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CCDB → Angiosperms → Apiaceae → Osmorhiza → Osmorhiza longistylis (Torr.) DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Osmorhiza longistylis (Torr.) DC. | Osmorhiza longistylis (Torr.) DC. | 22 | IPCN online | Love, A. & D. Love. 1982. In: IOPB chromosome number reports LXXVI. Taxon 31: 583–587. | |||
| ! | Osmorhiza longistylis (Torr.) DC. | Osmorhiza longistylis (Torr.) DC. | 22 | Fedorov, 1974 | Wansche1 | ||
| ! | Osmorhiza longistylis (Torr.) DC. | Osmorhiza longistylis (Torr.) DC. | 22 | Fedorov, 1974 | Bell, COI stance 1957 | ||
| ! | Osmorhiza longistylis (Torr.) DC. | Osmorhiza longistylis (Torr.) DC. | 22 | Darlington, 1955 | |||
| ! | Osmorhiza longistylis (Torr.) DC. | Osmorhiza longistylis (Torr.) DC. | 11 | Cave1957 | Bell & Constance |