Own-rooted: ungrafted vine (pied franc)
The standard
A documented root origin states whether a vine stands on its own root or on a rootstock, rather than carrying own-rootedness as a mere label.
Criteria
- Growth on its own root is documented, not assumed
- The site's resistance to phylloxera is named, such as pure sand
- The statement distinguishes own-rooted from replanted nearby
- It stays bound to the individual parcel
Distinction
Own-rooted ≠ grafted: the grafted vine carries a foreign rootstock, the own-rooted one does not. Own-rooted ≠ old: the documented root origin says nothing about the vine's age, only about its root.