Iris pseudacorus

Iris pseudacorus
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Iridaceae
Genus:	Iris
Subgenus:	Iris subg. Limniris
Section:	Iris sect. Limniris
Series:	Iris ser. Laevigatae
Species:	I. pseudacorus
Binomial name
Iris pseudacorus L.
Synonyms
List of synonyms 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

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.