 The stems are erect, up to 2.5 m tall and 20 cm diameter.The leaves are orange tomentose on emerging, soon becoming bright glossy green and glabrous, 80–170 cm long, pinnate, with 120-230 leaflets.The leaflets are 8.5–16 cm long and 5–8 mm wide, and lie flat or in a shallow 'v'-shape on either side of the leaf stem.