Eragrostis ciliaris
Eragrostis japonica
gophertail lovegrass
pond lovegrass
(3)9-75 cm, erect or geniculate in the lower portion, not rooting at the lower nodes, glabrous.
25-100(115) cm, erect or geniculate, lower portion glabrous and shiny.
hairy on the margins and at the apices, hairs to 4 mm;
ligules 0.2-0.5 mm;
blades 1.8-12(15) cm long, 2-5 mm wide, usually flat, occasionally involute, glabrous or ciliate basally.
glabrous at the apices and on the upper margins;
ligules 0.4-0.6 mm, scarious, glabrous;
blades (4)15-20(25) cm long, 1.5-6 mm wide, flat, sometimes auriculate, abaxial surfaces glabrous, smooth, adaxial surfaces scabridulous, Panicles 15-40 cm long, 0.8-5 cm wide, lanceoloid, contracted, interrupted near the base;
primary branches 2-10 cm, appressed or diverging to 30° from the rachises, spikelet-bearing to near the base;
pulvini glabrous;
pedicels 0.5-1.5 mm, sinuous.
1.7-15 cm long, 0.2-5 cm wide, cylindrical, contracted or open, branches usually forming glomerate lobes, sometimes more open, often interrupted in the lower portion;
primary branches 0.4-4 cm, appressed or diverging to 50° from the rachises;
pulvini usually glabrous, occasionally sparsely pilose;
pedicels 0.1-1 mm, erect, shorter than the spikelets, glabrous.
1.8-3.2 mm long, 1-2 mm wide, elliptical-ovate to ovate-lanceolate, yellowish-brown, sometimes with a purple tinge, with 6-11 florets;
disarticulation basipetal, glumes peristent.
2.2-3.8 mm long, 0.8-1.3 mm wide, oblong to narrowly lanceolate, yellowish-brown to whitish and hyaline, with 4-12 florets;
disarticulation basipetal, rachillas and glumes persistent.
ovate to lanceolate, keels scabridulous, veins commonly green, apices acute;
lower glumes 0.7-1.2 mm;
upper glumes 1-1.6 mm;
lemmas 0.8-1.3 mm, elliptical-ovate to lanceolate, membranous, keels scabridulous, lateral veins evident, apices obtuse to acute;
paleas 0.8-1.3 mm, membranous, keels prominently ciliate, cilia 0.2-0.8 mm, apices obtuse to acute;
anthers 2, 0.1-0.3 mm, purplish.
subequal, 0.6-1 mm, ovate to ovate-lanceolate, hyaline;
upper glumes without a midvein;
lemmas 0.9-1.2 mm, ovate, hyaline, lateral veins conspicuous basally, greenish, apices acute;
paleas 0.6-0.8 mm, hyaline, keels smooth basally, scabridulous distally, apices acute, often bifid;
anthers 2, 0.1-0.2 mm, whitish to light brown.
0.4-0.5 mm, ovoid, reddish-brown.
0.3-0.4 mm, obovoid, smooth, reddish-brown.
= 20, 40.
= 20.
Eragrostis ciliaris
Eragrostis japonica
Eragrostis ciliaris is native to the paleotropics. It is naturalized in parts of the United States, growing along roadsides, on waste sites, in xerothermic vegetation, and sometimes in saline habitats, at 0-200 m. It may be more widespread than indicated.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis japonica is native to the tropics of the Eastern Hemisphere; it is now established in moist areas along rivers and streams in the southern portion of the contiguous United States, usually in sandy soils, at 0-200 m.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Panicles 0.2-1.5 cm wide, contracted, the branches mostly appressed to the rachises, congested, forming glomerate lobes; spikelets densely packed | var. ciliaris |
1. Panicles 1.5-5 cm wide, open, the branches spreading 20-50° from the rachises; spikelets widely separated from each other | var. laxa |
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