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FOC | Family List | FOC Vol. 22 | Poaceae | Panicum

13. Panicum virgatum Linnaeus, Sp. Pl. 1: 59. 1753.

柳枝稷 liu zhi ji

Chasea virgata (Linnaeus) Nieuwland; Milium virgatum (Linnaeus) Lunell; Panicum giganteum Scheele; P. glaberri-mum Steudel; P. purinisum Bernhardi ex Trinius.

Perennial with scaly rhizomes. Culms tough, erect, 60–200 cm tall, usually unbranched, nodes glabrous or pubescent. Leaves basal and cauline; leaf sheaths rounded, glabrous; leaf blades linear, flat, 20–40 × 0.3–1.5 cm, glabrous, apex acuminate; ligule 1.5–7 mm, a ciliate fringe, membranous at the base. Panicle open, oblong or rhomboid in outline, 15–55 cm, the spikelets often clustered on the secondary branches. Spikelets ovate, 3–5 mm, glabrous; glumes ovate, acuminate; lower glume 2/3–3/4 length of spikelet, 5-veined; upper glume as long as spikelet, 5-veined; lower floret staminate, lemma similar to upper glume, 5–7-veined, palea well developed; upper floret pale, shiny. Fl. and fr. Jul–Oct. 2n = 21, 25, 30, 32, 36, 72.

Commonly cultivated for forage [native to North America].


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