Eragrostis secundiflora
Eragrostis gangetica
red lovegrass
slimflower lovegrass
30-75 cm, erect, glabrous below.
(12)25-75 cm, usually erect, sometimes geniculate and branched below, glabrous, reddish.
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 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.
(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.
(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.
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.
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.
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.
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.
0.8-1.3 mm, ellipsoid, somewhat laterally flattened, smooth, reddish-brown.
0.3-0.5 mm, subglobose to obovoid, not grooved, translucent, faintly striate, reddish-brown.
= 40.
= 80.
Eragrostis secundiflora
Eragrostis gangetica
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 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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