pennywort.

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Any member of the species Umbilicus rupestris of succulent, perennial flowering plants (penny-pies, wall pennywort, kidney wort, navelwort) in the stonecrop family (Crassulaceae).

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. An edible Asiatic pennywort (Centella asiatica)

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Any aquatic or semi-aquatic plant in the genus Hydrocotyle (water pennywort, Indian pennywort, marsh penny, thick-leaved pennywort, and white rot).

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Any aquatic or semi-aquatic plant in the genus Hydrocotyle (water pennywort, Indian pennywort, marsh penny, thick-leaved pennywort, and white rot). such as edible dollarweed (Hydrocotyle umbellata).

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Anemone hepatica.

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Virginia pennywort (Obolaria virginica)

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Ivy-leaved toadflax (Cymbalaria muralis)

Any of several not closely related plants around the world, generally with round leaves of about the shape and size of a penny. Any member of the species Cymbalaria aequitriloba, a plant with tiny ivy-like leaves and copious purple-pink flowers with yellow throats.