Carex nebrascensis
Looks like a Carex. Very similar to Carex emoryi but with apiculate pistillate scales.
Plant habit near Mason Spring in the La Sal Mountains, Utah, 18 Jun 2006.
An inflorescence near Mason Spring in the La Sal Mountains, 18 Jun 2006.
Closer view of a pistillate spike near Mason Spring, 18 Jun 2006.