Clematis 'Propertius' (A)

Clematis 'Proteus' (EL)

Clematis 'Purple Spider' (A)

Clematis 'Purpurea Plena Elegans' (Vt)

Clematis 'Red Star' (EL)

Clematis 'Rhapsody' (EL)

Clematis 'Roguchi' (I)

Clematis 'Rosamunde' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Rouge Cardinal' (LL)

Clematis 'Royal Velours' (Vt)

Clematis 'Rubra' (Vt)

Clematis 'Ruriokoshi' (LL)

Clematis 'Rüütel' (EL)

Clematis 'Sanssouci' (M)

Clematis 'Semu' (LL)

Clematis 'Shin-shigyoku' (EL)

Clematis 'Shirayukihime' (EL)

Clematis 'Snow Queen' (EL)

Clematis 'Snowdrift' (Ar)

Clematis 'Star of India' (LL)

Clematis 'Stolwijk Gold' (A)