Lamium maculatum


Lamium maculatum is a species of flowering plant in the family Lamiaceae, native throughout Europe and temperate Asia.

Description

Lamium maculatum is a prostrate, spreading herbaceous perennial.
This species is very variable in terms of leaf size and shape, hairiness and flower colours. It reaches on average in height. It has erect, hollow and pubescent stems, branched at the base only. The soft hairy leaf blades are about long. They are sometimes spotted, toothed with long petioles, about long. Their shape varies from ovate-triangular to heart-shaped. The inflorescence bears about two to eight hermaphrodite flowers about long. The flowers of the plant are formed in the leaf axils of the upper leaf pairs. The upper lips of the flowers are helmet-shaped, usually pink or purplish, while the bilobate lower ones are whitish with purple dots. The stamens are located in the upper lip and have orange pollen. The flowering period extends from April through November.
It tends to grow higher in spring while during the colder weather it is much flatter to the ground. If subjected to light frost, L. maculatum will recover in spring as it enters its growth cycle.
The plant is a source of lamenallenic acid, a rare fatty acid.

Taxonomy

Lamium maculatum was described and named by Carl Linnaeus in 1763.

Habitat

It grows in a variety of habitats from open grassland to woodland, generally on moist, fertile soils at an altitude of above sea level.

Cultivation

Lamium maculatum is valued as groundcover in moist, shady areas. It will rapidly colonise an area, and may become invasive given suitable growing conditions. Numerous cultivars have been developed, mainly for their coloured and varigated leaves, including:-
  • 'Album'
  • 'Anne Greenaway'.
  • 'Aureum'
  • 'Beacon Silver'
  • 'Cannon's Gold'
  • 'Chequers'
  • 'Purple Dragon' has unusually purple snapdragon-type flowers several times a year, over bright silver foliage with a green edge: it grows tall in shaded or partially shaded areas.
  • 'Red Nancy'
  • 'Roseum'
  • 'Sterling Silver'
  • 'White Nancy'

Synonyms

Lamium affine Guss. & Ten. in M.TenoreLamium album var. maculatum L.Lamium cardiaca Cogn.Lamium columnae Ten.Lamium cupreum SchottLamium cupreum subsp. dilatatum NymanLamium dilatatum SchurLamium elegantissimum SchurLamium foliosum CrantzLamium grandiflorum Willd. ex Benth.Lamium grenieri MutelLamium gundelsheimeri K.KochLamium hirsutum Lam.Lamium laevigatum L.Lamium melissifolium Mill.Lamium mutabile Dumort.Lamium niveum Schrad.Lamium pallidiflorum BeckLamium rubrum Jenk.Lamium rugosum Sol. in W.AitonLamium stoloniferum Lapeyr.Lamium tillii Ten.Lamium truncatum Boiss.Lamium villosifolium A.P.Khokhr.Lamium vulgatum var. rubrum Benth.