Oxygonum dregeanum var. wittei (Staner) R.A.Graham variety accepted

Oxygonum alatum var. dregeanum (Meisn.) Sond. variety synonym

Oxygonum dregeanum subsp. swazicum (Burtt Davy) R.A.Graham subspecies synonym

Oxygonum canescens subsp. subglabra Schinz subspecies synonym

Oxygonum zeyheri subsp. swazicum Burtt Davy subspecies synonym

Oxygonum dregeanum subsp. dregeanum subspecies accepted

Oxygonum dregeanum var. canescens (Sond.) R.A.Graham variety synonym

Polygonum dregei (Meisn.) Meisn. species synonym

Oxygonum zeyheri Sond. species synonym

Oxygonum wittei Staner species synonym

Oxygonum pubescens C.H.Wright species synonym

Oxygonum overlaetii Robyns species synonym

Oxygonum natalense Schltr. species synonym

Oxygonum dregei Meisn. species synonym

Oxygonum dregeanum subsp. swazicum (Burtt Davy) Germish. subspecies accepted

Oxygonum dregeanum subsp. strictum (C.H.Wright) Paiva & S.Ortiz subspecies accepted

Oxygonum dregeanum subsp. streyi Germish. subspecies accepted

Oxygonum dregeanum var. pilosum Germish. variety accepted

Oxygonum dregeanum var. lobophyllum Germish. variety accepted

Oxygonum dregeanum var. linearifolium Germish. variety accepted

Oxygonum dregeanum subsp. lanceolatum Germish. subspecies accepted

Oxygonum dregeanum var. dissectum Germish. variety accepted

Oxygonum dregeanum subsp. canescens (Sond.) Germish. subspecies accepted

Oxygonum dentatum Meisn. species synonym

Oxygonum canescens Sond. species synonym

Oxygonum calcaratum Burch. ex Meisn. species synonym

Oxygonum dregeanum var. pubescens (C.H.Wright) Burtt Davy variety synonym

Oxygonum delagoense var. strictum C.H.Wright variety heterotypic synonym

Oxygonum dregeanum var. strictum (C.H.Wright) R.A.Graham variety synonym

Oxygonum calcaratum Burch. species homotypic synonym