abstract aerial aerial roots angles appearance background banyan banyan tree branch roots branches curtain curtain fig tree environment epiphyte ficus virens fig tree flora growth native nature plants root curtain Roots strangler fig textures tree tropical vegetation aggressive-root-system banyan-tree buttress-roots buttressed-root-system buttressing evergreen feature-tree ficus ficus-macrophylla invasive-roots massive massive-trunk Moreton-Bay-fig-tree public-parks rainforest-plant root-network root-system shade shady strangler-fig surface surfaces textured thick thin tremendous-size uneven aerial-roots columnar-tree competing competitive constricting distinctive epiphytes external fig growing power powerful strangle strangler strangling strength strong sub-tropical trees bank canada lattice natural network sandy black and white Hong Kong wall roots tree timber wo ancient old rock stone hill home house 2014 interesting plant system texture adventure boys climb climbing fun