Clematis 'Princess Diana' (T)

Clematis 'Propertius' (A)

Clematis 'Proteus' (EL)

Clematis 'Purple Spider' (A)

Clematis 'Purpurea Plena Elegans' (Vt)

Clematis 'Red Pearl' (EL)

Clematis 'Red Star' (EL)

Clematis 'Remembrance' (LL)

Clematis 'Roguchi' (I)

Clematis 'Romantika' (LL)

Clematis 'Romantika' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Royal Velours' (Vt)

Clematis 'Rubra' (Vt)

Clematis 'Ruby' (A)

Clematis 'Ruriokoshi' (LL)

Clematis 'Rüütel' (EL)

Clematis 'Semu' (LL)

Clematis 'Shin-shigyoku' (EL)

Clematis 'Shirayukihime' (EL)

Clematis 'Snow Queen' (EL)

Clematis 'Snowdrift' (Ar)

Clematis 'Souvenir du Capitaine Thuilleaux' (EL)