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.
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.