Plants

Viola rockiana

Viola rodriguezii

Viola roigii

Viola rolandi-bonaparte

Conical-leaf violet

Viola rossii

Viola rossowiana

Long-spur Violet

Viola rostrata

Viola rosulata

Early Yellow Violet

Viola rotundifolia

Viola rouyana

Viola rubella

Viola rubromarginata

Viola rudolphii

Viola rugosa

creeping-root violet

Viola rugulosa

Teesdale Violet

Viola rupestris

Viola rupicola

Viola ruppii

Viola saccata

Viola sacculus

Viola sandrasea

Viola saxatilis

Viola scandens

Viola schariensis

Viola schultzii

Viola scopulorum

Viola scorpiuroides

Great-spur Violet

Viola selkirkii

evergreen violet

Viola sempervirens

Viola sempervivum

Viola senzanensis

Seoul violet

Viola seoulensis

southern coast violet

Viola septemloba

serpentine violet

Viola serpentinicola

Viola serpyllifolia

Viola serresiana