Andropogon liebmannii

Hack.
Common names: Liebmann's bluestem Mohr's bluestem
Endemic
Treatment appears in FNA Volume 25. Treatment on page 657.

Plants cespitose, cylindrical to oblong above. Culms 20-170 cm; internodes not glaucous; branches mostly erect, straight. Sheaths smooth; ligules 0.7-1.2 mm, sometimes ciliate, cilia to 0.4 mm; blades 3-35 cm long, 2.5-7.5 mm wide, sparsely to densely pubescent with spreading, shaggy hairs. Inflorescence units 7-50 per culm; subtending sheaths (4) 4.9-7.4 (10) cm long, (3) 4.2-6.1 (10.1) mm wide; peduncles (10) 24-68 (130) mm, at least some extending beyond the subtending sheaths at maturity, with 2-13 rames; rames (2) 2.4-4 (5) cm, usually exserted at maturity, pubescence increasing in density distally within each internode. Sessile spikelets (3) 4-4.5 (6.9) mm; keels of lower glumes scabrous above (and sometimes below) the midpoint; awns 17-24 mm; anthers 1, 0.7-1.4 mm, yellow. Pedicellate spikelets vestigial or absent. 2n = 20.

Discussion

Andropogon liebmannii has two varieties. Andropogon liebmannii var. pungensis (Ashe) C.S. Campb., the variety found in the Flora region, differs from A. liebmannii Hack. var. liebmannii, which grows in Mexico, in having culms that are usually more than 80 cm tall, leaves that are more than 15 cm long, and sessile spikelets that are more than 4.2 mm long; in var. pungensis the culms are usually less than 90 cm tall, the leaves less than 15 cm long, and the sessile spikelets less than 4.2 mm long.

Andropogon liebmannii var. pungensis grows along the coastal plain of the southeastern United states in bog, swamp, savannahs, and flatwoods. It used to be treated as a species, which was known as A. mobrii. The English name "Mohr's Bluestem" reflects this treatment.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Andropogon liebmannii"
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
anatomy +  and kranz +
Christopher S. Campbell +
1 (?) +  and 3 (?) +
1.7 cm17 mm <br />0.017 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
terete +  and flattened +
slender +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
3 cm30 mm <br />0.03 m <br /> (35 cm350 mm <br />0.35 m <br />) +
convolute +, folded +, flat +  and linear +
reduced +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
spikelike +
0 cm0 mm <br />0 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Liebmann's bluestem +  and Mohr's bluestem +
much-branched +
purple +  and reddish +
20 cm200 mm <br />0.2 m <br /> (170 cm1,700 mm <br />1.7 m <br />) +
not woody +
Minn. +, Conn. +, N.J. +, N.Y. +, Wis. +, Del. +, D.C +, Man. +, Ont. +, Que. +, Sask. +, W.Va. +, Pacific Islands (Hawaii) +, Ark. +, Ariz. +, Calif. +, Ga. +, La. +, Md. +, Miss. +, N.C. +, N.Mex. +, Nev. +, Puerto Rico +, S.C. +, Tex. +, Va. +, Virgin Islands +, Fla. +, Wyo. +, N.H. +, Ala. +, Ill. +, Ind. +, Kans. +, Ky. +, Mass. +, Mich. +, Mo. +, Okla. +, Pa. +, R.I. +, Tenn. +, Utah +, Maine +, Vt. +, Colo. +, N.Dak. +, Nebr. +, S.Dak. +, Iowa +, Ohio +  and Mont. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
4.9 cm49 mm <br />0.049 m <br /> (7.4 cm74 mm <br />0.074 m <br />) +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.61 cm6.1 mm <br />0.0061 m <br />) +
with inconspicuous veins +  and veined +
fimbriate +  and cupulate +
solid +  and hollow +
exserted +  and not glaucous +
photosynthetic +
not aromatic +
coriaceous +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
membranous +
inconspicuous +
2-9-veined +  and veined +
concave +, flat +  and 2-keeled +
complex +  and simple +
concealed +  and prominent +
sessile-pedicellate +
heterogamous +
not fused +
3 cm30 mm <br />0.03 m <br /> (?) +
10 cm100 mm <br />0.1 m <br /> (?) +
2.4 cm24 mm <br />0.024 m <br /> (?) +  and 6.8 cm68 mm <br />0.068 m <br /> (?) +
dry +  and fleshy +
elongate +
pedicellate +  and sessile +
in triplets +  and paired +
well-developed +
usually smaller +  and reduced +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Andropogon liebmannii +
Andropogon sect. Leptopogon +
species +
membranous +
sessile-pedicellate +
inconspicuous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +
cylindrical +  and oblong +