Clematis patens C.Morren & Decne.
      
no HD illustration available (m3)
2 253592 Clematis patens C.Morren & Decne. Ranunculaceae
Rev. Hort. (Paris), ser. 4, vol. 27 (1855 - vol. 4): p. 341, t. 18 (1855) [A. Riocreux]