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pale yellow iris

Habit Herbaceous perennial from short, thick rhizomes, forming dense clumps, the simple flowering stem up to 1 m. tall, leafy.
Leaves

Basal leaves stiff, narrowly linear, 5-9 dm. long and 10-15 mm. broad;

cauline leaves reduced upward.

Flowers

Inflorescence branched, few to several flowered, 1.5-5 dm. long;

flowers pale to deep yellow, purple-lined; pedicles up to 5 cm. long;

perianth parts fused in a tube at the base, the tube about about 12 mm. long;

sepals 3, obovate, spreading, about 5 cm. long;

petals 3, much shorter and narrower than the sepals, upright;

stamens 3, opposite the sepals;

style branches 3, about 22 mm. long, with 2 terminal lobes less than as long;

stigma triangular;

ovary inferior.

Fruits

Capsule 3-celled, leathery, 5-8 cm. long.

Iris pseudacorus

Iris purdyi

Flowering time May-July
Habitat Wetlands, lake and pond margins, irrigation ditches, backwaters, and other wet places where often disturbed; invasive.
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.
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Eurasia
Conservation status Not of concern
Sibling taxa
I. foetidissima, I. germanica, I. missouriensis, I. tenax
I. foetidissima, I. germanica, I. missouriensis, I. pseudacorus, I. tenax
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