Eragrostis cilianensis

(All.) Vignolo ex Janch
Common names: Stinkgrass Éragrostide fétide
Introduced
Synonyms: Eragrostis megastachya Eragrostis major
Treatment appears in FNA Volume 25. Treatment on page 83.

Plants annual; tufted, without innovations. Culms 15-45 (65) cm, erect or decumbent, some¬times with crateriform glands below the nodes. Sheaths glabrous, occasionally glandular, apices hairy, hairs to 5 mm; ligules 0.4-0.8 mm, ciliate; blades (1) 5-20 cm long, (1) 3-5 (10) mm wide, flat to involute, abaxial surfaces glabrous, sometimes glandular, adaxial surfaces scabridulous, occasionally also hairy. Panicles (3) 5-16 (20) cm long, 2-8.5 cm wide, oblong to ovate, condensed to open; primary branches 0.4-5 cm, appressed or diverging 20-80° from the rachises; pulvini glabrous or hairy; pedicels 0.2-3 mm, stout, straight, stiff, usually divergent, occasionally appressed. Spikelets 6-20 mm long, 2-4 mm wide, ovatelanceolate, plumbeous, greenish, with 10-40 florets; disarticulation below the florets, each floret falling as a unit, rachillas persistent. Glumes broadly ovate to lanceolate, membranous, usually glandular; lower glumes 1.2-2 mm, usually 1-veined; upper glumes 1.2-2.6 mm, often 3-veined; lemmas 2-2.8 mm, broadly ovate, membranous, keels with 1-3 crateriform glands, apices obtuse to acute; paleas 1.2-2.1 mm, hyaline, keels scabrous, sometimes also ciliate, cilia to 0.3 mm, apices obtuse to acute; anthers 3, 0.2-0.5 mm, yellow. Caryopses 0.5-0.7 mm, globose to broadly ellipsoid, smooth to faintly striate, not grooved, reddish-brown or translucent. 2n = 20.

Distribution

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

Discussion

Eragrostis cilianensis is an introduced European species that now grows in disturbed sites such as pastures and roadsides, at 0-2300 m, through most of the contiguous United States and southern Canada. The English name refers to the odor of fresh plants.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis cilianensis"
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Obtuse (?) +  and Acute (?) +
Paul M. Peterson +
(All.) Vignolo ex Janch +
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 +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
pubescent +  and glabrous +
flat +  and involute +
3mm;5mm +
not disarticulating +
not spikelike +
pubescent +  and glabrous +
translucent +  and reddish-brown +
smooth +  and faintly striate +
globose +  and broadly ellipsoid +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
membranous +
Stinkgrass +  and Éragrostide fétide +
branched +, simple +  and rooting +
decumbent +  and erect +
geniculate +
15 cm150 mm <br />0.15 m <br /> (45 cm450 mm <br />0.45 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, Wash. +, Mich. +, Del. +, D.C. +, Wis. +, W.Va. +, Pacific Islands (Hawaii) +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, N.Mex. +, Tex. +, La. +, Md. +, Tenn. +, N.C. +, S.C. +, Pa. +, Nev. +, Va. +, Colo. +, Alta. +, B.C. +, Man. +, N.S. +, Ont. +, Que. +, Sask. +, Calif. +, Ala. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Ill. +, Ga. +, Ind. +, Iowa +, Ariz. +, Idaho +, Mont. +, Oreg. +, Ohio +, Utah +, Mo. +, Minn. +, Miss. +  and Ky. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
10 +  and 40 +
round +  and compressed +
reduced +
crateriform +
persistent +  and deciduous +
shorter or longer +
subtending +
broadly ovate +  and lanceolate +
membranous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
(1)3(5)-veined +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
membranous +
sometimes longer +
ciliate +  and ciliolate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
membranous +
inconspicuous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
condensed +  and open +
5cm +  and 16cm +
oblong +  and ovate +
2 cm20 mm <br />0.02 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
dry +  and fleshy +
diverging;appressed +
0.4 cm4 mm <br />0.004 m <br /> (5 cm50 mm <br />0.05 m <br />) +
hairy +  and glabrous +
spikelike +
Introduced +
greenish +  and plumbeous +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 +  and 60 +
ovatelanceolate +
2mm +  and 4mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Eragrostis megastachya +  and Eragrostis major +
Eragrostis cilianensis +
Eragrostis +
species +
membranous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
7 +  and 13 +
rhizomatous +  and stoloniferous +
aquatic +  and terrestrial +
dioecious +  and synoecious +