'Rheingold' American Arborvitae Rhodendron, Pacific
Rhododendron 'King George' Rhododendron, Carolina
Rhododendron, Catawba (spp.) Rhododendron, Catawba 'Boursault'
Rhododendron, Catawba White Rhododendron, Cloudland
Rhododendron, Dahurian Rhododendron, Daurian
Rhododendron, Great (spp.) Rhododendron, Great White
Rhododendron, Great 'Golden Lights' Rhododendron, Great 'Great Laurel'
Rhododendron, Great 'Mandrin Lights' Rhododendron, Piedmont
Rhododendron, Rosebay (spp.) Rhododendron, Rosebay 'Golden Lights'
Rhododendron, Rosebay 'Great Laurel' Rhododendron, Rosebay 'Mandrin Lights'
Rhododendron: (n) 'Amy Cotta' Rhododendron: (n) 'PJM Elite'
Rhododendron: aberconwayi Rhododendron: aureum
Rhododendron: auriculatum Rhododendron: bureavii
Rhododendron: bureavii taliensia Rhododendron: calophytum
Rhododendron: carneum Rhododendron: cinnabarinum
Rhododendron: dendricola Rhododendron: fulvum
Rhododendron: grande grandia Rhododendron: horlickianum
Rhododendron: hybrid 'Else Frye' Rhododendron: hybrid 'Genevieve Schmidt'
Rhododendron: hybrid 'Gills Triumph' Rhododendron: hybrid 'Lemon Mist'
Rhododendron: hybrid 'Looderi King George' Rhododendron: hybrid 'Mrs. G.W. Leak'
Rhododendron: hybrid 'NE Plus Ultra' Rhododendron: hybrid 'Northern Starburst'
Rhododendron: hybrid 'Noyo Chief' Rhododendron: hybrid 'Painted Lady'
Rhododendron: hybrid 'Peach Blow' Rhododendron: hybrid 'Rose Mangles'
Rhododendron: hybrid 'Rubicon' Rhododendron: hybrid 'Sir Charles Lemon'
Rhododendron: hybrid 'Tsuta-momiji' Rhododendron: hybrid 'Wards Beauty'
Rhododendron: hyperythrum Rhododendron: iteophyllum
Rhododendron: macgregoriae Rhododendron: micranthum
Rhododendron: minus Rhododendron: montroseanum
Rhododendron: protistum grandia Rhododendron: roxieanum
Rhododendron: rubiginosum Rhododendron: scabrifolium spiciferum
Rhododendron: strigillosum Rhodoleia
'Rhodotera' Milkwort Rhodotypos (spp.)
Rhodotypos 'Black Jet Bead' Ribbon Fan Palm
Ribbonwood Riberry
Rice Flower Rice Flower, Pink
Rice Flower: ferruginea, Pink Rice Paper Plant
Rice Paper Plant, Chinese Rice Paper Plant: quinquefolia
'Richmond' Heavenly Bamboo 'Rigid Dwarf' Hinoki False Cypress
'Rikki' Dracaena: deremensis Rimu
Ring Cupped Oak 'Rio Samba' Rose
Rising Sun Maple 'Rita Marie Green' Allamanda
River Birch (spp.) River Birch 'Summer Cascade'
River Birch: nigra minor River Jam
River Maple (spp.) River Maple 'Beebe'
River Maple 'Pyramidale' River Maple 'Silver Queen'
River Maple 'Skinneri' River Maple 'Wieri'
River Red Eucalyptus River Red Gum
'Riversii' European Beech Robby
'Robert Culpepper' Japanese Holly 'Robin Hill' Apple Serviceberry
'Robinson' Flowering Crabapple