Ailanthus altissima
As with coppicing, only species with vigorous epicormic growth may be pollarded. In these species (which include many broadleaved trees but few conifers), removal of the main apical stems releases the growth of many dormant buds under the bark on the lower part of the tree. Trees without this growth will die without their leaves and branches. Some smaller tree species do not readily form pollards, because cutting the main stem stimulates growth from the base, effectively forming a coppice stool instead. Examples of trees that do well as pollards include broadleaves such as beeches ("Fagus"), oaks ("Quercus"), maples ("Acer"), black locust or false acacia ("Robinia pseudoacacia"), hornbeams ("Carpinus"), lindens and limes ("Tilia"), planes ("Platanus"), horse chestnuts ("Aesculus"), mulberries ("Morus"), Eastern redbud ("Cercis canadensis"), tree of heaven ("Ailanthus altissima"), willows ("Salix"), and a few conifers, such as yews ("Taxus").