Culver'sroot

Cul·ver's root (kŭlʹvərz) n.

1. A perennial herb (Veronicastrum virginicum) native to eastern North America, having whorled leaves and small white or pinkish flowers in slender spikes.

2. The rootstock of this plant, formerly used in medicine as a cathartic and an emetic.

  [After Culver, 18th-century American physician.]

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