| Name | Aster diffusus var. horizontalis (Desfontaines) A. Gray |
| Authorship | (Desfontaines) A. Gray |
| Rank | Variety |
| Placed in | Aster diffusus Aiton |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aster diffusus var. horizontalis (Desfontaines) A. Gray |
| Identification made in | [no date] (1) |
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