Sumack

A declaration of the places whence the goods ſubſcribed doe come. [...] Sumack, from Cyprus.

Source: wiktionary

The whole plant [windmannia] ſeems to have ſomething of the appearance of a Sumack.

Source: wiktionary

[B]y tanned hides or ſkins, or by tanned pieces of hides or ſkins, are meant only ſuch as are tanned in wooſe made of the bark of trees, or ſumack, or whereof the principal ingredients ſhall be ſuch bark, or ſumack; [...]

Source: wiktionary

Tannin or tannic acid is a vegetable principle produced from nut-galls, catechu, or cutch, or terra japonica, oak-bark, divi divi, or the pod of the corsalpin coriaria, valonia, or the cup of the acorn from the prickly oak, sumack, cork-tree bark, mimosa, or wattle bark, larch bark, and many other astringent vegetable substances. This vegetable principle is employed in tanning leather.

Source: wiktionary