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''Echium virescens'' (Tower of jewels) is a plant included in the genus ''Echium''. It is endemic to the island of Tenerife, mainly in Macizo de Anaga and the Orotava Valley. It has its own flowering region and are in the lower zones of the slopes of the south of the island. ==Description== It is a herbaceous biennial plant and grows up to 2 m in height and requires plenty of sun and lives in dry conditions. Roses in several dense and cylindrical inflorescences, mainly in bifid lateral tops, the difference with the ''Echium webbii'' of the island of La Palma that has simple lateral tops. It has dense foliage with green-grey leaves. These are thick and persistent, lanceolate, at the base, and smaller throughout the inflorescence, with hairs on both faces. It has pale or pink flowers from the end of winter to the beginning of spring. The flowers have welded sepals at the base. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Echium virescens」の詳細全文を読む スポンサード リンク
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