Purple milkweed (Asclepias purpurascens) is a herbaceous plant species. It is in the genus Asclepias, making it a type of milkweed. It is native to the Eastern, Southern and Midwestern United States similar to the range of the invasive Old World Common Milkweed (Asclepias syriaca). The plant gets its name from the flowers that first develop a pink color but then turn darker purple as they mature.
Like other members of the milkweeds, several insects live off the plant, including the Monarch Butterfly (Danaus plexippus), the Milkweed beetle (Tetraopes tetraophtalmus), Large milkweed bug (Oncopeltus fasciatus), Small Milkweed Bug (Lygaeus kalmii) and Milkweed Leaf Beetle (Labidomera clivicollis). Other insects and pollinators feed off the flower's nectar.
This species is sometimes cultivated in gardens designed to attract butterflies, but is less common than the light purple Swamp milkweed (Asclepias incarnata) or the orange Butterfly weed (Asclepias tuberosa). The nectar of the plant attracts many other species of butterflies and insects as well.
Young developing plants show foliage reminiscent of Asclepias syriaca.
A red ant feeding on the flower's nectar
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