| Anatis Sessé & Moc. ex Brongn., 1840 |
| Anatis rigida Brongn., 1840 |
| Asagraea Lindl., 1839 |
| Asagraea caricifolia (Schltdl.) Kunth, 1843 |
| Asagraea frigida (Schltdl. & Cham.) A. Lyons, 1906 |
| Asagraea officinalis (Schltdl. & Cham.) Lindl., 1839 |
| Asagraea tenuifolia (M. Martens & Galeotti) Kunth, 1843 |
| Askolame Raf., 1837 |
| Askolame biflora (Cav.) Raf., 1837 |
| Asteranthemum Kunth, 1850 |
| Asteranthemum stellatum (L.) Nieuwl., 1913 |
| Asteranthemum vulgare Kunth, 1850 |
| Asteranthemum vulgare var. uniflora (Pursh) Kunth, 1850 |
| Calochortoideae Thorne & Reveal ex Reveal, 2012 |
| Calochortus Pursh, 1813 |
| Calochortus ambiguus (M.E. Jones) Ownbey, 1940 |
| Calochortus balsensis García-Mend., 1991 |
| Calochortus barbatus (Kunth) J.H. Painter, 1911 |
| Calochortus barbatus subsp. barbatus (Kunth) J.H. Painter, 1911 |
| Calochortus barbatus subsp. chihuahuanus J.H. Painter, 1911 |