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Chinese Plant Names | Family List | Poaceae | Urochloa

Urochloa panicoides Beauv.


Description from Flora of China

Panicum panicoides (P. Beauvois) Hitchcock; Urochloa jinshaicola B. S. Sun & Z. H. Hu; U. longifolia B. S. Sun & Z. H. Hu; U. longifolia var. yuanmuensis (B. S. Sun & Z. H. Hu) S. L. Chen & Y. X. Jin; U. yuanmuensis B. S. Sun & Z. H. Hu.

Annual. Culms loosely tufted, geniculately ascending, 20–80 cm tall, nodes bearded. Leaf sheaths loose, with tubercle-based setae, one margin densely ciliate; leaf blades linear-lanceolate, 5–15(–20) × 0.5–1.5 cm, glabrous to thinly pilose, margins pectinate-ciliate at least toward amplexicaul base, apex acuminate; ligule 1.5–2 mm. Inflorescence axis 3–6 cm; racemes 3–10, 2–6 cm, stiff, diverging; rachis flattened, setose mainly from the short stout pedicels; spikelets usually borne singly or in pairs at base, occasionally mostly paired, overlapping by ca. 1/3 their length. Spikelets ovate-elliptic, 4–5 mm, glabrous or pubescent, cuspidate; lower glume ovate,1/4–1/3 spikelet length, 3–5-veined, obtuse; upper glume 5–9-veined with evident cross veins; upper lemma rugose, mucro 0.4–1 mm. Fl. and fr. Sep–Oct.

Urochloa setigera can be confused with forms of U. panicoides with pubescent, paired spikelets, especially when the base is missing. Urochloa panicoides has less abruptly cuspidate spikelets, a more coarsely rugose fertile floret, and a much longer mucro on the upper lemma.

Moist grasslands, lakesides. Sichuan, Yunnan [Bhutan, India; E and S Africa].


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