Asclepias tuberosa
Asclepias tuberosa (also known as the butterfly flower) is a species of milkweed plant.  It belongs in the subfamily Asclepiadoideae.  It is native to North America.  It blooms from June to September.  The flowers are orange, red-orange, or yellow.  This species is found in prairies, meadows, and fields.  It likes well-drained soil and sunny or partly shaded places.  Butterfly Weed grows from 0.3 to 0.9 meters tall (1–3 feet).