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Varieties with a similar appearance
Gladstone
| Characters compared | Value |
| Maturity: | Intermediate to late |
| Foliage cover: | Moderate to good |
| Flower colour: | White |
| Flower frequency: | Occasional |
| Berries: | Occasional |
| Light sprout colour: | Pink |
| Tuber skin colour: | Part red |
| Primary tuber flesh colour: | White |
| Tuber shape: | Oval |
| Tuber eye depth: | Shallow |
| Tuber skin texture: | Smooth to intermediate |
| Variety | Characters matched | Sources |
| Gladstone | 11/11 | 2 |
| Escort | 8/11 | 7 |
| Cara | 8/11 | 5 |
| Tertus | 8/11 | 3 |
| Pentland Ivory | 8/11 | 3 |
| Maris Piper | 8/11 | 2 |
| Obelix | 7/11 | 6 |
| Katahdin | 7/11 | 4 |
| Tenor | 7/11 | 4 |
| Picasso | 7/11 | 4 |
| Lutetia | 7/11 | 4 |
| Carlingford | 7/11 | 3 |
| Aula | 7/11 | 3 |
| Dr McIntosh | 7/11 | 3 |
| Pentland Crown | 7/11 | 3 |
| Royal Kidney | 7/11 | 3 |
| Pentland Dell | 7/11 | 3 |
| Sebago | 7/11 | 3 |
| Ditta | 7/11 | 3 |
| Wilja | 7/11 | 3 |
| Gatcinsky | 7/11 | 3 |
| Bornia | 7/11 | 3 |
| Pentland Javelin | 7/11 | 3 |
| Sira | 7/11 | 2 |
| Mansour (1980) | 7/11 | 2 |
| Volzhanin | 7/11 | 2 |
| Majestic | 7/11 | 2 |
| Feja | 7/11 | 2 |
| Pentland Hawk | 7/11 | 2 |
| Erdgold | 7/11 | 2 |
| Long Blue | 7/11 | 2 |
| Aspotet | 7/11 | 2 |
| Shannon | 7/11 | 2 |
| Redskin | 7/11 | 2 |
| Ideal | 7/11 | 2 |
| Marius | 7/11 | 2 |
| Aurelia | 7/11 | 2 |
| Stolovyj 19 | 7/11 | 1 |
| Glamis | 7/11 | 1 |
| Ambo | 7/11 | 1 |
| Shelagh | 7/11 | 1 |
