Chloris virgata |
Chloris pectinata |
|
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feather finger grass, feather windmill-grass, showy chloris |
comb windmill-grass |
|
Habit | Plants annual; usually tufted, occasionally stoloniferous. | Plants annual. |
Culms | 10-100+ cm. |
20-75 cm, erect, often branched above. |
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. |
glabrous; ligules membranous, ciliate; blades to 15 cm long, 2-5 mm wide, sometimes with basal hairs, otherwise glabrous or scabrous. |
Panicles | digitate, with 4-20, evidently distinct branches; branches 5-10 cm, erect to ascending, averaging 10 spikelets per cm. |
digitate, with 4-13 easily separable or evidently distinct branches; branches 5-11 cm, initially erect, becoming divaricate, with 10-14 spikelets per cm. |
Spikelets | strongly imbricate, with 1 bisexual and 1(2) sterile floret(s). |
pectinate, diverging at a wide angle from the branch axes, with 1 bisexual and 1 staminate floret. |
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. |
1.4-2.5 mm; upper glumes 2.9-4.3 mm; lowest lemmas 3-6.2 mm long, 0.4-0.6 mm wide, linear to narrowly lanceolate, margins glabrous, scabrous, or with hairs less than 0.2 mm, lemma apices bilobed, lobes 0.5-1 mm, sometimes awned, central awns 4-37 mm, awns of lateral lobes, if present, less than 0.6 mm; second florets 1.7-2.9 mm long, 0.2-0.3 mm wide, laterally compressed, bilobed, lobes 1/3–1/2 as long as the lemmas, awned, awns 4-10 mm. |
Caryopses | 1.5-2 mm long, about 0.5 mm wide, elliptic. |
about 2.3 mm long, about 0.3 mm wide, narrowly ellipsoid, trigonous. |
2n | = 20, 26, 30, 40. |
= unknown. |
Chloris virgata |
Chloris pectinata |
|
Distribution |
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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SC |
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.) |
Chloris pectinata is an Australian species that was collected around woolen mills in South Carolina in the first half of the twentieth century. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 210. | FNA vol. 25, p. 214. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris |
Sibling taxa | ||
Name authority | Sw. | Benth. |
Web links |