Eragrostis ciliaris

(L.) R. Br.
Common names: Gophertail lovegrass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 71.

Plants annual; tufted, without innovations, without glands. Culms (3) 9-75 cm, erect or geniculate in the lower portion, not rooting at the lower nodes, glabrous. Sheaths 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. Panicles 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. Spikelets 1.8-3.2 mm long, 1-2 mm wide, elliptical-ovate to ovatelanceolate, yellowish-brown, sometimes with a purple tinge, with 6-11 florets; disarticulation basipetal, glumes peristent. Glumes 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. Caryopses 0.4-0.5 mm, ovoid, reddish-brown. 2n = 20, 40.

Distribution

Puerto Rico, N.J., Ga., Tex., La., Virgin Islands, Ala., Pacific Islands (Hawaii), Miss., S.C., Fla.

Discussion

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.

Selected References

None.

Key

1 Panicles 0.2-1.5 cm wide, contracted, the branches mostly appressed to the rachises, congested, forming glomerate lobes; spikelets densely packed Eragrostis ciliaris var. ciliaris
1 Panicles 1.5-5 cm wide, open, the branches spreading 20-50° from the rachises; spikelets widely separated from each other Eragrostis ciliaris var. laxa

"decumbent" is not a number.

... more about "Eragrostis ciliaris"
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Obtuse (?) +  and Acute (?) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Paul M. Peterson +
(L.) R. Br. +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
not +  and glabrous +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
1.8 cm18 mm <br />0.018 m <br /> (12 cm120 mm <br />0.12 m <br />) +
ciliate +  and glabrous +
involute +, folded +  and flat +
2mm;5mm +
interrupted +  and open +
not spikelike +
pubescent +  and glabrous +
reddish-brown +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
membranous +
Gophertail lovegrass +
not rooting +
geniculate +
9 cm90 mm <br />0.09 m <br /> (75 cm750 mm <br />0.75 m <br />) +
not woody +
Puerto Rico +, N.J. +, Ga. +, Tex. +, La. +, Virgin Islands +, Ala. +, Pacific Islands (Hawaii) +, Miss. +, S.C. +  and Fla. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
6 +  and 11 +
round +  and compressed +
reduced +
persistent +  and deciduous +
shorter or longer +
subtending +
ovate +  and lanceolate +
uncinate +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
scabridulous +
not absent +
(1)3(5)-veined +
elliptical-ovate +  and lanceolate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
membranous +
sometimes longer +
ciliate +  and ciliolate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
membranous +
1.7cm +  and 15cm +
cylindrical +
0.2 cm2 mm <br />0.002 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
dry +  and fleshy +
diverging;appressed +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
pilose +  and glabrous +
spikelike +
Introduced +
yellowish-brown +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
1 +  and 60 +
elliptical-ovate +  and ovatelanceolate +
1mm +  and 2mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Eragrostis ciliaris +
Eragrostis +
species +
membranous +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
7 +  and 13 +
rhizomatous +  and stoloniferous +
aquatic +  and terrestrial +
dioecious +  and synoecious +