SafePlants

Jack-in-the-Pulpit (Arisaema triphyllum)

Arisaema triphyllum, commonly known as Jack-in-the-Pulpit, is a fascinating wildflower native to eastern and midwestern North America. Its unique flower structure and interesting growth habit make it a popular choice for shade gardens.

Common Names

• Jack-in-the-Pulpit
• Bog Onion
• Brown Dragon
• Indian Turnip
• American Wake Robin
• Wild Turnip
• Dragon Root
• Devil's Dear
• Wake Robin
• Starch Wort

Taxonomy and Nomenclature

• Scientific Name: Arisaema triphyllum (L.) Schott
• Family: Araceae (Arum family)
• Synonyms: A. atrorubens, Arum triphyllum

Considerations for Pets

• The plant contains insoluble calcium oxalate crystals (raphites), similar to those found in Philodendron and Dieffenbachia.
• Eating parts of the plant can cause poisoning. The roots are specifically mentioned in this context.

Considerations for Children

• A favorite of children, but its berries are mentioned to be bright red.

Distribution and Habitat

• Native to eastern and midwestern North America.
• Found in rich, moist deciduous woods.
• Grows in moist understories in woodland habitats.

Morphological Characteristics and Growth Habits

• Herbaceous perennial plant.
• Stemless plant, typically 8 inches to 2 feet (30-90 cm) tall.
• Has one or two long-stalked, 3-parted (trifoliate) leaves. Some species have 5-13 leaflets.
• The "pulpit" is a spathe, often striped purple and green.
• The "Jack" is a flower-bearing spadix. Tiny flowers grow on the spadix.
• In late summer, a cluster of bright red berries appears.

Quirky Facts

• The plant has the ability to change sex.

Ecological Role

• Pollination occurs through a deception.

Additional Information

• The common name refers to the flower structure where an upright flower spike resembles a tiny man standing in a pulpit.