Large, flattened root extensions that grow above ground from the base of tree trunks, providing structural support and stability. These roots are common in tropical rainforest trees that grow in shallow soils.
From Old French 'bouterez' meaning 'to thrust against,' referring to architectural supports that brace walls. The botanical term emerged as explorers noted the resemblance between these roots and architectural buttresses.
Buttress roots are like nature's flying buttresses on gothic cathedrals! Some tropical trees develop these massive triangular supports that can extend 30 feet from the trunk - it's the plant kingdom's solution to building skyscrapers on shallow foundations.
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