_cryptandrus_ (Torr.) A. Gray sand d. _flexuosus_ (Thurb.) Rydb. mesa d. _giganteus_ Nash giant d. _heterolepis_ (A. Gray) A. Gray prairie d. _interruptus_ Vasey black d. _neglectus_ Nash puffsheath d. _poiretii_ (Roem. & Schult.) Hitchc. rattail smutgrass _pyramidatus_ (Lam.) Hitchc. whorled d. _texanus_ Vasey Texas d. _vaginiflorus_ (Torr.) Wood poverty d. _wrightii_ Munro ex Scribn. sacaton _Stenotaphrum secundatum_ (Walt.) Kuntze St. augustinegrass _Stipa_ L. needlegrass _cernua_ Stebbins & Love nodding n. _columbiana_ Macoun subalpine n. _comata_ Trin. & Rupr. needleandthread _leucotricha_ Trin. & Rupr. Texas n. _neomexicana_ (Thurb.) Scribn. New Mexico feathergrass _occidentalis_ Thurb. western n. _pulchra_ Hitchc. purple n. _robusta_ (Vasey) Scribn. sleepygrass _spartea_ Trin. porcupinegrass _viridula_ Trin. green n. X _Stiporyzopsis caduca_ (Beal) B. L. Johnson & Rogler (_Oryzopsis hymenoides_ X _Stipa viridula_) Mandan ricegrass _Themeda triandra_ Forsk. themeda _Tragus_ Hall. burgrass _Trichachne_ Nees cottontop _californica_ (Benth.) Chase Arizona c. _patens_ Swallen Texas c. _Trichloris_ Fourn. trichloris _mendocina_ (Phil.) Kurtz[36] twoflower t. _pluriflora_ Fourn. fourflower t. _Tridens_ Roem. & Schult. tridens _albescens_ (Vasey) Woot. & Standl. white t. _elongatus_ (Buckl.) Nash rough t. _flavus_ (L.) Hitchc. purpletop _muticus_ (Torr.) Nash slim t. _pilosus_ (Buckl.) Hitchc. hairy t. _pulchellus_ (H.B.K.) Hitchc. fluffgrass _strictus_ (Nutt.) Nash longspike t. _Triplasis purpurea_ (Walt.) Chapm. purple sandgrass _Tripsacum dactyloides_ (L.) L. eastern gamagrass _Trisetum_ Pers. trisetum _flavescens_ (L.) Beauv. yellow t. _spicatum_ (L.) Richt. spike t. _Triticum_ L. wheat _aestivum_ L. common w. _dicoccum_ Schrank emmer _durum_ Desf. durum w. _monococcum_ L.