Paspalum dissectum

(L.) L.
Common names: Mudbank paspalum
Treatment appears in FNA Volume 25. Treatment on page 572.

Plants perennial; rhizomatous. Culms 10-50 cm, decumbent; nodes glabrous or pubescent. Sheaths glabrous; ligules 2-2.5 mm; blades to 12 cm long, 1.3-4.8 mm wide, flat. Panicles terminal, with 2-6 racemosely arranged branches; branches 1.3-5.3 cm, diverging to erect, often arcuate, persistent; branch axes 1.8-3 mm wide, broadly winged, usually conduplicate, glabrous, margins scabrous, terminating in a spikelet. Spikelets 1.7-2.1 mm long, 1.1-1.4 mm wide, solitary, appressed to the branch axes, elliptic to ovate, glabrous, stramineous. Lower glumes absent; upper glumes and lower lemmas 5-veined; upper florets stramineous, lemmas glabrous throughout. Caryopses 1-1.3 mm, white. 2n = 40, 60.

Distribution

Md., N.J., Tenn., Okla., Miss., Tex., La., Mo., Del., Ala., D.C., Kans., N.C., S.C., Va., Ark., Ill., Ga., Ky., Fla.

Discussion

Paspalum dissectum grows at the edges of lakes, ponds, rice fields, and wet roadside ditches. It is native to the eastern portion of the contiguous United States and to Cuba.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Paspalum dissectum"
rounded +
anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
(L.) L. +
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 /> (12 cm120 mm <br />0.12 m <br />) +
usually linear +  and lanceolate occasionally ovate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
1.8mm +  and 3mm +
persistent +
diverging;erect +
spikelike +
1.3 cm13 mm <br />0.013 m <br /> (5.3 cm53 mm <br />0.053 m <br />) +
not developed +
ringlike +
orbicular +  and elliptical planoconvex or flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
sometimes longer +
Mudbank paspalum +
branched +  and solid +
trailing +, prostrate +, spreading +  and erect +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Md. +, N.J. +, Tenn. +, Okla. +, Miss. +, Tex. +, La. +, Mo. +, Del. +, Ala. +, D.C. +, Kans. +, N.C. +, S.C. +, Va. +, Ark. +, Ill. +, Ga. +, Ky. +  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 +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
pubescent +  and glabrous +
2 +  and 1 +
subterranean +
spreading +  and erect +
dry +  and fleshy +
subsessile +  and shortly pedicellate +
paired +  and not solitary +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
elliptic +  and ovate +
1.1mm +  and 1.4mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Paspalum dissectum +
Paspalum +
species +
membranous +
stipitate +  and sessile +
rounded +  and acute +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
smooth +  and slightly rugose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +