sium

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Noun sium has 1 sense

Sium, genus Sium - perennial of wet and marshy places in the northern hemisphere: water parsnips
--₁ is a kind of rosid dicot genus
--₁ is a member of
Umbelliferae, family Umbelliferae, Apiaceae, family Apiaceae, carrot family
--₁ has members:
water parsnip, Sium suave; greater water parsnip, Sium latifolium; skirret, Sium sisarum