf
Pinnately Compound Leaflets arise along the axis (ex: tree of
heaven, hickory, and black walnut)
Reference Materials
- Petrides, George A. Trees and Shrubs. Pederson Field Guides, Houghton Mifflin Co. Brooklyn, NY: 1986.
- Comstock, Anna Botsford. Handbook of Nature Study. Comstock Publishing Associates, Ithaca, N.Y.: 1939.
- Newcomb, Lawrence. Newcomb's Wildflower Guide. Little, Brown and Co. Boston: 1977.
- Little, Elbert L. The Audubon Society Field Guide to North America Trees Eastern Region. Alferd A. Knopf, New York: 1980.