Eragrostis pilosa
Eragrostis hirsuta
eragrostide poilue, India lovegrass, Indian love grass
bigtop lovegrass
8-45(70) cm, erect or geniculate, glabrous, occasionally with a few glandular depressions.
(30)45-100 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.
rarely glabrous, apices and distal margins usually hairy, sometimes also densely hairy basally, dorsally, and on the collars, hairs to 6 mm, papillose-based;
ligules 0.2-0.4 mm;
blades 25-60 cm long, 3-8(11) mm wide, flat to loosely involute, usually glabrous, adaxial surfaces sometimes hairy basally.
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.
25-85 cm long, 15-40 cm wide, broadly ovate, open;
primary branches mostly 4-35(45) cm, diverging 20-90° from the rachises, capillary;
pulvini glabrous or hairy;
pedicels 2-28 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.
2-4(5) mm long, 1-1.7 mm wide, lanceolate, greenish with purplish tinges, with 2-6 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, hyaline to membranous;
lower glumes 1.1-2 mm;
upper glumes 1.5-2.8 mm, apices acuminate to acute;
lemmas 1.6-2.4 mm, ovate, membranous, hyaline near the margins, lateral veins inconspicuous, apices acute;
paleas 1.2-2.2 mm, hyaline, bases not projecting beyond the lemmas, apices acute to obtuse;
anthers 3, 0.3-0.8 mm, purplish.
0.5-1 mm, obovoid to prism-shaped, adaxial surfaces flat, smooth to faintly striate, light brown.
0.8-1 mm, rectangular-prismatic, somewhat laterally compressed, with or without a well-developed adaxial groove, striate, opaque, reddish-brown.
= 40.
= 100.
Eragrostis pilosa
Eragrostis hirsuta
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 hirsuta grows in sandy clay loams on the coastal plain and along roadsides, at 0-150 m, usually in association with Pinus palustris and Quercus. Its range extends from the southeastern United States through eastern Mexico to Guatemala and Belize.
(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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