Hi Chris: Several Sisyrinchium sp. come to mind. I don't know if Herbertia makes it over to the black lands or not. Hymenocallis were growing wild on the banks of the Trinity just south of College Station. Lilium species (or perhaps they are more East Texas). Ditto Iris virginica var. shrevei. Nothoscordum bivalve is a bulb that I know grows on the black lands, but I am not a big fan. Boyce Tankersley Director of Living Plant Documentation Chicago Botanic Garden 1000 Lake Cook Road Glencoe, IL 60022 tel: 847-835-6841 fax: 847-835-1635 email: btankers@chicagobotanic.org