Jack in the Pulpit (Arisaema triphyllum)

I'm partial to the Name

It's common name describes it so well.
It practically jumps up in the spring, and it's very neat, and unique presentation really does look like some body preaching from a pulpit. It has distinctive foliage and a bonus of bright, shiny red berries in the fall. Being in a shady location, these berries really stand out!
Also, it has a history, a human side; the plant was used by native Americans (and early settlers) for a variety of medicinal applications, and the corm can be eaten (if first boiled or baked, which neutralizes the calcium oxalate reactivity).
Always a conversation piece.

(there's better pictures in the database, linked above).

Definitely a good shade plant! I have only one variety thus far and it gets quite large. It will form a colony in no time -- if you don't want that, just remove the clump of berries that develop after it blooms.

I find them naturally throughout my woodlands and I've moved a few up to garden beds around the house. Love this plant.

Up here they are usually found in woods, especially wooded hills (unfortunately neither are common around here any more).