| Name | Pinus ponderosa var. jeffreyi (Balfour) S. Watson |
| Authorship | (Balfour) S. Watson |
| Rank | Variety |
| Placed in | Pinus ponderosa P. Lawson & C. Lawson |
| Holdings | 15 Specimens held in the Harvard University Herbaria identified as Pinus ponderosa var. jeffreyi (Balfour) S. Watson |
| Identification made in | [no date] (15) |
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