Alternatives to Bluegrass for the Larger Areas in a Landscape

I am providing a few slides for a colleague of mine for the Southern Colorado Sustainability Conference upcoming next week on November 18 and 19 in Colorado Springs.  The portion of the presentation I am providing is on Xeriscape and how it relates to residential applications and in particular residential retrofits.  In the provided slides I focused on the following statement: Zeroscape IS NOT Xeriscape.
The following images from High Country Gardens were included in the presentation as alternative plant material for Kentucky Bluegrass:

Blue Grama Grass can be mowed to 3" in Height or unmowed at 12" if desired. It requires supplemental irrigation only for establishment.

Legacy Buffalograss can be mowed to 2" in height or it can remain unmowed at 8". It requires supplemental irrigation only for establishment.