Poaceae
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- Chloridoideae
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Arundinoideae
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Arundineae
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- Cortaderia
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- Centotheceae
- Danthonieae
- Pappophoreae
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Inflorescences
Dissections:
Cortaderia selloana
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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.
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