Paspalum convexum

Humb. & Bonpl. ex Flüggé
Common names: Mexican paspalum
Introduced
Treatment appears in FNA Volume 25. Treatment on page 581.

Plants annual. Culms 10-53 cm, erect; nodes glabrous. Sheaths pubescent or glabrous; ligules 2-4.1 mm; blades 5-25 (80) cm long, 2.9-10.2 (12) mm wide, flat. Panicles terminal, with 1-5 racemosely arranged branches; branches 1.1-5.4 (7) cm, divergent; branch axes 0.8-1.3 mm wide, not or narrowly winged, glabrous, terminating in a spikelet. Spikelets 2.1-2.6 mm long, 1.7-2.4 mm wide, paired, appressed to the branch axes, broadly obovate to suborbicular, shortly pubescent, light to dark-brown. Lower glumes absent; upper glumes and lower lemmas shortly pubescent, 5-7-veined, margins entire; lower paleas rarely present; upper florets dark glossy brown. Caryopses 1.3-1.5 mm, white. 2n = 30,32,40,60.

Distribution

Puerto Rico, Md., Tex., Miss., La.

Discussion

Paspalum convexum grows in disturbed areas in the southern United States. It is native from Mexico and the Caribbean Islands to Brazil. It is not considered to have particularly high forage value.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Paspalum convexum"
60 +, 40 +, 32 +  and 30 +
rounded +
anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
Humb. & Bonpl. ex Flüggé +
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 +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
usually linear +  and lanceolate occasionally ovate +
0.29 cm2.9 mm <br />0.0029 m <br /> (1.02 cm10.2 mm <br />0.0102 m <br />) +
divergent +  and arranged +
7 cm70 mm <br />0.07 m <br /> (?) +
0.8mm +  and 1.3mm +
spikelike +
1.1 cm11 mm <br />0.011 m <br /> (5.4 cm54 mm <br />0.054 m <br />) +
not developed +
ringlike +
orbicular +  and elliptical planoconvex or flattened +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
sometimes longer +
Mexican paspalum +
branched +  and solid +
10 cm100 mm <br />0.1 m <br /> (53 cm530 mm <br />0.53 m <br />) +
Puerto Rico +, Md. +, Tex. +, Miss. +  and La. +
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 +
0.2 cm2 mm <br />0.002 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
spreading +  and erect +
dry +  and fleshy +
glabrous +  and pubescent +
Introduced +
subsessile +  and shortly pedicellate +
light +  and dark-brown +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
broadly obovate +  and suborbicular +
1.7mm +  and 2.4mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Paspalum convexum +
Paspalum +
species +
membranous +
stipitate +  and sessile +
rounded +  and acute +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
smooth +  and slightly rugose +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +