Dichanthelium polyanthes

(Schult.) Mohlenbr.
Common names: Many-flowered panicgrass
Synonyms: Panicum sphaerocarpon var. polyanthes Panicum sphaerocarpon var. isophyllum Panicum polyanthes
Treatment appears in FNA Volume 25. Treatment on page 440.

Plants cespitose, with few culms per tuft. Basal rosettes well-differentiated; blades 3-8 cm long, often to 2 cm wide, ovatelanceolate. Culms 30-95 cm, nearly erect, fairly stout; nodes glabrous or puberulent; internodes usually glabrous; fall phase with few, long-ascending branches, sparingly rebranched, branches arising mostly near the base of the culms. Cauline leaves 4-7; sheaths shorter than the internodes, mostly glabrous, margins ciliate; ligules vestigial; blades 10-25 cm long, 14-25 mm wide, thick, firm, often light green, veins evident (some more prominent than others), bases cordate, with papillose-based cilia, margins whitish, cartilaginous. Primary panicles 7-20 cm, less than 1/2 as wide as long, exserted. Spikelets 1.3-1.7 mm, broadly ellipsoid-spherical, often purplish at the base, puberulent. Lower glumes 0.4-0.7 mm, acute to obtuse, upper florets 1.1-1.4 mm, broadly ellipsoid, blunt. 2n = 18.

Discussion

Dichanthelium polyanthes grows in woods, stream banks, and ditches, and is restricted to the eastern United States. It occasionally hybridizes with D. sphaerocarpon.

Selected References

None.

Lower Taxa

None.

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

... more about "Dichanthelium polyanthes"
anatomy +  and kranz +
Mary E. Barkworth +
(Schult.) Mohlenbr. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
well-differentiated +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
cordate +
minute +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
light green +
distinct +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
ovatelanceolate +
thick;14mm;25mm +
arising;long-ascending +
spikelike +
not developed +
terete +  and compressed +
usually distinctly longer and narrower +
papillose-based +
sometimes longer +
Many-flowered panicgrass +
branching +  and hollow +
decumbent +  and sprawling +
30 cm300 mm <br />0.3 m <br /> (95 cm950 mm <br />0.95 m <br />) +
Minn. +, Conn. +, N.J. +, N.Y. +, Wash. +, Ala. +, Mich. +, N.C. +, Pa. +, Puerto Rico +, S.C. +, W.Va. +, Ark. +, Iowa +, Kans. +, Mo. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Del. +, D.C +, Wis. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Labr.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Pacific Islands (Hawaii) +, Md. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, Miss. +, Ariz. +, N.Mex. +, Tex. +, La. +, Ga. +, Tenn. +, Calif. +, Nev. +, Colo. +, Ill. +, Ind. +, Va. +, Idaho +, Ohio +, Utah +, Mont. +, Oreg. +  and Ky. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
0.8 cm8 mm <br />0.008 m <br /> (?) +
Oval (?) +  and Round (?) +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
membranous +
inconspicuous +
1/5 +  and 3/4 +
acute +  and obtuse +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
complex +  and simple +
concealed +  and prominent +
puberulent +  and glabrous +
2 +  and 1 +
subterranean +
dry +  and fleshy +
7 cm70 mm <br />0.07 m <br /> (20 cm200 mm <br />0.2 m <br />) +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
ellipsoid-spherical +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Panicum sphaerocarpon var. polyanthes +, Panicum sphaerocarpon var. isophyllum +  and Panicum polyanthes +
Dichanthelium polyanthes +
Dichanthelium sect. Sphaerocarpa +
species +
membranous +
blunt +  and ellipsoid +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
chartaceous-indurate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +