Tweedia coerulea D. Don ex Sweet [Synonym] = Oxypetalum coeruleum (D. Don ex Sweet) Decne. (Asclepiadaceae) Engish: caeruleus,-a,-um
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homotypic synonyms: Gothofreda coerulea species (D. Don ex Sweet) Kuntze; Oxypetalum coeruleum species (D. Don ex Sweet) Decne.;
protologue: Brit. Fl. Gard. 4: t. 407 ()
