Schizachyrium sanguineum var. hirtiflorum

(Nees) S.L. Hatch
Common names: Hairy crimson bluestem
Synonyms: Schizachyrium sanguineum var. brevipedicellatum Andropogon hirtiflorus var. feensis
Treatment appears in FNA Volume 25. Treatment on page 674.

Culms 40-120 cm, branching at the upper nodes, glaucous. Ligules 1-2 mm; blades 10-20 cm long, 1.5-5 mm wide. Rames 4-10 (12) cm; internodes scabrous, glabrous or hirsute. Sessile spikelets 5-9 mm; lower glumes sparsely to densely hirsute on the back; awns 15-25 mm. Pedicels arcuate at maturity, ciliate on both edges distally. Pedicellate spikelets 3-5 mm, staminate or sterile, awns 0.3-5 mm. 2n = 40, 60, 70, 100.

Distribution

Puerto Rico, N.Mex., Tex., Ala., Ga., Ariz., Fla.

Discussion

In the Flora region, Schizachyrium sanguineum var. hirtiflorum grows on rocky slopes and well-drained soils from Arizona to southwestern Texas and Florida, and is considered a good forage species. Its range extends through Central America to Chile, Paraguay, and Uruguay.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."/8" is not declared as a valid unit of measurement for this property."/4" is not declared as a valid unit of measurement for this property.

100 +, 70 +, 60 +  and 40 +
fimbriate +  and cupulate +
anatomy +  and kranz +
J.K. Wipff +
(Nees) S.L. Hatch +
1 (?) +  and 3 (?) +
straight +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
widening +
pseudopetiolate +
non-radiate +  and radiate +
12 cm120 mm <br />0.12 m <br /> (?) +
well-developed +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
usually linear +  and lanceolate occasionally ovate +
reduced +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spikelike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Hairy crimson bluestem +
40 cm400 mm <br />0.4 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
not woody +
Puerto Rico +, N.Mex. +, Tex. +, Ala. +, Ga. +, Ariz. +  and Fla. +
capillary +
sometimes longer +
concealing +
1 +  and 2 +
compressed +  and terete +
shorter or longer +
subtending +
lanceolate +  and linear +
unequal +
membranous +
papillose-based +
uncinate +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
solid +  and hollow +
hirsute +, glabrous +  and scabrous +
filiform +  and clavate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
photosynthetic +
not aromatic +
awned +, bifid +  and bilobed +
coriaceous +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
inconspicuous +
2-keeled +  and convex +
complex +  and simple +
concealed +  and prominent +
pedicellate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.3mm +  and 0.5mm +
4 cm40 mm <br />0.04 m <br /> (?) +  and 15 cm150 mm <br />0.15 m <br /> (?) +
dry +  and fleshy +
elongate +
staminate +, pedicellate +  and sessile +
in triplets +  and paired +
usually evidently shorter +
compressed +
usually smaller +  and reduced +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Schizachyrium sanguineum var. brevipedicellatum +  and Andropogon hirtiflorus var. feensis +
Schizachyrium sanguineum var. hirtiflorum +
Schizachyrium sanguineum +
variety +
straight +
sessile-pedicellate +
perennial +  and annual +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +