Lamiastrum galeobdolon subsp. Argentatum, The Variegated Yellow Archangel.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)Variegated Yellow Archangel is a type of Dead-nettle. Also known as Garden Archangel, it is a close relative of our native Yellow Archangel looking quite similar but with variegated leaves.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)It is a garden escapee having been introduced into this country in the 1940’s and first recorded in the wild in the 1980’s.

It was introduced as a ground cover plant as it has attractive variegated leaves that are evergreen or semi-evergreen. It spreads by runners and covers areas quickly. Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)In the UK it is considered to be invasive and a threat to our ancient woodland plant species but just how invasive it is remains a question still unanswered.

This Archangel doesn’t seem to be having a great impact on our ancient woodlands. It seems to prefer the woodland edge and not to be spreading into the woods. My own observations are of Lesser Celandine, Wood Anemones and Bluebells growing freely amongst Variegated Yellow Archangel and the plant does seem to be restricted to the edge.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)The seed produced by the plant is said to be infertile and this limits it’s ability to spread into new areas. Most commonly, when it is introduced into a new area it is the work of man, either deliberately introducing it to beautify our woodland or through the dumping of garden waste or soil. New plants can arise from just a small piece of root.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)Summer leaves appear to be mostly green, marked with silver but winter foliage is often quite red.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)However the colour can vary quite a lot.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)The leaves are quite hairy on the top surface and less so underneath.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)That is the winter foliage, in April the flowers arrive.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)Like other Dead-nettles the flowers grow in whorls around a square, central stem with the lower ones opening first.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)The petals are fused into a corolla that forms a tube with a hood above the opening and a three lobed lip. the central lobe of the bottom lip is striped with orange markings.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)The hood is quite hairy.  Under the hood there are four stamens, two long and two short.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)In the centre of the stamens there is a style with a  two lobed stigma. The flowers are a source of nectar and pollen.

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum) Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)   Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)   Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)

Taxonomy

Kingdom: Plantae

Order: Lamiales

Family: Lamiaceae

Genus: Lamium

Species: Lamium galeobdolon subsp. Argentatum

Variegated Yellow Archangel (Lamiastrum galeobdolon subsp. Argentatum)Back to Yellow Wildflowers

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