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CCDB → Angiosperms → Compositae → Parthenium → Parthenium confertum var. lyratum (A. Gray) Rollins
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Parthenium confertum var. lyratum (A. Gray) Rollins | Parthenium confertum A. Gray | 35+1I(1) | Asteracea | Solbrig et al. 1972 Amer. J. Bot. | |||
| Parthenium confertum var. lyratum (A. Gray) Rollins | Parthenium confertum A. Gray | 36 | IPCN online | Keil, D. J. & T. F. Stuessy. 1975. Chromosome counts of Compositae from the United States, Mexico and Guatemala. Rhodora 77: 171–195. | |||
| ! | Parthenium confertum var. lyratum (A. Gray) Rollins | Parthenium confertum A. Gray | 35II+1I | IPCN72 | SOLBRIG, O.T., D.W. KYHOS, M. POWELL, & P.H. RAVEN. 1972. Chromosome numbers in Compositae VIII: Heliantheae. Amer. J. Bot. 59: 869-878. | ||
| ! | Parthenium confertum var. lyratum (A. Gray) Rollins | Parthenium confertum A. Gray | 72, c.68, 68,34 | Cave1962 | Rollins 1950 |