Pandanus irregularis (Pandanaceae)
Pandanus irregularis15 novembre 2012 ()
Treelet up to 5 m, unbranched; trunk thorny 10 cm in diam., proproots up to 80 cm from ground; Leaves coriaceous in the lower 2/3, soft coriaceous in distal 1/3, 15 x 180-220 cm; sheath white; prickles on margins and mid-rib blackish; Leave apex often missing, abrubtly attenuate and flagellate. Sterile. Collected with S. Christoph, C. Davidson, V. Chamchumroon, N. Ritphet & S. Sirimongkol. Borders of the rivers
Martin W. Callmander & et al.