age aged ancient bark bole bumps dents massive meadow nature old oldly power root Roots spring strong tree trees trunk aggressive-root-system banyan banyan-tree buttress-roots buttressed-root-system buttressing epiphyte evergreen feature-tree ficus ficus-macrophylla invasive-roots massive-trunk Moreton-Bay-fig-tree public-parks rainforest-plant shade shady strangler-fig tremendous-size adventure boys climb climbing fun root-network root-system surface surfaces textured textures thick thin uneven