Poaceae

Pooideae

Chloridoideae

Panicoideae
Andropogoneae
Andropogon
Arthraxon
Bothriochloa
Chrysopogon
Dichanthium
Elionurus
Eremochloa
Hemarthria
Heteropogon
Imperata
Microstegium
Mnesithea
Rottboellia
Saccharum
Schizachyrium
Sorghastrum
Sorghum
Themeda
Trachypogon
Tripsacum
Zea
Paniceae

Arundinoideae

Bambusoideae

Home

Inflorescences

Dissections:
Imperata brevifolia

IMPERATA Cyr.
Plants hermaphroditic, caespitose or rhizomatous, perennial. Culms erect or ascending; internodes solid, glabrous or hairy, terete; nodes glabrous or hairy. Leaves basal, not distinctly distichous; sheaths terete, margins open; auricles present; ligules a ciliate membrane; blades flat, tapering at base and apex, apex attenuate. Panicles of racemose branches contracted, terminal, sheaths subtending inflorescence not inflated and spathe-like; primary branches rebranched, branches ascending, alternate not aromatic; pedicels not with a longitudinal groove, hairy, terete. Spikelets paired (subtended by a tuff of long, silky, silver hairs), similar in size and shape, disarticulation below the glumes, dorsiventrally compressed or terete, short pediceled spikelets perfect, long pediceled spikelets perfect. Short pediceled spikelets perfect, awnless, terete or doriventrally compressed. Long pediceled spikelets perfect, awnless, terete or dorsiventrally compressed; first glumes 0-keeled, gland-like depressions or pits not present; abaxial surface flat, smooth, membranous, glabrous, awnless; second glumes length equal to first glumes; lower floret sterile, lemmas hyaline, entire, awnless; paleas absent; upper florets perfect, lemmas hyaline, entire (acute), awnless; paleas present, hyaline. Stamens 1; anther brown. Caryopses nearly terete. Base chromosome number x=10.

A small genus of about eight species distributed in the warmer parts of both hemispheres. The species are adapted to saline, open habitats.