| Kalinia obtusiflora (E. Fourn.) H.L. Bell & Columbus, 2012 |
| Kielboul Adans., 1763 |
| Kiharapyrum Á. Löve, 1982 |
| Koeleria Pers., 1805 |
| Koeleria É. Desv., 1854 |
| Koeleria arkansana Nutt. ex Scribn., 1885 |
| Koeleria avenacea (Kunth) Spreng., 1825 |
| Koeleria brachystachya DC., 1813 |
| Koeleria californica (Domin) Beetle, 1982 |
| Koeleria calycina (Loefl.) DC. & Lam., 1815 |
| Koeleria campestris Phil., 1858 |
| Koeleria canescens Torr. ex Trin., 1836 |
| Koeleria cristata Pers., 1805 |
| Koeleria elegantula Domin, 1907 |
| Koeleria gerardii (Vill.) Shinners, 1956 |
| Koeleria gracilis Pers., 1805 |
| Koeleria gracilis f. colorata Domin, 1907 |
| Koeleria gracilis f. congesta Domin, 1907 |
| Koeleria gracilis f. densevestita Domin, 1907 |
| Koeleria gracilis f. filifolia Domin, 1907 |