Schizachyrium spadiceum

(Swallen) Wipff
Common names: Honey bluestem
Synonyms: Andropogon spadiceus
Treatment appears in FNA Volume 25. Treatment on page 669.

Plants cespitose. Culms 60-95 cm, slender, erect, glabrous. Leaves glaucous; sheaths compressed, scabridulous, glabrous or almost so; ligules 1-1.5 mm, truncate, erose-ciliate; blades 10-25 cm long, 2-2.5 mm wide, flat, scabrous, young blades ciliate basally. Peduncles 5-9 cm, mostly erect, often included in the subtending leaves, with 2 rames; rames 3.5-5 cm, enclosed or exerted at maturity; internodes 4-6.3 mm, ciliate proximally, densely villous on the distal 1/2 - 2/3, hairs 4-7 mm. Sessile spikelets 7-8 mm; calluses 0.2-0.5 mm, hairs 1-2 mm; lower glumes glabrous, keels scabridulous distally; awns 14.5-17.5 mm, once-geniculate. Pedicels 5-6 mm, hairs 5-7 mm. Pedicellate spikelets 0.8-4 mm, sterile, unawned. 2n = unknown.

Discussion

Schizachyrium spadiceum was once thought to be a Mexican endemic, but it is now known from limestone slopes in Brewster County, Texas.

Selected References

None.

Lower Taxa

None.

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

... more about "Schizachyrium spadiceum"
fimbriate +  and cupulate +
anatomy +  and kranz +
J.K. Wipff +
(Swallen) Wipff +
1 (?) +  and 3 (?) +
straight +
once-geniculate +
1.45 cm14.5 mm <br />0.0145 m <br /> (1.75 cm17.5 mm <br />0.0175 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 /> (25 cm250 mm <br />0.25 m <br />) +
usually linear +  and lanceolate occasionally ovate +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
spikelike +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Honey bluestem +
slender +
60 cm600 mm <br />0.6 m <br /> (95 cm950 mm <br />0.95 m <br />) +
not woody +
capillary +
sometimes longer +
concealing +
1 +  and 2 +
compressed +  and terete +
shorter or longer +
subtending +
lanceolate +  and linear +
unequal +
membranous +
uncinate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
solid +  and hollow +
filiform +  and clavate +
0.4 cm4 mm <br />0.004 m <br /> (0.63 cm6.3 mm <br />0.0063 m <br />) +
scabridulous +
photosynthetic +
not aromatic +
awned +, bifid +  and bilobed +
coriaceous +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
inconspicuous +
2-keeled +  and convex +
complex +  and simple +
concealed +  and prominent +
pedicellate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
exerted at maturity +  and enclosed +
3.5 cm35 mm <br />0.035 m <br /> (?) +  and 5 cm50 mm <br />0.05 m <br /> (?) +
dry +  and fleshy +
elongate +
almost +  and glabrous +
scabridulous +
compressed +
pedicellate +  and sessile +
in triplets +  and paired +
compressed +
usually smaller +  and reduced +
0.08 cm0.8 mm <br />8.0e-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 spadiceus +
Schizachyrium spadiceum +
Schizachyrium +
species +
membranous +
sessile-pedicellate +
perennial +  and annual +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +