Seven year wait

Seven years ago (I think) I planted prairie roses in my yard. They have done OK, as they have spread about a bit in the yard. However, I've never seen them flower. Until today.

I'm pretty excited about this one bloom, and it looks like there might be a few others coming.

One of the reasons, or maybe THE reason, I haven't seen blooms on my prairie roses before this may be due to the fact that they seem to be infected with whatever the heck this orange stuff is.

It comes off in my fingers, and there doesn't seem to be any bugs about. I'm not exactly sure what it is. One suggestion is that it's some type of rust, which is one of the myriad of things roses are susceptible to - so I'm told. I tried cutting them back and cutting out the parts that have the orange stuff. We'll see if that helps.