Iridaceae

Douglas iris

Iris douglasiana Herb.

Family: Iridaceae
Genus: Iris

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Douglas iris (Iris douglasiana) — FlowerPhoto: Cricket Raspet, CC BY 4.0, from iNaturalist

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Common names

By language (5)

Cantonese: 道格鳶尾
Chinese: 道格拉斯鸢尾
English: Douglas iris
Persian: زنبق دوگلاس
Swedish: Douglasiris

Synonyms

Iris beecheyana Herb.
Iris douglasiana f. alpha (Dykes) R.C.Foster
Iris douglasiana var. alpha Dykes
Iris douglasiana var. altissima Purdy ex Jeps.
Iris douglasiana var. beecheyana (Herb.) Baker
Iris douglasiana var. bracteata Herb.
Iris douglasiana var. major Torr.
Iris douglasiana var. mendocinensis Eastw.
Iris douglasiana var. nuda Herb.
Iris douglasiana var. oregonensis R.C.Foster
Iris watsoniana Purdy
Limniris douglasiana (Herb.) Rodion.

Flowers

In flower: March to May (from 931 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: Cricket Raspet, CC BY 4.0, from iNaturalist
FlowerPhoto: Arvel Hernandez, CC BY-SA 4.0, from iNaturalist
FlowerPhoto: Chuck Wilson, CC0, from iNaturalist
FlowerPhoto: Irene, CC0, from iNaturalist
Photo: htasoff, CC BY 4.0, from iNaturalist
Photo: No machine-readable author provided. Curtis Clark assumed, CC BY-SA 2.5, from Wikimedia Commons
Photo: Alex Heyman, CC0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: David Anderson, CC BY 4.0, from iNaturalist
Photo: Cliff Hutson, CC BY 2.0, from Wikimedia Commons
Photo: Garth Harwood, CC BY 4.0, from iNaturalist
Photo: Franz Xaver, CC BY-SA 3.0, from Wikimedia Commons

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.