Recent high-resolution genomic analysis by USDA shows that some of the apples previously thought to be Malus sieversii are hybrid (or in a few cases just plain domestic apples). As a result, we’re updating our own information. If you have a grafted apple from us, you can determine its idenity with the table below.
The upshot is that we don’t have as many pure wild trees as we had thought. However, most of those that aren’t wild are hybrids, and still have some wild apple genes unlikely to be found in North American domestic apples. We’re keeping them for that reason.