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CCDB → Angiosperms → Apocynaceae → Amsonia → Amsonia tomentosa Torr. & Frém.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Amsonia tomentosa var. tomentosa | Amsonia tomentosa Torr. & Frém. | 11 | IPCN online | Parfitt, B. D., D. J. Pinkava, D. Rickel, D. Fillipi, B. Eggers & D. J. Keil. 1990. Documented chromosome numbers 1990: 1. Miscellaneous North American vascular plants. Sida 14: 305–308. |