Cedronella canariensis (L.)Webb & Berthel. Basionym Dracocephalum canariense. Lamiaceae. Canary balm, Balm-of-Gilead, Canary Island tea. It smells slightly resinous of cedar, hence the diminutive name Cedronella. Perennial herb. Distribution: Canary Islands. True Balm-of-Gilead is the sap of the poplar, Populus candicans. It was drunk as a tea, and the aroma was believed to relieve colds. No medicinal use. Photographed in the Medicinal Garden of the Royal College of Physicians, London.