Sideritis, also known as ironwort, mountain tea, and shepherd's tea, is a genus of flowering plants well known for their use as herbal medicine, commonly as an herbal tea. They are abundant in Mediterranean regions, the Balkans, the Iberian Peninsula and Macaronesia, but can also be found in Central Europe and temperate Asia.
The genus is composed of short (8–50 cm), xerophytic subshrubs or herbs, annual or perennial, that grow at high altitudes (usually over 1000 m) with little or no soil, often on the surface of rocks.
It is pubescent, either villous or coated by a fine, woolly layer of microscopic intertwined hairs.
Sideritis inflorescence is verticillaster.
This plant is useful.
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