| | Plattdeutscher Name | Deutscher Name | Englischer Name | Botanischer Name | | Oettjebeie (Ostfriesland) | Erdbeere, Wald- | Strawberry, Alpine | Fragaria vesca |
| Oeverboestiger Hinnerk | Greiskraut, Gewoehnliches | Groundsel, Common | Senecio vulgaris |
| Oevernesiger Hinnerk | Greiskraut, Gewoehnliches | Groundsel, Common | Senecio vulgaris |
| Oeverwinn | Zaunwinde, Gewoehnliche | Bindweed | Calystegia sepium |
| Oeverwinn | Zaunwinde, Gewoehnliche | Bed, Granny Pop Out Of | Calystegia sepium |
| Oewecken (Westrup/Westfalen) | Erdbeere, Wald- | Strawberry, Alpine | Fragaria vesca |
| Ogenkruut | Maigloeckchen, Gewoehnliches | Lily-Of-The-Valley | Convallaria majalis |
| Ogenproekel (Ostfriesland) | Braunelle, Gewoehnliche | Self Heal | Prunella vulgaris |
| Ogenwoort | Augenwurz, Zottige | Athamanta | Athamanta cretensis |
| Ogenwoort | Augenwurz, Zottige | Carrot, Candy | Athamanta cretensis |
| Ogenwuurt | Augenwurz, Zottige | Athamanta | Athamanta cretensis |
| Ogenwuurt | Augenwurz, Zottige | Carrot, Candy | Athamanta cretensis |
| Oliev | Olive | Olive | Olea europaea |
| Oliev | Oelbaum | Olive | Olea europaea |
| Omspunnen Tuech (Helgoland) | Winde, Acker- | Bindweed, Field | Convolvulus arvensis |
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