Tree or shrub (5)
(Other definitions for maple that I've seen before include "Tree with winged seeds" , "Tree with syrupy sap" , "Tree providing Canada's national emblem" , "Emblematic tree of Canada" , "----- leaf: symbol of Canada" .)
(Other definitions for sumac that I've seen before include "Shrub colourful in Autumn" , "Garden shrub" , "Spice" , "Smoke-bush" , "Subtropical tree" .)