Chloris submutica
Chloris ventricosa
Mexican windmill-grass
Australian windmill grass, plump windmill-grass
30-75 cm, erect.
to 100 cm, erect.
glabrous;
ligules about 0.5 mm, shortly ciliate;
blades to 20 cm long, to 5 mm wide, sometimes with long basal hairs, otherwise scabrous.
glabrous, scabrous, or partly pilose;
ligules erose to ciliate;
blades with basal hairs to 3 mm, otherwise glabrous, scabrous, or sparsely pilose.
with 5-17, evidently distinct branches in 1-3 closely-spaced whorls;
branches to 7 cm, usually erect when young, spreading to reflexed at maturity, averaging 12 spikelets per cm.
digitate, with 2-9 evidently distinct branches;
branches 5-11 cm, spikelet-bearing almost to the base, averaging 10 spikelets per cm.
with 1 bisexual and 1 staminate floret.
with 1 bisexual and 1(2) staminate floret(s).
1.5-3.2 mm;
upper glumes 2.5-3.4 mm;
lowest lemmas 2.8-3.7 mm long, 0.6-1.1 mm wide, broadly linear to elliptic, mostly glabrous but the margins appressed pubescent, apices obtuse, not conspicuously bilobed, sometimes shortly mucronate;
second florets 1.4-2.2 mm long, 0.3-0.9 mm wide, usually at least twice as long as wide, not lobed, unawned, occasionally mucronate.
1.2-2.3 mm;
upper glumes 2.5-4.1 mm;
lowest lemmas 2-5.4 mm long, 0.6-1.2 mm wide, elliptic to obovate, sometimes ventricose, usually glabrous, midveins scabrous, sides not conspicuously grooved, margins inrolled, usually glabrous or scabrous, occasionally with a few scattered hairs, especially distally, apices entire or minutely bilobed, awned, awns 1-11 mm;
second florets 1-2.6 mm long, 0.3-1 mm wide, cylindrical to narrowly turbinate, apices obtuse to truncate, entire, awned, awns 0.5-7.5 mm;
anthers 0.7-1.4 mm.
1.7-2.3 mm long, 0.5-0.6 mm wide, ellipsoid.
1.5-2.1 mm long, about 0.4 mm wide, narrowly obovoid to trigonous.
= ca. 65, 80.
= unknown.
Chloris submutica
Chloris ventricosa
Chloris submutica grows from the southwestern United States through Mexico, Guatemala, and Colombia to Venezuela. In Mexico, it is generally found between 1000-2100 m.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Chloris ventricosa, an Australian species, has been found near old woolen mills in South Carolina and has been cultivated It is very similar to C. truncata, but usually has shorter panicle branches. Other differences include its usually tawny bisexual lemmas and their usually glabrous margins.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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