sour gum is harder, it splits with difficulty, and is fitted for small work and implements, such as wagon-hubs and tool-handles.
It is called sorrel-tree, sour gum, and sour gum bush, on account of the acidity of the leaves when chewed.
This is the tree known as sour gum, more properly tupelo (Nyssa sylvatica or uniflora).
The enlarged base and the larger fruit serve to distinguish it from the sour gum.
"sour gum" refers to the acid, blue-black berries, one to three in a cluster, ripe in October.
The sour gum bears ovoid bluish-black sour drupes, or fruit containing single roughened seeds.