COMMON SYNONYM: 3309C, 3309 Couderc
COUNTRY OF ORIGIN: France
SPECIES: Interspecific Cross (riparia; rupestris)
PEDIGREE: Riparia tomenteuse x Rupestris Martin
HARVEST TIMING: n/a
CLONES OFFERED: n/a
Information from the National Grape Registry, www.ngr.ucdavis.edu
OTHER INFORMATION: 3309C and many other rootstocks are very sensitive to viruses that cause graft incompatibility. It has small leaves with tufted hairs at the intersection on the lower surface.