Spodiopogon sibiricus

Trin.
Common names: Silver spike
Treatment appears in FNA Volume 25. Treatment on page 609.

Plants rhizomatous. Culms 90-150 cm tall, 2-4 mm thick. Basal leaves bladeless or with reduced blades; cauline sheaths mostly glabrous, but pilose at the collar; ligules of cauline leaves 2-3 mm, ciliate on the erose margin; cauline blades to 35 cm long, 8-20 mm wide, pilose on both surfaces, margins ciliate near the base, cilia papillose-based. Panicles 12-20 cm long, 2-4 cm wide, shortly exserted; rachises glabrous, smooth; primary branches 2-6 cm; rames 2-3.5 cm. Spikelets 4.5-5.5 mm. Lower glumes pilose throughout, 5-9-veined; upper glumes of the sessile spikelets pilose on the margins, those of the pedicellate spikelets pilose throughout; callus hairs about 1/4 as long as the spikelets; awns 0.7-1.2 cm; anthers of the sessile spikelets about 2 mm, those of the pedicellate spikelets about 3 mm. 2n = 40, 42.

Discussion

Spodiopogon sibiricus is native to the grasslands of the montane regions that extend from central China to northeastern Siberia. It is grown as an ornamental in Canada and the contiguous United States.

Selected References

None.

Lower Taxa

None.

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

... more about "Spodiopogon sibiricus"
anatomy +  and kranz +
Mary E. Barkworth +
1 (?) +  and 3 (?) +
geniculate +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
keeled +  and rounded +
with reduced blades +  and bladeless +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
lanceolate +  and broadly linear +
reduced +
spikelike +
hairy +  and glabrous +
0 cm0 mm <br />0 m <br /> (35 cm350 mm <br />0.35 m <br />) +
pilose +  and glabrous +
papillose-based +
Silver spike +
branching +  and simple +
purple +  and reddish +
90 cm900 mm <br />0.9 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
40 cm400 mm <br />0.4 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
acute +  and keeled +
unequal +
uncinate +
pedunculate +  and multiple-stalked +
axillary +  and subtending +
solid +  and hollow +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
photosynthetic +
not aromatic +
coriaceous +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
pedicellate +
12cm +  and 20cm +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not fused +
dry +  and fleshy +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
elongate +
sessile-pedicellate +
pedicellate +  and sessile +
in triplets +  and paired +
sterile +  and bisexual +
lanceolate +
usually smaller +  and reduced +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Spodiopogon sibiricus +
Spodiopogon +
species +
membranous +
sessile-pedicellate +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +