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.

No values specified."usually distinctly longer and narrower" is not a number."decumbent" is not a number.

rounded +  and attenuate +
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 +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
terete +  and compressed +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
linear-lanceolate +
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 +