Unknown compost alien

[davidbr]

Does anyone have any idea what this one is; it's sprung up as a weed in a tray of indoor pot-plants, presumably as a compost alien, and from the looks of the flower it'd appear to be some kind of labiate.

I've never seen anything matching it before, though, and it doesn't really look like the kind of plant that would be purposefully cultivated...?

[Tiggrx]

It looks rather like a pale flowered form of Red Dead-nettle (Lamium purpureum), but is a bit odd looking. The long calyx teeth might mean it is Northern Dead-nettle (Lamium confertum), but not a plant I am familiar with.

[leifus]

it looks like a pale ground-ivy to me but i see what you mean about the dead-nettle

[KeenTeen17]

the flowers of ground ivy are usually broader. I would go with red deadnettle because the flowers of northern deadnettle look more like the flowers of white deadnettle

[davidbr]

This one has really baffled me, so I'd appreciate any further suggestions - the flowers certainly look right for a Lamium species, but I'm pretty sure it isn't Red Dead-nettle; the shape of the leaves doesn't match.

EDIT - How about Henbit Dead-nettle, Lamium amplexicaule? It's a plant I've never seen before, but the pale flowers seem OK and leaf shape (from the pics I've managed to find on Google Image) is right too. Any opinions?

[leifus]

try this:

Henbit Deadnettle

[Tiggrx]

Originally Posted by davidbr

EDIT - How about Henbit Dead-nettle, Lamium amplexicaule? It's a plant I've never seen before, but the pale flowers seem OK and leaf shape (from the pics I've managed to find on Google Image) is right too. Any opinions?

Definitely not Henbit