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FOC | Family List | FOC Vol. 22 | Poaceae

188. Miscanthus Andersson, Öfvers. Kongl. Vetensk.-Akad. Förh. 12: 165. 1855.

芒属 mang shu

Authors: Shou-liang Chen & Stephen A. Renvoize

Diandranthus L. Liu; Imperata subg. Triarrhena Maximowicz; Rubimons B. S. Sun; Triarrhena (Maximowicz) Nakai.

Perennial, tufted or rhizomatous. Culms slender to robust, erect, solid. Leaves basal or cauline; leaf blades large, linear, flat, broad or narrow; ligule membranous. Inflorescence a panicle, often large and plumose, of racemes arranged on a long or short axis; raceme axis tough, internodes slender, spikelets paired, both spikelets pedicelled, pedicels slender, flattened, slightly clavate. Spikelets similar, lanceolate, dorsally compressed; callus bearded with hairs shorter than, as long as, or longer than the spikelet; glumes papery or membranous; lower floret usually represented by a hyaline sterile lemma; upper floret bisexual, lemma hyaline, awned or awnless. Stamens 2–3. Caryopsis oblong or ellipsoid.

Fourteen species, mostly in SE Asia and the Pacific Islands, extending to tropical Africa; seven species (two endemic) in China.

This genus is readily recognized by its paniculate inflorescence of racemes, which have a tough rachis, and also by its paired spikelets, both of which are pedicelled.

1 Stamens 2   (2)
+ Stamens 3   (3)
2 (1) Callus hairs longer than spikelet, golden brown in color.   6 M. nepalensis
+ Callus hairs shorter than spikelet, purple or white in color.   7 M. nudipes
3 (1) Panicle spikelike with short racemes appressed to the axis; spikelets straight-awned; lower glume distinctly 2-keeled.   1 M. paniculatus
+ Panicle large, usually open with spreading racemes; spikelets awnless or geniculately awned; lower glume weakly 2-keeled   (4)
4 (3) Spikelets awnless   (5)
+ Spikelets awned   (6)
5 (4) Culms 300–700 cm tall, branching at nodes; inflorescence 20–40 cm.   2 M. lutarioriparius
+ Culms 65–160 cm tall, unbranched; inflorescence 7–30 cm.   3 M. sacchariflorus
6 (4) Axis more than 2/3 the length of the panicle.   4 M. floridulus
+ Axis up to 1/2 the length of the panicle.   5 M. sinensis

Lower Taxa


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