There are ten orchids listed by Wikipedia with the common name "Butterfly Orchid" and there are non orchids with names such as Poor Man's orchid and so on.

If you have orchid seeds the wait from sowing the seeds in a sterile medium to first flowering might be anything from about three years to a more than ten years.

Maybe go back to the source of the seeds to try and get a positive id on what you have.

Yes, it's as complicated as what you've found but the seeds you described don't sound like orchids. Could they be Schizanthus seeds (butterfly flower/poor mans orchid)?

Here is a link that might be useful: Schizanthus seeds

Rule of thumb: if you can see an individual seed, it is not an orchid seed.