Well, they ARE both Lamium. I didn't look up the botanical name of Dead Nettle or I would've realized that. And yes, henbit is smothering lawns all over the place here as well. Or maybe it is dead nettle ....

Fatamorgana, if you click on the sideways pictures we get they frequently turn round. Always worth trying.

Mine is already yellowing and dying out here because we've been in the mid- to upper-80s all week. I am not crazy about how invasive henbit it, but leave it alone until it starts dying back because the bees and other pollinators and beneficial insects need it at a time when not much else is blooming. Here where I live, it is one of the earliest signs of spring. Ours has been blooming since February and is dying back now. By the time it dies back, lots of other spring bloomers are in bloom for the bees and pollinators. Once the foliage is yellowing, I pull it out of flower beds and mow it down in the yard. I don't let it grow in the veggie garden. Since the veggie garden is heavily mulched, it never has been much of a problem there because of the mulch. Any henbit that pop up there or in the strawberry beds, which are in a separate area, gets pulled right away. Dawn

Maybe Senecio vulgaris, common groundsel??? If so, pretty early for bloom although it is a spring bloomer. Can be tough to control as it has developed resistance to many products. Contact your local extension service for the right treatment. hortster Here is a link that might be useful: common groundsel