Teucrium
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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
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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
Selected specieswp
- Teucrium ajugaceum
- Teucrium argutum
- Teucrium balfourii
- Teucrium balthazaris
- Teucrium botrys – Cut-leaved Germander
- Teucrium canadense – American Germander
- Teucrium capitatum
- Teucrium chamaedrys – Wall Germander
- Teucrium corymbosum
- Teucrium cossonii – Fruity Teucrium
- Teucrium cubense
- Teucrium flavum – Yellow Germander
- Teucrium fruticans – Tree Germander, Shrubby Germander, Bush Germander
- Teucrium glandulosum
- Teucrium grandiusculum
- Teucrium hircanicum
- Teucrium laciniatum – Lacy Germander
- Teucrium marum Cat Thyme
- Teucrium polium – Felty Germander
- Teucrium pyrenaicum
- Teucrium racemosum
- Teucrium scordium – Water Germander
- Teucrium scorodonia – Woodland Germander
- Teucrium socotranum
- Teucrium townsendii
- Teucrium townsendii ssp. affine
- Teucrium townsendii var. townsendii
Gallery
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Teucrium. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Teucrium QR Code (Size 50, 100, 200, 500)
