| Name | Incarvillea mairei f. grandiflora (Wehrhahn) Grierson |
| Authorship | (Wehrhahn) Grierson |
| Rank | Forma |
| Placed in | Incarvillea mairei (H. Léveillé) Grierson |
| Citation | 1961 Notes Roy. Bot. Gard. Edinburgh 23(3): 344. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Incarvillea mairei f. grandiflora (Wehrhahn) Grierson |
| Identification made in | [no date] (1) |
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