This may be linked to the fact that they develop cerata (hornlike outgrowths). Their sturdy, straight trunks are heavily armed with hornlike knobs. Keratoderma is a hornlike skin condition. The genus is characterized by hornlike spurs on their anthers. Males possess paired horns, while females bear hornlike structures. It resembles a tall thin bird and looks hornlike. It is often nicknamed "The Hunt" or "The Trumpet Sonata", for the hornlike opening. The anthers have hornlike spurs, which, at over a millimeter long, are relatively large.