Asiatica. I don't have experience with this species, but the literature suggests it's fairly similar to the much more common Trachelospermum jasminoides. The flowers are creamy/off-white and fragrant, the leaves are small then Confederate Jasmine. From what I understand it's hardiness is right in our range, 7b. We'll find out.
There are a dozen or so species of Trachelospermum. I just planted one (jasminoides) in the Florida garden with some trepidation. While it is wonderfully fragrant, it's also....extremely vigorous. I'll just do what I need to do to control it. I put it on the large wire "sunburst" trellis replacing a Bougainvillea that just couldn't stand up to the prolonged periods of drought. If the Jasmine works it will fail. I designed to trellis so that each "ray" would carry one shoot of the Bougainvillea; the Jasmine will no doubt just swallow the whole trellis in an amorphous mass. Anyway it'll smell good.