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feather finger grass, feather windmill-grass, showy chloris

Habit Plants annual; usually tufted, occasionally stoloniferous.
Culms

10-100+ cm.

Sheaths

usually glabrous;

ligules to 4 mm, erose or ciliate;

blades to 30 cm long, to 15 mm wide, basal hairs to 4 mm, otherwise usually glabrous, occasionally pilose.

Panicles

digitate, with 4-20, evidently distinct branches;

branches 5-10 cm, erect to ascending, averaging 10 spikelets per cm.

Spikelets

strongly imbricate, with 1 bisexual and 1(2) sterile floret(s).

Lower glumes

1.5-2.5 mm;

upper glumes 2.5-4.3 mm;

lowest lemmas 2.5-4.2 mm, keels usually prominently gibbous, glabrous, or conspicuously pilose, sides not grooved, margins glabrous, scabrous or pilose basally, with conspicuously longer hairs distally, hairs longer than 1.5 mm, lemma apices not conspicuously bilobed, awned, awns 2.5-15 mm;

second florets 1.4-2.9 mm long, 0.4-0.8 mm wide, somewhat widened distally, not inflated, bilobed, lobes less than 1/5 as long as the lemmas, awned from the sinuses, awns 3-9.5 mm;

third florets greatly reduced, unawned and shorter than the subtending rachilla segment or absent but the rachilla segment present.

Caryopses

1.5-2 mm long, about 0.5 mm wide, elliptic.

2n

= 20, 26, 30, 40.

Chloris virgata

Distribution
from FNA
AL; AR; AZ; CA; CO; FL; GA; IN; KS; KY; LA; MA; MD; ME; MO; MS; NC; ND; NE; NM; NV; NY; OH; OK; PA; SC; TN; TX; UT; HI
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Discussion

Chloris virgata is a widespread species that grows in many habitats, from tropical to temperate areas with hot summers, including much of the United States. It is a common weed in alfalfa fields of the southwestern United States.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 25, p. 210.
Parent taxa Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris
Sibling taxa
C. andropogonoides, C. barbata, C. berroi, C. canterae, C. ciliata, C. cucullata, C. divaricata, C. elata, C. gayana, C. pectinata, C. pilosa, C. radiata, C. submutica, C. texensis, C. truncata, C. ventricosa, C. verticillata
Name authority Sw.
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