Dichanthelium nodatum

(Hitchc. & Chase) Gould
Common names: Sarita panicgrass
Synonyms: Panicum nodatum
Treatment appears in FNA Volume 25. Treatment on page 410.

Plants usually cespitose, rarely rhizomatous. Basal rosettes absent. Culms 20-65 cm, decumbent to ascending even in spring, with hard, cormlike bases; nodes puberulent to sparsely pubescent; internodes scabrous-puberulent to papillose-hirsute; fall phase with geniculate to decumbent culms, developing divaricate branches from the midculm nodes before the primary panicles mature. Cauline leaves 8-14; sheaths not overlapping, puberulent to papillose-hirsute, margins ciliate; ligules 0.1-1 mm, of hairs; blades 3-9 cm long, 4-8 mm wide, thick, firm, puberulent, sides parallel above the rounded to truncate bases, margins with papillose-based cilia. Primary panicles 3-13 cm long, 2-8 cm wide, exserted; branches ascending to divaricate at maturity; pedicels appressed. Spikelets 3.4-4.4 mm long, 1.3-1.6 mm wide, narrowly obovoid-obpyriform, finely pubescent, hairs papillose-based, bases long, narrow. Lower glumes 1.5-2 mm, attached about 0.2 mm below the upper glumes, partly or completely encircling the pedicels; upper glumes about 0.3 mm shorter than the upper florets, purplish at the bases; lower florets sterile; upper florets with pointed, puberulent apices. 2n = 18 (J. Wipff, pers. comm., 2001).

Discussion

Dichanthelium nodatum grows in oak savannahs near the Gulf coast from Texas to northeastern Mexico. The primary panicles are produced from April into June (sometimes late August to November) and are at least partly open-pollinated; the secondary panicles are produced from May into fall and are at least partly cleistogamous.

Selected References

None.

Lower Taxa

None.

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

... more about "Dichanthelium nodatum"
puberulent +
pointed +
anatomy +  and kranz +
Mary E. Barkworth +
(Hitchc. & Chase) Gould +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
rounded to truncate +
swelling +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
distinct +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
shortly ovate +  and lanceolate +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
terete +  and compressed +
papillose-based +
sometimes longer +
Sarita panicgrass +
branching +  and hollow +
decumbent +  and ascending +
geniculate +
20 cm200 mm <br />0.2 m <br /> (65 cm650 mm <br />0.65 m <br />) +
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 +
scabrous-puberulent +  and papillose-hirsute +
cauline +  and basal +
coriaceous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
inconspicuous +
1/5 +  and 3/4 +
acuminate +, acute +  and truncate +
0.2 cm2 mm <br />0.002 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
complex +  and simple +
concealed +  and prominent +
puberulent +  and sparsely pubescent +
2 +  and 1 +
subterranean +
dry +  and fleshy +
divaricate-branching +
3 cm30 mm <br />0.03 m <br /> (13 cm130 mm <br />0.13 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
not overlapping +
not viscid +
puberulent +  and papillose-hirsute +
in triplets +  and paired +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
obovoid-obpyriform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
1.3mm +  and 1.6mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Panicum nodatum +
Dichanthelium nodatum +
Dichanthelium sect. Pedicellata +
species +
membranous +
subacute +  and acute +
0.3 cm3 mm <br />0.003 m <br /> (?) +
chartaceous-indurate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +