Vincetoxicum hirundinaria - Swallow-wort
This is very poisonous but, as with many poisonous plants, it also has medical uses; the generic name Vincetoxicum means ‘antidote to poison’. The specific name hirundinaria refers to the resemblance its seed pods have in shape to a swallow’s wings or tail.
''Vincetoxicum hirundinaria'', commonly named white swallow-wort, is a long-lived herbaceous perennial of the genus ''Vincetoxicum'' in the family Apocynaceae.
Similar species: Gentianales