Synonyms for Australian Grass Tree (same or very similar meaning)
WordNet sense 1 (any of several Australian evergreen perennials having short thick woody stems crowned by a tuft of grasslike foliage and yielding acaroid resins):
grass treeWordNet sense 2 (stout Australian shrub with narrow leaves crowded at ends of branches and terminal clusters of white or pink flowers):
Richea dracophyllaFrom the ODE community, based on WordNetadd/edit