生活型

herb

形態特徵

• Culms erect, weak, to 40 cm tall; nodes pubescent.
• Blade lanceolate, base more or less rounded, ca. 7 cm long, 7 mm wide; ligule oblong, ca. 2 mm long, glabrous; sheath compressed, swollen, margin ciliate.
• Racemes paired, 4-6 cm long; joint of rachis and pedicel triangular in cross section, swollen. Spikelets paired, one pedicellate and other sessile. Sessile spikelet ca. 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 sinus.

分布

• 台灣 : in the south along irrigation ditches.

引證標本

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

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 556. 2000.  (Fl. Taiwan 2nd edit.)