Asclepias sibirica Linnaeus, Species Plantarum 1: 217. 1753.

"Habitat in Sibiria." RCN: 1786.

Lectotype (Grubov in Novosti Sist. Vyssh. Rast. 32: 138. 2000): Gmelin s.n., Herb. Linn. No. 310.35 (LINN) .

Current name: Cynanchum thesioides (Freyn) K. Schum. ( Asclepiadaceae).