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CCDB → Angiosperms → Compositae → Symphyotrichum → Aster occidentalis var. occidentalis
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Aster occidentalis var. occidentalis | Symphyotrichum spathulatum (Lindl.) G. L. Nesom | 8 II, 16 II | IPCN online | Jones, A. G. 1980. Data on chromosome numbers in Aster (Asteraceae) with comments on the status and relationships of certain North American species. Brittonia 32(2): 240–261. |