This genus was first recognized as distinct in 1990. It comprises high elevation species from the Tibetan Plateau and adjoining regions all of which, so far as is known, are hexaploids having the St, Y and P genomes.
| Kengylia alatavica (Drobov) J.L. Yang et al. | ||
| Kengylia alatavica (Drobov) J.L. Yang et al. var. alatavica | ||
| Kengylia alatavica var. longiglumis (Keng & S.L. Chen) Yen et al. | ||
| Kengyilia batalinii | ||
| Kengyilia batalinii (Krasssnov) J.L. Yang et al. var. batalinii | ||
| Kengyilia batalinii var. nana (J.L. Yang et al.) Yen et al. | ||
| Kengyilia batalinii var. villosissima Roshevitz ex Yen et al. | ||
| Kengyilia carinata (Ovczinnikov & Sidorenko) Yen et al. | ||
| Kengyilia eremopyroides Nevski exYen at al. | ||
| Kengyilia geminata (Keng & S.L. Chen) S.L. Chen | ||
| Kengyilia gobicola C. Yen & J.L. Yang | ||
| Kengyilia grandiglumis (Keng ex Keng & S.L. Chen) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia grandiglumis (Keng ex Keng & S.L. Chen) J.L. Yang, C. Yen & B.R. Baum var. grandiglumis | ||
| Kengyilia grandiglumis var. laxiuscula (Melderis) L.B. Cai | ||
| Kengyilia guidenensis C. Yen, J.L. Yang & B.R. Baum | ||
| Kengyilia habahenensis B.R. Baum, C. Yen & J.L. Yang | ||
| Kengyilia hejingensis L.B. Cai & D.F. Cui | ||
| Kengyilia hirsuta (Keng) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia hirsuta (Keng) J.L. Yang, C. Yen & B.R. Baum var. hirsuta | ||
| Kengyilia hirsuta var. obviaristata L.B. Cai | ||
| Kengyilia hirsuta var. tahopaica (Keng) L.B. Cai | ||
| Kengyilia hirsuta var. variabilis (Keng) L.B. Cai | ||
| Kengyilia kaschgarica (D.F. Cui) L.B. Cai | ||
| Kengyilia kokonorica (Keng ex Keng & S.L. Chen) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia kryloviana (Schischkin) Yen et al. | ||
| Kengyilia laxiflora (Keng) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia laxistachya L.B. Cai & D.F. Cui | ||
| Kengyilia laxiuscula (Melderis) Tzvelev | ||
| Kengyilia leiantha (Keng) L.B. Cai | ||
| Kengyilia longiaristata S.L. Lu & Y.H.Wu | ||
| Kengyilia longiglumis (Keng) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia melanthera (Keng) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia melanthera (Keng) J.L. Yang, C. Yen & B.R. Baum var. melanthera | ||
| Kengyilia melanthera var. tahopaica (Keng) S.L. Chen | ||
| Kengyilia mutica (Keng ex Keng & S.L. Chen) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia nana J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia obviaristata (L.B. Cai) L.B. Cai | ||
| Kengyilia pamirica J.L. Yang & C. Yen | ||
| Kengyilia pendula L.B. Cai | ||
| Kengyilia pulcherrima (Grossheim) Yen et al. | ||
| Kengyilia rigidula (Keng) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia rigidula (Keng) J.L. Yang, C. Yen & B.R. Baum var. rigidula | ||
| Kengyilia rigidula var. intermedia (Keng) S.L. Chen | ||
| Kengyilia rigidula var. trichocolea L.B. Cai | ||
| Kengyilia shawanensis L.B. Cai | ||
| Kengyilia stenachyra (Keng ex Keng & S.L. Chen) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia tahelacana J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia thoroldiana (Oliv.) J.L. Yang, C. Yen & B.R. Baum | ||
| Kengyilia thoroldiana (Oliv.) J.L. Yang, C. Yen & B.R. Baum var. thoroldiana | ||
| Kengyilia thoroldiana var. laxiuscula (Melderis) S.L. Chen | ||
| Kengyilia thoroldiana var. melanthera (Keng) L.B. Cai | ||
| Kengyilia zhaosuensis J.L. Yang, C. Yen & B.R. Baum |