The state flower of South Carolina, Carolina Jessamine, Gelsemium sempervirens, should not be confused with Confederate Jasmine, (which is actually an asian exotic import).  Jessamine is a bright yellow, trumpet shaped flower that blooms on a vine in the maritime forest on Dewees Island, often reaching high in the pine trees.  Sometimes the road along Old House Lane is littered with the blossoms.  All parts of the plant are poisonous, and though there were medicinal uses in the past, none are currently in the literature.  (Porcher, p.196)