屏東鴨嘴草

Culms erect, weak, up to 40 cm high; nodes pubescent. Blade lanceolate, base more or less rounded, about 7 cm long by 7 mm wide; ligule oblong, about 2 mm long, glabrous; sheath compressed, swollen, margin ciliate. Racemes paired, 4-6 cm long; rachis-joint and pedicel triangular in cross-section, swollen. Spikelets paired, the one pedicellate and the other sessile. Sessile spikelet about 4 mm long, ovate-oblong; callus short, ciliate; lower glume coriaceous towards base, convex, transversely 5-6 rugose, upper part chartaceous, oblique, with numerous nerves, scabrous; upper glume boat-shaped, keeled, shortly ciliate along keel; lower lemma lanceolate, transparent, 1-nerved, paleate; upper lemma ovate oblong, transparent 2-toothed, with an awn of 10-15 mm long, protruding from the sinus.

TAINAN: Tainan, Hsu 615. PINGTUNG: Ssuchungchi, Hsu. s. n. Oct. 10, 1960, Matuda A132.

Endemic to Taiwan.

This species grows in southern Taiwan along irrigation ditches.