It sure doesn't look like the picture on COTW and the sepals look longer and thinner as opposed to the larger and more rounded ones on there as well.

Here is a link that might be useful: Marie on COTW

My first thought was "Wada's Primrose"..Do the seed heads look yellowish in the sun but NOT that golden sheen we are use to seeing?...Jeanne

Here is a link that might be useful: Wada's Primrose

LOL, Jeanne, I can't distinguish between yellowish and golden sheen. ?? The seed head is a soft yellow, the 8 petals have a yellowish cast (rather than pure white) and some of them are not as pointy as the one pictured. Maybe they flatten out some later in the day? The backside midrib is green.

I've tried to match up the flower with internet sources, can't find a perfect match, What's the difference between sepals and tepals?

Sepals and Tepals are one in the same..They are the Flower petals...LOL..it's hard to id clematis sometimes..soft yellow..sounds like it could be...I've never looked at the backside ...sowwy...Jeanne

Maryann, I am sure Gardengal or someone else better versed in the specifics of botany can chime in here and give a clear explanation. When I first began being interested in clematis, I used the term petals and was summarily told that they were not called petals in clematis but that they were called tepals. Then someone else told me that they are actually sepals. This went back and forth so many times with no one ever explaining what the correct terminology was that I just gave up and started calling what are typically called petals on most flowers as either tepals or sepals on clematis. I figured anything was better than calling them petals! LOL I think I use them interchangeably now but I am sure they are not the same.

If you search COTW for a specific cultivar, one of the search options is tepal color. Since COTW is a clematis lovers haven, I think they know what they are talking about and I should probably start always calling them tepals. Old habits die hard though and since I have been using the two terms interchangeably now for years, I am sure it will be a hard habit to stop.

In a botany book I have it says" most flowers contain two sets of sterile appendages, the sepals and petals which are attached to the receptacle below the fertile parts of the flowers, the stamens and the carpels. The sepals occur below the petals and the stamens occur below the carpels....Commonly the sepals are green and the petals are brightly colored, although in many flowers both parts are similar in color."

Collectively the sepals form the calyx, and the petals form the corolla. Together, the calyx and the corolla constitute the perianth. In some flowers,.. the perianth parts are often referred to as tepals."

Confusing as mud to me so that is why I still refer to the "petals" as either sepals or tepals.

Hopefully someone more into the botany nomenclature process can offer a clearer picture than my botany book did.

Here's a pretty good explanation of sepals and tepals. It makes sense now lol.

Here is a link that might be useful: wikipedia reference to tepals

I can still see how the whole mess is a bit confusing to most people Jackie even after reading the Wikipedia listing. LOL

It looks just like my Wada's Primrose, which is blooming now for me. It produces a lot of shoots and is a heavy bloomer. I have never had wilt on it. I like it better than my Marie Boisselot. I think you will like it also. Karen

I do love it and will call it Wada's Primrose. I had dismissed that one cuz the pix I saw of it had 10 tepals instead of 8. It may have been an unlabeled bargain I picked up somewhere so not on my list. The backside looks like this:

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Thanks for all the lessons and help on this one. Will there be a test? Is there a "parts list schematic" somewhere pointing out all the clematis proper lingo?

Maryann, number of tepals (let's see, did I get that right?0, is not a conclusive way to identify a clematis. Take a look at the link to Wada's Primrose on COTW and you will see some flowers with 8 tepals and some with 10 tepals.

As far as parts list schematics, there are tons in the clematis books I have but am not sure if there is one online somewhere.

Here is a link that might be useful: Wada's Primrose on COTW.