Becky
I too think your seedling looks like it has Trahlyta in it. Have you had this one awhile? I've used Trahylta to hybridize, it is one of the earlier plants I used. I wish I would have kept record of the seeds I sent you to maybe help you out with some of your unknown crosses~
Edited to add: I have at least one Trahlyta seedling. The first year it bloomed it was a one hit wonder at about 12" tall. Last year it grew to probably around 2-1/2 feet and bloomed for several weeks. I'll see if I can find the photos when I get home from work. Break time is up!