生活型

herb

形態特徵

• Culms tufted.
• Blade lanceolate, ca. 3 cm long, 4 mm wide; ligule ca. 0.2 mm long, minutely ciliate on upper margin.
• Inflorescence a single terminal raceme, ca. 9-10 cm long. Spikelets 1-flowered, 3.5-4 mm long; glumes lanceolate, hispid abaxially, tipped with a long awn, 1-nerved; lower glume ca. 3.5 mm long, excluding long awns which are ca. 25 mm long; upper glume of nearly same length as lower, tipped with a long awn of ca. 18 mm long; lemma lanceolate, hyaline, 1-nerved, acute, ca. 1.2 mm long; palea hyaline, 2-nerved, ca. 0.8 mm long, minutely ciliate at apex.
• Caryopsis ca. 2 mm long; embryo 1/3 its length of caryopsis.
• This species is probably the same as <i>P. hordiformis</i> Nees which is characterized by the definite lines of hairs along the dorsal surface of glumes.

引證標本

TAIPEI: Tanshui, Sasaki s. n. Nov. 13, 1924. TAINAN: Anpin, Yamazaki s. n. 1923 (Type).

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 431. 2000.  (Fl. Taiwan 2nd edit.)