Rae,
I have at least a half dozen straight species type seeds and I can tell you they do not vary much. All clematis seed gets a hard head if viable. They all look relatively the same. Some have a lighter colored edge to the seed, but it is still hard. The only clematis I know that have small viable seed are the non-climbing types like C. stans, but of course the good seed are still hard.
On the link below, is a pic of a Clematis montana seedhead. It is not the best pic, but I think you can see the thickened seeds at the base.
Remy |
Here is a link that might be useful: Clematis montana seedhead
