heliotrope hē´lēətrōp˝ [key] [Gr.,=sun-turning] or turnsole, name for any plant that turns to face the sun, especially members of the genus Heliotropium of the family Boraginaceae. The garden heliotrope is a valerian, and the winter heliotrope, or sweet coltsfoot, is a composite.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: Plants