Buttress root

Buttress roots are up to ten meters high, star-shaped, usually rib-like roots. They give the tall trees ( giant trees ) in tropical rainforest special stability.

Even the domestic flutter elm can form buttress roots. It is adapted to the habitat Aue and endures weeks of flooding. Since wet soils have insufficient oxygen supply to the roots results in no deep root systems can be formed and thus the buttress roots can increase the otherwise lack of stability of the trees. The "board " but do not put away underground, but opens into a sort of comb of fine root system that is rooted at the bottom of the board in the floor.