The trunks are clustering in L. major, occasionally clustering in L. pulchra, and solitary in L. piassaba; they reach 15 cm wide to 6 m tall, and are usually covered in old, extremely fibrous leaf bases. The pinnate leaves, up to 5 m, are carried on long, hairy petioles which disintegrate into black, fibrous masses against the trunk. The 1 m leafl...