Jack-in-the-Pulpit (Arisaema triphyllum) is a charming wildflower native to mid-western and eastern North America but easily grown in shady gardens elsewhere.
It derives its common name from its strange flower: a pocket-shaped pulpit (“spathe“) with a protruding hood that surrounds a central finger-shaped spadix (“jack“). Jack-in-the-Pulpit is also known as Indian turnip or bog onion.