| Family | APIACEAE |
| Genus species | Cymopterus hendersonii (J.M.Coult. & Rose) Cronquist |
| Bibliography | Vasc. Pl. Pacif. N.W. [C.L.Hitchc. & al.] 3: 527 (1961) |
| Native Range | w. USA to New Mexico |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Altitude | 1800-2200m |
| Description | taproot, acaulescent, leaves in outline narrowly oblong, bipinnatisect, ultimate segments rigid, acute, umbels above leaves, involucre absent, involucel bracts conspicuous |
| Size | 10-30cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed when ripe or as soon as possible |
| Synonyms | Aletes hendersonii (J.M.Coult. & Rose) W.A.Weber Aletes longiloba (Rydb.) W.A.Weber Cymopterus longilobus (Rydb.) W.A.Weber Pseudocymopterus anisatus var. longilobus (Rydb.) Tidestr. Pseudocymopterus hendersonii J.M.Coult. & Rose Pseudopteryxia hendersonii (J.M.Coult. & Rose) Rydb. Pseudopteryxia longiloba Rydb. Pteryxia hendersonii (J.M.Coult. & Rose) Mathias & Constance |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, WYO Wyoming) 76 Southwestern U.S.A. (NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |
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