Species library · Plants & herbs

Yellow Flag Iris: poisonous

Iris pseudacorus

☠ Poisonous. Do not eat.What to do if poisoning is suspected

Yellow Flag Iris is classed as poisonous in the Forage field guide. This page helps you identify it and tell it apart from similar species. It is not a foraging guide. When in doubt, have a find identified by an expert.

If you suspect poisoning, call your local poison control center right away. If someone has trouble breathing, has a seizure or is unconscious, call emergency services. Don't wait for symptoms: with some poisonings they only start hours later. Keep any leftovers of the find, they help identify it.

Usually seen from January to December in the northern hemisphere. Found in Wetland, Waterside.

☠ Poisonous
Yellow Flag Iris (Iris pseudacorus)

Photo: (c) E. Borchert, some rights reserved (CC BY), uploaded by E. Borchert · iNaturalist

When Yellow Flag Iris appears

Typical window in the northern hemisphere. The southern hemisphere runs about six months offset.

Where it grows

Yellow Flag Iris is usually found in Wetland, Waterside.

Look up Yellow Flag Iris in the app

In the Forage app, Yellow Flag Iris has a full field guide entry with more photos, key features and the species it can be confused with.

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Yellow Flag Iris: common questions

Is Yellow Flag Iris poisonous?

Yes. Yellow Flag Iris is classed as poisonous in the Forage field guide. Do not eat it. If you suspect poisoning, call your local poison control center right away, or emergency services if it is life-threatening.

When does Yellow Flag Iris appear?

Yellow Flag Iris usually appears from January to December in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather.

Where does Yellow Flag Iris grow?

Yellow Flag Iris is usually found in Wetland, Waterside.

One note before you head out

Forage helps you discover and identify wild plants, but identification is never 100% certain. Many edible plants have toxic lookalikes. Never eat anything you find based only on what this app tells you. Always confirm with a field guide, an experienced forager or a local expert. The season score tells you where to look, too: it’s not a guarantee. Mind conservation law and property rights as well.

Species photos via Wikimedia Commons and iNaturalist · full credits