Eragrostis lehmanniana
Eragrostis tef
Lehmann lovegrass, Lehmann's love grass
teff
(20)40-80 cm, erect, commonly geniculate, sometimes rooting at the lower nodes, glabrous, lower portions sometimes scabridulous.
25-60 cm, erect, 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.
mostly glabrous, apices hairy, hairs to 5 mm;
ligules 0.2-0.4 mm, ciliate;
blades 10-30 cm long, 2-5.5 mm wide, flat to involute, glabrous abaxially, scabridulous adaxially.
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.
10-45 cm long, 2.5-22 cm wide, ovate, open to contracted;
primary branches 4-17 cm, appressed or diverging up to 50° from the rachises, flexible, naked below;
pulvini glabrous or hairy, hairs to 5 mm;
pedicels 2.5-17 mm, appressed or divergent.
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.
4-11 mm long, 1.3-2.5 mm wide, linear-lanceolate to ovate, stramineous, grayish-green to purplish, with 4-16 florets;
disarticulation tardy, acropetal, caryopses falling before the glumes and lemmas, paleas 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.
lanceolate, membranous to hyaline;
lower glumes 1-2 mm;
upper glumes 1.5-2.8 mm;
lemmas 1.6-3 mm, lanceolate, membranous, apices acute;
paleas 1.4-2.2 mm, hyaline, keels scabridulous, apices obtuse;
anthers 3, 0.2-0.5 mm, purplish.
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.
0.7-1.3 mm, obovoid, not grooved, smooth, light brown to whitish.
= 40, 60.
= 40.
Eragrostis lehmanniana
Eragrostis tef
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 tef is native to northern Africa. In Ethiopia, it is used both as a grain and as fodder for cattle. It is also grown, but not commonly, for these purposes in the Flora region and is occasionally found as an escape from cultivation.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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