Skip to definition.  Noun: butterfly weed   1. Erect perennial
of eastern and southern United States having showy orange
flowers     - orange milkweed, chigger flower, chiggerflower,
pleurisy root, tuber root, Indian paintbrush, Asclepias tuberosa
Derived forms: butterfly weeds  Type of: milkweed, silkweed
Encyclopedia: Butterfly weed