Spodiopogon sibiricus
frost grass, silver spike
90-150 cm tall, 2-4 mm thick.
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.
12-20 cm long, 2-4 cm wide, shortly exserted;
rachises glabrous, smooth;
primary branches 2-6 cm;
rames 2-3.5 cm.
4.5-5.5 mm.
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.
= 40, 42.
Spodiopogon sibiricus
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.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
