Axonopus compressus

(Sw.) P. Beauv.
Common names: Broadleaf carpetgrass
Treatment appears in FNA Volume 25. Treatment on page 566.

Plants stoloniferous, rarely rhizomatous, rhizomes, when present, 3-5 cm. Culms 7-80 cm; nodes glabrous or pubescent. Sheaths keeled, strongly compressed, pubescent; ligules 0.3-0.5 mm; blades 3-20 mm wide, glabrous or sparsely pilose, midveins often white and prominent, apices frequently ciliate or pubescent. Panicles terminal and axillary, 4-10 cm overall, rachises to 3.5 cm, with 2-5 branches; branches 1-13 cm. Spikelets 2-3.5 mm, ovoid, ellipsoid, or lanceoloid, acuminate. Upper glumes and lower lemmas extending beyond the upper florets, 2-5-veined, marginal veins pilose, apices acute to acuminate; upper lemmas and paleas 1.5-1.8 mm, broadly ellipsoid. Caryopses 1.2-1.5 mm, gray. 2n = 40, 60, 80.

Distribution

Tex., La., Puerto Rico, Virgin Islands, Ala., Ark., Ga., S.C., Fla.

Discussion

Axonopus compressus is native from the southeastern United States to Bolivia, Brazil, and Uruguay, and has become established in the Eastern Hemisphere. It is used as a lawn and forage grass but is also weedy, readily growing in moist, disturbed habitats.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."elongated" is not a number.

... more about "Axonopus compressus"
80 +, 60 +  and 40 +
pubescent +  and ciliate +
Acute (?) +  and Acuminate (?) +
anatomy +  and kranz +
Mary E. Barkworth +
(Sw.) P. Beauv. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
pilose +  and glabrous +
obtuse +, convolute +  and flat +
3mm;20mm +
triquetrous +  and spikelike +
not developed +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
sometimes longer +
Broadleaf carpetgrass +
branched +  and solid +
erect +  and ascending +
7 cm70 mm <br />0.07 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not woody +
Tex. +, La. +, Puerto Rico +, Virgin Islands +, Ala. +, Ark. +, Ga. +, S.C. +  and Fla. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
pubescent +  and glabrous +
2 +  and 1 +
subterranean +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dry +  and fleshy +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
compressed +  and keeled +
sessile +  and subsessile +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
acuminate +, lanceoloid +, ellipsoid +  and ovoid +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Axonopus compressus +
Axonopus +
species +
membranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
rhizomatous +  and stoloniferous +
annual +  and perennial +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +