| Name | Paysonia grandiflora (A. Gray) O'Kane & Al-Shehbaz |
| Authorship | (A. Gray) O'Kane & Al-Shehbaz |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Paysonia O'Kane & Al-Shehbaz |
| Holdings | 68 Specimens held in the Harvard University Herbaria identified as Paysonia grandiflora (A. Gray) O'Kane & Al-Shehbaz |
| Identification made in | [no date] (17), 1966 (2), 1970 (35), 1972 (2), 1989 (2), 1994 (5), 2009 (5) |