Mangrove
Roots are always expected to grow underground, beneath the surface of soil. However, in some cases it is common for roots to appear on water or above ground.
roots
adventitious
Large Buttress roots stand above the ground in order to give support to the trees and they also enable the trees to gain more nutrients. The buttress roots can intertwine with the roots of other trees in the area, this can give more support to the other trees aswell.
shallow roots extend away from a plant long; thinck roots that grow deep
There are several edible roots of tropical vines, including taro, yam and jicama.
Roots
The tree roots will extend beyond the canopy cover or the tree would not be able to draw moisture from the soil as the foliage will kep the rain off.
nick dudley
Their roots and their suface area
i don't know the answer to this question but I think that the dry soil In the tropical rainforest is really dry and you cant plant roots there.
Because they like it there. You got a problem with that?