Major items
| Organic | Scientific name | Common name | Part | Origin |
| Ranunculus acris L | Buttercup | herb | W-Europe | |
| Ranunculus bulbosus L | ||||
| Ranunculus ficaria L (-> Ficaria verna Huds) | ||||
| Ranunculus ternatus Thunb | China | |||
| Rapanea melanophloeos (L) Mez | Cape beech | S-Africa | ||
| Raphanus sativus L var Sativus (= Raphanus sativus niger) | Black Radish | China | ||
| Rauvolfia caffra Sond | African Quinine | stem bark | E-Africa | |
| Rauvolfia confertiflora Pichon | root | Africa | ||
| CITES | Rauvolfia serpentina (L) Benth ex Kurz | Snake Root | root | SE Asia |
| Rauvolfia vomitoria Afzel | African Snakeroot | root / root bark | W-Africa | |
| Rebutia albiareolata | America | |||
| Rebutia albiflora | America | |||
| Rebutia archibuiningiana( Rebutia fiebrigii) | America | |||
| Rebutia aureispina | America | |||
| Rebutia camargoensis | America | |||
| Rebutia christinae | America | |||
| Rebutia diersiana | America | |||
| Rebutia einsteinii | America | |||
| Rebutia euanthema | America | |||
| Rebutia fabrisii | America | |||
| Rebutia flavistyla | America | |||
| Rebutia graciliflora | America | |||
| Rebutia jujuyana | Orange Crown Cactus | America | ||
| Rebutia mammulosa | America | |||
| Rebutia margaretae | America | |||
| Rebutia maxima | America | |||
| Rebutia pulchella | America | |||
| Rebutia senilis | America | |||
| Rebutia spegazziniana | America | |||
| Rebutia vulpina | America | |||
| Rebutia xanthocarpa | America | |||
| Rehmannia glutinosa (Gaertn) Steud | China | |||
| Reicheocactus pseudoreicheanus(Echinopsis famatimensis) | America | |||
| Renanthera monachica | Ecuador | |||
| Renealmia battenbergiana Cummins ex Baker | whole plant | W-Africa | ||
| Reseda ssp | Mignonette | herb | W-Europe | |
| Restrepia antennifera | Ecuador | |||
| Restrepia aristulifera | Ecuador | |||
| Restrepia brachypus | Ecuador | |||
| Restrepia chocoensis | Ecuador | |||
| Restrepia citrina | Ecuador | |||
| Restrepia condorensis | Ecuador | |||
| Restrepia contorta | Ecuador | |||
| Restrepia cuprea | Ecuador | |||
| Restrepia cymbula | Ecuador | |||
| Restrepia dodsonii | Ecuador | |||
| Restrepia echo | Ecuador | |||
| Restrepia elegans | Ecuador | |||
| Restrepia ephippium | Ecuador | |||
| Restrepia escobariana | Ecuador | |||
| Restrepia falkenbergii | Ecuador | |||
| Restrepia flosculata | Ecuador | |||
| Restrepia fritillina | Ecuador | |||
| Restrepia guttulata | Ecuador | |||
| Restrepia iris | Ecuador | |||
| Restrepia lansbergii | Ecuador | |||
| Restrepia mendozae | Ecuador | |||
| Restrepia mohrii | Ecuador | |||
| Restrepia muscifera | Ecuador | |||
| Restrepia nittiorhyncha | Ecuador | |||
| Restrepia pelyx | Ecuador | |||
| Restrepia persicina | Ecuador | |||
| Restrepia purpurea 003115 | Ecuador | |||
| Restrepia roseola 003116 | Ecuador | |||
| Restrepia trichoglossa | Ecuador | |||
| Restrepia vasquezii | Ecuador | |||
| Retama raetam (Forssk) Webb & Berthel | White Weeping Broom | Mediterannean | ||
| Reynoutria japonica Houtt | Japanese Kntoweed | rhizome | SE Asia | |
| Reynoutria multiflora (Thunb) Moldenke | root | SE Asia | ||
| Reynoutria multiflora (Thunb) Moldenke | Chinese knot-weed | China | ||
| Rhamnus alpina L subsp fallax (Boiss) Maire & Petitm | bark | SE-Europe | ||
| Rhamnus cathartica L | European Buckthorn | |||
| Rhamnus frangula L(-> Frangula alnus Mill) | ||||
| Rhamnus purshiana DC (-> Frangula purshiana (DC) A Gray) | ||||
| Rhaponticum carthamoides (Willd) Iljin | Maral Root | roots | Russia | |
| Rhaponticum uniflorum (L) DC | China | |||
| Rhetinantha acuminata | Ecuador | |||
| Rhetinantha divaricata | Ecuador | |||
| Rhetinantha encyclioides | Ecuador | |||
| Rhetinantha notylioglossa | Ecuador | |||
| Rhetinantha notylioglossa alba | Ecuador | |||
| Rhetinantha notylioglossa xanthina | Ecuador | |||
| Rheum australe D Don | Himalayan Rhubarb | root, leaf | Indian Sub | |
| Rheum emodi Wall ex Meisn (-> Rh australe D Himalayan Rhubarb | Himalayan Rhubarb | root, leaf | Indian Sub | |
| Rheum officinale Baill | Chinese Rhubarb | rhizome | China | |
| Rheum palmatum L | Chinese Rhubarb | rhizome, min 2% Rhein | China | |
| Rhipsalis baccifera | America | |||
| Rhipsalis baccifera (JS Muell) Stearn | Mistletoe cactus | aerial part | C-America | |
| Rhipsalis burchellii | America | |||
| Rhipsalis crispata | America | |||
| Rhipsalis elliptica | America | |||
| Rhipsalis fasciculata | America | |||
| Rhipsalis micrantha | America | |||
| Rhipsalis pacheco | America | |||
| Rhipsalis pachyptera | America | |||
| Rhipsalis pilocarpa | America | |||
| Rhipsalis russellii | America | |||
| Rhipsalis sulcata | America | |||
| Rhipsalis teres | America | |||
| Rhizophora mangle L | Red mangrove | leaf | C-America | |
| Rhizophora racemosa G Mey | W-Africa | |||
| Rhodiola rosea L | Rhodiola | rhizome | Siberia | |
| Rhododendron adamsii Rehder | Sagan | Siberia | ||
| Rhododendron anthopogon D Don | Zedoary | herb | Indian Sub | |
| Rhododendron aureum Georgi | leaves | Far East | ||
| Rhododendron chrysanthum Pall (-> Rh aureum Georgi) | leaves | Far East | ||
| Rhododendron ferrugineum L | Europe | |||
| Rhododendron molle (Blume) G Don | China | |||
| Rhododendron tomentosum Harmaja | Crystal Tea | twig tops | E-Europe | |
| Rhodymenia palmata (L) Greville | Dulse | leaf CO, cut | N-America | |
| Rhus aromatica Aiton | ||||
| Rhus chinensis Mill / Rhus potaninii Maxim / Rhus punjabensis Stew var sinica (Diels) Rehd et Wils | Chinese Sumac | China | ||
| Rhus coriaria L | Tanner's Sumac | fruit | MidEast | |
| Rhus glabra L | Sumach | root bark | N-America | |
| Rhus toxicodendron L (-> Toxicodendron pubescens Ivy | Poision Mill) | leaf | N-America | |
| Rhus vernix L (-> Toxicodendron vernix (L) Kuntze) | ||||
| Rhynchostele rossii | Ecuador | |||
| Rhynchostele stellata | Ecuador | |||
| Rhynchostylis gigantea alba | Ecuador | |||
| Rhynchostylis retusa | Ecuador | |||
| Ribes nigrum L | Black Currant | fruit | C-Europe | |
| Ricinodendron heudelotii (Baill) Heckel | African Oil Nut Tree | seed | W-Africa | |
| Ricinus communis L | Castor Bean | seed | Africa | |
| Robinia pseudoacacia L | Black Locust | |||
| Rodriguezia batemanii | Ecuador | |||
| Rodriguezia satipoana | Ecuador | |||
| Rosa × centifolia L | Cabbage Rose (pink flowers) | flower | MidEast | |
| Rosa × damascena Herrm | Rose | blossom bud | N-Africa | |
| bio | Rosa canina L | Dog rose | fruit | SE-Europe |
| Rosa hemisphaerica Herrm | Yellow Rose Flowers | flower | MidEast | |
| Rosa laevigata Michx | China | |||
| Rosa rugosa Thunb | China | |||
| Rosa spec | Rose Oil | flower | MidEast | |
| Rosmarinus officinalis L | Rosemary | leaf | N-Africa | |
| Rossioglossum schlieperianum | Ecuador | |||
| Rossioglossum splendens | Ecuador | |||
| Rubia cordifolia L | Indian Madder | stem | China | |
| Rubia tinctorum L | Common Madder | |||
| Rubus chingii Hu | China | |||
| bio | Rubus fruticosus L, sensu typo (-> R plicatus Weihe & Nees) | leaf | SE-Europe | |
| Rubus glaucus Benth | Andean Blackberry | fruit | S-America | |
| Rubus idaeus L | Raspberry | |||
| Rubus plicatus Weihe & Nees | Blackberry | leaf | SE-Europe | |
| Rudolfiella floribunda | Ecuador | |||
| Ruellia tuberosa L | ||||
| Rumex acetosa L | Sorrel | herb | C-Europe | |
| Rumex acetosella L | Sheep Sorrel | root | N-America | |
| Rumex acetosella L | Sheep Sorrel | N-America | ||
| Rumex crispus L | ||||
| Ruscus aculeatus L | Butchers' Broom | SE-Europe | ||
| bio | Ruta graveolens L | Common Rue | herb | SE-Europe |
| Ryania speciosa Vahl | wood | C-America |
