Schizachyrium scoparium var. stoloniferum

(Nash)
Common names: Creeping bluestem
Treatment appears in FNA Volume 25. Treatment on page 670.

Plants not cespitose, with long, scaly rhizomes. Culms 58-210 cm. Sheaths usually pubescent near the collars; blades 10-39 cm long, 3.5-9 mm wide, pubescent near the collars. Rames 2-6.5 cm, with 6-14 spikelets, usually partially to fully exserted; internodes pubescent, hairs to 4.5 mm. Sessile spikelets 5-10 mm; calluses with hairs to 2.5 mm; awns 6-14 mm. Pedicels 3.5-5 mm, curving out at maturity. Pedicellate spikelets 0.75-4 mm, sterile, awned, awns 1-3 mm.

Distribution

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

Discussion

Schizachyrium scoparium var. stoloniferum grows in sandy soils of woodland openings and roadsides from southern Alabama and Georgia south to the Everglades. Northern populations consist of widely spaced, weak culms growing in rather bare sand; southern populations consist of dense, vigorous stands with taller, more robust culms growing primarily along roadsides, possibly spread by grading equipment. Some clones, particularly in the south, are largely sterile.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."elongated" is not a number."/8" is not declared as a valid unit of measurement for this property."/2" is not declared as a valid unit of measurement for this property.

anatomy +  and kranz +
J.K. Wipff +
(Nash) +
1 (?) +  and 3 (?) +
straight +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
10 cm100 mm <br />0.1 m <br /> (39 cm390 mm <br />0.39 m <br />) +
usually linear +  and lanceolate occasionally ovate +
reduced +
2 cm20 mm <br />0.02 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
3.5mm;9mm +
spikelike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
narrowed +  and elongate +
Creeping bluestem +
branching +  and not rooting +
7 cm70 mm <br />0.07 m <br /> (210 cm2,100 mm <br />2.1 m <br />) +
ascending +  and erect +
58 cm580 mm <br />0.58 m <br /> (210 cm2,100 mm <br />2.1 m <br />) +
not woody +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Miss. +, Fla. +, Ala. +, Ga. +, N.C. +  and S.C. +
capillary +
sometimes longer +
concealing +
1 +  and 2 +
compressed +  and terete +
shorter or longer +
subtending +
lanceolate +  and linear +
unequal +
membranous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
solid +  and hollow +
filiform +  and clavate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
photosynthetic +
not aromatic +
awned +, bifid +  and bilobed +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
inconspicuous +
2-keeled +  and convex +
complex +  and simple +
concealed +  and prominent +
pedicellate +
3mm;7.5mm +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1mm +  and 0.2mm +
2.5 cm25 mm <br />0.025 m <br /> (?) +  and 8 cm80 mm <br />0.08 m <br /> (?) +
dry +  and fleshy +
elongate +
keeled +  and rounded +
pedicellate +  and sessile +
in triplets +  and paired +
6 +  and 14 +
compressed +
usually smaller +  and reduced +
0.075 cm0.75 mm <br />7.5e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Andropogon scoparius +
Schizachyrium scoparium var. stoloniferum +
Schizachyrium scoparium +
variety +
sessile-pedicellate +
green +  and purplish +
perennial +  and annual +
plant +  and not cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +