A number of plant species prefer clay soils, too, and are only found in the bottom of draws (or clay playas). Sneezeweed, blue flax, blueweed, and false grape are among those species that prefer to live in the clay soil.
The 2008 class of the Llano Estacado chapter of the Texas Master Naturalists visited a draw on a local ranch in mid-May. The photographs were taken by Leslie Harman, Chris Cherry, J.D. Drissel, Nina McCart, Sharon Long, Sean Patty, Burr Williams, Mark Pelham, Taffy Armstrong, and R. L. Orth.