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|Noun||1.||genus Sium - perennial of wet and marshy places in the northern hemisphere: water parsnips|
rosid dicot genus - a genus of dicotyledonous plants
Apiaceae, carrot family, family Apiaceae, family Umbelliferae, Umbelliferae - plants having flowers in umbels: parsley; carrot; anise; caraway; celery; dill
Sium suave, water parsnip - stout white-flowered perennial found wild in shallow fresh water; northern United States and Asia
greater water parsnip, Sium latifolium - large stout white-flowered perennial found wild in shallow fresh water; Europe