Eragrostis barrelieri

Daveau
Common names: Mediterranean lovegrass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 83.

Plants annual; tufted, without innovations. Culms (5) 10-60 cm, erect or decumbent, much-branched near the base, with a ring of glandular tissue below the nodes, rings often shiny or yellowish. Sheaths hairy at the apices, hairs to 4 mm; ligules 0.2-0.5 mm, ciliate; blades 1.5-10 cm long, 1-3 (5) mm wide, flat, abaxial surfaces glabrous, adaxial surfaces glabrous, sometimes scabridulous, occasionally with white hairs to 3 mm, margins without crateriform glands. Panicles 4-20 cm long, 2.2-8 (10) cm wide, ovate, open to contracted, rachises with shiny or yellowish glandular spots or rings below the nodes; primary branches 0.5-6 cm, diverging 20-100° from the rachises; pulvini glabrous; pedicels 1-4 mm, stout, stiff, divergent, without glandular bands. Spikelets 4-7 (11) mm long, 1.1-2.2 mm wide, narrowly ovate, reddish-purple to greenish, occasionally grayish, with 7-12 (20) florets; disarticulation acropetal, paleas persistent. Glumes broadly ovate, membranous, 1-veined; lower glumes 0.9-1.4 mm; upper glumes 1.2-1.6 mm; lemmas 1.4-1.8 mm, broadly ovate, membranous, apices acute to obtuse; paleas 1.3-1.7 mm, hyaline, keels scabrous, scabridities to 0.1 mm, apices obtuse to acute; anthers 3, 0.1-0.2 mm, reddish-brown. Caryopses 0.4-0.7 mm, ellipsoid, not grooved, smooth to faintly striate, light-brown. 2n = 40.

Distribution

Md., Kans., Okla., Colo., N.Mex., Tex., La., Utah, Calif., Puerto Rico, Virgin Islands, Ala., Nebr., Tenn., S.C., Mass., Ariz., Fla., Mo., Nev.

Discussion

Eragrostis barrelieri is a European species that is now naturalized in the Flora region, primarily in the south-western United States. It grows on gravelly roadsides, in gardens, and other disturbed, sandy sites, especially near railroad yards, at 10-2000 m. The ring of glandular tissue is most conspicuous below the upper cauline nodes.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis barrelieri"
reddish-brown +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Obtuse (?) +  and Acute (?) +
Paul M. Peterson +
Daveau +
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 +
1.5 cm15 mm <br />0.015 m <br /> (10 cm100 mm <br />0.1 m <br />) +
pubescent +  and glabrous +
involute +, folded +  and flat +
1mm;3mm +
not disarticulating +
not spikelike +
pubescent +  and glabrous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Mediterranean lovegrass +
much-branched +
decumbent +  and erect +
geniculate +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
not woody +
Md. +, Kans. +, Okla. +, Colo. +, N.Mex. +, Tex. +, La. +, Utah +, Calif. +, Puerto Rico +, Virgin Islands +, Ala. +, Nebr. +, Tenn. +, S.C. +, Mass. +, Ariz. +, Fla. +, Mo. +  and Nev. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
7 +  and 12 +
round +  and compressed +
reduced +
crateriform +
persistent +  and deciduous +
shorter or longer +
subtending +
membranous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
(1)3(5)-veined +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 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 +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
4cm +  and 20cm +
2.2 cm22 mm <br />0.022 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
dry +  and fleshy +
0.5 cm5 mm <br />0.005 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spikelike +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
Introduced +
grayish +, reddish-purple +  and greenish +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 +  and 60 +
1.1mm +  and 2.2mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Eragrostis barrelieri +
Eragrostis +
species +
membranous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
7 +  and 13 +
rhizomatous +  and stoloniferous +
aquatic +  and terrestrial +
dioecious +  and synoecious +