- See under swallowwort(def 2).
- celandine(def 1).
- any of several plants of the milkweed family, especially a climbing vine, Cynanchum nigrum (black swallowwort), native to Europe, having small, brownish flowers.
- any of several Eurasian vines of the genus Cynanchum, esp C. nigrum, having small brownish-purple flowers: family Asclepiadaceae
- a related European herbaceous plant, Vincetoxicum officinale (or Cynanchum vincetoxicum), having an emetic root
- another name for greater celandine