Eragrostis secundiflora
Eragrostis elongata
red lovegrass
long lovegrass
30-75 cm, erect, glabrous below.
28-60 cm, erect to decumbent, glabrous below the nodes.
mostly glabrous, hairy at the apices, hairs to 4 mm;
ligules 0.2-0.3 mm;
blades 10-25(40) cm long, 1-5 mm wide, involute, glabrous abaxially, scabridulous adaxially, sometimes also sparsely pilose.
glabrous, apices sparsely hairy, hairs to 2 mm;
ligules 0.3-0.4 mm;
blades 5-20 cm long, 0.8-3 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces scabridulous, occasionally hairy near the base.
(3)5-30 cm long, 1-15 cm wide, from narrowly oblong, glomerate, and interrupted below to ovate and open;
primary branches 0.5-12(16) cm, appressed or diverging up to 40° from the rachises, stiff;
pulvini glabrous or sparsely hairy;
pedicels 0-1(3) mm, appressed, flattened.
terminal, (5)8-20(22) cm long, 1-3.5 cm wide, spicate to narrowly ovate, branches condensed into glomerate lobes;
primary branches 0.8-3 cm, appressed or diverging up to 90° from the rachises, spikelet-bearing to the base;
pulvini glabrous;
pedicels 0.2-1.3 mm, flattened, mostly appressed, all shorter than the spikelets.
6-16(23) cm long, 2.4-5 mm wide, ovate to linear-elliptic, flattened, stramineous, with reddish-purple margins or completely reddish-purple, with 10-45 florets;
disarticulation basipetal, florets falling intact and before the glumes.
3-7 mm long, 1.8-2.4 mm wide, linear-lanceolate, stramineous with a reddish-purple tinge, with 8-18 florets;
disarticulation acropetal, glumes first, then the lemmas, paleas persistent.
ovate-lanceolate to lanceolate, membranous;
lower glumes 1.7-3 mm;
upper glumes 2.2-4 mm, apices acuminate;
lemmas 2-6 mm, ovate, membranous to leathery, apices usually acuminate or attenuate, sometimes acute;
paleas 1.5-3 mm, membranous to leathery, narrower than the lemmas, apices obtuse, sometimes bifid;
anthers 2, 0.2-0.5 mm, brownish.
subequal, 1.2-2 mm, narrowly lanceolate to lanceolate, membranous;
lemmas 1.5-2.2 mm, lanceolate to ovate, leathery, greenish, lateral veins conspicuous, apices acute;
paleas 1.1-1.7 mm, hyaline, narrower than the lemmas, keels ciliate, cilia to 0.2 mm, apices obtuse to acute;
anthers 2, 0.2-0.3 mm, purplish.
0.8-1.3 mm, ellipsoid, somewhat laterally flattened, smooth, reddish-brown.
0.4-0.5 mm, ovoid, not grooved, smooth, light brown.
= 40.
= unknown.
Eragrostis secundiflora
Eragrostis elongata
There are two subspecies of E. secundiflora; plants from the Flora region belong to E. secundiflora subsp. oxylepis (Torrey) S.D. Koch. They grow in sandy soils, dunes, grasslands, beaches, and roadsides of the southern United States and northern Mexico, at 0-1000 m. Eragrostis secundiflora J. Presl subsp. secundiflora grows in Mexico and Central and South America.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis elongata is native to southeastern Asia and Australia, where it grows in disturbed, sandy soils at 0-50 m. It was collected once near Washington, D.C., probably as an escape from the U.S. Department of Agriculture's experimental grass garden; it has not become established in the Flora region.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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