The red variety (also California G 22-2) is a new breed between Zinfandel
x Mondeuse Noire
, The crossing took place in 1937 in the USA
at the Agricultural Experiment Station of the University of California
by Dr. Harold P. Olmo
(1909-2006). For a while, as a parent was mistaken Refosco dal Peduncolo Rosso
given or suspected, because Mondeuse Noire was long for this variety.