Jack-in-the-pulpit (Arisaema triphyllum) is a unique plant with an interesting growth habit. The structure that most people call the jack-in-the-pulpit flower is actually a tall stalk, or spadix, inside a hooded cup, or spathe. The true flowers are the tiny, green or yellow-tinged dots that line the spadix. The entire structure is surrounded by large, three-lobed leaves that often hide the spathe from view. In late summer or fall, the spathe falls off and the flowers give way to decorative wands of bright red berries.