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CCDB → Angiosperms → Polygonaceae → Truellum
| Taxon name | Status | Median (n) |
| Truellum sagittatum (L.) Soják | Synonym of Persicaria sagittata (L.) H. Gross | 15 |
| Truellum sieboldii Soják | Synonym of Persicaria sagittata (L.) H. Gross | 15 |
| Truellum dissitiflorum (Hemsl.) Tzvelev | Synonym of Polygonum dissitiflorum Hemsl. | 10 |
| Truellum hastatosagittatum (Makino) Soják | Synonym of Polygonum hastatosagittatum Makino | 10 |
| Truellum nipponense (Makino) Soják | Synonym of Polygonum muricatum Meisn. | 10 |
| Truellum thunbergii (Siebold & Zucc.) Soják | Synonym of Polygonum thunbergii Siebold & Zucc. | 20 |
| Truellum dissitiflorum (Hemsl.) Tzvelev | Synonym of Polygonum dissitiflorum Hemsl. | 10 |