Cerinthe, commonly called honeyworts, is a genus of flowering plants in the family Boraginaceae, placed in the order Boraginales. The genus comprises around six accepted species of annual and perennial herbs native to a circum-Mediterranean range extending from Morocco in the west to the Irano-Turanian Region in the east.
Plants in the genus are distinguished by several traits unusual within Boraginaceae. Their calyx consists of separate, free sepals rather than the fused sepals typical of the family. The corolla is elongated and tubular, often in shades of yellow, purple, or blue-purple depending on the species. Most strikingly, the fruit is schizocarpic and divides into only two nutlets at maturity, whereas the vast majority of Boraginaceae produce a fruit that splits into four nutlets. These diagnostic characters have long set Cerinthe apart within its family.
The best-known species is Cerinthe major, whose cultivar 'Purpurescens' — with deep blue-purple bracts and nodding tubular flowers — has become a popular ornamental garden annual across Europe and beyond. Other species include Cerinthe minor, Cerinthe glabra, Cerinthe retorta, and Cerinthe tenuiflora.
The genus has been recognised by European naturalists for centuries. John Gerard described it in his Herbal of 1597, noting a waxy taste in the flowers and leaves, and compiled names applied by Avicenna, Pliny the Elder, Conrad Gessner, Rembert Dodoens, Carolus Clusius, and Matthias de l'Obel — a testament to the plant's long history of observation across Mediterranean cultures.
Etymology
The genus name Cerinthe combines the Greek elements κερί/κηρός (keri/kēros, meaning "beeswax") and άνθος (anthos, meaning "flower"), yielding the sense "wax flower." The name reflects an ancient belief that bees collected wax directly from the plant's blossoms to construct their honeycombs.
Distribution
Cerinthe has a circum-Mediterranean distribution, spanning from Morocco in the west to the Irano-Turanian Region in the east. Individual species occupy a range of habitats across southern Europe, North Africa, and western Asia.
History
Cerinthe has been documented by European naturalists since at least the sixteenth century. John Gerard described it in his 1597 The Herbal, recording its appearance, growth habits, and flowering season, and noting that the flowers and leaves have a distinctly waxy taste — an observation consistent with the genus name. Gerard also catalogued earlier names assigned to Cerinthe by Avicenna, Pliny the Elder, Conrad Gessner, Rembert Dodoens, Carolus Clusius, and Matthias de l'Obel, indicating the plant was well-known across medieval and Renaissance natural history.
