Eragrostis curvula |
Eragrostis prolifera |
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weeping love grass |
Dominican lovegrass |
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Habit | Plants perennial; cespitose, forming innovations at the basal nodes, without glands. | Plants perennial; cespitose, with innovations, without rhizomes, not glandular. |
Culms | (45)60-150 cm, erect, glabrous or glandular. |
85-130(150) cm, stiffly erect, glabrous below the nodes. |
Sheaths | with scattered hairs, hairs to 9 mm; ligules 0.6-1.3 mm; blades 12-50(65) cm long, 1-3 mm wide, flat to involute, abaxial surfaces glabrous, sometimes scabridulous, adaxial surfaces with scattered hairs basally, hairs to 7 mm. |
glabrous or hairy at the apices, hairs to 4 mm; ligules 0.1-0.2 mm; blades 25-50 cm long, 1.5-6 mm wide, flat to involute, glabrous abaxially, scabridulous adaxially, sometimes also with a few scattered hairs near the base. |
Panicles | 16-35(40) cm long, (4)8-24 cm wide, ovate to oblong, open; primary branches 3-14 cm, diverging 10-80° from the rachises; pulvini glabrous or not; pedicels 0.5-5 mm, appressed, flexible. |
(10)20-50(60) cm long, 2-8(10) cm wide, narrowly ovate, contracted to open; primary branches mostly 2-14 cm, appressed or diverging up to 50°(90°) from the rachises, spikelets congested near the base of the branches; pulvini glabrous; pedicels 0.3-2.4 mm, appressed, always shorter than the spikelets. |
Spikelets | 4-8.2(10) mm long, 1.2-2 mm wide, linear-lanceolate, plumbeous to yellowish, with 3-10 florets; disarticulation irregular to acropetal, proximal rachilla segments persistent. |
3.2-10(12) mm long, 0.7-1.4 mm wide, linear-lanceolate, stramineous to plumbeous, sometimes with a reddish tinge, with (5)8-25 florets; disarticulation acropetal, glumes first, then the lemmas, paleas persistent. |
Glumes | lanceolate, hyaline; lower glumes 1.2-2.6 mm; upper glumes 2-3 mm; lemmas 1.8-3 mm, ovate, membranous, lateral veins conspicuous, apices acute; paleas 1.8-3 mm, hyaline to membranous, apices obtuse; anthers 3, 0.6-1.2 mm, reddish-brown. |
subequal, ovate to lanceolate, hyaline; lower glumes 1-1.5 mm; upper glumes 1.1-1.6 mm; lemmas 1.1-1.8(2) mm, ovate, membranous, apices acute; paleas 0.8-1.7 mm, hyaline, narrower than the lemmas, apices obtuse to truncate; anthers 2, 0.2-0.3 mm, purplish. |
Caryopses | 1-1.7 mm, ellipsoid to obovoid, dorsally compressed, adaxial surfaces with a shallow, broad groove or ungrooved, smooth, mostly translucent, light brown, bases often greenish. |
0.6-0.9 mm, ovoid, flattened ventrally, finely striate, reddish-brown. |
2n | = 40, 50. |
= 40. |
Eragrostis curvula |
Eragrostis prolifera |
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Distribution |
AL; AR; AZ; CA; CO; DE; FL; GA; IL; KS; KY; LA; MA; MD; MO; MS; NC; NJ; NM; NY; OH; OK; OR; PA; SC; TN; TX; UT; VA; WA; WV; HI; PR
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FL |
Discussion | Eragrostis curvula is native to southern Africa. It is often used for reclamation because it provides good ground cover but, once introduced, it easily escapes. In the Flora region, it grows on rocky slopes, at the margins of woods, along roadsides, and in waste ground, at 20-2400 m, usually in pine-oak woodlands, and yellow pine and mixed hardwood forests. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Eragrostis prolifera grows on beaches, in brackish water, and along roadsides, at elevations below 5 m in Florida. Its range extends southward from Florida through Mexico and Central America to Colombia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 76. | FNA vol. 25, p. 99. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis |
Sibling taxa | ||
Synonyms | E. curvula var. conferta, E. chloromelas | |
Name authority | (Schrad.) Nees | (Sw.) Steud. |
Web links |
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