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CCDB → Angiosperms → Compositae → Carduus → Carduus thoermeri Weinm.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Carduus thoermeri Weinm. | Carduus nutans subsp. leiophyllus (Petrovič) Stoj. & Stef. | 22(1) | Asteracea | Kuzmanov et al. 1991 Fitologija (Sofia) | |||
| Carduus thoermeri Weinm. | Carduus nutans subsp. leiophyllus (Petrovič) Stoj. & Stef. | 16 | IPCN online | Kuzmanov, B. A., S. B. Georgieva & V. A. Nikolova. 1986. Chromosome numbers of Bulgarian flowering plants. I. Fam. Asteraceae. Fitologija 31: 71–74. | |||
| Carduus thoermeri Weinm. | Carduus nutans subsp. leiophyllus (Petrovič) Stoj. & Stef. | 16 | IPCN online | Krasnikov, A. A. 1991. Chromosome numbers in some species of vascular plants from Novosibirsk region. Bot. Žhurn. (Moscow & Leningrad) 76: 476–479. | |||
| Carduus thoermeri Weinm. | Carduus nutans subsp. leiophyllus (Petrovič) Stoj. & Stef. | 22 | IPCN online | Kuzmanov, B. A., S. B. Geogieva & V. T. Nikolova. 1991. Karyological study of Bulgarian plants from the family Compositae. IV. Tribus Cardueae Cass. Fitologija 39: 3–22. |