Eragrostis polytricha
Eragrostis gangetica
hairysheath lovegrass
slimflower lovegrass
30-62 cm, erect, glabrous and shiny below the nodes.
(12)25-75 cm, usually erect, sometimes geniculate and branched below, glabrous, reddish.
sometimes densely pilose dorsally and on the collars, margins and apices hairy, hairs to 5 mm;
ligules 0.2-0.4 mm;
blades 5-20(33) cm long, 1-3.5 mm wide, involute to flat, both surfaces with scattered hairs, adaxial surfaces densely hairy behind the ligules, hairs to 7 mm.
glabrous, apices usually with 0.3-2.2 mm hairs;
ligules 0.2-0.4 mm, ciliate;
blades (5)7-17 cm long, 1-3 mm wide, flat to folded basally, involute apically, abaxial surfaces glabrous, adaxial surfaces scabridulous, sometimes with scattered hairs near the base.
15-25 cm long, 5-27 cm wide, ovate, open;
primary branches 0.6-15 cm, diverging up to 90° from the rachises, capillary, naked basally;
pulvini hairy, hairs to 8 mm;
pedicels 1.4-10(16) mm, divergent.
(6)11-21 cm long, 1-13 cm wide, ovate to somewhat contracted, open;
primary branches 0.5-12 cm, (12)15-20 per culm, appressed or diverging up to 60° from the rachises, often capillary, naked near the base;
pulvini glabrous;
pedicels 0.3-5 mm, mostly appressed.
(2.5)3-5 mm long, 1.1-1.6 mm wide, narrowly lanceolate to linear-oblong, plumbeous, with 4-9 florets;
disarticulation acropetal, paleas persistent.
2-4.6 mm long, 0.9-2 mm wide, narrowly ovate, greenish-yellow to plumbeous and with a reddish-purple tinge, with 5-15 florets;
disarticulation acropetal, paleas persistent.
broadly ovate to narrowly lanceolate, hyaline to membranous;
lower glumes 1.1-1.6 mm;
upper glumes 1.2—1.8 mm;
lemmas 1.2-1.8 mm, broadly ovate, membranous throughout, lateral veins inconspicuous, apices acute;
paleas 1.1-1.7 mm, membranous to hyaline, narrower than the lemmas, apices obtuse;
anthers 3, 0.3—0.5 mm, reddish-purple.
lanceolate to ovate, membranous;
lower glumes 0.4-0.9 mm;
upper glumes 1-1.3 mm, occasionally 3-veined;
lemmas 1-1.3 mm, broadly ovate, membranous, often reddish-purple, lateral veins conspicuous, often greenish, apices acute;
paleas 0.9-1.1 mm, hyaline, keels scabridulous, apices obtuse;
anthers 2, 0.1-0.2 mm, reddish-purple.
0.5-0.8 mm, obovoid to somewhat prism-shaped, laterally compressed, with a well-developed adaxial groove, finely striate, opaque to translucent, reddish-brown.
0.3-0.5 mm, subglobose to obovoid, not grooved, translucent, faintly striate, reddish-brown.
= 60, 80.
= 80.
Eragrostis polytricha
Eragrostis gangetica
Eragrostis polytricha grows in sandy and rocky areas, at 0-30 m, usually in open pinelands. It is native to Florida but its primary range lies to the south of the Flora region, from southern Mexico through Central America to Venezuela, Chile, and Argentina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis gangetica is an Asian species that now grows in the southeastern United States. It can be found in the sandy margins of ponds, roadsides, and ditches, at 0-100 m, usually in association with Pinus, Taxodium distichum, Rynchospora, and Steinchisma hians. Eragrostis gangetica is similar to E. bahiensis, but differs from that species in its annual habit and shorter spikelets, lemmas, anthers, and caryopses.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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