Taxonomic status: Synonym

homotypic synonyms:
Asclepias nigra L.; Cynanchum nigrum (L.) Pers.;

protologue: Mem. Wern. Nat. Hist. Soc. 1: 48 (1811)
URL protologue: https://archive.org/stream/memoirsofwerneri11811wern#page/48/mode/2up

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