Narrative

Juglandaceae Family is the sole family in the Juglandales Order. It contains many species of trees with very valuable wood. The hickory and walnut genus are both in this family.

Following is a list of the thirteen hickory species found in the United States (* those 7 discussed here):

*Carya alba (=tomentosa) - Mockernut - East USA
Carya aquatica - Water Hickory - South USA
Carya carolinae-septentionalis - Southern Shagbark - SE USA
*Carya cordiformis - Bitternut - East USA
Carya floridana - Scrub Hickory- SE USA
*Carya glabra (3 varieties) - Pignut - East USA
var. glabra (=microcarpa) - Small Fruited - East USA
var. megacarpa(=austrina)
var. hirsuta(=leiodermis)- Swamp Hickory - Louisiana
*Carya illinoinensis - Pecan - SC USA
*Carya lacinosa - Shellbark - Central USA
Carya myristiciformis - Nutmeg Hickory - Local S USA
*Carya ovalis - Sweet Pignut - East USA
*Carya ovata - Shagbark - East USA
Carya pallida - Sand Hickory - SE USA
Carya texana - Black - SC USA

Following is a list of the nine species of Walnuts found in the United States: ( * = those 5 discussed here):

*Juglans ailanthifolia - Japan - Introduced
Juglans californica - California - S. Calif.
*Juglans cinerea - Butternut - North USA
Juglans hindsii - Hinds Walnut - Local Calif.
Juglans jamaicensis - -
Juglans major - Arizona Walnut- SW US & Mex.
*Juglans microcarpa - Little Walnut - Texas
*Juglans nigra - Black Walnut - E. USA
*Juglans regia - English Walnut - Introduced

Taxonomy

References