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CCDB → Angiosperms → Amaryllidaceae → Allium → Allium howellii Eastw.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Allium howellii Eastw. | Allium howellii Eastw. | 14 | IPCN online | JACOBSEN, T. D. & M. Ownbey. 1976. In IOPB chromosome number reports LI. Taxon 25: 155–164. | |||
| Allium howellii var. howellii | Allium howellii Eastw. | 14 | eFlora | ||||
| ! | Allium howellii Eastw. | Allium howellii Eastw. | 14 | Fedorov, 1974 | Aase (Munz 1959) | ||
| Allium howellii Eastw. | Allium howellii Eastw. | 7 | Cave1959 | Aa se in M. & K. 1959 |