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CCDB → Gymnosperms → Pinaceae → Larix → Larix occidentalis Nutt.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Larix occidentalis Nutt. | Larix occidentalis Nutt. | 24 | IPCN online | Hizume, M. 1988. Karyomorphological studies in the family Pinaceae. Mem. Fac. Educ. Ehime Univ., Ser. 3, Nat. Sci. 8: 1–108. | |||
| Larix occidentalis Nutt. | Larix occidentalis Nutt. | 24 | IPCN online | Hizume, M. & A. Tanaka. 1990. Fluorescent chromosome bandings in two American larches, Larix occidentalis and L. laricina. Kromosomo 58: 1979–1987. | |||
| ! | Larix occidentalis Nutt. | Larix occidentalis Nutt. | 24 | eFlora | |||
| ! | Larix occidentalis Nutt. | Larix occidentalis Nutt. | 24 | Darlington, 1955 | Sax & S. 1933 |