Eragrostis lehmanniana
Eragrostis japonica
Lehmann lovegrass, Lehmann's love grass
pond lovegrass
(20)40-80 cm, erect, commonly geniculate, sometimes rooting at the lower nodes, glabrous, lower portions sometimes scabridulous.
25-100(115) cm, erect or geniculate, lower portion glabrous and shiny.
sometimes shortly silky pilose basally, hairs less than 2 mm, apices sparsely hairy, hairs to 3 mm;
ligules 0.3-0.5 mm, ciliate;
blades 2-12 cm long, 1-3 mm wide, flat to involute, glabrous, abaxial surfaces sometimes scabridulous, adaxial surfaces scabridulous.
glabrous at the apices and on the upper margins;
ligules 0.4-0.6 mm, scarious, glabrous;
blades (4)15-20(25) cm long, 1.5-6 mm wide, flat, sometimes auriculate, abaxial surfaces glabrous, smooth, adaxial surfaces scabridulous, Panicles 15-40 cm long, 0.8-5 cm wide, lanceoloid, contracted, interrupted near the base;
primary branches 2-10 cm, appressed or diverging to 30° from the rachises, spikelet-bearing to near the base;
pulvini glabrous;
pedicels 0.5-1.5 mm, sinuous.
7-18 cm long, 2-8 cm wide, oblong, open;
primary branches 1-8 cm, appressed or diverging to 40° from the rachises;
pulvini glabrous;
pedicels 0.5-4 mm, diverging or appressed, flexible.
5-12(14) mm long, 0.8-1.2 mm wide, linear-lanceolate, plumbeous to stramineous, with 4-12(14) florets;
disarticulation irregular to basipetal, paleas usually persistent.
2.2-3.8 mm long, 0.8-1.3 mm wide, oblong to narrowly lanceolate, yellowish-brown to whitish and hyaline, with 4-12 florets;
disarticulation basipetal, rachillas and glumes persistent.
oblong to lanceolate, membranous;
lower glumes 1-1.5 mm;
upper glumes 1.3-2 mm;
lemmas 1.5-1.7 mm, ovate, membranous, lateral veins inconspicuous, apices acute to obtuse;
paleas 1.4-1.7 mm, obtuse;
anthers 3, 0.6-0.9 mm, yellowish.
subequal, 0.6-1 mm, ovate to ovate-lanceolate, hyaline;
upper glumes without a midvein;
lemmas 0.9-1.2 mm, ovate, hyaline, lateral veins conspicuous basally, greenish, apices acute;
paleas 0.6-0.8 mm, hyaline, keels smooth basally, scabridulous distally, apices acute, often bifid;
anthers 2, 0.1-0.2 mm, whitish to light brown.
0.6-0.8 mm, ellipsoid to obovoid, dorsally compressed, sometimes with a shallow adaxial groove, smooth, translucent, mostly light brown, embryo region dark brown with a greenish ring.
0.3-0.4 mm, obovoid, smooth, reddish-brown.
= 40, 60.
= 20.
Eragrostis lehmanniana
Eragrostis japonica
Eragrostis lehmanniana is native to southern Africa, where it grows in sandy, savannah habitats. It was introduced for erosion control in the southern United States, where it often displaces native species. In the Flora region, it grows in sandy flats, along roadsides, on calcareous slopes, and in disturbed areas, at 200-1830 m. It is commonly found in association with Larrea tridentata, Opuntia, Quercus, Juniperus, and Bouteloua gracilis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis japonica is native to the tropics of the Eastern Hemisphere; it is now established in moist areas along rivers and streams in the southern portion of the contiguous United States, usually in sandy soils, at 0-200 m.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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