The Scalybark or southern Shagbark, C. Carolina septentrionalis, is reported only by Virginia, West Virginia and the Carolinas.
The White Hickory or Mockernut, C. alba, covers the South and is reported as far north as Pennsylvania, Ohio and Indiana and, rarely, in Michigan. It is found from the Atlantic coast to east Texas.
The widely distributed Bitternut, C. cordiformis, covers virtually the same territory as the shagbark.
The Sweet Pignut, C. glabra, is reported from New Hampshire to Wisconsin and southward to North Carolina. Its south-westward occurrence has not been defined in reports received.
In addition to these better-known species, the Water Hickory, C. aquatica, is reported from Louisiana, and the Black Hickory, C. buckleyi, from Indiana and Texas.
In an unusually full report Indiana lists all of sixteen hickory species and sub-species as appearing in The Flora of Indiana, a book by Mr. Charles Deam, former State Forester. The list follows.
1. C. pecan
2. C. cordiformis
3. C. ovata
3a. C. ovata, var, fraxinifolia