The tall Compass Plant, Silphium laciniatum, fits right in between the two of the three flagpoles and can reach a height of ten to twelve feet. Its name is derived from the habit of its leaves aligning in a north-south direction, like its cousin Prairie Dock, Silphium terebinthinaceum. The Compass Plant has flowers and leaves all the way up its magnificient stem. The smaller Lead Plant, Amorpha canescens, (to its right) is actually a scrub. There are not many short prairie plants. The Lead Plant fills the bill for something one to three feet tall.