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CCDB → Angiosperms → Compositae → Launaea → Launaea secunda (C. B. Clarke) Hook.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Launaea secunda (C. B. Clarke) Hook. | Launaea secunda (C. B. Clarke) Hook. | 9(1) | Asteracea | Razaq et al. 1994 Ann. Missouri Bot. Gard. | ||
| ! | Launaea secunda (C. B. Clarke) Hook. | Launaea secunda (C. B. Clarke) Hook. | 9 | IPCN65 | Mehra et al. 1965 | ||
| ! | Launaea secunda (C. B. Clarke) Hook. | Launaea secunda (C. B. Clarke) Hook. | 9 | IPCN online | Razaq, Z. A., A. A. Vahidy & S. I. Ali. 1994. Chromosome numbers in Compositae from Pakistan. Ann. Missouri Bot. Gard. 81: 800–808. | ||
| ! | Launaea secunda (C. B. Clarke) Hook. | Launaea secunda (C. B. Clarke) Hook. | 18 | IPCN67-71 | CHATTERJEE, T., & A.K. SHARMA. 1969. Cytotaxonomy of Cichoreae. Genetica 40: 577-590. | ||
| ! | Launaea secunda (C. B. Clarke) Hook. | Launaea secunda (C. B. Clarke) Hook. | 18 | Kumar, 1987 | Mehra, P.N. et al. 1965 ; Chatterjee, T. & Sharma, A.K. 1969 ; Gill, B.S., Gupta, R.C. & Kaur, S. 1980 |