Cirsium

noun

Cir·​si·​um

ˈsərs(h)ēəm

: a widely distributed genus of prickly herbs (family Compositae) having the bristles of the pappus plumose compare carduus see bull thistle

Word History

Etymology

New Latin, from Greek kirsion, a thistle, probably from kirsos swollen vein; from the use of the thistle in antiquity in the treatment of swollen veins

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