Clematis orientalis L.
Synonym(s):
Clematis glauca Willd.
Data source(s):
  • Johnson, M. 2001. The Genus Clematis. Sweden, p.342
  • Grey-Wilson, C. 2000. Clematis the genus. A comprehensive guide for gardeners, horticulturists and botanists. London, UK: B.T. Batsford Ltd., p.163
  • Walters, S.M., et al. 1989. The European Garden Flora: Vol.3. Dicotyledons (Part 1). Cambridge: Cambridge University Press xv-474 pp.