Bothriochloa longipaniculata

(Gould) Allred & Gould
Common names: Longspike silver bluestem
Synonyms: Bothriochloa saccharoides var. longipaniculata Andropogon saccharoides var. longipaniculata
Treatment appears in FNA Volume 25. Treatment on page 640.

Culms 60-150 (200) cm tall, 2-4 mm thick, robust; nodes glabrous or shortly hirsute. Leaves cauline, evenly distributed, glabrous, dark green; ligules 2.5-3 mm; blades 12-20 cm long, (3) 4-7 mm wide, flat to folded. Panicles 9-20 cm, narrowly lanceolate, silvery-white or light tan; rachises 7-15 cm, with numerous branches; branches 3-5 cm, shorter than the rachises, erect, without axillary pulvini, with multiple rames; rame internodes with a membranous groove wider than the margins, margins copiously hairy, hairs 3-8 mm, at least somewhat obscuring the spikelets. Sessile spikelets (3) 3.5-4.5 mm, narrowly ovate to lance¬olate, shiny green, apices acute; lower glumes hirtellous on the lower 1/2, hairs shorter than 0.8 mm, lacking a dorsal pit; awns 9-14 mm; anthers 1-2 mm. Pedicellate spikelets 1.8-2.8 mm, sterile. 2n = 120.

Discussion

Bothriochloa longipaniculata grows at 2-200 m, along roadsides and in fields, open woodlands, disturbed ground, and swales of the Gulf coastal prairie, often in heavy clay soil. Its range extends from southern Texas and Louisiana to northeastern Mexico and possibly Panama.

Selected References

None.

Lower Taxa

None.

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

0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
anatomy +  and kranz +
Kelly W. Allred +
(Gould) Allred & Gould +
1 (?) +  and 3 (?) +
geniculate +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
flat +  and folded +
reduced +
4mm;7mm +
spikelike +
flattened +, lanceolate +  and oblong +
Longspike silver bluestem +
purple +  and reddish +
60 cm600 mm <br />0.6 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
ascending +  and erect +
30 cm300 mm <br />0.3 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
not woody +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Tex. +, Miss. +  and La. +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
membranous +
uncinate +
0.8 cm8 mm <br />0.008 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
axillary +  and subtending +
solid +  and hollow +
distributed +
dark green +
photosynthetic +
not aromatic +
coriaceous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
hirsute +  and glabrous +
sessile-pedicellate +
heterogamous +
light tan +  and silvery-white +
lanceolate +
9 cm90 mm <br />0.09 m <br /> (20 cm200 mm <br />0.2 m <br />) +
fused +  and free +
dry +  and fleshy +
elongate +
pedicellate +  and sessile +
in triplets +  and paired +
well-developed +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Bothriochloa saccharoides var. longipaniculata +  and Andropogon saccharoides var. longipaniculata +
Bothriochloa longipaniculata +
Bothriochloa +
species +
membranous +
sessile-pedicellate +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +