are Cladanthus and Oxydendrum both plant genus ?
Cladanthus Cladanthus is a genus of plants in the family sunflower family, native to the Mediterranean region.
Cyclanthera Cyclanthera is a genus of flowering plants in the family Cucurbitaceae. The name comes from the fact that some species show extreme cases of stamen fusion forming a ring around the gynoecium, with a single locule.