A modern reference to temperate woody plants, including updated content from this site and much new material, can be found at Trees and Shrubs Online.




Common names


A large genus of herbs, some woody at the base, and of dwarf shrubs. Leaves opposite, entire, toothed or pinnately lobed. Flowers in whorls, which are arranged in the form of often one-sided racemes, spikes or (sect. Polium) in heads. As always in the Labiatae the corolla is two-lipped, but the upper lip is split down as far as the calyx so that the bottom half of it appears to belong to the lower lip, which is thus apparently five-lipped. Stamens four, protruding through the slit of the upper lip. The generic name derives from the Greek teukrion and is associated in popular etymology with Teucer, Prince of Troy.

Species articles