Eragrostis amabilis

(L.) Wight & Arn. ex Nees
Common names: Japanese lovegrass
Synonyms: Eragrostis tenella
Treatment appears in FNA Volume 25. Treatment on page 72.

Plants annual; cespitose, without innovations, without glands. Culms 5-40 cm, erect, glabrous, occasionally with oblong glandular areas below the nodes. Sheaths hairy on the distal margins and at the apices, hairs to 4 mm, stiff; ligules 0.2-0.3 mm; blades 2-8 cm long, 2-4 mm wide, flat to involute, abaxial surfaces smooth, adaxial surfaces scabridulous, bases occasionally with papillose-based hairs. Panicles 4-15 cm long, 1-7 cm wide, cylindrical to narrowly ovate, open, rachises sometimes glandular below the nodes; primary branches 0.5-4 cm, diverging 20-100° from the rachises; pulvini sparsely pilose; pedicels 1-4 (7) mm, as long as or longer than the spikelets, mostly pendent, lax, terete. Spikelets (1) 1.5-2.5 mm long, 0.9-1.4 mm wide, ovate to oblong, reddish-purple to greenish, with 4-8 florets; disarticulation basipetal, glumes persistent. Glumes ovate, hyaline, keeled, veins commonly green; lower glumes 0.4-0.7 mm; upper glumes 0.7-1 mm; lemmas 0.7-1.1 mm, ovate to broadly oblong, membranous, lateral-veins usually greenish, apices truncate to obtuse; paleas 0.6-1.1 mm, hyaline, keels ciliate, cilia 0.3-0.5 mm, apices obtuse to truncate; anthers 3, about 0.2 mm, purplish. Caryopses 0.3-0.5 mm, ellipsoid, translucent, light-brown. 2n = 20.

Distribution

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

Discussion

Eragrostis amabilis is native to the Eastern Hemisphere. It is now naturalized in the southeastern United States, growing in open areas such as cultivated fields, forest margins, and roadsides at 0-200 m.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis amabilis"
0.2 cm2 mm <br />0.002 m <br /> (?) +
Obtuse (?) +  and Truncate (?) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Paul M. Peterson +
(L.) Wight & Arn. ex Nees +
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 +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
pubescent +  and glabrous +
flat +  and involute +
2mm;4mm +
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 +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
Japanese lovegrass +
branched +, simple +  and rooting +
geniculate +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not woody +
Puerto Rico +, Ga. +, Tex. +, Virgin Islands +, Pacific Islands (Hawaii) +, Miss. +, S.C. +, Ala. +  and Fla. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
4 +  and 8 +
round +  and compressed +
reduced +
persistent +
shorter or longer +
subtending +
keeled +  and ovate +
papillose-based +
uncinate +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
(1)3(5)-veined +
ovate +  and broadly oblong +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
membranous +
sometimes longer +
ciliate +  and ciliolate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-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 +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
4cm +  and 15cm +
cylindrical +  and narrowly ovate +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
7 cm70 mm <br />0.07 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 /> (4 cm40 mm <br />0.04 m <br />) +
spikelike +
reddish-purple +  and greenish +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1 +  and 60 +
ovate +  and oblong +
0.9mm +  and 1.4mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Eragrostis tenella +
Eragrostis amabilis +
Eragrostis +
species +
membranous +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
7 +  and 13 +
rhizomatous +  and stoloniferous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +  and synoecious +