There must be many dozens if not hundreds of rust colored iris with orange beards, so the only way you could get a possible id is to get some pictures. If you don't have a camera, you should try to borrow one, or at least have a friend take a couple of pictures before bloom season is over for you. Digital pictures are easy to load to the computer and upload to this site. If you have questions along the way ask us for help if you don't know how to do it.
Other things to note that are helpful with ID: fragrance, PBF (a flush of purple at the base of the fan), height, and bloom time (are they early in comparison with other iris in your neighborhood or late)? are all helpful indicators but are useful only along with the pictures.
If pictures are absolutely out of the question, I would suggest you look at some of the commercial iris growers sites that post alot of pictures, and see if you recognize yours. I would suggest blueJ at www.bluejiris.com or snowpeak iris at www.snowpeakiris.com as two growers with alot of pictures for starters. But be forewarned: there are TONS of gorgeous iris out there on those sites and you might just fall in love with a few and find yourself putting an order in!
Good luck and I hope this is useful to you.
Laetitia

I gave up long ago Id'ing iris, i have dozens of certain ones and singles of others. I just basically go with the fact they are pretty in any color by any name. Now if your wanting to breed them then of course names of parents are essiential, but other then that. i just say,"thats the pretty solid purple, thats the pretty solid lavender, thats the fabulous rootbeer and burple, oh and that one over there, it's the pretty lavender and yeller one."