The red grape variety is identical to or a clone of the French variety Gamay. The name is probably derived from the French "dérober" (to steal). It is cultivated under this name exclusively around the municipality of Cully in the Lavaux area in the canton of Vaud. The vine, which is threatened with extinction, was saved in 1966. In 2002, an association was founded to preserve it. No stocks were recorded under the name Plant Robert in 2016 (Kym Anderson).
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