Many species of Echium grow as small or medium-sized herbs. In the highlands of Tenerife, Echium wildpretii forms large rosettes and huge inflorescences two metres or more in height. Similar growth forms of other usually herbaceous genera can be found in other subtropical and tropical high-mountain areas worldwide. The Pico del Teide (3715 m), highest peak of Spain and Macaronesia, appears in the right central background.