Acorus
Genus of aquatic plants / From Wikipedia, the free encyclopedia
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Acorus is a genus of monocot flowering plants. This genus was once placed within the family Araceae (aroids), but more recent classifications place it in its own family Acoraceae and order Acorales, of which it is the sole genus of the oldest surviving line of monocots. Some older studies indicated that it was placed in a lineage (the order Alismatales), that also includes aroids (Araceae), Tofieldiaceae, and several families of aquatic monocots (e.g., Alismataceae, Posidoniaceae). However, modern phylogenetic studies demonstrate that Acorus is sister to all other monocots. Common names include calamus and sweet flag.
Acorus | |
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Sweet flag Acorus calamus - spadix | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Acorales Reveal[1] |
Family: | Acoraceae Martinov[1] |
Genus: | Acorus L. |
Synonyms | |
Calamus Garsault [2] |
The genus is native to North America and northern and eastern Asia, and naturalised in southern Asia and Europe from ancient cultivation.[2][3][4][5][6][7] The known wild populations are diploid except for some tetraploids in eastern Asia, while the cultivated plants are sterile triploids, probably of hybrid origin between the diploid and tetraploid forms.