SPOTTED DEAD-NETTLE

Lamium maculatum

Mint / Dead-Nettle Family [Lamiaceae]

month8mar month8march month8apr month8april month8may month8jun month8june month8jul month8july month8aug month8sep month8sept month8oct

status
statusZneophyte
 
flower
flower8bicolour
 
flower
flower8mauve flower8purple flower8pink
 
inner
inner8white
 
morph
morph8zygo
 
petals
petalsZ2
 
type
typeZtieredwhorls
 
type
typeZspiked
stem
stem8square
 
smell
smell8strong
strong

10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
An escaped garden flower similar to White Dead-Nettle but with mauve-coloured flowers and spotted leaves.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
Tiered whorls of flowers in a short flower spike.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
Four (white at the moment) fruits developing within each sepal tube. Your Author knows not what the beetroot-coloured blotches on the leaves are, Spotted Dead-nettle does not normally exhibit these.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
The sepal tubes have 5 sepal teeth. Another identifying feature are the sepal teeth on each side of the lower part of the sepal tube.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
Flowers are in two parts, a large hood and two lower lobes usually rolled underneath.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
The lower lobes have white markings whilst the upper hood has just a white rim. Leaves are usually spotted white, as here.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
But the leaves may instead have a central ragged silvery blotch down the centre. Leaves irregularly double-toothed.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
Yet other leaves may have the white spots and the central blotch down the centre. It is possible the beetroot-red stains on some leaves are an extemsion of the beetroot-red staining of the sepal teeth and leaf stalk.


10th May 2015, dismantled railway, Kearsley, Bolton. Photo: © RWD
Leaf double-toothed and with shorter hairs than the main flower stem.


No relation to : Spotted Hawkweed (Hieracium maculatum), Spotted Rock-rose (Tuberaria guttata), Spotted Cat's-ear (Hypochaeris maculata), Spotted Laurel (Aucuba japonica), Spotted Medick (Medicago arabica), Common-Spotted Orchid (Dactylorhiza fuchsii) or Heath Spotted-Orchid (Dactylorhiza maculata) [plants belonging to differing families with similar names]

Resemblance to : White Dead-Nettle (Lamium album) but that has white (not mauve) flowers and there are no white or silvery marks or spots on the leaves.

Uniquely identifiable characteristics

Distinguishing Feature : The White Dead-Nettle appearance but with silvery-white markings on the leaves and mauve-coloured flowers.

A garden plant which escapes into waste places. It smells strongly, as does White Dead-Nettle.


  Lamium maculatum  ⇐ Global Aspect ⇒ Lamiaceae  

Distribution
 family8Mint / Dead-Nettle family8Lamiaceae

 BSBI maps
genus8Lamium
Lamium
(Dead-Nettles)

SPOTTED DEAD-NETTLE

Lamium maculatum

Mint / Dead-Nettle Family [Lamiaceae]