CHLORIS O. Swartz Windmillgrass
Plants hermaphroditic, caespitose or rhizomatous or stoloniferous, annual or perennial. Culms erect or ascending or geniculate
or decumbent, glabrous; internodes solid or hollow, terete. Leaves basal and cauline, not distinctly distichous; sheaths
with compressed keels or terete, margins open; auricles absent; ligules a ciliate membrane or a line of hairs; blades flat
or folded or involute, linear, lax, apex obtuse to acute. Panicles of 2 to several spicate primary unilateral branches,
primary branches digitate or subdigitate or verticillate, not disarticulating at base of inflorescence or disarticulating at
base of inflorescence, terminating in a bare point. Spikelets solitary or paired, laterally compressed, disarticulation
above glumes, awned; sessile or subsessile; florets 2-3, reduced florets (2) at apex, callus hairy, rachilla not extending
above upper floret, rudiment present; glumes 2, first 1-veined, second 1-4-veined, unequal, shorter than first floret,
glabrous, awned; lemmas 3-veined, chartaceous, hairy on veins, apex entire or emarginate, awned; awn (1)
apical or from between lobes of lemma, straight; paleas 2-veined, awnless, glabrous. Stamens 3; anthers yellow or cream or
purple. Caryopses ovate or ellipsoid or fusiform, terete, yellow or amber. Base chromosome number x=10.
A genus of about 50 tropical and subtropical species. Related to Enteropogon and Trichloris. Several
taxa are important livestock forage. Chloris virgata is an important disturbance species.