| Name | Amsonia tomentosa var. stenophylla Kearney & Peebles |
| Authorship | Kearney & Peebles |
| Rank | Variety |
| Placed in | Amsonia tomentosa Torrey & Fremont |
| Citation | 1939 J. Wash. Acad. Sci. 29: 487 |
| Holdings | 21 Specimens held in the Harvard University Herbaria identified as Amsonia tomentosa var. stenophylla Kearney & Peebles |
| Identification made in | [no date] (14), 1985 (7) |