The term 'Wild Shrub' can be summarized by the crossword solution of 'SUMAC, ' which is a five-letter word. SUMAC is a type of shrub or small tree that is native to many parts of the world, including North America, Europe, and Asia. It is known for its bright red berries and its leaves, which are often used in cooking and herbal medicine. SUMAC is also used as an ornamental plant in gardens and landscaping.