JUGLANDACEAE - - Walnut Family

Juglans nigra Linnaeus — Black Walnut

Black Walnut (Juglans nigra) - Tree becoming 50 m. tall, the heart-wood dark-brown; leaflets 15—23, the blades 8—10 cm. long, rounded or subcordate at the base; staminate aments 5—10 cm. long; fruit 5—8 cm. in diameter; nut 4-celled below the middle, sculptured, the ridges thick, firm. A very valuable tree, both for nuts and wood.

Habitat:

Moist, nutrient-rich forests of floodplains and slopes, calcareous hammocks. The dark brown wood is famous for cabinetry and other uses; it is one of the most prized of North American hardwoods. The nuts, though difficult to crack, are prized for their intense flavor. The husk is used as a dye. Country people dehusk the nuts by putting them in dirt or gravel driveways where the passage of car tires removes the husk but does not crack the nut.

Habitat information from:
Weakley, Alan S., Flora of the Southern and Mid-Atlantic States, Working Draft of 21 May 2015.

The range of Juglans nigra (Black Walnut)

Kartesz, J.T., The Biota of North America Program (BONAP). 2015. North American Plant Atlas. (http://bonap.net/napa). Chapel Hill, N.C. [maps generated from Kartesz, J.T. 2015. Floristic Synthesis of North America, Version 1.0. Biota of North America Program (BONAP). (in press)].

The Georgia range of Juglans nigra (Black Walnut)

Zomlefer, W.B., J.R. Carter, & D.E. Giannasi. 2014 (and ongoing). The Atlas of Georgia Plants. University of Georgia Herbarium (Athens, Georgia) and Valdosta State University Herbarium (Valdosta, Georgia). Available at: http://www.georgiaherbaria.org/.