Minnesota Wildflowers


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Iris pseudacorus (Pale-yellow Iris)

Plant Info
Also known as: Yellow Flag
Genus:Iris
Family:Iridaceae (Iris)
Life cycle:perennial
Origin:Eurasia
Status:
  • Early Detection weed, Ramsey County
  • Invasive - ERADICATE!
Habitat:part shade, sun; marshes, along shores
Bloom season:May - June
Plant height:2 to 4 feet
USDA PLANTS database:Minnesota county distribution map
Spotted in Ramsey County at:

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Detailed Information

Flower: 3-petals

[photo of flower] Flower is 3 to 4 inches across with 3 large petal-like sepals that hang down and 3 smaller upright petals. The lower sepals have a ring of reddish brown flecks near the base. There are a few flowers at the end of each stalk.

Leaves: basal simple

[photo of leaves] Leaves are long and sword-like, about 1 inch wide and 3 to 4 feet long with a pointed tip. A group of leaves fans out from the base of the plant. The leaves are longer than the flower stalk.

Notes:

Pale-yellow Iris is an invasive species in Minnesota. It can form large colonies and choke out native plants. It is the only yellow Iris in the U.S.

Where to buy native seed and plants

Help support this site by buying seeds & plants from these vendors. Tell them we sent you!

  • Shop for native seeds and plants at PrairieMoon.com!
  • Out Back Nursery and Landscaping - Where Ecology and Horticulture Unite
  • Shooting Star Native Seeds - Native Prairie Grass and Wildflower Seeds
  • Prairie Restorations - Bringing people together with the land

Map of native plant purveyors in the upper midwest

Photos taken at Long Lake Regional Park, New Brighton, MN June 2007

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by: Suzy in Fillmore County
on: 2011-06-04 17:17:38

There are literally hundreds of the in my yard. The line the spring that feeds in to the south fork of the root river.

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