Dichanthelium commutatum subsp. ashei

(T.G. Pearson ex Ashe) Freckmann & Lelong
Synonyms: Panicum commutatum var. ashei Panicum ashei
Treatment appears in FNA Volume 25. Treatment on page 414.

Plants from small caudices. Culms slender, wiry, erect, densely crisp-puberulent. Basal blades usually shorter than 3 cm, to 6 mm wide. Cauline blades 5-8 cm long, 5-10 mm wide, linear-lanceolate, thick, often yellowish-green, bases symmetrical. Spikelets 2.2-2.7 mm. Lower glumes 1/5 – 1/4 the length of the spikelets; lower lemmas pointed.

Discussion

Dichanthelium commutatum subsp. ashei grows in open woodlands. It sometimes resembles, and may hybridize with, D. dichotomum.

Selected References

None.

Lower Taxa

None.

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

anatomy +  and kranz +
Mary E. Barkworth +
(T.G. Pearson ex Ashe) Freckmann & Lelong +
1 (?) +  and 3 (?) +
keeled +  and rounded +
3 cm30 mm <br />0.03 m <br /> (?) +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 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 +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
linear-lanceolate +
thick;5mm;10mm +
usually distinctly longer and narrower +
12 cm120 mm <br />0.12 m <br /> (?) +
not dense +
decumbent +  and sprawling +
crisp-puberulent +
slender +
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 +
1/5 +  and 1/4 +
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 +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
1.1mm +  and 1.3mm +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Panicum commutatum var. ashei +  and Panicum ashei +
Dichanthelium commutatum subsp. ashei +
Dichanthelium commutatum +
subspecies +
membranous +
chartaceous-indurate +
30 +  and 80 +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +