In 6 also -worts. [f. BUTTER sb.1 + WORT; cf. quot. 1597.] A plant with yellowish-green fleshy leaves (Pinguicula vulgaris) common on boggy ground; also the English name of the genus Pinguicula.
1597. Gerard, Herbal, cclxiii. § 4. 645. Called Pinguicula, of the fatnes or fulnes of the leafe, or of fatning; in Yorkshire … it is called Butterwoorts, Butter roote, and white roote.
1794. Martyn, Rousseau’s Bot., xii. 124. Pinguicula or Butterwort has a personate flower.
1848. C. A. Johns, Week at Lizard, 289. Pinguicula lusitanica, Pale Butterwort.
1863. Kingsley, Water-bab., v. 195. The little pink butterwort of Devon, and the great blue butterwort of Ireland.
