Eragrostis hypnoides

(Lam.) Britton, Sterns & Poggenb.
Common names: Teel lovegrass Éragrostide hypnoide
Synonyms: Eragrostis weigeltiana
Treatment appears in FNA Volume 25. Treatment on page 72.

Plants annual; stoloniferous, mat-forming, without innova¬tions, without glands. Culms decumbent and rooting at the lower nodes, erect portion (2) 5-12 (20) cm, often branched, glabrous or hairy on the lower internodes. Sheaths pilose on the margins, collars, and at the apices, hairs 0.1-0.6 mm; ligules 0.3-0.6 mm; blades 0.5-2.5 cm long, 1-2 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces appressed-pubescent, hairs about 0.2 mm. Panicles terminal and axillary, 1-3.5 cm long, 0.7-2.5 cm wide, ovate, open to somewhat congested; primary branches 0.1-0.5 cm, appressed to strongly divergent, glabrous; pulvini sparsely pilose or glabrous; pedicels 0.2-1 mm, ciliate. Spikelets 4-13 mm long, 1-1.5 mm wide, linear-oblong, often arcuate, loosely imbricate, greenish-yellow to purplish, with 12-35 florets; disarticulation acropetal, paleas persistent. Glumes linear-lanceolate to lanceolate, hyaline; lower glumes 0.4-0.7 mm; upper glumes 0.8-1.2 mm; lemmas 1.4-2 mm, ovate, strongly 3-veined, veins greenish, apices acuminate; paleas 0.7-1.2 mm, hyaline, keels scabridulous, apices acute to obtuse; anthers 2, 0.2-0.3 mm, brownish. Caryopses 0.3-0.5 mm, ellipsoid, some¬what translucent, light-brown. 2n = 20.

Distribution

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

Discussion

Eragrostis hypnoides grows along muddy or sandy shores of lakes and rivers and in moist, disturbed sites, at 10-1600 m. It is native to the Americas, extending from southern Canada to Argentina.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis hypnoides"
appressed-pubescent +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
acute +  and obtuse +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Paul M. Peterson +
(Lam.) Britton, Sterns & Poggenb. +
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 +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
pubescent +  and glabrous +
flat +  and involute +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not disarticulating +
not spikelike +
pubescent +  and glabrous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Teel lovegrass +  and Éragrostide hypnoide +
geniculate +
2 cm20 mm <br />0.02 m <br /> (160 cm1,600 mm <br />1.6 m <br />) +
not woody +
Minn. +, Conn. +, N.J. +, N.Y. +, Wash. +, Va. +, Wis. +, Del. +, D.C. +, Man. +, Ont. +, Que. +, Sask. +, W.Va. +, Fla. +, Wyo. +, N.H. +, N.Mex. +, Tex. +, La. +, Tenn. +, N.C. +, S.C. +, Pa. +, Nev. +, Puerto Rico +, Colo. +, Calif. +, Ala. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Vt. +, Ill. +, Ga. +, Ind. +, Iowa +, Idaho +, Maine +, Md. +, Mass. +, Ohio +, Utah +, Mo. +, Mich. +, Mont. +, Miss. +, Ky. +  and Oreg. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
12 +  and 35 +
round +  and compressed +
reduced +
persistent +  and deciduous +
shorter or longer +
subtending +
linear-lanceolate +  and lanceolate +
uncinate +
0.2 cm2 mm <br />0.002 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
scabridulous +
not absent +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
sometimes longer +
ciliate +  and ciliolate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
membranous +
inconspicuous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
open to somewhat +
1cm +  and 3.5cm +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
dry +  and fleshy +
2 cm20 mm <br />0.02 m <br /> (?) +
hairy +  and glabrous +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glabrous +  and pilose +
spikelike +
greenish-yellow +  and purplish +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
1 +  and 60 +
linear-oblong +
1mm +  and 1.5mm +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Eragrostis weigeltiana +
Eragrostis hypnoides +
Eragrostis +
species +
membranous +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
7 (?) +  and 13 (?) +
plant +  and mat-forming +
aquatic +  and terrestrial +
dioecious +  and synoecious +