Plants annual or perennial, if perennial, growth habit various. Culms erect or decumbent, some¬times succulent or robust. Ligules membranous, membranous and ciliate, or lacerate; blades with the vascular-bundles surrounded by 2 thick-walled sheaths, outer sheaths parenchymatous, chloroplasts few and unspecialized or absent. Photosynthesis C3. Spikelets ovoid, ellipsoid, or obovoid, glabrous, pilose, or tuberculate. Lower glumes 1/5 - 4/5 as long as the spikelets, usually 3-veined; upper glumes and lower lemmas usually 5-veined (rarely 7-veined or 9-veined); lower florets sterile or staminate; lower paleas present or absent; upper florets sometimes stipitate, indurate to membranous, smooth and shiny, or rugose, or finely pubescent, or with paired glands, x = 9 or 10, with some polyploids.

Discussion

Panicum subg. Phanopyrum is most abundant in wet forests of warm temperate and tropical regions. In the Western Hemisphere, its range extends from the southern United States through South America.

Selected References

None.

"decumbent" is not a number.

... more about "Panicum subg. Phanopyrum"
puberulent +
acute +, obtuse +, rounded +  and attenuate +
anatomy +  and kranz +
Robert W. Freckmann +  and Michel G. Lelong +
(Raf.) Pilg. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
pubescent +  and glabrous +
filiform +  and ovate flat +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
terete +  and compressed +
sometimes longer +
small green +
branched +  and simple +
decumbent +  and erect +
2 cm20 mm <br />0.02 m <br /> (300 cm3,000 mm <br />3 m <br />) +
succulent +
Conn. +, N.H. +, R.I. +, N.C. +, N.J. +, N.Y. +, Wash. +, Ala. +, Fla. +, W.Va. +, Mich. +, Del. +, D.C +, Wis. +, Iowa +, Pacific Islands (Hawaii) +, Colo. +, Ill. +, Maine +, Oreg. +, Utah +, Mass. +, Vt. +, Wyo. +, Puerto Rico +, N.Mex. +, Tex. +, La. +, Ind. +, Md. +, Miss. +, Pa. +, Va. +, Ark. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ky. +, Ariz. +, Idaho +, Tenn. +, S.C. +, Calif. +, Nev. +, Mo. +, Ga. +, Minn. +, Mont. +, Ohio +, Virgin Islands +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Labr.) +, N.S. +, Ont. +, P.E.I. +, Que. +  and Sask. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
pubescent +  and glabrous +
tuberculate +
unequal +
membranous +
uncinate +
Oval (?) +  and Round (?) +
bracteate +  and ebracteate +
hollow +  and solid +
coriaceous +
lacerate +  and ciliate +
membranous +
inconspicuous +
1/5 +  and 4/5 +
acuminate +, acute +  and truncate +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
dry +  and fleshy +
in triplets +  and paired +
pilose +  and glabrous +
1 +  and 60 +
unisexual +  and bisexual +
obovoid +, ellipsoid +  and ovoid +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 +  and 3 +
compound +  and simple +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Panicum subg. Phanopyrum +
subgenus +
membranous +
pubescent +  and glabrous +
rugose +  and verrucose +
chartaceous-indurate +  and rigid +
perennial +  and annual +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +