navigation
Previous Plant Next Plant

xxxHome
x
xAbsinth wormwood
x
xAlligatorweed
x
xAmerican Lotus
x
xAmerican Pondweed
x
xAmpelopsis
x
xAustralian Pine
x
xBaccharis
x
xBamboo
x
xBanana Passionflower
x
xBarnyard Grass
x
xBermuda Grass
x
xBirdsfoot Deervetch
x
xBlack Locust
x
xBlack Mustard
x
xBlue Lettuce
x
xBrazilian Elodea
x
xBrazilian Peppertree
x
xBufflegrass
x
xBull Thistle
x
xBulrush
x
xBurdock
x
xButtonbush
x
xCanada Thistle
x
xCattails
x
xCheatgrass
x
xCherry Silverberry
x
xChinaberry
x
xChineese Lespedeza
x
xChinese Bush Clover
x
xChinese Privete
x
xChinese Tallow Tree
x
xClimbing Hempweed
x
xCogon Grass
x
xCommon Buckthorn
x
xCommon Cocklebur
x
xCommon Reed
x
xCommon Sowthistle
x
xCoontail
x
xCottonwood
x
xCrownvetch
x
xCurlyleaf Pondweed
x
xDalmation Toadflax
x
xDiffuse Knapweed
x
xDuckweed
x
xDyer's Woad
x
xElephant Ears
x
xElodea
x
xEnglish Ivy
x
xEurasian Watermilfoil
x
xEuropean Stickseed
x
xField Bindweed
x
xField Mustard
x
xField Sowthistle
x
xFloating Heart
x
xFloating Primrose
x
xFlowering Rush
x
xFragrant Water-Lilly
x
xGallant Solder
x
xGarlic Mustard
x
xxGiant Foxtail
x
xGiant Reed
x
xGiant Salvinia
x
xGlossy Buckthorn
x
xGorse
x
xHalogeton
x
xHempnettle
x
xHimalayan Raspberry
x
xHoary Cress
x
xHorsenettle
x
xHorseweed
x
xHoundstongue
x
xHydrilla
x
xIvy Gourd
x
xJapanese Barberry
x
xJapanese knotweed
x
xJohnson Grass
x
xJointed Goatgrass
x
xKlamath Weed
x
xxKochia
x
xKoster's Curse
x
xKudzu
x
xLeafy Spurge
x
xLimnophila
x
xLongspine Sandbur
x
xMalaleuca
x
xMedusahead
x
xMiconia
x
xMimosa
x
xMiramar Weed
x
xMultiflora Rose
x
xMusk Thistle
x
xNepalese Brown Top
x
xNorway Maple
x
xOld World Climbing Fern
x
xOrange Hawkweed
x
xOxeye Daisy
x
xPale Yellow Iris
x
xPaper Mulberry
x
xPara Grass
x
xParrotfeather
x
xPerenial Pepperweed
x
xPeriwinkle
x
xPlumeless Thistle
x
xPoison Hemlock
x
xPorcelainberry
x
xPrincess Tree
x
xPuncturevine
x
xPurple Loosestrife
x
xPurple Starthistle
x
xPupletop Vervain
x
xQuackgrass
x
xQueen Anne's Lace
x
xRedroot Pigweed
x
xReed Canarygrass
x
xRice Cut-Grass
x
xRiviere Golden Bamboo
x
xRussian knapweed
x
xRussian Thistle
x
xSalvinia minima
x
xScotch Broom
x
xScotch Thistle
x
xSkeleton Weed
x
xSlender Naiad
x
xSmartwed
x
xSmooth Brome
x
xSouthern Naiad
x
xSpatter-Dock
x
xSpiny Naiad
x
xSpotted Knapweed
x
xStrawberry Guava
x
xSulfur cinquefoil
x
xSunflower
x
xSwallowworts
x
xTamarisk/Salt Cedar
x
xTansy Ragwort
x
xTeasel
x
xTexas Blueweed
x
xTorpedo Grass
x
xTree of Heaven
x
xTropical Soda Apple
x
xTumble Pigweed
x
xUruguayan Primrose
x
xVariable-Leaf Milfoil
x
xWater Buttercup
x
xWater Chestnut
x
xWater Moss
x
xWater Paspalum
x
xWater Shield
x
xWater Hyacinth
x
xWater Lettuce
x
xWater Willow
x
xWestern Water Hemlock
x
xWhite Sweetclover
x
xWhitetop
x
xWild Mustard
x
xWild Parsnip
x
xWillows
x
xYellow Nutsedge
x
xYellow Starthistle
x
xYellow Toadflax


Pale Yellow Iris - Iris pseudacorus
Family: Iridaceae

View Video

THIS PAGE IS UNDER CONSTRUCTION.

Description

Yellow Flag Iris is a herbaceous perennial plant growing to 1-1.5 m (or a rare 2 m) tall, with erect leaves up to 90 cm long and 3 cm broad. The flowers are bright yellow, 7-10 cm across, with the typical iris form. The fruit is a dry capsule 4-7 cm long, containing numerous pale brown seeds.

Interesting facts

Iris pseudacorus is a species of Iris, native to Europe, western Asia and northwest Africa. Common names include yellow iris and yellow flag. Its specific epithet, meaning "false acorus," refers to the similarity of its leaves to those of Acorus calamus, as they have a prominently veined mid-rib and sword-like shape.

Iris pseudacorus grows best in very wet conditions, and is often common in wetlands, where it tolerates submersion, low pH, and anoxic soils. The plant spreads quickly, by both rhizome and water-dispersed seed. It fills a similar niche to that of Typha and often grows with it, though usually in less deep water. While it is primarily an aquatic plant, the rhizomes can survive prolonged dry conditions. Yellow iris has been used as a form of water treatment since it has the ability to take up heavy metals through its roots.

Links to more information

Pale yellow iris

New Biology Video Podcast The Wild Classroom Biology Concepts Biodiversity Home