Asclepias incarnata (swamp milkweed, rose milkweed, rose milkflower, swamp silkweed, and white Indian hemp) is a herbaceous perennial plant species native to North America. It grows in damp to wet soils and also is cultivated as a garden plant for its flowers, which attract butterflies and other pollinators with nectar. Like most other milkweeds, it has sap containing toxic chemicals, a characteristic that repels insects and other herbivorous animals.