Photo: Iris missouriensis.

Flowering plants. Gothenburg bot.g., Sweden. Planted. 2005-06-04.
Iris missouriensis Nutt. Engl.: Rocky Mountain iris, western blue flag, western blue iris. Deu.: Missouri-Schwertlilie. Sven.: indianiris. Bot. syn.: Iris longipetala Herbert, Iris pariensis Welsh, Iris tomieana Herbert
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Photo: Iris missouriensis.