fever tree

(noun) any of several trees having leaves or bark used to allay fever or thought to indicate regions free of fever. Synonyms: fever tree.

(noun) ornamental shrub or small tree of swampy areas in southwestern United States having large pink or white sepals and yielding Georgia bark for treating fever. Synonyms: fever tree, Georgia bark, bitter-bark, Pinckneya pubens.

(noun) tall fast-growing timber tree with leaves containing a medicinal oil; young leaves are bluish. Synonyms: blue gum, fever tree, Eucalyptus globulus.

(noun) African tree supposed to mark healthful regions. Synonyms: fever tree, Acacia xanthophloea.