Eragrostis lugens
Eragrostis prolifera
mourning lovegrass
Dominican lovegrass
30-70 cm, erect, sometimes geniculate, glabrous below the nodes.
85-130(150) cm, stiffly erect, 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.
glabrous or hairy at the apices, hairs to 4 mm;
ligules 0.1-0.2 mm;
blades 25-50 cm long, 1.5-6 mm wide, flat to involute, glabrous abaxially, scabridulous adaxially, sometimes also with a few scattered hairs near the base.
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.
(10)20-50(60) cm long, 2-8(10) cm wide, narrowly ovate, contracted to open;
primary branches mostly 2-14 cm, appressed or diverging up to 50°(90°) from the rachises, spikelets congested near the base of the branches;
pulvini glabrous;
pedicels 0.3-2.4 mm, appressed, always shorter than the spikelets.
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.
3.2-10(12) mm long, 0.7-1.4 mm wide, linear-lanceolate, stramineous to plumbeous, sometimes with a reddish tinge, with (5)8-25 florets;
disarticulation acropetal, glumes first, then the lemmas, 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, ovate to lanceolate, hyaline;
lower glumes 1-1.5 mm;
upper glumes 1.1-1.6 mm;
lemmas 1.1-1.8(2) mm, ovate, membranous, apices acute;
paleas 0.8-1.7 mm, hyaline, narrower than the lemmas, apices obtuse to truncate;
anthers 2, 0.2-0.3 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.
0.6-0.9 mm, ovoid, flattened ventrally, finely striate, reddish-brown.
= 40, 80, ca. 108.
= 40.
Eragrostis lugens
Eragrostis prolifera
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 prolifera grows on beaches, in brackish water, and along roadsides, at elevations below 5 m in Florida. Its range extends southward from Florida through Mexico and Central America to Colombia.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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