The genus includes both annual and perennial species; they spread by both seeds and stems rooting as they grow along the ground. They have square stems and coarsely textured pairs of leaves, often with striking patterns or variegation. They produce double-lipped flowers in a wide range of colours.[2]
The common name "deadnettle" refers to the resemblance of Lamium album[3] to the very distantly related stinging nettles, but unlike those, they do not have stinging hairs and so are harmless or apparently "dead".
Several closely related genera were formerly included in Lamium by some botanists, including Galeopsis (hemp-nettles) and Leonurus (motherworts).[
rple dead-nettle (lamium purpureum) is an extremely common lawn and roadside weed. It will carpet huge areas, and grow to be quite lush in fertile soil. It's a short-lived annual that will grow and flower even in the winter with mild temperatures. It's in the mint family, so it's a very mild mint - look closely at the stem and you can see it's square, or 4-sided, instead of round or cylindrical: Sometimes mint stems can be so hairy the best way to tell the stem is square is to feel it with your fingers. You'll feel the edges.
The entire plant is edible. The flavor is very mild, grassy - you can eat it stem and all, or pluck off the leafy tops. The leaves are covered in a dense hairy down - and this can take away some from the mild flavor. However you get used to it quickly.
Dead-nettle's reported to be highly nutritious, abundant in iron, vitamins, and fiber. The oil in the seeds is high in antioxidants. And the bruised leaves can be applied to external cuts and wounds to stop bleeding and aid in healing.
One great way to eat large quantities of this plant is to blend it into a smoothie. I'm a firm believer after many years of foraging that greens are the most important part of our diet. But instead of grazing and chewing all day (though chewing is important!), we can mimic an indigenous diet by blending up large amounts of greens and edible weeds into smoothies - the miracle tonic called the 'green smoothie'.