Poaceae

Pooideae

Chloridoideae

Panicoideae

Arundinoideae
Aristideae
Arundineae
Arundo
Cortaderia
Phragmites
Centotheceae
Danthonieae
Pappophoreae

Bambusoideae

Home

Inflorescences

Dissections:
Cortaderia selloana

CORTADERIA Stapf.
Plants dioecious (in Texas), caespitose, perennial. Culms erect to ascending (usually more than 2 m tall), glabrous to scabrous; internodes hollow, terete. Leaves basal, not distinctly distichous; sheaths terete, margins open; auricles absent; ligules a dense line of hairs; blades involute (sharply serrate margins), attenuate, lax. Panicles with primary branches ascending, contracted (dense). Spikelets solitary, laterally compressed, disarticulation above the glumes, awnless or awned; rachilla glabrous and not extended beyond upper floret; pedicellate; florets 3-4, reduced floret at apex, callus hairy; glumes 2, 1-3-veined, nearly equal, longer than first floret, glabrous, awnless (hyaline); lemmas 3- veined, hyaline, glabrous, apex entire or bifid, awned or awnless; awn when awned apical or from between lobes of bifid apex. Stamens 3 or 0. Caryopses (?) or 0. Base chromosome number x=6. This genus, native to the Southern Hemisphere has about 24 species.