名称状态：被SP2000收录，状态为：Cycas hongheensis为接受名
科属名称：Cycadaceae(苏铁科)  苏铁属
中文名：灰干苏铁
形态描述：Trunk cylindric, sometimes branched, to 8 m × 60 cm, apex not tomentose; bark gray, smooth toward base of trunk, with fine, longitudinal fissures. Leaves 20-50(-60), 1-pinnate, 50-120 × 15-35 cm; petiole subterete, 10-25 cm, with 25-50 spines along each side; leaf blade oblong to elliptic-lanceolate, strongly "V"-shaped in cross section, recurved, pale brown tomentose when young; leaflets in 50-70 pairs, horizontally inserted at 45-50° above middle of rachis, glaucous when mature, 8-18 cm × 6-8 mm, leathery, densely pubescent when young, midvein flat adaxially when fresh (but sulcate when dry), prominent abaxially, base decurrent, margin ± revolute, apex acuminate, pungent. Cataphylls lanceolate, 3-5 × 1-1.5 cm, densely pale brown tomentose adaxially, apex acuminate, pungent. Pollen cones and megasporophylls unknown.
国内分布：云南
全球观测记录分布（数据来自GBIF）: