Eragrostis trichodes
Eragrostis polytricha
sand lovegrass
hairysheath lovegrass
30-120 (160) cm, erect, glabrous and non-glandular below the nodes.
30-62 cm, erect, glabrous and shiny below the nodes.
sometimes villous along the margins, apices hairy, hairs to 5 mm;
ligules 0.3-0.5 mm;
blades 15-46(65) cm long, 1.5-8 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces scabridulous, sometimes also pilose on the basal 1/4, hairs to 4 mm.
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.
30-80 cm long, 6-30 cm wide, oblong to ovoid, diffuse;
primary branches 2-35 cm, diverging 20-90° from the rachises, naked basally;
pulvini hairy or glabrous;
pedicels 2-22 cm, diverging, capillary.
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.
3-15 mm long, 1.5—3.6 mm wide, ovate to lanceolate, greenish-yellow with a reddish-purple tinge, with (2)4-18 florets;
disarticulation acropetal, paleas persistent.
(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.
subequal, 1.8-4 mm, narrowly ovate to linear-lanceolate, membranous, apices acuminate;
upper glumes as long as or longer than the basal lemmas;
lemmas 2.2-3.5 mm, broadly ovate to lanceolate, membranous, strongly keeled, keels not glandular, lateral veins conspicuous, apices acute;
paleas 1.8-2.8 mm, hyaline, narrower than the lemmas, keels ciliolate, apices obtuse to truncate;
anthers 3, 1-1.6 mm, purplish.
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.
0.8-1.3 mm, rectangular-prismatic, somewhat laterally compressed, with a wide, deep adaxial groove, faintly striate, opaque, dark reddish-brown.
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.
= 40.
= 60, 80.
Eragrostis trichodes
Eragrostis polytricha
Eragrostis trichodes grows in sandy to gravelly prairies, open sandy woods, rocky slopes, and roadsides, at 100-2150 m, often in associations with Quercus marilandica, Q. stellata, Juniperus, and Redfieldia flexuosa. It is endemic to the contiguous United States, and is available commercially as an ornamental. Records from outside the primary range probably reflect introductions.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
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