FWIW the russet seed potatoes that Walmart is selling this year from Dutch Valley Growers are Alpine Russets. The bag doesn't say what kind they are, but I emailed the company and they told me. Not sure how Alpine ranks among the other russets, but it's hard to pass up a 5 lb bag of seed potatoes for 6 bucks. Seems like the online seed potatoes are really expensive and I don't like the idea of grocery store potatoes unless they are organic.