Fern - Polypodiales, Pteridium aquilinum var. latiusculum

Distinguished from other Pteridium aquilinum varieties by the terminal segments of pinnules 2-4 times longer than wide; segment margins and abaxial surface of blade midrib and costae shaggy.

Petiole 15--100 cm. Blade broadly triangular to sometimes ovate, 3-pinnate or 3-pinnate-pinnatifid at base, 20--80 × 25--50 cm; blade margins and abaxial surface shaggy, rachises and costae glabrous or sparsely pilose abaxially. Pinnae (proximal) broadly triangular, distal pinnae narrowly triangular.. more