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CCDB → Angiosperms → Rubiaceae → Asperula → Asperula rigida Sibth. & Sm.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Asperula rigida Sibth. & Sm. | Asperula rigida Sibth. & Sm. | 22 | Flora Europaea | Ehrendorfer, ined. | ||
| Asperula rigida Sibth. & Sm. | Asperula rigida Sibth. & Sm. | 22 | IPCN online | Ehrendorfer, F. 1982. In D.M. Moore, Flora Europaea Check-list and Chromosome Index.Cambridge Univ. Press. Pp. 168–173, 221–222. |