What is "carya glabra"

Pignut \Pig"nut\ (p[i^]g"n[u^]t), n. (Bot.)

1. See Groundnut (d) .

2. The bitter-flavored nut of a species of hickory ( Carya glabra syn. Carya porcina); also, the tree itself.

Hickory \Hick"o*ry\, n. [North American Indian pawcohiccora (Capt. J. Smith) a kind of milk or oily liquor pressed from pounded hickory nuts. ``Pohickory'' is named in a list of Virginia trees, in 1653, and this was finally shortened to ``hickory.'' --J. H. Trumbull.] (Bot.) An American tree of the genus Carya, of which there are several species. The shagbark is the Carya alba, and has a very rough bark; it affords the hickory nut of the markets. The pignut, or brown hickory, is the Carya glabra. The swamp hickory is Carya amara, having a nut whose shell is very thin and the kernel bitter. Hickory shad. (Zo["o]l.)

1. The mattowacca, or fall herring.

2. The gizzard shad.

Carya glabra, the pignut hickory, is a common, but not abundant species of hickory in the oak-hickory forest association in the Eastern United States and Canada. Other common names are pignut, sweet pignut, coast pignut hickory, smoothbark hickory, swamp hickory, and broom hickory. The pear-shaped nut ripens in September and October and is an important part of the diet of many wild animals. The wood is used for a variety of products, including fuel for home heating.