yellow iris

Iris pseudacorus

Member of irises (genus Iris)
iris family (family Iridaceae)
monocots (class Liliopsida)
flowering plants (subphylum Angiospermae)

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CalPhotos

• perianth generally bright yellow or cream with prominent brown veins, marks on sepals
• perianth tube 12–13 mm, barrel-shaped
• stem branched, 50–150 cm
• basal leaves 20–35 mm wide, stiff, midvein conspicuous
• 3–6 cauline leaves, similar to basal
• sepals widely oblanceolate, 5–8 cm, 35–50 mm wide
• petals obovate, clawed, 2–3 cm, 4–8 mm wide
• style branches < 25 mm, crests 7–10 mm, stigmas rounded
• Jasper, Marin, Mt. Tam; pond margins, estuaries

Toxicity of flag, iris, snake lily (Iris spp.):
1 – Skin contact with these plants can cause symptoms ranging from redness, itching, and rash to painful blisters like skin burns.
3 – Ingestion of these plants is expected to cause nausea, vomiting, diarrhea and other symptoms that may cause illness but is not life-threatening.

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Chris’s observations: none

Taxon info: iNaturalist – Calflora – CalPhotos – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora