Vasilis Teodoridis:
Poaceae | Arthraxon
7. Arthraxon hispidus (Thunberg) Makino; Bot. Mag. (Tokyo). 26: 214. 1912.
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Annual. Culms slender; sprawling; decumbent; rooting from lower nodes; weakly ascending up to 30 cm or more. Leaf sheaths glabrous to tuberculate-hispid; margin ciliate; leaf blades ovate to narrowly ovate; 2–5 cm x 6–15 mm; glabrous or hispid; base amplexicaul; margins pectinate-setose at least around base; apex sharply acute; ligule 0.5–3 mm. Racemes 2–10 or more; 1.5–4 cm; pale green or purple; rachis internodes (1/2–) 2/3–3/4 length of sessile spikelets; glabrous or sparsely to densely pilose; hairs less than 0.5 mm. Sessile spikelet 3–5 mm; lower glume lanceolate; weakly convex; margins not inflexed; 6–9-veined; veins scabrid-hispidulous to spinulose; upper glume slightly longer than lower; apex cuspidate; awn up to 11 mm; well developed and exserted from glumes; or sometimes reduced and included; palea absent. Anthers 2; 0.7–1 mm. Pedicelled spikelet usually absent; pedicel reduced to a minute stump; sometimes up to 2 mm or more at raceme apex; glabrous; sparsely ciliate; or infrequently densely pilose. Fl. and fr. Sep–Nov. 2n = 10; 18; 36.
Streamsides; damp meadows; among crops; other moist places; 100–2300 m. Anhui; Fujian; Guangdong; Guizhou; Hainan; Hebei; Heilongjiang; Henan; Hubei; Jiangsu; Jiangxi; Nei Mongol; Ningxia; Shaanxi; Shandong; Sichuan; Taiwan; Xinjiang; Yunnan; Zhejiang [Bhutan; India; Indonesia; Japan; Kazakhstan; Korea; Kyrgyzstan; Malaysia; Nepal; New Guinea; Pakistan; Philippines; Russia (Far East); Sri Lanka; Tajikistan; Thailand; Uzbekistan; Africa; SW Asia (Caucasus; Oman); Australia].