| Name | Ephedra nevadensis var. aspera (Engelmann ex S. Watson) L. D. Benson |
| Authorship | (Engelmann ex S. Watson) L. D. Benson |
| Rank | Variety |
| Placed in | Ephedra nevadensis S. Watson |
| Citation | 1943 Amer. J. Bot. 30(3): 232 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ephedra nevadensis var. aspera (Engelmann ex S. Watson) L. D. Benson |
| Identification made in | 1942 (1) |
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