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...ps]] or carrots. The plant may be mistaken for parsnip due to its clusters of white tuberous [[root]]s. ...certainly the Greek [[philosopher]] [[Socrates]] drank a cup of some kind of hemlock infusion at his execution in [[399 BC]]. ''Cicuta virosa'' is howev

...at Lakes]] region and was first spotted in 1843<ref>{{cite web |title=List of invasive species in the Great Lakes Great Lakes United / Union Saint-Lauren ...shaped, and often lobed at the base. The [[flower]]s are in loose clusters of 3–20, (1–1.5&nbsp;cm) across, star-shaped, with five purple petals and

...] and southwest [[Asia]].<ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref> It is the tree orig ...th the leaf bases twisted to align the leaves in two flat rows either side of the stem, except on erect leading shoots where the spiral arrangement is mo