Eragrostis frankii
Eragrostis prolifera
sandbar lovegrass, éragrostide de Frank
Dominican lovegrass
10-50 cm, erect to geniculate, glabrous, often with glandular pits below the nodes.
85-130(150) cm, stiffly erect, glabrous below the nodes.
mostly glabrous, apices hirsute, hairs to 4 mm, often also with glandular pits;
ligules 0.2-0.5 mm, ciliate;
blades (2)4-10(21) cm long, 1-4 mm wide, flat to involute, glabrous abaxially, scabridu-lous adaxially.
glabrous or hairy at the apices, hairs to 4 mm;
ligules 0.1-0.2 mm;
blades 25-50 cm long, 1.5-6 mm wide, flat to involute, glabrous abaxially, scabridulous adaxially, sometimes also with a few scattered hairs near the base.
4-20 cm long, less than 1/2 the height of the plants, 2-10(14) cm wide, narrowly elliptic, open;
primary branches 2-6 cm, compact, diverging 20-70° from the rachises, capillary, sometimes with glandular pits, naked basally;
pulvini glabrous;
pedicels 1.5-5 mm, divergent.
(10)20-50(60) cm long, 2-8(10) cm wide, narrowly ovate, contracted to open;
primary branches mostly 2-14 cm, appressed or diverging up to 50°(90°) from the rachises, spikelets congested near the base of the branches;
pulvini glabrous;
pedicels 0.3-2.4 mm, appressed, always shorter than the spikelets.
(1.7)2-4(5.6) mm long, 1-2(2.5) mm wide, broadly ovate to lanceolate, plumbeous to reddish-purple, with 3-6 florets;
disarticulation acropetal, paleas persistent.
3.2-10(12) mm long, 0.7-1.4 mm wide, linear-lanceolate, stramineous to plumbeous, sometimes with a reddish tinge, with (5)8-25 florets;
disarticulation acropetal, glumes first, then the lemmas, paleas persistent.
narrowly lanceolate to lanceolate, hyaline;
lower glumes 1-1.5 mm;
upper glumes 1-1.8 mm;
lemmas 1.1-1.6 mm, broadly ovate, membranous, lateral veins inconspicuous, apices acute;
paleas 1-1.5 mm, hyaline, keels scabridulous, apices obtuse;
anthers 2 or 3, 0.2-0.3 mm, purplish.
subequal, ovate to lanceolate, hyaline;
lower glumes 1-1.5 mm;
upper glumes 1.1-1.6 mm;
lemmas 1.1-1.8(2) mm, ovate, membranous, apices acute;
paleas 0.8-1.7 mm, hyaline, narrower than the lemmas, apices obtuse to truncate;
anthers 2, 0.2-0.3 mm, purplish.
0.4-0.7 mm, ovoid to rectangular-prismatic, striate, reddish-brown, adaxial surfaces flat or shallowly grooved, distal 2/3 opaque.
0.6-0.9 mm, ovoid, flattened ventrally, finely striate, reddish-brown.
= 40, 80.
= 40.
Eragrostis frankii
Eragrostis prolifera
Eragrostis frankii is native in the central and eastern United States, but it has been found, as an introduction, in southern Ontario, and appears to be increasingly common in the northeastern United States. It grows in moist meadows, along streams and sand bars, in forest openings, and along roadsides, at 5-1500 m, usually in association with Pinus, Quercus, Acer, and Fagus grandiflora. The record from Santa Fe County, New Mexico, is based on a specimen collected by Fendler in 1847; there are no other collections from the state. Fendler's specimens seem to represent either an accidental introduction that did not become established or a labeling error.
Eragrostis frankii is similar to E. capillaris, but differs in its frequent possession of glandular pits, its flat or more shallowly grooved caryopses, shorter pedicels, and glabrous sheath margins, and in having panicles that are usually less than half as long as the culms.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis prolifera grows on beaches, in brackish water, and along roadsides, at elevations below 5 m in Florida. Its range extends southward from Florida through Mexico and Central America to Colombia.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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