| Name | Gomphocarpus tometosus var. xantii A. Gray | 
| Authorship | A. Gray | 
| Rank | Variety | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Gomphocarpus tometosus (Torrey) A. Gray | 
| Citation | 1878 Syn. Fl. N. Amer. 2(1): 100 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Gomphocarpus tometosus var. xantii A. Gray | 
| Identification made in | [no date] (2) | 
