Eragrostis intermedia
Eragrostis plana
plains lovegrass
south African lovegrass
(30)40-90(110) cm, erect, glabrous below the nodes.
65-100 cm, erect, glabrous.
sparsely pilose on the margins, apices hairy, hairs to 8 mm, not papillose-based;
ligules 0.2-0.4 mm;
blades (4)10-20(30) cm long, 1-3 mm wide, flat or involute, abaxial surfaces glabrous, adaxial surfaces densely hairy behind the ligules, elsewhere usually glabrous, occasionally sparsely hairy.
flattened, smooth, shiny, glabrous or puberulent;
ligules 0.2-0.4 mm;
blades 15-50(70) cm long, 2-4 mm wide, folded, margins involute or revolute, abaxial surfaces glabrous or sparsely hairy, adaxial surfaces scabridulous.
15-40 cm long, (8.5)15-30 cm wide, ovate, open;
primary branches 4-25 cm, diverging 20-90° from the rachises, capillary;
pulvini hairy or glabrous;
pedicels 2-14 mm, divergent.
13-28 cm long, 2-8 cm wide, narrowly oblong to narrowly lanceolate, contracted to open;
primary branches 1-8 cm, appressed or diverging up to 30° from the rachises;
pulvini glabrous or hairy;
pedicels 1-7 mm, appressed, glabrous.
3-7 mm long, 1-1.8 mm wide, narrowly lanceolate, olivaceous to purplish, with (3)5-11 florets;
disarticulation acropetal, paleas persistent.
6-14 mm long, 1.3-2.5 mm wide, linear-oblong, greenish to plumbeous, with 9-14 florets;
disarticulation acropetal, paleas persistent.
lanceolate to ovate, hyaline to membranous;
lower glumes 1.1-1.7 mm, narrower than the upper glumes;
upper glumes 1.3-2 mm, apices acuminate to acute;
lemmas 1.6-2.2 mm, ovate, membranous, hyaline near the margins, lateral veins inconspicuous, apices acute;
paleas 1.4-2.1 mm, hyaline, narrower than the lemmas, apices obtuse to acute;
anthers 3, 0.5-0.8 mm, purplish.
narrowly ovate to lanceolate, membranous to hyaline;
lower glumes 0.4-1.2 mm, scalelike;
upper glumes 1-1.5 mm;
lemmas 1.8-3 mm, ovate, membranous, strongly keeled, keels with minute punctate glands, lateral veins conspicuous, apices acute to obtuse;
paleas 1.8-3 mm, hyaline to membranous, bases not projecting beyond the lemmas, apices obtuse to truncate;
anthers 3, 1.2-1.8 mm, reddish-purple.
0.5-0.9 mm, rectangular-prismatic, somewhat laterally compressed, with a well-developed adaxial groove, striate, opaque, reddish-brown.
1-1.6 mm, rectangular-prismatic to ovoid, laterally compressed, adaxial surfaces deeply grooved, smooth, opaque, reddish-brown.
= ca. 54, 60, 72, ca. 74, 80, 100, 120.
= 20.
Eragrostis intermedia
Eragrostis plana
Eragrostis intermedia grows in clay, sandy, and rocky soils, often in disturbed sites, at 0-1850 m. Its range extends from the United States through Mexico and Central America to South America. Eragrostis intermedia is similar to the more widespread E. lugens, but differs from that species in having wider spikelets, longer lemmas, and caryopses with a prominent adaxial groove.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis plana is native to southern Africa. It is known from two locations in the Flora region, both waste areas near sheep and cattle lots in Florence County, South Carolina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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