There are a numerous anthills on the dry parts of Oughtonhead Common (which is marshy in places). Quite a few are adorned with Germander Speedwell (Veronica chamaedrys). The mounds created by Yellow Meadow Ants have looser soil, extra nutrients gathered by the ants and function as microclimates within the wider grassland. This encourages a variety of herbs including the Speedwells.