Andropogon floridanus

Scribn.
Common names: Florida bluestem
Endemic
Treatment appears in FNA Volume 25. Treatment on page 655.

Plants cespitose, usually densely obpyramidal to oblanceolate above. Culms 70-210 cm; internodes occasionally somewhat glaucous just below the node; branches straight, mostly erect to ascending. Sheaths often scabrous, somteimes smooth; ligules 0.4-1.2 mm, ciliate, cilia 0.2-1.3 mm; blades 32-61 cm long, 2.9-5 mm wide, glabrous, rarely sparsely pubescent. Inflorescence units (9) 50-210 per culm; subtending sheaths (3) 4-5.9 (7) cm long, (1.5) 2-2.7 (3.6) mm wide; peduncles (10) 19-48 (93) mm, with 2 (4) rames; rames (2) 2.5-3.7 (4.5) cm, usually exserted at maturity, internodes evenly pubescent. Sessile spikelets (3.8) 4.4-4.8 (5.5) mm; callus hairs 1-3 mm; keels of lower glumes glabrous below midlength; awns 5-15 mm; anthers 1 (3), 1.3-2 mm, usually yellow (sometimes purple). Pedicellate spikelets vestigial or absent. 2n = 20.

Discussion

Andropogon floridanus grows on sandy soils in southeastern Georgia and Florida, being most abundant in Pinus clausa scrublands. It usually occurs in small stands, but stands of about a hundred individuals have been observed.

Selected References

None.

Lower Taxa

None.

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

... more about "Andropogon floridanus"
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
anatomy +  and kranz +
Christopher S. Campbell +
Scribn. +
1 (?) +  and 3 (?) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 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 +
32 cm320 mm <br />0.32 m <br /> (61 cm610 mm <br />0.61 m <br />) +
pubescent +  and glabrous +
convolute +, folded +, flat +  and linear +
reduced +
2.9mm;5mm +
mostly erect;ascending +
spikelike +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Florida bluestem +
much-branched +
purple +  and reddish +
70 cm700 mm <br />0.7 m <br /> (210 cm2,100 mm <br />2.1 m <br />) +
not woody +
Fla. +, Ala. +  and Ga. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
4 cm40 mm <br />0.04 m <br /> (5.9 cm59 mm <br />0.059 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
with inconspicuous veins +  and veined +
fimbriate +  and cupulate +
solid +  and hollow +
pubescent +  and glaucous +
photosynthetic +
not aromatic +
coriaceous +
0.04 cm0.4 mm <br />4.0e-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 /> (?) +
2 cm20 mm <br />0.02 m <br /> (?) +  and 10 cm100 mm <br />0.1 m <br /> (?) +
2.5 cm25 mm <br />0.025 m <br /> (?) +  and 3.7 cm37 mm <br />0.037 m <br /> (?) +
dry +  and fleshy +
elongate +
pedicellate +  and sessile +
in triplets +  and paired +
well-developed +
usually smaller +  and reduced +
0.44 cm4.4 mm <br />0.0044 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Andropogon floridanus +
Andropogon sect. Leptopogon +
species +
membranous +
sessile-pedicellate +
inconspicuous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +
usually densely obpyramidal +  and oblanceolate +