Sphaeradenia
 Sphaeradenia is a genus of plant in family Cyclanthaceae. It contains the following species (but this list may be incomplete): Sphaeradenia brachiolata R.Erikss. Sphaeradenia laucheana (Sander ex Mast.) Harling Sphaeradenia sanctae-barbarae Harling Sphaeradenia versicolor R.Ekriss.