Andropogon glomeratus var. pumilus

(Vasey) L.H. Dewey
Synonyms: Andropogon virginicus var. tenuispatheus Tenuispatheus
Treatment appears in FNA Volume 25. Treatment on page 664.

Plants oblanceolate to obpyramidal in the upper portion. Culms to 2.5 m, but as short as 20 cm in poor soils; internodes not glaucous. Leaf-sheaths usually smooth; ligules ciliate, cilia 0.2-0.9 mm; blades green, smooth or pubescent. Subtending sheaths of inflorescence units (2) 2.9-4.3 (5.2) cm long, 1.5-3 mm wide; peduncles (2) 8-15 (40) mm; rames 1.3-3 cm, exerted. Keels of lower glumes usually smooth below midlength, scabrous distally; anthers often retained within the spikelets.

Distribution

Va., Okla., Tex., Ark., Ariz., Calif., Ga., La., Miss., N.C., N.Mex., Nev., Puerto Rico, S.C., Virgin Islands, Ala., Utah, Fla.

Discussion

Andropogon glomeratus var. pumilus is weedy and grows in disturbed, wet or moist sites. It is abundant and widespread, extending from the southern United States through Central America to northern South America.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."elongated" is not a number.

purple +, red +  and yellow +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
anatomy +  and kranz +
Christopher S. Campbell +
(Vasey) L.H. Dewey +
1 (?) +  and 3 (?) +
0.6 cm6 mm <br />0.006 m <br /> (1.9 cm19 mm <br />0.019 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 +
2.9 cm29 mm <br />0.029 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
pubescent +  and smooth +
convolute +, folded +, flat +  and linear +
reduced +
1.5mm;3mm +
spikelike +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
much-branched +
purple +  and reddish +
20 cm200 mm <br />0.2 m <br /> (0 cm0 mm <br />0 m <br />) +
not woody +
Va. +, Okla. +, Tex. +, Ark. +, Ariz. +, Calif. +, Ga. +, La. +, Miss. +, N.C. +, N.Mex. +, Nev. +, Puerto Rico +, S.C. +, Virgin Islands +, Ala. +, Utah +  and Fla. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
2.9 cm29 mm <br />0.029 m <br /> (4.4 cm44 mm <br />0.044 m <br />) +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
with inconspicuous veins +  and veined +
fimbriate +  and cupulate +
solid +  and hollow +
photosynthetic +
not aromatic +
coriaceous +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 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 /> (?) +
2 cm20 mm <br />0.02 m <br /> (?) +
1.3 cm13 mm <br />0.013 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
dry +  and fleshy +
elongate +
pedicellate +  and sessile +
in triplets +  and paired +
well-developed +
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 +
Andropogon virginicus var. tenuispatheus +  and Tenuispatheus +
Andropogon glomeratus var. pumilus +
Andropogon glomeratus +
variety +
membranous +
sessile-pedicellate +
inconspicuous +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +
oblanceolate +  and obpyramidal +