Any plant of the genera Asclepias and Acerates, abounding in a milky juice, and having its seed attached to a long silky down; silkweed. The name is also applied to several other plants with a milky juice, as to several kinds of spurge. Its leaves are a favorite food source for the larvae of the monarch butterfly.
Asclepias tuberosa, a perennial herb that blooms with orange, red or yellow flowers. It is also called Butterfly Milkweed, Butterfly Weed, Chigger Flower, Pleurisy Root and Indian Paintbrush.
any of numerous plants of the genus Asclepias having milky juice and pods that split open releasing seeds with downy tufts