Arisaema triphyllum
Species of flowering plant
Arisaema triphyllum, commonly known as Jack-in-the-pulpit, is a species of flowering plant in the Araceae family. It is native to eastern North America and is known for its distinctive flower structure and unique reproductive strategy.
Description[edit | edit source]
Arisaema triphyllum is a perennial herbaceous plant that typically grows to a height of 30 to 65 cm. The plant is characterized by its trifoliate leaves, which consist of three leaflets. The central leaflet is usually larger than the lateral ones. The plant's most distinctive feature is its inflorescence, which consists of a spadix ("Jack") enclosed within a spathe ("pulpit"). The spathe is often green or purple and can be striped.
Habitat[edit | edit source]
Arisaema triphyllum is commonly found in moist, deciduous forests, often in rich, well-drained soils. It thrives in shaded areas and is frequently found in the understory of woodlands.
Reproduction[edit | edit source]
The plant exhibits a fascinating reproductive strategy known as sequential hermaphroditism. Young plants typically produce male flowers, while older, more robust plants produce female flowers. This strategy may help the plant conserve resources by producing less energetically costly male flowers when the plant is smaller and less capable of supporting seed production.
Ecology[edit | edit source]
Arisaema triphyllum plays a role in its ecosystem by providing food for various pollinators. The plant is pollinated by small flies and gnats, which are attracted to the spathe by its odor. The bright red berries produced by the plant are consumed by birds and small mammals, aiding in seed dispersal.
Cultivation[edit | edit source]
While Arisaema triphyllum is not commonly cultivated, it can be grown in gardens that mimic its natural habitat. It requires a shaded location with moist, well-drained soil. The plant is hardy in USDA zones 4 through 9.
Toxicity[edit | edit source]
All parts of Arisaema triphyllum contain calcium oxalate crystals, which can cause irritation if ingested. Handling the plant may also cause skin irritation in sensitive individuals.
Related pages[edit | edit source]
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Contributors: Prab R. Tumpati, MD