Pussy Willow Pompoms

Actual size is about 3/4" per blossom.  Any idea what kind of Willow?

Central Oregon is not a swamp.  It is commonly referred to as "high desert," though high is a relative term.  At 3800 feet, there are many other places in the state that are higher.  The surprise of my morning walk was finding a willow tucked in amongst the pines flashing its little pussy poms.   Most willows like water.  Sandy, volcanic soil holds little of it for the brave vegetation that grows here.  I'm clueless as to the type of willow tough enough to hold its own in this dry setting. Any knowings out there?