This accession is a complex hybrid between sour cherry Pamjat Vavilova x (P. canescens x P. avium) and might have a potential as a dwarfing rootstock. It roots easily, and the two accessions I grafted onto it grow slowly but bloom profusely. Below are the pictures of the grafs on this tree. The PV Hybrid #1 blooms but never fruited for me. It is partially sterile according to the description I found on the Russian web. The accession was created in Russia. I should have the cuttings at the reallygoodplants.com during the winter sales.