Eragrostis curvula

(Schrad.) Nees
Common names: Weeping lovegrass
Introduced
Synonyms: Eragrostis curvula var. conferta Eragrostis chloromelas
Treatment appears in FNA Volume 25. Treatment on page 76.

Plants perennial; cespitose, forming innovations at the basal nodes, without glands. Culms (45) 60-150 cm, erect, glabrous or glandular. 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. 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. 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. 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. 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. 2n = 40, 50.

Distribution

Wash., Del., W.Va., Pacific Islands (Hawaii), Fla., Puerto Rico, N.J., N.Mex., Tex., La., Tenn., N.Y., Pa., Va., Colo., Calif., Ala., Ark., Ill., Ga., Ariz., Md., Mass., Ohio, Utah, Mo., Oreg., Kans., Okla., Miss., Ky., N.C., S.C.

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.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis curvula"
reddish-brown +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Obtuse (?) +  and Acute (?) +
Paul M. Peterson +
(Schrad.) Nees +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
not +  and glabrous +
keeled +  and rounded +
pseudopetiolate +  and branching +
greenish +  and light-brown +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
ungrooved +
swelling +
membranous +
not pseudopetiolate +
12 cm120 mm <br />0.12 m <br /> (50 cm500 mm <br />0.5 m <br />) +
pubescent +  and glabrous +
flat +  and involute +
1mm;3mm +
not disarticulating +
not spikelike +
pubescent +  and glabrous +
compressed +, ellipsoid +  and obovoid +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Weeping lovegrass +
branched +, simple +  and rooting +
glandular +  and glabrous +
geniculate +
60 cm600 mm <br />0.6 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Wash. +, Del. +, W.Va. +, Pacific Islands (Hawaii) +, Fla. +, Puerto Rico +, N.J. +, N.Mex. +, Tex. +, La. +, Tenn. +, N.Y. +, Pa. +, Va. +, Colo. +, Calif. +, Ala. +, Ark. +, Ill. +, Ga. +, Ariz. +, Md. +, Mass. +, Ohio +, Utah +, Mo. +, Oreg. +, Kans. +, Okla. +, Miss. +, Ky. +, N.C. +  and S.C. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
3 +  and 10 +
round +  and compressed +
reduced +
persistent +  and deciduous +
shorter or longer +
subtending +
lanceolate +
uncinate +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
(1)3(5)-veined +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
sometimes longer +
ciliate +  and ciliolate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
membranous +
inconspicuous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
16cm +  and 35cm +
ovate +  and oblong +
8 cm80 mm <br />0.08 m <br /> (24 cm240 mm <br />0.24 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
dry +  and fleshy +
3 cm30 mm <br />0.03 m <br /> (14 cm140 mm <br />0.14 m <br />) +
not +  and glabrous +
spikelike +
Introduced +
plumbeous +  and yellowish +
0.4 cm4 mm <br />0.004 m <br /> (0.82 cm8.2 mm <br />0.0082 m <br />) +
1 +  and 60 +
linear-lanceolate +
1.2mm +  and 2mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Eragrostis curvula var. conferta +  and Eragrostis chloromelas +
Eragrostis curvula +
Eragrostis +
species +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
7 +  and 13 +
rhizomatous +  and stoloniferous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +  and synoecious +