If you were looking at wild plants, the one called Sweet Autumn Virgin's Bower (Clematis terniflora) is a non-native species that has mostly entire leaves. The one called Virgin's Bower (Clematis virginiana) is a native species with deeply cut leaves like the plant in your photo. So your plant isn't likely to be C. terniflora. But as bboy said, you need the flowers for a proper ID.

I have been searching the web trying to identify a wild clematis in my yard and came across this thread. A thread that has been going for eight years. Tonight I have learned that there are several similar species and some are known by several names. Clematis terniflora has at least two synonyms:Clematis maximowicziana and Clematis paniculata. And at least three common names: Sweet Autumn Clematis, Sweet Autumn Virgin's Bower, Japanese Clematis. It is a native of Japan and in some areas is an invasive weed. In other areas it is loved like most on this thread love it. There several similar species called Sweet Autumn and virgin's bower. But, vary in number of leaflets water and light requirements. Some have no odor, some have complete flowers and some male and female flowers are on different plants. In western US the native Clematis ligusticifolia is very similar. Same rambunctious growth habit and similar scent. There are at least three cultivors of this species. One of them is naturalized here in Missouri. I am now searching to determine which I have.

Well, I've spent a fair amount of time fighting honesuckle and multiflora rose to keep it out of the woods on properties I've worked at. Didn't realize until I Googled it that the native wild clematis, VB and Sweet Autumn Clematis were different, and that the non native one was invasive. It's the smelly one I want. The wild clematis is not showy enough to waste space on it in my tiny, tiny, tiny urban downtown row house yard. I don't feel there's much danger of my stuff invading a pristine natural area, the best luck a seed from my yard would have is to land on some vacant urban corner. I haven't read anything about the clematis being a big problem around here, but maybe that's because it is not very commonly grown or sold in nurseries. I don't mind cutting back the upper foliage, to keep it trained along the fence. My neighbors have a grape vine trellis that they have to keep after, but the roots don't wander, just the tops. But after that rose experience, I just don't want something with root suckers, because then I have to go into my neighbors yard to pull the stuff up, and it risks disrupting things, in my yard and hers. I don't want to accidentally uproot her tomatoes or something like that. Maybe I should go with a regular clematis. I sure do LOVE, LOVE the smell of the Sweet Autumn Clematis, and the flowers are pretty too. It smells like baby powder. I have such a tiny yard, I can never decide what to plant, because I am torn between wanting stuff to eat, smell and look pretty. I had to tear out my beloved crab apple which has all three qualities, because it was overrun with rust. I didn't treat it at first because the Cooperative Extension folks said it was just "cosmetic." But eventually the whole thing became infected and distorted and covered with the stuff. And I realized that the soil where all the leaves fell would now be infected for years to come. I finally put the poor thing out of its misery. Now there's a huge hole in my garden and I can't decide what to put there. So far I am replacing the tree with a red ninebark, but I don't know about along the fence behind it and on either side.

Sue, if you want to add that info to your profile so that it shows automatically by your name, here's how: Go to Your Houzz in the upper right of every page, click Edit Profile, and on the left side click advanced settings. Well down the advanced settings page is a blank labeled Climate Zone for Garden Forums along with a link to find your zone. If you add info on your state or the nearest large city you will get even better information since zone only relates to average coldest winter temperatures. Then return to the top of the page and click Done Editing.