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CCDB → Angiosperms → Violaceae → Viola → Viola howellii A. Gray
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Viola howellii A. Gray | Viola howellii A. Gray | c.80 | Darlington, 1955 | Gershoy 1934 |