Winter has definitely set in here in northern Indiana, so I am not taking many photos of plants these days. This is the time of year that I have a chance to go back through and post photos that I had intended to post earlier in the year but never did. Why not begin with a photo from March 2010... this is Piloblephis rigida, Wild Pennyroyal.
At the time that I took these photos, I was under the impression that Piloblephis rigida was endemic to Florida, but it appears that it is also known from a couple of locations in Georgia, where it is ranked S1. Piloblephis rigida grows in dry communites such as scrub, sandhills, and pine flatwoods. As with many mints, Wild Pennyroyal has various medicinal uses, including treatment of colds, fevers, and sores; it has also been used to induce vomiting.
You may be thinking, "that sure looks like a Satureja or Clinopodium." In fact, this low shrub is treated by some botanists as Satureja rigida or Clinopodium rigidum.