Is it lost in the San Jose Heritage Rose Garden? According to the references and photos it was also planted in the Huntingdon Botanical Gardens. You might check with them.
I've been on the quest for this hybrid for some time, and as best I can tell, it is extinct as of the last year or two. The San Jose accession appears to have been the last extant plant. A very disappointing loss.
As I understand the linked article from the American Rose Annual, 1987 "A PROBABLE AMPHIDIPLOID OF ROSA ABYSSINICA AND ROSA RUGOSA" written by Dr. Basye, the parentage should more properly read *seedling* of the diploid cross, (R. moschata abysinnica x R. rugosa rubra). It is a presumed self, and presumed amphidiploid, but Basye acknowledges possibility of it being a tri-species hybrid as he had tetraploid species in his garden which might have paired with an unreduced female gamete to produce this tetraploid. Thanks.
