See quotations.
1833. We killed a grey bear, that was exceedingly fat. It had fattened on a nut of the shape and size of a bean, which grows on a tree resembling the pine, called by the Spanish, pinion.Narrative of James O. Pattie, p. 43 (Cincinnati).
1846. The burrs of the pine, which have fallen to the ground, are sometimes twelve inches in length, and contain a nut, (piñon,) which, although it is said to be nutritious, is not agreeable to the taste.Edwin Bryant, What I saw in California, p. 236 (N.Y.). (Italics in the original.)