jewelweed

Description:

Jewelweed plants grow 3 to 5 feet tall and bloom from late spring to early fall. The flowers are orange (or rarely yellow) with a three-lobed corolla; one of the calyx lobes is colored similarly to the corolla and forms a hooked conical spur at the back of the flower. Plants may also produce non-showy cleistogamous flowers

Habitat:

Along creeks and ditches. Native to North America

Notes:

Called Touch me not due to seed pods exploding when touched. Invasive in Europe.