Eragrostis cumingii

Steud.
Common names: Cuming's lovegrass
Introduced
Synonyms: Eragrostis broumii
Treatment appears in FNA Volume 25. Treatment on page 72.

Plants annual; cespitose, with¬out innovations, without glands. Culms 10-40 (50) cm, erect to prostrate, sometimes geniculate, branching profusely from near the base, glabrous below the nodes. Sheaths sparsely hairy at the apices, hairs to 2.5 mm; ligules 0.1-0.2 mm; blades 3-10 (12) cm long, 1-3 mm wide, flat to involute, sparsely pilose on the basal 1/2, scabridulous distally. Panicles 5-20 cm long, 2-8 cm wide, narrowly ovate, open, with 6-10 primary branches; primary branches 1-6 cm, widely spaced, axes trigonous, diverging to 90° from the rachises, densely spikelet-bearing to the base; pulvini sparsely pilose; pedicels 0.4-1 (2) mm, stout, straight, flattened. Spikelets 5-12 (18) mm long, 1.4-2.4 mm wide, linear-lanceolate, chartaceous, stramineous to greenish with reddish-purple tinges, with 12-42 florets; disarticulation acropetal. Glumes subequal in length, 1.2-1.9 mm, narrowly lanceolate to lanceolate, membranous; lower glumes narrower than the upper glumes; lemmas 1.3-2 mm, lanceolate to ovate, chartaceous, lateral-veins conspicuous, greenish, apices acute; paleas 1-1.6 mm, hyaline, keels ciliate, cilia 0.1-0.2 mm, apices obtuse to acute; anthers 3, 0.1-0.2 mm, purplish. Caryopses 0.4-0.6 mm, ovoid, laterally compressed, finely striate, light-brown. 2n = 40.

Distribution

N.J., N.C., Ala., Pacific Islands (Hawaii), Ga., Fla.

Discussion

Eragrostis cumingii is native to southeast Asia and Australia. Within the Flora region, it has become established in Florida, growing in waste places and along roadsides in sandy or gravelly soils, at 0-150 m.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eragrostis cumingii"
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 +
Steud. +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
not +  and glabrous +
trigonous +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
scabridulous +
flat +  and involute +
1mm;3mm +
not disarticulating +
not spikelike +
pubescent +  and glabrous +
compressed +  and ovoid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
membranous +
Cuming's lovegrass +
erect +  and prostrate +
geniculate +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not woody +
N.J. +, N.C. +, Ala. +, Pacific Islands (Hawaii) +, Ga. +  and Fla. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
12 +  and 42 +
round +  and compressed +
reduced +
persistent +  and deciduous +
subequal +
shorter or longer +
subtending +
narrowly lanceolate +  and lanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
membranous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
(1)3(5)-veined +
lanceolate +  and ovate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
sometimes longer +
ciliate +  and ciliolate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
membranous +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
persistent +
2-keeled +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
5cm +  and 20cm +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
flattened +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
dry +  and fleshy +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spikelike +
Introduced +
stramineous +  and greenish +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1 +  and 60 +
linear-lanceolate +
1.4mm +  and 2.4mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Eragrostis broumii +
Eragrostis cumingii +
Eragrostis +
species +
membranous +
7 +  and 13 +
rhizomatous +  and stoloniferous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +  and synoecious +