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CCDB → Angiosperms → Compositae → Youngia → Youngia japonica (L.) DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | IAPT/IOPB | IAPT/IOPB Chromosome Data 12 | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8(1) | 16(1) | Asteracea | Tahara 1910 Bot. Mag. Tokyo (= J. Plant Res.) | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8(1) | 16(1) | Asteracea | Hsu 1970 Taiwania | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8(1) | Asteracea | Tahara 1910 Bot. Mag. Tokyo (= J. Plant Res.) | |||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | IPCN65 | Mehra et al. 1965 | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | IPCN online | Nishikawa, T. 1984. Chromosome counts of flowering plants of Hokkaido (7). J. Hokkaido Univ. Educ., Sect. 2B 35: 31–42. | |||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | IPCN online | Pak, J. H. 1991. A taxonomical review of Ixeris s.l. (Compositae---Lactuceae) Karyological and fruit wall characteristics. Korean J. Pl. Taxon. 21: 71–82. | |||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 5II | IPCN online | Byung-Yun, S., J. H. Park, M. J. Kwak, C. H. Kim & K. S. Kim. 1996. Chromosome counts from the flora of Korea with emphasis on Apiaceae. J. Pl. Biol. 39: 15–22. | |||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8II | IPCN online | Carr, G. D., R. M. King, A. M. Powell & H. Robinson. 1999. Chromosome numbers in Compositae. XVIII. Amer. J. Bot. 86(7): 1003–1013. | |||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8 | IPCN online | Kovanda, M. 1978. Chromosome numbers of miscellaneous United States dicotyledons. Rhodora 80: 431–440. | |||
| Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | IPCN online | Mathew, A. & P. M. Mathew. 1988. Cytological studies on the south Indian Compositae. Glimpses Pl. Res. 8: 1–177. | |||
| Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | IPCN online | Gupta, R. C. & B. S. Gill. 1989. Cytopalynology of north and central Indian Compositae. J. Cytol. Genet. 24: 96–105. | |||
| Youngia japonica subsp. japonica | Youngia japonica (L.) DC. | 16 | IPCN online | Pak, J. H., M. o. Lee, J.-s.Kim, I. Kim, B. B. Seo & S. d. Song. 2000. The identification of unrecorded subspecies of Youngia japonica. Korean J. Pl. Taxon. 30: 55–73. | |||
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 9 | IPCN72 | GUPTA, P.K . D.K. AGARWAL, & A.K. SRIVASTAVA. 1972. Further cytological investigations in Indian Compositae. Cytologia 37: 581-593. | ||
| Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | IPCN67-71 | JONES, S.B. Jr. 1968. Chromosome numbers in southeastern United States Compositae I. Bull. Torrey Bot. Club 95: 393-395. | |||
| ! | Youngia formosana (Hayata) H. Hara | Youngia japonica (L.) DC. | 8 | 16 | IPCN67-71 | HSU, c.-c. 1970. Preliminary chromosome studies on the vascular plants of Taiwan (III) The aster family, Compositae. Taiwania 15: 17-29. | |
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8 | IPCN67-71 | HSU, C.-c. 1967. Preliminary chromosome studies on the vascular plants of Taiwan (I). Taiwania No. 13: 117-130. | ||
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8 | IPCN67-71 | HSU, c.-c. 1970. Preliminary chromosome studies on the vascular plants of Taiwan (III) The aster family, Compositae. Taiwania 15: 17-29. | ||
| ! | Youngia japonica subsp. japonica | Youngia japonica (L.) DC. | 8 | IPCN67-71 | SHETTY, B. V. 1967. In IOPB chromosome number reports XIV. Taxon 16: 552-571. | ||
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 8 | IPCN73-74 | KAUL, V., & D. SINGH. 1972. Cytological studies in some members of Cichorieae (Compositael. Proc. Indian Sci. Congr. Assoc. 59( III): 366. | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | IPCN73-74 | MIYAGI, C. 1974. Chromosome numbers in sperrnatophytes from Okinawa Islands (II). Bilo. Mag. Okinawa 10: 17-25. | |||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 16 | Kumar, 1987 | Babcock, E.B. & Stebbins, G.L. 1937 ; Babcock, E.B. eta!. 1937 ; Nisioka, T. 1956; Mehra, P.N. & Sidhu, S.S. 1960; Borgmann, E. 1964; Hsu, C.-C. 1967, 1970 ; Kaul, V. & Singh, D. 1972 | ||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 18 | Kumar, 1987 | Gupta, P.K. et al. 1972 | ||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 16 | Kumar, 1987 | Tahara, M. 1910a ; Mann, M.C. 1922, 1925 ; Babcock, E.B. & Mann-Lesley, M. 1926 ; Hollingshead, L. & Babcock, E.B. 1930 ; Chuang, T.I. et al. 1963 ; Mehra, P.N. et al. 1965 ; Jones, S.B. Jr 1968 | ||
| ! | Crepis japonica subsp. japonica | Youngia japonica (L.) DC. | 16 | Kumar, 1987 | Shetty, B.V. 1967 | ||
| ! | Crepis lyrata (Poir.) Benth. | Youngia japonica (L.) DC. | 12 | eFlora | |||
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | eFlora | |||
| Youngia japonica subsp. japonica | Youngia japonica (L.) DC. | 16 | eFlora | ||||
| ! | Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | Darlington, 1955 | Japan | ||
| Youngia japonica (L.) DC. | Youngia japonica (L.) DC. | 16 | Cave1956 | Nisioka | |||
| ! | Crepis japonica (L.) Benth. | Youngia japonica (L.) DC. | 8 | Cave1963 | Chuang et al. 1963 |