生活型

herb

形態特徵

• Perennials, with long stolons; culms compressed, nearly solid; ligule a ring of hairs.
• Inflorescence of a pair of racemes, racemes slender, 6-12 cm long, rachis 0.8 mm wide, serrate; pedicels ca. 1 mm long; spikelets in 2 rows. Spikelets 2-flowered, solitary, ovate, slightly acute, 1.5-1.8 mm long; lower glume absent; upper glume and lower lemma similar, thin, margins of upper glume delicately fringed with long silky hairs, hairs as long as spikelet; lower lemma flattened abaxially; upper lemma indurate, ovate, margins inrolled, as long as spikelet, palea indurate, acute, margins inrolled.
• Caryopsis ca. 1.2 mm long, plano-convex, embryo 1/3 length of grain.

分布

• 台灣 : very common in shady places.
• 世界 : Originally from America, now widely naturalized in warm regions of the world.

引證標本

ILAN: Chiaochi, Hsu 833. TAIPEI: Kankou, Hsu 640. TAOYUAN: Neili, Hsu 1242. TAICHUNG: Kukuan, Hsu 669. NANTOU: Sun Moon Lake, Hsu 1349. CHIAYI: Chichou, Suzuki 4535. PINGTUNG: Kenting, Hsu 1098. TAITUNG: Ansou, Hsu 1044. HUALIEN: Yuli, Yamamoto 3050.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 495. 2000.  (Fl. Taiwan 2nd edit.)