Iris pseudacorus waterflag

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This alien iris is the only iris that is likely to be growing in the wild. It has escaped from our gardens and has firmly established itself in many areas of the state, becoming invasive.

Habitat & Range

Frequent in marshes, shallow water of lakes and ponds.

Scattered throughout the state.

Wetland codes

EMP:	OBL
NCNE:	OBL

Phenology

Flowers from late May to July.

Characteristics

Flowers bright yellow; 3 outer sepals('falls') with brown or purple markings near the base; 3 erect petals('standards'); stamens at base of sepals covered by 3 petaloid stigma lobes

Leaves narrow, sword-shaped, erect, < 1″ wide

Stems flattened, up to 3 feet long

Rhizomes thick, short, fleshy

Fruit 6 angled capsules

Height 2-3 feet