 The leaves are dark orange-brown tomentose on emerging, then glaucous blue-green and glabrous with age, 60–110 cm long, bowed, keeled, pinnate, with 180-220 leaflets, the leaflets 8–18 cm long and 2–4 mm wide.The petioles are 18–27 cm long, and armed with sharp spines.The female cones are open, with sporophylls 16–21 cm long, with two to four ovules per sporophyll.