Panicum sect. Hemitonia

(Hitchc.) Freckmann & Lelong
Treatment appears in FNA Volume 25. Treatment on page 434.

Plants perennial; aquatic or semiaquatic, rhizomatous, rhizomes extensive. Culms erect or sprawling, often sterile. Ligules membranous and ciliate, or lacerate. Panicles narrow; branches few, spikelike, erect; ultimate branchlets 1-sided; pedicels less than 2 mm long, appressed. Spikelets lanceoloid, laterally compressed, glabrous; lower florets staminate; upper lemmas thin, flexible, whitish, clasping the paleas only near the base, x = 9.

Discussion

Panicum sect. Hemitonia includes only P. hemitomon.

Selected References

None.

Lower Taxa

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

... more about "Panicum sect. Hemitonia"
puberulent +
Acute (?) +, Obtuse (?) +, Rounded (?) +  and Attenuate (?) +
anatomy +  and kranz +
Robert W. Freckmann +  and Michel G. Lelong +
(Hitchc.) Freckmann & Lelong +
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 +
not developed +
terete +  and compressed +
sometimes longer +
small green +
branched +  and simple +
sprawling +  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 +
extensive +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
compressed +  and lanceoloid +
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 sect. Hemitonia +
Panicum subg. Phanopyrum +
section +
membranous +
pubescent +  and glabrous +
rugose +  and verrucose +
chartaceous-indurate +  and rigid +
aquatic +  and terrestrial +
semiaquatic +  and aquatic +
dioecious +, monoecious +  and synoecious +