| Name | Senna mexicana var. chapmanii (Isely) H. S. Irwin & Barneby |
| Authorship | (Isely) H. S. Irwin & Barneby |
| Rank | Variety |
| Placed in | Senna mexicana (Jacquin) H. S. Irwin & Barneby |
| Citation | 1982 Mem. New York Bot. Gard. 35: 417 |
| Holdings | 38 Specimens held in the Harvard University Herbaria identified as Senna mexicana var. chapmanii (Isely) H. S. Irwin & Barneby |
| Identification made in | [no date] (38) |
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