| | Plattdeutscher Name | Deutscher Name | Englischer Name | Botanischer Name | | Ringelblume (Westpreussen) | Loewenzahn, Gewoehnlicher | Dandelion | Taraxacum officinale agg. |
| Ringelroos (Dithmarschen) | Narzisse, Gelbe | Lily, Lent | Narcissus pseudonarcissus |
| Ringelroos (Rendsburg/Schlesw.) | Winde, Acker- | Bindweed, Field | Convolvulus arvensis |
| Rippenkruut | Wegerich, Spitz- | Ribwort | Plantago lanceolata |
| Rippenkruut | Wegerich, Spitz- | Plantain, English | Plantago lanceolata |
| Rispenmeddel | Rispengras, Einjaehriges | Grass, Annual Blue | Poa annua |
| Rispenmerdel | Rispengras, Einjaehriges | Grass, Annual Blue | Poa annua |
| Riwe (Westfalen) | Hederich, Acker- | Radish, Wild | Raphanus raphanistrum |
| Rod Baesing (Mecklenburg) | Erdbeere, Wald- | Strawberry, Alpine | Fragaria vesca |
| Rod Bullerjan (Luebeck) | Weidenroeschen, Zottiges | Willowherb Hairy | Epilobium hirsutum |
| Rod Honerswarm (Bremen) | Gauchheil, Acker- | Pimpernel, Scarlet | Anagallis arvensis |
| Roddick | Rettich, Garten | Radish | Raphanus sativus |
| Rode Boeoek (Schlesw.-Holstein) | Buche, Blut- | Beech, Blood | Fagus sylvatica `Purpurea` |
| Rode Cypress (Schlesw.-Holst.) | Sumpfzypresse, Zweizeilige | Cypress, Swamp | Taxodium distichum |
| Rode Dullbeer | Nachtschatten, Schwarzer | Nightshade, Common | Solanum nigrum |
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