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CCDB → Angiosperms → Compositae → Arnica → Arnica attenuata Greene
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Arnica attenuata Greene | Arnica angustifolia Vahl | 57 | IPCN online | Love, A. & D. Love. 1975. In IOPB chromosome number reports XLVIII. Taxon 24: 367–372. |