Jack-in-the-Pulpit, a late spring wildflower, is found throughout the Eastern U.S. Numerous examples can be seen in the Arboretums wildflower garden next to the Visitors Center in April and May. Its unusual inflorescence is enclosed by a purple- to green-striped sheathing bract (the pulpit) called a spath. The inflorescence (the Jack) is called a spadix and consists of a fleshy axis covered with tiny flowers.

Jack-in-the-Pulpit has been used for medicinal purposes. Although parts of the plant are considered edible, they contain calcium oxylate crystals which when eaten raw can cause irritation or serious breathing problems.

The compound basal leaves have 3 leaflets that superficially resemble poison ivy.

Jack-in-the-Pulpit has been used for medicinal purposes. Although parts of the plant are considered edible, they contain calcium oxylate crystals which when eaten raw can cause irritation or serious breathing problems.

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