Dichondra argentea

Dichondra argentea, the silver ponysfoot or silver nickel vine, is a species of flowering plant in the family Convolvulaceae. It is disjunctly distributed in New Mexico, Texas, Mexico, Colombia, Bolivia, northwest Argentina, and southeast Brazil, and has gone extinct in Arizona. A creeping perennial reaching 4 in high but growing 4 to 6 ft long, and hardy in USDA zones 10 through 12, in cultivation it is grown as annual, chiefly as a hanging accent plant or ground cover. There is a cultivar, 'Silver Falls'.