Species of flowering plant in the iris family Iridaceae
Iris pseudacorus
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Scientific classification
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Kingdom:
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Plantae
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Clade:
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Tracheophytes
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Clade:
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Angiosperms
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Clade:
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Monocots
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Order:
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Asparagales
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Family:
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Iridaceae
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Genus:
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Iris
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Subgenus:
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Iris subg. Limniris
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Section:
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Iris sect. Limniris
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Series:
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Iris ser. Laevigatae
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Species:
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I. pseudacorus
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Binomial name
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Iris pseudacorus
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Synonyms
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- Iris acoriformis Boreau
- Iris acoroides Spach
- Iris bastardii Boreau
- Iris curtopetala F. Delaroche
- Iris curtopetala F. Delaroche ex Redoute
- Iris flava Tornab.
- Iris lutea Lam.
- Iris pallidior Hill
- Iris paludosa Pers.
- Iris pseudacorus var. acoriformis (Boreau) Nyman
- Iris pseudacorus subsp. acoriformis (Boreau) K.Richt
- Iris pseudacorus var. acoroides (Spach) Baker
- Iris pseudacorus var. bastardii (Boreau) Nyman
- Iris pseudacorus subsp. bastardii (Boreau) K.Richt.
- Iris pseudacorus var. citrina Hook.
- Iris pseudacorus f. longiacuminata Prodán
- Iris pseudacorus f. nyaradyana Prodán
- Iris pseudacorus var. ochroleuca Peterm.
- Iris pseudacorus f. submersa Glück
- Iris sativa Mill.
- Limnirion pseudacorus (L.) Opiz
- Limniris pseudacorus (L.) Fuss
- Moraea candolleana Spreng.
- Pseudo-iris palustris Medik.
- Vieusseuxia iridioides F.Delaroche
- Xiphion acoroides (Spach) Alef.
- Xiphion pseudacorus (L.) Schrank
- Xyridion acoroideum (Spach) Klatt
- Xyridion pseudacorus (L.) Klatt
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Iris pseudacorus, the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet pseudacorus means "false acorus", referring to the similarity of its leaves to those of Acorus calamus (sweet flag), as they have a prominently veined mid-rib and sword-like shape. However, the two plants are not closely related.