| Name | Cistanthe ambigua (S. Watson) Carolin ex Hershkovitz |
| Authorship | (S. Watson) Carolin ex Hershkovitz |
| Rank | Species |
| Placed in | Cistanthe Spach |
| Citation | 1990 Phytologia 68(4): 269 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Cistanthe ambigua (S. Watson) Carolin ex Hershkovitz |
| Identification made in | [no date] (10) |