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CCDB → Angiosperms → Compositae → Arnica → Arnica gracilis Rydb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Arnica gracilis Rydb. | Arnica gracilis Rydb. | 38(1) | Asteracea | Wolf 1980 Amer. J. Bot. | |||
| Arnica gracilis Rydb. | Arnica gracilis Rydb. | 76 | IPCN online | Wolf, S. J. 1987. Cytotaxonomic studies in the genus Arnica (Compositae: Senecioneae). Rhodora 89: 391–400. | |||
| Arnica gracilis Rydb. | Arnica gracilis Rydb. | 38 | IPCN online | Wolf, S. J. 1980. Cytogeographical studies in the genus Arnica (Compositae : Senecioneae). I. Amer. J. Bot. 67: 300–308. | |||
| Arnica gracilis Rydb. | Arnica gracilis Rydb. | 57 | IPCN online | Straley, G. B. 1982. In IOPB chromosome number reports LXXVI. Taxon 31: 579. | |||
| ! | Arnica latifolia var. gracilis (Rydb.) Cronquist | Arnica gracilis Rydb. | c.76 | IPCN67-71 | ORNDUFF, R., T. MOSQUIN, D. W. KYHOS, & P. H. RAVEN. 1967. Chromosome numbers in Compositae. VI. Senecioneae. II. Am. Jour. Bot. 54: 205-213. | ||
| ! | Arnica gracilis Rydb. | Arnica gracilis Rydb. | 57,76 | eFlora |