Yellow Iris, Yellow Flag is a
native
perennial plant of the UK, typically found growing in water margins and coastal areas, to a mature height of up to 150cm.
Yellow Flag is a large fast-growing plant of lakes and ponds and is sometimes used to improve water quality, as it removes excess nitrogen and phosphorus that could otherwise cause algal blooms and disupt the aquatic ecological balance.
Botanic classification and naming: Yellow Iris, Yellow Flag is a member of the Iris (Iridaceae) family. The genus name
'Iris' identifies the plant as a Flag Iris and its species name 'pseudacorus' means 'false Acorus (leaf similarity)'.
Concerns: A toxic plant that can cause skin irritation on contact and severe gastrintestinal problems if ingested. Can spread quickly and exclude other plant species.
Benefits: Produces a lot of nectar and can be used as a wildlife bog garden plant.
Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.
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