black swallow-wort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Gentianales
- family: Apocynaceae
- genus: Vincetoxicum
- species: Vincetoxicum nigrum
Leuven
Flanders
Belgium
Bergshamra- Djursholm
Stockholm
Sweden
Central Waterford- New Haven
- New London
- Orange
- Oxford
- Wilton
Connecticut- Cotuit
- East Falmouth
Massachusetts- East Lansing
Michigan- Borough of Bronx
- Cold Spring
- Manhattan
- West Point
New York- Hometown
Pennsylvania
United States
Cobourg