Angus s Top Ten Australian Plants For Hedges 1 Acmena The genus Acmena is one of several that is commonly referred to as lilly pillies a group of plants that has become very widely used for hedging both in Australia and overseas Various botanic names have been used for the different lilly pillies namely Eugenia Acmena and Syzygium and unfortunately the professional botanists who name these plants are currently unable to agree on