Iris
flag, fleur-de-lis, iris
Synonyms:
Belamcanda [FNA26]
5 species
1 subspecies and varieties
1 subspecies and varieties
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Iris foetidissima – stinking iris
Distribution: Occurring west of the Cascades crest in lowland western Washington; also in southwestern British Columbia and California.
Habitat: Fields, forest edge, and other disturbed areas at low elevations.
Origin: Introduced from Europe
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland western Washington; also in southwestern British Columbia and California.
Habitat: Fields, forest edge, and other disturbed areas at low elevations.
Origin: Introduced from Europe
Flowers: May-June
Growth Duration: Perennial
Iris germanica – bearded iris, German iris
Distribution: Occurring west of the Cascades crest in lowland western Washington; southwestern British Columbia to California, scattered eastward to eastern North America where widely distributed.
Habitat: Fields, ditches, forest edge, and other disturbed areas where escaping from cultivation at low elevation.
Origin: Introduced from southern Europe
Flowers: April-May
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland western Washington; southwestern British Columbia to California, scattered eastward to eastern North America where widely distributed.
Habitat: Fields, ditches, forest edge, and other disturbed areas where escaping from cultivation at low elevation.
Origin: Introduced from southern Europe
Flowers: April-May
Growth Duration: Perennial
Iris missouriensis – western blue flag, Rocky Mountain iris
Distribution: Occurring chiefly east of the Cascades crest in Washington, but also known from the Puget Sound area; British Columbia to California, east to the Rocky Mountains.
Habitat: Common in vernally moist meadows, especially in sagebrush and Ponderosa pine forests.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington, but also known from the Puget Sound area; British Columbia to California, east to the Rocky Mountains.
Habitat: Common in vernally moist meadows, especially in sagebrush and Ponderosa pine forests.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Iris pseudacorus – pale yellow iris
Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; British Columbia to California, east to Idaho and Montana; also in eastern North America.
Habitat: Wetlands, lake and pond margins, irrigation ditches, backwaters, and other wet places where often disturbed; invasive.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; British Columbia to California, east to Idaho and Montana; also in eastern North America.
Habitat: Wetlands, lake and pond margins, irrigation ditches, backwaters, and other wet places where often disturbed; invasive.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Perennial
Iris tenax – Oregon flag, tough-leaf iris
Distribution: Occurring west of the Cascades crest in Washington; Washington to California.
Habitat: Prairies, meadows, open oak and coniferous forests, at low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington to California.
Habitat: Prairies, meadows, open oak and coniferous forests, at low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
• var. tenax – Oregon flag, tough-leaf iris
