Poaceae

Pooideae

Chloridoideae
Aeluropodeae
Chlorideae
Eragrosteae
Unioleae
Zoysieae
Tragus
Zoysia
Panicoideae

Arundinoideae

Bambusoideae

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Inflorescences

Dissections:
Zoysia japonica

Line drawings

ZOYSIA Willd.
Plants hermaphroditic, rhizomatous, perennial. Culms mat forming, glabrous; internodes solid, terete. Leaves basal and cauline, distinctly distichous; sheaths terete, margins open; auricles absent; ligules a ciliate membrane or a line of hairs; blades flat or involute, linear, lax. Racemes spike-like, narrow with appressed pedicels, some inflorescences reduced to a single spikelet (Z. minima). Spikelets solitary, laterally compressed, disarticulation below the glumes, mucronate or awnless, short pedicellate; florets 1, reduced floret absent, callus glabrous, rachilla not extending beyond floret; glumes 1 or 2, first veinless when present, second 1-veined, unequal, the second longer than the floret, glabrous, mucronate or awnless; lemmas 1-veined, membranous, glabrous, apex entire (obtuse to rounded), mucronate or awnless; paleas 1-veined, awnless, glabrous. Stamens 2 or 3; anthers brown. Caryopses ovate, laterally compressed, brown or amber. Base chromosome number x

A genus of about 10 species. The species of Zoysia are frequently planted as lawn grasses in open, xeric sites. These species are generally salt tolerant.