A productive, high-quality cultivar of Carya illinoinensis. Origin: controlled cross (Cheyenne × Sioux) made in Brownwood, Tex., by E.J. Brown and G.D. Madden in 1974. Tested as 74-5-55 by T.E. Thompson and L.J. Grauke and cooperatively released by USDA–ARS and the Texas Agr. Expt. Sta., 18 July 2000. Nut: oblong with acute apex, and an acuminate (pointed) base; round in cross section; 44 nuts/lb, 56% kernel; kernels cream to golden in color, with shallow dorsal grooves and a rounded dorsal ridge. Tree: vigorous, beginning spring growth with Desirable and developing dense canopies of large leaves, on limbs with wide angles. Protogynous, with midseason pollen shed and early to midseason receptivity. Moderately resistant to scab, being more resistant than Desirable and less resistant than Stuart. Moderately susceptible to yellow and black aphids, being more susceptible than Pawnee, but less susceptible than Stuart. Medium precocity (comparable to Pawnee). Nuts average 3 per cluster, ripen 11–21 Oct. in College Station, Tex., ≈8 days before Desirable and 12 days before Stuart. Nacono bears well, outyielding Pawnee and Desirable through the tenth leaf in College Station. Nacono rarely overbears, having 56% terminals with clusters in a high production year, comparable to the 52% of the consistently producing Desirable. Fruit:
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