Can you teach even if your only BSN Graduate and has experience?

If you're talking about teaching in a nursing program of a college or university, a Master's degree is the minimum educational level that I'm aware of. However, I've also seen clinical instructors with a BSN (but who were also studying for Master's). I've only known one clinical instructor who had "only" a BSN, but she was also a helluva experienced nurse, with a 20-year impressive clinical resume.

I don't know of any college teaching positions that allow you to have a BSN only. In any event, the candidate would have to have the typing and communication skills of a college graduate, of course...

My community college has instructors with a BSN.

In Texas (where you and I both are), you can teach in the LVN program with a BSN. Additionally, you can co-teach some areas of an ADN program if you're actively in a MSN program (in other words, there's an MSN ultimately responsible for what you teach).

I havent seen any BSN only professors. All the ones I know have at minimum a masters degree in something.

My med surg instructors had BSN's...

I know you can only teach below your level and not above. So if you have a BSN you can teach at the Associate level, and if you have a Master you can teach at the BSN level and also associate level. (I guess you are better of with a masters if you want to teach). So at the very least you need a bachelors to teach.