Chloris cucullata |
Chloris gayana |
|
---|---|---|
hooded windmill-grass |
Rhodes grass, Rhodes windmill-grass |
|
Habit | Plants perennial; cespitose. | Plants perennial; usually stoloniferous. |
Culms | 15-60 cm, erect. |
to 300 cm, erect. |
Sheaths | glabrous; ligules 0.7-1 mm; blades to 20 cm long, 2-4 mm wide, without basal hairs, glabrous or scabrous, upper cauline leaves often greatly reduced. |
glabrous or scabrous, often ciliate apically; ligules ciliate; blades to 30 cm long, 15 mm wide, scabrous. |
Panicles | with 10-20 branches in several closely-spaced whorls; branches 2-5 cm, spreading, with 14-18 spikelets per cm; disarticulation beneath the glumes. |
digitate, with 9-30 evidently distinct branches; branches 8-20 cm, usually somewhat divaricate, spikelet-bearing to the base, averaging 10 spikelets per cm. |
Spikelets | with 1 bisexual and 1 sterile floret. |
strongly imbricate, tawny, with 1 bisexual and (1)2-4 usually staminate, sometimes sterile florets. |
Lower glumes | 0.5-0.7 mm; upper glumes 1-1.5 mm; lowest lemmas 1.5-2 mm long, 0.7-1 mm wide, broadly elliptic, mostly glabrous but the keels and marginal veins appressed-pilose, obtuse, awned, awns 0.3-1.5 mm; second florets 1-1.5 mm long and about equally wide, conspicuously inflated, spherical, with the distal portion of the margins inrolled, not or inconspicuously bilobed, lobes less than 1/5 as long as the lemmas, midveins sometimes excurrent to 1.5 mm. |
1.4-2.8 mm; upper glumes 2.2-3.5 mm; lowest lemmas 2.5-4.2 mm long, 0.7-1 mm wide, ovate to obovate or elliptic, somewhat gibbous, sides not grooved, pubescence variable, sides usually glabrous, sometimes scabrous or appressed pubescent, margins usually glabrous or appressed pubescent on the lower portions, sometimes throughout their length, sometimes with strongly divergent hairs distally, occasionally with strongly divergent hairs their entire length, divergent hairs, when present, 1+ mm, lemma apices inconspicuously bilobed, awned, awns 1.5-6.5 mm; second florets staminate or sterile, 2.2-3.2 mm long, 0.3-1 mm wide, similar to the first floret but more cylindrical, not widened distally, inflated, if at all, only near the apices, inconspicuously bilobed, awned, awns 0.8-3.2 mm; distal florets progressively smaller, longer than the subtending rachilla segment, awn-tipped or unawned. |
Caryopses | 0.9-1.2 mm long, about 0.5 mm wide, obovoid. |
1-1.5 mm long, about 0.5 mm wide. |
2n | = 40. |
= 20, 30, 40. |
Chloris cucullata |
Chloris gayana |
|
Distribution |
AR; AZ; FL; KS; ME; NM; OK; SC; TX
|
AZ; CA; FL; IL; LA; MA; ME; MS; NC; TX; VA; HI; Virgin Islands
|
Discussion | Chloris cucullata is common along roadsides and in waste areas throughout much of Texas and adjacent portions of New Mexico and Mexico. Records from outside this area probably represent introductions. Chloris cucullata hybridizes with both C. andropogonoides and C. verticillata (see discussion under C. andropogonoides). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Chloris gayana grows in warm-temperate to tropical regions throughout the world, including the southern United States. It is cultivated as a meadow grass in irrigated regions of the southwest. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 214. | FNA vol. 25, p. 210. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Chloris |
Sibling taxa | ||
Name authority | Bisch. | Kunth |
Web links |