Common Western Needle Grass

Stipa occidentalis var. pubescens

Stipa parishii

Parish Achnatherum

Stipa parishii var. parishii

Pinewoods Needle Grass

Stipa pinetorum

Purple Needlegrass

Stipa pulchra

Desert Stipa

Stipa speciosa

Stillman's Stipa

Stipa stillmanii

Thurber's Needlegrass

Stipa thurberiana

Webber's Needle Grass

Stipa webberi