Yes I think this must be the case. They vine for 4 to 6 feet. When I first started cracking open seed catalogs I could find pole beans, and bush beans, but where are these half runners I’m supposed to get. The internet says they are an open pollinated mixed lineage from bush and pole beans. But I don’t know if that’s true. I can’t be certain if these are the same but you can search for “mountaineer half runners” they look right.