| Ragged Robin |
Lychnis flos-cuculi |
 |
| Rain Flower |
Zephyranthes grandiflora |
|
| Rambutan |
Nephelium lappaceum |
 |
| Red Catchfly |
Silene dioica |
|
| Red Cestrum |
Cestrum newellii |
|
| Red Clover |
Trifolium pratensis |
 |
| Red Deadnettle |
Lamium purpureum |
|
| Red Gum |
Corymbia calophylla |
 |
| Red Hot Poker |
Kniphofia |
|
| Red Lobster Claw |
Heliconia bihae |
 |
| Red Orache |
Atriplex hortensis |
|
| Red Passion Flower |
Passiflora racemosa |
|
| Redshank |
Polygonum persicaria |
|
| Rest Harrow (many) |
Ononis |
 |
| Rest Harrow |
Ononis cenisia |
|
| Rest Harrow |
Ononis repens |
|
| Rhodohypoxis |
Rhodohypoxis baurii |
|
| Ring Bellflower, Ringflower |
Campanula (Symphyandra wanneri) |
|
| Rock Bellflower |
Symphyandra (Campanula) zanzegura |
|
| Rock Cress (many) |
Arabis |
|
| Rock Cress |
Arabis alpina |
|
| Rock Cress |
Arabis 'Pinkie' |
|
| Rock Isotome |
Isotoma |
|
| Rock Jasmine (many) |
Androsace |
|
| Rock Jasmine |
Androsace |
|
| Rock Jasmine |
Androsace lactea |
|
| Rock Jasmine |
Androsace laevigata |
|
| Rock Purslane |
Calandrinia aff caespitosa |
|
| Rock Rose (many) |
Cistus |
|
| Rock Rose |
Cistus symphytifolius |
|
| Rock Rose |
Helianthemum hybrids |
|
| Rodgersia |
Rodgersia aesculifolia |
|
| Romulea |
Romulea bulbocodium |
|
| Roscoea (many) |
Roscoea |
|
| Roscoea |
Roscoea scillifolia |
|
| Rose Bay Willow-herb |
Chamerion (Epilobium) angustifolium |
|
| Rose Cactus |
Pereskia grandiflora |
|
| Rose Campion |
Lychnis coronaria |
|
| Rose Moss |
Portulaca grandiflora |
|
| Rose of Heaven |
Silene coeli-rosa |
|
| Rose Rock Cress |
Arabis blepharophylla |
|
| Rosemary |
Rosmarinus officinalis |
|
| Rosy Dipelta |
Dipelta florida |
|
| Rothrock's Townsend Daisy |
Townsendia rothrockii |
|
| Round-leaved Navelwort |
Cotyledon orbiculata v orbiculata |
|
| Royal Palm |
Roystonia altissima |
|
| Rubber Vine |
Cryptostegia grandiflora |
|
| Rubber Vine |
Cryptostegia madagascariensis |
|
| Rue Anemone |
Anemonella thalictroides |
|
| Rusty Foxglove |
Digitalis ferruginea |
|
