honeywort: A genus of the monogynia order, belonging to the pentandra clasps of plants; and in the natural method ranking under the 41st order, Apiifloria. The limb of the corolla is a ventricose tube with the throat pervious; and there are two bilocular seeds. There are three species, natives of Germany, Italy, and the Alps. They are low annual plants with purple, yellow, and red flowers, which may be propagated by seed sown in autumn, in a warm situation.