Rosmarinus 'Tuscan Blue'

Rosmarinus officianalis 'Arp'

Rosmariunus officinalis 'Huntington Carpet'

Rubus 'Willamette'

Rubus idaeus 'Boyne'

Rubus idaeus 'Latham'

Rubus idaeus 'Vintage'

Rubus ideaus 'Marionberry'

Rubus loganobaccus

Rubus parviflorus

Rubus spectabilis

Rubus Watson 'Black Satin'

Rubus x hybrida 'Navaho'

Rubus x hybrida 'Triple Crown'

Rudbeckia fulgida 'Goldsturm'

Rudbeckia hirta 'Dakota Gold'

Rudbeckia hirta 'Dakota Red Shield'

Rudbeckia sunbeckia 'Sarah'

Rudbeckia sunbeckia 'Scarlet'

RUMEX SANGUINEUS

Sabal texensis

Sabal uresana

Salix alba 'Niobe'

Salix alba 'Tristis'

Salix alba sibirica

Salix babylonica

Salix babylonica 'Aurea'