Eragrostis lehmanniana
Eragrostis silveana
Lehmann lovegrass, Lehmann's love grass
Silveus' lovegrass
(20)40-80 cm, erect, commonly geniculate, sometimes rooting at the lower nodes, glabrous, lower portions sometimes scabridulous.
45-60 cm, erect, often glandular below the nodes, sometimes viscid.
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.
often viscid, sometimes sparsely pilose, hairy at the apices, hairs to 6 mm;
ligules 0.2-0.3 mm;
blades 8-25 cm long, 2-4 mm wide, flat to involute, glabrous, sometimes viscid.
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.
20-35(42) cm long, 10-22 cm wide, broadly ovate, open, bases included in the uppermost leaf sheaths;
primary branches 5-14 cm, diverging 20-90° from the rachises, capillary, sometimes viscid, naked basally;
pulvini hairy, hairs to 6 mm;
pedicels (1)1.5-12 mm, diverging or appressed.
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.
(2.5)3-4.8 mm long, 0.9-1.4 mm wide, linear-lanceolate, reddish-purple, with 4-9 florets;
disarticulation basipetal, 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.
lanceolate, membranous;
lower glumes 0.9-1.2 mm;
upper glumes 1-1.3 mm;
lemmas 1.1-1.4 mm, ovate to lanceolate, membranous, 3-veined, apices acute;
paleas 1-1.4 mm, hyaline, not wider than the lemmas, apices obtuse;
anthers 3, 0.2-0.3 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.
0.5-0.6 mm, ellipsoid, terete in cross section, neither ridged nor grooved, faintly striate, reddish-brown.
= 40, 60.
= unknown.
Eragrostis lehmanniana
Eragrostis silveana
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 silveana grows in various open habitats, from sandy prairies to clay loam flats, near roadsides, railroads, and fields at 0-100 m. Its range is limited to the coastal plain of Texas and northern Mexico. Morphologically, E. silveana is somewhat intermediate between E. spectabilis and E. curtipedicellata, and grows where the distribution of these two species overlaps.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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