Spurge Nettle

Cnidoscolus stimulosus

''Cnidoscolus urens var. stimulosus'', the bull nettle, spurge nettle, tread-softly or finger rot, is a perennial herb covered with stinging hairs, native to southeastern North America. A member of the family Euphorbiaceae , it 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.
Spurge Nettle At Jensen Beach This is a picture of Spurge Nettle at Jensen Beach Park on Hutchinson Island in Jensen Beach, Florida. Cnidoscolus stimulosus,Geotagged,United States,Winter

Appearance

The green leaves of this plant are alternate, consisting of three to five untoothed lobes. The large, white flowers have five petals. Male and female flowers are on different plants. Flowers occur throughout the spring and summer followed by a small capsule that produces three large seeds. The entire plant above ground, including the flower petals, is covered with stinging hairs. The tap root can be used as an excellent potato substitute, tasting like pasta.

Naming

The species name ''stimulosus'' comes from the Latin ''stimulus'', meaning "goad" or "prod". This plant is also known as bull nettle and ''mala mujer'' , though the latter name is applied to several other plants with similar properties.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderMalpighiales
FamilyEuphorbiaceae
GenusCnidoscolus
SpeciesC. stimulosus