Peloursin

[5] In the 1860s, French botanist François Durif kept a nursery of several grape varieties at his home in the commune of Tullins where he most likely had plantings of both Peloursin and Syrah.

At some point the two vines cross pollinated and Durif discovered a new grape variety growing in his nursery.

[5][6] Peloursin is a vigorous grapevine capable of producing high yields and excessive foliage if not kept in check with winter pruning and summertime leaf pulling.

In the Tarn department of South West France plantings of the grapes have been added to an experimental vineyard in Peyrole.

Jura wine producer Domaine Ganevat has plantings of Peloursin (called here Gros Béclan) in their Rotalier vineyard which they use in their vin de primeur blend.

The Vallée du Grésivaudan in the Isère department where Peloursin is believed to have originated
A vineyard of Durif/Petite Sirah in California. Recent DNA testing has shown that some California vineyards of Durif are actually field blends with Peloursin vines interspersed.
Peloursin crossed with Syrah (pictured) to produce Durif/Petite Sirah.