in botany, the popular name in the northeastern United States of the genus Gaylussacia, small branching shrubs resembling in habit the English bilberry (Vaccinium), to which it is closely allied, and bearing a similar fruit. The common huckleberry of the northern states is G. resinosa; while G. brachycera and G. dumosa are known respectively as box and dwarf huckleberry. The name Gaylussacia commemorates the famous French chemist Gay-Lussac.