| Achillea L. | |
| Publ. & Syn. | Excluded: Achillea alpina subsp. sibirica (A. sibirica). |
| Notes | Elven and Korobkov: We have discussed the possible recognition of Ptarmica apart from Achillea. In a phylogenetic study (Guo et al. 2004), Ptarmica nested within Achillea. Ptarmica was also polyphyletic and its species must be divided on two sections. We keep Ptarmica inside Achillea. |
| Chromosomes | (1) 38 (2x). - North America (W). - Ornduff et al. (1967); Keil and Pinkava (1976). (2) 57 60 (3x). - North America (W). - Several reports. (3) ca. 76 (4x). - Canada. - Gervais et al. (1990). |
| Geography | North American (N): CAN. |
| Parent taxon | Asteraceae |
| Child taxa |
Achillea alpina L. Achillea millefolium L. Achillea ptarmica L. Achillea salicifolia Besser |
| PAF ID | 8614 |