Pennisetum setaceum

An African grass that spreads aggressively by seed and forms dense clumps, choking out native plants and altering wildlife habitat. Fountain grass is an extreme fire hazard to homes, native plants and animals.  Fountain grass comes in many varieties. All should be considered invasive until tested and verified. No variety is recommended
for planting.
Other grasses to avoid:
Kikuyu grass
Pennisetum clandestinum
Feather top
Pennisetum villosum
Pampas grass
Cortaderia selloana

Desert spoon Dasylirion wheeleri
A symmetrical and graceful agave-like plant with long, slender, blue-green, toothed leaves arching from a central trunk reaching a height and width of 3 ft. Flowers bloom creamy white on stalks 10-12 ft tall in spring through summer.

Arizona cotton top Digitaria californica
A perennial bunch grass growing up to 3 ft tall. Produces erect flower stalks adorned by soft, delicate, fluffy white cottony seeds. It makes a striking display when planted in groups.

Bull grass Muhlenbergia emersleyi
Grows as a clumping perennial grass up to 5 ft tall with light pink flowering plumes blooming in summer. Makes a nice accent in rocky areas or flat terrain.

Other grasses to try:
Deer grass Muhlenbergia rigens
Bamboo muhly Muhlenbergia dumosa