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|species=calamus
|species=calamus
|taxo_author=L.
|taxo_author=L.
|common_name=Common Sweet Flag
|common_name=Common Sweet Flag, Calamus, Flagroot, Myrtle flag, Sweet calamus, Sweet flag
|name_ref=Flora - A Gardener's Encyclopedia
|habit=herbaceous
|habit_ref=Flora - A Gardener's Encyclopedia
|Max ht box=4
|Max ht metric=ft
|height_ref=Flora - A Gardener's Encyclopedia
|Min wd box=3
|Min wd metric=ft
|Max wd box=7
|Max wd metric=ft
|width_ref=Flora - A Gardener's Encyclopedia
|poisonous=parts may be toxic
|poison_ref=Plants for a Future
|lifespan=perennial
|life_ref=Flora - A Gardener's Encyclopedia
|exposure=sun, part-sun
|sun_ref=Flora - A Gardener's Encyclopedia
|water=wet
|features=flowers, edible, foliage
|flower_season=early summer, mid summer, late summer
|flower_ref=Flora - A Gardener's Encyclopedia
|flowers=orange, yellow
|Temp Metric=°F
|Temp Metric=°F
|min_zone=3
|min_zone=3
|usda_ref=Plants for a future
|usda_ref=Plants for a future
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|max_zone=10
|image=Acorus calamus1.jpg
|image=Acorus calamus1.jpg
|image_width=200
|image_width=200
'''''Acorus calamus''''', commonly known as '''sweet flag''' or '''calamus''' and various [[Juncaceae|rushes]] and [[sedge]]s,<ref>Other names include cinnamon sedge, flagroot, gladdon, myrtle flag, myrtle grass, myrtle sedge, sweet cane, sweet myrtle, sweet root, sweet rush, and sweet sedge</ref> is a [[plant]] from the [[Acoraceae]] family, in the genus ''[[Acorus]]''. It is a tall [[perennial plant|perennial]] [[wetland]] [[monocot]] with [[scent]]ed leaves and more strongly scented [[rhizome]]s, which have been used medicinally, for its odor, and as a [[Psychoactive drug|psychotropic drug]]. Probably indigenous to [[India]], ''Acorus calamus'' is now found across Europe, much of Asia, Australia, and southern Canada/Northern USA, where it may be mistaken for the native ''[[Acorus americanus]]''.
'''''Acorus calamus''''', commonly known as '''sweet flag''' or '''calamus''' and various [[Juncaceae|rushes]] and [[sedge]]s,<ref>Other names include cinnamon sedge, flagroot, gladdon, myrtle flag, myrtle grass, myrtle sedge, sweet cane, sweet myrtle, sweet root, sweet rush, and sweet sedge</ref> is a [[plant]] from the [[Acoraceae]] family, in the genus ''[[Acorus]]''. It is a tall [[perennial plant|perennial]] [[wetland]] [[monocot]] with [[scent]]ed leaves and more strongly scented [[rhizome]]s, which have been used medicinally, for its odor, and as a [[Psychoactive drug|psychotropic drug]]. Probably indigenous to [[India]], ''Acorus calamus'' is now found across Europe, much of Asia, Australia, and southern Canada/Northern USA, where it may be mistaken for the native ''[[Acorus americanus]]''.
The leaves are between 0.7 and 1.7 cm wide, with average of 1 cm. The sympodial leaf of ''Acorus calamus'' is somewhat shorter than the vegetative leaves. The margin is curly-edged or undulate. The [[spadix]], at the time of expansion, can reach a length between 4.9 and 8.9 cm (longer than ''A. americanus''). The flowers are longer too, between 3 and 4 mm. ''Acorus calamus'' is infertile and shows an abortive [[ovary (plants)|ovary]] with a shriveled appearance.
The leaves are between 0.7 and 1.7 cm wide, with average of 1 cm. The sympodial leaf of ''Acorus calamus'' is somewhat shorter than the vegetative leaves. The margin is curly-edged or undulate. The [[spadix]], at the time of expansion, can reach a length between 4.9 and 8.9 cm (longer than ''A. americanus''). The flowers are longer too, between 3 and 4 mm. ''Acorus calamus'' is infertile and shows an abortive [[ovary (plants)|ovary]] with a shriveled appearance.
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