Lolium perenne L., Sp. Pl. 1:. 83. 1753.
Culm 25-50 cm tall, slender, 1-1.5 mm in diameter. Blades linear, 10-15 cm long, 2-5 mm wide; ligule membranous, tongue-shaped, 1.5-2 mm long; auricles conspicuous. Spike up to 15 cm long. Spikelets 2-10-flowered, rarely up to 14-flowered; up to 10 mm long; lower glume absent; upper glume subcoriaceous, narrowly lanceolate, 8 mm long, 5-nerved; lemmas subequal, usually awnless, chartaceous, broadly lanceolate, 5-nerved, as long as the floret, the lowest 7 mm long; palea oblong, as long as the lemma, 2-keeled, minutely ciliate along keels, apex sinus; anther 3 mm long.
TAIPEI: Taipei, Chang s. n. May 1970.
Widely distributed in Europe, North Africa and the temperate regions of Asia.