Distinctive pale gray, felty leaves and long stems with dense clusters of small flowers, typically pink but may be white or purplish. Flowers are very distinctive with reflexed petals and 5 hood-like appendages, each with a small projecting horn at the top. The fruit is large and greenish-yellow. Leaves are opposite or whorled in 3s or 4s. Milkweeds are a favored food source for Monarch Butterflies. The plant is toxic.