Also called butterfly flower.  Part of milkweed  genus Asclepias and dogbane  family Apocynaceae.

Native to North America.

Uses by native peoples
(Ethnobotany database)

Asclepias hosts caterpillars of 13 species
of butterflies and moths, in some areas. Growing milkweeds for
monarch butterflies (.pdf) Milkweed—It's Not
Just for Monarchs Uses by butterflies,
planting info Uses by 🐝︎ bees,
planting info (.pdf)

Bloom dates and planting info (.pdf page 3) bloom dates (Michigan) (.pdf page 3).

Learn more about butterfly milkweed Asclepias tuberosa

Discover Life Encyclopedia of Life Google Google images Michigan Flora Missouri Botanical Garden USDA PLANTS db USFS Wikipedia
Wildflowers of West Michigan (.pdf page 13)