buttressed roots of huge tree

tree woodland plant forest trunk trail soil jungle wilderness flower deciduous branch leaf vegetation landscape buttressed roots huge mature macritchie rainforest singapore tropical tropics asia root plants nature conservation natural stable steady widespread wide broad girth massive big large tall liana woody vine fern bird nest secondary woods evergreen algae moss lichen mossy dense thick undergrowth litter ground topsoil moist humid weather climate hot warm structure stem nutrient cycle shrubs giant old growth protect bark support epiphyte climber creeper host