Lotus macranthus is a species that grows in the Madeira archipelago.
Lotus macranthus has a taproot that zigzags as it grows into the ground. Its roots are whiteish in color, soft, brittle, juicy.[1]
Lotus macranthus was first scientifically described by Richard Thomas Lowe in 1838. He later described it as Pedrosia macrantha in 1856, a genus that is now synonymized with Lotus.
Its native range is in the Madeira archipelago.