Juglans microcarpa Berl.

Juglans microcarpa Berl.. Juglans microcarpa, known also as the little walnut, Texas walnut, Texas black walnut or little black walnut, is a large shrub or small tree which grows wild along streams and ravines in Texas, New Mexico, Oklahoma, and Kansas, and the northernmost states of Mexico. It produces nuts with a width of 1/2—3/4 in. The pinnately compound leaves bear 7—25 untoothed to finely-toothed leaflets, each 1/4—1/2 in wide. It is found at elevations ranging from 700 ft to 6700 ft.