powdery alligator-flag

T. dealbata is an evergreen, marginal aquatic perennial forming a clump of long-stalked, erect, narrowly ovate leaves to 40cm in length, covered with white powder, and slender stems bearing panicles of purple flowers 2cm across. Although not carniverous as such, this plant may trap and kill small insects such as hoverflies and small bees during the pollination process.