The origin of the white grape variety is unknown. Synonyms are Beriertraube, Boboleihs and Dreifärbiger Heunisch. It is a colour mutation of the white heunisch variety (Gouais Blanc). The name derives from the change in colour (véraison) during the ripening phase from bronze-red to pale red and white. The pink Celtic variety no longer has any commercial significance in viticulture; in 2016 no stocks were recorded (Kym Anderson statistics). See a list of the different varieties of the Heunisch group under Gouais Blanc.
See pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)
For my many years of work as an editor with a wine and culinary focus, I always like to inform myself about special questions at Wine lexicon. Spontaneous reading and following links often leads to exciting discoveries in the wide world of wine.
Dr. Christa Hanten
Fachjournalistin, Lektorin und Verkosterin, Wien