| Family | ASTERACEAE |
| Genus species | Hymenoxys grandiflora (Torr. & A.Gray) K.F.Parker trib. Helenieae |
| Bibliography | Madrońo 10: 159 (1950) |
| Native Range | nw. USA to Utah |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 2600-4300m |
| Description | taproot, leaves 1-2-pinnatipartite, segments linear, hirsute, glandular-punctate, capitula solitary, large, disc 15-35mm wide, ligules 15-35, 1-3cm long |
| Size | 10-30cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C cuttings in late spring and late summer |
| Synonyms | Actinea grandiflora (Torr. & A.Gray) Kuntze Actinella grandiflora Torr. & A.Gray Cephalophora grandiflora (Torr. & A.Gray) Walp. Ptilepida grandiflora (Torr. & A.Gray) Rose Rydbergia grandiflora (Torr. & A.Gray) Greene Tetraneuris grandiflora (Torr. & A.Gray) K.F.Parker |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, WYO Wyoming) 76 Southwestern U.S.A. (UTA Utah) |