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CCDB → Angiosperms → Apiaceae → Heracleum → Heracleum orsinii Guss.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Heracleum orsinii Guss. | Heracleum sphondylium subsp. orsinii (Guss.) H. Neumayer | 22 | CHROBASE | BALTISBERGER M. - 1991 (1990). Numeri cromosomici per la flora italiana: 1208-1230.. Inform. Bot. Ital. , 22(3): 216-226. | |||
| Heracleum orsinii Guss. | Heracleum sphondylium subsp. orsinii (Guss.) H. Neumayer | 22 | IPCN online | Baltisberger, M. 1990. Numeri cromosomici per la flora Italiana: 1208--1230. Inform. Bot. Ital. 22: 216–226. |