Royal Purple Smokebush
Royal Trumpet Vine, River's Trumpet
Rozanne Cranesbil
Rubber Plant, Rubber Tree
Ruby Flower Red Horsechestnut
Ruby Glow Manuka
Ruby King Penstemon
Rusty Sedge
Sage
Sageleaf Rockrose
Sago-Palm
Saltillo Sage, Coahuila Sage
San Ysidro Lane Agave
Sandhill Sage, Coast Sagebrush
Sansanqua or Sun Camellia
Santa Ana Cardinal Coral Bells
Santa Barbara Daisy
Santa Barbara Daisy, Mexican Daisy
Santa Cruz Blue Hibiscus
Santa Cruz Island Buckwheat
