Dichanthelium erectifolium

(Nash) Gould & C.A. Clark
Common names: Florida panicgrass Erect-leaf panicgrass
Synonyms: Panicum erectifolium
Treatment appears in FNA Volume 25. Treatment on page 440.

Plants cespitose, with few culms. Basal rosettes well-differentiated; blades numerous, to 15 cm, lowest blades ovate, upper blades lanceolate, grading into the cauline blades. Culms 30-75 cm, nearly erect, stiff, slightly fleshy or thickened; nodes glabrous, often with a constricted, yellowish ring; internodes glabrous; fall phase with few, long, suberect branches, sparingly rebranched, branches arising mostly from near the base. Cauline leaves 4-7; sheaths shorter than the internodes, mostly glabrous, margins ciliate; ligules 0.2-0.5 mm; blades 5-10 cm long, 5-10 mm wide, stiffly ascending, thick, glabrous, veins evident, bases cordate, with papillose-based cilia, margins whitish, cartilaginous. Primary panicles 5-14 cm, 1/2 - 2/3 as wide as long, exserted. Spikelets 1-1.4 mm, broadly obovoid-spherical, puberulent to subglabrous. Lower glumes 0.2-0.4 mm, acute, upper florets 0.8-1.1 mm, broadly ellipsoid, minutely umbonate. 2n = unknown.

Distribution

Ga., La., Ala., N.C., S.C., Miss., Fla.

Discussion

Dichanthelium erectifolium grows in sand and peat in wet pinelands, bogs, and the shores of ponds. Its range extends from the southeastern Flora region into the Caribbean.

Selected References

None.

Lower Taxa

None.

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

anatomy +  and kranz +
Mary E. Barkworth +
(Nash) Gould & C.A. Clark +
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 +
distinct +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
ovatelanceolate +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
thick;5mm;10mm +
arising;suberect +
spikelike +
not developed +
terete +  and compressed +
usually distinctly longer and narrower +
papillose-based +
sometimes longer +
Florida panicgrass +  and Erect-leaf panicgrass +
branching +  and hollow +
decumbent +  and sprawling +
30 cm300 mm <br />0.3 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Ga. +, La. +, Ala. +, N.C. +, S.C. +, Miss. +  and Fla. +
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 +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
1/5 +  and 3/4 +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
dry +  and fleshy +
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
constricted +
in triplets +  and paired +
puberulent +  and subglabrous +
1 +  and 60 +
unisexual +  and bisexual +
obovoid-spherical +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Panicum erectifolium +
Dichanthelium erectifolium +
Dichanthelium sect. Sphaerocarpa +
species +
membranous +
umbonate +  and ellipsoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
chartaceous-indurate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +