Photo Credit: Spongeplant infestation © C. Evans

Photo Credit: spongeplant close up & copy; C. Evans

Photo Credit: spongeplant and hand & copy; G. Lovell

A floating to rooted stoloniferous perennial. Floating rosettes send runners out into the water, the ends of which form juvenile plants. Juvenile form has thick, spongy, floating ovate to spatulate leaves, usually with rounded tips and on an inflated stalk. Juvenile leaves and sometimes mature leaves have a patch of spongy tissue (aerenchyma) on lower surfaces. (from Weed Control Handbook)

Plant Details