| Subject | English | German |
| agric. | bitter orange tree | Pomeranzenbaum (Citrus aurantium, Citrus aurantium var.bigaradia) |
| agric. | bitter orange tree | Bitter-Orange (Citrus aurantium, Citrus aurantium var.bigaradia) |
| agric. | mandarin-orange tree | Zwergapfelsinenbaum (Citrus deliciosa, Citrus nobilis, Citrus reticulata) |
| agric. | mandarin-orange tree | Mandarinenbaum (Citrus deliciosa, Citrus nobilis, Citrus reticulata) |
| med. | orange tree | Orangenbaum (citrus aurantium) |
| tech. | orange tree | Apfelsinenbaum |
| med. | orange tree | Apfelsinenbaum (citrus aurantium) |
| gen. | orange tree | Orangenbaum |
| med. | orange-tree | Apfelsinenbaum (citrus aurantium) |
| med. | orange-tree | Orangenbaum (citrus aurantium) |
| horticult. | orange-tree | Orangenbaum |
| horticult. | orange-tree | Apfelsinenbaum |
| nat.sc., agric. | Osage orange tree | Osagedorn (Maclura aurantiaca, Maclura pomifera) |
| agric. | Seville orange tree | Pomeranzenbaum (Citrus aurantium, Citrus aurantium var.bigaradia) |
| agric. | Seville orange tree | Bitter-Orange (Citrus aurantium, Citrus aurantium var.bigaradia) |
| agric. | sour orange tree | Pomeranzenbaum (Citrus aurantium, Citrus aurantium var.bigaradia) |
| agric. | sour orange tree | Bitter-Orange (Citrus aurantium, Citrus aurantium var.bigaradia) |
| life.sc., agric. | sweet orange tree | Orangenbaum |
| life.sc., agric. | sweet orange tree | Apfelsinenbaum |
| agric. | tangerine-orange tree | Zwergapfelsinenbaum (Citrus deliciosa, Citrus nobilis, Citrus reticulata) |
| agric. | tangerine-orange tree | Mandarinenbaum (Citrus deliciosa, Citrus nobilis, Citrus reticulata) |