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  1. Life
  2. Plants
  3. Vascular Plants
  4. Dicots
  5. Gentians, Dogbanes, Madders, and Allies
  6. Dogbanes and Milkweeds
  7. Cynanchinae
  8. Swallowwort

genus

Swallowwort

Cynanchum

Traits
Includes
2 native 2 present
Where
In the US
Source
iNaturalist

Field notes

Children

  • Honey-vine Climbing Milkweed native
  • Stranglewort
  • Caustic Vine
  • Talayote native
  • Rough Potato introduced
  • Cynanchum thesioides
  • Cynanchum boudieri
  • Mexican Swallow-Wort present
  • Warty Caustic Vine present
  • Cynanchum grandidieri
  • Cynanchum racemosum
  • Cynanchum marnierianum
  • Cuban Swallow-wort

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

Layer
Vines
Plant type
Perennial Vine Wildflower

From USDA PLANTS.

Top native swallowwort All

Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.

  • Honey-vine Climbing Milkweed Cynanchum laeve caterpillars 7 food 3 flowers 66
  • Talayote Cynanchum unifarium caterpillars 5

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