Phleum alpinum
As the name suggests, this is a plant of subalpine and alpine meadows. It is distinguished from Phleum pratense by having shorter inflorescences and inflated sheaths on the uppermost leaves.
An inflorescence in the La Sal Mountains, 6/18/06.
Inflorescences in the La Sals, 6/18/06. Note the inflated sheaths visible on the leaves.
Closer view of spikelets in the La Sal Mts., 6/18/06.