Eragrostis curvula |
Eragrostis polytricha |
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weeping love grass |
hairysheath 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. |
30-62 cm, erect, glabrous and shiny 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. |
sometimes densely pilose dorsally and on the collars, margins and apices hairy, hairs to 5 mm; ligules 0.2-0.4 mm; blades 5-20(33) cm long, 1-3.5 mm wide, involute to flat, both surfaces with scattered hairs, adaxial surfaces densely hairy behind the ligules, hairs to 7 mm. |
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. |
15-25 cm long, 5-27 cm wide, ovate, open; primary branches 0.6-15 cm, diverging up to 90° from the rachises, capillary, naked basally; pulvini hairy, hairs to 8 mm; pedicels 1.4-10(16) mm, divergent. |
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. |
(2.5)3-5 mm long, 1.1-1.6 mm wide, narrowly lanceolate to linear-oblong, plumbeous, with 4-9 florets; disarticulation acropetal, 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. |
broadly ovate to narrowly lanceolate, hyaline to membranous; lower glumes 1.1-1.6 mm; upper glumes 1.2—1.8 mm; lemmas 1.2-1.8 mm, broadly ovate, membranous throughout, lateral veins inconspicuous, apices acute; paleas 1.1-1.7 mm, membranous to hyaline, narrower than the lemmas, apices obtuse; anthers 3, 0.3—0.5 mm, reddish-purple. |
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. |
0.5-0.8 mm, obovoid to somewhat prism-shaped, laterally compressed, with a well-developed adaxial groove, finely striate, opaque to translucent, reddish-brown. |
2n | = 40, 50. |
= 60, 80. |
Eragrostis curvula |
Eragrostis polytricha |
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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; TX |
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 polytricha grows in sandy and rocky areas, at 0-30 m, usually in open pinelands. It is native to Florida but its primary range lies to the south of the Flora region, from southern Mexico through Central America to Venezuela, Chile, and Argentina. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 25, p. 76. | FNA vol. 25, p. 95. |
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 | Nees |
Web links |
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