Eragrostis lugens
Eragrostis cumingii
mourning lovegrass
Cuming's lovegrass
30-70 cm, erect, sometimes geniculate, glabrous below the nodes.
10-40(50) cm, erect to prostrate, sometimes geniculate, branching profusely from near the base, glabrous 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.
sparsely hairy at the apices, hairs to 2.5 mm;
ligules 0.1-0.2 mm;
blades 3-10(12) cm long, 1-3 mm wide, flat to involute, sparsely pilose on the basal 1/2, scabridulous distally.
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.
5-20 cm long, 2-8 cm wide, narrowly ovate, open, with 6-10 primary branches;
primary branches 1-6 cm, widely spaced, axes trigonous, diverging to 90° from the rachises, densely spikelet-bearing to the base;
pulvini sparsely pilose;
pedicels 0.4-1(2) mm, stout, straight, flattened.
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.
5-12(18) mm long, 1.4-2.4 mm wide, linear-lanceolate, chartaceous, stramineous to greenish with reddish-purple tinges, with 12-42 florets;
disarticulation acropetal.
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 in length, 1.2-1.9 mm, narrowly lanceolate to lanceolate, membranous;
lower glumes narrower than the upper glumes;
lemmas 1.3-2 mm, lanceolate to ovate, chartaceous, lateral veins conspicuous, greenish, apices acute;
paleas 1-1.6 mm, hyaline, keels ciliate, cilia 0.1-0.2 mm, apices obtuse to acute;
anthers 3, 0.1-0.2 mm, purplish.
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.
0.4-0.6 mm, ovoid, laterally compressed, finely striate, light brown.
= 40, 80, ca. 108.
= 40.
Eragrostis lugens
Eragrostis cumingii
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 cumingii is native to southeast Asia and Australia. Within the Flora region, it has become established in Florida, growing in waste places and along roadsides in sandy or gravelly soils, at 0-150 m.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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