Teucrium

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Tree Germander (Teucrium fruticans)


Plant Characteristics
Cultivation
Scientific Names

Lamiaceae >

Teucrium >


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Teucrium is a genus of perennial plants, of the family Lamiaceae. Common names for this genus include germanders. These species are herbs, shrubs or subshrubs. They are most common in Mediterranean climates.

An unusual feature of this genus compared with other members of Lamiaceae is that the flowers completely lack the upper lip of the corolla, although it is somewhat reduced also in other genera (Ajuga among them).

Teucrium species are rich in essential oils. They are valued as ornamental plants and pollen source, and some species have culinary and/or medical value.


Read about Teucrium in the Standard Cyclopedia of Horticulture 

Teucrium (Teucer was the first king of Troy). Labiatae. Germander. Herbs, subshrubs, or shrubs, some of which are greenhouse plants or outdoors in the extreme South, others of them hardy in the North and suitable for the wild-garden or rockwork.

Leaves entire, dentate or incised, sometimes many-cleft; floral lvs. similar or reduced to bracts: floral whorls 2-fld., rarely many-fld., arranged in racemose spikes or terminal heads, rarely with the fls. in a terminal spike or irregularly whorled; calyx tubular or campanulate, rarely inflated, 10-nerved, 5-toothed; corolla-tube included or rarely exserted, limb as if 1-lipped, lower lip large, upper very small or split so as to appear to be wanting; stamens 4, in 2 pairs, exserted through the split notch in the short upper lip: nutlets obovoid, reticulate, rugose.—About 160 species, widely distributed through the warmer and temperate regions of the world. Monographed by Bentham in De Candolle's Prodromus Systematis Naturalis, Vol. 12 (1848). The specific descriptions in the present article are largely based on this work but the sequence of sections and species is according to Briquet in Engler and Prantl, Pflanzenfamilien VI. 3a.

The teucriums are little known in cultivation. They probably present no special difficulties to the gardener.

T. frutescens, Hort., is offered in the trade as a shrub for the rockery, with downy foliage and heads of pale blue fls.; not known botanically; possibly it is an error for T. fruticans. CH


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Species

Teucrium capitatum

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