Eragrostis pilosa
Eragrostis intermedia
eragrostide poilue, India lovegrass, Indian love grass
plains lovegrass
8-45(70) cm, erect or geniculate, glabrous, occasionally with a few glandular depressions.
(30)40-90(110) cm, erect, glabrous below the nodes.
mostly glabrous, occasionally glandular, apices hirsute, hairs to 3 mm;
ligules 0.1-0.3 mm, ciliate;
blades 2-15(20) cm long, 1-2.5(4) mm wide, flat, abaxial surfaces glabrous, occasionally with glandular pits along the midrib, adaxial surfaces scabridulous.
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.
4-20(28) cm long, 2-15(18) cm wide, ellipsoid to ovoid, diffuse;
primary branches 1-10 cm, diverging 10-80°(110°) from the rachises, capillary, whorled on the lowest 2 nodes, rarely glandular;
pulvini glabrous or hairy;
pedicels 1-10 mm, flexible, appressed or divergent.
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.
(2)3.5-6(10) mm long, 0.6-1.4 mm wide, linear-oblong to narrowly ovate, plumbeous, with (3)5-17 florets;
disarticulation acropetal, paleas tardily deciduous, rachillas persisting longer than the paleas.
3-7 mm long, 1-1.8 mm wide, narrowly lanceolate, olivaceous to purplish, with (3)5-11 florets;
disarticulation acropetal, paleas persistent.
narrowly ovate to lanceolate, hyaline;
lower glumes 0.3-0.6(0.8) mm;
upper glumes 0.7-1.2(1.4) mm;
lemmas 1.2-1.8(2) mm, ovate-lanceolate, membranous to hyaline, grayish-green proximally, reddish-purple distally, lateral veins inconspicuous, apices acute;
paleas 1-1.6 mm, membranous to hyaline, keels scabridulous to scabrous, apices obtuse;
anthers 3, 0.2-0.3 mm, purplish.
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.
0.5-1 mm, obovoid to prism-shaped, adaxial surfaces flat, smooth to faintly striate, light brown.
0.5-0.9 mm, rectangular-prismatic, somewhat laterally compressed, with a well-developed adaxial groove, striate, opaque, reddish-brown.
= 40.
= ca. 54, 60, 72, ca. 74, 80, 100, 120.
Eragrostis pilosa
Eragrostis intermedia
Eragrostis pilosa is native to Eurasia but has become naturalized in many parts of the world. In the Flora region, it grows in forest margins and disturbed sites such as roadsides, railroad embankments, gardens, and cultivated fields, at 0-2500 m.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
1. Plants with numerous glandular pits scattered over the whole plant, especially on the midribs of the sheaths and blades; lemmas 1.8-2 mm long | var. perplexa |
1. Plants with a few glandular pits scattered on the culms or without any glandular pits; lemmas 1.2-1.8 mm long | var. pilosa |
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