Ribes rubrum 'Rovada'

Ribes rubrum 'White Imperial'

Ribes tenue

Ribes uva-crispa 'Hinnomaki Red'

Ribes uva-crispa 'Pixwell'

Ribes uva-crispa 'Poorman'

Ribes uva-crispa 'Red Jacket'

Ribes x nidigrolaria

Ricinus communis 'Sanguineus'

Robinia hartwigii

Robinia hispida 'Macrophylla'

Robinia hispida 'Rosea'

Robinia pseudoacacia 'Frisia'

Robinia pseudoacacia 'Unifolia'

Rodgersia 'Bronze Peacock'

Rodgersia 'Die Schone'

Rodgersia 'Kupfermond'

Rodgersia aesculifolia

Rodgersia aesculifolia var. henrici

Rodgersia aesculifolia var. henrici 'Cherry Blush'

Rodgersia pinnata

Rodgersia pinnata 'Chocolate Wing'

Rodgersia pinnata 'Superba'

Rodgersia podophylla

Rodgersia podophylla 'Bloody Wheels'