WHITE DEAD-NETTLE

WHITE ARCHANGEL

Lamium album

Mint / Dead-Nettle Family [Lamiaceae]  

month8mar month8march month8apr month8april month8May month8jun month8june month8jul month8july month8Aug month8sep month8sept month8Oct month8Nov

status
statusZarchaeophyte
 
flower
flower8white
 
inner
inner8cream
 
morph
morph8zygo
 
petals
petalsZ2
 
type
typeZtieredwhorls
 
stem
stem8square
 
stem
stem8hollow
 
smell
smell8pong smell8pongs smell8awful smell8vile smell8stinkssmell8reeks smell8nauseous
pongs
sex
sexZbisexual

3rd May 2010, Prestwich Forest Pk, Manchester. Photo: © RWD
Nettle like leaves in alternate side pairs up the square stem, but without stings.


21st April 2005, Sankey Canal, near St Helens Photo: © RWD
White flowers in chandelier-type rings with up to ten flowers in a ring; in smaller tiers up the stem interleaved by a pair of leaves. Toothed ovate to triangular leaves deeply but un-evenly cut.


21st May 2012, between the railway and the River Alt, Freshfield. Photo: © RWD
The bi-laterally symmetric flowers are two-lipped, and emerge from a sepal tube with sharply pointed sepals. The tiers below the two uppermost tier are now empty of their flowers.


19th April 2007, Chirk, Llangollen Canal. Photo: © RWD
White flowers in whorls similar to a gas-ring. Stem square, with hairs.


19th April 2007, Chirk, Llangollen Canal. Photo: © RWD
Flowers have a hairy upper lip, and a toothed lower lip with two lower lobes.


19th April 2007, Chirk, Llangollen Canal. Photo: © RWD
Three other golden markings are visible on the lower parts of the petals when viewed from the side. These dark-yellow markings are a feature of White Dead-nettle, rather than being signs of decay.


3rd May 2010, Prestwich Forest Pk, Manchester. Photo: © RWD
The sharply pointed sepal tubes have blackish markings at the bottom.


3rd May 2010, Prestwich Forest Pk, Manchester. Photo: © RWD
Normally hidden, there are four golden markings surrounded by blackish rims and hairs - these are the anthers and the hard-to-discern style and stigma which is concolorant with the petals. You can just see the white stigma poking down dogtooth-like from amongst the black and gold opened anthers.


3rd May 2010, Prestwich Forest Pk, Manchester. Photo: © RWD
The golden pollen and their almost black anthers.


8th April 2017, Blackbrook, nr St Helens, Lancs. Photo: © RWD


10th Aug 2017, Hathersage, Derbyshire. Photo: © RWD
Fitting snugly in the top of the white hooded petal are the 5 sexual organs. There are 4 white filaments, with each filament bearing an anther which has opened lengthways from the centre, making it double-barrelled and longer (in the ones here the lower halves seem to be mostly devoid of golden pollen grains). The filaments have short hairs with tiny glands at the end.
There is a fifth white object between the two pairs of filaments - this is the style, which near the end has a short 'icicle' pointing downwards; this being the stigma. There are longer non-glandular white hairs around the anthers.


8th April 2017, Blackbrook, nr St Helens, Lancs. Photo: © RWD
The stems are square with ribs along their corners.


8th April 2017, Blackbrook, nr St Helens, Lancs. Photo: © RWD
The square stems are hollow inside, with a square hole running the length of it.


8th April 2017, Blackbrook, nr St Helens, Lancs. Photo: © RWD
A pair of opposing leaves just beneath the whorl of flowers, now just sepal cups. The pairs of leaves are alternately at right-angles along the stem.


8th April 2017, Blackbrook, nr St Helens, Lancs. Photo: © RWD
The underside of the leaves showing their prominent veins. The sex organs in the top petal of the flowers are also visible from this angle.


Slight resemblance to : White versions of Common Hemp-Nettle.

Uniquely identifiable characteristics

White Dead-nettle is a perennial with an underground rhizome, unlike Red Dead-Nettle which lacks the rhizome and is an annual (only sometimes a perennial). The flowers overtop the leaves (unlike Red Dead-Nettle where the reverse is true).

Occupies roadside verges, hedgebanks, bare ground, waysides, and disturbed land in grassland.


  Lamium album  ⇐ Global Aspect ⇒ Lamiaceae  

Distribution
family8mint family8dead-nettle family8Labiatea family8Lamiaceae
 BSBI maps
genus8lamium
Lamium
(Dead-nettles)

WHITE DEAD-NETTLE

WHITE ARCHANGEL

Lamium album

Mint / Dead-Nettle Family [Lamiaceae]  

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