It might be a weed, but I think it’s also pretty enough to be included in Cee’s Flower of the Day. Garden Cress is a wild edible. It grows luxuriantly in nooks and crannies all over my yard. This small plant has interesting leaves. I press quite a few each year to use in pressed flower crafting. You can take a look at how to press this on The Flower Ark – Pressing Garden Cress.
What you might not have noticed in the first photograph is how very small the flower is. The flowers in the first photograph would barely cover the diameter of a dime.