[>> It is is a flowering, broadleaf plant. It grows in a groundcover or turflike manner, and is often present in yards.
The inflorescence consists of a purple-coloured centre encircled by small white-to-pink flowers. The flower takes on a match-like look, which is why the plant is called matchweed.<<]

Others say the name comes from turkeys on the run being tackled due to its ground covering entangling manner of growth; fog is disputable. Sometimes seen as a corruption of the word frog, who feed on it, also maybe indicating that it grows in dry regions and depends for its water supply on fog and dew.