Eragrostis lugens
Eragrostis setifolia
mourning lovegrass
neverfail lovegrass
30-70 cm, erect, sometimes geniculate, glabrous below the nodes.
12-60 cm, erect, glabrous or hairy near the base, often shiny below the nodes.
usually mostly glabrous, summits hairy, hairs 2-5 mm, never papillose-based;
ligules 0.2-0.3 mm;
blades (4)8-22 cm long, 1-3.5 mm wide, involute to flat, both surfaces glabrous, margins sometimes with scattered hairs, hairs to 7 mm.
glabrous, summits shortly pilose, hairs to 0.5 mm;
ligules 0.3-0.5 mm, ciliate;
blades 3-11 cm long, 0.7-2 mm wide, involute or flat, glabrous abaxially, scabridulous adaxially.
16-28 cm long, 10-21 cm wide, ovate, open;
primary branches 0.6-15 cm, diverging up to 100° from the rachises, naked basally;
pulvini hairy;
pedicels 1.4-5(7) mm, diverging, wiry, present on all spikelets.
6-11 cm long, 2-4 cm wide, narrowly ovate, loosely contracted;
primary branches 1-3 cm, compact, appressed or diverging to 30° from the rachises, sometimes naked near the base;
pulvini glabrous;
pedicels 0.2-3 mm, diverging, scabridulous.
2-4.5(5) mm long, 0.5-1(1.3) mm wide, narrowly lanceolate, plumbeous to reddish-purple, with 2-7 florets;
disarticulation acropetal, paleas persistent.
3-6(15) mm long, 1.3-2 mm wide, linear lanceolate, stramineous, with 9-30 florets;
disarticulation irregular or basipetal, paleas persistent.
broadly ovate to narrowly lanceolate, hyaline, sometimes reddish-purple;
lower glumes 0.6-1 mm;
upper glumes 1.1-1.4 mm, usually broader than the lower glumes;
lemmas 1.2-1.8 mm, broadly ovate, mostly membranous but the distal margins hyaline, lateral veins inconspicuous, apices acute;
paleas 1.1-1.7 mm, membranous to hyaline, apices obtuse;
anthers 3, 0.2-0.7 mm, reddish-purple.
subequal, 1-1.3 mm, ovate, membranous, apices obtuse to acute;
lemmas 1.4-1.6 mm, ovate, membranous, glabrous, lateral veins conspicuous, green, sometimes obscure towards the apices, apices obtuse;
paleas 1.4-1.6 mm, hyaline, apices truncate, ciliolate;
anthers 3, 0.5-0.8 mm, yellowish.
0.5-0.6 mm, obovoid to somewhat prism-shaped, terete to somewhat laterally compressed, sometimes with a weak adaxial groove, finely striate, usually opaque, faintly reddish-brown to whitish.
0.4-0.5 mm, oblong-ellipsoid, strongly dorsally compressed, usually with a shallow dorsal groove, smooth to finely striate, mostly light brown, bases often greenish.
= 40, 80, ca. 108.
= unknown.
Eragrostis lugens
Eragrostis setifolia
Eragrostis lugens grows on sandy dunes and along river banks, at 1-300 m. Its range extends from the southern United States to Peru and Argentina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis setifolia is an Australian species that was collected around the Santee Wool Combing Mill, Jamestown, Berkeley County, South Carolina, in 1958. It is not known to have spread from that location. There is no illustration of the species because it was a late addition to the treatment. For digital images, see http://herbarium.usu.edu/webmanual/.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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