Purely hypothetical question here. Would it be feasibly possible to have a planet entirely covered in a dense network of interlocking trees?
The idea is that the trees themselves act as the 'crust' of the planet, with virtually all life living on them. The planet could be a water planet far below, allowing plenty of water for such a structure to grow, and nutrients from the animals living in the water and on the trees themselves would provide the necessary nutrients.
Is such a structure possible? If so, what would its prominent features be?
Obviously there would be a bit of a support issue, which is where the interlocking part comes from. Think along the lines of a Banyan tree. Get a big enough tree to curve with the planet, and maybe get some flotation device at the base, and I would imagine it would keep itself up. For that matter you could break it up into a bunch of small trees and have the interlocking tops form leaf 'sails' and go cruising around (that was a purely random idea off the top of my head, and not really related to this question in any way whatsoever).