Definition of Grass tree

• elegant tree having either a single trunk or a branching trunk each with terminal clusters of long narrow leaves and large panicles of fragrant white, yellow or red flowers; New Zealand
• any of several Australian evergreen perennials having short thick woody stems crowned by a tuft of grasslike foliage and yielding acaroid resins
• gaunt Tasmanian evergreen shrubby tree with slender tapering leaves 3 to 5 feet long