Paspalum langei

(E. Fourn.) Nash
Common names: Rustyseed paspalum
Treatment appears in FNA Volume 25. Treatment on page 588.

Plants perennial; cespitose. Culms 23-125 cm, erect; nodes glabrous or pubescent. Sheaths glabrous or pubescent; ligules 0.6-1.9 mm; blades to 38 cm long, 4-18 mm wide, flat, glabrous or pubescent, dark green. Panicles terminal, with 1-3 (4) racemosely arranged branches; branches 2.3-13.4 cm, erect to divergent, terminating in a spikelet; branch axes 0.2-1 mm wide, glabrous, margins scabrous. Spikelets 2.1-3.3 mm long, 1.3-1.6 mm wide, paired, imbricate, appressed to the branch axes, elliptic to obovate, stramineous to brown. Lower glumes 0.4-1.2 (1.8) mm, stramineous to brown; upper glumes with papillose-based short pubescence, 3-veined or 5-veined, margins entire, lower lemmas with papillose-based short pubescence, lacking ribs over the veins, 3-veined, margins entire; upper florets light stramineous. Caryopses 1.3-1.5 mm, light to dark-brown. 2n = 40, 60.

Discussion

Paspalum langei is native from Texas to Florida, and extends through Mexico to Venezuela and the Antilles. It grows at the edges of moist woods and in disturbed areas.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Paspalum langei"
rounded +
anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
(E. Fourn.) Nash +
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 +
0 cm0 mm <br />0 m <br /> (38 cm380 mm <br />0.38 m <br />) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
0.4 cm4 mm <br />0.004 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
divergent +  and arranged +
0.2mm +  and 1mm +
spikelike +
2.3 cm23 mm <br />0.023 m <br /> (13.4 cm134 mm <br />0.134 m <br />) +
not developed +
ringlike +
light +  and dark-brown +
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 +
Rustyseed paspalum +
branched +  and solid +
23 cm230 mm <br />0.23 m <br /> (125 cm1,250 mm <br />1.25 m <br />) +
Okla. +, Fla. +, Tex. +  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 +
3-veined +, 5-veined +  and papillose-based +
pubescence +
coriaceous +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
membranous +
inconspicuous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
3-veined +, 5-veined +  and papillose-based +
complex +  and simple +
concealed +  and prominent +
pubescent +  and glabrous +
2 +  and 1 +
subterranean +
spreading +  and erect +
dry +  and fleshy +
papillose-based +
pubescence +
pubescent +  and glabrous +
subsessile +  and shortly pedicellate +
imbricate +  and paired +
stramineous +  and brown +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
elliptic +  and obovate +
1.3mm +  and 1.6mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Paspalum langei +
Paspalum +
species +
membranous +
stipitate +  and sessile +
rounded +  and acute +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
smooth +  and slightly rugose +
stoloniferous +  and rhizomatous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +