Indian potato

noun4

1. •
   Any of several kinds of North American plants with edible, starchy bulbs or other underground structures, such as mariposa lilies, groundnuts, etc.
2. •
   Apios americana (American potato-bean), a terrestrial plant native to eastern North America;
3. •
   Orogenia spp. (now in Lomatium), a terrestrial plant native to western North America;
4. •
   Sagittaria latifolia (broadleaf arrowhead, duck potato), an aquatic plant native to North and South America.