- the European Cultivar Potato Database: data on tuber shape (>3800 observations), uniformity (>2300 observations) and size (>2000 observations).
- the British Potato Varieties Database, select Shape of tuber
- varieties in the Netherlands NIVAP (shape as well as size)
- French catalogue , criteria, select: Forme du tubercule, Grosseur des tubercules or Régularité géometrique de la forme.
- Neiker: >120 observations on tuber shape and 30 on size in downloadable data set (varieties).
- 104 clones at NordGen (also available uniformity of shape)