Chloris virgata |
Chloris submutica |
|
---|---|---|
feather finger grass, feather windmill-grass, showy chloris |
Mexican windmill-grass |
|
Habit | Plants annual; usually tufted, occasionally stoloniferous. | Plants perennial; usually cespitose, occasionally shortly stoloniferous. |
Culms | 10-100+ cm. |
30-75 cm, erect. |
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 about 0.5 mm, shortly ciliate; blades to 20 cm long, to 5 mm wide, sometimes with long basal hairs, otherwise scabrous. |
Panicles | digitate, with 4-20, evidently distinct branches; branches 5-10 cm, erect to ascending, averaging 10 spikelets per cm. |
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. |
Spikelets | strongly imbricate, with 1 bisexual and 1(2) sterile floret(s). |
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. |
1.5-3.2 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. |
Caryopses | 1.5-2 mm long, about 0.5 mm wide, elliptic. |
1.7-2.3 mm long, 0.5-0.6 mm wide, ellipsoid. |
2n | = 20, 26, 30, 40. |
= ca. 65, 80. |
Chloris virgata |
Chloris submutica |
|
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
|
NM; TX
|
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 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.) |
Source | FNA vol. 25, p. 210. | FNA vol. 25, p. 216. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris |
Sibling taxa | ||
Name authority | Sw. | Kunth |
Web links |