| Name | Onosma waddellii f. latifolium W. T. Wang |
| Authorship | W. T. Wang |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Onosma waddellii Duthie |
| Citation | 2010 Guihaia 30(4): 431, f. 1D-E |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Onosma waddellii f. latifolium W. T. Wang |
| Identification made in | 2009 (2), 2011 (1) |