- tolu tree, tolu balsam tree, Myroxylon balsamum, Myroxylon toluiferum - medium-sized tropical American tree yielding tolu balsam and a fragrant hard wood used for high-grade furniture and cabinetwork
--1 is a kind of tree
--1 is a member of Myroxylon, genus Myroxylon
--1 has substances: tolu, balsam of tolu, tolu balsam