| Name | Silvianthus tonkinensis (Gagnepain) Ridsdale |
| Authorship | (Gagnepain) Ridsdale |
| Rank | Species |
| Placed in | Silvianthus |
| Citation | 1978 Blumea 24(1): 42 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Silvianthus tonkinensis (Gagnepain) Ridsdale |
| Identification made in | 2016 (1) |
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