Origin: at the U.S. Plant Introduction Sta., Chico, Calif., by the New Crops Res. Branch, Agr. Res. Service, U.S. Dept. of Agriculture, Beltsville, Md. Introd. for trial in 1957; as P.I. 121776. Open-pollinated seedling of P.I. 86372 from Rafsinjan, Iran; Pistacia vera; selected in 1936. Nut: above average in size; shells split well, easily opened by hand; kernels commercially acceptable, size above average; shaken or knocked from tree readily when ripe. Medium-late maturity. Tree: vigorous; spreading; blooms late; produces heavy crops. The primary U.S. cultivar. Fruit:
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