Origin: in Chico, Calif., by the Plant Introduction Sta., U.S. Dept. of Agriculture. Introd. for trial in 1962 as P.I. 150646. Male seedling of Pistacia vera selected from seed introd. under P.I. 73396 from Aleppo, Syria; probably of species hybrid origin; tested as Chico 23. Tree: prolific pollen producer; blooms early; suitable pollinator for Bronte, Red Aleppo, Trabonella; blooms too early for Kerman, Lassen, and other later-blooming varieties; Chico and Peters are effective for good overlapping of bloom of the early varieties. Fruit:
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