Syringodium filiforme Kütz.

Rhizome round, 1.5-3.5 mm in diameter, the internodes 1.5-4 cm long. Stems erect, to 1 cm long; scales elliptic, 2-4 cm long. Leaves linear; sheath 1.2-6.8 cm long and 2-3.7 mm in diameter; blade 10-30 cm long and 0.5-2.2 mm wide, slightly narrowed at the base. Inflorescences in bract axils, 2-7 cm long. Flowters solitary, the bract 5-9.5 mm long; staminate flowers consisting of 2 anthers 3-4.5 mm long attached to a stalk, the stalk elongating to 5 mm at anthesis; carpellate flowers with ovaries to 4.5 mm long, the style to 2.5 mm long, the stigmas to 3.5 mm long. Fruits 5.5-6 mm long and 3-4.5 mm wide, 4-angled with a con-spicuous dorsal keel, the lateral surfaces centrally convex.