Eragrostis curvula |
Eragrostis cumingii |
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weeping love grass |
Cuming's lovegrass |
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Habit | Plants perennial; cespitose, forming innovations at the basal nodes, without glands. | Plants annual; cespitose, without innovations, without glands. |
Culms | (45)60-150 cm, erect, glabrous or glandular. |
10-40(50) cm, erect to prostrate, sometimes geniculate, branching profusely from near the base, 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. |
sparsely hairy at the apices, hairs to 2.5 mm; ligules 0.1-0.2 mm; blades 3-10(12) cm long, 1-3 mm wide, flat to involute, sparsely pilose on the basal 1/2, scabridulous distally. |
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. |
5-20 cm long, 2-8 cm wide, narrowly ovate, open, with 6-10 primary branches; primary branches 1-6 cm, widely spaced, axes trigonous, diverging to 90° from the rachises, densely spikelet-bearing to the base; pulvini sparsely pilose; pedicels 0.4-1(2) mm, stout, straight, flattened. |
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. |
5-12(18) mm long, 1.4-2.4 mm wide, linear-lanceolate, chartaceous, stramineous to greenish with reddish-purple tinges, with 12-42 florets; disarticulation acropetal. |
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 in length, 1.2-1.9 mm, narrowly lanceolate to lanceolate, membranous; lower glumes narrower than the upper glumes; lemmas 1.3-2 mm, lanceolate to ovate, chartaceous, lateral veins conspicuous, greenish, apices acute; paleas 1-1.6 mm, hyaline, keels ciliate, cilia 0.1-0.2 mm, apices obtuse to acute; anthers 3, 0.1-0.2 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. |
0.4-0.6 mm, ovoid, laterally compressed, finely striate, light brown. |
2n | = 40, 50. |
= 40. |
Eragrostis curvula |
Eragrostis cumingii |
|
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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AL; FL; GA; NC; NJ; HI |
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 cumingii is native to southeast Asia and Australia. Within the Flora region, it has become established in Florida, growing in waste places and along roadsides in sandy or gravelly soils, at 0-150 m. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 76. | FNA vol. 25, p. 72. |
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis |
Sibling taxa | ||
Synonyms | E. curvula var. conferta, E. chloromelas | E. broumii |
Name authority | (Schrad.) Nees | Steud. |
Web links |
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