Also 6 trol flower. [tr. Ger. trollblume (whence app. mod.L. generic name Trollius, C. Gesner c. 1555, and F. trolle); app. f. stem of troll-en to roll, in reference to the globular shape of the flower. (Dr. Priors statement in quot. 1879 appears to be erroneous.)] A book-name for the Globe-flower (Trollius europæus).
1578. Lyte, Dodoens, III. lxxii. 418. Byside these kindes of Ranunculus is yet another strange kinde , the whiche is called Troll flowers. Ibid., 419. The Trol flowers grow upon the mountaynes of Switserlande.
1879. Prior, Pop. Names Brit. Plants (ed. 3), Troll-flower, the globe-flower, from Sw. troll a malignant supernatural being, a name given to this plant on account of its acrid poisonous qualities.