Iridaceae

Slender blue iris

Iris prismatica Pursh

Family: Iridaceae
Genus: Iris

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Slender blue iris (Iris prismatica) — FlowerPhoto: er-birds, CC BY 4.0, from iNaturalist

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Common names

By language (3)

Chinese: 角柱鸢尾
English: Slender blue iris
Persian: زنبق دانهحبهای

Synonyms

Iris boltoniana Schult.
Iris gracilis Bigelow
Iris prismatica var. austrina Fernald
Iris prismatica var. prismatica
Iris sibirica var. trigonocarpa (A.Braun & C.D.Bouché) Baker
Iris trigonocarpa A.Braun & C.D.Bouché
Limniris prismatica (Pursh) Rodion.

Flowers

In flower: May to June (from 39 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Canada: introduced, Lower 48 states: native

Photos

FlowerPhoto: er-birds, CC BY 4.0, from iNaturalist
FlowerPhoto: Becky Dill, CC0, from iNaturalist
FlowerPhoto: Jason K., CC BY 4.0, from iNaturalist
FlowerPhoto: er-birds, CC BY 4.0, from iNaturalist
Photo: Brian Finzel, CC BY-SA 4.0, from iNaturalist
Photo: Cliff from Arlington, Virginia, USA, CC BY 2.0, from Wikimedia Commons
Photo: Brian Finzel, CC BY-SA 4.0, from iNaturalist
Photo: Daniel Atha, CC0, from iNaturalist
Photo: Jason K., CC BY 4.0, from iNaturalist
Photo: Seig, CC BY 4.0, from iNaturalist
Photo: Tyler Ekholm, CC BY 4.0, from iNaturalist
Photo: Becky Dill, CC0, from iNaturalist

More in Iris

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.