On our recent visits to Ouabache State Park, we've seen a lot of these tiny wildflowers. They're so small that I can't get down to their level, so my photos are all taken looking down on them. Maybe one of you will be able to tell me what they are. But I think you'll agree that it's not necessary to know their correct identification in order to enjoy their loveliness.
This gives you an idea of their small size.
Update: Many thanks to Margaret Adamson and TexWisGirl for identifying this plant as Prunella Vulgaris (commonly known as "Self-Heal"). Click here to see what another blogger posted just yesterday about the healing benefits of this little beauty.