Syn.: Chamaedrys betonicifolia (Jacq.) Raf., Scorodonia betonicifolia (Jacq.) Moench, Teucrium betonicifolium Jacq., Teucrium canescens G. Forst., Teucrium maderense Lam.
Family: Lamiaceae Lindl.
Teucrium betonicum
Distribution: Endemic to the island of Madeira.
Ecology: It grows in laurel forests and on rocks in the central massif of Madeira, up to an elevation of 900 m asl. It occurs also on coastal slopes in the southern part of the island. It blooms from June to August.
Description: Shrub, 50–150 cm tall, densely branched. Leaves petiolate, lanceolate to ovate, 5–12 cm long, 2–4 cm wide, crenate to dentate, tomentose. Verticillasters 2-flowered in racemes, flowers shortly pedunculate, corolla purple, with one 5-lobed lip, upper lip of corolla absent. The fruits are nutlets.
Threat and protection: It is classified as Least Concern, listed on Annex II of the Habitats Directive. It has been estimated that the total population has 1000 individuals.
Teucrium betonicumTeucrium betonicum
Teucrium betonicumTeucrium betonicum
Teucrium betonicum
These images were taken in Portugal, Madeira, Boca da Encumeada (June 29, 2005).