1. (noun)umbrella tree, Schefflera actinophylla, Brassaia actinophylla erect evergreen shrub or small tree of Australia and northern New Guinea having palmately compound leaves
2. (noun)umbrella tree, umbrella magnolia, elkwood, elk-wood, Magnolia tripetala small deciduous tree of eastern North America having creamy white flowers and large leaves in formations like umbrellas at the ends of branches