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panicum
''Panicum'' (panicgrass) is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growing to 1–3 m tall.〔(Freckmann, R. W. & M. G. Lelong. 2002. Nomenclatural changes and innovations in ''Panicum'' and ''Dichanthelium'' (Poaceae: Paniceae). Sida 20(1): 161–174 )〕〔Valdes, B. & H. Scholz. 2006. The Euro+Med treatment of Gramineae - a generic synopsis and some new names. Willdenowia 36(2): 657–669〕
The flowers are produced in a well-developed panicle often up to 60 cm in length with numerous seeds, which are 1–6 mm long and 1–2 mm broad. The fruits are developed from a two-flowered spikelet. Only the upper floret of each spikelet is fertile; the lower floret is sterile or staminate. Both glumes are present and well developed.〔(Flora of China Vol. 22 Page 504 黍属 shu shu ''Panicum'' Linnaeus, Sp. Pl. 1: 55. 1753. )〕〔(Flora of Pakistan )〕〔(Altervista Flora Italiana, genere ''Panicum'' ) includes photos and distribution maps of several species〕〔(Biota of North America Program 2013 county distribution maps )〕〔Valdés-Reyna, J., F. O. Zuloaga, O. Morrone & L. Aragón Melchor. 2009. El género ''Panicum'' (Poaceae: Panicoideae) en el noreste de México. Boletín de la Sociedad Botánica de México 84: 59–82.〕〔Morrone, O., A. M. Antón & F. O. Zuloaga. 1995. ''Axonopus''. Flora Fanerogámica Argentina. 19(1): 11–16〕
Australia has 29 native and 9 introduced species of ''Panicum''.〔Grasses of the Tweed Valley of NSW: An introductory field guide to locally common grasses: native and introduced, Compiled by Penny Watsford, Nullum Publications, 2004 ISBN 0-9756823-0-X)〕〔(Ausgrass2, Grasses of Australia )〕〔(Atlas of Living Australia )〕
Well-known ''Panicum'' species include proso millet and switchgrass.
==Selected species==
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