Dichanthelium commutatum subsp. joorii

(Vasey) Freckmann & Lelong
Synonyms: Panicum joorii
Treatment appears in FNA Volume 25. Treatment on page 416.

Plants from loose caudices or with knotty or loose rhizomes. Culms decumbent or sprawling, glabrous, sometimes glaucous, sometimes purplish. Basal blades large, usually 8-14 cm long, 7-22 mm wide. Cauline blades 8-25 mm wide, 4-8 times longer than wide, thin, ovatelanceolate, often glaucous, strongly asymmetric-falcate. Spikelets 2.9-3.2 mm. Lower glumes about 1/4 as long as the spikelets; lower lemmas pointed.

Discussion

Dichanthelium commutatum subsp. joorii grows in wet woodlands and swamps. Its range extends into Mexico.

Selected References

None.

Lower Taxa

None.

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

anatomy +  and kranz +
Mary E. Barkworth +
(Vasey) Freckmann & Lelong +
1 (?) +  and 3 (?) +
keeled +  and rounded +
8 cm80 mm <br />0.08 m <br /> (14 cm140 mm <br />0.14 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
well-differentiated +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
rebranching +  and dichotomous +
non-radiate +  and radiate +
distinct +
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
puberulent +  and glabrous +
linear +  and ovatelanceolate +
5mm;25mm +
spikelike +
not developed +
terete +  and compressed +
asymmetric-falcate +  and ovatelanceolate +
thin;8mm;25mm +
usually distinctly longer and narrower +
12 cm120 mm <br />0.12 m <br /> (?) +
rebranching +
not dense +
sprawling +  and decumbent +
decumbent to sprawling +  and erect +
glaucous +  and glabrous +
20 cm200 mm <br />0.2 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Del. +, W.Va. +, Fla. +, Conn. +, D.C. +, N.J. +, Mass. +, R.I. +, La. +, Tenn. +, N.C. +, S.C. +, Pa. +, N.Y. +, Va. +, Ala. +, Ark. +, Ill. +, Ga. +, Ind. +, Maine +, Md. +, Tex. +, Ohio +, Mo. +, Mich. +, Okla. +, Miss. +  and Ky. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
papillose-based +
uncinate +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Oval (?) +  and Round (?) +
bracteate +  and ebracteate +
solid +  and hollow +
puberulent +  and pubescent +
cauline +  and basal +
coriaceous +
0.3 cm3 mm <br />0.003 m <br /> (?) +
membranous +
inconspicuous +
acuminate +, acute +  and truncate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
complex +  and simple +
concealed +  and prominent +
puberulent +  and pubescent +
2 +  and 1 +
5cm +  and 12cm +
subterranean +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dry +  and fleshy +
membranous +
rebranching +  and dichotomous +
rebranching +  and dichotomous +
not overlapping +
not viscid +
puberulent +, glabrous +  and glaucous +
in triplets +  and paired +
purplish +  and yellowish-green +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
ellipsoid +
0.29 cm2.9 mm <br />0.0029 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
1.1mm +  and 1.3mm +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Panicum joorii +
Dichanthelium commutatum subsp. joorii +
Dichanthelium commutatum +
subspecies +
membranous +
chartaceous-indurate +
30 +  and 80 +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +