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Iris prismatica - (image 1 of 4)

Taxonomy

Family: Iridaceae

Habitat

Marshes, swamps, moist meadows.

Associates

Distribution

Along the coast from New England and parts of Canada south to GA.

Morphology

Herbaceous perennial to 10 dm high from a creeping rhizome. Leaves basal, to 70 cm long and 1 cm wide, tapering to a point, parallel-veined. Flowering stems slender and much exceeding the spathes. Flowers blue to blue-violet; petals erect. Fruit a 3-chambered, erect and sharply angled capsule.

Notes

Flowers June to July

Wetland indicator: OBL

The erect petals and slender leaves distinguish this species from other purple-flowered native irises. Can also be identified in fruit by the sharply angled capsules.

Reference

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY.

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