Eragrostis minor

Host
Common names: Little lovegrass Eragrostide faux-paturin
Introduced
Synonyms: Eragrostis poaeoides
Treatment appears in FNA Volume 25. Treatment on page 85.

Plants annual; tufted, without innovations. Culms 10-45 cm, erect to decumbent, sometimes with a ring of glandular tissue below the nodes. Sheaths sometimes glandular on the midveins, hairy at the apices, hairs to 4 mm; ligules 0.2-0.5 mm, ciliate; blades 1.5-10 cm long, 1-3 (4) mm wide, flat, glabrous or sparsely white-hairy, margins sometimes with crateriform glands. Panicles 4-20 cm long, 2.2-8 (10) cm wide, ovate, open to contracted, rachises sometimes with glandular spots or pits below the nodes, rarely with a glandular ring, glands usually dull, greenish-gray to stramineous; primary branches 0.5-6 cm, diverging 20-100° from the rachises; pulvini glabrous or hairy; pedicels 1-4 mm, stiff, straight, divergent, usually with a distal ring of crateriform glands. Spikelets 4-7 (11) mm long, 1.1-2.2 mm wide, narrowly ovate, mostly reddish-purple to greenish, occasionally grayish, with 7-12 (20) florets; disarticulation acropetal, paleas persistent. Glumes broadly ovate, membranous; lower glumes 0.9-1.4 mm; upper glumes 1.2-1.6 mm; lemmas 1.4-1.8 mm, broadly ovate, membranous, keels occasionally with 1-2 crateriform glands, apices acute to obtuse; paleas 1.3-1.7 mm, hyaline, keels smooth or scabridulous, scabridities to 0.1 mm, apices obtuse to acute; anthers 2, 0.2-0.3 mm, reddish-brown. Caryopses 0.4-0.7 mm, ellipsoid, not grooved, striate, light-brown. 2n = 40.

Distribution

Wash., Del., D.C., Wis., W.Va., Conn., Mass., Maine, N.H., R.I., Vt., Fla., Wyo., N.J., Tex., La., Nebr., Tenn., N.C., S.C., Pa., N.Y., Nev., Va., Colo., Md., Calif., Ala., Ark., Ill., Ga., Ind., Iowa, B.C., N.B., N.S., Ont., P.E.I., Que., Sask., Idaho, Mont., Oreg., Kans., Okla., Ohio, Utah, Mo., Minn., Mich., Miss., Ky., S.Dak.

Discussion

Eragrostis minor is a European species that now grows in gravelly roadsides and disturbed sites, especially near railroad yards, at 20-1600 m in southern Canada and the contiguous United States.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis minor"
reddish-brown +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Obtuse (?) +  and Acute (?) +
Paul M. Peterson +
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 />) +
white-hairy +  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 +
Little lovegrass +  and Eragrostide faux-paturin +
branched +, simple +  and rooting +
erect +  and decumbent +
geniculate +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
not woody +
Wash. +, Del. +, D.C. +, Wis. +, W.Va. +, Conn. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, N.J. +, Tex. +, La. +, Nebr. +, Tenn. +, N.C. +, S.C. +, Pa. +, N.Y. +, Nev. +, Va. +, Colo. +, Md. +, Calif. +, Ala. +, Ark. +, Ill. +, Ga. +, Ind. +, Iowa +, B.C. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Idaho +, Mont. +, Oreg. +, Kans. +, Okla. +, Ohio +, Utah +, Mo. +, Minn. +, Mich. +, Miss. +, Ky. +  and S.Dak. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
7 +  and 12 +
round +  and compressed +
reduced +
greenish-gray;stramineous +
crateriform +
persistent +  and deciduous +
shorter or longer +
subtending +
membranous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
scabridulous +  and smooth +
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 />) +
hairy +  and glabrous +
spikelike +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
Introduced +
grayish +, mostly 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 (?) +
Eragrostis poaeoides +
Eragrostis minor +
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 +