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CCDB → Angiosperms → Compositae → Arnica → Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl. | Arnica angustifolia Vahl | 19(3) | 38, 57(1, 5) | Asteracea | Wolf 1980 Amer. J. Bot. | |
| ! | Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl. | Arnica angustifolia Vahl | 19(3) | 38, 57(1, 5) | Asteracea | Wolf 1980 Amer. J. Bot. | |
| ! | Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl. | Arnica angustifolia Vahl | 76(2) | Asteracea | Wolf 1987 Rhodora | ||
| ! | Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl. | Arnica angustifolia Vahl | 76 | IPCN online | Wolf, S. J. 1987. Cytotaxonomic studies in the genus Arnica (Compositae: Senecioneae). Rhodora 89: 391–400. | ||
| ! | Arnica angustifolia subsp. attenuata (Greene) G. W. Douglas & Ruyle-Dougl. | Arnica angustifolia Vahl | 19 | 38,57 | IPCN online | Wolf, S. J. 1980. Cytogeographical studies in the genus Arnica (Compositae : Senecioneae). I. Amer. J. Bot. 67: 300–308. |