Swamp milkweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Gentianales
- family: Apocynaceae
- genus: Asclepias
- species: Asclepias incarnata
- Sint-Amands
Flanders
Belgium- Bergshamra
- Djursholm
Stockholm- Göteborg
Västra Götaland
Sweden- Moody
Alabama- Applewood
- Colorado Springs
- Denver
Colorado- Milton
Delaware- Dyer
- Gary
- Hammond
- Notre Dame
- Porter
- South Bend
- Whiting
Indiana- Elwood
- Newton
- Saint Francis
Kansas- Calais
Maine- Beltsville
- Bladensburg
- Brentwood
- Cabin John
- Chesapeake Beach
- Cheverly
- Colmar Manor
- Cottage City
- East Riverdale
- Easton
- Edmonston
- Federalsburg
- Garrison
- Goddard
- Hyattsville
- Jessup
- Lanham
- New Carrollton
- North Beach
- Owings
- Owings Mills
- Point of Rocks
- Seabrook
- Severna Park
- Takoma Park
- Waldorf
- Woodlawn
Maryland- East Lansing
- Haslett
Michigan- Cinnaminson
- Riverton
New Jersey- Bakersville
- Franklin
- Jefferson
- Sparta
- Statesville
North Carolina- Yellow Springs
Ohio- Dayton
Tennessee- Washington, D. C.
Washington, D.C.- Antigo
- Green Lake
- Kenosha
- Lake Geneva
- Pleasant Prairie
Wisconsin
United States