Seeds Trust seems to specialize in heirlooms and natives. They have vegetable, herb, wild flower, and native grass seeds.
I am very pleased with my first order from this company based in Arizona.
They were prompt and even sent an e-mail to let me know my seeds were on the way. Once they arrived, I found that the order was complete and there were no substitutions.
They included germination instruction on every pack of seeds and also their complete seed catalogue for quick/future reference or orders.
I would recommend this company!
Here is a link that might be useful: Seeds Trust