Wiktionary
basil balm
n. 1 A perennial herb, (taxlink Monarda clinopodia species noshow=1), found in eastern North America, which has aromatic foliage and white- or yellowish- pink flowers. 2 A fragrant European mint, (taxlink Clinopodium acinos species noshow=1), which has also been naturalised in eastern North America.
WordNet
basil balm
n. perennial herb of North America (New York to Illinois and mountains of Alaska) having aromatic leaves and clusters of yellowish-pink balls [syn: Monarda clinopodia]
fragrant European mint having clusters of small violet-and-white flowers; naturalized especially in eastern North America [syn: basil thyme, mother of thyme, Acinos arvensis, Satureja acinos]