Eragrostis bahiensis
Eragrostis lugens
bahia lovegrass
mourning lovegrass
25-95(110) cm, erect, glabrous.
30-70 cm, erect, sometimes geniculate, glabrous below the nodes.
glabrous, summits hairy, hairs 1-3 mm;
ligules 0.2-0.4 mm;
blades (8)12-40 cm long, 2-5 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces scabridulous and glabrous or long ciliate basally.
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.
terminal, 15-30(45) cm long, (4)8-17 cm wide, narrowly ovate, open to contracted;
primary branches 5-15 cm, diverging 20-90° from the rachises, often capillary, usually naked basally;
pulvini glabrous;
pedicels 0.3-6 mm, mostly appressed, scabridulous, always shorter than the spikelets.
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.
6-15(18) mm long, 1.3-2(2.2) mm wide, narrowly lanceolate, plumbeous, occasionally with a reddish-purple tinge, with 8-30(40) florets;
disarticulation usually in the rachilla below the florets, occasionally the lemmas falling separately, leaving the paleas on the rachilla.
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.
lanceolate to ovate, membranous to subhyaline, keeled;
lower glumes 1-1.4 mm;
upper glumes 1.4-1.7 mm;
lemmas 1.5-2.2 mm, broadly ovate, leathery, scabridulous, lateral veins evident, apices acute;
paleas 1.4-2.1 mm, hyaline, bases not projecting beyond the lemmas, keels scabridulous, apices acute to obtuse;
anthers 2, 0.4-0.6 mm, reddish-purple.
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.
0.6-0.8 mm, obovoid to ellipsoid, terete, somewhat striate, reddish-brown.
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.
= unknown.
= 40, 80, ca. 108.
Eragrostis bahiensis
Eragrostis lugens
Eragrostis bahiensis grows in sandy soils near river banks, lake shores, and roadsides, at 0-200 m. Its range extends south from the Gulf Coast of the United States through Mexico to Peru, Bolivia, Paraguay, and Argentina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
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