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Varieties with a similar appearance
Red McClure
| Characters compared | Value |
| Primary tuber flesh colour: | White |
| Tuber shape: | Round |
| Tuber eye depth: | Shallow |
| Variety | Characters matched | Sources |
| Draga (1970) | 3/3 | 5 |
| Katahdin | 3/3 | 4 |
| Wauseon | 3/3 | 4 |
| Atlantic | 3/3 | 3 |
| Flourball | 3/3 | 3 |
| Great Scot | 3/3 | 3 |
| Iskra | 3/3 | 3 |
| Istok | 3/3 | 3 |
| Fortyfold | 3/3 | 3 |
| Murmanskij | 3/3 | 2 |
| Sedov | 3/3 | 2 |
| Meta (1993) | 3/3 | 2 |
| Lewis Black | 3/3 | 2 |
| Stirling Castle | 3/3 | 2 |
| Doon Pearl | 3/3 | 2 |
| Hunters Gold | 3/3 | 2 |
| Volzhanin | 3/3 | 2 |
| Argyll Favourite | 3/3 | 2 |
| Daku | 3/3 | 2 |
| Abnaki | 3/3 | 2 |
| Boroviny | 3/3 | 1 |
| Othello | 3/3 | 1 |
| Rocket | 3/3 | 1 |
| Red McClure | 3/3 | 1 |
| Kameraz | 3/3 | 1 |
| Odesskii 24 | 3/3 | 1 |
| Morna | 3/3 | 1 |
| Pioneer | 3/3 | 1 |
| Somerset | 3/3 | 1 |
