Chloris barbata
Chloris divaricata
swollen fingergrass, swollen windmill-grass
spreading windmill-grass
15-95 cm, erect or decumbent and rooting at the lower nodes.
20-50 cm.
glabrous;
ligules 0.3-0.5 mm, erose to lacerate;
blades to 15 cm long, 0.3-0.6 mm wide, with basal hairs, otherwise usually glabrous.
glabrous;
ligules membranous, ciliolate;
blades to 15 cm long, 1-1.5 mm wide, glabrous or scabrous.
digitate, with 7-15 evidently distinct branches;
branches 3-8 cm, more or less erect, averaging 14 spikelets per cm.
digitate, with 3-9 branches;
branches 4-17 cm, evidently distinct, becoming horizontal, spikelet-bearing to the base or within 0.5 cm of the base, distal portion with 3-7 spikelets per cm.
with 1 bisexual and 2(3) sterile florets.
appressed, with 1 bisexual and 1 sterile floret.
1.2-2.1 mm;
upper glumes 2.3-2.7 mm;
lowest lemmas 2-2.7 mm, ovate to elliptic, calluses and distal portion of the margins pilose, hairs to 1 mm, keels glabrous or pilose, apices awned, awns 4-7.7 mm;
second florets 0.9-1.3 mm long, 0.4-0.9 mm wide, slightly to strongly widened distally, inflated, usually glabrous, truncate, awned, awns 5-7 mm;
third florets obovoid to subspherical, smaller than the first, strongly inflated.
0.9-1.8 mm;
upper glumes 2-2.9 mm;
lowest lemmas 2.9-4 mm, linear to narrowly lanceolate, mostly glabrous or scabrous, margins glabrous or with a few short, appressed hairs near the apices, 1-3-awned, central awns 7.5-17 mm, lateral lobes unawned or with awns less than 0.4 mm;
second florets 1.2-1.9 mm, narrowly elliptic, bilobed for 1/3–1/2 of their length, apices acute, awned from between the lobes, awns 4.5-9.5 mm.
1.1-1.4 mm.
about 2.2 mm long, about 0.4 mm wide, narrowly ellipsoid.
= 20, 40, ca. 50.
= unknown.
Chloris barbata
Chloris divaricata
Chloris barbata grows in subtropical and tropical coastal regions on loams, limestone-derived soils, and along beaches. The main portion of its range lies to the south of the Flora region, through the Caribbean and the east coast of Mexico, Central America, and South America. It is a weedy species, often growing in waste areas, but also in cultivated fields.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Chloris divaricata is an Australian species that was collected around woolen mills of South Carolina in the first half of the twentieth century. It has since become established in Texas and New Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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