1	"Spikelets with 3-8 florets, 2 or more fertile"	"Chloris flagellaris"
1	"Spikelets with 1-2 florets, only 1 fertile"	2
2	"Leaves oblong, obtuse"	3
2	"Leaves linear, tapering"	5
3	"Plants delicate annual"	"Chloris pycnothrix"
3	"Plants robust, tufted or stoloniferous perennials"	4
4	"Fertile lemmas with ciliate margins"	"Chloris mossambicensis"
4	"Fertile lemmas completely glabrous"	"Chloris jubaensis"
5	"Fertile lemmas obliquely obovate in profile, the keels slightly gibbous, with a crown of spreading hairs 1.5-4 mm long just below the tips"	"Chloris virgata"
5	"Fertile lemmas lanceolate to obovate-elliptic in profile, not gibbous, without a crown of spreading hairs but often long- or short-ciliate on the margins"	6
6	"Spikelets with 3-4 florets, 2-awned; fertile lemmas ciliate on the margins distally; 2nd lemmas similar to the fertile lemmas but smaller, 3rd and 4th lemmas reduced to clubshaped, awnless scales"	"Chloris gayana"
6	"Spikelets with 2 florets, 2-awned; fertile lemmas thinly pilose on the sides; 2nd lemmas minute, awned rudiments, at most half as long as the fertile lmmas, sometimes reduced to an awned rachilla segment"	"Chloris mensensis"