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CCDB → Angiosperms → Bignoniaceae → Catalpa → Catalpa bignonioides Walt.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Catalpa bignonioides Walt. | Catalpa bignonioides Walter | 20 | IPCN67-71 | MEHRA, P.N., & K.S. BAWA. 1969. Chromosomal evolution in tropical hardwoods. Evolution 23: 466-481. |