Quail Bush
Rain Cloud Texas Ranger
Rainbow Leucothoe or Fetterbush
Ranunculus, improved
Red Barrenwort
Red Bunny Tails
Red Hot Poker
Red Hot Poker, Thompson
Red Yucca
Redbud, Chinese 'Avondale'
Redbud, Eastern
Redbud, Eastern 'Oklahoma'
Redbud, Oklahoma
Redbud, Western
Redvein Enkianthus
Redwood Sorrel, Oregon Oxalis
Redwood, Coast 'Aptos Blue'
Redwood, Coast 'Soquel'
Redwood, Coast 'Woodside Blue'
Redwood, Coast Redwood