Japan Flora: Culms long-creeping and branched at base, erect to ascending, 20-50 cm. long, slender, leafy, the nodes pilose; leaf-blades flat, narrowly ovate; 2-6 cm. long, 1-2.5 cm. wide, short-acuminate, cordate and clasping at base, ciliate, glabrous or pilose on both sur­faces; ligules truncate, lacerate, 1-2 mm. long; sheaths short, ciliate, usually hirsute; inflorescence flabellate, long-exserted, with 3 to 20 racemes, these often branched at base, nearly sessile, 3-5 cm. long; rachis-joints usually glabrous; spikelets pale green to purple, lanceolate, acute, the strong nerves aculeate-scaberous; sterile lemma awnless or with a geniculate awn; anthers 0.5-1 mm. long. Sept-Nov. Low mountains and lowlands

Hokkaido, Honshu, Shikoku, Kyushu; very common and variable. e. and tropical Asia

Russia Flora: Plant 20—50 cm tall. Stems ascending or semi-prostrate, branching at base and lower nodes, densely leafy, with hairy nodes. Sheaths patent-hairy, rarely partially glabrous, ciliate along margins; leaf blades 10—18 (25) mm wide, ovate-cordate, long-acuminate, flat, glabrous or nearly glabrous, short-ciliate along margins; ligule of upper leaves 0.7—1.5 mm long. Inflorescence of (2) 3—8 spike-like branches 2—5 cm long, often branching at base, breaking into segments at fruiting. Spikelets 5—6 mm long, greenish, rarely reddish; beside spikelet there is a rudiment (bristle) of second spikelet. Glumes rough along veins from short thick spinules. Lower lemma awnless or with very short thin straight awn not protruding from spikelet. Stamens 2, with anthers 0.5—0.7 mm long. (Plate XXVI).

Ussuri (south: Vladivostok and near village Staraya Devitsa). (Fig. 162). Introduced. — Along roads, on waste ground; very rare. VIII—X. — General distribution: Caucasus (introduced in Western Transcaucasia); Dzungarian-Kashgar, Mongolian, Japanese-Chinese. — Described from Japan (vicinity of Nagasaki).