Cnidoscolus stimulosus, commonly known as tread-softly or spurge nettle, the bull nettle, and stinging nettle. It is native to the Florida landscape and has stinging hairs that make handling it unpleasant without gloves. Its tuberous roots are edible when cooked​​​​. The plant also features conspicuous tubular-based white flowers that terminate the stem​​.

It is a member of the Euphorbiaceae but is not a true nettle. It prefers sandy, well-drained soil and mostly exists in pine/blackjack oak forests on sandhills, rims of Carolina bays, dunes, dry pastures, fields, and roadsides.

The green leaves of this plant are alternate and consist of three to five untoothed lobes. The large, white flowers have five petals.The tap root, after being cooked, can be used as an excellent potato substitute, tasting like pasta.

Source: Wikipedia