Eragrostis frankii
Eragrostis elongata
sandbar lovegrass, éragrostide de Frank
long lovegrass
10-50 cm, erect to geniculate, glabrous, often with glandular pits below the nodes.
28-60 cm, erect to decumbent, 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, 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.
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.
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.
(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.
3-7 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.
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, 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.
0.4-0.7 mm, ovoid to rectangular-prismatic, striate, reddish-brown, adaxial surfaces flat or shallowly grooved, distal 2/3 opaque.
0.4-0.5 mm, ovoid, not grooved, smooth, light brown.
= 40, 80.
= unknown.
Eragrostis frankii
Eragrostis elongata
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 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.)
Go Botany
IL Wildflowers
KS Wildflowers
MD Biodiversity
MI Flora
MN Wildflowers
MO Plants
WildflowerSearch
iNaturalist
USDA Plants Database
